LegalizeDAG.cpp revision b429f7303eecc6fe0218d86e2f1321f70473deb4
13e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner//===-- LegalizeDAG.cpp - Implement SelectionDAG::Legalize ----------------===// 2edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman// 33e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// The LLVM Compiler Infrastructure 43e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// 53e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// This file was developed by the LLVM research group and is distributed under 63e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// the University of Illinois Open Source License. See LICENSE.TXT for details. 7edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman// 83e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner//===----------------------------------------------------------------------===// 93e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// 103e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// This file implements the SelectionDAG::Legalize method. 113e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// 123e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner//===----------------------------------------------------------------------===// 133e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 143e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner#include "llvm/CodeGen/SelectionDAG.h" 153e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner#include "llvm/CodeGen/MachineFunction.h" 1645b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner#include "llvm/CodeGen/MachineFrameInfo.h" 17acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey#include "llvm/CodeGen/MachineJumpTableInfo.h" 183e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner#include "llvm/Target/TargetLowering.h" 19e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner#include "llvm/Target/TargetData.h" 203d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng#include "llvm/Target/TargetMachine.h" 210f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner#include "llvm/Target/TargetOptions.h" 22adf6a965a321372c640845407195594835921eb4Chris Lattner#include "llvm/CallingConv.h" 233e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner#include "llvm/Constants.h" 24c10305743c313558405079452138f03124e87581Reid Spencer#include "llvm/DerivedTypes.h" 255e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner#include "llvm/Support/MathExtras.h" 265e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner#include "llvm/Support/CommandLine.h" 27a4f0b3a084d120cfc5b5bb06f64b222f5cb72740Chris Lattner#include "llvm/Support/Compiler.h" 287971514755a08ec156a1b9c0f7f05d67919c56b7Chris Lattner#include "llvm/ADT/DenseMap.h" 29f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner#include "llvm/ADT/SmallVector.h" 3000755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner#include "llvm/ADT/SmallPtrSet.h" 31033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng#include <map> 323e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnerusing namespace llvm; 333e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 345e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner#ifndef NDEBUG 355e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattnerstatic cl::opt<bool> 365e46a19ec848cd4fc9649bd5170c43d9e657668cChris LattnerViewLegalizeDAGs("view-legalize-dags", cl::Hidden, 375e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner cl::desc("Pop up a window to show dags before legalize")); 385e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner#else 395e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattnerstatic const bool ViewLegalizeDAGs = 0; 405e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner#endif 415e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner 42718071c476014cb0aaff9c7d018120d5a8930217Chris Lattnernamespace llvm { 43718071c476014cb0aaff9c7d018120d5a8930217Chris Lattnertemplate<> 44718071c476014cb0aaff9c7d018120d5a8930217Chris Lattnerstruct DenseMapKeyInfo<SDOperand> { 45718071c476014cb0aaff9c7d018120d5a8930217Chris Lattner static inline SDOperand getEmptyKey() { return SDOperand((SDNode*)-1, -1U); } 46718071c476014cb0aaff9c7d018120d5a8930217Chris Lattner static inline SDOperand getTombstoneKey() { return SDOperand((SDNode*)-1, 0);} 47718071c476014cb0aaff9c7d018120d5a8930217Chris Lattner static unsigned getHashValue(const SDOperand &Val) { 48718071c476014cb0aaff9c7d018120d5a8930217Chris Lattner return DenseMapKeyInfo<void*>::getHashValue(Val.Val) + Val.ResNo; 49718071c476014cb0aaff9c7d018120d5a8930217Chris Lattner } 50718071c476014cb0aaff9c7d018120d5a8930217Chris Lattner static bool isPod() { return true; } 51718071c476014cb0aaff9c7d018120d5a8930217Chris Lattner}; 52718071c476014cb0aaff9c7d018120d5a8930217Chris Lattner} 53718071c476014cb0aaff9c7d018120d5a8930217Chris Lattner 543e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner//===----------------------------------------------------------------------===// 553e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// SelectionDAGLegalize - This takes an arbitrary SelectionDAG as input and 563e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// hacks on it until the target machine can handle it. This involves 573e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// eliminating value sizes the machine cannot handle (promoting small sizes to 583e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// large sizes or splitting up large values into small values) as well as 593e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// eliminating operations the machine cannot handle. 603e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// 613e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// This code also does a small amount of optimization and recognition of idioms 623e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// as part of its processing. For example, if a target does not support a 633e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// 'setcc' instruction efficiently, but does support 'brcc' instruction, this 643e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// will attempt merge setcc and brc instructions into brcc's. 653e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// 663e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnernamespace { 67360e8200ec544a3c877ff74b48f445140ac9bbd6Chris Lattnerclass VISIBILITY_HIDDEN SelectionDAGLegalize { 683e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner TargetLowering &TLI; 693e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SelectionDAG &DAG; 703e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 716831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Libcall insertion helpers. 726831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 736831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// LastCALLSEQ_END - This keeps track of the CALLSEQ_END node that has been 746831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// legalized. We use this to ensure that calls are properly serialized 756831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// against each other, including inserted libcalls. 766831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand LastCALLSEQ_END; 776831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 786831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// IsLegalizingCall - This member is used *only* for purposes of providing 796831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// helpful assertions that a libcall isn't created while another call is 806831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// being legalized (which could lead to non-serialized call sequences). 816831a815999dde4cf801e2076e66b4943964daf2Chris Lattner bool IsLegalizingCall; 826831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 833e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner enum LegalizeAction { 8468a17febc70d9beb5353454e0c6d136ca1e87605Chris Lattner Legal, // The target natively supports this operation. 8568a17febc70d9beb5353454e0c6d136ca1e87605Chris Lattner Promote, // This operation should be executed in a larger type. 86d74ea2bbd8bb630331f35ead42d385249bd42af8Chris Lattner Expand // Try to expand this to other ops, otherwise use a libcall. 873e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner }; 886831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 893e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// ValueTypeActions - This is a bitvector that contains two bits for each 903e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// value type, where the two bits correspond to the LegalizeAction enum. 913e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// This can be queried with "getTypeAction(VT)". 9268a17febc70d9beb5353454e0c6d136ca1e87605Chris Lattner TargetLowering::ValueTypeActionImpl ValueTypeActions; 933e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 943e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// LegalizedNodes - For nodes that are of legal width, and that have more 953e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// than one use, this map indicates what regularized operand to use. This 963e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// allows us to avoid legalizing the same thing more than once. 97718071c476014cb0aaff9c7d018120d5a8930217Chris Lattner DenseMap<SDOperand, SDOperand> LegalizedNodes; 983e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 9903c8546ec57523970874917854a2fb77b1ff598eChris Lattner /// PromotedNodes - For nodes that are below legal width, and that have more 10003c8546ec57523970874917854a2fb77b1ff598eChris Lattner /// than one use, this map indicates what promoted value to use. This allows 10103c8546ec57523970874917854a2fb77b1ff598eChris Lattner /// us to avoid promoting the same thing more than once. 10240030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner DenseMap<SDOperand, SDOperand> PromotedNodes; 10303c8546ec57523970874917854a2fb77b1ff598eChris Lattner 104c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// ExpandedNodes - For nodes that need to be expanded this map indicates 105c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// which which operands are the expanded version of the input. This allows 106c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// us to avoid expanding the same node more than once. 10740030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner DenseMap<SDOperand, std::pair<SDOperand, SDOperand> > ExpandedNodes; 1083e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 109c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// SplitNodes - For vector nodes that need to be split, this map indicates 110c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// which which operands are the split version of the input. This allows us 111c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// to avoid splitting the same node more than once. 112c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::map<SDOperand, std::pair<SDOperand, SDOperand> > SplitNodes; 113c7029805ef35ce9805931067b841e6af11db382eChris Lattner 114c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// PackedNodes - For nodes that need to be packed from MVT::Vector types to 115ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer /// concrete vector types, this contains the mapping of ones we have already 116c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// processed to the result. 117c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::map<SDOperand, SDOperand> PackedNodes; 118c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1198afc48e44ad8868c1d41511db645e2ba1a4b894eChris Lattner void AddLegalizedOperand(SDOperand From, SDOperand To) { 12069a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner LegalizedNodes.insert(std::make_pair(From, To)); 12169a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner // If someone requests legalization of the new node, return itself. 12269a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner if (From != To) 12369a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner LegalizedNodes.insert(std::make_pair(To, To)); 1248afc48e44ad8868c1d41511db645e2ba1a4b894eChris Lattner } 12503c8546ec57523970874917854a2fb77b1ff598eChris Lattner void AddPromotedOperand(SDOperand From, SDOperand To) { 12640030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner bool isNew = PromotedNodes.insert(std::make_pair(From, To)); 12703c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(isNew && "Got into the map somehow?"); 12869a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner // If someone requests legalization of the new node, return itself. 12969a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner LegalizedNodes.insert(std::make_pair(To, To)); 13003c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 1318afc48e44ad8868c1d41511db645e2ba1a4b894eChris Lattner 1323e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnerpublic: 1333e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1349c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner SelectionDAGLegalize(SelectionDAG &DAG); 1353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1363e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// getTypeAction - Return how we should legalize values of this type, either 1373e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// it is already legal or we need to expand it into multiple registers of 1383e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// smaller integer type, or we need to promote it to a larger type. 1393e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner LegalizeAction getTypeAction(MVT::ValueType VT) const { 14068a17febc70d9beb5353454e0c6d136ca1e87605Chris Lattner return (LegalizeAction)ValueTypeActions.getTypeAction(VT); 1413e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1423e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1433e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// isTypeLegal - Return true if this type is legal on this target. 1443e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// 1453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner bool isTypeLegal(MVT::ValueType VT) const { 1463e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner return getTypeAction(VT) == Legal; 1473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1493e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner void LegalizeDAG(); 1503e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 151456a93afcec7740c45cafa8354317f7b17987a6dChris Lattnerprivate: 152c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// HandleOp - Legalize, Promote, Expand or Pack the specified operand as 153c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// appropriate for its type. 154c7029805ef35ce9805931067b841e6af11db382eChris Lattner void HandleOp(SDOperand Op); 155c7029805ef35ce9805931067b841e6af11db382eChris Lattner 156c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// LegalizeOp - We know that the specified value has a legal type. 157c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// Recursively ensure that the operands have legal types, then return the 158c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// result. 1593e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand LegalizeOp(SDOperand O); 160c7029805ef35ce9805931067b841e6af11db382eChris Lattner 161c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// PromoteOp - Given an operation that produces a value in an invalid type, 162c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// promote it to compute the value into a larger type. The produced value 163c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// will have the correct bits for the low portion of the register, but no 164c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// guarantee is made about the top bits: it may be zero, sign-extended, or 165c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// garbage. 16603c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDOperand PromoteOp(SDOperand O); 1673e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 168c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// ExpandOp - Expand the specified SDOperand into its two component pieces 169c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// Lo&Hi. Note that the Op MUST be an expanded type. As a result of this, 170c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// the LegalizeNodes map is filled in for any results that are not expanded, 171c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// the ExpandedNodes map is filled in for any results that are expanded, and 172c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// the Lo/Hi values are returned. This applies to integer types and Vector 173c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// types. 174c7029805ef35ce9805931067b841e6af11db382eChris Lattner void ExpandOp(SDOperand O, SDOperand &Lo, SDOperand &Hi); 175c7029805ef35ce9805931067b841e6af11db382eChris Lattner 176c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// SplitVectorOp - Given an operand of MVT::Vector type, break it down into 177c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// two smaller values of MVT::Vector type. 178c7029805ef35ce9805931067b841e6af11db382eChris Lattner void SplitVectorOp(SDOperand O, SDOperand &Lo, SDOperand &Hi); 179c7029805ef35ce9805931067b841e6af11db382eChris Lattner 180c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// PackVectorOp - Given an operand of MVT::Vector type, convert it into the 181c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// equivalent operation that returns a packed value (e.g. MVT::V4F32). When 182c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// this is called, we know that PackedVT is the right type for the result and 183c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// we know that this type is legal for the target. 184c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand PackVectorOp(SDOperand O, MVT::ValueType PackedVT); 185c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1864352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// isShuffleLegal - Return true if a vector shuffle is legal with the 1874352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// specified mask and type. Targets can specify exactly which masks they 1884352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// support and the code generator is tasked with not creating illegal masks. 1894352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// 1904352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// Note that this will also return true for shuffles that are promoted to a 1914352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// different type. 1924352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// 1934352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// If this is a legal shuffle, this method returns the (possibly promoted) 1944352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// build_vector Mask. If it's not a legal shuffle, it returns null. 1954352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner SDNode *isShuffleLegal(MVT::ValueType VT, SDOperand Mask) const; 1964352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 197c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner bool LegalizeAllNodesNotLeadingTo(SDNode *N, SDNode *Dest, 19800755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner SmallPtrSet<SDNode*, 32> &NodesLeadingTo); 1996831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 200750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman void LegalizeSetCCOperands(SDOperand &LHS, SDOperand &RHS, SDOperand &CC); 201750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 202ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand CreateStackTemporary(MVT::ValueType VT); 203ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 20447857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer SDOperand ExpandLibCall(const char *Name, SDNode *Node, bool isSigned, 20577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand &Hi); 20677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand ExpandIntToFP(bool isSigned, MVT::ValueType DestTy, 20777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand Source); 208cad063f1a8ecda4fd556a733dc5eaa8a96acb80dChris Lattner 20935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner SDOperand ExpandBIT_CONVERT(MVT::ValueType DestVT, SDOperand SrcOp); 210ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand ExpandBUILD_VECTOR(SDNode *Node); 2114352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner SDOperand ExpandSCALAR_TO_VECTOR(SDNode *Node); 2126269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey SDOperand ExpandLegalINT_TO_FP(bool isSigned, 2136269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey SDOperand LegalOp, 2146269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey MVT::ValueType DestVT); 2155a8441ea3fc145393d6274156bd05c4a006099eaNate Begeman SDOperand PromoteLegalINT_TO_FP(SDOperand LegalOp, MVT::ValueType DestVT, 2165a8441ea3fc145393d6274156bd05c4a006099eaNate Begeman bool isSigned); 2171618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner SDOperand PromoteLegalFP_TO_INT(SDOperand LegalOp, MVT::ValueType DestVT, 2181618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner bool isSigned); 21900b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen 220456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand ExpandBSWAP(SDOperand Op); 221456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand ExpandBitCount(unsigned Opc, SDOperand Op); 222e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner bool ExpandShift(unsigned Opc, SDOperand Op, SDOperand Amt, 223e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner SDOperand &Lo, SDOperand &Hi); 2245b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner void ExpandShiftParts(unsigned NodeOp, SDOperand Op, SDOperand Amt, 2255b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand &Lo, SDOperand &Hi); 226b9fa3bc8f39bf1e8df48b85eae4563032dd20bfcChris Lattner 2271597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SDOperand LowerVEXTRACT_VECTOR_ELT(SDOperand Op); 2284aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner SDOperand ExpandEXTRACT_VECTOR_ELT(SDOperand Op); 2291597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 2303e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand getIntPtrConstant(uint64_t Val) { 2313e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner return DAG.getConstant(Val, TLI.getPointerTy()); 2323e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 2333e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner}; 2343e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 2353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 2364352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// isVectorShuffleLegal - Return true if a vector shuffle is legal with the 2374352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// specified mask and type. Targets can specify exactly which masks they 2384352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// support and the code generator is tasked with not creating illegal masks. 2394352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// 2404352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// Note that this will also return true for shuffles that are promoted to a 2414352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// different type. 2424352cc9e217e4482ad53f5a7b92c3543f569eb6eChris LattnerSDNode *SelectionDAGLegalize::isShuffleLegal(MVT::ValueType VT, 2434352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner SDOperand Mask) const { 2444352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner switch (TLI.getOperationAction(ISD::VECTOR_SHUFFLE, VT)) { 2454352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner default: return 0; 2464352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Legal: 2474352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Custom: 2484352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 2494352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Promote: { 2504352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // If this is promoted to a different type, convert the shuffle mask and 2514352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // ask if it is legal in the promoted type! 2524352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner MVT::ValueType NVT = TLI.getTypeToPromoteTo(ISD::VECTOR_SHUFFLE, VT); 2534352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 2544352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // If we changed # elements, change the shuffle mask. 2554352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner unsigned NumEltsGrowth = 2564352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner MVT::getVectorNumElements(NVT) / MVT::getVectorNumElements(VT); 2574352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner assert(NumEltsGrowth && "Cannot promote to vector type with fewer elts!"); 2584352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (NumEltsGrowth > 1) { 2594352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Renumber the elements. 260bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Ops; 2614352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner for (unsigned i = 0, e = Mask.getNumOperands(); i != e; ++i) { 2624352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner SDOperand InOp = Mask.getOperand(i); 2634352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner for (unsigned j = 0; j != NumEltsGrowth; ++j) { 2644352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (InOp.getOpcode() == ISD::UNDEF) 2654352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Ops.push_back(DAG.getNode(ISD::UNDEF, MVT::i32)); 2664352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner else { 2674352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner unsigned InEltNo = cast<ConstantSDNode>(InOp)->getValue(); 2684352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Ops.push_back(DAG.getConstant(InEltNo*NumEltsGrowth+j, MVT::i32)); 2694352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2704352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2714352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 272bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Mask = DAG.getNode(ISD::BUILD_VECTOR, NVT, &Ops[0], Ops.size()); 2734352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2744352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner VT = NVT; 2754352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 2764352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2774352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2784352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner return TLI.isShuffleMaskLegal(Mask, VT) ? Mask.Val : 0; 2794352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner} 2804352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 281c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// getScalarizedOpcode - Return the scalar opcode that corresponds to the 282c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// specified vector opcode. 283b89175feffa7148c05d1d30a8e382b8d321edae5Chris Lattnerstatic unsigned getScalarizedOpcode(unsigned VecOp, MVT::ValueType VT) { 2845fbb5d2459a5410590f285250faa604576308a93Nate Begeman switch (VecOp) { 2855fbb5d2459a5410590f285250faa604576308a93Nate Begeman default: assert(0 && "Don't know how to scalarize this opcode!"); 2863e1ce5a44d3d59b2b9ca68a21261f0f487d69269Evan Cheng case ISD::VADD: return MVT::isInteger(VT) ? ISD::ADD : ISD::FADD; 2873e1ce5a44d3d59b2b9ca68a21261f0f487d69269Evan Cheng case ISD::VSUB: return MVT::isInteger(VT) ? ISD::SUB : ISD::FSUB; 2883e1ce5a44d3d59b2b9ca68a21261f0f487d69269Evan Cheng case ISD::VMUL: return MVT::isInteger(VT) ? ISD::MUL : ISD::FMUL; 2893e1ce5a44d3d59b2b9ca68a21261f0f487d69269Evan Cheng case ISD::VSDIV: return MVT::isInteger(VT) ? ISD::SDIV: ISD::FDIV; 2903e1ce5a44d3d59b2b9ca68a21261f0f487d69269Evan Cheng case ISD::VUDIV: return MVT::isInteger(VT) ? ISD::UDIV: ISD::FDIV; 2913e1ce5a44d3d59b2b9ca68a21261f0f487d69269Evan Cheng case ISD::VAND: return MVT::isInteger(VT) ? ISD::AND : 0; 2923e1ce5a44d3d59b2b9ca68a21261f0f487d69269Evan Cheng case ISD::VOR: return MVT::isInteger(VT) ? ISD::OR : 0; 2933e1ce5a44d3d59b2b9ca68a21261f0f487d69269Evan Cheng case ISD::VXOR: return MVT::isInteger(VT) ? ISD::XOR : 0; 2945fbb5d2459a5410590f285250faa604576308a93Nate Begeman } 2955fbb5d2459a5410590f285250faa604576308a93Nate Begeman} 2963e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 2979c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris LattnerSelectionDAGLegalize::SelectionDAGLegalize(SelectionDAG &dag) 2989c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner : TLI(dag.getTargetLoweringInfo()), DAG(dag), 2999c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner ValueTypeActions(TLI.getValueTypeActions()) { 3006a648614e88586e85a36ceb5c1d3b84e4f55b458Nate Begeman assert(MVT::LAST_VALUETYPE <= 32 && 3013e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner "Too many value types for ValueTypeActions to hold!"); 3023e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 3033e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 30432fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner/// ComputeTopDownOrdering - Add the specified node to the Order list if it has 30532fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner/// not been visited yet and if all of its operands have already been visited. 3060ed44170752b85c3dd3bbf95459dd2668864f5ecChris Lattnerstatic void ComputeTopDownOrdering(SDNode *N, SmallVector<SDNode*, 64> &Order, 3077971514755a08ec156a1b9c0f7f05d67919c56b7Chris Lattner DenseMap<SDNode*, unsigned> &Visited) { 30832fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner if (++Visited[N] != N->getNumOperands()) 30932fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner return; // Haven't visited all operands yet 31032fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 31132fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner Order.push_back(N); 31232fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 31332fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner if (N->hasOneUse()) { // Tail recurse in common case. 31432fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner ComputeTopDownOrdering(*N->use_begin(), Order, Visited); 31532fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner return; 31632fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner } 31732fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 31832fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // Now that we have N in, add anything that uses it if all of their operands 31932fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // are now done. 32032fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner for (SDNode::use_iterator UI = N->use_begin(), E = N->use_end(); UI != E;++UI) 32132fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner ComputeTopDownOrdering(*UI, Order, Visited); 32232fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner} 32332fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 3241618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner 3253e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnervoid SelectionDAGLegalize::LegalizeDAG() { 3266831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 3276831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = false; 3286831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 329ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // The legalize process is inherently a bottom-up recursive process (users 330ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // legalize their uses before themselves). Given infinite stack space, we 331ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // could just start legalizing on the root and traverse the whole graph. In 332ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // practice however, this causes us to run out of stack space on large basic 33332fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // blocks. To avoid this problem, compute an ordering of the nodes where each 33432fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // node is only legalized after all of its operands are legalized. 3357971514755a08ec156a1b9c0f7f05d67919c56b7Chris Lattner DenseMap<SDNode*, unsigned> Visited; 3360ed44170752b85c3dd3bbf95459dd2668864f5ecChris Lattner SmallVector<SDNode*, 64> Order; 337ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner 33832fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // Compute ordering from all of the leaves in the graphs, those (like the 33932fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // entry node) that have no operands. 34032fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner for (SelectionDAG::allnodes_iterator I = DAG.allnodes_begin(), 34132fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner E = DAG.allnodes_end(); I != E; ++I) { 342de202b3cda00f17ba2c047be7270b51f9585a413Chris Lattner if (I->getNumOperands() == 0) { 343de202b3cda00f17ba2c047be7270b51f9585a413Chris Lattner Visited[I] = 0 - 1U; 344de202b3cda00f17ba2c047be7270b51f9585a413Chris Lattner ComputeTopDownOrdering(I, Order, Visited); 345ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner } 346ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner } 347ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner 348de202b3cda00f17ba2c047be7270b51f9585a413Chris Lattner assert(Order.size() == Visited.size() && 349de202b3cda00f17ba2c047be7270b51f9585a413Chris Lattner Order.size() == 350de202b3cda00f17ba2c047be7270b51f9585a413Chris Lattner (unsigned)std::distance(DAG.allnodes_begin(), DAG.allnodes_end()) && 35132fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner "Error: DAG is cyclic!"); 35232fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner Visited.clear(); 353ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner 354c7029805ef35ce9805931067b841e6af11db382eChris Lattner for (unsigned i = 0, e = Order.size(); i != e; ++i) 355c7029805ef35ce9805931067b841e6af11db382eChris Lattner HandleOp(SDOperand(Order[i], 0)); 35632fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 35732fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // Finally, it's possible the root changed. Get the new root. 3583e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand OldRoot = DAG.getRoot(); 35932fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner assert(LegalizedNodes.count(OldRoot) && "Root didn't get legalized?"); 36032fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner DAG.setRoot(LegalizedNodes[OldRoot]); 3613e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 3623e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandedNodes.clear(); 3633e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner LegalizedNodes.clear(); 36471c42a0190300a8903aaea80467b88f15f327ea9Chris Lattner PromotedNodes.clear(); 365c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitNodes.clear(); 366c7029805ef35ce9805931067b841e6af11db382eChris Lattner PackedNodes.clear(); 3673e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 3683e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Remove dead nodes now. 369190a418bf6b49a4ef1c1980229a2f0d516e8a2cdChris Lattner DAG.RemoveDeadNodes(); 3703e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 3713e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 3726831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3736831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// FindCallEndFromCallStart - Given a chained node that is part of a call 3746831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// sequence, find the CALLSEQ_END node that terminates the call sequence. 3756831a815999dde4cf801e2076e66b4943964daf2Chris Lattnerstatic SDNode *FindCallEndFromCallStart(SDNode *Node) { 3766831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->getOpcode() == ISD::CALLSEQ_END) 3776831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Node; 3786831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->use_empty()) 3796831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return 0; // No CallSeqEnd 3806831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3816831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // The chain is usually at the end. 3826831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand TheChain(Node, Node->getNumValues()-1); 3836831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (TheChain.getValueType() != MVT::Other) { 3846831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Sometimes it's at the beginning. 3856831a815999dde4cf801e2076e66b4943964daf2Chris Lattner TheChain = SDOperand(Node, 0); 3866831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (TheChain.getValueType() != MVT::Other) { 3876831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Otherwise, hunt for it. 3886831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 1, e = Node->getNumValues(); i != e; ++i) 3896831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->getValueType(i) == MVT::Other) { 3906831a815999dde4cf801e2076e66b4943964daf2Chris Lattner TheChain = SDOperand(Node, i); 3916831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 3926831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3936831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3946831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Otherwise, we walked into a node without a chain. 3956831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (TheChain.getValueType() != MVT::Other) 3966831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return 0; 3976831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3986831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3996831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4006831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (SDNode::use_iterator UI = Node->use_begin(), 4016831a815999dde4cf801e2076e66b4943964daf2Chris Lattner E = Node->use_end(); UI != E; ++UI) { 4026831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4036831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Make sure to only follow users of our token chain. 4046831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDNode *User = *UI; 4056831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = User->getNumOperands(); i != e; ++i) 4066831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (User->getOperand(i) == TheChain) 4076831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (SDNode *Result = FindCallEndFromCallStart(User)) 4086831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Result; 4096831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 4106831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return 0; 4116831a815999dde4cf801e2076e66b4943964daf2Chris Lattner} 4126831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4136831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// FindCallStartFromCallEnd - Given a chained node that is part of a call 4146831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// sequence, find the CALLSEQ_START node that initiates the call sequence. 4156831a815999dde4cf801e2076e66b4943964daf2Chris Lattnerstatic SDNode *FindCallStartFromCallEnd(SDNode *Node) { 4166831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(Node && "Didn't find callseq_start for a call??"); 4176831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->getOpcode() == ISD::CALLSEQ_START) return Node; 4186831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4196831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(Node->getOperand(0).getValueType() == MVT::Other && 4206831a815999dde4cf801e2076e66b4943964daf2Chris Lattner "Node doesn't have a token chain argument!"); 4216831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return FindCallStartFromCallEnd(Node->getOperand(0).Val); 4226831a815999dde4cf801e2076e66b4943964daf2Chris Lattner} 4236831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4246831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// LegalizeAllNodesNotLeadingTo - Recursively walk the uses of N, looking to 4256831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// see if any uses can reach Dest. If no dest operands can get to dest, 4266831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// legalize them, legalize ourself, and return false, otherwise, return true. 427c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// 428c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// Keep track of the nodes we fine that actually do lead to Dest in 429c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// NodesLeadingTo. This avoids retraversing them exponential number of times. 430c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// 431c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattnerbool SelectionDAGLegalize::LegalizeAllNodesNotLeadingTo(SDNode *N, SDNode *Dest, 43200755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner SmallPtrSet<SDNode*, 32> &NodesLeadingTo) { 4336831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (N == Dest) return true; // N certainly leads to Dest :) 4346831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 435c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner // If we've already processed this node and it does lead to Dest, there is no 436c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner // need to reprocess it. 437c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner if (NodesLeadingTo.count(N)) return true; 438c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner 4396831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // If the first result of this node has been already legalized, then it cannot 4406831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // reach N. 4416831a815999dde4cf801e2076e66b4943964daf2Chris Lattner switch (getTypeAction(N->getValueType(0))) { 4426831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Legal: 4436831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (LegalizedNodes.count(SDOperand(N, 0))) return false; 4446831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 4456831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Promote: 4466831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (PromotedNodes.count(SDOperand(N, 0))) return false; 4476831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 4486831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Expand: 4496831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (ExpandedNodes.count(SDOperand(N, 0))) return false; 4506831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 4516831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 4526831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4536831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Okay, this node has not already been legalized. Check and legalize all 4546831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // operands. If none lead to Dest, then we can legalize this node. 4556831a815999dde4cf801e2076e66b4943964daf2Chris Lattner bool OperandsLeadToDest = false; 4566831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i) 4576831a815999dde4cf801e2076e66b4943964daf2Chris Lattner OperandsLeadToDest |= // If an operand leads to Dest, so do we. 458c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner LegalizeAllNodesNotLeadingTo(N->getOperand(i).Val, Dest, NodesLeadingTo); 4596831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 460c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner if (OperandsLeadToDest) { 461c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner NodesLeadingTo.insert(N); 462c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner return true; 463c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner } 4646831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4656831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Okay, this node looks safe, legalize it and return false. 46680edfb3af5ed214c5cd7797b37cb3bb024e98cc6Chris Lattner HandleOp(SDOperand(N, 0)); 4676831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return false; 4686831a815999dde4cf801e2076e66b4943964daf2Chris Lattner} 4696831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 470c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// HandleOp - Legalize, Promote, Expand or Pack the specified operand as 471c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// appropriate for its type. 472c7029805ef35ce9805931067b841e6af11db382eChris Lattnervoid SelectionDAGLegalize::HandleOp(SDOperand Op) { 473c7029805ef35ce9805931067b841e6af11db382eChris Lattner switch (getTypeAction(Op.getValueType())) { 474c7029805ef35ce9805931067b841e6af11db382eChris Lattner default: assert(0 && "Bad type action!"); 475c7029805ef35ce9805931067b841e6af11db382eChris Lattner case Legal: LegalizeOp(Op); break; 476c7029805ef35ce9805931067b841e6af11db382eChris Lattner case Promote: PromoteOp(Op); break; 477c7029805ef35ce9805931067b841e6af11db382eChris Lattner case Expand: 478c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (Op.getValueType() != MVT::Vector) { 479c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand X, Y; 480c7029805ef35ce9805931067b841e6af11db382eChris Lattner ExpandOp(Op, X, Y); 481c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else { 482c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDNode *N = Op.Val; 483c7029805ef35ce9805931067b841e6af11db382eChris Lattner unsigned NumOps = N->getNumOperands(); 484c7029805ef35ce9805931067b841e6af11db382eChris Lattner unsigned NumElements = 485c7029805ef35ce9805931067b841e6af11db382eChris Lattner cast<ConstantSDNode>(N->getOperand(NumOps-2))->getValue(); 486c7029805ef35ce9805931067b841e6af11db382eChris Lattner MVT::ValueType EVT = cast<VTSDNode>(N->getOperand(NumOps-1))->getVT(); 48782dcb4fe23686784a5ad6379860970f1146db50dChris Lattner MVT::ValueType PackedVT = MVT::getVectorType(EVT, NumElements); 488c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (PackedVT != MVT::Other && TLI.isTypeLegal(PackedVT)) { 489c7029805ef35ce9805931067b841e6af11db382eChris Lattner // In the common case, this is a legal vector type, convert it to the 490c7029805ef35ce9805931067b841e6af11db382eChris Lattner // packed operation and type now. 491c7029805ef35ce9805931067b841e6af11db382eChris Lattner PackVectorOp(Op, PackedVT); 492c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else if (NumElements == 1) { 493c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Otherwise, if this is a single element vector, convert it to a 494c7029805ef35ce9805931067b841e6af11db382eChris Lattner // scalar operation. 495c7029805ef35ce9805931067b841e6af11db382eChris Lattner PackVectorOp(Op, EVT); 496c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else { 497c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Otherwise, this is a multiple element vector that isn't supported. 498c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Split it in half and legalize both parts. 499c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand X, Y; 5004794a6b6a09e3440438cd653ec09cf0c2e45be1cChris Lattner SplitVectorOp(Op, X, Y); 501c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 502c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 503c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 504c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 505c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 5066831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 5079f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng/// ExpandConstantFP - Expands the ConstantFP node to an integer constant or 5089f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng/// a load from the constant pool. 5099f87788040786b1bc6530763e4cf7e105bfb2924Evan Chengstatic SDOperand ExpandConstantFP(ConstantFPSDNode *CFP, bool UseCP, 510279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng SelectionDAG &DAG, TargetLowering &TLI) { 511004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng bool Extend = false; 512004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng 513004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // If a FP immediate is precise when represented as a float and if the 514004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // target can do an extending load from float to double, we put it into 515004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // the constant pool as a float, even if it's is statically typed as a 516004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // double. 517004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng MVT::ValueType VT = CFP->getValueType(0); 518004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng bool isDouble = VT == MVT::f64; 519004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng ConstantFP *LLVMC = ConstantFP::get(isDouble ? Type::DoubleTy : 520004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng Type::FloatTy, CFP->getValue()); 5219f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng if (!UseCP) { 522279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng double Val = LLVMC->getValue(); 523279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng return isDouble 524279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng ? DAG.getConstant(DoubleToBits(Val), MVT::i64) 525279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng : DAG.getConstant(FloatToBits(Val), MVT::i32); 526279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng } 527279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng 528004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng if (isDouble && CFP->isExactlyValue((float)CFP->getValue()) && 529004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // Only do this if the target has a native EXTLOAD instruction from f32. 530004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng TLI.isLoadXLegal(ISD::EXTLOAD, MVT::f32)) { 531004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng LLVMC = cast<ConstantFP>(ConstantExpr::getFPTrunc(LLVMC,Type::FloatTy)); 532004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng VT = MVT::f32; 533004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng Extend = true; 534004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 535004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng 536004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng SDOperand CPIdx = DAG.getConstantPool(LLVMC, TLI.getPointerTy()); 537004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng if (Extend) { 538004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng return DAG.getExtLoad(ISD::EXTLOAD, MVT::f64, DAG.getEntryNode(), 539004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng CPIdx, NULL, 0, MVT::f32); 540004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } else { 541004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng return DAG.getLoad(VT, DAG.getEntryNode(), CPIdx, NULL, 0); 542004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 543004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng} 544004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng 5456831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 546912095becac923ff614d7b07728eb345ada67765Evan Cheng/// ExpandFCOPYSIGNToBitwiseOps - Expands fcopysign to a series of bitwise 547912095becac923ff614d7b07728eb345ada67765Evan Cheng/// operations. 548912095becac923ff614d7b07728eb345ada67765Evan Chengstatic 549912095becac923ff614d7b07728eb345ada67765Evan ChengSDOperand ExpandFCOPYSIGNToBitwiseOps(SDNode *Node, MVT::ValueType NVT, 550912095becac923ff614d7b07728eb345ada67765Evan Cheng SelectionDAG &DAG, TargetLowering &TLI) { 551068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng MVT::ValueType VT = Node->getValueType(0); 552912095becac923ff614d7b07728eb345ada67765Evan Cheng MVT::ValueType SrcVT = Node->getOperand(1).getValueType(); 553912095becac923ff614d7b07728eb345ada67765Evan Cheng MVT::ValueType SrcNVT = (SrcVT == MVT::f64) ? MVT::i64 : MVT::i32; 554068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng 555912095becac923ff614d7b07728eb345ada67765Evan Cheng // First get the sign bit of second operand. 556068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng SDOperand Mask1 = (SrcVT == MVT::f64) 557912095becac923ff614d7b07728eb345ada67765Evan Cheng ? DAG.getConstantFP(BitsToDouble(1ULL << 63), SrcVT) 558912095becac923ff614d7b07728eb345ada67765Evan Cheng : DAG.getConstantFP(BitsToFloat(1U << 31), SrcVT); 559068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng Mask1 = DAG.getNode(ISD::BIT_CONVERT, SrcNVT, Mask1); 560912095becac923ff614d7b07728eb345ada67765Evan Cheng SDOperand SignBit= DAG.getNode(ISD::BIT_CONVERT, SrcNVT, Node->getOperand(1)); 561068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng SignBit = DAG.getNode(ISD::AND, SrcNVT, SignBit, Mask1); 562912095becac923ff614d7b07728eb345ada67765Evan Cheng // Shift right or sign-extend it if the two operands have different types. 563912095becac923ff614d7b07728eb345ada67765Evan Cheng int SizeDiff = MVT::getSizeInBits(SrcNVT) - MVT::getSizeInBits(NVT); 564912095becac923ff614d7b07728eb345ada67765Evan Cheng if (SizeDiff > 0) { 565912095becac923ff614d7b07728eb345ada67765Evan Cheng SignBit = DAG.getNode(ISD::SRL, SrcNVT, SignBit, 566912095becac923ff614d7b07728eb345ada67765Evan Cheng DAG.getConstant(SizeDiff, TLI.getShiftAmountTy())); 567912095becac923ff614d7b07728eb345ada67765Evan Cheng SignBit = DAG.getNode(ISD::TRUNCATE, NVT, SignBit); 568912095becac923ff614d7b07728eb345ada67765Evan Cheng } else if (SizeDiff < 0) 569912095becac923ff614d7b07728eb345ada67765Evan Cheng SignBit = DAG.getNode(ISD::SIGN_EXTEND, NVT, SignBit); 570068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng 571068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng // Clear the sign bit of first operand. 572068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng SDOperand Mask2 = (VT == MVT::f64) 573068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng ? DAG.getConstantFP(BitsToDouble(~(1ULL << 63)), VT) 574068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng : DAG.getConstantFP(BitsToFloat(~(1U << 31)), VT); 575068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng Mask2 = DAG.getNode(ISD::BIT_CONVERT, NVT, Mask2); 576912095becac923ff614d7b07728eb345ada67765Evan Cheng SDOperand Result = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 577068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng Result = DAG.getNode(ISD::AND, NVT, Result, Mask2); 578068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng 579068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng // Or the value with the sign bit. 580912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = DAG.getNode(ISD::OR, NVT, Result, SignBit); 581912095becac923ff614d7b07728eb345ada67765Evan Cheng return Result; 582912095becac923ff614d7b07728eb345ada67765Evan Cheng} 583912095becac923ff614d7b07728eb345ada67765Evan Cheng 584912095becac923ff614d7b07728eb345ada67765Evan Cheng 585c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// LegalizeOp - We know that the specified value has a legal type. 586c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// Recursively ensure that the operands have legal types, then return the 587c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// result. 5883e928bbd6153eb08641cbd0ad7d8487378a8b12aChris LattnerSDOperand SelectionDAGLegalize::LegalizeOp(SDOperand Op) { 589c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner assert(isTypeLegal(Op.getValueType()) && 590e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner "Caller should expand or promote operands that are not legal!"); 59145982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner SDNode *Node = Op.Val; 592e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner 5933e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // If this operation defines any values that cannot be represented in a 594e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner // register on this target, make sure to expand or promote them. 59545982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner if (Node->getNumValues() > 1) { 59645982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 597c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (getTypeAction(Node->getValueType(i)) != Legal) { 598c7029805ef35ce9805931067b841e6af11db382eChris Lattner HandleOp(Op.getValue(i)); 5993e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(LegalizedNodes.count(Op) && 600c7029805ef35ce9805931067b841e6af11db382eChris Lattner "Handling didn't add legal operands!"); 60103c8546ec57523970874917854a2fb77b1ff598eChris Lattner return LegalizedNodes[Op]; 6023e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 6033e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 6043e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 60545982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // Note that LegalizeOp may be reentered even from single-use nodes, which 60645982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // means that we always must cache transformed nodes. 607718071c476014cb0aaff9c7d018120d5a8930217Chris Lattner DenseMap<SDOperand, SDOperand>::iterator I = LegalizedNodes.find(Op); 608e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner if (I != LegalizedNodes.end()) return I->second; 6093e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 6109373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman SDOperand Tmp1, Tmp2, Tmp3, Tmp4; 6113e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand Result = Op; 612456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner bool isCustom = false; 613456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 6143e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getOpcode()) { 615948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::FrameIndex: 616948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::EntryToken: 617948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::Register: 618948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::BasicBlock: 619948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetFrameIndex: 62037efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::TargetJumpTable: 621948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetConstant: 6223181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner case ISD::TargetConstantFP: 623948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetConstantPool: 624948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetGlobalAddress: 625b3a0417cad8b625acc3033bd5e24afb9ffd0b084Lauro Ramos Venancio case ISD::TargetGlobalTLSAddress: 626948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetExternalSymbol: 627948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::VALUETYPE: 628948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::SRCVALUE: 629948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::STRING: 630948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::CONDCODE: 631948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner // Primitives must all be legal. 632948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner assert(TLI.isOperationLegal(Node->getValueType(0), Node->getValueType(0)) && 633948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner "This must be legal!"); 634948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner break; 6353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner default: 636d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner if (Node->getOpcode() >= ISD::BUILTIN_OP_END) { 637d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // If this is a target node, legalize it by legalizing the operands then 638d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // passing it through. 639f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 640c5d7d7c715f7b7a4eeea1ceaafefc3d1d6df2addChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 641d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 642c5d7d7c715f7b7a4eeea1ceaafefc3d1d6df2addChris Lattner 643f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result.getValue(0), &Ops[0], Ops.size()); 644d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner 645d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 646d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner AddLegalizedOperand(Op.getValue(i), Result.getValue(i)); 647d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner return Result.getValue(Op.ResNo); 648d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner } 649d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // Otherwise this is an unhandled builtin node. splat. 650e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 651832171cb9724d2d31c8dfb73172e2be8f6dd13eeBill Wendling cerr << "NODE: "; Node->dump(); cerr << "\n"; 652e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 6533e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(0 && "Do not know how to legalize this operator!"); 6543e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner abort(); 6550d3b67809ccab229a03db8c1bede852fb89eb081Lauro Ramos Venancio case ISD::GLOBAL_OFFSET_TABLE: 6563e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::GlobalAddress: 657b3a0417cad8b625acc3033bd5e24afb9ffd0b084Lauro Ramos Venancio case ISD::GlobalTLSAddress: 65803c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::ExternalSymbol: 65937efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::ConstantPool: 66037efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::JumpTable: // Nothing to do. 6610c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 6620c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner default: assert(0 && "This action is not supported yet!"); 663948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case TargetLowering::Custom: 664948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner Tmp1 = TLI.LowerOperation(Op, DAG); 665948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner if (Tmp1.Val) Result = Tmp1; 666948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner // FALLTHROUGH if the target doesn't want to lower this op after all. 6670c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner case TargetLowering::Legal: 6680c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner break; 6690c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner } 6703e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 671bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman case ISD::FRAMEADDR: 672bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman case ISD::RETURNADDR: 673bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman // The only option for these nodes is to custom lower them. If the target 674bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman // does not custom lower them, then return zero. 675bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman Tmp1 = TLI.LowerOperation(Op, DAG); 676bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman if (Tmp1.Val) 677bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman Result = Tmp1; 678bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman else 679bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman Result = DAG.getConstant(0, TLI.getPointerTy()); 680bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman break; 6812bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey case ISD::EXCEPTIONADDR: { 6822bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); 6832bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey MVT::ValueType VT = Node->getValueType(0); 6842bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 6852bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey default: assert(0 && "This action is not supported yet!"); 6862bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey case TargetLowering::Expand: { 6878782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey unsigned Reg = TLI.getExceptionAddressRegister(); 6882bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey Result = DAG.getCopyFromReg(Tmp1, Reg, VT).getValue(Op.ResNo); 6892bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey } 6902bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey break; 6912bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey case TargetLowering::Custom: 6922bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey Result = TLI.LowerOperation(Op, DAG); 6932bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey if (Result.Val) break; 6942bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey // Fall Thru 695eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner case TargetLowering::Legal: { 696eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner SDOperand Ops[] = { DAG.getConstant(0, VT), Tmp1 }; 697eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner Result = DAG.getNode(ISD::MERGE_VALUES, DAG.getVTList(VT, MVT::Other), 698eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner Ops, 2).getValue(Op.ResNo); 6998782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey break; 7008782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey } 7018782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey } 702eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner } 7038782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey break; 7048782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey case ISD::EHSELECTION: { 7058782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); 7068782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey Tmp2 = LegalizeOp(Node->getOperand(1)); 7078782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey MVT::ValueType VT = Node->getValueType(0); 7088782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 7098782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey default: assert(0 && "This action is not supported yet!"); 7108782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey case TargetLowering::Expand: { 7118782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey unsigned Reg = TLI.getExceptionSelectorRegister(); 7128782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey Result = DAG.getCopyFromReg(Tmp2, Reg, VT).getValue(Op.ResNo); 7138782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey } 7148782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey break; 7158782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey case TargetLowering::Custom: 7168782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey Result = TLI.LowerOperation(Op, DAG); 7178782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey if (Result.Val) break; 7188782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey // Fall Thru 719eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner case TargetLowering::Legal: { 720eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner SDOperand Ops[] = { DAG.getConstant(0, VT), Tmp2 }; 721eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner Result = DAG.getNode(ISD::MERGE_VALUES, DAG.getVTList(VT, MVT::Other), 722eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner Ops, 2).getValue(Op.ResNo); 7232bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey break; 7242bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey } 7252bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey } 726eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner } 7272bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey break; 72808951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner case ISD::AssertSext: 72908951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner case ISD::AssertZext: 73008951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 731c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 73208951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner break; 733308575be66ec3870d27b19df044fda18448feb41Chris Lattner case ISD::MERGE_VALUES: 734c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner // Legalize eliminates MERGE_VALUES nodes. 735456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = Node->getOperand(Op.ResNo); 736456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 73769a52155d2eff066b49dbac385113002fd9dba14Chris Lattner case ISD::CopyFromReg: 73869a52155d2eff066b49dbac385113002fd9dba14Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 7397310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner Result = Op.getValue(0); 740f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner if (Node->getNumValues() == 2) { 741c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 7427310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } else { 743f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner assert(Node->getNumValues() == 3 && "Invalid copyfromreg!"); 744c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Node->getNumOperands() == 3) { 745f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(2)); 746c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1),Tmp2); 747c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else { 748c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 749c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } 7507310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner AddLegalizedOperand(Op.getValue(2), Result.getValue(2)); 7517310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 75213c184de29c09294ed63b01ac43e1b46c049278eChris Lattner // Since CopyFromReg produces two values, make sure to remember that we 75313c184de29c09294ed63b01ac43e1b46c049278eChris Lattner // legalized both of them. 75413c184de29c09294ed63b01ac43e1b46c049278eChris Lattner AddLegalizedOperand(Op.getValue(0), Result); 75513c184de29c09294ed63b01ac43e1b46c049278eChris Lattner AddLegalizedOperand(Op.getValue(1), Result.getValue(1)); 75613c184de29c09294ed63b01ac43e1b46c049278eChris Lattner return Result.getValue(Op.ResNo); 757fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: { 758fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman MVT::ValueType VT = Op.getValueType(); 759fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman switch (TLI.getOperationAction(ISD::UNDEF, VT)) { 760ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman default: assert(0 && "This action is not supported yet!"); 761ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman case TargetLowering::Expand: 762fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman if (MVT::isInteger(VT)) 763fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Result = DAG.getConstant(0, VT); 764fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman else if (MVT::isFloatingPoint(VT)) 765fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Result = DAG.getConstantFP(0, VT); 766fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman else 767fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman assert(0 && "Unknown value type!"); 768fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 769ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman case TargetLowering::Legal: 770fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 771fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman } 772fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 773fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman } 774d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner 77548b61a729df6576c8833a83893d4086bddff69a5Chris Lattner case ISD::INTRINSIC_W_CHAIN: 77648b61a729df6576c8833a83893d4086bddff69a5Chris Lattner case ISD::INTRINSIC_WO_CHAIN: 77748b61a729df6576c8833a83893d4086bddff69a5Chris Lattner case ISD::INTRINSIC_VOID: { 778f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 779d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 780d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 781f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 78210d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner 78310d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner // Allow the target to custom lower its intrinsics if it wants to. 78448b61a729df6576c8833a83893d4086bddff69a5Chris Lattner if (TLI.getOperationAction(Node->getOpcode(), MVT::Other) == 78510d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner TargetLowering::Custom) { 78610d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 78710d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner if (Tmp3.Val) Result = Tmp3; 78813fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner } 78913fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner 79013fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner if (Result.Val->getNumValues() == 1) break; 79113fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner 79213fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner // Must have return value and chain result. 79313fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner assert(Result.Val->getNumValues() == 2 && 79413fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner "Cannot return more than two values!"); 79513fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner 79613fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner // Since loads produce two values, make sure to remember that we 79713fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner // legalized both of them. 79813fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 79913fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 80013fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner return Result.getValue(Op.ResNo); 801d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner } 80236ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 80336ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner case ISD::LOCATION: 80436ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner assert(Node->getNumOperands() == 5 && "Invalid LOCATION node!"); 80536ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the input chain. 80636ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 80736ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner switch (TLI.getOperationAction(ISD::LOCATION, MVT::Other)) { 80836ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner case TargetLowering::Promote: 80936ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner default: assert(0 && "This action is not supported yet!"); 810f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey case TargetLowering::Expand: { 81144c3b9fdd416c79f4b67cde1aecfced5921efd81Jim Laskey MachineModuleInfo *MMI = DAG.getMachineModuleInfo(); 812abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey bool useDEBUG_LOC = TLI.isOperationLegal(ISD::DEBUG_LOC, MVT::Other); 8131ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey bool useLABEL = TLI.isOperationLegal(ISD::LABEL, MVT::Other); 814abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 81544c3b9fdd416c79f4b67cde1aecfced5921efd81Jim Laskey if (MMI && (useDEBUG_LOC || useLABEL)) { 816abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey const std::string &FName = 817e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey cast<StringSDNode>(Node->getOperand(3))->getValue(); 818abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey const std::string &DirName = 819e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey cast<StringSDNode>(Node->getOperand(4))->getValue(); 82044c3b9fdd416c79f4b67cde1aecfced5921efd81Jim Laskey unsigned SrcFile = MMI->RecordSource(DirName, FName); 821abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 822bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Ops; 823abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(Tmp1); // chain 824abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey SDOperand LineOp = Node->getOperand(1); 825abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey SDOperand ColOp = Node->getOperand(2); 826abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 827abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey if (useDEBUG_LOC) { 828abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(LineOp); // line # 829abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(ColOp); // col # 830abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(DAG.getConstant(SrcFile, MVT::i32)); // source file id 831bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Result = DAG.getNode(ISD::DEBUG_LOC, MVT::Other, &Ops[0], Ops.size()); 832abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } else { 833d0e58e36a9857c45ecdc910ec8db04c21e143db5Jim Laskey unsigned Line = cast<ConstantSDNode>(LineOp)->getValue(); 834d0e58e36a9857c45ecdc910ec8db04c21e143db5Jim Laskey unsigned Col = cast<ConstantSDNode>(ColOp)->getValue(); 83544c3b9fdd416c79f4b67cde1aecfced5921efd81Jim Laskey unsigned ID = MMI->RecordLabel(Line, Col, SrcFile); 836abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(DAG.getConstant(ID, MVT::i32)); 8371ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey Result = DAG.getNode(ISD::LABEL, MVT::Other,&Ops[0],Ops.size()); 838abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } 839e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey } else { 840e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey Result = Tmp1; // chain 841e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey } 84236ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 843e773673d8e0094bbff2f9ab2f2da9ecb5c4d0909Chris Lattner } 84436ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner case TargetLowering::Legal: 8459ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner if (Tmp1 != Node->getOperand(0) || 8469ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner getTypeAction(Node->getOperand(1).getValueType()) == Promote) { 847f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 84836ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Ops.push_back(Tmp1); 8499ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner if (getTypeAction(Node->getOperand(1).getValueType()) == Legal) { 8509ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(Node->getOperand(1)); // line # must be legal. 8519ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(Node->getOperand(2)); // col # must be legal. 8529ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner } else { 8539ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner // Otherwise promote them. 8549ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(PromoteOp(Node->getOperand(1))); 8559ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(PromoteOp(Node->getOperand(2))); 8569ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner } 85736ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Ops.push_back(Node->getOperand(3)); // filename must be legal. 85836ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Ops.push_back(Node->getOperand(4)); // working dir # must be legal. 859f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 86036ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner } 86136ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 86236ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner } 86336ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 864f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey 865f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey case ISD::DEBUG_LOC: 866abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey assert(Node->getNumOperands() == 4 && "Invalid DEBUG_LOC node!"); 867f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey switch (TLI.getOperationAction(ISD::DEBUG_LOC, MVT::Other)) { 868f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey default: assert(0 && "This action is not supported yet!"); 869abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey case TargetLowering::Legal: 870abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 871abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the line #. 872abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the col #. 873abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp4 = LegalizeOp(Node->getOperand(3)); // Legalize the source file id. 874c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4); 875abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey break; 876abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } 877abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey break; 878abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 8791ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey case ISD::LABEL: 8801ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey assert(Node->getNumOperands() == 2 && "Invalid LABEL node!"); 8811ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey switch (TLI.getOperationAction(ISD::LABEL, MVT::Other)) { 882abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey default: assert(0 && "This action is not supported yet!"); 883abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey case TargetLowering::Legal: 884abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 885abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the label id. 886c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 887f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey break; 888a9569f10de686119ff34b89e102b5a3cbafdf195Chris Lattner case TargetLowering::Expand: 889a9569f10de686119ff34b89e102b5a3cbafdf195Chris Lattner Result = LegalizeOp(Node->getOperand(0)); 890a9569f10de686119ff34b89e102b5a3cbafdf195Chris Lattner break; 891f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey } 892551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman break; 89336ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 8943e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::Constant: 8953e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // We know we don't need to expand constants here, constants only have one 8963e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // value and we check that it is fine above. 8973e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 8983e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // FIXME: Maybe we should handle things like targets that don't support full 8993e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // 32-bit immediates? 9003e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 9013e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ConstantFP: { 9023e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Spill FP immediates to the constant pool if the target cannot directly 9033e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // codegen them. Targets often have some immediate values that can be 9043e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // efficiently generated into an FP register without a load. We explicitly 9053e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // leave these constants as ConstantFP nodes for the target to deal with. 9063e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ConstantFPSDNode *CFP = cast<ConstantFPSDNode>(Node); 9073e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 9083e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Check to see if this FP immediate is already legal. 9093e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner bool isLegal = false; 9103e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner for (TargetLowering::legal_fpimm_iterator I = TLI.legal_fpimm_begin(), 9113e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner E = TLI.legal_fpimm_end(); I != E; ++I) 9123e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner if (CFP->isExactlyValue(*I)) { 9133e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner isLegal = true; 9143e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 9153e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 9163e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 9173181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner // If this is a legal constant, turn it into a TargetConstantFP node. 9183181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner if (isLegal) { 9193181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner Result = DAG.getTargetConstantFP(CFP->getValue(), CFP->getValueType(0)); 9203181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner break; 9213181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner } 9223181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner 9233181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner switch (TLI.getOperationAction(ISD::ConstantFP, CFP->getValueType(0))) { 9243181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner default: assert(0 && "This action is not supported yet!"); 9253181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner case TargetLowering::Custom: 9263181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 9273181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner if (Tmp3.Val) { 9283181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner Result = Tmp3; 9293181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner break; 9303181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner } 9313181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner // FALLTHROUGH 9323181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner case TargetLowering::Expand: 933279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng Result = ExpandConstantFP(CFP, true, DAG, TLI); 9343e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 9353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 9363e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 937040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner case ISD::TokenFactor: 938040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner if (Node->getNumOperands() == 2) { 939c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 940c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 941c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 942c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else if (Node->getNumOperands() == 3) { 943c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 944c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 945c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); 946c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 947040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner } else { 948f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 949040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner // Legalize the operands. 950c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 951c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 952f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 953a385e9b20fa7d37d3842ce15afd412f617d83a27Chris Lattner } 954a385e9b20fa7d37d3842ce15afd412f617d83a27Chris Lattner break; 955fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner 956fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner case ISD::FORMAL_ARGUMENTS: 957f4ec817299a4187044a6162c2f520772b3ad69a0Chris Lattner case ISD::CALL: 958fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner // The only option for this is to custom lower it. 959b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp3 = TLI.LowerOperation(Result.getValue(0), DAG); 960b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner assert(Tmp3.Val && "Target didn't custom lower this node!"); 961b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner assert(Tmp3.Val->getNumValues() == Result.Val->getNumValues() && 962b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner "Lowering call/formal_arguments produced unexpected # results!"); 963e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner 964f4ec817299a4187044a6162c2f520772b3ad69a0Chris Lattner // Since CALL/FORMAL_ARGUMENTS nodes produce multiple values, make sure to 965e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner // remember that we legalized all of them, so it doesn't get relegalized. 966b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner for (unsigned i = 0, e = Tmp3.Val->getNumValues(); i != e; ++i) { 967b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp1 = LegalizeOp(Tmp3.getValue(i)); 968e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner if (Op.ResNo == i) 969e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner Tmp2 = Tmp1; 970e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner AddLegalizedOperand(SDOperand(Node, i), Tmp1); 971e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner } 972e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner return Tmp2; 973fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner 974b2827b0901162169bb2692b77a839c9767849134Chris Lattner case ISD::BUILD_VECTOR: 975b2827b0901162169bb2692b77a839c9767849134Chris Lattner switch (TLI.getOperationAction(ISD::BUILD_VECTOR, Node->getValueType(0))) { 9762332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: assert(0 && "This action is not supported yet!"); 9772332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Custom: 9782332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 9792332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner if (Tmp3.Val) { 9802332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = Tmp3; 9812332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 9822332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 9832332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // FALLTHROUGH 984ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case TargetLowering::Expand: 985ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Result = ExpandBUILD_VECTOR(Result.Val); 986b2827b0901162169bb2692b77a839c9767849134Chris Lattner break; 9872332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 9882332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 9892332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case ISD::INSERT_VECTOR_ELT: 9902332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // InVec 9912332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // InVal 9922332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // InEltNo 9932332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 9942332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner 9952332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner switch (TLI.getOperationAction(ISD::INSERT_VECTOR_ELT, 9962332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Node->getValueType(0))) { 9972332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: assert(0 && "This action is not supported yet!"); 9982332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Legal: 9992332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 10002332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Custom: 10012332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 10022332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner if (Tmp3.Val) { 10032332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = Tmp3; 10042332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 10052332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 10062332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // FALLTHROUGH 10072332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Expand: { 10088d5a894501b7546dee94df03118b90126c420820Chris Lattner // If the insert index is a constant, codegen this as a scalar_to_vector, 10098d5a894501b7546dee94df03118b90126c420820Chris Lattner // then a shuffle that inserts it into the right position in the vector. 10108d5a894501b7546dee94df03118b90126c420820Chris Lattner if (ConstantSDNode *InsertPos = dyn_cast<ConstantSDNode>(Tmp3)) { 10118d5a894501b7546dee94df03118b90126c420820Chris Lattner SDOperand ScVec = DAG.getNode(ISD::SCALAR_TO_VECTOR, 10128d5a894501b7546dee94df03118b90126c420820Chris Lattner Tmp1.getValueType(), Tmp2); 10138d5a894501b7546dee94df03118b90126c420820Chris Lattner 10148d5a894501b7546dee94df03118b90126c420820Chris Lattner unsigned NumElts = MVT::getVectorNumElements(Tmp1.getValueType()); 10158d5a894501b7546dee94df03118b90126c420820Chris Lattner MVT::ValueType ShufMaskVT = MVT::getIntVectorWithNumElements(NumElts); 10168d5a894501b7546dee94df03118b90126c420820Chris Lattner MVT::ValueType ShufMaskEltVT = MVT::getVectorBaseType(ShufMaskVT); 10178d5a894501b7546dee94df03118b90126c420820Chris Lattner 10188d5a894501b7546dee94df03118b90126c420820Chris Lattner // We generate a shuffle of InVec and ScVec, so the shuffle mask should 10198d5a894501b7546dee94df03118b90126c420820Chris Lattner // be 0,1,2,3,4,5... with the appropriate element replaced with elt 0 of 10208d5a894501b7546dee94df03118b90126c420820Chris Lattner // the RHS. 1021bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> ShufOps; 10228d5a894501b7546dee94df03118b90126c420820Chris Lattner for (unsigned i = 0; i != NumElts; ++i) { 10238d5a894501b7546dee94df03118b90126c420820Chris Lattner if (i != InsertPos->getValue()) 10248d5a894501b7546dee94df03118b90126c420820Chris Lattner ShufOps.push_back(DAG.getConstant(i, ShufMaskEltVT)); 10258d5a894501b7546dee94df03118b90126c420820Chris Lattner else 10268d5a894501b7546dee94df03118b90126c420820Chris Lattner ShufOps.push_back(DAG.getConstant(NumElts, ShufMaskEltVT)); 10278d5a894501b7546dee94df03118b90126c420820Chris Lattner } 1028bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand ShufMask = DAG.getNode(ISD::BUILD_VECTOR, ShufMaskVT, 1029bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &ShufOps[0], ShufOps.size()); 10308d5a894501b7546dee94df03118b90126c420820Chris Lattner 10318d5a894501b7546dee94df03118b90126c420820Chris Lattner Result = DAG.getNode(ISD::VECTOR_SHUFFLE, Tmp1.getValueType(), 10328d5a894501b7546dee94df03118b90126c420820Chris Lattner Tmp1, ScVec, ShufMask); 10338d5a894501b7546dee94df03118b90126c420820Chris Lattner Result = LegalizeOp(Result); 10348d5a894501b7546dee94df03118b90126c420820Chris Lattner break; 10358d5a894501b7546dee94df03118b90126c420820Chris Lattner } 10368d5a894501b7546dee94df03118b90126c420820Chris Lattner 10372332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // If the target doesn't support this, we have to spill the input vector 10382332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // to a temporary stack slot, update the element, then reload it. This is 10392332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // badness. We could also load the value into a vector register (either 10402332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // with a "move to register" or "extload into register" instruction, then 10412332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // permute it into place, if the idx is a constant and if the idx is 10422332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // supported by the target. 1043f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng MVT::ValueType VT = Tmp1.getValueType(); 1044f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng MVT::ValueType EltVT = Tmp2.getValueType(); 1045f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng MVT::ValueType IdxVT = Tmp3.getValueType(); 1046f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng MVT::ValueType PtrVT = TLI.getPointerTy(); 1047f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng SDOperand StackPtr = CreateStackTemporary(VT); 1048eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Store the vector. 10498b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDOperand Ch = DAG.getStore(DAG.getEntryNode(), Tmp1, StackPtr, NULL, 0); 1050eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng 1051eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Truncate or zero extend offset to target pointer type. 1052f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng unsigned CastOpc = (IdxVT > PtrVT) ? ISD::TRUNCATE : ISD::ZERO_EXTEND; 1053f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng Tmp3 = DAG.getNode(CastOpc, PtrVT, Tmp3); 1054eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Add the offset to the index. 1055f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng unsigned EltSize = MVT::getSizeInBits(EltVT)/8; 1056f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng Tmp3 = DAG.getNode(ISD::MUL, IdxVT, Tmp3,DAG.getConstant(EltSize, IdxVT)); 1057f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng SDOperand StackPtr2 = DAG.getNode(ISD::ADD, IdxVT, Tmp3, StackPtr); 1058eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Store the scalar value. 10598b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Ch = DAG.getStore(Ch, Tmp2, StackPtr2, NULL, 0); 1060eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Load the updated vector. 1061466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getLoad(VT, Ch, StackPtr, NULL, 0); 10622332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 10632332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 10642332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 10652332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 1066ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case ISD::SCALAR_TO_VECTOR: 10674352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (!TLI.isTypeLegal(Node->getOperand(0).getValueType())) { 10684352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = LegalizeOp(ExpandSCALAR_TO_VECTOR(Node)); 10694352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 10704352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 10714352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 1072ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // InVal 1073ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 1074ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner switch (TLI.getOperationAction(ISD::SCALAR_TO_VECTOR, 1075ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Node->getValueType(0))) { 1076ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner default: assert(0 && "This action is not supported yet!"); 1077ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case TargetLowering::Legal: 1078ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 10794d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner case TargetLowering::Custom: 10804d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 10814d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner if (Tmp3.Val) { 10824d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner Result = Tmp3; 10834d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner break; 10844d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner } 10854d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner // FALLTHROUGH 10864352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Expand: 10874352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = LegalizeOp(ExpandSCALAR_TO_VECTOR(Node)); 1088ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 1089ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 1090ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 109187100e0b83b808757bf44dabecd1d1048255d1adChris Lattner case ISD::VECTOR_SHUFFLE: 109287100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the input vectors, 109387100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // but not the shuffle mask. 109487100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 109587100e0b83b808757bf44dabecd1d1048255d1adChris Lattner 109687100e0b83b808757bf44dabecd1d1048255d1adChris Lattner // Allow targets to custom lower the SHUFFLEs they support. 10974352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner switch (TLI.getOperationAction(ISD::VECTOR_SHUFFLE,Result.getValueType())) { 10984352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner default: assert(0 && "Unknown operation action!"); 10994352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Legal: 11004352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner assert(isShuffleLegal(Result.getValueType(), Node->getOperand(2)) && 11014352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner "vector shuffle should not be created if not legal!"); 11024352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 11034352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Custom: 110418dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Tmp3 = TLI.LowerOperation(Result, DAG); 110518dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng if (Tmp3.Val) { 110618dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Result = Tmp3; 110718dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng break; 110818dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 110918dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng // FALLTHROUGH 111018dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng case TargetLowering::Expand: { 111118dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng MVT::ValueType VT = Node->getValueType(0); 111218dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng MVT::ValueType EltVT = MVT::getVectorBaseType(VT); 111318dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng MVT::ValueType PtrVT = TLI.getPointerTy(); 111418dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng SDOperand Mask = Node->getOperand(2); 111518dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng unsigned NumElems = Mask.getNumOperands(); 1116bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand,8> Ops; 111718dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng for (unsigned i = 0; i != NumElems; ++i) { 111818dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng SDOperand Arg = Mask.getOperand(i); 111918dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng if (Arg.getOpcode() == ISD::UNDEF) { 112018dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Ops.push_back(DAG.getNode(ISD::UNDEF, EltVT)); 112118dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } else { 112218dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng assert(isa<ConstantSDNode>(Arg) && "Invalid VECTOR_SHUFFLE mask!"); 112318dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng unsigned Idx = cast<ConstantSDNode>(Arg)->getValue(); 112418dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng if (Idx < NumElems) 112518dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EltVT, Tmp1, 112618dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng DAG.getConstant(Idx, PtrVT))); 112718dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng else 112818dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EltVT, Tmp2, 112918dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng DAG.getConstant(Idx - NumElems, PtrVT))); 113018dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 113118dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 1132bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Result = DAG.getNode(ISD::BUILD_VECTOR, VT, &Ops[0], Ops.size()); 11334352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 113418dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 11354352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Promote: { 11364352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Change base type to a different vector type. 11374352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner MVT::ValueType OVT = Node->getValueType(0); 11384352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 11394352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 11404352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Cast the two input vectors. 11414352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Tmp1 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp1); 11424352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Tmp2 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp2); 11434352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 11444352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Convert the shuffle mask to the right # elements. 11454352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Tmp3 = SDOperand(isShuffleLegal(OVT, Node->getOperand(2)), 0); 11464352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner assert(Tmp3.Val && "Shuffle not legal?"); 11474352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = DAG.getNode(ISD::VECTOR_SHUFFLE, NVT, Tmp1, Tmp2, Tmp3); 11484352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = DAG.getNode(ISD::BIT_CONVERT, OVT, Result); 11494352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 11504352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 115187100e0b83b808757bf44dabecd1d1048255d1adChris Lattner } 115287100e0b83b808757bf44dabecd1d1048255d1adChris Lattner break; 1153384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner 1154384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner case ISD::EXTRACT_VECTOR_ELT: 1155384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 1156384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 1157384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 1158e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner 1159e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner switch (TLI.getOperationAction(ISD::EXTRACT_VECTOR_ELT, 1160e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner Tmp1.getValueType())) { 1161e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner default: assert(0 && "This action is not supported yet!"); 1162e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner case TargetLowering::Legal: 1163e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner break; 1164e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner case TargetLowering::Custom: 1165e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 1166e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner if (Tmp3.Val) { 1167e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner Result = Tmp3; 1168e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner break; 1169e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner } 1170e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner // FALLTHROUGH 11714aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner case TargetLowering::Expand: 11724aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner Result = ExpandEXTRACT_VECTOR_ELT(Result); 1173e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner break; 1174e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner } 1175384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner break; 1176384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner 11771597221eace1c53ce5f84a7018397497d11a8393Chris Lattner case ISD::VEXTRACT_VECTOR_ELT: 11781597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Result = LegalizeOp(LowerVEXTRACT_VECTOR_ELT(Op)); 1179384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner break; 118087100e0b83b808757bf44dabecd1d1048255d1adChris Lattner 11816831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case ISD::CALLSEQ_START: { 11826831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDNode *CallEnd = FindCallEndFromCallStart(Node); 11836831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 11846831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Recursively Legalize all of the inputs of the call end that do not lead 11856831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // to this call start. This ensures that any libcalls that need be inserted 11866831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // are inserted *before* the CALLSEQ_START. 118700755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner {SmallPtrSet<SDNode*, 32> NodesLeadingTo; 11886831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = CallEnd->getNumOperands(); i != e; ++i) 1189c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner LegalizeAllNodesNotLeadingTo(CallEnd->getOperand(i).Val, Node, 1190c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner NodesLeadingTo); 1191c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner } 11926831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 11936831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Now that we legalized all of the inputs (which may have inserted 11946831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // libcalls) create the new CALLSEQ_START node. 11956831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 11966831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 11976831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Merge in the last call, to ensure that this call start after the last 11986831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // call ended. 1199c5d7d7c715f7b7a4eeea1ceaafefc3d1d6df2addChris Lattner if (LastCALLSEQ_END.getOpcode() != ISD::EntryToken) { 1200b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 1201b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp1 = LegalizeOp(Tmp1); 1202b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner } 12036831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 12046831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Do not try to legalize the target-specific arguments (#1+). 12056831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Tmp1 != Node->getOperand(0)) { 1206f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 12076831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Ops[0] = Tmp1; 1208f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 12096831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 12106831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 12116831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Remember that the CALLSEQ_START is legalized. 12124b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(Op.getValue(0), Result); 12134b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner if (Node->getNumValues() == 2) // If this has a flag result, remember it. 12144b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(Op.getValue(1), Result.getValue(1)); 12154b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner 12166831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Now that the callseq_start and all of the non-call nodes above this call 12176831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // sequence have been legalized, legalize the call itself. During this 12186831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // process, no libcalls can/will be inserted, guaranteeing that no calls 12196831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // can overlap. 12206831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "Inconsistent sequentialization of calls!"); 12216831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand InCallSEQ = LastCALLSEQ_END; 12226831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Note that we are selecting this call! 12236831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = SDOperand(CallEnd, 0); 12246831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = true; 12256831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 12266831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalize the call, starting from the CALLSEQ_END. 12276831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(LastCALLSEQ_END); 12286831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "CALLSEQ_END should have cleared this!"); 12296831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Result; 12306831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 123116cd04d26c53c6f81313cafb85f6c0e7a07cdff6Chris Lattner case ISD::CALLSEQ_END: 12326831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // If the CALLSEQ_START node hasn't been legalized first, legalize it. This 12336831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // will cause this node to be legalized as well as handling libcalls right. 12346831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (LastCALLSEQ_END.Val != Node) { 12356831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(SDOperand(FindCallStartFromCallEnd(Node), 0)); 1236718071c476014cb0aaff9c7d018120d5a8930217Chris Lattner DenseMap<SDOperand, SDOperand>::iterator I = LegalizedNodes.find(Op); 12376831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(I != LegalizedNodes.end() && 12386831a815999dde4cf801e2076e66b4943964daf2Chris Lattner "Legalizing the call start should have legalized this node!"); 12396831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return I->second; 12406831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 12416831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 12426831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Otherwise, the call start has been legalized and everything is going 12436831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // according to plan. Just legalize ourselves normally here. 12443e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 124570814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner // Do not try to legalize the target-specific arguments (#1+), except for 124670814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner // an optional flag input. 124770814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Node->getOperand(Node->getNumOperands()-1).getValueType() != MVT::Flag){ 124870814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Tmp1 != Node->getOperand(0)) { 1249f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 125070814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops[0] = Tmp1; 1251f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 125270814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } 125370814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } else { 125470814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Tmp2 = LegalizeOp(Node->getOperand(Node->getNumOperands()-1)); 125570814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Tmp1 != Node->getOperand(0) || 125670814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Tmp2 != Node->getOperand(Node->getNumOperands()-1)) { 1257f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 125870814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops[0] = Tmp1; 125970814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops.back() = Tmp2; 1260f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 126170814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } 12626a5428934ba6159c1acc541944332e51a6cfa59aChris Lattner } 12634b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner assert(IsLegalizingCall && "Call sequence imbalance between start/end?"); 12646831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // This finishes up call legalization. 12656831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = false; 12664b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner 12674b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner // If the CALLSEQ_END node has a flag, remember that we legalized it. 12684b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 12694b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner if (Node->getNumValues() == 2) 12704b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 12714b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner return Result.getValue(Op.ResNo); 1272a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng case ISD::DYNAMIC_STACKALLOC: { 1273fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1274fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the size. 1275fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the alignment. 1276c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1277fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner 1278c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = Result.getValue(0); 12795f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner Tmp2 = Result.getValue(1); 1280a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), 1281a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng Node->getValueType(0))) { 1282a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng default: assert(0 && "This action is not supported yet!"); 1283903d278a9b7398d8905c90832e587e0556c52789Chris Lattner case TargetLowering::Expand: { 1284903d278a9b7398d8905c90832e587e0556c52789Chris Lattner unsigned SPReg = TLI.getStackPointerRegisterToSaveRestore(); 1285903d278a9b7398d8905c90832e587e0556c52789Chris Lattner assert(SPReg && "Target cannot require DYNAMIC_STACKALLOC expansion and" 1286903d278a9b7398d8905c90832e587e0556c52789Chris Lattner " not tell us which reg is the stack pointer!"); 1287903d278a9b7398d8905c90832e587e0556c52789Chris Lattner SDOperand Chain = Tmp1.getOperand(0); 1288903d278a9b7398d8905c90832e587e0556c52789Chris Lattner SDOperand Size = Tmp2.getOperand(1); 1289903d278a9b7398d8905c90832e587e0556c52789Chris Lattner SDOperand SP = DAG.getCopyFromReg(Chain, SPReg, Node->getValueType(0)); 1290903d278a9b7398d8905c90832e587e0556c52789Chris Lattner Tmp1 = DAG.getNode(ISD::SUB, Node->getValueType(0), SP, Size); // Value 1291903d278a9b7398d8905c90832e587e0556c52789Chris Lattner Tmp2 = DAG.getCopyToReg(SP.getValue(1), SPReg, Tmp1); // Output chain 1292c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp1); 1293c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp2); 1294903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1295903d278a9b7398d8905c90832e587e0556c52789Chris Lattner } 1296903d278a9b7398d8905c90832e587e0556c52789Chris Lattner case TargetLowering::Custom: 12975f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner Tmp3 = TLI.LowerOperation(Tmp1, DAG); 12985f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner if (Tmp3.Val) { 1299c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp3); 1300c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp3.getValue(1)); 1301a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 1302903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1303a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng case TargetLowering::Legal: 1304903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1305a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 1306903d278a9b7398d8905c90832e587e0556c52789Chris Lattner // Since this op produce two values, make sure to remember that we 1307903d278a9b7398d8905c90832e587e0556c52789Chris Lattner // legalized both of them. 1308c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 1309c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 1310903d278a9b7398d8905c90832e587e0556c52789Chris Lattner return Op.ResNo ? Tmp2 : Tmp1; 1311a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 131225a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner case ISD::INLINEASM: { 1313f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 131425a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner bool Changed = false; 131525a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner // Legalize all of the operands of the inline asm, in case they are nodes 131625a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner // that need to be expanded or something. Note we skip the asm string and 131725a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner // all of the TargetConstant flags. 131825a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner SDOperand Op = LegalizeOp(Ops[0]); 131925a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Changed = Op != Ops[0]; 132025a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Ops[0] = Op; 132125a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner 132225a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner bool HasInFlag = Ops.back().getValueType() == MVT::Flag; 132325a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner for (unsigned i = 2, e = Ops.size()-HasInFlag; i < e; ) { 132425a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner unsigned NumVals = cast<ConstantSDNode>(Ops[i])->getValue() >> 3; 132525a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner for (++i; NumVals; ++i, --NumVals) { 132625a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner SDOperand Op = LegalizeOp(Ops[i]); 132725a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner if (Op != Ops[i]) { 132825a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Changed = true; 132925a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Ops[i] = Op; 133025a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 133125a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 133225a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 133325a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner 133425a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner if (HasInFlag) { 133525a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Op = LegalizeOp(Ops.back()); 133625a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Changed |= Op != Ops.back(); 133725a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Ops.back() = Op; 133825a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 1339ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner 134025a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner if (Changed) 1341f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 1342ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner 1343ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner // INLINE asm returns a chain and flag, make sure to add both to the map. 1344c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 1345ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 1346ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner return Result.getValue(Op.ResNo); 134725a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 1348c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner case ISD::BR: 1349c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 13506831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a branch. 13516831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 13526831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 13536831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 13546831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 1355c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 1356c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner break; 135737efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::BRIND: 135837efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 135937efe6764568a3829fee26aba532283131d1a104Nate Begeman // Ensure that libcalls are emitted before a branch. 136037efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 136137efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp1 = LegalizeOp(Tmp1); 136237efe6764568a3829fee26aba532283131d1a104Nate Begeman LastCALLSEQ_END = DAG.getEntryNode(); 136337efe6764568a3829fee26aba532283131d1a104Nate Begeman 136437efe6764568a3829fee26aba532283131d1a104Nate Begeman switch (getTypeAction(Node->getOperand(1).getValueType())) { 136537efe6764568a3829fee26aba532283131d1a104Nate Begeman default: assert(0 && "Indirect target must be legal type (pointer)!"); 136637efe6764568a3829fee26aba532283131d1a104Nate Begeman case Legal: 136737efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the condition. 136837efe6764568a3829fee26aba532283131d1a104Nate Begeman break; 136937efe6764568a3829fee26aba532283131d1a104Nate Begeman } 137037efe6764568a3829fee26aba532283131d1a104Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 137137efe6764568a3829fee26aba532283131d1a104Nate Begeman break; 13723d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case ISD::BR_JT: 13733d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 13743d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // Ensure that libcalls are emitted before a branch. 13753d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 13763d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = LegalizeOp(Tmp1); 13773d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng LastCALLSEQ_END = DAG.getEntryNode(); 13783d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng 13793d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the jumptable node. 13803d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 13813d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng 13823d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng switch (TLI.getOperationAction(ISD::BR_JT, MVT::Other)) { 13833d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng default: assert(0 && "This action is not supported yet!"); 13843d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case TargetLowering::Legal: break; 13853d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case TargetLowering::Custom: 13863d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 13873d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng if (Tmp1.Val) Result = Tmp1; 13883d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng break; 13893d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case TargetLowering::Expand: { 13903d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Chain = Result.getOperand(0); 13913d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Table = Result.getOperand(1); 13923d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Index = Result.getOperand(2); 13933d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng 13943d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng MVT::ValueType PTy = TLI.getPointerTy(); 1395acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey MachineFunction &MF = DAG.getMachineFunction(); 1396acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey unsigned EntrySize = MF.getJumpTableInfo()->getEntrySize(); 13973d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Index= DAG.getNode(ISD::MUL, PTy, Index, DAG.getConstant(EntrySize, PTy)); 13983d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Addr = DAG.getNode(ISD::ADD, PTy, Index, Table); 1399acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey 1400acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey SDOperand LD; 1401acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey switch (EntrySize) { 1402acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey default: assert(0 && "Size of jump table not supported yet."); break; 1403acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey case 4: LD = DAG.getLoad(MVT::i32, Chain, Addr, NULL, 0); break; 1404acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey case 8: LD = DAG.getLoad(MVT::i64, Chain, Addr, NULL, 0); break; 1405acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey } 1406acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey 1407acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey if (TLI.getTargetMachine().getRelocationModel() == Reloc::PIC_) { 14083d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // For PIC, the sequence is: 14093d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // BRIND(load(Jumptable + index) + RelocBase) 14103d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // RelocBase is the JumpTable on PPC and X86, GOT on Alpha 14113d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Reloc; 14123d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng if (TLI.usesGlobalOffsetTable()) 14133d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Reloc = DAG.getNode(ISD::GLOBAL_OFFSET_TABLE, PTy); 14143d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng else 14153d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Reloc = Table; 1416d063189c0958536aae7ecebec5676541b2cdef9bEvan Cheng Addr = (PTy != MVT::i32) ? DAG.getNode(ISD::SIGN_EXTEND, PTy, LD) : LD; 14173d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Addr = DAG.getNode(ISD::ADD, PTy, Addr, Reloc); 14183d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Result = DAG.getNode(ISD::BRIND, MVT::Other, LD.getValue(1), Addr); 14193d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } else { 14203d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Result = DAG.getNode(ISD::BRIND, MVT::Other, LD.getValue(1), LD); 14213d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } 14223d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } 14233d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } 14243d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng break; 1425c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner case ISD::BRCOND: 1426c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 14276831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a return. 14286831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 14296831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 14306831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 14316831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 143247e9223e06390897c3834f8c527001df392570ffChris Lattner switch (getTypeAction(Node->getOperand(1).getValueType())) { 143347e9223e06390897c3834f8c527001df392570ffChris Lattner case Expand: assert(0 && "It's impossible to expand bools"); 143447e9223e06390897c3834f8c527001df392570ffChris Lattner case Legal: 143547e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the condition. 143647e9223e06390897c3834f8c527001df392570ffChris Lattner break; 143747e9223e06390897c3834f8c527001df392570ffChris Lattner case Promote: 143847e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the condition. 1439f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner 1440f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner // The top bits of the promoted condition are not necessarily zero, ensure 1441f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner // that the value is properly zero extended. 1442f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner if (!TLI.MaskedValueIsZero(Tmp2, 1443f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner MVT::getIntVTBitMask(Tmp2.getValueType())^1)) 1444f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner Tmp2 = DAG.getZeroExtendInReg(Tmp2, MVT::i1); 144547e9223e06390897c3834f8c527001df392570ffChris Lattner break; 144647e9223e06390897c3834f8c527001df392570ffChris Lattner } 1447456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1448456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Basic block destination (Op#2) is always legal. 1449c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 14507cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman 14517cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman switch (TLI.getOperationAction(ISD::BRCOND, MVT::Other)) { 14527cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman default: assert(0 && "This action is not supported yet!"); 1453456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1454456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1455456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 1456456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 1457456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 14587cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman case TargetLowering::Expand: 14597cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // Expand brcond's setcc into its constituent parts and create a BR_CC 14607cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // Node. 14617cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman if (Tmp2.getOpcode() == ISD::SETCC) { 14627cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Result = DAG.getNode(ISD::BR_CC, MVT::Other, Tmp1, Tmp2.getOperand(2), 14637cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Tmp2.getOperand(0), Tmp2.getOperand(1), 14647cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Node->getOperand(2)); 14657cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } else { 14667cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Result = DAG.getNode(ISD::BR_CC, MVT::Other, Tmp1, 14677cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman DAG.getCondCode(ISD::SETNE), Tmp2, 14687cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman DAG.getConstant(0, Tmp2.getValueType()), 14697cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Node->getOperand(2)); 14707cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 14717cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman break; 14727cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 14737cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman break; 14747cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman case ISD::BR_CC: 14757cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 14766831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a branch. 14776831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 14786831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 1479750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(2); // LHS 1480750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = Node->getOperand(3); // RHS 1481750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp4 = Node->getOperand(1); // CC 1482181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner 1483750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp2, Tmp3, Tmp4); 1484722cb360690e5d7742b01a9f497fdb65bf8079d5Evan Cheng LastCALLSEQ_END = DAG.getEntryNode(); 1485722cb360690e5d7742b01a9f497fdb65bf8079d5Evan Cheng 1486750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we didn't get both a LHS and RHS back from LegalizeSetCCOperands, 1487750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the LHS is a legal SETCC itself. In this case, we need to compare 1488750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the result against zero to select between true and false values. 1489750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp3.Val == 0) { 1490750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = DAG.getConstant(0, Tmp2.getValueType()); 1491750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp4 = DAG.getCondCode(ISD::SETNE); 1492750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 1493750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 1494750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp4, Tmp2, Tmp3, 1495750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Node->getOperand(4)); 1496456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1497181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner switch (TLI.getOperationAction(ISD::BR_CC, Tmp3.getValueType())) { 1498181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner default: assert(0 && "Unexpected action for BR_CC!"); 1499456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1500456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1501456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp4 = TLI.LowerOperation(Result, DAG); 1502456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp4.Val) Result = Tmp4; 1503181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner break; 15047cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 1505c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner break; 1506f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng case ISD::LOAD: { 1507466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LoadSDNode *LD = cast<LoadSDNode>(Node); 1508466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = LegalizeOp(LD->getChain()); // Legalize the chain. 1509466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = LegalizeOp(LD->getBasePtr()); // Legalize the base pointer. 15102d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth 1511466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ISD::LoadExtType ExtType = LD->getExtensionType(); 1512466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::NON_EXTLOAD) { 1513466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng MVT::ValueType VT = Node->getValueType(0); 1514466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, LD->getOffset()); 1515466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = Result.getValue(0); 1516466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp4 = Result.getValue(1); 1517456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1518466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 1519466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng default: assert(0 && "This action is not supported yet!"); 1520466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Legal: break; 1521466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Custom: 1522466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = TLI.LowerOperation(Tmp3, DAG); 1523466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (Tmp1.Val) { 1524466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = LegalizeOp(Tmp1); 1525466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp4 = LegalizeOp(Tmp1.getValue(1)); 1526466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1527466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1528466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Promote: { 1529466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Only promote a load of vector type to another. 1530466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng assert(MVT::isVector(VT) && "Cannot promote this load!"); 1531466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Change base type to a different vector type. 1532466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), VT); 1533466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 1534466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = DAG.getLoad(NVT, Tmp1, Tmp2, LD->getSrcValue(), 1535466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LD->getSrcValueOffset()); 1536466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = LegalizeOp(DAG.getNode(ISD::BIT_CONVERT, VT, Tmp1)); 153741f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng Tmp4 = LegalizeOp(Tmp1.getValue(1)); 1538466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1539f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 1540466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1541466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Since loads produce two values, make sure to remember that we 1542466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // legalized both of them. 1543466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 0), Tmp3); 1544466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), Tmp4); 1545466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return Op.ResNo ? Tmp4 : Tmp3; 1546466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else { 15472e49f090f9656af7d5ed4d5c4e9fa26af59c7233Evan Cheng MVT::ValueType SrcVT = LD->getLoadedVT(); 1548466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng switch (TLI.getLoadXAction(ExtType, SrcVT)) { 1549466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng default: assert(0 && "This action is not supported yet!"); 1550466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Promote: 1551466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng assert(SrcVT == MVT::i1 && 1552466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng "Can only promote extending LOAD from i1 -> i8!"); 1553466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getExtLoad(ExtType, Node->getValueType(0), Tmp1, Tmp2, 1554466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LD->getSrcValue(), LD->getSrcValueOffset(), 1555466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng MVT::i8); 1556c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = Result.getValue(0); 1557c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Result.getValue(1); 1558c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner break; 1559466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Custom: 1560466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng isCustom = true; 1561466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // FALLTHROUGH 1562466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Legal: 1563466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, LD->getOffset()); 1564466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = Result.getValue(0); 1565466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = Result.getValue(1); 1566456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1567466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (isCustom) { 1568466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = TLI.LowerOperation(Result, DAG); 1569466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (Tmp3.Val) { 1570466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = LegalizeOp(Tmp3); 1571466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = LegalizeOp(Tmp3.getValue(1)); 1572466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1573456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 1574466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1575466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Expand: 1576466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // f64 = EXTLOAD f32 should expand to LOAD, FP_EXTEND 1577466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (SrcVT == MVT::f32 && Node->getValueType(0) == MVT::f64) { 1578466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Load = DAG.getLoad(SrcVT, Tmp1, Tmp2, LD->getSrcValue(), 1579466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LD->getSrcValueOffset()); 1580466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getNode(ISD::FP_EXTEND, Node->getValueType(0), Load); 1581466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = LegalizeOp(Result); // Relegalize new nodes. 1582466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = LegalizeOp(Load.getValue(1)); 1583466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1584466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1585fea997aac5773e936754de5436029c2a4fa1e930Chris Lattner assert(ExtType != ISD::EXTLOAD &&"EXTLOAD should always be supported!"); 1586466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Turn the unsupported load into an EXTLOAD followed by an explicit 1587466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // zero/sign extend inreg. 1588466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getExtLoad(ISD::EXTLOAD, Node->getValueType(0), 1589466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1, Tmp2, LD->getSrcValue(), 1590466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LD->getSrcValueOffset(), SrcVT); 1591466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand ValRes; 1592466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::SEXTLOAD) 1593466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ValRes = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 1594466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result, DAG.getValueType(SrcVT)); 1595466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng else 1596466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ValRes = DAG.getZeroExtendInReg(Result, SrcVT); 1597466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = LegalizeOp(ValRes); // Relegalize new nodes. 1598466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = LegalizeOp(Result.getValue(1)); // Relegalize new nodes. 1599c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner break; 16009d416f713e8b9e4f0c0c2b3f6f57ce2dd8993209Andrew Lenharth } 1601466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Since loads produce two values, make sure to remember that we legalized 1602466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // both of them. 1603466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 1604466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 1605466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return Op.ResNo ? Tmp2 : Tmp1; 160601ff7216dd7829d4094754086baf28aa2d7149acChris Lattner } 160701ff7216dd7829d4094754086baf28aa2d7149acChris Lattner } 16085dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case ISD::EXTRACT_ELEMENT: { 16095dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman MVT::ValueType OpTy = Node->getOperand(0).getValueType(); 16105dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman switch (getTypeAction(OpTy)) { 1611c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner default: assert(0 && "EXTRACT_ELEMENT action for type unimplemented!"); 16125dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case Legal: 16135dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman if (cast<ConstantSDNode>(Node->getOperand(1))->getValue()) { 16145dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // 1 -> Hi 16155dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::SRL, OpTy, Node->getOperand(0), 16165dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman DAG.getConstant(MVT::getSizeInBits(OpTy)/2, 16175dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman TLI.getShiftAmountTy())); 16185dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), Result); 16195dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } else { 16205dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // 0 -> Lo 16215dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), 16225dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Node->getOperand(0)); 16235dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 16245dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman break; 16255dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case Expand: 16265dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // Get both the low and high parts. 16275dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 16285dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman if (cast<ConstantSDNode>(Node->getOperand(1))->getValue()) 16295dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = Tmp2; // 1 -> Hi 16305dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman else 16315dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = Tmp1; // 0 -> Lo 16325dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman break; 16335dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 16343e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 16355dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 16363e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 16373e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::CopyToReg: 16383e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1639edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 1640c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner assert(isTypeLegal(Node->getOperand(2).getValueType()) && 1641d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner "Register type must be legal!"); 16427310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // Legalize the incoming value (must be a legal type). 1643d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(2)); 1644f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner if (Node->getNumValues() == 1) { 1645c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1), Tmp2); 16467310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } else { 1647f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner assert(Node->getNumValues() == 2 && "Unknown CopyToReg"); 1648c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Node->getNumOperands() == 4) { 1649f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(3)); 1650c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1), Tmp2, 1651c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3); 1652c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else { 1653c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1),Tmp2); 16547310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 16557310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner 16567310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // Since this produces two values, make sure to remember that we legalized 16577310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // both of them. 1658c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 16597310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 1660c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Result; 16617310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 16623e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 16633e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 16643e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::RET: 16653e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 16666831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 16676831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a return. 16686831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 16696831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 16706831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 1671f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner 16723e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getNumOperands()) { 16738e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng case 3: // ret val 167498f8aeb45fc1e54437cbb8f2a7445c609deab832Evan Cheng Tmp2 = Node->getOperand(1); 16758e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Tmp3 = Node->getOperand(2); // Signness 1676f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner switch (getTypeAction(Tmp2.getValueType())) { 16773e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 16788e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, LegalizeOp(Tmp2), Tmp3); 16793e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 1680f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner case Expand: 1681f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner if (Tmp2.getValueType() != MVT::Vector) { 1682f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SDOperand Lo, Hi; 1683f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner ExpandOp(Tmp2, Lo, Hi); 1684edf2e8da256496c19390cfd46da80746373e9989Chris Lattner 1685edf2e8da256496c19390cfd46da80746373e9989Chris Lattner // Big endian systems want the hi reg first. 1686edf2e8da256496c19390cfd46da80746373e9989Chris Lattner if (!TLI.isLittleEndian()) 1687edf2e8da256496c19390cfd46da80746373e9989Chris Lattner std::swap(Lo, Hi); 1688edf2e8da256496c19390cfd46da80746373e9989Chris Lattner 168913acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (Hi.Val) 169013acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Tmp3, Hi,Tmp3); 169113acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng else 169213acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Tmp3); 1693f921a518912df706a8edf1f867f52e8afc6e2b55Chris Lattner Result = LegalizeOp(Result); 1694f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } else { 1695f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SDNode *InVal = Tmp2.Val; 1696f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner unsigned NumElems = 1697f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner cast<ConstantSDNode>(*(InVal->op_end()-2))->getValue(); 1698f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner MVT::ValueType EVT = cast<VTSDNode>(*(InVal->op_end()-1))->getVT(); 1699f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner 1700f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // Figure out if there is a Packed type corresponding to this Vector 1701ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // type. If so, convert to the vector type. 1702f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 1703f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner if (TVT != MVT::Other && TLI.isTypeLegal(TVT)) { 1704ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // Turn this into a return of the vector type. 1705f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner Tmp2 = PackVectorOp(Tmp2, TVT); 17068e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1707f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } else if (NumElems == 1) { 1708f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // Turn this into a return of the scalar type. 1709f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner Tmp2 = PackVectorOp(Tmp2, EVT); 17108e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1711b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner 1712b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // FIXME: Returns of gcc generic vectors smaller than a legal type 1713b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // should be returned in integer registers! 1714b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner 1715f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // The scalarized value type may not be legal, e.g. it might require 1716f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // promotion or expansion. Relegalize the return. 1717f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner Result = LegalizeOp(Result); 1718f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } else { 1719b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // FIXME: Returns of gcc generic vectors larger than a legal vector 1720b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // type should be returned by reference! 1721f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SDOperand Lo, Hi; 1722f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SplitVectorOp(Tmp2, Lo, Hi); 1723fea997aac5773e936754de5436029c2a4fa1e930Chris Lattner Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Tmp3, Hi,Tmp3); 1724f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner Result = LegalizeOp(Result); 1725f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } 1726f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } 1727edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman break; 17283e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Promote: 17298b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 17308e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1731c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); 17328b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 17333e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 17343e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 17353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case 1: // ret void 1736c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 17373e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 17383e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner default: { // ret <values> 1739f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> NewValues; 17403e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner NewValues.push_back(Tmp1); 17418e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng for (unsigned i = 1, e = Node->getNumOperands(); i < e; i += 2) 17423e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (getTypeAction(Node->getOperand(i).getValueType())) { 17433e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 17444e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner NewValues.push_back(LegalizeOp(Node->getOperand(i))); 17458e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng NewValues.push_back(Node->getOperand(i+1)); 17463e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 17473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Expand: { 17483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand Lo, Hi; 1749b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner assert(Node->getOperand(i).getValueType() != MVT::Vector && 1750b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner "FIXME: TODO: implement returning non-legal vector types!"); 17513e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(i), Lo, Hi); 17523e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner NewValues.push_back(Lo); 17538e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng NewValues.push_back(Node->getOperand(i+1)); 175413acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (Hi.Val) { 175513acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng NewValues.push_back(Hi); 175613acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng NewValues.push_back(Node->getOperand(i+1)); 175713acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng } 1758edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman break; 17593e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 17603e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Promote: 17618b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(0 && "Can't promote multiple return value yet!"); 17623e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1763c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 1764c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (NewValues.size() == Node->getNumOperands()) 1765f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &NewValues[0],NewValues.size()); 1766c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner else 1767f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.getNode(ISD::RET, MVT::Other, 1768f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner &NewValues[0], NewValues.size()); 17693e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 17703e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 17713e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 177217c428e23dbeac1f985d725905ce6be1c725491fEvan Cheng 17736862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner if (Result.getOpcode() == ISD::RET) { 17746862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner switch (TLI.getOperationAction(Result.getOpcode(), MVT::Other)) { 17756862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner default: assert(0 && "This action is not supported yet!"); 17766862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner case TargetLowering::Legal: break; 17776862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner case TargetLowering::Custom: 17786862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 17796862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner if (Tmp1.Val) Result = Tmp1; 17806862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner break; 17816862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner } 178217c428e23dbeac1f985d725905ce6be1c725491fEvan Cheng } 17833e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 1784f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng case ISD::STORE: { 17858b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng StoreSDNode *ST = cast<StoreSDNode>(Node); 17868b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp1 = LegalizeOp(ST->getChain()); // Legalize the chain. 17878b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp2 = LegalizeOp(ST->getBasePtr()); // Legalize the pointer. 17888b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 17898b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (!ST->isTruncatingStore()) { 1790d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // Turn 'store float 1.0, Ptr' -> 'store int 0x12345678, Ptr' 1791d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // FIXME: We shouldn't do this for TargetConstantFP's. 1792d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // FIXME: move this to the DAG Combiner! Note that we can't regress due 1793d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // to phase ordering between legalized code and the dag combiner. This 1794d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // probably means that we need to integrate dag combiner and legalizer 1795d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // together. 1796d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner if (ConstantFPSDNode *CFP = dyn_cast<ConstantFPSDNode>(ST->getValue())) { 1797d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner if (CFP->getValueType(0) == MVT::f32) { 1798d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner Tmp3 = DAG.getConstant(FloatToBits(CFP->getValue()), MVT::i32); 1799d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner } else { 1800d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner assert(CFP->getValueType(0) == MVT::f64 && "Unknown FP type!"); 1801d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner Tmp3 = DAG.getConstant(DoubleToBits(CFP->getValue()), MVT::i64); 1802d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner } 1803d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 1804d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner ST->getSrcValueOffset()); 1805d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner break; 1806d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner } 1807d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner 18088b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng switch (getTypeAction(ST->getStoredVT())) { 18098b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case Legal: { 18108b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = LegalizeOp(ST->getValue()); 18112efce0a589e2a688a1a06b5dc2ed0db32ae79924Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp3, Tmp2, 18128b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng ST->getOffset()); 18138b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 18148b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng MVT::ValueType VT = Tmp3.getValueType(); 18158b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng switch (TLI.getOperationAction(ISD::STORE, VT)) { 18168b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng default: assert(0 && "This action is not supported yet!"); 18178b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case TargetLowering::Legal: break; 18188b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case TargetLowering::Custom: 18198b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 18208b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (Tmp1.Val) Result = Tmp1; 18218b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 18228b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case TargetLowering::Promote: 18238b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng assert(MVT::isVector(VT) && "Unknown legal promote case!"); 18248b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = DAG.getNode(ISD::BIT_CONVERT, 18258b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng TLI.getTypeToPromoteTo(ISD::STORE, VT), Tmp3); 18268b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp1, Tmp3, Tmp2, 18278b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng ST->getSrcValue(), ST->getSrcValueOffset()); 18288b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 18298b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 18302efce0a589e2a688a1a06b5dc2ed0db32ae79924Chris Lattner break; 1831f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 18328b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case Promote: 18338b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // Truncate the value and store the result. 18348b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = PromoteOp(ST->getValue()); 18358b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 18368b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng ST->getSrcValueOffset(), ST->getStoredVT()); 18378b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 183803c8546ec57523970874917854a2fb77b1ff598eChris Lattner 18398b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case Expand: 18408b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng unsigned IncrementSize = 0; 18418b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDOperand Lo, Hi; 1842c7029805ef35ce9805931067b841e6af11db382eChris Lattner 18438b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // If this is a vector type, then we have to calculate the increment as 18448b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // the product of the element size in bytes, and the number of elements 18458b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // in the high half of the vector. 18468b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (ST->getValue().getValueType() == MVT::Vector) { 18478b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDNode *InVal = ST->getValue().Val; 18488b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng unsigned NumElems = 18498b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng cast<ConstantSDNode>(*(InVal->op_end()-2))->getValue(); 18508b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng MVT::ValueType EVT = cast<VTSDNode>(*(InVal->op_end()-1))->getVT(); 18518b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 18528b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // Figure out if there is a Packed type corresponding to this Vector 1853ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // type. If so, convert to the vector type. 18548b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 18558b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (TVT != MVT::Other && TLI.isTypeLegal(TVT)) { 1856ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // Turn this into a normal store of the vector type. 18578b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = PackVectorOp(Node->getOperand(1), TVT); 18588b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 18598b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng ST->getSrcValueOffset()); 18608b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = LegalizeOp(Result); 18618b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 18628b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else if (NumElems == 1) { 18638b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // Turn this into a normal store of the scalar type. 18648b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = PackVectorOp(Node->getOperand(1), EVT); 18658b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 18668b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng ST->getSrcValueOffset()); 18678b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // The scalarized value type may not be legal, e.g. it might require 18688b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // promotion or expansion. Relegalize the scalar store. 18698b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = LegalizeOp(Result); 18708b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 18718b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else { 18728b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SplitVectorOp(Node->getOperand(1), Lo, Hi); 18738b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng IncrementSize = NumElems/2 * MVT::getSizeInBits(EVT)/8; 18748b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 1875c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else { 18768b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng ExpandOp(Node->getOperand(1), Lo, Hi); 18777b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng IncrementSize = Hi.Val ? MVT::getSizeInBits(Hi.getValueType())/8 : 0; 18788b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 18798b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (!TLI.isLittleEndian()) 18808b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng std::swap(Lo, Hi); 1881c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 1882c7029805ef35ce9805931067b841e6af11db382eChris Lattner 18838b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Lo = DAG.getStore(Tmp1, Lo, Tmp2, ST->getSrcValue(), 1884b464c446791f03cd8abc0b55bab4d472de534218Chris Lattner ST->getSrcValueOffset(), ST->isVolatile(), 1885b464c446791f03cd8abc0b55bab4d472de534218Chris Lattner ST->getAlignment()); 18867b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng 18877b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng if (Hi.Val == NULL) { 18887b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng // Must be int <-> float one-to-one expansion. 18897b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng Result = Lo; 18907b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng break; 18917b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng } 18927b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng 18938b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 18948b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng getIntPtrConstant(IncrementSize)); 18958b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng assert(isTypeLegal(Tmp2.getValueType()) && 18968b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng "Pointers must be legal!"); 18978b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // FIXME: This sets the srcvalue of both halves to be the same, which is 18988b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // wrong. 18998b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Hi = DAG.getStore(Tmp1, Hi, Tmp2, ST->getSrcValue(), 1900b464c446791f03cd8abc0b55bab4d472de534218Chris Lattner ST->getSrcValueOffset(), ST->isVolatile(), 1901b464c446791f03cd8abc0b55bab4d472de534218Chris Lattner std::min(ST->getAlignment(), IncrementSize)); 19028b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo, Hi); 19038b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 19048b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 19058b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else { 19068b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // Truncating store 19078b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng assert(isTypeLegal(ST->getValue().getValueType()) && 19088b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng "Cannot handle illegal TRUNCSTORE yet!"); 19098b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = LegalizeOp(ST->getValue()); 19108b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 19118b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // The only promote case we handle is TRUNCSTORE:i1 X into 19128b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // -> TRUNCSTORE:i8 (and X, 1) 19138b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (ST->getStoredVT() == MVT::i1 && 19148b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng TLI.getStoreXAction(MVT::i1) == TargetLowering::Promote) { 19158b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // Promote the bool to a mask then store. 19168b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = DAG.getNode(ISD::AND, Tmp3.getValueType(), Tmp3, 19178b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng DAG.getConstant(1, Tmp3.getValueType())); 19188b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 19198b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng ST->getSrcValueOffset(), MVT::i8); 19208b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else if (Tmp1 != ST->getChain() || Tmp3 != ST->getValue() || 19218b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp2 != ST->getBasePtr()) { 19228b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp3, Tmp2, 19238b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng ST->getOffset()); 1924d9731af75b38f30c02f19d6e81333b9c2599ad5fChris Lattner } 1925c7029805ef35ce9805931067b841e6af11db382eChris Lattner 19268b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng MVT::ValueType StVT = cast<StoreSDNode>(Result.Val)->getStoredVT(); 19278b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng switch (TLI.getStoreXAction(StVT)) { 19288b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng default: assert(0 && "This action is not supported yet!"); 19298b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case TargetLowering::Legal: break; 19308b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case TargetLowering::Custom: 19318b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 19328b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (Tmp1.Val) Result = Tmp1; 19338b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 19348b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 19353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 19363e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 1937f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 193895762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth case ISD::PCMARKER: 193995762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1940c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 194195762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth break; 1942140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case ISD::STACKSAVE: 1943140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1944c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 1945c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = Result.getValue(0); 1946c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Result.getValue(1); 1947456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1948140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner switch (TLI.getOperationAction(ISD::STACKSAVE, MVT::Other)) { 1949140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner default: assert(0 && "This action is not supported yet!"); 1950456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1951456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1952c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 1953c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Tmp3.Val) { 1954c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp3); 1955c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp3.getValue(1)); 1956140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 1957456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 1958140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case TargetLowering::Expand: 19594f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // Expand to CopyFromReg if the target set 19604f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // StackPointerRegisterToSaveRestore. 19614f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner if (unsigned SP = TLI.getStackPointerRegisterToSaveRestore()) { 1962c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getCopyFromReg(Result.getOperand(0), SP, 19634f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Node->getValueType(0)); 1964c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Tmp1.getValue(1); 19654f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } else { 1966c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getNode(ISD::UNDEF, Node->getValueType(0)); 1967c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Node->getOperand(0); 19684f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } 1969456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 1970140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 1971456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1972456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Since stacksave produce two values, make sure to remember that we 1973456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // legalized both of them. 1974c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 1975c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 1976c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Op.ResNo ? Tmp2 : Tmp1; 1977456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1978140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case ISD::STACKRESTORE: 1979140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1980140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 1981c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 1982140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner 1983140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner switch (TLI.getOperationAction(ISD::STACKRESTORE, MVT::Other)) { 1984140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner default: assert(0 && "This action is not supported yet!"); 1985456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1986456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1987456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 1988456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 1989140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 1990140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case TargetLowering::Expand: 19914f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // Expand to CopyToReg if the target set 19924f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // StackPointerRegisterToSaveRestore. 19934f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner if (unsigned SP = TLI.getStackPointerRegisterToSaveRestore()) { 19944f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Result = DAG.getCopyToReg(Tmp1, SP, Tmp2); 19954f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } else { 19964f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Result = Tmp1; 19974f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } 1998140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 1999140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 2000140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 2001140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner 200251b8d54922350b7e1c2cd5a5183ef2c5f5d1b1d5Andrew Lenharth case ISD::READCYCLECOUNTER: 200351b8d54922350b7e1c2cd5a5183ef2c5f5d1b1d5Andrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain 2004c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2005f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng switch (TLI.getOperationAction(ISD::READCYCLECOUNTER, 2006f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng Node->getValueType(0))) { 2007f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng default: assert(0 && "This action is not supported yet!"); 20086a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng case TargetLowering::Legal: 20096a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp1 = Result.getValue(0); 20106a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp2 = Result.getValue(1); 20116a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng break; 2012f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng case TargetLowering::Custom: 2013f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng Result = TLI.LowerOperation(Result, DAG); 20146a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp1 = LegalizeOp(Result.getValue(0)); 20156a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp2 = LegalizeOp(Result.getValue(1)); 2016f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng break; 2017f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng } 201849c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth 201949c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth // Since rdcc produce two values, make sure to remember that we legalized 202049c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth // both of them. 20216a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 20226a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 2023c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Result; 2024f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 20252ee743ff9be43c350075a2fa15d11a79bff36775Chris Lattner case ISD::SELECT: 202647e9223e06390897c3834f8c527001df392570ffChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 202747e9223e06390897c3834f8c527001df392570ffChris Lattner case Expand: assert(0 && "It's impossible to expand bools"); 202847e9223e06390897c3834f8c527001df392570ffChris Lattner case Legal: 202947e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the condition. 203047e9223e06390897c3834f8c527001df392570ffChris Lattner break; 203147e9223e06390897c3834f8c527001df392570ffChris Lattner case Promote: 203247e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); // Promote the condition. 2033b6c806045bbd4a650f90f613a96cee01a1584412Chris Lattner // Make sure the condition is either zero or one. 2034b6c806045bbd4a650f90f613a96cee01a1584412Chris Lattner if (!TLI.MaskedValueIsZero(Tmp1, 2035b6c806045bbd4a650f90f613a96cee01a1584412Chris Lattner MVT::getIntVTBitMask(Tmp1.getValueType())^1)) 2036b6c806045bbd4a650f90f613a96cee01a1584412Chris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, MVT::i1); 203747e9223e06390897c3834f8c527001df392570ffChris Lattner break; 203847e9223e06390897c3834f8c527001df392570ffChris Lattner } 20393e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // TrueVal 20402ee743ff9be43c350075a2fa15d11a79bff36775Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // FalseVal 204155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner 2042c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2043456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2044b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman switch (TLI.getOperationAction(ISD::SELECT, Tmp2.getValueType())) { 204555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action is not supported yet!"); 2046456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2047456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: { 2048456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2049456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2050456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2051456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 20529373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case TargetLowering::Expand: 20539373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman if (Tmp1.getOpcode() == ISD::SETCC) { 20549373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getSelectCC(Tmp1.getOperand(0), Tmp1.getOperand(1), 20559373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2, Tmp3, 20569373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman cast<CondCodeSDNode>(Tmp1.getOperand(2))->get()); 20579373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } else { 20589373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getSelectCC(Tmp1, 20599373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman DAG.getConstant(0, Tmp1.getValueType()), 20609373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2, Tmp3, ISD::SETNE); 20619373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 206255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 206355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Promote: { 206455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner MVT::ValueType NVT = 206555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner TLI.getTypeToPromoteTo(ISD::SELECT, Tmp2.getValueType()); 206655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner unsigned ExtOp, TruncOp; 206741f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng if (MVT::isVector(Tmp2.getValueType())) { 206841f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng ExtOp = ISD::BIT_CONVERT; 206941f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng TruncOp = ISD::BIT_CONVERT; 207041f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng } else if (MVT::isInteger(Tmp2.getValueType())) { 2071456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner ExtOp = ISD::ANY_EXTEND; 2072456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner TruncOp = ISD::TRUNCATE; 207355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } else { 2074456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner ExtOp = ISD::FP_EXTEND; 2075456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner TruncOp = ISD::FP_ROUND; 207655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 207755ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner // Promote each of the values to the new type. 207855ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Tmp2 = DAG.getNode(ExtOp, NVT, Tmp2); 207955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Tmp3 = DAG.getNode(ExtOp, NVT, Tmp3); 208055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner // Perform the larger operation, then round down. 208155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Tmp1, Tmp2,Tmp3); 208255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Result = DAG.getNode(TruncOp, Node->getValueType(0), Result); 208355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 208455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 208555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 20863e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2087750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SELECT_CC: { 2088750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = Node->getOperand(0); // LHS 2089750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(1); // RHS 20909373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); // True 20919373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp4 = LegalizeOp(Node->getOperand(3)); // False 2092750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand CC = Node->getOperand(4); 20939373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman 2094750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp1, Tmp2, CC); 2095750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2096750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we didn't get both a LHS and RHS back from LegalizeSetCCOperands, 2097750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the LHS is a legal SETCC itself. In this case, we need to compare 2098750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the result against zero to select between true and false values. 2099750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp2.Val == 0) { 2100750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getConstant(0, Tmp1.getValueType()); 2101750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CC = DAG.getCondCode(ISD::SETNE); 2102750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 2103750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4, CC); 2104750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2105750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Everything is legal, see if we should expand this op or something. 2106750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (TLI.getOperationAction(ISD::SELECT_CC, Tmp3.getValueType())) { 2107750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "This action is not supported yet!"); 2108750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case TargetLowering::Legal: break; 2109750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case TargetLowering::Custom: 2110750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = TLI.LowerOperation(Result, DAG); 2111750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp1.Val) Result = Tmp1; 21129373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 21139373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 21149373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 2115750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 21163e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SETCC: 2117750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = Node->getOperand(0); 2118750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(1); 2119750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = Node->getOperand(2); 2120750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp1, Tmp2, Tmp3); 2121750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2122750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we had to Expand the SetCC operands into a SELECT node, then it may 2123750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // not always be possible to return a true LHS & RHS. In this case, just 2124750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // return the value we legalized, returned in the LHS 2125750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp2.Val == 0) { 2126750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = Tmp1; 21273e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 21283e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 2129b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman 213073e142f2b6a3b5223de2d557d646f319ca8168cfChris Lattner switch (TLI.getOperationAction(ISD::SETCC, Tmp1.getValueType())) { 2131456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner default: assert(0 && "Cannot handle this action for SETCC yet!"); 2132456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2133456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2134456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH. 2135456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 21362b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2137456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 21382b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp4 = TLI.LowerOperation(Result, DAG); 21392b49c500838666dd0186d021389d4dd70ffda240Evan Cheng if (Tmp4.Val) Result = Tmp4; 2140456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2141b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman break; 2142ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth case TargetLowering::Promote: { 2143ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // First step, figure out the appropriate operation to use. 2144ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Allow SETCC to not be supported for all legal data types 2145ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Mostly this targets FP 2146ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth MVT::ValueType NewInTy = Node->getOperand(0).getValueType(); 214700755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner MVT::ValueType OldVT = NewInTy; OldVT = OldVT; 2148ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 2149ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Scan for the appropriate larger type to use. 2150ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth while (1) { 2151ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth NewInTy = (MVT::ValueType)(NewInTy+1); 2152ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 2153ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth assert(MVT::isInteger(NewInTy) == MVT::isInteger(OldVT) && 2154ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth "Fell off of the edge of the integer world"); 2155ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth assert(MVT::isFloatingPoint(NewInTy) == MVT::isFloatingPoint(OldVT) && 2156ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth "Fell off of the edge of the floating point world"); 2157ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 2158ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // If the target supports SETCC of this type, use it. 21591ccf26a6392034a11827aeaa0d58d025ecb2b85aChris Lattner if (TLI.isOperationLegal(ISD::SETCC, NewInTy)) 2160ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth break; 2161ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 2162ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth if (MVT::isInteger(NewInTy)) 2163ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth assert(0 && "Cannot promote Legal Integer SETCC yet"); 2164ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth else { 2165ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth Tmp1 = DAG.getNode(ISD::FP_EXTEND, NewInTy, Tmp1); 2166ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth Tmp2 = DAG.getNode(ISD::FP_EXTEND, NewInTy, Tmp2); 2167ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 2168c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp1); 2169c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp2); 21702b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2171433f8acefb78f1c8a2cf79c12b101ce7c4b20202Evan Cheng Result = LegalizeOp(Result); 21725e3efbc2ca459621400211f7370d7f121d4827d9Andrew Lenharth break; 2173ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 2174b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman case TargetLowering::Expand: 2175b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman // Expand a setcc node into a select_cc of the same condition, lhs, and 2176b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman // rhs that selects between const 1 (true) and const 0 (false). 2177b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman MVT::ValueType VT = Node->getValueType(0); 2178b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman Result = DAG.getNode(ISD::SELECT_CC, VT, Tmp1, Tmp2, 2179b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman DAG.getConstant(1, VT), DAG.getConstant(0, VT), 21802b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp3); 2181b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman break; 2182b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman } 21833e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2184e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner case ISD::MEMSET: 2185e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner case ISD::MEMCPY: 2186e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner case ISD::MEMMOVE: { 2187deb692e756cd3826e4ecc6eaec3397177c8b89ceChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Chain 2188e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Pointer 2189e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner 2190e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner if (Node->getOpcode() == ISD::MEMSET) { // memset = ubyte 2191e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner switch (getTypeAction(Node->getOperand(2).getValueType())) { 2192e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Expand: assert(0 && "Cannot expand a byte!"); 2193e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Legal: 2194deb692e756cd3826e4ecc6eaec3397177c8b89ceChris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); 2195e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 2196e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Promote: 2197deb692e756cd3826e4ecc6eaec3397177c8b89ceChris Lattner Tmp3 = PromoteOp(Node->getOperand(2)); 2198e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 2199e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } 2200e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } else { 2201edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Tmp3 = LegalizeOp(Node->getOperand(2)); // memcpy/move = pointer, 2202e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } 2203272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner 2204272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner SDOperand Tmp4; 2205272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner switch (getTypeAction(Node->getOperand(3).getValueType())) { 22066814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner case Expand: { 22076814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner // Length is too big, just take the lo-part of the length. 22086814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner SDOperand HiPart; 2209fa9aa2b424d0a7d9f7201f8fdcf5ccfa05db3a80Chris Lattner ExpandOp(Node->getOperand(3), Tmp4, HiPart); 22106814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner break; 22116814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner } 2212e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Legal: 2213e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp4 = LegalizeOp(Node->getOperand(3)); 2214e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 2215e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Promote: 2216e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp4 = PromoteOp(Node->getOperand(3)); 2217272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner break; 2218272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner } 2219272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner 2220272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner SDOperand Tmp5; 2221272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner switch (getTypeAction(Node->getOperand(4).getValueType())) { // uint 2222272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner case Expand: assert(0 && "Cannot expand this yet!"); 2223272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner case Legal: 2224272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner Tmp5 = LegalizeOp(Node->getOperand(4)); 2225272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner break; 2226272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner case Promote: 2227e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp5 = PromoteOp(Node->getOperand(4)); 2228e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 2229e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } 223055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner 223155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), MVT::Other)) { 223255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action not implemented for this operation!"); 2233456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2234456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2235456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 223655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Legal: 2237c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4, Tmp5); 2238456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2239456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2240456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2241456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 224255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 224355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Expand: { 2244e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner // Otherwise, the target does not support this operation. Lower the 2245e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner // operation to an explicit libcall as appropriate. 2246e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner MVT::ValueType IntPtr = TLI.getPointerTy(); 2247a69571c7991813c93cba64e88eced6899ce93d81Owen Anderson const Type *IntPtrTy = TLI.getTargetData()->getIntPtrType(); 224847857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TargetLowering::ArgListTy Args; 224947857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TargetLowering::ArgListEntry Entry; 2250e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner 22513bfbf4ea990930d153e58e153f319408341a94feReid Spencer const char *FnName = 0; 2252e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner if (Node->getOpcode() == ISD::MEMSET) { 2253d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov Entry.Node = Tmp2; Entry.Ty = IntPtrTy; 225447857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Args.push_back(Entry); 2255dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner // Extend the (previously legalized) ubyte argument to be an int value 2256dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner // for the call. 2257dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner if (Tmp3.getValueType() > MVT::i32) 2258dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner Tmp3 = DAG.getNode(ISD::TRUNCATE, MVT::i32, Tmp3); 2259dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner else 2260dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner Tmp3 = DAG.getNode(ISD::ZERO_EXTEND, MVT::i32, Tmp3); 2261d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov Entry.Node = Tmp3; Entry.Ty = Type::Int32Ty; Entry.isSExt = true; 226247857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Args.push_back(Entry); 2263d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov Entry.Node = Tmp4; Entry.Ty = IntPtrTy; Entry.isSExt = false; 226447857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Args.push_back(Entry); 2265e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner 2266e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner FnName = "memset"; 2267e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } else if (Node->getOpcode() == ISD::MEMCPY || 2268e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner Node->getOpcode() == ISD::MEMMOVE) { 2269b25fe8267182662750dcb76a70a20f4b14a5568dAnton Korobeynikov Entry.Ty = IntPtrTy; 2270b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer Entry.Node = Tmp2; Args.push_back(Entry); 2271b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer Entry.Node = Tmp3; Args.push_back(Entry); 2272b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer Entry.Node = Tmp4; Args.push_back(Entry); 2273e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner FnName = Node->getOpcode() == ISD::MEMMOVE ? "memmove" : "memcpy"; 2274e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } else { 2275e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner assert(0 && "Unknown op!"); 2276e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } 227745982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner 2278e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner std::pair<SDOperand,SDOperand> CallResult = 227947857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TLI.LowerCallTo(Tmp1, Type::VoidTy, false, false, CallingConv::C, false, 2280e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner DAG.getExternalSymbol(FnName, IntPtr), Args, DAG); 2281456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = CallResult.second; 228255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 228355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 2284e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } 2285e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner break; 2286e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } 228752d08bd9d8a8dcc06148525c7fad6f2ebcad0a42Chris Lattner 22885b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SHL_PARTS: 22895b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SRA_PARTS: 22905b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SRL_PARTS: { 2291f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 229284f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner bool Changed = false; 229384f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 229484f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 229584f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner Changed |= Ops.back() != Node->getOperand(i); 229684f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner } 2297c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Changed) 2298f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 22992c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 230005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), 230105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Node->getValueType(0))) { 230205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng default: assert(0 && "This action is not supported yet!"); 2303456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2304456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2305456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2306456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) { 2307456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand Tmp2, RetVal(0, 0); 230805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) { 2309456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = LegalizeOp(Tmp1.getValue(i)); 231005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng AddLegalizedOperand(SDOperand(Node, i), Tmp2); 231105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if (i == Op.ResNo) 231212f2274ba8c6af21e8b6c71ef872afe43a64b6d7Evan Cheng RetVal = Tmp2; 231305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 2314269f8c069105e13f3845a8dbc7796ac9a15dc882Chris Lattner assert(RetVal.Val && "Illegal result number"); 231505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng return RetVal; 231605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 231705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng break; 231805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 231905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 23202c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Since these produce multiple values, make sure to remember that we 23212c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // legalized all of them. 23222c8086f4b9916b2d02842be5e375276023225fbaChris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 23232c8086f4b9916b2d02842be5e375276023225fbaChris Lattner AddLegalizedOperand(SDOperand(Node, i), Result.getValue(i)); 23242c8086f4b9916b2d02842be5e375276023225fbaChris Lattner return Result.getValue(Op.ResNo); 232584f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner } 23262c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 23272c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Binary operators 23283e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ADD: 23293e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SUB: 23303e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::MUL: 2331c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MULHS: 2332c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MULHU: 23333e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::UDIV: 23343e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SDIV: 23353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::AND: 23363e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::OR: 23373e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::XOR: 233803c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SHL: 233903c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SRL: 234003c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SRA: 234101b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FADD: 234201b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FSUB: 234301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FMUL: 234401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FDIV: 23453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 2346f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth switch (getTypeAction(Node->getOperand(1).getValueType())) { 2347f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Expand: assert(0 && "Not possible"); 2348f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Legal: 2349f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the RHS. 2350f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth break; 2351f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Promote: 2352f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the RHS. 2353f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth break; 2354f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth } 2355c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 2356c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2357456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2358e8f65f1e62ea1d4f2ca9fd0137ae2e0ce20e26e1Andrew Lenharth switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2359bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner default: assert(0 && "BinOp legalize operation not supported"); 2360456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2361456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2362456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2363456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 236457030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth break; 2365bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner case TargetLowering::Expand: { 236652cc1ea2a1a374b58801398460a6289723089d91Evan Cheng if (Node->getValueType(0) == MVT::i32) { 236752cc1ea2a1a374b58801398460a6289723089d91Evan Cheng switch (Node->getOpcode()) { 236852cc1ea2a1a374b58801398460a6289723089d91Evan Cheng default: assert(0 && "Do not know how to expand this integer BinOp!"); 236952cc1ea2a1a374b58801398460a6289723089d91Evan Cheng case ISD::UDIV: 237052cc1ea2a1a374b58801398460a6289723089d91Evan Cheng case ISD::SDIV: 237156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = Node->getOpcode() == ISD::UDIV 237256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::UDIV_I32 : RTLIB::SDIV_I32; 237352cc1ea2a1a374b58801398460a6289723089d91Evan Cheng SDOperand Dummy; 237447857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer bool isSigned = Node->getOpcode() == ISD::SDIV; 237556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, isSigned, Dummy); 237652cc1ea2a1a374b58801398460a6289723089d91Evan Cheng }; 237752cc1ea2a1a374b58801398460a6289723089d91Evan Cheng break; 237852cc1ea2a1a374b58801398460a6289723089d91Evan Cheng } 237952cc1ea2a1a374b58801398460a6289723089d91Evan Cheng 2380bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner assert(MVT::isVector(Node->getValueType(0)) && 2381bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner "Cannot expand this binary operator!"); 2382bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner // Expand the operation into a bunch of nasty scalar code. 2383bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Ops; 2384bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner MVT::ValueType EltVT = MVT::getVectorBaseType(Node->getValueType(0)); 2385bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner MVT::ValueType PtrVT = TLI.getPointerTy(); 2386bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner for (unsigned i = 0, e = MVT::getVectorNumElements(Node->getValueType(0)); 2387bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner i != e; ++i) { 2388bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner SDOperand Idx = DAG.getConstant(i, PtrVT); 2389bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner SDOperand LHS = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EltVT, Tmp1, Idx); 2390bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner SDOperand RHS = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EltVT, Tmp2, Idx); 2391bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner Ops.push_back(DAG.getNode(Node->getOpcode(), EltVT, LHS, RHS)); 2392bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner } 2393bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Result = DAG.getNode(ISD::BUILD_VECTOR, Node->getValueType(0), 2394bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &Ops[0], Ops.size()); 2395bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner break; 2396bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner } 2397cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case TargetLowering::Promote: { 2398cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng switch (Node->getOpcode()) { 2399cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng default: assert(0 && "Do not know how to promote this BinOp!"); 2400cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case ISD::AND: 2401cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case ISD::OR: 2402cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case ISD::XOR: { 2403cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng MVT::ValueType OVT = Node->getValueType(0); 2404cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 2405cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng assert(MVT::isVector(OVT) && "Cannot promote this BinOp!"); 2406cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng // Bit convert each of the values to the new type. 2407cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Tmp1 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp1); 2408cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Tmp2 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp2); 2409cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 2410cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng // Bit convert the result back the original type. 2411cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Result = DAG.getNode(ISD::BIT_CONVERT, OVT, Result); 2412cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng break; 2413cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng } 2414cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng } 2415cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng } 2416e8f65f1e62ea1d4f2ca9fd0137ae2e0ce20e26e1Andrew Lenharth } 24173e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2418a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 2419a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case ISD::FCOPYSIGN: // FCOPYSIGN does not require LHS/RHS to match type! 2420a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 2421a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner switch (getTypeAction(Node->getOperand(1).getValueType())) { 2422a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Expand: assert(0 && "Not possible"); 2423a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Legal: 2424a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the RHS. 2425a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 2426a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Promote: 2427a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the RHS. 2428a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 2429a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner } 2430a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 2431a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2432a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 2433a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2434a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner default: assert(0 && "Operation not supported"); 2435a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case TargetLowering::Custom: 2436a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2437a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner if (Tmp1.Val) Result = Tmp1; 24388f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner break; 2439a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case TargetLowering::Legal: break; 2440912095becac923ff614d7b07728eb345ada67765Evan Cheng case TargetLowering::Expand: { 2441636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng // If this target supports fabs/fneg natively and select is cheap, 2442636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng // do this efficiently. 2443636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng if (!TLI.isSelectExpensive() && 2444636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng TLI.getOperationAction(ISD::FABS, Tmp1.getValueType()) == 2445636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng TargetLowering::Legal && 2446912095becac923ff614d7b07728eb345ada67765Evan Cheng TLI.getOperationAction(ISD::FNEG, Tmp1.getValueType()) == 2447636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng TargetLowering::Legal) { 24488f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Get the sign bit of the RHS. 24498f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner MVT::ValueType IVT = 24508f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Tmp2.getValueType() == MVT::f32 ? MVT::i32 : MVT::i64; 24518f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SDOperand SignBit = DAG.getNode(ISD::BIT_CONVERT, IVT, Tmp2); 24528f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SignBit = DAG.getSetCC(TLI.getSetCCResultTy(), 24538f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SignBit, DAG.getConstant(0, IVT), ISD::SETLT); 24548f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Get the absolute value of the result. 24558f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SDOperand AbsVal = DAG.getNode(ISD::FABS, Tmp1.getValueType(), Tmp1); 24568f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Select between the nabs and abs value based on the sign bit of 24578f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // the input. 24588f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Result = DAG.getNode(ISD::SELECT, AbsVal.getValueType(), SignBit, 24598f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner DAG.getNode(ISD::FNEG, AbsVal.getValueType(), 24608f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner AbsVal), 24618f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner AbsVal); 24628f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Result = LegalizeOp(Result); 24638f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner break; 24648f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner } 24658f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner 24668f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Otherwise, do bitwise ops! 2467912095becac923ff614d7b07728eb345ada67765Evan Cheng MVT::ValueType NVT = 2468912095becac923ff614d7b07728eb345ada67765Evan Cheng Node->getValueType(0) == MVT::f32 ? MVT::i32 : MVT::i64; 2469912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = ExpandFCOPYSIGNToBitwiseOps(Node, NVT, DAG, TLI); 2470912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), Result); 2471912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = LegalizeOp(Result); 2472a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 2473a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner } 2474912095becac923ff614d7b07728eb345ada67765Evan Cheng } 2475a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 2476a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 2477551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::ADDC: 2478551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::SUBC: 2479551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); 2480551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); 2481551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2482551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // Since this produces two values, make sure to remember that we legalized 2483551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // both of them. 2484551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 2485551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 2486551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman return Result; 2487edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 2488551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::ADDE: 2489551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::SUBE: 2490551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); 2491551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); 2492551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); 2493551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2494551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // Since this produces two values, make sure to remember that we legalized 2495551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // both of them. 2496551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 2497551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 2498551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman return Result; 2499551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman 2500419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case ISD::BUILD_PAIR: { 2501419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman MVT::ValueType PairTy = Node->getValueType(0); 2502419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman // TODO: handle the case where the Lo and Hi operands are not of legal type 2503419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Lo 2504419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Hi 2505419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman switch (TLI.getOperationAction(ISD::BUILD_PAIR, PairTy)) { 2506456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 2507456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2508456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner assert(0 && "Cannot promote/custom this yet!"); 2509419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case TargetLowering::Legal: 2510419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman if (Tmp1 != Node->getOperand(0) || Tmp2 != Node->getOperand(1)) 2511419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Result = DAG.getNode(ISD::BUILD_PAIR, PairTy, Tmp1, Tmp2); 2512419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 2513419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case TargetLowering::Expand: 2514419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, PairTy, Tmp1); 2515419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = DAG.getNode(ISD::ANY_EXTEND, PairTy, Tmp2); 2516419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = DAG.getNode(ISD::SHL, PairTy, Tmp2, 2517419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman DAG.getConstant(MVT::getSizeInBits(PairTy)/2, 2518419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman TLI.getShiftAmountTy())); 2519456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::OR, PairTy, Tmp1, Tmp2); 2520419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 2521419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman } 2522419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 2523419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman } 2524419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman 2525c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman case ISD::UREM: 2526c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman case ISD::SREM: 252701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FREM: 2528c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 2529c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS 2530456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2531c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2532456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: assert(0 && "Cannot promote this yet!"); 2533456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2534456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2535456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 253657030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth case TargetLowering::Legal: 2537c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2538456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2539456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2540456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2541456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 254257030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth break; 25434c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner case TargetLowering::Expand: 25446b5578f052c2405c0d622192ccacfd47563c99a8Evan Cheng unsigned DivOpc= (Node->getOpcode() == ISD::UREM) ? ISD::UDIV : ISD::SDIV; 254547857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer bool isSigned = DivOpc == ISD::SDIV; 25464c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner if (MVT::isInteger(Node->getValueType(0))) { 254752cc1ea2a1a374b58801398460a6289723089d91Evan Cheng if (TLI.getOperationAction(DivOpc, Node->getValueType(0)) == 254852cc1ea2a1a374b58801398460a6289723089d91Evan Cheng TargetLowering::Legal) { 254952cc1ea2a1a374b58801398460a6289723089d91Evan Cheng // X % Y -> X-X/Y*Y 255052cc1ea2a1a374b58801398460a6289723089d91Evan Cheng MVT::ValueType VT = Node->getValueType(0); 25516b5578f052c2405c0d622192ccacfd47563c99a8Evan Cheng Result = DAG.getNode(DivOpc, VT, Tmp1, Tmp2); 255252cc1ea2a1a374b58801398460a6289723089d91Evan Cheng Result = DAG.getNode(ISD::MUL, VT, Result, Tmp2); 255352cc1ea2a1a374b58801398460a6289723089d91Evan Cheng Result = DAG.getNode(ISD::SUB, VT, Tmp1, Result); 255452cc1ea2a1a374b58801398460a6289723089d91Evan Cheng } else { 255552cc1ea2a1a374b58801398460a6289723089d91Evan Cheng assert(Node->getValueType(0) == MVT::i32 && 255652cc1ea2a1a374b58801398460a6289723089d91Evan Cheng "Cannot expand this binary operator!"); 255756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = Node->getOpcode() == ISD::UREM 255856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::UREM_I32 : RTLIB::SREM_I32; 255952cc1ea2a1a374b58801398460a6289723089d91Evan Cheng SDOperand Dummy; 256056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, isSigned, Dummy); 256152cc1ea2a1a374b58801398460a6289723089d91Evan Cheng } 25624c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner } else { 25634c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner // Floating point mod -> fmod libcall. 256456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = Node->getValueType(0) == MVT::f32 256556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::REM_F32 : RTLIB::REM_F64; 25664c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner SDOperand Dummy; 256756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, 256856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Dummy); 2569c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman } 2570c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman break; 2571c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman } 2572c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman break; 2573acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAARG: { 2574acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2575acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 2576acc398c195a697795bff3245943d104eb19192b9Nate Begeman 25775c62f337fe846247f5e72acb32844e24b4f18b71Chris Lattner MVT::ValueType VT = Node->getValueType(0); 2578acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), MVT::Other)) { 2579acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 2580456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2581456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2582456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 2583acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 2584c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 2585c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = Result.getValue(0); 2586456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Result.getValue(1); 2587456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2588456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2589456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = TLI.LowerOperation(Result, DAG); 2590456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp2.Val) { 2591456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Tmp2); 2592456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Tmp2.getValue(1)); 2593456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2594456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2595acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2596acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: { 2597466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SrcValueSDNode *SV = cast<SrcValueSDNode>(Node->getOperand(2)); 2598acc398c195a697795bff3245943d104eb19192b9Nate Begeman SDOperand VAList = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp2, 2599466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SV->getValue(), SV->getOffset()); 2600acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Increment the pointer, VAList, to the next vaarg 2601acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp3 = DAG.getNode(ISD::ADD, TLI.getPointerTy(), VAList, 2602acc398c195a697795bff3245943d104eb19192b9Nate Begeman DAG.getConstant(MVT::getSizeInBits(VT)/8, 2603acc398c195a697795bff3245943d104eb19192b9Nate Begeman TLI.getPointerTy())); 2604acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Store the incremented VAList to the legalized pointer 26058b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = DAG.getStore(VAList.getValue(1), Tmp3, Tmp2, SV->getValue(), 26068b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SV->getOffset()); 2607acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Load the actual argument out of the pointer VAList 2608466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getLoad(VT, Tmp3, VAList, NULL, 0); 2609456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Result.getValue(1)); 2610acc398c195a697795bff3245943d104eb19192b9Nate Begeman Result = LegalizeOp(Result); 2611acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2612acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2613acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2614acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Since VAARG produces two values, make sure to remember that we 2615acc398c195a697795bff3245943d104eb19192b9Nate Begeman // legalized both of them. 2616acc398c195a697795bff3245943d104eb19192b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result); 2617456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp1); 2618456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner return Op.ResNo ? Tmp1 : Result; 2619acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2620acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2621acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VACOPY: 2622acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2623acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the dest pointer. 2624acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the source pointer. 2625acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2626acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VACOPY, MVT::Other)) { 2627acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 2628456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2629456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2630456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 2631acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 2632c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, 2633c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Node->getOperand(3), Node->getOperand(4)); 2634456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2635456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2636456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2637456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2638acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2639acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: 2640acc398c195a697795bff3245943d104eb19192b9Nate Begeman // This defaults to loading a pointer from the input and storing it to the 2641acc398c195a697795bff3245943d104eb19192b9Nate Begeman // output, returning the chain. 2642466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SrcValueSDNode *SVD = cast<SrcValueSDNode>(Node->getOperand(3)); 26438b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SrcValueSDNode *SVS = cast<SrcValueSDNode>(Node->getOperand(4)); 2644466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp4 = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp3, SVD->getValue(), 2645466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SVD->getOffset()); 26468b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp4.getValue(1), Tmp4, Tmp2, SVS->getValue(), 26478b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SVS->getOffset()); 2648acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2649acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2650acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2651acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2652acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAEND: 2653acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2654acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 2655acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2656acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VAEND, MVT::Other)) { 2657acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 2658456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2659456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2660456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 2661acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 2662c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 2663456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2664456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Tmp1, DAG); 2665456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2666456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2667acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2668acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: 2669acc398c195a697795bff3245943d104eb19192b9Nate Begeman Result = Tmp1; // Default to a no-op, return the chain 2670acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2671acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2672acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2673acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2674acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VASTART: 2675acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2676acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 2677acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2678c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 2679c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 2680acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VASTART, MVT::Other)) { 2681acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 2682456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2683456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2684456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2685456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2686acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2687acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2688acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2689acc398c195a697795bff3245943d104eb19192b9Nate Begeman 269035ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman case ISD::ROTL: 269135ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman case ISD::ROTR: 269235ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 269335ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS 2694c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2695c9dc11457809b6641de853af2261721a97ad1f26Scott Michel switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2696c9dc11457809b6641de853af2261721a97ad1f26Scott Michel default: 2697c9dc11457809b6641de853af2261721a97ad1f26Scott Michel assert(0 && "ROTL/ROTR legalize operation not supported"); 2698c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 2699c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Legal: 2700c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 2701c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Custom: 2702c9dc11457809b6641de853af2261721a97ad1f26Scott Michel Tmp1 = TLI.LowerOperation(Result, DAG); 2703c9dc11457809b6641de853af2261721a97ad1f26Scott Michel if (Tmp1.Val) Result = Tmp1; 2704c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 2705c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Promote: 2706c9dc11457809b6641de853af2261721a97ad1f26Scott Michel assert(0 && "Do not know how to promote ROTL/ROTR"); 2707c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 2708c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Expand: 2709c9dc11457809b6641de853af2261721a97ad1f26Scott Michel assert(0 && "Do not know how to expand ROTL/ROTR"); 2710c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 2711c9dc11457809b6641de853af2261721a97ad1f26Scott Michel } 271235ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman break; 271335ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman 2714d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: 2715d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Op 2716d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2717456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2718456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner assert(0 && "Cannot custom legalize this yet!"); 2719456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 2720c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2721456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2722456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: { 2723456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner MVT::ValueType OVT = Tmp1.getValueType(); 2724456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 2725456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner unsigned DiffBits = getSizeInBits(NVT) - getSizeInBits(OVT); 2726456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2727456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 2728456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::BSWAP, NVT, Tmp1); 2729456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRL, NVT, Tmp1, 2730456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner DAG.getConstant(DiffBits, TLI.getShiftAmountTy())); 2731456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2732456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2733456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Expand: 2734456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = ExpandBSWAP(Tmp1); 2735456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2736d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman } 2737d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 2738d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman 2739691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTPOP: 2740691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTTZ: 2741691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTLZ: 2742691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Op 2743691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2744456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: assert(0 && "Cannot custom handle this yet!"); 2745691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Legal: 2746c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2747691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2748691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Promote: { 2749691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth MVT::ValueType OVT = Tmp1.getValueType(); 2750691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 2751edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 2752edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner // Zero extend the argument. 2753691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 2754691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth // Perform the larger operation, then subtract if needed. 2755691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = DAG.getNode(Node->getOpcode(), Node->getValueType(0), Tmp1); 2756456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch (Node->getOpcode()) { 2757691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTPOP: 2758691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Result = Tmp1; 2759691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2760691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTTZ: 2761691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth //if Tmp1 == sizeinbits(NVT) then Tmp1 = sizeinbits(Old VT) 27627cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), Tmp1, 27637cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner DAG.getConstant(getSizeInBits(NVT), NVT), 27647cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETEQ); 276500b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SELECT, NVT, Tmp2, 2766691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth DAG.getConstant(getSizeInBits(OVT),NVT), Tmp1); 2767691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2768691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTLZ: 2769456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Tmp1 = Tmp1 - (sizeinbits(NVT) - sizeinbits(Old VT)) 277000b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SUB, NVT, Tmp1, 277100b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen DAG.getConstant(getSizeInBits(NVT) - 2772691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth getSizeInBits(OVT), NVT)); 2773691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2774691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 2775691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2776691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 2777691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Expand: 2778456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = ExpandBitCount(Node->getOpcode(), Tmp1); 2779691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2780691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 2781691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 278200b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen 27832c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Unary operators 27842c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FABS: 27852c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FNEG: 2786da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSQRT: 2787da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSIN: 2788da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FCOS: 27892c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 27902c8086f4b9916b2d02842be5e375276023225fbaChris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2791456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 2792456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 279359ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng isCustom = true; 279459ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng // FALLTHROUGH 27952c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case TargetLowering::Legal: 2796c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 279759ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng if (isCustom) { 279859ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 279959ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng if (Tmp1.Val) Result = Tmp1; 280059ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng } 28012c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 28022c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case TargetLowering::Expand: 2803456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch (Node->getOpcode()) { 2804456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner default: assert(0 && "Unreachable!"); 2805456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case ISD::FNEG: 28062c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Expand Y = FNEG(X) -> Y = SUB -0.0, X 28072c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp2 = DAG.getConstantFP(-0.0, Node->getValueType(0)); 2808456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::FSUB, Node->getValueType(0), Tmp2, Tmp1); 2809f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 2810f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FABS: { 28114af6e0d7836126630f579b0a34f054321187f00bChris Lattner // Expand Y = FABS(X) -> Y = (X >u 0.0) ? X : fneg(X). 28124af6e0d7836126630f579b0a34f054321187f00bChris Lattner MVT::ValueType VT = Node->getValueType(0); 28134af6e0d7836126630f579b0a34f054321187f00bChris Lattner Tmp2 = DAG.getConstantFP(0.0, VT); 28147cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), Tmp1, Tmp2, ISD::SETUGT); 28154af6e0d7836126630f579b0a34f054321187f00bChris Lattner Tmp3 = DAG.getNode(ISD::FNEG, VT, Tmp1); 28164af6e0d7836126630f579b0a34f054321187f00bChris Lattner Result = DAG.getNode(ISD::SELECT, VT, Tmp2, Tmp1, Tmp3); 2817f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 2818f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 2819f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FSQRT: 2820f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FSIN: 2821f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FCOS: { 2822f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner MVT::ValueType VT = Node->getValueType(0); 282356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 2824f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner switch(Node->getOpcode()) { 282556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSQRT: 282656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = VT == MVT::f32 ? RTLIB::SQRT_F32 : RTLIB::SQRT_F64; 282756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 282856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSIN: 282956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = VT == MVT::f32 ? RTLIB::SIN_F32 : RTLIB::SIN_F64; 283056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 283156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FCOS: 283256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = VT == MVT::f32 ? RTLIB::COS_F32 : RTLIB::COS_F64; 283356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 2834f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner default: assert(0 && "Unreachable!"); 2835f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 28362ac4fc032050ff1e0f06bd8e27126e979406effbNate Begeman SDOperand Dummy; 283756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, 283856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Dummy); 2839f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 2840f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 28412c8086f4b9916b2d02842be5e375276023225fbaChris Lattner } 28422c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 28432c8086f4b9916b2d02842be5e375276023225fbaChris Lattner } 28442c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 28456ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner case ISD::FPOWI: { 28466ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner // We always lower FPOWI into a libcall. No target support it yet. 284756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = Node->getValueType(0) == MVT::f32 284856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::POWI_F32 : RTLIB::POWI_F64; 28496ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner SDOperand Dummy; 285056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, 285156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Dummy); 28526ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner break; 28536ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner } 285435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: 285567993f7b974cd17e4372a6b7b9f9cad5ed174df1Chris Lattner if (!isTypeLegal(Node->getOperand(0).getValueType())) { 285635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = ExpandBIT_CONVERT(Node->getValueType(0), Node->getOperand(0)); 285767993f7b974cd17e4372a6b7b9f9cad5ed174df1Chris Lattner } else { 285835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner switch (TLI.getOperationAction(ISD::BIT_CONVERT, 285935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Node->getOperand(0).getValueType())) { 286035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner default: assert(0 && "Unknown operation action!"); 286135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case TargetLowering::Expand: 286235481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = ExpandBIT_CONVERT(Node->getValueType(0), Node->getOperand(0)); 286335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 286435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case TargetLowering::Legal: 286535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 2866c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 286735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 286835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 286935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 287035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 2871d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner case ISD::VBIT_CONVERT: { 2872d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner assert(Op.getOperand(0).getValueType() == MVT::Vector && 2873d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner "Can only have VBIT_CONVERT where input or output is MVT::Vector!"); 2874d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner 2875d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner // The input has to be a vector type, we have to either scalarize it, pack 2876d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner // it, or convert it based on whether the input vector type is legal. 2877d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner SDNode *InVal = Node->getOperand(0).Val; 2878d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner unsigned NumElems = 2879d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner cast<ConstantSDNode>(*(InVal->op_end()-2))->getValue(); 2880d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner MVT::ValueType EVT = cast<VTSDNode>(*(InVal->op_end()-1))->getVT(); 2881d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner 2882d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner // Figure out if there is a Packed type corresponding to this Vector 2883ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // type. If so, convert to the vector type. 2884d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 2885d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner if (TVT != MVT::Other && TLI.isTypeLegal(TVT)) { 2886d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner // Turn this into a bit convert of the packed input. 2887d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), 2888d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner PackVectorOp(Node->getOperand(0), TVT)); 2889d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner break; 2890d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner } else if (NumElems == 1) { 2891d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner // Turn this into a bit convert of the scalar input. 2892d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), 2893d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner PackVectorOp(Node->getOperand(0), EVT)); 2894d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner break; 2895d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner } else { 2896d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner // FIXME: UNIMP! Store then reload 2897d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner assert(0 && "Cast from unsupported vector type not implemented yet!"); 2898d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner } 2899d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner } 2900d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner 29012c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Conversion operators. The source and destination have different types. 2902fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::SINT_TO_FP: 2903fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::UINT_TO_FP: { 2904fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner bool isSigned = Node->getOpcode() == ISD::SINT_TO_FP; 2905fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 2906fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 2907d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen switch (TLI.getOperationAction(Node->getOpcode(), 2908fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getOperand(0).getValueType())) { 2909fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner default: assert(0 && "Unknown operation action!"); 2910456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2911456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2912456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 2913456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 2914456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 2915c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2916456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2917456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2918456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2919456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2920456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2921fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case TargetLowering::Expand: 29226269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey Result = ExpandLegalINT_TO_FP(isSigned, 29236269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey LegalizeOp(Node->getOperand(0)), 29246269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey Node->getValueType(0)); 2925456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2926fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case TargetLowering::Promote: 2927fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = PromoteLegalINT_TO_FP(LegalizeOp(Node->getOperand(0)), 2928fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getValueType(0), 2929fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner isSigned); 2930fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 29315b5b8c27556e5dc8792e37436e4ddd7ab157192dAndrew Lenharth } 2932fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2933fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Expand: 2934fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, 2935fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getValueType(0), Node->getOperand(0)); 2936fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2937fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 2938c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 2939fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner if (isSigned) { 2940c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, Tmp1.getValueType(), 2941c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1, DAG.getValueType(Node->getOperand(0).getValueType())); 2942fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } else { 2943c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, 2944c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Node->getOperand(0).getValueType()); 2945fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 2946c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2947c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); // The 'op' is not necessarily legal! 2948fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2949fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 2950fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2951fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 2952fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::TRUNCATE: 2953fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 2954fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 2955fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 2956c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2957fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2958fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Expand: 2959fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 2960fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner 2961fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner // Since the result is legal, we should just be able to truncate the low 2962fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner // part of the source. 2963fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), Tmp1); 2964fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2965fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 2966fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = PromoteOp(Node->getOperand(0)); 2967fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, Op.getValueType(), Result); 2968fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2969fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 2970fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2971d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 2972fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::FP_TO_SINT: 2973fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::FP_TO_UINT: 2974fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 2975fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 2976f1fa74ee0d30dfdb854f7d3f5ee67437cc82e250Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 2977f1fa74ee0d30dfdb854f7d3f5ee67437cc82e250Chris Lattner 29781618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))){ 29791618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner default: assert(0 && "Unknown operation action!"); 2980456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2981456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2982456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 2983456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 2984c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2985456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2986456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2987456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2988456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2989456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2990456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 2991456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = PromoteLegalFP_TO_INT(Tmp1, Node->getValueType(0), 2992456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Node->getOpcode() == ISD::FP_TO_SINT); 2993456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 29941618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner case TargetLowering::Expand: 2995d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman if (Node->getOpcode() == ISD::FP_TO_UINT) { 2996d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman SDOperand True, False; 2997d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman MVT::ValueType VT = Node->getOperand(0).getValueType(); 2998d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman MVT::ValueType NVT = Node->getValueType(0); 2999d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman unsigned ShiftAmt = MVT::getSizeInBits(Node->getValueType(0))-1; 3000d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp2 = DAG.getConstantFP((double)(1ULL << ShiftAmt), VT); 3001d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp3 = DAG.getSetCC(TLI.getSetCCResultTy(), 3002d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Node->getOperand(0), Tmp2, ISD::SETLT); 3003d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman True = DAG.getNode(ISD::FP_TO_SINT, NVT, Node->getOperand(0)); 3004d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman False = DAG.getNode(ISD::FP_TO_SINT, NVT, 300501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner DAG.getNode(ISD::FSUB, VT, Node->getOperand(0), 3006d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp2)); 3007d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman False = DAG.getNode(ISD::XOR, NVT, False, 3008d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman DAG.getConstant(1ULL << ShiftAmt, NVT)); 3009456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Tmp3, True, False); 3010456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3011d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } else { 3012d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman assert(0 && "Do not know how to expand FP_TO_SINT yet!"); 3013d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } 3014d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman break; 30151618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner } 3016fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 30176af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng case Expand: { 30186af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng // Convert f32 / f64 to i32 / i64. 30196af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng MVT::ValueType VT = Op.getValueType(); 302056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 30216af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng switch (Node->getOpcode()) { 30226af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng case ISD::FP_TO_SINT: 30236af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng if (Node->getOperand(0).getValueType() == MVT::f32) 302456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::i32) 302556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::FPTOSINT_F32_I32 : RTLIB::FPTOSINT_F32_I64; 30266af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng else 302756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::i32) 302856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::FPTOSINT_F64_I32 : RTLIB::FPTOSINT_F64_I64; 30296af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng break; 30306af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng case ISD::FP_TO_UINT: 30316af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng if (Node->getOperand(0).getValueType() == MVT::f32) 303256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::i32) 303356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::FPTOUINT_F32_I32 : RTLIB::FPTOSINT_F32_I64; 30346af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng else 303556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::i32) 303656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::FPTOUINT_F64_I32 : RTLIB::FPTOSINT_F64_I64; 30376af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng break; 30386af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng default: assert(0 && "Unreachable!"); 30396af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng } 30406af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng SDOperand Dummy; 304156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, 304256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Dummy); 30436af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng break; 30446af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng } 3045fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 3046c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3047c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, LegalizeOp(Tmp1)); 3048c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); 3049fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3050fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3051fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3052d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 305313c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 30543e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ZERO_EXTEND: 30553e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SIGN_EXTEND: 305603c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::FP_EXTEND: 305703c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::FP_ROUND: 30583e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3059456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case Expand: assert(0 && "Shouldn't need to expand other operators here!"); 30603e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 30613e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3062c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 30633e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 306403c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Promote: 306503c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (Node->getOpcode()) { 306613c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 3067c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3068c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Tmp1); 306913c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner break; 30701713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner case ISD::ZERO_EXTEND: 30711713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = PromoteOp(Node->getOperand(0)); 307213c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Result); 307323993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 307423993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 307503c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 307603c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::SIGN_EXTEND: 30771713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = PromoteOp(Node->getOperand(0)); 307813c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Result); 30791713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 308015e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result, 308115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 30821713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner break; 308303c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::FP_EXTEND: 30841713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = PromoteOp(Node->getOperand(0)); 30851713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner if (Result.getValueType() != Op.getValueType()) 30861713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner // Dynamically dead while we have only 2 FP types. 30871713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = DAG.getNode(ISD::FP_EXTEND, Op.getValueType(), Result); 30881713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner break; 308903c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::FP_ROUND: 3090f8161d83f0201a32a33a0c875eb43df81d8586abChris Lattner Result = PromoteOp(Node->getOperand(0)); 3091f8161d83f0201a32a33a0c875eb43df81d8586abChris Lattner Result = DAG.getNode(Node->getOpcode(), Op.getValueType(), Result); 3092f8161d83f0201a32a33a0c875eb43df81d8586abChris Lattner break; 309303c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 30943e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 30953e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 30960f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::FP_ROUND_INREG: 309723993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner case ISD::SIGN_EXTEND_INREG: { 30980f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 309915e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner MVT::ValueType ExtraVT = cast<VTSDNode>(Node->getOperand(1))->getVT(); 310045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner 310145b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // If this operation is not supported, convert it to a shl/shr or load/store 310245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // pair. 310355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), ExtraVT)) { 310455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action not supported for this op yet!"); 310555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Legal: 3106c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 310755ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 310855ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Expand: 310945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // If this is an integer extend and shifts are supported, do that. 311023993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner if (Node->getOpcode() == ISD::SIGN_EXTEND_INREG) { 311145b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // NOTE: we could fall back on load/store here too for targets without 311245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // SAR. However, it is doubtful that any exist. 311345b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner unsigned BitsDiff = MVT::getSizeInBits(Node->getValueType(0)) - 311445b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner MVT::getSizeInBits(ExtraVT); 311527ff112948d059524e5f4ebe249a1da0b7c710e8Chris Lattner SDOperand ShiftCst = DAG.getConstant(BitsDiff, TLI.getShiftAmountTy()); 311645b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result = DAG.getNode(ISD::SHL, Node->getValueType(0), 311745b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Node->getOperand(0), ShiftCst); 311845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result = DAG.getNode(ISD::SRA, Node->getValueType(0), 311945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result, ShiftCst); 312045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } else if (Node->getOpcode() == ISD::FP_ROUND_INREG) { 31212d84c4c7b314242346dea1a7f48563333476a4d5Jim Laskey // The only way we can lower this is to turn it into a TRUNCSTORE, 312245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // EXTLOAD pair, targetting a temporary location (a stack slot). 312345b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner 312445b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // NOTE: there is a choice here between constantly creating new stack 312545b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // slots and always reusing the same one. We currently always create 312645b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // new ones, as reuse may inhibit scheduling. 312745b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner const Type *Ty = MVT::getTypeForValueType(ExtraVT); 312844b2c5098f5cf766b4eff43d9eb0d8a9a143e7d8Chris Lattner uint64_t TySize = TLI.getTargetData()->getTypeSize(Ty); 3129d2b7cec527a0efa552628378ebca7a8ca63bb45dChris Lattner unsigned Align = TLI.getTargetData()->getPrefTypeAlignment(Ty); 313045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner MachineFunction &MF = DAG.getMachineFunction(); 3131edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman int SSFI = 313244b2c5098f5cf766b4eff43d9eb0d8a9a143e7d8Chris Lattner MF.getFrameInfo()->CreateStackObject(TySize, Align); 313345b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner SDOperand StackSlot = DAG.getFrameIndex(SSFI, TLI.getPointerTy()); 31348b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getTruncStore(DAG.getEntryNode(), Node->getOperand(0), 31358b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng StackSlot, NULL, 0, ExtraVT); 31365f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner Result = DAG.getExtLoad(ISD::EXTLOAD, Node->getValueType(0), 3137466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result, StackSlot, NULL, 0, ExtraVT); 313845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } else { 313945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner assert(0 && "Unknown op"); 314045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 314155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 314245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 31430f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner break; 31443e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 314545b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 3146456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 31474ddd283f6928fc337c1bf3277566d7b31526e8d9Chris Lattner assert(Result.getValueType() == Op.getValueType() && 31484ddd283f6928fc337c1bf3277566d7b31526e8d9Chris Lattner "Bad legalization!"); 31494ddd283f6928fc337c1bf3277566d7b31526e8d9Chris Lattner 3150456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Make sure that the generated code is itself legal. 3151456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Result != Op) 3152456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Result); 31533e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 315445982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // Note that LegalizeOp may be reentered even from single-use nodes, which 315545982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // means that we always must cache transformed nodes. 315645982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner AddLegalizedOperand(Op, Result); 31573e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner return Result; 31583e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 31593e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 31608b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// PromoteOp - Given an operation that produces a value in an invalid type, 31618b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// promote it to compute the value into a larger type. The produced value will 31628b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// have the correct bits for the low portion of the register, but no guarantee 31638b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// is made about the top bits: it may be zero, sign-extended, or garbage. 316403c8546ec57523970874917854a2fb77b1ff598eChris LattnerSDOperand SelectionDAGLegalize::PromoteOp(SDOperand Op) { 316503c8546ec57523970874917854a2fb77b1ff598eChris Lattner MVT::ValueType VT = Op.getValueType(); 316671c42a0190300a8903aaea80467b88f15f327ea9Chris Lattner MVT::ValueType NVT = TLI.getTypeToTransformTo(VT); 316703c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(getTypeAction(VT) == Promote && 316803c8546ec57523970874917854a2fb77b1ff598eChris Lattner "Caller should expand or legalize operands that are not promotable!"); 316903c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(NVT > VT && MVT::isInteger(NVT) == MVT::isInteger(VT) && 317003c8546ec57523970874917854a2fb77b1ff598eChris Lattner "Cannot promote to smaller type!"); 317103c8546ec57523970874917854a2fb77b1ff598eChris Lattner 317203c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDOperand Tmp1, Tmp2, Tmp3; 317303c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDOperand Result; 317403c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDNode *Node = Op.Val; 317503c8546ec57523970874917854a2fb77b1ff598eChris Lattner 317640030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner DenseMap<SDOperand, SDOperand>::iterator I = PromotedNodes.find(Op); 31776fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner if (I != PromotedNodes.end()) return I->second; 317845982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner 317903c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (Node->getOpcode()) { 3180d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner case ISD::CopyFromReg: 3181d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner assert(0 && "CopyFromReg must be legal!"); 318203c8546ec57523970874917854a2fb77b1ff598eChris Lattner default: 3183e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 3184832171cb9724d2d31c8dfb73172e2be8f6dd13eeBill Wendling cerr << "NODE: "; Node->dump(); cerr << "\n"; 3185e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 318603c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(0 && "Do not know how to promote this operator!"); 318703c8546ec57523970874917854a2fb77b1ff598eChris Lattner abort(); 3188fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: 3189fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Result = DAG.getNode(ISD::UNDEF, NVT); 3190fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 319103c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::Constant: 3192ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner if (VT != MVT::i1) 3193ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND, NVT, Op); 3194ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner else 3195ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner Result = DAG.getNode(ISD::ZERO_EXTEND, NVT, Op); 319603c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(isa<ConstantSDNode>(Result) && "Didn't constant fold zext?"); 319703c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 319803c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::ConstantFP: 319903c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = DAG.getNode(ISD::FP_EXTEND, NVT, Op); 320003c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(isa<ConstantFPSDNode>(Result) && "Didn't constant fold fp_extend?"); 320103c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 3202ef5cd1d3cf7d0b20987a545fcd2d0af2bfe6c422Chris Lattner 320382fbfb6984c1feb7d44a077ac2dc031f4a950005Chris Lattner case ISD::SETCC: 3204c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner assert(isTypeLegal(TLI.getSetCCResultTy()) && "SetCC type is not legal??"); 32057cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Result = DAG.getNode(ISD::SETCC, TLI.getSetCCResultTy(),Node->getOperand(0), 32067cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Node->getOperand(1), Node->getOperand(2)); 320782fbfb6984c1feb7d44a077ac2dc031f4a950005Chris Lattner break; 3208fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner 320903c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::TRUNCATE: 321003c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 321103c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Legal: 321203c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = LegalizeOp(Node->getOperand(0)); 321303c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(Result.getValueType() >= NVT && 321403c8546ec57523970874917854a2fb77b1ff598eChris Lattner "This truncation doesn't make sense!"); 321503c8546ec57523970874917854a2fb77b1ff598eChris Lattner if (Result.getValueType() > NVT) // Truncate to NVT instead of VT 321603c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, NVT, Result); 321703c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 3218e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner case Promote: 3219e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner // The truncation is not required, because we don't guarantee anything 3220e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner // about high bits anyway. 3221e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner Result = PromoteOp(Node->getOperand(0)); 3222e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner break; 322303c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Expand: 322479e46acd35df36477029e9f534ab1a366a98df56Nate Begeman ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 322579e46acd35df36477029e9f534ab1a366a98df56Nate Begeman // Truncate the low part of the expanded value to the result type 3226e21c305ed85b2be4a27784ba52471f6b68fdd255Chris Lattner Result = DAG.getNode(ISD::TRUNCATE, NVT, Tmp1); 322703c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 322803c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 32298b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SIGN_EXTEND: 32308b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::ZERO_EXTEND: 323113c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 32328b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 32338b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: assert(0 && "BUG: Smaller reg should have been promoted!"); 32348b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 32358b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Input is legal? Just do extend all the way to the larger type. 3236456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Node->getOperand(0)); 32378b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 32388b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 32398b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Promote the reg if it's smaller. 32408b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = PromoteOp(Node->getOperand(0)); 32418b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The high bits are not guaranteed to be anything. Insert an extend. 32428b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (Node->getOpcode() == ISD::SIGN_EXTEND) 3243595dc5408ad809b9a9a417db275c43242e54b8dcChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Result, 324415e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 324513c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner else if (Node->getOpcode() == ISD::ZERO_EXTEND) 324623993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 324723993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 32488b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 32498b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 32508b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 325135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: 325235481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = ExpandBIT_CONVERT(Node->getValueType(0), Node->getOperand(0)); 325335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = PromoteOp(Result); 325435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 325535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 32568b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_EXTEND: 32578b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(0 && "Case not implemented. Dynamically dead with 2 FP types!"); 32588b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_ROUND: 32598b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 32608b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: assert(0 && "BUG: Cannot expand FP regs!"); 32618b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: assert(0 && "Unreachable with 2 FP types!"); 32628b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 32638b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Input is legal? Do an FP_ROUND_INREG. 3264456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Node->getOperand(0), 326515e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 32668b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 32678b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 32688b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 32698b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 32708b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SINT_TO_FP: 32718b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UINT_TO_FP: 32728b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 32738b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 327477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // No extra round required here. 3275456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Node->getOperand(0)); 32768b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 32778b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 32788b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 32798b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = PromoteOp(Node->getOperand(0)); 32808b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (Node->getOpcode() == ISD::SINT_TO_FP) 32818b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 328215e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result, 328315e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 32848b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner else 328523993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 328623993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 328777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // No extra round required here. 328877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Result); 32898b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 32908b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: 329177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Result = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, NVT, 329277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Node->getOperand(0)); 329377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // Round if we cannot tolerate excess precision. 329477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner if (NoExcessFPPrecision) 329515e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 329615e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 329777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner break; 32988b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 32998b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 33008b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 33015e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner case ISD::SIGN_EXTEND_INREG: 33025e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Result = PromoteOp(Node->getOperand(0)); 33035e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Result, 33045e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Node->getOperand(1)); 33055e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner break; 33068b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_TO_SINT: 33078b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_TO_UINT: 33088b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 33098b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 33100b1b9dcf22745b533562134c2f0472098fe085fdEvan Cheng case Expand: 3311456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Node->getOperand(0); 33128b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 33138b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 33148b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input result is prerounded, so we don't have to do anything 33158b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // special. 33168b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 33178b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 33188b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 3319d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // If we're promoting a UINT to a larger size, check to see if the new node 3320d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // will be legal. If it isn't, check to see if FP_TO_SINT is legal, since 3321d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // we can use that instead. This allows us to generate better code for 3322d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // FP_TO_UINT for small destination sizes on targets where FP_TO_UINT is not 3323d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // legal, such as PowerPC. 3324d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman if (Node->getOpcode() == ISD::FP_TO_UINT && 3325c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner !TLI.isOperationLegal(ISD::FP_TO_UINT, NVT) && 3326b7f6ef12f682c7068ca7513e088177a0d1046b35Nate Begeman (TLI.isOperationLegal(ISD::FP_TO_SINT, NVT) || 3327b7f6ef12f682c7068ca7513e088177a0d1046b35Nate Begeman TLI.getOperationAction(ISD::FP_TO_SINT, NVT)==TargetLowering::Custom)){ 3328d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Result = DAG.getNode(ISD::FP_TO_SINT, NVT, Tmp1); 3329d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } else { 3330d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 3331d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } 33328b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 33338b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 33342c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FABS: 33352c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FNEG: 33362c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 33372c8086f4b9916b2d02842be5e375276023225fbaChris Lattner assert(Tmp1.getValueType() == NVT); 33382c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 33392c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // NOTE: we do not have to do any extra rounding here for 33402c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // NoExcessFPPrecision, because we know the input will have the appropriate 33412c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // precision, and these operations don't modify precision at all. 33422c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 33432c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 3344da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSQRT: 3345da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSIN: 3346da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FCOS: 3347da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3348da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner assert(Tmp1.getValueType() == NVT); 3349da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 3350456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (NoExcessFPPrecision) 335115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 335215e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 3353da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner break; 3354da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner 33558b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner case ISD::FPOWI: { 33568b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner // Promote f32 powi to f64 powi. Note that this could insert a libcall 33578b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner // directly as well, which may be better. 33588b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 33598b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner assert(Tmp1.getValueType() == NVT); 33608b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner Result = DAG.getNode(ISD::FPOWI, NVT, Tmp1, Node->getOperand(1)); 33618b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner if (NoExcessFPPrecision) 33628b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 33638b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner DAG.getValueType(VT)); 33648b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner break; 33658b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner } 33668b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner 336703c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::AND: 336803c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::OR: 336903c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::XOR: 33700f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::ADD: 33718b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SUB: 33720f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::MUL: 33730f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner // The input may have strange things in the top bits of the registers, but 337401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // these operations don't care. They may have weird bits going out, but 33750f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner // that too is okay if they are integer operations. 33760f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 33770f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 33780f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner assert(Tmp1.getValueType() == NVT && Tmp2.getValueType() == NVT); 33790f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 338001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner break; 338101b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FADD: 338201b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FSUB: 338301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FMUL: 338401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 338501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 338601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner assert(Tmp1.getValueType() == NVT && Tmp2.getValueType() == NVT); 338701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 338801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner 338901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // Floating point operations will give excess precision that we may not be 339001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // able to tolerate. If we DO allow excess precision, just leave it, 339101b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // otherwise excise it. 33928b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // FIXME: Why would we need to round FP ops more than integer ones? 33938b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Is Round(Add(Add(A,B),C)) != Round(Add(Round(Add(A,B)), C)) 339401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner if (NoExcessFPPrecision) 339515e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 339615e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 33970f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner break; 33980f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner 33998b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SDIV: 34008b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SREM: 34018b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // These operators require that their input be sign extended. 34028b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 34038b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 34048b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (MVT::isInteger(NVT)) { 340515e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 340615e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 340715e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp2 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp2, 340815e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 34098b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 34108b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 34118b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 34128b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Perform FP_ROUND: this is probably overly pessimistic. 34138b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (MVT::isFloatingPoint(NVT) && NoExcessFPPrecision) 341415e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 341515e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 34168b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 341701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FDIV: 341801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FREM: 3419a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case ISD::FCOPYSIGN: 342001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // These operators require that their input be fp extended. 3421ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman switch (getTypeAction(Node->getOperand(0).getValueType())) { 3422ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Legal: 3423ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); 3424ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman break; 3425ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Promote: 3426ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman Tmp1 = PromoteOp(Node->getOperand(0)); 3427ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman break; 3428ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Expand: 3429ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman assert(0 && "not implemented"); 3430ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman } 3431ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman switch (getTypeAction(Node->getOperand(1).getValueType())) { 3432ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Legal: 3433ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); 3434ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman break; 3435ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Promote: 3436ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman Tmp2 = PromoteOp(Node->getOperand(1)); 3437ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman break; 3438ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Expand: 3439ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman assert(0 && "not implemented"); 3440ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman } 344101b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 344201b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner 344301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // Perform FP_ROUND: this is probably overly pessimistic. 3444a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner if (NoExcessFPPrecision && Node->getOpcode() != ISD::FCOPYSIGN) 344501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 344601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner DAG.getValueType(VT)); 344701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner break; 34488b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 34498b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UDIV: 34508b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UREM: 34518b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // These operators require that their input be zero extended. 34528b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 34538b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 34548b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(MVT::isInteger(NVT) && "Operators don't apply to FP!"); 345523993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 345623993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp2 = DAG.getZeroExtendInReg(Tmp2, VT); 34578b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 34588b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 34598b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 34608b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SHL: 34618b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3462456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SHL, NVT, Tmp1, Node->getOperand(1)); 34638b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 34648b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SRA: 34658b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input value must be properly sign extended. 34668b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 346715e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 346815e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 3469456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRA, NVT, Tmp1, Node->getOperand(1)); 34708b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 34718b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SRL: 34728b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input value must be properly zero extended. 34738b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 347423993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 3475456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRL, NVT, Tmp1, Node->getOperand(1)); 34768b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 34770aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman 34780aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman case ISD::VAARG: 3479456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Node->getOperand(0); // Get the chain. 3480456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = Node->getOperand(1); // Get the pointer. 34810aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman if (TLI.getOperationAction(ISD::VAARG, VT) == TargetLowering::Custom) { 34820aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Tmp3 = DAG.getVAArg(VT, Tmp1, Tmp2, Node->getOperand(2)); 34830aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Result = TLI.CustomPromoteOperation(Tmp3, DAG); 34840aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman } else { 3485466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SrcValueSDNode *SV = cast<SrcValueSDNode>(Node->getOperand(2)); 34860aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman SDOperand VAList = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp2, 3487466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SV->getValue(), SV->getOffset()); 34880aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Increment the pointer, VAList, to the next vaarg 34890aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Tmp3 = DAG.getNode(ISD::ADD, TLI.getPointerTy(), VAList, 34900aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman DAG.getConstant(MVT::getSizeInBits(VT)/8, 34910aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman TLI.getPointerTy())); 34920aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Store the incremented VAList to the legalized pointer 34938b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = DAG.getStore(VAList.getValue(1), Tmp3, Tmp2, SV->getValue(), 34948b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SV->getOffset()); 34950aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Load the actual argument out of the pointer VAList 3496466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getExtLoad(ISD::EXTLOAD, NVT, Tmp3, VAList, NULL, 0, VT); 34970aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman } 34980aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Remember that we legalized the chain. 3499456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 35000aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman break; 35010aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman 3502466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case ISD::LOAD: { 3503466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LoadSDNode *LD = cast<LoadSDNode>(Node); 350462f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng ISD::LoadExtType ExtType = ISD::isNON_EXTLoad(Node) 350562f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng ? ISD::EXTLOAD : LD->getExtensionType(); 350662f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng Result = DAG.getExtLoad(ExtType, NVT, 350762f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng LD->getChain(), LD->getBasePtr(), 350855b5708b6bbffc79cf133c31faa51d144bfc5d4aChris Lattner LD->getSrcValue(), LD->getSrcValueOffset(), 35092e49f090f9656af7d5ed4d5c4e9fa26af59c7233Evan Cheng LD->getLoadedVT()); 35104c8f8f0481b26818d7810a6a585e7ecf52973e93Chris Lattner // Remember that we legalized the chain. 3511456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 35124c8f8f0481b26818d7810a6a585e7ecf52973e93Chris Lattner break; 3513466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 351403c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::SELECT: 351503c8546ec57523970874917854a2fb77b1ff598eChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Legalize the op0 351603c8546ec57523970874917854a2fb77b1ff598eChris Lattner Tmp3 = PromoteOp(Node->getOperand(2)); // Legalize the op1 3517456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), Tmp2, Tmp3); 351803c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 35199373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case ISD::SELECT_CC: 35209373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2 = PromoteOp(Node->getOperand(2)); // True 35219373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp3 = PromoteOp(Node->getOperand(3)); // False 35229373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 3523456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Node->getOperand(1), Tmp2, Tmp3, Node->getOperand(4)); 35249373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 3525d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: 3526d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = Node->getOperand(0); 3527d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 3528d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = DAG.getNode(ISD::BSWAP, NVT, Tmp1); 3529d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Result = DAG.getNode(ISD::SRL, NVT, Tmp1, 3530d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman DAG.getConstant(getSizeInBits(NVT) - getSizeInBits(VT), 3531d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman TLI.getShiftAmountTy())); 3532d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 3533fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTPOP: 3534fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTTZ: 3535fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTLZ: 3536456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Zero extend the argument 3537456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Node->getOperand(0)); 3538fecf095292991bdf9396fec474011446107f9813Andrew Lenharth // Perform the larger operation, then subtract if needed. 3539fecf095292991bdf9396fec474011446107f9813Andrew Lenharth Tmp1 = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 3540456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch(Node->getOpcode()) { 3541fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTPOP: 3542fecf095292991bdf9396fec474011446107f9813Andrew Lenharth Result = Tmp1; 3543fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 3544fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTTZ: 3545456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // if Tmp1 == sizeinbits(NVT) then Tmp1 = sizeinbits(Old VT) 3546d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), Tmp1, 35477cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner DAG.getConstant(getSizeInBits(NVT), NVT), ISD::SETEQ); 354800b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SELECT, NVT, Tmp2, 3549456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner DAG.getConstant(getSizeInBits(VT), NVT), Tmp1); 3550fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 3551fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTLZ: 3552fecf095292991bdf9396fec474011446107f9813Andrew Lenharth //Tmp1 = Tmp1 - (sizeinbits(NVT) - sizeinbits(Old VT)) 355300b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SUB, NVT, Tmp1, 355400b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen DAG.getConstant(getSizeInBits(NVT) - 3555fecf095292991bdf9396fec474011446107f9813Andrew Lenharth getSizeInBits(VT), NVT)); 3556fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 3557fecf095292991bdf9396fec474011446107f9813Andrew Lenharth } 3558fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 35591597221eace1c53ce5f84a7018397497d11a8393Chris Lattner case ISD::VEXTRACT_VECTOR_ELT: 35601597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Result = PromoteOp(LowerVEXTRACT_VECTOR_ELT(Op)); 35611597221eace1c53ce5f84a7018397497d11a8393Chris Lattner break; 35624aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner case ISD::EXTRACT_VECTOR_ELT: 35634aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner Result = PromoteOp(ExpandEXTRACT_VECTOR_ELT(Op)); 35644aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner break; 356503c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 356603c8546ec57523970874917854a2fb77b1ff598eChris Lattner 356703c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(Result.Val && "Didn't set a result!"); 3568456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 3569456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Make sure the result is itself legal. 3570456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Result); 3571456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 3572456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Remember that we promoted this! 357303c8546ec57523970874917854a2fb77b1ff598eChris Lattner AddPromotedOperand(Op, Result); 357403c8546ec57523970874917854a2fb77b1ff598eChris Lattner return Result; 357503c8546ec57523970874917854a2fb77b1ff598eChris Lattner} 35763e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 35771597221eace1c53ce5f84a7018397497d11a8393Chris Lattner/// LowerVEXTRACT_VECTOR_ELT - Lower a VEXTRACT_VECTOR_ELT operation into a 35781597221eace1c53ce5f84a7018397497d11a8393Chris Lattner/// EXTRACT_VECTOR_ELT operation, to memory operations, or to scalar code based 35791597221eace1c53ce5f84a7018397497d11a8393Chris Lattner/// on the vector type. The return type of this matches the element type of the 35801597221eace1c53ce5f84a7018397497d11a8393Chris Lattner/// vector, which may not be legal for the target. 35811597221eace1c53ce5f84a7018397497d11a8393Chris LattnerSDOperand SelectionDAGLegalize::LowerVEXTRACT_VECTOR_ELT(SDOperand Op) { 35821597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // We know that operand #0 is the Vec vector. If the index is a constant 35831597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // or if the invec is a supported hardware type, we can use it. Otherwise, 35841597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // lower to a store then an indexed load. 35851597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SDOperand Vec = Op.getOperand(0); 35861597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SDOperand Idx = LegalizeOp(Op.getOperand(1)); 35871597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 35881597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SDNode *InVal = Vec.Val; 35891597221eace1c53ce5f84a7018397497d11a8393Chris Lattner unsigned NumElems = cast<ConstantSDNode>(*(InVal->op_end()-2))->getValue(); 35901597221eace1c53ce5f84a7018397497d11a8393Chris Lattner MVT::ValueType EVT = cast<VTSDNode>(*(InVal->op_end()-1))->getVT(); 35911597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 35921597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // Figure out if there is a Packed type corresponding to this Vector 3593ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // type. If so, convert to the vector type. 35941597221eace1c53ce5f84a7018397497d11a8393Chris Lattner MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 35951597221eace1c53ce5f84a7018397497d11a8393Chris Lattner if (TVT != MVT::Other && TLI.isTypeLegal(TVT)) { 35961597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // Turn this into a packed extract_vector_elt operation. 35971597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Vec = PackVectorOp(Vec, TVT); 35981597221eace1c53ce5f84a7018397497d11a8393Chris Lattner return DAG.getNode(ISD::EXTRACT_VECTOR_ELT, Op.getValueType(), Vec, Idx); 35991597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } else if (NumElems == 1) { 36001597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // This must be an access of the only element. Return it. 36011597221eace1c53ce5f84a7018397497d11a8393Chris Lattner return PackVectorOp(Vec, EVT); 36021597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } else if (ConstantSDNode *CIdx = dyn_cast<ConstantSDNode>(Idx)) { 36031597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SDOperand Lo, Hi; 36041597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SplitVectorOp(Vec, Lo, Hi); 36051597221eace1c53ce5f84a7018397497d11a8393Chris Lattner if (CIdx->getValue() < NumElems/2) { 36061597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Vec = Lo; 36071597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } else { 36081597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Vec = Hi; 36091597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Idx = DAG.getConstant(CIdx->getValue() - NumElems/2, Idx.getValueType()); 36101597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } 36111597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 36121597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // It's now an extract from the appropriate high or low part. Recurse. 36131597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 36141597221eace1c53ce5f84a7018397497d11a8393Chris Lattner return LowerVEXTRACT_VECTOR_ELT(Op); 36151597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } else { 36161597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // Variable index case for extract element. 36171597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // FIXME: IMPLEMENT STORE/LOAD lowering. Need alignment of stack slot!! 36181597221eace1c53ce5f84a7018397497d11a8393Chris Lattner assert(0 && "unimp!"); 36191597221eace1c53ce5f84a7018397497d11a8393Chris Lattner return SDOperand(); 36201597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } 36211597221eace1c53ce5f84a7018397497d11a8393Chris Lattner} 36221597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 36234aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner/// ExpandEXTRACT_VECTOR_ELT - Expand an EXTRACT_VECTOR_ELT operation into 36244aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner/// memory traffic. 36254aab2f4ab50d2b04dc559c7b197f1de7612c896bChris LattnerSDOperand SelectionDAGLegalize::ExpandEXTRACT_VECTOR_ELT(SDOperand Op) { 36264aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner SDOperand Vector = Op.getOperand(0); 36274aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner SDOperand Idx = Op.getOperand(1); 36284aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner 36294aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner // If the target doesn't support this, store the value to a temporary 36304aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner // stack slot, then LOAD the scalar element back out. 36314aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner SDOperand StackPtr = CreateStackTemporary(Vector.getValueType()); 36328b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDOperand Ch = DAG.getStore(DAG.getEntryNode(), Vector, StackPtr, NULL, 0); 36334aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner 36344aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner // Add the offset to the index. 36354aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner unsigned EltSize = MVT::getSizeInBits(Op.getValueType())/8; 36364aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner Idx = DAG.getNode(ISD::MUL, Idx.getValueType(), Idx, 36374aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner DAG.getConstant(EltSize, Idx.getValueType())); 36384aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner StackPtr = DAG.getNode(ISD::ADD, Idx.getValueType(), Idx, StackPtr); 36394aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner 3640466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return DAG.getLoad(Op.getValueType(), Ch, StackPtr, NULL, 0); 36414aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner} 36424aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner 36431597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 3644750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// LegalizeSetCCOperands - Attempts to create a legal LHS and RHS for a SETCC 3645750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// with condition CC on the current target. This usually involves legalizing 3646750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// or promoting the arguments. In the case where LHS and RHS must be expanded, 3647750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// there may be no choice but to create a new SetCC node to represent the 3648750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// legalized value of setcc lhs, rhs. In this case, the value is returned in 3649750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// LHS, and the SDOperand returned in RHS has a nil SDNode value. 3650750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begemanvoid SelectionDAGLegalize::LegalizeSetCCOperands(SDOperand &LHS, 3651750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand &RHS, 3652750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand &CC) { 3653750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand Tmp1, Tmp2, Result; 3654750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 3655750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (getTypeAction(LHS.getValueType())) { 3656750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case Legal: 3657750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = LegalizeOp(LHS); // LHS 3658750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = LegalizeOp(RHS); // RHS 3659750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 3660750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case Promote: 3661750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = PromoteOp(LHS); // LHS 3662750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = PromoteOp(RHS); // RHS 3663750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 3664750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If this is an FP compare, the operands have already been extended. 3665750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (MVT::isInteger(LHS.getValueType())) { 3666750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman MVT::ValueType VT = LHS.getValueType(); 3667750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman MVT::ValueType NVT = TLI.getTypeToTransformTo(VT); 3668750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 3669750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Otherwise, we have to insert explicit sign or zero extends. Note 3670750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // that we could insert sign extends for ALL conditions, but zero extend 3671750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // is cheaper on many machines (an AND instead of two shifts), so prefer 3672750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // it. 3673750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (cast<CondCodeSDNode>(CC)->get()) { 3674750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "Unknown integer comparison!"); 3675750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETEQ: 3676750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETNE: 3677750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGE: 3678750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGT: 3679750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULE: 3680750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULT: 3681750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // ALL of these operations will work if we either sign or zero extend 3682750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the operands (including the unsigned comparisons!). Zero extend is 3683750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // usually a simpler/cheaper operation, so prefer it. 3684750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 3685750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getZeroExtendInReg(Tmp2, VT); 3686750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 3687750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGE: 3688750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGT: 3689750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLT: 3690750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLE: 3691750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 3692750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman DAG.getValueType(VT)); 3693750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp2, 3694750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman DAG.getValueType(VT)); 3695750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 3696750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 3697750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 3698750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 36992b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case Expand: { 37002b49c500838666dd0186d021389d4dd70ffda240Evan Cheng MVT::ValueType VT = LHS.getValueType(); 37012b49c500838666dd0186d021389d4dd70ffda240Evan Cheng if (VT == MVT::f32 || VT == MVT::f64) { 37022b49c500838666dd0186d021389d4dd70ffda240Evan Cheng // Expand into one or more soft-fp libcall(s). 370356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC1, LC2 = RTLIB::UNKNOWN_LIBCALL; 37042b49c500838666dd0186d021389d4dd70ffda240Evan Cheng switch (cast<CondCodeSDNode>(CC)->get()) { 37052b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETEQ: 37062b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOEQ: 370756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OEQ_F32 : RTLIB::OEQ_F64; 37082b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 37092b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETNE: 37102b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUNE: 371156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::UNE_F32 : RTLIB::UNE_F64; 37122b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 37132b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETGE: 37142b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOGE: 371556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OGE_F32 : RTLIB::OGE_F64; 37162b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 37172b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETLT: 37182b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOLT: 371956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OLT_F32 : RTLIB::OLT_F64; 37202b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 37212b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETLE: 37222b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOLE: 372356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OLE_F32 : RTLIB::OLE_F64; 37242b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 37252b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETGT: 37262b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOGT: 372756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OGT_F32 : RTLIB::OGT_F64; 37282b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 37292b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUO: 3730d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::UO_F32 : RTLIB::UO_F64; 3731d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng break; 37322b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETO: 37335efdecc030f1a71cdb5b49d97c6c1c45e68ff731Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::O_F32 : RTLIB::O_F64; 37342b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 37352b49c500838666dd0186d021389d4dd70ffda240Evan Cheng default: 373656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::UO_F32 : RTLIB::UO_F64; 37372b49c500838666dd0186d021389d4dd70ffda240Evan Cheng switch (cast<CondCodeSDNode>(CC)->get()) { 37382b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETONE: 37392b49c500838666dd0186d021389d4dd70ffda240Evan Cheng // SETONE = SETOLT | SETOGT 374056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OLT_F32 : RTLIB::OLT_F64; 37412b49c500838666dd0186d021389d4dd70ffda240Evan Cheng // Fallthrough 37422b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUGT: 374356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OGT_F32 : RTLIB::OGT_F64; 37442b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 37452b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUGE: 374656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OGE_F32 : RTLIB::OGE_F64; 37472b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 37482b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETULT: 374956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OLT_F32 : RTLIB::OLT_F64; 37502b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 37512b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETULE: 375256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OLE_F32 : RTLIB::OLE_F64; 37532b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 375456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::SETUEQ: 375556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OEQ_F32 : RTLIB::OEQ_F64; 375656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 37572b49c500838666dd0186d021389d4dd70ffda240Evan Cheng default: assert(0 && "Unsupported FP setcc!"); 37582b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 37592b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 37602b49c500838666dd0186d021389d4dd70ffda240Evan Cheng 37612b49c500838666dd0186d021389d4dd70ffda240Evan Cheng SDOperand Dummy; 376256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Tmp1 = ExpandLibCall(TLI.getLibcallName(LC1), 376347857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer DAG.getNode(ISD::MERGE_VALUES, VT, LHS, RHS).Val, 3764b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer false /*sign irrelevant*/, Dummy); 37652b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp2 = DAG.getConstant(0, MVT::i32); 3766d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng CC = DAG.getCondCode(TLI.getCmpLibcallCC(LC1)); 376756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng if (LC2 != RTLIB::UNKNOWN_LIBCALL) { 37682b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp1 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultTy(), Tmp1, Tmp2, CC); 376956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LHS = ExpandLibCall(TLI.getLibcallName(LC2), 377047857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer DAG.getNode(ISD::MERGE_VALUES, VT, LHS, RHS).Val, 3771b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer false /*sign irrelevant*/, Dummy); 37722b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp2 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultTy(), LHS, Tmp2, 3773d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng DAG.getCondCode(TLI.getCmpLibcallCC(LC2))); 37742b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp1 = DAG.getNode(ISD::OR, Tmp1.getValueType(), Tmp1, Tmp2); 37752b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp2 = SDOperand(); 37762b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 37772b49c500838666dd0186d021389d4dd70ffda240Evan Cheng LHS = Tmp1; 37782b49c500838666dd0186d021389d4dd70ffda240Evan Cheng RHS = Tmp2; 37792b49c500838666dd0186d021389d4dd70ffda240Evan Cheng return; 37802b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 37812b49c500838666dd0186d021389d4dd70ffda240Evan Cheng 3782750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand LHSLo, LHSHi, RHSLo, RHSHi; 3783750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman ExpandOp(LHS, LHSLo, LHSHi); 37842b49c500838666dd0186d021389d4dd70ffda240Evan Cheng ExpandOp(RHS, RHSLo, RHSHi); 3785750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (cast<CondCodeSDNode>(CC)->get()) { 3786750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETEQ: 3787750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETNE: 3788750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (RHSLo == RHSHi) 3789750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (ConstantSDNode *RHSCST = dyn_cast<ConstantSDNode>(RHSLo)) 3790750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (RHSCST->isAllOnesValue()) { 3791750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Comparison to -1. 3792750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::AND, LHSLo.getValueType(), LHSLo, LHSHi); 3793750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = RHSLo; 3794750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 3795750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 3796750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 3797750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::XOR, LHSLo.getValueType(), LHSLo, RHSLo); 3798750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getNode(ISD::XOR, LHSLo.getValueType(), LHSHi, RHSHi); 3799750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::OR, Tmp1.getValueType(), Tmp1, Tmp2); 3800750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getConstant(0, Tmp1.getValueType()); 3801750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 3802750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: 3803750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If this is a comparison of the sign bit, just look at the top part. 3804750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // X > -1, x < 0 3805750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (ConstantSDNode *CST = dyn_cast<ConstantSDNode>(RHS)) 3806750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if ((cast<CondCodeSDNode>(CC)->get() == ISD::SETLT && 3807750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CST->getValue() == 0) || // X < 0 3808750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman (cast<CondCodeSDNode>(CC)->get() == ISD::SETGT && 3809750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CST->isAllOnesValue())) { // X > -1 3810750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = LHSHi; 3811750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = RHSHi; 3812750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 3813750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 3814750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 3815750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // FIXME: This generated code sucks. 3816750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman ISD::CondCode LowCC; 38172e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng ISD::CondCode CCCode = cast<CondCodeSDNode>(CC)->get(); 38182e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng switch (CCCode) { 3819750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "Unknown integer setcc!"); 3820750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLT: 3821750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULT: LowCC = ISD::SETULT; break; 3822750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGT: 3823750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGT: LowCC = ISD::SETUGT; break; 3824750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLE: 3825750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULE: LowCC = ISD::SETULE; break; 3826750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGE: 3827750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGE: LowCC = ISD::SETUGE; break; 3828750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 3829750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 3830750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Tmp1 = lo(op1) < lo(op2) // Always unsigned comparison 3831750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Tmp2 = hi(op1) < hi(op2) // Signedness depends on operands 3832750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // dest = hi(op1) == hi(op2) ? Tmp1 : Tmp2; 3833750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 3834750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // NOTE: on targets without efficient SELECT of bools, we can always use 3835750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // this identity: (B1 ? B2 : B3) --> (B1 & B2)|(!B1&B3) 38362e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng TargetLowering::DAGCombinerInfo DagCombineInfo(DAG, false, true, NULL); 38372e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp1 = TLI.SimplifySetCC(TLI.getSetCCResultTy(), LHSLo, RHSLo, LowCC, 38382e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng false, DagCombineInfo); 38392e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng if (!Tmp1.Val) 38402e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp1 = DAG.getSetCC(TLI.getSetCCResultTy(), LHSLo, RHSLo, LowCC); 38412e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp2 = TLI.SimplifySetCC(TLI.getSetCCResultTy(), LHSHi, RHSHi, 38422e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng CCCode, false, DagCombineInfo); 38432e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng if (!Tmp2.Val) 38442e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp2 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultTy(), LHSHi, RHSHi, CC); 38452e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng 38462e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng ConstantSDNode *Tmp1C = dyn_cast<ConstantSDNode>(Tmp1.Val); 38472e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng ConstantSDNode *Tmp2C = dyn_cast<ConstantSDNode>(Tmp2.Val); 38482e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng if ((Tmp1C && Tmp1C->getValue() == 0) || 38492e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng (Tmp2C && Tmp2C->getValue() == 0 && 38502e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng (CCCode == ISD::SETLE || CCCode == ISD::SETGE || 38512e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng CCCode == ISD::SETUGE || CCCode == ISD::SETULE)) || 38522e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng (Tmp2C && Tmp2C->getValue() == 1 && 38532e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng (CCCode == ISD::SETLT || CCCode == ISD::SETGT || 38542e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng CCCode == ISD::SETUGT || CCCode == ISD::SETULT))) { 38552e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng // low part is known false, returns high part. 38562e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng // For LE / GE, if high part is known false, ignore the low part. 38572e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng // For LT / GT, if high part is known true, ignore the low part. 38582e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp1 = Tmp2; 38592e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp2 = SDOperand(); 38602e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng } else { 38612e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Result = TLI.SimplifySetCC(TLI.getSetCCResultTy(), LHSHi, RHSHi, 38622e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng ISD::SETEQ, false, DagCombineInfo); 38632e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng if (!Result.Val) 38642e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Result=DAG.getSetCC(TLI.getSetCCResultTy(), LHSHi, RHSHi, ISD::SETEQ); 38652e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Result = LegalizeOp(DAG.getNode(ISD::SELECT, Tmp1.getValueType(), 38662e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Result, Tmp1, Tmp2)); 38672e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp1 = Result; 38682e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp2 = SDOperand(); 38692e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng } 3870750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 3871750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 38722b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 3873750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LHS = Tmp1; 3874750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman RHS = Tmp2; 3875750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman} 3876750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 387735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner/// ExpandBIT_CONVERT - Expand a BIT_CONVERT node into a store/load combination. 3878232348d66fcfe8f42f8b14cfacd2df3d00d2596eChris Lattner/// The resultant code need not be legal. Note that SrcOp is the input operand 3879232348d66fcfe8f42f8b14cfacd2df3d00d2596eChris Lattner/// to the BIT_CONVERT, not the BIT_CONVERT node itself. 388035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris LattnerSDOperand SelectionDAGLegalize::ExpandBIT_CONVERT(MVT::ValueType DestVT, 388135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner SDOperand SrcOp) { 388235481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Create the stack frame object. 3883ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand FIPtr = CreateStackTemporary(DestVT); 388435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 388535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Emit a store to the stack slot. 38868b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDOperand Store = DAG.getStore(DAG.getEntryNode(), SrcOp, FIPtr, NULL, 0); 388735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Result is a load from the stack slot. 3888466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return DAG.getLoad(DestVT, Store, FIPtr, NULL, 0); 388935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner} 389035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 38914352cc9e217e4482ad53f5a7b92c3543f569eb6eChris LattnerSDOperand SelectionDAGLegalize::ExpandSCALAR_TO_VECTOR(SDNode *Node) { 38924352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Create a vector sized/aligned stack slot, store the value to element #0, 38934352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // then load the whole vector back out. 38944352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner SDOperand StackPtr = CreateStackTemporary(Node->getValueType(0)); 3895786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng SDOperand Ch = DAG.getStore(DAG.getEntryNode(), Node->getOperand(0), StackPtr, 38968b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng NULL, 0); 3897466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return DAG.getLoad(Node->getValueType(0), Ch, StackPtr, NULL, 0); 38984352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner} 38994352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 39004352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 3901ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner/// ExpandBUILD_VECTOR - Expand a BUILD_VECTOR node on targets that don't 3902ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner/// support the operation, but do support the resultant packed vector type. 3903ce87215131efcc68dcf7fca61055ad783a7aeb0eChris LattnerSDOperand SelectionDAGLegalize::ExpandBUILD_VECTOR(SDNode *Node) { 3904ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 3905ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // If the only non-undef value is the low element, turn this into a 390687100e0b83b808757bf44dabecd1d1048255d1adChris Lattner // SCALAR_TO_VECTOR node. If this is { X, X, X, X }, determine X. 3907033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng unsigned NumElems = Node->getNumOperands(); 3908ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner bool isOnlyLowElement = true; 390987100e0b83b808757bf44dabecd1d1048255d1adChris Lattner SDOperand SplatValue = Node->getOperand(0); 3910033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng std::map<SDOperand, std::vector<unsigned> > Values; 3911033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng Values[SplatValue].push_back(0); 39122eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner bool isConstant = true; 39132eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (!isa<ConstantFPSDNode>(SplatValue) && !isa<ConstantSDNode>(SplatValue) && 39142eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SplatValue.getOpcode() != ISD::UNDEF) 39152eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner isConstant = false; 39162eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 3917033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (unsigned i = 1; i < NumElems; ++i) { 3918033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng SDOperand V = Node->getOperand(i); 391989a1b380a475cbe477e50ff4b94335596b37f21aChris Lattner Values[V].push_back(i); 3920033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (V.getOpcode() != ISD::UNDEF) 3921ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner isOnlyLowElement = false; 3922033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (SplatValue != V) 392387100e0b83b808757bf44dabecd1d1048255d1adChris Lattner SplatValue = SDOperand(0,0); 39242eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 39252eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If this isn't a constant element or an undef, we can't use a constant 39262eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // pool load. 39272eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (!isa<ConstantFPSDNode>(V) && !isa<ConstantSDNode>(V) && 39282eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner V.getOpcode() != ISD::UNDEF) 39292eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner isConstant = false; 3930ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 3931ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 3932ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (isOnlyLowElement) { 3933ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // If the low element is an undef too, then this whole things is an undef. 3934ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (Node->getOperand(0).getOpcode() == ISD::UNDEF) 3935ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner return DAG.getNode(ISD::UNDEF, Node->getValueType(0)); 3936ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Otherwise, turn this into a scalar_to_vector node. 3937ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner return DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), 3938ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Node->getOperand(0)); 3939ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 3940ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 39412eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If all elements are constants, create a load from the constant pool. 3942ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (isConstant) { 3943ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::ValueType VT = Node->getValueType(0); 3944ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner const Type *OpNTy = 3945ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::getTypeForValueType(Node->getOperand(0).getValueType()); 3946ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner std::vector<Constant*> CV; 3947033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (unsigned i = 0, e = NumElems; i != e; ++i) { 3948ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (ConstantFPSDNode *V = 3949ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner dyn_cast<ConstantFPSDNode>(Node->getOperand(i))) { 3950ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner CV.push_back(ConstantFP::get(OpNTy, V->getValue())); 3951ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } else if (ConstantSDNode *V = 3952ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner dyn_cast<ConstantSDNode>(Node->getOperand(i))) { 3953b83eb6447ba155342598f0fabe1f08f5baa9164aReid Spencer CV.push_back(ConstantInt::get(OpNTy, V->getValue())); 3954ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } else { 3955ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner assert(Node->getOperand(i).getOpcode() == ISD::UNDEF); 3956ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner CV.push_back(UndefValue::get(OpNTy)); 3957ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 3958ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 39599d6565a5b1fbc4286d6ee638d8f47a3171a9ed7eReid Spencer Constant *CP = ConstantVector::get(CV); 3960ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand CPIdx = DAG.getConstantPool(CP, TLI.getPointerTy()); 3961466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return DAG.getLoad(VT, DAG.getEntryNode(), CPIdx, NULL, 0); 3962ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 39632eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 39642eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (SplatValue.Val) { // Splat of one value? 39652eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Build the shuffle constant vector: <0, 0, 0, 0> 39662eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner MVT::ValueType MaskVT = 39672eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner MVT::getIntVectorWithNumElements(NumElems); 39682eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SDOperand Zero = DAG.getConstant(0, MVT::getVectorBaseType(MaskVT)); 39692eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner std::vector<SDOperand> ZeroVec(NumElems, Zero); 3970bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand SplatMask = DAG.getNode(ISD::BUILD_VECTOR, MaskVT, 3971bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &ZeroVec[0], ZeroVec.size()); 3972033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 39732eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If the target supports VECTOR_SHUFFLE and this shuffle mask, use it. 39744352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (isShuffleLegal(Node->getValueType(0), SplatMask)) { 39752eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Get the splatted value into the low element of a vector register. 39762eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SDOperand LowValVec = 39772eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), SplatValue); 39782eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 39792eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Return shuffle(LowValVec, undef, <0,0,0,0>) 39802eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner return DAG.getNode(ISD::VECTOR_SHUFFLE, Node->getValueType(0), LowValVec, 39812eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner DAG.getNode(ISD::UNDEF, Node->getValueType(0)), 39822eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SplatMask); 39832eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner } 39842eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner } 39852eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 3986033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // If there are only two unique elements, we may be able to turn this into a 3987033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // vector shuffle. 3988033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (Values.size() == 2) { 3989033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // Build the shuffle constant vector: e.g. <0, 4, 0, 4> 3990033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng MVT::ValueType MaskVT = 3991033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng MVT::getIntVectorWithNumElements(NumElems); 3992033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng std::vector<SDOperand> MaskVec(NumElems); 3993033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng unsigned i = 0; 3994033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (std::map<SDOperand,std::vector<unsigned> >::iterator I=Values.begin(), 3995033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng E = Values.end(); I != E; ++I) { 3996033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (std::vector<unsigned>::iterator II = I->second.begin(), 3997033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng EE = I->second.end(); II != EE; ++II) 3998033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng MaskVec[*II] = DAG.getConstant(i, MVT::getVectorBaseType(MaskVT)); 3999033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng i += NumElems; 4000033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 4001bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand ShuffleMask = DAG.getNode(ISD::BUILD_VECTOR, MaskVT, 4002bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &MaskVec[0], MaskVec.size()); 4003033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 4004033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // If the target supports VECTOR_SHUFFLE and this shuffle mask, use it. 40054352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (TLI.isOperationLegal(ISD::SCALAR_TO_VECTOR, Node->getValueType(0)) && 40064352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner isShuffleLegal(Node->getValueType(0), ShuffleMask)) { 4007bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Ops; 4008033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for(std::map<SDOperand,std::vector<unsigned> >::iterator I=Values.begin(), 4009033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng E = Values.end(); I != E; ++I) { 4010033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng SDOperand Op = DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), 4011033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng I->first); 4012033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng Ops.push_back(Op); 4013033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 4014033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng Ops.push_back(ShuffleMask); 4015033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 4016033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // Return shuffle(LoValVec, HiValVec, <0,1,0,1>) 4017bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner return DAG.getNode(ISD::VECTOR_SHUFFLE, Node->getValueType(0), 4018bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &Ops[0], Ops.size()); 4019033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 4020033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 4021ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4022ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Otherwise, we can't handle this case efficiently. Allocate a sufficiently 4023ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // aligned object on the stack, store each element into it, then load 4024ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // the result as a vector. 4025ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::ValueType VT = Node->getValueType(0); 4026ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Create the stack frame object. 4027ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand FIPtr = CreateStackTemporary(VT); 4028ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4029ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Emit a store of each element to the stack slot. 4030bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Stores; 4031ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner unsigned TypeByteSize = 4032ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::getSizeInBits(Node->getOperand(0).getValueType())/8; 4033ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Store (in the right endianness) the elements to memory. 4034ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 4035ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Ignore undef elements. 4036ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (Node->getOperand(i).getOpcode() == ISD::UNDEF) continue; 4037ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4038841c882f5dae8c953ea99b5824108313549cfaf8Chris Lattner unsigned Offset = TypeByteSize*i; 4039ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4040ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand Idx = DAG.getConstant(Offset, FIPtr.getValueType()); 4041ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Idx = DAG.getNode(ISD::ADD, FIPtr.getValueType(), FIPtr, Idx); 4042ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4043786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng Stores.push_back(DAG.getStore(DAG.getEntryNode(), Node->getOperand(i), Idx, 40448b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng NULL, 0)); 4045ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 4046ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4047ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand StoreChain; 4048ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (!Stores.empty()) // Not all undef elements? 4049bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner StoreChain = DAG.getNode(ISD::TokenFactor, MVT::Other, 4050bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &Stores[0], Stores.size()); 4051ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner else 4052ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner StoreChain = DAG.getEntryNode(); 4053ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4054ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Result is a load from the stack slot. 4055466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return DAG.getLoad(VT, StoreChain, FIPtr, NULL, 0); 4056ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner} 4057ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4058ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner/// CreateStackTemporary - Create a stack temporary, suitable for holding the 4059ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner/// specified value type. 4060ce87215131efcc68dcf7fca61055ad783a7aeb0eChris LattnerSDOperand SelectionDAGLegalize::CreateStackTemporary(MVT::ValueType VT) { 4061ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MachineFrameInfo *FrameInfo = DAG.getMachineFunction().getFrameInfo(); 4062ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner unsigned ByteSize = MVT::getSizeInBits(VT)/8; 406358092e35a3368e130438cbc793c8f9dce2e4fe0fChris Lattner const Type *Ty = MVT::getTypeForValueType(VT); 4064d2b7cec527a0efa552628378ebca7a8ca63bb45dChris Lattner unsigned StackAlign = (unsigned)TLI.getTargetData()->getPrefTypeAlignment(Ty); 406558092e35a3368e130438cbc793c8f9dce2e4fe0fChris Lattner int FrameIdx = FrameInfo->CreateStackObject(ByteSize, StackAlign); 4066ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner return DAG.getFrameIndex(FrameIdx, TLI.getPointerTy()); 4067ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner} 4068ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 40695b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattnervoid SelectionDAGLegalize::ExpandShiftParts(unsigned NodeOp, 40705b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand Op, SDOperand Amt, 40715b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand &Lo, SDOperand &Hi) { 40725b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner // Expand the subcomponents. 40735b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand LHSL, LHSH; 40745b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner ExpandOp(Op, LHSL, LHSH); 40755b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 4076bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand Ops[] = { LHSL, LHSH, Amt }; 4077f9f37fc52c444e34bad7846729ae5481a65e0a53Chris Lattner MVT::ValueType VT = LHSL.getValueType(); 4078f9f37fc52c444e34bad7846729ae5481a65e0a53Chris Lattner Lo = DAG.getNode(NodeOp, DAG.getNodeValueTypes(VT, VT), 2, Ops, 3); 40795b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner Hi = Lo.getValue(1); 40805b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner} 40815b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 40825b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 4083e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// ExpandShift - Try to find a clever way to expand this shift operation out to 4084e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// smaller elements. If we can't find a way that is more efficient than a 4085e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// libcall on this target, return false. Otherwise, return true with the 4086e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// low-parts expanded into Lo and Hi. 4087e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattnerbool SelectionDAGLegalize::ExpandShift(unsigned Opc, SDOperand Op,SDOperand Amt, 4088e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner SDOperand &Lo, SDOperand &Hi) { 4089e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner assert((Opc == ISD::SHL || Opc == ISD::SRA || Opc == ISD::SRL) && 4090e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner "This is not a shift!"); 4091f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman 4092e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner MVT::ValueType NVT = TLI.getTypeToTransformTo(Op.getValueType()); 4093f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman SDOperand ShAmt = LegalizeOp(Amt); 4094f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman MVT::ValueType ShTy = ShAmt.getValueType(); 4095f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman unsigned VTBits = MVT::getSizeInBits(Op.getValueType()); 4096f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman unsigned NVTBits = MVT::getSizeInBits(NVT); 4097f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman 4098f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman // Handle the case when Amt is an immediate. Other cases are currently broken 4099f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman // and are disabled. 4100f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (ConstantSDNode *CN = dyn_cast<ConstantSDNode>(Amt.Val)) { 4101f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman unsigned Cst = CN->getValue(); 4102f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman // Expand the incoming operand to be shifted, so that we have its parts 4103f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman SDOperand InL, InH; 4104f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman ExpandOp(Op, InL, InH); 4105f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman switch(Opc) { 4106f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SHL: 4107f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 4108f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 4109f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 4110f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 4111f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 4112f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SHL, NVT, InL, DAG.getConstant(Cst-NVTBits,ShTy)); 4113ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 4114ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = DAG.getConstant(0, NVT); 4115ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Hi = InL; 4116f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 4117f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::SHL, NVT, InL, DAG.getConstant(Cst, ShTy)); 4118f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::OR, NVT, 4119f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(Cst, ShTy)), 4120f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(NVTBits-Cst, ShTy))); 4121f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 4122f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 4123f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SRL: 4124f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 4125f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 4126f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 4127f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 4128f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::SRL, NVT, InH, DAG.getConstant(Cst-NVTBits,ShTy)); 4129f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 4130ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 4131ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = InH; 4132ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Hi = DAG.getConstant(0, NVT); 4133f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 4134f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::OR, NVT, 4135f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(Cst, ShTy)), 4136f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(NVTBits-Cst, ShTy))); 4137f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SRL, NVT, InH, DAG.getConstant(Cst, ShTy)); 4138f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 4139f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 4140f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SRA: 4141f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 4142edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = Lo = DAG.getNode(ISD::SRA, NVT, InH, 4143f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(NVTBits-1, ShTy)); 4144f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 4145edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Lo = DAG.getNode(ISD::SRA, NVT, InH, 4146f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(Cst-NVTBits, ShTy)); 4147edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = DAG.getNode(ISD::SRA, NVT, InH, 4148f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(NVTBits-1, ShTy)); 4149ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 4150ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = InH; 4151edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = DAG.getNode(ISD::SRA, NVT, InH, 4152ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner DAG.getConstant(NVTBits-1, ShTy)); 4153f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 4154f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::OR, NVT, 4155f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(Cst, ShTy)), 4156f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(NVTBits-Cst, ShTy))); 4157f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SRA, NVT, InH, DAG.getConstant(Cst, ShTy)); 4158f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 4159f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 4160f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 4161f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 41620ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 41630ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Okay, the shift amount isn't constant. However, if we can tell that it is 41640ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // >= 32 or < 32, we can still simplify it, without knowing the actual value. 41650ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner uint64_t Mask = NVTBits, KnownZero, KnownOne; 41660ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner TLI.ComputeMaskedBits(Amt, Mask, KnownZero, KnownOne); 41670ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 41680ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // If we know that the high bit of the shift amount is one, then we can do 41690ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // this as a couple of simple shifts. 41700ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner if (KnownOne & Mask) { 41710ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Mask out the high bit, which we know is set. 41720ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Amt = DAG.getNode(ISD::AND, Amt.getValueType(), Amt, 41730ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getConstant(NVTBits-1, Amt.getValueType())); 41740ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 41750ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Expand the incoming operand to be shifted, so that we have its parts 41760ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner SDOperand InL, InH; 41770ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner ExpandOp(Op, InL, InH); 41780ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner switch(Opc) { 41790ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SHL: 41800ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getConstant(0, NVT); // Low part is zero. 41810ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SHL, NVT, InL, Amt); // High part from Lo part. 41820ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 41830ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRL: 41840ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getConstant(0, NVT); // Hi part is zero. 41850ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::SRL, NVT, InH, Amt); // Lo part from Hi part. 41860ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 41870ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRA: 41880ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, InH, // Sign extend high part. 41890ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getConstant(NVTBits-1, Amt.getValueType())); 41900ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::SRA, NVT, InH, Amt); // Lo part from Hi part. 41910ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 41920ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 41930ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 41940ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 41950ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // If we know that the high bit of the shift amount is zero, then we can do 41960ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // this as a couple of simple shifts. 41970ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner if (KnownZero & Mask) { 41980ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Compute 32-amt. 41990ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner SDOperand Amt2 = DAG.getNode(ISD::SUB, Amt.getValueType(), 42000ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getConstant(NVTBits, Amt.getValueType()), 42010ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Amt); 42020ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 42030ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Expand the incoming operand to be shifted, so that we have its parts 42040ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner SDOperand InL, InH; 42050ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner ExpandOp(Op, InL, InH); 42060ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner switch(Opc) { 42070ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SHL: 42080ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::SHL, NVT, InL, Amt); 42090ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::OR, NVT, 42100ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SHL, NVT, InH, Amt), 42110ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SRL, NVT, InL, Amt2)); 42120ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 42130ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRL: 42140ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SRL, NVT, InH, Amt); 42150ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::OR, NVT, 42160ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SRL, NVT, InL, Amt), 42170ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SHL, NVT, InH, Amt2)); 42180ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 42190ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRA: 42200ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, InH, Amt); 42210ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::OR, NVT, 42220ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SRL, NVT, InL, Amt), 42230ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SHL, NVT, InH, Amt2)); 42240ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 42250ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 42260ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 42270ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 4228f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return false; 4229e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner} 423077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner 42319c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner 423277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// ExpandLibCall - Expand a node into a call to a libcall. If the result value 423377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// does not fit into a register, return the lo part and set the hi part to the 423477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// by-reg argument. If it does fit into a single register, return the result 423577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// and leave the Hi part unset. 423677e77a6aa0ab25a812947aed477220dd11220a18Chris LattnerSDOperand SelectionDAGLegalize::ExpandLibCall(const char *Name, SDNode *Node, 423747857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer bool isSigned, SDOperand &Hi) { 42386831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "Cannot overlap legalization of calls!"); 42396831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // The input chain to this libcall is the entry node of the function. 42406831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalizing the call will automatically add the previous call to the 42416831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // dependence. 42426831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand InChain = DAG.getEntryNode(); 42436831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 424477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner TargetLowering::ArgListTy Args; 424547857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TargetLowering::ArgListEntry Entry; 424677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 424777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner MVT::ValueType ArgVT = Node->getOperand(i).getValueType(); 424877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner const Type *ArgTy = MVT::getTypeForValueType(ArgVT); 424947857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Entry.Node = Node->getOperand(i); Entry.Ty = ArgTy; 4250d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov Entry.isSExt = isSigned; 425147857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Args.push_back(Entry); 425277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner } 425377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand Callee = DAG.getExternalSymbol(Name, TLI.getPointerTy()); 4254edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 42550d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner // Splice the libcall in wherever FindInputOutputChains tells us to. 425677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner const Type *RetTy = MVT::getTypeForValueType(Node->getValueType(0)); 42570d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner std::pair<SDOperand,SDOperand> CallInfo = 425847857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TLI.LowerCallTo(InChain, RetTy, isSigned, false, CallingConv::C, false, 4259adf6a965a321372c640845407195594835921eb4Chris Lattner Callee, Args, DAG); 42600d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner 42616831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalize the call sequence, starting with the chain. This will advance 42626831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // the LastCALLSEQ_END to the legalized version of the CALLSEQ_END node that 42636831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // was added by LowerCallTo (guaranteeing proper serialization of calls). 42646831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(CallInfo.second); 426599c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner SDOperand Result; 42660d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner switch (getTypeAction(CallInfo.first.getValueType())) { 426777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner default: assert(0 && "Unknown thing"); 426877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case Legal: 4269456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = CallInfo.first; 427099c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner break; 427177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case Expand: 427299c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner ExpandOp(CallInfo.first, Result, Hi); 427399c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner break; 427477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner } 427522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Result; 427622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 427722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 427822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 42794c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng/// ExpandIntToFP - Expand a [US]INT_TO_FP operation. 42804c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng/// 428122cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize:: 428222cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerExpandIntToFP(bool isSigned, MVT::ValueType DestTy, SDOperand Source) { 428322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(getTypeAction(Source.getValueType()) == Expand && 428422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner "This is not an expansion!"); 428522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(Source.getValueType() == MVT::i64 && "Only handle expand from i64!"); 428622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 428722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!isSigned) { 428822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(Source.getValueType() == MVT::i64 && 428922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner "This only works for 64-bit -> FP"); 429022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // The 64-bit value loaded will be incorrectly if the 'sign bit' of the 429122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // incoming integer is set. To handle this, we dynamically test to see if 429222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // it is set, and, if so, add a fudge factor. 429322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Lo, Hi; 429422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ExpandOp(Source, Lo, Hi); 429522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 429622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If this is unsigned, and not supported, first perform the conversion to 429722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // signed, then adjust the result if the sign bit is set. 429822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignedConv = ExpandIntToFP(true, DestTy, 429922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::BUILD_PAIR, Source.getValueType(), Lo, Hi)); 430022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 430122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignSet = DAG.getSetCC(TLI.getSetCCResultTy(), Hi, 430222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getConstant(0, Hi.getValueType()), 430322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ISD::SETLT); 430422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Zero = getIntPtrConstant(0), Four = getIntPtrConstant(4); 430522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CstOffset = DAG.getNode(ISD::SELECT, Zero.getValueType(), 430622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SignSet, Four, Zero); 430722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner uint64_t FF = 0x5f800000ULL; 430822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (TLI.isLittleEndian()) FF <<= 32; 430947857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer static Constant *FudgeFactor = ConstantInt::get(Type::Int64Ty, FF); 431022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 431122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CPIdx = DAG.getConstantPool(FudgeFactor, TLI.getPointerTy()); 431222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner CPIdx = DAG.getNode(ISD::ADD, TLI.getPointerTy(), CPIdx, CstOffset); 431322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand FudgeInReg; 431422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestTy == MVT::f32) 4315466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng FudgeInReg = DAG.getLoad(MVT::f32, DAG.getEntryNode(), CPIdx, NULL, 0); 431622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner else { 431722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(DestTy == MVT::f64 && "Unexpected conversion"); 43184c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng // FIXME: Avoid the extend by construction the right constantpool? 431922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner FudgeInReg = DAG.getExtLoad(ISD::EXTLOAD, MVT::f64, DAG.getEntryNode(), 4320466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng CPIdx, NULL, 0, MVT::f32); 432122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 43224c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng MVT::ValueType SCVT = SignedConv.getValueType(); 43234c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng if (SCVT != DestTy) { 43244c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng // Destination type needs to be expanded as well. The FADD now we are 43254c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng // constructing will be expanded into a libcall. 43264c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng if (MVT::getSizeInBits(SCVT) != MVT::getSizeInBits(DestTy)) { 43274c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng assert(SCVT == MVT::i32 && DestTy == MVT::f64); 43284c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng SignedConv = DAG.getNode(ISD::BUILD_PAIR, MVT::i64, 43294c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng SignedConv, SignedConv.getValue(1)); 43304c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng } 43314c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng SignedConv = DAG.getNode(ISD::BIT_CONVERT, DestTy, SignedConv); 43324c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng } 433322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::FADD, DestTy, SignedConv, FudgeInReg); 433422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 433522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 433622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Check to see if the target has a custom way to lower this. If so, use it. 433722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::SINT_TO_FP, Source.getValueType())) { 433822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "This action not implemented for this operation!"); 433922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 434022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Expand: 434122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // This case is handled below. 434222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: { 434322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand NV = TLI.LowerOperation(DAG.getNode(ISD::SINT_TO_FP, DestTy, 434422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Source), DAG); 434522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (NV.Val) 434622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return LegalizeOp(NV); 434722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // The target decided this was legal after all 434822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 434922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 435022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 435122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Expand the source, then glue it back together for the call. We must expand 435222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // the source in case it is shared (this pass of legalize must traverse it). 435322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SrcLo, SrcHi; 435422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ExpandOp(Source, SrcLo, SrcHi); 435522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Source = DAG.getNode(ISD::BUILD_PAIR, Source.getValueType(), SrcLo, SrcHi); 435622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 435756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC; 435822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestTy == MVT::f32) 435956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::SINTTOFP_I64_F32; 436022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner else { 436122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(DestTy == MVT::f64 && "Unknown fp value type!"); 436256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::SINTTOFP_I64_F64; 436322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 43646831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 43654c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng assert(TLI.getLibcallName(LC) && "Don't know how to expand this SINT_TO_FP!"); 43666831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Source = DAG.getNode(ISD::SINT_TO_FP, DestTy, Source); 43676831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand UnusedHiPart; 436856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng return ExpandLibCall(TLI.getLibcallName(LC), Source.Val, isSigned, 436956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng UnusedHiPart); 437022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 437122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 437222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandLegalINT_TO_FP - This function is responsible for legalizing a 437322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// INT_TO_FP operation of the specified operand when the target requests that 437422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we expand it. At this point, we know that the result and operand types are 437522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target. 437622cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandLegalINT_TO_FP(bool isSigned, 437722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Op0, 437822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType DestVT) { 437922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (Op0.getValueType() == MVT::i32) { 438022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // simple 32-bit [signed|unsigned] integer to float/double expansion 438122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 438258092e35a3368e130438cbc793c8f9dce2e4fe0fChris Lattner // get the stack frame index of a 8 byte buffer, pessimistically aligned 438322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MachineFunction &MF = DAG.getMachineFunction(); 438458092e35a3368e130438cbc793c8f9dce2e4fe0fChris Lattner const Type *F64Type = MVT::getTypeForValueType(MVT::f64); 438558092e35a3368e130438cbc793c8f9dce2e4fe0fChris Lattner unsigned StackAlign = 4386d2b7cec527a0efa552628378ebca7a8ca63bb45dChris Lattner (unsigned)TLI.getTargetData()->getPrefTypeAlignment(F64Type); 438758092e35a3368e130438cbc793c8f9dce2e4fe0fChris Lattner int SSFI = MF.getFrameInfo()->CreateStackObject(8, StackAlign); 438822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // get address of 8 byte buffer 438922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand StackSlot = DAG.getFrameIndex(SSFI, TLI.getPointerTy()); 439022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // word offset constant for Hi/Lo address computation 439122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand WordOff = DAG.getConstant(sizeof(int), TLI.getPointerTy()); 439222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // set up Hi and Lo (into buffer) address based on endian 4393408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner SDOperand Hi = StackSlot; 4394408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner SDOperand Lo = DAG.getNode(ISD::ADD, TLI.getPointerTy(), StackSlot,WordOff); 4395408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner if (TLI.isLittleEndian()) 4396408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner std::swap(Hi, Lo); 4397408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner 439822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // if signed map to unsigned space 439922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Op0Mapped; 440022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (isSigned) { 440122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // constant used to invert sign bit (signed to unsigned mapping) 440222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignBit = DAG.getConstant(0x80000000u, MVT::i32); 440322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op0Mapped = DAG.getNode(ISD::XOR, MVT::i32, Op0, SignBit); 440422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } else { 440522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op0Mapped = Op0; 440622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 440722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // store the lo of the constructed double - based on integer input 4408786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng SDOperand Store1 = DAG.getStore(DAG.getEntryNode(), 44098b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Op0Mapped, Lo, NULL, 0); 441022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // initial hi portion of constructed double 441122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand InitialHi = DAG.getConstant(0x43300000u, MVT::i32); 441222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // store the hi of the constructed double - biased exponent 44138b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDOperand Store2=DAG.getStore(Store1, InitialHi, Hi, NULL, 0); 441422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // load the constructed double 4415466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Load = DAG.getLoad(MVT::f64, Store2, StackSlot, NULL, 0); 441622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FP constant to bias correct the final result 441722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Bias = DAG.getConstantFP(isSigned ? 441822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner BitsToDouble(0x4330000080000000ULL) 441922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner : BitsToDouble(0x4330000000000000ULL), 442022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::f64); 442122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // subtract the bias 442222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Sub = DAG.getNode(ISD::FSUB, MVT::f64, Load, Bias); 442322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // final result 442422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Result; 442522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // handle final rounding 442622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestVT == MVT::f64) { 442722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // do nothing 442822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Result = Sub; 442922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } else { 443022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // if f32 then cast to f32 443122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Result = DAG.getNode(ISD::FP_ROUND, MVT::f32, Sub); 443222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 443322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Result; 443422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 443522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(!isSigned && "Legalize cannot Expand SINT_TO_FP for i64 yet"); 443622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp1 = DAG.getNode(ISD::SINT_TO_FP, DestVT, Op0); 443722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 443822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignSet = DAG.getSetCC(TLI.getSetCCResultTy(), Op0, 443922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getConstant(0, Op0.getValueType()), 444022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ISD::SETLT); 444122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Zero = getIntPtrConstant(0), Four = getIntPtrConstant(4); 444222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CstOffset = DAG.getNode(ISD::SELECT, Zero.getValueType(), 444322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SignSet, Four, Zero); 444422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 444522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the sign bit of the integer is set, the large number will be treated 444622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // as a negative number. To counteract this, the dynamic code adds an 444722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // offset depending on the data type. 444822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner uint64_t FF; 444922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (Op0.getValueType()) { 445022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Unsupported integer type!"); 445122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i8 : FF = 0x43800000ULL; break; // 2^8 (as a float) 445222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i16: FF = 0x47800000ULL; break; // 2^16 (as a float) 445322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i32: FF = 0x4F800000ULL; break; // 2^32 (as a float) 445422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i64: FF = 0x5F800000ULL; break; // 2^64 (as a float) 445522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 445622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (TLI.isLittleEndian()) FF <<= 32; 445747857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer static Constant *FudgeFactor = ConstantInt::get(Type::Int64Ty, FF); 445822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 445922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CPIdx = DAG.getConstantPool(FudgeFactor, TLI.getPointerTy()); 446022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner CPIdx = DAG.getNode(ISD::ADD, TLI.getPointerTy(), CPIdx, CstOffset); 446122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand FudgeInReg; 446222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestVT == MVT::f32) 4463466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng FudgeInReg = DAG.getLoad(MVT::f32, DAG.getEntryNode(), CPIdx, NULL, 0); 446422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner else { 446522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(DestVT == MVT::f64 && "Unexpected conversion"); 446622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner FudgeInReg = LegalizeOp(DAG.getExtLoad(ISD::EXTLOAD, MVT::f64, 446722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getEntryNode(), CPIdx, 4468466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng NULL, 0, MVT::f32)); 446922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 447022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 447122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::FADD, DestVT, Tmp1, FudgeInReg); 447222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 447322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 447422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// PromoteLegalINT_TO_FP - This function is responsible for legalizing a 447522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// *INT_TO_FP operation of the specified operand when the target requests that 447622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we promote it. At this point, we know that the result and operand types are 447722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target, and that there is a legal UINT_TO_FP or SINT_TO_FP 447822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// operation that takes a larger input. 447922cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::PromoteLegalINT_TO_FP(SDOperand LegalOp, 448022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType DestVT, 448122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner bool isSigned) { 448222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // First step, figure out the appropriate *INT_TO_FP operation to use. 448322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType NewInTy = LegalOp.getValueType(); 448422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 448522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner unsigned OpToUse = 0; 448622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 448722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Scan for the appropriate larger type to use. 448822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner while (1) { 448922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner NewInTy = (MVT::ValueType)(NewInTy+1); 449022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(MVT::isInteger(NewInTy) && "Ran out of possibilities!"); 449122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 449222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports SINT_TO_FP of this type, use it. 449322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::SINT_TO_FP, NewInTy)) { 449422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 449522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 449622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewInTy)) 449722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 449822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 449922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 450022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::SINT_TO_FP; 450122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 450222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 450322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 450422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (isSigned) continue; 450522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 450622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports UINT_TO_FP of this type, use it. 450722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::UINT_TO_FP, NewInTy)) { 450822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 450922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 451022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewInTy)) 451122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 451222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 451322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 451422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::UINT_TO_FP; 451522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 451622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 451722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 451822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 451922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Otherwise, try a larger type. 452022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 452122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 452222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Okay, we found the operation and type to use. Zero extend our input to the 452322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // desired type then run the operation on it. 452422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(OpToUse, DestVT, 452522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(isSigned ? ISD::SIGN_EXTEND : ISD::ZERO_EXTEND, 452622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner NewInTy, LegalOp)); 452777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner} 452877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner 452922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// PromoteLegalFP_TO_INT - This function is responsible for legalizing a 453022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// FP_TO_*INT operation of the specified operand when the target requests that 453122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we promote it. At this point, we know that the result and operand types are 453222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target, and that there is a legal FP_TO_UINT or FP_TO_SINT 453322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// operation that returns a larger result. 453422cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::PromoteLegalFP_TO_INT(SDOperand LegalOp, 453522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType DestVT, 453622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner bool isSigned) { 453722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // First step, figure out the appropriate FP_TO*INT operation to use. 453822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType NewOutTy = DestVT; 45399c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner 454022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner unsigned OpToUse = 0; 4541e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner 454222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Scan for the appropriate larger type to use. 454322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner while (1) { 454422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner NewOutTy = (MVT::ValueType)(NewOutTy+1); 454522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(MVT::isInteger(NewOutTy) && "Ran out of possibilities!"); 454666de05b606cf31f1f23ed0c4eb1f097738cd1506Chris Lattner 454722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports FP_TO_SINT returning this type, use it. 454822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::FP_TO_SINT, NewOutTy)) { 454922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 455022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 455122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewOutTy)) 455222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 455322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 455422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 455522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::FP_TO_SINT; 455622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 455722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 455822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 4559e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner 456022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports FP_TO_UINT of this type, use it. 456122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::FP_TO_UINT, NewOutTy)) { 456222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 456322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 456422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewOutTy)) 456522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 456622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 456722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 456822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::FP_TO_UINT; 456922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 4570e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner } 457122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 45720d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner 457322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Otherwise, try a larger type. 4574a88a260dbd874a3bdd3e47f4f15ab0d7c7803044Chris Lattner } 4575a88a260dbd874a3bdd3e47f4f15ab0d7c7803044Chris Lattner 457622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Okay, we found the operation and type to use. Truncate the result of the 457722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // extended FP_TO_*INT operation to the desired size. 457822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::TRUNCATE, DestVT, 457922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(OpToUse, NewOutTy, LegalOp)); 458022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 458113689e2009e71f7982d1313ed699e0e6a50157d0Chris Lattner 458222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandBSWAP - Open code the operations for BSWAP of the specified operation. 458322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// 458422cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandBSWAP(SDOperand Op) { 458522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 458622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType SHVT = TLI.getShiftAmountTy(); 458722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp1, Tmp2, Tmp3, Tmp4, Tmp5, Tmp6, Tmp7, Tmp8; 458822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (VT) { 458922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Unhandled Expand type in BSWAP!"); abort(); 459022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i16: 459122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 459222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 459322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp1, Tmp2); 459422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i32: 459522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(24, SHVT)); 459622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 459722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 459822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(24, SHVT)); 459922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::AND, VT, Tmp3, DAG.getConstant(0xFF0000, VT)); 460022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::AND, VT, Tmp2, DAG.getConstant(0xFF00, VT)); 460122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp3); 460222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::OR, VT, Tmp2, Tmp1); 460322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp4, Tmp2); 460422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i64: 460522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(56, SHVT)); 460622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp7 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(40, SHVT)); 460722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(24, SHVT)); 460822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp5 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 460922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 461022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(24, SHVT)); 461122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(40, SHVT)); 461222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(56, SHVT)); 461322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp7 = DAG.getNode(ISD::AND, VT, Tmp7, DAG.getConstant(255ULL<<48, VT)); 461422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::AND, VT, Tmp6, DAG.getConstant(255ULL<<40, VT)); 461522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp5 = DAG.getNode(ISD::AND, VT, Tmp5, DAG.getConstant(255ULL<<32, VT)); 461622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::AND, VT, Tmp4, DAG.getConstant(255ULL<<24, VT)); 461722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::AND, VT, Tmp3, DAG.getConstant(255ULL<<16, VT)); 461822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::AND, VT, Tmp2, DAG.getConstant(255ULL<<8 , VT)); 461922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::OR, VT, Tmp8, Tmp7); 462022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::OR, VT, Tmp6, Tmp5); 462122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp3); 462222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::OR, VT, Tmp2, Tmp1); 462322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::OR, VT, Tmp8, Tmp6); 462422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp2); 462522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp8, Tmp4); 46260d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner } 462777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner} 4628edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 462922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandBitCount - Expand the specified bitcount instruction into operations. 463022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// 463122cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandBitCount(unsigned Opc, SDOperand Op) { 463222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (Opc) { 463322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Cannot expand this yet!"); 463422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTPOP: { 463522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner static const uint64_t mask[6] = { 463622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x5555555555555555ULL, 0x3333333333333333ULL, 463722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x0F0F0F0F0F0F0F0FULL, 0x00FF00FF00FF00FFULL, 463822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x0000FFFF0000FFFFULL, 0x00000000FFFFFFFFULL 463922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner }; 464022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 464122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType ShVT = TLI.getShiftAmountTy(); 464222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner unsigned len = getSizeInBits(VT); 464322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner for (unsigned i = 0; (1U << i) <= (len / 2); ++i) { 464422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner //x = (x & mask[i][len/8]) + (x >> (1 << i) & mask[i][len/8]) 464522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp2 = DAG.getConstant(mask[i], VT); 464622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getConstant(1ULL << i, ShVT); 464722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::ADD, VT, DAG.getNode(ISD::AND, VT, Op, Tmp2), 464822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::AND, VT, 464922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::SRL, VT, Op, Tmp3),Tmp2)); 465022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 465122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Op; 465222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 465322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTLZ: { 465422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // for now, we do this: 465522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >> 1); 465622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >> 2); 465722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // ... 465822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >>16); 465922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >>32); // for 64-bit input 466022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // return popcount(~x); 466122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // 466222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // but see also: http://www.hackersdelight.org/HDcode/nlz.cc 466322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 466422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType ShVT = TLI.getShiftAmountTy(); 466522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner unsigned len = getSizeInBits(VT); 466622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner for (unsigned i = 0; (1U << i) <= (len / 2); ++i) { 466722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getConstant(1ULL << i, ShVT); 466822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::OR, VT, Op, DAG.getNode(ISD::SRL, VT, Op, Tmp3)); 466922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 467022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::XOR, VT, Op, DAG.getConstant(~0ULL, VT)); 467122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::CTPOP, VT, Op); 467222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 467322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTTZ: { 467422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // for now, we use: { return popcount(~x & (x - 1)); } 467522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // unless the target has ctlz but not ctpop, in which case we use: 467622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // { return 32 - nlz(~x & (x-1)); } 467722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // see also http://www.hackersdelight.org/HDcode/ntz.cc 467822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 467922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp2 = DAG.getConstant(~0ULL, VT); 468022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getNode(ISD::AND, VT, 468122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::XOR, VT, Op, Tmp2), 468222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::SUB, VT, Op, DAG.getConstant(1, VT))); 468322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If ISD::CTLZ is legal and CTPOP isn't, then do that instead. 468422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isOperationLegal(ISD::CTPOP, VT) && 468522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner TLI.isOperationLegal(ISD::CTLZ, VT)) 468622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::SUB, VT, 468722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getConstant(getSizeInBits(VT), VT), 468822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::CTLZ, VT, Tmp3)); 468922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::CTPOP, VT, Tmp3); 469022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 469122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 469222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 4693e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 46943e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// ExpandOp - Expand the specified SDOperand into its two component pieces 46953e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// Lo&Hi. Note that the Op MUST be an expanded type. As a result of this, the 46963e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// LegalizeNodes map is filled in for any results that are not expanded, the 46973e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// ExpandedNodes map is filled in for any results that are expanded, and the 46983e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// Lo/Hi values are returned. 46993e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnervoid SelectionDAGLegalize::ExpandOp(SDOperand Op, SDOperand &Lo, SDOperand &Hi){ 47003e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner MVT::ValueType VT = Op.getValueType(); 470171c42a0190300a8903aaea80467b88f15f327ea9Chris Lattner MVT::ValueType NVT = TLI.getTypeToTransformTo(VT); 47023e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDNode *Node = Op.Val; 47033e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(getTypeAction(VT) == Expand && "Not an expanded type!"); 47041a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng assert(((MVT::isInteger(NVT) && NVT < VT) || MVT::isFloatingPoint(VT) || 47051a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng VT == MVT::Vector) && 47063e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner "Cannot expand to FP value or to larger int value!"); 47073e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 47086fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner // See if we already expanded it. 470940030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner DenseMap<SDOperand, std::pair<SDOperand, SDOperand> >::iterator I 47106fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner = ExpandedNodes.find(Op); 47116fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner if (I != ExpandedNodes.end()) { 47126fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner Lo = I->second.first; 47136fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner Hi = I->second.second; 47146fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner return; 47153e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 47163e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 47173e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getOpcode()) { 4718348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner case ISD::CopyFromReg: 4719348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner assert(0 && "CopyFromReg must be legal!"); 4720348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner default: 4721e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 4722832171cb9724d2d31c8dfb73172e2be8f6dd13eeBill Wendling cerr << "NODE: "; Node->dump(); cerr << "\n"; 4723e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 47243e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(0 && "Do not know how to expand this operator!"); 47253e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner abort(); 4726fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: 4727aa975c1c4785a1d7930f2cd1026cb40ce54d21e4Evan Cheng NVT = TLI.getTypeToExpandTo(VT); 4728fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Lo = DAG.getNode(ISD::UNDEF, NVT); 4729fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Hi = DAG.getNode(ISD::UNDEF, NVT); 4730fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 47313e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::Constant: { 47323e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner uint64_t Cst = cast<ConstantSDNode>(Node)->getValue(); 47333e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Lo = DAG.getConstant(Cst, NVT); 47343e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getConstant(Cst >> MVT::getSizeInBits(NVT), NVT); 47353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 47363e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 4737004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng case ISD::ConstantFP: { 4738004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng ConstantFPSDNode *CFP = cast<ConstantFPSDNode>(Node); 4739279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng Lo = ExpandConstantFP(CFP, false, DAG, TLI); 47409f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng if (getTypeAction(Lo.getValueType()) == Expand) 47419f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng ExpandOp(Lo, Lo, Hi); 4742004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng break; 4743004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 4744d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner case ISD::BUILD_PAIR: 47458137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Return the operands. 47468137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = Node->getOperand(0); 47478137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = Node->getOperand(1); 4748d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner break; 474958f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner 475058f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner case ISD::SIGN_EXTEND_INREG: 475158f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 47524bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner // sext_inreg the low part if needed. 47534bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner Lo = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Lo, Node->getOperand(1)); 47544bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner 47554bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner // The high part gets the sign extension from the lo-part. This handles 47564bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner // things like sextinreg V:i64 from i8. 475758f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, Lo, 475858f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner DAG.getConstant(MVT::getSizeInBits(NVT)-1, 475958f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner TLI.getShiftAmountTy())); 476058f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner break; 4761d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner 4762d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: { 4763d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman ExpandOp(Node->getOperand(0), Lo, Hi); 4764d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman SDOperand TempLo = DAG.getNode(ISD::BSWAP, NVT, Hi); 4765d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Hi = DAG.getNode(ISD::BSWAP, NVT, Lo); 4766d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Lo = TempLo; 4767d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 4768d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman } 4769d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman 4770edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner case ISD::CTPOP: 4771edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 47729b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner Lo = DAG.getNode(ISD::ADD, NVT, // ctpop(HL) -> ctpop(H)+ctpop(L) 47739b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner DAG.getNode(ISD::CTPOP, NVT, Lo), 47749b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner DAG.getNode(ISD::CTPOP, NVT, Hi)); 4775edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner Hi = DAG.getConstant(0, NVT); 4776edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner break; 4777edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 477839a8f336305a492fc6d2625f39f08968185616d2Chris Lattner case ISD::CTLZ: { 477939a8f336305a492fc6d2625f39f08968185616d2Chris Lattner // ctlz (HL) -> ctlz(H) != 32 ? ctlz(H) : (ctlz(L)+32) 47803becf2026bec881a60cbbe0031d8c51f4d6d4e28Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 478139a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand BitsC = DAG.getConstant(MVT::getSizeInBits(NVT), NVT); 478239a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand HLZ = DAG.getNode(ISD::CTLZ, NVT, Hi); 47837cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner SDOperand TopNotZero = DAG.getSetCC(TLI.getSetCCResultTy(), HLZ, BitsC, 47847cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETNE); 478539a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand LowPart = DAG.getNode(ISD::CTLZ, NVT, Lo); 478639a8f336305a492fc6d2625f39f08968185616d2Chris Lattner LowPart = DAG.getNode(ISD::ADD, NVT, LowPart, BitsC); 478739a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 478839a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, TopNotZero, HLZ, LowPart); 478939a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Hi = DAG.getConstant(0, NVT); 479039a8f336305a492fc6d2625f39f08968185616d2Chris Lattner break; 479139a8f336305a492fc6d2625f39f08968185616d2Chris Lattner } 479239a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 479339a8f336305a492fc6d2625f39f08968185616d2Chris Lattner case ISD::CTTZ: { 479439a8f336305a492fc6d2625f39f08968185616d2Chris Lattner // cttz (HL) -> cttz(L) != 32 ? cttz(L) : (cttz(H)+32) 47953becf2026bec881a60cbbe0031d8c51f4d6d4e28Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 479639a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand BitsC = DAG.getConstant(MVT::getSizeInBits(NVT), NVT); 479739a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand LTZ = DAG.getNode(ISD::CTTZ, NVT, Lo); 47987cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner SDOperand BotNotZero = DAG.getSetCC(TLI.getSetCCResultTy(), LTZ, BitsC, 47997cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETNE); 480039a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand HiPart = DAG.getNode(ISD::CTTZ, NVT, Hi); 480139a8f336305a492fc6d2625f39f08968185616d2Chris Lattner HiPart = DAG.getNode(ISD::ADD, NVT, HiPart, BitsC); 480239a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 480339a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, BotNotZero, LTZ, HiPart); 480439a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Hi = DAG.getConstant(0, NVT); 480539a8f336305a492fc6d2625f39f08968185616d2Chris Lattner break; 480639a8f336305a492fc6d2625f39f08968185616d2Chris Lattner } 4807edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 4808acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAARG: { 48098137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Ch = Node->getOperand(0); // Legalize the chain. 48108137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Ptr = Node->getOperand(1); // Legalize the pointer. 4811acc398c195a697795bff3245943d104eb19192b9Nate Begeman Lo = DAG.getVAArg(NVT, Ch, Ptr, Node->getOperand(2)); 4812acc398c195a697795bff3245943d104eb19192b9Nate Begeman Hi = DAG.getVAArg(NVT, Lo.getValue(1), Ptr, Node->getOperand(2)); 4813acc398c195a697795bff3245943d104eb19192b9Nate Begeman 4814acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Remember that we legalized the chain. 48158137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = LegalizeOp(Hi); 4816acc398c195a697795bff3245943d104eb19192b9Nate Begeman AddLegalizedOperand(Op.getValue(1), Hi.getValue(1)); 4817acc398c195a697795bff3245943d104eb19192b9Nate Begeman if (!TLI.isLittleEndian()) 4818acc398c195a697795bff3245943d104eb19192b9Nate Begeman std::swap(Lo, Hi); 4819acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 4820acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 4821acc398c195a697795bff3245943d104eb19192b9Nate Begeman 48223e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::LOAD: { 4823466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LoadSDNode *LD = cast<LoadSDNode>(Node); 4824466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Ch = LD->getChain(); // Legalize the chain. 4825466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Ptr = LD->getBasePtr(); // Legalize the pointer. 4826466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ISD::LoadExtType ExtType = LD->getExtensionType(); 4827466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 4828466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::NON_EXTLOAD) { 4829fea997aac5773e936754de5436029c2a4fa1e930Chris Lattner Lo = DAG.getLoad(NVT, Ch, Ptr, LD->getSrcValue(),LD->getSrcValueOffset()); 4830004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng if (VT == MVT::f32 || VT == MVT::f64) { 4831004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // f32->i32 or f64->i64 one to one expansion. 4832004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // Remember that we legalized the chain. 4833004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Lo.getValue(1))); 48349f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng // Recursively expand the new load. 48359f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng if (getTypeAction(NVT) == Expand) 48369f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng ExpandOp(Lo, Lo, Hi); 4837004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng break; 4838004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 4839466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 4840466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Increment the pointer to the other half. 4841466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng unsigned IncrementSize = MVT::getSizeInBits(Lo.getValueType())/8; 4842466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 4843466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng getIntPtrConstant(IncrementSize)); 4844466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // FIXME: This creates a bogus srcvalue! 4845fea997aac5773e936754de5436029c2a4fa1e930Chris Lattner Hi = DAG.getLoad(NVT, Ch, Ptr, LD->getSrcValue(),LD->getSrcValueOffset()); 4846466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 4847466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Build a factor node to remember that this load is independent of the 4848466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // other one. 4849466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand TF = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 4850466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi.getValue(1)); 4851466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 4852466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Remember that we legalized the chain. 4853466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(Op.getValue(1), LegalizeOp(TF)); 4854466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (!TLI.isLittleEndian()) 4855466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng std::swap(Lo, Hi); 4856466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else { 48572e49f090f9656af7d5ed4d5c4e9fa26af59c7233Evan Cheng MVT::ValueType EVT = LD->getLoadedVT(); 4858548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng 4859548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng if (VT == MVT::f64 && EVT == MVT::f32) { 4860548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng // f64 = EXTLOAD f32 should expand to LOAD, FP_EXTEND 4861548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng SDOperand Load = DAG.getLoad(EVT, Ch, Ptr, LD->getSrcValue(), 4862548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng LD->getSrcValueOffset()); 4863548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng // Remember that we legalized the chain. 4864548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Load.getValue(1))); 4865548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng ExpandOp(DAG.getNode(ISD::FP_EXTEND, VT, Load), Lo, Hi); 4866548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng break; 4867548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng } 4868466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 4869466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (EVT == NVT) 4870466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Lo = DAG.getLoad(NVT, Ch, Ptr, LD->getSrcValue(), 4871466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LD->getSrcValueOffset()); 4872466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng else 4873466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Lo = DAG.getExtLoad(ExtType, NVT, Ch, Ptr, LD->getSrcValue(), 4874466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LD->getSrcValueOffset(), EVT); 4875466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 4876466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Remember that we legalized the chain. 4877466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Lo.getValue(1))); 4878466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 4879466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::SEXTLOAD) { 4880466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // The high part is obtained by SRA'ing all but one of the bits of the 4881466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // lo part. 4882466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng unsigned LoSize = MVT::getSizeInBits(Lo.getValueType()); 4883466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi = DAG.getNode(ISD::SRA, NVT, Lo, 4884466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng DAG.getConstant(LoSize-1, TLI.getShiftAmountTy())); 4885466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else if (ExtType == ISD::ZEXTLOAD) { 4886466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // The high part is just a zero. 4887466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi = DAG.getConstant(0, NVT); 4888466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else /* if (ExtType == ISD::EXTLOAD) */ { 4889466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // The high part is undefined. 4890466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi = DAG.getNode(ISD::UNDEF, NVT); 4891466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 4892466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 48933e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 48943e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 48953e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::AND: 48963e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::OR: 48973e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::XOR: { // Simple logical operators -> two trivial pieces. 48983e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand LL, LH, RL, RH; 48993e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(0), LL, LH); 49003e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(1), RL, RH); 49013e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Lo = DAG.getNode(Node->getOpcode(), NVT, LL, RL); 49023e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getNode(Node->getOpcode(), NVT, LH, RH); 49033e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 49043e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 49053e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SELECT: { 4906456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand LL, LH, RL, RH; 49073e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(1), LL, LH); 49083e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(2), RL, RH); 490919103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (getTypeAction(NVT) == Expand) 491019103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng NVT = TLI.getTypeToExpandTo(NVT); 4911456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), LL, RL); 491219103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (VT != MVT::f32) 491319103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng Hi = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), LH, RH); 49143e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 49153e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 49169373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case ISD::SELECT_CC: { 49179373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman SDOperand TL, TH, FL, FH; 49189373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman ExpandOp(Node->getOperand(2), TL, TH); 49199373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman ExpandOp(Node->getOperand(3), FL, FH); 492019103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (getTypeAction(NVT) == Expand) 492119103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng NVT = TLI.getTypeToExpandTo(NVT); 49229373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Lo = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 49239373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Node->getOperand(1), TL, FL, Node->getOperand(4)); 492419103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (VT != MVT::f32) 492519103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng Hi = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 492619103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng Node->getOperand(1), TH, FH, Node->getOperand(4)); 49279373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 49289373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 49298137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::ANY_EXTEND: 493013c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner // The low part is any extension of the input (which degenerates to a copy). 49318137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::ANY_EXTEND, NVT, Node->getOperand(0)); 493213c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner // The high part is undefined. 493313c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Hi = DAG.getNode(ISD::UNDEF, NVT); 493413c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner break; 49353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SIGN_EXTEND: { 49363e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The low part is just a sign extension of the input (which degenerates to 49373e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // a copy). 49388137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::SIGN_EXTEND, NVT, Node->getOperand(0)); 4939edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 49403e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The high part is obtained by SRA'ing all but one of the bits of the lo 49413e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // part. 49422dad454af674cb41a14a85ad6ce5c85c43959acdChris Lattner unsigned LoSize = MVT::getSizeInBits(Lo.getValueType()); 49438137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, Lo, 49448137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner DAG.getConstant(LoSize-1, TLI.getShiftAmountTy())); 49453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 49463e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 49478137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::ZERO_EXTEND: 49483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The low part is just a zero extension of the input (which degenerates to 49493e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // a copy). 49508137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::ZERO_EXTEND, NVT, Node->getOperand(0)); 4951edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 49523e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The high part is just a zero. 49533e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getConstant(0, NVT); 49543e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 495535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 49564c948eb373779718e5be36d7674382b52114bf65Chris Lattner case ISD::TRUNCATE: { 49574c948eb373779718e5be36d7674382b52114bf65Chris Lattner // The input value must be larger than this value. Expand *it*. 49584c948eb373779718e5be36d7674382b52114bf65Chris Lattner SDOperand NewLo; 49594c948eb373779718e5be36d7674382b52114bf65Chris Lattner ExpandOp(Node->getOperand(0), NewLo, Hi); 49604c948eb373779718e5be36d7674382b52114bf65Chris Lattner 49614c948eb373779718e5be36d7674382b52114bf65Chris Lattner // The low part is now either the right size, or it is closer. If not the 49624c948eb373779718e5be36d7674382b52114bf65Chris Lattner // right size, make an illegal truncate so we recursively expand it. 49634c948eb373779718e5be36d7674382b52114bf65Chris Lattner if (NewLo.getValueType() != Node->getValueType(0)) 49644c948eb373779718e5be36d7674382b52114bf65Chris Lattner NewLo = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), NewLo); 49654c948eb373779718e5be36d7674382b52114bf65Chris Lattner ExpandOp(NewLo, Lo, Hi); 49664c948eb373779718e5be36d7674382b52114bf65Chris Lattner break; 49674c948eb373779718e5be36d7674382b52114bf65Chris Lattner } 49684c948eb373779718e5be36d7674382b52114bf65Chris Lattner 496935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: { 4970f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner SDOperand Tmp; 4971f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner if (TLI.getOperationAction(ISD::BIT_CONVERT, VT) == TargetLowering::Custom){ 4972f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner // If the target wants to, allow it to lower this itself. 4973f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 4974f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 4975f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner case Legal: Tmp = LegalizeOp(Node->getOperand(0)); break; 4976f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner case Promote: Tmp = PromoteOp (Node->getOperand(0)); break; 4977f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner } 4978f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner Tmp = TLI.LowerOperation(DAG.getNode(ISD::BIT_CONVERT, VT, Tmp), DAG); 4979f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner } 4980f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner 49811a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng // f32 / f64 must be expanded to i32 / i64. 498213acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (VT == MVT::f32 || VT == MVT::f64) { 498313acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Lo = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 498419103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (getTypeAction(NVT) == Expand) 498519103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng ExpandOp(Lo, Lo, Hi); 49867b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng break; 49877b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng } 49887b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng 49897b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng // If source operand will be expanded to the same type as VT, i.e. 49907b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng // i64 <- f64, i32 <- f32, expand the source operand instead. 49917b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng MVT::ValueType VT0 = Node->getOperand(0).getValueType(); 49927b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng if (getTypeAction(VT0) == Expand && TLI.getTypeToTransformTo(VT0) == VT) { 49937b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng ExpandOp(Node->getOperand(0), Lo, Hi); 49941a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 49951a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng } 49961a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng 4997f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner // Turn this into a load/store pair by default. 4998f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner if (Tmp.Val == 0) 499913acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Tmp = ExpandBIT_CONVERT(VT, Node->getOperand(0)); 5000f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner 500135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner ExpandOp(Tmp, Lo, Hi); 500235481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 500335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 5004f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 50058137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::READCYCLECOUNTER: 5006308575be66ec3870d27b19df044fda18448feb41Chris Lattner assert(TLI.getOperationAction(ISD::READCYCLECOUNTER, VT) == 5007308575be66ec3870d27b19df044fda18448feb41Chris Lattner TargetLowering::Custom && 5008308575be66ec3870d27b19df044fda18448feb41Chris Lattner "Must custom expand ReadCycleCounter"); 50098137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = TLI.LowerOperation(Op, DAG); 50108137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner assert(Lo.Val && "Node must be custom expanded!"); 50118137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = Lo.getValue(1); 5012308575be66ec3870d27b19df044fda18448feb41Chris Lattner AddLegalizedOperand(SDOperand(Node, 1), // Remember we legalized the chain. 50138137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner LegalizeOp(Lo.getValue(2))); 5014f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth break; 5015f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 50164e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner // These operators cannot be expanded directly, emit them as calls to 50174e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner // library functions. 501856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FP_TO_SINT: { 501980a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner if (TLI.getOperationAction(ISD::FP_TO_SINT, VT) == TargetLowering::Custom) { 5020f20d183c2268553c738fefb014959ea924dd0555Chris Lattner SDOperand Op; 5021f20d183c2268553c738fefb014959ea924dd0555Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 5022f20d183c2268553c738fefb014959ea924dd0555Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 50238137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Legal: Op = LegalizeOp(Node->getOperand(0)); break; 50248137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Promote: Op = PromoteOp (Node->getOperand(0)); break; 5025f20d183c2268553c738fefb014959ea924dd0555Chris Lattner } 5026d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 5027f20d183c2268553c738fefb014959ea924dd0555Chris Lattner Op = TLI.LowerOperation(DAG.getNode(ISD::FP_TO_SINT, VT, Op), DAG); 5028f20d183c2268553c738fefb014959ea924dd0555Chris Lattner 502980a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner // Now that the custom expander is done, expand the result, which is still 503080a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner // VT. 503107dffd6af673c73352150583150b242a93694f00Chris Lattner if (Op.Val) { 503207dffd6af673c73352150583150b242a93694f00Chris Lattner ExpandOp(Op, Lo, Hi); 503307dffd6af673c73352150583150b242a93694f00Chris Lattner break; 503407dffd6af673c73352150583150b242a93694f00Chris Lattner } 503580a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner } 5036d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 503756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC; 50384e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner if (Node->getOperand(0).getValueType() == MVT::f32) 503956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::FPTOSINT_F32_I64; 50404e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner else 504156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::FPTOSINT_F64_I64; 504256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(LC), Node, 504356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Hi); 50444e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner break; 504556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng } 5046d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 504756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FP_TO_UINT: { 504880a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner if (TLI.getOperationAction(ISD::FP_TO_UINT, VT) == TargetLowering::Custom) { 50498137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op; 50508137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 50518137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 50528137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Legal: Op = LegalizeOp(Node->getOperand(0)); break; 50538137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Promote: Op = PromoteOp (Node->getOperand(0)); break; 50548137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 50558137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 50568137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Op = TLI.LowerOperation(DAG.getNode(ISD::FP_TO_UINT, VT, Op), DAG); 50578137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 50588137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Now that the custom expander is done, expand the result. 505907dffd6af673c73352150583150b242a93694f00Chris Lattner if (Op.Val) { 506007dffd6af673c73352150583150b242a93694f00Chris Lattner ExpandOp(Op, Lo, Hi); 506107dffd6af673c73352150583150b242a93694f00Chris Lattner break; 506207dffd6af673c73352150583150b242a93694f00Chris Lattner } 506380a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner } 5064d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 506556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC; 50664e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner if (Node->getOperand(0).getValueType() == MVT::f32) 506756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::FPTOUINT_F32_I64; 50684e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner else 506956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::FPTOUINT_F64_I64; 507056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(LC), Node, 507156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Hi); 50724e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner break; 507356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng } 50744e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner 507505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SHL: { 507650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 5077348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 507850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SHL, VT) == TargetLowering::Custom) { 50798137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SHL, VT, Node->getOperand(0), ShiftAmt); 508050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 508150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 508250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 508350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 508450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 508550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 508650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 508750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 508850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 508979980b07dab50da1a8f572f9504674bfa853d484Chris Lattner // If ADDC/ADDE are supported and if the shift amount is a constant 1, emit 509079980b07dab50da1a8f572f9504674bfa853d484Chris Lattner // this X << 1 as X+X. 509179980b07dab50da1a8f572f9504674bfa853d484Chris Lattner if (ConstantSDNode *ShAmt = dyn_cast<ConstantSDNode>(ShiftAmt)) { 509279980b07dab50da1a8f572f9504674bfa853d484Chris Lattner if (ShAmt->getValue() == 1 && TLI.isOperationLegal(ISD::ADDC, NVT) && 509379980b07dab50da1a8f572f9504674bfa853d484Chris Lattner TLI.isOperationLegal(ISD::ADDE, NVT)) { 509479980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDOperand LoOps[2], HiOps[3]; 509579980b07dab50da1a8f572f9504674bfa853d484Chris Lattner ExpandOp(Node->getOperand(0), LoOps[0], HiOps[0]); 509679980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDVTList VTList = DAG.getVTList(LoOps[0].getValueType(), MVT::Flag); 509779980b07dab50da1a8f572f9504674bfa853d484Chris Lattner LoOps[1] = LoOps[0]; 509879980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Lo = DAG.getNode(ISD::ADDC, VTList, LoOps, 2); 509979980b07dab50da1a8f572f9504674bfa853d484Chris Lattner 510079980b07dab50da1a8f572f9504674bfa853d484Chris Lattner HiOps[1] = HiOps[0]; 510179980b07dab50da1a8f572f9504674bfa853d484Chris Lattner HiOps[2] = Lo.getValue(1); 510279980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Hi = DAG.getNode(ISD::ADDE, VTList, HiOps, 3); 510379980b07dab50da1a8f572f9504674bfa853d484Chris Lattner break; 510479980b07dab50da1a8f572f9504674bfa853d484Chris Lattner } 510579980b07dab50da1a8f572f9504674bfa853d484Chris Lattner } 510679980b07dab50da1a8f572f9504674bfa853d484Chris Lattner 5107e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 5108348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SHL, Node->getOperand(0), ShiftAmt, Lo, Hi)) 5109e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 51104759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 51114759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SHL_PARTS, use it. 511205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 511305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SHL_PARTS, NVT); 511405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 511505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 5116348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SHL_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 51174759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 51184759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 51194759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 5120e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 512156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SHL_I64), Node, 512256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*left shift=unsigned*/, Hi); 5123e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 512405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 5125e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 512605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SRA: { 512750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 5128348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 512950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SRA, VT) == TargetLowering::Custom) { 51308137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SRA, VT, Node->getOperand(0), ShiftAmt); 513150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 513250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 513350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 513450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 513550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 513650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 513750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 513850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 513950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 5140e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 5141348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SRA, Node->getOperand(0), ShiftAmt, Lo, Hi)) 5142e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 51434759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 51444759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SRA_PARTS, use it. 514505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 514605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SRA_PARTS, NVT); 514705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 514805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 5149348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SRA_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 51504759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 51514759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 51524759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 5153e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 515456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SRA_I64), Node, 515556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng true/*ashr is signed*/, Hi); 5156e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 515705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 515805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 515905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SRL: { 516050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 5161348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 516250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SRL, VT) == TargetLowering::Custom) { 51638137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SRL, VT, Node->getOperand(0), ShiftAmt); 516450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 516550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 516650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 516750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 516850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 516950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 517050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 517150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 517250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 5173e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 5174348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SRL, Node->getOperand(0), ShiftAmt, Lo, Hi)) 5175e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 51764759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 51774759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SRL_PARTS, use it. 517805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 517905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SRL_PARTS, NVT); 518005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 518105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 5182348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SRL_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 51834759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 51844759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 51854759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 5186e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 518756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SRL_I64), Node, 518856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*lshr is unsigned*/, Hi); 5189e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 519005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 5191e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 5192edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman case ISD::ADD: 51938137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::SUB: { 51948137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // If the target wants to custom expand this, let them. 51958137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner if (TLI.getOperationAction(Node->getOpcode(), VT) == 51968137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner TargetLowering::Custom) { 51978137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Op = TLI.LowerOperation(Op, DAG); 51988137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner if (Op.Val) { 51998137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Op, Lo, Hi); 52008137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner break; 52018137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 52028137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 52038137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 52048137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Expand the subcomponents. 52058137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand LHSL, LHSH, RHSL, RHSH; 52068137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Node->getOperand(0), LHSL, LHSH); 52078137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Node->getOperand(1), RHSL, RHSH); 520879980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); 520979980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDOperand LoOps[2], HiOps[3]; 5210bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner LoOps[0] = LHSL; 5211bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner LoOps[1] = RHSL; 5212bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[0] = LHSH; 5213bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[1] = RHSH; 5214551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman if (Node->getOpcode() == ISD::ADD) { 521579980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Lo = DAG.getNode(ISD::ADDC, VTList, LoOps, 2); 5216bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[2] = Lo.getValue(1); 521779980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Hi = DAG.getNode(ISD::ADDE, VTList, HiOps, 3); 5218551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman } else { 521979980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Lo = DAG.getNode(ISD::SUBC, VTList, LoOps, 2); 5220bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[2] = Lo.getValue(1); 522179980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Hi = DAG.getNode(ISD::SUBE, VTList, HiOps, 3); 5222551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman } 522384f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner break; 52248137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 5225b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 5226b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::ADDC: 5227b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::SUBC: { 5228b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Expand the subcomponents. 5229b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand LHSL, LHSH, RHSL, RHSH; 5230b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(0), LHSL, LHSH); 5231b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(1), RHSL, RHSH); 5232b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); 5233b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand LoOps[2] = { LHSL, RHSL }; 5234b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand HiOps[3] = { LHSH, RHSH }; 5235b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 5236b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner if (Node->getOpcode() == ISD::ADDC) { 5237b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Lo = DAG.getNode(ISD::ADDC, VTList, LoOps, 2); 5238b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner HiOps[2] = Lo.getValue(1); 5239b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Hi = DAG.getNode(ISD::ADDE, VTList, HiOps, 3); 5240b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } else { 5241b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Lo = DAG.getNode(ISD::SUBC, VTList, LoOps, 2); 5242b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner HiOps[2] = Lo.getValue(1); 5243b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Hi = DAG.getNode(ISD::SUBE, VTList, HiOps, 3); 5244b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } 5245b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Remember that we legalized the flag. 5246b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Hi.getValue(1))); 5247b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner break; 5248b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } 5249b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::ADDE: 5250b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::SUBE: { 5251b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Expand the subcomponents. 5252b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand LHSL, LHSH, RHSL, RHSH; 5253b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(0), LHSL, LHSH); 5254b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(1), RHSL, RHSH); 5255b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); 5256b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand LoOps[3] = { LHSL, RHSL, Node->getOperand(2) }; 5257b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand HiOps[3] = { LHSH, RHSH }; 5258b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 5259b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Lo = DAG.getNode(Node->getOpcode(), VTList, LoOps, 3); 5260b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner HiOps[2] = Lo.getValue(1); 5261b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Hi = DAG.getNode(Node->getOpcode(), VTList, HiOps, 3); 5262b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 5263b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Remember that we legalized the flag. 5264b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Hi.getValue(1))); 5265b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner break; 5266b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } 5267c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MUL: { 52687d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner // If the target wants to custom expand this, let them. 52697d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner if (TLI.getOperationAction(ISD::MUL, VT) == TargetLowering::Custom) { 52708829dc88a8637fe588e299d96de394afc3ecc528Chris Lattner SDOperand New = TLI.LowerOperation(Op, DAG); 52718829dc88a8637fe588e299d96de394afc3ecc528Chris Lattner if (New.Val) { 52728829dc88a8637fe588e299d96de394afc3ecc528Chris Lattner ExpandOp(New, Lo, Hi); 52737d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner break; 52747d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner } 52757d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner } 52767d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner 52773f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng bool HasMULHS = TLI.isOperationLegal(ISD::MULHS, NVT); 52783f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng bool HasMULHU = TLI.isOperationLegal(ISD::MULHU, NVT); 52793f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng if (HasMULHS || HasMULHU) { 5280c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman SDOperand LL, LH, RL, RH; 5281c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman ExpandOp(Node->getOperand(0), LL, LH); 5282c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman ExpandOp(Node->getOperand(1), RL, RH); 528356eb86806d5d178d42108f17d11098b3e640b996Nate Begeman unsigned SH = MVT::getSizeInBits(RH.getValueType())-1; 52842cbba8934745fe30662f2d5a59d03545ad5212c5Nate Begeman // FIXME: Move this to the dag combiner. 528556eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // MULHS implicitly sign extends its inputs. Check to see if ExpandOp 528656eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // extended the sign bit of the low half through the upper half, and if so 528756eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // emit a MULHS instead of the alternate sequence that is valid for any 528856eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // i64 x i64 multiply. 52893f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng if (HasMULHS && 529056eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // is RH an extension of the sign bit of RL? 529156eb86806d5d178d42108f17d11098b3e640b996Nate Begeman RH.getOpcode() == ISD::SRA && RH.getOperand(0) == RL && 529256eb86806d5d178d42108f17d11098b3e640b996Nate Begeman RH.getOperand(1).getOpcode() == ISD::Constant && 529356eb86806d5d178d42108f17d11098b3e640b996Nate Begeman cast<ConstantSDNode>(RH.getOperand(1))->getValue() == SH && 529456eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // is LH an extension of the sign bit of LL? 529556eb86806d5d178d42108f17d11098b3e640b996Nate Begeman LH.getOpcode() == ISD::SRA && LH.getOperand(0) == LL && 529656eb86806d5d178d42108f17d11098b3e640b996Nate Begeman LH.getOperand(1).getOpcode() == ISD::Constant && 529756eb86806d5d178d42108f17d11098b3e640b996Nate Begeman cast<ConstantSDNode>(LH.getOperand(1))->getValue() == SH) { 5298a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner // Low part: 5299a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner Lo = DAG.getNode(ISD::MUL, NVT, LL, RL); 5300a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner // High part: 530156eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::MULHS, NVT, LL, RL); 5302a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner break; 53033f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng } else if (HasMULHU) { 5304a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner // Low part: 5305a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner Lo = DAG.getNode(ISD::MUL, NVT, LL, RL); 5306a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner 5307a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner // High part: 530856eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::MULHU, NVT, LL, RL); 530956eb86806d5d178d42108f17d11098b3e640b996Nate Begeman RH = DAG.getNode(ISD::MUL, NVT, LL, RH); 531056eb86806d5d178d42108f17d11098b3e640b996Nate Begeman LH = DAG.getNode(ISD::MUL, NVT, LH, RL); 531156eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::ADD, NVT, Hi, RH); 531256eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::ADD, NVT, Hi, LH); 5313a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner break; 531456eb86806d5d178d42108f17d11098b3e640b996Nate Begeman } 5315c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman } 53163f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng 531756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::MUL_I64), Node, 531856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Hi); 5319c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman break; 5320c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman } 532156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::SDIV: 532256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SDIV_I64), Node, true, Hi); 532356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 532456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::UDIV: 532556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::UDIV_I64), Node, true, Hi); 532656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 532756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::SREM: 532856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SREM_I64), Node, true, Hi); 532956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 533056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::UREM: 533156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::UREM_I64), Node, true, Hi); 533256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 53335c9ce1893a4bee65bc05c7c48f11734f55405692Evan Cheng 53341a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FADD: 533556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName((VT == MVT::f32) 533656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::ADD_F32 : RTLIB::ADD_F64), 533756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 53381a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 53391a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FSUB: 534056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName((VT == MVT::f32) 534156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::SUB_F32 : RTLIB::SUB_F64), 534256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 53431a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 53441a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FMUL: 534556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName((VT == MVT::f32) 534656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::MUL_F32 : RTLIB::MUL_F64), 534756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 53481a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 53491a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FDIV: 535056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName((VT == MVT::f32) 535156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::DIV_F32 : RTLIB::DIV_F64), 535256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 53531a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 53541a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FP_EXTEND: 535556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::FPEXT_F32_F64), Node, true,Hi); 53561a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 53571a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FP_ROUND: 535856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::FPROUND_F64_F32),Node,true,Hi); 53591a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 536098ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng case ISD::FSQRT: 536198ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng case ISD::FSIN: 536298ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng case ISD::FCOS: { 536356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 536498ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng switch(Node->getOpcode()) { 536556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSQRT: 536656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::f32) ? RTLIB::SQRT_F32 : RTLIB::SQRT_F64; 536756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 536856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSIN: 536956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::f32) ? RTLIB::SIN_F32 : RTLIB::SIN_F64; 537056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 537156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FCOS: 537256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::f32) ? RTLIB::COS_F32 : RTLIB::COS_F64; 537356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 537498ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng default: assert(0 && "Unreachable!"); 537598ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng } 537656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(LC), Node, false, Hi); 537798ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng break; 537898ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng } 5379966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng case ISD::FABS: { 5380966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng SDOperand Mask = (VT == MVT::f64) 5381966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ? DAG.getConstantFP(BitsToDouble(~(1ULL << 63)), VT) 5382966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng : DAG.getConstantFP(BitsToFloat(~(1U << 31)), VT); 5383966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Mask = DAG.getNode(ISD::BIT_CONVERT, NVT, Mask); 5384966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 5385966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::AND, NVT, Lo, Mask); 5386966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng if (getTypeAction(NVT) == Expand) 5387966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ExpandOp(Lo, Lo, Hi); 5388966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng break; 5389966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng } 5390966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng case ISD::FNEG: { 5391966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng SDOperand Mask = (VT == MVT::f64) 5392966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ? DAG.getConstantFP(BitsToDouble(1ULL << 63), VT) 5393966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng : DAG.getConstantFP(BitsToFloat(1U << 31), VT); 5394966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Mask = DAG.getNode(ISD::BIT_CONVERT, NVT, Mask); 5395966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 5396966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::XOR, NVT, Lo, Mask); 5397966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng if (getTypeAction(NVT) == Expand) 5398966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ExpandOp(Lo, Lo, Hi); 5399966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng break; 5400966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng } 5401912095becac923ff614d7b07728eb345ada67765Evan Cheng case ISD::FCOPYSIGN: { 5402912095becac923ff614d7b07728eb345ada67765Evan Cheng Lo = ExpandFCOPYSIGNToBitwiseOps(Node, NVT, DAG, TLI); 5403912095becac923ff614d7b07728eb345ada67765Evan Cheng if (getTypeAction(NVT) == Expand) 5404912095becac923ff614d7b07728eb345ada67765Evan Cheng ExpandOp(Lo, Lo, Hi); 5405912095becac923ff614d7b07728eb345ada67765Evan Cheng break; 5406912095becac923ff614d7b07728eb345ada67765Evan Cheng } 54077df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng case ISD::SINT_TO_FP: 54087df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng case ISD::UINT_TO_FP: { 54097df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng bool isSigned = Node->getOpcode() == ISD::SINT_TO_FP; 54107df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng MVT::ValueType SrcVT = Node->getOperand(0).getValueType(); 541156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC; 54127df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng if (Node->getOperand(0).getValueType() == MVT::i64) { 54137df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng if (VT == MVT::f32) 541456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = isSigned ? RTLIB::SINTTOFP_I64_F32 : RTLIB::UINTTOFP_I64_F32; 54157df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng else 541656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = isSigned ? RTLIB::SINTTOFP_I64_F64 : RTLIB::UINTTOFP_I64_F64; 54177df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng } else { 54187df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng if (VT == MVT::f32) 541956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = isSigned ? RTLIB::SINTTOFP_I32_F32 : RTLIB::UINTTOFP_I32_F32; 54207df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng else 542156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = isSigned ? RTLIB::SINTTOFP_I32_F64 : RTLIB::UINTTOFP_I32_F64; 54227df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng } 54237df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng 54247df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng // Promote the operand if needed. 54257df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng if (getTypeAction(SrcVT) == Promote) { 54267df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng SDOperand Tmp = PromoteOp(Node->getOperand(0)); 54277df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng Tmp = isSigned 54287df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng ? DAG.getNode(ISD::SIGN_EXTEND_INREG, Tmp.getValueType(), Tmp, 54297df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng DAG.getValueType(SrcVT)) 54307df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng : DAG.getZeroExtendInReg(Tmp, SrcVT); 54317df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng Node = DAG.UpdateNodeOperands(Op, Tmp).Val; 54327df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng } 54334c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng 54344c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng const char *LibCall = TLI.getLibcallName(LC); 54354c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng if (LibCall) 54364c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng Lo = ExpandLibCall(TLI.getLibcallName(LC), Node, isSigned, Hi); 54374c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng else { 54384c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng Lo = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, VT, 54394c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng Node->getOperand(0)); 54404c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng if (getTypeAction(Lo.getValueType()) == Expand) 54414c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng ExpandOp(Lo, Lo, Hi); 54424c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng } 54437df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng break; 54447df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng } 544598ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng } 54463e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 544783397363348662e9352455ea1e6e88e7026300a4Chris Lattner // Make sure the resultant values have been legalized themselves, unless this 544883397363348662e9352455ea1e6e88e7026300a4Chris Lattner // is a type that requires multi-step expansion. 544983397363348662e9352455ea1e6e88e7026300a4Chris Lattner if (getTypeAction(NVT) != Expand && NVT != MVT::isVoid) { 545083397363348662e9352455ea1e6e88e7026300a4Chris Lattner Lo = LegalizeOp(Lo); 545113acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (Hi.Val) 545213acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng // Don't legalize the high part if it is expanded to a single node. 545313acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Hi = LegalizeOp(Hi); 545483397363348662e9352455ea1e6e88e7026300a4Chris Lattner } 545505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 545605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng // Remember in a map if the values will be reused later. 545740030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner bool isNew = ExpandedNodes.insert(std::make_pair(Op, std::make_pair(Lo, Hi))); 545805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng assert(isNew && "Value already expanded?!?"); 54593e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 54603e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 5461c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// SplitVectorOp - Given an operand of MVT::Vector type, break it down into 5462c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// two smaller values of MVT::Vector type. 5463c7029805ef35ce9805931067b841e6af11db382eChris Lattnervoid SelectionDAGLegalize::SplitVectorOp(SDOperand Op, SDOperand &Lo, 5464c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand &Hi) { 5465c7029805ef35ce9805931067b841e6af11db382eChris Lattner assert(Op.getValueType() == MVT::Vector && "Cannot split non-vector type!"); 5466c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDNode *Node = Op.Val; 5467c7029805ef35ce9805931067b841e6af11db382eChris Lattner unsigned NumElements = cast<ConstantSDNode>(*(Node->op_end()-2))->getValue(); 5468c7029805ef35ce9805931067b841e6af11db382eChris Lattner assert(NumElements > 1 && "Cannot split a single element vector!"); 5469c7029805ef35ce9805931067b841e6af11db382eChris Lattner unsigned NewNumElts = NumElements/2; 5470c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand NewNumEltsNode = DAG.getConstant(NewNumElts, MVT::i32); 5471c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand TypeNode = *(Node->op_end()-1); 5472c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5473c7029805ef35ce9805931067b841e6af11db382eChris Lattner // See if we already split it. 5474c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::map<SDOperand, std::pair<SDOperand, SDOperand> >::iterator I 5475c7029805ef35ce9805931067b841e6af11db382eChris Lattner = SplitNodes.find(Op); 5476c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (I != SplitNodes.end()) { 5477c7029805ef35ce9805931067b841e6af11db382eChris Lattner Lo = I->second.first; 5478c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi = I->second.second; 5479c7029805ef35ce9805931067b841e6af11db382eChris Lattner return; 5480c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 5481c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5482c7029805ef35ce9805931067b841e6af11db382eChris Lattner switch (Node->getOpcode()) { 5483e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey default: 5484e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 5485e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey Node->dump(); 5486e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 5487e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey assert(0 && "Unhandled operation in SplitVectorOp!"); 5488b2827b0901162169bb2692b77a839c9767849134Chris Lattner case ISD::VBUILD_VECTOR: { 5489bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> LoOps(Node->op_begin(), 5490bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Node->op_begin()+NewNumElts); 5491c7029805ef35ce9805931067b841e6af11db382eChris Lattner LoOps.push_back(NewNumEltsNode); 5492c7029805ef35ce9805931067b841e6af11db382eChris Lattner LoOps.push_back(TypeNode); 5493bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Lo = DAG.getNode(ISD::VBUILD_VECTOR, MVT::Vector, &LoOps[0], LoOps.size()); 5494c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5495bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> HiOps(Node->op_begin()+NewNumElts, 5496bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Node->op_end()-2); 5497c7029805ef35ce9805931067b841e6af11db382eChris Lattner HiOps.push_back(NewNumEltsNode); 5498c7029805ef35ce9805931067b841e6af11db382eChris Lattner HiOps.push_back(TypeNode); 5499bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Hi = DAG.getNode(ISD::VBUILD_VECTOR, MVT::Vector, &HiOps[0], HiOps.size()); 5500c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 5501c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 5502c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VADD: 5503c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VSUB: 5504c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VMUL: 5505c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VSDIV: 5506c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VUDIV: 5507c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VAND: 5508c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VOR: 5509c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VXOR: { 5510c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand LL, LH, RL, RH; 5511c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitVectorOp(Node->getOperand(0), LL, LH); 5512c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitVectorOp(Node->getOperand(1), RL, RH); 5513c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5514c7029805ef35ce9805931067b841e6af11db382eChris Lattner Lo = DAG.getNode(Node->getOpcode(), MVT::Vector, LL, RL, 5515c7029805ef35ce9805931067b841e6af11db382eChris Lattner NewNumEltsNode, TypeNode); 5516c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi = DAG.getNode(Node->getOpcode(), MVT::Vector, LH, RH, 5517c7029805ef35ce9805931067b841e6af11db382eChris Lattner NewNumEltsNode, TypeNode); 5518c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 5519c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 5520c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VLOAD: { 5521c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand Ch = Node->getOperand(0); // Legalize the chain. 5522c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand Ptr = Node->getOperand(1); // Legalize the pointer. 5523c7029805ef35ce9805931067b841e6af11db382eChris Lattner MVT::ValueType EVT = cast<VTSDNode>(TypeNode)->getVT(); 5524c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5525c7029805ef35ce9805931067b841e6af11db382eChris Lattner Lo = DAG.getVecLoad(NewNumElts, EVT, Ch, Ptr, Node->getOperand(2)); 5526c7029805ef35ce9805931067b841e6af11db382eChris Lattner unsigned IncrementSize = NewNumElts * MVT::getSizeInBits(EVT)/8; 5527c7029805ef35ce9805931067b841e6af11db382eChris Lattner Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 5528c7029805ef35ce9805931067b841e6af11db382eChris Lattner getIntPtrConstant(IncrementSize)); 5529c7029805ef35ce9805931067b841e6af11db382eChris Lattner // FIXME: This creates a bogus srcvalue! 5530c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi = DAG.getVecLoad(NewNumElts, EVT, Ch, Ptr, Node->getOperand(2)); 5531c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5532c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Build a factor node to remember that this load is independent of the 5533c7029805ef35ce9805931067b841e6af11db382eChris Lattner // other one. 5534c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand TF = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 5535c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi.getValue(1)); 5536c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5537c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember that we legalized the chain. 5538c7029805ef35ce9805931067b841e6af11db382eChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(TF)); 5539c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 5540c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 55417692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner case ISD::VBIT_CONVERT: { 55427692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // We know the result is a vector. The input may be either a vector or a 55437692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // scalar value. 55447692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner if (Op.getOperand(0).getValueType() != MVT::Vector) { 55457692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // Lower to a store/load. FIXME: this could be improved probably. 55467692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner SDOperand Ptr = CreateStackTemporary(Op.getOperand(0).getValueType()); 55477692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner 5548786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng SDOperand St = DAG.getStore(DAG.getEntryNode(), 55498b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Op.getOperand(0), Ptr, NULL, 0); 55507692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner MVT::ValueType EVT = cast<VTSDNode>(TypeNode)->getVT(); 55517692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner St = DAG.getVecLoad(NumElements, EVT, St, Ptr, DAG.getSrcValue(0)); 55527692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner SplitVectorOp(St, Lo, Hi); 55537692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner } else { 55547692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // If the input is a vector type, we have to either scalarize it, pack it 55557692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // or convert it based on whether the input vector type is legal. 55567692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner SDNode *InVal = Node->getOperand(0).Val; 55577692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner unsigned NumElems = 55587692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner cast<ConstantSDNode>(*(InVal->op_end()-2))->getValue(); 55597692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner MVT::ValueType EVT = cast<VTSDNode>(*(InVal->op_end()-1))->getVT(); 55607692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner 55617692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // If the input is from a single element vector, scalarize the vector, 55627692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // then treat like a scalar. 55637692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner if (NumElems == 1) { 55647692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner SDOperand Scalar = PackVectorOp(Op.getOperand(0), EVT); 55657692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner Scalar = DAG.getNode(ISD::VBIT_CONVERT, MVT::Vector, Scalar, 55667692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner Op.getOperand(1), Op.getOperand(2)); 55677692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner SplitVectorOp(Scalar, Lo, Hi); 55687692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner } else { 55697692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // Split the input vector. 55707692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner SplitVectorOp(Op.getOperand(0), Lo, Hi); 55717692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner 55727692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // Convert each of the pieces now. 55737692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner Lo = DAG.getNode(ISD::VBIT_CONVERT, MVT::Vector, Lo, 55747692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner NewNumEltsNode, TypeNode); 55757692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner Hi = DAG.getNode(ISD::VBIT_CONVERT, MVT::Vector, Hi, 55767692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner NewNumEltsNode, TypeNode); 55777692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner } 55787692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner break; 55797692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner } 55807692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner } 5581c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 5582c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5583c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember in a map if the values will be reused later. 558440030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner bool isNew = 5585c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitNodes.insert(std::make_pair(Op, std::make_pair(Lo, Hi))).second; 5586c7029805ef35ce9805931067b841e6af11db382eChris Lattner assert(isNew && "Value already expanded?!?"); 5587c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 5588c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5589c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5590c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// PackVectorOp - Given an operand of MVT::Vector type, convert it into the 5591c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// equivalent operation that returns a scalar (e.g. F32) or packed value 5592c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// (e.g. MVT::V4F32). When this is called, we know that PackedVT is the right 5593c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// type for the result. 5594c7029805ef35ce9805931067b841e6af11db382eChris LattnerSDOperand SelectionDAGLegalize::PackVectorOp(SDOperand Op, 5595c7029805ef35ce9805931067b841e6af11db382eChris Lattner MVT::ValueType NewVT) { 5596c7029805ef35ce9805931067b841e6af11db382eChris Lattner assert(Op.getValueType() == MVT::Vector && "Bad PackVectorOp invocation!"); 5597c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDNode *Node = Op.Val; 5598c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5599c7029805ef35ce9805931067b841e6af11db382eChris Lattner // See if we already packed it. 5600c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::map<SDOperand, SDOperand>::iterator I = PackedNodes.find(Op); 5601c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (I != PackedNodes.end()) return I->second; 5602c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5603c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand Result; 5604c7029805ef35ce9805931067b841e6af11db382eChris Lattner switch (Node->getOpcode()) { 56052332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: 5606e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 5607832171cb9724d2d31c8dfb73172e2be8f6dd13eeBill Wendling Node->dump(); cerr << "\n"; 5608e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 56092332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner assert(0 && "Unknown vector operation in PackVectorOp!"); 5610c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VADD: 5611c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VSUB: 5612c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VMUL: 5613c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VSDIV: 5614c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VUDIV: 5615c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VAND: 5616c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VOR: 5617c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VXOR: 5618c7029805ef35ce9805931067b841e6af11db382eChris Lattner Result = DAG.getNode(getScalarizedOpcode(Node->getOpcode(), NewVT), 5619c7029805ef35ce9805931067b841e6af11db382eChris Lattner NewVT, 5620c7029805ef35ce9805931067b841e6af11db382eChris Lattner PackVectorOp(Node->getOperand(0), NewVT), 5621c7029805ef35ce9805931067b841e6af11db382eChris Lattner PackVectorOp(Node->getOperand(1), NewVT)); 5622c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 5623c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VLOAD: { 56244794a6b6a09e3440438cd653ec09cf0c2e45be1cChris Lattner SDOperand Ch = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 56254794a6b6a09e3440438cd653ec09cf0c2e45be1cChris Lattner SDOperand Ptr = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 5626c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5627466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SrcValueSDNode *SV = cast<SrcValueSDNode>(Node->getOperand(2)); 5628466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getLoad(NewVT, Ch, Ptr, SV->getValue(), SV->getOffset()); 5629c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5630c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember that we legalized the chain. 5631c7029805ef35ce9805931067b841e6af11db382eChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 5632c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 5633c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 5634b2827b0901162169bb2692b77a839c9767849134Chris Lattner case ISD::VBUILD_VECTOR: 563570c2a61e0a0fb0a7e8b9bddd26bdcc92762772f0Chris Lattner if (Node->getOperand(0).getValueType() == NewVT) { 5636b2827b0901162169bb2692b77a839c9767849134Chris Lattner // Returning a scalar? 5637c7029805ef35ce9805931067b841e6af11db382eChris Lattner Result = Node->getOperand(0); 5638c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else { 5639b2827b0901162169bb2692b77a839c9767849134Chris Lattner // Returning a BUILD_VECTOR? 564017614ea63db9189050b6ca0310f535d12bdedb81Chris Lattner 564117614ea63db9189050b6ca0310f535d12bdedb81Chris Lattner // If all elements of the build_vector are undefs, return an undef. 564217614ea63db9189050b6ca0310f535d12bdedb81Chris Lattner bool AllUndef = true; 564317614ea63db9189050b6ca0310f535d12bdedb81Chris Lattner for (unsigned i = 0, e = Node->getNumOperands()-2; i != e; ++i) 564417614ea63db9189050b6ca0310f535d12bdedb81Chris Lattner if (Node->getOperand(i).getOpcode() != ISD::UNDEF) { 564517614ea63db9189050b6ca0310f535d12bdedb81Chris Lattner AllUndef = false; 564617614ea63db9189050b6ca0310f535d12bdedb81Chris Lattner break; 564717614ea63db9189050b6ca0310f535d12bdedb81Chris Lattner } 564817614ea63db9189050b6ca0310f535d12bdedb81Chris Lattner if (AllUndef) { 564917614ea63db9189050b6ca0310f535d12bdedb81Chris Lattner Result = DAG.getNode(ISD::UNDEF, NewVT); 565017614ea63db9189050b6ca0310f535d12bdedb81Chris Lattner } else { 5651bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Result = DAG.getNode(ISD::BUILD_VECTOR, NewVT, Node->op_begin(), 5652bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Node->getNumOperands()-2); 565317614ea63db9189050b6ca0310f535d12bdedb81Chris Lattner } 5654c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 5655c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 56562332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case ISD::VINSERT_VECTOR_ELT: 56572332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner if (!MVT::isVector(NewVT)) { 56582332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // Returning a scalar? Must be the inserted element. 56592332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = Node->getOperand(1); 56602332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } else { 56612332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = DAG.getNode(ISD::INSERT_VECTOR_ELT, NewVT, 56622332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner PackVectorOp(Node->getOperand(0), NewVT), 56632332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Node->getOperand(1), Node->getOperand(2)); 56642332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 56652332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 56665b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner case ISD::VVECTOR_SHUFFLE: 56675b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner if (!MVT::isVector(NewVT)) { 56685b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner // Returning a scalar? Figure out if it is the LHS or RHS and return it. 56695b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner SDOperand EltNum = Node->getOperand(2).getOperand(0); 56705b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner if (cast<ConstantSDNode>(EltNum)->getValue()) 56715b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner Result = PackVectorOp(Node->getOperand(1), NewVT); 56725b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner else 56735b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner Result = PackVectorOp(Node->getOperand(0), NewVT); 56745b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner } else { 56755b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner // Otherwise, return a VECTOR_SHUFFLE node. First convert the index 56765b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner // vector from a VBUILD_VECTOR to a BUILD_VECTOR. 56775b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner std::vector<SDOperand> BuildVecIdx(Node->getOperand(2).Val->op_begin(), 56785b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner Node->getOperand(2).Val->op_end()-2); 56795b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner MVT::ValueType BVT = MVT::getIntVectorWithNumElements(BuildVecIdx.size()); 5680bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand BV = DAG.getNode(ISD::BUILD_VECTOR, BVT, 5681bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Node->getOperand(2).Val->op_begin(), 5682bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Node->getOperand(2).Val->getNumOperands()-2); 56835b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner 56845b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner Result = DAG.getNode(ISD::VECTOR_SHUFFLE, NewVT, 56855b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner PackVectorOp(Node->getOperand(0), NewVT), 56865b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner PackVectorOp(Node->getOperand(1), NewVT), BV); 56875b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner } 56885b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner break; 5689e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner case ISD::VBIT_CONVERT: 5690e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner if (Op.getOperand(0).getValueType() != MVT::Vector) 5691e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner Result = DAG.getNode(ISD::BIT_CONVERT, NewVT, Op.getOperand(0)); 5692e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner else { 5693e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner // If the input is a vector type, we have to either scalarize it, pack it 5694e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner // or convert it based on whether the input vector type is legal. 5695e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner SDNode *InVal = Node->getOperand(0).Val; 5696e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner unsigned NumElems = 5697e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner cast<ConstantSDNode>(*(InVal->op_end()-2))->getValue(); 5698e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner MVT::ValueType EVT = cast<VTSDNode>(*(InVal->op_end()-1))->getVT(); 5699e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner 5700e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner // Figure out if there is a Packed type corresponding to this Vector 5701ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // type. If so, convert to the vector type. 5702e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 5703e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner if (TVT != MVT::Other && TLI.isTypeLegal(TVT)) { 5704e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner // Turn this into a bit convert of the packed input. 5705e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner Result = DAG.getNode(ISD::BIT_CONVERT, NewVT, 5706e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner PackVectorOp(Node->getOperand(0), TVT)); 5707e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner break; 5708e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner } else if (NumElems == 1) { 5709e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner // Turn this into a bit convert of the scalar input. 5710e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner Result = DAG.getNode(ISD::BIT_CONVERT, NewVT, 5711e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner PackVectorOp(Node->getOperand(0), EVT)); 5712e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner break; 5713e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner } else { 5714b464c446791f03cd8abc0b55bab4d472de534218Chris Lattner // If the input vector type isn't legal, then go through memory. 5715b464c446791f03cd8abc0b55bab4d472de534218Chris Lattner SDOperand Ptr = CreateStackTemporary(NewVT); 5716b464c446791f03cd8abc0b55bab4d472de534218Chris Lattner // Get the alignment for the store. 5717b464c446791f03cd8abc0b55bab4d472de534218Chris Lattner const TargetData &TD = *TLI.getTargetData(); 5718b464c446791f03cd8abc0b55bab4d472de534218Chris Lattner unsigned Align = 5719b464c446791f03cd8abc0b55bab4d472de534218Chris Lattner TD.getABITypeAlignment(MVT::getTypeForValueType(NewVT)); 5720b464c446791f03cd8abc0b55bab4d472de534218Chris Lattner 5721b464c446791f03cd8abc0b55bab4d472de534218Chris Lattner SDOperand St = DAG.getStore(DAG.getEntryNode(), 5722b464c446791f03cd8abc0b55bab4d472de534218Chris Lattner Node->getOperand(0), Ptr, NULL, 0, false, 5723b464c446791f03cd8abc0b55bab4d472de534218Chris Lattner Align); 5724b464c446791f03cd8abc0b55bab4d472de534218Chris Lattner Result = DAG.getLoad(NewVT, St, Ptr, 0, 0); 5725b464c446791f03cd8abc0b55bab4d472de534218Chris Lattner break; 5726e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner } 5727e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner } 5728db3c626eb9e85e9192dbee59ff0c4d143c37c94dEvan Cheng break; 5729b22e35a3c3bec07f5559c1476b3143e0d6d64269Chris Lattner case ISD::VSELECT: 5730b22e35a3c3bec07f5559c1476b3143e0d6d64269Chris Lattner Result = DAG.getNode(ISD::SELECT, NewVT, Op.getOperand(0), 5731b22e35a3c3bec07f5559c1476b3143e0d6d64269Chris Lattner PackVectorOp(Op.getOperand(1), NewVT), 5732b22e35a3c3bec07f5559c1476b3143e0d6d64269Chris Lattner PackVectorOp(Op.getOperand(2), NewVT)); 5733b22e35a3c3bec07f5559c1476b3143e0d6d64269Chris Lattner break; 5734c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 5735c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5736c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (TLI.isTypeLegal(NewVT)) 5737c7029805ef35ce9805931067b841e6af11db382eChris Lattner Result = LegalizeOp(Result); 5738c7029805ef35ce9805931067b841e6af11db382eChris Lattner bool isNew = PackedNodes.insert(std::make_pair(Op, Result)).second; 5739c7029805ef35ce9805931067b841e6af11db382eChris Lattner assert(isNew && "Value already packed?"); 5740c7029805ef35ce9805931067b841e6af11db382eChris Lattner return Result; 5741c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 5742c7029805ef35ce9805931067b841e6af11db382eChris Lattner 57433e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 57443e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// SelectionDAG::Legalize - This is the entry point for the file. 57453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// 57469c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattnervoid SelectionDAG::Legalize() { 57475e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner if (ViewLegalizeDAGs) viewGraph(); 57485e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner 57493e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// run - This is the main entry point to this class. 57503e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// 5751456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SelectionDAGLegalize(*this).LegalizeDAG(); 57523e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 57533e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 5754