LegalizeDAG.cpp revision 55b5708b6bbffc79cf133c31faa51d144bfc5d4a
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" 173e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner#include "llvm/Target/TargetLowering.h" 18e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner#include "llvm/Target/TargetData.h" 190f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner#include "llvm/Target/TargetOptions.h" 20adf6a965a321372c640845407195594835921eb4Chris Lattner#include "llvm/CallingConv.h" 213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner#include "llvm/Constants.h" 225e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner#include "llvm/Support/MathExtras.h" 235e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner#include "llvm/Support/CommandLine.h" 24a4f0b3a084d120cfc5b5bb06f64b222f5cb72740Chris Lattner#include "llvm/Support/Compiler.h" 25f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner#include "llvm/ADT/SmallVector.h" 263e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner#include <iostream> 27033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng#include <map> 283e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnerusing namespace llvm; 293e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 305e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner#ifndef NDEBUG 315e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattnerstatic cl::opt<bool> 325e46a19ec848cd4fc9649bd5170c43d9e657668cChris LattnerViewLegalizeDAGs("view-legalize-dags", cl::Hidden, 335e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner cl::desc("Pop up a window to show dags before legalize")); 345e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner#else 355e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattnerstatic const bool ViewLegalizeDAGs = 0; 365e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner#endif 375e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner 383e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner//===----------------------------------------------------------------------===// 393e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// SelectionDAGLegalize - This takes an arbitrary SelectionDAG as input and 403e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// hacks on it until the target machine can handle it. This involves 413e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// eliminating value sizes the machine cannot handle (promoting small sizes to 423e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// large sizes or splitting up large values into small values) as well as 433e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// eliminating operations the machine cannot handle. 443e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// 453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// This code also does a small amount of optimization and recognition of idioms 463e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// as part of its processing. For example, if a target does not support a 473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// 'setcc' instruction efficiently, but does support 'brcc' instruction, this 483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// will attempt merge setcc and brc instructions into brcc's. 493e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// 503e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnernamespace { 51360e8200ec544a3c877ff74b48f445140ac9bbd6Chris Lattnerclass VISIBILITY_HIDDEN SelectionDAGLegalize { 523e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner TargetLowering &TLI; 533e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SelectionDAG &DAG; 543e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 556831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Libcall insertion helpers. 566831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 576831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// LastCALLSEQ_END - This keeps track of the CALLSEQ_END node that has been 586831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// legalized. We use this to ensure that calls are properly serialized 596831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// against each other, including inserted libcalls. 606831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand LastCALLSEQ_END; 616831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 626831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// IsLegalizingCall - This member is used *only* for purposes of providing 636831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// helpful assertions that a libcall isn't created while another call is 646831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// being legalized (which could lead to non-serialized call sequences). 656831a815999dde4cf801e2076e66b4943964daf2Chris Lattner bool IsLegalizingCall; 666831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 673e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner enum LegalizeAction { 6868a17febc70d9beb5353454e0c6d136ca1e87605Chris Lattner Legal, // The target natively supports this operation. 6968a17febc70d9beb5353454e0c6d136ca1e87605Chris Lattner Promote, // This operation should be executed in a larger type. 70d74ea2bbd8bb630331f35ead42d385249bd42af8Chris Lattner Expand // Try to expand this to other ops, otherwise use a libcall. 713e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner }; 726831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 733e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// ValueTypeActions - This is a bitvector that contains two bits for each 743e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// value type, where the two bits correspond to the LegalizeAction enum. 753e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// This can be queried with "getTypeAction(VT)". 7668a17febc70d9beb5353454e0c6d136ca1e87605Chris Lattner TargetLowering::ValueTypeActionImpl ValueTypeActions; 773e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 783e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// LegalizedNodes - For nodes that are of legal width, and that have more 793e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// than one use, this map indicates what regularized operand to use. This 803e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// allows us to avoid legalizing the same thing more than once. 813e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner std::map<SDOperand, SDOperand> LegalizedNodes; 823e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 8303c8546ec57523970874917854a2fb77b1ff598eChris Lattner /// PromotedNodes - For nodes that are below legal width, and that have more 8403c8546ec57523970874917854a2fb77b1ff598eChris Lattner /// than one use, this map indicates what promoted value to use. This allows 8503c8546ec57523970874917854a2fb77b1ff598eChris Lattner /// us to avoid promoting the same thing more than once. 8603c8546ec57523970874917854a2fb77b1ff598eChris Lattner std::map<SDOperand, SDOperand> PromotedNodes; 8703c8546ec57523970874917854a2fb77b1ff598eChris Lattner 88c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// ExpandedNodes - For nodes that need to be expanded this map indicates 89c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// which which operands are the expanded version of the input. This allows 90c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// us to avoid expanding the same node more than once. 913e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner std::map<SDOperand, std::pair<SDOperand, SDOperand> > ExpandedNodes; 923e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 93c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// SplitNodes - For vector nodes that need to be split, this map indicates 94c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// which which operands are the split version of the input. This allows us 95c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// to avoid splitting the same node more than once. 96c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::map<SDOperand, std::pair<SDOperand, SDOperand> > SplitNodes; 97c7029805ef35ce9805931067b841e6af11db382eChris Lattner 98c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// PackedNodes - For nodes that need to be packed from MVT::Vector types to 99c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// concrete packed types, this contains the mapping of ones we have already 100c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// processed to the result. 101c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::map<SDOperand, SDOperand> PackedNodes; 102c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1038afc48e44ad8868c1d41511db645e2ba1a4b894eChris Lattner void AddLegalizedOperand(SDOperand From, SDOperand To) { 10469a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner LegalizedNodes.insert(std::make_pair(From, To)); 10569a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner // If someone requests legalization of the new node, return itself. 10669a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner if (From != To) 10769a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner LegalizedNodes.insert(std::make_pair(To, To)); 1088afc48e44ad8868c1d41511db645e2ba1a4b894eChris Lattner } 10903c8546ec57523970874917854a2fb77b1ff598eChris Lattner void AddPromotedOperand(SDOperand From, SDOperand To) { 11003c8546ec57523970874917854a2fb77b1ff598eChris Lattner bool isNew = PromotedNodes.insert(std::make_pair(From, To)).second; 11103c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(isNew && "Got into the map somehow?"); 11269a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner // If someone requests legalization of the new node, return itself. 11369a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner LegalizedNodes.insert(std::make_pair(To, To)); 11403c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 1158afc48e44ad8868c1d41511db645e2ba1a4b894eChris Lattner 1163e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnerpublic: 1173e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1189c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner SelectionDAGLegalize(SelectionDAG &DAG); 1193e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1203e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// getTypeAction - Return how we should legalize values of this type, either 1213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// it is already legal or we need to expand it into multiple registers of 1223e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// smaller integer type, or we need to promote it to a larger type. 1233e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner LegalizeAction getTypeAction(MVT::ValueType VT) const { 12468a17febc70d9beb5353454e0c6d136ca1e87605Chris Lattner return (LegalizeAction)ValueTypeActions.getTypeAction(VT); 1253e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1263e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1273e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// isTypeLegal - Return true if this type is legal on this target. 1283e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// 1293e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner bool isTypeLegal(MVT::ValueType VT) const { 1303e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner return getTypeAction(VT) == Legal; 1313e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1323e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1333e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner void LegalizeDAG(); 1343e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 135456a93afcec7740c45cafa8354317f7b17987a6dChris Lattnerprivate: 136c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// HandleOp - Legalize, Promote, Expand or Pack the specified operand as 137c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// appropriate for its type. 138c7029805ef35ce9805931067b841e6af11db382eChris Lattner void HandleOp(SDOperand Op); 139c7029805ef35ce9805931067b841e6af11db382eChris Lattner 140c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// LegalizeOp - We know that the specified value has a legal type. 141c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// Recursively ensure that the operands have legal types, then return the 142c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// result. 1433e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand LegalizeOp(SDOperand O); 144c7029805ef35ce9805931067b841e6af11db382eChris Lattner 145c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// PromoteOp - Given an operation that produces a value in an invalid type, 146c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// promote it to compute the value into a larger type. The produced value 147c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// will have the correct bits for the low portion of the register, but no 148c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// guarantee is made about the top bits: it may be zero, sign-extended, or 149c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// garbage. 15003c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDOperand PromoteOp(SDOperand O); 1513e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 152c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// ExpandOp - Expand the specified SDOperand into its two component pieces 153c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// Lo&Hi. Note that the Op MUST be an expanded type. As a result of this, 154c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// the LegalizeNodes map is filled in for any results that are not expanded, 155c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// the ExpandedNodes map is filled in for any results that are expanded, and 156c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// the Lo/Hi values are returned. This applies to integer types and Vector 157c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// types. 158c7029805ef35ce9805931067b841e6af11db382eChris Lattner void ExpandOp(SDOperand O, SDOperand &Lo, SDOperand &Hi); 159c7029805ef35ce9805931067b841e6af11db382eChris Lattner 160c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// SplitVectorOp - Given an operand of MVT::Vector type, break it down into 161c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// two smaller values of MVT::Vector type. 162c7029805ef35ce9805931067b841e6af11db382eChris Lattner void SplitVectorOp(SDOperand O, SDOperand &Lo, SDOperand &Hi); 163c7029805ef35ce9805931067b841e6af11db382eChris Lattner 164c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// PackVectorOp - Given an operand of MVT::Vector type, convert it into the 165c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// equivalent operation that returns a packed value (e.g. MVT::V4F32). When 166c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// this is called, we know that PackedVT is the right type for the result and 167c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// we know that this type is legal for the target. 168c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand PackVectorOp(SDOperand O, MVT::ValueType PackedVT); 169c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1704352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// isShuffleLegal - Return true if a vector shuffle is legal with the 1714352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// specified mask and type. Targets can specify exactly which masks they 1724352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// support and the code generator is tasked with not creating illegal masks. 1734352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// 1744352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// Note that this will also return true for shuffles that are promoted to a 1754352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// different type. 1764352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// 1774352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// If this is a legal shuffle, this method returns the (possibly promoted) 1784352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// build_vector Mask. If it's not a legal shuffle, it returns null. 1794352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner SDNode *isShuffleLegal(MVT::ValueType VT, SDOperand Mask) const; 1804352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 181c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner bool LegalizeAllNodesNotLeadingTo(SDNode *N, SDNode *Dest, 182c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner std::set<SDNode*> &NodesLeadingTo); 1836831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 184750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman void LegalizeSetCCOperands(SDOperand &LHS, SDOperand &RHS, SDOperand &CC); 185750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 186ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand CreateStackTemporary(MVT::ValueType VT); 187ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 18877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand ExpandLibCall(const char *Name, SDNode *Node, 18977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand &Hi); 19077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand ExpandIntToFP(bool isSigned, MVT::ValueType DestTy, 19177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand Source); 192cad063f1a8ecda4fd556a733dc5eaa8a96acb80dChris Lattner 19335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner SDOperand ExpandBIT_CONVERT(MVT::ValueType DestVT, SDOperand SrcOp); 194ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand ExpandBUILD_VECTOR(SDNode *Node); 1954352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner SDOperand ExpandSCALAR_TO_VECTOR(SDNode *Node); 1966269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey SDOperand ExpandLegalINT_TO_FP(bool isSigned, 1976269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey SDOperand LegalOp, 1986269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey MVT::ValueType DestVT); 1995a8441ea3fc145393d6274156bd05c4a006099eaNate Begeman SDOperand PromoteLegalINT_TO_FP(SDOperand LegalOp, MVT::ValueType DestVT, 2005a8441ea3fc145393d6274156bd05c4a006099eaNate Begeman bool isSigned); 2011618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner SDOperand PromoteLegalFP_TO_INT(SDOperand LegalOp, MVT::ValueType DestVT, 2021618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner bool isSigned); 20300b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen 204456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand ExpandBSWAP(SDOperand Op); 205456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand ExpandBitCount(unsigned Opc, SDOperand Op); 206e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner bool ExpandShift(unsigned Opc, SDOperand Op, SDOperand Amt, 207e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner SDOperand &Lo, SDOperand &Hi); 2085b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner void ExpandShiftParts(unsigned NodeOp, SDOperand Op, SDOperand Amt, 2095b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand &Lo, SDOperand &Hi); 210b9fa3bc8f39bf1e8df48b85eae4563032dd20bfcChris Lattner 2111597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SDOperand LowerVEXTRACT_VECTOR_ELT(SDOperand Op); 2124aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner SDOperand ExpandEXTRACT_VECTOR_ELT(SDOperand Op); 2131597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 2143e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand getIntPtrConstant(uint64_t Val) { 2153e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner return DAG.getConstant(Val, TLI.getPointerTy()); 2163e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 2173e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner}; 2183e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 2193e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 2204352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// isVectorShuffleLegal - Return true if a vector shuffle is legal with the 2214352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// specified mask and type. Targets can specify exactly which masks they 2224352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// support and the code generator is tasked with not creating illegal masks. 2234352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// 2244352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// Note that this will also return true for shuffles that are promoted to a 2254352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// different type. 2264352cc9e217e4482ad53f5a7b92c3543f569eb6eChris LattnerSDNode *SelectionDAGLegalize::isShuffleLegal(MVT::ValueType VT, 2274352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner SDOperand Mask) const { 2284352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner switch (TLI.getOperationAction(ISD::VECTOR_SHUFFLE, VT)) { 2294352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner default: return 0; 2304352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Legal: 2314352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Custom: 2324352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 2334352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Promote: { 2344352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // If this is promoted to a different type, convert the shuffle mask and 2354352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // ask if it is legal in the promoted type! 2364352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner MVT::ValueType NVT = TLI.getTypeToPromoteTo(ISD::VECTOR_SHUFFLE, VT); 2374352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 2384352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // If we changed # elements, change the shuffle mask. 2394352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner unsigned NumEltsGrowth = 2404352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner MVT::getVectorNumElements(NVT) / MVT::getVectorNumElements(VT); 2414352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner assert(NumEltsGrowth && "Cannot promote to vector type with fewer elts!"); 2424352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (NumEltsGrowth > 1) { 2434352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Renumber the elements. 244bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Ops; 2454352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner for (unsigned i = 0, e = Mask.getNumOperands(); i != e; ++i) { 2464352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner SDOperand InOp = Mask.getOperand(i); 2474352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner for (unsigned j = 0; j != NumEltsGrowth; ++j) { 2484352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (InOp.getOpcode() == ISD::UNDEF) 2494352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Ops.push_back(DAG.getNode(ISD::UNDEF, MVT::i32)); 2504352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner else { 2514352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner unsigned InEltNo = cast<ConstantSDNode>(InOp)->getValue(); 2524352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Ops.push_back(DAG.getConstant(InEltNo*NumEltsGrowth+j, MVT::i32)); 2534352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2544352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2554352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 256bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Mask = DAG.getNode(ISD::BUILD_VECTOR, NVT, &Ops[0], Ops.size()); 2574352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2584352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner VT = NVT; 2594352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 2604352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2614352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2624352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner return TLI.isShuffleMaskLegal(Mask, VT) ? Mask.Val : 0; 2634352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner} 2644352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 265c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// getScalarizedOpcode - Return the scalar opcode that corresponds to the 266c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// specified vector opcode. 267b89175feffa7148c05d1d30a8e382b8d321edae5Chris Lattnerstatic unsigned getScalarizedOpcode(unsigned VecOp, MVT::ValueType VT) { 2685fbb5d2459a5410590f285250faa604576308a93Nate Begeman switch (VecOp) { 2695fbb5d2459a5410590f285250faa604576308a93Nate Begeman default: assert(0 && "Don't know how to scalarize this opcode!"); 2703e1ce5a44d3d59b2b9ca68a21261f0f487d69269Evan Cheng case ISD::VADD: return MVT::isInteger(VT) ? ISD::ADD : ISD::FADD; 2713e1ce5a44d3d59b2b9ca68a21261f0f487d69269Evan Cheng case ISD::VSUB: return MVT::isInteger(VT) ? ISD::SUB : ISD::FSUB; 2723e1ce5a44d3d59b2b9ca68a21261f0f487d69269Evan Cheng case ISD::VMUL: return MVT::isInteger(VT) ? ISD::MUL : ISD::FMUL; 2733e1ce5a44d3d59b2b9ca68a21261f0f487d69269Evan Cheng case ISD::VSDIV: return MVT::isInteger(VT) ? ISD::SDIV: ISD::FDIV; 2743e1ce5a44d3d59b2b9ca68a21261f0f487d69269Evan Cheng case ISD::VUDIV: return MVT::isInteger(VT) ? ISD::UDIV: ISD::FDIV; 2753e1ce5a44d3d59b2b9ca68a21261f0f487d69269Evan Cheng case ISD::VAND: return MVT::isInteger(VT) ? ISD::AND : 0; 2763e1ce5a44d3d59b2b9ca68a21261f0f487d69269Evan Cheng case ISD::VOR: return MVT::isInteger(VT) ? ISD::OR : 0; 2773e1ce5a44d3d59b2b9ca68a21261f0f487d69269Evan Cheng case ISD::VXOR: return MVT::isInteger(VT) ? ISD::XOR : 0; 2785fbb5d2459a5410590f285250faa604576308a93Nate Begeman } 2795fbb5d2459a5410590f285250faa604576308a93Nate Begeman} 2803e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 2819c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris LattnerSelectionDAGLegalize::SelectionDAGLegalize(SelectionDAG &dag) 2829c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner : TLI(dag.getTargetLoweringInfo()), DAG(dag), 2839c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner ValueTypeActions(TLI.getValueTypeActions()) { 2846a648614e88586e85a36ceb5c1d3b84e4f55b458Nate Begeman assert(MVT::LAST_VALUETYPE <= 32 && 2853e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner "Too many value types for ValueTypeActions to hold!"); 2863e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 2873e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 28832fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner/// ComputeTopDownOrdering - Add the specified node to the Order list if it has 28932fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner/// not been visited yet and if all of its operands have already been visited. 29032fca00a23a9872c31999d054b4dd7c724276d9dChris Lattnerstatic void ComputeTopDownOrdering(SDNode *N, std::vector<SDNode*> &Order, 29132fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner std::map<SDNode*, unsigned> &Visited) { 29232fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner if (++Visited[N] != N->getNumOperands()) 29332fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner return; // Haven't visited all operands yet 29432fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 29532fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner Order.push_back(N); 29632fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 29732fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner if (N->hasOneUse()) { // Tail recurse in common case. 29832fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner ComputeTopDownOrdering(*N->use_begin(), Order, Visited); 29932fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner return; 30032fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner } 30132fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 30232fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // Now that we have N in, add anything that uses it if all of their operands 30332fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // are now done. 30432fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner for (SDNode::use_iterator UI = N->use_begin(), E = N->use_end(); UI != E;++UI) 30532fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner ComputeTopDownOrdering(*UI, Order, Visited); 30632fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner} 30732fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 3081618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner 3093e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnervoid SelectionDAGLegalize::LegalizeDAG() { 3106831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 3116831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = false; 3126831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 313ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // The legalize process is inherently a bottom-up recursive process (users 314ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // legalize their uses before themselves). Given infinite stack space, we 315ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // could just start legalizing on the root and traverse the whole graph. In 316ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // practice however, this causes us to run out of stack space on large basic 31732fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // blocks. To avoid this problem, compute an ordering of the nodes where each 31832fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // node is only legalized after all of its operands are legalized. 31932fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner std::map<SDNode*, unsigned> Visited; 32032fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner std::vector<SDNode*> Order; 321ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner 32232fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // Compute ordering from all of the leaves in the graphs, those (like the 32332fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // entry node) that have no operands. 32432fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner for (SelectionDAG::allnodes_iterator I = DAG.allnodes_begin(), 32532fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner E = DAG.allnodes_end(); I != E; ++I) { 326de202b3cda00f17ba2c047be7270b51f9585a413Chris Lattner if (I->getNumOperands() == 0) { 327de202b3cda00f17ba2c047be7270b51f9585a413Chris Lattner Visited[I] = 0 - 1U; 328de202b3cda00f17ba2c047be7270b51f9585a413Chris Lattner ComputeTopDownOrdering(I, Order, Visited); 329ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner } 330ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner } 331ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner 332de202b3cda00f17ba2c047be7270b51f9585a413Chris Lattner assert(Order.size() == Visited.size() && 333de202b3cda00f17ba2c047be7270b51f9585a413Chris Lattner Order.size() == 334de202b3cda00f17ba2c047be7270b51f9585a413Chris Lattner (unsigned)std::distance(DAG.allnodes_begin(), DAG.allnodes_end()) && 33532fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner "Error: DAG is cyclic!"); 33632fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner Visited.clear(); 337ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner 338c7029805ef35ce9805931067b841e6af11db382eChris Lattner for (unsigned i = 0, e = Order.size(); i != e; ++i) 339c7029805ef35ce9805931067b841e6af11db382eChris Lattner HandleOp(SDOperand(Order[i], 0)); 34032fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 34132fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // Finally, it's possible the root changed. Get the new root. 3423e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand OldRoot = DAG.getRoot(); 34332fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner assert(LegalizedNodes.count(OldRoot) && "Root didn't get legalized?"); 34432fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner DAG.setRoot(LegalizedNodes[OldRoot]); 3453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 3463e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandedNodes.clear(); 3473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner LegalizedNodes.clear(); 34871c42a0190300a8903aaea80467b88f15f327ea9Chris Lattner PromotedNodes.clear(); 349c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitNodes.clear(); 350c7029805ef35ce9805931067b841e6af11db382eChris Lattner PackedNodes.clear(); 3513e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 3523e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Remove dead nodes now. 353190a418bf6b49a4ef1c1980229a2f0d516e8a2cdChris Lattner DAG.RemoveDeadNodes(); 3543e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 3553e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 3566831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3576831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// FindCallEndFromCallStart - Given a chained node that is part of a call 3586831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// sequence, find the CALLSEQ_END node that terminates the call sequence. 3596831a815999dde4cf801e2076e66b4943964daf2Chris Lattnerstatic SDNode *FindCallEndFromCallStart(SDNode *Node) { 3606831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->getOpcode() == ISD::CALLSEQ_END) 3616831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Node; 3626831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->use_empty()) 3636831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return 0; // No CallSeqEnd 3646831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3656831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // The chain is usually at the end. 3666831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand TheChain(Node, Node->getNumValues()-1); 3676831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (TheChain.getValueType() != MVT::Other) { 3686831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Sometimes it's at the beginning. 3696831a815999dde4cf801e2076e66b4943964daf2Chris Lattner TheChain = SDOperand(Node, 0); 3706831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (TheChain.getValueType() != MVT::Other) { 3716831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Otherwise, hunt for it. 3726831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 1, e = Node->getNumValues(); i != e; ++i) 3736831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->getValueType(i) == MVT::Other) { 3746831a815999dde4cf801e2076e66b4943964daf2Chris Lattner TheChain = SDOperand(Node, i); 3756831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 3766831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3776831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3786831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Otherwise, we walked into a node without a chain. 3796831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (TheChain.getValueType() != MVT::Other) 3806831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return 0; 3816831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3826831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3836831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3846831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (SDNode::use_iterator UI = Node->use_begin(), 3856831a815999dde4cf801e2076e66b4943964daf2Chris Lattner E = Node->use_end(); UI != E; ++UI) { 3866831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3876831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Make sure to only follow users of our token chain. 3886831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDNode *User = *UI; 3896831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = User->getNumOperands(); i != e; ++i) 3906831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (User->getOperand(i) == TheChain) 3916831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (SDNode *Result = FindCallEndFromCallStart(User)) 3926831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Result; 3936831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3946831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return 0; 3956831a815999dde4cf801e2076e66b4943964daf2Chris Lattner} 3966831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3976831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// FindCallStartFromCallEnd - Given a chained node that is part of a call 3986831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// sequence, find the CALLSEQ_START node that initiates the call sequence. 3996831a815999dde4cf801e2076e66b4943964daf2Chris Lattnerstatic SDNode *FindCallStartFromCallEnd(SDNode *Node) { 4006831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(Node && "Didn't find callseq_start for a call??"); 4016831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->getOpcode() == ISD::CALLSEQ_START) return Node; 4026831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4036831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(Node->getOperand(0).getValueType() == MVT::Other && 4046831a815999dde4cf801e2076e66b4943964daf2Chris Lattner "Node doesn't have a token chain argument!"); 4056831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return FindCallStartFromCallEnd(Node->getOperand(0).Val); 4066831a815999dde4cf801e2076e66b4943964daf2Chris Lattner} 4076831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4086831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// LegalizeAllNodesNotLeadingTo - Recursively walk the uses of N, looking to 4096831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// see if any uses can reach Dest. If no dest operands can get to dest, 4106831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// legalize them, legalize ourself, and return false, otherwise, return true. 411c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// 412c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// Keep track of the nodes we fine that actually do lead to Dest in 413c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// NodesLeadingTo. This avoids retraversing them exponential number of times. 414c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// 415c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattnerbool SelectionDAGLegalize::LegalizeAllNodesNotLeadingTo(SDNode *N, SDNode *Dest, 416c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner std::set<SDNode*> &NodesLeadingTo) { 4176831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (N == Dest) return true; // N certainly leads to Dest :) 4186831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 419c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner // If we've already processed this node and it does lead to Dest, there is no 420c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner // need to reprocess it. 421c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner if (NodesLeadingTo.count(N)) return true; 422c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner 4236831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // If the first result of this node has been already legalized, then it cannot 4246831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // reach N. 4256831a815999dde4cf801e2076e66b4943964daf2Chris Lattner switch (getTypeAction(N->getValueType(0))) { 4266831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Legal: 4276831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (LegalizedNodes.count(SDOperand(N, 0))) return false; 4286831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 4296831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Promote: 4306831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (PromotedNodes.count(SDOperand(N, 0))) return false; 4316831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 4326831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Expand: 4336831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (ExpandedNodes.count(SDOperand(N, 0))) return false; 4346831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 4356831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 4366831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4376831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Okay, this node has not already been legalized. Check and legalize all 4386831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // operands. If none lead to Dest, then we can legalize this node. 4396831a815999dde4cf801e2076e66b4943964daf2Chris Lattner bool OperandsLeadToDest = false; 4406831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i) 4416831a815999dde4cf801e2076e66b4943964daf2Chris Lattner OperandsLeadToDest |= // If an operand leads to Dest, so do we. 442c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner LegalizeAllNodesNotLeadingTo(N->getOperand(i).Val, Dest, NodesLeadingTo); 4436831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 444c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner if (OperandsLeadToDest) { 445c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner NodesLeadingTo.insert(N); 446c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner return true; 447c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner } 4486831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4496831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Okay, this node looks safe, legalize it and return false. 45080edfb3af5ed214c5cd7797b37cb3bb024e98cc6Chris Lattner HandleOp(SDOperand(N, 0)); 4516831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return false; 4526831a815999dde4cf801e2076e66b4943964daf2Chris Lattner} 4536831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 454c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// HandleOp - Legalize, Promote, Expand or Pack the specified operand as 455c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// appropriate for its type. 456c7029805ef35ce9805931067b841e6af11db382eChris Lattnervoid SelectionDAGLegalize::HandleOp(SDOperand Op) { 457c7029805ef35ce9805931067b841e6af11db382eChris Lattner switch (getTypeAction(Op.getValueType())) { 458c7029805ef35ce9805931067b841e6af11db382eChris Lattner default: assert(0 && "Bad type action!"); 459c7029805ef35ce9805931067b841e6af11db382eChris Lattner case Legal: LegalizeOp(Op); break; 460c7029805ef35ce9805931067b841e6af11db382eChris Lattner case Promote: PromoteOp(Op); break; 461c7029805ef35ce9805931067b841e6af11db382eChris Lattner case Expand: 462c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (Op.getValueType() != MVT::Vector) { 463c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand X, Y; 464c7029805ef35ce9805931067b841e6af11db382eChris Lattner ExpandOp(Op, X, Y); 465c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else { 466c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDNode *N = Op.Val; 467c7029805ef35ce9805931067b841e6af11db382eChris Lattner unsigned NumOps = N->getNumOperands(); 468c7029805ef35ce9805931067b841e6af11db382eChris Lattner unsigned NumElements = 469c7029805ef35ce9805931067b841e6af11db382eChris Lattner cast<ConstantSDNode>(N->getOperand(NumOps-2))->getValue(); 470c7029805ef35ce9805931067b841e6af11db382eChris Lattner MVT::ValueType EVT = cast<VTSDNode>(N->getOperand(NumOps-1))->getVT(); 471c7029805ef35ce9805931067b841e6af11db382eChris Lattner MVT::ValueType PackedVT = getVectorType(EVT, NumElements); 472c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (PackedVT != MVT::Other && TLI.isTypeLegal(PackedVT)) { 473c7029805ef35ce9805931067b841e6af11db382eChris Lattner // In the common case, this is a legal vector type, convert it to the 474c7029805ef35ce9805931067b841e6af11db382eChris Lattner // packed operation and type now. 475c7029805ef35ce9805931067b841e6af11db382eChris Lattner PackVectorOp(Op, PackedVT); 476c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else if (NumElements == 1) { 477c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Otherwise, if this is a single element vector, convert it to a 478c7029805ef35ce9805931067b841e6af11db382eChris Lattner // scalar operation. 479c7029805ef35ce9805931067b841e6af11db382eChris Lattner PackVectorOp(Op, EVT); 480c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else { 481c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Otherwise, this is a multiple element vector that isn't supported. 482c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Split it in half and legalize both parts. 483c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand X, Y; 4844794a6b6a09e3440438cd653ec09cf0c2e45be1cChris Lattner SplitVectorOp(Op, X, Y); 485c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 486c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 487c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 488c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 489c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 4906831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4916831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 492c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// LegalizeOp - We know that the specified value has a legal type. 493c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// Recursively ensure that the operands have legal types, then return the 494c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// result. 4953e928bbd6153eb08641cbd0ad7d8487378a8b12aChris LattnerSDOperand SelectionDAGLegalize::LegalizeOp(SDOperand Op) { 496c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner assert(isTypeLegal(Op.getValueType()) && 497e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner "Caller should expand or promote operands that are not legal!"); 49845982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner SDNode *Node = Op.Val; 499e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner 5003e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // If this operation defines any values that cannot be represented in a 501e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner // register on this target, make sure to expand or promote them. 50245982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner if (Node->getNumValues() > 1) { 50345982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 504c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (getTypeAction(Node->getValueType(i)) != Legal) { 505c7029805ef35ce9805931067b841e6af11db382eChris Lattner HandleOp(Op.getValue(i)); 5063e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(LegalizedNodes.count(Op) && 507c7029805ef35ce9805931067b841e6af11db382eChris Lattner "Handling didn't add legal operands!"); 50803c8546ec57523970874917854a2fb77b1ff598eChris Lattner return LegalizedNodes[Op]; 5093e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 5103e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 5113e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 51245982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // Note that LegalizeOp may be reentered even from single-use nodes, which 51345982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // means that we always must cache transformed nodes. 514e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner std::map<SDOperand, SDOperand>::iterator I = LegalizedNodes.find(Op); 515e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner if (I != LegalizedNodes.end()) return I->second; 5163e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 5179373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman SDOperand Tmp1, Tmp2, Tmp3, Tmp4; 5183e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand Result = Op; 519456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner bool isCustom = false; 520456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 5213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getOpcode()) { 522948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::FrameIndex: 523948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::EntryToken: 524948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::Register: 525948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::BasicBlock: 526948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetFrameIndex: 52737efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::TargetJumpTable: 528948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetConstant: 5293181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner case ISD::TargetConstantFP: 530948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetConstantPool: 531948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetGlobalAddress: 532948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetExternalSymbol: 533948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::VALUETYPE: 534948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::SRCVALUE: 535948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::STRING: 536948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::CONDCODE: 537948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner // Primitives must all be legal. 538948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner assert(TLI.isOperationLegal(Node->getValueType(0), Node->getValueType(0)) && 539948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner "This must be legal!"); 540948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner break; 5413e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner default: 542d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner if (Node->getOpcode() >= ISD::BUILTIN_OP_END) { 543d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // If this is a target node, legalize it by legalizing the operands then 544d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // passing it through. 545f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 546c5d7d7c715f7b7a4eeea1ceaafefc3d1d6df2addChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 547d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 548c5d7d7c715f7b7a4eeea1ceaafefc3d1d6df2addChris Lattner 549f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result.getValue(0), &Ops[0], Ops.size()); 550d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner 551d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 552d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner AddLegalizedOperand(Op.getValue(i), Result.getValue(i)); 553d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner return Result.getValue(Op.ResNo); 554d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner } 555d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // Otherwise this is an unhandled builtin node. splat. 556e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 5573e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner std::cerr << "NODE: "; Node->dump(); std::cerr << "\n"; 558e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 5593e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(0 && "Do not know how to legalize this operator!"); 5603e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner abort(); 561beec30eaf301bd6882cd06800b5175b94f033f9dAndrew Lenharth case ISD::JumpTableRelocBase: 562beec30eaf301bd6882cd06800b5175b94f033f9dAndrew Lenharth switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 563beec30eaf301bd6882cd06800b5175b94f033f9dAndrew Lenharth case TargetLowering::Custom: 564beec30eaf301bd6882cd06800b5175b94f033f9dAndrew Lenharth Tmp1 = TLI.LowerOperation(Op, DAG); 565beec30eaf301bd6882cd06800b5175b94f033f9dAndrew Lenharth if (Tmp1.Val) Result = Tmp1; 566beec30eaf301bd6882cd06800b5175b94f033f9dAndrew Lenharth break; 567beec30eaf301bd6882cd06800b5175b94f033f9dAndrew Lenharth default: 568beec30eaf301bd6882cd06800b5175b94f033f9dAndrew Lenharth Result = LegalizeOp(Node->getOperand(0)); 569beec30eaf301bd6882cd06800b5175b94f033f9dAndrew Lenharth break; 570beec30eaf301bd6882cd06800b5175b94f033f9dAndrew Lenharth } 571beec30eaf301bd6882cd06800b5175b94f033f9dAndrew Lenharth break; 5723e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::GlobalAddress: 57303c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::ExternalSymbol: 57437efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::ConstantPool: 57537efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::JumpTable: // Nothing to do. 5760c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 5770c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner default: assert(0 && "This action is not supported yet!"); 578948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case TargetLowering::Custom: 579948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner Tmp1 = TLI.LowerOperation(Op, DAG); 580948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner if (Tmp1.Val) Result = Tmp1; 581948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner // FALLTHROUGH if the target doesn't want to lower this op after all. 5820c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner case TargetLowering::Legal: 5830c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner break; 5840c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner } 5853e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 58608951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner case ISD::AssertSext: 58708951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner case ISD::AssertZext: 58808951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 589c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 59008951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner break; 591308575be66ec3870d27b19df044fda18448feb41Chris Lattner case ISD::MERGE_VALUES: 592c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner // Legalize eliminates MERGE_VALUES nodes. 593456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = Node->getOperand(Op.ResNo); 594456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 59569a52155d2eff066b49dbac385113002fd9dba14Chris Lattner case ISD::CopyFromReg: 59669a52155d2eff066b49dbac385113002fd9dba14Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 5977310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner Result = Op.getValue(0); 598f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner if (Node->getNumValues() == 2) { 599c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 6007310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } else { 601f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner assert(Node->getNumValues() == 3 && "Invalid copyfromreg!"); 602c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Node->getNumOperands() == 3) { 603f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(2)); 604c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1),Tmp2); 605c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else { 606c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 607c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } 6087310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner AddLegalizedOperand(Op.getValue(2), Result.getValue(2)); 6097310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 61013c184de29c09294ed63b01ac43e1b46c049278eChris Lattner // Since CopyFromReg produces two values, make sure to remember that we 61113c184de29c09294ed63b01ac43e1b46c049278eChris Lattner // legalized both of them. 61213c184de29c09294ed63b01ac43e1b46c049278eChris Lattner AddLegalizedOperand(Op.getValue(0), Result); 61313c184de29c09294ed63b01ac43e1b46c049278eChris Lattner AddLegalizedOperand(Op.getValue(1), Result.getValue(1)); 61413c184de29c09294ed63b01ac43e1b46c049278eChris Lattner return Result.getValue(Op.ResNo); 615fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: { 616fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman MVT::ValueType VT = Op.getValueType(); 617fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman switch (TLI.getOperationAction(ISD::UNDEF, VT)) { 618ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman default: assert(0 && "This action is not supported yet!"); 619ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman case TargetLowering::Expand: 620fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman if (MVT::isInteger(VT)) 621fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Result = DAG.getConstant(0, VT); 622fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman else if (MVT::isFloatingPoint(VT)) 623fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Result = DAG.getConstantFP(0, VT); 624fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman else 625fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman assert(0 && "Unknown value type!"); 626fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 627ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman case TargetLowering::Legal: 628fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 629fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman } 630fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 631fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman } 632d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner 63348b61a729df6576c8833a83893d4086bddff69a5Chris Lattner case ISD::INTRINSIC_W_CHAIN: 63448b61a729df6576c8833a83893d4086bddff69a5Chris Lattner case ISD::INTRINSIC_WO_CHAIN: 63548b61a729df6576c8833a83893d4086bddff69a5Chris Lattner case ISD::INTRINSIC_VOID: { 636f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 637d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 638d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 639f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 64010d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner 64110d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner // Allow the target to custom lower its intrinsics if it wants to. 64248b61a729df6576c8833a83893d4086bddff69a5Chris Lattner if (TLI.getOperationAction(Node->getOpcode(), MVT::Other) == 64310d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner TargetLowering::Custom) { 64410d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 64510d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner if (Tmp3.Val) Result = Tmp3; 64613fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner } 64713fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner 64813fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner if (Result.Val->getNumValues() == 1) break; 64913fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner 65013fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner // Must have return value and chain result. 65113fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner assert(Result.Val->getNumValues() == 2 && 65213fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner "Cannot return more than two values!"); 65313fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner 65413fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner // Since loads produce two values, make sure to remember that we 65513fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner // legalized both of them. 65613fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 65713fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 65813fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner return Result.getValue(Op.ResNo); 659d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner } 66036ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 66136ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner case ISD::LOCATION: 66236ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner assert(Node->getNumOperands() == 5 && "Invalid LOCATION node!"); 66336ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the input chain. 66436ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 66536ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner switch (TLI.getOperationAction(ISD::LOCATION, MVT::Other)) { 66636ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner case TargetLowering::Promote: 66736ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner default: assert(0 && "This action is not supported yet!"); 668f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey case TargetLowering::Expand: { 669b2efb853f00d45b1c8d57f92acd0028fbdeffda6Jim Laskey MachineDebugInfo *DebugInfo = DAG.getMachineDebugInfo(); 670abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey bool useDEBUG_LOC = TLI.isOperationLegal(ISD::DEBUG_LOC, MVT::Other); 671abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey bool useDEBUG_LABEL = TLI.isOperationLegal(ISD::DEBUG_LABEL, MVT::Other); 672abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 673abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey if (DebugInfo && (useDEBUG_LOC || useDEBUG_LABEL)) { 674abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey const std::string &FName = 675e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey cast<StringSDNode>(Node->getOperand(3))->getValue(); 676abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey const std::string &DirName = 677e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey cast<StringSDNode>(Node->getOperand(4))->getValue(); 678063e765345fd49df0f53b807e57ada7c2ded7e16Jim Laskey unsigned SrcFile = DebugInfo->RecordSource(DirName, FName); 679abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 680bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Ops; 681abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(Tmp1); // chain 682abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey SDOperand LineOp = Node->getOperand(1); 683abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey SDOperand ColOp = Node->getOperand(2); 684abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 685abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey if (useDEBUG_LOC) { 686abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(LineOp); // line # 687abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(ColOp); // col # 688abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(DAG.getConstant(SrcFile, MVT::i32)); // source file id 689bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Result = DAG.getNode(ISD::DEBUG_LOC, MVT::Other, &Ops[0], Ops.size()); 690abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } else { 691d0e58e36a9857c45ecdc910ec8db04c21e143db5Jim Laskey unsigned Line = cast<ConstantSDNode>(LineOp)->getValue(); 692d0e58e36a9857c45ecdc910ec8db04c21e143db5Jim Laskey unsigned Col = cast<ConstantSDNode>(ColOp)->getValue(); 693abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey unsigned ID = DebugInfo->RecordLabel(Line, Col, SrcFile); 694abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(DAG.getConstant(ID, MVT::i32)); 695bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Result = DAG.getNode(ISD::DEBUG_LABEL, MVT::Other,&Ops[0],Ops.size()); 696abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } 697e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey } else { 698e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey Result = Tmp1; // chain 699e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey } 70036ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 701e773673d8e0094bbff2f9ab2f2da9ecb5c4d0909Chris Lattner } 70236ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner case TargetLowering::Legal: 7039ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner if (Tmp1 != Node->getOperand(0) || 7049ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner getTypeAction(Node->getOperand(1).getValueType()) == Promote) { 705f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 70636ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Ops.push_back(Tmp1); 7079ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner if (getTypeAction(Node->getOperand(1).getValueType()) == Legal) { 7089ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(Node->getOperand(1)); // line # must be legal. 7099ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(Node->getOperand(2)); // col # must be legal. 7109ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner } else { 7119ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner // Otherwise promote them. 7129ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(PromoteOp(Node->getOperand(1))); 7139ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(PromoteOp(Node->getOperand(2))); 7149ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner } 71536ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Ops.push_back(Node->getOperand(3)); // filename must be legal. 71636ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Ops.push_back(Node->getOperand(4)); // working dir # must be legal. 717f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 71836ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner } 71936ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 72036ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner } 72136ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 722f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey 723f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey case ISD::DEBUG_LOC: 724abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey assert(Node->getNumOperands() == 4 && "Invalid DEBUG_LOC node!"); 725f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey switch (TLI.getOperationAction(ISD::DEBUG_LOC, MVT::Other)) { 726f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey default: assert(0 && "This action is not supported yet!"); 727abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey case TargetLowering::Legal: 728abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 729abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the line #. 730abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the col #. 731abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp4 = LegalizeOp(Node->getOperand(3)); // Legalize the source file id. 732c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4); 733abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey break; 734abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } 735abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey break; 736abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 737abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey case ISD::DEBUG_LABEL: 738abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey assert(Node->getNumOperands() == 2 && "Invalid DEBUG_LABEL node!"); 739abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey switch (TLI.getOperationAction(ISD::DEBUG_LABEL, MVT::Other)) { 740abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey default: assert(0 && "This action is not supported yet!"); 741abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey case TargetLowering::Legal: 742abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 743abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the label id. 744c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 745f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey break; 746f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey } 747551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman break; 74836ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 7493e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::Constant: 7503e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // We know we don't need to expand constants here, constants only have one 7513e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // value and we check that it is fine above. 7523e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 7533e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // FIXME: Maybe we should handle things like targets that don't support full 7543e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // 32-bit immediates? 7553e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 7563e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ConstantFP: { 7573e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Spill FP immediates to the constant pool if the target cannot directly 7583e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // codegen them. Targets often have some immediate values that can be 7593e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // efficiently generated into an FP register without a load. We explicitly 7603e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // leave these constants as ConstantFP nodes for the target to deal with. 7613e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ConstantFPSDNode *CFP = cast<ConstantFPSDNode>(Node); 7623e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 7633e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Check to see if this FP immediate is already legal. 7643e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner bool isLegal = false; 7653e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner for (TargetLowering::legal_fpimm_iterator I = TLI.legal_fpimm_begin(), 7663e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner E = TLI.legal_fpimm_end(); I != E; ++I) 7673e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner if (CFP->isExactlyValue(*I)) { 7683e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner isLegal = true; 7693e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 7703e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 7713e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 7723181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner // If this is a legal constant, turn it into a TargetConstantFP node. 7733181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner if (isLegal) { 7743181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner Result = DAG.getTargetConstantFP(CFP->getValue(), CFP->getValueType(0)); 7753181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner break; 7763181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner } 7773181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner 7783181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner switch (TLI.getOperationAction(ISD::ConstantFP, CFP->getValueType(0))) { 7793181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner default: assert(0 && "This action is not supported yet!"); 7803181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner case TargetLowering::Custom: 7813181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 7823181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner if (Tmp3.Val) { 7833181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner Result = Tmp3; 7843181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner break; 7853181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner } 7863181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner // FALLTHROUGH 7873181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner case TargetLowering::Expand: 7883e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Otherwise we need to spill the constant to memory. 7893e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner bool Extend = false; 7903e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 791456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // If a FP immediate is precise when represented as a float and if the 792456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // target can do an extending load from float to double, we put it into 793456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // the constant pool as a float, even if it's is statically typed as a 794456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // double. 7953e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner MVT::ValueType VT = CFP->getValueType(0); 7963e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner bool isDouble = VT == MVT::f64; 7973e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ConstantFP *LLVMC = ConstantFP::get(isDouble ? Type::DoubleTy : 7983e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Type::FloatTy, CFP->getValue()); 79999939d39c9555ebecbcd24c1b607eae52804ea37Chris Lattner if (isDouble && CFP->isExactlyValue((float)CFP->getValue()) && 80099939d39c9555ebecbcd24c1b607eae52804ea37Chris Lattner // Only do this if the target has a native EXTLOAD instruction from 80199939d39c9555ebecbcd24c1b607eae52804ea37Chris Lattner // f32. 802c548428c5d7328592f4db6f6cd815af18b3152a3Evan Cheng TLI.isLoadXLegal(ISD::EXTLOAD, MVT::f32)) { 8033e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner LLVMC = cast<ConstantFP>(ConstantExpr::getCast(LLVMC, Type::FloatTy)); 8043e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner VT = MVT::f32; 8053e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Extend = true; 8063e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 807edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 808456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand CPIdx = DAG.getConstantPool(LLVMC, TLI.getPointerTy()); 809f8161d83f0201a32a33a0c875eb43df81d8586abChris Lattner if (Extend) { 8105f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner Result = DAG.getExtLoad(ISD::EXTLOAD, MVT::f64, DAG.getEntryNode(), 811466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng CPIdx, NULL, 0, MVT::f32); 812f8161d83f0201a32a33a0c875eb43df81d8586abChris Lattner } else { 813466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getLoad(VT, DAG.getEntryNode(), CPIdx, NULL, 0); 814f8161d83f0201a32a33a0c875eb43df81d8586abChris Lattner } 8153e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 8163e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 8173e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 818040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner case ISD::TokenFactor: 819040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner if (Node->getNumOperands() == 2) { 820c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 821c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 822c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 823c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else if (Node->getNumOperands() == 3) { 824c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 825c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 826c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); 827c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 828040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner } else { 829f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 830040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner // Legalize the operands. 831c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 832c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 833f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 834a385e9b20fa7d37d3842ce15afd412f617d83a27Chris Lattner } 835a385e9b20fa7d37d3842ce15afd412f617d83a27Chris Lattner break; 836fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner 837fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner case ISD::FORMAL_ARGUMENTS: 838f4ec817299a4187044a6162c2f520772b3ad69a0Chris Lattner case ISD::CALL: 839fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner // The only option for this is to custom lower it. 840b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp3 = TLI.LowerOperation(Result.getValue(0), DAG); 841b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner assert(Tmp3.Val && "Target didn't custom lower this node!"); 842b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner assert(Tmp3.Val->getNumValues() == Result.Val->getNumValues() && 843b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner "Lowering call/formal_arguments produced unexpected # results!"); 844e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner 845f4ec817299a4187044a6162c2f520772b3ad69a0Chris Lattner // Since CALL/FORMAL_ARGUMENTS nodes produce multiple values, make sure to 846e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner // remember that we legalized all of them, so it doesn't get relegalized. 847b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner for (unsigned i = 0, e = Tmp3.Val->getNumValues(); i != e; ++i) { 848b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp1 = LegalizeOp(Tmp3.getValue(i)); 849e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner if (Op.ResNo == i) 850e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner Tmp2 = Tmp1; 851e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner AddLegalizedOperand(SDOperand(Node, i), Tmp1); 852e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner } 853e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner return Tmp2; 854fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner 855b2827b0901162169bb2692b77a839c9767849134Chris Lattner case ISD::BUILD_VECTOR: 856b2827b0901162169bb2692b77a839c9767849134Chris Lattner switch (TLI.getOperationAction(ISD::BUILD_VECTOR, Node->getValueType(0))) { 8572332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: assert(0 && "This action is not supported yet!"); 8582332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Custom: 8592332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 8602332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner if (Tmp3.Val) { 8612332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = Tmp3; 8622332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 8632332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 8642332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // FALLTHROUGH 865ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case TargetLowering::Expand: 866ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Result = ExpandBUILD_VECTOR(Result.Val); 867b2827b0901162169bb2692b77a839c9767849134Chris Lattner break; 8682332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 8692332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 8702332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case ISD::INSERT_VECTOR_ELT: 8712332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // InVec 8722332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // InVal 8732332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // InEltNo 8742332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 8752332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner 8762332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner switch (TLI.getOperationAction(ISD::INSERT_VECTOR_ELT, 8772332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Node->getValueType(0))) { 8782332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: assert(0 && "This action is not supported yet!"); 8792332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Legal: 8802332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 8812332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Custom: 8822332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 8832332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner if (Tmp3.Val) { 8842332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = Tmp3; 8852332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 8862332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 8872332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // FALLTHROUGH 8882332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Expand: { 8898d5a894501b7546dee94df03118b90126c420820Chris Lattner // If the insert index is a constant, codegen this as a scalar_to_vector, 8908d5a894501b7546dee94df03118b90126c420820Chris Lattner // then a shuffle that inserts it into the right position in the vector. 8918d5a894501b7546dee94df03118b90126c420820Chris Lattner if (ConstantSDNode *InsertPos = dyn_cast<ConstantSDNode>(Tmp3)) { 8928d5a894501b7546dee94df03118b90126c420820Chris Lattner SDOperand ScVec = DAG.getNode(ISD::SCALAR_TO_VECTOR, 8938d5a894501b7546dee94df03118b90126c420820Chris Lattner Tmp1.getValueType(), Tmp2); 8948d5a894501b7546dee94df03118b90126c420820Chris Lattner 8958d5a894501b7546dee94df03118b90126c420820Chris Lattner unsigned NumElts = MVT::getVectorNumElements(Tmp1.getValueType()); 8968d5a894501b7546dee94df03118b90126c420820Chris Lattner MVT::ValueType ShufMaskVT = MVT::getIntVectorWithNumElements(NumElts); 8978d5a894501b7546dee94df03118b90126c420820Chris Lattner MVT::ValueType ShufMaskEltVT = MVT::getVectorBaseType(ShufMaskVT); 8988d5a894501b7546dee94df03118b90126c420820Chris Lattner 8998d5a894501b7546dee94df03118b90126c420820Chris Lattner // We generate a shuffle of InVec and ScVec, so the shuffle mask should 9008d5a894501b7546dee94df03118b90126c420820Chris Lattner // be 0,1,2,3,4,5... with the appropriate element replaced with elt 0 of 9018d5a894501b7546dee94df03118b90126c420820Chris Lattner // the RHS. 902bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> ShufOps; 9038d5a894501b7546dee94df03118b90126c420820Chris Lattner for (unsigned i = 0; i != NumElts; ++i) { 9048d5a894501b7546dee94df03118b90126c420820Chris Lattner if (i != InsertPos->getValue()) 9058d5a894501b7546dee94df03118b90126c420820Chris Lattner ShufOps.push_back(DAG.getConstant(i, ShufMaskEltVT)); 9068d5a894501b7546dee94df03118b90126c420820Chris Lattner else 9078d5a894501b7546dee94df03118b90126c420820Chris Lattner ShufOps.push_back(DAG.getConstant(NumElts, ShufMaskEltVT)); 9088d5a894501b7546dee94df03118b90126c420820Chris Lattner } 909bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand ShufMask = DAG.getNode(ISD::BUILD_VECTOR, ShufMaskVT, 910bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &ShufOps[0], ShufOps.size()); 9118d5a894501b7546dee94df03118b90126c420820Chris Lattner 9128d5a894501b7546dee94df03118b90126c420820Chris Lattner Result = DAG.getNode(ISD::VECTOR_SHUFFLE, Tmp1.getValueType(), 9138d5a894501b7546dee94df03118b90126c420820Chris Lattner Tmp1, ScVec, ShufMask); 9148d5a894501b7546dee94df03118b90126c420820Chris Lattner Result = LegalizeOp(Result); 9158d5a894501b7546dee94df03118b90126c420820Chris Lattner break; 9168d5a894501b7546dee94df03118b90126c420820Chris Lattner } 9178d5a894501b7546dee94df03118b90126c420820Chris Lattner 9182332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // If the target doesn't support this, we have to spill the input vector 9192332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // to a temporary stack slot, update the element, then reload it. This is 9202332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // badness. We could also load the value into a vector register (either 9212332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // with a "move to register" or "extload into register" instruction, then 9222332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // permute it into place, if the idx is a constant and if the idx is 9232332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // supported by the target. 924f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng MVT::ValueType VT = Tmp1.getValueType(); 925f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng MVT::ValueType EltVT = Tmp2.getValueType(); 926f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng MVT::ValueType IdxVT = Tmp3.getValueType(); 927f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng MVT::ValueType PtrVT = TLI.getPointerTy(); 928f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng SDOperand StackPtr = CreateStackTemporary(VT); 929eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Store the vector. 930786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng SDOperand Ch = DAG.getStore(DAG.getEntryNode(), 931786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng Tmp1, StackPtr, DAG.getSrcValue(NULL)); 932eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng 933eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Truncate or zero extend offset to target pointer type. 934f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng unsigned CastOpc = (IdxVT > PtrVT) ? ISD::TRUNCATE : ISD::ZERO_EXTEND; 935f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng Tmp3 = DAG.getNode(CastOpc, PtrVT, Tmp3); 936eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Add the offset to the index. 937f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng unsigned EltSize = MVT::getSizeInBits(EltVT)/8; 938f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng Tmp3 = DAG.getNode(ISD::MUL, IdxVT, Tmp3,DAG.getConstant(EltSize, IdxVT)); 939f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng SDOperand StackPtr2 = DAG.getNode(ISD::ADD, IdxVT, Tmp3, StackPtr); 940eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Store the scalar value. 941786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng Ch = DAG.getStore(Ch, Tmp2, StackPtr2, DAG.getSrcValue(NULL)); 942eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Load the updated vector. 943466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getLoad(VT, Ch, StackPtr, NULL, 0); 9442332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 9452332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 9462332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 9472332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 948ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case ISD::SCALAR_TO_VECTOR: 9494352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (!TLI.isTypeLegal(Node->getOperand(0).getValueType())) { 9504352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = LegalizeOp(ExpandSCALAR_TO_VECTOR(Node)); 9514352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 9524352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 9534352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 954ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // InVal 955ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 956ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner switch (TLI.getOperationAction(ISD::SCALAR_TO_VECTOR, 957ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Node->getValueType(0))) { 958ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner default: assert(0 && "This action is not supported yet!"); 959ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case TargetLowering::Legal: 960ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 9614d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner case TargetLowering::Custom: 9624d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 9634d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner if (Tmp3.Val) { 9644d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner Result = Tmp3; 9654d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner break; 9664d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner } 9674d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner // FALLTHROUGH 9684352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Expand: 9694352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = LegalizeOp(ExpandSCALAR_TO_VECTOR(Node)); 970ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 971ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 972ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 97387100e0b83b808757bf44dabecd1d1048255d1adChris Lattner case ISD::VECTOR_SHUFFLE: 97487100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the input vectors, 97587100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // but not the shuffle mask. 97687100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 97787100e0b83b808757bf44dabecd1d1048255d1adChris Lattner 97887100e0b83b808757bf44dabecd1d1048255d1adChris Lattner // Allow targets to custom lower the SHUFFLEs they support. 9794352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner switch (TLI.getOperationAction(ISD::VECTOR_SHUFFLE,Result.getValueType())) { 9804352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner default: assert(0 && "Unknown operation action!"); 9814352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Legal: 9824352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner assert(isShuffleLegal(Result.getValueType(), Node->getOperand(2)) && 9834352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner "vector shuffle should not be created if not legal!"); 9844352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 9854352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Custom: 98618dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Tmp3 = TLI.LowerOperation(Result, DAG); 98718dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng if (Tmp3.Val) { 98818dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Result = Tmp3; 98918dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng break; 99018dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 99118dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng // FALLTHROUGH 99218dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng case TargetLowering::Expand: { 99318dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng MVT::ValueType VT = Node->getValueType(0); 99418dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng MVT::ValueType EltVT = MVT::getVectorBaseType(VT); 99518dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng MVT::ValueType PtrVT = TLI.getPointerTy(); 99618dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng SDOperand Mask = Node->getOperand(2); 99718dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng unsigned NumElems = Mask.getNumOperands(); 998bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand,8> Ops; 99918dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng for (unsigned i = 0; i != NumElems; ++i) { 100018dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng SDOperand Arg = Mask.getOperand(i); 100118dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng if (Arg.getOpcode() == ISD::UNDEF) { 100218dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Ops.push_back(DAG.getNode(ISD::UNDEF, EltVT)); 100318dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } else { 100418dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng assert(isa<ConstantSDNode>(Arg) && "Invalid VECTOR_SHUFFLE mask!"); 100518dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng unsigned Idx = cast<ConstantSDNode>(Arg)->getValue(); 100618dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng if (Idx < NumElems) 100718dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EltVT, Tmp1, 100818dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng DAG.getConstant(Idx, PtrVT))); 100918dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng else 101018dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EltVT, Tmp2, 101118dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng DAG.getConstant(Idx - NumElems, PtrVT))); 101218dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 101318dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 1014bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Result = DAG.getNode(ISD::BUILD_VECTOR, VT, &Ops[0], Ops.size()); 10154352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 101618dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 10174352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Promote: { 10184352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Change base type to a different vector type. 10194352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner MVT::ValueType OVT = Node->getValueType(0); 10204352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 10214352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 10224352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Cast the two input vectors. 10234352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Tmp1 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp1); 10244352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Tmp2 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp2); 10254352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 10264352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Convert the shuffle mask to the right # elements. 10274352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Tmp3 = SDOperand(isShuffleLegal(OVT, Node->getOperand(2)), 0); 10284352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner assert(Tmp3.Val && "Shuffle not legal?"); 10294352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = DAG.getNode(ISD::VECTOR_SHUFFLE, NVT, Tmp1, Tmp2, Tmp3); 10304352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = DAG.getNode(ISD::BIT_CONVERT, OVT, Result); 10314352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 10324352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 103387100e0b83b808757bf44dabecd1d1048255d1adChris Lattner } 103487100e0b83b808757bf44dabecd1d1048255d1adChris Lattner break; 1035384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner 1036384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner case ISD::EXTRACT_VECTOR_ELT: 1037384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 1038384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 1039384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 1040e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner 1041e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner switch (TLI.getOperationAction(ISD::EXTRACT_VECTOR_ELT, 1042e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner Tmp1.getValueType())) { 1043e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner default: assert(0 && "This action is not supported yet!"); 1044e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner case TargetLowering::Legal: 1045e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner break; 1046e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner case TargetLowering::Custom: 1047e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 1048e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner if (Tmp3.Val) { 1049e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner Result = Tmp3; 1050e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner break; 1051e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner } 1052e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner // FALLTHROUGH 10534aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner case TargetLowering::Expand: 10544aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner Result = ExpandEXTRACT_VECTOR_ELT(Result); 1055e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner break; 1056e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner } 1057384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner break; 1058384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner 10591597221eace1c53ce5f84a7018397497d11a8393Chris Lattner case ISD::VEXTRACT_VECTOR_ELT: 10601597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Result = LegalizeOp(LowerVEXTRACT_VECTOR_ELT(Op)); 1061384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner break; 106287100e0b83b808757bf44dabecd1d1048255d1adChris Lattner 10636831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case ISD::CALLSEQ_START: { 10646831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDNode *CallEnd = FindCallEndFromCallStart(Node); 10656831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 10666831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Recursively Legalize all of the inputs of the call end that do not lead 10676831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // to this call start. This ensures that any libcalls that need be inserted 10686831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // are inserted *before* the CALLSEQ_START. 1069c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner {std::set<SDNode*> NodesLeadingTo; 10706831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = CallEnd->getNumOperands(); i != e; ++i) 1071c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner LegalizeAllNodesNotLeadingTo(CallEnd->getOperand(i).Val, Node, 1072c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner NodesLeadingTo); 1073c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner } 10746831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 10756831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Now that we legalized all of the inputs (which may have inserted 10766831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // libcalls) create the new CALLSEQ_START node. 10776831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 10786831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 10796831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Merge in the last call, to ensure that this call start after the last 10806831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // call ended. 1081c5d7d7c715f7b7a4eeea1ceaafefc3d1d6df2addChris Lattner if (LastCALLSEQ_END.getOpcode() != ISD::EntryToken) { 1082b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 1083b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp1 = LegalizeOp(Tmp1); 1084b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner } 10856831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 10866831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Do not try to legalize the target-specific arguments (#1+). 10876831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Tmp1 != Node->getOperand(0)) { 1088f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 10896831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Ops[0] = Tmp1; 1090f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 10916831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 10926831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 10936831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Remember that the CALLSEQ_START is legalized. 10944b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(Op.getValue(0), Result); 10954b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner if (Node->getNumValues() == 2) // If this has a flag result, remember it. 10964b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(Op.getValue(1), Result.getValue(1)); 10974b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner 10986831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Now that the callseq_start and all of the non-call nodes above this call 10996831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // sequence have been legalized, legalize the call itself. During this 11006831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // process, no libcalls can/will be inserted, guaranteeing that no calls 11016831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // can overlap. 11026831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "Inconsistent sequentialization of calls!"); 11036831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand InCallSEQ = LastCALLSEQ_END; 11046831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Note that we are selecting this call! 11056831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = SDOperand(CallEnd, 0); 11066831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = true; 11076831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 11086831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalize the call, starting from the CALLSEQ_END. 11096831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(LastCALLSEQ_END); 11106831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "CALLSEQ_END should have cleared this!"); 11116831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Result; 11126831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 111316cd04d26c53c6f81313cafb85f6c0e7a07cdff6Chris Lattner case ISD::CALLSEQ_END: 11146831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // If the CALLSEQ_START node hasn't been legalized first, legalize it. This 11156831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // will cause this node to be legalized as well as handling libcalls right. 11166831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (LastCALLSEQ_END.Val != Node) { 11176831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(SDOperand(FindCallStartFromCallEnd(Node), 0)); 11186831a815999dde4cf801e2076e66b4943964daf2Chris Lattner std::map<SDOperand, SDOperand>::iterator I = LegalizedNodes.find(Op); 11196831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(I != LegalizedNodes.end() && 11206831a815999dde4cf801e2076e66b4943964daf2Chris Lattner "Legalizing the call start should have legalized this node!"); 11216831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return I->second; 11226831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 11236831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 11246831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Otherwise, the call start has been legalized and everything is going 11256831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // according to plan. Just legalize ourselves normally here. 11263e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 112770814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner // Do not try to legalize the target-specific arguments (#1+), except for 112870814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner // an optional flag input. 112970814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Node->getOperand(Node->getNumOperands()-1).getValueType() != MVT::Flag){ 113070814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Tmp1 != Node->getOperand(0)) { 1131f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 113270814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops[0] = Tmp1; 1133f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 113470814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } 113570814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } else { 113670814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Tmp2 = LegalizeOp(Node->getOperand(Node->getNumOperands()-1)); 113770814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Tmp1 != Node->getOperand(0) || 113870814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Tmp2 != Node->getOperand(Node->getNumOperands()-1)) { 1139f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 114070814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops[0] = Tmp1; 114170814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops.back() = Tmp2; 1142f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 114370814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } 11446a5428934ba6159c1acc541944332e51a6cfa59aChris Lattner } 11454b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner assert(IsLegalizingCall && "Call sequence imbalance between start/end?"); 11466831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // This finishes up call legalization. 11476831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = false; 11484b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner 11494b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner // If the CALLSEQ_END node has a flag, remember that we legalized it. 11504b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 11514b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner if (Node->getNumValues() == 2) 11524b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 11534b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner return Result.getValue(Op.ResNo); 1154a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng case ISD::DYNAMIC_STACKALLOC: { 1155fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1156fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the size. 1157fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the alignment. 1158c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1159fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner 1160c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = Result.getValue(0); 11615f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner Tmp2 = Result.getValue(1); 1162a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), 1163a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng Node->getValueType(0))) { 1164a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng default: assert(0 && "This action is not supported yet!"); 1165903d278a9b7398d8905c90832e587e0556c52789Chris Lattner case TargetLowering::Expand: { 1166903d278a9b7398d8905c90832e587e0556c52789Chris Lattner unsigned SPReg = TLI.getStackPointerRegisterToSaveRestore(); 1167903d278a9b7398d8905c90832e587e0556c52789Chris Lattner assert(SPReg && "Target cannot require DYNAMIC_STACKALLOC expansion and" 1168903d278a9b7398d8905c90832e587e0556c52789Chris Lattner " not tell us which reg is the stack pointer!"); 1169903d278a9b7398d8905c90832e587e0556c52789Chris Lattner SDOperand Chain = Tmp1.getOperand(0); 1170903d278a9b7398d8905c90832e587e0556c52789Chris Lattner SDOperand Size = Tmp2.getOperand(1); 1171903d278a9b7398d8905c90832e587e0556c52789Chris Lattner SDOperand SP = DAG.getCopyFromReg(Chain, SPReg, Node->getValueType(0)); 1172903d278a9b7398d8905c90832e587e0556c52789Chris Lattner Tmp1 = DAG.getNode(ISD::SUB, Node->getValueType(0), SP, Size); // Value 1173903d278a9b7398d8905c90832e587e0556c52789Chris Lattner Tmp2 = DAG.getCopyToReg(SP.getValue(1), SPReg, Tmp1); // Output chain 1174c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp1); 1175c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp2); 1176903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1177903d278a9b7398d8905c90832e587e0556c52789Chris Lattner } 1178903d278a9b7398d8905c90832e587e0556c52789Chris Lattner case TargetLowering::Custom: 11795f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner Tmp3 = TLI.LowerOperation(Tmp1, DAG); 11805f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner if (Tmp3.Val) { 1181c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp3); 1182c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp3.getValue(1)); 1183a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 1184903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1185a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng case TargetLowering::Legal: 1186903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1187a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 1188903d278a9b7398d8905c90832e587e0556c52789Chris Lattner // Since this op produce two values, make sure to remember that we 1189903d278a9b7398d8905c90832e587e0556c52789Chris Lattner // legalized both of them. 1190c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 1191c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 1192903d278a9b7398d8905c90832e587e0556c52789Chris Lattner return Op.ResNo ? Tmp2 : Tmp1; 1193a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 119425a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner case ISD::INLINEASM: { 1195f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 119625a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner bool Changed = false; 119725a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner // Legalize all of the operands of the inline asm, in case they are nodes 119825a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner // that need to be expanded or something. Note we skip the asm string and 119925a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner // all of the TargetConstant flags. 120025a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner SDOperand Op = LegalizeOp(Ops[0]); 120125a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Changed = Op != Ops[0]; 120225a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Ops[0] = Op; 120325a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner 120425a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner bool HasInFlag = Ops.back().getValueType() == MVT::Flag; 120525a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner for (unsigned i = 2, e = Ops.size()-HasInFlag; i < e; ) { 120625a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner unsigned NumVals = cast<ConstantSDNode>(Ops[i])->getValue() >> 3; 120725a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner for (++i; NumVals; ++i, --NumVals) { 120825a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner SDOperand Op = LegalizeOp(Ops[i]); 120925a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner if (Op != Ops[i]) { 121025a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Changed = true; 121125a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Ops[i] = Op; 121225a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 121325a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 121425a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 121525a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner 121625a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner if (HasInFlag) { 121725a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Op = LegalizeOp(Ops.back()); 121825a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Changed |= Op != Ops.back(); 121925a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Ops.back() = Op; 122025a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 1221ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner 122225a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner if (Changed) 1223f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 1224ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner 1225ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner // INLINE asm returns a chain and flag, make sure to add both to the map. 1226c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 1227ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 1228ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner return Result.getValue(Op.ResNo); 122925a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 1230c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner case ISD::BR: 1231c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 12326831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a branch. 12336831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 12346831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 12356831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 12366831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 1237c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 1238c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner break; 123937efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::BRIND: 124037efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 124137efe6764568a3829fee26aba532283131d1a104Nate Begeman // Ensure that libcalls are emitted before a branch. 124237efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 124337efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp1 = LegalizeOp(Tmp1); 124437efe6764568a3829fee26aba532283131d1a104Nate Begeman LastCALLSEQ_END = DAG.getEntryNode(); 124537efe6764568a3829fee26aba532283131d1a104Nate Begeman 124637efe6764568a3829fee26aba532283131d1a104Nate Begeman switch (getTypeAction(Node->getOperand(1).getValueType())) { 124737efe6764568a3829fee26aba532283131d1a104Nate Begeman default: assert(0 && "Indirect target must be legal type (pointer)!"); 124837efe6764568a3829fee26aba532283131d1a104Nate Begeman case Legal: 124937efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the condition. 125037efe6764568a3829fee26aba532283131d1a104Nate Begeman break; 125137efe6764568a3829fee26aba532283131d1a104Nate Begeman } 125237efe6764568a3829fee26aba532283131d1a104Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 125337efe6764568a3829fee26aba532283131d1a104Nate Begeman break; 1254c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner case ISD::BRCOND: 1255c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 12566831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a return. 12576831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 12586831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 12596831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 12606831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 126147e9223e06390897c3834f8c527001df392570ffChris Lattner switch (getTypeAction(Node->getOperand(1).getValueType())) { 126247e9223e06390897c3834f8c527001df392570ffChris Lattner case Expand: assert(0 && "It's impossible to expand bools"); 126347e9223e06390897c3834f8c527001df392570ffChris Lattner case Legal: 126447e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the condition. 126547e9223e06390897c3834f8c527001df392570ffChris Lattner break; 126647e9223e06390897c3834f8c527001df392570ffChris Lattner case Promote: 126747e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the condition. 126847e9223e06390897c3834f8c527001df392570ffChris Lattner break; 126947e9223e06390897c3834f8c527001df392570ffChris Lattner } 1270456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1271456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Basic block destination (Op#2) is always legal. 1272c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 12737cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman 12747cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman switch (TLI.getOperationAction(ISD::BRCOND, MVT::Other)) { 12757cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman default: assert(0 && "This action is not supported yet!"); 1276456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1277456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1278456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 1279456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 1280456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 12817cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman case TargetLowering::Expand: 12827cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // Expand brcond's setcc into its constituent parts and create a BR_CC 12837cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // Node. 12847cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman if (Tmp2.getOpcode() == ISD::SETCC) { 12857cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Result = DAG.getNode(ISD::BR_CC, MVT::Other, Tmp1, Tmp2.getOperand(2), 12867cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Tmp2.getOperand(0), Tmp2.getOperand(1), 12877cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Node->getOperand(2)); 12887cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } else { 1289550b1e59c4eb5db020766012b1406fc56833251dChris Lattner // Make sure the condition is either zero or one. It may have been 1290550b1e59c4eb5db020766012b1406fc56833251dChris Lattner // promoted from something else. 129119c5c4cca9edd0e1e2961879d3da164325af6d63Chris Lattner unsigned NumBits = MVT::getSizeInBits(Tmp2.getValueType()); 129219c5c4cca9edd0e1e2961879d3da164325af6d63Chris Lattner if (!TLI.MaskedValueIsZero(Tmp2, (~0ULL >> (64-NumBits))^1)) 129319c5c4cca9edd0e1e2961879d3da164325af6d63Chris Lattner Tmp2 = DAG.getZeroExtendInReg(Tmp2, MVT::i1); 1294550b1e59c4eb5db020766012b1406fc56833251dChris Lattner 12957cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Result = DAG.getNode(ISD::BR_CC, MVT::Other, Tmp1, 12967cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman DAG.getCondCode(ISD::SETNE), Tmp2, 12977cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman DAG.getConstant(0, Tmp2.getValueType()), 12987cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Node->getOperand(2)); 12997cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 13007cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman break; 13017cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 13027cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman break; 13037cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman case ISD::BR_CC: 13047cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 13056831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a branch. 13066831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 13076831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 13086831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 13096831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 1310750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(2); // LHS 1311750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = Node->getOperand(3); // RHS 1312750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp4 = Node->getOperand(1); // CC 1313181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner 1314750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp2, Tmp3, Tmp4); 1315750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 1316750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we didn't get both a LHS and RHS back from LegalizeSetCCOperands, 1317750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the LHS is a legal SETCC itself. In this case, we need to compare 1318750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the result against zero to select between true and false values. 1319750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp3.Val == 0) { 1320750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = DAG.getConstant(0, Tmp2.getValueType()); 1321750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp4 = DAG.getCondCode(ISD::SETNE); 1322750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 1323750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 1324750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp4, Tmp2, Tmp3, 1325750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Node->getOperand(4)); 1326456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1327181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner switch (TLI.getOperationAction(ISD::BR_CC, Tmp3.getValueType())) { 1328181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner default: assert(0 && "Unexpected action for BR_CC!"); 1329456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1330456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1331456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp4 = TLI.LowerOperation(Result, DAG); 1332456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp4.Val) Result = Tmp4; 1333181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner break; 13347cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 1335c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner break; 1336f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng case ISD::LOAD: { 1337466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LoadSDNode *LD = cast<LoadSDNode>(Node); 1338466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = LegalizeOp(LD->getChain()); // Legalize the chain. 1339466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = LegalizeOp(LD->getBasePtr()); // Legalize the base pointer. 13402d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth 1341466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ISD::LoadExtType ExtType = LD->getExtensionType(); 1342466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::NON_EXTLOAD) { 1343466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng MVT::ValueType VT = Node->getValueType(0); 1344466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, LD->getOffset()); 1345466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = Result.getValue(0); 1346466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp4 = Result.getValue(1); 1347456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1348466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 1349466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng default: assert(0 && "This action is not supported yet!"); 1350466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Legal: break; 1351466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Custom: 1352466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = TLI.LowerOperation(Tmp3, DAG); 1353466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (Tmp1.Val) { 1354466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = LegalizeOp(Tmp1); 1355466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp4 = LegalizeOp(Tmp1.getValue(1)); 1356466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1357466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1358466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Promote: { 1359466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Only promote a load of vector type to another. 1360466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng assert(MVT::isVector(VT) && "Cannot promote this load!"); 1361466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Change base type to a different vector type. 1362466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), VT); 1363466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 1364466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = DAG.getLoad(NVT, Tmp1, Tmp2, LD->getSrcValue(), 1365466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LD->getSrcValueOffset()); 1366466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = LegalizeOp(DAG.getNode(ISD::BIT_CONVERT, VT, Tmp1)); 136741f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng Tmp4 = LegalizeOp(Tmp1.getValue(1)); 1368466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1369f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 1370466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1371466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Since loads produce two values, make sure to remember that we 1372466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // legalized both of them. 1373466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 0), Tmp3); 1374466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), Tmp4); 1375466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return Op.ResNo ? Tmp4 : Tmp3; 1376466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else { 1377466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng MVT::ValueType SrcVT = LD->getLoadVT(); 1378466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng switch (TLI.getLoadXAction(ExtType, SrcVT)) { 1379466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng default: assert(0 && "This action is not supported yet!"); 1380466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Promote: 1381466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng assert(SrcVT == MVT::i1 && 1382466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng "Can only promote extending LOAD from i1 -> i8!"); 1383466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getExtLoad(ExtType, Node->getValueType(0), Tmp1, Tmp2, 1384466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LD->getSrcValue(), LD->getSrcValueOffset(), 1385466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng MVT::i8); 1386c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = Result.getValue(0); 1387c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Result.getValue(1); 1388c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner break; 1389466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Custom: 1390466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng isCustom = true; 1391466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // FALLTHROUGH 1392466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Legal: 1393466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, LD->getOffset()); 1394466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = Result.getValue(0); 1395466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = Result.getValue(1); 1396456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1397466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (isCustom) { 1398466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = TLI.LowerOperation(Result, DAG); 1399466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (Tmp3.Val) { 1400466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = LegalizeOp(Tmp3); 1401466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = LegalizeOp(Tmp3.getValue(1)); 1402466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1403456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 1404466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1405466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Expand: 1406466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // f64 = EXTLOAD f32 should expand to LOAD, FP_EXTEND 1407466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (SrcVT == MVT::f32 && Node->getValueType(0) == MVT::f64) { 1408466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Load = DAG.getLoad(SrcVT, Tmp1, Tmp2, LD->getSrcValue(), 1409466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LD->getSrcValueOffset()); 1410466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getNode(ISD::FP_EXTEND, Node->getValueType(0), Load); 1411466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = LegalizeOp(Result); // Relegalize new nodes. 1412466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = LegalizeOp(Load.getValue(1)); 1413466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1414466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1415466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng assert(ExtType != ISD::EXTLOAD && "EXTLOAD should always be supported!"); 1416466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Turn the unsupported load into an EXTLOAD followed by an explicit 1417466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // zero/sign extend inreg. 1418466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getExtLoad(ISD::EXTLOAD, Node->getValueType(0), 1419466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1, Tmp2, LD->getSrcValue(), 1420466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LD->getSrcValueOffset(), SrcVT); 1421466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand ValRes; 1422466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::SEXTLOAD) 1423466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ValRes = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 1424466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result, DAG.getValueType(SrcVT)); 1425466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng else 1426466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ValRes = DAG.getZeroExtendInReg(Result, SrcVT); 1427466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = LegalizeOp(ValRes); // Relegalize new nodes. 1428466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = LegalizeOp(Result.getValue(1)); // Relegalize new nodes. 1429c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner break; 14309d416f713e8b9e4f0c0c2b3f6f57ce2dd8993209Andrew Lenharth } 1431466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Since loads produce two values, make sure to remember that we legalized 1432466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // both of them. 1433466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 1434466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 1435466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return Op.ResNo ? Tmp2 : Tmp1; 143601ff7216dd7829d4094754086baf28aa2d7149acChris Lattner } 143701ff7216dd7829d4094754086baf28aa2d7149acChris Lattner } 14385dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case ISD::EXTRACT_ELEMENT: { 14395dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman MVT::ValueType OpTy = Node->getOperand(0).getValueType(); 14405dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman switch (getTypeAction(OpTy)) { 1441c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner default: assert(0 && "EXTRACT_ELEMENT action for type unimplemented!"); 14425dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case Legal: 14435dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman if (cast<ConstantSDNode>(Node->getOperand(1))->getValue()) { 14445dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // 1 -> Hi 14455dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::SRL, OpTy, Node->getOperand(0), 14465dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman DAG.getConstant(MVT::getSizeInBits(OpTy)/2, 14475dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman TLI.getShiftAmountTy())); 14485dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), Result); 14495dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } else { 14505dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // 0 -> Lo 14515dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), 14525dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Node->getOperand(0)); 14535dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 14545dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman break; 14555dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case Expand: 14565dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // Get both the low and high parts. 14575dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 14585dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman if (cast<ConstantSDNode>(Node->getOperand(1))->getValue()) 14595dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = Tmp2; // 1 -> Hi 14605dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman else 14615dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = Tmp1; // 0 -> Lo 14625dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman break; 14635dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 14643e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 14655dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 14663e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 14673e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::CopyToReg: 14683e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1469edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 1470c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner assert(isTypeLegal(Node->getOperand(2).getValueType()) && 1471d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner "Register type must be legal!"); 14727310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // Legalize the incoming value (must be a legal type). 1473d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(2)); 1474f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner if (Node->getNumValues() == 1) { 1475c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1), Tmp2); 14767310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } else { 1477f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner assert(Node->getNumValues() == 2 && "Unknown CopyToReg"); 1478c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Node->getNumOperands() == 4) { 1479f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(3)); 1480c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1), Tmp2, 1481c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3); 1482c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else { 1483c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1),Tmp2); 14847310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 14857310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner 14867310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // Since this produces two values, make sure to remember that we legalized 14877310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // both of them. 1488c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 14897310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 1490c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Result; 14917310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 14923e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 14933e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 14943e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::RET: 14953e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 14966831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 14976831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a return. 14986831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 14996831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 15006831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 1501f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner 15023e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getNumOperands()) { 15038e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng case 3: // ret val 150498f8aeb45fc1e54437cbb8f2a7445c609deab832Evan Cheng Tmp2 = Node->getOperand(1); 15058e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Tmp3 = Node->getOperand(2); // Signness 1506f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner switch (getTypeAction(Tmp2.getValueType())) { 15073e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 15088e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, LegalizeOp(Tmp2), Tmp3); 15093e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 1510f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner case Expand: 1511f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner if (Tmp2.getValueType() != MVT::Vector) { 1512f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SDOperand Lo, Hi; 1513f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner ExpandOp(Tmp2, Lo, Hi); 15148e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Tmp3, Hi, Tmp3); 1515f921a518912df706a8edf1f867f52e8afc6e2b55Chris Lattner Result = LegalizeOp(Result); 1516f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } else { 1517f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SDNode *InVal = Tmp2.Val; 1518f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner unsigned NumElems = 1519f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner cast<ConstantSDNode>(*(InVal->op_end()-2))->getValue(); 1520f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner MVT::ValueType EVT = cast<VTSDNode>(*(InVal->op_end()-1))->getVT(); 1521f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner 1522f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // Figure out if there is a Packed type corresponding to this Vector 1523f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // type. If so, convert to the packed type. 1524f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 1525f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner if (TVT != MVT::Other && TLI.isTypeLegal(TVT)) { 1526f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // Turn this into a return of the packed type. 1527f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner Tmp2 = PackVectorOp(Tmp2, TVT); 15288e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1529f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } else if (NumElems == 1) { 1530f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // Turn this into a return of the scalar type. 1531f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner Tmp2 = PackVectorOp(Tmp2, EVT); 15328e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1533b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner 1534b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // FIXME: Returns of gcc generic vectors smaller than a legal type 1535b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // should be returned in integer registers! 1536b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner 1537f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // The scalarized value type may not be legal, e.g. it might require 1538f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // promotion or expansion. Relegalize the return. 1539f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner Result = LegalizeOp(Result); 1540f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } else { 1541b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // FIXME: Returns of gcc generic vectors larger than a legal vector 1542b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // type should be returned by reference! 1543f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SDOperand Lo, Hi; 1544f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SplitVectorOp(Tmp2, Lo, Hi); 15458e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Tmp3, Hi, Tmp3); 1546f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner Result = LegalizeOp(Result); 1547f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } 1548f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } 1549edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman break; 15503e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Promote: 15518b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 15528e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1553c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); 15548b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 15553e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 15563e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 15573e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case 1: // ret void 1558c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 15593e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 15603e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner default: { // ret <values> 1561f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> NewValues; 15623e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner NewValues.push_back(Tmp1); 15638e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng for (unsigned i = 1, e = Node->getNumOperands(); i < e; i += 2) 15643e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (getTypeAction(Node->getOperand(i).getValueType())) { 15653e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 15664e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner NewValues.push_back(LegalizeOp(Node->getOperand(i))); 15678e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng NewValues.push_back(Node->getOperand(i+1)); 15683e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 15693e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Expand: { 15703e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand Lo, Hi; 1571b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner assert(Node->getOperand(i).getValueType() != MVT::Vector && 1572b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner "FIXME: TODO: implement returning non-legal vector types!"); 15733e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(i), Lo, Hi); 15743e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner NewValues.push_back(Lo); 15758e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng NewValues.push_back(Node->getOperand(i+1)); 15763e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner NewValues.push_back(Hi); 15778e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng NewValues.push_back(Node->getOperand(i+1)); 1578edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman break; 15793e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 15803e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Promote: 15818b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(0 && "Can't promote multiple return value yet!"); 15823e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1583c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 1584c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (NewValues.size() == Node->getNumOperands()) 1585f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &NewValues[0],NewValues.size()); 1586c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner else 1587f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.getNode(ISD::RET, MVT::Other, 1588f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner &NewValues[0], NewValues.size()); 15893e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 15903e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 15913e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 159217c428e23dbeac1f985d725905ce6be1c725491fEvan Cheng 15936862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner if (Result.getOpcode() == ISD::RET) { 15946862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner switch (TLI.getOperationAction(Result.getOpcode(), MVT::Other)) { 15956862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner default: assert(0 && "This action is not supported yet!"); 15966862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner case TargetLowering::Legal: break; 15976862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner case TargetLowering::Custom: 15986862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 15996862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner if (Tmp1.Val) Result = Tmp1; 16006862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner break; 16016862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner } 160217c428e23dbeac1f985d725905ce6be1c725491fEvan Cheng } 16033e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 1604f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng case ISD::STORE: { 16053e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 16063e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp2 = LegalizeOp(Node->getOperand(2)); // Legalize the pointer. 16073e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 16085d2c6c784bdc3d572a553ed7aa48dcf27a45b1a3Chris Lattner // Turn 'store float 1.0, Ptr' -> 'store int 0x12345678, Ptr' 1609456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FIXME: We shouldn't do this for TargetConstantFP's. 161006ac6ab938cf54596202de851da4b20aa61fe64eChris Lattner // FIXME: move this to the DAG Combiner! 161103c8546ec57523970874917854a2fb77b1ff598eChris Lattner if (ConstantFPSDNode *CFP =dyn_cast<ConstantFPSDNode>(Node->getOperand(1))){ 16125d2c6c784bdc3d572a553ed7aa48dcf27a45b1a3Chris Lattner if (CFP->getValueType(0) == MVT::f32) { 1613c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = DAG.getConstant(FloatToBits(CFP->getValue()), MVT::i32); 16145d2c6c784bdc3d572a553ed7aa48dcf27a45b1a3Chris Lattner } else { 16155d2c6c784bdc3d572a553ed7aa48dcf27a45b1a3Chris Lattner assert(CFP->getValueType(0) == MVT::f64 && "Unknown FP type!"); 1616c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = DAG.getConstant(DoubleToBits(CFP->getValue()), MVT::i64); 16175d2c6c784bdc3d572a553ed7aa48dcf27a45b1a3Chris Lattner } 1618786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng Result = DAG.getStore(Tmp1, Tmp3, Tmp2, Node->getOperand(3)); 16196a5428934ba6159c1acc541944332e51a6cfa59aChris Lattner break; 16205d2c6c784bdc3d572a553ed7aa48dcf27a45b1a3Chris Lattner } 16215d2c6c784bdc3d572a553ed7aa48dcf27a45b1a3Chris Lattner 16223e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (getTypeAction(Node->getOperand(1).getValueType())) { 16233e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: { 1624c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = LegalizeOp(Node->getOperand(1)); 1625c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp3, Tmp2, 1626c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Node->getOperand(3)); 1627f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng 1628c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner MVT::ValueType VT = Tmp3.getValueType(); 1629456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch (TLI.getOperationAction(ISD::STORE, VT)) { 1630456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner default: assert(0 && "This action is not supported yet!"); 1631456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1632456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1633456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 1634456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 1635456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 16362efce0a589e2a688a1a06b5dc2ed0db32ae79924Chris Lattner case TargetLowering::Promote: 16372efce0a589e2a688a1a06b5dc2ed0db32ae79924Chris Lattner assert(MVT::isVector(VT) && "Unknown legal promote case!"); 16382efce0a589e2a688a1a06b5dc2ed0db32ae79924Chris Lattner Tmp3 = DAG.getNode(ISD::BIT_CONVERT, 16392efce0a589e2a688a1a06b5dc2ed0db32ae79924Chris Lattner TLI.getTypeToPromoteTo(ISD::STORE, VT), Tmp3); 16402efce0a589e2a688a1a06b5dc2ed0db32ae79924Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp3, Tmp2, 16412efce0a589e2a688a1a06b5dc2ed0db32ae79924Chris Lattner Node->getOperand(3)); 16422efce0a589e2a688a1a06b5dc2ed0db32ae79924Chris Lattner break; 1643f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 16443e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 16453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 16463e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Promote: 164703c8546ec57523970874917854a2fb77b1ff598eChris Lattner // Truncate the value and store the result. 164803c8546ec57523970874917854a2fb77b1ff598eChris Lattner Tmp3 = PromoteOp(Node->getOperand(1)); 164903c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = DAG.getNode(ISD::TRUNCSTORE, MVT::Other, Tmp1, Tmp3, Tmp2, 16502d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth Node->getOperand(3), 16519fadb4c1c0a6d223aa468f9f72f8c2562dc66839Chris Lattner DAG.getValueType(Node->getOperand(1).getValueType())); 165203c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 165303c8546ec57523970874917854a2fb77b1ff598eChris Lattner 16543e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Expand: 1655c7029805ef35ce9805931067b841e6af11db382eChris Lattner unsigned IncrementSize = 0; 16563e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand Lo, Hi; 1657c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1658ab48be377298bd509427a29e174cf4e305138819Nate Begeman // If this is a vector type, then we have to calculate the increment as 1659ab48be377298bd509427a29e174cf4e305138819Nate Begeman // the product of the element size in bytes, and the number of elements 1660ab48be377298bd509427a29e174cf4e305138819Nate Begeman // in the high half of the vector. 1661c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (Node->getOperand(1).getValueType() == MVT::Vector) { 1662c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDNode *InVal = Node->getOperand(1).Val; 1663c7029805ef35ce9805931067b841e6af11db382eChris Lattner unsigned NumElems = 1664c7029805ef35ce9805931067b841e6af11db382eChris Lattner cast<ConstantSDNode>(*(InVal->op_end()-2))->getValue(); 1665c7029805ef35ce9805931067b841e6af11db382eChris Lattner MVT::ValueType EVT = cast<VTSDNode>(*(InVal->op_end()-1))->getVT(); 1666c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1667c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Figure out if there is a Packed type corresponding to this Vector 1668c7029805ef35ce9805931067b841e6af11db382eChris Lattner // type. If so, convert to the packed type. 1669c7029805ef35ce9805931067b841e6af11db382eChris Lattner MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 1670c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (TVT != MVT::Other && TLI.isTypeLegal(TVT)) { 1671c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Turn this into a normal store of the packed type. 1672c7029805ef35ce9805931067b841e6af11db382eChris Lattner Tmp3 = PackVectorOp(Node->getOperand(1), TVT); 1673c7029805ef35ce9805931067b841e6af11db382eChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp3, Tmp2, 1674c7029805ef35ce9805931067b841e6af11db382eChris Lattner Node->getOperand(3)); 16752efce0a589e2a688a1a06b5dc2ed0db32ae79924Chris Lattner Result = LegalizeOp(Result); 1676c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 1677c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else if (NumElems == 1) { 1678c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Turn this into a normal store of the scalar type. 1679c7029805ef35ce9805931067b841e6af11db382eChris Lattner Tmp3 = PackVectorOp(Node->getOperand(1), EVT); 1680c7029805ef35ce9805931067b841e6af11db382eChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp3, Tmp2, 1681c7029805ef35ce9805931067b841e6af11db382eChris Lattner Node->getOperand(3)); 16822ae2e98d4f83a02b5e576ec7a0da74d8aebb38cfChris Lattner // The scalarized value type may not be legal, e.g. it might require 16832ae2e98d4f83a02b5e576ec7a0da74d8aebb38cfChris Lattner // promotion or expansion. Relegalize the scalar store. 16842ae2e98d4f83a02b5e576ec7a0da74d8aebb38cfChris Lattner Result = LegalizeOp(Result); 1685c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 1686c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else { 1687c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitVectorOp(Node->getOperand(1), Lo, Hi); 1688c7029805ef35ce9805931067b841e6af11db382eChris Lattner IncrementSize = NumElems/2 * MVT::getSizeInBits(EVT)/8; 1689c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 1690ab48be377298bd509427a29e174cf4e305138819Nate Begeman } else { 1691c7029805ef35ce9805931067b841e6af11db382eChris Lattner ExpandOp(Node->getOperand(1), Lo, Hi); 1692ab48be377298bd509427a29e174cf4e305138819Nate Begeman IncrementSize = MVT::getSizeInBits(Hi.getValueType())/8; 1693c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1694d9731af75b38f30c02f19d6e81333b9c2599ad5fChris Lattner if (!TLI.isLittleEndian()) 1695d9731af75b38f30c02f19d6e81333b9c2599ad5fChris Lattner std::swap(Lo, Hi); 1696d9731af75b38f30c02f19d6e81333b9c2599ad5fChris Lattner } 1697c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1698786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng Lo = DAG.getStore(Tmp1, Lo, Tmp2, Node->getOperand(3)); 16993e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 17003e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner getIntPtrConstant(IncrementSize)); 17013e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(isTypeLegal(Tmp2.getValueType()) && 17023e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner "Pointers must be legal!"); 1703456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FIXME: This sets the srcvalue of both halves to be the same, which is 1704456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // wrong. 1705786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng Hi = DAG.getStore(Tmp1, Hi, Tmp2, Node->getOperand(3)); 1706ec39a45bdb1eca0cfe77be6a05cc43e16f2338ebChris Lattner Result = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo, Hi); 1707ec39a45bdb1eca0cfe77be6a05cc43e16f2338ebChris Lattner break; 17083e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 17093e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 1710f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 171195762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth case ISD::PCMARKER: 171295762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1713c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 171495762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth break; 1715140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case ISD::STACKSAVE: 1716140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1717c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 1718c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = Result.getValue(0); 1719c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Result.getValue(1); 1720456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1721140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner switch (TLI.getOperationAction(ISD::STACKSAVE, MVT::Other)) { 1722140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner default: assert(0 && "This action is not supported yet!"); 1723456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1724456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1725c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 1726c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Tmp3.Val) { 1727c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp3); 1728c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp3.getValue(1)); 1729140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 1730456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 1731140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case TargetLowering::Expand: 17324f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // Expand to CopyFromReg if the target set 17334f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // StackPointerRegisterToSaveRestore. 17344f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner if (unsigned SP = TLI.getStackPointerRegisterToSaveRestore()) { 1735c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getCopyFromReg(Result.getOperand(0), SP, 17364f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Node->getValueType(0)); 1737c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Tmp1.getValue(1); 17384f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } else { 1739c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getNode(ISD::UNDEF, Node->getValueType(0)); 1740c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Node->getOperand(0); 17414f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } 1742456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 1743140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 1744456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1745456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Since stacksave produce two values, make sure to remember that we 1746456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // legalized both of them. 1747c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 1748c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 1749c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Op.ResNo ? Tmp2 : Tmp1; 1750456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1751140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case ISD::STACKRESTORE: 1752140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1753140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 1754c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 1755140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner 1756140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner switch (TLI.getOperationAction(ISD::STACKRESTORE, MVT::Other)) { 1757140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner default: assert(0 && "This action is not supported yet!"); 1758456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1759456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1760456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 1761456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 1762140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 1763140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case TargetLowering::Expand: 17644f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // Expand to CopyToReg if the target set 17654f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // StackPointerRegisterToSaveRestore. 17664f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner if (unsigned SP = TLI.getStackPointerRegisterToSaveRestore()) { 17674f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Result = DAG.getCopyToReg(Tmp1, SP, Tmp2); 17684f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } else { 17694f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Result = Tmp1; 17704f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } 1771140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 1772140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 1773140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 1774140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner 177551b8d54922350b7e1c2cd5a5183ef2c5f5d1b1d5Andrew Lenharth case ISD::READCYCLECOUNTER: 177651b8d54922350b7e1c2cd5a5183ef2c5f5d1b1d5Andrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain 1777c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 177849c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth 177949c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth // Since rdcc produce two values, make sure to remember that we legalized 178049c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth // both of them. 1781c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 178249c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 1783c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Result; 1784f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 1785f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng case ISD::TRUNCSTORE: { 17860f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 17870f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the pointer. 17880f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner 1789456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner assert(isTypeLegal(Node->getOperand(1).getValueType()) && 1790456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner "Cannot handle illegal TRUNCSTORE yet!"); 1791456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 1792456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1793456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // The only promote case we handle is TRUNCSTORE:i1 X into 1794456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // -> TRUNCSTORE:i8 (and X, 1) 1795456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (cast<VTSDNode>(Node->getOperand(4))->getVT() == MVT::i1 && 1796456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner TLI.getOperationAction(ISD::TRUNCSTORE, MVT::i1) == 1797456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner TargetLowering::Promote) { 1798456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Promote the bool to a mask then store. 1799456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = DAG.getNode(ISD::AND, Tmp2.getValueType(), Tmp2, 1800456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner DAG.getConstant(1, Tmp2.getValueType())); 1801456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::TRUNCSTORE, MVT::Other, Tmp1, Tmp2, Tmp3, 1802456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Node->getOperand(3), DAG.getValueType(MVT::i8)); 1803456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1804456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } else if (Tmp1 != Node->getOperand(0) || Tmp2 != Node->getOperand(1) || 1805456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp3 != Node->getOperand(2)) { 1806c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, 1807c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Node->getOperand(3), Node->getOperand(4)); 1808456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 1809456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1810456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner MVT::ValueType StVT = cast<VTSDNode>(Result.Val->getOperand(4))->getVT(); 1811456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch (TLI.getOperationAction(Result.Val->getOpcode(), StVT)) { 1812456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner default: assert(0 && "This action is not supported yet!"); 1813456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1814456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1815456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 1816456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 18170f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner break; 18180f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner } 18190f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner break; 1820f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 18212ee743ff9be43c350075a2fa15d11a79bff36775Chris Lattner case ISD::SELECT: 182247e9223e06390897c3834f8c527001df392570ffChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 182347e9223e06390897c3834f8c527001df392570ffChris Lattner case Expand: assert(0 && "It's impossible to expand bools"); 182447e9223e06390897c3834f8c527001df392570ffChris Lattner case Legal: 182547e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the condition. 182647e9223e06390897c3834f8c527001df392570ffChris Lattner break; 182747e9223e06390897c3834f8c527001df392570ffChris Lattner case Promote: 182847e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); // Promote the condition. 182947e9223e06390897c3834f8c527001df392570ffChris Lattner break; 183047e9223e06390897c3834f8c527001df392570ffChris Lattner } 18313e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // TrueVal 18322ee743ff9be43c350075a2fa15d11a79bff36775Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // FalseVal 183355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner 1834c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1835456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1836b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman switch (TLI.getOperationAction(ISD::SELECT, Tmp2.getValueType())) { 183755ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action is not supported yet!"); 1838456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1839456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: { 1840456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 1841456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 1842456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 1843456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 18449373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case TargetLowering::Expand: 18459373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman if (Tmp1.getOpcode() == ISD::SETCC) { 18469373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getSelectCC(Tmp1.getOperand(0), Tmp1.getOperand(1), 18479373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2, Tmp3, 18489373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman cast<CondCodeSDNode>(Tmp1.getOperand(2))->get()); 18499373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } else { 1850550b1e59c4eb5db020766012b1406fc56833251dChris Lattner // Make sure the condition is either zero or one. It may have been 1851550b1e59c4eb5db020766012b1406fc56833251dChris Lattner // promoted from something else. 18520e753d617be1ff6a9ac0f894da9d2544e2489850Chris Lattner unsigned NumBits = MVT::getSizeInBits(Tmp1.getValueType()); 18530e753d617be1ff6a9ac0f894da9d2544e2489850Chris Lattner if (!TLI.MaskedValueIsZero(Tmp1, (~0ULL >> (64-NumBits))^1)) 18540e753d617be1ff6a9ac0f894da9d2544e2489850Chris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, MVT::i1); 18559373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getSelectCC(Tmp1, 18569373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman DAG.getConstant(0, Tmp1.getValueType()), 18579373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2, Tmp3, ISD::SETNE); 18589373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 185955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 186055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Promote: { 186155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner MVT::ValueType NVT = 186255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner TLI.getTypeToPromoteTo(ISD::SELECT, Tmp2.getValueType()); 186355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner unsigned ExtOp, TruncOp; 186441f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng if (MVT::isVector(Tmp2.getValueType())) { 186541f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng ExtOp = ISD::BIT_CONVERT; 186641f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng TruncOp = ISD::BIT_CONVERT; 186741f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng } else if (MVT::isInteger(Tmp2.getValueType())) { 1868456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner ExtOp = ISD::ANY_EXTEND; 1869456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner TruncOp = ISD::TRUNCATE; 187055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } else { 1871456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner ExtOp = ISD::FP_EXTEND; 1872456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner TruncOp = ISD::FP_ROUND; 187355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 187455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner // Promote each of the values to the new type. 187555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Tmp2 = DAG.getNode(ExtOp, NVT, Tmp2); 187655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Tmp3 = DAG.getNode(ExtOp, NVT, Tmp3); 187755ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner // Perform the larger operation, then round down. 187855ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Tmp1, Tmp2,Tmp3); 187955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Result = DAG.getNode(TruncOp, Node->getValueType(0), Result); 188055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 188155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 188255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 18833e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 1884750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SELECT_CC: { 1885750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = Node->getOperand(0); // LHS 1886750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(1); // RHS 18879373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); // True 18889373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp4 = LegalizeOp(Node->getOperand(3)); // False 1889750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand CC = Node->getOperand(4); 18909373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman 1891750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp1, Tmp2, CC); 1892750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 1893750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we didn't get both a LHS and RHS back from LegalizeSetCCOperands, 1894750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the LHS is a legal SETCC itself. In this case, we need to compare 1895750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the result against zero to select between true and false values. 1896750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp2.Val == 0) { 1897750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getConstant(0, Tmp1.getValueType()); 1898750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CC = DAG.getCondCode(ISD::SETNE); 1899750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 1900750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4, CC); 1901750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 1902750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Everything is legal, see if we should expand this op or something. 1903750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (TLI.getOperationAction(ISD::SELECT_CC, Tmp3.getValueType())) { 1904750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "This action is not supported yet!"); 1905750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case TargetLowering::Legal: break; 1906750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case TargetLowering::Custom: 1907750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = TLI.LowerOperation(Result, DAG); 1908750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp1.Val) Result = Tmp1; 19099373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 19109373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 19119373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 1912750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 19133e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SETCC: 1914750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = Node->getOperand(0); 1915750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(1); 1916750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = Node->getOperand(2); 1917750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp1, Tmp2, Tmp3); 1918750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 1919750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we had to Expand the SetCC operands into a SELECT node, then it may 1920750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // not always be possible to return a true LHS & RHS. In this case, just 1921750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // return the value we legalized, returned in the LHS 1922750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp2.Val == 0) { 1923750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = Tmp1; 19243e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 19253e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1926b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman 192773e142f2b6a3b5223de2d557d646f319ca8168cfChris Lattner switch (TLI.getOperationAction(ISD::SETCC, Tmp1.getValueType())) { 1928456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner default: assert(0 && "Cannot handle this action for SETCC yet!"); 1929456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1930456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 1931456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH. 1932456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 1933c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 1934456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 1935456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 1936456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp3.Val) Result = Tmp3; 1937456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 1938b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman break; 1939ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth case TargetLowering::Promote: { 1940ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // First step, figure out the appropriate operation to use. 1941ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Allow SETCC to not be supported for all legal data types 1942ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Mostly this targets FP 1943ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth MVT::ValueType NewInTy = Node->getOperand(0).getValueType(); 1944ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth MVT::ValueType OldVT = NewInTy; 1945ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 1946ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Scan for the appropriate larger type to use. 1947ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth while (1) { 1948ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth NewInTy = (MVT::ValueType)(NewInTy+1); 1949ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 1950ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth assert(MVT::isInteger(NewInTy) == MVT::isInteger(OldVT) && 1951ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth "Fell off of the edge of the integer world"); 1952ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth assert(MVT::isFloatingPoint(NewInTy) == MVT::isFloatingPoint(OldVT) && 1953ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth "Fell off of the edge of the floating point world"); 1954ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 1955ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // If the target supports SETCC of this type, use it. 19561ccf26a6392034a11827aeaa0d58d025ecb2b85aChris Lattner if (TLI.isOperationLegal(ISD::SETCC, NewInTy)) 1957ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth break; 1958ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 1959ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth if (MVT::isInteger(NewInTy)) 1960ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth assert(0 && "Cannot promote Legal Integer SETCC yet"); 1961ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth else { 1962ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth Tmp1 = DAG.getNode(ISD::FP_EXTEND, NewInTy, Tmp1); 1963ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth Tmp2 = DAG.getNode(ISD::FP_EXTEND, NewInTy, Tmp2); 1964ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 1965c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp1); 1966c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp2); 1967c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 1968433f8acefb78f1c8a2cf79c12b101ce7c4b20202Evan Cheng Result = LegalizeOp(Result); 19695e3efbc2ca459621400211f7370d7f121d4827d9Andrew Lenharth break; 1970ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 1971b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman case TargetLowering::Expand: 1972b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman // Expand a setcc node into a select_cc of the same condition, lhs, and 1973b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman // rhs that selects between const 1 (true) and const 0 (false). 1974b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman MVT::ValueType VT = Node->getValueType(0); 1975b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman Result = DAG.getNode(ISD::SELECT_CC, VT, Tmp1, Tmp2, 1976b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman DAG.getConstant(1, VT), DAG.getConstant(0, VT), 1977b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman Node->getOperand(2)); 1978b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman break; 1979b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman } 19803e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 1981e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner case ISD::MEMSET: 1982e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner case ISD::MEMCPY: 1983e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner case ISD::MEMMOVE: { 1984deb692e756cd3826e4ecc6eaec3397177c8b89ceChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Chain 1985e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Pointer 1986e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner 1987e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner if (Node->getOpcode() == ISD::MEMSET) { // memset = ubyte 1988e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner switch (getTypeAction(Node->getOperand(2).getValueType())) { 1989e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Expand: assert(0 && "Cannot expand a byte!"); 1990e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Legal: 1991deb692e756cd3826e4ecc6eaec3397177c8b89ceChris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); 1992e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 1993e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Promote: 1994deb692e756cd3826e4ecc6eaec3397177c8b89ceChris Lattner Tmp3 = PromoteOp(Node->getOperand(2)); 1995e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 1996e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } 1997e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } else { 1998edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Tmp3 = LegalizeOp(Node->getOperand(2)); // memcpy/move = pointer, 1999e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } 2000272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner 2001272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner SDOperand Tmp4; 2002272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner switch (getTypeAction(Node->getOperand(3).getValueType())) { 20036814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner case Expand: { 20046814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner // Length is too big, just take the lo-part of the length. 20056814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner SDOperand HiPart; 20066814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner ExpandOp(Node->getOperand(3), HiPart, Tmp4); 20076814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner break; 20086814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner } 2009e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Legal: 2010e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp4 = LegalizeOp(Node->getOperand(3)); 2011e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 2012e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Promote: 2013e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp4 = PromoteOp(Node->getOperand(3)); 2014272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner break; 2015272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner } 2016272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner 2017272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner SDOperand Tmp5; 2018272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner switch (getTypeAction(Node->getOperand(4).getValueType())) { // uint 2019272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner case Expand: assert(0 && "Cannot expand this yet!"); 2020272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner case Legal: 2021272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner Tmp5 = LegalizeOp(Node->getOperand(4)); 2022272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner break; 2023272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner case Promote: 2024e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp5 = PromoteOp(Node->getOperand(4)); 2025e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 2026e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } 202755ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner 202855ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), MVT::Other)) { 202955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action not implemented for this operation!"); 2030456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2031456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2032456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 203355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Legal: 2034c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4, Tmp5); 2035456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2036456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2037456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2038456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 203955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 204055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Expand: { 2041e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner // Otherwise, the target does not support this operation. Lower the 2042e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner // operation to an explicit libcall as appropriate. 2043e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner MVT::ValueType IntPtr = TLI.getPointerTy(); 2044a69571c7991813c93cba64e88eced6899ce93d81Owen Anderson const Type *IntPtrTy = TLI.getTargetData()->getIntPtrType(); 2045e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner std::vector<std::pair<SDOperand, const Type*> > Args; 2046e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner 20473bfbf4ea990930d153e58e153f319408341a94feReid Spencer const char *FnName = 0; 2048e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner if (Node->getOpcode() == ISD::MEMSET) { 2049e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner Args.push_back(std::make_pair(Tmp2, IntPtrTy)); 2050dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner // Extend the (previously legalized) ubyte argument to be an int value 2051dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner // for the call. 2052dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner if (Tmp3.getValueType() > MVT::i32) 2053dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner Tmp3 = DAG.getNode(ISD::TRUNCATE, MVT::i32, Tmp3); 2054dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner else 2055dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner Tmp3 = DAG.getNode(ISD::ZERO_EXTEND, MVT::i32, Tmp3); 2056e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner Args.push_back(std::make_pair(Tmp3, Type::IntTy)); 2057e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner Args.push_back(std::make_pair(Tmp4, IntPtrTy)); 2058e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner 2059e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner FnName = "memset"; 2060e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } else if (Node->getOpcode() == ISD::MEMCPY || 2061e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner Node->getOpcode() == ISD::MEMMOVE) { 2062e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner Args.push_back(std::make_pair(Tmp2, IntPtrTy)); 2063e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner Args.push_back(std::make_pair(Tmp3, IntPtrTy)); 2064e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner Args.push_back(std::make_pair(Tmp4, IntPtrTy)); 2065e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner FnName = Node->getOpcode() == ISD::MEMMOVE ? "memmove" : "memcpy"; 2066e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } else { 2067e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner assert(0 && "Unknown op!"); 2068e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } 206945982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner 2070e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner std::pair<SDOperand,SDOperand> CallResult = 2071adf6a965a321372c640845407195594835921eb4Chris Lattner TLI.LowerCallTo(Tmp1, Type::VoidTy, false, CallingConv::C, false, 2072e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner DAG.getExternalSymbol(FnName, IntPtr), Args, DAG); 2073456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = CallResult.second; 207455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 207555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 2076e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } 2077e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner break; 2078e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } 207952d08bd9d8a8dcc06148525c7fad6f2ebcad0a42Chris Lattner 20805b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SHL_PARTS: 20815b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SRA_PARTS: 20825b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SRL_PARTS: { 2083f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 208484f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner bool Changed = false; 208584f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 208684f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 208784f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner Changed |= Ops.back() != Node->getOperand(i); 208884f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner } 2089c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Changed) 2090f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 20912c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 209205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), 209305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Node->getValueType(0))) { 209405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng default: assert(0 && "This action is not supported yet!"); 2095456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2096456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2097456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2098456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) { 2099456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand Tmp2, RetVal(0, 0); 210005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) { 2101456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = LegalizeOp(Tmp1.getValue(i)); 210205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng AddLegalizedOperand(SDOperand(Node, i), Tmp2); 210305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if (i == Op.ResNo) 210412f2274ba8c6af21e8b6c71ef872afe43a64b6d7Evan Cheng RetVal = Tmp2; 210505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 2106269f8c069105e13f3845a8dbc7796ac9a15dc882Chris Lattner assert(RetVal.Val && "Illegal result number"); 210705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng return RetVal; 210805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 210905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng break; 211005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 211105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 21122c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Since these produce multiple values, make sure to remember that we 21132c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // legalized all of them. 21142c8086f4b9916b2d02842be5e375276023225fbaChris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 21152c8086f4b9916b2d02842be5e375276023225fbaChris Lattner AddLegalizedOperand(SDOperand(Node, i), Result.getValue(i)); 21162c8086f4b9916b2d02842be5e375276023225fbaChris Lattner return Result.getValue(Op.ResNo); 211784f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner } 21182c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 21192c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Binary operators 21203e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ADD: 21213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SUB: 21223e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::MUL: 2123c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MULHS: 2124c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MULHU: 21253e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::UDIV: 21263e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SDIV: 21273e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::AND: 21283e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::OR: 21293e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::XOR: 213003c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SHL: 213103c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SRL: 213203c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SRA: 213301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FADD: 213401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FSUB: 213501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FMUL: 213601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FDIV: 21373e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 2138f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth switch (getTypeAction(Node->getOperand(1).getValueType())) { 2139f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Expand: assert(0 && "Not possible"); 2140f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Legal: 2141f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the RHS. 2142f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth break; 2143f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Promote: 2144f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the RHS. 2145f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth break; 2146f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth } 2147c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 2148c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2149456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2150e8f65f1e62ea1d4f2ca9fd0137ae2e0ce20e26e1Andrew Lenharth switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2151bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner default: assert(0 && "BinOp legalize operation not supported"); 2152456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2153456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2154456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2155456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 215657030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth break; 2157bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner case TargetLowering::Expand: { 215852cc1ea2a1a374b58801398460a6289723089d91Evan Cheng if (Node->getValueType(0) == MVT::i32) { 215952cc1ea2a1a374b58801398460a6289723089d91Evan Cheng switch (Node->getOpcode()) { 216052cc1ea2a1a374b58801398460a6289723089d91Evan Cheng default: assert(0 && "Do not know how to expand this integer BinOp!"); 216152cc1ea2a1a374b58801398460a6289723089d91Evan Cheng case ISD::UDIV: 216252cc1ea2a1a374b58801398460a6289723089d91Evan Cheng case ISD::SDIV: 216352cc1ea2a1a374b58801398460a6289723089d91Evan Cheng const char *FnName = Node->getOpcode() == ISD::UDIV 216452cc1ea2a1a374b58801398460a6289723089d91Evan Cheng ? "__udivsi3" : "__divsi3"; 216552cc1ea2a1a374b58801398460a6289723089d91Evan Cheng SDOperand Dummy; 216652cc1ea2a1a374b58801398460a6289723089d91Evan Cheng Result = ExpandLibCall(FnName, Node, Dummy); 216752cc1ea2a1a374b58801398460a6289723089d91Evan Cheng }; 216852cc1ea2a1a374b58801398460a6289723089d91Evan Cheng break; 216952cc1ea2a1a374b58801398460a6289723089d91Evan Cheng } 217052cc1ea2a1a374b58801398460a6289723089d91Evan Cheng 2171bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner assert(MVT::isVector(Node->getValueType(0)) && 2172bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner "Cannot expand this binary operator!"); 2173bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner // Expand the operation into a bunch of nasty scalar code. 2174bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Ops; 2175bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner MVT::ValueType EltVT = MVT::getVectorBaseType(Node->getValueType(0)); 2176bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner MVT::ValueType PtrVT = TLI.getPointerTy(); 2177bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner for (unsigned i = 0, e = MVT::getVectorNumElements(Node->getValueType(0)); 2178bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner i != e; ++i) { 2179bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner SDOperand Idx = DAG.getConstant(i, PtrVT); 2180bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner SDOperand LHS = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EltVT, Tmp1, Idx); 2181bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner SDOperand RHS = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EltVT, Tmp2, Idx); 2182bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner Ops.push_back(DAG.getNode(Node->getOpcode(), EltVT, LHS, RHS)); 2183bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner } 2184bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Result = DAG.getNode(ISD::BUILD_VECTOR, Node->getValueType(0), 2185bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &Ops[0], Ops.size()); 2186bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner break; 2187bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner } 2188cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case TargetLowering::Promote: { 2189cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng switch (Node->getOpcode()) { 2190cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng default: assert(0 && "Do not know how to promote this BinOp!"); 2191cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case ISD::AND: 2192cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case ISD::OR: 2193cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case ISD::XOR: { 2194cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng MVT::ValueType OVT = Node->getValueType(0); 2195cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 2196cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng assert(MVT::isVector(OVT) && "Cannot promote this BinOp!"); 2197cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng // Bit convert each of the values to the new type. 2198cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Tmp1 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp1); 2199cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Tmp2 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp2); 2200cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 2201cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng // Bit convert the result back the original type. 2202cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Result = DAG.getNode(ISD::BIT_CONVERT, OVT, Result); 2203cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng break; 2204cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng } 2205cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng } 2206cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng } 2207e8f65f1e62ea1d4f2ca9fd0137ae2e0ce20e26e1Andrew Lenharth } 22083e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2209a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 2210a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case ISD::FCOPYSIGN: // FCOPYSIGN does not require LHS/RHS to match type! 2211a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 2212a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner switch (getTypeAction(Node->getOperand(1).getValueType())) { 2213a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Expand: assert(0 && "Not possible"); 2214a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Legal: 2215a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the RHS. 2216a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 2217a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Promote: 2218a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the RHS. 2219a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 2220a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner } 2221a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 2222a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2223a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 2224a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2225a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner default: assert(0 && "Operation not supported"); 2226a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case TargetLowering::Custom: 2227a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2228a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner if (Tmp1.Val) Result = Tmp1; 22298f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner break; 2230a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case TargetLowering::Legal: break; 2231a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case TargetLowering::Expand: 22328f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // If this target supports fabs/fneg natively, do this efficiently. 22338f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner if (TLI.isOperationLegal(ISD::FABS, Tmp1.getValueType()) && 22348f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner TLI.isOperationLegal(ISD::FNEG, Tmp1.getValueType())) { 22358f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Get the sign bit of the RHS. 22368f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner MVT::ValueType IVT = 22378f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Tmp2.getValueType() == MVT::f32 ? MVT::i32 : MVT::i64; 22388f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SDOperand SignBit = DAG.getNode(ISD::BIT_CONVERT, IVT, Tmp2); 22398f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SignBit = DAG.getSetCC(TLI.getSetCCResultTy(), 22408f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SignBit, DAG.getConstant(0, IVT), ISD::SETLT); 22418f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Get the absolute value of the result. 22428f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SDOperand AbsVal = DAG.getNode(ISD::FABS, Tmp1.getValueType(), Tmp1); 22438f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Select between the nabs and abs value based on the sign bit of 22448f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // the input. 22458f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Result = DAG.getNode(ISD::SELECT, AbsVal.getValueType(), SignBit, 22468f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner DAG.getNode(ISD::FNEG, AbsVal.getValueType(), 22478f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner AbsVal), 22488f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner AbsVal); 22498f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Result = LegalizeOp(Result); 22508f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner break; 22518f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner } 22528f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner 22538f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Otherwise, do bitwise ops! 22548f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner 22558f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // copysign -> copysignf/copysign libcall. 2256a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner const char *FnName; 2257a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner if (Node->getValueType(0) == MVT::f32) { 2258a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner FnName = "copysignf"; 2259a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner if (Tmp2.getValueType() != MVT::f32) // Force operands to match type. 2260a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, 2261a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner DAG.getNode(ISD::FP_ROUND, MVT::f32, Tmp2)); 2262a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner } else { 2263a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner FnName = "copysign"; 2264a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner if (Tmp2.getValueType() != MVT::f64) // Force operands to match type. 2265a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, 2266a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner DAG.getNode(ISD::FP_EXTEND, MVT::f64, Tmp2)); 2267a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner } 2268a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner SDOperand Dummy; 2269a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Result = ExpandLibCall(FnName, Node, Dummy); 2270a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 2271a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner } 2272a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 2273a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 2274551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::ADDC: 2275551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::SUBC: 2276551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); 2277551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); 2278551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2279551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // Since this produces two values, make sure to remember that we legalized 2280551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // both of them. 2281551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 2282551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 2283551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman return Result; 2284edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 2285551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::ADDE: 2286551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::SUBE: 2287551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); 2288551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); 2289551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); 2290551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2291551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // Since this produces two values, make sure to remember that we legalized 2292551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // both of them. 2293551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 2294551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 2295551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman return Result; 2296551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman 2297419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case ISD::BUILD_PAIR: { 2298419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman MVT::ValueType PairTy = Node->getValueType(0); 2299419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman // TODO: handle the case where the Lo and Hi operands are not of legal type 2300419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Lo 2301419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Hi 2302419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman switch (TLI.getOperationAction(ISD::BUILD_PAIR, PairTy)) { 2303456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 2304456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2305456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner assert(0 && "Cannot promote/custom this yet!"); 2306419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case TargetLowering::Legal: 2307419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman if (Tmp1 != Node->getOperand(0) || Tmp2 != Node->getOperand(1)) 2308419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Result = DAG.getNode(ISD::BUILD_PAIR, PairTy, Tmp1, Tmp2); 2309419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 2310419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case TargetLowering::Expand: 2311419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, PairTy, Tmp1); 2312419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = DAG.getNode(ISD::ANY_EXTEND, PairTy, Tmp2); 2313419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = DAG.getNode(ISD::SHL, PairTy, Tmp2, 2314419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman DAG.getConstant(MVT::getSizeInBits(PairTy)/2, 2315419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman TLI.getShiftAmountTy())); 2316456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::OR, PairTy, Tmp1, Tmp2); 2317419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 2318419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman } 2319419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 2320419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman } 2321419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman 2322c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman case ISD::UREM: 2323c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman case ISD::SREM: 232401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FREM: 2325c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 2326c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS 2327456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2328c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2329456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: assert(0 && "Cannot promote this yet!"); 2330456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2331456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2332456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 233357030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth case TargetLowering::Legal: 2334c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2335456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2336456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2337456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2338456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 233957030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth break; 23404c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner case TargetLowering::Expand: 23416b5578f052c2405c0d622192ccacfd47563c99a8Evan Cheng unsigned DivOpc= (Node->getOpcode() == ISD::UREM) ? ISD::UDIV : ISD::SDIV; 23424c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner if (MVT::isInteger(Node->getValueType(0))) { 234352cc1ea2a1a374b58801398460a6289723089d91Evan Cheng if (TLI.getOperationAction(DivOpc, Node->getValueType(0)) == 234452cc1ea2a1a374b58801398460a6289723089d91Evan Cheng TargetLowering::Legal) { 234552cc1ea2a1a374b58801398460a6289723089d91Evan Cheng // X % Y -> X-X/Y*Y 234652cc1ea2a1a374b58801398460a6289723089d91Evan Cheng MVT::ValueType VT = Node->getValueType(0); 23476b5578f052c2405c0d622192ccacfd47563c99a8Evan Cheng Result = DAG.getNode(DivOpc, VT, Tmp1, Tmp2); 234852cc1ea2a1a374b58801398460a6289723089d91Evan Cheng Result = DAG.getNode(ISD::MUL, VT, Result, Tmp2); 234952cc1ea2a1a374b58801398460a6289723089d91Evan Cheng Result = DAG.getNode(ISD::SUB, VT, Tmp1, Result); 235052cc1ea2a1a374b58801398460a6289723089d91Evan Cheng } else { 235152cc1ea2a1a374b58801398460a6289723089d91Evan Cheng assert(Node->getValueType(0) == MVT::i32 && 235252cc1ea2a1a374b58801398460a6289723089d91Evan Cheng "Cannot expand this binary operator!"); 235352cc1ea2a1a374b58801398460a6289723089d91Evan Cheng const char *FnName = Node->getOpcode() == ISD::UREM 235452cc1ea2a1a374b58801398460a6289723089d91Evan Cheng ? "__umodsi3" : "__modsi3"; 235552cc1ea2a1a374b58801398460a6289723089d91Evan Cheng SDOperand Dummy; 235652cc1ea2a1a374b58801398460a6289723089d91Evan Cheng Result = ExpandLibCall(FnName, Node, Dummy); 235752cc1ea2a1a374b58801398460a6289723089d91Evan Cheng } 23584c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner } else { 23594c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner // Floating point mod -> fmod libcall. 23604c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner const char *FnName = Node->getValueType(0) == MVT::f32 ? "fmodf":"fmod"; 23614c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner SDOperand Dummy; 23629c6b4b8c3a48aa420f6499ca6c1a356f74e100f8Chris Lattner Result = ExpandLibCall(FnName, Node, Dummy); 2363c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman } 2364c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman break; 2365c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman } 2366c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman break; 2367acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAARG: { 2368acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2369acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 2370acc398c195a697795bff3245943d104eb19192b9Nate Begeman 23715c62f337fe846247f5e72acb32844e24b4f18b71Chris Lattner MVT::ValueType VT = Node->getValueType(0); 2372acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), MVT::Other)) { 2373acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 2374456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2375456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2376456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 2377acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 2378c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 2379c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = Result.getValue(0); 2380456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Result.getValue(1); 2381456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2382456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2383456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = TLI.LowerOperation(Result, DAG); 2384456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp2.Val) { 2385456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Tmp2); 2386456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Tmp2.getValue(1)); 2387456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2388456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2389acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2390acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: { 2391466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SrcValueSDNode *SV = cast<SrcValueSDNode>(Node->getOperand(2)); 2392acc398c195a697795bff3245943d104eb19192b9Nate Begeman SDOperand VAList = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp2, 2393466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SV->getValue(), SV->getOffset()); 2394acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Increment the pointer, VAList, to the next vaarg 2395acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp3 = DAG.getNode(ISD::ADD, TLI.getPointerTy(), VAList, 2396acc398c195a697795bff3245943d104eb19192b9Nate Begeman DAG.getConstant(MVT::getSizeInBits(VT)/8, 2397acc398c195a697795bff3245943d104eb19192b9Nate Begeman TLI.getPointerTy())); 2398acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Store the incremented VAList to the legalized pointer 2399786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng Tmp3 = DAG.getStore(VAList.getValue(1), Tmp3, Tmp2, Node->getOperand(2)); 2400acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Load the actual argument out of the pointer VAList 2401466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getLoad(VT, Tmp3, VAList, NULL, 0); 2402456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Result.getValue(1)); 2403acc398c195a697795bff3245943d104eb19192b9Nate Begeman Result = LegalizeOp(Result); 2404acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2405acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2406acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2407acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Since VAARG produces two values, make sure to remember that we 2408acc398c195a697795bff3245943d104eb19192b9Nate Begeman // legalized both of them. 2409acc398c195a697795bff3245943d104eb19192b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result); 2410456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp1); 2411456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner return Op.ResNo ? Tmp1 : Result; 2412acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2413acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2414acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VACOPY: 2415acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2416acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the dest pointer. 2417acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the source pointer. 2418acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2419acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VACOPY, MVT::Other)) { 2420acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 2421456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2422456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2423456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 2424acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 2425c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, 2426c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Node->getOperand(3), Node->getOperand(4)); 2427456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2428456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2429456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2430456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2431acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2432acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: 2433acc398c195a697795bff3245943d104eb19192b9Nate Begeman // This defaults to loading a pointer from the input and storing it to the 2434acc398c195a697795bff3245943d104eb19192b9Nate Begeman // output, returning the chain. 2435466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SrcValueSDNode *SVD = cast<SrcValueSDNode>(Node->getOperand(3)); 2436466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp4 = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp3, SVD->getValue(), 2437466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SVD->getOffset()); 2438786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng Result = DAG.getStore(Tmp4.getValue(1), Tmp4, Tmp2, Node->getOperand(4)); 2439acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2440acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2441acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2442acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2443acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAEND: 2444acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2445acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 2446acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2447acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VAEND, MVT::Other)) { 2448acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 2449456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2450456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2451456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 2452acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 2453c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 2454456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2455456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Tmp1, DAG); 2456456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2457456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2458acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2459acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: 2460acc398c195a697795bff3245943d104eb19192b9Nate Begeman Result = Tmp1; // Default to a no-op, return the chain 2461acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2462acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2463acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2464acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2465acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VASTART: 2466acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2467acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 2468acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2469c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 2470c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 2471acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VASTART, MVT::Other)) { 2472acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 2473456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2474456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2475456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2476456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2477acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2478acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2479acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2480acc398c195a697795bff3245943d104eb19192b9Nate Begeman 248135ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman case ISD::ROTL: 248235ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman case ISD::ROTR: 248335ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 248435ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS 2485456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2486456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner assert(TLI.isOperationLegal(Node->getOpcode(), Node->getValueType(0)) && 2487456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner "Cannot handle this yet!"); 2488c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 248935ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman break; 249035ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman 2491d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: 2492d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Op 2493d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2494456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2495456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner assert(0 && "Cannot custom legalize this yet!"); 2496456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 2497c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2498456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2499456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: { 2500456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner MVT::ValueType OVT = Tmp1.getValueType(); 2501456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 2502456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner unsigned DiffBits = getSizeInBits(NVT) - getSizeInBits(OVT); 2503456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2504456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 2505456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::BSWAP, NVT, Tmp1); 2506456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRL, NVT, Tmp1, 2507456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner DAG.getConstant(DiffBits, TLI.getShiftAmountTy())); 2508456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2509456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2510456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Expand: 2511456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = ExpandBSWAP(Tmp1); 2512456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2513d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman } 2514d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 2515d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman 2516691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTPOP: 2517691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTTZ: 2518691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTLZ: 2519691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Op 2520691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2521456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: assert(0 && "Cannot custom handle this yet!"); 2522691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Legal: 2523c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2524691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2525691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Promote: { 2526691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth MVT::ValueType OVT = Tmp1.getValueType(); 2527691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 2528edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 2529edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner // Zero extend the argument. 2530691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 2531691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth // Perform the larger operation, then subtract if needed. 2532691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = DAG.getNode(Node->getOpcode(), Node->getValueType(0), Tmp1); 2533456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch (Node->getOpcode()) { 2534691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTPOP: 2535691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Result = Tmp1; 2536691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2537691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTTZ: 2538691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth //if Tmp1 == sizeinbits(NVT) then Tmp1 = sizeinbits(Old VT) 25397cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), Tmp1, 25407cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner DAG.getConstant(getSizeInBits(NVT), NVT), 25417cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETEQ); 254200b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SELECT, NVT, Tmp2, 2543691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth DAG.getConstant(getSizeInBits(OVT),NVT), Tmp1); 2544691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2545691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTLZ: 2546456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Tmp1 = Tmp1 - (sizeinbits(NVT) - sizeinbits(Old VT)) 254700b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SUB, NVT, Tmp1, 254800b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen DAG.getConstant(getSizeInBits(NVT) - 2549691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth getSizeInBits(OVT), NVT)); 2550691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2551691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 2552691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2553691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 2554691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Expand: 2555456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = ExpandBitCount(Node->getOpcode(), Tmp1); 2556691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2557691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 2558691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 255900b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen 25602c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Unary operators 25612c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FABS: 25622c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FNEG: 2563da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSQRT: 2564da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSIN: 2565da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FCOS: 25662c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 25672c8086f4b9916b2d02842be5e375276023225fbaChris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2568456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 2569456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 257059ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng isCustom = true; 257159ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng // FALLTHROUGH 25722c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case TargetLowering::Legal: 2573c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 257459ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng if (isCustom) { 257559ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 257659ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng if (Tmp1.Val) Result = Tmp1; 257759ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng } 25782c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 25792c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case TargetLowering::Expand: 2580456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch (Node->getOpcode()) { 2581456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner default: assert(0 && "Unreachable!"); 2582456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case ISD::FNEG: 25832c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Expand Y = FNEG(X) -> Y = SUB -0.0, X 25842c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp2 = DAG.getConstantFP(-0.0, Node->getValueType(0)); 2585456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::FSUB, Node->getValueType(0), Tmp2, Tmp1); 2586f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 2587f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FABS: { 25884af6e0d7836126630f579b0a34f054321187f00bChris Lattner // Expand Y = FABS(X) -> Y = (X >u 0.0) ? X : fneg(X). 25894af6e0d7836126630f579b0a34f054321187f00bChris Lattner MVT::ValueType VT = Node->getValueType(0); 25904af6e0d7836126630f579b0a34f054321187f00bChris Lattner Tmp2 = DAG.getConstantFP(0.0, VT); 25917cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), Tmp1, Tmp2, ISD::SETUGT); 25924af6e0d7836126630f579b0a34f054321187f00bChris Lattner Tmp3 = DAG.getNode(ISD::FNEG, VT, Tmp1); 25934af6e0d7836126630f579b0a34f054321187f00bChris Lattner Result = DAG.getNode(ISD::SELECT, VT, Tmp2, Tmp1, Tmp3); 2594f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 2595f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 2596f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FSQRT: 2597f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FSIN: 2598f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FCOS: { 2599f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner MVT::ValueType VT = Node->getValueType(0); 2600f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner const char *FnName = 0; 2601f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner switch(Node->getOpcode()) { 2602f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FSQRT: FnName = VT == MVT::f32 ? "sqrtf" : "sqrt"; break; 2603f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FSIN: FnName = VT == MVT::f32 ? "sinf" : "sin"; break; 2604f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FCOS: FnName = VT == MVT::f32 ? "cosf" : "cos"; break; 2605f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner default: assert(0 && "Unreachable!"); 2606f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 26072ac4fc032050ff1e0f06bd8e27126e979406effbNate Begeman SDOperand Dummy; 26089c6b4b8c3a48aa420f6499ca6c1a356f74e100f8Chris Lattner Result = ExpandLibCall(FnName, Node, Dummy); 2609f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 2610f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 26112c8086f4b9916b2d02842be5e375276023225fbaChris Lattner } 26122c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 26132c8086f4b9916b2d02842be5e375276023225fbaChris Lattner } 26142c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 26156ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner case ISD::FPOWI: { 26166ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner // We always lower FPOWI into a libcall. No target support it yet. 26176ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner const char *FnName = Node->getValueType(0) == MVT::f32 26186ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner ? "__powisf2" : "__powidf2"; 26196ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner SDOperand Dummy; 26206ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner Result = ExpandLibCall(FnName, Node, Dummy); 26216ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner break; 26226ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner } 262335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: 262467993f7b974cd17e4372a6b7b9f9cad5ed174df1Chris Lattner if (!isTypeLegal(Node->getOperand(0).getValueType())) { 262535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = ExpandBIT_CONVERT(Node->getValueType(0), Node->getOperand(0)); 262667993f7b974cd17e4372a6b7b9f9cad5ed174df1Chris Lattner } else { 262735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner switch (TLI.getOperationAction(ISD::BIT_CONVERT, 262835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Node->getOperand(0).getValueType())) { 262935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner default: assert(0 && "Unknown operation action!"); 263035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case TargetLowering::Expand: 263135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = ExpandBIT_CONVERT(Node->getValueType(0), Node->getOperand(0)); 263235481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 263335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case TargetLowering::Legal: 263435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 2635c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 263635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 263735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 263835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 263935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 2640d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner case ISD::VBIT_CONVERT: { 2641d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner assert(Op.getOperand(0).getValueType() == MVT::Vector && 2642d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner "Can only have VBIT_CONVERT where input or output is MVT::Vector!"); 2643d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner 2644d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner // The input has to be a vector type, we have to either scalarize it, pack 2645d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner // it, or convert it based on whether the input vector type is legal. 2646d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner SDNode *InVal = Node->getOperand(0).Val; 2647d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner unsigned NumElems = 2648d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner cast<ConstantSDNode>(*(InVal->op_end()-2))->getValue(); 2649d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner MVT::ValueType EVT = cast<VTSDNode>(*(InVal->op_end()-1))->getVT(); 2650d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner 2651d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner // Figure out if there is a Packed type corresponding to this Vector 2652d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner // type. If so, convert to the packed type. 2653d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 2654d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner if (TVT != MVT::Other && TLI.isTypeLegal(TVT)) { 2655d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner // Turn this into a bit convert of the packed input. 2656d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), 2657d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner PackVectorOp(Node->getOperand(0), TVT)); 2658d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner break; 2659d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner } else if (NumElems == 1) { 2660d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner // Turn this into a bit convert of the scalar input. 2661d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), 2662d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner PackVectorOp(Node->getOperand(0), EVT)); 2663d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner break; 2664d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner } else { 2665d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner // FIXME: UNIMP! Store then reload 2666d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner assert(0 && "Cast from unsupported vector type not implemented yet!"); 2667d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner } 2668d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner } 2669d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner 26702c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Conversion operators. The source and destination have different types. 2671fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::SINT_TO_FP: 2672fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::UINT_TO_FP: { 2673fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner bool isSigned = Node->getOpcode() == ISD::SINT_TO_FP; 2674fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 2675fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 2676d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen switch (TLI.getOperationAction(Node->getOpcode(), 2677fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getOperand(0).getValueType())) { 2678fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner default: assert(0 && "Unknown operation action!"); 2679456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2680456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2681456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 2682456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 2683456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 2684c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2685456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2686456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2687456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2688456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2689456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2690fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case TargetLowering::Expand: 26916269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey Result = ExpandLegalINT_TO_FP(isSigned, 26926269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey LegalizeOp(Node->getOperand(0)), 26936269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey Node->getValueType(0)); 2694456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2695fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case TargetLowering::Promote: 2696fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = PromoteLegalINT_TO_FP(LegalizeOp(Node->getOperand(0)), 2697fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getValueType(0), 2698fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner isSigned); 2699fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 27005b5b8c27556e5dc8792e37436e4ddd7ab157192dAndrew Lenharth } 2701fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2702fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Expand: 2703fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, 2704fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getValueType(0), Node->getOperand(0)); 2705fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2706fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 2707c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 2708fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner if (isSigned) { 2709c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, Tmp1.getValueType(), 2710c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1, DAG.getValueType(Node->getOperand(0).getValueType())); 2711fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } else { 2712c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, 2713c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Node->getOperand(0).getValueType()); 2714fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 2715c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2716c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); // The 'op' is not necessarily legal! 2717fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2718fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 2719fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2720fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 2721fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::TRUNCATE: 2722fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 2723fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 2724fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 2725c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2726fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2727fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Expand: 2728fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 2729fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner 2730fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner // Since the result is legal, we should just be able to truncate the low 2731fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner // part of the source. 2732fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), Tmp1); 2733fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2734fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 2735fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = PromoteOp(Node->getOperand(0)); 2736fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, Op.getValueType(), Result); 2737fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2738fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 2739fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2740d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 2741fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::FP_TO_SINT: 2742fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::FP_TO_UINT: 2743fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 2744fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 2745f1fa74ee0d30dfdb854f7d3f5ee67437cc82e250Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 2746f1fa74ee0d30dfdb854f7d3f5ee67437cc82e250Chris Lattner 27471618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))){ 27481618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner default: assert(0 && "Unknown operation action!"); 2749456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2750456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2751456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 2752456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 2753c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2754456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2755456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2756456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2757456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2758456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2759456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 2760456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = PromoteLegalFP_TO_INT(Tmp1, Node->getValueType(0), 2761456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Node->getOpcode() == ISD::FP_TO_SINT); 2762456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 27631618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner case TargetLowering::Expand: 2764d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman if (Node->getOpcode() == ISD::FP_TO_UINT) { 2765d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman SDOperand True, False; 2766d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman MVT::ValueType VT = Node->getOperand(0).getValueType(); 2767d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman MVT::ValueType NVT = Node->getValueType(0); 2768d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman unsigned ShiftAmt = MVT::getSizeInBits(Node->getValueType(0))-1; 2769d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp2 = DAG.getConstantFP((double)(1ULL << ShiftAmt), VT); 2770d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp3 = DAG.getSetCC(TLI.getSetCCResultTy(), 2771d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Node->getOperand(0), Tmp2, ISD::SETLT); 2772d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman True = DAG.getNode(ISD::FP_TO_SINT, NVT, Node->getOperand(0)); 2773d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman False = DAG.getNode(ISD::FP_TO_SINT, NVT, 277401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner DAG.getNode(ISD::FSUB, VT, Node->getOperand(0), 2775d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp2)); 2776d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman False = DAG.getNode(ISD::XOR, NVT, False, 2777d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman DAG.getConstant(1ULL << ShiftAmt, NVT)); 2778456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Tmp3, True, False); 2779456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2780d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } else { 2781d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman assert(0 && "Do not know how to expand FP_TO_SINT yet!"); 2782d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } 2783d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman break; 27841618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner } 2785fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2786fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Expand: 2787fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner assert(0 && "Shouldn't need to expand other operators here!"); 2788fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 2789c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 2790c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, LegalizeOp(Tmp1)); 2791c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); 2792fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2793fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 2794fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2795d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 279613c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 27973e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ZERO_EXTEND: 27983e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SIGN_EXTEND: 279903c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::FP_EXTEND: 280003c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::FP_ROUND: 28013e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 2802456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case Expand: assert(0 && "Shouldn't need to expand other operators here!"); 28033e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 28043e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 2805c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 28063e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 280703c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Promote: 280803c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (Node->getOpcode()) { 280913c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 2810c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 2811c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Tmp1); 281213c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner break; 28131713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner case ISD::ZERO_EXTEND: 28141713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = PromoteOp(Node->getOperand(0)); 281513c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Result); 281623993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 281723993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 281803c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 281903c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::SIGN_EXTEND: 28201713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = PromoteOp(Node->getOperand(0)); 282113c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Result); 28221713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 282315e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result, 282415e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 28251713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner break; 282603c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::FP_EXTEND: 28271713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = PromoteOp(Node->getOperand(0)); 28281713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner if (Result.getValueType() != Op.getValueType()) 28291713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner // Dynamically dead while we have only 2 FP types. 28301713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = DAG.getNode(ISD::FP_EXTEND, Op.getValueType(), Result); 28311713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner break; 283203c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::FP_ROUND: 2833f8161d83f0201a32a33a0c875eb43df81d8586abChris Lattner Result = PromoteOp(Node->getOperand(0)); 2834f8161d83f0201a32a33a0c875eb43df81d8586abChris Lattner Result = DAG.getNode(Node->getOpcode(), Op.getValueType(), Result); 2835f8161d83f0201a32a33a0c875eb43df81d8586abChris Lattner break; 283603c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 28373e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 28383e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 28390f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::FP_ROUND_INREG: 284023993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner case ISD::SIGN_EXTEND_INREG: { 28410f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 284215e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner MVT::ValueType ExtraVT = cast<VTSDNode>(Node->getOperand(1))->getVT(); 284345b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner 284445b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // If this operation is not supported, convert it to a shl/shr or load/store 284545b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // pair. 284655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), ExtraVT)) { 284755ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action not supported for this op yet!"); 284855ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Legal: 2849c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 285055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 285155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Expand: 285245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // If this is an integer extend and shifts are supported, do that. 285323993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner if (Node->getOpcode() == ISD::SIGN_EXTEND_INREG) { 285445b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // NOTE: we could fall back on load/store here too for targets without 285545b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // SAR. However, it is doubtful that any exist. 285645b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner unsigned BitsDiff = MVT::getSizeInBits(Node->getValueType(0)) - 285745b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner MVT::getSizeInBits(ExtraVT); 285827ff112948d059524e5f4ebe249a1da0b7c710e8Chris Lattner SDOperand ShiftCst = DAG.getConstant(BitsDiff, TLI.getShiftAmountTy()); 285945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result = DAG.getNode(ISD::SHL, Node->getValueType(0), 286045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Node->getOperand(0), ShiftCst); 286145b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result = DAG.getNode(ISD::SRA, Node->getValueType(0), 286245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result, ShiftCst); 286345b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } else if (Node->getOpcode() == ISD::FP_ROUND_INREG) { 286445b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // The only way we can lower this is to turn it into a STORETRUNC, 286545b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // EXTLOAD pair, targetting a temporary location (a stack slot). 286645b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner 286745b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // NOTE: there is a choice here between constantly creating new stack 286845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // slots and always reusing the same one. We currently always create 286945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // new ones, as reuse may inhibit scheduling. 287045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner const Type *Ty = MVT::getTypeForValueType(ExtraVT); 2871a69571c7991813c93cba64e88eced6899ce93d81Owen Anderson unsigned TySize = (unsigned)TLI.getTargetData()->getTypeSize(Ty); 2872a69571c7991813c93cba64e88eced6899ce93d81Owen Anderson unsigned Align = TLI.getTargetData()->getTypeAlignment(Ty); 287345b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner MachineFunction &MF = DAG.getMachineFunction(); 2874edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman int SSFI = 287545b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner MF.getFrameInfo()->CreateStackObject((unsigned)TySize, Align); 287645b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner SDOperand StackSlot = DAG.getFrameIndex(SSFI, TLI.getPointerTy()); 287745b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result = DAG.getNode(ISD::TRUNCSTORE, MVT::Other, DAG.getEntryNode(), 287852d08bd9d8a8dcc06148525c7fad6f2ebcad0a42Chris Lattner Node->getOperand(0), StackSlot, 28799fadb4c1c0a6d223aa468f9f72f8c2562dc66839Chris Lattner DAG.getSrcValue(NULL), DAG.getValueType(ExtraVT)); 28805f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner Result = DAG.getExtLoad(ISD::EXTLOAD, Node->getValueType(0), 2881466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result, StackSlot, NULL, 0, ExtraVT); 288245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } else { 288345b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner assert(0 && "Unknown op"); 288445b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 288555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 288645b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 28870f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner break; 28883e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 288945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 2890456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 28914ddd283f6928fc337c1bf3277566d7b31526e8d9Chris Lattner assert(Result.getValueType() == Op.getValueType() && 28924ddd283f6928fc337c1bf3277566d7b31526e8d9Chris Lattner "Bad legalization!"); 28934ddd283f6928fc337c1bf3277566d7b31526e8d9Chris Lattner 2894456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Make sure that the generated code is itself legal. 2895456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Result != Op) 2896456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Result); 28973e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 289845982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // Note that LegalizeOp may be reentered even from single-use nodes, which 289945982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // means that we always must cache transformed nodes. 290045982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner AddLegalizedOperand(Op, Result); 29013e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner return Result; 29023e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 29033e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 29048b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// PromoteOp - Given an operation that produces a value in an invalid type, 29058b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// promote it to compute the value into a larger type. The produced value will 29068b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// have the correct bits for the low portion of the register, but no guarantee 29078b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// is made about the top bits: it may be zero, sign-extended, or garbage. 290803c8546ec57523970874917854a2fb77b1ff598eChris LattnerSDOperand SelectionDAGLegalize::PromoteOp(SDOperand Op) { 290903c8546ec57523970874917854a2fb77b1ff598eChris Lattner MVT::ValueType VT = Op.getValueType(); 291071c42a0190300a8903aaea80467b88f15f327ea9Chris Lattner MVT::ValueType NVT = TLI.getTypeToTransformTo(VT); 291103c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(getTypeAction(VT) == Promote && 291203c8546ec57523970874917854a2fb77b1ff598eChris Lattner "Caller should expand or legalize operands that are not promotable!"); 291303c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(NVT > VT && MVT::isInteger(NVT) == MVT::isInteger(VT) && 291403c8546ec57523970874917854a2fb77b1ff598eChris Lattner "Cannot promote to smaller type!"); 291503c8546ec57523970874917854a2fb77b1ff598eChris Lattner 291603c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDOperand Tmp1, Tmp2, Tmp3; 291703c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDOperand Result; 291803c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDNode *Node = Op.Val; 291903c8546ec57523970874917854a2fb77b1ff598eChris Lattner 29206fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner std::map<SDOperand, SDOperand>::iterator I = PromotedNodes.find(Op); 29216fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner if (I != PromotedNodes.end()) return I->second; 292245982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner 292303c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (Node->getOpcode()) { 2924d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner case ISD::CopyFromReg: 2925d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner assert(0 && "CopyFromReg must be legal!"); 292603c8546ec57523970874917854a2fb77b1ff598eChris Lattner default: 2927e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 292803c8546ec57523970874917854a2fb77b1ff598eChris Lattner std::cerr << "NODE: "; Node->dump(); std::cerr << "\n"; 2929e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 293003c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(0 && "Do not know how to promote this operator!"); 293103c8546ec57523970874917854a2fb77b1ff598eChris Lattner abort(); 2932fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: 2933fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Result = DAG.getNode(ISD::UNDEF, NVT); 2934fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 293503c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::Constant: 2936ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner if (VT != MVT::i1) 2937ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND, NVT, Op); 2938ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner else 2939ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner Result = DAG.getNode(ISD::ZERO_EXTEND, NVT, Op); 294003c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(isa<ConstantSDNode>(Result) && "Didn't constant fold zext?"); 294103c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 294203c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::ConstantFP: 294303c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = DAG.getNode(ISD::FP_EXTEND, NVT, Op); 294403c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(isa<ConstantFPSDNode>(Result) && "Didn't constant fold fp_extend?"); 294503c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 2946ef5cd1d3cf7d0b20987a545fcd2d0af2bfe6c422Chris Lattner 294782fbfb6984c1feb7d44a077ac2dc031f4a950005Chris Lattner case ISD::SETCC: 2948c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner assert(isTypeLegal(TLI.getSetCCResultTy()) && "SetCC type is not legal??"); 29497cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Result = DAG.getNode(ISD::SETCC, TLI.getSetCCResultTy(),Node->getOperand(0), 29507cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Node->getOperand(1), Node->getOperand(2)); 295182fbfb6984c1feb7d44a077ac2dc031f4a950005Chris Lattner break; 2952fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner 295303c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::TRUNCATE: 295403c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 295503c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Legal: 295603c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = LegalizeOp(Node->getOperand(0)); 295703c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(Result.getValueType() >= NVT && 295803c8546ec57523970874917854a2fb77b1ff598eChris Lattner "This truncation doesn't make sense!"); 295903c8546ec57523970874917854a2fb77b1ff598eChris Lattner if (Result.getValueType() > NVT) // Truncate to NVT instead of VT 296003c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, NVT, Result); 296103c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 2962e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner case Promote: 2963e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner // The truncation is not required, because we don't guarantee anything 2964e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner // about high bits anyway. 2965e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner Result = PromoteOp(Node->getOperand(0)); 2966e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner break; 296703c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Expand: 296879e46acd35df36477029e9f534ab1a366a98df56Nate Begeman ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 296979e46acd35df36477029e9f534ab1a366a98df56Nate Begeman // Truncate the low part of the expanded value to the result type 2970e21c305ed85b2be4a27784ba52471f6b68fdd255Chris Lattner Result = DAG.getNode(ISD::TRUNCATE, NVT, Tmp1); 297103c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 297203c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 29738b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SIGN_EXTEND: 29748b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::ZERO_EXTEND: 297513c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 29768b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 29778b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: assert(0 && "BUG: Smaller reg should have been promoted!"); 29788b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 29798b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Input is legal? Just do extend all the way to the larger type. 2980456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Node->getOperand(0)); 29818b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 29828b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 29838b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Promote the reg if it's smaller. 29848b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = PromoteOp(Node->getOperand(0)); 29858b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The high bits are not guaranteed to be anything. Insert an extend. 29868b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (Node->getOpcode() == ISD::SIGN_EXTEND) 2987595dc5408ad809b9a9a417db275c43242e54b8dcChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Result, 298815e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 298913c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner else if (Node->getOpcode() == ISD::ZERO_EXTEND) 299023993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 299123993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 29928b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 29938b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 29948b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 299535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: 299635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = ExpandBIT_CONVERT(Node->getValueType(0), Node->getOperand(0)); 299735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = PromoteOp(Result); 299835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 299935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 30008b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_EXTEND: 30018b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(0 && "Case not implemented. Dynamically dead with 2 FP types!"); 30028b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_ROUND: 30038b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 30048b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: assert(0 && "BUG: Cannot expand FP regs!"); 30058b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: assert(0 && "Unreachable with 2 FP types!"); 30068b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 30078b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Input is legal? Do an FP_ROUND_INREG. 3008456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Node->getOperand(0), 300915e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 30108b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 30118b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 30128b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 30138b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 30148b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SINT_TO_FP: 30158b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UINT_TO_FP: 30168b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 30178b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 301877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // No extra round required here. 3019456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Node->getOperand(0)); 30208b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 30218b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 30228b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 30238b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = PromoteOp(Node->getOperand(0)); 30248b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (Node->getOpcode() == ISD::SINT_TO_FP) 30258b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 302615e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result, 302715e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 30288b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner else 302923993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 303023993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 303177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // No extra round required here. 303277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Result); 30338b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 30348b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: 303577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Result = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, NVT, 303677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Node->getOperand(0)); 303777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // Round if we cannot tolerate excess precision. 303877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner if (NoExcessFPPrecision) 303915e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 304015e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 304177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner break; 30428b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 30438b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 30448b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 30455e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner case ISD::SIGN_EXTEND_INREG: 30465e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Result = PromoteOp(Node->getOperand(0)); 30475e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Result, 30485e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Node->getOperand(1)); 30495e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner break; 30508b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_TO_SINT: 30518b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_TO_UINT: 30528b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 30538b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 3054456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Node->getOperand(0); 30558b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 30568b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 30578b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input result is prerounded, so we don't have to do anything 30588b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // special. 30598b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 30608b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 30618b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: 30628b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(0 && "not implemented"); 30638b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 3064d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // If we're promoting a UINT to a larger size, check to see if the new node 3065d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // will be legal. If it isn't, check to see if FP_TO_SINT is legal, since 3066d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // we can use that instead. This allows us to generate better code for 3067d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // FP_TO_UINT for small destination sizes on targets where FP_TO_UINT is not 3068d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // legal, such as PowerPC. 3069d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman if (Node->getOpcode() == ISD::FP_TO_UINT && 3070c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner !TLI.isOperationLegal(ISD::FP_TO_UINT, NVT) && 3071b7f6ef12f682c7068ca7513e088177a0d1046b35Nate Begeman (TLI.isOperationLegal(ISD::FP_TO_SINT, NVT) || 3072b7f6ef12f682c7068ca7513e088177a0d1046b35Nate Begeman TLI.getOperationAction(ISD::FP_TO_SINT, NVT)==TargetLowering::Custom)){ 3073d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Result = DAG.getNode(ISD::FP_TO_SINT, NVT, Tmp1); 3074d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } else { 3075d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 3076d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } 30778b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 30788b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 30792c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FABS: 30802c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FNEG: 30812c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 30822c8086f4b9916b2d02842be5e375276023225fbaChris Lattner assert(Tmp1.getValueType() == NVT); 30832c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 30842c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // NOTE: we do not have to do any extra rounding here for 30852c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // NoExcessFPPrecision, because we know the input will have the appropriate 30862c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // precision, and these operations don't modify precision at all. 30872c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 30882c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 3089da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSQRT: 3090da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSIN: 3091da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FCOS: 3092da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3093da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner assert(Tmp1.getValueType() == NVT); 3094da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 3095456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (NoExcessFPPrecision) 309615e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 309715e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 3098da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner break; 3099da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner 310003c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::AND: 310103c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::OR: 310203c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::XOR: 31030f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::ADD: 31048b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SUB: 31050f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::MUL: 31060f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner // The input may have strange things in the top bits of the registers, but 310701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // these operations don't care. They may have weird bits going out, but 31080f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner // that too is okay if they are integer operations. 31090f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 31100f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 31110f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner assert(Tmp1.getValueType() == NVT && Tmp2.getValueType() == NVT); 31120f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 311301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner break; 311401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FADD: 311501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FSUB: 311601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FMUL: 311701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 311801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 311901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner assert(Tmp1.getValueType() == NVT && Tmp2.getValueType() == NVT); 312001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 312101b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner 312201b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // Floating point operations will give excess precision that we may not be 312301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // able to tolerate. If we DO allow excess precision, just leave it, 312401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // otherwise excise it. 31258b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // FIXME: Why would we need to round FP ops more than integer ones? 31268b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Is Round(Add(Add(A,B),C)) != Round(Add(Round(Add(A,B)), C)) 312701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner if (NoExcessFPPrecision) 312815e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 312915e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 31300f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner break; 31310f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner 31328b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SDIV: 31338b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SREM: 31348b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // These operators require that their input be sign extended. 31358b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 31368b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 31378b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (MVT::isInteger(NVT)) { 313815e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 313915e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 314015e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp2 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp2, 314115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 31428b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 31438b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 31448b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 31458b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Perform FP_ROUND: this is probably overly pessimistic. 31468b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (MVT::isFloatingPoint(NVT) && NoExcessFPPrecision) 314715e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 314815e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 31498b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 315001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FDIV: 315101b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FREM: 3152a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case ISD::FCOPYSIGN: 315301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // These operators require that their input be fp extended. 3154ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman switch (getTypeAction(Node->getOperand(0).getValueType())) { 3155ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Legal: 3156ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); 3157ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman break; 3158ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Promote: 3159ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman Tmp1 = PromoteOp(Node->getOperand(0)); 3160ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman break; 3161ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Expand: 3162ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman assert(0 && "not implemented"); 3163ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman } 3164ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman switch (getTypeAction(Node->getOperand(1).getValueType())) { 3165ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Legal: 3166ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); 3167ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman break; 3168ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Promote: 3169ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman Tmp2 = PromoteOp(Node->getOperand(1)); 3170ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman break; 3171ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Expand: 3172ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman assert(0 && "not implemented"); 3173ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman } 317401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 317501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner 317601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // Perform FP_ROUND: this is probably overly pessimistic. 3177a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner if (NoExcessFPPrecision && Node->getOpcode() != ISD::FCOPYSIGN) 317801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 317901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner DAG.getValueType(VT)); 318001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner break; 31818b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 31828b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UDIV: 31838b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UREM: 31848b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // These operators require that their input be zero extended. 31858b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 31868b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 31878b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(MVT::isInteger(NVT) && "Operators don't apply to FP!"); 318823993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 318923993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp2 = DAG.getZeroExtendInReg(Tmp2, VT); 31908b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 31918b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 31928b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 31938b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SHL: 31948b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3195456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SHL, NVT, Tmp1, Node->getOperand(1)); 31968b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 31978b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SRA: 31988b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input value must be properly sign extended. 31998b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 320015e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 320115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 3202456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRA, NVT, Tmp1, Node->getOperand(1)); 32038b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 32048b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SRL: 32058b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input value must be properly zero extended. 32068b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 320723993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 3208456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRL, NVT, Tmp1, Node->getOperand(1)); 32098b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 32100aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman 32110aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman case ISD::VAARG: 3212456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Node->getOperand(0); // Get the chain. 3213456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = Node->getOperand(1); // Get the pointer. 32140aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman if (TLI.getOperationAction(ISD::VAARG, VT) == TargetLowering::Custom) { 32150aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Tmp3 = DAG.getVAArg(VT, Tmp1, Tmp2, Node->getOperand(2)); 32160aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Result = TLI.CustomPromoteOperation(Tmp3, DAG); 32170aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman } else { 3218466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SrcValueSDNode *SV = cast<SrcValueSDNode>(Node->getOperand(2)); 32190aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman SDOperand VAList = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp2, 3220466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SV->getValue(), SV->getOffset()); 32210aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Increment the pointer, VAList, to the next vaarg 32220aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Tmp3 = DAG.getNode(ISD::ADD, TLI.getPointerTy(), VAList, 32230aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman DAG.getConstant(MVT::getSizeInBits(VT)/8, 32240aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman TLI.getPointerTy())); 32250aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Store the incremented VAList to the legalized pointer 3226786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng Tmp3 = DAG.getStore(VAList.getValue(1), Tmp3, Tmp2, Node->getOperand(2)); 32270aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Load the actual argument out of the pointer VAList 3228466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getExtLoad(ISD::EXTLOAD, NVT, Tmp3, VAList, NULL, 0, VT); 32290aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman } 32300aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Remember that we legalized the chain. 3231456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 32320aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman break; 32330aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman 3234466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case ISD::LOAD: { 3235466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LoadSDNode *LD = cast<LoadSDNode>(Node); 323662f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng ISD::LoadExtType ExtType = ISD::isNON_EXTLoad(Node) 323762f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng ? ISD::EXTLOAD : LD->getExtensionType(); 323862f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng Result = DAG.getExtLoad(ExtType, NVT, 323962f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng LD->getChain(), LD->getBasePtr(), 324055b5708b6bbffc79cf133c31faa51d144bfc5d4aChris Lattner LD->getSrcValue(), LD->getSrcValueOffset(), 324155b5708b6bbffc79cf133c31faa51d144bfc5d4aChris Lattner LD->getLoadVT()); 32424c8f8f0481b26818d7810a6a585e7ecf52973e93Chris Lattner // Remember that we legalized the chain. 3243456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 32444c8f8f0481b26818d7810a6a585e7ecf52973e93Chris Lattner break; 3245466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 324603c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::SELECT: 324703c8546ec57523970874917854a2fb77b1ff598eChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Legalize the op0 324803c8546ec57523970874917854a2fb77b1ff598eChris Lattner Tmp3 = PromoteOp(Node->getOperand(2)); // Legalize the op1 3249456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), Tmp2, Tmp3); 325003c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 32519373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case ISD::SELECT_CC: 32529373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2 = PromoteOp(Node->getOperand(2)); // True 32539373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp3 = PromoteOp(Node->getOperand(3)); // False 32549373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 3255456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Node->getOperand(1), Tmp2, Tmp3, Node->getOperand(4)); 32569373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 3257d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: 3258d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = Node->getOperand(0); 3259d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 3260d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = DAG.getNode(ISD::BSWAP, NVT, Tmp1); 3261d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Result = DAG.getNode(ISD::SRL, NVT, Tmp1, 3262d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman DAG.getConstant(getSizeInBits(NVT) - getSizeInBits(VT), 3263d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman TLI.getShiftAmountTy())); 3264d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 3265fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTPOP: 3266fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTTZ: 3267fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTLZ: 3268456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Zero extend the argument 3269456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Node->getOperand(0)); 3270fecf095292991bdf9396fec474011446107f9813Andrew Lenharth // Perform the larger operation, then subtract if needed. 3271fecf095292991bdf9396fec474011446107f9813Andrew Lenharth Tmp1 = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 3272456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch(Node->getOpcode()) { 3273fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTPOP: 3274fecf095292991bdf9396fec474011446107f9813Andrew Lenharth Result = Tmp1; 3275fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 3276fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTTZ: 3277456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // if Tmp1 == sizeinbits(NVT) then Tmp1 = sizeinbits(Old VT) 3278d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), Tmp1, 32797cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner DAG.getConstant(getSizeInBits(NVT), NVT), ISD::SETEQ); 328000b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SELECT, NVT, Tmp2, 3281456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner DAG.getConstant(getSizeInBits(VT), NVT), Tmp1); 3282fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 3283fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTLZ: 3284fecf095292991bdf9396fec474011446107f9813Andrew Lenharth //Tmp1 = Tmp1 - (sizeinbits(NVT) - sizeinbits(Old VT)) 328500b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SUB, NVT, Tmp1, 328600b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen DAG.getConstant(getSizeInBits(NVT) - 3287fecf095292991bdf9396fec474011446107f9813Andrew Lenharth getSizeInBits(VT), NVT)); 3288fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 3289fecf095292991bdf9396fec474011446107f9813Andrew Lenharth } 3290fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 32911597221eace1c53ce5f84a7018397497d11a8393Chris Lattner case ISD::VEXTRACT_VECTOR_ELT: 32921597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Result = PromoteOp(LowerVEXTRACT_VECTOR_ELT(Op)); 32931597221eace1c53ce5f84a7018397497d11a8393Chris Lattner break; 32944aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner case ISD::EXTRACT_VECTOR_ELT: 32954aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner Result = PromoteOp(ExpandEXTRACT_VECTOR_ELT(Op)); 32964aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner break; 329703c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 329803c8546ec57523970874917854a2fb77b1ff598eChris Lattner 329903c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(Result.Val && "Didn't set a result!"); 3300456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 3301456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Make sure the result is itself legal. 3302456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Result); 3303456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 3304456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Remember that we promoted this! 330503c8546ec57523970874917854a2fb77b1ff598eChris Lattner AddPromotedOperand(Op, Result); 330603c8546ec57523970874917854a2fb77b1ff598eChris Lattner return Result; 330703c8546ec57523970874917854a2fb77b1ff598eChris Lattner} 33083e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 33091597221eace1c53ce5f84a7018397497d11a8393Chris Lattner/// LowerVEXTRACT_VECTOR_ELT - Lower a VEXTRACT_VECTOR_ELT operation into a 33101597221eace1c53ce5f84a7018397497d11a8393Chris Lattner/// EXTRACT_VECTOR_ELT operation, to memory operations, or to scalar code based 33111597221eace1c53ce5f84a7018397497d11a8393Chris Lattner/// on the vector type. The return type of this matches the element type of the 33121597221eace1c53ce5f84a7018397497d11a8393Chris Lattner/// vector, which may not be legal for the target. 33131597221eace1c53ce5f84a7018397497d11a8393Chris LattnerSDOperand SelectionDAGLegalize::LowerVEXTRACT_VECTOR_ELT(SDOperand Op) { 33141597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // We know that operand #0 is the Vec vector. If the index is a constant 33151597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // or if the invec is a supported hardware type, we can use it. Otherwise, 33161597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // lower to a store then an indexed load. 33171597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SDOperand Vec = Op.getOperand(0); 33181597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SDOperand Idx = LegalizeOp(Op.getOperand(1)); 33191597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 33201597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SDNode *InVal = Vec.Val; 33211597221eace1c53ce5f84a7018397497d11a8393Chris Lattner unsigned NumElems = cast<ConstantSDNode>(*(InVal->op_end()-2))->getValue(); 33221597221eace1c53ce5f84a7018397497d11a8393Chris Lattner MVT::ValueType EVT = cast<VTSDNode>(*(InVal->op_end()-1))->getVT(); 33231597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 33241597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // Figure out if there is a Packed type corresponding to this Vector 33251597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // type. If so, convert to the packed type. 33261597221eace1c53ce5f84a7018397497d11a8393Chris Lattner MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 33271597221eace1c53ce5f84a7018397497d11a8393Chris Lattner if (TVT != MVT::Other && TLI.isTypeLegal(TVT)) { 33281597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // Turn this into a packed extract_vector_elt operation. 33291597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Vec = PackVectorOp(Vec, TVT); 33301597221eace1c53ce5f84a7018397497d11a8393Chris Lattner return DAG.getNode(ISD::EXTRACT_VECTOR_ELT, Op.getValueType(), Vec, Idx); 33311597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } else if (NumElems == 1) { 33321597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // This must be an access of the only element. Return it. 33331597221eace1c53ce5f84a7018397497d11a8393Chris Lattner return PackVectorOp(Vec, EVT); 33341597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } else if (ConstantSDNode *CIdx = dyn_cast<ConstantSDNode>(Idx)) { 33351597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SDOperand Lo, Hi; 33361597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SplitVectorOp(Vec, Lo, Hi); 33371597221eace1c53ce5f84a7018397497d11a8393Chris Lattner if (CIdx->getValue() < NumElems/2) { 33381597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Vec = Lo; 33391597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } else { 33401597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Vec = Hi; 33411597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Idx = DAG.getConstant(CIdx->getValue() - NumElems/2, Idx.getValueType()); 33421597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } 33431597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 33441597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // It's now an extract from the appropriate high or low part. Recurse. 33451597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 33461597221eace1c53ce5f84a7018397497d11a8393Chris Lattner return LowerVEXTRACT_VECTOR_ELT(Op); 33471597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } else { 33481597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // Variable index case for extract element. 33491597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // FIXME: IMPLEMENT STORE/LOAD lowering. Need alignment of stack slot!! 33501597221eace1c53ce5f84a7018397497d11a8393Chris Lattner assert(0 && "unimp!"); 33511597221eace1c53ce5f84a7018397497d11a8393Chris Lattner return SDOperand(); 33521597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } 33531597221eace1c53ce5f84a7018397497d11a8393Chris Lattner} 33541597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 33554aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner/// ExpandEXTRACT_VECTOR_ELT - Expand an EXTRACT_VECTOR_ELT operation into 33564aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner/// memory traffic. 33574aab2f4ab50d2b04dc559c7b197f1de7612c896bChris LattnerSDOperand SelectionDAGLegalize::ExpandEXTRACT_VECTOR_ELT(SDOperand Op) { 33584aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner SDOperand Vector = Op.getOperand(0); 33594aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner SDOperand Idx = Op.getOperand(1); 33604aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner 33614aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner // If the target doesn't support this, store the value to a temporary 33624aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner // stack slot, then LOAD the scalar element back out. 33634aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner SDOperand StackPtr = CreateStackTemporary(Vector.getValueType()); 3364786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng SDOperand Ch = DAG.getStore(DAG.getEntryNode(), 3365786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng Vector, StackPtr, DAG.getSrcValue(NULL)); 33664aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner 33674aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner // Add the offset to the index. 33684aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner unsigned EltSize = MVT::getSizeInBits(Op.getValueType())/8; 33694aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner Idx = DAG.getNode(ISD::MUL, Idx.getValueType(), Idx, 33704aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner DAG.getConstant(EltSize, Idx.getValueType())); 33714aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner StackPtr = DAG.getNode(ISD::ADD, Idx.getValueType(), Idx, StackPtr); 33724aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner 3373466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return DAG.getLoad(Op.getValueType(), Ch, StackPtr, NULL, 0); 33744aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner} 33754aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner 33761597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 3377750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// LegalizeSetCCOperands - Attempts to create a legal LHS and RHS for a SETCC 3378750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// with condition CC on the current target. This usually involves legalizing 3379750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// or promoting the arguments. In the case where LHS and RHS must be expanded, 3380750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// there may be no choice but to create a new SetCC node to represent the 3381750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// legalized value of setcc lhs, rhs. In this case, the value is returned in 3382750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// LHS, and the SDOperand returned in RHS has a nil SDNode value. 3383750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begemanvoid SelectionDAGLegalize::LegalizeSetCCOperands(SDOperand &LHS, 3384750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand &RHS, 3385750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand &CC) { 3386750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand Tmp1, Tmp2, Result; 3387750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 3388750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (getTypeAction(LHS.getValueType())) { 3389750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case Legal: 3390750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = LegalizeOp(LHS); // LHS 3391750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = LegalizeOp(RHS); // RHS 3392750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 3393750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case Promote: 3394750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = PromoteOp(LHS); // LHS 3395750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = PromoteOp(RHS); // RHS 3396750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 3397750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If this is an FP compare, the operands have already been extended. 3398750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (MVT::isInteger(LHS.getValueType())) { 3399750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman MVT::ValueType VT = LHS.getValueType(); 3400750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman MVT::ValueType NVT = TLI.getTypeToTransformTo(VT); 3401750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 3402750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Otherwise, we have to insert explicit sign or zero extends. Note 3403750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // that we could insert sign extends for ALL conditions, but zero extend 3404750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // is cheaper on many machines (an AND instead of two shifts), so prefer 3405750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // it. 3406750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (cast<CondCodeSDNode>(CC)->get()) { 3407750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "Unknown integer comparison!"); 3408750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETEQ: 3409750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETNE: 3410750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGE: 3411750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGT: 3412750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULE: 3413750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULT: 3414750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // ALL of these operations will work if we either sign or zero extend 3415750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the operands (including the unsigned comparisons!). Zero extend is 3416750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // usually a simpler/cheaper operation, so prefer it. 3417750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 3418750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getZeroExtendInReg(Tmp2, VT); 3419750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 3420750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGE: 3421750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGT: 3422750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLT: 3423750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLE: 3424750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 3425750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman DAG.getValueType(VT)); 3426750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp2, 3427750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman DAG.getValueType(VT)); 3428750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 3429750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 3430750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 3431750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 3432750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case Expand: 3433750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand LHSLo, LHSHi, RHSLo, RHSHi; 3434750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman ExpandOp(LHS, LHSLo, LHSHi); 3435750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman ExpandOp(RHS, RHSLo, RHSHi); 3436750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (cast<CondCodeSDNode>(CC)->get()) { 3437750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETEQ: 3438750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETNE: 3439750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (RHSLo == RHSHi) 3440750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (ConstantSDNode *RHSCST = dyn_cast<ConstantSDNode>(RHSLo)) 3441750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (RHSCST->isAllOnesValue()) { 3442750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Comparison to -1. 3443750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::AND, LHSLo.getValueType(), LHSLo, LHSHi); 3444750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = RHSLo; 3445750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 3446750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 3447750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 3448750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::XOR, LHSLo.getValueType(), LHSLo, RHSLo); 3449750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getNode(ISD::XOR, LHSLo.getValueType(), LHSHi, RHSHi); 3450750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::OR, Tmp1.getValueType(), Tmp1, Tmp2); 3451750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getConstant(0, Tmp1.getValueType()); 3452750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 3453750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: 3454750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If this is a comparison of the sign bit, just look at the top part. 3455750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // X > -1, x < 0 3456750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (ConstantSDNode *CST = dyn_cast<ConstantSDNode>(RHS)) 3457750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if ((cast<CondCodeSDNode>(CC)->get() == ISD::SETLT && 3458750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CST->getValue() == 0) || // X < 0 3459750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman (cast<CondCodeSDNode>(CC)->get() == ISD::SETGT && 3460750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CST->isAllOnesValue())) { // X > -1 3461750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = LHSHi; 3462750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = RHSHi; 3463750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 3464750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 3465750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 3466750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // FIXME: This generated code sucks. 3467750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman ISD::CondCode LowCC; 3468750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (cast<CondCodeSDNode>(CC)->get()) { 3469750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "Unknown integer setcc!"); 3470750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLT: 3471750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULT: LowCC = ISD::SETULT; break; 3472750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGT: 3473750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGT: LowCC = ISD::SETUGT; break; 3474750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLE: 3475750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULE: LowCC = ISD::SETULE; break; 3476750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGE: 3477750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGE: LowCC = ISD::SETUGE; break; 3478750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 3479750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 3480750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Tmp1 = lo(op1) < lo(op2) // Always unsigned comparison 3481750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Tmp2 = hi(op1) < hi(op2) // Signedness depends on operands 3482750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // dest = hi(op1) == hi(op2) ? Tmp1 : Tmp2; 3483750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 3484750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // NOTE: on targets without efficient SELECT of bools, we can always use 3485750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // this identity: (B1 ? B2 : B3) --> (B1 & B2)|(!B1&B3) 3486750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getSetCC(TLI.getSetCCResultTy(), LHSLo, RHSLo, LowCC); 3487750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultTy(), LHSHi, RHSHi, CC); 3488750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = DAG.getSetCC(TLI.getSetCCResultTy(), LHSHi, RHSHi, ISD::SETEQ); 3489750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = LegalizeOp(DAG.getNode(ISD::SELECT, Tmp1.getValueType(), 3490750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result, Tmp1, Tmp2)); 3491750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = Result; 3492da06e9e665a1a94886541ed85e97315f58b357b0Nate Begeman Tmp2 = SDOperand(); 3493750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 3494750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 3495750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LHS = Tmp1; 3496750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman RHS = Tmp2; 3497750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman} 3498750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 349935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner/// ExpandBIT_CONVERT - Expand a BIT_CONVERT node into a store/load combination. 3500232348d66fcfe8f42f8b14cfacd2df3d00d2596eChris Lattner/// The resultant code need not be legal. Note that SrcOp is the input operand 3501232348d66fcfe8f42f8b14cfacd2df3d00d2596eChris Lattner/// to the BIT_CONVERT, not the BIT_CONVERT node itself. 350235481892da1e5634bf497c8a0cabb1bb5a8b8fefChris LattnerSDOperand SelectionDAGLegalize::ExpandBIT_CONVERT(MVT::ValueType DestVT, 350335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner SDOperand SrcOp) { 350435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Create the stack frame object. 3505ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand FIPtr = CreateStackTemporary(DestVT); 350635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 350735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Emit a store to the stack slot. 3508786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng SDOperand Store = DAG.getStore(DAG.getEntryNode(), 3509786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng SrcOp, FIPtr, DAG.getSrcValue(NULL)); 351035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Result is a load from the stack slot. 3511466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return DAG.getLoad(DestVT, Store, FIPtr, NULL, 0); 351235481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner} 351335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 35144352cc9e217e4482ad53f5a7b92c3543f569eb6eChris LattnerSDOperand SelectionDAGLegalize::ExpandSCALAR_TO_VECTOR(SDNode *Node) { 35154352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Create a vector sized/aligned stack slot, store the value to element #0, 35164352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // then load the whole vector back out. 35174352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner SDOperand StackPtr = CreateStackTemporary(Node->getValueType(0)); 3518786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng SDOperand Ch = DAG.getStore(DAG.getEntryNode(), Node->getOperand(0), StackPtr, 3519786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng DAG.getSrcValue(NULL)); 3520466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return DAG.getLoad(Node->getValueType(0), Ch, StackPtr, NULL, 0); 35214352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner} 35224352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 35234352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 3524ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner/// ExpandBUILD_VECTOR - Expand a BUILD_VECTOR node on targets that don't 3525ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner/// support the operation, but do support the resultant packed vector type. 3526ce87215131efcc68dcf7fca61055ad783a7aeb0eChris LattnerSDOperand SelectionDAGLegalize::ExpandBUILD_VECTOR(SDNode *Node) { 3527ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 3528ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // If the only non-undef value is the low element, turn this into a 352987100e0b83b808757bf44dabecd1d1048255d1adChris Lattner // SCALAR_TO_VECTOR node. If this is { X, X, X, X }, determine X. 3530033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng unsigned NumElems = Node->getNumOperands(); 3531ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner bool isOnlyLowElement = true; 353287100e0b83b808757bf44dabecd1d1048255d1adChris Lattner SDOperand SplatValue = Node->getOperand(0); 3533033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng std::map<SDOperand, std::vector<unsigned> > Values; 3534033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng Values[SplatValue].push_back(0); 35352eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner bool isConstant = true; 35362eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (!isa<ConstantFPSDNode>(SplatValue) && !isa<ConstantSDNode>(SplatValue) && 35372eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SplatValue.getOpcode() != ISD::UNDEF) 35382eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner isConstant = false; 35392eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 3540033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (unsigned i = 1; i < NumElems; ++i) { 3541033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng SDOperand V = Node->getOperand(i); 354289a1b380a475cbe477e50ff4b94335596b37f21aChris Lattner Values[V].push_back(i); 3543033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (V.getOpcode() != ISD::UNDEF) 3544ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner isOnlyLowElement = false; 3545033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (SplatValue != V) 354687100e0b83b808757bf44dabecd1d1048255d1adChris Lattner SplatValue = SDOperand(0,0); 35472eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 35482eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If this isn't a constant element or an undef, we can't use a constant 35492eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // pool load. 35502eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (!isa<ConstantFPSDNode>(V) && !isa<ConstantSDNode>(V) && 35512eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner V.getOpcode() != ISD::UNDEF) 35522eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner isConstant = false; 3553ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 3554ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 3555ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (isOnlyLowElement) { 3556ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // If the low element is an undef too, then this whole things is an undef. 3557ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (Node->getOperand(0).getOpcode() == ISD::UNDEF) 3558ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner return DAG.getNode(ISD::UNDEF, Node->getValueType(0)); 3559ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Otherwise, turn this into a scalar_to_vector node. 3560ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner return DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), 3561ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Node->getOperand(0)); 3562ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 3563ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 35642eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If all elements are constants, create a load from the constant pool. 3565ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (isConstant) { 3566ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::ValueType VT = Node->getValueType(0); 3567ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner const Type *OpNTy = 3568ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::getTypeForValueType(Node->getOperand(0).getValueType()); 3569ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner std::vector<Constant*> CV; 3570033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (unsigned i = 0, e = NumElems; i != e; ++i) { 3571ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (ConstantFPSDNode *V = 3572ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner dyn_cast<ConstantFPSDNode>(Node->getOperand(i))) { 3573ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner CV.push_back(ConstantFP::get(OpNTy, V->getValue())); 3574ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } else if (ConstantSDNode *V = 3575ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner dyn_cast<ConstantSDNode>(Node->getOperand(i))) { 3576ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner CV.push_back(ConstantUInt::get(OpNTy, V->getValue())); 3577ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } else { 3578ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner assert(Node->getOperand(i).getOpcode() == ISD::UNDEF); 3579ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner CV.push_back(UndefValue::get(OpNTy)); 3580ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 3581ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 3582ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Constant *CP = ConstantPacked::get(CV); 3583ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand CPIdx = DAG.getConstantPool(CP, TLI.getPointerTy()); 3584466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return DAG.getLoad(VT, DAG.getEntryNode(), CPIdx, NULL, 0); 3585ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 35862eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 35872eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (SplatValue.Val) { // Splat of one value? 35882eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Build the shuffle constant vector: <0, 0, 0, 0> 35892eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner MVT::ValueType MaskVT = 35902eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner MVT::getIntVectorWithNumElements(NumElems); 35912eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SDOperand Zero = DAG.getConstant(0, MVT::getVectorBaseType(MaskVT)); 35922eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner std::vector<SDOperand> ZeroVec(NumElems, Zero); 3593bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand SplatMask = DAG.getNode(ISD::BUILD_VECTOR, MaskVT, 3594bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &ZeroVec[0], ZeroVec.size()); 3595033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 35962eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If the target supports VECTOR_SHUFFLE and this shuffle mask, use it. 35974352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (isShuffleLegal(Node->getValueType(0), SplatMask)) { 35982eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Get the splatted value into the low element of a vector register. 35992eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SDOperand LowValVec = 36002eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), SplatValue); 36012eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 36022eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Return shuffle(LowValVec, undef, <0,0,0,0>) 36032eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner return DAG.getNode(ISD::VECTOR_SHUFFLE, Node->getValueType(0), LowValVec, 36042eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner DAG.getNode(ISD::UNDEF, Node->getValueType(0)), 36052eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SplatMask); 36062eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner } 36072eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner } 36082eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 3609033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // If there are only two unique elements, we may be able to turn this into a 3610033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // vector shuffle. 3611033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (Values.size() == 2) { 3612033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // Build the shuffle constant vector: e.g. <0, 4, 0, 4> 3613033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng MVT::ValueType MaskVT = 3614033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng MVT::getIntVectorWithNumElements(NumElems); 3615033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng std::vector<SDOperand> MaskVec(NumElems); 3616033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng unsigned i = 0; 3617033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (std::map<SDOperand,std::vector<unsigned> >::iterator I=Values.begin(), 3618033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng E = Values.end(); I != E; ++I) { 3619033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (std::vector<unsigned>::iterator II = I->second.begin(), 3620033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng EE = I->second.end(); II != EE; ++II) 3621033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng MaskVec[*II] = DAG.getConstant(i, MVT::getVectorBaseType(MaskVT)); 3622033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng i += NumElems; 3623033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 3624bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand ShuffleMask = DAG.getNode(ISD::BUILD_VECTOR, MaskVT, 3625bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &MaskVec[0], MaskVec.size()); 3626033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 3627033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // If the target supports VECTOR_SHUFFLE and this shuffle mask, use it. 36284352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (TLI.isOperationLegal(ISD::SCALAR_TO_VECTOR, Node->getValueType(0)) && 36294352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner isShuffleLegal(Node->getValueType(0), ShuffleMask)) { 3630bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Ops; 3631033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for(std::map<SDOperand,std::vector<unsigned> >::iterator I=Values.begin(), 3632033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng E = Values.end(); I != E; ++I) { 3633033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng SDOperand Op = DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), 3634033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng I->first); 3635033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng Ops.push_back(Op); 3636033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 3637033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng Ops.push_back(ShuffleMask); 3638033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 3639033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // Return shuffle(LoValVec, HiValVec, <0,1,0,1>) 3640bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner return DAG.getNode(ISD::VECTOR_SHUFFLE, Node->getValueType(0), 3641bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &Ops[0], Ops.size()); 3642033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 3643033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 3644ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 3645ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Otherwise, we can't handle this case efficiently. Allocate a sufficiently 3646ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // aligned object on the stack, store each element into it, then load 3647ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // the result as a vector. 3648ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::ValueType VT = Node->getValueType(0); 3649ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Create the stack frame object. 3650ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand FIPtr = CreateStackTemporary(VT); 3651ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 3652ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Emit a store of each element to the stack slot. 3653bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Stores; 3654ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner unsigned TypeByteSize = 3655ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::getSizeInBits(Node->getOperand(0).getValueType())/8; 3656ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner unsigned VectorSize = MVT::getSizeInBits(VT)/8; 3657ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Store (in the right endianness) the elements to memory. 3658ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 3659ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Ignore undef elements. 3660ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (Node->getOperand(i).getOpcode() == ISD::UNDEF) continue; 3661ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 3662841c882f5dae8c953ea99b5824108313549cfaf8Chris Lattner unsigned Offset = TypeByteSize*i; 3663ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 3664ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand Idx = DAG.getConstant(Offset, FIPtr.getValueType()); 3665ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Idx = DAG.getNode(ISD::ADD, FIPtr.getValueType(), FIPtr, Idx); 3666ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 3667786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng Stores.push_back(DAG.getStore(DAG.getEntryNode(), Node->getOperand(i), Idx, 3668786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng DAG.getSrcValue(NULL))); 3669ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 3670ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 3671ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand StoreChain; 3672ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (!Stores.empty()) // Not all undef elements? 3673bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner StoreChain = DAG.getNode(ISD::TokenFactor, MVT::Other, 3674bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &Stores[0], Stores.size()); 3675ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner else 3676ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner StoreChain = DAG.getEntryNode(); 3677ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 3678ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Result is a load from the stack slot. 3679466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return DAG.getLoad(VT, StoreChain, FIPtr, NULL, 0); 3680ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner} 3681ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 3682ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner/// CreateStackTemporary - Create a stack temporary, suitable for holding the 3683ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner/// specified value type. 3684ce87215131efcc68dcf7fca61055ad783a7aeb0eChris LattnerSDOperand SelectionDAGLegalize::CreateStackTemporary(MVT::ValueType VT) { 3685ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MachineFrameInfo *FrameInfo = DAG.getMachineFunction().getFrameInfo(); 3686ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner unsigned ByteSize = MVT::getSizeInBits(VT)/8; 3687ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner int FrameIdx = FrameInfo->CreateStackObject(ByteSize, ByteSize); 3688ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner return DAG.getFrameIndex(FrameIdx, TLI.getPointerTy()); 3689ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner} 3690ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 36915b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattnervoid SelectionDAGLegalize::ExpandShiftParts(unsigned NodeOp, 36925b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand Op, SDOperand Amt, 36935b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand &Lo, SDOperand &Hi) { 36945b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner // Expand the subcomponents. 36955b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand LHSL, LHSH; 36965b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner ExpandOp(Op, LHSL, LHSH); 36975b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 3698bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand Ops[] = { LHSL, LHSH, Amt }; 3699f9f37fc52c444e34bad7846729ae5481a65e0a53Chris Lattner MVT::ValueType VT = LHSL.getValueType(); 3700f9f37fc52c444e34bad7846729ae5481a65e0a53Chris Lattner Lo = DAG.getNode(NodeOp, DAG.getNodeValueTypes(VT, VT), 2, Ops, 3); 37015b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner Hi = Lo.getValue(1); 37025b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner} 37035b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 37045b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 3705e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// ExpandShift - Try to find a clever way to expand this shift operation out to 3706e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// smaller elements. If we can't find a way that is more efficient than a 3707e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// libcall on this target, return false. Otherwise, return true with the 3708e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// low-parts expanded into Lo and Hi. 3709e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattnerbool SelectionDAGLegalize::ExpandShift(unsigned Opc, SDOperand Op,SDOperand Amt, 3710e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner SDOperand &Lo, SDOperand &Hi) { 3711e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner assert((Opc == ISD::SHL || Opc == ISD::SRA || Opc == ISD::SRL) && 3712e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner "This is not a shift!"); 3713f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman 3714e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner MVT::ValueType NVT = TLI.getTypeToTransformTo(Op.getValueType()); 3715f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman SDOperand ShAmt = LegalizeOp(Amt); 3716f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman MVT::ValueType ShTy = ShAmt.getValueType(); 3717f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman unsigned VTBits = MVT::getSizeInBits(Op.getValueType()); 3718f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman unsigned NVTBits = MVT::getSizeInBits(NVT); 3719f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman 3720f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman // Handle the case when Amt is an immediate. Other cases are currently broken 3721f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman // and are disabled. 3722f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (ConstantSDNode *CN = dyn_cast<ConstantSDNode>(Amt.Val)) { 3723f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman unsigned Cst = CN->getValue(); 3724f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman // Expand the incoming operand to be shifted, so that we have its parts 3725f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman SDOperand InL, InH; 3726f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman ExpandOp(Op, InL, InH); 3727f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman switch(Opc) { 3728f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SHL: 3729f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 3730f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 3731f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 3732f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 3733f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 3734f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SHL, NVT, InL, DAG.getConstant(Cst-NVTBits,ShTy)); 3735ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 3736ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = DAG.getConstant(0, NVT); 3737ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Hi = InL; 3738f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 3739f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::SHL, NVT, InL, DAG.getConstant(Cst, ShTy)); 3740f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::OR, NVT, 3741f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(Cst, ShTy)), 3742f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(NVTBits-Cst, ShTy))); 3743f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 3744f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 3745f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SRL: 3746f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 3747f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 3748f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 3749f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 3750f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::SRL, NVT, InH, DAG.getConstant(Cst-NVTBits,ShTy)); 3751f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 3752ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 3753ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = InH; 3754ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Hi = DAG.getConstant(0, NVT); 3755f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 3756f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::OR, NVT, 3757f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(Cst, ShTy)), 3758f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(NVTBits-Cst, ShTy))); 3759f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SRL, NVT, InH, DAG.getConstant(Cst, ShTy)); 3760f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 3761f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 3762f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SRA: 3763f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 3764edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = Lo = DAG.getNode(ISD::SRA, NVT, InH, 3765f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(NVTBits-1, ShTy)); 3766f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 3767edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Lo = DAG.getNode(ISD::SRA, NVT, InH, 3768f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(Cst-NVTBits, ShTy)); 3769edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = DAG.getNode(ISD::SRA, NVT, InH, 3770f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(NVTBits-1, ShTy)); 3771ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 3772ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = InH; 3773edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = DAG.getNode(ISD::SRA, NVT, InH, 3774ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner DAG.getConstant(NVTBits-1, ShTy)); 3775f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 3776f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::OR, NVT, 3777f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(Cst, ShTy)), 3778f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(NVTBits-Cst, ShTy))); 3779f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SRA, NVT, InH, DAG.getConstant(Cst, ShTy)); 3780f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 3781f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 3782f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 3783f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 37840ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 37850ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Okay, the shift amount isn't constant. However, if we can tell that it is 37860ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // >= 32 or < 32, we can still simplify it, without knowing the actual value. 37870ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner uint64_t Mask = NVTBits, KnownZero, KnownOne; 37880ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner TLI.ComputeMaskedBits(Amt, Mask, KnownZero, KnownOne); 37890ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 37900ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // If we know that the high bit of the shift amount is one, then we can do 37910ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // this as a couple of simple shifts. 37920ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner if (KnownOne & Mask) { 37930ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Mask out the high bit, which we know is set. 37940ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Amt = DAG.getNode(ISD::AND, Amt.getValueType(), Amt, 37950ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getConstant(NVTBits-1, Amt.getValueType())); 37960ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 37970ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Expand the incoming operand to be shifted, so that we have its parts 37980ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner SDOperand InL, InH; 37990ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner ExpandOp(Op, InL, InH); 38000ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner switch(Opc) { 38010ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SHL: 38020ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getConstant(0, NVT); // Low part is zero. 38030ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SHL, NVT, InL, Amt); // High part from Lo part. 38040ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 38050ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRL: 38060ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getConstant(0, NVT); // Hi part is zero. 38070ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::SRL, NVT, InH, Amt); // Lo part from Hi part. 38080ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 38090ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRA: 38100ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, InH, // Sign extend high part. 38110ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getConstant(NVTBits-1, Amt.getValueType())); 38120ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::SRA, NVT, InH, Amt); // Lo part from Hi part. 38130ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 38140ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 38150ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 38160ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 38170ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // If we know that the high bit of the shift amount is zero, then we can do 38180ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // this as a couple of simple shifts. 38190ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner if (KnownZero & Mask) { 38200ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Compute 32-amt. 38210ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner SDOperand Amt2 = DAG.getNode(ISD::SUB, Amt.getValueType(), 38220ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getConstant(NVTBits, Amt.getValueType()), 38230ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Amt); 38240ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 38250ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Expand the incoming operand to be shifted, so that we have its parts 38260ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner SDOperand InL, InH; 38270ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner ExpandOp(Op, InL, InH); 38280ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner switch(Opc) { 38290ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SHL: 38300ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::SHL, NVT, InL, Amt); 38310ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::OR, NVT, 38320ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SHL, NVT, InH, Amt), 38330ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SRL, NVT, InL, Amt2)); 38340ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 38350ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRL: 38360ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SRL, NVT, InH, Amt); 38370ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::OR, NVT, 38380ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SRL, NVT, InL, Amt), 38390ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SHL, NVT, InH, Amt2)); 38400ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 38410ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRA: 38420ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, InH, Amt); 38430ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::OR, NVT, 38440ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SRL, NVT, InL, Amt), 38450ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SHL, NVT, InH, Amt2)); 38460ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 38470ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 38480ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 38490ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 3850f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return false; 3851e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner} 385277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner 38539c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner 385477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// ExpandLibCall - Expand a node into a call to a libcall. If the result value 385577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// does not fit into a register, return the lo part and set the hi part to the 385677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// by-reg argument. If it does fit into a single register, return the result 385777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// and leave the Hi part unset. 385877e77a6aa0ab25a812947aed477220dd11220a18Chris LattnerSDOperand SelectionDAGLegalize::ExpandLibCall(const char *Name, SDNode *Node, 385977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand &Hi) { 38606831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "Cannot overlap legalization of calls!"); 38616831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // The input chain to this libcall is the entry node of the function. 38626831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalizing the call will automatically add the previous call to the 38636831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // dependence. 38646831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand InChain = DAG.getEntryNode(); 38656831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 386677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner TargetLowering::ArgListTy Args; 386777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 386877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner MVT::ValueType ArgVT = Node->getOperand(i).getValueType(); 386977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner const Type *ArgTy = MVT::getTypeForValueType(ArgVT); 387077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Args.push_back(std::make_pair(Node->getOperand(i), ArgTy)); 387177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner } 387277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand Callee = DAG.getExternalSymbol(Name, TLI.getPointerTy()); 3873edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 38740d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner // Splice the libcall in wherever FindInputOutputChains tells us to. 387577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner const Type *RetTy = MVT::getTypeForValueType(Node->getValueType(0)); 38760d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner std::pair<SDOperand,SDOperand> CallInfo = 3877adf6a965a321372c640845407195594835921eb4Chris Lattner TLI.LowerCallTo(InChain, RetTy, false, CallingConv::C, false, 3878adf6a965a321372c640845407195594835921eb4Chris Lattner Callee, Args, DAG); 38790d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner 38806831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalize the call sequence, starting with the chain. This will advance 38816831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // the LastCALLSEQ_END to the legalized version of the CALLSEQ_END node that 38826831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // was added by LowerCallTo (guaranteeing proper serialization of calls). 38836831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(CallInfo.second); 388499c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner SDOperand Result; 38850d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner switch (getTypeAction(CallInfo.first.getValueType())) { 388677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner default: assert(0 && "Unknown thing"); 388777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case Legal: 3888456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = CallInfo.first; 388999c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner break; 389077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case Expand: 389199c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner ExpandOp(CallInfo.first, Result, Hi); 389299c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner break; 389377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner } 389422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Result; 389522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 389622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 389722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 389822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandIntToFP - Expand a [US]INT_TO_FP operation, assuming that the 389922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// destination type is legal. 390022cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize:: 390122cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerExpandIntToFP(bool isSigned, MVT::ValueType DestTy, SDOperand Source) { 390222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(isTypeLegal(DestTy) && "Destination type is not legal!"); 390322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(getTypeAction(Source.getValueType()) == Expand && 390422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner "This is not an expansion!"); 390522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(Source.getValueType() == MVT::i64 && "Only handle expand from i64!"); 390622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 390722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!isSigned) { 390822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(Source.getValueType() == MVT::i64 && 390922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner "This only works for 64-bit -> FP"); 391022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // The 64-bit value loaded will be incorrectly if the 'sign bit' of the 391122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // incoming integer is set. To handle this, we dynamically test to see if 391222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // it is set, and, if so, add a fudge factor. 391322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Lo, Hi; 391422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ExpandOp(Source, Lo, Hi); 391522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 391622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If this is unsigned, and not supported, first perform the conversion to 391722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // signed, then adjust the result if the sign bit is set. 391822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignedConv = ExpandIntToFP(true, DestTy, 391922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::BUILD_PAIR, Source.getValueType(), Lo, Hi)); 392022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 392122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignSet = DAG.getSetCC(TLI.getSetCCResultTy(), Hi, 392222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getConstant(0, Hi.getValueType()), 392322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ISD::SETLT); 392422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Zero = getIntPtrConstant(0), Four = getIntPtrConstant(4); 392522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CstOffset = DAG.getNode(ISD::SELECT, Zero.getValueType(), 392622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SignSet, Four, Zero); 392722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner uint64_t FF = 0x5f800000ULL; 392822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (TLI.isLittleEndian()) FF <<= 32; 392922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner static Constant *FudgeFactor = ConstantUInt::get(Type::ULongTy, FF); 393022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 393122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CPIdx = DAG.getConstantPool(FudgeFactor, TLI.getPointerTy()); 393222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner CPIdx = DAG.getNode(ISD::ADD, TLI.getPointerTy(), CPIdx, CstOffset); 393322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand FudgeInReg; 393422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestTy == MVT::f32) 3935466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng FudgeInReg = DAG.getLoad(MVT::f32, DAG.getEntryNode(), CPIdx, NULL, 0); 393622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner else { 393722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(DestTy == MVT::f64 && "Unexpected conversion"); 393822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner FudgeInReg = DAG.getExtLoad(ISD::EXTLOAD, MVT::f64, DAG.getEntryNode(), 3939466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng CPIdx, NULL, 0, MVT::f32); 394022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 394122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::FADD, DestTy, SignedConv, FudgeInReg); 394222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 394322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 394422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Check to see if the target has a custom way to lower this. If so, use it. 394522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::SINT_TO_FP, Source.getValueType())) { 394622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "This action not implemented for this operation!"); 394722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 394822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Expand: 394922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // This case is handled below. 395022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: { 395122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand NV = TLI.LowerOperation(DAG.getNode(ISD::SINT_TO_FP, DestTy, 395222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Source), DAG); 395322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (NV.Val) 395422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return LegalizeOp(NV); 395522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // The target decided this was legal after all 395622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 395722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 395822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 395922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Expand the source, then glue it back together for the call. We must expand 396022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // the source in case it is shared (this pass of legalize must traverse it). 396122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SrcLo, SrcHi; 396222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ExpandOp(Source, SrcLo, SrcHi); 396322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Source = DAG.getNode(ISD::BUILD_PAIR, Source.getValueType(), SrcLo, SrcHi); 396422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 396522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner const char *FnName = 0; 396622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestTy == MVT::f32) 396722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner FnName = "__floatdisf"; 396822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner else { 396922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(DestTy == MVT::f64 && "Unknown fp value type!"); 397022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner FnName = "__floatdidf"; 397122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 39726831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 39736831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Source = DAG.getNode(ISD::SINT_TO_FP, DestTy, Source); 39746831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand UnusedHiPart; 397525125697fb0a761da440b222671cf2d6d4deaeacChris Lattner return ExpandLibCall(FnName, Source.Val, UnusedHiPart); 397622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 397722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 397822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandLegalINT_TO_FP - This function is responsible for legalizing a 397922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// INT_TO_FP operation of the specified operand when the target requests that 398022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we expand it. At this point, we know that the result and operand types are 398122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target. 398222cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandLegalINT_TO_FP(bool isSigned, 398322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Op0, 398422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType DestVT) { 398522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (Op0.getValueType() == MVT::i32) { 398622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // simple 32-bit [signed|unsigned] integer to float/double expansion 398722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 398822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // get the stack frame index of a 8 byte buffer 398922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MachineFunction &MF = DAG.getMachineFunction(); 399022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner int SSFI = MF.getFrameInfo()->CreateStackObject(8, 8); 399122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // get address of 8 byte buffer 399222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand StackSlot = DAG.getFrameIndex(SSFI, TLI.getPointerTy()); 399322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // word offset constant for Hi/Lo address computation 399422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand WordOff = DAG.getConstant(sizeof(int), TLI.getPointerTy()); 399522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // set up Hi and Lo (into buffer) address based on endian 3996408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner SDOperand Hi = StackSlot; 3997408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner SDOperand Lo = DAG.getNode(ISD::ADD, TLI.getPointerTy(), StackSlot,WordOff); 3998408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner if (TLI.isLittleEndian()) 3999408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner std::swap(Hi, Lo); 4000408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner 400122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // if signed map to unsigned space 400222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Op0Mapped; 400322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (isSigned) { 400422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // constant used to invert sign bit (signed to unsigned mapping) 400522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignBit = DAG.getConstant(0x80000000u, MVT::i32); 400622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op0Mapped = DAG.getNode(ISD::XOR, MVT::i32, Op0, SignBit); 400722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } else { 400822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op0Mapped = Op0; 400922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 401022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // store the lo of the constructed double - based on integer input 4011786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng SDOperand Store1 = DAG.getStore(DAG.getEntryNode(), 4012786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng Op0Mapped, Lo, DAG.getSrcValue(NULL)); 401322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // initial hi portion of constructed double 401422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand InitialHi = DAG.getConstant(0x43300000u, MVT::i32); 401522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // store the hi of the constructed double - biased exponent 4016786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng SDOperand Store2=DAG.getStore(Store1, InitialHi, Hi, DAG.getSrcValue(NULL)); 401722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // load the constructed double 4018466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Load = DAG.getLoad(MVT::f64, Store2, StackSlot, NULL, 0); 401922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FP constant to bias correct the final result 402022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Bias = DAG.getConstantFP(isSigned ? 402122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner BitsToDouble(0x4330000080000000ULL) 402222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner : BitsToDouble(0x4330000000000000ULL), 402322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::f64); 402422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // subtract the bias 402522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Sub = DAG.getNode(ISD::FSUB, MVT::f64, Load, Bias); 402622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // final result 402722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Result; 402822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // handle final rounding 402922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestVT == MVT::f64) { 403022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // do nothing 403122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Result = Sub; 403222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } else { 403322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // if f32 then cast to f32 403422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Result = DAG.getNode(ISD::FP_ROUND, MVT::f32, Sub); 403522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 403622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Result; 403722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 403822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(!isSigned && "Legalize cannot Expand SINT_TO_FP for i64 yet"); 403922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp1 = DAG.getNode(ISD::SINT_TO_FP, DestVT, Op0); 404022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 404122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignSet = DAG.getSetCC(TLI.getSetCCResultTy(), Op0, 404222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getConstant(0, Op0.getValueType()), 404322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ISD::SETLT); 404422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Zero = getIntPtrConstant(0), Four = getIntPtrConstant(4); 404522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CstOffset = DAG.getNode(ISD::SELECT, Zero.getValueType(), 404622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SignSet, Four, Zero); 404722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 404822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the sign bit of the integer is set, the large number will be treated 404922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // as a negative number. To counteract this, the dynamic code adds an 405022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // offset depending on the data type. 405122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner uint64_t FF; 405222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (Op0.getValueType()) { 405322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Unsupported integer type!"); 405422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i8 : FF = 0x43800000ULL; break; // 2^8 (as a float) 405522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i16: FF = 0x47800000ULL; break; // 2^16 (as a float) 405622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i32: FF = 0x4F800000ULL; break; // 2^32 (as a float) 405722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i64: FF = 0x5F800000ULL; break; // 2^64 (as a float) 405822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 405922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (TLI.isLittleEndian()) FF <<= 32; 406022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner static Constant *FudgeFactor = ConstantUInt::get(Type::ULongTy, FF); 406122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 406222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CPIdx = DAG.getConstantPool(FudgeFactor, TLI.getPointerTy()); 406322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner CPIdx = DAG.getNode(ISD::ADD, TLI.getPointerTy(), CPIdx, CstOffset); 406422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand FudgeInReg; 406522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestVT == MVT::f32) 4066466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng FudgeInReg = DAG.getLoad(MVT::f32, DAG.getEntryNode(), CPIdx, NULL, 0); 406722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner else { 406822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(DestVT == MVT::f64 && "Unexpected conversion"); 406922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner FudgeInReg = LegalizeOp(DAG.getExtLoad(ISD::EXTLOAD, MVT::f64, 407022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getEntryNode(), CPIdx, 4071466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng NULL, 0, MVT::f32)); 407222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 407322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 407422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::FADD, DestVT, Tmp1, FudgeInReg); 407522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 407622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 407722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// PromoteLegalINT_TO_FP - This function is responsible for legalizing a 407822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// *INT_TO_FP operation of the specified operand when the target requests that 407922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we promote it. At this point, we know that the result and operand types are 408022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target, and that there is a legal UINT_TO_FP or SINT_TO_FP 408122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// operation that takes a larger input. 408222cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::PromoteLegalINT_TO_FP(SDOperand LegalOp, 408322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType DestVT, 408422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner bool isSigned) { 408522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // First step, figure out the appropriate *INT_TO_FP operation to use. 408622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType NewInTy = LegalOp.getValueType(); 408722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 408822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner unsigned OpToUse = 0; 408922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 409022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Scan for the appropriate larger type to use. 409122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner while (1) { 409222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner NewInTy = (MVT::ValueType)(NewInTy+1); 409322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(MVT::isInteger(NewInTy) && "Ran out of possibilities!"); 409422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 409522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports SINT_TO_FP of this type, use it. 409622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::SINT_TO_FP, NewInTy)) { 409722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 409822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 409922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewInTy)) 410022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 410122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 410222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 410322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::SINT_TO_FP; 410422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 410522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 410622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 410722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (isSigned) continue; 410822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 410922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports UINT_TO_FP of this type, use it. 411022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::UINT_TO_FP, NewInTy)) { 411122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 411222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 411322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewInTy)) 411422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 411522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 411622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 411722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::UINT_TO_FP; 411822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 411922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 412022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 412122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 412222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Otherwise, try a larger type. 412322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 412422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 412522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Okay, we found the operation and type to use. Zero extend our input to the 412622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // desired type then run the operation on it. 412722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(OpToUse, DestVT, 412822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(isSigned ? ISD::SIGN_EXTEND : ISD::ZERO_EXTEND, 412922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner NewInTy, LegalOp)); 413077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner} 413177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner 413222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// PromoteLegalFP_TO_INT - This function is responsible for legalizing a 413322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// FP_TO_*INT operation of the specified operand when the target requests that 413422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we promote it. At this point, we know that the result and operand types are 413522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target, and that there is a legal FP_TO_UINT or FP_TO_SINT 413622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// operation that returns a larger result. 413722cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::PromoteLegalFP_TO_INT(SDOperand LegalOp, 413822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType DestVT, 413922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner bool isSigned) { 414022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // First step, figure out the appropriate FP_TO*INT operation to use. 414122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType NewOutTy = DestVT; 41429c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner 414322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner unsigned OpToUse = 0; 4144e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner 414522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Scan for the appropriate larger type to use. 414622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner while (1) { 414722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner NewOutTy = (MVT::ValueType)(NewOutTy+1); 414822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(MVT::isInteger(NewOutTy) && "Ran out of possibilities!"); 414966de05b606cf31f1f23ed0c4eb1f097738cd1506Chris Lattner 415022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports FP_TO_SINT returning this type, use it. 415122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::FP_TO_SINT, NewOutTy)) { 415222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 415322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 415422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewOutTy)) 415522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 415622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 415722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 415822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::FP_TO_SINT; 415922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 416022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 416122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 4162e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner 416322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports FP_TO_UINT of this type, use it. 416422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::FP_TO_UINT, NewOutTy)) { 416522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 416622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 416722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewOutTy)) 416822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 416922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 417022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 417122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::FP_TO_UINT; 417222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 4173e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner } 417422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 41750d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner 417622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Otherwise, try a larger type. 4177a88a260dbd874a3bdd3e47f4f15ab0d7c7803044Chris Lattner } 4178a88a260dbd874a3bdd3e47f4f15ab0d7c7803044Chris Lattner 417922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Okay, we found the operation and type to use. Truncate the result of the 418022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // extended FP_TO_*INT operation to the desired size. 418122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::TRUNCATE, DestVT, 418222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(OpToUse, NewOutTy, LegalOp)); 418322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 418413689e2009e71f7982d1313ed699e0e6a50157d0Chris Lattner 418522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandBSWAP - Open code the operations for BSWAP of the specified operation. 418622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// 418722cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandBSWAP(SDOperand Op) { 418822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 418922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType SHVT = TLI.getShiftAmountTy(); 419022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp1, Tmp2, Tmp3, Tmp4, Tmp5, Tmp6, Tmp7, Tmp8; 419122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (VT) { 419222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Unhandled Expand type in BSWAP!"); abort(); 419322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i16: 419422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 419522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 419622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp1, Tmp2); 419722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i32: 419822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(24, SHVT)); 419922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 420022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 420122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(24, SHVT)); 420222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::AND, VT, Tmp3, DAG.getConstant(0xFF0000, VT)); 420322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::AND, VT, Tmp2, DAG.getConstant(0xFF00, VT)); 420422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp3); 420522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::OR, VT, Tmp2, Tmp1); 420622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp4, Tmp2); 420722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i64: 420822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(56, SHVT)); 420922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp7 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(40, SHVT)); 421022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(24, SHVT)); 421122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp5 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 421222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 421322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(24, SHVT)); 421422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(40, SHVT)); 421522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(56, SHVT)); 421622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp7 = DAG.getNode(ISD::AND, VT, Tmp7, DAG.getConstant(255ULL<<48, VT)); 421722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::AND, VT, Tmp6, DAG.getConstant(255ULL<<40, VT)); 421822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp5 = DAG.getNode(ISD::AND, VT, Tmp5, DAG.getConstant(255ULL<<32, VT)); 421922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::AND, VT, Tmp4, DAG.getConstant(255ULL<<24, VT)); 422022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::AND, VT, Tmp3, DAG.getConstant(255ULL<<16, VT)); 422122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::AND, VT, Tmp2, DAG.getConstant(255ULL<<8 , VT)); 422222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::OR, VT, Tmp8, Tmp7); 422322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::OR, VT, Tmp6, Tmp5); 422422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp3); 422522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::OR, VT, Tmp2, Tmp1); 422622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::OR, VT, Tmp8, Tmp6); 422722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp2); 422822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp8, Tmp4); 42290d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner } 423077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner} 4231edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 423222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandBitCount - Expand the specified bitcount instruction into operations. 423322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// 423422cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandBitCount(unsigned Opc, SDOperand Op) { 423522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (Opc) { 423622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Cannot expand this yet!"); 423722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTPOP: { 423822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner static const uint64_t mask[6] = { 423922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x5555555555555555ULL, 0x3333333333333333ULL, 424022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x0F0F0F0F0F0F0F0FULL, 0x00FF00FF00FF00FFULL, 424122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x0000FFFF0000FFFFULL, 0x00000000FFFFFFFFULL 424222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner }; 424322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 424422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType ShVT = TLI.getShiftAmountTy(); 424522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner unsigned len = getSizeInBits(VT); 424622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner for (unsigned i = 0; (1U << i) <= (len / 2); ++i) { 424722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner //x = (x & mask[i][len/8]) + (x >> (1 << i) & mask[i][len/8]) 424822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp2 = DAG.getConstant(mask[i], VT); 424922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getConstant(1ULL << i, ShVT); 425022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::ADD, VT, DAG.getNode(ISD::AND, VT, Op, Tmp2), 425122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::AND, VT, 425222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::SRL, VT, Op, Tmp3),Tmp2)); 425322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 425422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Op; 425522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 425622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTLZ: { 425722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // for now, we do this: 425822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >> 1); 425922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >> 2); 426022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // ... 426122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >>16); 426222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >>32); // for 64-bit input 426322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // return popcount(~x); 426422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // 426522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // but see also: http://www.hackersdelight.org/HDcode/nlz.cc 426622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 426722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType ShVT = TLI.getShiftAmountTy(); 426822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner unsigned len = getSizeInBits(VT); 426922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner for (unsigned i = 0; (1U << i) <= (len / 2); ++i) { 427022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getConstant(1ULL << i, ShVT); 427122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::OR, VT, Op, DAG.getNode(ISD::SRL, VT, Op, Tmp3)); 427222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 427322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::XOR, VT, Op, DAG.getConstant(~0ULL, VT)); 427422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::CTPOP, VT, Op); 427522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 427622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTTZ: { 427722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // for now, we use: { return popcount(~x & (x - 1)); } 427822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // unless the target has ctlz but not ctpop, in which case we use: 427922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // { return 32 - nlz(~x & (x-1)); } 428022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // see also http://www.hackersdelight.org/HDcode/ntz.cc 428122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 428222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp2 = DAG.getConstant(~0ULL, VT); 428322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getNode(ISD::AND, VT, 428422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::XOR, VT, Op, Tmp2), 428522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::SUB, VT, Op, DAG.getConstant(1, VT))); 428622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If ISD::CTLZ is legal and CTPOP isn't, then do that instead. 428722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isOperationLegal(ISD::CTPOP, VT) && 428822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner TLI.isOperationLegal(ISD::CTLZ, VT)) 428922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::SUB, VT, 429022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getConstant(getSizeInBits(VT), VT), 429122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::CTLZ, VT, Tmp3)); 429222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::CTPOP, VT, Tmp3); 429322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 429422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 429522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 4296e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 42973e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// ExpandOp - Expand the specified SDOperand into its two component pieces 42983e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// Lo&Hi. Note that the Op MUST be an expanded type. As a result of this, the 42993e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// LegalizeNodes map is filled in for any results that are not expanded, the 43003e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// ExpandedNodes map is filled in for any results that are expanded, and the 43013e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// Lo/Hi values are returned. 43023e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnervoid SelectionDAGLegalize::ExpandOp(SDOperand Op, SDOperand &Lo, SDOperand &Hi){ 43033e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner MVT::ValueType VT = Op.getValueType(); 430471c42a0190300a8903aaea80467b88f15f327ea9Chris Lattner MVT::ValueType NVT = TLI.getTypeToTransformTo(VT); 43053e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDNode *Node = Op.Val; 43063e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(getTypeAction(VT) == Expand && "Not an expanded type!"); 4307ab48be377298bd509427a29e174cf4e305138819Nate Begeman assert((MVT::isInteger(VT) || VT == MVT::Vector) && 4308ab48be377298bd509427a29e174cf4e305138819Nate Begeman "Cannot expand FP values!"); 4309ab48be377298bd509427a29e174cf4e305138819Nate Begeman assert(((MVT::isInteger(NVT) && NVT < VT) || VT == MVT::Vector) && 43103e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner "Cannot expand to FP value or to larger int value!"); 43113e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 43126fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner // See if we already expanded it. 43136fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner std::map<SDOperand, std::pair<SDOperand, SDOperand> >::iterator I 43146fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner = ExpandedNodes.find(Op); 43156fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner if (I != ExpandedNodes.end()) { 43166fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner Lo = I->second.first; 43176fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner Hi = I->second.second; 43186fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner return; 43193e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 43203e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 43213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getOpcode()) { 4322348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner case ISD::CopyFromReg: 4323348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner assert(0 && "CopyFromReg must be legal!"); 4324348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner default: 4325e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 43263e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner std::cerr << "NODE: "; Node->dump(); std::cerr << "\n"; 4327e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 43283e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(0 && "Do not know how to expand this operator!"); 43293e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner abort(); 4330fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: 4331fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Lo = DAG.getNode(ISD::UNDEF, NVT); 4332fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Hi = DAG.getNode(ISD::UNDEF, NVT); 4333fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 43343e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::Constant: { 43353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner uint64_t Cst = cast<ConstantSDNode>(Node)->getValue(); 43363e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Lo = DAG.getConstant(Cst, NVT); 43373e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getConstant(Cst >> MVT::getSizeInBits(NVT), NVT); 43383e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 43393e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 4340d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner case ISD::BUILD_PAIR: 43418137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Return the operands. 43428137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = Node->getOperand(0); 43438137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = Node->getOperand(1); 4344d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner break; 434558f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner 434658f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner case ISD::SIGN_EXTEND_INREG: 434758f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 43484bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner // sext_inreg the low part if needed. 43494bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner Lo = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Lo, Node->getOperand(1)); 43504bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner 43514bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner // The high part gets the sign extension from the lo-part. This handles 43524bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner // things like sextinreg V:i64 from i8. 435358f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, Lo, 435458f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner DAG.getConstant(MVT::getSizeInBits(NVT)-1, 435558f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner TLI.getShiftAmountTy())); 435658f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner break; 4357d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner 4358d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: { 4359d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman ExpandOp(Node->getOperand(0), Lo, Hi); 4360d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman SDOperand TempLo = DAG.getNode(ISD::BSWAP, NVT, Hi); 4361d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Hi = DAG.getNode(ISD::BSWAP, NVT, Lo); 4362d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Lo = TempLo; 4363d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 4364d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman } 4365d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman 4366edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner case ISD::CTPOP: 4367edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 43689b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner Lo = DAG.getNode(ISD::ADD, NVT, // ctpop(HL) -> ctpop(H)+ctpop(L) 43699b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner DAG.getNode(ISD::CTPOP, NVT, Lo), 43709b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner DAG.getNode(ISD::CTPOP, NVT, Hi)); 4371edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner Hi = DAG.getConstant(0, NVT); 4372edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner break; 4373edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 437439a8f336305a492fc6d2625f39f08968185616d2Chris Lattner case ISD::CTLZ: { 437539a8f336305a492fc6d2625f39f08968185616d2Chris Lattner // ctlz (HL) -> ctlz(H) != 32 ? ctlz(H) : (ctlz(L)+32) 43763becf2026bec881a60cbbe0031d8c51f4d6d4e28Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 437739a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand BitsC = DAG.getConstant(MVT::getSizeInBits(NVT), NVT); 437839a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand HLZ = DAG.getNode(ISD::CTLZ, NVT, Hi); 43797cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner SDOperand TopNotZero = DAG.getSetCC(TLI.getSetCCResultTy(), HLZ, BitsC, 43807cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETNE); 438139a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand LowPart = DAG.getNode(ISD::CTLZ, NVT, Lo); 438239a8f336305a492fc6d2625f39f08968185616d2Chris Lattner LowPart = DAG.getNode(ISD::ADD, NVT, LowPart, BitsC); 438339a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 438439a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, TopNotZero, HLZ, LowPart); 438539a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Hi = DAG.getConstant(0, NVT); 438639a8f336305a492fc6d2625f39f08968185616d2Chris Lattner break; 438739a8f336305a492fc6d2625f39f08968185616d2Chris Lattner } 438839a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 438939a8f336305a492fc6d2625f39f08968185616d2Chris Lattner case ISD::CTTZ: { 439039a8f336305a492fc6d2625f39f08968185616d2Chris Lattner // cttz (HL) -> cttz(L) != 32 ? cttz(L) : (cttz(H)+32) 43913becf2026bec881a60cbbe0031d8c51f4d6d4e28Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 439239a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand BitsC = DAG.getConstant(MVT::getSizeInBits(NVT), NVT); 439339a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand LTZ = DAG.getNode(ISD::CTTZ, NVT, Lo); 43947cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner SDOperand BotNotZero = DAG.getSetCC(TLI.getSetCCResultTy(), LTZ, BitsC, 43957cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETNE); 439639a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand HiPart = DAG.getNode(ISD::CTTZ, NVT, Hi); 439739a8f336305a492fc6d2625f39f08968185616d2Chris Lattner HiPart = DAG.getNode(ISD::ADD, NVT, HiPart, BitsC); 439839a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 439939a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, BotNotZero, LTZ, HiPart); 440039a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Hi = DAG.getConstant(0, NVT); 440139a8f336305a492fc6d2625f39f08968185616d2Chris Lattner break; 440239a8f336305a492fc6d2625f39f08968185616d2Chris Lattner } 4403edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 4404acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAARG: { 44058137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Ch = Node->getOperand(0); // Legalize the chain. 44068137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Ptr = Node->getOperand(1); // Legalize the pointer. 4407acc398c195a697795bff3245943d104eb19192b9Nate Begeman Lo = DAG.getVAArg(NVT, Ch, Ptr, Node->getOperand(2)); 4408acc398c195a697795bff3245943d104eb19192b9Nate Begeman Hi = DAG.getVAArg(NVT, Lo.getValue(1), Ptr, Node->getOperand(2)); 4409acc398c195a697795bff3245943d104eb19192b9Nate Begeman 4410acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Remember that we legalized the chain. 44118137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = LegalizeOp(Hi); 4412acc398c195a697795bff3245943d104eb19192b9Nate Begeman AddLegalizedOperand(Op.getValue(1), Hi.getValue(1)); 4413acc398c195a697795bff3245943d104eb19192b9Nate Begeman if (!TLI.isLittleEndian()) 4414acc398c195a697795bff3245943d104eb19192b9Nate Begeman std::swap(Lo, Hi); 4415acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 4416acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 4417acc398c195a697795bff3245943d104eb19192b9Nate Begeman 44183e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::LOAD: { 4419466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LoadSDNode *LD = cast<LoadSDNode>(Node); 4420466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Ch = LD->getChain(); // Legalize the chain. 4421466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Ptr = LD->getBasePtr(); // Legalize the pointer. 4422466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ISD::LoadExtType ExtType = LD->getExtensionType(); 4423466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 4424466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::NON_EXTLOAD) { 4425466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Lo = DAG.getLoad(NVT, Ch, Ptr, LD->getSrcValue(), LD->getSrcValueOffset()); 4426466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 4427466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Increment the pointer to the other half. 4428466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng unsigned IncrementSize = MVT::getSizeInBits(Lo.getValueType())/8; 4429466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 4430466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng getIntPtrConstant(IncrementSize)); 4431466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // FIXME: This creates a bogus srcvalue! 4432466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi = DAG.getLoad(NVT, Ch, Ptr, LD->getSrcValue(), LD->getSrcValueOffset()); 4433466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 4434466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Build a factor node to remember that this load is independent of the 4435466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // other one. 4436466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand TF = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 4437466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi.getValue(1)); 4438466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 4439466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Remember that we legalized the chain. 4440466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(Op.getValue(1), LegalizeOp(TF)); 4441466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (!TLI.isLittleEndian()) 4442466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng std::swap(Lo, Hi); 4443466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else { 4444466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng MVT::ValueType EVT = LD->getLoadVT(); 4445466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 4446466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (EVT == NVT) 4447466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Lo = DAG.getLoad(NVT, Ch, Ptr, LD->getSrcValue(), 4448466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LD->getSrcValueOffset()); 4449466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng else 4450466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Lo = DAG.getExtLoad(ExtType, NVT, Ch, Ptr, LD->getSrcValue(), 4451466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LD->getSrcValueOffset(), EVT); 4452466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 4453466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Remember that we legalized the chain. 4454466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Lo.getValue(1))); 4455466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 4456466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::SEXTLOAD) { 4457466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // The high part is obtained by SRA'ing all but one of the bits of the 4458466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // lo part. 4459466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng unsigned LoSize = MVT::getSizeInBits(Lo.getValueType()); 4460466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi = DAG.getNode(ISD::SRA, NVT, Lo, 4461466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng DAG.getConstant(LoSize-1, TLI.getShiftAmountTy())); 4462466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else if (ExtType == ISD::ZEXTLOAD) { 4463466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // The high part is just a zero. 4464466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi = DAG.getConstant(0, NVT); 4465466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else /* if (ExtType == ISD::EXTLOAD) */ { 4466466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // The high part is undefined. 4467466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi = DAG.getNode(ISD::UNDEF, NVT); 4468466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 4469466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 44703e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 44713e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 44723e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::AND: 44733e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::OR: 44743e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::XOR: { // Simple logical operators -> two trivial pieces. 44753e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand LL, LH, RL, RH; 44763e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(0), LL, LH); 44773e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(1), RL, RH); 44783e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Lo = DAG.getNode(Node->getOpcode(), NVT, LL, RL); 44793e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getNode(Node->getOpcode(), NVT, LH, RH); 44803e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 44813e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 44823e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SELECT: { 4483456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand LL, LH, RL, RH; 44843e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(1), LL, LH); 44853e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(2), RL, RH); 4486456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), LL, RL); 4487456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Hi = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), LH, RH); 44883e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 44893e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 44909373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case ISD::SELECT_CC: { 44919373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman SDOperand TL, TH, FL, FH; 44929373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman ExpandOp(Node->getOperand(2), TL, TH); 44939373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman ExpandOp(Node->getOperand(3), FL, FH); 44949373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Lo = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 44959373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Node->getOperand(1), TL, FL, Node->getOperand(4)); 44969373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Hi = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 44979373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Node->getOperand(1), TH, FH, Node->getOperand(4)); 44989373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 44999373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 45008137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::ANY_EXTEND: 450113c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner // The low part is any extension of the input (which degenerates to a copy). 45028137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::ANY_EXTEND, NVT, Node->getOperand(0)); 450313c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner // The high part is undefined. 450413c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Hi = DAG.getNode(ISD::UNDEF, NVT); 450513c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner break; 45063e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SIGN_EXTEND: { 45073e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The low part is just a sign extension of the input (which degenerates to 45083e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // a copy). 45098137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::SIGN_EXTEND, NVT, Node->getOperand(0)); 4510edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 45113e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The high part is obtained by SRA'ing all but one of the bits of the lo 45123e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // part. 45132dad454af674cb41a14a85ad6ce5c85c43959acdChris Lattner unsigned LoSize = MVT::getSizeInBits(Lo.getValueType()); 45148137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, Lo, 45158137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner DAG.getConstant(LoSize-1, TLI.getShiftAmountTy())); 45163e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 45173e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 45188137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::ZERO_EXTEND: 45193e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The low part is just a zero extension of the input (which degenerates to 45203e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // a copy). 45218137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::ZERO_EXTEND, NVT, Node->getOperand(0)); 4522edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 45233e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The high part is just a zero. 45243e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getConstant(0, NVT); 45253e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 452635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 452735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: { 4528f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner SDOperand Tmp; 4529f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner if (TLI.getOperationAction(ISD::BIT_CONVERT, VT) == TargetLowering::Custom){ 4530f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner // If the target wants to, allow it to lower this itself. 4531f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 4532f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 4533f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner case Legal: Tmp = LegalizeOp(Node->getOperand(0)); break; 4534f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner case Promote: Tmp = PromoteOp (Node->getOperand(0)); break; 4535f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner } 4536f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner Tmp = TLI.LowerOperation(DAG.getNode(ISD::BIT_CONVERT, VT, Tmp), DAG); 4537f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner } 4538f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner 4539f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner // Turn this into a load/store pair by default. 4540f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner if (Tmp.Val == 0) 4541f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner Tmp = ExpandBIT_CONVERT(Node->getValueType(0), Node->getOperand(0)); 4542f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner 454335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner ExpandOp(Tmp, Lo, Hi); 454435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 454535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 4546f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 45478137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::READCYCLECOUNTER: 4548308575be66ec3870d27b19df044fda18448feb41Chris Lattner assert(TLI.getOperationAction(ISD::READCYCLECOUNTER, VT) == 4549308575be66ec3870d27b19df044fda18448feb41Chris Lattner TargetLowering::Custom && 4550308575be66ec3870d27b19df044fda18448feb41Chris Lattner "Must custom expand ReadCycleCounter"); 45518137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = TLI.LowerOperation(Op, DAG); 45528137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner assert(Lo.Val && "Node must be custom expanded!"); 45538137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = Lo.getValue(1); 4554308575be66ec3870d27b19df044fda18448feb41Chris Lattner AddLegalizedOperand(SDOperand(Node, 1), // Remember we legalized the chain. 45558137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner LegalizeOp(Lo.getValue(2))); 4556f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth break; 4557f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 45584e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner // These operators cannot be expanded directly, emit them as calls to 45594e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner // library functions. 45604e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner case ISD::FP_TO_SINT: 456180a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner if (TLI.getOperationAction(ISD::FP_TO_SINT, VT) == TargetLowering::Custom) { 4562f20d183c2268553c738fefb014959ea924dd0555Chris Lattner SDOperand Op; 4563f20d183c2268553c738fefb014959ea924dd0555Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 4564f20d183c2268553c738fefb014959ea924dd0555Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 45658137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Legal: Op = LegalizeOp(Node->getOperand(0)); break; 45668137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Promote: Op = PromoteOp (Node->getOperand(0)); break; 4567f20d183c2268553c738fefb014959ea924dd0555Chris Lattner } 4568d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 4569f20d183c2268553c738fefb014959ea924dd0555Chris Lattner Op = TLI.LowerOperation(DAG.getNode(ISD::FP_TO_SINT, VT, Op), DAG); 4570f20d183c2268553c738fefb014959ea924dd0555Chris Lattner 457180a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner // Now that the custom expander is done, expand the result, which is still 457280a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner // VT. 457307dffd6af673c73352150583150b242a93694f00Chris Lattner if (Op.Val) { 457407dffd6af673c73352150583150b242a93694f00Chris Lattner ExpandOp(Op, Lo, Hi); 457507dffd6af673c73352150583150b242a93694f00Chris Lattner break; 457607dffd6af673c73352150583150b242a93694f00Chris Lattner } 457780a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner } 4578d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 45794e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner if (Node->getOperand(0).getValueType() == MVT::f32) 458077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Lo = ExpandLibCall("__fixsfdi", Node, Hi); 45814e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner else 458277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Lo = ExpandLibCall("__fixdfdi", Node, Hi); 45834e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner break; 4584d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 45854e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner case ISD::FP_TO_UINT: 458680a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner if (TLI.getOperationAction(ISD::FP_TO_UINT, VT) == TargetLowering::Custom) { 45878137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op; 45888137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 45898137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 45908137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Legal: Op = LegalizeOp(Node->getOperand(0)); break; 45918137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Promote: Op = PromoteOp (Node->getOperand(0)); break; 45928137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 45938137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 45948137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Op = TLI.LowerOperation(DAG.getNode(ISD::FP_TO_UINT, VT, Op), DAG); 45958137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 45968137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Now that the custom expander is done, expand the result. 459707dffd6af673c73352150583150b242a93694f00Chris Lattner if (Op.Val) { 459807dffd6af673c73352150583150b242a93694f00Chris Lattner ExpandOp(Op, Lo, Hi); 459907dffd6af673c73352150583150b242a93694f00Chris Lattner break; 460007dffd6af673c73352150583150b242a93694f00Chris Lattner } 460180a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner } 4602d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 46034e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner if (Node->getOperand(0).getValueType() == MVT::f32) 460477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Lo = ExpandLibCall("__fixunssfdi", Node, Hi); 46054e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner else 460677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Lo = ExpandLibCall("__fixunsdfdi", Node, Hi); 46074e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner break; 46084e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner 460905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SHL: { 461050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 4611348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 461250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SHL, VT) == TargetLowering::Custom) { 46138137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SHL, VT, Node->getOperand(0), ShiftAmt); 461450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 461550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 461650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 461750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 461850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 461950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 462050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 462150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 462250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 462379980b07dab50da1a8f572f9504674bfa853d484Chris Lattner // If ADDC/ADDE are supported and if the shift amount is a constant 1, emit 462479980b07dab50da1a8f572f9504674bfa853d484Chris Lattner // this X << 1 as X+X. 462579980b07dab50da1a8f572f9504674bfa853d484Chris Lattner if (ConstantSDNode *ShAmt = dyn_cast<ConstantSDNode>(ShiftAmt)) { 462679980b07dab50da1a8f572f9504674bfa853d484Chris Lattner if (ShAmt->getValue() == 1 && TLI.isOperationLegal(ISD::ADDC, NVT) && 462779980b07dab50da1a8f572f9504674bfa853d484Chris Lattner TLI.isOperationLegal(ISD::ADDE, NVT)) { 462879980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDOperand LoOps[2], HiOps[3]; 462979980b07dab50da1a8f572f9504674bfa853d484Chris Lattner ExpandOp(Node->getOperand(0), LoOps[0], HiOps[0]); 463079980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDVTList VTList = DAG.getVTList(LoOps[0].getValueType(), MVT::Flag); 463179980b07dab50da1a8f572f9504674bfa853d484Chris Lattner LoOps[1] = LoOps[0]; 463279980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Lo = DAG.getNode(ISD::ADDC, VTList, LoOps, 2); 463379980b07dab50da1a8f572f9504674bfa853d484Chris Lattner 463479980b07dab50da1a8f572f9504674bfa853d484Chris Lattner HiOps[1] = HiOps[0]; 463579980b07dab50da1a8f572f9504674bfa853d484Chris Lattner HiOps[2] = Lo.getValue(1); 463679980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Hi = DAG.getNode(ISD::ADDE, VTList, HiOps, 3); 463779980b07dab50da1a8f572f9504674bfa853d484Chris Lattner break; 463879980b07dab50da1a8f572f9504674bfa853d484Chris Lattner } 463979980b07dab50da1a8f572f9504674bfa853d484Chris Lattner } 464079980b07dab50da1a8f572f9504674bfa853d484Chris Lattner 4641e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 4642348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SHL, Node->getOperand(0), ShiftAmt, Lo, Hi)) 4643e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 46444759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 46454759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SHL_PARTS, use it. 464605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 464705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SHL_PARTS, NVT); 464805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 464905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 4650348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SHL_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 46514759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 46524759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 46534759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 4654e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 465577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Lo = ExpandLibCall("__ashldi3", Node, Hi); 4656e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 465705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 4658e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 465905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SRA: { 466050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 4661348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 466250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SRA, VT) == TargetLowering::Custom) { 46638137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SRA, VT, Node->getOperand(0), ShiftAmt); 466450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 466550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 466650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 466750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 466850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 466950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 467050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 467150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 467250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 4673e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 4674348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SRA, Node->getOperand(0), ShiftAmt, Lo, Hi)) 4675e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 46764759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 46774759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SRA_PARTS, use it. 467805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 467905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SRA_PARTS, NVT); 468005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 468105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 4682348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SRA_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 46834759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 46844759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 46854759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 4686e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 468777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Lo = ExpandLibCall("__ashrdi3", Node, Hi); 4688e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 468905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 469005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 469105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SRL: { 469250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 4693348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 469450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SRL, VT) == TargetLowering::Custom) { 46958137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SRL, VT, Node->getOperand(0), ShiftAmt); 469650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 469750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 469850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 469950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 470050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 470150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 470250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 470350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 470450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 4705e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 4706348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SRL, Node->getOperand(0), ShiftAmt, Lo, Hi)) 4707e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 47084759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 47094759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SRL_PARTS, use it. 471005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 471105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SRL_PARTS, NVT); 471205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 471305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 4714348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SRL_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 47154759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 47164759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 47174759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 4718e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 471977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Lo = ExpandLibCall("__lshrdi3", Node, Hi); 4720e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 472105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 4722e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 4723edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman case ISD::ADD: 47248137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::SUB: { 47258137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // If the target wants to custom expand this, let them. 47268137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner if (TLI.getOperationAction(Node->getOpcode(), VT) == 47278137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner TargetLowering::Custom) { 47288137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Op = TLI.LowerOperation(Op, DAG); 47298137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner if (Op.Val) { 47308137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Op, Lo, Hi); 47318137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner break; 47328137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 47338137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 47348137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 47358137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Expand the subcomponents. 47368137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand LHSL, LHSH, RHSL, RHSH; 47378137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Node->getOperand(0), LHSL, LHSH); 47388137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Node->getOperand(1), RHSL, RHSH); 473979980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); 474079980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDOperand LoOps[2], HiOps[3]; 4741bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner LoOps[0] = LHSL; 4742bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner LoOps[1] = RHSL; 4743bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[0] = LHSH; 4744bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[1] = RHSH; 4745551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman if (Node->getOpcode() == ISD::ADD) { 474679980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Lo = DAG.getNode(ISD::ADDC, VTList, LoOps, 2); 4747bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[2] = Lo.getValue(1); 474879980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Hi = DAG.getNode(ISD::ADDE, VTList, HiOps, 3); 4749551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman } else { 475079980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Lo = DAG.getNode(ISD::SUBC, VTList, LoOps, 2); 4751bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[2] = Lo.getValue(1); 475279980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Hi = DAG.getNode(ISD::SUBE, VTList, HiOps, 3); 4753551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman } 475484f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner break; 47558137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 4756c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MUL: { 47577d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner // If the target wants to custom expand this, let them. 47587d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner if (TLI.getOperationAction(ISD::MUL, VT) == TargetLowering::Custom) { 47598829dc88a8637fe588e299d96de394afc3ecc528Chris Lattner SDOperand New = TLI.LowerOperation(Op, DAG); 47608829dc88a8637fe588e299d96de394afc3ecc528Chris Lattner if (New.Val) { 47618829dc88a8637fe588e299d96de394afc3ecc528Chris Lattner ExpandOp(New, Lo, Hi); 47627d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner break; 47637d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner } 47647d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner } 47657d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner 47663f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng bool HasMULHS = TLI.isOperationLegal(ISD::MULHS, NVT); 47673f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng bool HasMULHU = TLI.isOperationLegal(ISD::MULHU, NVT); 47683f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng bool UseLibCall = true; 47693f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng if (HasMULHS || HasMULHU) { 4770c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman SDOperand LL, LH, RL, RH; 4771c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman ExpandOp(Node->getOperand(0), LL, LH); 4772c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman ExpandOp(Node->getOperand(1), RL, RH); 477356eb86806d5d178d42108f17d11098b3e640b996Nate Begeman unsigned SH = MVT::getSizeInBits(RH.getValueType())-1; 477456eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // MULHS implicitly sign extends its inputs. Check to see if ExpandOp 477556eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // extended the sign bit of the low half through the upper half, and if so 477656eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // emit a MULHS instead of the alternate sequence that is valid for any 477756eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // i64 x i64 multiply. 47783f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng if (HasMULHS && 477956eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // is RH an extension of the sign bit of RL? 478056eb86806d5d178d42108f17d11098b3e640b996Nate Begeman RH.getOpcode() == ISD::SRA && RH.getOperand(0) == RL && 478156eb86806d5d178d42108f17d11098b3e640b996Nate Begeman RH.getOperand(1).getOpcode() == ISD::Constant && 478256eb86806d5d178d42108f17d11098b3e640b996Nate Begeman cast<ConstantSDNode>(RH.getOperand(1))->getValue() == SH && 478356eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // is LH an extension of the sign bit of LL? 478456eb86806d5d178d42108f17d11098b3e640b996Nate Begeman LH.getOpcode() == ISD::SRA && LH.getOperand(0) == LL && 478556eb86806d5d178d42108f17d11098b3e640b996Nate Begeman LH.getOperand(1).getOpcode() == ISD::Constant && 478656eb86806d5d178d42108f17d11098b3e640b996Nate Begeman cast<ConstantSDNode>(LH.getOperand(1))->getValue() == SH) { 4787a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner // FIXME: Move this to the dag combiner. 4788a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner 4789a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner // Low part: 4790a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner Lo = DAG.getNode(ISD::MUL, NVT, LL, RL); 4791a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner // High part: 479256eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::MULHS, NVT, LL, RL); 4793a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner break; 47943f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng } else if (HasMULHU) { 4795a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner // Low part: 4796a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner Lo = DAG.getNode(ISD::MUL, NVT, LL, RL); 4797a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner 4798a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner // High part: 479956eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::MULHU, NVT, LL, RL); 480056eb86806d5d178d42108f17d11098b3e640b996Nate Begeman RH = DAG.getNode(ISD::MUL, NVT, LL, RH); 480156eb86806d5d178d42108f17d11098b3e640b996Nate Begeman LH = DAG.getNode(ISD::MUL, NVT, LH, RL); 480256eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::ADD, NVT, Hi, RH); 480356eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::ADD, NVT, Hi, LH); 4804a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner break; 480556eb86806d5d178d42108f17d11098b3e640b996Nate Begeman } 4806c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman } 48073f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng 4808a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner Lo = ExpandLibCall("__muldi3" , Node, Hi); 4809c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman break; 4810c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman } 481177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case ISD::SDIV: Lo = ExpandLibCall("__divdi3" , Node, Hi); break; 481277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case ISD::UDIV: Lo = ExpandLibCall("__udivdi3", Node, Hi); break; 481377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case ISD::SREM: Lo = ExpandLibCall("__moddi3" , Node, Hi); break; 481477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case ISD::UREM: Lo = ExpandLibCall("__umoddi3", Node, Hi); break; 48153e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 48163e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 481783397363348662e9352455ea1e6e88e7026300a4Chris Lattner // Make sure the resultant values have been legalized themselves, unless this 481883397363348662e9352455ea1e6e88e7026300a4Chris Lattner // is a type that requires multi-step expansion. 481983397363348662e9352455ea1e6e88e7026300a4Chris Lattner if (getTypeAction(NVT) != Expand && NVT != MVT::isVoid) { 482083397363348662e9352455ea1e6e88e7026300a4Chris Lattner Lo = LegalizeOp(Lo); 482183397363348662e9352455ea1e6e88e7026300a4Chris Lattner Hi = LegalizeOp(Hi); 482283397363348662e9352455ea1e6e88e7026300a4Chris Lattner } 482305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 482405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng // Remember in a map if the values will be reused later. 482505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng bool isNew = 482605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng ExpandedNodes.insert(std::make_pair(Op, std::make_pair(Lo, Hi))).second; 482705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng assert(isNew && "Value already expanded?!?"); 48283e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 48293e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 4830c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// SplitVectorOp - Given an operand of MVT::Vector type, break it down into 4831c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// two smaller values of MVT::Vector type. 4832c7029805ef35ce9805931067b841e6af11db382eChris Lattnervoid SelectionDAGLegalize::SplitVectorOp(SDOperand Op, SDOperand &Lo, 4833c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand &Hi) { 4834c7029805ef35ce9805931067b841e6af11db382eChris Lattner assert(Op.getValueType() == MVT::Vector && "Cannot split non-vector type!"); 4835c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDNode *Node = Op.Val; 4836c7029805ef35ce9805931067b841e6af11db382eChris Lattner unsigned NumElements = cast<ConstantSDNode>(*(Node->op_end()-2))->getValue(); 4837c7029805ef35ce9805931067b841e6af11db382eChris Lattner assert(NumElements > 1 && "Cannot split a single element vector!"); 4838c7029805ef35ce9805931067b841e6af11db382eChris Lattner unsigned NewNumElts = NumElements/2; 4839c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand NewNumEltsNode = DAG.getConstant(NewNumElts, MVT::i32); 4840c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand TypeNode = *(Node->op_end()-1); 4841c7029805ef35ce9805931067b841e6af11db382eChris Lattner 4842c7029805ef35ce9805931067b841e6af11db382eChris Lattner // See if we already split it. 4843c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::map<SDOperand, std::pair<SDOperand, SDOperand> >::iterator I 4844c7029805ef35ce9805931067b841e6af11db382eChris Lattner = SplitNodes.find(Op); 4845c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (I != SplitNodes.end()) { 4846c7029805ef35ce9805931067b841e6af11db382eChris Lattner Lo = I->second.first; 4847c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi = I->second.second; 4848c7029805ef35ce9805931067b841e6af11db382eChris Lattner return; 4849c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 4850c7029805ef35ce9805931067b841e6af11db382eChris Lattner 4851c7029805ef35ce9805931067b841e6af11db382eChris Lattner switch (Node->getOpcode()) { 4852e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey default: 4853e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 4854e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey Node->dump(); 4855e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 4856e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey assert(0 && "Unhandled operation in SplitVectorOp!"); 4857b2827b0901162169bb2692b77a839c9767849134Chris Lattner case ISD::VBUILD_VECTOR: { 4858bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> LoOps(Node->op_begin(), 4859bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Node->op_begin()+NewNumElts); 4860c7029805ef35ce9805931067b841e6af11db382eChris Lattner LoOps.push_back(NewNumEltsNode); 4861c7029805ef35ce9805931067b841e6af11db382eChris Lattner LoOps.push_back(TypeNode); 4862bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Lo = DAG.getNode(ISD::VBUILD_VECTOR, MVT::Vector, &LoOps[0], LoOps.size()); 4863c7029805ef35ce9805931067b841e6af11db382eChris Lattner 4864bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> HiOps(Node->op_begin()+NewNumElts, 4865bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Node->op_end()-2); 4866c7029805ef35ce9805931067b841e6af11db382eChris Lattner HiOps.push_back(NewNumEltsNode); 4867c7029805ef35ce9805931067b841e6af11db382eChris Lattner HiOps.push_back(TypeNode); 4868bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Hi = DAG.getNode(ISD::VBUILD_VECTOR, MVT::Vector, &HiOps[0], HiOps.size()); 4869c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 4870c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 4871c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VADD: 4872c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VSUB: 4873c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VMUL: 4874c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VSDIV: 4875c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VUDIV: 4876c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VAND: 4877c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VOR: 4878c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VXOR: { 4879c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand LL, LH, RL, RH; 4880c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitVectorOp(Node->getOperand(0), LL, LH); 4881c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitVectorOp(Node->getOperand(1), RL, RH); 4882c7029805ef35ce9805931067b841e6af11db382eChris Lattner 4883c7029805ef35ce9805931067b841e6af11db382eChris Lattner Lo = DAG.getNode(Node->getOpcode(), MVT::Vector, LL, RL, 4884c7029805ef35ce9805931067b841e6af11db382eChris Lattner NewNumEltsNode, TypeNode); 4885c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi = DAG.getNode(Node->getOpcode(), MVT::Vector, LH, RH, 4886c7029805ef35ce9805931067b841e6af11db382eChris Lattner NewNumEltsNode, TypeNode); 4887c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 4888c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 4889c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VLOAD: { 4890c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand Ch = Node->getOperand(0); // Legalize the chain. 4891c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand Ptr = Node->getOperand(1); // Legalize the pointer. 4892c7029805ef35ce9805931067b841e6af11db382eChris Lattner MVT::ValueType EVT = cast<VTSDNode>(TypeNode)->getVT(); 4893c7029805ef35ce9805931067b841e6af11db382eChris Lattner 4894c7029805ef35ce9805931067b841e6af11db382eChris Lattner Lo = DAG.getVecLoad(NewNumElts, EVT, Ch, Ptr, Node->getOperand(2)); 4895c7029805ef35ce9805931067b841e6af11db382eChris Lattner unsigned IncrementSize = NewNumElts * MVT::getSizeInBits(EVT)/8; 4896c7029805ef35ce9805931067b841e6af11db382eChris Lattner Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 4897c7029805ef35ce9805931067b841e6af11db382eChris Lattner getIntPtrConstant(IncrementSize)); 4898c7029805ef35ce9805931067b841e6af11db382eChris Lattner // FIXME: This creates a bogus srcvalue! 4899c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi = DAG.getVecLoad(NewNumElts, EVT, Ch, Ptr, Node->getOperand(2)); 4900c7029805ef35ce9805931067b841e6af11db382eChris Lattner 4901c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Build a factor node to remember that this load is independent of the 4902c7029805ef35ce9805931067b841e6af11db382eChris Lattner // other one. 4903c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand TF = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 4904c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi.getValue(1)); 4905c7029805ef35ce9805931067b841e6af11db382eChris Lattner 4906c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember that we legalized the chain. 4907c7029805ef35ce9805931067b841e6af11db382eChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(TF)); 4908c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 4909c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 49107692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner case ISD::VBIT_CONVERT: { 49117692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // We know the result is a vector. The input may be either a vector or a 49127692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // scalar value. 49137692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner if (Op.getOperand(0).getValueType() != MVT::Vector) { 49147692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // Lower to a store/load. FIXME: this could be improved probably. 49157692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner SDOperand Ptr = CreateStackTemporary(Op.getOperand(0).getValueType()); 49167692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner 4917786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng SDOperand St = DAG.getStore(DAG.getEntryNode(), 4918786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng Op.getOperand(0), Ptr, DAG.getSrcValue(0)); 49197692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner MVT::ValueType EVT = cast<VTSDNode>(TypeNode)->getVT(); 49207692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner St = DAG.getVecLoad(NumElements, EVT, St, Ptr, DAG.getSrcValue(0)); 49217692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner SplitVectorOp(St, Lo, Hi); 49227692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner } else { 49237692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // If the input is a vector type, we have to either scalarize it, pack it 49247692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // or convert it based on whether the input vector type is legal. 49257692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner SDNode *InVal = Node->getOperand(0).Val; 49267692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner unsigned NumElems = 49277692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner cast<ConstantSDNode>(*(InVal->op_end()-2))->getValue(); 49287692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner MVT::ValueType EVT = cast<VTSDNode>(*(InVal->op_end()-1))->getVT(); 49297692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner 49307692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // If the input is from a single element vector, scalarize the vector, 49317692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // then treat like a scalar. 49327692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner if (NumElems == 1) { 49337692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner SDOperand Scalar = PackVectorOp(Op.getOperand(0), EVT); 49347692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner Scalar = DAG.getNode(ISD::VBIT_CONVERT, MVT::Vector, Scalar, 49357692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner Op.getOperand(1), Op.getOperand(2)); 49367692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner SplitVectorOp(Scalar, Lo, Hi); 49377692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner } else { 49387692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // Split the input vector. 49397692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner SplitVectorOp(Op.getOperand(0), Lo, Hi); 49407692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner 49417692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // Convert each of the pieces now. 49427692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner Lo = DAG.getNode(ISD::VBIT_CONVERT, MVT::Vector, Lo, 49437692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner NewNumEltsNode, TypeNode); 49447692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner Hi = DAG.getNode(ISD::VBIT_CONVERT, MVT::Vector, Hi, 49457692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner NewNumEltsNode, TypeNode); 49467692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner } 49477692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner break; 49487692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner } 49497692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner } 4950c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 4951c7029805ef35ce9805931067b841e6af11db382eChris Lattner 4952c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember in a map if the values will be reused later. 4953c7029805ef35ce9805931067b841e6af11db382eChris Lattner bool isNew = 4954c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitNodes.insert(std::make_pair(Op, std::make_pair(Lo, Hi))).second; 4955c7029805ef35ce9805931067b841e6af11db382eChris Lattner assert(isNew && "Value already expanded?!?"); 4956c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 4957c7029805ef35ce9805931067b841e6af11db382eChris Lattner 4958c7029805ef35ce9805931067b841e6af11db382eChris Lattner 4959c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// PackVectorOp - Given an operand of MVT::Vector type, convert it into the 4960c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// equivalent operation that returns a scalar (e.g. F32) or packed value 4961c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// (e.g. MVT::V4F32). When this is called, we know that PackedVT is the right 4962c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// type for the result. 4963c7029805ef35ce9805931067b841e6af11db382eChris LattnerSDOperand SelectionDAGLegalize::PackVectorOp(SDOperand Op, 4964c7029805ef35ce9805931067b841e6af11db382eChris Lattner MVT::ValueType NewVT) { 4965c7029805ef35ce9805931067b841e6af11db382eChris Lattner assert(Op.getValueType() == MVT::Vector && "Bad PackVectorOp invocation!"); 4966c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDNode *Node = Op.Val; 4967c7029805ef35ce9805931067b841e6af11db382eChris Lattner 4968c7029805ef35ce9805931067b841e6af11db382eChris Lattner // See if we already packed it. 4969c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::map<SDOperand, SDOperand>::iterator I = PackedNodes.find(Op); 4970c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (I != PackedNodes.end()) return I->second; 4971c7029805ef35ce9805931067b841e6af11db382eChris Lattner 4972c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand Result; 4973c7029805ef35ce9805931067b841e6af11db382eChris Lattner switch (Node->getOpcode()) { 49742332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: 4975e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 49762332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Node->dump(); std::cerr << "\n"; 4977e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 49782332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner assert(0 && "Unknown vector operation in PackVectorOp!"); 4979c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VADD: 4980c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VSUB: 4981c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VMUL: 4982c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VSDIV: 4983c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VUDIV: 4984c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VAND: 4985c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VOR: 4986c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VXOR: 4987c7029805ef35ce9805931067b841e6af11db382eChris Lattner Result = DAG.getNode(getScalarizedOpcode(Node->getOpcode(), NewVT), 4988c7029805ef35ce9805931067b841e6af11db382eChris Lattner NewVT, 4989c7029805ef35ce9805931067b841e6af11db382eChris Lattner PackVectorOp(Node->getOperand(0), NewVT), 4990c7029805ef35ce9805931067b841e6af11db382eChris Lattner PackVectorOp(Node->getOperand(1), NewVT)); 4991c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 4992c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VLOAD: { 49934794a6b6a09e3440438cd653ec09cf0c2e45be1cChris Lattner SDOperand Ch = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 49944794a6b6a09e3440438cd653ec09cf0c2e45be1cChris Lattner SDOperand Ptr = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 4995c7029805ef35ce9805931067b841e6af11db382eChris Lattner 4996466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SrcValueSDNode *SV = cast<SrcValueSDNode>(Node->getOperand(2)); 4997466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getLoad(NewVT, Ch, Ptr, SV->getValue(), SV->getOffset()); 4998c7029805ef35ce9805931067b841e6af11db382eChris Lattner 4999c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember that we legalized the chain. 5000c7029805ef35ce9805931067b841e6af11db382eChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 5001c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 5002c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 5003b2827b0901162169bb2692b77a839c9767849134Chris Lattner case ISD::VBUILD_VECTOR: 500470c2a61e0a0fb0a7e8b9bddd26bdcc92762772f0Chris Lattner if (Node->getOperand(0).getValueType() == NewVT) { 5005b2827b0901162169bb2692b77a839c9767849134Chris Lattner // Returning a scalar? 5006c7029805ef35ce9805931067b841e6af11db382eChris Lattner Result = Node->getOperand(0); 5007c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else { 5008b2827b0901162169bb2692b77a839c9767849134Chris Lattner // Returning a BUILD_VECTOR? 500917614ea63db9189050b6ca0310f535d12bdedb81Chris Lattner 501017614ea63db9189050b6ca0310f535d12bdedb81Chris Lattner // If all elements of the build_vector are undefs, return an undef. 501117614ea63db9189050b6ca0310f535d12bdedb81Chris Lattner bool AllUndef = true; 501217614ea63db9189050b6ca0310f535d12bdedb81Chris Lattner for (unsigned i = 0, e = Node->getNumOperands()-2; i != e; ++i) 501317614ea63db9189050b6ca0310f535d12bdedb81Chris Lattner if (Node->getOperand(i).getOpcode() != ISD::UNDEF) { 501417614ea63db9189050b6ca0310f535d12bdedb81Chris Lattner AllUndef = false; 501517614ea63db9189050b6ca0310f535d12bdedb81Chris Lattner break; 501617614ea63db9189050b6ca0310f535d12bdedb81Chris Lattner } 501717614ea63db9189050b6ca0310f535d12bdedb81Chris Lattner if (AllUndef) { 501817614ea63db9189050b6ca0310f535d12bdedb81Chris Lattner Result = DAG.getNode(ISD::UNDEF, NewVT); 501917614ea63db9189050b6ca0310f535d12bdedb81Chris Lattner } else { 5020bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Result = DAG.getNode(ISD::BUILD_VECTOR, NewVT, Node->op_begin(), 5021bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Node->getNumOperands()-2); 502217614ea63db9189050b6ca0310f535d12bdedb81Chris Lattner } 5023c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 5024c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 50252332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case ISD::VINSERT_VECTOR_ELT: 50262332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner if (!MVT::isVector(NewVT)) { 50272332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // Returning a scalar? Must be the inserted element. 50282332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = Node->getOperand(1); 50292332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } else { 50302332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = DAG.getNode(ISD::INSERT_VECTOR_ELT, NewVT, 50312332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner PackVectorOp(Node->getOperand(0), NewVT), 50322332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Node->getOperand(1), Node->getOperand(2)); 50332332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 50342332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 50355b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner case ISD::VVECTOR_SHUFFLE: 50365b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner if (!MVT::isVector(NewVT)) { 50375b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner // Returning a scalar? Figure out if it is the LHS or RHS and return it. 50385b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner SDOperand EltNum = Node->getOperand(2).getOperand(0); 50395b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner if (cast<ConstantSDNode>(EltNum)->getValue()) 50405b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner Result = PackVectorOp(Node->getOperand(1), NewVT); 50415b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner else 50425b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner Result = PackVectorOp(Node->getOperand(0), NewVT); 50435b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner } else { 50445b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner // Otherwise, return a VECTOR_SHUFFLE node. First convert the index 50455b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner // vector from a VBUILD_VECTOR to a BUILD_VECTOR. 50465b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner std::vector<SDOperand> BuildVecIdx(Node->getOperand(2).Val->op_begin(), 50475b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner Node->getOperand(2).Val->op_end()-2); 50485b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner MVT::ValueType BVT = MVT::getIntVectorWithNumElements(BuildVecIdx.size()); 5049bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand BV = DAG.getNode(ISD::BUILD_VECTOR, BVT, 5050bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Node->getOperand(2).Val->op_begin(), 5051bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Node->getOperand(2).Val->getNumOperands()-2); 50525b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner 50535b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner Result = DAG.getNode(ISD::VECTOR_SHUFFLE, NewVT, 50545b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner PackVectorOp(Node->getOperand(0), NewVT), 50555b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner PackVectorOp(Node->getOperand(1), NewVT), BV); 50565b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner } 50575b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner break; 5058e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner case ISD::VBIT_CONVERT: 5059e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner if (Op.getOperand(0).getValueType() != MVT::Vector) 5060e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner Result = DAG.getNode(ISD::BIT_CONVERT, NewVT, Op.getOperand(0)); 5061e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner else { 5062e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner // If the input is a vector type, we have to either scalarize it, pack it 5063e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner // or convert it based on whether the input vector type is legal. 5064e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner SDNode *InVal = Node->getOperand(0).Val; 5065e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner unsigned NumElems = 5066e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner cast<ConstantSDNode>(*(InVal->op_end()-2))->getValue(); 5067e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner MVT::ValueType EVT = cast<VTSDNode>(*(InVal->op_end()-1))->getVT(); 5068e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner 5069e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner // Figure out if there is a Packed type corresponding to this Vector 5070e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner // type. If so, convert to the packed type. 5071e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 5072e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner if (TVT != MVT::Other && TLI.isTypeLegal(TVT)) { 5073e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner // Turn this into a bit convert of the packed input. 5074e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner Result = DAG.getNode(ISD::BIT_CONVERT, NewVT, 5075e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner PackVectorOp(Node->getOperand(0), TVT)); 5076e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner break; 5077e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner } else if (NumElems == 1) { 5078e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner // Turn this into a bit convert of the scalar input. 5079e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner Result = DAG.getNode(ISD::BIT_CONVERT, NewVT, 5080e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner PackVectorOp(Node->getOperand(0), EVT)); 5081e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner break; 5082e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner } else { 5083e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner // FIXME: UNIMP! 5084e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner assert(0 && "Cast from unsupported vector type not implemented yet!"); 5085e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner } 5086e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner } 5087db3c626eb9e85e9192dbee59ff0c4d143c37c94dEvan Cheng break; 5088b22e35a3c3bec07f5559c1476b3143e0d6d64269Chris Lattner case ISD::VSELECT: 5089b22e35a3c3bec07f5559c1476b3143e0d6d64269Chris Lattner Result = DAG.getNode(ISD::SELECT, NewVT, Op.getOperand(0), 5090b22e35a3c3bec07f5559c1476b3143e0d6d64269Chris Lattner PackVectorOp(Op.getOperand(1), NewVT), 5091b22e35a3c3bec07f5559c1476b3143e0d6d64269Chris Lattner PackVectorOp(Op.getOperand(2), NewVT)); 5092b22e35a3c3bec07f5559c1476b3143e0d6d64269Chris Lattner break; 5093c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 5094c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5095c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (TLI.isTypeLegal(NewVT)) 5096c7029805ef35ce9805931067b841e6af11db382eChris Lattner Result = LegalizeOp(Result); 5097c7029805ef35ce9805931067b841e6af11db382eChris Lattner bool isNew = PackedNodes.insert(std::make_pair(Op, Result)).second; 5098c7029805ef35ce9805931067b841e6af11db382eChris Lattner assert(isNew && "Value already packed?"); 5099c7029805ef35ce9805931067b841e6af11db382eChris Lattner return Result; 5100c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 5101c7029805ef35ce9805931067b841e6af11db382eChris Lattner 51023e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 51033e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// SelectionDAG::Legalize - This is the entry point for the file. 51043e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// 51059c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattnervoid SelectionDAG::Legalize() { 51065e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner if (ViewLegalizeDAGs) viewGraph(); 51075e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner 51083e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// run - This is the main entry point to this class. 51093e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// 5110456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SelectionDAGLegalize(*this).LegalizeDAG(); 51113e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 51123e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 5113