LegalizeDAG.cpp revision e526962fc59d38b4b0f671717df7657b8e0d8baa
13e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner//===-- LegalizeDAG.cpp - Implement SelectionDAG::Legalize ----------------===// 2edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman// 33e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// The LLVM Compiler Infrastructure 43e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// 53e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// This file was developed by the LLVM research group and is distributed under 63e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// the University of Illinois Open Source License. See LICENSE.TXT for details. 7edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman// 83e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner//===----------------------------------------------------------------------===// 93e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// 103e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// This file implements the SelectionDAG::Legalize method. 113e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// 123e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner//===----------------------------------------------------------------------===// 133e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 143e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner#include "llvm/CodeGen/SelectionDAG.h" 153e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner#include "llvm/CodeGen/MachineFunction.h" 1645b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner#include "llvm/CodeGen/MachineFrameInfo.h" 17acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey#include "llvm/CodeGen/MachineJumpTableInfo.h" 1861bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng#include "llvm/Target/TargetFrameInfo.h" 193e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner#include "llvm/Target/TargetLowering.h" 20e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner#include "llvm/Target/TargetData.h" 213d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng#include "llvm/Target/TargetMachine.h" 220f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner#include "llvm/Target/TargetOptions.h" 23adf6a965a321372c640845407195594835921eb4Chris Lattner#include "llvm/CallingConv.h" 243e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner#include "llvm/Constants.h" 25c10305743c313558405079452138f03124e87581Reid Spencer#include "llvm/DerivedTypes.h" 265e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner#include "llvm/Support/MathExtras.h" 275e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner#include "llvm/Support/CommandLine.h" 28a4f0b3a084d120cfc5b5bb06f64b222f5cb72740Chris Lattner#include "llvm/Support/Compiler.h" 297971514755a08ec156a1b9c0f7f05d67919c56b7Chris Lattner#include "llvm/ADT/DenseMap.h" 30f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner#include "llvm/ADT/SmallVector.h" 3100755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner#include "llvm/ADT/SmallPtrSet.h" 32033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng#include <map> 333e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnerusing namespace llvm; 343e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 355e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner#ifndef NDEBUG 365e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattnerstatic cl::opt<bool> 375e46a19ec848cd4fc9649bd5170c43d9e657668cChris LattnerViewLegalizeDAGs("view-legalize-dags", cl::Hidden, 385e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner cl::desc("Pop up a window to show dags before legalize")); 395e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner#else 405e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattnerstatic const bool ViewLegalizeDAGs = 0; 415e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner#endif 425e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner 433e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner//===----------------------------------------------------------------------===// 443e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// SelectionDAGLegalize - This takes an arbitrary SelectionDAG as input and 453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// hacks on it until the target machine can handle it. This involves 463e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// eliminating value sizes the machine cannot handle (promoting small sizes to 473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// large sizes or splitting up large values into small values) as well as 483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// eliminating operations the machine cannot handle. 493e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// 503e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// This code also does a small amount of optimization and recognition of idioms 513e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// as part of its processing. For example, if a target does not support a 523e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// 'setcc' instruction efficiently, but does support 'brcc' instruction, this 533e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// will attempt merge setcc and brc instructions into brcc's. 543e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// 553e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnernamespace { 56360e8200ec544a3c877ff74b48f445140ac9bbd6Chris Lattnerclass VISIBILITY_HIDDEN SelectionDAGLegalize { 573e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner TargetLowering &TLI; 583e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SelectionDAG &DAG; 593e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 606831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Libcall insertion helpers. 616831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 626831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// LastCALLSEQ_END - This keeps track of the CALLSEQ_END node that has been 636831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// legalized. We use this to ensure that calls are properly serialized 646831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// against each other, including inserted libcalls. 656831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand LastCALLSEQ_END; 666831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 676831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// IsLegalizingCall - This member is used *only* for purposes of providing 686831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// helpful assertions that a libcall isn't created while another call is 696831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// being legalized (which could lead to non-serialized call sequences). 706831a815999dde4cf801e2076e66b4943964daf2Chris Lattner bool IsLegalizingCall; 716831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 723e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner enum LegalizeAction { 7368a17febc70d9beb5353454e0c6d136ca1e87605Chris Lattner Legal, // The target natively supports this operation. 7468a17febc70d9beb5353454e0c6d136ca1e87605Chris Lattner Promote, // This operation should be executed in a larger type. 75d74ea2bbd8bb630331f35ead42d385249bd42af8Chris Lattner Expand // Try to expand this to other ops, otherwise use a libcall. 763e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner }; 776831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 783e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// ValueTypeActions - This is a bitvector that contains two bits for each 793e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// value type, where the two bits correspond to the LegalizeAction enum. 803e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// This can be queried with "getTypeAction(VT)". 8168a17febc70d9beb5353454e0c6d136ca1e87605Chris Lattner TargetLowering::ValueTypeActionImpl ValueTypeActions; 823e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 833e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// LegalizedNodes - For nodes that are of legal width, and that have more 843e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// than one use, this map indicates what regularized operand to use. This 853e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// allows us to avoid legalizing the same thing more than once. 86718071c476014cb0aaff9c7d018120d5a8930217Chris Lattner DenseMap<SDOperand, SDOperand> LegalizedNodes; 873e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 8803c8546ec57523970874917854a2fb77b1ff598eChris Lattner /// PromotedNodes - For nodes that are below legal width, and that have more 8903c8546ec57523970874917854a2fb77b1ff598eChris Lattner /// than one use, this map indicates what promoted value to use. This allows 9003c8546ec57523970874917854a2fb77b1ff598eChris Lattner /// us to avoid promoting the same thing more than once. 9140030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner DenseMap<SDOperand, SDOperand> PromotedNodes; 9203c8546ec57523970874917854a2fb77b1ff598eChris Lattner 93c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// ExpandedNodes - For nodes that need to be expanded this map indicates 94c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// which which operands are the expanded version of the input. This allows 95c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// us to avoid expanding the same node more than once. 9640030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner DenseMap<SDOperand, std::pair<SDOperand, SDOperand> > ExpandedNodes; 973e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 98c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// SplitNodes - For vector nodes that need to be split, this map indicates 99c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// which which operands are the split version of the input. This allows us 100c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// to avoid splitting the same node more than once. 101c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::map<SDOperand, std::pair<SDOperand, SDOperand> > SplitNodes; 102c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1037f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// ScalarizedNodes - For nodes that need to be converted from vector types to 1047f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// scalar types, this contains the mapping of ones we have already 105c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// processed to the result. 1067f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman std::map<SDOperand, SDOperand> ScalarizedNodes; 107c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1088afc48e44ad8868c1d41511db645e2ba1a4b894eChris Lattner void AddLegalizedOperand(SDOperand From, SDOperand To) { 10969a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner LegalizedNodes.insert(std::make_pair(From, To)); 11069a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner // If someone requests legalization of the new node, return itself. 11169a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner if (From != To) 11269a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner LegalizedNodes.insert(std::make_pair(To, To)); 1138afc48e44ad8868c1d41511db645e2ba1a4b894eChris Lattner } 11403c8546ec57523970874917854a2fb77b1ff598eChris Lattner void AddPromotedOperand(SDOperand From, SDOperand To) { 11540030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner bool isNew = PromotedNodes.insert(std::make_pair(From, To)); 11603c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(isNew && "Got into the map somehow?"); 11769a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner // If someone requests legalization of the new node, return itself. 11869a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner LegalizedNodes.insert(std::make_pair(To, To)); 11903c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 1208afc48e44ad8868c1d41511db645e2ba1a4b894eChris Lattner 1213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnerpublic: 1223e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1239c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner SelectionDAGLegalize(SelectionDAG &DAG); 1243e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1253e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// getTypeAction - Return how we should legalize values of this type, either 1263e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// it is already legal or we need to expand it into multiple registers of 1273e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// smaller integer type, or we need to promote it to a larger type. 1283e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner LegalizeAction getTypeAction(MVT::ValueType VT) const { 12968a17febc70d9beb5353454e0c6d136ca1e87605Chris Lattner return (LegalizeAction)ValueTypeActions.getTypeAction(VT); 1303e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1313e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1323e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// isTypeLegal - Return true if this type is legal on this target. 1333e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// 1343e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner bool isTypeLegal(MVT::ValueType VT) const { 1353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner return getTypeAction(VT) == Legal; 1363e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1373e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1383e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner void LegalizeDAG(); 1393e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 140456a93afcec7740c45cafa8354317f7b17987a6dChris Lattnerprivate: 1417f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// HandleOp - Legalize, Promote, or Expand the specified operand as 142c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// appropriate for its type. 143c7029805ef35ce9805931067b841e6af11db382eChris Lattner void HandleOp(SDOperand Op); 144c7029805ef35ce9805931067b841e6af11db382eChris Lattner 145c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// LegalizeOp - We know that the specified value has a legal type. 146c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// Recursively ensure that the operands have legal types, then return the 147c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// result. 1483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand LegalizeOp(SDOperand O); 149c7029805ef35ce9805931067b841e6af11db382eChris Lattner 150826695281344e3a4c4d44d73dd155107aafd689bDan Gohman /// UnrollVectorOp - We know that the given vector has a legal type, however 151826695281344e3a4c4d44d73dd155107aafd689bDan Gohman /// the operation it performs is not legal and is an operation that we have 152826695281344e3a4c4d44d73dd155107aafd689bDan Gohman /// no way of lowering. "Unroll" the vector, splitting out the scalars and 153826695281344e3a4c4d44d73dd155107aafd689bDan Gohman /// operating on each element individually. 154826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SDOperand UnrollVectorOp(SDOperand O); 155826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 156c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// PromoteOp - Given an operation that produces a value in an invalid type, 157c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// promote it to compute the value into a larger type. The produced value 158c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// will have the correct bits for the low portion of the register, but no 159c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// guarantee is made about the top bits: it may be zero, sign-extended, or 160c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// garbage. 16103c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDOperand PromoteOp(SDOperand O); 1623e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 163c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// ExpandOp - Expand the specified SDOperand into its two component pieces 164c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// Lo&Hi. Note that the Op MUST be an expanded type. As a result of this, 165c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// the LegalizeNodes map is filled in for any results that are not expanded, 166c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// the ExpandedNodes map is filled in for any results that are expanded, and 167c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// the Lo/Hi values are returned. This applies to integer types and Vector 168c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// types. 169c7029805ef35ce9805931067b841e6af11db382eChris Lattner void ExpandOp(SDOperand O, SDOperand &Lo, SDOperand &Hi); 170c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1717f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// SplitVectorOp - Given an operand of vector type, break it down into 1727f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// two smaller values. 173c7029805ef35ce9805931067b841e6af11db382eChris Lattner void SplitVectorOp(SDOperand O, SDOperand &Lo, SDOperand &Hi); 174c7029805ef35ce9805931067b841e6af11db382eChris Lattner 17589b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman /// ScalarizeVectorOp - Given an operand of single-element vector type 17689b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman /// (e.g. v1f32), convert it into the equivalent operation that returns a 17789b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman /// scalar (e.g. f32) value. 1787f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand ScalarizeVectorOp(SDOperand O); 179c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1804352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// isShuffleLegal - Return true if a vector shuffle is legal with the 1814352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// specified mask and type. Targets can specify exactly which masks they 1824352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// support and the code generator is tasked with not creating illegal masks. 1834352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// 1844352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// Note that this will also return true for shuffles that are promoted to a 1854352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// different type. 1864352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// 1874352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// If this is a legal shuffle, this method returns the (possibly promoted) 1884352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// build_vector Mask. If it's not a legal shuffle, it returns null. 1894352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner SDNode *isShuffleLegal(MVT::ValueType VT, SDOperand Mask) const; 1904352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 191c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner bool LegalizeAllNodesNotLeadingTo(SDNode *N, SDNode *Dest, 19200755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner SmallPtrSet<SDNode*, 32> &NodesLeadingTo); 1936831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 194750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman void LegalizeSetCCOperands(SDOperand &LHS, SDOperand &RHS, SDOperand &CC); 195750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 19647857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer SDOperand ExpandLibCall(const char *Name, SDNode *Node, bool isSigned, 19777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand &Hi); 19877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand ExpandIntToFP(bool isSigned, MVT::ValueType DestTy, 19977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand Source); 200cad063f1a8ecda4fd556a733dc5eaa8a96acb80dChris Lattner 20135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner SDOperand ExpandBIT_CONVERT(MVT::ValueType DestVT, SDOperand SrcOp); 202ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand ExpandBUILD_VECTOR(SDNode *Node); 2034352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner SDOperand ExpandSCALAR_TO_VECTOR(SDNode *Node); 2046269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey SDOperand ExpandLegalINT_TO_FP(bool isSigned, 2056269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey SDOperand LegalOp, 2066269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey MVT::ValueType DestVT); 2075a8441ea3fc145393d6274156bd05c4a006099eaNate Begeman SDOperand PromoteLegalINT_TO_FP(SDOperand LegalOp, MVT::ValueType DestVT, 2085a8441ea3fc145393d6274156bd05c4a006099eaNate Begeman bool isSigned); 2091618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner SDOperand PromoteLegalFP_TO_INT(SDOperand LegalOp, MVT::ValueType DestVT, 2101618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner bool isSigned); 21100b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen 212456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand ExpandBSWAP(SDOperand Op); 213456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand ExpandBitCount(unsigned Opc, SDOperand Op); 214e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner bool ExpandShift(unsigned Opc, SDOperand Op, SDOperand Amt, 215e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner SDOperand &Lo, SDOperand &Hi); 2165b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner void ExpandShiftParts(unsigned NodeOp, SDOperand Op, SDOperand Amt, 2175b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand &Lo, SDOperand &Hi); 218b9fa3bc8f39bf1e8df48b85eae4563032dd20bfcChris Lattner 2197f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand ExpandEXTRACT_SUBVECTOR(SDOperand Op); 2204aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner SDOperand ExpandEXTRACT_VECTOR_ELT(SDOperand Op); 2211597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 2223e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand getIntPtrConstant(uint64_t Val) { 2233e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner return DAG.getConstant(Val, TLI.getPointerTy()); 2243e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 2253e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner}; 2263e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 2273e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 2284352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// isVectorShuffleLegal - Return true if a vector shuffle is legal with the 2294352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// specified mask and type. Targets can specify exactly which masks they 2304352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// support and the code generator is tasked with not creating illegal masks. 2314352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// 2324352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// Note that this will also return true for shuffles that are promoted to a 2334352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// different type. 2344352cc9e217e4482ad53f5a7b92c3543f569eb6eChris LattnerSDNode *SelectionDAGLegalize::isShuffleLegal(MVT::ValueType VT, 2354352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner SDOperand Mask) const { 2364352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner switch (TLI.getOperationAction(ISD::VECTOR_SHUFFLE, VT)) { 2374352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner default: return 0; 2384352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Legal: 2394352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Custom: 2404352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 2414352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Promote: { 2424352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // If this is promoted to a different type, convert the shuffle mask and 2434352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // ask if it is legal in the promoted type! 2444352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner MVT::ValueType NVT = TLI.getTypeToPromoteTo(ISD::VECTOR_SHUFFLE, VT); 2454352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 2464352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // If we changed # elements, change the shuffle mask. 2474352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner unsigned NumEltsGrowth = 2484352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner MVT::getVectorNumElements(NVT) / MVT::getVectorNumElements(VT); 2494352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner assert(NumEltsGrowth && "Cannot promote to vector type with fewer elts!"); 2504352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (NumEltsGrowth > 1) { 2514352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Renumber the elements. 252bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Ops; 2534352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner for (unsigned i = 0, e = Mask.getNumOperands(); i != e; ++i) { 2544352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner SDOperand InOp = Mask.getOperand(i); 2554352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner for (unsigned j = 0; j != NumEltsGrowth; ++j) { 2564352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (InOp.getOpcode() == ISD::UNDEF) 2574352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Ops.push_back(DAG.getNode(ISD::UNDEF, MVT::i32)); 2584352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner else { 2594352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner unsigned InEltNo = cast<ConstantSDNode>(InOp)->getValue(); 2604352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Ops.push_back(DAG.getConstant(InEltNo*NumEltsGrowth+j, MVT::i32)); 2614352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2624352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2634352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 264bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Mask = DAG.getNode(ISD::BUILD_VECTOR, NVT, &Ops[0], Ops.size()); 2654352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2664352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner VT = NVT; 2674352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 2684352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2694352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2704352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner return TLI.isShuffleMaskLegal(Mask, VT) ? Mask.Val : 0; 2714352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner} 2724352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 2739c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris LattnerSelectionDAGLegalize::SelectionDAGLegalize(SelectionDAG &dag) 2749c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner : TLI(dag.getTargetLoweringInfo()), DAG(dag), 2759c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner ValueTypeActions(TLI.getValueTypeActions()) { 2766a648614e88586e85a36ceb5c1d3b84e4f55b458Nate Begeman assert(MVT::LAST_VALUETYPE <= 32 && 2773e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner "Too many value types for ValueTypeActions to hold!"); 2783e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 2793e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 280e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner/// ComputeTopDownOrdering - Compute a top-down ordering of the dag, where Order 281e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner/// contains all of a nodes operands before it contains the node. 282e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattnerstatic void ComputeTopDownOrdering(SelectionDAG &DAG, 283e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner SmallVector<SDNode*, 64> &Order) { 284e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner 285e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner DenseMap<SDNode*, unsigned> Visited; 286e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner std::vector<SDNode*> Worklist; 287e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Worklist.reserve(128); 28832fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 289e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner // Compute ordering from all of the leaves in the graphs, those (like the 290e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner // entry node) that have no operands. 291e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner for (SelectionDAG::allnodes_iterator I = DAG.allnodes_begin(), 292e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner E = DAG.allnodes_end(); I != E; ++I) { 293e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner if (I->getNumOperands() == 0) { 294e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Visited[I] = 0 - 1U; 295e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Worklist.push_back(I); 296e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner } 29732fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner } 29832fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 299e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner while (!Worklist.empty()) { 300e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner SDNode *N = Worklist.back(); 301e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Worklist.pop_back(); 302e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner 303e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner if (++Visited[N] != N->getNumOperands()) 304e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner continue; // Haven't visited all operands yet 305e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner 306e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Order.push_back(N); 307e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner 308e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner // Now that we have N in, add anything that uses it if all of their operands 309e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner // are now done. 310e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner for (SDNode::use_iterator UI = N->use_begin(), E = N->use_end(); 311e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner UI != E; ++UI) 312e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Worklist.push_back(*UI); 313e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner } 314e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner 315e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner assert(Order.size() == Visited.size() && 316e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Order.size() == 317e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner (unsigned)std::distance(DAG.allnodes_begin(), DAG.allnodes_end()) && 318e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner "Error: DAG is cyclic!"); 31932fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner} 32032fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 3211618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner 3223e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnervoid SelectionDAGLegalize::LegalizeDAG() { 3236831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 3246831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = false; 3256831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 326ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // The legalize process is inherently a bottom-up recursive process (users 327ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // legalize their uses before themselves). Given infinite stack space, we 328ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // could just start legalizing on the root and traverse the whole graph. In 329ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // practice however, this causes us to run out of stack space on large basic 33032fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // blocks. To avoid this problem, compute an ordering of the nodes where each 33132fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // node is only legalized after all of its operands are legalized. 3320ed44170752b85c3dd3bbf95459dd2668864f5ecChris Lattner SmallVector<SDNode*, 64> Order; 333e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner ComputeTopDownOrdering(DAG, Order); 334ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner 335c7029805ef35ce9805931067b841e6af11db382eChris Lattner for (unsigned i = 0, e = Order.size(); i != e; ++i) 336c7029805ef35ce9805931067b841e6af11db382eChris Lattner HandleOp(SDOperand(Order[i], 0)); 33732fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 33832fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // Finally, it's possible the root changed. Get the new root. 3393e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand OldRoot = DAG.getRoot(); 34032fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner assert(LegalizedNodes.count(OldRoot) && "Root didn't get legalized?"); 34132fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner DAG.setRoot(LegalizedNodes[OldRoot]); 3423e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 3433e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandedNodes.clear(); 3443e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner LegalizedNodes.clear(); 34571c42a0190300a8903aaea80467b88f15f327ea9Chris Lattner PromotedNodes.clear(); 346c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitNodes.clear(); 3477f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizedNodes.clear(); 3483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 3493e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Remove dead nodes now. 350190a418bf6b49a4ef1c1980229a2f0d516e8a2cdChris Lattner DAG.RemoveDeadNodes(); 3513e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 3523e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 3536831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3546831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// FindCallEndFromCallStart - Given a chained node that is part of a call 3556831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// sequence, find the CALLSEQ_END node that terminates the call sequence. 3566831a815999dde4cf801e2076e66b4943964daf2Chris Lattnerstatic SDNode *FindCallEndFromCallStart(SDNode *Node) { 3576831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->getOpcode() == ISD::CALLSEQ_END) 3586831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Node; 3596831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->use_empty()) 3606831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return 0; // No CallSeqEnd 3616831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3626831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // The chain is usually at the end. 3636831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand TheChain(Node, Node->getNumValues()-1); 3646831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (TheChain.getValueType() != MVT::Other) { 3656831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Sometimes it's at the beginning. 3666831a815999dde4cf801e2076e66b4943964daf2Chris Lattner TheChain = SDOperand(Node, 0); 3676831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (TheChain.getValueType() != MVT::Other) { 3686831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Otherwise, hunt for it. 3696831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 1, e = Node->getNumValues(); i != e; ++i) 3706831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->getValueType(i) == MVT::Other) { 3716831a815999dde4cf801e2076e66b4943964daf2Chris Lattner TheChain = SDOperand(Node, i); 3726831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 3736831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3746831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3756831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Otherwise, we walked into a node without a chain. 3766831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (TheChain.getValueType() != MVT::Other) 3776831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return 0; 3786831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3796831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3806831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3816831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (SDNode::use_iterator UI = Node->use_begin(), 3826831a815999dde4cf801e2076e66b4943964daf2Chris Lattner E = Node->use_end(); UI != E; ++UI) { 3836831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3846831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Make sure to only follow users of our token chain. 3856831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDNode *User = *UI; 3866831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = User->getNumOperands(); i != e; ++i) 3876831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (User->getOperand(i) == TheChain) 3886831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (SDNode *Result = FindCallEndFromCallStart(User)) 3896831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Result; 3906831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3916831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return 0; 3926831a815999dde4cf801e2076e66b4943964daf2Chris Lattner} 3936831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3946831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// FindCallStartFromCallEnd - Given a chained node that is part of a call 3956831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// sequence, find the CALLSEQ_START node that initiates the call sequence. 3966831a815999dde4cf801e2076e66b4943964daf2Chris Lattnerstatic SDNode *FindCallStartFromCallEnd(SDNode *Node) { 3976831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(Node && "Didn't find callseq_start for a call??"); 3986831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->getOpcode() == ISD::CALLSEQ_START) return Node; 3996831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4006831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(Node->getOperand(0).getValueType() == MVT::Other && 4016831a815999dde4cf801e2076e66b4943964daf2Chris Lattner "Node doesn't have a token chain argument!"); 4026831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return FindCallStartFromCallEnd(Node->getOperand(0).Val); 4036831a815999dde4cf801e2076e66b4943964daf2Chris Lattner} 4046831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4056831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// LegalizeAllNodesNotLeadingTo - Recursively walk the uses of N, looking to 4066831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// see if any uses can reach Dest. If no dest operands can get to dest, 4076831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// legalize them, legalize ourself, and return false, otherwise, return true. 408c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// 409c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// Keep track of the nodes we fine that actually do lead to Dest in 410c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// NodesLeadingTo. This avoids retraversing them exponential number of times. 411c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// 412c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattnerbool SelectionDAGLegalize::LegalizeAllNodesNotLeadingTo(SDNode *N, SDNode *Dest, 41300755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner SmallPtrSet<SDNode*, 32> &NodesLeadingTo) { 4146831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (N == Dest) return true; // N certainly leads to Dest :) 4156831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 416c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner // If we've already processed this node and it does lead to Dest, there is no 417c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner // need to reprocess it. 418c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner if (NodesLeadingTo.count(N)) return true; 419c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner 4206831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // If the first result of this node has been already legalized, then it cannot 4216831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // reach N. 4226831a815999dde4cf801e2076e66b4943964daf2Chris Lattner switch (getTypeAction(N->getValueType(0))) { 4236831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Legal: 4246831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (LegalizedNodes.count(SDOperand(N, 0))) return false; 4256831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 4266831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Promote: 4276831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (PromotedNodes.count(SDOperand(N, 0))) return false; 4286831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 4296831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Expand: 4306831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (ExpandedNodes.count(SDOperand(N, 0))) return false; 4316831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 4326831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 4336831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4346831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Okay, this node has not already been legalized. Check and legalize all 4356831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // operands. If none lead to Dest, then we can legalize this node. 4366831a815999dde4cf801e2076e66b4943964daf2Chris Lattner bool OperandsLeadToDest = false; 4376831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i) 4386831a815999dde4cf801e2076e66b4943964daf2Chris Lattner OperandsLeadToDest |= // If an operand leads to Dest, so do we. 439c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner LegalizeAllNodesNotLeadingTo(N->getOperand(i).Val, Dest, NodesLeadingTo); 4406831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 441c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner if (OperandsLeadToDest) { 442c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner NodesLeadingTo.insert(N); 443c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner return true; 444c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner } 4456831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4466831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Okay, this node looks safe, legalize it and return false. 44780edfb3af5ed214c5cd7797b37cb3bb024e98cc6Chris Lattner HandleOp(SDOperand(N, 0)); 4486831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return false; 4496831a815999dde4cf801e2076e66b4943964daf2Chris Lattner} 4506831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4517f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// HandleOp - Legalize, Promote, or Expand the specified operand as 452c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// appropriate for its type. 453c7029805ef35ce9805931067b841e6af11db382eChris Lattnervoid SelectionDAGLegalize::HandleOp(SDOperand Op) { 4547f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::ValueType VT = Op.getValueType(); 4557f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman switch (getTypeAction(VT)) { 456c7029805ef35ce9805931067b841e6af11db382eChris Lattner default: assert(0 && "Bad type action!"); 4577f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case Legal: (void)LegalizeOp(Op); break; 4587f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case Promote: (void)PromoteOp(Op); break; 459c7029805ef35ce9805931067b841e6af11db382eChris Lattner case Expand: 4607f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (!MVT::isVector(VT)) { 4617f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // If this is an illegal scalar, expand it into its two component 4627f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // pieces. 463c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand X, Y; 46409ec1b058331aadb29a348091611d23892b5c492Chris Lattner if (Op.getOpcode() == ISD::TargetConstant) 46509ec1b058331aadb29a348091611d23892b5c492Chris Lattner break; // Allow illegal target nodes. 466c7029805ef35ce9805931067b841e6af11db382eChris Lattner ExpandOp(Op, X, Y); 4677f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else if (MVT::getVectorNumElements(VT) == 1) { 4687f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // If this is an illegal single element vector, convert it to a 4697f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // scalar operation. 4707f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman (void)ScalarizeVectorOp(Op); 471c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else { 4727f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Otherwise, this is an illegal multiple element vector. 4737f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Split it in half and legalize both parts. 4747f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand X, Y; 4757f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SplitVectorOp(Op, X, Y); 476c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 477c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 478c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 479c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 4806831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4819f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng/// ExpandConstantFP - Expands the ConstantFP node to an integer constant or 4829f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng/// a load from the constant pool. 4839f87788040786b1bc6530763e4cf7e105bfb2924Evan Chengstatic SDOperand ExpandConstantFP(ConstantFPSDNode *CFP, bool UseCP, 484279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng SelectionDAG &DAG, TargetLowering &TLI) { 485004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng bool Extend = false; 486004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng 487004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // If a FP immediate is precise when represented as a float and if the 488004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // target can do an extending load from float to double, we put it into 489004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // the constant pool as a float, even if it's is statically typed as a 490004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // double. 491004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng MVT::ValueType VT = CFP->getValueType(0); 492004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng bool isDouble = VT == MVT::f64; 493118cd9dbbad3a47f37dc1b1529ef920e4d5e13f6Dale Johannesen ConstantFP *LLVMC = ConstantFP::get(MVT::getTypeForValueType(VT), 4949e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen CFP->getValueAPF()); 4959f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng if (!UseCP) { 4969e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen if (VT!=MVT::f64 && VT!=MVT::f32) 4979e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen assert(0 && "Invalid type expansion"); 4989d5f45607793052bf5b4436d1b43013fab9999acDale Johannesen return DAG.getConstant(LLVMC->getValueAPF().convertToAPInt().getZExtValue(), 4999d5f45607793052bf5b4436d1b43013fab9999acDale Johannesen isDouble ? MVT::i64 : MVT::i32); 500279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng } 501279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng 502f04afdbb48568ef09f11fd10ac03426101f2dbf8Dale Johannesen if (isDouble && CFP->isValueValidForType(MVT::f32, CFP->getValueAPF()) && 503004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // Only do this if the target has a native EXTLOAD instruction from f32. 5049e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen // Do not try to be clever about long doubles (so far) 505004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng TLI.isLoadXLegal(ISD::EXTLOAD, MVT::f32)) { 506004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng LLVMC = cast<ConstantFP>(ConstantExpr::getFPTrunc(LLVMC,Type::FloatTy)); 507004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng VT = MVT::f32; 508004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng Extend = true; 509004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 510004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng 511004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng SDOperand CPIdx = DAG.getConstantPool(LLVMC, TLI.getPointerTy()); 512004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng if (Extend) { 513004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng return DAG.getExtLoad(ISD::EXTLOAD, MVT::f64, DAG.getEntryNode(), 514004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng CPIdx, NULL, 0, MVT::f32); 515004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } else { 516004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng return DAG.getLoad(VT, DAG.getEntryNode(), CPIdx, NULL, 0); 517004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 518004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng} 519004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng 5206831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 521912095becac923ff614d7b07728eb345ada67765Evan Cheng/// ExpandFCOPYSIGNToBitwiseOps - Expands fcopysign to a series of bitwise 522912095becac923ff614d7b07728eb345ada67765Evan Cheng/// operations. 523912095becac923ff614d7b07728eb345ada67765Evan Chengstatic 524912095becac923ff614d7b07728eb345ada67765Evan ChengSDOperand ExpandFCOPYSIGNToBitwiseOps(SDNode *Node, MVT::ValueType NVT, 525912095becac923ff614d7b07728eb345ada67765Evan Cheng SelectionDAG &DAG, TargetLowering &TLI) { 526068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng MVT::ValueType VT = Node->getValueType(0); 527912095becac923ff614d7b07728eb345ada67765Evan Cheng MVT::ValueType SrcVT = Node->getOperand(1).getValueType(); 5287f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert((SrcVT == MVT::f32 || SrcVT == MVT::f64) && 5297f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman "fcopysign expansion only supported for f32 and f64"); 530912095becac923ff614d7b07728eb345ada67765Evan Cheng MVT::ValueType SrcNVT = (SrcVT == MVT::f64) ? MVT::i64 : MVT::i32; 531068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng 532912095becac923ff614d7b07728eb345ada67765Evan Cheng // First get the sign bit of second operand. 533068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng SDOperand Mask1 = (SrcVT == MVT::f64) 534912095becac923ff614d7b07728eb345ada67765Evan Cheng ? DAG.getConstantFP(BitsToDouble(1ULL << 63), SrcVT) 535912095becac923ff614d7b07728eb345ada67765Evan Cheng : DAG.getConstantFP(BitsToFloat(1U << 31), SrcVT); 536068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng Mask1 = DAG.getNode(ISD::BIT_CONVERT, SrcNVT, Mask1); 537912095becac923ff614d7b07728eb345ada67765Evan Cheng SDOperand SignBit= DAG.getNode(ISD::BIT_CONVERT, SrcNVT, Node->getOperand(1)); 538068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng SignBit = DAG.getNode(ISD::AND, SrcNVT, SignBit, Mask1); 539912095becac923ff614d7b07728eb345ada67765Evan Cheng // Shift right or sign-extend it if the two operands have different types. 540912095becac923ff614d7b07728eb345ada67765Evan Cheng int SizeDiff = MVT::getSizeInBits(SrcNVT) - MVT::getSizeInBits(NVT); 541912095becac923ff614d7b07728eb345ada67765Evan Cheng if (SizeDiff > 0) { 542912095becac923ff614d7b07728eb345ada67765Evan Cheng SignBit = DAG.getNode(ISD::SRL, SrcNVT, SignBit, 543912095becac923ff614d7b07728eb345ada67765Evan Cheng DAG.getConstant(SizeDiff, TLI.getShiftAmountTy())); 544912095becac923ff614d7b07728eb345ada67765Evan Cheng SignBit = DAG.getNode(ISD::TRUNCATE, NVT, SignBit); 545912095becac923ff614d7b07728eb345ada67765Evan Cheng } else if (SizeDiff < 0) 546912095becac923ff614d7b07728eb345ada67765Evan Cheng SignBit = DAG.getNode(ISD::SIGN_EXTEND, NVT, SignBit); 547068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng 548068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng // Clear the sign bit of first operand. 549068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng SDOperand Mask2 = (VT == MVT::f64) 550068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng ? DAG.getConstantFP(BitsToDouble(~(1ULL << 63)), VT) 551068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng : DAG.getConstantFP(BitsToFloat(~(1U << 31)), VT); 552068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng Mask2 = DAG.getNode(ISD::BIT_CONVERT, NVT, Mask2); 553912095becac923ff614d7b07728eb345ada67765Evan Cheng SDOperand Result = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 554068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng Result = DAG.getNode(ISD::AND, NVT, Result, Mask2); 555068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng 556068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng // Or the value with the sign bit. 557912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = DAG.getNode(ISD::OR, NVT, Result, SignBit); 558912095becac923ff614d7b07728eb345ada67765Evan Cheng return Result; 559912095becac923ff614d7b07728eb345ada67765Evan Cheng} 560912095becac923ff614d7b07728eb345ada67765Evan Cheng 561f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio/// ExpandUnalignedStore - Expands an unaligned store to 2 half-size stores. 562f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venanciostatic 563f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos VenancioSDOperand ExpandUnalignedStore(StoreSDNode *ST, SelectionDAG &DAG, 564f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio TargetLowering &TLI) { 565f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Chain = ST->getChain(); 566f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Ptr = ST->getBasePtr(); 567f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Val = ST->getValue(); 568f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio MVT::ValueType VT = Val.getValueType(); 569907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen int Alignment = ST->getAlignment(); 570907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen int SVOffset = ST->getSrcValueOffset(); 571907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen if (MVT::isFloatingPoint(ST->getStoredVT())) { 572907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen // Expand to a bitconvert of the value to the integer type of the 573907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen // same size, then a (misaligned) int store. 574907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen MVT::ValueType intVT; 575907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen if (VT==MVT::f64) 576907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen intVT = MVT::i64; 577907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen else if (VT==MVT::f32) 578907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen intVT = MVT::i32; 579907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen else 580907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen assert(0 && "Unaligned load of unsupported floating point type"); 581907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen 582907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen SDOperand Result = DAG.getNode(ISD::BIT_CONVERT, intVT, Val); 583907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen return DAG.getStore(Chain, Result, Ptr, ST->getSrcValue(), 584907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen SVOffset, ST->isVolatile(), Alignment); 585907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen } 586907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen assert(MVT::isInteger(ST->getStoredVT()) && 587907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen "Unaligned store of unknown type."); 588f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // Get the half-size VT 589f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio MVT::ValueType NewStoredVT = ST->getStoredVT() - 1; 590f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio int NumBits = MVT::getSizeInBits(NewStoredVT); 591f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio int IncrementSize = NumBits / 8; 592f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 593f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // Divide the stored value in two parts. 594f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand ShiftAmount = DAG.getConstant(NumBits, TLI.getShiftAmountTy()); 595f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Lo = Val; 596f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Hi = DAG.getNode(ISD::SRL, VT, Val, ShiftAmount); 597f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 598f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // Store the two parts 599f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Store1, Store2; 600f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Store1 = DAG.getTruncStore(Chain, TLI.isLittleEndian()?Lo:Hi, Ptr, 601f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio ST->getSrcValue(), SVOffset, NewStoredVT, 602f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio ST->isVolatile(), Alignment); 603f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 604f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio DAG.getConstant(IncrementSize, TLI.getPointerTy())); 605f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Store2 = DAG.getTruncStore(Chain, TLI.isLittleEndian()?Hi:Lo, Ptr, 606f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio ST->getSrcValue(), SVOffset + IncrementSize, 607f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio NewStoredVT, ST->isVolatile(), Alignment); 608f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 609f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio return DAG.getNode(ISD::TokenFactor, MVT::Other, Store1, Store2); 610f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio} 611f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 612f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio/// ExpandUnalignedLoad - Expands an unaligned load to 2 half-size loads. 613f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venanciostatic 614f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos VenancioSDOperand ExpandUnalignedLoad(LoadSDNode *LD, SelectionDAG &DAG, 615f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio TargetLowering &TLI) { 616f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio int SVOffset = LD->getSrcValueOffset(); 617f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Chain = LD->getChain(); 618f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Ptr = LD->getBasePtr(); 619f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio MVT::ValueType VT = LD->getValueType(0); 620907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen MVT::ValueType LoadedVT = LD->getLoadedVT(); 621907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen if (MVT::isFloatingPoint(VT)) { 622907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen // Expand to a (misaligned) integer load of the same size, 623907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen // then bitconvert to floating point. 624907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen MVT::ValueType intVT; 625907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen if (LoadedVT==MVT::f64) 626907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen intVT = MVT::i64; 627907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen else if (LoadedVT==MVT::f32) 628907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen intVT = MVT::i32; 629907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen else 630907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen assert(0 && "Unaligned load of unsupported floating point type"); 631907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen 632907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen SDOperand newLoad = DAG.getLoad(intVT, Chain, Ptr, LD->getSrcValue(), 633907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen SVOffset, LD->isVolatile(), 634907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen LD->getAlignment()); 635907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen SDOperand Result = DAG.getNode(ISD::BIT_CONVERT, LoadedVT, newLoad); 636907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen if (LoadedVT != VT) 637907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen Result = DAG.getNode(ISD::FP_EXTEND, VT, Result); 638907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen 639907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen SDOperand Ops[] = { Result, Chain }; 640907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen return DAG.getNode(ISD::MERGE_VALUES, DAG.getVTList(VT, MVT::Other), 641907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen Ops, 2); 642907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen } 643907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen assert(MVT::isInteger(LoadedVT) && "Unaligned load of unsupported type."); 644907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen MVT::ValueType NewLoadedVT = LoadedVT - 1; 645f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio int NumBits = MVT::getSizeInBits(NewLoadedVT); 646f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio int Alignment = LD->getAlignment(); 647f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio int IncrementSize = NumBits / 8; 648f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio ISD::LoadExtType HiExtType = LD->getExtensionType(); 649f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 650f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // If the original load is NON_EXTLOAD, the hi part load must be ZEXTLOAD. 651f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (HiExtType == ISD::NON_EXTLOAD) 652f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio HiExtType = ISD::ZEXTLOAD; 653f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 654f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // Load the value in two parts 655f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Lo, Hi; 656f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (TLI.isLittleEndian()) { 657f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Lo = DAG.getExtLoad(ISD::ZEXTLOAD, VT, Chain, Ptr, LD->getSrcValue(), 658f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SVOffset, NewLoadedVT, LD->isVolatile(), Alignment); 659f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 660f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio DAG.getConstant(IncrementSize, TLI.getPointerTy())); 661f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Hi = DAG.getExtLoad(HiExtType, VT, Chain, Ptr, LD->getSrcValue(), 662f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SVOffset + IncrementSize, NewLoadedVT, LD->isVolatile(), 663f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Alignment); 664f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } else { 665f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Hi = DAG.getExtLoad(HiExtType, VT, Chain, Ptr, LD->getSrcValue(), SVOffset, 666f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio NewLoadedVT,LD->isVolatile(), Alignment); 667f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 668f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio DAG.getConstant(IncrementSize, TLI.getPointerTy())); 669f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Lo = DAG.getExtLoad(ISD::ZEXTLOAD, VT, Chain, Ptr, LD->getSrcValue(), 670f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SVOffset + IncrementSize, NewLoadedVT, LD->isVolatile(), 671f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Alignment); 672f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 673f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 674f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // aggregate the two parts 675f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand ShiftAmount = DAG.getConstant(NumBits, TLI.getShiftAmountTy()); 676f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Result = DAG.getNode(ISD::SHL, VT, Hi, ShiftAmount); 677f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Result = DAG.getNode(ISD::OR, VT, Result, Lo); 678f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 679f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand TF = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 680f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Hi.getValue(1)); 681f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 682f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Ops[] = { Result, TF }; 683f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio return DAG.getNode(ISD::MERGE_VALUES, DAG.getVTList(VT, MVT::Other), Ops, 2); 684f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio} 685912095becac923ff614d7b07728eb345ada67765Evan Cheng 686826695281344e3a4c4d44d73dd155107aafd689bDan Gohman/// UnrollVectorOp - We know that the given vector has a legal type, however 687826695281344e3a4c4d44d73dd155107aafd689bDan Gohman/// the operation it performs is not legal and is an operation that we have 688826695281344e3a4c4d44d73dd155107aafd689bDan Gohman/// no way of lowering. "Unroll" the vector, splitting out the scalars and 689826695281344e3a4c4d44d73dd155107aafd689bDan Gohman/// operating on each element individually. 690826695281344e3a4c4d44d73dd155107aafd689bDan GohmanSDOperand SelectionDAGLegalize::UnrollVectorOp(SDOperand Op) { 691826695281344e3a4c4d44d73dd155107aafd689bDan Gohman MVT::ValueType VT = Op.getValueType(); 692826695281344e3a4c4d44d73dd155107aafd689bDan Gohman assert(isTypeLegal(VT) && 693826695281344e3a4c4d44d73dd155107aafd689bDan Gohman "Caller should expand or promote operands that are not legal!"); 694826695281344e3a4c4d44d73dd155107aafd689bDan Gohman assert(Op.Val->getNumValues() == 1 && 695826695281344e3a4c4d44d73dd155107aafd689bDan Gohman "Can't unroll a vector with multiple results!"); 696826695281344e3a4c4d44d73dd155107aafd689bDan Gohman unsigned NE = MVT::getVectorNumElements(VT); 697826695281344e3a4c4d44d73dd155107aafd689bDan Gohman MVT::ValueType EltVT = MVT::getVectorElementType(VT); 698826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 699826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SmallVector<SDOperand, 8> Scalars; 700826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SmallVector<SDOperand, 4> Operands(Op.getNumOperands()); 701826695281344e3a4c4d44d73dd155107aafd689bDan Gohman for (unsigned i = 0; i != NE; ++i) { 702826695281344e3a4c4d44d73dd155107aafd689bDan Gohman for (unsigned j = 0; j != Op.getNumOperands(); ++j) { 703826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SDOperand Operand = Op.getOperand(j); 704826695281344e3a4c4d44d73dd155107aafd689bDan Gohman MVT::ValueType OperandVT = Operand.getValueType(); 705826695281344e3a4c4d44d73dd155107aafd689bDan Gohman if (MVT::isVector(OperandVT)) { 706826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // A vector operand; extract a single element. 707826695281344e3a4c4d44d73dd155107aafd689bDan Gohman MVT::ValueType OperandEltVT = MVT::getVectorElementType(OperandVT); 708826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Operands[j] = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, 709826695281344e3a4c4d44d73dd155107aafd689bDan Gohman OperandEltVT, 710826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Operand, 711826695281344e3a4c4d44d73dd155107aafd689bDan Gohman DAG.getConstant(i, MVT::i32)); 712826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } else { 713826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // A scalar operand; just use it as is. 714826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Operands[j] = Operand; 715826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 716826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 717826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Scalars.push_back(DAG.getNode(Op.getOpcode(), EltVT, 718826695281344e3a4c4d44d73dd155107aafd689bDan Gohman &Operands[0], Operands.size())); 719826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 720826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 721826695281344e3a4c4d44d73dd155107aafd689bDan Gohman return DAG.getNode(ISD::BUILD_VECTOR, VT, &Scalars[0], Scalars.size()); 722826695281344e3a4c4d44d73dd155107aafd689bDan Gohman} 723826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 724a346615d11f0a560c6e7280c1e614301d9f93051Dan Gohman/// LegalizeOp - We know that the specified value has a legal type, and 725a346615d11f0a560c6e7280c1e614301d9f93051Dan Gohman/// that its operands are legal. Now ensure that the operation itself 726a346615d11f0a560c6e7280c1e614301d9f93051Dan Gohman/// is legal, recursively ensuring that the operands' operations remain 727a346615d11f0a560c6e7280c1e614301d9f93051Dan Gohman/// legal. 7283e928bbd6153eb08641cbd0ad7d8487378a8b12aChris LattnerSDOperand SelectionDAGLegalize::LegalizeOp(SDOperand Op) { 72909ec1b058331aadb29a348091611d23892b5c492Chris Lattner if (Op.getOpcode() == ISD::TargetConstant) // Allow illegal target nodes. 73009ec1b058331aadb29a348091611d23892b5c492Chris Lattner return Op; 73109ec1b058331aadb29a348091611d23892b5c492Chris Lattner 732c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner assert(isTypeLegal(Op.getValueType()) && 733e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner "Caller should expand or promote operands that are not legal!"); 73445982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner SDNode *Node = Op.Val; 735e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner 7363e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // If this operation defines any values that cannot be represented in a 737e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner // register on this target, make sure to expand or promote them. 73845982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner if (Node->getNumValues() > 1) { 73945982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 740c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (getTypeAction(Node->getValueType(i)) != Legal) { 741c7029805ef35ce9805931067b841e6af11db382eChris Lattner HandleOp(Op.getValue(i)); 7423e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(LegalizedNodes.count(Op) && 743c7029805ef35ce9805931067b841e6af11db382eChris Lattner "Handling didn't add legal operands!"); 74403c8546ec57523970874917854a2fb77b1ff598eChris Lattner return LegalizedNodes[Op]; 7453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 7463e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 7473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 74845982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // Note that LegalizeOp may be reentered even from single-use nodes, which 74945982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // means that we always must cache transformed nodes. 750718071c476014cb0aaff9c7d018120d5a8930217Chris Lattner DenseMap<SDOperand, SDOperand>::iterator I = LegalizedNodes.find(Op); 751e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner if (I != LegalizedNodes.end()) return I->second; 7523e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 7539373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman SDOperand Tmp1, Tmp2, Tmp3, Tmp4; 7543e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand Result = Op; 755456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner bool isCustom = false; 756456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 7573e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getOpcode()) { 758948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::FrameIndex: 759948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::EntryToken: 760948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::Register: 761948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::BasicBlock: 762948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetFrameIndex: 76337efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::TargetJumpTable: 764948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetConstant: 7653181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner case ISD::TargetConstantFP: 766948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetConstantPool: 767948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetGlobalAddress: 768b3a0417cad8b625acc3033bd5e24afb9ffd0b084Lauro Ramos Venancio case ISD::TargetGlobalTLSAddress: 769948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetExternalSymbol: 770948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::VALUETYPE: 771948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::SRCVALUE: 772948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::STRING: 773948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::CONDCODE: 774948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner // Primitives must all be legal. 775a7c97a7f5b82778ca5abfc3791c6b7f96b82a5faDuncan Sands assert(TLI.isOperationLegal(Node->getOpcode(), Node->getValueType(0)) && 776948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner "This must be legal!"); 777948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner break; 7783e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner default: 779d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner if (Node->getOpcode() >= ISD::BUILTIN_OP_END) { 780d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // If this is a target node, legalize it by legalizing the operands then 781d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // passing it through. 782f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 783c5d7d7c715f7b7a4eeea1ceaafefc3d1d6df2addChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 784d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 785c5d7d7c715f7b7a4eeea1ceaafefc3d1d6df2addChris Lattner 786f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result.getValue(0), &Ops[0], Ops.size()); 787d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner 788d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 789d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner AddLegalizedOperand(Op.getValue(i), Result.getValue(i)); 790d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner return Result.getValue(Op.ResNo); 791d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner } 792d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // Otherwise this is an unhandled builtin node. splat. 793e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 79439833585556a69de12053ca1e104fe7edfd86cbdDan Gohman cerr << "NODE: "; Node->dump(&DAG); cerr << "\n"; 795e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 7963e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(0 && "Do not know how to legalize this operator!"); 7973e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner abort(); 7980d3b67809ccab229a03db8c1bede852fb89eb081Lauro Ramos Venancio case ISD::GLOBAL_OFFSET_TABLE: 7993e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::GlobalAddress: 800b3a0417cad8b625acc3033bd5e24afb9ffd0b084Lauro Ramos Venancio case ISD::GlobalTLSAddress: 80103c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::ExternalSymbol: 80237efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::ConstantPool: 80337efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::JumpTable: // Nothing to do. 8040c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 8050c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner default: assert(0 && "This action is not supported yet!"); 806948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case TargetLowering::Custom: 807948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner Tmp1 = TLI.LowerOperation(Op, DAG); 808948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner if (Tmp1.Val) Result = Tmp1; 809948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner // FALLTHROUGH if the target doesn't want to lower this op after all. 8100c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner case TargetLowering::Legal: 8110c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner break; 8120c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner } 8133e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 814bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman case ISD::FRAMEADDR: 815bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman case ISD::RETURNADDR: 816bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman // The only option for these nodes is to custom lower them. If the target 817bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman // does not custom lower them, then return zero. 818bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman Tmp1 = TLI.LowerOperation(Op, DAG); 819bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman if (Tmp1.Val) 820bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman Result = Tmp1; 821bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman else 822bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman Result = DAG.getConstant(0, TLI.getPointerTy()); 823bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman break; 824055c5449a4046a5e1a5210d2f91aee4e3901cccfAnton Korobeynikov case ISD::FRAME_TO_ARGS_OFFSET: { 825066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov MVT::ValueType VT = Node->getValueType(0); 826066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 827066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov default: assert(0 && "This action is not supported yet!"); 828066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov case TargetLowering::Custom: 829066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov Result = TLI.LowerOperation(Op, DAG); 830066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov if (Result.Val) break; 831066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov // Fall Thru 832066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov case TargetLowering::Legal: 833066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov Result = DAG.getConstant(0, VT); 834066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov break; 835066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov } 836055c5449a4046a5e1a5210d2f91aee4e3901cccfAnton Korobeynikov } 837066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov break; 8382bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey case ISD::EXCEPTIONADDR: { 8392bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); 8402bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey MVT::ValueType VT = Node->getValueType(0); 8412bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 8422bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey default: assert(0 && "This action is not supported yet!"); 8432bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey case TargetLowering::Expand: { 8448782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey unsigned Reg = TLI.getExceptionAddressRegister(); 8452bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey Result = DAG.getCopyFromReg(Tmp1, Reg, VT).getValue(Op.ResNo); 8462bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey } 8472bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey break; 8482bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey case TargetLowering::Custom: 8492bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey Result = TLI.LowerOperation(Op, DAG); 8502bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey if (Result.Val) break; 8512bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey // Fall Thru 852eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner case TargetLowering::Legal: { 853eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner SDOperand Ops[] = { DAG.getConstant(0, VT), Tmp1 }; 854eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner Result = DAG.getNode(ISD::MERGE_VALUES, DAG.getVTList(VT, MVT::Other), 855eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner Ops, 2).getValue(Op.ResNo); 8568782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey break; 8578782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey } 8588782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey } 859eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner } 8608782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey break; 8618782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey case ISD::EHSELECTION: { 8628782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); 8638782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey Tmp2 = LegalizeOp(Node->getOperand(1)); 8648782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey MVT::ValueType VT = Node->getValueType(0); 8658782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 8668782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey default: assert(0 && "This action is not supported yet!"); 8678782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey case TargetLowering::Expand: { 8688782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey unsigned Reg = TLI.getExceptionSelectorRegister(); 8698782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey Result = DAG.getCopyFromReg(Tmp2, Reg, VT).getValue(Op.ResNo); 8708782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey } 8718782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey break; 8728782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey case TargetLowering::Custom: 8738782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey Result = TLI.LowerOperation(Op, DAG); 8748782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey if (Result.Val) break; 8758782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey // Fall Thru 876eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner case TargetLowering::Legal: { 877eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner SDOperand Ops[] = { DAG.getConstant(0, VT), Tmp2 }; 878eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner Result = DAG.getNode(ISD::MERGE_VALUES, DAG.getVTList(VT, MVT::Other), 879eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner Ops, 2).getValue(Op.ResNo); 8802bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey break; 8812bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey } 8822bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey } 883eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner } 8842bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey break; 8856d4b711e7f2e27d94d3c49dc9e7575dbe0f242e0Nick Lewycky case ISD::EH_RETURN: { 8862365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov MVT::ValueType VT = Node->getValueType(0); 8872365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov // The only "good" option for this node is to custom lower it. 8882365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 8892365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov default: assert(0 && "This action is not supported at all!"); 8902365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov case TargetLowering::Custom: 8912365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov Result = TLI.LowerOperation(Op, DAG); 8922365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov if (Result.Val) break; 8932365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov // Fall Thru 8942365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov case TargetLowering::Legal: 8952365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov // Target does not know, how to lower this, lower to noop 8962365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov Result = LegalizeOp(Node->getOperand(0)); 8972365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov break; 8982365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov } 8996d4b711e7f2e27d94d3c49dc9e7575dbe0f242e0Nick Lewycky } 9002365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov break; 90108951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner case ISD::AssertSext: 90208951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner case ISD::AssertZext: 90308951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 904c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 90508951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner break; 906308575be66ec3870d27b19df044fda18448feb41Chris Lattner case ISD::MERGE_VALUES: 907c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner // Legalize eliminates MERGE_VALUES nodes. 908456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = Node->getOperand(Op.ResNo); 909456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 91069a52155d2eff066b49dbac385113002fd9dba14Chris Lattner case ISD::CopyFromReg: 91169a52155d2eff066b49dbac385113002fd9dba14Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 9127310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner Result = Op.getValue(0); 913f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner if (Node->getNumValues() == 2) { 914c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 9157310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } else { 916f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner assert(Node->getNumValues() == 3 && "Invalid copyfromreg!"); 917c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Node->getNumOperands() == 3) { 918f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(2)); 919c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1),Tmp2); 920c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else { 921c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 922c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } 9237310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner AddLegalizedOperand(Op.getValue(2), Result.getValue(2)); 9247310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 92513c184de29c09294ed63b01ac43e1b46c049278eChris Lattner // Since CopyFromReg produces two values, make sure to remember that we 92613c184de29c09294ed63b01ac43e1b46c049278eChris Lattner // legalized both of them. 92713c184de29c09294ed63b01ac43e1b46c049278eChris Lattner AddLegalizedOperand(Op.getValue(0), Result); 92813c184de29c09294ed63b01ac43e1b46c049278eChris Lattner AddLegalizedOperand(Op.getValue(1), Result.getValue(1)); 92913c184de29c09294ed63b01ac43e1b46c049278eChris Lattner return Result.getValue(Op.ResNo); 930fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: { 931fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman MVT::ValueType VT = Op.getValueType(); 932fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman switch (TLI.getOperationAction(ISD::UNDEF, VT)) { 933ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman default: assert(0 && "This action is not supported yet!"); 934ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman case TargetLowering::Expand: 935fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman if (MVT::isInteger(VT)) 936fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Result = DAG.getConstant(0, VT); 937fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman else if (MVT::isFloatingPoint(VT)) 938f41db2136fe50e1a92aabfcb3ba1ec1f70f5f0d5Dale Johannesen Result = DAG.getConstantFP(APFloat(APInt(MVT::getSizeInBits(VT), 0)), 939f41db2136fe50e1a92aabfcb3ba1ec1f70f5f0d5Dale Johannesen VT); 940fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman else 941fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman assert(0 && "Unknown value type!"); 942fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 943ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman case TargetLowering::Legal: 944fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 945fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman } 946fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 947fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman } 948d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner 94948b61a729df6576c8833a83893d4086bddff69a5Chris Lattner case ISD::INTRINSIC_W_CHAIN: 95048b61a729df6576c8833a83893d4086bddff69a5Chris Lattner case ISD::INTRINSIC_WO_CHAIN: 95148b61a729df6576c8833a83893d4086bddff69a5Chris Lattner case ISD::INTRINSIC_VOID: { 952f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 953d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 954d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 955f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 95610d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner 95710d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner // Allow the target to custom lower its intrinsics if it wants to. 95848b61a729df6576c8833a83893d4086bddff69a5Chris Lattner if (TLI.getOperationAction(Node->getOpcode(), MVT::Other) == 95910d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner TargetLowering::Custom) { 96010d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 96110d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner if (Tmp3.Val) Result = Tmp3; 96213fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner } 96313fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner 96413fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner if (Result.Val->getNumValues() == 1) break; 96513fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner 96613fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner // Must have return value and chain result. 96713fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner assert(Result.Val->getNumValues() == 2 && 96813fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner "Cannot return more than two values!"); 96913fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner 97013fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner // Since loads produce two values, make sure to remember that we 97113fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner // legalized both of them. 97213fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 97313fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 97413fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner return Result.getValue(Op.ResNo); 975d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner } 97636ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 97736ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner case ISD::LOCATION: 97836ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner assert(Node->getNumOperands() == 5 && "Invalid LOCATION node!"); 97936ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the input chain. 98036ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 98136ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner switch (TLI.getOperationAction(ISD::LOCATION, MVT::Other)) { 98236ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner case TargetLowering::Promote: 98336ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner default: assert(0 && "This action is not supported yet!"); 984f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey case TargetLowering::Expand: { 98544c3b9fdd416c79f4b67cde1aecfced5921efd81Jim Laskey MachineModuleInfo *MMI = DAG.getMachineModuleInfo(); 986abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey bool useDEBUG_LOC = TLI.isOperationLegal(ISD::DEBUG_LOC, MVT::Other); 9871ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey bool useLABEL = TLI.isOperationLegal(ISD::LABEL, MVT::Other); 988abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 98944c3b9fdd416c79f4b67cde1aecfced5921efd81Jim Laskey if (MMI && (useDEBUG_LOC || useLABEL)) { 990abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey const std::string &FName = 991e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey cast<StringSDNode>(Node->getOperand(3))->getValue(); 992abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey const std::string &DirName = 993e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey cast<StringSDNode>(Node->getOperand(4))->getValue(); 99444c3b9fdd416c79f4b67cde1aecfced5921efd81Jim Laskey unsigned SrcFile = MMI->RecordSource(DirName, FName); 995abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 996bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Ops; 997abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(Tmp1); // chain 998abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey SDOperand LineOp = Node->getOperand(1); 999abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey SDOperand ColOp = Node->getOperand(2); 1000abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 1001abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey if (useDEBUG_LOC) { 1002abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(LineOp); // line # 1003abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(ColOp); // col # 1004abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(DAG.getConstant(SrcFile, MVT::i32)); // source file id 1005bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Result = DAG.getNode(ISD::DEBUG_LOC, MVT::Other, &Ops[0], Ops.size()); 1006abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } else { 1007d0e58e36a9857c45ecdc910ec8db04c21e143db5Jim Laskey unsigned Line = cast<ConstantSDNode>(LineOp)->getValue(); 1008d0e58e36a9857c45ecdc910ec8db04c21e143db5Jim Laskey unsigned Col = cast<ConstantSDNode>(ColOp)->getValue(); 100944c3b9fdd416c79f4b67cde1aecfced5921efd81Jim Laskey unsigned ID = MMI->RecordLabel(Line, Col, SrcFile); 1010abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(DAG.getConstant(ID, MVT::i32)); 10111ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey Result = DAG.getNode(ISD::LABEL, MVT::Other,&Ops[0],Ops.size()); 1012abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } 1013e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey } else { 1014e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey Result = Tmp1; // chain 1015e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey } 101636ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 1017e773673d8e0094bbff2f9ab2f2da9ecb5c4d0909Chris Lattner } 101836ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner case TargetLowering::Legal: 10199ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner if (Tmp1 != Node->getOperand(0) || 10209ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner getTypeAction(Node->getOperand(1).getValueType()) == Promote) { 1021f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 102236ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Ops.push_back(Tmp1); 10239ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner if (getTypeAction(Node->getOperand(1).getValueType()) == Legal) { 10249ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(Node->getOperand(1)); // line # must be legal. 10259ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(Node->getOperand(2)); // col # must be legal. 10269ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner } else { 10279ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner // Otherwise promote them. 10289ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(PromoteOp(Node->getOperand(1))); 10299ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(PromoteOp(Node->getOperand(2))); 10309ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner } 103136ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Ops.push_back(Node->getOperand(3)); // filename must be legal. 103236ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Ops.push_back(Node->getOperand(4)); // working dir # must be legal. 1033f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 103436ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner } 103536ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 103636ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner } 103736ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 1038f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey 1039f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey case ISD::DEBUG_LOC: 1040abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey assert(Node->getNumOperands() == 4 && "Invalid DEBUG_LOC node!"); 1041f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey switch (TLI.getOperationAction(ISD::DEBUG_LOC, MVT::Other)) { 1042f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey default: assert(0 && "This action is not supported yet!"); 1043abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey case TargetLowering::Legal: 1044abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1045abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the line #. 1046abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the col #. 1047abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp4 = LegalizeOp(Node->getOperand(3)); // Legalize the source file id. 1048c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4); 1049abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey break; 1050abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } 1051abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey break; 1052abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 10531ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey case ISD::LABEL: 10541ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey assert(Node->getNumOperands() == 2 && "Invalid LABEL node!"); 10551ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey switch (TLI.getOperationAction(ISD::LABEL, MVT::Other)) { 1056abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey default: assert(0 && "This action is not supported yet!"); 1057abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey case TargetLowering::Legal: 1058abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1059abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the label id. 1060c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 1061f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey break; 1062a9569f10de686119ff34b89e102b5a3cbafdf195Chris Lattner case TargetLowering::Expand: 1063a9569f10de686119ff34b89e102b5a3cbafdf195Chris Lattner Result = LegalizeOp(Node->getOperand(0)); 1064a9569f10de686119ff34b89e102b5a3cbafdf195Chris Lattner break; 1065f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey } 1066551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman break; 106736ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 1068c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel case ISD::Constant: { 1069c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel ConstantSDNode *CN = cast<ConstantSDNode>(Node); 1070c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel unsigned opAction = 1071c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel TLI.getOperationAction(ISD::Constant, CN->getValueType(0)); 1072c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel 10733e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // We know we don't need to expand constants here, constants only have one 10743e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // value and we check that it is fine above. 10753e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1076c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel if (opAction == TargetLowering::Custom) { 1077c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel Tmp1 = TLI.LowerOperation(Result, DAG); 1078c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel if (Tmp1.Val) 1079c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel Result = Tmp1; 1080c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel } 10813e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 1082c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel } 10833e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ConstantFP: { 10843e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Spill FP immediates to the constant pool if the target cannot directly 10853e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // codegen them. Targets often have some immediate values that can be 10863e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // efficiently generated into an FP register without a load. We explicitly 10873e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // leave these constants as ConstantFP nodes for the target to deal with. 10883e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ConstantFPSDNode *CFP = cast<ConstantFPSDNode>(Node); 10893e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 10903e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Check to see if this FP immediate is already legal. 10913e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner bool isLegal = false; 10923e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner for (TargetLowering::legal_fpimm_iterator I = TLI.legal_fpimm_begin(), 10933e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner E = TLI.legal_fpimm_end(); I != E; ++I) 10943e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner if (CFP->isExactlyValue(*I)) { 10953e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner isLegal = true; 10963e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 10973e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 10983e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 10993181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner // If this is a legal constant, turn it into a TargetConstantFP node. 11003181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner if (isLegal) { 1101f04afdbb48568ef09f11fd10ac03426101f2dbf8Dale Johannesen Result = DAG.getTargetConstantFP(CFP->getValueAPF(), 1102f04afdbb48568ef09f11fd10ac03426101f2dbf8Dale Johannesen CFP->getValueType(0)); 11033181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner break; 11043181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner } 11053181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner 11063181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner switch (TLI.getOperationAction(ISD::ConstantFP, CFP->getValueType(0))) { 11073181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner default: assert(0 && "This action is not supported yet!"); 11083181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner case TargetLowering::Custom: 11093181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 11103181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner if (Tmp3.Val) { 11113181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner Result = Tmp3; 11123181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner break; 11133181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner } 11143181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner // FALLTHROUGH 11153181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner case TargetLowering::Expand: 1116279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng Result = ExpandConstantFP(CFP, true, DAG, TLI); 11173e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 11183e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 11193e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1120040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner case ISD::TokenFactor: 1121040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner if (Node->getNumOperands() == 2) { 1122c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 1123c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 1124c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 1125c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else if (Node->getNumOperands() == 3) { 1126c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 1127c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 1128c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); 1129c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1130040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner } else { 1131f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 1132040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner // Legalize the operands. 1133c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 1134c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 1135f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 1136a385e9b20fa7d37d3842ce15afd412f617d83a27Chris Lattner } 1137a385e9b20fa7d37d3842ce15afd412f617d83a27Chris Lattner break; 1138fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner 1139fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner case ISD::FORMAL_ARGUMENTS: 1140f4ec817299a4187044a6162c2f520772b3ad69a0Chris Lattner case ISD::CALL: 1141fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner // The only option for this is to custom lower it. 1142b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp3 = TLI.LowerOperation(Result.getValue(0), DAG); 1143b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner assert(Tmp3.Val && "Target didn't custom lower this node!"); 1144b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner assert(Tmp3.Val->getNumValues() == Result.Val->getNumValues() && 1145b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner "Lowering call/formal_arguments produced unexpected # results!"); 1146e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner 1147f4ec817299a4187044a6162c2f520772b3ad69a0Chris Lattner // Since CALL/FORMAL_ARGUMENTS nodes produce multiple values, make sure to 1148e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner // remember that we legalized all of them, so it doesn't get relegalized. 1149b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner for (unsigned i = 0, e = Tmp3.Val->getNumValues(); i != e; ++i) { 1150b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp1 = LegalizeOp(Tmp3.getValue(i)); 1151e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner if (Op.ResNo == i) 1152e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner Tmp2 = Tmp1; 1153e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner AddLegalizedOperand(SDOperand(Node, i), Tmp1); 1154e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner } 1155e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner return Tmp2; 1156557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb case ISD::EXTRACT_SUBREG: { 1157557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp1 = LegalizeOp(Node->getOperand(0)); 1158557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb ConstantSDNode *idx = dyn_cast<ConstantSDNode>(Node->getOperand(1)); 1159557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb assert(idx && "Operand must be a constant"); 1160557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp2 = DAG.getTargetConstant(idx->getValue(), idx->getValueType(0)); 1161557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 1162557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb } 1163557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb break; 1164557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb case ISD::INSERT_SUBREG: { 1165557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp1 = LegalizeOp(Node->getOperand(0)); 1166557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp2 = LegalizeOp(Node->getOperand(1)); 1167557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb ConstantSDNode *idx = dyn_cast<ConstantSDNode>(Node->getOperand(2)); 1168557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb assert(idx && "Operand must be a constant"); 1169557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp3 = DAG.getTargetConstant(idx->getValue(), idx->getValueType(0)); 1170557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1171557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb } 1172557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb break; 1173b2827b0901162169bb2692b77a839c9767849134Chris Lattner case ISD::BUILD_VECTOR: 1174b2827b0901162169bb2692b77a839c9767849134Chris Lattner switch (TLI.getOperationAction(ISD::BUILD_VECTOR, Node->getValueType(0))) { 11752332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: assert(0 && "This action is not supported yet!"); 11762332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Custom: 11772332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 11782332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner if (Tmp3.Val) { 11792332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = Tmp3; 11802332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 11812332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 11822332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // FALLTHROUGH 1183ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case TargetLowering::Expand: 1184ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Result = ExpandBUILD_VECTOR(Result.Val); 1185b2827b0901162169bb2692b77a839c9767849134Chris Lattner break; 11862332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 11872332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 11882332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case ISD::INSERT_VECTOR_ELT: 11892332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // InVec 11902332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // InVal 11912332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // InEltNo 11922332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 11932332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner 11942332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner switch (TLI.getOperationAction(ISD::INSERT_VECTOR_ELT, 11952332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Node->getValueType(0))) { 11962332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: assert(0 && "This action is not supported yet!"); 11972332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Legal: 11982332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 11992332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Custom: 12002332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 12012332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner if (Tmp3.Val) { 12022332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = Tmp3; 12032332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 12042332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 12052332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // FALLTHROUGH 12062332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Expand: { 12078d5a894501b7546dee94df03118b90126c420820Chris Lattner // If the insert index is a constant, codegen this as a scalar_to_vector, 12088d5a894501b7546dee94df03118b90126c420820Chris Lattner // then a shuffle that inserts it into the right position in the vector. 12098d5a894501b7546dee94df03118b90126c420820Chris Lattner if (ConstantSDNode *InsertPos = dyn_cast<ConstantSDNode>(Tmp3)) { 12108d5a894501b7546dee94df03118b90126c420820Chris Lattner SDOperand ScVec = DAG.getNode(ISD::SCALAR_TO_VECTOR, 12118d5a894501b7546dee94df03118b90126c420820Chris Lattner Tmp1.getValueType(), Tmp2); 12128d5a894501b7546dee94df03118b90126c420820Chris Lattner 12138d5a894501b7546dee94df03118b90126c420820Chris Lattner unsigned NumElts = MVT::getVectorNumElements(Tmp1.getValueType()); 12148d5a894501b7546dee94df03118b90126c420820Chris Lattner MVT::ValueType ShufMaskVT = MVT::getIntVectorWithNumElements(NumElts); 121551eaa86758338d5935c0eff0469c418b1256aba7Dan Gohman MVT::ValueType ShufMaskEltVT = MVT::getVectorElementType(ShufMaskVT); 12168d5a894501b7546dee94df03118b90126c420820Chris Lattner 12178d5a894501b7546dee94df03118b90126c420820Chris Lattner // We generate a shuffle of InVec and ScVec, so the shuffle mask should 12188d5a894501b7546dee94df03118b90126c420820Chris Lattner // be 0,1,2,3,4,5... with the appropriate element replaced with elt 0 of 12198d5a894501b7546dee94df03118b90126c420820Chris Lattner // the RHS. 1220bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> ShufOps; 12218d5a894501b7546dee94df03118b90126c420820Chris Lattner for (unsigned i = 0; i != NumElts; ++i) { 12228d5a894501b7546dee94df03118b90126c420820Chris Lattner if (i != InsertPos->getValue()) 12238d5a894501b7546dee94df03118b90126c420820Chris Lattner ShufOps.push_back(DAG.getConstant(i, ShufMaskEltVT)); 12248d5a894501b7546dee94df03118b90126c420820Chris Lattner else 12258d5a894501b7546dee94df03118b90126c420820Chris Lattner ShufOps.push_back(DAG.getConstant(NumElts, ShufMaskEltVT)); 12268d5a894501b7546dee94df03118b90126c420820Chris Lattner } 1227bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand ShufMask = DAG.getNode(ISD::BUILD_VECTOR, ShufMaskVT, 1228bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &ShufOps[0], ShufOps.size()); 12298d5a894501b7546dee94df03118b90126c420820Chris Lattner 12308d5a894501b7546dee94df03118b90126c420820Chris Lattner Result = DAG.getNode(ISD::VECTOR_SHUFFLE, Tmp1.getValueType(), 12318d5a894501b7546dee94df03118b90126c420820Chris Lattner Tmp1, ScVec, ShufMask); 12328d5a894501b7546dee94df03118b90126c420820Chris Lattner Result = LegalizeOp(Result); 12338d5a894501b7546dee94df03118b90126c420820Chris Lattner break; 12348d5a894501b7546dee94df03118b90126c420820Chris Lattner } 12358d5a894501b7546dee94df03118b90126c420820Chris Lattner 12362332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // If the target doesn't support this, we have to spill the input vector 12372332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // to a temporary stack slot, update the element, then reload it. This is 12382332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // badness. We could also load the value into a vector register (either 12392332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // with a "move to register" or "extload into register" instruction, then 12402332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // permute it into place, if the idx is a constant and if the idx is 12412332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // supported by the target. 1242f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng MVT::ValueType VT = Tmp1.getValueType(); 1243f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng MVT::ValueType EltVT = Tmp2.getValueType(); 1244f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng MVT::ValueType IdxVT = Tmp3.getValueType(); 1245f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng MVT::ValueType PtrVT = TLI.getPointerTy(); 124685dd3be7354f848231362bd70f6517c0e667f95dChris Lattner SDOperand StackPtr = DAG.CreateStackTemporary(VT); 1247eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Store the vector. 12488b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDOperand Ch = DAG.getStore(DAG.getEntryNode(), Tmp1, StackPtr, NULL, 0); 1249eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng 1250eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Truncate or zero extend offset to target pointer type. 1251f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng unsigned CastOpc = (IdxVT > PtrVT) ? ISD::TRUNCATE : ISD::ZERO_EXTEND; 1252f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng Tmp3 = DAG.getNode(CastOpc, PtrVT, Tmp3); 1253eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Add the offset to the index. 1254f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng unsigned EltSize = MVT::getSizeInBits(EltVT)/8; 1255f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng Tmp3 = DAG.getNode(ISD::MUL, IdxVT, Tmp3,DAG.getConstant(EltSize, IdxVT)); 1256f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng SDOperand StackPtr2 = DAG.getNode(ISD::ADD, IdxVT, Tmp3, StackPtr); 1257eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Store the scalar value. 12588b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Ch = DAG.getStore(Ch, Tmp2, StackPtr2, NULL, 0); 1259eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Load the updated vector. 1260466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getLoad(VT, Ch, StackPtr, NULL, 0); 12612332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 12622332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 12632332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 12642332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 1265ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case ISD::SCALAR_TO_VECTOR: 12664352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (!TLI.isTypeLegal(Node->getOperand(0).getValueType())) { 12674352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = LegalizeOp(ExpandSCALAR_TO_VECTOR(Node)); 12684352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 12694352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 12704352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 1271ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // InVal 1272ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 1273ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner switch (TLI.getOperationAction(ISD::SCALAR_TO_VECTOR, 1274ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Node->getValueType(0))) { 1275ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner default: assert(0 && "This action is not supported yet!"); 1276ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case TargetLowering::Legal: 1277ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 12784d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner case TargetLowering::Custom: 12794d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 12804d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner if (Tmp3.Val) { 12814d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner Result = Tmp3; 12824d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner break; 12834d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner } 12844d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner // FALLTHROUGH 12854352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Expand: 12864352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = LegalizeOp(ExpandSCALAR_TO_VECTOR(Node)); 1287ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 1288ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 1289ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 129087100e0b83b808757bf44dabecd1d1048255d1adChris Lattner case ISD::VECTOR_SHUFFLE: 129187100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the input vectors, 129287100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // but not the shuffle mask. 129387100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 129487100e0b83b808757bf44dabecd1d1048255d1adChris Lattner 129587100e0b83b808757bf44dabecd1d1048255d1adChris Lattner // Allow targets to custom lower the SHUFFLEs they support. 12964352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner switch (TLI.getOperationAction(ISD::VECTOR_SHUFFLE,Result.getValueType())) { 12974352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner default: assert(0 && "Unknown operation action!"); 12984352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Legal: 12994352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner assert(isShuffleLegal(Result.getValueType(), Node->getOperand(2)) && 13004352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner "vector shuffle should not be created if not legal!"); 13014352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 13024352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Custom: 130318dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Tmp3 = TLI.LowerOperation(Result, DAG); 130418dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng if (Tmp3.Val) { 130518dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Result = Tmp3; 130618dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng break; 130718dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 130818dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng // FALLTHROUGH 130918dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng case TargetLowering::Expand: { 131018dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng MVT::ValueType VT = Node->getValueType(0); 131151eaa86758338d5935c0eff0469c418b1256aba7Dan Gohman MVT::ValueType EltVT = MVT::getVectorElementType(VT); 131218dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng MVT::ValueType PtrVT = TLI.getPointerTy(); 131318dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng SDOperand Mask = Node->getOperand(2); 131418dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng unsigned NumElems = Mask.getNumOperands(); 1315bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand,8> Ops; 131618dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng for (unsigned i = 0; i != NumElems; ++i) { 131718dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng SDOperand Arg = Mask.getOperand(i); 131818dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng if (Arg.getOpcode() == ISD::UNDEF) { 131918dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Ops.push_back(DAG.getNode(ISD::UNDEF, EltVT)); 132018dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } else { 132118dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng assert(isa<ConstantSDNode>(Arg) && "Invalid VECTOR_SHUFFLE mask!"); 132218dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng unsigned Idx = cast<ConstantSDNode>(Arg)->getValue(); 132318dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng if (Idx < NumElems) 132418dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EltVT, Tmp1, 132518dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng DAG.getConstant(Idx, PtrVT))); 132618dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng else 132718dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EltVT, Tmp2, 132818dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng DAG.getConstant(Idx - NumElems, PtrVT))); 132918dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 133018dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 1331bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Result = DAG.getNode(ISD::BUILD_VECTOR, VT, &Ops[0], Ops.size()); 13324352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 133318dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 13344352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Promote: { 13354352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Change base type to a different vector type. 13364352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner MVT::ValueType OVT = Node->getValueType(0); 13374352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 13384352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 13394352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Cast the two input vectors. 13404352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Tmp1 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp1); 13414352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Tmp2 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp2); 13424352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 13434352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Convert the shuffle mask to the right # elements. 13444352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Tmp3 = SDOperand(isShuffleLegal(OVT, Node->getOperand(2)), 0); 13454352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner assert(Tmp3.Val && "Shuffle not legal?"); 13464352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = DAG.getNode(ISD::VECTOR_SHUFFLE, NVT, Tmp1, Tmp2, Tmp3); 13474352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = DAG.getNode(ISD::BIT_CONVERT, OVT, Result); 13484352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 13494352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 135087100e0b83b808757bf44dabecd1d1048255d1adChris Lattner } 135187100e0b83b808757bf44dabecd1d1048255d1adChris Lattner break; 1352384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner 1353384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner case ISD::EXTRACT_VECTOR_ELT: 13547f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp1 = Node->getOperand(0); 1355384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 1356384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 13577f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = ExpandEXTRACT_VECTOR_ELT(Result); 1358384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner break; 1359384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner 13607f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::EXTRACT_SUBVECTOR: 13617f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp1 = Node->getOperand(0); 13627f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp2 = LegalizeOp(Node->getOperand(1)); 13637f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 13647f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = ExpandEXTRACT_SUBVECTOR(Result); 13656595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 13666595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 13676831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case ISD::CALLSEQ_START: { 13686831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDNode *CallEnd = FindCallEndFromCallStart(Node); 13696831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 13706831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Recursively Legalize all of the inputs of the call end that do not lead 13716831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // to this call start. This ensures that any libcalls that need be inserted 13726831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // are inserted *before* the CALLSEQ_START. 137300755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner {SmallPtrSet<SDNode*, 32> NodesLeadingTo; 13746831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = CallEnd->getNumOperands(); i != e; ++i) 1375c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner LegalizeAllNodesNotLeadingTo(CallEnd->getOperand(i).Val, Node, 1376c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner NodesLeadingTo); 1377c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner } 13786831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 13796831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Now that we legalized all of the inputs (which may have inserted 13806831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // libcalls) create the new CALLSEQ_START node. 13816831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 13826831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 13836831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Merge in the last call, to ensure that this call start after the last 13846831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // call ended. 1385c5d7d7c715f7b7a4eeea1ceaafefc3d1d6df2addChris Lattner if (LastCALLSEQ_END.getOpcode() != ISD::EntryToken) { 1386b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 1387b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp1 = LegalizeOp(Tmp1); 1388b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner } 13896831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 13906831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Do not try to legalize the target-specific arguments (#1+). 13916831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Tmp1 != Node->getOperand(0)) { 1392f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 13936831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Ops[0] = Tmp1; 1394f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 13956831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 13966831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 13976831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Remember that the CALLSEQ_START is legalized. 13984b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(Op.getValue(0), Result); 13994b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner if (Node->getNumValues() == 2) // If this has a flag result, remember it. 14004b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(Op.getValue(1), Result.getValue(1)); 14014b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner 14026831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Now that the callseq_start and all of the non-call nodes above this call 14036831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // sequence have been legalized, legalize the call itself. During this 14046831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // process, no libcalls can/will be inserted, guaranteeing that no calls 14056831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // can overlap. 14066831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "Inconsistent sequentialization of calls!"); 14076831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand InCallSEQ = LastCALLSEQ_END; 14086831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Note that we are selecting this call! 14096831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = SDOperand(CallEnd, 0); 14106831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = true; 14116831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 14126831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalize the call, starting from the CALLSEQ_END. 14136831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(LastCALLSEQ_END); 14146831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "CALLSEQ_END should have cleared this!"); 14156831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Result; 14166831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 141716cd04d26c53c6f81313cafb85f6c0e7a07cdff6Chris Lattner case ISD::CALLSEQ_END: 14186831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // If the CALLSEQ_START node hasn't been legalized first, legalize it. This 14196831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // will cause this node to be legalized as well as handling libcalls right. 14206831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (LastCALLSEQ_END.Val != Node) { 14216831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(SDOperand(FindCallStartFromCallEnd(Node), 0)); 1422718071c476014cb0aaff9c7d018120d5a8930217Chris Lattner DenseMap<SDOperand, SDOperand>::iterator I = LegalizedNodes.find(Op); 14236831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(I != LegalizedNodes.end() && 14246831a815999dde4cf801e2076e66b4943964daf2Chris Lattner "Legalizing the call start should have legalized this node!"); 14256831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return I->second; 14266831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 14276831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 14286831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Otherwise, the call start has been legalized and everything is going 14296831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // according to plan. Just legalize ourselves normally here. 14303e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 143170814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner // Do not try to legalize the target-specific arguments (#1+), except for 143270814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner // an optional flag input. 143370814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Node->getOperand(Node->getNumOperands()-1).getValueType() != MVT::Flag){ 143470814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Tmp1 != Node->getOperand(0)) { 1435f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 143670814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops[0] = Tmp1; 1437f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 143870814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } 143970814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } else { 144070814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Tmp2 = LegalizeOp(Node->getOperand(Node->getNumOperands()-1)); 144170814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Tmp1 != Node->getOperand(0) || 144270814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Tmp2 != Node->getOperand(Node->getNumOperands()-1)) { 1443f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 144470814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops[0] = Tmp1; 144570814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops.back() = Tmp2; 1446f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 144770814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } 14486a5428934ba6159c1acc541944332e51a6cfa59aChris Lattner } 14494b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner assert(IsLegalizingCall && "Call sequence imbalance between start/end?"); 14506831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // This finishes up call legalization. 14516831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = false; 14524b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner 14534b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner // If the CALLSEQ_END node has a flag, remember that we legalized it. 14544b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 14554b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner if (Node->getNumValues() == 2) 14564b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 14574b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner return Result.getValue(Op.ResNo); 1458a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng case ISD::DYNAMIC_STACKALLOC: { 145961bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng MVT::ValueType VT = Node->getValueType(0); 1460fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1461fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the size. 1462fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the alignment. 1463c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1464fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner 1465c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = Result.getValue(0); 14665f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner Tmp2 = Result.getValue(1); 146761bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 1468a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng default: assert(0 && "This action is not supported yet!"); 1469903d278a9b7398d8905c90832e587e0556c52789Chris Lattner case TargetLowering::Expand: { 1470903d278a9b7398d8905c90832e587e0556c52789Chris Lattner unsigned SPReg = TLI.getStackPointerRegisterToSaveRestore(); 1471903d278a9b7398d8905c90832e587e0556c52789Chris Lattner assert(SPReg && "Target cannot require DYNAMIC_STACKALLOC expansion and" 1472903d278a9b7398d8905c90832e587e0556c52789Chris Lattner " not tell us which reg is the stack pointer!"); 1473903d278a9b7398d8905c90832e587e0556c52789Chris Lattner SDOperand Chain = Tmp1.getOperand(0); 1474903d278a9b7398d8905c90832e587e0556c52789Chris Lattner SDOperand Size = Tmp2.getOperand(1); 147561bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng SDOperand SP = DAG.getCopyFromReg(Chain, SPReg, VT); 147661bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng Chain = SP.getValue(1); 147761bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng unsigned Align = cast<ConstantSDNode>(Tmp3)->getValue(); 147861bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng unsigned StackAlign = 147961bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng TLI.getTargetMachine().getFrameInfo()->getStackAlignment(); 148061bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng if (Align > StackAlign) 14813e20bba5eb5df2fdd3e6655c8470084cf05032d4Evan Cheng SP = DAG.getNode(ISD::AND, VT, SP, 14823e20bba5eb5df2fdd3e6655c8470084cf05032d4Evan Cheng DAG.getConstant(-(uint64_t)Align, VT)); 148361bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng Tmp1 = DAG.getNode(ISD::SUB, VT, SP, Size); // Value 148461bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng Tmp2 = DAG.getCopyToReg(Chain, SPReg, Tmp1); // Output chain 1485c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp1); 1486c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp2); 1487903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1488903d278a9b7398d8905c90832e587e0556c52789Chris Lattner } 1489903d278a9b7398d8905c90832e587e0556c52789Chris Lattner case TargetLowering::Custom: 14905f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner Tmp3 = TLI.LowerOperation(Tmp1, DAG); 14915f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner if (Tmp3.Val) { 1492c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp3); 1493c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp3.getValue(1)); 1494a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 1495903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1496a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng case TargetLowering::Legal: 1497903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1498a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 1499903d278a9b7398d8905c90832e587e0556c52789Chris Lattner // Since this op produce two values, make sure to remember that we 1500903d278a9b7398d8905c90832e587e0556c52789Chris Lattner // legalized both of them. 1501c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 1502c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 1503903d278a9b7398d8905c90832e587e0556c52789Chris Lattner return Op.ResNo ? Tmp2 : Tmp1; 1504a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 150525a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner case ISD::INLINEASM: { 1506f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 150725a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner bool Changed = false; 150825a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner // Legalize all of the operands of the inline asm, in case they are nodes 150925a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner // that need to be expanded or something. Note we skip the asm string and 151025a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner // all of the TargetConstant flags. 151125a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner SDOperand Op = LegalizeOp(Ops[0]); 151225a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Changed = Op != Ops[0]; 151325a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Ops[0] = Op; 151425a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner 151525a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner bool HasInFlag = Ops.back().getValueType() == MVT::Flag; 151625a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner for (unsigned i = 2, e = Ops.size()-HasInFlag; i < e; ) { 151725a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner unsigned NumVals = cast<ConstantSDNode>(Ops[i])->getValue() >> 3; 151825a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner for (++i; NumVals; ++i, --NumVals) { 151925a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner SDOperand Op = LegalizeOp(Ops[i]); 152025a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner if (Op != Ops[i]) { 152125a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Changed = true; 152225a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Ops[i] = Op; 152325a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 152425a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 152525a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 152625a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner 152725a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner if (HasInFlag) { 152825a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Op = LegalizeOp(Ops.back()); 152925a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Changed |= Op != Ops.back(); 153025a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Ops.back() = Op; 153125a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 1532ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner 153325a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner if (Changed) 1534f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 1535ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner 1536ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner // INLINE asm returns a chain and flag, make sure to add both to the map. 1537c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 1538ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 1539ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner return Result.getValue(Op.ResNo); 154025a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 1541c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner case ISD::BR: 1542c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 15436831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a branch. 15446831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 15456831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 15466831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 15476831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 1548c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 1549c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner break; 155037efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::BRIND: 155137efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 155237efe6764568a3829fee26aba532283131d1a104Nate Begeman // Ensure that libcalls are emitted before a branch. 155337efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 155437efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp1 = LegalizeOp(Tmp1); 155537efe6764568a3829fee26aba532283131d1a104Nate Begeman LastCALLSEQ_END = DAG.getEntryNode(); 155637efe6764568a3829fee26aba532283131d1a104Nate Begeman 155737efe6764568a3829fee26aba532283131d1a104Nate Begeman switch (getTypeAction(Node->getOperand(1).getValueType())) { 155837efe6764568a3829fee26aba532283131d1a104Nate Begeman default: assert(0 && "Indirect target must be legal type (pointer)!"); 155937efe6764568a3829fee26aba532283131d1a104Nate Begeman case Legal: 156037efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the condition. 156137efe6764568a3829fee26aba532283131d1a104Nate Begeman break; 156237efe6764568a3829fee26aba532283131d1a104Nate Begeman } 156337efe6764568a3829fee26aba532283131d1a104Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 156437efe6764568a3829fee26aba532283131d1a104Nate Begeman break; 15653d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case ISD::BR_JT: 15663d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 15673d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // Ensure that libcalls are emitted before a branch. 15683d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 15693d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = LegalizeOp(Tmp1); 15703d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng LastCALLSEQ_END = DAG.getEntryNode(); 15713d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng 15723d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the jumptable node. 15733d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 15743d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng 15753d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng switch (TLI.getOperationAction(ISD::BR_JT, MVT::Other)) { 15763d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng default: assert(0 && "This action is not supported yet!"); 15773d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case TargetLowering::Legal: break; 15783d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case TargetLowering::Custom: 15793d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 15803d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng if (Tmp1.Val) Result = Tmp1; 15813d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng break; 15823d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case TargetLowering::Expand: { 15833d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Chain = Result.getOperand(0); 15843d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Table = Result.getOperand(1); 15853d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Index = Result.getOperand(2); 15863d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng 15873d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng MVT::ValueType PTy = TLI.getPointerTy(); 1588acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey MachineFunction &MF = DAG.getMachineFunction(); 1589acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey unsigned EntrySize = MF.getJumpTableInfo()->getEntrySize(); 15903d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Index= DAG.getNode(ISD::MUL, PTy, Index, DAG.getConstant(EntrySize, PTy)); 15913d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Addr = DAG.getNode(ISD::ADD, PTy, Index, Table); 1592acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey 1593acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey SDOperand LD; 1594acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey switch (EntrySize) { 1595acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey default: assert(0 && "Size of jump table not supported yet."); break; 1596acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey case 4: LD = DAG.getLoad(MVT::i32, Chain, Addr, NULL, 0); break; 1597acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey case 8: LD = DAG.getLoad(MVT::i64, Chain, Addr, NULL, 0); break; 1598acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey } 1599acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey 1600acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey if (TLI.getTargetMachine().getRelocationModel() == Reloc::PIC_) { 16013d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // For PIC, the sequence is: 16023d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // BRIND(load(Jumptable + index) + RelocBase) 16033d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // RelocBase is the JumpTable on PPC and X86, GOT on Alpha 16043d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Reloc; 16053d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng if (TLI.usesGlobalOffsetTable()) 16063d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Reloc = DAG.getNode(ISD::GLOBAL_OFFSET_TABLE, PTy); 16073d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng else 16083d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Reloc = Table; 1609d063189c0958536aae7ecebec5676541b2cdef9bEvan Cheng Addr = (PTy != MVT::i32) ? DAG.getNode(ISD::SIGN_EXTEND, PTy, LD) : LD; 16103d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Addr = DAG.getNode(ISD::ADD, PTy, Addr, Reloc); 16113d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Result = DAG.getNode(ISD::BRIND, MVT::Other, LD.getValue(1), Addr); 16123d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } else { 16133d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Result = DAG.getNode(ISD::BRIND, MVT::Other, LD.getValue(1), LD); 16143d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } 16153d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } 16163d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } 16173d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng break; 1618c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner case ISD::BRCOND: 1619c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 16206831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a return. 16216831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 16226831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 16236831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 16246831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 162547e9223e06390897c3834f8c527001df392570ffChris Lattner switch (getTypeAction(Node->getOperand(1).getValueType())) { 162647e9223e06390897c3834f8c527001df392570ffChris Lattner case Expand: assert(0 && "It's impossible to expand bools"); 162747e9223e06390897c3834f8c527001df392570ffChris Lattner case Legal: 162847e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the condition. 162947e9223e06390897c3834f8c527001df392570ffChris Lattner break; 163047e9223e06390897c3834f8c527001df392570ffChris Lattner case Promote: 163147e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the condition. 1632f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner 1633f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner // The top bits of the promoted condition are not necessarily zero, ensure 1634f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner // that the value is properly zero extended. 1635ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman if (!DAG.MaskedValueIsZero(Tmp2, 1636f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner MVT::getIntVTBitMask(Tmp2.getValueType())^1)) 1637f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner Tmp2 = DAG.getZeroExtendInReg(Tmp2, MVT::i1); 163847e9223e06390897c3834f8c527001df392570ffChris Lattner break; 163947e9223e06390897c3834f8c527001df392570ffChris Lattner } 1640456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1641456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Basic block destination (Op#2) is always legal. 1642c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 16437cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman 16447cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman switch (TLI.getOperationAction(ISD::BRCOND, MVT::Other)) { 16457cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman default: assert(0 && "This action is not supported yet!"); 1646456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1647456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1648456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 1649456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 1650456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 16517cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman case TargetLowering::Expand: 16527cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // Expand brcond's setcc into its constituent parts and create a BR_CC 16537cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // Node. 16547cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman if (Tmp2.getOpcode() == ISD::SETCC) { 16557cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Result = DAG.getNode(ISD::BR_CC, MVT::Other, Tmp1, Tmp2.getOperand(2), 16567cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Tmp2.getOperand(0), Tmp2.getOperand(1), 16577cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Node->getOperand(2)); 16587cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } else { 16597cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Result = DAG.getNode(ISD::BR_CC, MVT::Other, Tmp1, 16607cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman DAG.getCondCode(ISD::SETNE), Tmp2, 16617cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman DAG.getConstant(0, Tmp2.getValueType()), 16627cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Node->getOperand(2)); 16637cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 16647cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman break; 16657cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 16667cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman break; 16677cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman case ISD::BR_CC: 16687cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 16696831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a branch. 16706831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 16716831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 1672750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(2); // LHS 1673750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = Node->getOperand(3); // RHS 1674750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp4 = Node->getOperand(1); // CC 1675181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner 1676750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp2, Tmp3, Tmp4); 1677722cb360690e5d7742b01a9f497fdb65bf8079d5Evan Cheng LastCALLSEQ_END = DAG.getEntryNode(); 1678722cb360690e5d7742b01a9f497fdb65bf8079d5Evan Cheng 1679750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we didn't get both a LHS and RHS back from LegalizeSetCCOperands, 1680750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the LHS is a legal SETCC itself. In this case, we need to compare 1681750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the result against zero to select between true and false values. 1682750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp3.Val == 0) { 1683750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = DAG.getConstant(0, Tmp2.getValueType()); 1684750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp4 = DAG.getCondCode(ISD::SETNE); 1685750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 1686750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 1687750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp4, Tmp2, Tmp3, 1688750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Node->getOperand(4)); 1689456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1690181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner switch (TLI.getOperationAction(ISD::BR_CC, Tmp3.getValueType())) { 1691181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner default: assert(0 && "Unexpected action for BR_CC!"); 1692456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1693456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1694456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp4 = TLI.LowerOperation(Result, DAG); 1695456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp4.Val) Result = Tmp4; 1696181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner break; 16977cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 1698c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner break; 1699f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng case ISD::LOAD: { 1700466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LoadSDNode *LD = cast<LoadSDNode>(Node); 1701466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = LegalizeOp(LD->getChain()); // Legalize the chain. 1702466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = LegalizeOp(LD->getBasePtr()); // Legalize the base pointer. 17032d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth 1704466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ISD::LoadExtType ExtType = LD->getExtensionType(); 1705466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::NON_EXTLOAD) { 1706466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng MVT::ValueType VT = Node->getValueType(0); 1707466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, LD->getOffset()); 1708466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = Result.getValue(0); 1709466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp4 = Result.getValue(1); 1710456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1711466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 1712466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng default: assert(0 && "This action is not supported yet!"); 1713f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio case TargetLowering::Legal: 1714f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // If this is an unaligned load and the target doesn't support it, 1715f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // expand it. 1716f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (!TLI.allowsUnalignedMemoryAccesses()) { 1717f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio unsigned ABIAlignment = TLI.getTargetData()-> 1718f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio getABITypeAlignment(MVT::getTypeForValueType(LD->getLoadedVT())); 1719f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (LD->getAlignment() < ABIAlignment){ 1720f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Result = ExpandUnalignedLoad(cast<LoadSDNode>(Result.Val), DAG, 1721f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio TLI); 1722f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Tmp3 = Result.getOperand(0); 1723f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Tmp4 = Result.getOperand(1); 1724907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen Tmp3 = LegalizeOp(Tmp3); 1725907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen Tmp4 = LegalizeOp(Tmp4); 1726f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 1727f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 1728f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio break; 1729466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Custom: 1730466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = TLI.LowerOperation(Tmp3, DAG); 1731466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (Tmp1.Val) { 1732466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = LegalizeOp(Tmp1); 1733466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp4 = LegalizeOp(Tmp1.getValue(1)); 1734466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1735466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1736466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Promote: { 1737466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Only promote a load of vector type to another. 1738466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng assert(MVT::isVector(VT) && "Cannot promote this load!"); 1739466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Change base type to a different vector type. 1740466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), VT); 1741466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 1742466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = DAG.getLoad(NVT, Tmp1, Tmp2, LD->getSrcValue(), 1743d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->getSrcValueOffset(), 1744d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->isVolatile(), LD->getAlignment()); 1745466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = LegalizeOp(DAG.getNode(ISD::BIT_CONVERT, VT, Tmp1)); 174641f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng Tmp4 = LegalizeOp(Tmp1.getValue(1)); 1747466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1748f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 1749466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1750466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Since loads produce two values, make sure to remember that we 1751466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // legalized both of them. 1752466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 0), Tmp3); 1753466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), Tmp4); 1754466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return Op.ResNo ? Tmp4 : Tmp3; 1755466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else { 17562e49f090f9656af7d5ed4d5c4e9fa26af59c7233Evan Cheng MVT::ValueType SrcVT = LD->getLoadedVT(); 1757466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng switch (TLI.getLoadXAction(ExtType, SrcVT)) { 1758466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng default: assert(0 && "This action is not supported yet!"); 1759466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Promote: 1760466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng assert(SrcVT == MVT::i1 && 1761466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng "Can only promote extending LOAD from i1 -> i8!"); 1762466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getExtLoad(ExtType, Node->getValueType(0), Tmp1, Tmp2, 1763466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LD->getSrcValue(), LD->getSrcValueOffset(), 1764d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman MVT::i8, LD->isVolatile(), LD->getAlignment()); 1765f411b83c8c6853c2a922b692e782566353153f08Duncan Sands Tmp1 = Result.getValue(0); 1766f411b83c8c6853c2a922b692e782566353153f08Duncan Sands Tmp2 = Result.getValue(1); 1767c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner break; 1768466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Custom: 1769466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng isCustom = true; 1770466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // FALLTHROUGH 1771466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Legal: 1772466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, LD->getOffset()); 1773466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = Result.getValue(0); 1774466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = Result.getValue(1); 1775456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1776466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (isCustom) { 1777466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = TLI.LowerOperation(Result, DAG); 1778466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (Tmp3.Val) { 1779466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = LegalizeOp(Tmp3); 1780466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = LegalizeOp(Tmp3.getValue(1)); 1781466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1782f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } else { 1783f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // If this is an unaligned load and the target doesn't support it, 1784f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // expand it. 1785f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (!TLI.allowsUnalignedMemoryAccesses()) { 1786f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio unsigned ABIAlignment = TLI.getTargetData()-> 1787f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio getABITypeAlignment(MVT::getTypeForValueType(LD->getLoadedVT())); 1788f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (LD->getAlignment() < ABIAlignment){ 1789f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Result = ExpandUnalignedLoad(cast<LoadSDNode>(Result.Val), DAG, 1790f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio TLI); 1791f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Tmp1 = Result.getOperand(0); 1792f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Tmp2 = Result.getOperand(1); 1793907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen Tmp1 = LegalizeOp(Tmp1); 1794907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen Tmp2 = LegalizeOp(Tmp2); 1795f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 1796f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 1797456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 1798466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1799466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Expand: 1800466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // f64 = EXTLOAD f32 should expand to LOAD, FP_EXTEND 1801466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (SrcVT == MVT::f32 && Node->getValueType(0) == MVT::f64) { 1802466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Load = DAG.getLoad(SrcVT, Tmp1, Tmp2, LD->getSrcValue(), 1803d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->getSrcValueOffset(), 1804d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->isVolatile(), LD->getAlignment()); 1805466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getNode(ISD::FP_EXTEND, Node->getValueType(0), Load); 1806466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = LegalizeOp(Result); // Relegalize new nodes. 1807466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = LegalizeOp(Load.getValue(1)); 1808466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1809466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1810fea997aac5773e936754de5436029c2a4fa1e930Chris Lattner assert(ExtType != ISD::EXTLOAD &&"EXTLOAD should always be supported!"); 1811466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Turn the unsupported load into an EXTLOAD followed by an explicit 1812466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // zero/sign extend inreg. 1813466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getExtLoad(ISD::EXTLOAD, Node->getValueType(0), 1814466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1, Tmp2, LD->getSrcValue(), 1815d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->getSrcValueOffset(), SrcVT, 1816d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->isVolatile(), LD->getAlignment()); 1817466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand ValRes; 1818466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::SEXTLOAD) 1819466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ValRes = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 1820466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result, DAG.getValueType(SrcVT)); 1821466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng else 1822466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ValRes = DAG.getZeroExtendInReg(Result, SrcVT); 1823466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = LegalizeOp(ValRes); // Relegalize new nodes. 1824466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = LegalizeOp(Result.getValue(1)); // Relegalize new nodes. 1825c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner break; 18269d416f713e8b9e4f0c0c2b3f6f57ce2dd8993209Andrew Lenharth } 1827466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Since loads produce two values, make sure to remember that we legalized 1828466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // both of them. 1829466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 1830466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 1831466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return Op.ResNo ? Tmp2 : Tmp1; 183201ff7216dd7829d4094754086baf28aa2d7149acChris Lattner } 183301ff7216dd7829d4094754086baf28aa2d7149acChris Lattner } 18345dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case ISD::EXTRACT_ELEMENT: { 18355dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman MVT::ValueType OpTy = Node->getOperand(0).getValueType(); 18365dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman switch (getTypeAction(OpTy)) { 1837c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner default: assert(0 && "EXTRACT_ELEMENT action for type unimplemented!"); 18385dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case Legal: 18395dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman if (cast<ConstantSDNode>(Node->getOperand(1))->getValue()) { 18405dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // 1 -> Hi 18415dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::SRL, OpTy, Node->getOperand(0), 18425dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman DAG.getConstant(MVT::getSizeInBits(OpTy)/2, 18435dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman TLI.getShiftAmountTy())); 18445dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), Result); 18455dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } else { 18465dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // 0 -> Lo 18475dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), 18485dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Node->getOperand(0)); 18495dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 18505dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman break; 18515dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case Expand: 18525dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // Get both the low and high parts. 18535dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 18545dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman if (cast<ConstantSDNode>(Node->getOperand(1))->getValue()) 18555dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = Tmp2; // 1 -> Hi 18565dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman else 18575dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = Tmp1; // 0 -> Lo 18585dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman break; 18595dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 18603e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 18615dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 18623e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 18633e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::CopyToReg: 18643e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1865edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 1866c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner assert(isTypeLegal(Node->getOperand(2).getValueType()) && 1867d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner "Register type must be legal!"); 18687310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // Legalize the incoming value (must be a legal type). 1869d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(2)); 1870f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner if (Node->getNumValues() == 1) { 1871c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1), Tmp2); 18727310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } else { 1873f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner assert(Node->getNumValues() == 2 && "Unknown CopyToReg"); 1874c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Node->getNumOperands() == 4) { 1875f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(3)); 1876c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1), Tmp2, 1877c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3); 1878c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else { 1879c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1),Tmp2); 18807310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 18817310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner 18827310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // Since this produces two values, make sure to remember that we legalized 18837310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // both of them. 1884c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 18857310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 1886c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Result; 18877310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 18883e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 18893e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 18903e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::RET: 18913e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 18926831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 18936831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a return. 18946831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 18956831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 18966831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 1897f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner 18983e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getNumOperands()) { 18998e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng case 3: // ret val 190098f8aeb45fc1e54437cbb8f2a7445c609deab832Evan Cheng Tmp2 = Node->getOperand(1); 19018e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Tmp3 = Node->getOperand(2); // Signness 1902f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner switch (getTypeAction(Tmp2.getValueType())) { 19033e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 19048e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, LegalizeOp(Tmp2), Tmp3); 19053e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 1906f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner case Expand: 19077f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (!MVT::isVector(Tmp2.getValueType())) { 1908f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SDOperand Lo, Hi; 1909f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner ExpandOp(Tmp2, Lo, Hi); 1910edf2e8da256496c19390cfd46da80746373e9989Chris Lattner 1911edf2e8da256496c19390cfd46da80746373e9989Chris Lattner // Big endian systems want the hi reg first. 1912edf2e8da256496c19390cfd46da80746373e9989Chris Lattner if (!TLI.isLittleEndian()) 1913edf2e8da256496c19390cfd46da80746373e9989Chris Lattner std::swap(Lo, Hi); 1914edf2e8da256496c19390cfd46da80746373e9989Chris Lattner 191513acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (Hi.Val) 191613acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Tmp3, Hi,Tmp3); 191713acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng else 191813acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Tmp3); 1919f921a518912df706a8edf1f867f52e8afc6e2b55Chris Lattner Result = LegalizeOp(Result); 1920f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } else { 1921f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SDNode *InVal = Tmp2.Val; 1922e526962fc59d38b4b0f671717df7657b8e0d8baaDale Johannesen int InIx = Tmp2.ResNo; 1923e526962fc59d38b4b0f671717df7657b8e0d8baaDale Johannesen unsigned NumElems = MVT::getVectorNumElements(InVal->getValueType(InIx)); 1924e526962fc59d38b4b0f671717df7657b8e0d8baaDale Johannesen MVT::ValueType EVT = MVT::getVectorElementType(InVal->getValueType(InIx)); 1925f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner 19267f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Figure out if there is a simple type corresponding to this Vector 1927ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // type. If so, convert to the vector type. 1928f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 19297f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (TLI.isTypeLegal(TVT)) { 1930ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // Turn this into a return of the vector type. 19317f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp2 = LegalizeOp(Tmp2); 19328e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1933f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } else if (NumElems == 1) { 1934f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // Turn this into a return of the scalar type. 19357f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp2 = ScalarizeVectorOp(Tmp2); 19367f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp2 = LegalizeOp(Tmp2); 19378e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1938b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner 1939b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // FIXME: Returns of gcc generic vectors smaller than a legal type 1940b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // should be returned in integer registers! 1941b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner 1942f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // The scalarized value type may not be legal, e.g. it might require 1943f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // promotion or expansion. Relegalize the return. 1944f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner Result = LegalizeOp(Result); 1945f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } else { 1946b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // FIXME: Returns of gcc generic vectors larger than a legal vector 1947b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // type should be returned by reference! 1948f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SDOperand Lo, Hi; 1949f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SplitVectorOp(Tmp2, Lo, Hi); 1950fea997aac5773e936754de5436029c2a4fa1e930Chris Lattner Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Tmp3, Hi,Tmp3); 1951f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner Result = LegalizeOp(Result); 1952f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } 1953f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } 1954edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman break; 19553e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Promote: 19568b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 19578e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1958c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); 19598b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 19603e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 19613e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 19623e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case 1: // ret void 1963c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 19643e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 19653e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner default: { // ret <values> 1966f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> NewValues; 19673e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner NewValues.push_back(Tmp1); 19688e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng for (unsigned i = 1, e = Node->getNumOperands(); i < e; i += 2) 19693e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (getTypeAction(Node->getOperand(i).getValueType())) { 19703e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 19714e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner NewValues.push_back(LegalizeOp(Node->getOperand(i))); 19728e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng NewValues.push_back(Node->getOperand(i+1)); 19733e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 19743e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Expand: { 19753e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand Lo, Hi; 19766595cb3000d7f5f8e9a76d556aa8609db91b7887Dan Gohman assert(!MVT::isExtendedVT(Node->getOperand(i).getValueType()) && 1977b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner "FIXME: TODO: implement returning non-legal vector types!"); 19783e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(i), Lo, Hi); 19793e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner NewValues.push_back(Lo); 19808e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng NewValues.push_back(Node->getOperand(i+1)); 198113acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (Hi.Val) { 198213acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng NewValues.push_back(Hi); 198313acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng NewValues.push_back(Node->getOperand(i+1)); 198413acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng } 1985edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman break; 19863e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 19873e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Promote: 19888b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(0 && "Can't promote multiple return value yet!"); 19893e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1990c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 1991c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (NewValues.size() == Node->getNumOperands()) 1992f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &NewValues[0],NewValues.size()); 1993c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner else 1994f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.getNode(ISD::RET, MVT::Other, 1995f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner &NewValues[0], NewValues.size()); 19963e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 19973e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 19983e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 199917c428e23dbeac1f985d725905ce6be1c725491fEvan Cheng 20006862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner if (Result.getOpcode() == ISD::RET) { 20016862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner switch (TLI.getOperationAction(Result.getOpcode(), MVT::Other)) { 20026862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner default: assert(0 && "This action is not supported yet!"); 20036862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner case TargetLowering::Legal: break; 20046862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner case TargetLowering::Custom: 20056862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 20066862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner if (Tmp1.Val) Result = Tmp1; 20076862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner break; 20086862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner } 200917c428e23dbeac1f985d725905ce6be1c725491fEvan Cheng } 20103e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2011f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng case ISD::STORE: { 20128b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng StoreSDNode *ST = cast<StoreSDNode>(Node); 20138b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp1 = LegalizeOp(ST->getChain()); // Legalize the chain. 20148b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp2 = LegalizeOp(ST->getBasePtr()); // Legalize the pointer. 2015d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman int SVOffset = ST->getSrcValueOffset(); 2016d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman unsigned Alignment = ST->getAlignment(); 2017d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman bool isVolatile = ST->isVolatile(); 20188b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 20198b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (!ST->isTruncatingStore()) { 2020d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // Turn 'store float 1.0, Ptr' -> 'store int 0x12345678, Ptr' 2021d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // FIXME: We shouldn't do this for TargetConstantFP's. 2022d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // FIXME: move this to the DAG Combiner! Note that we can't regress due 2023d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // to phase ordering between legalized code and the dag combiner. This 2024d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // probably means that we need to integrate dag combiner and legalizer 2025d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // together. 20269e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen // We generally can't do this one for long doubles. 20272b4c279a8e203fa8b13adf7ba3a5d4c8bef70df3Chris Lattner if (ConstantFPSDNode *CFP = dyn_cast<ConstantFPSDNode>(ST->getValue())) { 20283cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner if (CFP->getValueType(0) == MVT::f32 && 20293cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner getTypeAction(MVT::i32) == Legal) { 20309d5f45607793052bf5b4436d1b43013fab9999acDale Johannesen Tmp3 = DAG.getConstant((uint32_t)CFP->getValueAPF(). 20319d5f45607793052bf5b4436d1b43013fab9999acDale Johannesen convertToAPInt().getZExtValue(), 20323f6eb7419de437436265831fce92f62498556e08Dale Johannesen MVT::i32); 20339e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 20349e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen SVOffset, isVolatile, Alignment); 20359e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen break; 20369e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen } else if (CFP->getValueType(0) == MVT::f64) { 20373cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner // If this target supports 64-bit registers, do a single 64-bit store. 20383cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner if (getTypeAction(MVT::i64) == Legal) { 20393cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Tmp3 = DAG.getConstant(CFP->getValueAPF().convertToAPInt(). 20403cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner getZExtValue(), MVT::i64); 20413cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 20423cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner SVOffset, isVolatile, Alignment); 20433cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner break; 20443cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner } else if (getTypeAction(MVT::i32) == Legal) { 20453cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner // Otherwise, if the target supports 32-bit registers, use 2 32-bit 20463cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner // stores. If the target supports neither 32- nor 64-bits, this 20473cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner // xform is certainly not worth it. 20483cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner uint64_t IntVal =CFP->getValueAPF().convertToAPInt().getZExtValue(); 20493cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner SDOperand Lo = DAG.getConstant(uint32_t(IntVal), MVT::i32); 20503cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner SDOperand Hi = DAG.getConstant(uint32_t(IntVal >>32), MVT::i32); 20513cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner if (!TLI.isLittleEndian()) std::swap(Lo, Hi); 20523cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner 20533cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Lo = DAG.getStore(Tmp1, Lo, Tmp2, ST->getSrcValue(), 20543cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner SVOffset, isVolatile, Alignment); 20553cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 20563cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner getIntPtrConstant(4)); 20573cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Hi = DAG.getStore(Tmp1, Hi, Tmp2, ST->getSrcValue(), SVOffset+4, 20583cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner isVolatile, std::max(Alignment, 4U)); 20593cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner 20603cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Result = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo, Hi); 20613cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner break; 20623cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner } 2063d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner } 2064d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner } 2065d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner 20668b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng switch (getTypeAction(ST->getStoredVT())) { 20678b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case Legal: { 20688b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = LegalizeOp(ST->getValue()); 20692efce0a589e2a688a1a06b5dc2ed0db32ae79924Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp3, Tmp2, 20708b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng ST->getOffset()); 20718b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 20728b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng MVT::ValueType VT = Tmp3.getValueType(); 20738b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng switch (TLI.getOperationAction(ISD::STORE, VT)) { 20748b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng default: assert(0 && "This action is not supported yet!"); 2075f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio case TargetLowering::Legal: 2076f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // If this is an unaligned store and the target doesn't support it, 2077f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // expand it. 2078f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (!TLI.allowsUnalignedMemoryAccesses()) { 2079f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio unsigned ABIAlignment = TLI.getTargetData()-> 2080f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio getABITypeAlignment(MVT::getTypeForValueType(ST->getStoredVT())); 2081f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (ST->getAlignment() < ABIAlignment) 2082f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Result = ExpandUnalignedStore(cast<StoreSDNode>(Result.Val), DAG, 2083f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio TLI); 2084f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 2085f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio break; 20868b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case TargetLowering::Custom: 20878b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 20888b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (Tmp1.Val) Result = Tmp1; 20898b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 20908b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case TargetLowering::Promote: 20918b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng assert(MVT::isVector(VT) && "Unknown legal promote case!"); 20928b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = DAG.getNode(ISD::BIT_CONVERT, 20938b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng TLI.getTypeToPromoteTo(ISD::STORE, VT), Tmp3); 20948b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp1, Tmp3, Tmp2, 2095d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman ST->getSrcValue(), SVOffset, isVolatile, 2096d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman Alignment); 20978b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 20988b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 20992efce0a589e2a688a1a06b5dc2ed0db32ae79924Chris Lattner break; 2100f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 21018b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case Promote: 21028b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // Truncate the value and store the result. 21038b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = PromoteOp(ST->getValue()); 21048b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 2105d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, ST->getStoredVT(), 2106d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman isVolatile, Alignment); 21078b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 210803c8546ec57523970874917854a2fb77b1ff598eChris Lattner 21098b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case Expand: 21108b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng unsigned IncrementSize = 0; 21118b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDOperand Lo, Hi; 2112c7029805ef35ce9805931067b841e6af11db382eChris Lattner 21138b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // If this is a vector type, then we have to calculate the increment as 21148b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // the product of the element size in bytes, and the number of elements 21158b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // in the high half of the vector. 21167f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (MVT::isVector(ST->getValue().getValueType())) { 21178b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDNode *InVal = ST->getValue().Val; 2118e526962fc59d38b4b0f671717df7657b8e0d8baaDale Johannesen int InIx = ST->getValue().ResNo; 2119e526962fc59d38b4b0f671717df7657b8e0d8baaDale Johannesen unsigned NumElems = MVT::getVectorNumElements(InVal->getValueType(InIx)); 2120e526962fc59d38b4b0f671717df7657b8e0d8baaDale Johannesen MVT::ValueType EVT = MVT::getVectorElementType(InVal->getValueType(InIx)); 21218b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 21227f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Figure out if there is a simple type corresponding to this Vector 2123ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // type. If so, convert to the vector type. 21248b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 21257f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (TLI.isTypeLegal(TVT)) { 2126ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // Turn this into a normal store of the vector type. 21277f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp3 = LegalizeOp(Node->getOperand(1)); 21288b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 2129d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 21308b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = LegalizeOp(Result); 21318b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 21328b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else if (NumElems == 1) { 21338b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // Turn this into a normal store of the scalar type. 21347f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp3 = ScalarizeVectorOp(Node->getOperand(1)); 21358b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 2136d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 21378b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // The scalarized value type may not be legal, e.g. it might require 21388b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // promotion or expansion. Relegalize the scalar store. 21398b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = LegalizeOp(Result); 21408b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 21418b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else { 21428b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SplitVectorOp(Node->getOperand(1), Lo, Hi); 21438b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng IncrementSize = NumElems/2 * MVT::getSizeInBits(EVT)/8; 21448b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 2145c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else { 21468b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng ExpandOp(Node->getOperand(1), Lo, Hi); 21477b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng IncrementSize = Hi.Val ? MVT::getSizeInBits(Hi.getValueType())/8 : 0; 21488b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 21498b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (!TLI.isLittleEndian()) 21508b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng std::swap(Lo, Hi); 2151c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 2152c7029805ef35ce9805931067b841e6af11db382eChris Lattner 21538b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Lo = DAG.getStore(Tmp1, Lo, Tmp2, ST->getSrcValue(), 2154d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 21557b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng 21567b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng if (Hi.Val == NULL) { 21577b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng // Must be int <-> float one-to-one expansion. 21587b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng Result = Lo; 21597b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng break; 21607b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng } 21617b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng 21628b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 21638b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng getIntPtrConstant(IncrementSize)); 21648b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng assert(isTypeLegal(Tmp2.getValueType()) && 21658b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng "Pointers must be legal!"); 2166d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset += IncrementSize; 2167d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman if (Alignment > IncrementSize) 2168d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman Alignment = IncrementSize; 21698b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Hi = DAG.getStore(Tmp1, Hi, Tmp2, ST->getSrcValue(), 2170d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 21718b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo, Hi); 21728b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 21738b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 21748b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else { 21758b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // Truncating store 21768b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng assert(isTypeLegal(ST->getValue().getValueType()) && 21778b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng "Cannot handle illegal TRUNCSTORE yet!"); 21788b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = LegalizeOp(ST->getValue()); 21798b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 21808b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // The only promote case we handle is TRUNCSTORE:i1 X into 21818b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // -> TRUNCSTORE:i8 (and X, 1) 21828b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (ST->getStoredVT() == MVT::i1 && 21838b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng TLI.getStoreXAction(MVT::i1) == TargetLowering::Promote) { 21848b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // Promote the bool to a mask then store. 21858b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = DAG.getNode(ISD::AND, Tmp3.getValueType(), Tmp3, 21868b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng DAG.getConstant(1, Tmp3.getValueType())); 21878b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 2188d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, MVT::i8, 2189d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman isVolatile, Alignment); 21908b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else if (Tmp1 != ST->getChain() || Tmp3 != ST->getValue() || 21918b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp2 != ST->getBasePtr()) { 21928b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp3, Tmp2, 21938b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng ST->getOffset()); 2194d9731af75b38f30c02f19d6e81333b9c2599ad5fChris Lattner } 2195c7029805ef35ce9805931067b841e6af11db382eChris Lattner 21968b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng MVT::ValueType StVT = cast<StoreSDNode>(Result.Val)->getStoredVT(); 21978b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng switch (TLI.getStoreXAction(StVT)) { 21988b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng default: assert(0 && "This action is not supported yet!"); 2199f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio case TargetLowering::Legal: 2200f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // If this is an unaligned store and the target doesn't support it, 2201f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // expand it. 2202f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (!TLI.allowsUnalignedMemoryAccesses()) { 2203f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio unsigned ABIAlignment = TLI.getTargetData()-> 2204f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio getABITypeAlignment(MVT::getTypeForValueType(ST->getStoredVT())); 2205f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (ST->getAlignment() < ABIAlignment) 2206f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Result = ExpandUnalignedStore(cast<StoreSDNode>(Result.Val), DAG, 2207f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio TLI); 2208f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 2209f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio break; 22108b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case TargetLowering::Custom: 22118b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 22128b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (Tmp1.Val) Result = Tmp1; 22138b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 22148b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 22153e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 22163e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2217f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 221895762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth case ISD::PCMARKER: 221995762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2220c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 222195762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth break; 2222140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case ISD::STACKSAVE: 2223140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2224c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2225c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = Result.getValue(0); 2226c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Result.getValue(1); 2227456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2228140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner switch (TLI.getOperationAction(ISD::STACKSAVE, MVT::Other)) { 2229140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner default: assert(0 && "This action is not supported yet!"); 2230456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2231456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2232c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 2233c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Tmp3.Val) { 2234c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp3); 2235c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp3.getValue(1)); 2236140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 2237456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2238140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case TargetLowering::Expand: 22394f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // Expand to CopyFromReg if the target set 22404f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // StackPointerRegisterToSaveRestore. 22414f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner if (unsigned SP = TLI.getStackPointerRegisterToSaveRestore()) { 2242c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getCopyFromReg(Result.getOperand(0), SP, 22434f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Node->getValueType(0)); 2244c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Tmp1.getValue(1); 22454f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } else { 2246c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getNode(ISD::UNDEF, Node->getValueType(0)); 2247c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Node->getOperand(0); 22484f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } 2249456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2250140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 2251456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2252456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Since stacksave produce two values, make sure to remember that we 2253456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // legalized both of them. 2254c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 2255c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 2256c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Op.ResNo ? Tmp2 : Tmp1; 2257456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2258140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case ISD::STACKRESTORE: 2259140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2260140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 2261c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2262140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner 2263140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner switch (TLI.getOperationAction(ISD::STACKRESTORE, MVT::Other)) { 2264140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner default: assert(0 && "This action is not supported yet!"); 2265456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2266456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2267456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2268456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2269140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 2270140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case TargetLowering::Expand: 22714f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // Expand to CopyToReg if the target set 22724f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // StackPointerRegisterToSaveRestore. 22734f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner if (unsigned SP = TLI.getStackPointerRegisterToSaveRestore()) { 22744f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Result = DAG.getCopyToReg(Tmp1, SP, Tmp2); 22754f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } else { 22764f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Result = Tmp1; 22774f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } 2278140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 2279140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 2280140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 2281140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner 228251b8d54922350b7e1c2cd5a5183ef2c5f5d1b1d5Andrew Lenharth case ISD::READCYCLECOUNTER: 228351b8d54922350b7e1c2cd5a5183ef2c5f5d1b1d5Andrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain 2284c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2285f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng switch (TLI.getOperationAction(ISD::READCYCLECOUNTER, 2286f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng Node->getValueType(0))) { 2287f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng default: assert(0 && "This action is not supported yet!"); 22886a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng case TargetLowering::Legal: 22896a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp1 = Result.getValue(0); 22906a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp2 = Result.getValue(1); 22916a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng break; 2292f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng case TargetLowering::Custom: 2293f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng Result = TLI.LowerOperation(Result, DAG); 22946a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp1 = LegalizeOp(Result.getValue(0)); 22956a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp2 = LegalizeOp(Result.getValue(1)); 2296f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng break; 2297f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng } 229849c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth 229949c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth // Since rdcc produce two values, make sure to remember that we legalized 230049c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth // both of them. 23016a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 23026a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 2303c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Result; 2304f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 23052ee743ff9be43c350075a2fa15d11a79bff36775Chris Lattner case ISD::SELECT: 230647e9223e06390897c3834f8c527001df392570ffChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 230747e9223e06390897c3834f8c527001df392570ffChris Lattner case Expand: assert(0 && "It's impossible to expand bools"); 230847e9223e06390897c3834f8c527001df392570ffChris Lattner case Legal: 230947e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the condition. 231047e9223e06390897c3834f8c527001df392570ffChris Lattner break; 231147e9223e06390897c3834f8c527001df392570ffChris Lattner case Promote: 231247e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); // Promote the condition. 2313b6c806045bbd4a650f90f613a96cee01a1584412Chris Lattner // Make sure the condition is either zero or one. 2314ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman if (!DAG.MaskedValueIsZero(Tmp1, 2315b6c806045bbd4a650f90f613a96cee01a1584412Chris Lattner MVT::getIntVTBitMask(Tmp1.getValueType())^1)) 2316b6c806045bbd4a650f90f613a96cee01a1584412Chris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, MVT::i1); 231747e9223e06390897c3834f8c527001df392570ffChris Lattner break; 231847e9223e06390897c3834f8c527001df392570ffChris Lattner } 23193e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // TrueVal 23202ee743ff9be43c350075a2fa15d11a79bff36775Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // FalseVal 232155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner 2322c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2323456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2324b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman switch (TLI.getOperationAction(ISD::SELECT, Tmp2.getValueType())) { 232555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action is not supported yet!"); 2326456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2327456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: { 2328456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2329456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2330456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2331456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 23329373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case TargetLowering::Expand: 23339373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman if (Tmp1.getOpcode() == ISD::SETCC) { 23349373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getSelectCC(Tmp1.getOperand(0), Tmp1.getOperand(1), 23359373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2, Tmp3, 23369373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman cast<CondCodeSDNode>(Tmp1.getOperand(2))->get()); 23379373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } else { 23389373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getSelectCC(Tmp1, 23399373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman DAG.getConstant(0, Tmp1.getValueType()), 23409373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2, Tmp3, ISD::SETNE); 23419373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 234255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 234355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Promote: { 234455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner MVT::ValueType NVT = 234555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner TLI.getTypeToPromoteTo(ISD::SELECT, Tmp2.getValueType()); 234655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner unsigned ExtOp, TruncOp; 234741f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng if (MVT::isVector(Tmp2.getValueType())) { 234841f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng ExtOp = ISD::BIT_CONVERT; 234941f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng TruncOp = ISD::BIT_CONVERT; 235041f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng } else if (MVT::isInteger(Tmp2.getValueType())) { 2351456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner ExtOp = ISD::ANY_EXTEND; 2352456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner TruncOp = ISD::TRUNCATE; 235355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } else { 2354456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner ExtOp = ISD::FP_EXTEND; 2355456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner TruncOp = ISD::FP_ROUND; 235655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 235755ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner // Promote each of the values to the new type. 235855ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Tmp2 = DAG.getNode(ExtOp, NVT, Tmp2); 235955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Tmp3 = DAG.getNode(ExtOp, NVT, Tmp3); 236055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner // Perform the larger operation, then round down. 236155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Tmp1, Tmp2,Tmp3); 236255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Result = DAG.getNode(TruncOp, Node->getValueType(0), Result); 236355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 236455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 236555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 23663e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2367750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SELECT_CC: { 2368750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = Node->getOperand(0); // LHS 2369750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(1); // RHS 23709373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); // True 23719373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp4 = LegalizeOp(Node->getOperand(3)); // False 2372750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand CC = Node->getOperand(4); 23739373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman 2374750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp1, Tmp2, CC); 2375750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2376750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we didn't get both a LHS and RHS back from LegalizeSetCCOperands, 2377750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the LHS is a legal SETCC itself. In this case, we need to compare 2378750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the result against zero to select between true and false values. 2379750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp2.Val == 0) { 2380750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getConstant(0, Tmp1.getValueType()); 2381750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CC = DAG.getCondCode(ISD::SETNE); 2382750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 2383750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4, CC); 2384750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2385750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Everything is legal, see if we should expand this op or something. 2386750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (TLI.getOperationAction(ISD::SELECT_CC, Tmp3.getValueType())) { 2387750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "This action is not supported yet!"); 2388750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case TargetLowering::Legal: break; 2389750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case TargetLowering::Custom: 2390750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = TLI.LowerOperation(Result, DAG); 2391750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp1.Val) Result = Tmp1; 23929373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 23939373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 23949373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 2395750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 23963e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SETCC: 2397750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = Node->getOperand(0); 2398750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(1); 2399750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = Node->getOperand(2); 2400750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp1, Tmp2, Tmp3); 2401750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2402750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we had to Expand the SetCC operands into a SELECT node, then it may 2403750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // not always be possible to return a true LHS & RHS. In this case, just 2404750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // return the value we legalized, returned in the LHS 2405750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp2.Val == 0) { 2406750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = Tmp1; 24073e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 24083e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 2409b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman 241073e142f2b6a3b5223de2d557d646f319ca8168cfChris Lattner switch (TLI.getOperationAction(ISD::SETCC, Tmp1.getValueType())) { 2411456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner default: assert(0 && "Cannot handle this action for SETCC yet!"); 2412456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2413456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2414456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH. 2415456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 24162b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2417456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 24182b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp4 = TLI.LowerOperation(Result, DAG); 24192b49c500838666dd0186d021389d4dd70ffda240Evan Cheng if (Tmp4.Val) Result = Tmp4; 2420456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2421b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman break; 2422ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth case TargetLowering::Promote: { 2423ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // First step, figure out the appropriate operation to use. 2424ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Allow SETCC to not be supported for all legal data types 2425ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Mostly this targets FP 2426ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth MVT::ValueType NewInTy = Node->getOperand(0).getValueType(); 242700755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner MVT::ValueType OldVT = NewInTy; OldVT = OldVT; 2428ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 2429ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Scan for the appropriate larger type to use. 2430ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth while (1) { 2431ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth NewInTy = (MVT::ValueType)(NewInTy+1); 2432ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 2433ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth assert(MVT::isInteger(NewInTy) == MVT::isInteger(OldVT) && 2434ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth "Fell off of the edge of the integer world"); 2435ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth assert(MVT::isFloatingPoint(NewInTy) == MVT::isFloatingPoint(OldVT) && 2436ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth "Fell off of the edge of the floating point world"); 2437ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 2438ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // If the target supports SETCC of this type, use it. 24391ccf26a6392034a11827aeaa0d58d025ecb2b85aChris Lattner if (TLI.isOperationLegal(ISD::SETCC, NewInTy)) 2440ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth break; 2441ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 2442ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth if (MVT::isInteger(NewInTy)) 2443ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth assert(0 && "Cannot promote Legal Integer SETCC yet"); 2444ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth else { 2445ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth Tmp1 = DAG.getNode(ISD::FP_EXTEND, NewInTy, Tmp1); 2446ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth Tmp2 = DAG.getNode(ISD::FP_EXTEND, NewInTy, Tmp2); 2447ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 2448c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp1); 2449c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp2); 24502b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2451433f8acefb78f1c8a2cf79c12b101ce7c4b20202Evan Cheng Result = LegalizeOp(Result); 24525e3efbc2ca459621400211f7370d7f121d4827d9Andrew Lenharth break; 2453ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 2454b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman case TargetLowering::Expand: 2455b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman // Expand a setcc node into a select_cc of the same condition, lhs, and 2456b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman // rhs that selects between const 1 (true) and const 0 (false). 2457b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman MVT::ValueType VT = Node->getValueType(0); 2458b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman Result = DAG.getNode(ISD::SELECT_CC, VT, Tmp1, Tmp2, 2459b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman DAG.getConstant(1, VT), DAG.getConstant(0, VT), 24602b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp3); 2461b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman break; 2462b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman } 24633e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2464e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner case ISD::MEMSET: 2465e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner case ISD::MEMCPY: 2466e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner case ISD::MEMMOVE: { 2467deb692e756cd3826e4ecc6eaec3397177c8b89ceChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Chain 2468e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Pointer 2469e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner 2470e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner if (Node->getOpcode() == ISD::MEMSET) { // memset = ubyte 2471e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner switch (getTypeAction(Node->getOperand(2).getValueType())) { 2472e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Expand: assert(0 && "Cannot expand a byte!"); 2473e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Legal: 2474deb692e756cd3826e4ecc6eaec3397177c8b89ceChris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); 2475e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 2476e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Promote: 2477deb692e756cd3826e4ecc6eaec3397177c8b89ceChris Lattner Tmp3 = PromoteOp(Node->getOperand(2)); 2478e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 2479e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } 2480e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } else { 2481edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Tmp3 = LegalizeOp(Node->getOperand(2)); // memcpy/move = pointer, 2482e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } 2483272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner 2484272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner SDOperand Tmp4; 2485272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner switch (getTypeAction(Node->getOperand(3).getValueType())) { 24866814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner case Expand: { 24876814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner // Length is too big, just take the lo-part of the length. 24886814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner SDOperand HiPart; 2489fa9aa2b424d0a7d9f7201f8fdcf5ccfa05db3a80Chris Lattner ExpandOp(Node->getOperand(3), Tmp4, HiPart); 24906814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner break; 24916814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner } 2492e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Legal: 2493e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp4 = LegalizeOp(Node->getOperand(3)); 2494e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 2495e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Promote: 2496e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp4 = PromoteOp(Node->getOperand(3)); 2497272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner break; 2498272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner } 2499272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner 2500272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner SDOperand Tmp5; 2501272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner switch (getTypeAction(Node->getOperand(4).getValueType())) { // uint 2502272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner case Expand: assert(0 && "Cannot expand this yet!"); 2503272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner case Legal: 2504272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner Tmp5 = LegalizeOp(Node->getOperand(4)); 2505272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner break; 2506272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner case Promote: 2507e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp5 = PromoteOp(Node->getOperand(4)); 2508e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 2509e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } 251055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner 25115c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola SDOperand Tmp6; 25125c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola switch (getTypeAction(Node->getOperand(5).getValueType())) { // bool 25135c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola case Expand: assert(0 && "Cannot expand this yet!"); 25145c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola case Legal: 25155c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola Tmp6 = LegalizeOp(Node->getOperand(5)); 25165c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola break; 25175c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola case Promote: 25185c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola Tmp6 = PromoteOp(Node->getOperand(5)); 25195c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola break; 25205c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola } 25215c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola 252255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), MVT::Other)) { 252355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action not implemented for this operation!"); 2524456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2525456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2526456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 25275c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola case TargetLowering::Legal: { 25285c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola SDOperand Ops[] = { Tmp1, Tmp2, Tmp3, Tmp4, Tmp5, Tmp6 }; 25295c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola Result = DAG.UpdateNodeOperands(Result, Ops, 6); 2530456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2531456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2532456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2533456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 253455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 25355c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola } 253655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Expand: { 2537e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner // Otherwise, the target does not support this operation. Lower the 2538e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner // operation to an explicit libcall as appropriate. 2539e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner MVT::ValueType IntPtr = TLI.getPointerTy(); 2540a69571c7991813c93cba64e88eced6899ce93d81Owen Anderson const Type *IntPtrTy = TLI.getTargetData()->getIntPtrType(); 254147857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TargetLowering::ArgListTy Args; 254247857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TargetLowering::ArgListEntry Entry; 2543e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner 25443bfbf4ea990930d153e58e153f319408341a94feReid Spencer const char *FnName = 0; 2545e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner if (Node->getOpcode() == ISD::MEMSET) { 2546d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov Entry.Node = Tmp2; Entry.Ty = IntPtrTy; 254747857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Args.push_back(Entry); 2548dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner // Extend the (previously legalized) ubyte argument to be an int value 2549dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner // for the call. 2550dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner if (Tmp3.getValueType() > MVT::i32) 2551dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner Tmp3 = DAG.getNode(ISD::TRUNCATE, MVT::i32, Tmp3); 2552dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner else 2553dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner Tmp3 = DAG.getNode(ISD::ZERO_EXTEND, MVT::i32, Tmp3); 2554d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov Entry.Node = Tmp3; Entry.Ty = Type::Int32Ty; Entry.isSExt = true; 255547857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Args.push_back(Entry); 2556d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov Entry.Node = Tmp4; Entry.Ty = IntPtrTy; Entry.isSExt = false; 255747857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Args.push_back(Entry); 2558e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner 2559e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner FnName = "memset"; 2560e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } else if (Node->getOpcode() == ISD::MEMCPY || 2561e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner Node->getOpcode() == ISD::MEMMOVE) { 2562b25fe8267182662750dcb76a70a20f4b14a5568dAnton Korobeynikov Entry.Ty = IntPtrTy; 2563b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer Entry.Node = Tmp2; Args.push_back(Entry); 2564b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer Entry.Node = Tmp3; Args.push_back(Entry); 2565b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer Entry.Node = Tmp4; Args.push_back(Entry); 2566e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner FnName = Node->getOpcode() == ISD::MEMMOVE ? "memmove" : "memcpy"; 2567e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } else { 2568e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner assert(0 && "Unknown op!"); 2569e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } 257045982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner 2571e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner std::pair<SDOperand,SDOperand> CallResult = 257247857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TLI.LowerCallTo(Tmp1, Type::VoidTy, false, false, CallingConv::C, false, 2573e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner DAG.getExternalSymbol(FnName, IntPtr), Args, DAG); 2574456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = CallResult.second; 257555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 257655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 2577e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } 2578e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner break; 2579e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } 258052d08bd9d8a8dcc06148525c7fad6f2ebcad0a42Chris Lattner 25815b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SHL_PARTS: 25825b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SRA_PARTS: 25835b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SRL_PARTS: { 2584f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 258584f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner bool Changed = false; 258684f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 258784f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 258884f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner Changed |= Ops.back() != Node->getOperand(i); 258984f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner } 2590c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Changed) 2591f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 25922c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 259305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), 259405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Node->getValueType(0))) { 259505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng default: assert(0 && "This action is not supported yet!"); 2596456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2597456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2598456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2599456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) { 2600456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand Tmp2, RetVal(0, 0); 260105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) { 2602456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = LegalizeOp(Tmp1.getValue(i)); 260305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng AddLegalizedOperand(SDOperand(Node, i), Tmp2); 260405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if (i == Op.ResNo) 260512f2274ba8c6af21e8b6c71ef872afe43a64b6d7Evan Cheng RetVal = Tmp2; 260605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 2607269f8c069105e13f3845a8dbc7796ac9a15dc882Chris Lattner assert(RetVal.Val && "Illegal result number"); 260805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng return RetVal; 260905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 261005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng break; 261105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 261205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 26132c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Since these produce multiple values, make sure to remember that we 26142c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // legalized all of them. 26152c8086f4b9916b2d02842be5e375276023225fbaChris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 26162c8086f4b9916b2d02842be5e375276023225fbaChris Lattner AddLegalizedOperand(SDOperand(Node, i), Result.getValue(i)); 26172c8086f4b9916b2d02842be5e375276023225fbaChris Lattner return Result.getValue(Op.ResNo); 261884f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner } 26192c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 26202c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Binary operators 26213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ADD: 26223e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SUB: 26233e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::MUL: 2624c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MULHS: 2625c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MULHU: 26263e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::UDIV: 26273e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SDIV: 26283e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::AND: 26293e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::OR: 26303e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::XOR: 263103c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SHL: 263203c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SRL: 263303c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SRA: 263401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FADD: 263501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FSUB: 263601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FMUL: 263701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FDIV: 2638826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FPOW: 26393e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 2640f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth switch (getTypeAction(Node->getOperand(1).getValueType())) { 2641f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Expand: assert(0 && "Not possible"); 2642f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Legal: 2643f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the RHS. 2644f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth break; 2645f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Promote: 2646f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the RHS. 2647f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth break; 2648f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth } 2649c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 2650c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2651456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2652e8f65f1e62ea1d4f2ca9fd0137ae2e0ce20e26e1Andrew Lenharth switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2653bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner default: assert(0 && "BinOp legalize operation not supported"); 2654456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2655456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2656456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2657456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 265857030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth break; 2659bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner case TargetLowering::Expand: { 2660525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman MVT::ValueType VT = Op.getValueType(); 2661525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman 2662525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // See if multiply or divide can be lowered using two-result operations. 2663525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman SDVTList VTs = DAG.getVTList(VT, VT); 2664525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::MUL) { 2665525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // We just need the low half of the multiply; try both the signed 2666525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // and unsigned forms. If the target supports both SMUL_LOHI and 2667525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // UMUL_LOHI, form a preference by checking which forms of plain 2668525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // MULH it supports. 2669525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasSMUL_LOHI = TLI.isOperationLegal(ISD::SMUL_LOHI, VT); 2670525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasUMUL_LOHI = TLI.isOperationLegal(ISD::UMUL_LOHI, VT); 2671525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasMULHS = TLI.isOperationLegal(ISD::MULHS, VT); 2672525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasMULHU = TLI.isOperationLegal(ISD::MULHU, VT); 2673525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman unsigned OpToUse = 0; 2674525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasSMUL_LOHI && !HasMULHS) { 2675525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman OpToUse = ISD::SMUL_LOHI; 2676525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } else if (HasUMUL_LOHI && !HasMULHU) { 2677525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman OpToUse = ISD::UMUL_LOHI; 2678525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } else if (HasSMUL_LOHI) { 2679525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman OpToUse = ISD::SMUL_LOHI; 2680525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } else if (HasUMUL_LOHI) { 2681525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman OpToUse = ISD::UMUL_LOHI; 2682525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 2683525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (OpToUse) { 2684525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = SDOperand(DAG.getNode(OpToUse, VTs, Tmp1, Tmp2).Val, 0); 2685525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 2686525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 2687525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 2688525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::MULHS && 2689525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::SMUL_LOHI, VT)) { 2690525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = SDOperand(DAG.getNode(ISD::SMUL_LOHI, VTs, Tmp1, Tmp2).Val, 1); 2691525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 2692525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 2693525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::MULHU && 2694525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::UMUL_LOHI, VT)) { 2695525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = SDOperand(DAG.getNode(ISD::UMUL_LOHI, VTs, Tmp1, Tmp2).Val, 1); 2696525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 2697525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 2698525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::SDIV && 2699525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::SDIVREM, VT)) { 2700525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = SDOperand(DAG.getNode(ISD::SDIVREM, VTs, Tmp1, Tmp2).Val, 0); 2701525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 2702525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 2703525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::UDIV && 2704525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::UDIVREM, VT)) { 2705525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = SDOperand(DAG.getNode(ISD::UDIVREM, VTs, Tmp1, Tmp2).Val, 0); 2706525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 2707525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 2708525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman 2709826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // Check to see if we have a libcall for this operator. 2710826695281344e3a4c4d44d73dd155107aafd689bDan Gohman RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 2711826695281344e3a4c4d44d73dd155107aafd689bDan Gohman bool isSigned = false; 2712826695281344e3a4c4d44d73dd155107aafd689bDan Gohman switch (Node->getOpcode()) { 2713826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::UDIV: 2714826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::SDIV: 2715826695281344e3a4c4d44d73dd155107aafd689bDan Gohman if (VT == MVT::i32) { 2716826695281344e3a4c4d44d73dd155107aafd689bDan Gohman LC = Node->getOpcode() == ISD::UDIV 271756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::UDIV_I32 : RTLIB::SDIV_I32; 2718826695281344e3a4c4d44d73dd155107aafd689bDan Gohman isSigned = Node->getOpcode() == ISD::SDIV; 2719826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 2720826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 2721826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FPOW: 2722826695281344e3a4c4d44d73dd155107aafd689bDan Gohman LC = VT == MVT::f32 ? RTLIB::POW_F32 : 2723826695281344e3a4c4d44d73dd155107aafd689bDan Gohman VT == MVT::f64 ? RTLIB::POW_F64 : 2724826695281344e3a4c4d44d73dd155107aafd689bDan Gohman VT == MVT::f80 ? RTLIB::POW_F80 : 2725826695281344e3a4c4d44d73dd155107aafd689bDan Gohman VT == MVT::ppcf128 ? RTLIB::POW_PPCF128 : 2726826695281344e3a4c4d44d73dd155107aafd689bDan Gohman RTLIB::UNKNOWN_LIBCALL; 2727826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 2728826695281344e3a4c4d44d73dd155107aafd689bDan Gohman default: break; 2729826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 2730826695281344e3a4c4d44d73dd155107aafd689bDan Gohman if (LC != RTLIB::UNKNOWN_LIBCALL) { 2731826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SDOperand Dummy; 2732826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Result = ExpandLibCall(TLI.getLibcallName(LC), Node, isSigned, Dummy); 273352cc1ea2a1a374b58801398460a6289723089d91Evan Cheng break; 273452cc1ea2a1a374b58801398460a6289723089d91Evan Cheng } 273552cc1ea2a1a374b58801398460a6289723089d91Evan Cheng 2736bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner assert(MVT::isVector(Node->getValueType(0)) && 2737bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner "Cannot expand this binary operator!"); 2738bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner // Expand the operation into a bunch of nasty scalar code. 2739826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Result = LegalizeOp(UnrollVectorOp(Op)); 2740bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner break; 2741bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner } 2742cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case TargetLowering::Promote: { 2743cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng switch (Node->getOpcode()) { 2744cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng default: assert(0 && "Do not know how to promote this BinOp!"); 2745cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case ISD::AND: 2746cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case ISD::OR: 2747cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case ISD::XOR: { 2748cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng MVT::ValueType OVT = Node->getValueType(0); 2749cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 2750cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng assert(MVT::isVector(OVT) && "Cannot promote this BinOp!"); 2751cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng // Bit convert each of the values to the new type. 2752cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Tmp1 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp1); 2753cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Tmp2 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp2); 2754cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 2755cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng // Bit convert the result back the original type. 2756cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Result = DAG.getNode(ISD::BIT_CONVERT, OVT, Result); 2757cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng break; 2758cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng } 2759cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng } 2760cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng } 2761e8f65f1e62ea1d4f2ca9fd0137ae2e0ce20e26e1Andrew Lenharth } 27623e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2763a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 2764e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman case ISD::SMUL_LOHI: 2765e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman case ISD::UMUL_LOHI: 2766e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman case ISD::SDIVREM: 2767e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman case ISD::UDIVREM: 2768e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman // These nodes will only be produced by target-specific lowering, so 2769e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman // they shouldn't be here if they aren't legal. 2770a7c97a7f5b82778ca5abfc3791c6b7f96b82a5faDuncan Sands assert(TLI.isOperationLegal(Node->getOpcode(), Node->getValueType(0)) && 2771e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman "This must be legal!"); 2772525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman 2773525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 2774525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS 2775525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2776e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman break; 2777e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman 2778a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case ISD::FCOPYSIGN: // FCOPYSIGN does not require LHS/RHS to match type! 2779a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 2780a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner switch (getTypeAction(Node->getOperand(1).getValueType())) { 2781a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Expand: assert(0 && "Not possible"); 2782a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Legal: 2783a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the RHS. 2784a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 2785a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Promote: 2786a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the RHS. 2787a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 2788a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner } 2789a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 2790a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2791a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 2792a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2793a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner default: assert(0 && "Operation not supported"); 2794a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case TargetLowering::Custom: 2795a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2796a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner if (Tmp1.Val) Result = Tmp1; 27978f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner break; 2798a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case TargetLowering::Legal: break; 2799912095becac923ff614d7b07728eb345ada67765Evan Cheng case TargetLowering::Expand: { 2800636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng // If this target supports fabs/fneg natively and select is cheap, 2801636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng // do this efficiently. 2802636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng if (!TLI.isSelectExpensive() && 2803636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng TLI.getOperationAction(ISD::FABS, Tmp1.getValueType()) == 2804636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng TargetLowering::Legal && 2805912095becac923ff614d7b07728eb345ada67765Evan Cheng TLI.getOperationAction(ISD::FNEG, Tmp1.getValueType()) == 2806636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng TargetLowering::Legal) { 28078f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Get the sign bit of the RHS. 28088f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner MVT::ValueType IVT = 28098f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Tmp2.getValueType() == MVT::f32 ? MVT::i32 : MVT::i64; 28108f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SDOperand SignBit = DAG.getNode(ISD::BIT_CONVERT, IVT, Tmp2); 28118f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SignBit = DAG.getSetCC(TLI.getSetCCResultTy(), 28128f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SignBit, DAG.getConstant(0, IVT), ISD::SETLT); 28138f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Get the absolute value of the result. 28148f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SDOperand AbsVal = DAG.getNode(ISD::FABS, Tmp1.getValueType(), Tmp1); 28158f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Select between the nabs and abs value based on the sign bit of 28168f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // the input. 28178f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Result = DAG.getNode(ISD::SELECT, AbsVal.getValueType(), SignBit, 28188f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner DAG.getNode(ISD::FNEG, AbsVal.getValueType(), 28198f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner AbsVal), 28208f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner AbsVal); 28218f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Result = LegalizeOp(Result); 28228f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner break; 28238f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner } 28248f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner 28258f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Otherwise, do bitwise ops! 2826912095becac923ff614d7b07728eb345ada67765Evan Cheng MVT::ValueType NVT = 2827912095becac923ff614d7b07728eb345ada67765Evan Cheng Node->getValueType(0) == MVT::f32 ? MVT::i32 : MVT::i64; 2828912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = ExpandFCOPYSIGNToBitwiseOps(Node, NVT, DAG, TLI); 2829912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), Result); 2830912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = LegalizeOp(Result); 2831a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 2832a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner } 2833912095becac923ff614d7b07728eb345ada67765Evan Cheng } 2834a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 2835a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 2836551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::ADDC: 2837551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::SUBC: 2838551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); 2839551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); 2840551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2841551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // Since this produces two values, make sure to remember that we legalized 2842551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // both of them. 2843551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 2844551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 2845551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman return Result; 2846edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 2847551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::ADDE: 2848551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::SUBE: 2849551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); 2850551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); 2851551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); 2852551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2853551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // Since this produces two values, make sure to remember that we legalized 2854551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // both of them. 2855551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 2856551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 2857551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman return Result; 2858551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman 2859419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case ISD::BUILD_PAIR: { 2860419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman MVT::ValueType PairTy = Node->getValueType(0); 2861419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman // TODO: handle the case where the Lo and Hi operands are not of legal type 2862419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Lo 2863419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Hi 2864419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman switch (TLI.getOperationAction(ISD::BUILD_PAIR, PairTy)) { 2865456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 2866456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2867456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner assert(0 && "Cannot promote/custom this yet!"); 2868419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case TargetLowering::Legal: 2869419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman if (Tmp1 != Node->getOperand(0) || Tmp2 != Node->getOperand(1)) 2870419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Result = DAG.getNode(ISD::BUILD_PAIR, PairTy, Tmp1, Tmp2); 2871419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 2872419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case TargetLowering::Expand: 2873419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, PairTy, Tmp1); 2874419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = DAG.getNode(ISD::ANY_EXTEND, PairTy, Tmp2); 2875419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = DAG.getNode(ISD::SHL, PairTy, Tmp2, 2876419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman DAG.getConstant(MVT::getSizeInBits(PairTy)/2, 2877419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman TLI.getShiftAmountTy())); 2878456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::OR, PairTy, Tmp1, Tmp2); 2879419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 2880419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman } 2881419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 2882419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman } 2883419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman 2884c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman case ISD::UREM: 2885c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman case ISD::SREM: 288601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FREM: 2887c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 2888c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS 2889456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2890c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2891456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: assert(0 && "Cannot promote this yet!"); 2892456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2893456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2894456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 289557030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth case TargetLowering::Legal: 2896c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2897456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2898456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2899456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2900456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 290157030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth break; 2902525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman case TargetLowering::Expand: { 29036b5578f052c2405c0d622192ccacfd47563c99a8Evan Cheng unsigned DivOpc= (Node->getOpcode() == ISD::UREM) ? ISD::UDIV : ISD::SDIV; 290447857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer bool isSigned = DivOpc == ISD::SDIV; 2905525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman MVT::ValueType VT = Node->getValueType(0); 2906525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman 2907525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // See if remainder can be lowered using two-result operations. 2908525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman SDVTList VTs = DAG.getVTList(VT, VT); 2909525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::SREM && 2910525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::SDIVREM, VT)) { 2911525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = SDOperand(DAG.getNode(ISD::SDIVREM, VTs, Tmp1, Tmp2).Val, 1); 2912525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 2913525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 2914525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::UREM && 2915525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::UDIVREM, VT)) { 2916525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = SDOperand(DAG.getNode(ISD::UDIVREM, VTs, Tmp1, Tmp2).Val, 1); 2917525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 2918525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 2919525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman 2920525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (MVT::isInteger(VT)) { 2921525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (TLI.getOperationAction(DivOpc, VT) == 292252cc1ea2a1a374b58801398460a6289723089d91Evan Cheng TargetLowering::Legal) { 292352cc1ea2a1a374b58801398460a6289723089d91Evan Cheng // X % Y -> X-X/Y*Y 29246b5578f052c2405c0d622192ccacfd47563c99a8Evan Cheng Result = DAG.getNode(DivOpc, VT, Tmp1, Tmp2); 292552cc1ea2a1a374b58801398460a6289723089d91Evan Cheng Result = DAG.getNode(ISD::MUL, VT, Result, Tmp2); 292652cc1ea2a1a374b58801398460a6289723089d91Evan Cheng Result = DAG.getNode(ISD::SUB, VT, Tmp1, Result); 292752cc1ea2a1a374b58801398460a6289723089d91Evan Cheng } else { 2928525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman assert(VT == MVT::i32 && 292952cc1ea2a1a374b58801398460a6289723089d91Evan Cheng "Cannot expand this binary operator!"); 293056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = Node->getOpcode() == ISD::UREM 293156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::UREM_I32 : RTLIB::SREM_I32; 293252cc1ea2a1a374b58801398460a6289723089d91Evan Cheng SDOperand Dummy; 293356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, isSigned, Dummy); 293452cc1ea2a1a374b58801398460a6289723089d91Evan Cheng } 29354c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner } else { 29364c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner // Floating point mod -> fmod libcall. 2937525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman RTLIB::Libcall LC = VT == MVT::f32 293856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::REM_F32 : RTLIB::REM_F64; 29394c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner SDOperand Dummy; 294056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, 294156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Dummy); 2942c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman } 2943c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman break; 2944c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman } 2945525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 2946c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman break; 2947acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAARG: { 2948acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2949acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 2950acc398c195a697795bff3245943d104eb19192b9Nate Begeman 29515c62f337fe846247f5e72acb32844e24b4f18b71Chris Lattner MVT::ValueType VT = Node->getValueType(0); 2952acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), MVT::Other)) { 2953acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 2954456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2955456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2956456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 2957acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 2958c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 2959c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = Result.getValue(0); 2960456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Result.getValue(1); 2961456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2962456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2963456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = TLI.LowerOperation(Result, DAG); 2964456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp2.Val) { 2965456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Tmp2); 2966456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Tmp2.getValue(1)); 2967456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2968456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2969acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2970acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: { 2971466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SrcValueSDNode *SV = cast<SrcValueSDNode>(Node->getOperand(2)); 2972acc398c195a697795bff3245943d104eb19192b9Nate Begeman SDOperand VAList = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp2, 2973466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SV->getValue(), SV->getOffset()); 2974acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Increment the pointer, VAList, to the next vaarg 2975acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp3 = DAG.getNode(ISD::ADD, TLI.getPointerTy(), VAList, 2976acc398c195a697795bff3245943d104eb19192b9Nate Begeman DAG.getConstant(MVT::getSizeInBits(VT)/8, 2977acc398c195a697795bff3245943d104eb19192b9Nate Begeman TLI.getPointerTy())); 2978acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Store the incremented VAList to the legalized pointer 29798b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = DAG.getStore(VAList.getValue(1), Tmp3, Tmp2, SV->getValue(), 29808b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SV->getOffset()); 2981acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Load the actual argument out of the pointer VAList 2982466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getLoad(VT, Tmp3, VAList, NULL, 0); 2983456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Result.getValue(1)); 2984acc398c195a697795bff3245943d104eb19192b9Nate Begeman Result = LegalizeOp(Result); 2985acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2986acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2987acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2988acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Since VAARG produces two values, make sure to remember that we 2989acc398c195a697795bff3245943d104eb19192b9Nate Begeman // legalized both of them. 2990acc398c195a697795bff3245943d104eb19192b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result); 2991456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp1); 2992456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner return Op.ResNo ? Tmp1 : Result; 2993acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2994acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2995acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VACOPY: 2996acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2997acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the dest pointer. 2998acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the source pointer. 2999acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3000acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VACOPY, MVT::Other)) { 3001acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 3002456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3003456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3004456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 3005acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 3006c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, 3007c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Node->getOperand(3), Node->getOperand(4)); 3008456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3009456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3010456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3011456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3012acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3013acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: 3014acc398c195a697795bff3245943d104eb19192b9Nate Begeman // This defaults to loading a pointer from the input and storing it to the 3015acc398c195a697795bff3245943d104eb19192b9Nate Begeman // output, returning the chain. 3016466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SrcValueSDNode *SVD = cast<SrcValueSDNode>(Node->getOperand(3)); 30178b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SrcValueSDNode *SVS = cast<SrcValueSDNode>(Node->getOperand(4)); 3018466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp4 = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp3, SVD->getValue(), 3019466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SVD->getOffset()); 30208b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp4.getValue(1), Tmp4, Tmp2, SVS->getValue(), 30218b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SVS->getOffset()); 3022acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3023acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3024acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3025acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3026acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAEND: 3027acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 3028acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 3029acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3030acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VAEND, MVT::Other)) { 3031acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 3032456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3033456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3034456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 3035acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 3036c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 3037456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3038456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Tmp1, DAG); 3039456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3040456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3041acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3042acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: 3043acc398c195a697795bff3245943d104eb19192b9Nate Begeman Result = Tmp1; // Default to a no-op, return the chain 3044acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3045acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3046acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3047acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3048acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VASTART: 3049acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 3050acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 3051acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3052c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 3053c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 3054acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VASTART, MVT::Other)) { 3055acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 3056456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 3057456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3058456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3059456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3060acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3061acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3062acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3063acc398c195a697795bff3245943d104eb19192b9Nate Begeman 306435ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman case ISD::ROTL: 306535ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman case ISD::ROTR: 306635ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 306735ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS 3068c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 3069c9dc11457809b6641de853af2261721a97ad1f26Scott Michel switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3070c9dc11457809b6641de853af2261721a97ad1f26Scott Michel default: 3071c9dc11457809b6641de853af2261721a97ad1f26Scott Michel assert(0 && "ROTL/ROTR legalize operation not supported"); 3072c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 3073c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Legal: 3074c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 3075c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Custom: 3076c9dc11457809b6641de853af2261721a97ad1f26Scott Michel Tmp1 = TLI.LowerOperation(Result, DAG); 3077c9dc11457809b6641de853af2261721a97ad1f26Scott Michel if (Tmp1.Val) Result = Tmp1; 3078c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 3079c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Promote: 3080c9dc11457809b6641de853af2261721a97ad1f26Scott Michel assert(0 && "Do not know how to promote ROTL/ROTR"); 3081c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 3082c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Expand: 3083c9dc11457809b6641de853af2261721a97ad1f26Scott Michel assert(0 && "Do not know how to expand ROTL/ROTR"); 3084c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 3085c9dc11457809b6641de853af2261721a97ad1f26Scott Michel } 308635ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman break; 308735ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman 3088d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: 3089d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Op 3090d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3091456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3092456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner assert(0 && "Cannot custom legalize this yet!"); 3093456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 3094c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3095456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3096456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: { 3097456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner MVT::ValueType OVT = Tmp1.getValueType(); 3098456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 3099b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman unsigned DiffBits = MVT::getSizeInBits(NVT) - MVT::getSizeInBits(OVT); 3100456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 3101456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 3102456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::BSWAP, NVT, Tmp1); 3103456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRL, NVT, Tmp1, 3104456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner DAG.getConstant(DiffBits, TLI.getShiftAmountTy())); 3105456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3106456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3107456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Expand: 3108456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = ExpandBSWAP(Tmp1); 3109456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3110d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman } 3111d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 3112d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman 3113691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTPOP: 3114691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTTZ: 3115691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTLZ: 3116691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Op 3117691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3118910b66d8d6fd8a27dcdea74431e3ea20c69b7db5Scott Michel case TargetLowering::Custom: 3119691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Legal: 3120c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3121910b66d8d6fd8a27dcdea74431e3ea20c69b7db5Scott Michel if (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0)) == 3122335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel TargetLowering::Custom) { 3123335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel Tmp1 = TLI.LowerOperation(Result, DAG); 3124335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel if (Tmp1.Val) { 3125335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel Result = Tmp1; 3126335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel } 3127910b66d8d6fd8a27dcdea74431e3ea20c69b7db5Scott Michel } 3128691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3129691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Promote: { 3130691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth MVT::ValueType OVT = Tmp1.getValueType(); 3131691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 3132edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 3133edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner // Zero extend the argument. 3134691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 3135691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth // Perform the larger operation, then subtract if needed. 3136691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = DAG.getNode(Node->getOpcode(), Node->getValueType(0), Tmp1); 3137456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch (Node->getOpcode()) { 3138691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTPOP: 3139691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Result = Tmp1; 3140691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3141691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTTZ: 3142691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth //if Tmp1 == sizeinbits(NVT) then Tmp1 = sizeinbits(Old VT) 31437cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), Tmp1, 3144b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(NVT), NVT), 31457cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETEQ); 314600b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SELECT, NVT, Tmp2, 3147910b66d8d6fd8a27dcdea74431e3ea20c69b7db5Scott Michel DAG.getConstant(MVT::getSizeInBits(OVT),NVT), Tmp1); 3148691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3149691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTLZ: 3150456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Tmp1 = Tmp1 - (sizeinbits(NVT) - sizeinbits(Old VT)) 315100b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SUB, NVT, Tmp1, 3152b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(NVT) - 3153b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman MVT::getSizeInBits(OVT), NVT)); 3154691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3155691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 3156691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3157691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 3158691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Expand: 3159456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = ExpandBitCount(Node->getOpcode(), Tmp1); 3160691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3161691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 3162691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 316300b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen 31642c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Unary operators 31652c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FABS: 31662c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FNEG: 3167da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSQRT: 3168da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSIN: 3169da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FCOS: 31702c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 31712c8086f4b9916b2d02842be5e375276023225fbaChris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3172456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 3173456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 317459ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng isCustom = true; 317559ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng // FALLTHROUGH 31762c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case TargetLowering::Legal: 3177c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 317859ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng if (isCustom) { 317959ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 318059ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng if (Tmp1.Val) Result = Tmp1; 318159ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng } 31822c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 31832c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case TargetLowering::Expand: 3184456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch (Node->getOpcode()) { 3185456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner default: assert(0 && "Unreachable!"); 3186456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case ISD::FNEG: 31872c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Expand Y = FNEG(X) -> Y = SUB -0.0, X 31882c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp2 = DAG.getConstantFP(-0.0, Node->getValueType(0)); 3189456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::FSUB, Node->getValueType(0), Tmp2, Tmp1); 3190f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 3191f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FABS: { 31924af6e0d7836126630f579b0a34f054321187f00bChris Lattner // Expand Y = FABS(X) -> Y = (X >u 0.0) ? X : fneg(X). 31934af6e0d7836126630f579b0a34f054321187f00bChris Lattner MVT::ValueType VT = Node->getValueType(0); 31944af6e0d7836126630f579b0a34f054321187f00bChris Lattner Tmp2 = DAG.getConstantFP(0.0, VT); 31957cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), Tmp1, Tmp2, ISD::SETUGT); 31964af6e0d7836126630f579b0a34f054321187f00bChris Lattner Tmp3 = DAG.getNode(ISD::FNEG, VT, Tmp1); 31974af6e0d7836126630f579b0a34f054321187f00bChris Lattner Result = DAG.getNode(ISD::SELECT, VT, Tmp2, Tmp1, Tmp3); 3198f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 3199f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 3200f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FSQRT: 3201f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FSIN: 3202f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FCOS: { 3203f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner MVT::ValueType VT = Node->getValueType(0); 3204826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 3205826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // Expand unsupported unary vector operators by unrolling them. 3206826695281344e3a4c4d44d73dd155107aafd689bDan Gohman if (MVT::isVector(VT)) { 3207826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Result = LegalizeOp(UnrollVectorOp(Op)); 3208826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 3209826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 3210826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 321156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 3212f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner switch(Node->getOpcode()) { 321356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSQRT: 3214317096ab3710fda0960be58804e9f80c800340f6Dale Johannesen LC = VT == MVT::f32 ? RTLIB::SQRT_F32 : 3215161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen VT == MVT::f64 ? RTLIB::SQRT_F64 : 3216161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen VT == MVT::f80 ? RTLIB::SQRT_F80 : 3217161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen VT == MVT::ppcf128 ? RTLIB::SQRT_PPCF128 : 3218161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen RTLIB::UNKNOWN_LIBCALL; 321956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 322056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSIN: 322156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = VT == MVT::f32 ? RTLIB::SIN_F32 : RTLIB::SIN_F64; 322256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 322356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FCOS: 322456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = VT == MVT::f32 ? RTLIB::COS_F32 : RTLIB::COS_F64; 322556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 3226f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner default: assert(0 && "Unreachable!"); 3227f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 32282ac4fc032050ff1e0f06bd8e27126e979406effbNate Begeman SDOperand Dummy; 322956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, 323056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Dummy); 3231f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 3232f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 32332c8086f4b9916b2d02842be5e375276023225fbaChris Lattner } 32342c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 32352c8086f4b9916b2d02842be5e375276023225fbaChris Lattner } 32362c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 32376ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner case ISD::FPOWI: { 3238826695281344e3a4c4d44d73dd155107aafd689bDan Gohman MVT::ValueType VT = Node->getValueType(0); 3239826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 3240826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // Expand unsupported unary vector operators by unrolling them. 3241826695281344e3a4c4d44d73dd155107aafd689bDan Gohman if (MVT::isVector(VT)) { 3242826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Result = LegalizeOp(UnrollVectorOp(Op)); 3243826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 3244826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 3245826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 3246826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // We always lower FPOWI into a libcall. No target support for it yet. 3247317096ab3710fda0960be58804e9f80c800340f6Dale Johannesen RTLIB::Libcall LC = 3248826695281344e3a4c4d44d73dd155107aafd689bDan Gohman VT == MVT::f32 ? RTLIB::POWI_F32 : 3249826695281344e3a4c4d44d73dd155107aafd689bDan Gohman VT == MVT::f64 ? RTLIB::POWI_F64 : 3250826695281344e3a4c4d44d73dd155107aafd689bDan Gohman VT == MVT::f80 ? RTLIB::POWI_F80 : 3251826695281344e3a4c4d44d73dd155107aafd689bDan Gohman VT == MVT::ppcf128 ? RTLIB::POWI_PPCF128 : 3252161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen RTLIB::UNKNOWN_LIBCALL; 32536ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner SDOperand Dummy; 325456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, 325556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Dummy); 32566ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner break; 32576ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner } 325835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: 325967993f7b974cd17e4372a6b7b9f9cad5ed174df1Chris Lattner if (!isTypeLegal(Node->getOperand(0).getValueType())) { 326035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = ExpandBIT_CONVERT(Node->getValueType(0), Node->getOperand(0)); 32617f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else if (MVT::isVector(Op.getOperand(0).getValueType())) { 32627f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // The input has to be a vector type, we have to either scalarize it, pack 32637f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // it, or convert it based on whether the input vector type is legal. 32647f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDNode *InVal = Node->getOperand(0).Val; 3265e526962fc59d38b4b0f671717df7657b8e0d8baaDale Johannesen int InIx = Node->getOperand(0).ResNo; 3266e526962fc59d38b4b0f671717df7657b8e0d8baaDale Johannesen unsigned NumElems = MVT::getVectorNumElements(InVal->getValueType(InIx)); 3267e526962fc59d38b4b0f671717df7657b8e0d8baaDale Johannesen MVT::ValueType EVT = MVT::getVectorElementType(InVal->getValueType(InIx)); 32687f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 32697f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Figure out if there is a simple type corresponding to this Vector 32707f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // type. If so, convert to the vector type. 32717f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 32727f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (TLI.isTypeLegal(TVT)) { 327307a96765daedf180a7102d39fe56c499878312b7Dan Gohman // Turn this into a bit convert of the vector input. 32747f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), 32757f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman LegalizeOp(Node->getOperand(0))); 32767f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 32777f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else if (NumElems == 1) { 32787f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Turn this into a bit convert of the scalar input. 32797f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), 32807f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Node->getOperand(0))); 32817f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 32827f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else { 32837f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // FIXME: UNIMP! Store then reload 32847f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(0 && "Cast from unsupported vector type not implemented yet!"); 32857f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 328667993f7b974cd17e4372a6b7b9f9cad5ed174df1Chris Lattner } else { 328735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner switch (TLI.getOperationAction(ISD::BIT_CONVERT, 328835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Node->getOperand(0).getValueType())) { 328935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner default: assert(0 && "Unknown operation action!"); 329035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case TargetLowering::Expand: 329135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = ExpandBIT_CONVERT(Node->getValueType(0), Node->getOperand(0)); 329235481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 329335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case TargetLowering::Legal: 329435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3295c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 329635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 329735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 329835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 329935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 3300d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner 33012c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Conversion operators. The source and destination have different types. 3302fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::SINT_TO_FP: 3303fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::UINT_TO_FP: { 3304fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner bool isSigned = Node->getOpcode() == ISD::SINT_TO_FP; 3305fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3306fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 3307d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen switch (TLI.getOperationAction(Node->getOpcode(), 3308fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getOperand(0).getValueType())) { 3309fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner default: assert(0 && "Unknown operation action!"); 3310456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3311456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3312456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 3313456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 3314456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3315c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3316456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3317456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3318456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3319456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3320456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3321fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case TargetLowering::Expand: 33226269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey Result = ExpandLegalINT_TO_FP(isSigned, 33236269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey LegalizeOp(Node->getOperand(0)), 33246269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey Node->getValueType(0)); 3325456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3326fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case TargetLowering::Promote: 3327fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = PromoteLegalINT_TO_FP(LegalizeOp(Node->getOperand(0)), 3328fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getValueType(0), 3329fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner isSigned); 3330fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 33315b5b8c27556e5dc8792e37436e4ddd7ab157192dAndrew Lenharth } 3332fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3333fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Expand: 3334fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, 3335fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getValueType(0), Node->getOperand(0)); 3336fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3337fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 3338c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3339fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner if (isSigned) { 3340c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, Tmp1.getValueType(), 3341c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1, DAG.getValueType(Node->getOperand(0).getValueType())); 3342fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } else { 3343c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, 3344c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Node->getOperand(0).getValueType()); 3345fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3346c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3347c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); // The 'op' is not necessarily legal! 3348fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3349fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3350fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3351fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3352fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::TRUNCATE: 3353fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3354fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 3355fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3356c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3357fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3358fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Expand: 3359fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 3360fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner 3361fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner // Since the result is legal, we should just be able to truncate the low 3362fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner // part of the source. 3363fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), Tmp1); 3364fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3365fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 3366fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = PromoteOp(Node->getOperand(0)); 3367fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, Op.getValueType(), Result); 3368fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3369fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3370fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3371d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 3372fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::FP_TO_SINT: 3373fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::FP_TO_UINT: 3374fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3375fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 3376f1fa74ee0d30dfdb854f7d3f5ee67437cc82e250Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3377f1fa74ee0d30dfdb854f7d3f5ee67437cc82e250Chris Lattner 33781618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))){ 33791618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner default: assert(0 && "Unknown operation action!"); 3380456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3381456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3382456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 3383456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 3384c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3385456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3386456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3387456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3388456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3389456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3390456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 3391456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = PromoteLegalFP_TO_INT(Tmp1, Node->getValueType(0), 3392456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Node->getOpcode() == ISD::FP_TO_SINT); 3393456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 33941618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner case TargetLowering::Expand: 3395d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman if (Node->getOpcode() == ISD::FP_TO_UINT) { 3396d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman SDOperand True, False; 3397d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman MVT::ValueType VT = Node->getOperand(0).getValueType(); 3398d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman MVT::ValueType NVT = Node->getValueType(0); 3399f4d4832724eb45f94d63e6a7ab932b8f77279587Dale Johannesen unsigned ShiftAmt = MVT::getSizeInBits(NVT)-1; 340073328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen const uint64_t zero[] = {0, 0}; 340173328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen APFloat apf = APFloat(APInt(MVT::getSizeInBits(VT), 2, zero)); 340273328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen uint64_t x = 1ULL << ShiftAmt; 3403ccf596a53e16ea221a9bf8b3874a7d6afa71f1f4Neil Booth (void)apf.convertFromZeroExtendedInteger 3404ccf596a53e16ea221a9bf8b3874a7d6afa71f1f4Neil Booth (&x, MVT::getSizeInBits(NVT), false, APFloat::rmNearestTiesToEven); 340573328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen Tmp2 = DAG.getConstantFP(apf, VT); 3406d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp3 = DAG.getSetCC(TLI.getSetCCResultTy(), 3407d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Node->getOperand(0), Tmp2, ISD::SETLT); 3408d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman True = DAG.getNode(ISD::FP_TO_SINT, NVT, Node->getOperand(0)); 3409d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman False = DAG.getNode(ISD::FP_TO_SINT, NVT, 341001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner DAG.getNode(ISD::FSUB, VT, Node->getOperand(0), 3411d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp2)); 3412d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman False = DAG.getNode(ISD::XOR, NVT, False, 3413d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman DAG.getConstant(1ULL << ShiftAmt, NVT)); 3414456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Tmp3, True, False); 3415456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3416d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } else { 3417d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman assert(0 && "Do not know how to expand FP_TO_SINT yet!"); 3418d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } 3419d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman break; 34201618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner } 3421fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 34226af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng case Expand: { 34236af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng MVT::ValueType VT = Op.getValueType(); 34246eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen MVT::ValueType OVT = Node->getOperand(0).getValueType(); 3425fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen // Convert ppcf128 to i32 34266eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen if (OVT == MVT::ppcf128 && VT == MVT::i32) { 3427fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen if (Node->getOpcode()==ISD::FP_TO_SINT) 3428fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen Result = DAG.getNode(ISD::FP_TO_SINT, VT, 34296eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen DAG.getNode(ISD::FP_ROUND, MVT::f64, 34306eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen (DAG.getNode(ISD::FP_ROUND_INREG, 34316eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen MVT::ppcf128, Node->getOperand(0), 34326eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen DAG.getValueType(MVT::f64))))); 3433fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen else { 3434fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen const uint64_t TwoE31[] = {0x41e0000000000000LL, 0}; 3435fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen APFloat apf = APFloat(APInt(128, 2, TwoE31)); 3436fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen Tmp2 = DAG.getConstantFP(apf, OVT); 3437fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen // X>=2^31 ? (int)(X-2^31)+0x80000000 : (int)X 3438fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen // FIXME: generated code sucks. 3439fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen Result = DAG.getNode(ISD::SELECT_CC, VT, Node->getOperand(0), Tmp2, 3440fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getNode(ISD::ADD, MVT::i32, 3441fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getNode(ISD::FP_TO_SINT, VT, 3442fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getNode(ISD::FSUB, OVT, 3443fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen Node->getOperand(0), Tmp2)), 3444fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getConstant(0x80000000, MVT::i32)), 3445fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getNode(ISD::FP_TO_SINT, VT, 3446fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen Node->getOperand(0)), 3447fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getCondCode(ISD::SETGE)); 3448fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen } 34496eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen break; 34506eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen } 3451fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen // Convert f32 / f64 to i32 / i64. 345256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 34536af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng switch (Node->getOpcode()) { 345473328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen case ISD::FP_TO_SINT: { 345573328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen if (OVT == MVT::f32) 345656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::i32) 345756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::FPTOSINT_F32_I32 : RTLIB::FPTOSINT_F32_I64; 345873328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen else if (OVT == MVT::f64) 345956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::i32) 346056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::FPTOSINT_F64_I32 : RTLIB::FPTOSINT_F64_I64; 3461161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen else if (OVT == MVT::f80) { 346273328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen assert(VT == MVT::i64); 3463161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen LC = RTLIB::FPTOSINT_F80_I64; 3464161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen } 3465161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen else if (OVT == MVT::ppcf128) { 3466161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen assert(VT == MVT::i64); 3467161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen LC = RTLIB::FPTOSINT_PPCF128_I64; 346873328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen } 34696af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng break; 347073328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen } 347173328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen case ISD::FP_TO_UINT: { 347273328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen if (OVT == MVT::f32) 347356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::i32) 347456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::FPTOUINT_F32_I32 : RTLIB::FPTOSINT_F32_I64; 347573328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen else if (OVT == MVT::f64) 347656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::i32) 347756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::FPTOUINT_F64_I32 : RTLIB::FPTOSINT_F64_I64; 3478161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen else if (OVT == MVT::f80) { 347973328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen LC = (VT == MVT::i32) 3480161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen ? RTLIB::FPTOUINT_F80_I32 : RTLIB::FPTOUINT_F80_I64; 3481161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen } 3482161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen else if (OVT == MVT::ppcf128) { 3483161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen assert(VT == MVT::i64); 3484161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen LC = RTLIB::FPTOUINT_PPCF128_I64; 348573328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen } 34866af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng break; 348773328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen } 34886af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng default: assert(0 && "Unreachable!"); 34896af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng } 34906af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng SDOperand Dummy; 349156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, 349256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Dummy); 34936af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng break; 34946af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng } 3495fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 3496c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3497c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, LegalizeOp(Tmp1)); 3498c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); 3499fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3500fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3501fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3502d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 3503ab081c7195ad0b2bc9a13fa718f2bbffe54ac61cDale Johannesen case ISD::FP_EXTEND: 35045411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen case ISD::FP_ROUND: { 35055411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen MVT::ValueType newVT = Op.getValueType(); 35065411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen MVT::ValueType oldVT = Op.getOperand(0).getValueType(); 35075411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen if (TLI.getConvertAction(oldVT, newVT) == TargetLowering::Expand) { 3508638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen if (Node->getOpcode() == ISD::FP_ROUND && oldVT == MVT::ppcf128) { 3509638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen SDOperand Lo, Hi; 3510638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen ExpandOp(Node->getOperand(0), Lo, Hi); 3511638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen if (newVT == MVT::f64) 3512638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Result = Hi; 3513638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen else 3514638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Result = DAG.getNode(ISD::FP_ROUND, newVT, Hi); 3515638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen break; 3516ab081c7195ad0b2bc9a13fa718f2bbffe54ac61cDale Johannesen } else { 3517638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // The only other way we can lower this is to turn it into a STORE, 3518638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // LOAD pair, targetting a temporary location (a stack slot). 3519638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen 3520638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // NOTE: there is a choice here between constantly creating new stack 3521638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // slots and always reusing the same one. We currently always create 3522638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // new ones, as reuse may inhibit scheduling. 3523638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen MVT::ValueType slotVT = 3524638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen (Node->getOpcode() == ISD::FP_EXTEND) ? oldVT : newVT; 3525638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen const Type *Ty = MVT::getTypeForValueType(slotVT); 3526638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen uint64_t TySize = TLI.getTargetData()->getTypeSize(Ty); 3527638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen unsigned Align = TLI.getTargetData()->getPrefTypeAlignment(Ty); 3528638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen MachineFunction &MF = DAG.getMachineFunction(); 3529638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen int SSFI = 3530638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen MF.getFrameInfo()->CreateStackObject(TySize, Align); 3531638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen SDOperand StackSlot = DAG.getFrameIndex(SSFI, TLI.getPointerTy()); 3532638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen if (Node->getOpcode() == ISD::FP_EXTEND) { 3533638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Result = DAG.getStore(DAG.getEntryNode(), Node->getOperand(0), 3534638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen StackSlot, NULL, 0); 3535638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Result = DAG.getExtLoad(ISD::EXTLOAD, newVT, 3536638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Result, StackSlot, NULL, 0, oldVT); 3537638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen } else { 3538638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Result = DAG.getTruncStore(DAG.getEntryNode(), Node->getOperand(0), 3539638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen StackSlot, NULL, 0, newVT); 3540a7c97a7f5b82778ca5abfc3791c6b7f96b82a5faDuncan Sands Result = DAG.getLoad(newVT, Result, StackSlot, NULL, 0); 3541638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen } 3542638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen break; 3543ab081c7195ad0b2bc9a13fa718f2bbffe54ac61cDale Johannesen } 35445411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen } 3545849f214a4e3676e41168b0c5398165c4d4fb99f8Dale Johannesen } 3546849f214a4e3676e41168b0c5398165c4d4fb99f8Dale Johannesen // FALL THROUGH 354713c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 35483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ZERO_EXTEND: 35493e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SIGN_EXTEND: 35503e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3551456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case Expand: assert(0 && "Shouldn't need to expand other operators here!"); 35523e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 35533e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3554c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 35553e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 355603c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Promote: 355703c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (Node->getOpcode()) { 355813c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 3559c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3560c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Tmp1); 356113c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner break; 35621713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner case ISD::ZERO_EXTEND: 35631713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = PromoteOp(Node->getOperand(0)); 356413c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Result); 356523993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 356623993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 356703c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 356803c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::SIGN_EXTEND: 35691713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = PromoteOp(Node->getOperand(0)); 357013c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Result); 35711713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 357215e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result, 357315e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 35741713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner break; 357503c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::FP_EXTEND: 35761713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = PromoteOp(Node->getOperand(0)); 35771713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner if (Result.getValueType() != Op.getValueType()) 35781713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner // Dynamically dead while we have only 2 FP types. 35791713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = DAG.getNode(ISD::FP_EXTEND, Op.getValueType(), Result); 35801713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner break; 358103c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::FP_ROUND: 3582f8161d83f0201a32a33a0c875eb43df81d8586abChris Lattner Result = PromoteOp(Node->getOperand(0)); 3583f8161d83f0201a32a33a0c875eb43df81d8586abChris Lattner Result = DAG.getNode(Node->getOpcode(), Op.getValueType(), Result); 3584f8161d83f0201a32a33a0c875eb43df81d8586abChris Lattner break; 358503c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 35863e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 35873e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 35880f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::FP_ROUND_INREG: 358923993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner case ISD::SIGN_EXTEND_INREG: { 35900f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 359115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner MVT::ValueType ExtraVT = cast<VTSDNode>(Node->getOperand(1))->getVT(); 359245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner 359345b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // If this operation is not supported, convert it to a shl/shr or load/store 359445b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // pair. 359555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), ExtraVT)) { 359655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action not supported for this op yet!"); 359755ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Legal: 3598c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 359955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 360055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Expand: 360145b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // If this is an integer extend and shifts are supported, do that. 360223993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner if (Node->getOpcode() == ISD::SIGN_EXTEND_INREG) { 360345b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // NOTE: we could fall back on load/store here too for targets without 360445b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // SAR. However, it is doubtful that any exist. 360545b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner unsigned BitsDiff = MVT::getSizeInBits(Node->getValueType(0)) - 360645b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner MVT::getSizeInBits(ExtraVT); 360727ff112948d059524e5f4ebe249a1da0b7c710e8Chris Lattner SDOperand ShiftCst = DAG.getConstant(BitsDiff, TLI.getShiftAmountTy()); 360845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result = DAG.getNode(ISD::SHL, Node->getValueType(0), 360945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Node->getOperand(0), ShiftCst); 361045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result = DAG.getNode(ISD::SRA, Node->getValueType(0), 361145b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result, ShiftCst); 361245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } else if (Node->getOpcode() == ISD::FP_ROUND_INREG) { 36132d84c4c7b314242346dea1a7f48563333476a4d5Jim Laskey // The only way we can lower this is to turn it into a TRUNCSTORE, 361445b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // EXTLOAD pair, targetting a temporary location (a stack slot). 361545b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner 361645b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // NOTE: there is a choice here between constantly creating new stack 361745b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // slots and always reusing the same one. We currently always create 361845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // new ones, as reuse may inhibit scheduling. 361945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner const Type *Ty = MVT::getTypeForValueType(ExtraVT); 362044b2c5098f5cf766b4eff43d9eb0d8a9a143e7d8Chris Lattner uint64_t TySize = TLI.getTargetData()->getTypeSize(Ty); 3621d2b7cec527a0efa552628378ebca7a8ca63bb45dChris Lattner unsigned Align = TLI.getTargetData()->getPrefTypeAlignment(Ty); 362245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner MachineFunction &MF = DAG.getMachineFunction(); 3623edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman int SSFI = 362444b2c5098f5cf766b4eff43d9eb0d8a9a143e7d8Chris Lattner MF.getFrameInfo()->CreateStackObject(TySize, Align); 362545b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner SDOperand StackSlot = DAG.getFrameIndex(SSFI, TLI.getPointerTy()); 36268b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getTruncStore(DAG.getEntryNode(), Node->getOperand(0), 36278b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng StackSlot, NULL, 0, ExtraVT); 36285f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner Result = DAG.getExtLoad(ISD::EXTLOAD, Node->getValueType(0), 3629466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result, StackSlot, NULL, 0, ExtraVT); 363045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } else { 363145b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner assert(0 && "Unknown op"); 363245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 363355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 363445b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 36350f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner break; 36363e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 363736397f50343639ce9a25996f2d790c656791ab92Duncan Sands case ISD::TRAMPOLINE: { 363836397f50343639ce9a25996f2d790c656791ab92Duncan Sands SDOperand Ops[6]; 363936397f50343639ce9a25996f2d790c656791ab92Duncan Sands for (unsigned i = 0; i != 6; ++i) 364036397f50343639ce9a25996f2d790c656791ab92Duncan Sands Ops[i] = LegalizeOp(Node->getOperand(i)); 364136397f50343639ce9a25996f2d790c656791ab92Duncan Sands Result = DAG.UpdateNodeOperands(Result, Ops, 6); 364236397f50343639ce9a25996f2d790c656791ab92Duncan Sands // The only option for this node is to custom lower it. 364336397f50343639ce9a25996f2d790c656791ab92Duncan Sands Result = TLI.LowerOperation(Result, DAG); 364436397f50343639ce9a25996f2d790c656791ab92Duncan Sands assert(Result.Val && "Should always custom lower!"); 3645f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands 3646f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands // Since trampoline produces two values, make sure to remember that we 3647f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands // legalized both of them. 3648f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands Tmp1 = LegalizeOp(Result.getValue(1)); 3649f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands Result = LegalizeOp(Result); 3650f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands AddLegalizedOperand(SDOperand(Node, 0), Result); 3651f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands AddLegalizedOperand(SDOperand(Node, 1), Tmp1); 3652f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands return Op.ResNo ? Tmp1 : Result; 365336397f50343639ce9a25996f2d790c656791ab92Duncan Sands } 365445b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 3655456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 36564ddd283f6928fc337c1bf3277566d7b31526e8d9Chris Lattner assert(Result.getValueType() == Op.getValueType() && 36574ddd283f6928fc337c1bf3277566d7b31526e8d9Chris Lattner "Bad legalization!"); 36584ddd283f6928fc337c1bf3277566d7b31526e8d9Chris Lattner 3659456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Make sure that the generated code is itself legal. 3660456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Result != Op) 3661456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Result); 36623e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 366345982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // Note that LegalizeOp may be reentered even from single-use nodes, which 366445982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // means that we always must cache transformed nodes. 366545982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner AddLegalizedOperand(Op, Result); 36663e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner return Result; 36673e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 36683e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 36698b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// PromoteOp - Given an operation that produces a value in an invalid type, 36708b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// promote it to compute the value into a larger type. The produced value will 36718b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// have the correct bits for the low portion of the register, but no guarantee 36728b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// is made about the top bits: it may be zero, sign-extended, or garbage. 367303c8546ec57523970874917854a2fb77b1ff598eChris LattnerSDOperand SelectionDAGLegalize::PromoteOp(SDOperand Op) { 367403c8546ec57523970874917854a2fb77b1ff598eChris Lattner MVT::ValueType VT = Op.getValueType(); 367571c42a0190300a8903aaea80467b88f15f327ea9Chris Lattner MVT::ValueType NVT = TLI.getTypeToTransformTo(VT); 367603c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(getTypeAction(VT) == Promote && 367703c8546ec57523970874917854a2fb77b1ff598eChris Lattner "Caller should expand or legalize operands that are not promotable!"); 367803c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(NVT > VT && MVT::isInteger(NVT) == MVT::isInteger(VT) && 367903c8546ec57523970874917854a2fb77b1ff598eChris Lattner "Cannot promote to smaller type!"); 368003c8546ec57523970874917854a2fb77b1ff598eChris Lattner 368103c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDOperand Tmp1, Tmp2, Tmp3; 368203c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDOperand Result; 368303c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDNode *Node = Op.Val; 368403c8546ec57523970874917854a2fb77b1ff598eChris Lattner 368540030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner DenseMap<SDOperand, SDOperand>::iterator I = PromotedNodes.find(Op); 36866fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner if (I != PromotedNodes.end()) return I->second; 368745982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner 368803c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (Node->getOpcode()) { 3689d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner case ISD::CopyFromReg: 3690d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner assert(0 && "CopyFromReg must be legal!"); 369103c8546ec57523970874917854a2fb77b1ff598eChris Lattner default: 3692e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 369339833585556a69de12053ca1e104fe7edfd86cbdDan Gohman cerr << "NODE: "; Node->dump(&DAG); cerr << "\n"; 3694e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 369503c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(0 && "Do not know how to promote this operator!"); 369603c8546ec57523970874917854a2fb77b1ff598eChris Lattner abort(); 3697fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: 3698fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Result = DAG.getNode(ISD::UNDEF, NVT); 3699fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 370003c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::Constant: 3701ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner if (VT != MVT::i1) 3702ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND, NVT, Op); 3703ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner else 3704ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner Result = DAG.getNode(ISD::ZERO_EXTEND, NVT, Op); 370503c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(isa<ConstantSDNode>(Result) && "Didn't constant fold zext?"); 370603c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 370703c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::ConstantFP: 370803c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = DAG.getNode(ISD::FP_EXTEND, NVT, Op); 370903c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(isa<ConstantFPSDNode>(Result) && "Didn't constant fold fp_extend?"); 371003c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 3711ef5cd1d3cf7d0b20987a545fcd2d0af2bfe6c422Chris Lattner 371282fbfb6984c1feb7d44a077ac2dc031f4a950005Chris Lattner case ISD::SETCC: 3713c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner assert(isTypeLegal(TLI.getSetCCResultTy()) && "SetCC type is not legal??"); 37147cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Result = DAG.getNode(ISD::SETCC, TLI.getSetCCResultTy(),Node->getOperand(0), 37157cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Node->getOperand(1), Node->getOperand(2)); 371682fbfb6984c1feb7d44a077ac2dc031f4a950005Chris Lattner break; 3717fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner 371803c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::TRUNCATE: 371903c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 372003c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Legal: 372103c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = LegalizeOp(Node->getOperand(0)); 372203c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(Result.getValueType() >= NVT && 372303c8546ec57523970874917854a2fb77b1ff598eChris Lattner "This truncation doesn't make sense!"); 372403c8546ec57523970874917854a2fb77b1ff598eChris Lattner if (Result.getValueType() > NVT) // Truncate to NVT instead of VT 372503c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, NVT, Result); 372603c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 3727e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner case Promote: 3728e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner // The truncation is not required, because we don't guarantee anything 3729e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner // about high bits anyway. 3730e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner Result = PromoteOp(Node->getOperand(0)); 3731e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner break; 373203c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Expand: 373379e46acd35df36477029e9f534ab1a366a98df56Nate Begeman ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 373479e46acd35df36477029e9f534ab1a366a98df56Nate Begeman // Truncate the low part of the expanded value to the result type 3735e21c305ed85b2be4a27784ba52471f6b68fdd255Chris Lattner Result = DAG.getNode(ISD::TRUNCATE, NVT, Tmp1); 373603c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 373703c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 37388b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SIGN_EXTEND: 37398b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::ZERO_EXTEND: 374013c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 37418b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 37428b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: assert(0 && "BUG: Smaller reg should have been promoted!"); 37438b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 37448b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Input is legal? Just do extend all the way to the larger type. 3745456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Node->getOperand(0)); 37468b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 37478b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 37488b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Promote the reg if it's smaller. 37498b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = PromoteOp(Node->getOperand(0)); 37508b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The high bits are not guaranteed to be anything. Insert an extend. 37518b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (Node->getOpcode() == ISD::SIGN_EXTEND) 3752595dc5408ad809b9a9a417db275c43242e54b8dcChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Result, 375315e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 375413c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner else if (Node->getOpcode() == ISD::ZERO_EXTEND) 375523993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 375623993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 37578b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 37588b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 37598b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 376035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: 376135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = ExpandBIT_CONVERT(Node->getValueType(0), Node->getOperand(0)); 376235481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = PromoteOp(Result); 376335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 376435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 37658b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_EXTEND: 37668b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(0 && "Case not implemented. Dynamically dead with 2 FP types!"); 37678b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_ROUND: 37688b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 37698b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: assert(0 && "BUG: Cannot expand FP regs!"); 37708b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: assert(0 && "Unreachable with 2 FP types!"); 37718b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 37728b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Input is legal? Do an FP_ROUND_INREG. 3773456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Node->getOperand(0), 377415e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 37758b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 37768b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 37778b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 37788b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 37798b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SINT_TO_FP: 37808b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UINT_TO_FP: 37818b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 37828b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 378377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // No extra round required here. 3784456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Node->getOperand(0)); 37858b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 37868b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 37878b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 37888b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = PromoteOp(Node->getOperand(0)); 37898b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (Node->getOpcode() == ISD::SINT_TO_FP) 37908b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 379115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result, 379215e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 37938b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner else 379423993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 379523993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 379677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // No extra round required here. 379777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Result); 37988b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 37998b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: 380077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Result = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, NVT, 380177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Node->getOperand(0)); 380277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // Round if we cannot tolerate excess precision. 380377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner if (NoExcessFPPrecision) 380415e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 380515e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 380677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner break; 38078b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 38088b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 38098b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 38105e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner case ISD::SIGN_EXTEND_INREG: 38115e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Result = PromoteOp(Node->getOperand(0)); 38125e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Result, 38135e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Node->getOperand(1)); 38145e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner break; 38158b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_TO_SINT: 38168b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_TO_UINT: 38178b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 38188b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 38190b1b9dcf22745b533562134c2f0472098fe085fdEvan Cheng case Expand: 3820456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Node->getOperand(0); 38218b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 38228b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 38238b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input result is prerounded, so we don't have to do anything 38248b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // special. 38258b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 38268b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 38278b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 3828d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // If we're promoting a UINT to a larger size, check to see if the new node 3829d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // will be legal. If it isn't, check to see if FP_TO_SINT is legal, since 3830d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // we can use that instead. This allows us to generate better code for 3831d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // FP_TO_UINT for small destination sizes on targets where FP_TO_UINT is not 3832d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // legal, such as PowerPC. 3833d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman if (Node->getOpcode() == ISD::FP_TO_UINT && 3834c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner !TLI.isOperationLegal(ISD::FP_TO_UINT, NVT) && 3835b7f6ef12f682c7068ca7513e088177a0d1046b35Nate Begeman (TLI.isOperationLegal(ISD::FP_TO_SINT, NVT) || 3836b7f6ef12f682c7068ca7513e088177a0d1046b35Nate Begeman TLI.getOperationAction(ISD::FP_TO_SINT, NVT)==TargetLowering::Custom)){ 3837d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Result = DAG.getNode(ISD::FP_TO_SINT, NVT, Tmp1); 3838d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } else { 3839d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 3840d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } 38418b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 38428b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 38432c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FABS: 38442c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FNEG: 38452c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 38462c8086f4b9916b2d02842be5e375276023225fbaChris Lattner assert(Tmp1.getValueType() == NVT); 38472c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 38482c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // NOTE: we do not have to do any extra rounding here for 38492c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // NoExcessFPPrecision, because we know the input will have the appropriate 38502c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // precision, and these operations don't modify precision at all. 38512c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 38522c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 3853da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSQRT: 3854da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSIN: 3855da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FCOS: 3856da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3857da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner assert(Tmp1.getValueType() == NVT); 3858da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 3859456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (NoExcessFPPrecision) 386015e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 386115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 3862da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner break; 3863da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner 38648b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner case ISD::FPOWI: { 38658b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner // Promote f32 powi to f64 powi. Note that this could insert a libcall 38668b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner // directly as well, which may be better. 38678b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 38688b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner assert(Tmp1.getValueType() == NVT); 38698b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner Result = DAG.getNode(ISD::FPOWI, NVT, Tmp1, Node->getOperand(1)); 38708b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner if (NoExcessFPPrecision) 38718b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 38728b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner DAG.getValueType(VT)); 38738b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner break; 38748b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner } 38758b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner 387603c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::AND: 387703c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::OR: 387803c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::XOR: 38790f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::ADD: 38808b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SUB: 38810f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::MUL: 38820f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner // The input may have strange things in the top bits of the registers, but 388301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // these operations don't care. They may have weird bits going out, but 38840f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner // that too is okay if they are integer operations. 38850f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 38860f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 38870f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner assert(Tmp1.getValueType() == NVT && Tmp2.getValueType() == NVT); 38880f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 388901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner break; 389001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FADD: 389101b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FSUB: 389201b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FMUL: 389301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 389401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 389501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner assert(Tmp1.getValueType() == NVT && Tmp2.getValueType() == NVT); 389601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 389701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner 389801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // Floating point operations will give excess precision that we may not be 389901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // able to tolerate. If we DO allow excess precision, just leave it, 390001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // otherwise excise it. 39018b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // FIXME: Why would we need to round FP ops more than integer ones? 39028b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Is Round(Add(Add(A,B),C)) != Round(Add(Round(Add(A,B)), C)) 390301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner if (NoExcessFPPrecision) 390415e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 390515e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 39060f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner break; 39070f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner 39088b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SDIV: 39098b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SREM: 39108b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // These operators require that their input be sign extended. 39118b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 39128b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 39138b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (MVT::isInteger(NVT)) { 391415e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 391515e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 391615e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp2 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp2, 391715e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 39188b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 39198b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 39208b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 39218b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Perform FP_ROUND: this is probably overly pessimistic. 39228b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (MVT::isFloatingPoint(NVT) && NoExcessFPPrecision) 392315e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 392415e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 39258b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 392601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FDIV: 392701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FREM: 3928a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case ISD::FCOPYSIGN: 392901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // These operators require that their input be fp extended. 3930ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman switch (getTypeAction(Node->getOperand(0).getValueType())) { 3931ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Legal: 3932ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); 3933ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman break; 3934ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Promote: 3935ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman Tmp1 = PromoteOp(Node->getOperand(0)); 3936ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman break; 3937ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Expand: 3938ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman assert(0 && "not implemented"); 3939ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman } 3940ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman switch (getTypeAction(Node->getOperand(1).getValueType())) { 3941ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Legal: 3942ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); 3943ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman break; 3944ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Promote: 3945ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman Tmp2 = PromoteOp(Node->getOperand(1)); 3946ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman break; 3947ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Expand: 3948ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman assert(0 && "not implemented"); 3949ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman } 395001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 395101b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner 395201b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // Perform FP_ROUND: this is probably overly pessimistic. 3953a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner if (NoExcessFPPrecision && Node->getOpcode() != ISD::FCOPYSIGN) 395401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 395501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner DAG.getValueType(VT)); 395601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner break; 39578b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 39588b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UDIV: 39598b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UREM: 39608b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // These operators require that their input be zero extended. 39618b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 39628b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 39638b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(MVT::isInteger(NVT) && "Operators don't apply to FP!"); 396423993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 396523993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp2 = DAG.getZeroExtendInReg(Tmp2, VT); 39668b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 39678b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 39688b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 39698b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SHL: 39708b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3971456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SHL, NVT, Tmp1, Node->getOperand(1)); 39728b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 39738b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SRA: 39748b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input value must be properly sign extended. 39758b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 397615e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 397715e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 3978456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRA, NVT, Tmp1, Node->getOperand(1)); 39798b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 39808b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SRL: 39818b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input value must be properly zero extended. 39828b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 398323993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 3984456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRL, NVT, Tmp1, Node->getOperand(1)); 39858b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 39860aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman 39870aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman case ISD::VAARG: 3988456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Node->getOperand(0); // Get the chain. 3989456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = Node->getOperand(1); // Get the pointer. 39900aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman if (TLI.getOperationAction(ISD::VAARG, VT) == TargetLowering::Custom) { 39910aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Tmp3 = DAG.getVAArg(VT, Tmp1, Tmp2, Node->getOperand(2)); 39920aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Result = TLI.CustomPromoteOperation(Tmp3, DAG); 39930aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman } else { 3994466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SrcValueSDNode *SV = cast<SrcValueSDNode>(Node->getOperand(2)); 39950aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman SDOperand VAList = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp2, 3996466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SV->getValue(), SV->getOffset()); 39970aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Increment the pointer, VAList, to the next vaarg 39980aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Tmp3 = DAG.getNode(ISD::ADD, TLI.getPointerTy(), VAList, 39990aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman DAG.getConstant(MVT::getSizeInBits(VT)/8, 40000aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman TLI.getPointerTy())); 40010aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Store the incremented VAList to the legalized pointer 40028b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = DAG.getStore(VAList.getValue(1), Tmp3, Tmp2, SV->getValue(), 40038b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SV->getOffset()); 40040aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Load the actual argument out of the pointer VAList 4005466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getExtLoad(ISD::EXTLOAD, NVT, Tmp3, VAList, NULL, 0, VT); 40060aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman } 40070aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Remember that we legalized the chain. 4008456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 40090aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman break; 40100aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman 4011466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case ISD::LOAD: { 4012466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LoadSDNode *LD = cast<LoadSDNode>(Node); 401362f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng ISD::LoadExtType ExtType = ISD::isNON_EXTLoad(Node) 401462f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng ? ISD::EXTLOAD : LD->getExtensionType(); 401562f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng Result = DAG.getExtLoad(ExtType, NVT, 401662f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng LD->getChain(), LD->getBasePtr(), 401755b5708b6bbffc79cf133c31faa51d144bfc5d4aChris Lattner LD->getSrcValue(), LD->getSrcValueOffset(), 4018d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->getLoadedVT(), 4019d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->isVolatile(), 4020d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->getAlignment()); 40214c8f8f0481b26818d7810a6a585e7ecf52973e93Chris Lattner // Remember that we legalized the chain. 4022456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 40234c8f8f0481b26818d7810a6a585e7ecf52973e93Chris Lattner break; 4024466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 402503c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::SELECT: 402603c8546ec57523970874917854a2fb77b1ff598eChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Legalize the op0 402703c8546ec57523970874917854a2fb77b1ff598eChris Lattner Tmp3 = PromoteOp(Node->getOperand(2)); // Legalize the op1 4028456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), Tmp2, Tmp3); 402903c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 40309373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case ISD::SELECT_CC: 40319373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2 = PromoteOp(Node->getOperand(2)); // True 40329373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp3 = PromoteOp(Node->getOperand(3)); // False 40339373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 4034456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Node->getOperand(1), Tmp2, Tmp3, Node->getOperand(4)); 40359373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 4036d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: 4037d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = Node->getOperand(0); 4038d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 4039d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = DAG.getNode(ISD::BSWAP, NVT, Tmp1); 4040d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Result = DAG.getNode(ISD::SRL, NVT, Tmp1, 4041b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(NVT) - 4042b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman MVT::getSizeInBits(VT), 4043d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman TLI.getShiftAmountTy())); 4044d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 4045fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTPOP: 4046fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTTZ: 4047fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTLZ: 4048456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Zero extend the argument 4049456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Node->getOperand(0)); 4050fecf095292991bdf9396fec474011446107f9813Andrew Lenharth // Perform the larger operation, then subtract if needed. 4051fecf095292991bdf9396fec474011446107f9813Andrew Lenharth Tmp1 = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 4052456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch(Node->getOpcode()) { 4053fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTPOP: 4054fecf095292991bdf9396fec474011446107f9813Andrew Lenharth Result = Tmp1; 4055fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 4056fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTTZ: 4057456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // if Tmp1 == sizeinbits(NVT) then Tmp1 = sizeinbits(Old VT) 4058d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), Tmp1, 4059b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(NVT), NVT), 4060b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman ISD::SETEQ); 406100b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SELECT, NVT, Tmp2, 4062b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(VT), NVT), Tmp1); 4063fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 4064fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTLZ: 4065fecf095292991bdf9396fec474011446107f9813Andrew Lenharth //Tmp1 = Tmp1 - (sizeinbits(NVT) - sizeinbits(Old VT)) 406600b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SUB, NVT, Tmp1, 4067b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(NVT) - 4068b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman MVT::getSizeInBits(VT), NVT)); 4069fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 4070fecf095292991bdf9396fec474011446107f9813Andrew Lenharth } 4071fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 40727f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::EXTRACT_SUBVECTOR: 40737f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = PromoteOp(ExpandEXTRACT_SUBVECTOR(Op)); 40746595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 40754aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner case ISD::EXTRACT_VECTOR_ELT: 40764aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner Result = PromoteOp(ExpandEXTRACT_VECTOR_ELT(Op)); 40774aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner break; 407803c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 407903c8546ec57523970874917854a2fb77b1ff598eChris Lattner 408003c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(Result.Val && "Didn't set a result!"); 4081456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 4082456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Make sure the result is itself legal. 4083456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Result); 4084456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 4085456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Remember that we promoted this! 408603c8546ec57523970874917854a2fb77b1ff598eChris Lattner AddPromotedOperand(Op, Result); 408703c8546ec57523970874917854a2fb77b1ff598eChris Lattner return Result; 408803c8546ec57523970874917854a2fb77b1ff598eChris Lattner} 40893e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 40907f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// ExpandEXTRACT_VECTOR_ELT - Expand an EXTRACT_VECTOR_ELT operation into 40917f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// a legal EXTRACT_VECTOR_ELT operation, scalar code, or memory traffic, 40927f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// based on the vector type. The return type of this matches the element type 40937f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// of the vector, which may not be legal for the target. 40947f32156bb9c017b71971c52fac892fa7b9b06dd2Dan GohmanSDOperand SelectionDAGLegalize::ExpandEXTRACT_VECTOR_ELT(SDOperand Op) { 40951597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // We know that operand #0 is the Vec vector. If the index is a constant 40961597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // or if the invec is a supported hardware type, we can use it. Otherwise, 40971597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // lower to a store then an indexed load. 40981597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SDOperand Vec = Op.getOperand(0); 40997f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Idx = Op.getOperand(1); 41001597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 4101e40c7b097354974ebd42c7e5d54440b07b57cc33Dan Gohman MVT::ValueType TVT = Vec.getValueType(); 41027f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned NumElems = MVT::getVectorNumElements(TVT); 41031597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 41047f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman switch (TLI.getOperationAction(ISD::EXTRACT_VECTOR_ELT, TVT)) { 41057f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman default: assert(0 && "This action is not supported yet!"); 41067f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case TargetLowering::Custom: { 41077f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Vec = LegalizeOp(Vec); 41087f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 41097f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Tmp3 = TLI.LowerOperation(Op, DAG); 41107f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (Tmp3.Val) 41117f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman return Tmp3; 41127f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 41137f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 41147f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case TargetLowering::Legal: 41157f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (isTypeLegal(TVT)) { 41167f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Vec = LegalizeOp(Vec); 41177f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 4118844228a631f47bb39f71f617063831fb83c3843bChristopher Lamb return Op; 41197f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 41207f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 41217f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case TargetLowering::Expand: 41227f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 41237f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 41247f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 41257f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (NumElems == 1) { 41261597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // This must be an access of the only element. Return it. 41277f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = ScalarizeVectorOp(Vec); 41287f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else if (!TLI.isTypeLegal(TVT) && isa<ConstantSDNode>(Idx)) { 41297f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ConstantSDNode *CIdx = cast<ConstantSDNode>(Idx); 41301597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SDOperand Lo, Hi; 41311597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SplitVectorOp(Vec, Lo, Hi); 41321597221eace1c53ce5f84a7018397497d11a8393Chris Lattner if (CIdx->getValue() < NumElems/2) { 41331597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Vec = Lo; 41341597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } else { 41351597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Vec = Hi; 41367f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Idx = DAG.getConstant(CIdx->getValue() - NumElems/2, 41377f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Idx.getValueType()); 41381597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } 41397f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 41401597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // It's now an extract from the appropriate high or low part. Recurse. 41411597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 41427f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = ExpandEXTRACT_VECTOR_ELT(Op); 41431597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } else { 41447f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Store the value to a temporary stack slot, then LOAD the scalar 41457f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // element back out. 414685dd3be7354f848231362bd70f6517c0e667f95dChris Lattner SDOperand StackPtr = DAG.CreateStackTemporary(Vec.getValueType()); 41477f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ch = DAG.getStore(DAG.getEntryNode(), Vec, StackPtr, NULL, 0); 41487f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 41497f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Add the offset to the index. 41507f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned EltSize = MVT::getSizeInBits(Op.getValueType())/8; 41517f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Idx = DAG.getNode(ISD::MUL, Idx.getValueType(), Idx, 41527f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman DAG.getConstant(EltSize, Idx.getValueType())); 415390bfc2d10520f9621309436c1c6928a59cd33616Bill Wendling 415490bfc2d10520f9621309436c1c6928a59cd33616Bill Wendling if (MVT::getSizeInBits(Idx.getValueType()) > 415590bfc2d10520f9621309436c1c6928a59cd33616Bill Wendling MVT::getSizeInBits(TLI.getPointerTy())) 4156f185e67844e6229e2b0fe9080a5f66fb01fb7f5aChris Lattner Idx = DAG.getNode(ISD::TRUNCATE, TLI.getPointerTy(), Idx); 415790bfc2d10520f9621309436c1c6928a59cd33616Bill Wendling else 4158f185e67844e6229e2b0fe9080a5f66fb01fb7f5aChris Lattner Idx = DAG.getNode(ISD::ZERO_EXTEND, TLI.getPointerTy(), Idx); 415990bfc2d10520f9621309436c1c6928a59cd33616Bill Wendling 41607f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman StackPtr = DAG.getNode(ISD::ADD, Idx.getValueType(), Idx, StackPtr); 41617f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 41627f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = DAG.getLoad(Op.getValueType(), Ch, StackPtr, NULL, 0); 41631597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } 41647f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman return Op; 41651597221eace1c53ce5f84a7018397497d11a8393Chris Lattner} 41661597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 41677f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// ExpandEXTRACT_SUBVECTOR - Expand a EXTRACT_SUBVECTOR operation. For now 41686595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman/// we assume the operation can be split if it is not already legal. 41697f32156bb9c017b71971c52fac892fa7b9b06dd2Dan GohmanSDOperand SelectionDAGLegalize::ExpandEXTRACT_SUBVECTOR(SDOperand Op) { 41706595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // We know that operand #0 is the Vec vector. For now we assume the index 41716595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // is a constant and that the extracted result is a supported hardware type. 41726595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SDOperand Vec = Op.getOperand(0); 41736595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SDOperand Idx = LegalizeOp(Op.getOperand(1)); 41746595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 41757f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned NumElems = MVT::getVectorNumElements(Vec.getValueType()); 41766595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 41776595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman if (NumElems == MVT::getVectorNumElements(Op.getValueType())) { 41786595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // This must be an access of the desired vector length. Return it. 41797f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman return Vec; 41806595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } 41816595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 41826595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman ConstantSDNode *CIdx = cast<ConstantSDNode>(Idx); 41836595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SDOperand Lo, Hi; 41846595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SplitVectorOp(Vec, Lo, Hi); 41856595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman if (CIdx->getValue() < NumElems/2) { 41866595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Vec = Lo; 41876595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } else { 41886595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Vec = Hi; 41896595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Idx = DAG.getConstant(CIdx->getValue() - NumElems/2, Idx.getValueType()); 41906595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } 41916595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 41926595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // It's now an extract from the appropriate high or low part. Recurse. 41936595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 41947f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman return ExpandEXTRACT_SUBVECTOR(Op); 41954aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner} 41964aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner 4197750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// LegalizeSetCCOperands - Attempts to create a legal LHS and RHS for a SETCC 4198750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// with condition CC on the current target. This usually involves legalizing 4199750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// or promoting the arguments. In the case where LHS and RHS must be expanded, 4200750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// there may be no choice but to create a new SetCC node to represent the 4201750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// legalized value of setcc lhs, rhs. In this case, the value is returned in 4202750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// LHS, and the SDOperand returned in RHS has a nil SDNode value. 4203750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begemanvoid SelectionDAGLegalize::LegalizeSetCCOperands(SDOperand &LHS, 4204750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand &RHS, 4205750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand &CC) { 4206638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen SDOperand Tmp1, Tmp2, Tmp3, Result; 4207750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4208750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (getTypeAction(LHS.getValueType())) { 4209750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case Legal: 4210750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = LegalizeOp(LHS); // LHS 4211750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = LegalizeOp(RHS); // RHS 4212750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4213750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case Promote: 4214750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = PromoteOp(LHS); // LHS 4215750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = PromoteOp(RHS); // RHS 4216750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4217750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If this is an FP compare, the operands have already been extended. 4218750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (MVT::isInteger(LHS.getValueType())) { 4219750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman MVT::ValueType VT = LHS.getValueType(); 4220750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman MVT::ValueType NVT = TLI.getTypeToTransformTo(VT); 4221750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4222750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Otherwise, we have to insert explicit sign or zero extends. Note 4223750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // that we could insert sign extends for ALL conditions, but zero extend 4224750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // is cheaper on many machines (an AND instead of two shifts), so prefer 4225750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // it. 4226750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (cast<CondCodeSDNode>(CC)->get()) { 4227750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "Unknown integer comparison!"); 4228750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETEQ: 4229750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETNE: 4230750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGE: 4231750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGT: 4232750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULE: 4233750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULT: 4234750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // ALL of these operations will work if we either sign or zero extend 4235750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the operands (including the unsigned comparisons!). Zero extend is 4236750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // usually a simpler/cheaper operation, so prefer it. 4237750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 4238750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getZeroExtendInReg(Tmp2, VT); 4239750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4240750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGE: 4241750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGT: 4242750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLT: 4243750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLE: 4244750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 4245750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman DAG.getValueType(VT)); 4246750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp2, 4247750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman DAG.getValueType(VT)); 4248750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4249750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4250750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4251750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 42522b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case Expand: { 42532b49c500838666dd0186d021389d4dd70ffda240Evan Cheng MVT::ValueType VT = LHS.getValueType(); 42542b49c500838666dd0186d021389d4dd70ffda240Evan Cheng if (VT == MVT::f32 || VT == MVT::f64) { 42552b49c500838666dd0186d021389d4dd70ffda240Evan Cheng // Expand into one or more soft-fp libcall(s). 425656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC1, LC2 = RTLIB::UNKNOWN_LIBCALL; 42572b49c500838666dd0186d021389d4dd70ffda240Evan Cheng switch (cast<CondCodeSDNode>(CC)->get()) { 42582b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETEQ: 42592b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOEQ: 426056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OEQ_F32 : RTLIB::OEQ_F64; 42612b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 42622b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETNE: 42632b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUNE: 426456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::UNE_F32 : RTLIB::UNE_F64; 42652b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 42662b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETGE: 42672b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOGE: 426856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OGE_F32 : RTLIB::OGE_F64; 42692b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 42702b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETLT: 42712b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOLT: 427256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OLT_F32 : RTLIB::OLT_F64; 42732b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 42742b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETLE: 42752b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOLE: 427656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OLE_F32 : RTLIB::OLE_F64; 42772b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 42782b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETGT: 42792b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOGT: 428056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OGT_F32 : RTLIB::OGT_F64; 42812b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 42822b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUO: 4283d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::UO_F32 : RTLIB::UO_F64; 4284d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng break; 42852b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETO: 42865efdecc030f1a71cdb5b49d97c6c1c45e68ff731Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::O_F32 : RTLIB::O_F64; 42872b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 42882b49c500838666dd0186d021389d4dd70ffda240Evan Cheng default: 428956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::UO_F32 : RTLIB::UO_F64; 42902b49c500838666dd0186d021389d4dd70ffda240Evan Cheng switch (cast<CondCodeSDNode>(CC)->get()) { 42912b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETONE: 42922b49c500838666dd0186d021389d4dd70ffda240Evan Cheng // SETONE = SETOLT | SETOGT 429356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OLT_F32 : RTLIB::OLT_F64; 42942b49c500838666dd0186d021389d4dd70ffda240Evan Cheng // Fallthrough 42952b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUGT: 429656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OGT_F32 : RTLIB::OGT_F64; 42972b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 42982b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUGE: 429956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OGE_F32 : RTLIB::OGE_F64; 43002b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 43012b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETULT: 430256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OLT_F32 : RTLIB::OLT_F64; 43032b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 43042b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETULE: 430556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OLE_F32 : RTLIB::OLE_F64; 43062b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 430756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::SETUEQ: 430856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OEQ_F32 : RTLIB::OEQ_F64; 430956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 43102b49c500838666dd0186d021389d4dd70ffda240Evan Cheng default: assert(0 && "Unsupported FP setcc!"); 43112b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 43122b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 43132b49c500838666dd0186d021389d4dd70ffda240Evan Cheng 43142b49c500838666dd0186d021389d4dd70ffda240Evan Cheng SDOperand Dummy; 431556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Tmp1 = ExpandLibCall(TLI.getLibcallName(LC1), 431647857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer DAG.getNode(ISD::MERGE_VALUES, VT, LHS, RHS).Val, 4317b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer false /*sign irrelevant*/, Dummy); 43182b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp2 = DAG.getConstant(0, MVT::i32); 4319d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng CC = DAG.getCondCode(TLI.getCmpLibcallCC(LC1)); 432056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng if (LC2 != RTLIB::UNKNOWN_LIBCALL) { 43212b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp1 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultTy(), Tmp1, Tmp2, CC); 432256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LHS = ExpandLibCall(TLI.getLibcallName(LC2), 432347857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer DAG.getNode(ISD::MERGE_VALUES, VT, LHS, RHS).Val, 4324b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer false /*sign irrelevant*/, Dummy); 43252b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp2 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultTy(), LHS, Tmp2, 4326d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng DAG.getCondCode(TLI.getCmpLibcallCC(LC2))); 43272b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp1 = DAG.getNode(ISD::OR, Tmp1.getValueType(), Tmp1, Tmp2); 43282b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp2 = SDOperand(); 43292b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 43302b49c500838666dd0186d021389d4dd70ffda240Evan Cheng LHS = Tmp1; 43312b49c500838666dd0186d021389d4dd70ffda240Evan Cheng RHS = Tmp2; 43322b49c500838666dd0186d021389d4dd70ffda240Evan Cheng return; 43332b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 43342b49c500838666dd0186d021389d4dd70ffda240Evan Cheng 4335750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand LHSLo, LHSHi, RHSLo, RHSHi; 4336750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman ExpandOp(LHS, LHSLo, LHSHi); 4337638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen ExpandOp(RHS, RHSLo, RHSHi); 4338638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen ISD::CondCode CCCode = cast<CondCodeSDNode>(CC)->get(); 4339638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen 4340638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen if (VT==MVT::ppcf128) { 4341638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // FIXME: This generated code sucks. We want to generate 4342638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // FCMP crN, hi1, hi2 4343638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // BNE crN, L: 4344638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // FCMP crN, lo1, lo2 4345638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // The following can be improved, but not that much. 4346638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp1 = DAG.getSetCC(TLI.getSetCCResultTy(), LHSHi, RHSHi, ISD::SETEQ); 4347638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), LHSLo, RHSLo, CCCode); 4348638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp3 = DAG.getNode(ISD::AND, Tmp1.getValueType(), Tmp1, Tmp2); 4349638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp1 = DAG.getSetCC(TLI.getSetCCResultTy(), LHSHi, RHSHi, ISD::SETNE); 4350638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), LHSHi, RHSHi, CCCode); 4351638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp1 = DAG.getNode(ISD::AND, Tmp1.getValueType(), Tmp1, Tmp2); 4352638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp1 = DAG.getNode(ISD::OR, Tmp1.getValueType(), Tmp1, Tmp3); 4353638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp2 = SDOperand(); 4354638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen break; 4355638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen } 4356638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen 4357638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen switch (CCCode) { 4358750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETEQ: 4359750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETNE: 4360750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (RHSLo == RHSHi) 4361750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (ConstantSDNode *RHSCST = dyn_cast<ConstantSDNode>(RHSLo)) 4362750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (RHSCST->isAllOnesValue()) { 4363750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Comparison to -1. 4364750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::AND, LHSLo.getValueType(), LHSLo, LHSHi); 4365750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = RHSLo; 4366750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4367750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4368750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4369750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::XOR, LHSLo.getValueType(), LHSLo, RHSLo); 4370750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getNode(ISD::XOR, LHSLo.getValueType(), LHSHi, RHSHi); 4371750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::OR, Tmp1.getValueType(), Tmp1, Tmp2); 4372750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getConstant(0, Tmp1.getValueType()); 4373750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4374750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: 4375750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If this is a comparison of the sign bit, just look at the top part. 4376750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // X > -1, x < 0 4377750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (ConstantSDNode *CST = dyn_cast<ConstantSDNode>(RHS)) 4378750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if ((cast<CondCodeSDNode>(CC)->get() == ISD::SETLT && 4379750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CST->getValue() == 0) || // X < 0 4380750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman (cast<CondCodeSDNode>(CC)->get() == ISD::SETGT && 4381750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CST->isAllOnesValue())) { // X > -1 4382750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = LHSHi; 4383750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = RHSHi; 4384750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4385750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4386750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4387750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // FIXME: This generated code sucks. 4388750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman ISD::CondCode LowCC; 43892e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng switch (CCCode) { 4390750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "Unknown integer setcc!"); 4391750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLT: 4392750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULT: LowCC = ISD::SETULT; break; 4393750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGT: 4394750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGT: LowCC = ISD::SETUGT; break; 4395750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLE: 4396750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULE: LowCC = ISD::SETULE; break; 4397750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGE: 4398750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGE: LowCC = ISD::SETUGE; break; 4399750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4400750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4401750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Tmp1 = lo(op1) < lo(op2) // Always unsigned comparison 4402750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Tmp2 = hi(op1) < hi(op2) // Signedness depends on operands 4403750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // dest = hi(op1) == hi(op2) ? Tmp1 : Tmp2; 4404750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4405750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // NOTE: on targets without efficient SELECT of bools, we can always use 4406750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // this identity: (B1 ? B2 : B3) --> (B1 & B2)|(!B1&B3) 44072e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng TargetLowering::DAGCombinerInfo DagCombineInfo(DAG, false, true, NULL); 44082e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp1 = TLI.SimplifySetCC(TLI.getSetCCResultTy(), LHSLo, RHSLo, LowCC, 44092e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng false, DagCombineInfo); 44102e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng if (!Tmp1.Val) 44112e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp1 = DAG.getSetCC(TLI.getSetCCResultTy(), LHSLo, RHSLo, LowCC); 44122e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp2 = TLI.SimplifySetCC(TLI.getSetCCResultTy(), LHSHi, RHSHi, 44132e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng CCCode, false, DagCombineInfo); 44142e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng if (!Tmp2.Val) 441585dd3be7354f848231362bd70f6517c0e667f95dChris Lattner Tmp2 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultTy(), LHSHi, RHSHi,CC); 44162e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng 44172e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng ConstantSDNode *Tmp1C = dyn_cast<ConstantSDNode>(Tmp1.Val); 44182e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng ConstantSDNode *Tmp2C = dyn_cast<ConstantSDNode>(Tmp2.Val); 44192e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng if ((Tmp1C && Tmp1C->getValue() == 0) || 44202e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng (Tmp2C && Tmp2C->getValue() == 0 && 44212e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng (CCCode == ISD::SETLE || CCCode == ISD::SETGE || 44222e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng CCCode == ISD::SETUGE || CCCode == ISD::SETULE)) || 44232e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng (Tmp2C && Tmp2C->getValue() == 1 && 44242e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng (CCCode == ISD::SETLT || CCCode == ISD::SETGT || 44252e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng CCCode == ISD::SETUGT || CCCode == ISD::SETULT))) { 44262e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng // low part is known false, returns high part. 44272e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng // For LE / GE, if high part is known false, ignore the low part. 44282e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng // For LT / GT, if high part is known true, ignore the low part. 44292e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp1 = Tmp2; 44302e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp2 = SDOperand(); 44312e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng } else { 44322e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Result = TLI.SimplifySetCC(TLI.getSetCCResultTy(), LHSHi, RHSHi, 44332e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng ISD::SETEQ, false, DagCombineInfo); 44342e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng if (!Result.Val) 44352e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Result=DAG.getSetCC(TLI.getSetCCResultTy(), LHSHi, RHSHi, ISD::SETEQ); 44362e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Result = LegalizeOp(DAG.getNode(ISD::SELECT, Tmp1.getValueType(), 44372e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Result, Tmp1, Tmp2)); 44382e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp1 = Result; 44392e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp2 = SDOperand(); 44402e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng } 4441750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4442750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 44432b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 4444750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LHS = Tmp1; 4445750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman RHS = Tmp2; 4446750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman} 4447750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 444835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner/// ExpandBIT_CONVERT - Expand a BIT_CONVERT node into a store/load combination. 4449232348d66fcfe8f42f8b14cfacd2df3d00d2596eChris Lattner/// The resultant code need not be legal. Note that SrcOp is the input operand 4450232348d66fcfe8f42f8b14cfacd2df3d00d2596eChris Lattner/// to the BIT_CONVERT, not the BIT_CONVERT node itself. 445135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris LattnerSDOperand SelectionDAGLegalize::ExpandBIT_CONVERT(MVT::ValueType DestVT, 445235481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner SDOperand SrcOp) { 445335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Create the stack frame object. 445485dd3be7354f848231362bd70f6517c0e667f95dChris Lattner SDOperand FIPtr = DAG.CreateStackTemporary(DestVT); 445535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 445635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Emit a store to the stack slot. 44578b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDOperand Store = DAG.getStore(DAG.getEntryNode(), SrcOp, FIPtr, NULL, 0); 445835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Result is a load from the stack slot. 4459466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return DAG.getLoad(DestVT, Store, FIPtr, NULL, 0); 446035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner} 446135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 44624352cc9e217e4482ad53f5a7b92c3543f569eb6eChris LattnerSDOperand SelectionDAGLegalize::ExpandSCALAR_TO_VECTOR(SDNode *Node) { 44634352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Create a vector sized/aligned stack slot, store the value to element #0, 44644352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // then load the whole vector back out. 446585dd3be7354f848231362bd70f6517c0e667f95dChris Lattner SDOperand StackPtr = DAG.CreateStackTemporary(Node->getValueType(0)); 4466786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng SDOperand Ch = DAG.getStore(DAG.getEntryNode(), Node->getOperand(0), StackPtr, 44678b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng NULL, 0); 4468466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return DAG.getLoad(Node->getValueType(0), Ch, StackPtr, NULL, 0); 44694352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner} 44704352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 44714352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 4472ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner/// ExpandBUILD_VECTOR - Expand a BUILD_VECTOR node on targets that don't 447307a96765daedf180a7102d39fe56c499878312b7Dan Gohman/// support the operation, but do support the resultant vector type. 4474ce87215131efcc68dcf7fca61055ad783a7aeb0eChris LattnerSDOperand SelectionDAGLegalize::ExpandBUILD_VECTOR(SDNode *Node) { 4475ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4476ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // If the only non-undef value is the low element, turn this into a 447787100e0b83b808757bf44dabecd1d1048255d1adChris Lattner // SCALAR_TO_VECTOR node. If this is { X, X, X, X }, determine X. 4478033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng unsigned NumElems = Node->getNumOperands(); 4479ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner bool isOnlyLowElement = true; 448087100e0b83b808757bf44dabecd1d1048255d1adChris Lattner SDOperand SplatValue = Node->getOperand(0); 4481033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng std::map<SDOperand, std::vector<unsigned> > Values; 4482033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng Values[SplatValue].push_back(0); 44832eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner bool isConstant = true; 44842eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (!isa<ConstantFPSDNode>(SplatValue) && !isa<ConstantSDNode>(SplatValue) && 44852eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SplatValue.getOpcode() != ISD::UNDEF) 44862eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner isConstant = false; 44872eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 4488033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (unsigned i = 1; i < NumElems; ++i) { 4489033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng SDOperand V = Node->getOperand(i); 449089a1b380a475cbe477e50ff4b94335596b37f21aChris Lattner Values[V].push_back(i); 4491033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (V.getOpcode() != ISD::UNDEF) 4492ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner isOnlyLowElement = false; 4493033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (SplatValue != V) 449487100e0b83b808757bf44dabecd1d1048255d1adChris Lattner SplatValue = SDOperand(0,0); 44952eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 44962eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If this isn't a constant element or an undef, we can't use a constant 44972eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // pool load. 44982eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (!isa<ConstantFPSDNode>(V) && !isa<ConstantSDNode>(V) && 44992eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner V.getOpcode() != ISD::UNDEF) 45002eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner isConstant = false; 4501ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 4502ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4503ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (isOnlyLowElement) { 4504ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // If the low element is an undef too, then this whole things is an undef. 4505ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (Node->getOperand(0).getOpcode() == ISD::UNDEF) 4506ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner return DAG.getNode(ISD::UNDEF, Node->getValueType(0)); 4507ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Otherwise, turn this into a scalar_to_vector node. 4508ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner return DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), 4509ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Node->getOperand(0)); 4510ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 4511ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 45122eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If all elements are constants, create a load from the constant pool. 4513ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (isConstant) { 4514ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::ValueType VT = Node->getValueType(0); 4515ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner const Type *OpNTy = 4516ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::getTypeForValueType(Node->getOperand(0).getValueType()); 4517ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner std::vector<Constant*> CV; 4518033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (unsigned i = 0, e = NumElems; i != e; ++i) { 4519ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (ConstantFPSDNode *V = 4520ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner dyn_cast<ConstantFPSDNode>(Node->getOperand(i))) { 4521f04afdbb48568ef09f11fd10ac03426101f2dbf8Dale Johannesen CV.push_back(ConstantFP::get(OpNTy, V->getValueAPF())); 4522ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } else if (ConstantSDNode *V = 4523ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner dyn_cast<ConstantSDNode>(Node->getOperand(i))) { 4524b83eb6447ba155342598f0fabe1f08f5baa9164aReid Spencer CV.push_back(ConstantInt::get(OpNTy, V->getValue())); 4525ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } else { 4526ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner assert(Node->getOperand(i).getOpcode() == ISD::UNDEF); 4527ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner CV.push_back(UndefValue::get(OpNTy)); 4528ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 4529ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 45309d6565a5b1fbc4286d6ee638d8f47a3171a9ed7eReid Spencer Constant *CP = ConstantVector::get(CV); 4531ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand CPIdx = DAG.getConstantPool(CP, TLI.getPointerTy()); 4532466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return DAG.getLoad(VT, DAG.getEntryNode(), CPIdx, NULL, 0); 4533ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 45342eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 45352eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (SplatValue.Val) { // Splat of one value? 45362eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Build the shuffle constant vector: <0, 0, 0, 0> 45372eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner MVT::ValueType MaskVT = 45382eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner MVT::getIntVectorWithNumElements(NumElems); 453951eaa86758338d5935c0eff0469c418b1256aba7Dan Gohman SDOperand Zero = DAG.getConstant(0, MVT::getVectorElementType(MaskVT)); 45402eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner std::vector<SDOperand> ZeroVec(NumElems, Zero); 4541bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand SplatMask = DAG.getNode(ISD::BUILD_VECTOR, MaskVT, 4542bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &ZeroVec[0], ZeroVec.size()); 4543033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 45442eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If the target supports VECTOR_SHUFFLE and this shuffle mask, use it. 45454352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (isShuffleLegal(Node->getValueType(0), SplatMask)) { 45462eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Get the splatted value into the low element of a vector register. 45472eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SDOperand LowValVec = 45482eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), SplatValue); 45492eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 45502eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Return shuffle(LowValVec, undef, <0,0,0,0>) 45512eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner return DAG.getNode(ISD::VECTOR_SHUFFLE, Node->getValueType(0), LowValVec, 45522eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner DAG.getNode(ISD::UNDEF, Node->getValueType(0)), 45532eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SplatMask); 45542eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner } 45552eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner } 45562eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 4557033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // If there are only two unique elements, we may be able to turn this into a 4558033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // vector shuffle. 4559033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (Values.size() == 2) { 4560033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // Build the shuffle constant vector: e.g. <0, 4, 0, 4> 4561033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng MVT::ValueType MaskVT = 4562033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng MVT::getIntVectorWithNumElements(NumElems); 4563033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng std::vector<SDOperand> MaskVec(NumElems); 4564033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng unsigned i = 0; 4565033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (std::map<SDOperand,std::vector<unsigned> >::iterator I=Values.begin(), 4566033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng E = Values.end(); I != E; ++I) { 4567033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (std::vector<unsigned>::iterator II = I->second.begin(), 4568033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng EE = I->second.end(); II != EE; ++II) 456951eaa86758338d5935c0eff0469c418b1256aba7Dan Gohman MaskVec[*II] = DAG.getConstant(i, MVT::getVectorElementType(MaskVT)); 4570033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng i += NumElems; 4571033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 4572bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand ShuffleMask = DAG.getNode(ISD::BUILD_VECTOR, MaskVT, 4573bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &MaskVec[0], MaskVec.size()); 4574033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 4575033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // If the target supports VECTOR_SHUFFLE and this shuffle mask, use it. 45764352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (TLI.isOperationLegal(ISD::SCALAR_TO_VECTOR, Node->getValueType(0)) && 45774352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner isShuffleLegal(Node->getValueType(0), ShuffleMask)) { 4578bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Ops; 4579033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for(std::map<SDOperand,std::vector<unsigned> >::iterator I=Values.begin(), 4580033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng E = Values.end(); I != E; ++I) { 4581033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng SDOperand Op = DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), 4582033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng I->first); 4583033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng Ops.push_back(Op); 4584033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 4585033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng Ops.push_back(ShuffleMask); 4586033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 4587033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // Return shuffle(LoValVec, HiValVec, <0,1,0,1>) 4588bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner return DAG.getNode(ISD::VECTOR_SHUFFLE, Node->getValueType(0), 4589bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &Ops[0], Ops.size()); 4590033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 4591033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 4592ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4593ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Otherwise, we can't handle this case efficiently. Allocate a sufficiently 4594ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // aligned object on the stack, store each element into it, then load 4595ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // the result as a vector. 4596ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::ValueType VT = Node->getValueType(0); 4597ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Create the stack frame object. 459885dd3be7354f848231362bd70f6517c0e667f95dChris Lattner SDOperand FIPtr = DAG.CreateStackTemporary(VT); 4599ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4600ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Emit a store of each element to the stack slot. 4601bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Stores; 4602ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner unsigned TypeByteSize = 4603ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::getSizeInBits(Node->getOperand(0).getValueType())/8; 4604ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Store (in the right endianness) the elements to memory. 4605ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 4606ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Ignore undef elements. 4607ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (Node->getOperand(i).getOpcode() == ISD::UNDEF) continue; 4608ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4609841c882f5dae8c953ea99b5824108313549cfaf8Chris Lattner unsigned Offset = TypeByteSize*i; 4610ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4611ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand Idx = DAG.getConstant(Offset, FIPtr.getValueType()); 4612ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Idx = DAG.getNode(ISD::ADD, FIPtr.getValueType(), FIPtr, Idx); 4613ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4614786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng Stores.push_back(DAG.getStore(DAG.getEntryNode(), Node->getOperand(i), Idx, 46158b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng NULL, 0)); 4616ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 4617ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4618ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand StoreChain; 4619ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (!Stores.empty()) // Not all undef elements? 4620bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner StoreChain = DAG.getNode(ISD::TokenFactor, MVT::Other, 4621bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &Stores[0], Stores.size()); 4622ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner else 4623ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner StoreChain = DAG.getEntryNode(); 4624ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4625ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Result is a load from the stack slot. 4626466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return DAG.getLoad(VT, StoreChain, FIPtr, NULL, 0); 4627ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner} 4628ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 46295b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattnervoid SelectionDAGLegalize::ExpandShiftParts(unsigned NodeOp, 46305b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand Op, SDOperand Amt, 46315b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand &Lo, SDOperand &Hi) { 46325b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner // Expand the subcomponents. 46335b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand LHSL, LHSH; 46345b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner ExpandOp(Op, LHSL, LHSH); 46355b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 4636bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand Ops[] = { LHSL, LHSH, Amt }; 4637f9f37fc52c444e34bad7846729ae5481a65e0a53Chris Lattner MVT::ValueType VT = LHSL.getValueType(); 4638f9f37fc52c444e34bad7846729ae5481a65e0a53Chris Lattner Lo = DAG.getNode(NodeOp, DAG.getNodeValueTypes(VT, VT), 2, Ops, 3); 46395b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner Hi = Lo.getValue(1); 46405b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner} 46415b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 46425b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 4643e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// ExpandShift - Try to find a clever way to expand this shift operation out to 4644e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// smaller elements. If we can't find a way that is more efficient than a 4645e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// libcall on this target, return false. Otherwise, return true with the 4646e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// low-parts expanded into Lo and Hi. 4647e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattnerbool SelectionDAGLegalize::ExpandShift(unsigned Opc, SDOperand Op,SDOperand Amt, 4648e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner SDOperand &Lo, SDOperand &Hi) { 4649e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner assert((Opc == ISD::SHL || Opc == ISD::SRA || Opc == ISD::SRL) && 4650e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner "This is not a shift!"); 4651f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman 4652e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner MVT::ValueType NVT = TLI.getTypeToTransformTo(Op.getValueType()); 4653f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman SDOperand ShAmt = LegalizeOp(Amt); 4654f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman MVT::ValueType ShTy = ShAmt.getValueType(); 4655f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman unsigned VTBits = MVT::getSizeInBits(Op.getValueType()); 4656f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman unsigned NVTBits = MVT::getSizeInBits(NVT); 4657f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman 46587a3c85583d523edb90aa957a02385254957c6e37Chris Lattner // Handle the case when Amt is an immediate. 4659f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (ConstantSDNode *CN = dyn_cast<ConstantSDNode>(Amt.Val)) { 4660f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman unsigned Cst = CN->getValue(); 4661f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman // Expand the incoming operand to be shifted, so that we have its parts 4662f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman SDOperand InL, InH; 4663f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman ExpandOp(Op, InL, InH); 4664f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman switch(Opc) { 4665f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SHL: 4666f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 4667f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 4668f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 4669f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 4670f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 4671f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SHL, NVT, InL, DAG.getConstant(Cst-NVTBits,ShTy)); 4672ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 4673ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = DAG.getConstant(0, NVT); 4674ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Hi = InL; 4675f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 4676f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::SHL, NVT, InL, DAG.getConstant(Cst, ShTy)); 4677f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::OR, NVT, 4678f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(Cst, ShTy)), 4679f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(NVTBits-Cst, ShTy))); 4680f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 4681f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 4682f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SRL: 4683f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 4684f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 4685f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 4686f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 4687f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::SRL, NVT, InH, DAG.getConstant(Cst-NVTBits,ShTy)); 4688f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 4689ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 4690ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = InH; 4691ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Hi = DAG.getConstant(0, NVT); 4692f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 4693f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::OR, NVT, 4694f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(Cst, ShTy)), 4695f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(NVTBits-Cst, ShTy))); 4696f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SRL, NVT, InH, DAG.getConstant(Cst, ShTy)); 4697f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 4698f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 4699f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SRA: 4700f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 4701edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = Lo = DAG.getNode(ISD::SRA, NVT, InH, 4702f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(NVTBits-1, ShTy)); 4703f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 4704edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Lo = DAG.getNode(ISD::SRA, NVT, InH, 4705f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(Cst-NVTBits, ShTy)); 4706edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = DAG.getNode(ISD::SRA, NVT, InH, 4707f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(NVTBits-1, ShTy)); 4708ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 4709ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = InH; 4710edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = DAG.getNode(ISD::SRA, NVT, InH, 4711ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner DAG.getConstant(NVTBits-1, ShTy)); 4712f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 4713f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::OR, NVT, 4714f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(Cst, ShTy)), 4715f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(NVTBits-Cst, ShTy))); 4716f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SRA, NVT, InH, DAG.getConstant(Cst, ShTy)); 4717f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 4718f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 4719f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 4720f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 47210ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 47220ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Okay, the shift amount isn't constant. However, if we can tell that it is 47230ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // >= 32 or < 32, we can still simplify it, without knowing the actual value. 47240ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner uint64_t Mask = NVTBits, KnownZero, KnownOne; 4725ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman DAG.ComputeMaskedBits(Amt, Mask, KnownZero, KnownOne); 47260ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 47270ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // If we know that the high bit of the shift amount is one, then we can do 47280ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // this as a couple of simple shifts. 47290ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner if (KnownOne & Mask) { 47300ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Mask out the high bit, which we know is set. 47310ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Amt = DAG.getNode(ISD::AND, Amt.getValueType(), Amt, 47320ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getConstant(NVTBits-1, Amt.getValueType())); 47330ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 47340ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Expand the incoming operand to be shifted, so that we have its parts 47350ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner SDOperand InL, InH; 47360ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner ExpandOp(Op, InL, InH); 47370ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner switch(Opc) { 47380ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SHL: 47390ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getConstant(0, NVT); // Low part is zero. 47400ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SHL, NVT, InL, Amt); // High part from Lo part. 47410ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 47420ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRL: 47430ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getConstant(0, NVT); // Hi part is zero. 47440ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::SRL, NVT, InH, Amt); // Lo part from Hi part. 47450ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 47460ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRA: 47470ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, InH, // Sign extend high part. 47480ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getConstant(NVTBits-1, Amt.getValueType())); 47490ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::SRA, NVT, InH, Amt); // Lo part from Hi part. 47500ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 47510ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 47520ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 47530ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 47540ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // If we know that the high bit of the shift amount is zero, then we can do 47550ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // this as a couple of simple shifts. 47560ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner if (KnownZero & Mask) { 47570ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Compute 32-amt. 47580ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner SDOperand Amt2 = DAG.getNode(ISD::SUB, Amt.getValueType(), 47590ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getConstant(NVTBits, Amt.getValueType()), 47600ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Amt); 47610ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 47620ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Expand the incoming operand to be shifted, so that we have its parts 47630ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner SDOperand InL, InH; 47640ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner ExpandOp(Op, InL, InH); 47650ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner switch(Opc) { 47660ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SHL: 47670ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::SHL, NVT, InL, Amt); 47680ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::OR, NVT, 47690ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SHL, NVT, InH, Amt), 47700ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SRL, NVT, InL, Amt2)); 47710ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 47720ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRL: 47730ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SRL, NVT, InH, Amt); 47740ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::OR, NVT, 47750ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SRL, NVT, InL, Amt), 47760ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SHL, NVT, InH, Amt2)); 47770ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 47780ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRA: 47790ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, InH, Amt); 47800ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::OR, NVT, 47810ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SRL, NVT, InL, Amt), 47820ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SHL, NVT, InH, Amt2)); 47830ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 47840ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 47850ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 47860ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 4787f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return false; 4788e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner} 478977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner 47909c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner 479177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// ExpandLibCall - Expand a node into a call to a libcall. If the result value 479277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// does not fit into a register, return the lo part and set the hi part to the 479377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// by-reg argument. If it does fit into a single register, return the result 479477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// and leave the Hi part unset. 479577e77a6aa0ab25a812947aed477220dd11220a18Chris LattnerSDOperand SelectionDAGLegalize::ExpandLibCall(const char *Name, SDNode *Node, 479647857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer bool isSigned, SDOperand &Hi) { 47976831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "Cannot overlap legalization of calls!"); 47986831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // The input chain to this libcall is the entry node of the function. 47996831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalizing the call will automatically add the previous call to the 48006831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // dependence. 48016831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand InChain = DAG.getEntryNode(); 48026831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 480377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner TargetLowering::ArgListTy Args; 480447857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TargetLowering::ArgListEntry Entry; 480577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 480677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner MVT::ValueType ArgVT = Node->getOperand(i).getValueType(); 480777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner const Type *ArgTy = MVT::getTypeForValueType(ArgVT); 480847857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Entry.Node = Node->getOperand(i); Entry.Ty = ArgTy; 4809d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov Entry.isSExt = isSigned; 481047857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Args.push_back(Entry); 481177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner } 481277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand Callee = DAG.getExternalSymbol(Name, TLI.getPointerTy()); 4813edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 48140d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner // Splice the libcall in wherever FindInputOutputChains tells us to. 481577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner const Type *RetTy = MVT::getTypeForValueType(Node->getValueType(0)); 48160d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner std::pair<SDOperand,SDOperand> CallInfo = 481747857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TLI.LowerCallTo(InChain, RetTy, isSigned, false, CallingConv::C, false, 4818adf6a965a321372c640845407195594835921eb4Chris Lattner Callee, Args, DAG); 48190d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner 48206831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalize the call sequence, starting with the chain. This will advance 48216831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // the LastCALLSEQ_END to the legalized version of the CALLSEQ_END node that 48226831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // was added by LowerCallTo (guaranteeing proper serialization of calls). 48236831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(CallInfo.second); 482499c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner SDOperand Result; 48250d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner switch (getTypeAction(CallInfo.first.getValueType())) { 482677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner default: assert(0 && "Unknown thing"); 482777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case Legal: 4828456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = CallInfo.first; 482999c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner break; 483077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case Expand: 483199c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner ExpandOp(CallInfo.first, Result, Hi); 483299c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner break; 483377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner } 483422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Result; 483522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 483622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 483722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 48384c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng/// ExpandIntToFP - Expand a [US]INT_TO_FP operation. 48394c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng/// 484022cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize:: 484122cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerExpandIntToFP(bool isSigned, MVT::ValueType DestTy, SDOperand Source) { 484222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(getTypeAction(Source.getValueType()) == Expand && 484322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner "This is not an expansion!"); 484422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(Source.getValueType() == MVT::i64 && "Only handle expand from i64!"); 484522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 484622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!isSigned) { 484722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(Source.getValueType() == MVT::i64 && 484822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner "This only works for 64-bit -> FP"); 484922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // The 64-bit value loaded will be incorrectly if the 'sign bit' of the 485022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // incoming integer is set. To handle this, we dynamically test to see if 485122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // it is set, and, if so, add a fudge factor. 485222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Lo, Hi; 485322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ExpandOp(Source, Lo, Hi); 485422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 485522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If this is unsigned, and not supported, first perform the conversion to 485622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // signed, then adjust the result if the sign bit is set. 485722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignedConv = ExpandIntToFP(true, DestTy, 485822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::BUILD_PAIR, Source.getValueType(), Lo, Hi)); 485922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 486022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignSet = DAG.getSetCC(TLI.getSetCCResultTy(), Hi, 486122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getConstant(0, Hi.getValueType()), 486222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ISD::SETLT); 486322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Zero = getIntPtrConstant(0), Four = getIntPtrConstant(4); 486422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CstOffset = DAG.getNode(ISD::SELECT, Zero.getValueType(), 486522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SignSet, Four, Zero); 486622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner uint64_t FF = 0x5f800000ULL; 486722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (TLI.isLittleEndian()) FF <<= 32; 486847857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer static Constant *FudgeFactor = ConstantInt::get(Type::Int64Ty, FF); 486922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 487022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CPIdx = DAG.getConstantPool(FudgeFactor, TLI.getPointerTy()); 487122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner CPIdx = DAG.getNode(ISD::ADD, TLI.getPointerTy(), CPIdx, CstOffset); 487222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand FudgeInReg; 487322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestTy == MVT::f32) 4874466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng FudgeInReg = DAG.getLoad(MVT::f32, DAG.getEntryNode(), CPIdx, NULL, 0); 4875118cd9dbbad3a47f37dc1b1529ef920e4d5e13f6Dale Johannesen else if (MVT::getSizeInBits(DestTy) > MVT::getSizeInBits(MVT::f32)) 48764c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng // FIXME: Avoid the extend by construction the right constantpool? 4877118cd9dbbad3a47f37dc1b1529ef920e4d5e13f6Dale Johannesen FudgeInReg = DAG.getExtLoad(ISD::EXTLOAD, DestTy, DAG.getEntryNode(), 48789e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen CPIdx, NULL, 0, MVT::f32); 48799e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen else 48809e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen assert(0 && "Unexpected conversion"); 48819e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen 48824c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng MVT::ValueType SCVT = SignedConv.getValueType(); 48834c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng if (SCVT != DestTy) { 48844c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng // Destination type needs to be expanded as well. The FADD now we are 48854c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng // constructing will be expanded into a libcall. 48864c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng if (MVT::getSizeInBits(SCVT) != MVT::getSizeInBits(DestTy)) { 48874c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng assert(SCVT == MVT::i32 && DestTy == MVT::f64); 48884c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng SignedConv = DAG.getNode(ISD::BUILD_PAIR, MVT::i64, 48894c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng SignedConv, SignedConv.getValue(1)); 48904c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng } 48914c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng SignedConv = DAG.getNode(ISD::BIT_CONVERT, DestTy, SignedConv); 48924c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng } 489322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::FADD, DestTy, SignedConv, FudgeInReg); 489422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 489522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 489622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Check to see if the target has a custom way to lower this. If so, use it. 489722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::SINT_TO_FP, Source.getValueType())) { 489822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "This action not implemented for this operation!"); 489922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 490022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Expand: 490122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // This case is handled below. 490222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: { 490322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand NV = TLI.LowerOperation(DAG.getNode(ISD::SINT_TO_FP, DestTy, 490422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Source), DAG); 490522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (NV.Val) 490622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return LegalizeOp(NV); 490722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // The target decided this was legal after all 490822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 490922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 491022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 491122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Expand the source, then glue it back together for the call. We must expand 491222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // the source in case it is shared (this pass of legalize must traverse it). 491322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SrcLo, SrcHi; 491422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ExpandOp(Source, SrcLo, SrcHi); 491522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Source = DAG.getNode(ISD::BUILD_PAIR, Source.getValueType(), SrcLo, SrcHi); 491622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 491756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC; 491822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestTy == MVT::f32) 491956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::SINTTOFP_I64_F32; 492022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner else { 492122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(DestTy == MVT::f64 && "Unknown fp value type!"); 492256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::SINTTOFP_I64_F64; 492322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 49246831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 49254c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng assert(TLI.getLibcallName(LC) && "Don't know how to expand this SINT_TO_FP!"); 49266831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Source = DAG.getNode(ISD::SINT_TO_FP, DestTy, Source); 49276831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand UnusedHiPart; 492856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng return ExpandLibCall(TLI.getLibcallName(LC), Source.Val, isSigned, 492956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng UnusedHiPart); 493022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 493122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 493222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandLegalINT_TO_FP - This function is responsible for legalizing a 493322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// INT_TO_FP operation of the specified operand when the target requests that 493422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we expand it. At this point, we know that the result and operand types are 493522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target. 493622cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandLegalINT_TO_FP(bool isSigned, 493722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Op0, 493822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType DestVT) { 493922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (Op0.getValueType() == MVT::i32) { 494022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // simple 32-bit [signed|unsigned] integer to float/double expansion 494122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 494258092e35a3368e130438cbc793c8f9dce2e4fe0fChris Lattner // get the stack frame index of a 8 byte buffer, pessimistically aligned 494322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MachineFunction &MF = DAG.getMachineFunction(); 494458092e35a3368e130438cbc793c8f9dce2e4fe0fChris Lattner const Type *F64Type = MVT::getTypeForValueType(MVT::f64); 494558092e35a3368e130438cbc793c8f9dce2e4fe0fChris Lattner unsigned StackAlign = 4946d2b7cec527a0efa552628378ebca7a8ca63bb45dChris Lattner (unsigned)TLI.getTargetData()->getPrefTypeAlignment(F64Type); 494758092e35a3368e130438cbc793c8f9dce2e4fe0fChris Lattner int SSFI = MF.getFrameInfo()->CreateStackObject(8, StackAlign); 494822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // get address of 8 byte buffer 494922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand StackSlot = DAG.getFrameIndex(SSFI, TLI.getPointerTy()); 495022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // word offset constant for Hi/Lo address computation 495122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand WordOff = DAG.getConstant(sizeof(int), TLI.getPointerTy()); 495222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // set up Hi and Lo (into buffer) address based on endian 4953408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner SDOperand Hi = StackSlot; 4954408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner SDOperand Lo = DAG.getNode(ISD::ADD, TLI.getPointerTy(), StackSlot,WordOff); 4955408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner if (TLI.isLittleEndian()) 4956408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner std::swap(Hi, Lo); 4957408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner 495822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // if signed map to unsigned space 495922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Op0Mapped; 496022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (isSigned) { 496122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // constant used to invert sign bit (signed to unsigned mapping) 496222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignBit = DAG.getConstant(0x80000000u, MVT::i32); 496322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op0Mapped = DAG.getNode(ISD::XOR, MVT::i32, Op0, SignBit); 496422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } else { 496522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op0Mapped = Op0; 496622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 496722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // store the lo of the constructed double - based on integer input 4968786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng SDOperand Store1 = DAG.getStore(DAG.getEntryNode(), 49698b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Op0Mapped, Lo, NULL, 0); 497022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // initial hi portion of constructed double 497122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand InitialHi = DAG.getConstant(0x43300000u, MVT::i32); 497222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // store the hi of the constructed double - biased exponent 49738b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDOperand Store2=DAG.getStore(Store1, InitialHi, Hi, NULL, 0); 497422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // load the constructed double 4975466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Load = DAG.getLoad(MVT::f64, Store2, StackSlot, NULL, 0); 497622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FP constant to bias correct the final result 497722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Bias = DAG.getConstantFP(isSigned ? 497822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner BitsToDouble(0x4330000080000000ULL) 497922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner : BitsToDouble(0x4330000000000000ULL), 498022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::f64); 498122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // subtract the bias 498222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Sub = DAG.getNode(ISD::FSUB, MVT::f64, Load, Bias); 498322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // final result 498422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Result; 498522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // handle final rounding 498622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestVT == MVT::f64) { 498722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // do nothing 498822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Result = Sub; 4989118cd9dbbad3a47f37dc1b1529ef920e4d5e13f6Dale Johannesen } else if (MVT::getSizeInBits(DestVT) < MVT::getSizeInBits(MVT::f64)) { 4990118cd9dbbad3a47f37dc1b1529ef920e4d5e13f6Dale Johannesen Result = DAG.getNode(ISD::FP_ROUND, DestVT, Sub); 4991118cd9dbbad3a47f37dc1b1529ef920e4d5e13f6Dale Johannesen } else if (MVT::getSizeInBits(DestVT) > MVT::getSizeInBits(MVT::f64)) { 4992118cd9dbbad3a47f37dc1b1529ef920e4d5e13f6Dale Johannesen Result = DAG.getNode(ISD::FP_EXTEND, DestVT, Sub); 499322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 499422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Result; 499522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 499622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(!isSigned && "Legalize cannot Expand SINT_TO_FP for i64 yet"); 499722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp1 = DAG.getNode(ISD::SINT_TO_FP, DestVT, Op0); 499822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 499922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignSet = DAG.getSetCC(TLI.getSetCCResultTy(), Op0, 500022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getConstant(0, Op0.getValueType()), 500122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ISD::SETLT); 500222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Zero = getIntPtrConstant(0), Four = getIntPtrConstant(4); 500322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CstOffset = DAG.getNode(ISD::SELECT, Zero.getValueType(), 500422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SignSet, Four, Zero); 500522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 500622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the sign bit of the integer is set, the large number will be treated 500722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // as a negative number. To counteract this, the dynamic code adds an 500822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // offset depending on the data type. 500922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner uint64_t FF; 501022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (Op0.getValueType()) { 501122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Unsupported integer type!"); 501222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i8 : FF = 0x43800000ULL; break; // 2^8 (as a float) 501322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i16: FF = 0x47800000ULL; break; // 2^16 (as a float) 501422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i32: FF = 0x4F800000ULL; break; // 2^32 (as a float) 501522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i64: FF = 0x5F800000ULL; break; // 2^64 (as a float) 501622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 501722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (TLI.isLittleEndian()) FF <<= 32; 501847857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer static Constant *FudgeFactor = ConstantInt::get(Type::Int64Ty, FF); 501922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 502022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CPIdx = DAG.getConstantPool(FudgeFactor, TLI.getPointerTy()); 502122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner CPIdx = DAG.getNode(ISD::ADD, TLI.getPointerTy(), CPIdx, CstOffset); 502222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand FudgeInReg; 502322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestVT == MVT::f32) 5024466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng FudgeInReg = DAG.getLoad(MVT::f32, DAG.getEntryNode(), CPIdx, NULL, 0); 502522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner else { 502673328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen FudgeInReg = LegalizeOp(DAG.getExtLoad(ISD::EXTLOAD, DestVT, 502722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getEntryNode(), CPIdx, 5028466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng NULL, 0, MVT::f32)); 502922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 503022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 503122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::FADD, DestVT, Tmp1, FudgeInReg); 503222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 503322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 503422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// PromoteLegalINT_TO_FP - This function is responsible for legalizing a 503522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// *INT_TO_FP operation of the specified operand when the target requests that 503622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we promote it. At this point, we know that the result and operand types are 503722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target, and that there is a legal UINT_TO_FP or SINT_TO_FP 503822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// operation that takes a larger input. 503922cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::PromoteLegalINT_TO_FP(SDOperand LegalOp, 504022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType DestVT, 504122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner bool isSigned) { 504222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // First step, figure out the appropriate *INT_TO_FP operation to use. 504322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType NewInTy = LegalOp.getValueType(); 504422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 504522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner unsigned OpToUse = 0; 504622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 504722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Scan for the appropriate larger type to use. 504822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner while (1) { 504922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner NewInTy = (MVT::ValueType)(NewInTy+1); 505022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(MVT::isInteger(NewInTy) && "Ran out of possibilities!"); 505122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 505222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports SINT_TO_FP of this type, use it. 505322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::SINT_TO_FP, NewInTy)) { 505422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 505522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 505622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewInTy)) 505722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 505822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 505922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 506022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::SINT_TO_FP; 506122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 506222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 506322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 506422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (isSigned) continue; 506522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 506622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports UINT_TO_FP of this type, use it. 506722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::UINT_TO_FP, NewInTy)) { 506822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 506922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 507022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewInTy)) 507122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 507222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 507322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 507422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::UINT_TO_FP; 507522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 507622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 507722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 507822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 507922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Otherwise, try a larger type. 508022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 508122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 508222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Okay, we found the operation and type to use. Zero extend our input to the 508322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // desired type then run the operation on it. 508422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(OpToUse, DestVT, 508522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(isSigned ? ISD::SIGN_EXTEND : ISD::ZERO_EXTEND, 508622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner NewInTy, LegalOp)); 508777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner} 508877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner 508922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// PromoteLegalFP_TO_INT - This function is responsible for legalizing a 509022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// FP_TO_*INT operation of the specified operand when the target requests that 509122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we promote it. At this point, we know that the result and operand types are 509222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target, and that there is a legal FP_TO_UINT or FP_TO_SINT 509322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// operation that returns a larger result. 509422cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::PromoteLegalFP_TO_INT(SDOperand LegalOp, 509522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType DestVT, 509622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner bool isSigned) { 509722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // First step, figure out the appropriate FP_TO*INT operation to use. 509822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType NewOutTy = DestVT; 50999c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner 510022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner unsigned OpToUse = 0; 5101e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner 510222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Scan for the appropriate larger type to use. 510322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner while (1) { 510422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner NewOutTy = (MVT::ValueType)(NewOutTy+1); 510522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(MVT::isInteger(NewOutTy) && "Ran out of possibilities!"); 510666de05b606cf31f1f23ed0c4eb1f097738cd1506Chris Lattner 510722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports FP_TO_SINT returning this type, use it. 510822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::FP_TO_SINT, NewOutTy)) { 510922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 511022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 511122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewOutTy)) 511222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 511322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 511422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 511522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::FP_TO_SINT; 511622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 511722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 511822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 5119e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner 512022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports FP_TO_UINT of this type, use it. 512122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::FP_TO_UINT, NewOutTy)) { 512222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 512322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 512422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewOutTy)) 512522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 512622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 512722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 512822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::FP_TO_UINT; 512922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 5130e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner } 513122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 51320d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner 513322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Otherwise, try a larger type. 5134a88a260dbd874a3bdd3e47f4f15ab0d7c7803044Chris Lattner } 5135a88a260dbd874a3bdd3e47f4f15ab0d7c7803044Chris Lattner 513622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Okay, we found the operation and type to use. Truncate the result of the 513722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // extended FP_TO_*INT operation to the desired size. 513822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::TRUNCATE, DestVT, 513922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(OpToUse, NewOutTy, LegalOp)); 514022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 514113689e2009e71f7982d1313ed699e0e6a50157d0Chris Lattner 514222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandBSWAP - Open code the operations for BSWAP of the specified operation. 514322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// 514422cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandBSWAP(SDOperand Op) { 514522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 514622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType SHVT = TLI.getShiftAmountTy(); 514722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp1, Tmp2, Tmp3, Tmp4, Tmp5, Tmp6, Tmp7, Tmp8; 514822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (VT) { 514922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Unhandled Expand type in BSWAP!"); abort(); 515022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i16: 515122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 515222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 515322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp1, Tmp2); 515422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i32: 515522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(24, SHVT)); 515622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 515722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 515822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(24, SHVT)); 515922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::AND, VT, Tmp3, DAG.getConstant(0xFF0000, VT)); 516022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::AND, VT, Tmp2, DAG.getConstant(0xFF00, VT)); 516122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp3); 516222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::OR, VT, Tmp2, Tmp1); 516322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp4, Tmp2); 516422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i64: 516522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(56, SHVT)); 516622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp7 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(40, SHVT)); 516722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(24, SHVT)); 516822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp5 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 516922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 517022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(24, SHVT)); 517122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(40, SHVT)); 517222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(56, SHVT)); 517322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp7 = DAG.getNode(ISD::AND, VT, Tmp7, DAG.getConstant(255ULL<<48, VT)); 517422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::AND, VT, Tmp6, DAG.getConstant(255ULL<<40, VT)); 517522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp5 = DAG.getNode(ISD::AND, VT, Tmp5, DAG.getConstant(255ULL<<32, VT)); 517622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::AND, VT, Tmp4, DAG.getConstant(255ULL<<24, VT)); 517722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::AND, VT, Tmp3, DAG.getConstant(255ULL<<16, VT)); 517822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::AND, VT, Tmp2, DAG.getConstant(255ULL<<8 , VT)); 517922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::OR, VT, Tmp8, Tmp7); 518022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::OR, VT, Tmp6, Tmp5); 518122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp3); 518222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::OR, VT, Tmp2, Tmp1); 518322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::OR, VT, Tmp8, Tmp6); 518422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp2); 518522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp8, Tmp4); 51860d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner } 518777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner} 5188edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 518922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandBitCount - Expand the specified bitcount instruction into operations. 519022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// 519122cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandBitCount(unsigned Opc, SDOperand Op) { 519222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (Opc) { 519322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Cannot expand this yet!"); 519422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTPOP: { 519522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner static const uint64_t mask[6] = { 519622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x5555555555555555ULL, 0x3333333333333333ULL, 519722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x0F0F0F0F0F0F0F0FULL, 0x00FF00FF00FF00FFULL, 519822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x0000FFFF0000FFFFULL, 0x00000000FFFFFFFFULL 519922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner }; 520022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 520122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType ShVT = TLI.getShiftAmountTy(); 5202b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman unsigned len = MVT::getSizeInBits(VT); 520322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner for (unsigned i = 0; (1U << i) <= (len / 2); ++i) { 520422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner //x = (x & mask[i][len/8]) + (x >> (1 << i) & mask[i][len/8]) 520522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp2 = DAG.getConstant(mask[i], VT); 520622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getConstant(1ULL << i, ShVT); 520722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::ADD, VT, DAG.getNode(ISD::AND, VT, Op, Tmp2), 520822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::AND, VT, 520922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::SRL, VT, Op, Tmp3),Tmp2)); 521022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 521122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Op; 521222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 521322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTLZ: { 521422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // for now, we do this: 521522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >> 1); 521622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >> 2); 521722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // ... 521822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >>16); 521922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >>32); // for 64-bit input 522022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // return popcount(~x); 522122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // 522222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // but see also: http://www.hackersdelight.org/HDcode/nlz.cc 522322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 522422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType ShVT = TLI.getShiftAmountTy(); 5225b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman unsigned len = MVT::getSizeInBits(VT); 522622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner for (unsigned i = 0; (1U << i) <= (len / 2); ++i) { 522722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getConstant(1ULL << i, ShVT); 522822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::OR, VT, Op, DAG.getNode(ISD::SRL, VT, Op, Tmp3)); 522922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 523022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::XOR, VT, Op, DAG.getConstant(~0ULL, VT)); 523122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::CTPOP, VT, Op); 523222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 523322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTTZ: { 523422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // for now, we use: { return popcount(~x & (x - 1)); } 523522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // unless the target has ctlz but not ctpop, in which case we use: 523622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // { return 32 - nlz(~x & (x-1)); } 523722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // see also http://www.hackersdelight.org/HDcode/ntz.cc 523822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 523922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp2 = DAG.getConstant(~0ULL, VT); 524022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getNode(ISD::AND, VT, 524122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::XOR, VT, Op, Tmp2), 524222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::SUB, VT, Op, DAG.getConstant(1, VT))); 524322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If ISD::CTLZ is legal and CTPOP isn't, then do that instead. 524422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isOperationLegal(ISD::CTPOP, VT) && 524522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner TLI.isOperationLegal(ISD::CTLZ, VT)) 524622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::SUB, VT, 5247b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(VT), VT), 524822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::CTLZ, VT, Tmp3)); 524922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::CTPOP, VT, Tmp3); 525022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 525122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 525222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 5253e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 52543e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// ExpandOp - Expand the specified SDOperand into its two component pieces 52553e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// Lo&Hi. Note that the Op MUST be an expanded type. As a result of this, the 52563e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// LegalizeNodes map is filled in for any results that are not expanded, the 52573e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// ExpandedNodes map is filled in for any results that are expanded, and the 52583e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// Lo/Hi values are returned. 52593e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnervoid SelectionDAGLegalize::ExpandOp(SDOperand Op, SDOperand &Lo, SDOperand &Hi){ 52603e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner MVT::ValueType VT = Op.getValueType(); 526171c42a0190300a8903aaea80467b88f15f327ea9Chris Lattner MVT::ValueType NVT = TLI.getTypeToTransformTo(VT); 52623e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDNode *Node = Op.Val; 52633e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(getTypeAction(VT) == Expand && "Not an expanded type!"); 52641a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng assert(((MVT::isInteger(NVT) && NVT < VT) || MVT::isFloatingPoint(VT) || 52657f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::isVector(VT)) && 52663e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner "Cannot expand to FP value or to larger int value!"); 52673e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 52686fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner // See if we already expanded it. 526940030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner DenseMap<SDOperand, std::pair<SDOperand, SDOperand> >::iterator I 52706fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner = ExpandedNodes.find(Op); 52716fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner if (I != ExpandedNodes.end()) { 52726fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner Lo = I->second.first; 52736fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner Hi = I->second.second; 52746fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner return; 52753e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 52763e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 52773e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getOpcode()) { 5278348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner case ISD::CopyFromReg: 5279348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner assert(0 && "CopyFromReg must be legal!"); 52806eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen case ISD::FP_ROUND_INREG: 52816eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen if (VT == MVT::ppcf128 && 52826eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen TLI.getOperationAction(ISD::FP_ROUND_INREG, VT) == 52836eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen TargetLowering::Custom) { 5284fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen SDOperand SrcLo, SrcHi, Src; 5285fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen ExpandOp(Op.getOperand(0), SrcLo, SrcHi); 5286fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen Src = DAG.getNode(ISD::BUILD_PAIR, VT, SrcLo, SrcHi); 5287fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen SDOperand Result = TLI.LowerOperation( 5288fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getNode(ISD::FP_ROUND_INREG, VT, Src, Op.getOperand(1)), DAG); 52896eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen assert(Result.Val->getOpcode() == ISD::BUILD_PAIR); 52906eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen Lo = Result.Val->getOperand(0); 52916eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen Hi = Result.Val->getOperand(1); 52926eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen break; 52936eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen } 52946eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen // fall through 5295348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner default: 5296e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 529739833585556a69de12053ca1e104fe7edfd86cbdDan Gohman cerr << "NODE: "; Node->dump(&DAG); cerr << "\n"; 5298e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 52993e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(0 && "Do not know how to expand this operator!"); 53003e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner abort(); 5301fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: 5302aa975c1c4785a1d7930f2cd1026cb40ce54d21e4Evan Cheng NVT = TLI.getTypeToExpandTo(VT); 5303fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Lo = DAG.getNode(ISD::UNDEF, NVT); 5304fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Hi = DAG.getNode(ISD::UNDEF, NVT); 5305fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 53063e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::Constant: { 53073e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner uint64_t Cst = cast<ConstantSDNode>(Node)->getValue(); 53083e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Lo = DAG.getConstant(Cst, NVT); 53093e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getConstant(Cst >> MVT::getSizeInBits(NVT), NVT); 53103e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 53113e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 5312004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng case ISD::ConstantFP: { 5313004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng ConstantFPSDNode *CFP = cast<ConstantFPSDNode>(Node); 5314a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen if (CFP->getValueType(0) == MVT::ppcf128) { 5315a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen APInt api = CFP->getValueAPF().convertToAPInt(); 5316a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen Lo = DAG.getConstantFP(APFloat(APInt(64, 1, &api.getRawData()[1])), 5317a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen MVT::f64); 5318a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen Hi = DAG.getConstantFP(APFloat(APInt(64, 1, &api.getRawData()[0])), 5319a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen MVT::f64); 5320a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen break; 5321a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen } 5322279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng Lo = ExpandConstantFP(CFP, false, DAG, TLI); 53239f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng if (getTypeAction(Lo.getValueType()) == Expand) 53249f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng ExpandOp(Lo, Lo, Hi); 5325004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng break; 5326004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 5327d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner case ISD::BUILD_PAIR: 53288137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Return the operands. 53298137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = Node->getOperand(0); 53308137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = Node->getOperand(1); 5331d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner break; 533258f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner 533358f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner case ISD::SIGN_EXTEND_INREG: 533458f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 53354bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner // sext_inreg the low part if needed. 53364bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner Lo = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Lo, Node->getOperand(1)); 53374bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner 53384bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner // The high part gets the sign extension from the lo-part. This handles 53394bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner // things like sextinreg V:i64 from i8. 534058f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, Lo, 534158f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner DAG.getConstant(MVT::getSizeInBits(NVT)-1, 534258f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner TLI.getShiftAmountTy())); 534358f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner break; 5344d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner 5345d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: { 5346d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman ExpandOp(Node->getOperand(0), Lo, Hi); 5347d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman SDOperand TempLo = DAG.getNode(ISD::BSWAP, NVT, Hi); 5348d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Hi = DAG.getNode(ISD::BSWAP, NVT, Lo); 5349d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Lo = TempLo; 5350d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 5351d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman } 5352d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman 5353edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner case ISD::CTPOP: 5354edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 53559b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner Lo = DAG.getNode(ISD::ADD, NVT, // ctpop(HL) -> ctpop(H)+ctpop(L) 53569b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner DAG.getNode(ISD::CTPOP, NVT, Lo), 53579b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner DAG.getNode(ISD::CTPOP, NVT, Hi)); 5358edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner Hi = DAG.getConstant(0, NVT); 5359edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner break; 5360edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 536139a8f336305a492fc6d2625f39f08968185616d2Chris Lattner case ISD::CTLZ: { 536239a8f336305a492fc6d2625f39f08968185616d2Chris Lattner // ctlz (HL) -> ctlz(H) != 32 ? ctlz(H) : (ctlz(L)+32) 53633becf2026bec881a60cbbe0031d8c51f4d6d4e28Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 536439a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand BitsC = DAG.getConstant(MVT::getSizeInBits(NVT), NVT); 536539a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand HLZ = DAG.getNode(ISD::CTLZ, NVT, Hi); 53667cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner SDOperand TopNotZero = DAG.getSetCC(TLI.getSetCCResultTy(), HLZ, BitsC, 53677cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETNE); 536839a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand LowPart = DAG.getNode(ISD::CTLZ, NVT, Lo); 536939a8f336305a492fc6d2625f39f08968185616d2Chris Lattner LowPart = DAG.getNode(ISD::ADD, NVT, LowPart, BitsC); 537039a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 537139a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, TopNotZero, HLZ, LowPart); 537239a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Hi = DAG.getConstant(0, NVT); 537339a8f336305a492fc6d2625f39f08968185616d2Chris Lattner break; 537439a8f336305a492fc6d2625f39f08968185616d2Chris Lattner } 537539a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 537639a8f336305a492fc6d2625f39f08968185616d2Chris Lattner case ISD::CTTZ: { 537739a8f336305a492fc6d2625f39f08968185616d2Chris Lattner // cttz (HL) -> cttz(L) != 32 ? cttz(L) : (cttz(H)+32) 53783becf2026bec881a60cbbe0031d8c51f4d6d4e28Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 537939a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand BitsC = DAG.getConstant(MVT::getSizeInBits(NVT), NVT); 538039a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand LTZ = DAG.getNode(ISD::CTTZ, NVT, Lo); 53817cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner SDOperand BotNotZero = DAG.getSetCC(TLI.getSetCCResultTy(), LTZ, BitsC, 53827cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETNE); 538339a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand HiPart = DAG.getNode(ISD::CTTZ, NVT, Hi); 538439a8f336305a492fc6d2625f39f08968185616d2Chris Lattner HiPart = DAG.getNode(ISD::ADD, NVT, HiPart, BitsC); 538539a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 538639a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, BotNotZero, LTZ, HiPart); 538739a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Hi = DAG.getConstant(0, NVT); 538839a8f336305a492fc6d2625f39f08968185616d2Chris Lattner break; 538939a8f336305a492fc6d2625f39f08968185616d2Chris Lattner } 5390edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 5391acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAARG: { 53928137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Ch = Node->getOperand(0); // Legalize the chain. 53938137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Ptr = Node->getOperand(1); // Legalize the pointer. 5394acc398c195a697795bff3245943d104eb19192b9Nate Begeman Lo = DAG.getVAArg(NVT, Ch, Ptr, Node->getOperand(2)); 5395acc398c195a697795bff3245943d104eb19192b9Nate Begeman Hi = DAG.getVAArg(NVT, Lo.getValue(1), Ptr, Node->getOperand(2)); 5396acc398c195a697795bff3245943d104eb19192b9Nate Begeman 5397acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Remember that we legalized the chain. 53988137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = LegalizeOp(Hi); 5399acc398c195a697795bff3245943d104eb19192b9Nate Begeman AddLegalizedOperand(Op.getValue(1), Hi.getValue(1)); 5400acc398c195a697795bff3245943d104eb19192b9Nate Begeman if (!TLI.isLittleEndian()) 5401acc398c195a697795bff3245943d104eb19192b9Nate Begeman std::swap(Lo, Hi); 5402acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 5403acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 5404acc398c195a697795bff3245943d104eb19192b9Nate Begeman 54053e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::LOAD: { 5406466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LoadSDNode *LD = cast<LoadSDNode>(Node); 5407466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Ch = LD->getChain(); // Legalize the chain. 5408466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Ptr = LD->getBasePtr(); // Legalize the pointer. 5409466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ISD::LoadExtType ExtType = LD->getExtensionType(); 5410d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman int SVOffset = LD->getSrcValueOffset(); 5411d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman unsigned Alignment = LD->getAlignment(); 5412d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman bool isVolatile = LD->isVolatile(); 5413466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5414466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::NON_EXTLOAD) { 5415d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman Lo = DAG.getLoad(NVT, Ch, Ptr, LD->getSrcValue(), SVOffset, 5416d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman isVolatile, Alignment); 5417004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng if (VT == MVT::f32 || VT == MVT::f64) { 5418004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // f32->i32 or f64->i64 one to one expansion. 5419004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // Remember that we legalized the chain. 5420004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Lo.getValue(1))); 54219f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng // Recursively expand the new load. 54229f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng if (getTypeAction(NVT) == Expand) 54239f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng ExpandOp(Lo, Lo, Hi); 5424004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng break; 5425004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 5426466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5427466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Increment the pointer to the other half. 5428466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng unsigned IncrementSize = MVT::getSizeInBits(Lo.getValueType())/8; 5429466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 5430466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng getIntPtrConstant(IncrementSize)); 54317f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SVOffset += IncrementSize; 5432d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman if (Alignment > IncrementSize) 5433d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman Alignment = IncrementSize; 5434d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman Hi = DAG.getLoad(NVT, Ch, Ptr, LD->getSrcValue(), SVOffset, 5435d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman isVolatile, Alignment); 5436466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5437466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Build a factor node to remember that this load is independent of the 5438466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // other one. 5439466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand TF = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 5440466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi.getValue(1)); 5441466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5442466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Remember that we legalized the chain. 5443466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(Op.getValue(1), LegalizeOp(TF)); 5444466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (!TLI.isLittleEndian()) 5445466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng std::swap(Lo, Hi); 5446466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else { 54472e49f090f9656af7d5ed4d5c4e9fa26af59c7233Evan Cheng MVT::ValueType EVT = LD->getLoadedVT(); 5448548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng 5449b6210fc92b643a5440d8373b5f36b6e579b5feb8Dale Johannesen if ((VT == MVT::f64 && EVT == MVT::f32) || 5450b6210fc92b643a5440d8373b5f36b6e579b5feb8Dale Johannesen (VT == MVT::ppcf128 && (EVT==MVT::f64 || EVT==MVT::f32))) { 5451548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng // f64 = EXTLOAD f32 should expand to LOAD, FP_EXTEND 5452548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng SDOperand Load = DAG.getLoad(EVT, Ch, Ptr, LD->getSrcValue(), 5453d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 5454548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng // Remember that we legalized the chain. 5455548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Load.getValue(1))); 5456548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng ExpandOp(DAG.getNode(ISD::FP_EXTEND, VT, Load), Lo, Hi); 5457548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng break; 5458548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng } 5459466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5460466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (EVT == NVT) 5461466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Lo = DAG.getLoad(NVT, Ch, Ptr, LD->getSrcValue(), 5462d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 5463466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng else 5464466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Lo = DAG.getExtLoad(ExtType, NVT, Ch, Ptr, LD->getSrcValue(), 5465d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, EVT, isVolatile, 5466d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman Alignment); 5467466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5468466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Remember that we legalized the chain. 5469466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Lo.getValue(1))); 5470466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5471466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::SEXTLOAD) { 5472466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // The high part is obtained by SRA'ing all but one of the bits of the 5473466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // lo part. 5474466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng unsigned LoSize = MVT::getSizeInBits(Lo.getValueType()); 5475466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi = DAG.getNode(ISD::SRA, NVT, Lo, 5476466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng DAG.getConstant(LoSize-1, TLI.getShiftAmountTy())); 5477466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else if (ExtType == ISD::ZEXTLOAD) { 5478466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // The high part is just a zero. 5479466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi = DAG.getConstant(0, NVT); 5480466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else /* if (ExtType == ISD::EXTLOAD) */ { 5481466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // The high part is undefined. 5482466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi = DAG.getNode(ISD::UNDEF, NVT); 5483466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 5484466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 54853e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 54863e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 54873e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::AND: 54883e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::OR: 54893e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::XOR: { // Simple logical operators -> two trivial pieces. 54903e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand LL, LH, RL, RH; 54913e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(0), LL, LH); 54923e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(1), RL, RH); 54933e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Lo = DAG.getNode(Node->getOpcode(), NVT, LL, RL); 54943e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getNode(Node->getOpcode(), NVT, LH, RH); 54953e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 54963e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 54973e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SELECT: { 5498456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand LL, LH, RL, RH; 54993e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(1), LL, LH); 55003e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(2), RL, RH); 550119103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (getTypeAction(NVT) == Expand) 550219103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng NVT = TLI.getTypeToExpandTo(NVT); 5503456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), LL, RL); 550419103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (VT != MVT::f32) 550519103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng Hi = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), LH, RH); 55063e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 55073e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 55089373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case ISD::SELECT_CC: { 55099373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman SDOperand TL, TH, FL, FH; 55109373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman ExpandOp(Node->getOperand(2), TL, TH); 55119373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman ExpandOp(Node->getOperand(3), FL, FH); 551219103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (getTypeAction(NVT) == Expand) 551319103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng NVT = TLI.getTypeToExpandTo(NVT); 55149373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Lo = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 55159373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Node->getOperand(1), TL, FL, Node->getOperand(4)); 551619103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (VT != MVT::f32) 551719103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng Hi = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 551819103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng Node->getOperand(1), TH, FH, Node->getOperand(4)); 55199373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 55209373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 55218137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::ANY_EXTEND: 552213c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner // The low part is any extension of the input (which degenerates to a copy). 55238137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::ANY_EXTEND, NVT, Node->getOperand(0)); 552413c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner // The high part is undefined. 552513c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Hi = DAG.getNode(ISD::UNDEF, NVT); 552613c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner break; 55273e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SIGN_EXTEND: { 55283e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The low part is just a sign extension of the input (which degenerates to 55293e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // a copy). 55308137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::SIGN_EXTEND, NVT, Node->getOperand(0)); 5531edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 55323e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The high part is obtained by SRA'ing all but one of the bits of the lo 55333e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // part. 55342dad454af674cb41a14a85ad6ce5c85c43959acdChris Lattner unsigned LoSize = MVT::getSizeInBits(Lo.getValueType()); 55358137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, Lo, 55368137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner DAG.getConstant(LoSize-1, TLI.getShiftAmountTy())); 55373e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 55383e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 55398137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::ZERO_EXTEND: 55403e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The low part is just a zero extension of the input (which degenerates to 55413e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // a copy). 55428137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::ZERO_EXTEND, NVT, Node->getOperand(0)); 5543edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 55443e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The high part is just a zero. 55453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getConstant(0, NVT); 55463e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 554735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 55484c948eb373779718e5be36d7674382b52114bf65Chris Lattner case ISD::TRUNCATE: { 55494c948eb373779718e5be36d7674382b52114bf65Chris Lattner // The input value must be larger than this value. Expand *it*. 55504c948eb373779718e5be36d7674382b52114bf65Chris Lattner SDOperand NewLo; 55514c948eb373779718e5be36d7674382b52114bf65Chris Lattner ExpandOp(Node->getOperand(0), NewLo, Hi); 55524c948eb373779718e5be36d7674382b52114bf65Chris Lattner 55534c948eb373779718e5be36d7674382b52114bf65Chris Lattner // The low part is now either the right size, or it is closer. If not the 55544c948eb373779718e5be36d7674382b52114bf65Chris Lattner // right size, make an illegal truncate so we recursively expand it. 55554c948eb373779718e5be36d7674382b52114bf65Chris Lattner if (NewLo.getValueType() != Node->getValueType(0)) 55564c948eb373779718e5be36d7674382b52114bf65Chris Lattner NewLo = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), NewLo); 55574c948eb373779718e5be36d7674382b52114bf65Chris Lattner ExpandOp(NewLo, Lo, Hi); 55584c948eb373779718e5be36d7674382b52114bf65Chris Lattner break; 55594c948eb373779718e5be36d7674382b52114bf65Chris Lattner } 55604c948eb373779718e5be36d7674382b52114bf65Chris Lattner 556135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: { 5562f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner SDOperand Tmp; 5563f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner if (TLI.getOperationAction(ISD::BIT_CONVERT, VT) == TargetLowering::Custom){ 5564f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner // If the target wants to, allow it to lower this itself. 5565f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 5566f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 5567f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner case Legal: Tmp = LegalizeOp(Node->getOperand(0)); break; 5568f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner case Promote: Tmp = PromoteOp (Node->getOperand(0)); break; 5569f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner } 5570f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner Tmp = TLI.LowerOperation(DAG.getNode(ISD::BIT_CONVERT, VT, Tmp), DAG); 5571f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner } 5572f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner 55731a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng // f32 / f64 must be expanded to i32 / i64. 557413acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (VT == MVT::f32 || VT == MVT::f64) { 557513acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Lo = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 557619103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (getTypeAction(NVT) == Expand) 557719103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng ExpandOp(Lo, Lo, Hi); 55787b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng break; 55797b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng } 55807b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng 55817b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng // If source operand will be expanded to the same type as VT, i.e. 55827b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng // i64 <- f64, i32 <- f32, expand the source operand instead. 55837b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng MVT::ValueType VT0 = Node->getOperand(0).getValueType(); 55847b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng if (getTypeAction(VT0) == Expand && TLI.getTypeToTransformTo(VT0) == VT) { 55857b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng ExpandOp(Node->getOperand(0), Lo, Hi); 55861a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 55871a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng } 55881a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng 5589f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner // Turn this into a load/store pair by default. 5590f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner if (Tmp.Val == 0) 559113acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Tmp = ExpandBIT_CONVERT(VT, Node->getOperand(0)); 5592f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner 559335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner ExpandOp(Tmp, Lo, Hi); 559435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 559535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 5596f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 55978137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::READCYCLECOUNTER: 5598308575be66ec3870d27b19df044fda18448feb41Chris Lattner assert(TLI.getOperationAction(ISD::READCYCLECOUNTER, VT) == 5599308575be66ec3870d27b19df044fda18448feb41Chris Lattner TargetLowering::Custom && 5600308575be66ec3870d27b19df044fda18448feb41Chris Lattner "Must custom expand ReadCycleCounter"); 56018137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = TLI.LowerOperation(Op, DAG); 56028137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner assert(Lo.Val && "Node must be custom expanded!"); 56038137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = Lo.getValue(1); 5604308575be66ec3870d27b19df044fda18448feb41Chris Lattner AddLegalizedOperand(SDOperand(Node, 1), // Remember we legalized the chain. 56058137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner LegalizeOp(Lo.getValue(2))); 5606f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth break; 5607f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 56084e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner // These operators cannot be expanded directly, emit them as calls to 56094e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner // library functions. 561056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FP_TO_SINT: { 561180a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner if (TLI.getOperationAction(ISD::FP_TO_SINT, VT) == TargetLowering::Custom) { 5612f20d183c2268553c738fefb014959ea924dd0555Chris Lattner SDOperand Op; 5613f20d183c2268553c738fefb014959ea924dd0555Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 5614f20d183c2268553c738fefb014959ea924dd0555Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 56158137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Legal: Op = LegalizeOp(Node->getOperand(0)); break; 56168137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Promote: Op = PromoteOp (Node->getOperand(0)); break; 5617f20d183c2268553c738fefb014959ea924dd0555Chris Lattner } 5618d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 5619f20d183c2268553c738fefb014959ea924dd0555Chris Lattner Op = TLI.LowerOperation(DAG.getNode(ISD::FP_TO_SINT, VT, Op), DAG); 5620f20d183c2268553c738fefb014959ea924dd0555Chris Lattner 562180a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner // Now that the custom expander is done, expand the result, which is still 562280a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner // VT. 562307dffd6af673c73352150583150b242a93694f00Chris Lattner if (Op.Val) { 562407dffd6af673c73352150583150b242a93694f00Chris Lattner ExpandOp(Op, Lo, Hi); 562507dffd6af673c73352150583150b242a93694f00Chris Lattner break; 562607dffd6af673c73352150583150b242a93694f00Chris Lattner } 562780a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner } 5628d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 5629161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 56304e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner if (Node->getOperand(0).getValueType() == MVT::f32) 563156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::FPTOSINT_F32_I64; 563273328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen else if (Node->getOperand(0).getValueType() == MVT::f64) 563356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::FPTOSINT_F64_I64; 5634161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen else if (Node->getOperand(0).getValueType() == MVT::f80) 5635161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen LC = RTLIB::FPTOSINT_F80_I64; 5636161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen else if (Node->getOperand(0).getValueType() == MVT::ppcf128) 5637161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen LC = RTLIB::FPTOSINT_PPCF128_I64; 563856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(LC), Node, 563956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Hi); 56404e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner break; 564156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng } 5642d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 564356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FP_TO_UINT: { 564480a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner if (TLI.getOperationAction(ISD::FP_TO_UINT, VT) == TargetLowering::Custom) { 56458137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op; 56468137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 56478137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 56488137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Legal: Op = LegalizeOp(Node->getOperand(0)); break; 56498137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Promote: Op = PromoteOp (Node->getOperand(0)); break; 56508137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 56518137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 56528137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Op = TLI.LowerOperation(DAG.getNode(ISD::FP_TO_UINT, VT, Op), DAG); 56538137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 56548137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Now that the custom expander is done, expand the result. 565507dffd6af673c73352150583150b242a93694f00Chris Lattner if (Op.Val) { 565607dffd6af673c73352150583150b242a93694f00Chris Lattner ExpandOp(Op, Lo, Hi); 565707dffd6af673c73352150583150b242a93694f00Chris Lattner break; 565807dffd6af673c73352150583150b242a93694f00Chris Lattner } 565980a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner } 5660d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 5661daccea18ca8357b4193ac3ba42a168e650b807e0Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 56624e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner if (Node->getOperand(0).getValueType() == MVT::f32) 566356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::FPTOUINT_F32_I64; 566472292f07122de9c8bd41b85e94cb2d3235eca0c9Dale Johannesen else if (Node->getOperand(0).getValueType() == MVT::f64) 566556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::FPTOUINT_F64_I64; 5666161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen else if (Node->getOperand(0).getValueType() == MVT::f80) 5667161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen LC = RTLIB::FPTOUINT_F80_I64; 5668161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen else if (Node->getOperand(0).getValueType() == MVT::ppcf128) 5669161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen LC = RTLIB::FPTOUINT_PPCF128_I64; 567056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(LC), Node, 567156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Hi); 56724e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner break; 567356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng } 56744e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner 567505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SHL: { 567650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 5677348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 567850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SHL, VT) == TargetLowering::Custom) { 56798137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SHL, VT, Node->getOperand(0), ShiftAmt); 568050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 568150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 568250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 568350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 568450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 568550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 568650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 568750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 568850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 568979980b07dab50da1a8f572f9504674bfa853d484Chris Lattner // If ADDC/ADDE are supported and if the shift amount is a constant 1, emit 569079980b07dab50da1a8f572f9504674bfa853d484Chris Lattner // this X << 1 as X+X. 569179980b07dab50da1a8f572f9504674bfa853d484Chris Lattner if (ConstantSDNode *ShAmt = dyn_cast<ConstantSDNode>(ShiftAmt)) { 569279980b07dab50da1a8f572f9504674bfa853d484Chris Lattner if (ShAmt->getValue() == 1 && TLI.isOperationLegal(ISD::ADDC, NVT) && 569379980b07dab50da1a8f572f9504674bfa853d484Chris Lattner TLI.isOperationLegal(ISD::ADDE, NVT)) { 569479980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDOperand LoOps[2], HiOps[3]; 569579980b07dab50da1a8f572f9504674bfa853d484Chris Lattner ExpandOp(Node->getOperand(0), LoOps[0], HiOps[0]); 569679980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDVTList VTList = DAG.getVTList(LoOps[0].getValueType(), MVT::Flag); 569779980b07dab50da1a8f572f9504674bfa853d484Chris Lattner LoOps[1] = LoOps[0]; 569879980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Lo = DAG.getNode(ISD::ADDC, VTList, LoOps, 2); 569979980b07dab50da1a8f572f9504674bfa853d484Chris Lattner 570079980b07dab50da1a8f572f9504674bfa853d484Chris Lattner HiOps[1] = HiOps[0]; 570179980b07dab50da1a8f572f9504674bfa853d484Chris Lattner HiOps[2] = Lo.getValue(1); 570279980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Hi = DAG.getNode(ISD::ADDE, VTList, HiOps, 3); 570379980b07dab50da1a8f572f9504674bfa853d484Chris Lattner break; 570479980b07dab50da1a8f572f9504674bfa853d484Chris Lattner } 570579980b07dab50da1a8f572f9504674bfa853d484Chris Lattner } 570679980b07dab50da1a8f572f9504674bfa853d484Chris Lattner 5707e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 5708348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SHL, Node->getOperand(0), ShiftAmt, Lo, Hi)) 5709e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 57104759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 57114759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SHL_PARTS, use it. 571205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 571305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SHL_PARTS, NVT); 571405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 571505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 5716348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SHL_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 57174759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 57184759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 57194759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 5720e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 572156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SHL_I64), Node, 572256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*left shift=unsigned*/, Hi); 5723e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 572405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 5725e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 572605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SRA: { 572750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 5728348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 572950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SRA, VT) == TargetLowering::Custom) { 57308137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SRA, VT, Node->getOperand(0), ShiftAmt); 573150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 573250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 573350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 573450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 573550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 573650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 573750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 573850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 573950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 5740e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 5741348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SRA, Node->getOperand(0), ShiftAmt, Lo, Hi)) 5742e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 57434759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 57444759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SRA_PARTS, use it. 574505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 574605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SRA_PARTS, NVT); 574705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 574805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 5749348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SRA_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 57504759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 57514759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 57524759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 5753e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 575456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SRA_I64), Node, 575556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng true/*ashr is signed*/, Hi); 5756e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 575705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 575805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 575905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SRL: { 576050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 5761348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 576250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SRL, VT) == TargetLowering::Custom) { 57638137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SRL, VT, Node->getOperand(0), ShiftAmt); 576450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 576550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 576650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 576750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 576850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 576950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 577050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 577150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 577250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 5773e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 5774348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SRL, Node->getOperand(0), ShiftAmt, Lo, Hi)) 5775e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 57764759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 57774759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SRL_PARTS, use it. 577805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 577905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SRL_PARTS, NVT); 578005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 578105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 5782348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SRL_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 57834759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 57844759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 57854759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 5786e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 578756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SRL_I64), Node, 578856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*lshr is unsigned*/, Hi); 5789e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 579005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 5791e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 5792edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman case ISD::ADD: 57938137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::SUB: { 57948137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // If the target wants to custom expand this, let them. 57958137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner if (TLI.getOperationAction(Node->getOpcode(), VT) == 57968137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner TargetLowering::Custom) { 57978137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Op = TLI.LowerOperation(Op, DAG); 57988137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner if (Op.Val) { 57998137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Op, Lo, Hi); 58008137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner break; 58018137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 58028137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 58038137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 58048137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Expand the subcomponents. 58058137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand LHSL, LHSH, RHSL, RHSH; 58068137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Node->getOperand(0), LHSL, LHSH); 58078137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Node->getOperand(1), RHSL, RHSH); 580879980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); 580979980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDOperand LoOps[2], HiOps[3]; 5810bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner LoOps[0] = LHSL; 5811bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner LoOps[1] = RHSL; 5812bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[0] = LHSH; 5813bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[1] = RHSH; 5814551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman if (Node->getOpcode() == ISD::ADD) { 581579980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Lo = DAG.getNode(ISD::ADDC, VTList, LoOps, 2); 5816bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[2] = Lo.getValue(1); 581779980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Hi = DAG.getNode(ISD::ADDE, VTList, HiOps, 3); 5818551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman } else { 581979980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Lo = DAG.getNode(ISD::SUBC, VTList, LoOps, 2); 5820bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[2] = Lo.getValue(1); 582179980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Hi = DAG.getNode(ISD::SUBE, VTList, HiOps, 3); 5822551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman } 582384f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner break; 58248137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 5825b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 5826b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::ADDC: 5827b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::SUBC: { 5828b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Expand the subcomponents. 5829b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand LHSL, LHSH, RHSL, RHSH; 5830b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(0), LHSL, LHSH); 5831b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(1), RHSL, RHSH); 5832b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); 5833b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand LoOps[2] = { LHSL, RHSL }; 5834b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand HiOps[3] = { LHSH, RHSH }; 5835b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 5836b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner if (Node->getOpcode() == ISD::ADDC) { 5837b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Lo = DAG.getNode(ISD::ADDC, VTList, LoOps, 2); 5838b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner HiOps[2] = Lo.getValue(1); 5839b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Hi = DAG.getNode(ISD::ADDE, VTList, HiOps, 3); 5840b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } else { 5841b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Lo = DAG.getNode(ISD::SUBC, VTList, LoOps, 2); 5842b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner HiOps[2] = Lo.getValue(1); 5843b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Hi = DAG.getNode(ISD::SUBE, VTList, HiOps, 3); 5844b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } 5845b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Remember that we legalized the flag. 5846b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Hi.getValue(1))); 5847b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner break; 5848b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } 5849b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::ADDE: 5850b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::SUBE: { 5851b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Expand the subcomponents. 5852b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand LHSL, LHSH, RHSL, RHSH; 5853b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(0), LHSL, LHSH); 5854b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(1), RHSL, RHSH); 5855b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); 5856b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand LoOps[3] = { LHSL, RHSL, Node->getOperand(2) }; 5857b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand HiOps[3] = { LHSH, RHSH }; 5858b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 5859b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Lo = DAG.getNode(Node->getOpcode(), VTList, LoOps, 3); 5860b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner HiOps[2] = Lo.getValue(1); 5861b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Hi = DAG.getNode(Node->getOpcode(), VTList, HiOps, 3); 5862b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 5863b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Remember that we legalized the flag. 5864b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Hi.getValue(1))); 5865b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner break; 5866b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } 5867c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MUL: { 58687d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner // If the target wants to custom expand this, let them. 58697d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner if (TLI.getOperationAction(ISD::MUL, VT) == TargetLowering::Custom) { 58708829dc88a8637fe588e299d96de394afc3ecc528Chris Lattner SDOperand New = TLI.LowerOperation(Op, DAG); 58718829dc88a8637fe588e299d96de394afc3ecc528Chris Lattner if (New.Val) { 58728829dc88a8637fe588e299d96de394afc3ecc528Chris Lattner ExpandOp(New, Lo, Hi); 58737d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner break; 58747d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner } 58757d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner } 58767d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner 58773f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng bool HasMULHS = TLI.isOperationLegal(ISD::MULHS, NVT); 58783f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng bool HasMULHU = TLI.isOperationLegal(ISD::MULHU, NVT); 5879525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasSMUL_LOHI = TLI.isOperationLegal(ISD::SMUL_LOHI, NVT); 5880525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasUMUL_LOHI = TLI.isOperationLegal(ISD::UMUL_LOHI, NVT); 5881525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasMULHU || HasMULHS || HasUMUL_LOHI || HasSMUL_LOHI) { 5882c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman SDOperand LL, LH, RL, RH; 5883c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman ExpandOp(Node->getOperand(0), LL, LH); 5884c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman ExpandOp(Node->getOperand(1), RL, RH); 5885525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman unsigned BitSize = MVT::getSizeInBits(RH.getValueType()); 5886525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman unsigned LHSSB = DAG.ComputeNumSignBits(Op.getOperand(0)); 5887525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman unsigned RHSSB = DAG.ComputeNumSignBits(Op.getOperand(1)); 5888525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // FIXME: generalize this to handle other bit sizes 5889525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (LHSSB == 32 && RHSSB == 32 && 5890525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman DAG.MaskedValueIsZero(Op.getOperand(0), 0xFFFFFFFF00000000ULL) && 5891525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman DAG.MaskedValueIsZero(Op.getOperand(1), 0xFFFFFFFF00000000ULL)) { 5892525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // The inputs are both zero-extended. 5893525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasUMUL_LOHI) { 5894525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // We can emit a umul_lohi. 5895525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Lo = DAG.getNode(ISD::UMUL_LOHI, DAG.getVTList(NVT, NVT), LL, RL); 5896525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Hi = SDOperand(Lo.Val, 1); 5897525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 5898525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 5899525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasMULHU) { 5900525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // We can emit a mulhu+mul. 5901525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Lo = DAG.getNode(ISD::MUL, NVT, LL, RL); 5902525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Hi = DAG.getNode(ISD::MULHU, NVT, LL, RL); 5903525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 5904525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 5905525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 5906525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (LHSSB > BitSize && RHSSB > BitSize) { 5907525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // The input values are both sign-extended. 5908525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasSMUL_LOHI) { 5909525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // We can emit a smul_lohi. 5910525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Lo = DAG.getNode(ISD::SMUL_LOHI, DAG.getVTList(NVT, NVT), LL, RL); 5911525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Hi = SDOperand(Lo.Val, 1); 5912525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 5913525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 5914525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasMULHS) { 5915525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // We can emit a mulhs+mul. 5916525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Lo = DAG.getNode(ISD::MUL, NVT, LL, RL); 5917525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Hi = DAG.getNode(ISD::MULHS, NVT, LL, RL); 5918525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 5919525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 5920525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 5921525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasUMUL_LOHI) { 5922525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // Lo,Hi = umul LHS, RHS. 5923525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman SDOperand UMulLOHI = DAG.getNode(ISD::UMUL_LOHI, 5924525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman DAG.getVTList(NVT, NVT), LL, RL); 5925525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Lo = UMulLOHI; 5926525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Hi = UMulLOHI.getValue(1); 592756eb86806d5d178d42108f17d11098b3e640b996Nate Begeman RH = DAG.getNode(ISD::MUL, NVT, LL, RH); 592856eb86806d5d178d42108f17d11098b3e640b996Nate Begeman LH = DAG.getNode(ISD::MUL, NVT, LH, RL); 592956eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::ADD, NVT, Hi, RH); 593056eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::ADD, NVT, Hi, LH); 5931a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner break; 593256eb86806d5d178d42108f17d11098b3e640b996Nate Begeman } 5933c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman } 59343f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng 5935525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // If nothing else, we can make a libcall. 593656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::MUL_I64), Node, 593756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Hi); 5938c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman break; 5939c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman } 594056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::SDIV: 594156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SDIV_I64), Node, true, Hi); 594256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 594356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::UDIV: 594456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::UDIV_I64), Node, true, Hi); 594556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 594656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::SREM: 594756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SREM_I64), Node, true, Hi); 594856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 594956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::UREM: 595056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::UREM_I64), Node, true, Hi); 595156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 59525c9ce1893a4bee65bc05c7c48f11734f55405692Evan Cheng 59531a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FADD: 5954161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen Lo = ExpandLibCall(TLI.getLibcallName(VT == MVT::f32 ? RTLIB::ADD_F32 : 5955161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen VT == MVT::f64 ? RTLIB::ADD_F64 : 5956161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen VT == MVT::ppcf128 ? 5957161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen RTLIB::ADD_PPCF128 : 5958161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen RTLIB::UNKNOWN_LIBCALL), 595956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 59601a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 59611a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FSUB: 5962161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen Lo = ExpandLibCall(TLI.getLibcallName(VT == MVT::f32 ? RTLIB::SUB_F32 : 5963161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen VT == MVT::f64 ? RTLIB::SUB_F64 : 5964161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen VT == MVT::ppcf128 ? 5965161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen RTLIB::SUB_PPCF128 : 5966161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen RTLIB::UNKNOWN_LIBCALL), 596756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 59681a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 59691a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FMUL: 5970161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen Lo = ExpandLibCall(TLI.getLibcallName(VT == MVT::f32 ? RTLIB::MUL_F32 : 5971161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen VT == MVT::f64 ? RTLIB::MUL_F64 : 5972161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen VT == MVT::ppcf128 ? 5973161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen RTLIB::MUL_PPCF128 : 5974161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen RTLIB::UNKNOWN_LIBCALL), 597556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 59761a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 59771a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FDIV: 5978161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen Lo = ExpandLibCall(TLI.getLibcallName(VT == MVT::f32 ? RTLIB::DIV_F32 : 5979161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen VT == MVT::f64 ? RTLIB::DIV_F64 : 5980161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen VT == MVT::ppcf128 ? 5981161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen RTLIB::DIV_PPCF128 : 5982161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen RTLIB::UNKNOWN_LIBCALL), 598356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 59841a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 59851a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FP_EXTEND: 5986ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen if (VT == MVT::ppcf128) { 5987ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen assert(Node->getOperand(0).getValueType()==MVT::f32 || 5988ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Node->getOperand(0).getValueType()==MVT::f64); 5989ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen const uint64_t zero = 0; 5990ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen if (Node->getOperand(0).getValueType()==MVT::f32) 5991ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi = DAG.getNode(ISD::FP_EXTEND, MVT::f64, Node->getOperand(0)); 5992ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen else 5993ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi = Node->getOperand(0); 5994ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Lo = DAG.getConstantFP(APFloat(APInt(64, 1, &zero)), MVT::f64); 5995ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen break; 5996ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen } 599756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::FPEXT_F32_F64), Node, true,Hi); 59981a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 59991a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FP_ROUND: 600056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::FPROUND_F64_F32),Node,true,Hi); 60011a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 6002c90f08936d717ac6aa767c28cee7af4366eb6921Lauro Ramos Venancio case ISD::FPOWI: 6003317096ab3710fda0960be58804e9f80c800340f6Dale Johannesen Lo = ExpandLibCall(TLI.getLibcallName((VT == MVT::f32) ? RTLIB::POWI_F32 : 6004317096ab3710fda0960be58804e9f80c800340f6Dale Johannesen (VT == MVT::f64) ? RTLIB::POWI_F64 : 6005161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen (VT == MVT::f80) ? RTLIB::POWI_F80 : 6006161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen (VT == MVT::ppcf128) ? 6007161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen RTLIB::POWI_PPCF128 : 6008161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen RTLIB::UNKNOWN_LIBCALL), 6009c90f08936d717ac6aa767c28cee7af4366eb6921Lauro Ramos Venancio Node, false, Hi); 6010c90f08936d717ac6aa767c28cee7af4366eb6921Lauro Ramos Venancio break; 601198ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng case ISD::FSQRT: 601298ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng case ISD::FSIN: 601398ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng case ISD::FCOS: { 601456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 601598ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng switch(Node->getOpcode()) { 601656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSQRT: 6017317096ab3710fda0960be58804e9f80c800340f6Dale Johannesen LC = (VT == MVT::f32) ? RTLIB::SQRT_F32 : 6018161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen (VT == MVT::f64) ? RTLIB::SQRT_F64 : 6019161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen (VT == MVT::f80) ? RTLIB::SQRT_F80 : 6020161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen (VT == MVT::ppcf128) ? RTLIB::SQRT_PPCF128 : 6021161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen RTLIB::UNKNOWN_LIBCALL; 602256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 602356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSIN: 602456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::f32) ? RTLIB::SIN_F32 : RTLIB::SIN_F64; 602556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 602656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FCOS: 602756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::f32) ? RTLIB::COS_F32 : RTLIB::COS_F64; 602856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 602998ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng default: assert(0 && "Unreachable!"); 603098ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng } 603156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(LC), Node, false, Hi); 603298ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng break; 603398ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng } 6034966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng case ISD::FABS: { 6035f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen if (VT == MVT::ppcf128) { 6036f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen SDOperand Tmp; 6037f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen ExpandOp(Node->getOperand(0), Lo, Tmp); 6038f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen Hi = DAG.getNode(ISD::FABS, NVT, Tmp); 6039f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen // lo = hi==fabs(hi) ? lo : -lo; 6040f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen Lo = DAG.getNode(ISD::SELECT_CC, NVT, Hi, Tmp, 6041f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen Lo, DAG.getNode(ISD::FNEG, NVT, Lo), 6042f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen DAG.getCondCode(ISD::SETEQ)); 6043f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen break; 6044f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen } 6045966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng SDOperand Mask = (VT == MVT::f64) 6046966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ? DAG.getConstantFP(BitsToDouble(~(1ULL << 63)), VT) 6047966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng : DAG.getConstantFP(BitsToFloat(~(1U << 31)), VT); 6048966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Mask = DAG.getNode(ISD::BIT_CONVERT, NVT, Mask); 6049966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 6050966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::AND, NVT, Lo, Mask); 6051966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng if (getTypeAction(NVT) == Expand) 6052966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ExpandOp(Lo, Lo, Hi); 6053966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng break; 6054966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng } 6055966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng case ISD::FNEG: { 6056f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen if (VT == MVT::ppcf128) { 6057f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen ExpandOp(Node->getOperand(0), Lo, Hi); 6058f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen Lo = DAG.getNode(ISD::FNEG, MVT::f64, Lo); 6059f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen Hi = DAG.getNode(ISD::FNEG, MVT::f64, Hi); 6060f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen break; 6061f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen } 6062966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng SDOperand Mask = (VT == MVT::f64) 6063966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ? DAG.getConstantFP(BitsToDouble(1ULL << 63), VT) 6064966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng : DAG.getConstantFP(BitsToFloat(1U << 31), VT); 6065966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Mask = DAG.getNode(ISD::BIT_CONVERT, NVT, Mask); 6066966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 6067966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::XOR, NVT, Lo, Mask); 6068966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng if (getTypeAction(NVT) == Expand) 6069966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ExpandOp(Lo, Lo, Hi); 6070966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng break; 6071966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng } 6072912095becac923ff614d7b07728eb345ada67765Evan Cheng case ISD::FCOPYSIGN: { 6073912095becac923ff614d7b07728eb345ada67765Evan Cheng Lo = ExpandFCOPYSIGNToBitwiseOps(Node, NVT, DAG, TLI); 6074912095becac923ff614d7b07728eb345ada67765Evan Cheng if (getTypeAction(NVT) == Expand) 6075912095becac923ff614d7b07728eb345ada67765Evan Cheng ExpandOp(Lo, Lo, Hi); 6076912095becac923ff614d7b07728eb345ada67765Evan Cheng break; 6077912095becac923ff614d7b07728eb345ada67765Evan Cheng } 60787df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng case ISD::SINT_TO_FP: 60797df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng case ISD::UINT_TO_FP: { 60807df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng bool isSigned = Node->getOpcode() == ISD::SINT_TO_FP; 60817df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng MVT::ValueType SrcVT = Node->getOperand(0).getValueType(); 60826e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen if (VT == MVT::ppcf128 && SrcVT != MVT::i64) { 6083ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen static uint64_t zero = 0; 6084ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen if (isSigned) { 6085ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi = LegalizeOp(DAG.getNode(ISD::SINT_TO_FP, MVT::f64, 6086ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Node->getOperand(0))); 6087ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Lo = DAG.getConstantFP(APFloat(APInt(64, 1, &zero)), MVT::f64); 6088ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen } else { 6089ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen static uint64_t TwoE32[] = { 0x41f0000000000000LL, 0 }; 6090ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi = LegalizeOp(DAG.getNode(ISD::SINT_TO_FP, MVT::f64, 6091ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Node->getOperand(0))); 6092ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Lo = DAG.getConstantFP(APFloat(APInt(64, 1, &zero)), MVT::f64); 6093ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi = DAG.getNode(ISD::BUILD_PAIR, VT, Lo, Hi); 60946e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen // X>=0 ? {(f64)x, 0} : {(f64)x, 0} + 2^32 6095ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen ExpandOp(DAG.getNode(ISD::SELECT_CC, MVT::ppcf128, Node->getOperand(0), 6096ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen DAG.getConstant(0, MVT::i32), 6097ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen DAG.getNode(ISD::FADD, MVT::ppcf128, Hi, 6098ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen DAG.getConstantFP( 6099ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen APFloat(APInt(128, 2, TwoE32)), 6100ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen MVT::ppcf128)), 6101ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi, 6102ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen DAG.getCondCode(ISD::SETLT)), 6103ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Lo, Hi); 6104ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen } 6105ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen break; 6106ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen } 61076e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen if (VT == MVT::ppcf128 && SrcVT == MVT::i64 && !isSigned) { 61086e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen // si64->ppcf128 done by libcall, below 61096e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen static uint64_t TwoE64[] = { 0x43f0000000000000LL, 0 }; 61106e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen ExpandOp(DAG.getNode(ISD::SINT_TO_FP, MVT::ppcf128, Node->getOperand(0)), 61116e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen Lo, Hi); 61126e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen Hi = DAG.getNode(ISD::BUILD_PAIR, VT, Lo, Hi); 61136e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen // x>=0 ? (ppcf128)(i64)x : (ppcf128)(i64)x + 2^64 61146e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen ExpandOp(DAG.getNode(ISD::SELECT_CC, MVT::ppcf128, Node->getOperand(0), 61156e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen DAG.getConstant(0, MVT::i64), 61166e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen DAG.getNode(ISD::FADD, MVT::ppcf128, Hi, 61176e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen DAG.getConstantFP( 61186e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen APFloat(APInt(128, 2, TwoE64)), 61196e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen MVT::ppcf128)), 61206e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen Hi, 61216e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen DAG.getCondCode(ISD::SETLT)), 61226e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen Lo, Hi); 61236e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen break; 61246e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen } 612564f638df568f2849b485cc50836efc734e367fc7Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 61267df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng if (Node->getOperand(0).getValueType() == MVT::i64) { 61277df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng if (VT == MVT::f32) 612856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = isSigned ? RTLIB::SINTTOFP_I64_F32 : RTLIB::UINTTOFP_I64_F32; 612973328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen else if (VT == MVT::f64) 613056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = isSigned ? RTLIB::SINTTOFP_I64_F64 : RTLIB::UINTTOFP_I64_F64; 6131161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen else if (VT == MVT::f80) { 6132161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen assert(isSigned); 6133161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen LC = RTLIB::SINTTOFP_I64_F80; 6134161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen } 6135161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen else if (VT == MVT::ppcf128) { 613673328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen assert(isSigned); 6137161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen LC = RTLIB::SINTTOFP_I64_PPCF128; 613873328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen } 61397df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng } else { 61407df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng if (VT == MVT::f32) 614156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = isSigned ? RTLIB::SINTTOFP_I32_F32 : RTLIB::UINTTOFP_I32_F32; 61427df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng else 614356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = isSigned ? RTLIB::SINTTOFP_I32_F64 : RTLIB::UINTTOFP_I32_F64; 61447df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng } 61457df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng 61467df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng // Promote the operand if needed. 61477df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng if (getTypeAction(SrcVT) == Promote) { 61487df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng SDOperand Tmp = PromoteOp(Node->getOperand(0)); 61497df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng Tmp = isSigned 61507df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng ? DAG.getNode(ISD::SIGN_EXTEND_INREG, Tmp.getValueType(), Tmp, 61517df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng DAG.getValueType(SrcVT)) 61527df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng : DAG.getZeroExtendInReg(Tmp, SrcVT); 61537df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng Node = DAG.UpdateNodeOperands(Op, Tmp).Val; 61547df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng } 61554c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng 61564c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng const char *LibCall = TLI.getLibcallName(LC); 61574c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng if (LibCall) 61584c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng Lo = ExpandLibCall(TLI.getLibcallName(LC), Node, isSigned, Hi); 61594c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng else { 61604c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng Lo = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, VT, 61614c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng Node->getOperand(0)); 61624c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng if (getTypeAction(Lo.getValueType()) == Expand) 61634c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng ExpandOp(Lo, Lo, Hi); 61644c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng } 61657df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng break; 61667df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng } 616798ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng } 61683e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 616983397363348662e9352455ea1e6e88e7026300a4Chris Lattner // Make sure the resultant values have been legalized themselves, unless this 617083397363348662e9352455ea1e6e88e7026300a4Chris Lattner // is a type that requires multi-step expansion. 617183397363348662e9352455ea1e6e88e7026300a4Chris Lattner if (getTypeAction(NVT) != Expand && NVT != MVT::isVoid) { 617283397363348662e9352455ea1e6e88e7026300a4Chris Lattner Lo = LegalizeOp(Lo); 617313acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (Hi.Val) 617413acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng // Don't legalize the high part if it is expanded to a single node. 617513acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Hi = LegalizeOp(Hi); 617683397363348662e9352455ea1e6e88e7026300a4Chris Lattner } 617705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 617805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng // Remember in a map if the values will be reused later. 617940030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner bool isNew = ExpandedNodes.insert(std::make_pair(Op, std::make_pair(Lo, Hi))); 618005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng assert(isNew && "Value already expanded?!?"); 61813e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 61823e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 61837f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// SplitVectorOp - Given an operand of vector type, break it down into 61847f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// two smaller values, still of vector type. 6185c7029805ef35ce9805931067b841e6af11db382eChris Lattnervoid SelectionDAGLegalize::SplitVectorOp(SDOperand Op, SDOperand &Lo, 6186c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand &Hi) { 61877f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(MVT::isVector(Op.getValueType()) && "Cannot split non-vector type!"); 6188c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDNode *Node = Op.Val; 6189e40c7b097354974ebd42c7e5d54440b07b57cc33Dan Gohman unsigned NumElements = MVT::getVectorNumElements(Op.getValueType()); 6190c7029805ef35ce9805931067b841e6af11db382eChris Lattner assert(NumElements > 1 && "Cannot split a single element vector!"); 6191c7029805ef35ce9805931067b841e6af11db382eChris Lattner unsigned NewNumElts = NumElements/2; 6192e40c7b097354974ebd42c7e5d54440b07b57cc33Dan Gohman MVT::ValueType NewEltVT = MVT::getVectorElementType(Op.getValueType()); 61937f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::ValueType NewVT = MVT::getVectorType(NewEltVT, NewNumElts); 6194c7029805ef35ce9805931067b841e6af11db382eChris Lattner 6195c7029805ef35ce9805931067b841e6af11db382eChris Lattner // See if we already split it. 6196c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::map<SDOperand, std::pair<SDOperand, SDOperand> >::iterator I 6197c7029805ef35ce9805931067b841e6af11db382eChris Lattner = SplitNodes.find(Op); 6198c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (I != SplitNodes.end()) { 6199c7029805ef35ce9805931067b841e6af11db382eChris Lattner Lo = I->second.first; 6200c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi = I->second.second; 6201c7029805ef35ce9805931067b841e6af11db382eChris Lattner return; 6202c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 6203c7029805ef35ce9805931067b841e6af11db382eChris Lattner 6204c7029805ef35ce9805931067b841e6af11db382eChris Lattner switch (Node->getOpcode()) { 6205e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey default: 6206e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 620739833585556a69de12053ca1e104fe7edfd86cbdDan Gohman Node->dump(&DAG); 6208e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 6209e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey assert(0 && "Unhandled operation in SplitVectorOp!"); 62107f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BUILD_PAIR: 62117f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Lo = Node->getOperand(0); 62127f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Hi = Node->getOperand(1); 62137f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 62149fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman case ISD::INSERT_VECTOR_ELT: { 62159fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman SplitVectorOp(Node->getOperand(0), Lo, Hi); 62169fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman unsigned Index = cast<ConstantSDNode>(Node->getOperand(2))->getValue(); 62179fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman SDOperand ScalarOp = Node->getOperand(1); 62189fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman if (Index < NewNumElts) 62199fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman Lo = DAG.getNode(ISD::INSERT_VECTOR_ELT, NewVT, Lo, ScalarOp, 62209fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman DAG.getConstant(Index, TLI.getPointerTy())); 62219fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman else 62229fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman Hi = DAG.getNode(ISD::INSERT_VECTOR_ELT, NewVT, Hi, ScalarOp, 62239fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman DAG.getConstant(Index - NewNumElts, TLI.getPointerTy())); 62249fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman break; 62259fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman } 62267f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BUILD_VECTOR: { 6227bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> LoOps(Node->op_begin(), 6228bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Node->op_begin()+NewNumElts); 62297f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Lo = DAG.getNode(ISD::BUILD_VECTOR, NewVT, &LoOps[0], LoOps.size()); 6230c7029805ef35ce9805931067b841e6af11db382eChris Lattner 6231bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> HiOps(Node->op_begin()+NewNumElts, 62327f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Node->op_end()); 62337f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Hi = DAG.getNode(ISD::BUILD_VECTOR, NewVT, &HiOps[0], HiOps.size()); 6234c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 6235c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 62367f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::CONCAT_VECTORS: { 62377f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned NewNumSubvectors = Node->getNumOperands() / 2; 62387f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (NewNumSubvectors == 1) { 62397f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Lo = Node->getOperand(0); 62407f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Hi = Node->getOperand(1); 62417f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else { 62427f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SmallVector<SDOperand, 8> LoOps(Node->op_begin(), 62437f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Node->op_begin()+NewNumSubvectors); 62447f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Lo = DAG.getNode(ISD::CONCAT_VECTORS, NewVT, &LoOps[0], LoOps.size()); 62456595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 62467f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SmallVector<SDOperand, 8> HiOps(Node->op_begin()+NewNumSubvectors, 62477f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Node->op_end()); 62487f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Hi = DAG.getNode(ISD::CONCAT_VECTORS, NewVT, &HiOps[0], HiOps.size()); 62497f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 62506595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 62516595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } 6252c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman case ISD::SELECT: { 6253c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman SDOperand Cond = Node->getOperand(0); 6254c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman 6255c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman SDOperand LL, LH, RL, RH; 6256c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman SplitVectorOp(Node->getOperand(1), LL, LH); 6257c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman SplitVectorOp(Node->getOperand(2), RL, RH); 6258c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman 6259c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman if (MVT::isVector(Cond.getValueType())) { 6260c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman // Handle a vector merge. 6261c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman SDOperand CL, CH; 6262c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman SplitVectorOp(Cond, CL, CH); 6263c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman Lo = DAG.getNode(Node->getOpcode(), NewVT, CL, LL, RL); 6264c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman Hi = DAG.getNode(Node->getOpcode(), NewVT, CH, LH, RH); 6265c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman } else { 6266c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman // Handle a simple select with vector operands. 6267c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman Lo = DAG.getNode(Node->getOpcode(), NewVT, Cond, LL, RL); 6268c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman Hi = DAG.getNode(Node->getOpcode(), NewVT, Cond, LH, RH); 6269c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman } 6270c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman break; 6271c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman } 62727f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::ADD: 62737f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SUB: 62747f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::MUL: 62757f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FADD: 62767f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FSUB: 62777f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FMUL: 62787f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SDIV: 62797f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::UDIV: 62807f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FDIV: 6281826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FPOW: 62827f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::AND: 62837f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::OR: 62847f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::XOR: { 6285c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand LL, LH, RL, RH; 6286c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitVectorOp(Node->getOperand(0), LL, LH); 6287c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitVectorOp(Node->getOperand(1), RL, RH); 6288c7029805ef35ce9805931067b841e6af11db382eChris Lattner 62897f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Lo = DAG.getNode(Node->getOpcode(), NewVT, LL, RL); 62907f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Hi = DAG.getNode(Node->getOpcode(), NewVT, LH, RH); 6291c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 6292c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 6293826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FPOWI: { 6294826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SDOperand L, H; 6295826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SplitVectorOp(Node->getOperand(0), L, H); 6296826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 6297826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Lo = DAG.getNode(Node->getOpcode(), NewVT, L, Node->getOperand(1)); 6298826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Hi = DAG.getNode(Node->getOpcode(), NewVT, H, Node->getOperand(1)); 6299826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 6300826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 6301826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::CTTZ: 6302826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::CTLZ: 6303826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::CTPOP: 6304826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FNEG: 6305826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FABS: 6306826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FSQRT: 6307826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FSIN: 6308826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FCOS: { 6309826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SDOperand L, H; 6310826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SplitVectorOp(Node->getOperand(0), L, H); 6311826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 6312826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Lo = DAG.getNode(Node->getOpcode(), NewVT, L); 6313826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Hi = DAG.getNode(Node->getOpcode(), NewVT, H); 6314826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 6315826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 63167f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::LOAD: { 63177f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman LoadSDNode *LD = cast<LoadSDNode>(Node); 63187f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ch = LD->getChain(); 63197f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ptr = LD->getBasePtr(); 63207f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman const Value *SV = LD->getSrcValue(); 63217f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman int SVOffset = LD->getSrcValueOffset(); 63227f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned Alignment = LD->getAlignment(); 63237f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman bool isVolatile = LD->isVolatile(); 63247f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 63257f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Lo = DAG.getLoad(NewVT, Ch, Ptr, SV, SVOffset, isVolatile, Alignment); 63267f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned IncrementSize = NewNumElts * MVT::getSizeInBits(NewEltVT)/8; 6327c7029805ef35ce9805931067b841e6af11db382eChris Lattner Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 6328c7029805ef35ce9805931067b841e6af11db382eChris Lattner getIntPtrConstant(IncrementSize)); 63297f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SVOffset += IncrementSize; 63307f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (Alignment > IncrementSize) 63317f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Alignment = IncrementSize; 63327f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Hi = DAG.getLoad(NewVT, Ch, Ptr, SV, SVOffset, isVolatile, Alignment); 6333c7029805ef35ce9805931067b841e6af11db382eChris Lattner 6334c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Build a factor node to remember that this load is independent of the 6335c7029805ef35ce9805931067b841e6af11db382eChris Lattner // other one. 6336c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand TF = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 6337c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi.getValue(1)); 6338c7029805ef35ce9805931067b841e6af11db382eChris Lattner 6339c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember that we legalized the chain. 6340c7029805ef35ce9805931067b841e6af11db382eChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(TF)); 6341c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 6342c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 63437f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BIT_CONVERT: { 63447692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // We know the result is a vector. The input may be either a vector or a 63457692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // scalar value. 634610a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman SDOperand InOp = Node->getOperand(0); 634710a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman if (!MVT::isVector(InOp.getValueType()) || 634810a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman MVT::getVectorNumElements(InOp.getValueType()) == 1) { 634910a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman // The input is a scalar or single-element vector. 635010a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman // Lower to a store/load so that it can be split. 635110a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman // FIXME: this could be improved probably. 635285dd3be7354f848231362bd70f6517c0e667f95dChris Lattner SDOperand Ptr = DAG.CreateStackTemporary(InOp.getValueType()); 63537692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner 6354786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng SDOperand St = DAG.getStore(DAG.getEntryNode(), 635510a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman InOp, Ptr, NULL, 0); 635610a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman InOp = DAG.getLoad(Op.getValueType(), St, Ptr, NULL, 0); 63577692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner } 635810a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman // Split the vector and convert each of the pieces now. 635910a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman SplitVectorOp(InOp, Lo, Hi); 636010a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman Lo = DAG.getNode(ISD::BIT_CONVERT, NewVT, Lo); 636110a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman Hi = DAG.getNode(ISD::BIT_CONVERT, NewVT, Hi); 636210a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman break; 63637692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner } 6364c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 6365c7029805ef35ce9805931067b841e6af11db382eChris Lattner 6366c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember in a map if the values will be reused later. 636740030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner bool isNew = 6368c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitNodes.insert(std::make_pair(Op, std::make_pair(Lo, Hi))).second; 636910a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman assert(isNew && "Value already split?!?"); 6370c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 6371c7029805ef35ce9805931067b841e6af11db382eChris Lattner 6372c7029805ef35ce9805931067b841e6af11db382eChris Lattner 637389b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman/// ScalarizeVectorOp - Given an operand of single-element vector type 637489b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman/// (e.g. v1f32), convert it into the equivalent operation that returns a 637589b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman/// scalar (e.g. f32) value. 63767f32156bb9c017b71971c52fac892fa7b9b06dd2Dan GohmanSDOperand SelectionDAGLegalize::ScalarizeVectorOp(SDOperand Op) { 63777f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(MVT::isVector(Op.getValueType()) && 63787f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman "Bad ScalarizeVectorOp invocation!"); 6379c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDNode *Node = Op.Val; 63807f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::ValueType NewVT = MVT::getVectorElementType(Op.getValueType()); 63817f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(MVT::getVectorNumElements(Op.getValueType()) == 1); 6382c7029805ef35ce9805931067b841e6af11db382eChris Lattner 63837f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // See if we already scalarized it. 63847f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman std::map<SDOperand, SDOperand>::iterator I = ScalarizedNodes.find(Op); 63857f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (I != ScalarizedNodes.end()) return I->second; 6386c7029805ef35ce9805931067b841e6af11db382eChris Lattner 6387c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand Result; 6388c7029805ef35ce9805931067b841e6af11db382eChris Lattner switch (Node->getOpcode()) { 63892332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: 6390e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 639139833585556a69de12053ca1e104fe7edfd86cbdDan Gohman Node->dump(&DAG); cerr << "\n"; 6392e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 63937f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(0 && "Unknown vector operation in ScalarizeVectorOp!"); 63947f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::ADD: 63957f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FADD: 63967f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SUB: 63977f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FSUB: 63987f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::MUL: 63997f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FMUL: 64007f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SDIV: 64017f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::UDIV: 64027f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FDIV: 64037f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SREM: 64047f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::UREM: 64057f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FREM: 6406826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FPOW: 64077f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::AND: 64087f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::OR: 64097f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::XOR: 64107f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(Node->getOpcode(), 6411c7029805ef35ce9805931067b841e6af11db382eChris Lattner NewVT, 64127f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Node->getOperand(0)), 64137f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Node->getOperand(1))); 6414c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 64157f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FNEG: 64167f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FABS: 64177f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FSQRT: 64187f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FSIN: 64197f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FCOS: 64207f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(Node->getOpcode(), 64217f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman NewVT, 64227f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Node->getOperand(0))); 64237f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 64249e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman case ISD::FPOWI: 64259e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman Result = DAG.getNode(Node->getOpcode(), 64269e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman NewVT, 64279e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman ScalarizeVectorOp(Node->getOperand(0)), 64289e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman Node->getOperand(1)); 64299e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman break; 64307f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::LOAD: { 64317f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman LoadSDNode *LD = cast<LoadSDNode>(Node); 64327f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ch = LegalizeOp(LD->getChain()); // Legalize the chain. 64337f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ptr = LegalizeOp(LD->getBasePtr()); // Legalize the pointer. 6434c7029805ef35ce9805931067b841e6af11db382eChris Lattner 64357f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman const Value *SV = LD->getSrcValue(); 64367f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman int SVOffset = LD->getSrcValueOffset(); 64377f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getLoad(NewVT, Ch, Ptr, SV, SVOffset, 64387f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman LD->isVolatile(), LD->getAlignment()); 64397f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 6440c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember that we legalized the chain. 6441c7029805ef35ce9805931067b841e6af11db382eChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 6442c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 6443c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 64447f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BUILD_VECTOR: 64457f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = Node->getOperand(0); 64467f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 64477f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::INSERT_VECTOR_ELT: 64487f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Returning the inserted scalar element. 64497f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = Node->getOperand(1); 6450c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 64517f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::CONCAT_VECTORS: 64526595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman assert(Node->getOperand(0).getValueType() == NewVT && 64536595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman "Concat of non-legal vectors not yet supported!"); 64546595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Result = Node->getOperand(0); 64556595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 64567f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::VECTOR_SHUFFLE: { 64577f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Figure out if the scalar is the LHS or RHS and return it. 64587f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand EltNum = Node->getOperand(2).getOperand(0); 64597f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (cast<ConstantSDNode>(EltNum)->getValue()) 64607f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = ScalarizeVectorOp(Node->getOperand(1)); 64617f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman else 64627f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = ScalarizeVectorOp(Node->getOperand(0)); 64632332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 64647f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 64657f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::EXTRACT_SUBVECTOR: 64667f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = Node->getOperand(0); 64676595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman assert(Result.getValueType() == NewVT); 64686595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 64697f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BIT_CONVERT: 64707f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(ISD::BIT_CONVERT, NewVT, Op.getOperand(0)); 6471db3c626eb9e85e9192dbee59ff0c4d143c37c94dEvan Cheng break; 64727f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SELECT: 6473b22e35a3c3bec07f5559c1476b3143e0d6d64269Chris Lattner Result = DAG.getNode(ISD::SELECT, NewVT, Op.getOperand(0), 64747f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Op.getOperand(1)), 64757f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Op.getOperand(2))); 6476b22e35a3c3bec07f5559c1476b3143e0d6d64269Chris Lattner break; 6477c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 6478c7029805ef35ce9805931067b841e6af11db382eChris Lattner 6479c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (TLI.isTypeLegal(NewVT)) 6480c7029805ef35ce9805931067b841e6af11db382eChris Lattner Result = LegalizeOp(Result); 64817f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman bool isNew = ScalarizedNodes.insert(std::make_pair(Op, Result)).second; 64827f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(isNew && "Value already scalarized?"); 6483c7029805ef35ce9805931067b841e6af11db382eChris Lattner return Result; 6484c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 6485c7029805ef35ce9805931067b841e6af11db382eChris Lattner 64863e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 64873e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// SelectionDAG::Legalize - This is the entry point for the file. 64883e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// 64899c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattnervoid SelectionDAG::Legalize() { 64905e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner if (ViewLegalizeDAGs) viewGraph(); 64915e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner 64923e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// run - This is the main entry point to this class. 64933e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// 6494456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SelectionDAGLegalize(*this).LegalizeDAG(); 64953e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 64963e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 6497