LegalizeDAG.cpp revision e10e6f7a36f6f60d1889465a4df51ac8cdb34365
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); 2286595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SDOperand LowerVEXTRACT_SUBVECTOR(SDOperand Op); 2294aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner SDOperand ExpandEXTRACT_VECTOR_ELT(SDOperand Op); 2301597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 2313e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand getIntPtrConstant(uint64_t Val) { 2323e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner return DAG.getConstant(Val, TLI.getPointerTy()); 2333e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 2343e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner}; 2353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 2363e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 2374352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// isVectorShuffleLegal - Return true if a vector shuffle is legal with the 2384352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// specified mask and type. Targets can specify exactly which masks they 2394352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// support and the code generator is tasked with not creating illegal masks. 2404352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// 2414352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// Note that this will also return true for shuffles that are promoted to a 2424352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// different type. 2434352cc9e217e4482ad53f5a7b92c3543f569eb6eChris LattnerSDNode *SelectionDAGLegalize::isShuffleLegal(MVT::ValueType VT, 2444352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner SDOperand Mask) const { 2454352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner switch (TLI.getOperationAction(ISD::VECTOR_SHUFFLE, VT)) { 2464352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner default: return 0; 2474352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Legal: 2484352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Custom: 2494352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 2504352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Promote: { 2514352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // If this is promoted to a different type, convert the shuffle mask and 2524352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // ask if it is legal in the promoted type! 2534352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner MVT::ValueType NVT = TLI.getTypeToPromoteTo(ISD::VECTOR_SHUFFLE, VT); 2544352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 2554352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // If we changed # elements, change the shuffle mask. 2564352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner unsigned NumEltsGrowth = 2574352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner MVT::getVectorNumElements(NVT) / MVT::getVectorNumElements(VT); 2584352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner assert(NumEltsGrowth && "Cannot promote to vector type with fewer elts!"); 2594352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (NumEltsGrowth > 1) { 2604352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Renumber the elements. 261bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Ops; 2624352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner for (unsigned i = 0, e = Mask.getNumOperands(); i != e; ++i) { 2634352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner SDOperand InOp = Mask.getOperand(i); 2644352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner for (unsigned j = 0; j != NumEltsGrowth; ++j) { 2654352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (InOp.getOpcode() == ISD::UNDEF) 2664352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Ops.push_back(DAG.getNode(ISD::UNDEF, MVT::i32)); 2674352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner else { 2684352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner unsigned InEltNo = cast<ConstantSDNode>(InOp)->getValue(); 2694352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Ops.push_back(DAG.getConstant(InEltNo*NumEltsGrowth+j, MVT::i32)); 2704352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2714352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2724352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 273bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Mask = DAG.getNode(ISD::BUILD_VECTOR, NVT, &Ops[0], Ops.size()); 2744352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2754352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner VT = NVT; 2764352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 2774352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2784352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2794352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner return TLI.isShuffleMaskLegal(Mask, VT) ? Mask.Val : 0; 2804352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner} 2814352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 282c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// getScalarizedOpcode - Return the scalar opcode that corresponds to the 283c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// specified vector opcode. 284b89175feffa7148c05d1d30a8e382b8d321edae5Chris Lattnerstatic unsigned getScalarizedOpcode(unsigned VecOp, MVT::ValueType VT) { 2855fbb5d2459a5410590f285250faa604576308a93Nate Begeman switch (VecOp) { 2865fbb5d2459a5410590f285250faa604576308a93Nate Begeman default: assert(0 && "Don't know how to scalarize this opcode!"); 2873e1ce5a44d3d59b2b9ca68a21261f0f487d69269Evan Cheng case ISD::VADD: return MVT::isInteger(VT) ? ISD::ADD : ISD::FADD; 2883e1ce5a44d3d59b2b9ca68a21261f0f487d69269Evan Cheng case ISD::VSUB: return MVT::isInteger(VT) ? ISD::SUB : ISD::FSUB; 2893e1ce5a44d3d59b2b9ca68a21261f0f487d69269Evan Cheng case ISD::VMUL: return MVT::isInteger(VT) ? ISD::MUL : ISD::FMUL; 2903e1ce5a44d3d59b2b9ca68a21261f0f487d69269Evan Cheng case ISD::VSDIV: return MVT::isInteger(VT) ? ISD::SDIV: ISD::FDIV; 2913e1ce5a44d3d59b2b9ca68a21261f0f487d69269Evan Cheng case ISD::VUDIV: return MVT::isInteger(VT) ? ISD::UDIV: ISD::FDIV; 2923e1ce5a44d3d59b2b9ca68a21261f0f487d69269Evan Cheng case ISD::VAND: return MVT::isInteger(VT) ? ISD::AND : 0; 2933e1ce5a44d3d59b2b9ca68a21261f0f487d69269Evan Cheng case ISD::VOR: return MVT::isInteger(VT) ? ISD::OR : 0; 2943e1ce5a44d3d59b2b9ca68a21261f0f487d69269Evan Cheng case ISD::VXOR: return MVT::isInteger(VT) ? ISD::XOR : 0; 2955fbb5d2459a5410590f285250faa604576308a93Nate Begeman } 2965fbb5d2459a5410590f285250faa604576308a93Nate Begeman} 2973e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 2989c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris LattnerSelectionDAGLegalize::SelectionDAGLegalize(SelectionDAG &dag) 2999c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner : TLI(dag.getTargetLoweringInfo()), DAG(dag), 3009c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner ValueTypeActions(TLI.getValueTypeActions()) { 3016a648614e88586e85a36ceb5c1d3b84e4f55b458Nate Begeman assert(MVT::LAST_VALUETYPE <= 32 && 3023e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner "Too many value types for ValueTypeActions to hold!"); 3033e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 3043e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 305e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner/// ComputeTopDownOrdering - Compute a top-down ordering of the dag, where Order 306e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner/// contains all of a nodes operands before it contains the node. 307e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattnerstatic void ComputeTopDownOrdering(SelectionDAG &DAG, 308e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner SmallVector<SDNode*, 64> &Order) { 309e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner 310e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner DenseMap<SDNode*, unsigned> Visited; 311e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner std::vector<SDNode*> Worklist; 312e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Worklist.reserve(128); 31332fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 314e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner // Compute ordering from all of the leaves in the graphs, those (like the 315e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner // entry node) that have no operands. 316e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner for (SelectionDAG::allnodes_iterator I = DAG.allnodes_begin(), 317e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner E = DAG.allnodes_end(); I != E; ++I) { 318e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner if (I->getNumOperands() == 0) { 319e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Visited[I] = 0 - 1U; 320e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Worklist.push_back(I); 321e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner } 32232fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner } 32332fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 324e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner while (!Worklist.empty()) { 325e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner SDNode *N = Worklist.back(); 326e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Worklist.pop_back(); 327e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner 328e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner if (++Visited[N] != N->getNumOperands()) 329e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner continue; // Haven't visited all operands yet 330e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner 331e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Order.push_back(N); 332e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner 333e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner // Now that we have N in, add anything that uses it if all of their operands 334e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner // are now done. 335e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner for (SDNode::use_iterator UI = N->use_begin(), E = N->use_end(); 336e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner UI != E; ++UI) 337e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Worklist.push_back(*UI); 338e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner } 339e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner 340e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner assert(Order.size() == Visited.size() && 341e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Order.size() == 342e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner (unsigned)std::distance(DAG.allnodes_begin(), DAG.allnodes_end()) && 343e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner "Error: DAG is cyclic!"); 34432fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner} 34532fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 3461618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner 3473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnervoid SelectionDAGLegalize::LegalizeDAG() { 3486831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 3496831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = false; 3506831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 351ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // The legalize process is inherently a bottom-up recursive process (users 352ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // legalize their uses before themselves). Given infinite stack space, we 353ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // could just start legalizing on the root and traverse the whole graph. In 354ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // practice however, this causes us to run out of stack space on large basic 35532fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // blocks. To avoid this problem, compute an ordering of the nodes where each 35632fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // node is only legalized after all of its operands are legalized. 3570ed44170752b85c3dd3bbf95459dd2668864f5ecChris Lattner SmallVector<SDNode*, 64> Order; 358e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner ComputeTopDownOrdering(DAG, Order); 359ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner 360c7029805ef35ce9805931067b841e6af11db382eChris Lattner for (unsigned i = 0, e = Order.size(); i != e; ++i) 361c7029805ef35ce9805931067b841e6af11db382eChris Lattner HandleOp(SDOperand(Order[i], 0)); 36232fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 36332fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // Finally, it's possible the root changed. Get the new root. 3643e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand OldRoot = DAG.getRoot(); 36532fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner assert(LegalizedNodes.count(OldRoot) && "Root didn't get legalized?"); 36632fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner DAG.setRoot(LegalizedNodes[OldRoot]); 3673e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 3683e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandedNodes.clear(); 3693e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner LegalizedNodes.clear(); 37071c42a0190300a8903aaea80467b88f15f327ea9Chris Lattner PromotedNodes.clear(); 371c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitNodes.clear(); 372c7029805ef35ce9805931067b841e6af11db382eChris Lattner PackedNodes.clear(); 3733e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 3743e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Remove dead nodes now. 375190a418bf6b49a4ef1c1980229a2f0d516e8a2cdChris Lattner DAG.RemoveDeadNodes(); 3763e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 3773e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 3786831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3796831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// FindCallEndFromCallStart - Given a chained node that is part of a call 3806831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// sequence, find the CALLSEQ_END node that terminates the call sequence. 3816831a815999dde4cf801e2076e66b4943964daf2Chris Lattnerstatic SDNode *FindCallEndFromCallStart(SDNode *Node) { 3826831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->getOpcode() == ISD::CALLSEQ_END) 3836831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Node; 3846831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->use_empty()) 3856831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return 0; // No CallSeqEnd 3866831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3876831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // The chain is usually at the end. 3886831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand TheChain(Node, Node->getNumValues()-1); 3896831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (TheChain.getValueType() != MVT::Other) { 3906831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Sometimes it's at the beginning. 3916831a815999dde4cf801e2076e66b4943964daf2Chris Lattner TheChain = SDOperand(Node, 0); 3926831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (TheChain.getValueType() != MVT::Other) { 3936831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Otherwise, hunt for it. 3946831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 1, e = Node->getNumValues(); i != e; ++i) 3956831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->getValueType(i) == MVT::Other) { 3966831a815999dde4cf801e2076e66b4943964daf2Chris Lattner TheChain = SDOperand(Node, i); 3976831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 3986831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3996831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4006831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Otherwise, we walked into a node without a chain. 4016831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (TheChain.getValueType() != MVT::Other) 4026831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return 0; 4036831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 4046831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 4056831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4066831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (SDNode::use_iterator UI = Node->use_begin(), 4076831a815999dde4cf801e2076e66b4943964daf2Chris Lattner E = Node->use_end(); UI != E; ++UI) { 4086831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4096831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Make sure to only follow users of our token chain. 4106831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDNode *User = *UI; 4116831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = User->getNumOperands(); i != e; ++i) 4126831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (User->getOperand(i) == TheChain) 4136831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (SDNode *Result = FindCallEndFromCallStart(User)) 4146831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Result; 4156831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 4166831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return 0; 4176831a815999dde4cf801e2076e66b4943964daf2Chris Lattner} 4186831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4196831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// FindCallStartFromCallEnd - Given a chained node that is part of a call 4206831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// sequence, find the CALLSEQ_START node that initiates the call sequence. 4216831a815999dde4cf801e2076e66b4943964daf2Chris Lattnerstatic SDNode *FindCallStartFromCallEnd(SDNode *Node) { 4226831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(Node && "Didn't find callseq_start for a call??"); 4236831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->getOpcode() == ISD::CALLSEQ_START) return Node; 4246831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4256831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(Node->getOperand(0).getValueType() == MVT::Other && 4266831a815999dde4cf801e2076e66b4943964daf2Chris Lattner "Node doesn't have a token chain argument!"); 4276831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return FindCallStartFromCallEnd(Node->getOperand(0).Val); 4286831a815999dde4cf801e2076e66b4943964daf2Chris Lattner} 4296831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4306831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// LegalizeAllNodesNotLeadingTo - Recursively walk the uses of N, looking to 4316831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// see if any uses can reach Dest. If no dest operands can get to dest, 4326831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// legalize them, legalize ourself, and return false, otherwise, return true. 433c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// 434c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// Keep track of the nodes we fine that actually do lead to Dest in 435c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// NodesLeadingTo. This avoids retraversing them exponential number of times. 436c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// 437c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattnerbool SelectionDAGLegalize::LegalizeAllNodesNotLeadingTo(SDNode *N, SDNode *Dest, 43800755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner SmallPtrSet<SDNode*, 32> &NodesLeadingTo) { 4396831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (N == Dest) return true; // N certainly leads to Dest :) 4406831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 441c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner // If we've already processed this node and it does lead to Dest, there is no 442c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner // need to reprocess it. 443c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner if (NodesLeadingTo.count(N)) return true; 444c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner 4456831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // If the first result of this node has been already legalized, then it cannot 4466831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // reach N. 4476831a815999dde4cf801e2076e66b4943964daf2Chris Lattner switch (getTypeAction(N->getValueType(0))) { 4486831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Legal: 4496831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (LegalizedNodes.count(SDOperand(N, 0))) return false; 4506831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 4516831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Promote: 4526831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (PromotedNodes.count(SDOperand(N, 0))) return false; 4536831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 4546831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Expand: 4556831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (ExpandedNodes.count(SDOperand(N, 0))) return false; 4566831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 4576831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 4586831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4596831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Okay, this node has not already been legalized. Check and legalize all 4606831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // operands. If none lead to Dest, then we can legalize this node. 4616831a815999dde4cf801e2076e66b4943964daf2Chris Lattner bool OperandsLeadToDest = false; 4626831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i) 4636831a815999dde4cf801e2076e66b4943964daf2Chris Lattner OperandsLeadToDest |= // If an operand leads to Dest, so do we. 464c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner LegalizeAllNodesNotLeadingTo(N->getOperand(i).Val, Dest, NodesLeadingTo); 4656831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 466c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner if (OperandsLeadToDest) { 467c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner NodesLeadingTo.insert(N); 468c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner return true; 469c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner } 4706831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4716831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Okay, this node looks safe, legalize it and return false. 47280edfb3af5ed214c5cd7797b37cb3bb024e98cc6Chris Lattner HandleOp(SDOperand(N, 0)); 4736831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return false; 4746831a815999dde4cf801e2076e66b4943964daf2Chris Lattner} 4756831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 476c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// HandleOp - Legalize, Promote, Expand or Pack the specified operand as 477c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// appropriate for its type. 478c7029805ef35ce9805931067b841e6af11db382eChris Lattnervoid SelectionDAGLegalize::HandleOp(SDOperand Op) { 479c7029805ef35ce9805931067b841e6af11db382eChris Lattner switch (getTypeAction(Op.getValueType())) { 480c7029805ef35ce9805931067b841e6af11db382eChris Lattner default: assert(0 && "Bad type action!"); 481c7029805ef35ce9805931067b841e6af11db382eChris Lattner case Legal: LegalizeOp(Op); break; 482c7029805ef35ce9805931067b841e6af11db382eChris Lattner case Promote: PromoteOp(Op); break; 483c7029805ef35ce9805931067b841e6af11db382eChris Lattner case Expand: 484c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (Op.getValueType() != MVT::Vector) { 485c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand X, Y; 486c7029805ef35ce9805931067b841e6af11db382eChris Lattner ExpandOp(Op, X, Y); 487c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else { 488c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDNode *N = Op.Val; 489c7029805ef35ce9805931067b841e6af11db382eChris Lattner unsigned NumOps = N->getNumOperands(); 490c7029805ef35ce9805931067b841e6af11db382eChris Lattner unsigned NumElements = 491c7029805ef35ce9805931067b841e6af11db382eChris Lattner cast<ConstantSDNode>(N->getOperand(NumOps-2))->getValue(); 492c7029805ef35ce9805931067b841e6af11db382eChris Lattner MVT::ValueType EVT = cast<VTSDNode>(N->getOperand(NumOps-1))->getVT(); 49382dcb4fe23686784a5ad6379860970f1146db50dChris Lattner MVT::ValueType PackedVT = MVT::getVectorType(EVT, NumElements); 494c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (PackedVT != MVT::Other && TLI.isTypeLegal(PackedVT)) { 495c7029805ef35ce9805931067b841e6af11db382eChris Lattner // In the common case, this is a legal vector type, convert it to the 496c7029805ef35ce9805931067b841e6af11db382eChris Lattner // packed operation and type now. 497c7029805ef35ce9805931067b841e6af11db382eChris Lattner PackVectorOp(Op, PackedVT); 498c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else if (NumElements == 1) { 499c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Otherwise, if this is a single element vector, convert it to a 500c7029805ef35ce9805931067b841e6af11db382eChris Lattner // scalar operation. 501c7029805ef35ce9805931067b841e6af11db382eChris Lattner PackVectorOp(Op, EVT); 502c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else { 503c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Otherwise, this is a multiple element vector that isn't supported. 504c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Split it in half and legalize both parts. 505c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand X, Y; 5064794a6b6a09e3440438cd653ec09cf0c2e45be1cChris Lattner SplitVectorOp(Op, X, Y); 507c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 508c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 509c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 510c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 511c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 5126831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 5139f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng/// ExpandConstantFP - Expands the ConstantFP node to an integer constant or 5149f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng/// a load from the constant pool. 5159f87788040786b1bc6530763e4cf7e105bfb2924Evan Chengstatic SDOperand ExpandConstantFP(ConstantFPSDNode *CFP, bool UseCP, 516279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng SelectionDAG &DAG, TargetLowering &TLI) { 517004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng bool Extend = false; 518004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng 519004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // If a FP immediate is precise when represented as a float and if the 520004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // target can do an extending load from float to double, we put it into 521004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // the constant pool as a float, even if it's is statically typed as a 522004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // double. 523004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng MVT::ValueType VT = CFP->getValueType(0); 524004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng bool isDouble = VT == MVT::f64; 525004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng ConstantFP *LLVMC = ConstantFP::get(isDouble ? Type::DoubleTy : 526004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng Type::FloatTy, CFP->getValue()); 5279f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng if (!UseCP) { 528279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng double Val = LLVMC->getValue(); 529279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng return isDouble 530279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng ? DAG.getConstant(DoubleToBits(Val), MVT::i64) 531279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng : DAG.getConstant(FloatToBits(Val), MVT::i32); 532279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng } 533279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng 534004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng if (isDouble && CFP->isExactlyValue((float)CFP->getValue()) && 535004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // Only do this if the target has a native EXTLOAD instruction from f32. 536004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng TLI.isLoadXLegal(ISD::EXTLOAD, MVT::f32)) { 537004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng LLVMC = cast<ConstantFP>(ConstantExpr::getFPTrunc(LLVMC,Type::FloatTy)); 538004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng VT = MVT::f32; 539004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng Extend = true; 540004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 541004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng 542004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng SDOperand CPIdx = DAG.getConstantPool(LLVMC, TLI.getPointerTy()); 543004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng if (Extend) { 544004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng return DAG.getExtLoad(ISD::EXTLOAD, MVT::f64, DAG.getEntryNode(), 545004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng CPIdx, NULL, 0, MVT::f32); 546004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } else { 547004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng return DAG.getLoad(VT, DAG.getEntryNode(), CPIdx, NULL, 0); 548004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 549004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng} 550004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng 5516831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 552912095becac923ff614d7b07728eb345ada67765Evan Cheng/// ExpandFCOPYSIGNToBitwiseOps - Expands fcopysign to a series of bitwise 553912095becac923ff614d7b07728eb345ada67765Evan Cheng/// operations. 554912095becac923ff614d7b07728eb345ada67765Evan Chengstatic 555912095becac923ff614d7b07728eb345ada67765Evan ChengSDOperand ExpandFCOPYSIGNToBitwiseOps(SDNode *Node, MVT::ValueType NVT, 556912095becac923ff614d7b07728eb345ada67765Evan Cheng SelectionDAG &DAG, TargetLowering &TLI) { 557068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng MVT::ValueType VT = Node->getValueType(0); 558912095becac923ff614d7b07728eb345ada67765Evan Cheng MVT::ValueType SrcVT = Node->getOperand(1).getValueType(); 559912095becac923ff614d7b07728eb345ada67765Evan Cheng MVT::ValueType SrcNVT = (SrcVT == MVT::f64) ? MVT::i64 : MVT::i32; 560068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng 561912095becac923ff614d7b07728eb345ada67765Evan Cheng // First get the sign bit of second operand. 562068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng SDOperand Mask1 = (SrcVT == MVT::f64) 563912095becac923ff614d7b07728eb345ada67765Evan Cheng ? DAG.getConstantFP(BitsToDouble(1ULL << 63), SrcVT) 564912095becac923ff614d7b07728eb345ada67765Evan Cheng : DAG.getConstantFP(BitsToFloat(1U << 31), SrcVT); 565068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng Mask1 = DAG.getNode(ISD::BIT_CONVERT, SrcNVT, Mask1); 566912095becac923ff614d7b07728eb345ada67765Evan Cheng SDOperand SignBit= DAG.getNode(ISD::BIT_CONVERT, SrcNVT, Node->getOperand(1)); 567068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng SignBit = DAG.getNode(ISD::AND, SrcNVT, SignBit, Mask1); 568912095becac923ff614d7b07728eb345ada67765Evan Cheng // Shift right or sign-extend it if the two operands have different types. 569912095becac923ff614d7b07728eb345ada67765Evan Cheng int SizeDiff = MVT::getSizeInBits(SrcNVT) - MVT::getSizeInBits(NVT); 570912095becac923ff614d7b07728eb345ada67765Evan Cheng if (SizeDiff > 0) { 571912095becac923ff614d7b07728eb345ada67765Evan Cheng SignBit = DAG.getNode(ISD::SRL, SrcNVT, SignBit, 572912095becac923ff614d7b07728eb345ada67765Evan Cheng DAG.getConstant(SizeDiff, TLI.getShiftAmountTy())); 573912095becac923ff614d7b07728eb345ada67765Evan Cheng SignBit = DAG.getNode(ISD::TRUNCATE, NVT, SignBit); 574912095becac923ff614d7b07728eb345ada67765Evan Cheng } else if (SizeDiff < 0) 575912095becac923ff614d7b07728eb345ada67765Evan Cheng SignBit = DAG.getNode(ISD::SIGN_EXTEND, NVT, SignBit); 576068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng 577068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng // Clear the sign bit of first operand. 578068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng SDOperand Mask2 = (VT == MVT::f64) 579068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng ? DAG.getConstantFP(BitsToDouble(~(1ULL << 63)), VT) 580068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng : DAG.getConstantFP(BitsToFloat(~(1U << 31)), VT); 581068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng Mask2 = DAG.getNode(ISD::BIT_CONVERT, NVT, Mask2); 582912095becac923ff614d7b07728eb345ada67765Evan Cheng SDOperand Result = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 583068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng Result = DAG.getNode(ISD::AND, NVT, Result, Mask2); 584068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng 585068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng // Or the value with the sign bit. 586912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = DAG.getNode(ISD::OR, NVT, Result, SignBit); 587912095becac923ff614d7b07728eb345ada67765Evan Cheng return Result; 588912095becac923ff614d7b07728eb345ada67765Evan Cheng} 589912095becac923ff614d7b07728eb345ada67765Evan Cheng 590912095becac923ff614d7b07728eb345ada67765Evan Cheng 591c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// LegalizeOp - We know that the specified value has a legal type. 592c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// Recursively ensure that the operands have legal types, then return the 593c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// result. 5943e928bbd6153eb08641cbd0ad7d8487378a8b12aChris LattnerSDOperand SelectionDAGLegalize::LegalizeOp(SDOperand Op) { 595c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner assert(isTypeLegal(Op.getValueType()) && 596e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner "Caller should expand or promote operands that are not legal!"); 59745982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner SDNode *Node = Op.Val; 598e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner 5993e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // If this operation defines any values that cannot be represented in a 600e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner // register on this target, make sure to expand or promote them. 60145982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner if (Node->getNumValues() > 1) { 60245982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 603c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (getTypeAction(Node->getValueType(i)) != Legal) { 604c7029805ef35ce9805931067b841e6af11db382eChris Lattner HandleOp(Op.getValue(i)); 6053e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(LegalizedNodes.count(Op) && 606c7029805ef35ce9805931067b841e6af11db382eChris Lattner "Handling didn't add legal operands!"); 60703c8546ec57523970874917854a2fb77b1ff598eChris Lattner return LegalizedNodes[Op]; 6083e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 6093e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 6103e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 61145982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // Note that LegalizeOp may be reentered even from single-use nodes, which 61245982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // means that we always must cache transformed nodes. 613718071c476014cb0aaff9c7d018120d5a8930217Chris Lattner DenseMap<SDOperand, SDOperand>::iterator I = LegalizedNodes.find(Op); 614e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner if (I != LegalizedNodes.end()) return I->second; 6153e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 6169373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman SDOperand Tmp1, Tmp2, Tmp3, Tmp4; 6173e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand Result = Op; 618456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner bool isCustom = false; 619456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 6203e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getOpcode()) { 621948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::FrameIndex: 622948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::EntryToken: 623948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::Register: 624948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::BasicBlock: 625948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetFrameIndex: 62637efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::TargetJumpTable: 627948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetConstant: 6283181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner case ISD::TargetConstantFP: 629948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetConstantPool: 630948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetGlobalAddress: 631b3a0417cad8b625acc3033bd5e24afb9ffd0b084Lauro Ramos Venancio case ISD::TargetGlobalTLSAddress: 632948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetExternalSymbol: 633948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::VALUETYPE: 634948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::SRCVALUE: 635948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::STRING: 636948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::CONDCODE: 637948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner // Primitives must all be legal. 638948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner assert(TLI.isOperationLegal(Node->getValueType(0), Node->getValueType(0)) && 639948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner "This must be legal!"); 640948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner break; 6413e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner default: 642d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner if (Node->getOpcode() >= ISD::BUILTIN_OP_END) { 643d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // If this is a target node, legalize it by legalizing the operands then 644d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // passing it through. 645f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 646c5d7d7c715f7b7a4eeea1ceaafefc3d1d6df2addChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 647d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 648c5d7d7c715f7b7a4eeea1ceaafefc3d1d6df2addChris Lattner 649f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result.getValue(0), &Ops[0], Ops.size()); 650d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner 651d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 652d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner AddLegalizedOperand(Op.getValue(i), Result.getValue(i)); 653d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner return Result.getValue(Op.ResNo); 654d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner } 655d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // Otherwise this is an unhandled builtin node. splat. 656e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 65739833585556a69de12053ca1e104fe7edfd86cbdDan Gohman cerr << "NODE: "; Node->dump(&DAG); cerr << "\n"; 658e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 6593e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(0 && "Do not know how to legalize this operator!"); 6603e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner abort(); 6610d3b67809ccab229a03db8c1bede852fb89eb081Lauro Ramos Venancio case ISD::GLOBAL_OFFSET_TABLE: 6623e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::GlobalAddress: 663b3a0417cad8b625acc3033bd5e24afb9ffd0b084Lauro Ramos Venancio case ISD::GlobalTLSAddress: 66403c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::ExternalSymbol: 66537efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::ConstantPool: 66637efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::JumpTable: // Nothing to do. 6670c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 6680c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner default: assert(0 && "This action is not supported yet!"); 669948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case TargetLowering::Custom: 670948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner Tmp1 = TLI.LowerOperation(Op, DAG); 671948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner if (Tmp1.Val) Result = Tmp1; 672948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner // FALLTHROUGH if the target doesn't want to lower this op after all. 6730c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner case TargetLowering::Legal: 6740c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner break; 6750c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner } 6763e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 677bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman case ISD::FRAMEADDR: 678bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman case ISD::RETURNADDR: 679bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman // The only option for these nodes is to custom lower them. If the target 680bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman // does not custom lower them, then return zero. 681bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman Tmp1 = TLI.LowerOperation(Op, DAG); 682bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman if (Tmp1.Val) 683bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman Result = Tmp1; 684bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman else 685bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman Result = DAG.getConstant(0, TLI.getPointerTy()); 686bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman break; 6872bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey case ISD::EXCEPTIONADDR: { 6882bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); 6892bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey MVT::ValueType VT = Node->getValueType(0); 6902bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 6912bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey default: assert(0 && "This action is not supported yet!"); 6922bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey case TargetLowering::Expand: { 6938782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey unsigned Reg = TLI.getExceptionAddressRegister(); 6942bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey Result = DAG.getCopyFromReg(Tmp1, Reg, VT).getValue(Op.ResNo); 6952bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey } 6962bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey break; 6972bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey case TargetLowering::Custom: 6982bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey Result = TLI.LowerOperation(Op, DAG); 6992bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey if (Result.Val) break; 7002bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey // Fall Thru 701eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner case TargetLowering::Legal: { 702eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner SDOperand Ops[] = { DAG.getConstant(0, VT), Tmp1 }; 703eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner Result = DAG.getNode(ISD::MERGE_VALUES, DAG.getVTList(VT, MVT::Other), 704eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner Ops, 2).getValue(Op.ResNo); 7058782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey break; 7068782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey } 7078782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey } 708eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner } 7098782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey break; 7108782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey case ISD::EHSELECTION: { 7118782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); 7128782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey Tmp2 = LegalizeOp(Node->getOperand(1)); 7138782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey MVT::ValueType VT = Node->getValueType(0); 7148782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 7158782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey default: assert(0 && "This action is not supported yet!"); 7168782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey case TargetLowering::Expand: { 7178782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey unsigned Reg = TLI.getExceptionSelectorRegister(); 7188782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey Result = DAG.getCopyFromReg(Tmp2, Reg, VT).getValue(Op.ResNo); 7198782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey } 7208782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey break; 7218782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey case TargetLowering::Custom: 7228782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey Result = TLI.LowerOperation(Op, DAG); 7238782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey if (Result.Val) break; 7248782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey // Fall Thru 725eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner case TargetLowering::Legal: { 726eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner SDOperand Ops[] = { DAG.getConstant(0, VT), Tmp2 }; 727eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner Result = DAG.getNode(ISD::MERGE_VALUES, DAG.getVTList(VT, MVT::Other), 728eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner Ops, 2).getValue(Op.ResNo); 7292bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey break; 7302bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey } 7312bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey } 732eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner } 7332bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey break; 73408951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner case ISD::AssertSext: 73508951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner case ISD::AssertZext: 73608951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 737c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 73808951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner break; 739308575be66ec3870d27b19df044fda18448feb41Chris Lattner case ISD::MERGE_VALUES: 740c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner // Legalize eliminates MERGE_VALUES nodes. 741456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = Node->getOperand(Op.ResNo); 742456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 74369a52155d2eff066b49dbac385113002fd9dba14Chris Lattner case ISD::CopyFromReg: 74469a52155d2eff066b49dbac385113002fd9dba14Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 7457310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner Result = Op.getValue(0); 746f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner if (Node->getNumValues() == 2) { 747c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 7487310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } else { 749f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner assert(Node->getNumValues() == 3 && "Invalid copyfromreg!"); 750c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Node->getNumOperands() == 3) { 751f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(2)); 752c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1),Tmp2); 753c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else { 754c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 755c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } 7567310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner AddLegalizedOperand(Op.getValue(2), Result.getValue(2)); 7577310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 75813c184de29c09294ed63b01ac43e1b46c049278eChris Lattner // Since CopyFromReg produces two values, make sure to remember that we 75913c184de29c09294ed63b01ac43e1b46c049278eChris Lattner // legalized both of them. 76013c184de29c09294ed63b01ac43e1b46c049278eChris Lattner AddLegalizedOperand(Op.getValue(0), Result); 76113c184de29c09294ed63b01ac43e1b46c049278eChris Lattner AddLegalizedOperand(Op.getValue(1), Result.getValue(1)); 76213c184de29c09294ed63b01ac43e1b46c049278eChris Lattner return Result.getValue(Op.ResNo); 763fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: { 764fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman MVT::ValueType VT = Op.getValueType(); 765fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman switch (TLI.getOperationAction(ISD::UNDEF, VT)) { 766ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman default: assert(0 && "This action is not supported yet!"); 767ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman case TargetLowering::Expand: 768fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman if (MVT::isInteger(VT)) 769fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Result = DAG.getConstant(0, VT); 770fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman else if (MVT::isFloatingPoint(VT)) 771fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Result = DAG.getConstantFP(0, VT); 772fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman else 773fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman assert(0 && "Unknown value type!"); 774fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 775ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman case TargetLowering::Legal: 776fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 777fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman } 778fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 779fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman } 780d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner 78148b61a729df6576c8833a83893d4086bddff69a5Chris Lattner case ISD::INTRINSIC_W_CHAIN: 78248b61a729df6576c8833a83893d4086bddff69a5Chris Lattner case ISD::INTRINSIC_WO_CHAIN: 78348b61a729df6576c8833a83893d4086bddff69a5Chris Lattner case ISD::INTRINSIC_VOID: { 784f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 785d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 786d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 787f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 78810d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner 78910d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner // Allow the target to custom lower its intrinsics if it wants to. 79048b61a729df6576c8833a83893d4086bddff69a5Chris Lattner if (TLI.getOperationAction(Node->getOpcode(), MVT::Other) == 79110d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner TargetLowering::Custom) { 79210d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 79310d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner if (Tmp3.Val) Result = Tmp3; 79413fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner } 79513fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner 79613fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner if (Result.Val->getNumValues() == 1) break; 79713fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner 79813fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner // Must have return value and chain result. 79913fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner assert(Result.Val->getNumValues() == 2 && 80013fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner "Cannot return more than two values!"); 80113fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner 80213fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner // Since loads produce two values, make sure to remember that we 80313fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner // legalized both of them. 80413fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 80513fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 80613fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner return Result.getValue(Op.ResNo); 807d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner } 80836ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 80936ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner case ISD::LOCATION: 81036ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner assert(Node->getNumOperands() == 5 && "Invalid LOCATION node!"); 81136ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the input chain. 81236ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 81336ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner switch (TLI.getOperationAction(ISD::LOCATION, MVT::Other)) { 81436ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner case TargetLowering::Promote: 81536ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner default: assert(0 && "This action is not supported yet!"); 816f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey case TargetLowering::Expand: { 81744c3b9fdd416c79f4b67cde1aecfced5921efd81Jim Laskey MachineModuleInfo *MMI = DAG.getMachineModuleInfo(); 818abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey bool useDEBUG_LOC = TLI.isOperationLegal(ISD::DEBUG_LOC, MVT::Other); 8191ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey bool useLABEL = TLI.isOperationLegal(ISD::LABEL, MVT::Other); 820abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 82144c3b9fdd416c79f4b67cde1aecfced5921efd81Jim Laskey if (MMI && (useDEBUG_LOC || useLABEL)) { 822abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey const std::string &FName = 823e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey cast<StringSDNode>(Node->getOperand(3))->getValue(); 824abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey const std::string &DirName = 825e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey cast<StringSDNode>(Node->getOperand(4))->getValue(); 82644c3b9fdd416c79f4b67cde1aecfced5921efd81Jim Laskey unsigned SrcFile = MMI->RecordSource(DirName, FName); 827abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 828bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Ops; 829abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(Tmp1); // chain 830abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey SDOperand LineOp = Node->getOperand(1); 831abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey SDOperand ColOp = Node->getOperand(2); 832abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 833abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey if (useDEBUG_LOC) { 834abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(LineOp); // line # 835abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(ColOp); // col # 836abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(DAG.getConstant(SrcFile, MVT::i32)); // source file id 837bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Result = DAG.getNode(ISD::DEBUG_LOC, MVT::Other, &Ops[0], Ops.size()); 838abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } else { 839d0e58e36a9857c45ecdc910ec8db04c21e143db5Jim Laskey unsigned Line = cast<ConstantSDNode>(LineOp)->getValue(); 840d0e58e36a9857c45ecdc910ec8db04c21e143db5Jim Laskey unsigned Col = cast<ConstantSDNode>(ColOp)->getValue(); 84144c3b9fdd416c79f4b67cde1aecfced5921efd81Jim Laskey unsigned ID = MMI->RecordLabel(Line, Col, SrcFile); 842abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(DAG.getConstant(ID, MVT::i32)); 8431ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey Result = DAG.getNode(ISD::LABEL, MVT::Other,&Ops[0],Ops.size()); 844abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } 845e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey } else { 846e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey Result = Tmp1; // chain 847e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey } 84836ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 849e773673d8e0094bbff2f9ab2f2da9ecb5c4d0909Chris Lattner } 85036ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner case TargetLowering::Legal: 8519ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner if (Tmp1 != Node->getOperand(0) || 8529ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner getTypeAction(Node->getOperand(1).getValueType()) == Promote) { 853f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 85436ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Ops.push_back(Tmp1); 8559ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner if (getTypeAction(Node->getOperand(1).getValueType()) == Legal) { 8569ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(Node->getOperand(1)); // line # must be legal. 8579ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(Node->getOperand(2)); // col # must be legal. 8589ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner } else { 8599ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner // Otherwise promote them. 8609ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(PromoteOp(Node->getOperand(1))); 8619ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(PromoteOp(Node->getOperand(2))); 8629ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner } 86336ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Ops.push_back(Node->getOperand(3)); // filename must be legal. 86436ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Ops.push_back(Node->getOperand(4)); // working dir # must be legal. 865f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 86636ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner } 86736ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 86836ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner } 86936ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 870f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey 871f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey case ISD::DEBUG_LOC: 872abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey assert(Node->getNumOperands() == 4 && "Invalid DEBUG_LOC node!"); 873f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey switch (TLI.getOperationAction(ISD::DEBUG_LOC, MVT::Other)) { 874f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey default: assert(0 && "This action is not supported yet!"); 875abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey case TargetLowering::Legal: 876abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 877abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the line #. 878abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the col #. 879abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp4 = LegalizeOp(Node->getOperand(3)); // Legalize the source file id. 880c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4); 881abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey break; 882abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } 883abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey break; 884abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 8851ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey case ISD::LABEL: 8861ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey assert(Node->getNumOperands() == 2 && "Invalid LABEL node!"); 8871ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey switch (TLI.getOperationAction(ISD::LABEL, MVT::Other)) { 888abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey default: assert(0 && "This action is not supported yet!"); 889abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey case TargetLowering::Legal: 890abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 891abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the label id. 892c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 893f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey break; 894a9569f10de686119ff34b89e102b5a3cbafdf195Chris Lattner case TargetLowering::Expand: 895a9569f10de686119ff34b89e102b5a3cbafdf195Chris Lattner Result = LegalizeOp(Node->getOperand(0)); 896a9569f10de686119ff34b89e102b5a3cbafdf195Chris Lattner break; 897f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey } 898551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman break; 89936ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 9003e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::Constant: 9013e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // We know we don't need to expand constants here, constants only have one 9023e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // value and we check that it is fine above. 9033e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 9043e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // FIXME: Maybe we should handle things like targets that don't support full 9053e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // 32-bit immediates? 9063e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 9073e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ConstantFP: { 9083e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Spill FP immediates to the constant pool if the target cannot directly 9093e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // codegen them. Targets often have some immediate values that can be 9103e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // efficiently generated into an FP register without a load. We explicitly 9113e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // leave these constants as ConstantFP nodes for the target to deal with. 9123e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ConstantFPSDNode *CFP = cast<ConstantFPSDNode>(Node); 9133e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 9143e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Check to see if this FP immediate is already legal. 9153e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner bool isLegal = false; 9163e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner for (TargetLowering::legal_fpimm_iterator I = TLI.legal_fpimm_begin(), 9173e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner E = TLI.legal_fpimm_end(); I != E; ++I) 9183e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner if (CFP->isExactlyValue(*I)) { 9193e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner isLegal = true; 9203e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 9213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 9223e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 9233181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner // If this is a legal constant, turn it into a TargetConstantFP node. 9243181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner if (isLegal) { 9253181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner Result = DAG.getTargetConstantFP(CFP->getValue(), CFP->getValueType(0)); 9263181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner break; 9273181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner } 9283181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner 9293181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner switch (TLI.getOperationAction(ISD::ConstantFP, CFP->getValueType(0))) { 9303181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner default: assert(0 && "This action is not supported yet!"); 9313181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner case TargetLowering::Custom: 9323181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 9333181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner if (Tmp3.Val) { 9343181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner Result = Tmp3; 9353181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner break; 9363181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner } 9373181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner // FALLTHROUGH 9383181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner case TargetLowering::Expand: 939279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng Result = ExpandConstantFP(CFP, true, DAG, TLI); 9403e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 9413e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 9423e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 943040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner case ISD::TokenFactor: 944040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner if (Node->getNumOperands() == 2) { 945c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 946c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 947c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 948c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else if (Node->getNumOperands() == 3) { 949c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 950c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 951c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); 952c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 953040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner } else { 954f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 955040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner // Legalize the operands. 956c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 957c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 958f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 959a385e9b20fa7d37d3842ce15afd412f617d83a27Chris Lattner } 960a385e9b20fa7d37d3842ce15afd412f617d83a27Chris Lattner break; 961fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner 962fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner case ISD::FORMAL_ARGUMENTS: 963f4ec817299a4187044a6162c2f520772b3ad69a0Chris Lattner case ISD::CALL: 964fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner // The only option for this is to custom lower it. 965b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp3 = TLI.LowerOperation(Result.getValue(0), DAG); 966b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner assert(Tmp3.Val && "Target didn't custom lower this node!"); 967b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner assert(Tmp3.Val->getNumValues() == Result.Val->getNumValues() && 968b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner "Lowering call/formal_arguments produced unexpected # results!"); 969e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner 970f4ec817299a4187044a6162c2f520772b3ad69a0Chris Lattner // Since CALL/FORMAL_ARGUMENTS nodes produce multiple values, make sure to 971e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner // remember that we legalized all of them, so it doesn't get relegalized. 972b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner for (unsigned i = 0, e = Tmp3.Val->getNumValues(); i != e; ++i) { 973b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp1 = LegalizeOp(Tmp3.getValue(i)); 974e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner if (Op.ResNo == i) 975e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner Tmp2 = Tmp1; 976e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner AddLegalizedOperand(SDOperand(Node, i), Tmp1); 977e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner } 978e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner return Tmp2; 979fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner 980b2827b0901162169bb2692b77a839c9767849134Chris Lattner case ISD::BUILD_VECTOR: 981b2827b0901162169bb2692b77a839c9767849134Chris Lattner switch (TLI.getOperationAction(ISD::BUILD_VECTOR, Node->getValueType(0))) { 9822332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: assert(0 && "This action is not supported yet!"); 9832332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Custom: 9842332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 9852332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner if (Tmp3.Val) { 9862332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = Tmp3; 9872332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 9882332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 9892332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // FALLTHROUGH 990ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case TargetLowering::Expand: 991ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Result = ExpandBUILD_VECTOR(Result.Val); 992b2827b0901162169bb2692b77a839c9767849134Chris Lattner break; 9932332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 9942332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 9952332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case ISD::INSERT_VECTOR_ELT: 9962332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // InVec 9972332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // InVal 9982332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // InEltNo 9992332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 10002332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner 10012332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner switch (TLI.getOperationAction(ISD::INSERT_VECTOR_ELT, 10022332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Node->getValueType(0))) { 10032332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: assert(0 && "This action is not supported yet!"); 10042332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Legal: 10052332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 10062332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Custom: 10072332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 10082332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner if (Tmp3.Val) { 10092332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = Tmp3; 10102332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 10112332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 10122332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // FALLTHROUGH 10132332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Expand: { 10148d5a894501b7546dee94df03118b90126c420820Chris Lattner // If the insert index is a constant, codegen this as a scalar_to_vector, 10158d5a894501b7546dee94df03118b90126c420820Chris Lattner // then a shuffle that inserts it into the right position in the vector. 10168d5a894501b7546dee94df03118b90126c420820Chris Lattner if (ConstantSDNode *InsertPos = dyn_cast<ConstantSDNode>(Tmp3)) { 10178d5a894501b7546dee94df03118b90126c420820Chris Lattner SDOperand ScVec = DAG.getNode(ISD::SCALAR_TO_VECTOR, 10188d5a894501b7546dee94df03118b90126c420820Chris Lattner Tmp1.getValueType(), Tmp2); 10198d5a894501b7546dee94df03118b90126c420820Chris Lattner 10208d5a894501b7546dee94df03118b90126c420820Chris Lattner unsigned NumElts = MVT::getVectorNumElements(Tmp1.getValueType()); 10218d5a894501b7546dee94df03118b90126c420820Chris Lattner MVT::ValueType ShufMaskVT = MVT::getIntVectorWithNumElements(NumElts); 102251eaa86758338d5935c0eff0469c418b1256aba7Dan Gohman MVT::ValueType ShufMaskEltVT = MVT::getVectorElementType(ShufMaskVT); 10238d5a894501b7546dee94df03118b90126c420820Chris Lattner 10248d5a894501b7546dee94df03118b90126c420820Chris Lattner // We generate a shuffle of InVec and ScVec, so the shuffle mask should 10258d5a894501b7546dee94df03118b90126c420820Chris Lattner // be 0,1,2,3,4,5... with the appropriate element replaced with elt 0 of 10268d5a894501b7546dee94df03118b90126c420820Chris Lattner // the RHS. 1027bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> ShufOps; 10288d5a894501b7546dee94df03118b90126c420820Chris Lattner for (unsigned i = 0; i != NumElts; ++i) { 10298d5a894501b7546dee94df03118b90126c420820Chris Lattner if (i != InsertPos->getValue()) 10308d5a894501b7546dee94df03118b90126c420820Chris Lattner ShufOps.push_back(DAG.getConstant(i, ShufMaskEltVT)); 10318d5a894501b7546dee94df03118b90126c420820Chris Lattner else 10328d5a894501b7546dee94df03118b90126c420820Chris Lattner ShufOps.push_back(DAG.getConstant(NumElts, ShufMaskEltVT)); 10338d5a894501b7546dee94df03118b90126c420820Chris Lattner } 1034bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand ShufMask = DAG.getNode(ISD::BUILD_VECTOR, ShufMaskVT, 1035bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &ShufOps[0], ShufOps.size()); 10368d5a894501b7546dee94df03118b90126c420820Chris Lattner 10378d5a894501b7546dee94df03118b90126c420820Chris Lattner Result = DAG.getNode(ISD::VECTOR_SHUFFLE, Tmp1.getValueType(), 10388d5a894501b7546dee94df03118b90126c420820Chris Lattner Tmp1, ScVec, ShufMask); 10398d5a894501b7546dee94df03118b90126c420820Chris Lattner Result = LegalizeOp(Result); 10408d5a894501b7546dee94df03118b90126c420820Chris Lattner break; 10418d5a894501b7546dee94df03118b90126c420820Chris Lattner } 10428d5a894501b7546dee94df03118b90126c420820Chris Lattner 10432332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // If the target doesn't support this, we have to spill the input vector 10442332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // to a temporary stack slot, update the element, then reload it. This is 10452332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // badness. We could also load the value into a vector register (either 10462332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // with a "move to register" or "extload into register" instruction, then 10472332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // permute it into place, if the idx is a constant and if the idx is 10482332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // supported by the target. 1049f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng MVT::ValueType VT = Tmp1.getValueType(); 1050f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng MVT::ValueType EltVT = Tmp2.getValueType(); 1051f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng MVT::ValueType IdxVT = Tmp3.getValueType(); 1052f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng MVT::ValueType PtrVT = TLI.getPointerTy(); 1053f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng SDOperand StackPtr = CreateStackTemporary(VT); 1054eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Store the vector. 10558b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDOperand Ch = DAG.getStore(DAG.getEntryNode(), Tmp1, StackPtr, NULL, 0); 1056eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng 1057eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Truncate or zero extend offset to target pointer type. 1058f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng unsigned CastOpc = (IdxVT > PtrVT) ? ISD::TRUNCATE : ISD::ZERO_EXTEND; 1059f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng Tmp3 = DAG.getNode(CastOpc, PtrVT, Tmp3); 1060eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Add the offset to the index. 1061f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng unsigned EltSize = MVT::getSizeInBits(EltVT)/8; 1062f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng Tmp3 = DAG.getNode(ISD::MUL, IdxVT, Tmp3,DAG.getConstant(EltSize, IdxVT)); 1063f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng SDOperand StackPtr2 = DAG.getNode(ISD::ADD, IdxVT, Tmp3, StackPtr); 1064eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Store the scalar value. 10658b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Ch = DAG.getStore(Ch, Tmp2, StackPtr2, NULL, 0); 1066eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Load the updated vector. 1067466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getLoad(VT, Ch, StackPtr, NULL, 0); 10682332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 10692332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 10702332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 10712332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 1072ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case ISD::SCALAR_TO_VECTOR: 10734352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (!TLI.isTypeLegal(Node->getOperand(0).getValueType())) { 10744352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = LegalizeOp(ExpandSCALAR_TO_VECTOR(Node)); 10754352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 10764352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 10774352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 1078ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // InVal 1079ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 1080ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner switch (TLI.getOperationAction(ISD::SCALAR_TO_VECTOR, 1081ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Node->getValueType(0))) { 1082ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner default: assert(0 && "This action is not supported yet!"); 1083ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case TargetLowering::Legal: 1084ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 10854d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner case TargetLowering::Custom: 10864d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 10874d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner if (Tmp3.Val) { 10884d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner Result = Tmp3; 10894d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner break; 10904d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner } 10914d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner // FALLTHROUGH 10924352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Expand: 10934352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = LegalizeOp(ExpandSCALAR_TO_VECTOR(Node)); 1094ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 1095ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 1096ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 109787100e0b83b808757bf44dabecd1d1048255d1adChris Lattner case ISD::VECTOR_SHUFFLE: 109887100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the input vectors, 109987100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // but not the shuffle mask. 110087100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 110187100e0b83b808757bf44dabecd1d1048255d1adChris Lattner 110287100e0b83b808757bf44dabecd1d1048255d1adChris Lattner // Allow targets to custom lower the SHUFFLEs they support. 11034352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner switch (TLI.getOperationAction(ISD::VECTOR_SHUFFLE,Result.getValueType())) { 11044352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner default: assert(0 && "Unknown operation action!"); 11054352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Legal: 11064352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner assert(isShuffleLegal(Result.getValueType(), Node->getOperand(2)) && 11074352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner "vector shuffle should not be created if not legal!"); 11084352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 11094352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Custom: 111018dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Tmp3 = TLI.LowerOperation(Result, DAG); 111118dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng if (Tmp3.Val) { 111218dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Result = Tmp3; 111318dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng break; 111418dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 111518dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng // FALLTHROUGH 111618dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng case TargetLowering::Expand: { 111718dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng MVT::ValueType VT = Node->getValueType(0); 111851eaa86758338d5935c0eff0469c418b1256aba7Dan Gohman MVT::ValueType EltVT = MVT::getVectorElementType(VT); 111918dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng MVT::ValueType PtrVT = TLI.getPointerTy(); 112018dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng SDOperand Mask = Node->getOperand(2); 112118dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng unsigned NumElems = Mask.getNumOperands(); 1122bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand,8> Ops; 112318dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng for (unsigned i = 0; i != NumElems; ++i) { 112418dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng SDOperand Arg = Mask.getOperand(i); 112518dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng if (Arg.getOpcode() == ISD::UNDEF) { 112618dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Ops.push_back(DAG.getNode(ISD::UNDEF, EltVT)); 112718dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } else { 112818dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng assert(isa<ConstantSDNode>(Arg) && "Invalid VECTOR_SHUFFLE mask!"); 112918dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng unsigned Idx = cast<ConstantSDNode>(Arg)->getValue(); 113018dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng if (Idx < NumElems) 113118dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EltVT, Tmp1, 113218dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng DAG.getConstant(Idx, PtrVT))); 113318dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng else 113418dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EltVT, Tmp2, 113518dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng DAG.getConstant(Idx - NumElems, PtrVT))); 113618dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 113718dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 1138bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Result = DAG.getNode(ISD::BUILD_VECTOR, VT, &Ops[0], Ops.size()); 11394352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 114018dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 11414352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Promote: { 11424352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Change base type to a different vector type. 11434352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner MVT::ValueType OVT = Node->getValueType(0); 11444352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 11454352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 11464352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Cast the two input vectors. 11474352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Tmp1 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp1); 11484352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Tmp2 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp2); 11494352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 11504352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Convert the shuffle mask to the right # elements. 11514352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Tmp3 = SDOperand(isShuffleLegal(OVT, Node->getOperand(2)), 0); 11524352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner assert(Tmp3.Val && "Shuffle not legal?"); 11534352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = DAG.getNode(ISD::VECTOR_SHUFFLE, NVT, Tmp1, Tmp2, Tmp3); 11544352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = DAG.getNode(ISD::BIT_CONVERT, OVT, Result); 11554352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 11564352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 115787100e0b83b808757bf44dabecd1d1048255d1adChris Lattner } 115887100e0b83b808757bf44dabecd1d1048255d1adChris Lattner break; 1159384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner 1160384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner case ISD::EXTRACT_VECTOR_ELT: 1161384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 1162384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 1163384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 1164e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner 1165e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner switch (TLI.getOperationAction(ISD::EXTRACT_VECTOR_ELT, 1166e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner Tmp1.getValueType())) { 1167e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner default: assert(0 && "This action is not supported yet!"); 1168e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner case TargetLowering::Legal: 1169e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner break; 1170e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner case TargetLowering::Custom: 1171e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 1172e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner if (Tmp3.Val) { 1173e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner Result = Tmp3; 1174e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner break; 1175e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner } 1176e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner // FALLTHROUGH 11774aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner case TargetLowering::Expand: 11784aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner Result = ExpandEXTRACT_VECTOR_ELT(Result); 1179e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner break; 1180e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962Chris Lattner } 1181384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner break; 1182384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner 11831597221eace1c53ce5f84a7018397497d11a8393Chris Lattner case ISD::VEXTRACT_VECTOR_ELT: 11841597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Result = LegalizeOp(LowerVEXTRACT_VECTOR_ELT(Op)); 1185384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner break; 118687100e0b83b808757bf44dabecd1d1048255d1adChris Lattner 11876595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman case ISD::VEXTRACT_SUBVECTOR: 11886595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Result = LegalizeOp(LowerVEXTRACT_SUBVECTOR(Op)); 11896595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 11906595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 11916831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case ISD::CALLSEQ_START: { 11926831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDNode *CallEnd = FindCallEndFromCallStart(Node); 11936831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 11946831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Recursively Legalize all of the inputs of the call end that do not lead 11956831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // to this call start. This ensures that any libcalls that need be inserted 11966831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // are inserted *before* the CALLSEQ_START. 119700755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner {SmallPtrSet<SDNode*, 32> NodesLeadingTo; 11986831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = CallEnd->getNumOperands(); i != e; ++i) 1199c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner LegalizeAllNodesNotLeadingTo(CallEnd->getOperand(i).Val, Node, 1200c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner NodesLeadingTo); 1201c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner } 12026831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 12036831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Now that we legalized all of the inputs (which may have inserted 12046831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // libcalls) create the new CALLSEQ_START node. 12056831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 12066831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 12076831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Merge in the last call, to ensure that this call start after the last 12086831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // call ended. 1209c5d7d7c715f7b7a4eeea1ceaafefc3d1d6df2addChris Lattner if (LastCALLSEQ_END.getOpcode() != ISD::EntryToken) { 1210b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 1211b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp1 = LegalizeOp(Tmp1); 1212b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner } 12136831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 12146831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Do not try to legalize the target-specific arguments (#1+). 12156831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Tmp1 != Node->getOperand(0)) { 1216f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 12176831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Ops[0] = Tmp1; 1218f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 12196831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 12206831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 12216831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Remember that the CALLSEQ_START is legalized. 12224b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(Op.getValue(0), Result); 12234b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner if (Node->getNumValues() == 2) // If this has a flag result, remember it. 12244b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(Op.getValue(1), Result.getValue(1)); 12254b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner 12266831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Now that the callseq_start and all of the non-call nodes above this call 12276831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // sequence have been legalized, legalize the call itself. During this 12286831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // process, no libcalls can/will be inserted, guaranteeing that no calls 12296831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // can overlap. 12306831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "Inconsistent sequentialization of calls!"); 12316831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand InCallSEQ = LastCALLSEQ_END; 12326831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Note that we are selecting this call! 12336831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = SDOperand(CallEnd, 0); 12346831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = true; 12356831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 12366831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalize the call, starting from the CALLSEQ_END. 12376831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(LastCALLSEQ_END); 12386831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "CALLSEQ_END should have cleared this!"); 12396831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Result; 12406831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 124116cd04d26c53c6f81313cafb85f6c0e7a07cdff6Chris Lattner case ISD::CALLSEQ_END: 12426831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // If the CALLSEQ_START node hasn't been legalized first, legalize it. This 12436831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // will cause this node to be legalized as well as handling libcalls right. 12446831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (LastCALLSEQ_END.Val != Node) { 12456831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(SDOperand(FindCallStartFromCallEnd(Node), 0)); 1246718071c476014cb0aaff9c7d018120d5a8930217Chris Lattner DenseMap<SDOperand, SDOperand>::iterator I = LegalizedNodes.find(Op); 12476831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(I != LegalizedNodes.end() && 12486831a815999dde4cf801e2076e66b4943964daf2Chris Lattner "Legalizing the call start should have legalized this node!"); 12496831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return I->second; 12506831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 12516831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 12526831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Otherwise, the call start has been legalized and everything is going 12536831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // according to plan. Just legalize ourselves normally here. 12543e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 125570814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner // Do not try to legalize the target-specific arguments (#1+), except for 125670814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner // an optional flag input. 125770814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Node->getOperand(Node->getNumOperands()-1).getValueType() != MVT::Flag){ 125870814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Tmp1 != Node->getOperand(0)) { 1259f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 126070814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops[0] = Tmp1; 1261f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 126270814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } 126370814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } else { 126470814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Tmp2 = LegalizeOp(Node->getOperand(Node->getNumOperands()-1)); 126570814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Tmp1 != Node->getOperand(0) || 126670814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Tmp2 != Node->getOperand(Node->getNumOperands()-1)) { 1267f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 126870814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops[0] = Tmp1; 126970814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops.back() = Tmp2; 1270f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 127170814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } 12726a5428934ba6159c1acc541944332e51a6cfa59aChris Lattner } 12734b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner assert(IsLegalizingCall && "Call sequence imbalance between start/end?"); 12746831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // This finishes up call legalization. 12756831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = false; 12764b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner 12774b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner // If the CALLSEQ_END node has a flag, remember that we legalized it. 12784b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 12794b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner if (Node->getNumValues() == 2) 12804b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 12814b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner return Result.getValue(Op.ResNo); 1282a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng case ISD::DYNAMIC_STACKALLOC: { 1283fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1284fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the size. 1285fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the alignment. 1286c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1287fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner 1288c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = Result.getValue(0); 12895f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner Tmp2 = Result.getValue(1); 1290a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), 1291a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng Node->getValueType(0))) { 1292a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng default: assert(0 && "This action is not supported yet!"); 1293903d278a9b7398d8905c90832e587e0556c52789Chris Lattner case TargetLowering::Expand: { 1294903d278a9b7398d8905c90832e587e0556c52789Chris Lattner unsigned SPReg = TLI.getStackPointerRegisterToSaveRestore(); 1295903d278a9b7398d8905c90832e587e0556c52789Chris Lattner assert(SPReg && "Target cannot require DYNAMIC_STACKALLOC expansion and" 1296903d278a9b7398d8905c90832e587e0556c52789Chris Lattner " not tell us which reg is the stack pointer!"); 1297903d278a9b7398d8905c90832e587e0556c52789Chris Lattner SDOperand Chain = Tmp1.getOperand(0); 1298903d278a9b7398d8905c90832e587e0556c52789Chris Lattner SDOperand Size = Tmp2.getOperand(1); 1299903d278a9b7398d8905c90832e587e0556c52789Chris Lattner SDOperand SP = DAG.getCopyFromReg(Chain, SPReg, Node->getValueType(0)); 1300903d278a9b7398d8905c90832e587e0556c52789Chris Lattner Tmp1 = DAG.getNode(ISD::SUB, Node->getValueType(0), SP, Size); // Value 1301903d278a9b7398d8905c90832e587e0556c52789Chris Lattner Tmp2 = DAG.getCopyToReg(SP.getValue(1), SPReg, Tmp1); // Output chain 1302c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp1); 1303c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp2); 1304903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1305903d278a9b7398d8905c90832e587e0556c52789Chris Lattner } 1306903d278a9b7398d8905c90832e587e0556c52789Chris Lattner case TargetLowering::Custom: 13075f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner Tmp3 = TLI.LowerOperation(Tmp1, DAG); 13085f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner if (Tmp3.Val) { 1309c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp3); 1310c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp3.getValue(1)); 1311a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 1312903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1313a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng case TargetLowering::Legal: 1314903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1315a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 1316903d278a9b7398d8905c90832e587e0556c52789Chris Lattner // Since this op produce two values, make sure to remember that we 1317903d278a9b7398d8905c90832e587e0556c52789Chris Lattner // legalized both of them. 1318c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 1319c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 1320903d278a9b7398d8905c90832e587e0556c52789Chris Lattner return Op.ResNo ? Tmp2 : Tmp1; 1321a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 132225a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner case ISD::INLINEASM: { 1323f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 132425a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner bool Changed = false; 132525a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner // Legalize all of the operands of the inline asm, in case they are nodes 132625a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner // that need to be expanded or something. Note we skip the asm string and 132725a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner // all of the TargetConstant flags. 132825a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner SDOperand Op = LegalizeOp(Ops[0]); 132925a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Changed = Op != Ops[0]; 133025a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Ops[0] = Op; 133125a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner 133225a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner bool HasInFlag = Ops.back().getValueType() == MVT::Flag; 133325a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner for (unsigned i = 2, e = Ops.size()-HasInFlag; i < e; ) { 133425a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner unsigned NumVals = cast<ConstantSDNode>(Ops[i])->getValue() >> 3; 133525a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner for (++i; NumVals; ++i, --NumVals) { 133625a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner SDOperand Op = LegalizeOp(Ops[i]); 133725a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner if (Op != Ops[i]) { 133825a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Changed = true; 133925a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Ops[i] = Op; 134025a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 134125a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 134225a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 134325a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner 134425a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner if (HasInFlag) { 134525a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Op = LegalizeOp(Ops.back()); 134625a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Changed |= Op != Ops.back(); 134725a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Ops.back() = Op; 134825a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 1349ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner 135025a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner if (Changed) 1351f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 1352ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner 1353ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner // INLINE asm returns a chain and flag, make sure to add both to the map. 1354c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 1355ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 1356ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner return Result.getValue(Op.ResNo); 135725a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 1358c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner case ISD::BR: 1359c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 13606831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a branch. 13616831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 13626831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 13636831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 13646831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 1365c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 1366c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner break; 136737efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::BRIND: 136837efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 136937efe6764568a3829fee26aba532283131d1a104Nate Begeman // Ensure that libcalls are emitted before a branch. 137037efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 137137efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp1 = LegalizeOp(Tmp1); 137237efe6764568a3829fee26aba532283131d1a104Nate Begeman LastCALLSEQ_END = DAG.getEntryNode(); 137337efe6764568a3829fee26aba532283131d1a104Nate Begeman 137437efe6764568a3829fee26aba532283131d1a104Nate Begeman switch (getTypeAction(Node->getOperand(1).getValueType())) { 137537efe6764568a3829fee26aba532283131d1a104Nate Begeman default: assert(0 && "Indirect target must be legal type (pointer)!"); 137637efe6764568a3829fee26aba532283131d1a104Nate Begeman case Legal: 137737efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the condition. 137837efe6764568a3829fee26aba532283131d1a104Nate Begeman break; 137937efe6764568a3829fee26aba532283131d1a104Nate Begeman } 138037efe6764568a3829fee26aba532283131d1a104Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 138137efe6764568a3829fee26aba532283131d1a104Nate Begeman break; 13823d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case ISD::BR_JT: 13833d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 13843d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // Ensure that libcalls are emitted before a branch. 13853d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 13863d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = LegalizeOp(Tmp1); 13873d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng LastCALLSEQ_END = DAG.getEntryNode(); 13883d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng 13893d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the jumptable node. 13903d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 13913d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng 13923d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng switch (TLI.getOperationAction(ISD::BR_JT, MVT::Other)) { 13933d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng default: assert(0 && "This action is not supported yet!"); 13943d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case TargetLowering::Legal: break; 13953d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case TargetLowering::Custom: 13963d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 13973d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng if (Tmp1.Val) Result = Tmp1; 13983d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng break; 13993d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case TargetLowering::Expand: { 14003d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Chain = Result.getOperand(0); 14013d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Table = Result.getOperand(1); 14023d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Index = Result.getOperand(2); 14033d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng 14043d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng MVT::ValueType PTy = TLI.getPointerTy(); 1405acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey MachineFunction &MF = DAG.getMachineFunction(); 1406acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey unsigned EntrySize = MF.getJumpTableInfo()->getEntrySize(); 14073d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Index= DAG.getNode(ISD::MUL, PTy, Index, DAG.getConstant(EntrySize, PTy)); 14083d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Addr = DAG.getNode(ISD::ADD, PTy, Index, Table); 1409acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey 1410acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey SDOperand LD; 1411acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey switch (EntrySize) { 1412acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey default: assert(0 && "Size of jump table not supported yet."); break; 1413acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey case 4: LD = DAG.getLoad(MVT::i32, Chain, Addr, NULL, 0); break; 1414acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey case 8: LD = DAG.getLoad(MVT::i64, Chain, Addr, NULL, 0); break; 1415acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey } 1416acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey 1417acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey if (TLI.getTargetMachine().getRelocationModel() == Reloc::PIC_) { 14183d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // For PIC, the sequence is: 14193d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // BRIND(load(Jumptable + index) + RelocBase) 14203d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // RelocBase is the JumpTable on PPC and X86, GOT on Alpha 14213d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Reloc; 14223d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng if (TLI.usesGlobalOffsetTable()) 14233d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Reloc = DAG.getNode(ISD::GLOBAL_OFFSET_TABLE, PTy); 14243d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng else 14253d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Reloc = Table; 1426d063189c0958536aae7ecebec5676541b2cdef9bEvan Cheng Addr = (PTy != MVT::i32) ? DAG.getNode(ISD::SIGN_EXTEND, PTy, LD) : LD; 14273d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Addr = DAG.getNode(ISD::ADD, PTy, Addr, Reloc); 14283d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Result = DAG.getNode(ISD::BRIND, MVT::Other, LD.getValue(1), Addr); 14293d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } else { 14303d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Result = DAG.getNode(ISD::BRIND, MVT::Other, LD.getValue(1), LD); 14313d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } 14323d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } 14333d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } 14343d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng break; 1435c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner case ISD::BRCOND: 1436c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 14376831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a return. 14386831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 14396831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 14406831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 14416831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 144247e9223e06390897c3834f8c527001df392570ffChris Lattner switch (getTypeAction(Node->getOperand(1).getValueType())) { 144347e9223e06390897c3834f8c527001df392570ffChris Lattner case Expand: assert(0 && "It's impossible to expand bools"); 144447e9223e06390897c3834f8c527001df392570ffChris Lattner case Legal: 144547e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the condition. 144647e9223e06390897c3834f8c527001df392570ffChris Lattner break; 144747e9223e06390897c3834f8c527001df392570ffChris Lattner case Promote: 144847e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the condition. 1449f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner 1450f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner // The top bits of the promoted condition are not necessarily zero, ensure 1451f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner // that the value is properly zero extended. 1452f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner if (!TLI.MaskedValueIsZero(Tmp2, 1453f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner MVT::getIntVTBitMask(Tmp2.getValueType())^1)) 1454f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner Tmp2 = DAG.getZeroExtendInReg(Tmp2, MVT::i1); 145547e9223e06390897c3834f8c527001df392570ffChris Lattner break; 145647e9223e06390897c3834f8c527001df392570ffChris Lattner } 1457456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1458456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Basic block destination (Op#2) is always legal. 1459c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 14607cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman 14617cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman switch (TLI.getOperationAction(ISD::BRCOND, MVT::Other)) { 14627cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman default: assert(0 && "This action is not supported yet!"); 1463456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1464456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1465456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 1466456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 1467456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 14687cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman case TargetLowering::Expand: 14697cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // Expand brcond's setcc into its constituent parts and create a BR_CC 14707cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // Node. 14717cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman if (Tmp2.getOpcode() == ISD::SETCC) { 14727cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Result = DAG.getNode(ISD::BR_CC, MVT::Other, Tmp1, Tmp2.getOperand(2), 14737cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Tmp2.getOperand(0), Tmp2.getOperand(1), 14747cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Node->getOperand(2)); 14757cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } else { 14767cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Result = DAG.getNode(ISD::BR_CC, MVT::Other, Tmp1, 14777cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman DAG.getCondCode(ISD::SETNE), Tmp2, 14787cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman DAG.getConstant(0, Tmp2.getValueType()), 14797cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Node->getOperand(2)); 14807cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 14817cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman break; 14827cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 14837cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman break; 14847cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman case ISD::BR_CC: 14857cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 14866831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a branch. 14876831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 14886831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 1489750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(2); // LHS 1490750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = Node->getOperand(3); // RHS 1491750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp4 = Node->getOperand(1); // CC 1492181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner 1493750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp2, Tmp3, Tmp4); 1494722cb360690e5d7742b01a9f497fdb65bf8079d5Evan Cheng LastCALLSEQ_END = DAG.getEntryNode(); 1495722cb360690e5d7742b01a9f497fdb65bf8079d5Evan Cheng 1496750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we didn't get both a LHS and RHS back from LegalizeSetCCOperands, 1497750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the LHS is a legal SETCC itself. In this case, we need to compare 1498750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the result against zero to select between true and false values. 1499750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp3.Val == 0) { 1500750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = DAG.getConstant(0, Tmp2.getValueType()); 1501750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp4 = DAG.getCondCode(ISD::SETNE); 1502750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 1503750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 1504750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp4, Tmp2, Tmp3, 1505750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Node->getOperand(4)); 1506456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1507181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner switch (TLI.getOperationAction(ISD::BR_CC, Tmp3.getValueType())) { 1508181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner default: assert(0 && "Unexpected action for BR_CC!"); 1509456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1510456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1511456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp4 = TLI.LowerOperation(Result, DAG); 1512456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp4.Val) Result = Tmp4; 1513181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner break; 15147cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 1515c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner break; 1516f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng case ISD::LOAD: { 1517466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LoadSDNode *LD = cast<LoadSDNode>(Node); 1518466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = LegalizeOp(LD->getChain()); // Legalize the chain. 1519466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = LegalizeOp(LD->getBasePtr()); // Legalize the base pointer. 15202d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth 1521466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ISD::LoadExtType ExtType = LD->getExtensionType(); 1522466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::NON_EXTLOAD) { 1523466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng MVT::ValueType VT = Node->getValueType(0); 1524466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, LD->getOffset()); 1525466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = Result.getValue(0); 1526466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp4 = Result.getValue(1); 1527456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1528466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 1529466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng default: assert(0 && "This action is not supported yet!"); 1530466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Legal: break; 1531466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Custom: 1532466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = TLI.LowerOperation(Tmp3, DAG); 1533466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (Tmp1.Val) { 1534466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = LegalizeOp(Tmp1); 1535466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp4 = LegalizeOp(Tmp1.getValue(1)); 1536466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1537466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1538466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Promote: { 1539466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Only promote a load of vector type to another. 1540466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng assert(MVT::isVector(VT) && "Cannot promote this load!"); 1541466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Change base type to a different vector type. 1542466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), VT); 1543466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 1544466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = DAG.getLoad(NVT, Tmp1, Tmp2, LD->getSrcValue(), 1545466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LD->getSrcValueOffset()); 1546466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = LegalizeOp(DAG.getNode(ISD::BIT_CONVERT, VT, Tmp1)); 154741f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng Tmp4 = LegalizeOp(Tmp1.getValue(1)); 1548466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1549f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 1550466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1551466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Since loads produce two values, make sure to remember that we 1552466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // legalized both of them. 1553466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 0), Tmp3); 1554466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), Tmp4); 1555466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return Op.ResNo ? Tmp4 : Tmp3; 1556466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else { 15572e49f090f9656af7d5ed4d5c4e9fa26af59c7233Evan Cheng MVT::ValueType SrcVT = LD->getLoadedVT(); 1558466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng switch (TLI.getLoadXAction(ExtType, SrcVT)) { 1559466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng default: assert(0 && "This action is not supported yet!"); 1560466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Promote: 1561466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng assert(SrcVT == MVT::i1 && 1562466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng "Can only promote extending LOAD from i1 -> i8!"); 1563466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getExtLoad(ExtType, Node->getValueType(0), Tmp1, Tmp2, 1564466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LD->getSrcValue(), LD->getSrcValueOffset(), 1565466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng MVT::i8); 1566c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = Result.getValue(0); 1567c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Result.getValue(1); 1568c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner break; 1569466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Custom: 1570466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng isCustom = true; 1571466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // FALLTHROUGH 1572466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Legal: 1573466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, LD->getOffset()); 1574466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = Result.getValue(0); 1575466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = Result.getValue(1); 1576456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1577466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (isCustom) { 1578466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = TLI.LowerOperation(Result, DAG); 1579466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (Tmp3.Val) { 1580466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = LegalizeOp(Tmp3); 1581466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = LegalizeOp(Tmp3.getValue(1)); 1582466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1583456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 1584466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1585466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Expand: 1586466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // f64 = EXTLOAD f32 should expand to LOAD, FP_EXTEND 1587466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (SrcVT == MVT::f32 && Node->getValueType(0) == MVT::f64) { 1588466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Load = DAG.getLoad(SrcVT, Tmp1, Tmp2, LD->getSrcValue(), 1589466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LD->getSrcValueOffset()); 1590466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getNode(ISD::FP_EXTEND, Node->getValueType(0), Load); 1591466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = LegalizeOp(Result); // Relegalize new nodes. 1592466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = LegalizeOp(Load.getValue(1)); 1593466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1594466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1595fea997aac5773e936754de5436029c2a4fa1e930Chris Lattner assert(ExtType != ISD::EXTLOAD &&"EXTLOAD should always be supported!"); 1596466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Turn the unsupported load into an EXTLOAD followed by an explicit 1597466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // zero/sign extend inreg. 1598466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getExtLoad(ISD::EXTLOAD, Node->getValueType(0), 1599466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1, Tmp2, LD->getSrcValue(), 1600466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LD->getSrcValueOffset(), SrcVT); 1601466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand ValRes; 1602466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::SEXTLOAD) 1603466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ValRes = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 1604466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result, DAG.getValueType(SrcVT)); 1605466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng else 1606466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ValRes = DAG.getZeroExtendInReg(Result, SrcVT); 1607466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = LegalizeOp(ValRes); // Relegalize new nodes. 1608466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = LegalizeOp(Result.getValue(1)); // Relegalize new nodes. 1609c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner break; 16109d416f713e8b9e4f0c0c2b3f6f57ce2dd8993209Andrew Lenharth } 1611466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Since loads produce two values, make sure to remember that we legalized 1612466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // both of them. 1613466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 1614466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 1615466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return Op.ResNo ? Tmp2 : Tmp1; 161601ff7216dd7829d4094754086baf28aa2d7149acChris Lattner } 161701ff7216dd7829d4094754086baf28aa2d7149acChris Lattner } 16185dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case ISD::EXTRACT_ELEMENT: { 16195dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman MVT::ValueType OpTy = Node->getOperand(0).getValueType(); 16205dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman switch (getTypeAction(OpTy)) { 1621c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner default: assert(0 && "EXTRACT_ELEMENT action for type unimplemented!"); 16225dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case Legal: 16235dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman if (cast<ConstantSDNode>(Node->getOperand(1))->getValue()) { 16245dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // 1 -> Hi 16255dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::SRL, OpTy, Node->getOperand(0), 16265dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman DAG.getConstant(MVT::getSizeInBits(OpTy)/2, 16275dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman TLI.getShiftAmountTy())); 16285dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), Result); 16295dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } else { 16305dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // 0 -> Lo 16315dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), 16325dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Node->getOperand(0)); 16335dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 16345dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman break; 16355dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case Expand: 16365dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // Get both the low and high parts. 16375dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 16385dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman if (cast<ConstantSDNode>(Node->getOperand(1))->getValue()) 16395dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = Tmp2; // 1 -> Hi 16405dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman else 16415dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = Tmp1; // 0 -> Lo 16425dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman break; 16435dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 16443e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 16455dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 16463e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 16473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::CopyToReg: 16483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1649edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 1650c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner assert(isTypeLegal(Node->getOperand(2).getValueType()) && 1651d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner "Register type must be legal!"); 16527310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // Legalize the incoming value (must be a legal type). 1653d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(2)); 1654f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner if (Node->getNumValues() == 1) { 1655c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1), Tmp2); 16567310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } else { 1657f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner assert(Node->getNumValues() == 2 && "Unknown CopyToReg"); 1658c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Node->getNumOperands() == 4) { 1659f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(3)); 1660c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1), Tmp2, 1661c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3); 1662c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else { 1663c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1),Tmp2); 16647310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 16657310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner 16667310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // Since this produces two values, make sure to remember that we legalized 16677310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // both of them. 1668c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 16697310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 1670c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Result; 16717310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 16723e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 16733e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 16743e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::RET: 16753e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 16766831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 16776831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a return. 16786831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 16796831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 16806831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 1681f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner 16823e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getNumOperands()) { 16838e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng case 3: // ret val 168498f8aeb45fc1e54437cbb8f2a7445c609deab832Evan Cheng Tmp2 = Node->getOperand(1); 16858e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Tmp3 = Node->getOperand(2); // Signness 1686f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner switch (getTypeAction(Tmp2.getValueType())) { 16873e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 16888e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, LegalizeOp(Tmp2), Tmp3); 16893e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 1690f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner case Expand: 1691f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner if (Tmp2.getValueType() != MVT::Vector) { 1692f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SDOperand Lo, Hi; 1693f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner ExpandOp(Tmp2, Lo, Hi); 1694edf2e8da256496c19390cfd46da80746373e9989Chris Lattner 1695edf2e8da256496c19390cfd46da80746373e9989Chris Lattner // Big endian systems want the hi reg first. 1696edf2e8da256496c19390cfd46da80746373e9989Chris Lattner if (!TLI.isLittleEndian()) 1697edf2e8da256496c19390cfd46da80746373e9989Chris Lattner std::swap(Lo, Hi); 1698edf2e8da256496c19390cfd46da80746373e9989Chris Lattner 169913acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (Hi.Val) 170013acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Tmp3, Hi,Tmp3); 170113acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng else 170213acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Tmp3); 1703f921a518912df706a8edf1f867f52e8afc6e2b55Chris Lattner Result = LegalizeOp(Result); 1704f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } else { 1705f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SDNode *InVal = Tmp2.Val; 1706f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner unsigned NumElems = 1707f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner cast<ConstantSDNode>(*(InVal->op_end()-2))->getValue(); 1708f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner MVT::ValueType EVT = cast<VTSDNode>(*(InVal->op_end()-1))->getVT(); 1709f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner 1710f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // Figure out if there is a Packed type corresponding to this Vector 1711ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // type. If so, convert to the vector type. 1712f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 1713f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner if (TVT != MVT::Other && TLI.isTypeLegal(TVT)) { 1714ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // Turn this into a return of the vector type. 1715f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner Tmp2 = PackVectorOp(Tmp2, TVT); 17168e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1717f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } else if (NumElems == 1) { 1718f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // Turn this into a return of the scalar type. 1719f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner Tmp2 = PackVectorOp(Tmp2, EVT); 17208e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1721b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner 1722b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // FIXME: Returns of gcc generic vectors smaller than a legal type 1723b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // should be returned in integer registers! 1724b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner 1725f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // The scalarized value type may not be legal, e.g. it might require 1726f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // promotion or expansion. Relegalize the return. 1727f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner Result = LegalizeOp(Result); 1728f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } else { 1729b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // FIXME: Returns of gcc generic vectors larger than a legal vector 1730b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // type should be returned by reference! 1731f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SDOperand Lo, Hi; 1732f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SplitVectorOp(Tmp2, Lo, Hi); 1733fea997aac5773e936754de5436029c2a4fa1e930Chris Lattner Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Tmp3, Hi,Tmp3); 1734f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner Result = LegalizeOp(Result); 1735f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } 1736f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } 1737edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman break; 17383e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Promote: 17398b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 17408e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1741c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); 17428b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 17433e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 17443e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 17453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case 1: // ret void 1746c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 17473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 17483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner default: { // ret <values> 1749f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> NewValues; 17503e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner NewValues.push_back(Tmp1); 17518e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng for (unsigned i = 1, e = Node->getNumOperands(); i < e; i += 2) 17523e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (getTypeAction(Node->getOperand(i).getValueType())) { 17533e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 17544e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner NewValues.push_back(LegalizeOp(Node->getOperand(i))); 17558e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng NewValues.push_back(Node->getOperand(i+1)); 17563e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 17573e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Expand: { 17583e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand Lo, Hi; 1759b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner assert(Node->getOperand(i).getValueType() != MVT::Vector && 1760b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner "FIXME: TODO: implement returning non-legal vector types!"); 17613e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(i), Lo, Hi); 17623e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner NewValues.push_back(Lo); 17638e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng NewValues.push_back(Node->getOperand(i+1)); 176413acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (Hi.Val) { 176513acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng NewValues.push_back(Hi); 176613acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng NewValues.push_back(Node->getOperand(i+1)); 176713acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng } 1768edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman break; 17693e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 17703e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Promote: 17718b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(0 && "Can't promote multiple return value yet!"); 17723e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1773c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 1774c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (NewValues.size() == Node->getNumOperands()) 1775f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &NewValues[0],NewValues.size()); 1776c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner else 1777f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.getNode(ISD::RET, MVT::Other, 1778f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner &NewValues[0], NewValues.size()); 17793e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 17803e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 17813e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 178217c428e23dbeac1f985d725905ce6be1c725491fEvan Cheng 17836862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner if (Result.getOpcode() == ISD::RET) { 17846862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner switch (TLI.getOperationAction(Result.getOpcode(), MVT::Other)) { 17856862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner default: assert(0 && "This action is not supported yet!"); 17866862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner case TargetLowering::Legal: break; 17876862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner case TargetLowering::Custom: 17886862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 17896862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner if (Tmp1.Val) Result = Tmp1; 17906862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner break; 17916862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner } 179217c428e23dbeac1f985d725905ce6be1c725491fEvan Cheng } 17933e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 1794f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng case ISD::STORE: { 17958b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng StoreSDNode *ST = cast<StoreSDNode>(Node); 17968b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp1 = LegalizeOp(ST->getChain()); // Legalize the chain. 17978b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp2 = LegalizeOp(ST->getBasePtr()); // Legalize the pointer. 17988b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 17998b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (!ST->isTruncatingStore()) { 1800d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // Turn 'store float 1.0, Ptr' -> 'store int 0x12345678, Ptr' 1801d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // FIXME: We shouldn't do this for TargetConstantFP's. 1802d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // FIXME: move this to the DAG Combiner! Note that we can't regress due 1803d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // to phase ordering between legalized code and the dag combiner. This 1804d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // probably means that we need to integrate dag combiner and legalizer 1805d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // together. 1806d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner if (ConstantFPSDNode *CFP = dyn_cast<ConstantFPSDNode>(ST->getValue())) { 1807d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner if (CFP->getValueType(0) == MVT::f32) { 1808d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner Tmp3 = DAG.getConstant(FloatToBits(CFP->getValue()), MVT::i32); 1809d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner } else { 1810d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner assert(CFP->getValueType(0) == MVT::f64 && "Unknown FP type!"); 1811d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner Tmp3 = DAG.getConstant(DoubleToBits(CFP->getValue()), MVT::i64); 1812d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner } 1813d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 1814d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner ST->getSrcValueOffset()); 1815d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner break; 1816d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner } 1817d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner 18188b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng switch (getTypeAction(ST->getStoredVT())) { 18198b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case Legal: { 18208b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = LegalizeOp(ST->getValue()); 18212efce0a589e2a688a1a06b5dc2ed0db32ae79924Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp3, Tmp2, 18228b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng ST->getOffset()); 18238b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 18248b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng MVT::ValueType VT = Tmp3.getValueType(); 18258b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng switch (TLI.getOperationAction(ISD::STORE, VT)) { 18268b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng default: assert(0 && "This action is not supported yet!"); 18278b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case TargetLowering::Legal: break; 18288b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case TargetLowering::Custom: 18298b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 18308b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (Tmp1.Val) Result = Tmp1; 18318b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 18328b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case TargetLowering::Promote: 18338b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng assert(MVT::isVector(VT) && "Unknown legal promote case!"); 18348b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = DAG.getNode(ISD::BIT_CONVERT, 18358b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng TLI.getTypeToPromoteTo(ISD::STORE, VT), Tmp3); 18368b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp1, Tmp3, Tmp2, 18378b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng ST->getSrcValue(), ST->getSrcValueOffset()); 18388b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 18398b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 18402efce0a589e2a688a1a06b5dc2ed0db32ae79924Chris Lattner break; 1841f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 18428b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case Promote: 18438b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // Truncate the value and store the result. 18448b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = PromoteOp(ST->getValue()); 18458b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 18468b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng ST->getSrcValueOffset(), ST->getStoredVT()); 18478b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 184803c8546ec57523970874917854a2fb77b1ff598eChris Lattner 18498b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case Expand: 18508b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng unsigned IncrementSize = 0; 18518b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDOperand Lo, Hi; 1852c7029805ef35ce9805931067b841e6af11db382eChris Lattner 18538b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // If this is a vector type, then we have to calculate the increment as 18548b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // the product of the element size in bytes, and the number of elements 18558b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // in the high half of the vector. 18568b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (ST->getValue().getValueType() == MVT::Vector) { 18578b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDNode *InVal = ST->getValue().Val; 18588b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng unsigned NumElems = 18598b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng cast<ConstantSDNode>(*(InVal->op_end()-2))->getValue(); 18608b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng MVT::ValueType EVT = cast<VTSDNode>(*(InVal->op_end()-1))->getVT(); 18618b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 18628b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // Figure out if there is a Packed type corresponding to this Vector 1863ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // type. If so, convert to the vector type. 18648b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 18658b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (TVT != MVT::Other && TLI.isTypeLegal(TVT)) { 1866ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // Turn this into a normal store of the vector type. 18678b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = PackVectorOp(Node->getOperand(1), TVT); 18688b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 18698b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng ST->getSrcValueOffset()); 18708b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = LegalizeOp(Result); 18718b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 18728b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else if (NumElems == 1) { 18738b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // Turn this into a normal store of the scalar type. 18748b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = PackVectorOp(Node->getOperand(1), EVT); 18758b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 18768b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng ST->getSrcValueOffset()); 18778b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // The scalarized value type may not be legal, e.g. it might require 18788b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // promotion or expansion. Relegalize the scalar store. 18798b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = LegalizeOp(Result); 18808b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 18818b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else { 18828b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SplitVectorOp(Node->getOperand(1), Lo, Hi); 18838b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng IncrementSize = NumElems/2 * MVT::getSizeInBits(EVT)/8; 18848b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 1885c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else { 18868b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng ExpandOp(Node->getOperand(1), Lo, Hi); 18877b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng IncrementSize = Hi.Val ? MVT::getSizeInBits(Hi.getValueType())/8 : 0; 18888b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 18898b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (!TLI.isLittleEndian()) 18908b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng std::swap(Lo, Hi); 1891c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 1892c7029805ef35ce9805931067b841e6af11db382eChris Lattner 18938b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Lo = DAG.getStore(Tmp1, Lo, Tmp2, ST->getSrcValue(), 1894b464c446791f03cd8abc0b55bab4d472de534218Chris Lattner ST->getSrcValueOffset(), ST->isVolatile(), 1895b464c446791f03cd8abc0b55bab4d472de534218Chris Lattner ST->getAlignment()); 18967b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng 18977b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng if (Hi.Val == NULL) { 18987b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng // Must be int <-> float one-to-one expansion. 18997b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng Result = Lo; 19007b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng break; 19017b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng } 19027b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng 19038b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 19048b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng getIntPtrConstant(IncrementSize)); 19058b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng assert(isTypeLegal(Tmp2.getValueType()) && 19068b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng "Pointers must be legal!"); 19078b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // FIXME: This sets the srcvalue of both halves to be the same, which is 19088b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // wrong. 19098b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Hi = DAG.getStore(Tmp1, Hi, Tmp2, ST->getSrcValue(), 1910b464c446791f03cd8abc0b55bab4d472de534218Chris Lattner ST->getSrcValueOffset(), ST->isVolatile(), 1911b464c446791f03cd8abc0b55bab4d472de534218Chris Lattner std::min(ST->getAlignment(), IncrementSize)); 19128b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo, Hi); 19138b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 19148b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 19158b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else { 19168b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // Truncating store 19178b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng assert(isTypeLegal(ST->getValue().getValueType()) && 19188b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng "Cannot handle illegal TRUNCSTORE yet!"); 19198b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = LegalizeOp(ST->getValue()); 19208b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 19218b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // The only promote case we handle is TRUNCSTORE:i1 X into 19228b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // -> TRUNCSTORE:i8 (and X, 1) 19238b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (ST->getStoredVT() == MVT::i1 && 19248b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng TLI.getStoreXAction(MVT::i1) == TargetLowering::Promote) { 19258b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // Promote the bool to a mask then store. 19268b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = DAG.getNode(ISD::AND, Tmp3.getValueType(), Tmp3, 19278b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng DAG.getConstant(1, Tmp3.getValueType())); 19288b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 19298b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng ST->getSrcValueOffset(), MVT::i8); 19308b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else if (Tmp1 != ST->getChain() || Tmp3 != ST->getValue() || 19318b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp2 != ST->getBasePtr()) { 19328b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp3, Tmp2, 19338b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng ST->getOffset()); 1934d9731af75b38f30c02f19d6e81333b9c2599ad5fChris Lattner } 1935c7029805ef35ce9805931067b841e6af11db382eChris Lattner 19368b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng MVT::ValueType StVT = cast<StoreSDNode>(Result.Val)->getStoredVT(); 19378b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng switch (TLI.getStoreXAction(StVT)) { 19388b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng default: assert(0 && "This action is not supported yet!"); 19398b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case TargetLowering::Legal: break; 19408b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case TargetLowering::Custom: 19418b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 19428b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (Tmp1.Val) Result = Tmp1; 19438b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 19448b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 19453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 19463e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 1947f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 194895762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth case ISD::PCMARKER: 194995762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1950c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 195195762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth break; 1952140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case ISD::STACKSAVE: 1953140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1954c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 1955c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = Result.getValue(0); 1956c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Result.getValue(1); 1957456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1958140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner switch (TLI.getOperationAction(ISD::STACKSAVE, MVT::Other)) { 1959140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner default: assert(0 && "This action is not supported yet!"); 1960456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1961456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1962c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 1963c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Tmp3.Val) { 1964c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp3); 1965c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp3.getValue(1)); 1966140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 1967456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 1968140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case TargetLowering::Expand: 19694f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // Expand to CopyFromReg if the target set 19704f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // StackPointerRegisterToSaveRestore. 19714f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner if (unsigned SP = TLI.getStackPointerRegisterToSaveRestore()) { 1972c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getCopyFromReg(Result.getOperand(0), SP, 19734f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Node->getValueType(0)); 1974c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Tmp1.getValue(1); 19754f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } else { 1976c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getNode(ISD::UNDEF, Node->getValueType(0)); 1977c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Node->getOperand(0); 19784f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } 1979456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 1980140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 1981456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1982456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Since stacksave produce two values, make sure to remember that we 1983456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // legalized both of them. 1984c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 1985c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 1986c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Op.ResNo ? Tmp2 : Tmp1; 1987456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1988140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case ISD::STACKRESTORE: 1989140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1990140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 1991c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 1992140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner 1993140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner switch (TLI.getOperationAction(ISD::STACKRESTORE, MVT::Other)) { 1994140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner default: assert(0 && "This action is not supported yet!"); 1995456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1996456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1997456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 1998456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 1999140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 2000140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case TargetLowering::Expand: 20014f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // Expand to CopyToReg if the target set 20024f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // StackPointerRegisterToSaveRestore. 20034f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner if (unsigned SP = TLI.getStackPointerRegisterToSaveRestore()) { 20044f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Result = DAG.getCopyToReg(Tmp1, SP, Tmp2); 20054f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } else { 20064f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Result = Tmp1; 20074f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } 2008140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 2009140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 2010140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 2011140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner 201251b8d54922350b7e1c2cd5a5183ef2c5f5d1b1d5Andrew Lenharth case ISD::READCYCLECOUNTER: 201351b8d54922350b7e1c2cd5a5183ef2c5f5d1b1d5Andrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain 2014c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2015f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng switch (TLI.getOperationAction(ISD::READCYCLECOUNTER, 2016f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng Node->getValueType(0))) { 2017f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng default: assert(0 && "This action is not supported yet!"); 20186a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng case TargetLowering::Legal: 20196a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp1 = Result.getValue(0); 20206a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp2 = Result.getValue(1); 20216a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng break; 2022f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng case TargetLowering::Custom: 2023f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng Result = TLI.LowerOperation(Result, DAG); 20246a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp1 = LegalizeOp(Result.getValue(0)); 20256a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp2 = LegalizeOp(Result.getValue(1)); 2026f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng break; 2027f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng } 202849c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth 202949c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth // Since rdcc produce two values, make sure to remember that we legalized 203049c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth // both of them. 20316a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 20326a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 2033c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Result; 2034f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 20352ee743ff9be43c350075a2fa15d11a79bff36775Chris Lattner case ISD::SELECT: 203647e9223e06390897c3834f8c527001df392570ffChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 203747e9223e06390897c3834f8c527001df392570ffChris Lattner case Expand: assert(0 && "It's impossible to expand bools"); 203847e9223e06390897c3834f8c527001df392570ffChris Lattner case Legal: 203947e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the condition. 204047e9223e06390897c3834f8c527001df392570ffChris Lattner break; 204147e9223e06390897c3834f8c527001df392570ffChris Lattner case Promote: 204247e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); // Promote the condition. 2043b6c806045bbd4a650f90f613a96cee01a1584412Chris Lattner // Make sure the condition is either zero or one. 2044b6c806045bbd4a650f90f613a96cee01a1584412Chris Lattner if (!TLI.MaskedValueIsZero(Tmp1, 2045b6c806045bbd4a650f90f613a96cee01a1584412Chris Lattner MVT::getIntVTBitMask(Tmp1.getValueType())^1)) 2046b6c806045bbd4a650f90f613a96cee01a1584412Chris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, MVT::i1); 204747e9223e06390897c3834f8c527001df392570ffChris Lattner break; 204847e9223e06390897c3834f8c527001df392570ffChris Lattner } 20493e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // TrueVal 20502ee743ff9be43c350075a2fa15d11a79bff36775Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // FalseVal 205155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner 2052c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2053456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2054b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman switch (TLI.getOperationAction(ISD::SELECT, Tmp2.getValueType())) { 205555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action is not supported yet!"); 2056456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2057456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: { 2058456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2059456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2060456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2061456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 20629373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case TargetLowering::Expand: 20639373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman if (Tmp1.getOpcode() == ISD::SETCC) { 20649373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getSelectCC(Tmp1.getOperand(0), Tmp1.getOperand(1), 20659373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2, Tmp3, 20669373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman cast<CondCodeSDNode>(Tmp1.getOperand(2))->get()); 20679373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } else { 20689373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getSelectCC(Tmp1, 20699373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman DAG.getConstant(0, Tmp1.getValueType()), 20709373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2, Tmp3, ISD::SETNE); 20719373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 207255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 207355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Promote: { 207455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner MVT::ValueType NVT = 207555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner TLI.getTypeToPromoteTo(ISD::SELECT, Tmp2.getValueType()); 207655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner unsigned ExtOp, TruncOp; 207741f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng if (MVT::isVector(Tmp2.getValueType())) { 207841f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng ExtOp = ISD::BIT_CONVERT; 207941f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng TruncOp = ISD::BIT_CONVERT; 208041f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng } else if (MVT::isInteger(Tmp2.getValueType())) { 2081456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner ExtOp = ISD::ANY_EXTEND; 2082456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner TruncOp = ISD::TRUNCATE; 208355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } else { 2084456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner ExtOp = ISD::FP_EXTEND; 2085456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner TruncOp = ISD::FP_ROUND; 208655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 208755ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner // Promote each of the values to the new type. 208855ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Tmp2 = DAG.getNode(ExtOp, NVT, Tmp2); 208955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Tmp3 = DAG.getNode(ExtOp, NVT, Tmp3); 209055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner // Perform the larger operation, then round down. 209155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Tmp1, Tmp2,Tmp3); 209255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Result = DAG.getNode(TruncOp, Node->getValueType(0), Result); 209355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 209455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 209555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 20963e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2097750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SELECT_CC: { 2098750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = Node->getOperand(0); // LHS 2099750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(1); // RHS 21009373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); // True 21019373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp4 = LegalizeOp(Node->getOperand(3)); // False 2102750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand CC = Node->getOperand(4); 21039373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman 2104750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp1, Tmp2, CC); 2105750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2106750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we didn't get both a LHS and RHS back from LegalizeSetCCOperands, 2107750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the LHS is a legal SETCC itself. In this case, we need to compare 2108750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the result against zero to select between true and false values. 2109750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp2.Val == 0) { 2110750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getConstant(0, Tmp1.getValueType()); 2111750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CC = DAG.getCondCode(ISD::SETNE); 2112750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 2113750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4, CC); 2114750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2115750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Everything is legal, see if we should expand this op or something. 2116750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (TLI.getOperationAction(ISD::SELECT_CC, Tmp3.getValueType())) { 2117750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "This action is not supported yet!"); 2118750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case TargetLowering::Legal: break; 2119750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case TargetLowering::Custom: 2120750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = TLI.LowerOperation(Result, DAG); 2121750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp1.Val) Result = Tmp1; 21229373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 21239373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 21249373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 2125750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 21263e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SETCC: 2127750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = Node->getOperand(0); 2128750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(1); 2129750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = Node->getOperand(2); 2130750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp1, Tmp2, Tmp3); 2131750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2132750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we had to Expand the SetCC operands into a SELECT node, then it may 2133750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // not always be possible to return a true LHS & RHS. In this case, just 2134750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // return the value we legalized, returned in the LHS 2135750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp2.Val == 0) { 2136750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = Tmp1; 21373e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 21383e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 2139b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman 214073e142f2b6a3b5223de2d557d646f319ca8168cfChris Lattner switch (TLI.getOperationAction(ISD::SETCC, Tmp1.getValueType())) { 2141456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner default: assert(0 && "Cannot handle this action for SETCC yet!"); 2142456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2143456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2144456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH. 2145456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 21462b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2147456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 21482b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp4 = TLI.LowerOperation(Result, DAG); 21492b49c500838666dd0186d021389d4dd70ffda240Evan Cheng if (Tmp4.Val) Result = Tmp4; 2150456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2151b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman break; 2152ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth case TargetLowering::Promote: { 2153ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // First step, figure out the appropriate operation to use. 2154ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Allow SETCC to not be supported for all legal data types 2155ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Mostly this targets FP 2156ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth MVT::ValueType NewInTy = Node->getOperand(0).getValueType(); 215700755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner MVT::ValueType OldVT = NewInTy; OldVT = OldVT; 2158ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 2159ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Scan for the appropriate larger type to use. 2160ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth while (1) { 2161ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth NewInTy = (MVT::ValueType)(NewInTy+1); 2162ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 2163ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth assert(MVT::isInteger(NewInTy) == MVT::isInteger(OldVT) && 2164ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth "Fell off of the edge of the integer world"); 2165ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth assert(MVT::isFloatingPoint(NewInTy) == MVT::isFloatingPoint(OldVT) && 2166ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth "Fell off of the edge of the floating point world"); 2167ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 2168ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // If the target supports SETCC of this type, use it. 21691ccf26a6392034a11827aeaa0d58d025ecb2b85aChris Lattner if (TLI.isOperationLegal(ISD::SETCC, NewInTy)) 2170ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth break; 2171ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 2172ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth if (MVT::isInteger(NewInTy)) 2173ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth assert(0 && "Cannot promote Legal Integer SETCC yet"); 2174ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth else { 2175ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth Tmp1 = DAG.getNode(ISD::FP_EXTEND, NewInTy, Tmp1); 2176ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth Tmp2 = DAG.getNode(ISD::FP_EXTEND, NewInTy, Tmp2); 2177ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 2178c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp1); 2179c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp2); 21802b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2181433f8acefb78f1c8a2cf79c12b101ce7c4b20202Evan Cheng Result = LegalizeOp(Result); 21825e3efbc2ca459621400211f7370d7f121d4827d9Andrew Lenharth break; 2183ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 2184b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman case TargetLowering::Expand: 2185b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman // Expand a setcc node into a select_cc of the same condition, lhs, and 2186b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman // rhs that selects between const 1 (true) and const 0 (false). 2187b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman MVT::ValueType VT = Node->getValueType(0); 2188b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman Result = DAG.getNode(ISD::SELECT_CC, VT, Tmp1, Tmp2, 2189b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman DAG.getConstant(1, VT), DAG.getConstant(0, VT), 21902b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp3); 2191b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman break; 2192b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman } 21933e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2194e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner case ISD::MEMSET: 2195e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner case ISD::MEMCPY: 2196e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner case ISD::MEMMOVE: { 2197deb692e756cd3826e4ecc6eaec3397177c8b89ceChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Chain 2198e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Pointer 2199e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner 2200e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner if (Node->getOpcode() == ISD::MEMSET) { // memset = ubyte 2201e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner switch (getTypeAction(Node->getOperand(2).getValueType())) { 2202e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Expand: assert(0 && "Cannot expand a byte!"); 2203e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Legal: 2204deb692e756cd3826e4ecc6eaec3397177c8b89ceChris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); 2205e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 2206e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Promote: 2207deb692e756cd3826e4ecc6eaec3397177c8b89ceChris Lattner Tmp3 = PromoteOp(Node->getOperand(2)); 2208e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 2209e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } 2210e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } else { 2211edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Tmp3 = LegalizeOp(Node->getOperand(2)); // memcpy/move = pointer, 2212e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } 2213272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner 2214272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner SDOperand Tmp4; 2215272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner switch (getTypeAction(Node->getOperand(3).getValueType())) { 22166814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner case Expand: { 22176814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner // Length is too big, just take the lo-part of the length. 22186814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner SDOperand HiPart; 2219fa9aa2b424d0a7d9f7201f8fdcf5ccfa05db3a80Chris Lattner ExpandOp(Node->getOperand(3), Tmp4, HiPart); 22206814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner break; 22216814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner } 2222e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Legal: 2223e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp4 = LegalizeOp(Node->getOperand(3)); 2224e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 2225e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Promote: 2226e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp4 = PromoteOp(Node->getOperand(3)); 2227272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner break; 2228272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner } 2229272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner 2230272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner SDOperand Tmp5; 2231272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner switch (getTypeAction(Node->getOperand(4).getValueType())) { // uint 2232272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner case Expand: assert(0 && "Cannot expand this yet!"); 2233272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner case Legal: 2234272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner Tmp5 = LegalizeOp(Node->getOperand(4)); 2235272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner break; 2236272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner case Promote: 2237e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp5 = PromoteOp(Node->getOperand(4)); 2238e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 2239e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } 224055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner 224155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), MVT::Other)) { 224255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action not implemented for this operation!"); 2243456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2244456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2245456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 224655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Legal: 2247c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4, Tmp5); 2248456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2249456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2250456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2251456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 225255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 225355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Expand: { 2254e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner // Otherwise, the target does not support this operation. Lower the 2255e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner // operation to an explicit libcall as appropriate. 2256e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner MVT::ValueType IntPtr = TLI.getPointerTy(); 2257a69571c7991813c93cba64e88eced6899ce93d81Owen Anderson const Type *IntPtrTy = TLI.getTargetData()->getIntPtrType(); 225847857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TargetLowering::ArgListTy Args; 225947857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TargetLowering::ArgListEntry Entry; 2260e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner 22613bfbf4ea990930d153e58e153f319408341a94feReid Spencer const char *FnName = 0; 2262e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner if (Node->getOpcode() == ISD::MEMSET) { 2263d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov Entry.Node = Tmp2; Entry.Ty = IntPtrTy; 226447857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Args.push_back(Entry); 2265dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner // Extend the (previously legalized) ubyte argument to be an int value 2266dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner // for the call. 2267dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner if (Tmp3.getValueType() > MVT::i32) 2268dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner Tmp3 = DAG.getNode(ISD::TRUNCATE, MVT::i32, Tmp3); 2269dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner else 2270dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner Tmp3 = DAG.getNode(ISD::ZERO_EXTEND, MVT::i32, Tmp3); 2271d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov Entry.Node = Tmp3; Entry.Ty = Type::Int32Ty; Entry.isSExt = true; 227247857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Args.push_back(Entry); 2273d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov Entry.Node = Tmp4; Entry.Ty = IntPtrTy; Entry.isSExt = false; 227447857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Args.push_back(Entry); 2275e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner 2276e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner FnName = "memset"; 2277e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } else if (Node->getOpcode() == ISD::MEMCPY || 2278e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner Node->getOpcode() == ISD::MEMMOVE) { 2279b25fe8267182662750dcb76a70a20f4b14a5568dAnton Korobeynikov Entry.Ty = IntPtrTy; 2280b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer Entry.Node = Tmp2; Args.push_back(Entry); 2281b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer Entry.Node = Tmp3; Args.push_back(Entry); 2282b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer Entry.Node = Tmp4; Args.push_back(Entry); 2283e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner FnName = Node->getOpcode() == ISD::MEMMOVE ? "memmove" : "memcpy"; 2284e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } else { 2285e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner assert(0 && "Unknown op!"); 2286e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } 228745982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner 2288e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner std::pair<SDOperand,SDOperand> CallResult = 228947857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TLI.LowerCallTo(Tmp1, Type::VoidTy, false, false, CallingConv::C, false, 2290e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner DAG.getExternalSymbol(FnName, IntPtr), Args, DAG); 2291456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = CallResult.second; 229255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 229355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 2294e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } 2295e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner break; 2296e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } 229752d08bd9d8a8dcc06148525c7fad6f2ebcad0a42Chris Lattner 22985b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SHL_PARTS: 22995b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SRA_PARTS: 23005b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SRL_PARTS: { 2301f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 230284f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner bool Changed = false; 230384f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 230484f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 230584f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner Changed |= Ops.back() != Node->getOperand(i); 230684f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner } 2307c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Changed) 2308f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 23092c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 231005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), 231105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Node->getValueType(0))) { 231205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng default: assert(0 && "This action is not supported yet!"); 2313456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2314456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2315456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2316456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) { 2317456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand Tmp2, RetVal(0, 0); 231805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) { 2319456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = LegalizeOp(Tmp1.getValue(i)); 232005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng AddLegalizedOperand(SDOperand(Node, i), Tmp2); 232105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if (i == Op.ResNo) 232212f2274ba8c6af21e8b6c71ef872afe43a64b6d7Evan Cheng RetVal = Tmp2; 232305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 2324269f8c069105e13f3845a8dbc7796ac9a15dc882Chris Lattner assert(RetVal.Val && "Illegal result number"); 232505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng return RetVal; 232605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 232705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng break; 232805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 232905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 23302c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Since these produce multiple values, make sure to remember that we 23312c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // legalized all of them. 23322c8086f4b9916b2d02842be5e375276023225fbaChris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 23332c8086f4b9916b2d02842be5e375276023225fbaChris Lattner AddLegalizedOperand(SDOperand(Node, i), Result.getValue(i)); 23342c8086f4b9916b2d02842be5e375276023225fbaChris Lattner return Result.getValue(Op.ResNo); 233584f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner } 23362c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 23372c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Binary operators 23383e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ADD: 23393e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SUB: 23403e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::MUL: 2341c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MULHS: 2342c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MULHU: 23433e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::UDIV: 23443e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SDIV: 23453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::AND: 23463e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::OR: 23473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::XOR: 234803c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SHL: 234903c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SRL: 235003c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SRA: 235101b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FADD: 235201b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FSUB: 235301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FMUL: 235401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FDIV: 23553e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 2356f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth switch (getTypeAction(Node->getOperand(1).getValueType())) { 2357f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Expand: assert(0 && "Not possible"); 2358f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Legal: 2359f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the RHS. 2360f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth break; 2361f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Promote: 2362f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the RHS. 2363f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth break; 2364f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth } 2365c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 2366c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2367456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2368e8f65f1e62ea1d4f2ca9fd0137ae2e0ce20e26e1Andrew Lenharth switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2369bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner default: assert(0 && "BinOp legalize operation not supported"); 2370456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2371456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2372456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2373456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 237457030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth break; 2375bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner case TargetLowering::Expand: { 237652cc1ea2a1a374b58801398460a6289723089d91Evan Cheng if (Node->getValueType(0) == MVT::i32) { 237752cc1ea2a1a374b58801398460a6289723089d91Evan Cheng switch (Node->getOpcode()) { 237852cc1ea2a1a374b58801398460a6289723089d91Evan Cheng default: assert(0 && "Do not know how to expand this integer BinOp!"); 237952cc1ea2a1a374b58801398460a6289723089d91Evan Cheng case ISD::UDIV: 238052cc1ea2a1a374b58801398460a6289723089d91Evan Cheng case ISD::SDIV: 238156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = Node->getOpcode() == ISD::UDIV 238256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::UDIV_I32 : RTLIB::SDIV_I32; 238352cc1ea2a1a374b58801398460a6289723089d91Evan Cheng SDOperand Dummy; 238447857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer bool isSigned = Node->getOpcode() == ISD::SDIV; 238556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, isSigned, Dummy); 238652cc1ea2a1a374b58801398460a6289723089d91Evan Cheng }; 238752cc1ea2a1a374b58801398460a6289723089d91Evan Cheng break; 238852cc1ea2a1a374b58801398460a6289723089d91Evan Cheng } 238952cc1ea2a1a374b58801398460a6289723089d91Evan Cheng 2390bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner assert(MVT::isVector(Node->getValueType(0)) && 2391bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner "Cannot expand this binary operator!"); 2392bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner // Expand the operation into a bunch of nasty scalar code. 2393bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Ops; 239451eaa86758338d5935c0eff0469c418b1256aba7Dan Gohman MVT::ValueType EltVT = MVT::getVectorElementType(Node->getValueType(0)); 2395bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner MVT::ValueType PtrVT = TLI.getPointerTy(); 2396bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner for (unsigned i = 0, e = MVT::getVectorNumElements(Node->getValueType(0)); 2397bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner i != e; ++i) { 2398bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner SDOperand Idx = DAG.getConstant(i, PtrVT); 2399bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner SDOperand LHS = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EltVT, Tmp1, Idx); 2400bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner SDOperand RHS = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EltVT, Tmp2, Idx); 2401bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner Ops.push_back(DAG.getNode(Node->getOpcode(), EltVT, LHS, RHS)); 2402bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner } 2403bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Result = DAG.getNode(ISD::BUILD_VECTOR, Node->getValueType(0), 2404bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &Ops[0], Ops.size()); 2405bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner break; 2406bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner } 2407cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case TargetLowering::Promote: { 2408cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng switch (Node->getOpcode()) { 2409cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng default: assert(0 && "Do not know how to promote this BinOp!"); 2410cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case ISD::AND: 2411cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case ISD::OR: 2412cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case ISD::XOR: { 2413cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng MVT::ValueType OVT = Node->getValueType(0); 2414cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 2415cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng assert(MVT::isVector(OVT) && "Cannot promote this BinOp!"); 2416cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng // Bit convert each of the values to the new type. 2417cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Tmp1 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp1); 2418cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Tmp2 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp2); 2419cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 2420cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng // Bit convert the result back the original type. 2421cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Result = DAG.getNode(ISD::BIT_CONVERT, OVT, Result); 2422cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng break; 2423cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng } 2424cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng } 2425cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng } 2426e8f65f1e62ea1d4f2ca9fd0137ae2e0ce20e26e1Andrew Lenharth } 24273e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2428a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 2429a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case ISD::FCOPYSIGN: // FCOPYSIGN does not require LHS/RHS to match type! 2430a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 2431a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner switch (getTypeAction(Node->getOperand(1).getValueType())) { 2432a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Expand: assert(0 && "Not possible"); 2433a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Legal: 2434a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the RHS. 2435a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 2436a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Promote: 2437a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the RHS. 2438a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 2439a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner } 2440a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 2441a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2442a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 2443a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2444a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner default: assert(0 && "Operation not supported"); 2445a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case TargetLowering::Custom: 2446a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2447a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner if (Tmp1.Val) Result = Tmp1; 24488f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner break; 2449a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case TargetLowering::Legal: break; 2450912095becac923ff614d7b07728eb345ada67765Evan Cheng case TargetLowering::Expand: { 2451636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng // If this target supports fabs/fneg natively and select is cheap, 2452636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng // do this efficiently. 2453636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng if (!TLI.isSelectExpensive() && 2454636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng TLI.getOperationAction(ISD::FABS, Tmp1.getValueType()) == 2455636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng TargetLowering::Legal && 2456912095becac923ff614d7b07728eb345ada67765Evan Cheng TLI.getOperationAction(ISD::FNEG, Tmp1.getValueType()) == 2457636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng TargetLowering::Legal) { 24588f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Get the sign bit of the RHS. 24598f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner MVT::ValueType IVT = 24608f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Tmp2.getValueType() == MVT::f32 ? MVT::i32 : MVT::i64; 24618f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SDOperand SignBit = DAG.getNode(ISD::BIT_CONVERT, IVT, Tmp2); 24628f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SignBit = DAG.getSetCC(TLI.getSetCCResultTy(), 24638f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SignBit, DAG.getConstant(0, IVT), ISD::SETLT); 24648f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Get the absolute value of the result. 24658f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SDOperand AbsVal = DAG.getNode(ISD::FABS, Tmp1.getValueType(), Tmp1); 24668f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Select between the nabs and abs value based on the sign bit of 24678f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // the input. 24688f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Result = DAG.getNode(ISD::SELECT, AbsVal.getValueType(), SignBit, 24698f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner DAG.getNode(ISD::FNEG, AbsVal.getValueType(), 24708f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner AbsVal), 24718f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner AbsVal); 24728f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Result = LegalizeOp(Result); 24738f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner break; 24748f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner } 24758f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner 24768f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Otherwise, do bitwise ops! 2477912095becac923ff614d7b07728eb345ada67765Evan Cheng MVT::ValueType NVT = 2478912095becac923ff614d7b07728eb345ada67765Evan Cheng Node->getValueType(0) == MVT::f32 ? MVT::i32 : MVT::i64; 2479912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = ExpandFCOPYSIGNToBitwiseOps(Node, NVT, DAG, TLI); 2480912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), Result); 2481912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = LegalizeOp(Result); 2482a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 2483a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner } 2484912095becac923ff614d7b07728eb345ada67765Evan Cheng } 2485a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 2486a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 2487551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::ADDC: 2488551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::SUBC: 2489551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); 2490551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); 2491551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2492551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // Since this produces two values, make sure to remember that we legalized 2493551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // both of them. 2494551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 2495551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 2496551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman return Result; 2497edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 2498551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::ADDE: 2499551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::SUBE: 2500551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); 2501551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); 2502551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); 2503551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2504551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // Since this produces two values, make sure to remember that we legalized 2505551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // both of them. 2506551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 2507551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 2508551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman return Result; 2509551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman 2510419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case ISD::BUILD_PAIR: { 2511419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman MVT::ValueType PairTy = Node->getValueType(0); 2512419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman // TODO: handle the case where the Lo and Hi operands are not of legal type 2513419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Lo 2514419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Hi 2515419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman switch (TLI.getOperationAction(ISD::BUILD_PAIR, PairTy)) { 2516456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 2517456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2518456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner assert(0 && "Cannot promote/custom this yet!"); 2519419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case TargetLowering::Legal: 2520419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman if (Tmp1 != Node->getOperand(0) || Tmp2 != Node->getOperand(1)) 2521419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Result = DAG.getNode(ISD::BUILD_PAIR, PairTy, Tmp1, Tmp2); 2522419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 2523419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case TargetLowering::Expand: 2524419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, PairTy, Tmp1); 2525419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = DAG.getNode(ISD::ANY_EXTEND, PairTy, Tmp2); 2526419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = DAG.getNode(ISD::SHL, PairTy, Tmp2, 2527419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman DAG.getConstant(MVT::getSizeInBits(PairTy)/2, 2528419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman TLI.getShiftAmountTy())); 2529456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::OR, PairTy, Tmp1, Tmp2); 2530419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 2531419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman } 2532419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 2533419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman } 2534419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman 2535c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman case ISD::UREM: 2536c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman case ISD::SREM: 253701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FREM: 2538c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 2539c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS 2540456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2541c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2542456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: assert(0 && "Cannot promote this yet!"); 2543456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2544456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2545456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 254657030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth case TargetLowering::Legal: 2547c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2548456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2549456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2550456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2551456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 255257030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth break; 25534c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner case TargetLowering::Expand: 25546b5578f052c2405c0d622192ccacfd47563c99a8Evan Cheng unsigned DivOpc= (Node->getOpcode() == ISD::UREM) ? ISD::UDIV : ISD::SDIV; 255547857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer bool isSigned = DivOpc == ISD::SDIV; 25564c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner if (MVT::isInteger(Node->getValueType(0))) { 255752cc1ea2a1a374b58801398460a6289723089d91Evan Cheng if (TLI.getOperationAction(DivOpc, Node->getValueType(0)) == 255852cc1ea2a1a374b58801398460a6289723089d91Evan Cheng TargetLowering::Legal) { 255952cc1ea2a1a374b58801398460a6289723089d91Evan Cheng // X % Y -> X-X/Y*Y 256052cc1ea2a1a374b58801398460a6289723089d91Evan Cheng MVT::ValueType VT = Node->getValueType(0); 25616b5578f052c2405c0d622192ccacfd47563c99a8Evan Cheng Result = DAG.getNode(DivOpc, VT, Tmp1, Tmp2); 256252cc1ea2a1a374b58801398460a6289723089d91Evan Cheng Result = DAG.getNode(ISD::MUL, VT, Result, Tmp2); 256352cc1ea2a1a374b58801398460a6289723089d91Evan Cheng Result = DAG.getNode(ISD::SUB, VT, Tmp1, Result); 256452cc1ea2a1a374b58801398460a6289723089d91Evan Cheng } else { 256552cc1ea2a1a374b58801398460a6289723089d91Evan Cheng assert(Node->getValueType(0) == MVT::i32 && 256652cc1ea2a1a374b58801398460a6289723089d91Evan Cheng "Cannot expand this binary operator!"); 256756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = Node->getOpcode() == ISD::UREM 256856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::UREM_I32 : RTLIB::SREM_I32; 256952cc1ea2a1a374b58801398460a6289723089d91Evan Cheng SDOperand Dummy; 257056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, isSigned, Dummy); 257152cc1ea2a1a374b58801398460a6289723089d91Evan Cheng } 25724c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner } else { 25734c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner // Floating point mod -> fmod libcall. 257456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = Node->getValueType(0) == MVT::f32 257556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::REM_F32 : RTLIB::REM_F64; 25764c64dd7977bc676399df0d5d2bf8016a3242780eChris Lattner SDOperand Dummy; 257756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, 257856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Dummy); 2579c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman } 2580c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman break; 2581c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman } 2582c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman break; 2583acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAARG: { 2584acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2585acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 2586acc398c195a697795bff3245943d104eb19192b9Nate Begeman 25875c62f337fe846247f5e72acb32844e24b4f18b71Chris Lattner MVT::ValueType VT = Node->getValueType(0); 2588acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), MVT::Other)) { 2589acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 2590456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2591456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2592456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 2593acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 2594c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 2595c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = Result.getValue(0); 2596456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Result.getValue(1); 2597456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2598456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2599456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = TLI.LowerOperation(Result, DAG); 2600456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp2.Val) { 2601456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Tmp2); 2602456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Tmp2.getValue(1)); 2603456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2604456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2605acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2606acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: { 2607466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SrcValueSDNode *SV = cast<SrcValueSDNode>(Node->getOperand(2)); 2608acc398c195a697795bff3245943d104eb19192b9Nate Begeman SDOperand VAList = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp2, 2609466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SV->getValue(), SV->getOffset()); 2610acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Increment the pointer, VAList, to the next vaarg 2611acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp3 = DAG.getNode(ISD::ADD, TLI.getPointerTy(), VAList, 2612acc398c195a697795bff3245943d104eb19192b9Nate Begeman DAG.getConstant(MVT::getSizeInBits(VT)/8, 2613acc398c195a697795bff3245943d104eb19192b9Nate Begeman TLI.getPointerTy())); 2614acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Store the incremented VAList to the legalized pointer 26158b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = DAG.getStore(VAList.getValue(1), Tmp3, Tmp2, SV->getValue(), 26168b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SV->getOffset()); 2617acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Load the actual argument out of the pointer VAList 2618466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getLoad(VT, Tmp3, VAList, NULL, 0); 2619456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Result.getValue(1)); 2620acc398c195a697795bff3245943d104eb19192b9Nate Begeman Result = LegalizeOp(Result); 2621acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2622acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2623acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2624acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Since VAARG produces two values, make sure to remember that we 2625acc398c195a697795bff3245943d104eb19192b9Nate Begeman // legalized both of them. 2626acc398c195a697795bff3245943d104eb19192b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result); 2627456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp1); 2628456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner return Op.ResNo ? Tmp1 : Result; 2629acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2630acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2631acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VACOPY: 2632acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2633acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the dest pointer. 2634acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the source pointer. 2635acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2636acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VACOPY, MVT::Other)) { 2637acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 2638456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2639456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2640456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 2641acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 2642c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, 2643c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Node->getOperand(3), Node->getOperand(4)); 2644456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2645456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2646456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2647456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2648acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2649acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: 2650acc398c195a697795bff3245943d104eb19192b9Nate Begeman // This defaults to loading a pointer from the input and storing it to the 2651acc398c195a697795bff3245943d104eb19192b9Nate Begeman // output, returning the chain. 2652466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SrcValueSDNode *SVD = cast<SrcValueSDNode>(Node->getOperand(3)); 26538b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SrcValueSDNode *SVS = cast<SrcValueSDNode>(Node->getOperand(4)); 2654466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp4 = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp3, SVD->getValue(), 2655466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SVD->getOffset()); 26568b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp4.getValue(1), Tmp4, Tmp2, SVS->getValue(), 26578b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SVS->getOffset()); 2658acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2659acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2660acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2661acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2662acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAEND: 2663acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2664acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 2665acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2666acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VAEND, MVT::Other)) { 2667acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 2668456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2669456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2670456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 2671acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 2672c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 2673456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2674456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Tmp1, DAG); 2675456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2676456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2677acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2678acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: 2679acc398c195a697795bff3245943d104eb19192b9Nate Begeman Result = Tmp1; // Default to a no-op, return the chain 2680acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2681acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2682acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2683acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2684acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VASTART: 2685acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2686acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 2687acc398c195a697795bff3245943d104eb19192b9Nate Begeman 2688c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 2689c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 2690acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VASTART, MVT::Other)) { 2691acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 2692456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2693456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2694456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2695456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2696acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2697acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 2698acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 2699acc398c195a697795bff3245943d104eb19192b9Nate Begeman 270035ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman case ISD::ROTL: 270135ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman case ISD::ROTR: 270235ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 270335ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS 2704c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2705c9dc11457809b6641de853af2261721a97ad1f26Scott Michel switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2706c9dc11457809b6641de853af2261721a97ad1f26Scott Michel default: 2707c9dc11457809b6641de853af2261721a97ad1f26Scott Michel assert(0 && "ROTL/ROTR legalize operation not supported"); 2708c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 2709c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Legal: 2710c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 2711c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Custom: 2712c9dc11457809b6641de853af2261721a97ad1f26Scott Michel Tmp1 = TLI.LowerOperation(Result, DAG); 2713c9dc11457809b6641de853af2261721a97ad1f26Scott Michel if (Tmp1.Val) Result = Tmp1; 2714c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 2715c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Promote: 2716c9dc11457809b6641de853af2261721a97ad1f26Scott Michel assert(0 && "Do not know how to promote ROTL/ROTR"); 2717c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 2718c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Expand: 2719c9dc11457809b6641de853af2261721a97ad1f26Scott Michel assert(0 && "Do not know how to expand ROTL/ROTR"); 2720c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 2721c9dc11457809b6641de853af2261721a97ad1f26Scott Michel } 272235ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman break; 272335ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman 2724d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: 2725d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Op 2726d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2727456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2728456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner assert(0 && "Cannot custom legalize this yet!"); 2729456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 2730c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2731456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2732456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: { 2733456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner MVT::ValueType OVT = Tmp1.getValueType(); 2734456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 2735b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman unsigned DiffBits = MVT::getSizeInBits(NVT) - MVT::getSizeInBits(OVT); 2736456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2737456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 2738456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::BSWAP, NVT, Tmp1); 2739456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRL, NVT, Tmp1, 2740456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner DAG.getConstant(DiffBits, TLI.getShiftAmountTy())); 2741456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2742456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2743456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Expand: 2744456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = ExpandBSWAP(Tmp1); 2745456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2746d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman } 2747d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 2748d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman 2749691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTPOP: 2750691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTTZ: 2751691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTLZ: 2752691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Op 2753691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2754456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: assert(0 && "Cannot custom handle this yet!"); 2755691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Legal: 2756c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2757691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2758691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Promote: { 2759691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth MVT::ValueType OVT = Tmp1.getValueType(); 2760691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 2761edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 2762edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner // Zero extend the argument. 2763691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 2764691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth // Perform the larger operation, then subtract if needed. 2765691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = DAG.getNode(Node->getOpcode(), Node->getValueType(0), Tmp1); 2766456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch (Node->getOpcode()) { 2767691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTPOP: 2768691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Result = Tmp1; 2769691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2770691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTTZ: 2771691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth //if Tmp1 == sizeinbits(NVT) then Tmp1 = sizeinbits(Old VT) 27727cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), Tmp1, 2773b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(NVT), NVT), 27747cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETEQ); 277500b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SELECT, NVT, Tmp2, 2776b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(OVT),NVT), Tmp1); 2777691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2778691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTLZ: 2779456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Tmp1 = Tmp1 - (sizeinbits(NVT) - sizeinbits(Old VT)) 278000b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SUB, NVT, Tmp1, 2781b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(NVT) - 2782b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman MVT::getSizeInBits(OVT), NVT)); 2783691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2784691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 2785691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2786691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 2787691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Expand: 2788456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = ExpandBitCount(Node->getOpcode(), Tmp1); 2789691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 2790691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 2791691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 279200b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen 27932c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Unary operators 27942c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FABS: 27952c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FNEG: 2796da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSQRT: 2797da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSIN: 2798da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FCOS: 27992c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 28002c8086f4b9916b2d02842be5e375276023225fbaChris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2801456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 2802456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 280359ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng isCustom = true; 280459ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng // FALLTHROUGH 28052c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case TargetLowering::Legal: 2806c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 280759ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng if (isCustom) { 280859ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 280959ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng if (Tmp1.Val) Result = Tmp1; 281059ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng } 28112c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 28122c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case TargetLowering::Expand: 2813456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch (Node->getOpcode()) { 2814456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner default: assert(0 && "Unreachable!"); 2815456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case ISD::FNEG: 28162c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Expand Y = FNEG(X) -> Y = SUB -0.0, X 28172c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp2 = DAG.getConstantFP(-0.0, Node->getValueType(0)); 2818456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::FSUB, Node->getValueType(0), Tmp2, Tmp1); 2819f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 2820f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FABS: { 28214af6e0d7836126630f579b0a34f054321187f00bChris Lattner // Expand Y = FABS(X) -> Y = (X >u 0.0) ? X : fneg(X). 28224af6e0d7836126630f579b0a34f054321187f00bChris Lattner MVT::ValueType VT = Node->getValueType(0); 28234af6e0d7836126630f579b0a34f054321187f00bChris Lattner Tmp2 = DAG.getConstantFP(0.0, VT); 28247cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), Tmp1, Tmp2, ISD::SETUGT); 28254af6e0d7836126630f579b0a34f054321187f00bChris Lattner Tmp3 = DAG.getNode(ISD::FNEG, VT, Tmp1); 28264af6e0d7836126630f579b0a34f054321187f00bChris Lattner Result = DAG.getNode(ISD::SELECT, VT, Tmp2, Tmp1, Tmp3); 2827f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 2828f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 2829f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FSQRT: 2830f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FSIN: 2831f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FCOS: { 2832f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner MVT::ValueType VT = Node->getValueType(0); 283356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 2834f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner switch(Node->getOpcode()) { 283556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSQRT: 283656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = VT == MVT::f32 ? RTLIB::SQRT_F32 : RTLIB::SQRT_F64; 283756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 283856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSIN: 283956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = VT == MVT::f32 ? RTLIB::SIN_F32 : RTLIB::SIN_F64; 284056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 284156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FCOS: 284256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = VT == MVT::f32 ? RTLIB::COS_F32 : RTLIB::COS_F64; 284356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 2844f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner default: assert(0 && "Unreachable!"); 2845f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 28462ac4fc032050ff1e0f06bd8e27126e979406effbNate Begeman SDOperand Dummy; 284756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, 284856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Dummy); 2849f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 2850f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 28512c8086f4b9916b2d02842be5e375276023225fbaChris Lattner } 28522c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 28532c8086f4b9916b2d02842be5e375276023225fbaChris Lattner } 28542c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 28556ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner case ISD::FPOWI: { 28566ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner // We always lower FPOWI into a libcall. No target support it yet. 285756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = Node->getValueType(0) == MVT::f32 285856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::POWI_F32 : RTLIB::POWI_F64; 28596ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner SDOperand Dummy; 286056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, 286156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Dummy); 28626ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner break; 28636ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner } 286435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: 286567993f7b974cd17e4372a6b7b9f9cad5ed174df1Chris Lattner if (!isTypeLegal(Node->getOperand(0).getValueType())) { 286635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = ExpandBIT_CONVERT(Node->getValueType(0), Node->getOperand(0)); 286767993f7b974cd17e4372a6b7b9f9cad5ed174df1Chris Lattner } else { 286835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner switch (TLI.getOperationAction(ISD::BIT_CONVERT, 286935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Node->getOperand(0).getValueType())) { 287035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner default: assert(0 && "Unknown operation action!"); 287135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case TargetLowering::Expand: 287235481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = ExpandBIT_CONVERT(Node->getValueType(0), Node->getOperand(0)); 287335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 287435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case TargetLowering::Legal: 287535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 2876c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 287735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 287835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 287935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 288035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 2881d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner case ISD::VBIT_CONVERT: { 2882d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner assert(Op.getOperand(0).getValueType() == MVT::Vector && 2883d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner "Can only have VBIT_CONVERT where input or output is MVT::Vector!"); 2884d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner 2885d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner // The input has to be a vector type, we have to either scalarize it, pack 2886d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner // it, or convert it based on whether the input vector type is legal. 2887d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner SDNode *InVal = Node->getOperand(0).Val; 2888d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner unsigned NumElems = 2889d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner cast<ConstantSDNode>(*(InVal->op_end()-2))->getValue(); 2890d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner MVT::ValueType EVT = cast<VTSDNode>(*(InVal->op_end()-1))->getVT(); 2891d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner 2892d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner // Figure out if there is a Packed type corresponding to this Vector 2893ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // type. If so, convert to the vector type. 2894d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 2895d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner if (TVT != MVT::Other && TLI.isTypeLegal(TVT)) { 2896d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner // Turn this into a bit convert of the packed input. 2897d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), 2898d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner PackVectorOp(Node->getOperand(0), TVT)); 2899d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner break; 2900d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner } else if (NumElems == 1) { 2901d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner // Turn this into a bit convert of the scalar input. 2902d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), 2903d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner PackVectorOp(Node->getOperand(0), EVT)); 2904d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner break; 2905d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner } else { 2906d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner // FIXME: UNIMP! Store then reload 2907d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner assert(0 && "Cast from unsupported vector type not implemented yet!"); 2908d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner } 2909d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner } 2910d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner 29112c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Conversion operators. The source and destination have different types. 2912fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::SINT_TO_FP: 2913fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::UINT_TO_FP: { 2914fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner bool isSigned = Node->getOpcode() == ISD::SINT_TO_FP; 2915fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 2916fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 2917d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen switch (TLI.getOperationAction(Node->getOpcode(), 2918fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getOperand(0).getValueType())) { 2919fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner default: assert(0 && "Unknown operation action!"); 2920456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2921456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2922456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 2923456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 2924456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 2925c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2926456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2927456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2928456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2929456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2930456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2931fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case TargetLowering::Expand: 29326269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey Result = ExpandLegalINT_TO_FP(isSigned, 29336269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey LegalizeOp(Node->getOperand(0)), 29346269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey Node->getValueType(0)); 2935456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2936fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case TargetLowering::Promote: 2937fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = PromoteLegalINT_TO_FP(LegalizeOp(Node->getOperand(0)), 2938fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getValueType(0), 2939fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner isSigned); 2940fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 29415b5b8c27556e5dc8792e37436e4ddd7ab157192dAndrew Lenharth } 2942fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2943fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Expand: 2944fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, 2945fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getValueType(0), Node->getOperand(0)); 2946fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2947fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 2948c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 2949fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner if (isSigned) { 2950c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, Tmp1.getValueType(), 2951c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1, DAG.getValueType(Node->getOperand(0).getValueType())); 2952fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } else { 2953c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, 2954c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Node->getOperand(0).getValueType()); 2955fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 2956c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2957c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); // The 'op' is not necessarily legal! 2958fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2959fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 2960fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2961fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 2962fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::TRUNCATE: 2963fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 2964fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 2965fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 2966c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2967fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2968fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Expand: 2969fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 2970fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner 2971fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner // Since the result is legal, we should just be able to truncate the low 2972fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner // part of the source. 2973fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), Tmp1); 2974fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2975fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 2976fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = PromoteOp(Node->getOperand(0)); 2977fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, Op.getValueType(), Result); 2978fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2979fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 2980fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 2981d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 2982fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::FP_TO_SINT: 2983fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::FP_TO_UINT: 2984fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 2985fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 2986f1fa74ee0d30dfdb854f7d3f5ee67437cc82e250Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 2987f1fa74ee0d30dfdb854f7d3f5ee67437cc82e250Chris Lattner 29881618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))){ 29891618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner default: assert(0 && "Unknown operation action!"); 2990456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2991456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2992456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 2993456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 2994c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2995456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2996456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2997456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2998456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2999456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3000456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 3001456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = PromoteLegalFP_TO_INT(Tmp1, Node->getValueType(0), 3002456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Node->getOpcode() == ISD::FP_TO_SINT); 3003456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 30041618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner case TargetLowering::Expand: 3005d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman if (Node->getOpcode() == ISD::FP_TO_UINT) { 3006d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman SDOperand True, False; 3007d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman MVT::ValueType VT = Node->getOperand(0).getValueType(); 3008d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman MVT::ValueType NVT = Node->getValueType(0); 3009d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman unsigned ShiftAmt = MVT::getSizeInBits(Node->getValueType(0))-1; 3010d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp2 = DAG.getConstantFP((double)(1ULL << ShiftAmt), VT); 3011d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp3 = DAG.getSetCC(TLI.getSetCCResultTy(), 3012d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Node->getOperand(0), Tmp2, ISD::SETLT); 3013d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman True = DAG.getNode(ISD::FP_TO_SINT, NVT, Node->getOperand(0)); 3014d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman False = DAG.getNode(ISD::FP_TO_SINT, NVT, 301501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner DAG.getNode(ISD::FSUB, VT, Node->getOperand(0), 3016d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp2)); 3017d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman False = DAG.getNode(ISD::XOR, NVT, False, 3018d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman DAG.getConstant(1ULL << ShiftAmt, NVT)); 3019456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Tmp3, True, False); 3020456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3021d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } else { 3022d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman assert(0 && "Do not know how to expand FP_TO_SINT yet!"); 3023d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } 3024d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman break; 30251618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner } 3026fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 30276af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng case Expand: { 30286af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng // Convert f32 / f64 to i32 / i64. 30296af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng MVT::ValueType VT = Op.getValueType(); 303056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 30316af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng switch (Node->getOpcode()) { 30326af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng case ISD::FP_TO_SINT: 30336af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng if (Node->getOperand(0).getValueType() == MVT::f32) 303456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::i32) 303556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::FPTOSINT_F32_I32 : RTLIB::FPTOSINT_F32_I64; 30366af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng else 303756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::i32) 303856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::FPTOSINT_F64_I32 : RTLIB::FPTOSINT_F64_I64; 30396af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng break; 30406af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng case ISD::FP_TO_UINT: 30416af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng if (Node->getOperand(0).getValueType() == MVT::f32) 304256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::i32) 304356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::FPTOUINT_F32_I32 : RTLIB::FPTOSINT_F32_I64; 30446af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng else 304556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::i32) 304656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::FPTOUINT_F64_I32 : RTLIB::FPTOSINT_F64_I64; 30476af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng break; 30486af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng default: assert(0 && "Unreachable!"); 30496af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng } 30506af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng SDOperand Dummy; 305156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, 305256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Dummy); 30536af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng break; 30546af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng } 3055fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 3056c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3057c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, LegalizeOp(Tmp1)); 3058c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); 3059fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3060fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3061fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3062d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 306313c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 30643e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ZERO_EXTEND: 30653e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SIGN_EXTEND: 306603c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::FP_EXTEND: 306703c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::FP_ROUND: 30683e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3069456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case Expand: assert(0 && "Shouldn't need to expand other operators here!"); 30703e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 30713e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3072c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 30733e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 307403c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Promote: 307503c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (Node->getOpcode()) { 307613c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 3077c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3078c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Tmp1); 307913c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner break; 30801713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner case ISD::ZERO_EXTEND: 30811713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = PromoteOp(Node->getOperand(0)); 308213c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Result); 308323993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 308423993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 308503c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 308603c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::SIGN_EXTEND: 30871713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = PromoteOp(Node->getOperand(0)); 308813c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Result); 30891713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 309015e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result, 309115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 30921713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner break; 309303c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::FP_EXTEND: 30941713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = PromoteOp(Node->getOperand(0)); 30951713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner if (Result.getValueType() != Op.getValueType()) 30961713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner // Dynamically dead while we have only 2 FP types. 30971713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = DAG.getNode(ISD::FP_EXTEND, Op.getValueType(), Result); 30981713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner break; 309903c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::FP_ROUND: 3100f8161d83f0201a32a33a0c875eb43df81d8586abChris Lattner Result = PromoteOp(Node->getOperand(0)); 3101f8161d83f0201a32a33a0c875eb43df81d8586abChris Lattner Result = DAG.getNode(Node->getOpcode(), Op.getValueType(), Result); 3102f8161d83f0201a32a33a0c875eb43df81d8586abChris Lattner break; 310303c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 31043e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 31053e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 31060f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::FP_ROUND_INREG: 310723993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner case ISD::SIGN_EXTEND_INREG: { 31080f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 310915e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner MVT::ValueType ExtraVT = cast<VTSDNode>(Node->getOperand(1))->getVT(); 311045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner 311145b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // If this operation is not supported, convert it to a shl/shr or load/store 311245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // pair. 311355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), ExtraVT)) { 311455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action not supported for this op yet!"); 311555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Legal: 3116c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 311755ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 311855ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Expand: 311945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // If this is an integer extend and shifts are supported, do that. 312023993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner if (Node->getOpcode() == ISD::SIGN_EXTEND_INREG) { 312145b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // NOTE: we could fall back on load/store here too for targets without 312245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // SAR. However, it is doubtful that any exist. 312345b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner unsigned BitsDiff = MVT::getSizeInBits(Node->getValueType(0)) - 312445b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner MVT::getSizeInBits(ExtraVT); 312527ff112948d059524e5f4ebe249a1da0b7c710e8Chris Lattner SDOperand ShiftCst = DAG.getConstant(BitsDiff, TLI.getShiftAmountTy()); 312645b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result = DAG.getNode(ISD::SHL, Node->getValueType(0), 312745b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Node->getOperand(0), ShiftCst); 312845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result = DAG.getNode(ISD::SRA, Node->getValueType(0), 312945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result, ShiftCst); 313045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } else if (Node->getOpcode() == ISD::FP_ROUND_INREG) { 31312d84c4c7b314242346dea1a7f48563333476a4d5Jim Laskey // The only way we can lower this is to turn it into a TRUNCSTORE, 313245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // EXTLOAD pair, targetting a temporary location (a stack slot). 313345b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner 313445b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // NOTE: there is a choice here between constantly creating new stack 313545b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // slots and always reusing the same one. We currently always create 313645b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // new ones, as reuse may inhibit scheduling. 313745b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner const Type *Ty = MVT::getTypeForValueType(ExtraVT); 313844b2c5098f5cf766b4eff43d9eb0d8a9a143e7d8Chris Lattner uint64_t TySize = TLI.getTargetData()->getTypeSize(Ty); 3139d2b7cec527a0efa552628378ebca7a8ca63bb45dChris Lattner unsigned Align = TLI.getTargetData()->getPrefTypeAlignment(Ty); 314045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner MachineFunction &MF = DAG.getMachineFunction(); 3141edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman int SSFI = 314244b2c5098f5cf766b4eff43d9eb0d8a9a143e7d8Chris Lattner MF.getFrameInfo()->CreateStackObject(TySize, Align); 314345b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner SDOperand StackSlot = DAG.getFrameIndex(SSFI, TLI.getPointerTy()); 31448b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getTruncStore(DAG.getEntryNode(), Node->getOperand(0), 31458b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng StackSlot, NULL, 0, ExtraVT); 31465f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner Result = DAG.getExtLoad(ISD::EXTLOAD, Node->getValueType(0), 3147466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result, StackSlot, NULL, 0, ExtraVT); 314845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } else { 314945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner assert(0 && "Unknown op"); 315045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 315155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 315245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 31530f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner break; 31543e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 315545b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 3156456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 31574ddd283f6928fc337c1bf3277566d7b31526e8d9Chris Lattner assert(Result.getValueType() == Op.getValueType() && 31584ddd283f6928fc337c1bf3277566d7b31526e8d9Chris Lattner "Bad legalization!"); 31594ddd283f6928fc337c1bf3277566d7b31526e8d9Chris Lattner 3160456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Make sure that the generated code is itself legal. 3161456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Result != Op) 3162456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Result); 31633e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 316445982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // Note that LegalizeOp may be reentered even from single-use nodes, which 316545982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // means that we always must cache transformed nodes. 316645982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner AddLegalizedOperand(Op, Result); 31673e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner return Result; 31683e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 31693e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 31708b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// PromoteOp - Given an operation that produces a value in an invalid type, 31718b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// promote it to compute the value into a larger type. The produced value will 31728b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// have the correct bits for the low portion of the register, but no guarantee 31738b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// is made about the top bits: it may be zero, sign-extended, or garbage. 317403c8546ec57523970874917854a2fb77b1ff598eChris LattnerSDOperand SelectionDAGLegalize::PromoteOp(SDOperand Op) { 317503c8546ec57523970874917854a2fb77b1ff598eChris Lattner MVT::ValueType VT = Op.getValueType(); 317671c42a0190300a8903aaea80467b88f15f327ea9Chris Lattner MVT::ValueType NVT = TLI.getTypeToTransformTo(VT); 317703c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(getTypeAction(VT) == Promote && 317803c8546ec57523970874917854a2fb77b1ff598eChris Lattner "Caller should expand or legalize operands that are not promotable!"); 317903c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(NVT > VT && MVT::isInteger(NVT) == MVT::isInteger(VT) && 318003c8546ec57523970874917854a2fb77b1ff598eChris Lattner "Cannot promote to smaller type!"); 318103c8546ec57523970874917854a2fb77b1ff598eChris Lattner 318203c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDOperand Tmp1, Tmp2, Tmp3; 318303c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDOperand Result; 318403c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDNode *Node = Op.Val; 318503c8546ec57523970874917854a2fb77b1ff598eChris Lattner 318640030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner DenseMap<SDOperand, SDOperand>::iterator I = PromotedNodes.find(Op); 31876fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner if (I != PromotedNodes.end()) return I->second; 318845982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner 318903c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (Node->getOpcode()) { 3190d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner case ISD::CopyFromReg: 3191d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner assert(0 && "CopyFromReg must be legal!"); 319203c8546ec57523970874917854a2fb77b1ff598eChris Lattner default: 3193e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 319439833585556a69de12053ca1e104fe7edfd86cbdDan Gohman cerr << "NODE: "; Node->dump(&DAG); cerr << "\n"; 3195e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 319603c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(0 && "Do not know how to promote this operator!"); 319703c8546ec57523970874917854a2fb77b1ff598eChris Lattner abort(); 3198fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: 3199fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Result = DAG.getNode(ISD::UNDEF, NVT); 3200fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 320103c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::Constant: 3202ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner if (VT != MVT::i1) 3203ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND, NVT, Op); 3204ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner else 3205ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner Result = DAG.getNode(ISD::ZERO_EXTEND, NVT, Op); 320603c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(isa<ConstantSDNode>(Result) && "Didn't constant fold zext?"); 320703c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 320803c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::ConstantFP: 320903c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = DAG.getNode(ISD::FP_EXTEND, NVT, Op); 321003c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(isa<ConstantFPSDNode>(Result) && "Didn't constant fold fp_extend?"); 321103c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 3212ef5cd1d3cf7d0b20987a545fcd2d0af2bfe6c422Chris Lattner 321382fbfb6984c1feb7d44a077ac2dc031f4a950005Chris Lattner case ISD::SETCC: 3214c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner assert(isTypeLegal(TLI.getSetCCResultTy()) && "SetCC type is not legal??"); 32157cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Result = DAG.getNode(ISD::SETCC, TLI.getSetCCResultTy(),Node->getOperand(0), 32167cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Node->getOperand(1), Node->getOperand(2)); 321782fbfb6984c1feb7d44a077ac2dc031f4a950005Chris Lattner break; 3218fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner 321903c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::TRUNCATE: 322003c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 322103c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Legal: 322203c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = LegalizeOp(Node->getOperand(0)); 322303c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(Result.getValueType() >= NVT && 322403c8546ec57523970874917854a2fb77b1ff598eChris Lattner "This truncation doesn't make sense!"); 322503c8546ec57523970874917854a2fb77b1ff598eChris Lattner if (Result.getValueType() > NVT) // Truncate to NVT instead of VT 322603c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, NVT, Result); 322703c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 3228e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner case Promote: 3229e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner // The truncation is not required, because we don't guarantee anything 3230e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner // about high bits anyway. 3231e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner Result = PromoteOp(Node->getOperand(0)); 3232e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner break; 323303c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Expand: 323479e46acd35df36477029e9f534ab1a366a98df56Nate Begeman ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 323579e46acd35df36477029e9f534ab1a366a98df56Nate Begeman // Truncate the low part of the expanded value to the result type 3236e21c305ed85b2be4a27784ba52471f6b68fdd255Chris Lattner Result = DAG.getNode(ISD::TRUNCATE, NVT, Tmp1); 323703c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 323803c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 32398b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SIGN_EXTEND: 32408b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::ZERO_EXTEND: 324113c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 32428b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 32438b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: assert(0 && "BUG: Smaller reg should have been promoted!"); 32448b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 32458b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Input is legal? Just do extend all the way to the larger type. 3246456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Node->getOperand(0)); 32478b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 32488b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 32498b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Promote the reg if it's smaller. 32508b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = PromoteOp(Node->getOperand(0)); 32518b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The high bits are not guaranteed to be anything. Insert an extend. 32528b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (Node->getOpcode() == ISD::SIGN_EXTEND) 3253595dc5408ad809b9a9a417db275c43242e54b8dcChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Result, 325415e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 325513c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner else if (Node->getOpcode() == ISD::ZERO_EXTEND) 325623993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 325723993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 32588b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 32598b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 32608b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 326135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: 326235481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = ExpandBIT_CONVERT(Node->getValueType(0), Node->getOperand(0)); 326335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = PromoteOp(Result); 326435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 326535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 32668b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_EXTEND: 32678b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(0 && "Case not implemented. Dynamically dead with 2 FP types!"); 32688b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_ROUND: 32698b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 32708b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: assert(0 && "BUG: Cannot expand FP regs!"); 32718b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: assert(0 && "Unreachable with 2 FP types!"); 32728b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 32738b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Input is legal? Do an FP_ROUND_INREG. 3274456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Node->getOperand(0), 327515e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 32768b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 32778b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 32788b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 32798b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 32808b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SINT_TO_FP: 32818b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UINT_TO_FP: 32828b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 32838b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 328477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // No extra round required here. 3285456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Node->getOperand(0)); 32868b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 32878b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 32888b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 32898b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = PromoteOp(Node->getOperand(0)); 32908b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (Node->getOpcode() == ISD::SINT_TO_FP) 32918b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 329215e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result, 329315e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 32948b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner else 329523993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 329623993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 329777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // No extra round required here. 329877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Result); 32998b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 33008b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: 330177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Result = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, NVT, 330277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Node->getOperand(0)); 330377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // Round if we cannot tolerate excess precision. 330477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner if (NoExcessFPPrecision) 330515e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 330615e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 330777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner break; 33088b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 33098b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 33108b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 33115e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner case ISD::SIGN_EXTEND_INREG: 33125e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Result = PromoteOp(Node->getOperand(0)); 33135e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Result, 33145e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Node->getOperand(1)); 33155e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner break; 33168b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_TO_SINT: 33178b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_TO_UINT: 33188b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 33198b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 33200b1b9dcf22745b533562134c2f0472098fe085fdEvan Cheng case Expand: 3321456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Node->getOperand(0); 33228b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 33238b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 33248b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input result is prerounded, so we don't have to do anything 33258b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // special. 33268b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 33278b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 33288b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 3329d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // If we're promoting a UINT to a larger size, check to see if the new node 3330d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // will be legal. If it isn't, check to see if FP_TO_SINT is legal, since 3331d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // we can use that instead. This allows us to generate better code for 3332d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // FP_TO_UINT for small destination sizes on targets where FP_TO_UINT is not 3333d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // legal, such as PowerPC. 3334d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman if (Node->getOpcode() == ISD::FP_TO_UINT && 3335c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner !TLI.isOperationLegal(ISD::FP_TO_UINT, NVT) && 3336b7f6ef12f682c7068ca7513e088177a0d1046b35Nate Begeman (TLI.isOperationLegal(ISD::FP_TO_SINT, NVT) || 3337b7f6ef12f682c7068ca7513e088177a0d1046b35Nate Begeman TLI.getOperationAction(ISD::FP_TO_SINT, NVT)==TargetLowering::Custom)){ 3338d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Result = DAG.getNode(ISD::FP_TO_SINT, NVT, Tmp1); 3339d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } else { 3340d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 3341d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } 33428b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 33438b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 33442c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FABS: 33452c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FNEG: 33462c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 33472c8086f4b9916b2d02842be5e375276023225fbaChris Lattner assert(Tmp1.getValueType() == NVT); 33482c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 33492c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // NOTE: we do not have to do any extra rounding here for 33502c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // NoExcessFPPrecision, because we know the input will have the appropriate 33512c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // precision, and these operations don't modify precision at all. 33522c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 33532c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 3354da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSQRT: 3355da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSIN: 3356da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FCOS: 3357da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3358da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner assert(Tmp1.getValueType() == NVT); 3359da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 3360456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (NoExcessFPPrecision) 336115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 336215e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 3363da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner break; 3364da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner 33658b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner case ISD::FPOWI: { 33668b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner // Promote f32 powi to f64 powi. Note that this could insert a libcall 33678b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner // directly as well, which may be better. 33688b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 33698b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner assert(Tmp1.getValueType() == NVT); 33708b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner Result = DAG.getNode(ISD::FPOWI, NVT, Tmp1, Node->getOperand(1)); 33718b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner if (NoExcessFPPrecision) 33728b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 33738b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner DAG.getValueType(VT)); 33748b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner break; 33758b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner } 33768b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner 337703c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::AND: 337803c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::OR: 337903c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::XOR: 33800f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::ADD: 33818b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SUB: 33820f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::MUL: 33830f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner // The input may have strange things in the top bits of the registers, but 338401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // these operations don't care. They may have weird bits going out, but 33850f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner // that too is okay if they are integer operations. 33860f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 33870f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 33880f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner assert(Tmp1.getValueType() == NVT && Tmp2.getValueType() == NVT); 33890f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 339001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner break; 339101b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FADD: 339201b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FSUB: 339301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FMUL: 339401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 339501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 339601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner assert(Tmp1.getValueType() == NVT && Tmp2.getValueType() == NVT); 339701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 339801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner 339901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // Floating point operations will give excess precision that we may not be 340001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // able to tolerate. If we DO allow excess precision, just leave it, 340101b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // otherwise excise it. 34028b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // FIXME: Why would we need to round FP ops more than integer ones? 34038b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Is Round(Add(Add(A,B),C)) != Round(Add(Round(Add(A,B)), C)) 340401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner if (NoExcessFPPrecision) 340515e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 340615e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 34070f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner break; 34080f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner 34098b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SDIV: 34108b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SREM: 34118b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // These operators require that their input be sign extended. 34128b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 34138b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 34148b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (MVT::isInteger(NVT)) { 341515e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 341615e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 341715e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp2 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp2, 341815e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 34198b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 34208b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 34218b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 34228b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Perform FP_ROUND: this is probably overly pessimistic. 34238b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (MVT::isFloatingPoint(NVT) && NoExcessFPPrecision) 342415e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 342515e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 34268b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 342701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FDIV: 342801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FREM: 3429a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case ISD::FCOPYSIGN: 343001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // These operators require that their input be fp extended. 3431ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman switch (getTypeAction(Node->getOperand(0).getValueType())) { 3432ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Legal: 3433ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); 3434ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman break; 3435ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Promote: 3436ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman Tmp1 = PromoteOp(Node->getOperand(0)); 3437ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman break; 3438ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Expand: 3439ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman assert(0 && "not implemented"); 3440ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman } 3441ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman switch (getTypeAction(Node->getOperand(1).getValueType())) { 3442ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Legal: 3443ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); 3444ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman break; 3445ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Promote: 3446ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman Tmp2 = PromoteOp(Node->getOperand(1)); 3447ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman break; 3448ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman case Expand: 3449ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman assert(0 && "not implemented"); 3450ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman } 345101b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 345201b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner 345301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // Perform FP_ROUND: this is probably overly pessimistic. 3454a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner if (NoExcessFPPrecision && Node->getOpcode() != ISD::FCOPYSIGN) 345501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 345601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner DAG.getValueType(VT)); 345701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner break; 34588b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 34598b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UDIV: 34608b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UREM: 34618b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // These operators require that their input be zero extended. 34628b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 34638b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 34648b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(MVT::isInteger(NVT) && "Operators don't apply to FP!"); 346523993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 346623993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp2 = DAG.getZeroExtendInReg(Tmp2, VT); 34678b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 34688b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 34698b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 34708b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SHL: 34718b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3472456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SHL, NVT, Tmp1, Node->getOperand(1)); 34738b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 34748b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SRA: 34758b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input value must be properly sign extended. 34768b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 347715e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 347815e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 3479456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRA, NVT, Tmp1, Node->getOperand(1)); 34808b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 34818b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SRL: 34828b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input value must be properly zero extended. 34838b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 348423993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 3485456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRL, NVT, Tmp1, Node->getOperand(1)); 34868b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 34870aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman 34880aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman case ISD::VAARG: 3489456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Node->getOperand(0); // Get the chain. 3490456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = Node->getOperand(1); // Get the pointer. 34910aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman if (TLI.getOperationAction(ISD::VAARG, VT) == TargetLowering::Custom) { 34920aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Tmp3 = DAG.getVAArg(VT, Tmp1, Tmp2, Node->getOperand(2)); 34930aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Result = TLI.CustomPromoteOperation(Tmp3, DAG); 34940aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman } else { 3495466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SrcValueSDNode *SV = cast<SrcValueSDNode>(Node->getOperand(2)); 34960aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman SDOperand VAList = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp2, 3497466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SV->getValue(), SV->getOffset()); 34980aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Increment the pointer, VAList, to the next vaarg 34990aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Tmp3 = DAG.getNode(ISD::ADD, TLI.getPointerTy(), VAList, 35000aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman DAG.getConstant(MVT::getSizeInBits(VT)/8, 35010aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman TLI.getPointerTy())); 35020aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Store the incremented VAList to the legalized pointer 35038b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = DAG.getStore(VAList.getValue(1), Tmp3, Tmp2, SV->getValue(), 35048b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SV->getOffset()); 35050aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Load the actual argument out of the pointer VAList 3506466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getExtLoad(ISD::EXTLOAD, NVT, Tmp3, VAList, NULL, 0, VT); 35070aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman } 35080aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Remember that we legalized the chain. 3509456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 35100aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman break; 35110aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman 3512466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case ISD::LOAD: { 3513466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LoadSDNode *LD = cast<LoadSDNode>(Node); 351462f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng ISD::LoadExtType ExtType = ISD::isNON_EXTLoad(Node) 351562f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng ? ISD::EXTLOAD : LD->getExtensionType(); 351662f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng Result = DAG.getExtLoad(ExtType, NVT, 351762f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng LD->getChain(), LD->getBasePtr(), 351855b5708b6bbffc79cf133c31faa51d144bfc5d4aChris Lattner LD->getSrcValue(), LD->getSrcValueOffset(), 35192e49f090f9656af7d5ed4d5c4e9fa26af59c7233Evan Cheng LD->getLoadedVT()); 35204c8f8f0481b26818d7810a6a585e7ecf52973e93Chris Lattner // Remember that we legalized the chain. 3521456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 35224c8f8f0481b26818d7810a6a585e7ecf52973e93Chris Lattner break; 3523466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 352403c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::SELECT: 352503c8546ec57523970874917854a2fb77b1ff598eChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Legalize the op0 352603c8546ec57523970874917854a2fb77b1ff598eChris Lattner Tmp3 = PromoteOp(Node->getOperand(2)); // Legalize the op1 3527456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), Tmp2, Tmp3); 352803c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 35299373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case ISD::SELECT_CC: 35309373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2 = PromoteOp(Node->getOperand(2)); // True 35319373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp3 = PromoteOp(Node->getOperand(3)); // False 35329373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 3533456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Node->getOperand(1), Tmp2, Tmp3, Node->getOperand(4)); 35349373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 3535d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: 3536d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = Node->getOperand(0); 3537d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 3538d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = DAG.getNode(ISD::BSWAP, NVT, Tmp1); 3539d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Result = DAG.getNode(ISD::SRL, NVT, Tmp1, 3540b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(NVT) - 3541b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman MVT::getSizeInBits(VT), 3542d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman TLI.getShiftAmountTy())); 3543d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 3544fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTPOP: 3545fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTTZ: 3546fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTLZ: 3547456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Zero extend the argument 3548456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Node->getOperand(0)); 3549fecf095292991bdf9396fec474011446107f9813Andrew Lenharth // Perform the larger operation, then subtract if needed. 3550fecf095292991bdf9396fec474011446107f9813Andrew Lenharth Tmp1 = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 3551456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch(Node->getOpcode()) { 3552fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTPOP: 3553fecf095292991bdf9396fec474011446107f9813Andrew Lenharth Result = Tmp1; 3554fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 3555fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTTZ: 3556456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // if Tmp1 == sizeinbits(NVT) then Tmp1 = sizeinbits(Old VT) 3557d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), Tmp1, 3558b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(NVT), NVT), 3559b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman ISD::SETEQ); 356000b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SELECT, NVT, Tmp2, 3561b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(VT), NVT), Tmp1); 3562fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 3563fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTLZ: 3564fecf095292991bdf9396fec474011446107f9813Andrew Lenharth //Tmp1 = Tmp1 - (sizeinbits(NVT) - sizeinbits(Old VT)) 356500b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SUB, NVT, Tmp1, 3566b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(NVT) - 3567b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman MVT::getSizeInBits(VT), NVT)); 3568fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 3569fecf095292991bdf9396fec474011446107f9813Andrew Lenharth } 3570fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 35711597221eace1c53ce5f84a7018397497d11a8393Chris Lattner case ISD::VEXTRACT_VECTOR_ELT: 35721597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Result = PromoteOp(LowerVEXTRACT_VECTOR_ELT(Op)); 35731597221eace1c53ce5f84a7018397497d11a8393Chris Lattner break; 35746595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman case ISD::VEXTRACT_SUBVECTOR: 35756595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Result = PromoteOp(LowerVEXTRACT_SUBVECTOR(Op)); 35766595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 35774aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner case ISD::EXTRACT_VECTOR_ELT: 35784aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner Result = PromoteOp(ExpandEXTRACT_VECTOR_ELT(Op)); 35794aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner break; 358003c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 358103c8546ec57523970874917854a2fb77b1ff598eChris Lattner 358203c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(Result.Val && "Didn't set a result!"); 3583456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 3584456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Make sure the result is itself legal. 3585456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Result); 3586456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 3587456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Remember that we promoted this! 358803c8546ec57523970874917854a2fb77b1ff598eChris Lattner AddPromotedOperand(Op, Result); 358903c8546ec57523970874917854a2fb77b1ff598eChris Lattner return Result; 359003c8546ec57523970874917854a2fb77b1ff598eChris Lattner} 35913e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 35921597221eace1c53ce5f84a7018397497d11a8393Chris Lattner/// LowerVEXTRACT_VECTOR_ELT - Lower a VEXTRACT_VECTOR_ELT operation into a 35931597221eace1c53ce5f84a7018397497d11a8393Chris Lattner/// EXTRACT_VECTOR_ELT operation, to memory operations, or to scalar code based 35941597221eace1c53ce5f84a7018397497d11a8393Chris Lattner/// on the vector type. The return type of this matches the element type of the 35951597221eace1c53ce5f84a7018397497d11a8393Chris Lattner/// vector, which may not be legal for the target. 35961597221eace1c53ce5f84a7018397497d11a8393Chris LattnerSDOperand SelectionDAGLegalize::LowerVEXTRACT_VECTOR_ELT(SDOperand Op) { 35971597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // We know that operand #0 is the Vec vector. If the index is a constant 35981597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // or if the invec is a supported hardware type, we can use it. Otherwise, 35991597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // lower to a store then an indexed load. 36001597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SDOperand Vec = Op.getOperand(0); 36011597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SDOperand Idx = LegalizeOp(Op.getOperand(1)); 36021597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 36031597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SDNode *InVal = Vec.Val; 36041597221eace1c53ce5f84a7018397497d11a8393Chris Lattner unsigned NumElems = cast<ConstantSDNode>(*(InVal->op_end()-2))->getValue(); 36051597221eace1c53ce5f84a7018397497d11a8393Chris Lattner MVT::ValueType EVT = cast<VTSDNode>(*(InVal->op_end()-1))->getVT(); 36061597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 36071597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // Figure out if there is a Packed type corresponding to this Vector 3608ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // type. If so, convert to the vector type. 36091597221eace1c53ce5f84a7018397497d11a8393Chris Lattner MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 36101597221eace1c53ce5f84a7018397497d11a8393Chris Lattner if (TVT != MVT::Other && TLI.isTypeLegal(TVT)) { 36111597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // Turn this into a packed extract_vector_elt operation. 36121597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Vec = PackVectorOp(Vec, TVT); 36131597221eace1c53ce5f84a7018397497d11a8393Chris Lattner return DAG.getNode(ISD::EXTRACT_VECTOR_ELT, Op.getValueType(), Vec, Idx); 36141597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } else if (NumElems == 1) { 36151597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // This must be an access of the only element. Return it. 36161597221eace1c53ce5f84a7018397497d11a8393Chris Lattner return PackVectorOp(Vec, EVT); 36171597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } else if (ConstantSDNode *CIdx = dyn_cast<ConstantSDNode>(Idx)) { 36181597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SDOperand Lo, Hi; 36191597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SplitVectorOp(Vec, Lo, Hi); 36201597221eace1c53ce5f84a7018397497d11a8393Chris Lattner if (CIdx->getValue() < NumElems/2) { 36211597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Vec = Lo; 36221597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } else { 36231597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Vec = Hi; 36241597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Idx = DAG.getConstant(CIdx->getValue() - NumElems/2, Idx.getValueType()); 36251597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } 36261597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 36271597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // It's now an extract from the appropriate high or low part. Recurse. 36281597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 36291597221eace1c53ce5f84a7018397497d11a8393Chris Lattner return LowerVEXTRACT_VECTOR_ELT(Op); 36301597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } else { 36311597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // Variable index case for extract element. 36321597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // FIXME: IMPLEMENT STORE/LOAD lowering. Need alignment of stack slot!! 36331597221eace1c53ce5f84a7018397497d11a8393Chris Lattner assert(0 && "unimp!"); 36341597221eace1c53ce5f84a7018397497d11a8393Chris Lattner return SDOperand(); 36351597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } 36361597221eace1c53ce5f84a7018397497d11a8393Chris Lattner} 36371597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 36386595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman/// LowerVEXTRACT_SUBVECTOR - Lower a VEXTRACT_SUBVECTOR operation. For now 36396595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman/// we assume the operation can be split if it is not already legal. 36406595635175764f402e7a5e53216c8d46bdce8c28Dan GohmanSDOperand SelectionDAGLegalize::LowerVEXTRACT_SUBVECTOR(SDOperand Op) { 36416595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // We know that operand #0 is the Vec vector. For now we assume the index 36426595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // is a constant and that the extracted result is a supported hardware type. 36436595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SDOperand Vec = Op.getOperand(0); 36446595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SDOperand Idx = LegalizeOp(Op.getOperand(1)); 36456595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 36466595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SDNode *InVal = Vec.Val; 36476595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman unsigned NumElems = cast<ConstantSDNode>(*(InVal->op_end()-2))->getValue(); 36486595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 36496595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman if (NumElems == MVT::getVectorNumElements(Op.getValueType())) { 36506595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // This must be an access of the desired vector length. Return it. 36516595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman return PackVectorOp(Vec, Op.getValueType()); 36526595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } 36536595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 36546595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman ConstantSDNode *CIdx = cast<ConstantSDNode>(Idx); 36556595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SDOperand Lo, Hi; 36566595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SplitVectorOp(Vec, Lo, Hi); 36576595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman if (CIdx->getValue() < NumElems/2) { 36586595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Vec = Lo; 36596595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } else { 36606595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Vec = Hi; 36616595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Idx = DAG.getConstant(CIdx->getValue() - NumElems/2, Idx.getValueType()); 36626595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } 36636595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 36646595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // It's now an extract from the appropriate high or low part. Recurse. 36656595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 36666595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman return LowerVEXTRACT_SUBVECTOR(Op); 36676595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman} 36686595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 36694aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner/// ExpandEXTRACT_VECTOR_ELT - Expand an EXTRACT_VECTOR_ELT operation into 36704aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner/// memory traffic. 36714aab2f4ab50d2b04dc559c7b197f1de7612c896bChris LattnerSDOperand SelectionDAGLegalize::ExpandEXTRACT_VECTOR_ELT(SDOperand Op) { 36724aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner SDOperand Vector = Op.getOperand(0); 36734aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner SDOperand Idx = Op.getOperand(1); 36744aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner 36754aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner // If the target doesn't support this, store the value to a temporary 36764aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner // stack slot, then LOAD the scalar element back out. 36774aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner SDOperand StackPtr = CreateStackTemporary(Vector.getValueType()); 36788b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDOperand Ch = DAG.getStore(DAG.getEntryNode(), Vector, StackPtr, NULL, 0); 36794aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner 36804aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner // Add the offset to the index. 36814aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner unsigned EltSize = MVT::getSizeInBits(Op.getValueType())/8; 36824aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner Idx = DAG.getNode(ISD::MUL, Idx.getValueType(), Idx, 36834aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner DAG.getConstant(EltSize, Idx.getValueType())); 36844aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner StackPtr = DAG.getNode(ISD::ADD, Idx.getValueType(), Idx, StackPtr); 36854aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner 3686466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return DAG.getLoad(Op.getValueType(), Ch, StackPtr, NULL, 0); 36874aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner} 36884aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner 36891597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 3690750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// LegalizeSetCCOperands - Attempts to create a legal LHS and RHS for a SETCC 3691750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// with condition CC on the current target. This usually involves legalizing 3692750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// or promoting the arguments. In the case where LHS and RHS must be expanded, 3693750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// there may be no choice but to create a new SetCC node to represent the 3694750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// legalized value of setcc lhs, rhs. In this case, the value is returned in 3695750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// LHS, and the SDOperand returned in RHS has a nil SDNode value. 3696750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begemanvoid SelectionDAGLegalize::LegalizeSetCCOperands(SDOperand &LHS, 3697750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand &RHS, 3698750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand &CC) { 3699750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand Tmp1, Tmp2, Result; 3700750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 3701750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (getTypeAction(LHS.getValueType())) { 3702750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case Legal: 3703750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = LegalizeOp(LHS); // LHS 3704750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = LegalizeOp(RHS); // RHS 3705750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 3706750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case Promote: 3707750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = PromoteOp(LHS); // LHS 3708750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = PromoteOp(RHS); // RHS 3709750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 3710750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If this is an FP compare, the operands have already been extended. 3711750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (MVT::isInteger(LHS.getValueType())) { 3712750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman MVT::ValueType VT = LHS.getValueType(); 3713750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman MVT::ValueType NVT = TLI.getTypeToTransformTo(VT); 3714750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 3715750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Otherwise, we have to insert explicit sign or zero extends. Note 3716750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // that we could insert sign extends for ALL conditions, but zero extend 3717750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // is cheaper on many machines (an AND instead of two shifts), so prefer 3718750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // it. 3719750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (cast<CondCodeSDNode>(CC)->get()) { 3720750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "Unknown integer comparison!"); 3721750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETEQ: 3722750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETNE: 3723750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGE: 3724750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGT: 3725750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULE: 3726750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULT: 3727750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // ALL of these operations will work if we either sign or zero extend 3728750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the operands (including the unsigned comparisons!). Zero extend is 3729750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // usually a simpler/cheaper operation, so prefer it. 3730750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 3731750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getZeroExtendInReg(Tmp2, VT); 3732750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 3733750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGE: 3734750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGT: 3735750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLT: 3736750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLE: 3737750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 3738750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman DAG.getValueType(VT)); 3739750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp2, 3740750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman DAG.getValueType(VT)); 3741750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 3742750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 3743750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 3744750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 37452b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case Expand: { 37462b49c500838666dd0186d021389d4dd70ffda240Evan Cheng MVT::ValueType VT = LHS.getValueType(); 37472b49c500838666dd0186d021389d4dd70ffda240Evan Cheng if (VT == MVT::f32 || VT == MVT::f64) { 37482b49c500838666dd0186d021389d4dd70ffda240Evan Cheng // Expand into one or more soft-fp libcall(s). 374956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC1, LC2 = RTLIB::UNKNOWN_LIBCALL; 37502b49c500838666dd0186d021389d4dd70ffda240Evan Cheng switch (cast<CondCodeSDNode>(CC)->get()) { 37512b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETEQ: 37522b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOEQ: 375356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OEQ_F32 : RTLIB::OEQ_F64; 37542b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 37552b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETNE: 37562b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUNE: 375756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::UNE_F32 : RTLIB::UNE_F64; 37582b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 37592b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETGE: 37602b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOGE: 376156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OGE_F32 : RTLIB::OGE_F64; 37622b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 37632b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETLT: 37642b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOLT: 376556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OLT_F32 : RTLIB::OLT_F64; 37662b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 37672b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETLE: 37682b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOLE: 376956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OLE_F32 : RTLIB::OLE_F64; 37702b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 37712b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETGT: 37722b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOGT: 377356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OGT_F32 : RTLIB::OGT_F64; 37742b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 37752b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUO: 3776d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::UO_F32 : RTLIB::UO_F64; 3777d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng break; 37782b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETO: 37795efdecc030f1a71cdb5b49d97c6c1c45e68ff731Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::O_F32 : RTLIB::O_F64; 37802b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 37812b49c500838666dd0186d021389d4dd70ffda240Evan Cheng default: 378256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::UO_F32 : RTLIB::UO_F64; 37832b49c500838666dd0186d021389d4dd70ffda240Evan Cheng switch (cast<CondCodeSDNode>(CC)->get()) { 37842b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETONE: 37852b49c500838666dd0186d021389d4dd70ffda240Evan Cheng // SETONE = SETOLT | SETOGT 378656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OLT_F32 : RTLIB::OLT_F64; 37872b49c500838666dd0186d021389d4dd70ffda240Evan Cheng // Fallthrough 37882b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUGT: 378956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OGT_F32 : RTLIB::OGT_F64; 37902b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 37912b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUGE: 379256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OGE_F32 : RTLIB::OGE_F64; 37932b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 37942b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETULT: 379556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OLT_F32 : RTLIB::OLT_F64; 37962b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 37972b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETULE: 379856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OLE_F32 : RTLIB::OLE_F64; 37992b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 380056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::SETUEQ: 380156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OEQ_F32 : RTLIB::OEQ_F64; 380256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 38032b49c500838666dd0186d021389d4dd70ffda240Evan Cheng default: assert(0 && "Unsupported FP setcc!"); 38042b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 38052b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 38062b49c500838666dd0186d021389d4dd70ffda240Evan Cheng 38072b49c500838666dd0186d021389d4dd70ffda240Evan Cheng SDOperand Dummy; 380856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Tmp1 = ExpandLibCall(TLI.getLibcallName(LC1), 380947857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer DAG.getNode(ISD::MERGE_VALUES, VT, LHS, RHS).Val, 3810b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer false /*sign irrelevant*/, Dummy); 38112b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp2 = DAG.getConstant(0, MVT::i32); 3812d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng CC = DAG.getCondCode(TLI.getCmpLibcallCC(LC1)); 381356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng if (LC2 != RTLIB::UNKNOWN_LIBCALL) { 38142b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp1 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultTy(), Tmp1, Tmp2, CC); 381556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LHS = ExpandLibCall(TLI.getLibcallName(LC2), 381647857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer DAG.getNode(ISD::MERGE_VALUES, VT, LHS, RHS).Val, 3817b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer false /*sign irrelevant*/, Dummy); 38182b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp2 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultTy(), LHS, Tmp2, 3819d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng DAG.getCondCode(TLI.getCmpLibcallCC(LC2))); 38202b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp1 = DAG.getNode(ISD::OR, Tmp1.getValueType(), Tmp1, Tmp2); 38212b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp2 = SDOperand(); 38222b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 38232b49c500838666dd0186d021389d4dd70ffda240Evan Cheng LHS = Tmp1; 38242b49c500838666dd0186d021389d4dd70ffda240Evan Cheng RHS = Tmp2; 38252b49c500838666dd0186d021389d4dd70ffda240Evan Cheng return; 38262b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 38272b49c500838666dd0186d021389d4dd70ffda240Evan Cheng 3828750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand LHSLo, LHSHi, RHSLo, RHSHi; 3829750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman ExpandOp(LHS, LHSLo, LHSHi); 38302b49c500838666dd0186d021389d4dd70ffda240Evan Cheng ExpandOp(RHS, RHSLo, RHSHi); 3831750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (cast<CondCodeSDNode>(CC)->get()) { 3832750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETEQ: 3833750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETNE: 3834750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (RHSLo == RHSHi) 3835750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (ConstantSDNode *RHSCST = dyn_cast<ConstantSDNode>(RHSLo)) 3836750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (RHSCST->isAllOnesValue()) { 3837750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Comparison to -1. 3838750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::AND, LHSLo.getValueType(), LHSLo, LHSHi); 3839750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = RHSLo; 3840750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 3841750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 3842750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 3843750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::XOR, LHSLo.getValueType(), LHSLo, RHSLo); 3844750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getNode(ISD::XOR, LHSLo.getValueType(), LHSHi, RHSHi); 3845750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::OR, Tmp1.getValueType(), Tmp1, Tmp2); 3846750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getConstant(0, Tmp1.getValueType()); 3847750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 3848750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: 3849750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If this is a comparison of the sign bit, just look at the top part. 3850750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // X > -1, x < 0 3851750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (ConstantSDNode *CST = dyn_cast<ConstantSDNode>(RHS)) 3852750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if ((cast<CondCodeSDNode>(CC)->get() == ISD::SETLT && 3853750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CST->getValue() == 0) || // X < 0 3854750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman (cast<CondCodeSDNode>(CC)->get() == ISD::SETGT && 3855750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CST->isAllOnesValue())) { // X > -1 3856750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = LHSHi; 3857750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = RHSHi; 3858750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 3859750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 3860750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 3861750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // FIXME: This generated code sucks. 3862750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman ISD::CondCode LowCC; 38632e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng ISD::CondCode CCCode = cast<CondCodeSDNode>(CC)->get(); 38642e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng switch (CCCode) { 3865750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "Unknown integer setcc!"); 3866750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLT: 3867750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULT: LowCC = ISD::SETULT; break; 3868750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGT: 3869750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGT: LowCC = ISD::SETUGT; break; 3870750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLE: 3871750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULE: LowCC = ISD::SETULE; break; 3872750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGE: 3873750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGE: LowCC = ISD::SETUGE; break; 3874750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 3875750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 3876750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Tmp1 = lo(op1) < lo(op2) // Always unsigned comparison 3877750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Tmp2 = hi(op1) < hi(op2) // Signedness depends on operands 3878750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // dest = hi(op1) == hi(op2) ? Tmp1 : Tmp2; 3879750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 3880750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // NOTE: on targets without efficient SELECT of bools, we can always use 3881750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // this identity: (B1 ? B2 : B3) --> (B1 & B2)|(!B1&B3) 38822e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng TargetLowering::DAGCombinerInfo DagCombineInfo(DAG, false, true, NULL); 38832e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp1 = TLI.SimplifySetCC(TLI.getSetCCResultTy(), LHSLo, RHSLo, LowCC, 38842e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng false, DagCombineInfo); 38852e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng if (!Tmp1.Val) 38862e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp1 = DAG.getSetCC(TLI.getSetCCResultTy(), LHSLo, RHSLo, LowCC); 38872e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp2 = TLI.SimplifySetCC(TLI.getSetCCResultTy(), LHSHi, RHSHi, 38882e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng CCCode, false, DagCombineInfo); 38892e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng if (!Tmp2.Val) 38902e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp2 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultTy(), LHSHi, RHSHi, CC); 38912e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng 38922e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng ConstantSDNode *Tmp1C = dyn_cast<ConstantSDNode>(Tmp1.Val); 38932e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng ConstantSDNode *Tmp2C = dyn_cast<ConstantSDNode>(Tmp2.Val); 38942e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng if ((Tmp1C && Tmp1C->getValue() == 0) || 38952e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng (Tmp2C && Tmp2C->getValue() == 0 && 38962e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng (CCCode == ISD::SETLE || CCCode == ISD::SETGE || 38972e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng CCCode == ISD::SETUGE || CCCode == ISD::SETULE)) || 38982e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng (Tmp2C && Tmp2C->getValue() == 1 && 38992e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng (CCCode == ISD::SETLT || CCCode == ISD::SETGT || 39002e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng CCCode == ISD::SETUGT || CCCode == ISD::SETULT))) { 39012e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng // low part is known false, returns high part. 39022e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng // For LE / GE, if high part is known false, ignore the low part. 39032e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng // For LT / GT, if high part is known true, ignore the low part. 39042e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp1 = Tmp2; 39052e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp2 = SDOperand(); 39062e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng } else { 39072e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Result = TLI.SimplifySetCC(TLI.getSetCCResultTy(), LHSHi, RHSHi, 39082e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng ISD::SETEQ, false, DagCombineInfo); 39092e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng if (!Result.Val) 39102e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Result=DAG.getSetCC(TLI.getSetCCResultTy(), LHSHi, RHSHi, ISD::SETEQ); 39112e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Result = LegalizeOp(DAG.getNode(ISD::SELECT, Tmp1.getValueType(), 39122e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Result, Tmp1, Tmp2)); 39132e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp1 = Result; 39142e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp2 = SDOperand(); 39152e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng } 3916750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 3917750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 39182b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 3919750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LHS = Tmp1; 3920750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman RHS = Tmp2; 3921750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman} 3922750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 392335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner/// ExpandBIT_CONVERT - Expand a BIT_CONVERT node into a store/load combination. 3924232348d66fcfe8f42f8b14cfacd2df3d00d2596eChris Lattner/// The resultant code need not be legal. Note that SrcOp is the input operand 3925232348d66fcfe8f42f8b14cfacd2df3d00d2596eChris Lattner/// to the BIT_CONVERT, not the BIT_CONVERT node itself. 392635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris LattnerSDOperand SelectionDAGLegalize::ExpandBIT_CONVERT(MVT::ValueType DestVT, 392735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner SDOperand SrcOp) { 392835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Create the stack frame object. 3929ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand FIPtr = CreateStackTemporary(DestVT); 393035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 393135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Emit a store to the stack slot. 39328b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDOperand Store = DAG.getStore(DAG.getEntryNode(), SrcOp, FIPtr, NULL, 0); 393335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Result is a load from the stack slot. 3934466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return DAG.getLoad(DestVT, Store, FIPtr, NULL, 0); 393535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner} 393635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 39374352cc9e217e4482ad53f5a7b92c3543f569eb6eChris LattnerSDOperand SelectionDAGLegalize::ExpandSCALAR_TO_VECTOR(SDNode *Node) { 39384352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Create a vector sized/aligned stack slot, store the value to element #0, 39394352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // then load the whole vector back out. 39404352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner SDOperand StackPtr = CreateStackTemporary(Node->getValueType(0)); 3941786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng SDOperand Ch = DAG.getStore(DAG.getEntryNode(), Node->getOperand(0), StackPtr, 39428b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng NULL, 0); 3943466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return DAG.getLoad(Node->getValueType(0), Ch, StackPtr, NULL, 0); 39444352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner} 39454352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 39464352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 3947ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner/// ExpandBUILD_VECTOR - Expand a BUILD_VECTOR node on targets that don't 3948ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner/// support the operation, but do support the resultant packed vector type. 3949ce87215131efcc68dcf7fca61055ad783a7aeb0eChris LattnerSDOperand SelectionDAGLegalize::ExpandBUILD_VECTOR(SDNode *Node) { 3950ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 3951ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // If the only non-undef value is the low element, turn this into a 395287100e0b83b808757bf44dabecd1d1048255d1adChris Lattner // SCALAR_TO_VECTOR node. If this is { X, X, X, X }, determine X. 3953033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng unsigned NumElems = Node->getNumOperands(); 3954ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner bool isOnlyLowElement = true; 395587100e0b83b808757bf44dabecd1d1048255d1adChris Lattner SDOperand SplatValue = Node->getOperand(0); 3956033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng std::map<SDOperand, std::vector<unsigned> > Values; 3957033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng Values[SplatValue].push_back(0); 39582eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner bool isConstant = true; 39592eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (!isa<ConstantFPSDNode>(SplatValue) && !isa<ConstantSDNode>(SplatValue) && 39602eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SplatValue.getOpcode() != ISD::UNDEF) 39612eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner isConstant = false; 39622eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 3963033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (unsigned i = 1; i < NumElems; ++i) { 3964033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng SDOperand V = Node->getOperand(i); 396589a1b380a475cbe477e50ff4b94335596b37f21aChris Lattner Values[V].push_back(i); 3966033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (V.getOpcode() != ISD::UNDEF) 3967ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner isOnlyLowElement = false; 3968033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (SplatValue != V) 396987100e0b83b808757bf44dabecd1d1048255d1adChris Lattner SplatValue = SDOperand(0,0); 39702eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 39712eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If this isn't a constant element or an undef, we can't use a constant 39722eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // pool load. 39732eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (!isa<ConstantFPSDNode>(V) && !isa<ConstantSDNode>(V) && 39742eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner V.getOpcode() != ISD::UNDEF) 39752eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner isConstant = false; 3976ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 3977ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 3978ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (isOnlyLowElement) { 3979ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // If the low element is an undef too, then this whole things is an undef. 3980ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (Node->getOperand(0).getOpcode() == ISD::UNDEF) 3981ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner return DAG.getNode(ISD::UNDEF, Node->getValueType(0)); 3982ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Otherwise, turn this into a scalar_to_vector node. 3983ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner return DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), 3984ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Node->getOperand(0)); 3985ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 3986ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 39872eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If all elements are constants, create a load from the constant pool. 3988ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (isConstant) { 3989ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::ValueType VT = Node->getValueType(0); 3990ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner const Type *OpNTy = 3991ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::getTypeForValueType(Node->getOperand(0).getValueType()); 3992ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner std::vector<Constant*> CV; 3993033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (unsigned i = 0, e = NumElems; i != e; ++i) { 3994ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (ConstantFPSDNode *V = 3995ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner dyn_cast<ConstantFPSDNode>(Node->getOperand(i))) { 3996ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner CV.push_back(ConstantFP::get(OpNTy, V->getValue())); 3997ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } else if (ConstantSDNode *V = 3998ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner dyn_cast<ConstantSDNode>(Node->getOperand(i))) { 3999b83eb6447ba155342598f0fabe1f08f5baa9164aReid Spencer CV.push_back(ConstantInt::get(OpNTy, V->getValue())); 4000ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } else { 4001ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner assert(Node->getOperand(i).getOpcode() == ISD::UNDEF); 4002ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner CV.push_back(UndefValue::get(OpNTy)); 4003ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 4004ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 40059d6565a5b1fbc4286d6ee638d8f47a3171a9ed7eReid Spencer Constant *CP = ConstantVector::get(CV); 4006ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand CPIdx = DAG.getConstantPool(CP, TLI.getPointerTy()); 4007466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return DAG.getLoad(VT, DAG.getEntryNode(), CPIdx, NULL, 0); 4008ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 40092eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 40102eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (SplatValue.Val) { // Splat of one value? 40112eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Build the shuffle constant vector: <0, 0, 0, 0> 40122eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner MVT::ValueType MaskVT = 40132eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner MVT::getIntVectorWithNumElements(NumElems); 401451eaa86758338d5935c0eff0469c418b1256aba7Dan Gohman SDOperand Zero = DAG.getConstant(0, MVT::getVectorElementType(MaskVT)); 40152eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner std::vector<SDOperand> ZeroVec(NumElems, Zero); 4016bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand SplatMask = DAG.getNode(ISD::BUILD_VECTOR, MaskVT, 4017bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &ZeroVec[0], ZeroVec.size()); 4018033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 40192eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If the target supports VECTOR_SHUFFLE and this shuffle mask, use it. 40204352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (isShuffleLegal(Node->getValueType(0), SplatMask)) { 40212eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Get the splatted value into the low element of a vector register. 40222eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SDOperand LowValVec = 40232eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), SplatValue); 40242eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 40252eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Return shuffle(LowValVec, undef, <0,0,0,0>) 40262eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner return DAG.getNode(ISD::VECTOR_SHUFFLE, Node->getValueType(0), LowValVec, 40272eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner DAG.getNode(ISD::UNDEF, Node->getValueType(0)), 40282eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SplatMask); 40292eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner } 40302eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner } 40312eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 4032033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // If there are only two unique elements, we may be able to turn this into a 4033033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // vector shuffle. 4034033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (Values.size() == 2) { 4035033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // Build the shuffle constant vector: e.g. <0, 4, 0, 4> 4036033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng MVT::ValueType MaskVT = 4037033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng MVT::getIntVectorWithNumElements(NumElems); 4038033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng std::vector<SDOperand> MaskVec(NumElems); 4039033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng unsigned i = 0; 4040033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (std::map<SDOperand,std::vector<unsigned> >::iterator I=Values.begin(), 4041033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng E = Values.end(); I != E; ++I) { 4042033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (std::vector<unsigned>::iterator II = I->second.begin(), 4043033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng EE = I->second.end(); II != EE; ++II) 404451eaa86758338d5935c0eff0469c418b1256aba7Dan Gohman MaskVec[*II] = DAG.getConstant(i, MVT::getVectorElementType(MaskVT)); 4045033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng i += NumElems; 4046033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 4047bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand ShuffleMask = DAG.getNode(ISD::BUILD_VECTOR, MaskVT, 4048bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &MaskVec[0], MaskVec.size()); 4049033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 4050033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // If the target supports VECTOR_SHUFFLE and this shuffle mask, use it. 40514352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (TLI.isOperationLegal(ISD::SCALAR_TO_VECTOR, Node->getValueType(0)) && 40524352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner isShuffleLegal(Node->getValueType(0), ShuffleMask)) { 4053bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Ops; 4054033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for(std::map<SDOperand,std::vector<unsigned> >::iterator I=Values.begin(), 4055033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng E = Values.end(); I != E; ++I) { 4056033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng SDOperand Op = DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), 4057033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng I->first); 4058033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng Ops.push_back(Op); 4059033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 4060033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng Ops.push_back(ShuffleMask); 4061033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 4062033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // Return shuffle(LoValVec, HiValVec, <0,1,0,1>) 4063bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner return DAG.getNode(ISD::VECTOR_SHUFFLE, Node->getValueType(0), 4064bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &Ops[0], Ops.size()); 4065033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 4066033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 4067ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4068ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Otherwise, we can't handle this case efficiently. Allocate a sufficiently 4069ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // aligned object on the stack, store each element into it, then load 4070ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // the result as a vector. 4071ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::ValueType VT = Node->getValueType(0); 4072ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Create the stack frame object. 4073ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand FIPtr = CreateStackTemporary(VT); 4074ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4075ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Emit a store of each element to the stack slot. 4076bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Stores; 4077ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner unsigned TypeByteSize = 4078ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::getSizeInBits(Node->getOperand(0).getValueType())/8; 4079ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Store (in the right endianness) the elements to memory. 4080ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 4081ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Ignore undef elements. 4082ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (Node->getOperand(i).getOpcode() == ISD::UNDEF) continue; 4083ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4084841c882f5dae8c953ea99b5824108313549cfaf8Chris Lattner unsigned Offset = TypeByteSize*i; 4085ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4086ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand Idx = DAG.getConstant(Offset, FIPtr.getValueType()); 4087ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Idx = DAG.getNode(ISD::ADD, FIPtr.getValueType(), FIPtr, Idx); 4088ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4089786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng Stores.push_back(DAG.getStore(DAG.getEntryNode(), Node->getOperand(i), Idx, 40908b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng NULL, 0)); 4091ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 4092ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4093ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand StoreChain; 4094ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (!Stores.empty()) // Not all undef elements? 4095bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner StoreChain = DAG.getNode(ISD::TokenFactor, MVT::Other, 4096bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &Stores[0], Stores.size()); 4097ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner else 4098ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner StoreChain = DAG.getEntryNode(); 4099ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4100ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Result is a load from the stack slot. 4101466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return DAG.getLoad(VT, StoreChain, FIPtr, NULL, 0); 4102ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner} 4103ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4104ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner/// CreateStackTemporary - Create a stack temporary, suitable for holding the 4105ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner/// specified value type. 4106ce87215131efcc68dcf7fca61055ad783a7aeb0eChris LattnerSDOperand SelectionDAGLegalize::CreateStackTemporary(MVT::ValueType VT) { 4107ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MachineFrameInfo *FrameInfo = DAG.getMachineFunction().getFrameInfo(); 4108ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner unsigned ByteSize = MVT::getSizeInBits(VT)/8; 410958092e35a3368e130438cbc793c8f9dce2e4fe0fChris Lattner const Type *Ty = MVT::getTypeForValueType(VT); 4110d2b7cec527a0efa552628378ebca7a8ca63bb45dChris Lattner unsigned StackAlign = (unsigned)TLI.getTargetData()->getPrefTypeAlignment(Ty); 411158092e35a3368e130438cbc793c8f9dce2e4fe0fChris Lattner int FrameIdx = FrameInfo->CreateStackObject(ByteSize, StackAlign); 4112ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner return DAG.getFrameIndex(FrameIdx, TLI.getPointerTy()); 4113ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner} 4114ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 41155b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattnervoid SelectionDAGLegalize::ExpandShiftParts(unsigned NodeOp, 41165b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand Op, SDOperand Amt, 41175b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand &Lo, SDOperand &Hi) { 41185b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner // Expand the subcomponents. 41195b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand LHSL, LHSH; 41205b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner ExpandOp(Op, LHSL, LHSH); 41215b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 4122bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand Ops[] = { LHSL, LHSH, Amt }; 4123f9f37fc52c444e34bad7846729ae5481a65e0a53Chris Lattner MVT::ValueType VT = LHSL.getValueType(); 4124f9f37fc52c444e34bad7846729ae5481a65e0a53Chris Lattner Lo = DAG.getNode(NodeOp, DAG.getNodeValueTypes(VT, VT), 2, Ops, 3); 41255b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner Hi = Lo.getValue(1); 41265b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner} 41275b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 41285b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 4129e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// ExpandShift - Try to find a clever way to expand this shift operation out to 4130e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// smaller elements. If we can't find a way that is more efficient than a 4131e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// libcall on this target, return false. Otherwise, return true with the 4132e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// low-parts expanded into Lo and Hi. 4133e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattnerbool SelectionDAGLegalize::ExpandShift(unsigned Opc, SDOperand Op,SDOperand Amt, 4134e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner SDOperand &Lo, SDOperand &Hi) { 4135e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner assert((Opc == ISD::SHL || Opc == ISD::SRA || Opc == ISD::SRL) && 4136e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner "This is not a shift!"); 4137f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman 4138e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner MVT::ValueType NVT = TLI.getTypeToTransformTo(Op.getValueType()); 4139f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman SDOperand ShAmt = LegalizeOp(Amt); 4140f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman MVT::ValueType ShTy = ShAmt.getValueType(); 4141f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman unsigned VTBits = MVT::getSizeInBits(Op.getValueType()); 4142f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman unsigned NVTBits = MVT::getSizeInBits(NVT); 4143f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman 4144f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman // Handle the case when Amt is an immediate. Other cases are currently broken 4145f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman // and are disabled. 4146f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (ConstantSDNode *CN = dyn_cast<ConstantSDNode>(Amt.Val)) { 4147f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman unsigned Cst = CN->getValue(); 4148f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman // Expand the incoming operand to be shifted, so that we have its parts 4149f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman SDOperand InL, InH; 4150f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman ExpandOp(Op, InL, InH); 4151f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman switch(Opc) { 4152f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SHL: 4153f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 4154f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 4155f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 4156f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 4157f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 4158f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SHL, NVT, InL, DAG.getConstant(Cst-NVTBits,ShTy)); 4159ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 4160ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = DAG.getConstant(0, NVT); 4161ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Hi = InL; 4162f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 4163f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::SHL, NVT, InL, DAG.getConstant(Cst, ShTy)); 4164f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::OR, NVT, 4165f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(Cst, ShTy)), 4166f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(NVTBits-Cst, ShTy))); 4167f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 4168f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 4169f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SRL: 4170f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 4171f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 4172f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 4173f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 4174f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::SRL, NVT, InH, DAG.getConstant(Cst-NVTBits,ShTy)); 4175f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 4176ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 4177ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = InH; 4178ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Hi = DAG.getConstant(0, NVT); 4179f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 4180f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::OR, NVT, 4181f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(Cst, ShTy)), 4182f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(NVTBits-Cst, ShTy))); 4183f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SRL, NVT, InH, DAG.getConstant(Cst, ShTy)); 4184f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 4185f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 4186f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SRA: 4187f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 4188edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = Lo = DAG.getNode(ISD::SRA, NVT, InH, 4189f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(NVTBits-1, ShTy)); 4190f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 4191edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Lo = DAG.getNode(ISD::SRA, NVT, InH, 4192f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(Cst-NVTBits, ShTy)); 4193edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = DAG.getNode(ISD::SRA, NVT, InH, 4194f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(NVTBits-1, ShTy)); 4195ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 4196ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = InH; 4197edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = DAG.getNode(ISD::SRA, NVT, InH, 4198ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner DAG.getConstant(NVTBits-1, ShTy)); 4199f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 4200f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::OR, NVT, 4201f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(Cst, ShTy)), 4202f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(NVTBits-Cst, ShTy))); 4203f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SRA, NVT, InH, DAG.getConstant(Cst, ShTy)); 4204f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 4205f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 4206f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 4207f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 42080ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 42090ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Okay, the shift amount isn't constant. However, if we can tell that it is 42100ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // >= 32 or < 32, we can still simplify it, without knowing the actual value. 42110ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner uint64_t Mask = NVTBits, KnownZero, KnownOne; 42120ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner TLI.ComputeMaskedBits(Amt, Mask, KnownZero, KnownOne); 42130ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 42140ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // If we know that the high bit of the shift amount is one, then we can do 42150ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // this as a couple of simple shifts. 42160ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner if (KnownOne & Mask) { 42170ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Mask out the high bit, which we know is set. 42180ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Amt = DAG.getNode(ISD::AND, Amt.getValueType(), Amt, 42190ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getConstant(NVTBits-1, Amt.getValueType())); 42200ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 42210ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Expand the incoming operand to be shifted, so that we have its parts 42220ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner SDOperand InL, InH; 42230ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner ExpandOp(Op, InL, InH); 42240ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner switch(Opc) { 42250ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SHL: 42260ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getConstant(0, NVT); // Low part is zero. 42270ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SHL, NVT, InL, Amt); // High part from Lo part. 42280ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 42290ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRL: 42300ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getConstant(0, NVT); // Hi part is zero. 42310ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::SRL, NVT, InH, Amt); // Lo part from Hi part. 42320ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 42330ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRA: 42340ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, InH, // Sign extend high part. 42350ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getConstant(NVTBits-1, Amt.getValueType())); 42360ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::SRA, NVT, InH, Amt); // Lo part from Hi part. 42370ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 42380ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 42390ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 42400ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 42410ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // If we know that the high bit of the shift amount is zero, then we can do 42420ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // this as a couple of simple shifts. 42430ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner if (KnownZero & Mask) { 42440ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Compute 32-amt. 42450ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner SDOperand Amt2 = DAG.getNode(ISD::SUB, Amt.getValueType(), 42460ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getConstant(NVTBits, Amt.getValueType()), 42470ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Amt); 42480ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 42490ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Expand the incoming operand to be shifted, so that we have its parts 42500ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner SDOperand InL, InH; 42510ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner ExpandOp(Op, InL, InH); 42520ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner switch(Opc) { 42530ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SHL: 42540ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::SHL, NVT, InL, Amt); 42550ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::OR, NVT, 42560ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SHL, NVT, InH, Amt), 42570ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SRL, NVT, InL, Amt2)); 42580ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 42590ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRL: 42600ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SRL, NVT, InH, Amt); 42610ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::OR, NVT, 42620ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SRL, NVT, InL, Amt), 42630ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SHL, NVT, InH, Amt2)); 42640ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 42650ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRA: 42660ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, InH, Amt); 42670ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::OR, NVT, 42680ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SRL, NVT, InL, Amt), 42690ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SHL, NVT, InH, Amt2)); 42700ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 42710ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 42720ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 42730ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 4274f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return false; 4275e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner} 427677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner 42779c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner 427877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// ExpandLibCall - Expand a node into a call to a libcall. If the result value 427977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// does not fit into a register, return the lo part and set the hi part to the 428077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// by-reg argument. If it does fit into a single register, return the result 428177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// and leave the Hi part unset. 428277e77a6aa0ab25a812947aed477220dd11220a18Chris LattnerSDOperand SelectionDAGLegalize::ExpandLibCall(const char *Name, SDNode *Node, 428347857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer bool isSigned, SDOperand &Hi) { 42846831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "Cannot overlap legalization of calls!"); 42856831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // The input chain to this libcall is the entry node of the function. 42866831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalizing the call will automatically add the previous call to the 42876831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // dependence. 42886831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand InChain = DAG.getEntryNode(); 42896831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 429077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner TargetLowering::ArgListTy Args; 429147857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TargetLowering::ArgListEntry Entry; 429277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 429377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner MVT::ValueType ArgVT = Node->getOperand(i).getValueType(); 429477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner const Type *ArgTy = MVT::getTypeForValueType(ArgVT); 429547857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Entry.Node = Node->getOperand(i); Entry.Ty = ArgTy; 4296d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov Entry.isSExt = isSigned; 429747857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Args.push_back(Entry); 429877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner } 429977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand Callee = DAG.getExternalSymbol(Name, TLI.getPointerTy()); 4300edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 43010d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner // Splice the libcall in wherever FindInputOutputChains tells us to. 430277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner const Type *RetTy = MVT::getTypeForValueType(Node->getValueType(0)); 43030d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner std::pair<SDOperand,SDOperand> CallInfo = 430447857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TLI.LowerCallTo(InChain, RetTy, isSigned, false, CallingConv::C, false, 4305adf6a965a321372c640845407195594835921eb4Chris Lattner Callee, Args, DAG); 43060d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner 43076831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalize the call sequence, starting with the chain. This will advance 43086831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // the LastCALLSEQ_END to the legalized version of the CALLSEQ_END node that 43096831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // was added by LowerCallTo (guaranteeing proper serialization of calls). 43106831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(CallInfo.second); 431199c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner SDOperand Result; 43120d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner switch (getTypeAction(CallInfo.first.getValueType())) { 431377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner default: assert(0 && "Unknown thing"); 431477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case Legal: 4315456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = CallInfo.first; 431699c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner break; 431777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case Expand: 431899c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner ExpandOp(CallInfo.first, Result, Hi); 431999c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner break; 432077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner } 432122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Result; 432222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 432322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 432422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 43254c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng/// ExpandIntToFP - Expand a [US]INT_TO_FP operation. 43264c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng/// 432722cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize:: 432822cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerExpandIntToFP(bool isSigned, MVT::ValueType DestTy, SDOperand Source) { 432922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(getTypeAction(Source.getValueType()) == Expand && 433022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner "This is not an expansion!"); 433122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(Source.getValueType() == MVT::i64 && "Only handle expand from i64!"); 433222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 433322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!isSigned) { 433422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(Source.getValueType() == MVT::i64 && 433522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner "This only works for 64-bit -> FP"); 433622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // The 64-bit value loaded will be incorrectly if the 'sign bit' of the 433722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // incoming integer is set. To handle this, we dynamically test to see if 433822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // it is set, and, if so, add a fudge factor. 433922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Lo, Hi; 434022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ExpandOp(Source, Lo, Hi); 434122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 434222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If this is unsigned, and not supported, first perform the conversion to 434322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // signed, then adjust the result if the sign bit is set. 434422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignedConv = ExpandIntToFP(true, DestTy, 434522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::BUILD_PAIR, Source.getValueType(), Lo, Hi)); 434622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 434722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignSet = DAG.getSetCC(TLI.getSetCCResultTy(), Hi, 434822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getConstant(0, Hi.getValueType()), 434922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ISD::SETLT); 435022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Zero = getIntPtrConstant(0), Four = getIntPtrConstant(4); 435122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CstOffset = DAG.getNode(ISD::SELECT, Zero.getValueType(), 435222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SignSet, Four, Zero); 435322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner uint64_t FF = 0x5f800000ULL; 435422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (TLI.isLittleEndian()) FF <<= 32; 435547857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer static Constant *FudgeFactor = ConstantInt::get(Type::Int64Ty, FF); 435622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 435722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CPIdx = DAG.getConstantPool(FudgeFactor, TLI.getPointerTy()); 435822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner CPIdx = DAG.getNode(ISD::ADD, TLI.getPointerTy(), CPIdx, CstOffset); 435922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand FudgeInReg; 436022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestTy == MVT::f32) 4361466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng FudgeInReg = DAG.getLoad(MVT::f32, DAG.getEntryNode(), CPIdx, NULL, 0); 436222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner else { 436322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(DestTy == MVT::f64 && "Unexpected conversion"); 43644c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng // FIXME: Avoid the extend by construction the right constantpool? 436522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner FudgeInReg = DAG.getExtLoad(ISD::EXTLOAD, MVT::f64, DAG.getEntryNode(), 4366466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng CPIdx, NULL, 0, MVT::f32); 436722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 43684c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng MVT::ValueType SCVT = SignedConv.getValueType(); 43694c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng if (SCVT != DestTy) { 43704c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng // Destination type needs to be expanded as well. The FADD now we are 43714c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng // constructing will be expanded into a libcall. 43724c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng if (MVT::getSizeInBits(SCVT) != MVT::getSizeInBits(DestTy)) { 43734c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng assert(SCVT == MVT::i32 && DestTy == MVT::f64); 43744c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng SignedConv = DAG.getNode(ISD::BUILD_PAIR, MVT::i64, 43754c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng SignedConv, SignedConv.getValue(1)); 43764c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng } 43774c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng SignedConv = DAG.getNode(ISD::BIT_CONVERT, DestTy, SignedConv); 43784c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng } 437922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::FADD, DestTy, SignedConv, FudgeInReg); 438022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 438122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 438222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Check to see if the target has a custom way to lower this. If so, use it. 438322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::SINT_TO_FP, Source.getValueType())) { 438422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "This action not implemented for this operation!"); 438522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 438622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Expand: 438722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // This case is handled below. 438822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: { 438922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand NV = TLI.LowerOperation(DAG.getNode(ISD::SINT_TO_FP, DestTy, 439022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Source), DAG); 439122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (NV.Val) 439222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return LegalizeOp(NV); 439322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // The target decided this was legal after all 439422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 439522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 439622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 439722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Expand the source, then glue it back together for the call. We must expand 439822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // the source in case it is shared (this pass of legalize must traverse it). 439922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SrcLo, SrcHi; 440022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ExpandOp(Source, SrcLo, SrcHi); 440122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Source = DAG.getNode(ISD::BUILD_PAIR, Source.getValueType(), SrcLo, SrcHi); 440222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 440356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC; 440422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestTy == MVT::f32) 440556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::SINTTOFP_I64_F32; 440622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner else { 440722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(DestTy == MVT::f64 && "Unknown fp value type!"); 440856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::SINTTOFP_I64_F64; 440922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 44106831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 44114c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng assert(TLI.getLibcallName(LC) && "Don't know how to expand this SINT_TO_FP!"); 44126831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Source = DAG.getNode(ISD::SINT_TO_FP, DestTy, Source); 44136831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand UnusedHiPart; 441456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng return ExpandLibCall(TLI.getLibcallName(LC), Source.Val, isSigned, 441556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng UnusedHiPart); 441622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 441722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 441822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandLegalINT_TO_FP - This function is responsible for legalizing a 441922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// INT_TO_FP operation of the specified operand when the target requests that 442022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we expand it. At this point, we know that the result and operand types are 442122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target. 442222cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandLegalINT_TO_FP(bool isSigned, 442322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Op0, 442422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType DestVT) { 442522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (Op0.getValueType() == MVT::i32) { 442622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // simple 32-bit [signed|unsigned] integer to float/double expansion 442722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 442858092e35a3368e130438cbc793c8f9dce2e4fe0fChris Lattner // get the stack frame index of a 8 byte buffer, pessimistically aligned 442922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MachineFunction &MF = DAG.getMachineFunction(); 443058092e35a3368e130438cbc793c8f9dce2e4fe0fChris Lattner const Type *F64Type = MVT::getTypeForValueType(MVT::f64); 443158092e35a3368e130438cbc793c8f9dce2e4fe0fChris Lattner unsigned StackAlign = 4432d2b7cec527a0efa552628378ebca7a8ca63bb45dChris Lattner (unsigned)TLI.getTargetData()->getPrefTypeAlignment(F64Type); 443358092e35a3368e130438cbc793c8f9dce2e4fe0fChris Lattner int SSFI = MF.getFrameInfo()->CreateStackObject(8, StackAlign); 443422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // get address of 8 byte buffer 443522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand StackSlot = DAG.getFrameIndex(SSFI, TLI.getPointerTy()); 443622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // word offset constant for Hi/Lo address computation 443722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand WordOff = DAG.getConstant(sizeof(int), TLI.getPointerTy()); 443822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // set up Hi and Lo (into buffer) address based on endian 4439408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner SDOperand Hi = StackSlot; 4440408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner SDOperand Lo = DAG.getNode(ISD::ADD, TLI.getPointerTy(), StackSlot,WordOff); 4441408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner if (TLI.isLittleEndian()) 4442408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner std::swap(Hi, Lo); 4443408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner 444422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // if signed map to unsigned space 444522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Op0Mapped; 444622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (isSigned) { 444722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // constant used to invert sign bit (signed to unsigned mapping) 444822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignBit = DAG.getConstant(0x80000000u, MVT::i32); 444922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op0Mapped = DAG.getNode(ISD::XOR, MVT::i32, Op0, SignBit); 445022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } else { 445122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op0Mapped = Op0; 445222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 445322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // store the lo of the constructed double - based on integer input 4454786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng SDOperand Store1 = DAG.getStore(DAG.getEntryNode(), 44558b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Op0Mapped, Lo, NULL, 0); 445622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // initial hi portion of constructed double 445722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand InitialHi = DAG.getConstant(0x43300000u, MVT::i32); 445822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // store the hi of the constructed double - biased exponent 44598b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDOperand Store2=DAG.getStore(Store1, InitialHi, Hi, NULL, 0); 446022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // load the constructed double 4461466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Load = DAG.getLoad(MVT::f64, Store2, StackSlot, NULL, 0); 446222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FP constant to bias correct the final result 446322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Bias = DAG.getConstantFP(isSigned ? 446422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner BitsToDouble(0x4330000080000000ULL) 446522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner : BitsToDouble(0x4330000000000000ULL), 446622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::f64); 446722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // subtract the bias 446822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Sub = DAG.getNode(ISD::FSUB, MVT::f64, Load, Bias); 446922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // final result 447022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Result; 447122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // handle final rounding 447222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestVT == MVT::f64) { 447322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // do nothing 447422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Result = Sub; 447522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } else { 447622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // if f32 then cast to f32 447722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Result = DAG.getNode(ISD::FP_ROUND, MVT::f32, Sub); 447822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 447922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Result; 448022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 448122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(!isSigned && "Legalize cannot Expand SINT_TO_FP for i64 yet"); 448222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp1 = DAG.getNode(ISD::SINT_TO_FP, DestVT, Op0); 448322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 448422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignSet = DAG.getSetCC(TLI.getSetCCResultTy(), Op0, 448522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getConstant(0, Op0.getValueType()), 448622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ISD::SETLT); 448722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Zero = getIntPtrConstant(0), Four = getIntPtrConstant(4); 448822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CstOffset = DAG.getNode(ISD::SELECT, Zero.getValueType(), 448922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SignSet, Four, Zero); 449022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 449122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the sign bit of the integer is set, the large number will be treated 449222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // as a negative number. To counteract this, the dynamic code adds an 449322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // offset depending on the data type. 449422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner uint64_t FF; 449522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (Op0.getValueType()) { 449622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Unsupported integer type!"); 449722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i8 : FF = 0x43800000ULL; break; // 2^8 (as a float) 449822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i16: FF = 0x47800000ULL; break; // 2^16 (as a float) 449922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i32: FF = 0x4F800000ULL; break; // 2^32 (as a float) 450022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i64: FF = 0x5F800000ULL; break; // 2^64 (as a float) 450122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 450222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (TLI.isLittleEndian()) FF <<= 32; 450347857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer static Constant *FudgeFactor = ConstantInt::get(Type::Int64Ty, FF); 450422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 450522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CPIdx = DAG.getConstantPool(FudgeFactor, TLI.getPointerTy()); 450622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner CPIdx = DAG.getNode(ISD::ADD, TLI.getPointerTy(), CPIdx, CstOffset); 450722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand FudgeInReg; 450822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestVT == MVT::f32) 4509466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng FudgeInReg = DAG.getLoad(MVT::f32, DAG.getEntryNode(), CPIdx, NULL, 0); 451022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner else { 451122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(DestVT == MVT::f64 && "Unexpected conversion"); 451222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner FudgeInReg = LegalizeOp(DAG.getExtLoad(ISD::EXTLOAD, MVT::f64, 451322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getEntryNode(), CPIdx, 4514466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng NULL, 0, MVT::f32)); 451522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 451622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 451722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::FADD, DestVT, Tmp1, FudgeInReg); 451822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 451922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 452022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// PromoteLegalINT_TO_FP - This function is responsible for legalizing a 452122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// *INT_TO_FP operation of the specified operand when the target requests that 452222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we promote it. At this point, we know that the result and operand types are 452322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target, and that there is a legal UINT_TO_FP or SINT_TO_FP 452422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// operation that takes a larger input. 452522cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::PromoteLegalINT_TO_FP(SDOperand LegalOp, 452622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType DestVT, 452722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner bool isSigned) { 452822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // First step, figure out the appropriate *INT_TO_FP operation to use. 452922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType NewInTy = LegalOp.getValueType(); 453022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 453122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner unsigned OpToUse = 0; 453222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 453322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Scan for the appropriate larger type to use. 453422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner while (1) { 453522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner NewInTy = (MVT::ValueType)(NewInTy+1); 453622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(MVT::isInteger(NewInTy) && "Ran out of possibilities!"); 453722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 453822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports SINT_TO_FP of this type, use it. 453922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::SINT_TO_FP, NewInTy)) { 454022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 454122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 454222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewInTy)) 454322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 454422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 454522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 454622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::SINT_TO_FP; 454722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 454822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 454922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 455022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (isSigned) continue; 455122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 455222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports UINT_TO_FP of this type, use it. 455322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::UINT_TO_FP, NewInTy)) { 455422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 455522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 455622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewInTy)) 455722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 455822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 455922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 456022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::UINT_TO_FP; 456122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 456222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 456322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 456422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 456522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Otherwise, try a larger type. 456622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 456722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 456822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Okay, we found the operation and type to use. Zero extend our input to the 456922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // desired type then run the operation on it. 457022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(OpToUse, DestVT, 457122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(isSigned ? ISD::SIGN_EXTEND : ISD::ZERO_EXTEND, 457222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner NewInTy, LegalOp)); 457377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner} 457477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner 457522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// PromoteLegalFP_TO_INT - This function is responsible for legalizing a 457622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// FP_TO_*INT operation of the specified operand when the target requests that 457722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we promote it. At this point, we know that the result and operand types are 457822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target, and that there is a legal FP_TO_UINT or FP_TO_SINT 457922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// operation that returns a larger result. 458022cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::PromoteLegalFP_TO_INT(SDOperand LegalOp, 458122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType DestVT, 458222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner bool isSigned) { 458322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // First step, figure out the appropriate FP_TO*INT operation to use. 458422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType NewOutTy = DestVT; 45859c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner 458622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner unsigned OpToUse = 0; 4587e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner 458822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Scan for the appropriate larger type to use. 458922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner while (1) { 459022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner NewOutTy = (MVT::ValueType)(NewOutTy+1); 459122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(MVT::isInteger(NewOutTy) && "Ran out of possibilities!"); 459266de05b606cf31f1f23ed0c4eb1f097738cd1506Chris Lattner 459322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports FP_TO_SINT returning this type, use it. 459422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::FP_TO_SINT, NewOutTy)) { 459522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 459622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 459722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewOutTy)) 459822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 459922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 460022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 460122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::FP_TO_SINT; 460222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 460322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 460422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 4605e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner 460622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports FP_TO_UINT of this type, use it. 460722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::FP_TO_UINT, NewOutTy)) { 460822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 460922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 461022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewOutTy)) 461122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 461222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 461322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 461422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::FP_TO_UINT; 461522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 4616e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner } 461722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 46180d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner 461922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Otherwise, try a larger type. 4620a88a260dbd874a3bdd3e47f4f15ab0d7c7803044Chris Lattner } 4621a88a260dbd874a3bdd3e47f4f15ab0d7c7803044Chris Lattner 462222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Okay, we found the operation and type to use. Truncate the result of the 462322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // extended FP_TO_*INT operation to the desired size. 462422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::TRUNCATE, DestVT, 462522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(OpToUse, NewOutTy, LegalOp)); 462622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 462713689e2009e71f7982d1313ed699e0e6a50157d0Chris Lattner 462822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandBSWAP - Open code the operations for BSWAP of the specified operation. 462922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// 463022cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandBSWAP(SDOperand Op) { 463122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 463222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType SHVT = TLI.getShiftAmountTy(); 463322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp1, Tmp2, Tmp3, Tmp4, Tmp5, Tmp6, Tmp7, Tmp8; 463422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (VT) { 463522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Unhandled Expand type in BSWAP!"); abort(); 463622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i16: 463722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 463822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 463922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp1, Tmp2); 464022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i32: 464122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(24, SHVT)); 464222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 464322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 464422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(24, SHVT)); 464522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::AND, VT, Tmp3, DAG.getConstant(0xFF0000, VT)); 464622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::AND, VT, Tmp2, DAG.getConstant(0xFF00, VT)); 464722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp3); 464822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::OR, VT, Tmp2, Tmp1); 464922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp4, Tmp2); 465022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i64: 465122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(56, SHVT)); 465222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp7 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(40, SHVT)); 465322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(24, SHVT)); 465422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp5 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 465522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 465622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(24, SHVT)); 465722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(40, SHVT)); 465822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(56, SHVT)); 465922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp7 = DAG.getNode(ISD::AND, VT, Tmp7, DAG.getConstant(255ULL<<48, VT)); 466022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::AND, VT, Tmp6, DAG.getConstant(255ULL<<40, VT)); 466122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp5 = DAG.getNode(ISD::AND, VT, Tmp5, DAG.getConstant(255ULL<<32, VT)); 466222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::AND, VT, Tmp4, DAG.getConstant(255ULL<<24, VT)); 466322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::AND, VT, Tmp3, DAG.getConstant(255ULL<<16, VT)); 466422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::AND, VT, Tmp2, DAG.getConstant(255ULL<<8 , VT)); 466522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::OR, VT, Tmp8, Tmp7); 466622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::OR, VT, Tmp6, Tmp5); 466722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp3); 466822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::OR, VT, Tmp2, Tmp1); 466922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::OR, VT, Tmp8, Tmp6); 467022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp2); 467122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp8, Tmp4); 46720d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner } 467377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner} 4674edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 467522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandBitCount - Expand the specified bitcount instruction into operations. 467622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// 467722cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandBitCount(unsigned Opc, SDOperand Op) { 467822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (Opc) { 467922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Cannot expand this yet!"); 468022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTPOP: { 468122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner static const uint64_t mask[6] = { 468222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x5555555555555555ULL, 0x3333333333333333ULL, 468322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x0F0F0F0F0F0F0F0FULL, 0x00FF00FF00FF00FFULL, 468422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x0000FFFF0000FFFFULL, 0x00000000FFFFFFFFULL 468522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner }; 468622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 468722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType ShVT = TLI.getShiftAmountTy(); 4688b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman unsigned len = MVT::getSizeInBits(VT); 468922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner for (unsigned i = 0; (1U << i) <= (len / 2); ++i) { 469022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner //x = (x & mask[i][len/8]) + (x >> (1 << i) & mask[i][len/8]) 469122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp2 = DAG.getConstant(mask[i], VT); 469222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getConstant(1ULL << i, ShVT); 469322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::ADD, VT, DAG.getNode(ISD::AND, VT, Op, Tmp2), 469422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::AND, VT, 469522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::SRL, VT, Op, Tmp3),Tmp2)); 469622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 469722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Op; 469822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 469922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTLZ: { 470022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // for now, we do this: 470122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >> 1); 470222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >> 2); 470322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // ... 470422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >>16); 470522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >>32); // for 64-bit input 470622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // return popcount(~x); 470722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // 470822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // but see also: http://www.hackersdelight.org/HDcode/nlz.cc 470922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 471022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType ShVT = TLI.getShiftAmountTy(); 4711b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman unsigned len = MVT::getSizeInBits(VT); 471222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner for (unsigned i = 0; (1U << i) <= (len / 2); ++i) { 471322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getConstant(1ULL << i, ShVT); 471422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::OR, VT, Op, DAG.getNode(ISD::SRL, VT, Op, Tmp3)); 471522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 471622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::XOR, VT, Op, DAG.getConstant(~0ULL, VT)); 471722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::CTPOP, VT, Op); 471822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 471922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTTZ: { 472022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // for now, we use: { return popcount(~x & (x - 1)); } 472122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // unless the target has ctlz but not ctpop, in which case we use: 472222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // { return 32 - nlz(~x & (x-1)); } 472322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // see also http://www.hackersdelight.org/HDcode/ntz.cc 472422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 472522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp2 = DAG.getConstant(~0ULL, VT); 472622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getNode(ISD::AND, VT, 472722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::XOR, VT, Op, Tmp2), 472822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::SUB, VT, Op, DAG.getConstant(1, VT))); 472922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If ISD::CTLZ is legal and CTPOP isn't, then do that instead. 473022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isOperationLegal(ISD::CTPOP, VT) && 473122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner TLI.isOperationLegal(ISD::CTLZ, VT)) 473222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::SUB, VT, 4733b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(VT), VT), 473422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::CTLZ, VT, Tmp3)); 473522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::CTPOP, VT, Tmp3); 473622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 473722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 473822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 4739e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 47403e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// ExpandOp - Expand the specified SDOperand into its two component pieces 47413e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// Lo&Hi. Note that the Op MUST be an expanded type. As a result of this, the 47423e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// LegalizeNodes map is filled in for any results that are not expanded, the 47433e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// ExpandedNodes map is filled in for any results that are expanded, and the 47443e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// Lo/Hi values are returned. 47453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnervoid SelectionDAGLegalize::ExpandOp(SDOperand Op, SDOperand &Lo, SDOperand &Hi){ 47463e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner MVT::ValueType VT = Op.getValueType(); 474771c42a0190300a8903aaea80467b88f15f327ea9Chris Lattner MVT::ValueType NVT = TLI.getTypeToTransformTo(VT); 47483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDNode *Node = Op.Val; 47493e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(getTypeAction(VT) == Expand && "Not an expanded type!"); 47501a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng assert(((MVT::isInteger(NVT) && NVT < VT) || MVT::isFloatingPoint(VT) || 47511a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng VT == MVT::Vector) && 47523e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner "Cannot expand to FP value or to larger int value!"); 47533e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 47546fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner // See if we already expanded it. 475540030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner DenseMap<SDOperand, std::pair<SDOperand, SDOperand> >::iterator I 47566fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner = ExpandedNodes.find(Op); 47576fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner if (I != ExpandedNodes.end()) { 47586fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner Lo = I->second.first; 47596fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner Hi = I->second.second; 47606fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner return; 47613e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 47623e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 47633e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getOpcode()) { 4764348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner case ISD::CopyFromReg: 4765348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner assert(0 && "CopyFromReg must be legal!"); 4766348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner default: 4767e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 476839833585556a69de12053ca1e104fe7edfd86cbdDan Gohman cerr << "NODE: "; Node->dump(&DAG); cerr << "\n"; 4769e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 47703e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(0 && "Do not know how to expand this operator!"); 47713e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner abort(); 4772fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: 4773aa975c1c4785a1d7930f2cd1026cb40ce54d21e4Evan Cheng NVT = TLI.getTypeToExpandTo(VT); 4774fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Lo = DAG.getNode(ISD::UNDEF, NVT); 4775fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Hi = DAG.getNode(ISD::UNDEF, NVT); 4776fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 47773e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::Constant: { 47783e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner uint64_t Cst = cast<ConstantSDNode>(Node)->getValue(); 47793e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Lo = DAG.getConstant(Cst, NVT); 47803e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getConstant(Cst >> MVT::getSizeInBits(NVT), NVT); 47813e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 47823e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 4783004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng case ISD::ConstantFP: { 4784004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng ConstantFPSDNode *CFP = cast<ConstantFPSDNode>(Node); 4785279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng Lo = ExpandConstantFP(CFP, false, DAG, TLI); 47869f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng if (getTypeAction(Lo.getValueType()) == Expand) 47879f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng ExpandOp(Lo, Lo, Hi); 4788004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng break; 4789004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 4790d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner case ISD::BUILD_PAIR: 47918137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Return the operands. 47928137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = Node->getOperand(0); 47938137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = Node->getOperand(1); 4794d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner break; 479558f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner 479658f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner case ISD::SIGN_EXTEND_INREG: 479758f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 47984bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner // sext_inreg the low part if needed. 47994bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner Lo = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Lo, Node->getOperand(1)); 48004bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner 48014bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner // The high part gets the sign extension from the lo-part. This handles 48024bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner // things like sextinreg V:i64 from i8. 480358f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, Lo, 480458f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner DAG.getConstant(MVT::getSizeInBits(NVT)-1, 480558f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner TLI.getShiftAmountTy())); 480658f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner break; 4807d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner 4808d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: { 4809d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman ExpandOp(Node->getOperand(0), Lo, Hi); 4810d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman SDOperand TempLo = DAG.getNode(ISD::BSWAP, NVT, Hi); 4811d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Hi = DAG.getNode(ISD::BSWAP, NVT, Lo); 4812d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Lo = TempLo; 4813d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 4814d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman } 4815d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman 4816edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner case ISD::CTPOP: 4817edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 48189b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner Lo = DAG.getNode(ISD::ADD, NVT, // ctpop(HL) -> ctpop(H)+ctpop(L) 48199b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner DAG.getNode(ISD::CTPOP, NVT, Lo), 48209b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner DAG.getNode(ISD::CTPOP, NVT, Hi)); 4821edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner Hi = DAG.getConstant(0, NVT); 4822edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner break; 4823edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 482439a8f336305a492fc6d2625f39f08968185616d2Chris Lattner case ISD::CTLZ: { 482539a8f336305a492fc6d2625f39f08968185616d2Chris Lattner // ctlz (HL) -> ctlz(H) != 32 ? ctlz(H) : (ctlz(L)+32) 48263becf2026bec881a60cbbe0031d8c51f4d6d4e28Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 482739a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand BitsC = DAG.getConstant(MVT::getSizeInBits(NVT), NVT); 482839a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand HLZ = DAG.getNode(ISD::CTLZ, NVT, Hi); 48297cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner SDOperand TopNotZero = DAG.getSetCC(TLI.getSetCCResultTy(), HLZ, BitsC, 48307cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETNE); 483139a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand LowPart = DAG.getNode(ISD::CTLZ, NVT, Lo); 483239a8f336305a492fc6d2625f39f08968185616d2Chris Lattner LowPart = DAG.getNode(ISD::ADD, NVT, LowPart, BitsC); 483339a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 483439a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, TopNotZero, HLZ, LowPart); 483539a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Hi = DAG.getConstant(0, NVT); 483639a8f336305a492fc6d2625f39f08968185616d2Chris Lattner break; 483739a8f336305a492fc6d2625f39f08968185616d2Chris Lattner } 483839a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 483939a8f336305a492fc6d2625f39f08968185616d2Chris Lattner case ISD::CTTZ: { 484039a8f336305a492fc6d2625f39f08968185616d2Chris Lattner // cttz (HL) -> cttz(L) != 32 ? cttz(L) : (cttz(H)+32) 48413becf2026bec881a60cbbe0031d8c51f4d6d4e28Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 484239a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand BitsC = DAG.getConstant(MVT::getSizeInBits(NVT), NVT); 484339a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand LTZ = DAG.getNode(ISD::CTTZ, NVT, Lo); 48447cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner SDOperand BotNotZero = DAG.getSetCC(TLI.getSetCCResultTy(), LTZ, BitsC, 48457cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETNE); 484639a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand HiPart = DAG.getNode(ISD::CTTZ, NVT, Hi); 484739a8f336305a492fc6d2625f39f08968185616d2Chris Lattner HiPart = DAG.getNode(ISD::ADD, NVT, HiPart, BitsC); 484839a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 484939a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, BotNotZero, LTZ, HiPart); 485039a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Hi = DAG.getConstant(0, NVT); 485139a8f336305a492fc6d2625f39f08968185616d2Chris Lattner break; 485239a8f336305a492fc6d2625f39f08968185616d2Chris Lattner } 4853edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 4854acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAARG: { 48558137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Ch = Node->getOperand(0); // Legalize the chain. 48568137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Ptr = Node->getOperand(1); // Legalize the pointer. 4857acc398c195a697795bff3245943d104eb19192b9Nate Begeman Lo = DAG.getVAArg(NVT, Ch, Ptr, Node->getOperand(2)); 4858acc398c195a697795bff3245943d104eb19192b9Nate Begeman Hi = DAG.getVAArg(NVT, Lo.getValue(1), Ptr, Node->getOperand(2)); 4859acc398c195a697795bff3245943d104eb19192b9Nate Begeman 4860acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Remember that we legalized the chain. 48618137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = LegalizeOp(Hi); 4862acc398c195a697795bff3245943d104eb19192b9Nate Begeman AddLegalizedOperand(Op.getValue(1), Hi.getValue(1)); 4863acc398c195a697795bff3245943d104eb19192b9Nate Begeman if (!TLI.isLittleEndian()) 4864acc398c195a697795bff3245943d104eb19192b9Nate Begeman std::swap(Lo, Hi); 4865acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 4866acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 4867acc398c195a697795bff3245943d104eb19192b9Nate Begeman 48683e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::LOAD: { 4869466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LoadSDNode *LD = cast<LoadSDNode>(Node); 4870466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Ch = LD->getChain(); // Legalize the chain. 4871466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Ptr = LD->getBasePtr(); // Legalize the pointer. 4872466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ISD::LoadExtType ExtType = LD->getExtensionType(); 4873466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 4874466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::NON_EXTLOAD) { 4875fea997aac5773e936754de5436029c2a4fa1e930Chris Lattner Lo = DAG.getLoad(NVT, Ch, Ptr, LD->getSrcValue(),LD->getSrcValueOffset()); 4876004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng if (VT == MVT::f32 || VT == MVT::f64) { 4877004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // f32->i32 or f64->i64 one to one expansion. 4878004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // Remember that we legalized the chain. 4879004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Lo.getValue(1))); 48809f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng // Recursively expand the new load. 48819f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng if (getTypeAction(NVT) == Expand) 48829f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng ExpandOp(Lo, Lo, Hi); 4883004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng break; 4884004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 4885466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 4886466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Increment the pointer to the other half. 4887466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng unsigned IncrementSize = MVT::getSizeInBits(Lo.getValueType())/8; 4888466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 4889466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng getIntPtrConstant(IncrementSize)); 4890466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // FIXME: This creates a bogus srcvalue! 4891fea997aac5773e936754de5436029c2a4fa1e930Chris Lattner Hi = DAG.getLoad(NVT, Ch, Ptr, LD->getSrcValue(),LD->getSrcValueOffset()); 4892466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 4893466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Build a factor node to remember that this load is independent of the 4894466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // other one. 4895466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand TF = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 4896466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi.getValue(1)); 4897466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 4898466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Remember that we legalized the chain. 4899466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(Op.getValue(1), LegalizeOp(TF)); 4900466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (!TLI.isLittleEndian()) 4901466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng std::swap(Lo, Hi); 4902466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else { 49032e49f090f9656af7d5ed4d5c4e9fa26af59c7233Evan Cheng MVT::ValueType EVT = LD->getLoadedVT(); 4904548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng 4905548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng if (VT == MVT::f64 && EVT == MVT::f32) { 4906548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng // f64 = EXTLOAD f32 should expand to LOAD, FP_EXTEND 4907548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng SDOperand Load = DAG.getLoad(EVT, Ch, Ptr, LD->getSrcValue(), 4908548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng LD->getSrcValueOffset()); 4909548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng // Remember that we legalized the chain. 4910548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Load.getValue(1))); 4911548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng ExpandOp(DAG.getNode(ISD::FP_EXTEND, VT, Load), Lo, Hi); 4912548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng break; 4913548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng } 4914466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 4915466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (EVT == NVT) 4916466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Lo = DAG.getLoad(NVT, Ch, Ptr, LD->getSrcValue(), 4917466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LD->getSrcValueOffset()); 4918466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng else 4919466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Lo = DAG.getExtLoad(ExtType, NVT, Ch, Ptr, LD->getSrcValue(), 4920466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LD->getSrcValueOffset(), EVT); 4921466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 4922466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Remember that we legalized the chain. 4923466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Lo.getValue(1))); 4924466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 4925466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::SEXTLOAD) { 4926466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // The high part is obtained by SRA'ing all but one of the bits of the 4927466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // lo part. 4928466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng unsigned LoSize = MVT::getSizeInBits(Lo.getValueType()); 4929466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi = DAG.getNode(ISD::SRA, NVT, Lo, 4930466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng DAG.getConstant(LoSize-1, TLI.getShiftAmountTy())); 4931466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else if (ExtType == ISD::ZEXTLOAD) { 4932466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // The high part is just a zero. 4933466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi = DAG.getConstant(0, NVT); 4934466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else /* if (ExtType == ISD::EXTLOAD) */ { 4935466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // The high part is undefined. 4936466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi = DAG.getNode(ISD::UNDEF, NVT); 4937466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 4938466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 49393e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 49403e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 49413e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::AND: 49423e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::OR: 49433e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::XOR: { // Simple logical operators -> two trivial pieces. 49443e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand LL, LH, RL, RH; 49453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(0), LL, LH); 49463e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(1), RL, RH); 49473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Lo = DAG.getNode(Node->getOpcode(), NVT, LL, RL); 49483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getNode(Node->getOpcode(), NVT, LH, RH); 49493e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 49503e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 49513e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SELECT: { 4952456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand LL, LH, RL, RH; 49533e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(1), LL, LH); 49543e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(2), RL, RH); 495519103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (getTypeAction(NVT) == Expand) 495619103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng NVT = TLI.getTypeToExpandTo(NVT); 4957456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), LL, RL); 495819103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (VT != MVT::f32) 495919103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng Hi = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), LH, RH); 49603e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 49613e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 49629373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case ISD::SELECT_CC: { 49639373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman SDOperand TL, TH, FL, FH; 49649373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman ExpandOp(Node->getOperand(2), TL, TH); 49659373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman ExpandOp(Node->getOperand(3), FL, FH); 496619103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (getTypeAction(NVT) == Expand) 496719103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng NVT = TLI.getTypeToExpandTo(NVT); 49689373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Lo = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 49699373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Node->getOperand(1), TL, FL, Node->getOperand(4)); 497019103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (VT != MVT::f32) 497119103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng Hi = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 497219103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng Node->getOperand(1), TH, FH, Node->getOperand(4)); 49739373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 49749373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 49758137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::ANY_EXTEND: 497613c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner // The low part is any extension of the input (which degenerates to a copy). 49778137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::ANY_EXTEND, NVT, Node->getOperand(0)); 497813c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner // The high part is undefined. 497913c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Hi = DAG.getNode(ISD::UNDEF, NVT); 498013c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner break; 49813e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SIGN_EXTEND: { 49823e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The low part is just a sign extension of the input (which degenerates to 49833e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // a copy). 49848137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::SIGN_EXTEND, NVT, Node->getOperand(0)); 4985edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 49863e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The high part is obtained by SRA'ing all but one of the bits of the lo 49873e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // part. 49882dad454af674cb41a14a85ad6ce5c85c43959acdChris Lattner unsigned LoSize = MVT::getSizeInBits(Lo.getValueType()); 49898137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, Lo, 49908137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner DAG.getConstant(LoSize-1, TLI.getShiftAmountTy())); 49913e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 49923e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 49938137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::ZERO_EXTEND: 49943e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The low part is just a zero extension of the input (which degenerates to 49953e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // a copy). 49968137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::ZERO_EXTEND, NVT, Node->getOperand(0)); 4997edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 49983e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The high part is just a zero. 49993e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getConstant(0, NVT); 50003e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 500135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 50024c948eb373779718e5be36d7674382b52114bf65Chris Lattner case ISD::TRUNCATE: { 50034c948eb373779718e5be36d7674382b52114bf65Chris Lattner // The input value must be larger than this value. Expand *it*. 50044c948eb373779718e5be36d7674382b52114bf65Chris Lattner SDOperand NewLo; 50054c948eb373779718e5be36d7674382b52114bf65Chris Lattner ExpandOp(Node->getOperand(0), NewLo, Hi); 50064c948eb373779718e5be36d7674382b52114bf65Chris Lattner 50074c948eb373779718e5be36d7674382b52114bf65Chris Lattner // The low part is now either the right size, or it is closer. If not the 50084c948eb373779718e5be36d7674382b52114bf65Chris Lattner // right size, make an illegal truncate so we recursively expand it. 50094c948eb373779718e5be36d7674382b52114bf65Chris Lattner if (NewLo.getValueType() != Node->getValueType(0)) 50104c948eb373779718e5be36d7674382b52114bf65Chris Lattner NewLo = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), NewLo); 50114c948eb373779718e5be36d7674382b52114bf65Chris Lattner ExpandOp(NewLo, Lo, Hi); 50124c948eb373779718e5be36d7674382b52114bf65Chris Lattner break; 50134c948eb373779718e5be36d7674382b52114bf65Chris Lattner } 50144c948eb373779718e5be36d7674382b52114bf65Chris Lattner 501535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: { 5016f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner SDOperand Tmp; 5017f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner if (TLI.getOperationAction(ISD::BIT_CONVERT, VT) == TargetLowering::Custom){ 5018f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner // If the target wants to, allow it to lower this itself. 5019f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 5020f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 5021f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner case Legal: Tmp = LegalizeOp(Node->getOperand(0)); break; 5022f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner case Promote: Tmp = PromoteOp (Node->getOperand(0)); break; 5023f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner } 5024f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner Tmp = TLI.LowerOperation(DAG.getNode(ISD::BIT_CONVERT, VT, Tmp), DAG); 5025f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner } 5026f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner 50271a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng // f32 / f64 must be expanded to i32 / i64. 502813acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (VT == MVT::f32 || VT == MVT::f64) { 502913acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Lo = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 503019103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (getTypeAction(NVT) == Expand) 503119103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng ExpandOp(Lo, Lo, Hi); 50327b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng break; 50337b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng } 50347b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng 50357b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng // If source operand will be expanded to the same type as VT, i.e. 50367b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng // i64 <- f64, i32 <- f32, expand the source operand instead. 50377b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng MVT::ValueType VT0 = Node->getOperand(0).getValueType(); 50387b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng if (getTypeAction(VT0) == Expand && TLI.getTypeToTransformTo(VT0) == VT) { 50397b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng ExpandOp(Node->getOperand(0), Lo, Hi); 50401a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 50411a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng } 50421a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng 5043f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner // Turn this into a load/store pair by default. 5044f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner if (Tmp.Val == 0) 504513acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Tmp = ExpandBIT_CONVERT(VT, Node->getOperand(0)); 5046f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner 504735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner ExpandOp(Tmp, Lo, Hi); 504835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 504935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 5050f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 50518137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::READCYCLECOUNTER: 5052308575be66ec3870d27b19df044fda18448feb41Chris Lattner assert(TLI.getOperationAction(ISD::READCYCLECOUNTER, VT) == 5053308575be66ec3870d27b19df044fda18448feb41Chris Lattner TargetLowering::Custom && 5054308575be66ec3870d27b19df044fda18448feb41Chris Lattner "Must custom expand ReadCycleCounter"); 50558137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = TLI.LowerOperation(Op, DAG); 50568137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner assert(Lo.Val && "Node must be custom expanded!"); 50578137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = Lo.getValue(1); 5058308575be66ec3870d27b19df044fda18448feb41Chris Lattner AddLegalizedOperand(SDOperand(Node, 1), // Remember we legalized the chain. 50598137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner LegalizeOp(Lo.getValue(2))); 5060f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth break; 5061f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 50624e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner // These operators cannot be expanded directly, emit them as calls to 50634e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner // library functions. 506456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FP_TO_SINT: { 506580a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner if (TLI.getOperationAction(ISD::FP_TO_SINT, VT) == TargetLowering::Custom) { 5066f20d183c2268553c738fefb014959ea924dd0555Chris Lattner SDOperand Op; 5067f20d183c2268553c738fefb014959ea924dd0555Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 5068f20d183c2268553c738fefb014959ea924dd0555Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 50698137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Legal: Op = LegalizeOp(Node->getOperand(0)); break; 50708137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Promote: Op = PromoteOp (Node->getOperand(0)); break; 5071f20d183c2268553c738fefb014959ea924dd0555Chris Lattner } 5072d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 5073f20d183c2268553c738fefb014959ea924dd0555Chris Lattner Op = TLI.LowerOperation(DAG.getNode(ISD::FP_TO_SINT, VT, Op), DAG); 5074f20d183c2268553c738fefb014959ea924dd0555Chris Lattner 507580a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner // Now that the custom expander is done, expand the result, which is still 507680a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner // VT. 507707dffd6af673c73352150583150b242a93694f00Chris Lattner if (Op.Val) { 507807dffd6af673c73352150583150b242a93694f00Chris Lattner ExpandOp(Op, Lo, Hi); 507907dffd6af673c73352150583150b242a93694f00Chris Lattner break; 508007dffd6af673c73352150583150b242a93694f00Chris Lattner } 508180a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner } 5082d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 508356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC; 50844e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner if (Node->getOperand(0).getValueType() == MVT::f32) 508556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::FPTOSINT_F32_I64; 50864e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner else 508756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::FPTOSINT_F64_I64; 508856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(LC), Node, 508956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Hi); 50904e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner break; 509156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng } 5092d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 509356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FP_TO_UINT: { 509480a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner if (TLI.getOperationAction(ISD::FP_TO_UINT, VT) == TargetLowering::Custom) { 50958137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op; 50968137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 50978137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 50988137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Legal: Op = LegalizeOp(Node->getOperand(0)); break; 50998137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Promote: Op = PromoteOp (Node->getOperand(0)); break; 51008137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 51018137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 51028137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Op = TLI.LowerOperation(DAG.getNode(ISD::FP_TO_UINT, VT, Op), DAG); 51038137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 51048137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Now that the custom expander is done, expand the result. 510507dffd6af673c73352150583150b242a93694f00Chris Lattner if (Op.Val) { 510607dffd6af673c73352150583150b242a93694f00Chris Lattner ExpandOp(Op, Lo, Hi); 510707dffd6af673c73352150583150b242a93694f00Chris Lattner break; 510807dffd6af673c73352150583150b242a93694f00Chris Lattner } 510980a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner } 5110d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 511156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC; 51124e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner if (Node->getOperand(0).getValueType() == MVT::f32) 511356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::FPTOUINT_F32_I64; 51144e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner else 511556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::FPTOUINT_F64_I64; 511656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(LC), Node, 511756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Hi); 51184e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner break; 511956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng } 51204e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner 512105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SHL: { 512250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 5123348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 512450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SHL, VT) == TargetLowering::Custom) { 51258137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SHL, VT, Node->getOperand(0), ShiftAmt); 512650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 512750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 512850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 512950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 513050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 513150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 513250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 513350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 513450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 513579980b07dab50da1a8f572f9504674bfa853d484Chris Lattner // If ADDC/ADDE are supported and if the shift amount is a constant 1, emit 513679980b07dab50da1a8f572f9504674bfa853d484Chris Lattner // this X << 1 as X+X. 513779980b07dab50da1a8f572f9504674bfa853d484Chris Lattner if (ConstantSDNode *ShAmt = dyn_cast<ConstantSDNode>(ShiftAmt)) { 513879980b07dab50da1a8f572f9504674bfa853d484Chris Lattner if (ShAmt->getValue() == 1 && TLI.isOperationLegal(ISD::ADDC, NVT) && 513979980b07dab50da1a8f572f9504674bfa853d484Chris Lattner TLI.isOperationLegal(ISD::ADDE, NVT)) { 514079980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDOperand LoOps[2], HiOps[3]; 514179980b07dab50da1a8f572f9504674bfa853d484Chris Lattner ExpandOp(Node->getOperand(0), LoOps[0], HiOps[0]); 514279980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDVTList VTList = DAG.getVTList(LoOps[0].getValueType(), MVT::Flag); 514379980b07dab50da1a8f572f9504674bfa853d484Chris Lattner LoOps[1] = LoOps[0]; 514479980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Lo = DAG.getNode(ISD::ADDC, VTList, LoOps, 2); 514579980b07dab50da1a8f572f9504674bfa853d484Chris Lattner 514679980b07dab50da1a8f572f9504674bfa853d484Chris Lattner HiOps[1] = HiOps[0]; 514779980b07dab50da1a8f572f9504674bfa853d484Chris Lattner HiOps[2] = Lo.getValue(1); 514879980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Hi = DAG.getNode(ISD::ADDE, VTList, HiOps, 3); 514979980b07dab50da1a8f572f9504674bfa853d484Chris Lattner break; 515079980b07dab50da1a8f572f9504674bfa853d484Chris Lattner } 515179980b07dab50da1a8f572f9504674bfa853d484Chris Lattner } 515279980b07dab50da1a8f572f9504674bfa853d484Chris Lattner 5153e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 5154348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SHL, Node->getOperand(0), ShiftAmt, Lo, Hi)) 5155e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 51564759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 51574759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SHL_PARTS, use it. 515805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 515905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SHL_PARTS, NVT); 516005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 516105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 5162348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SHL_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 51634759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 51644759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 51654759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 5166e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 516756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SHL_I64), Node, 516856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*left shift=unsigned*/, Hi); 5169e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 517005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 5171e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 517205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SRA: { 517350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 5174348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 517550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SRA, VT) == TargetLowering::Custom) { 51768137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SRA, VT, Node->getOperand(0), ShiftAmt); 517750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 517850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 517950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 518050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 518150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 518250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 518350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 518450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 518550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 5186e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 5187348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SRA, Node->getOperand(0), ShiftAmt, Lo, Hi)) 5188e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 51894759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 51904759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SRA_PARTS, use it. 519105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 519205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SRA_PARTS, NVT); 519305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 519405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 5195348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SRA_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 51964759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 51974759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 51984759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 5199e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 520056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SRA_I64), Node, 520156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng true/*ashr is signed*/, Hi); 5202e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 520305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 520405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 520505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SRL: { 520650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 5207348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 520850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SRL, VT) == TargetLowering::Custom) { 52098137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SRL, VT, Node->getOperand(0), ShiftAmt); 521050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 521150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 521250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 521350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 521450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 521550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 521650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 521750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 521850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 5219e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 5220348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SRL, Node->getOperand(0), ShiftAmt, Lo, Hi)) 5221e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 52224759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 52234759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SRL_PARTS, use it. 522405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 522505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SRL_PARTS, NVT); 522605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 522705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 5228348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SRL_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 52294759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 52304759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 52314759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 5232e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 523356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SRL_I64), Node, 523456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*lshr is unsigned*/, Hi); 5235e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 523605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 5237e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 5238edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman case ISD::ADD: 52398137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::SUB: { 52408137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // If the target wants to custom expand this, let them. 52418137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner if (TLI.getOperationAction(Node->getOpcode(), VT) == 52428137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner TargetLowering::Custom) { 52438137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Op = TLI.LowerOperation(Op, DAG); 52448137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner if (Op.Val) { 52458137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Op, Lo, Hi); 52468137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner break; 52478137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 52488137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 52498137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 52508137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Expand the subcomponents. 52518137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand LHSL, LHSH, RHSL, RHSH; 52528137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Node->getOperand(0), LHSL, LHSH); 52538137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Node->getOperand(1), RHSL, RHSH); 525479980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); 525579980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDOperand LoOps[2], HiOps[3]; 5256bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner LoOps[0] = LHSL; 5257bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner LoOps[1] = RHSL; 5258bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[0] = LHSH; 5259bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[1] = RHSH; 5260551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman if (Node->getOpcode() == ISD::ADD) { 526179980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Lo = DAG.getNode(ISD::ADDC, VTList, LoOps, 2); 5262bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[2] = Lo.getValue(1); 526379980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Hi = DAG.getNode(ISD::ADDE, VTList, HiOps, 3); 5264551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman } else { 526579980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Lo = DAG.getNode(ISD::SUBC, VTList, LoOps, 2); 5266bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[2] = Lo.getValue(1); 526779980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Hi = DAG.getNode(ISD::SUBE, VTList, HiOps, 3); 5268551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman } 526984f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner break; 52708137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 5271b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 5272b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::ADDC: 5273b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::SUBC: { 5274b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Expand the subcomponents. 5275b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand LHSL, LHSH, RHSL, RHSH; 5276b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(0), LHSL, LHSH); 5277b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(1), RHSL, RHSH); 5278b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); 5279b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand LoOps[2] = { LHSL, RHSL }; 5280b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand HiOps[3] = { LHSH, RHSH }; 5281b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 5282b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner if (Node->getOpcode() == ISD::ADDC) { 5283b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Lo = DAG.getNode(ISD::ADDC, VTList, LoOps, 2); 5284b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner HiOps[2] = Lo.getValue(1); 5285b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Hi = DAG.getNode(ISD::ADDE, VTList, HiOps, 3); 5286b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } else { 5287b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Lo = DAG.getNode(ISD::SUBC, VTList, LoOps, 2); 5288b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner HiOps[2] = Lo.getValue(1); 5289b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Hi = DAG.getNode(ISD::SUBE, VTList, HiOps, 3); 5290b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } 5291b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Remember that we legalized the flag. 5292b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Hi.getValue(1))); 5293b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner break; 5294b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } 5295b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::ADDE: 5296b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::SUBE: { 5297b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Expand the subcomponents. 5298b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand LHSL, LHSH, RHSL, RHSH; 5299b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(0), LHSL, LHSH); 5300b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(1), RHSL, RHSH); 5301b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); 5302b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand LoOps[3] = { LHSL, RHSL, Node->getOperand(2) }; 5303b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand HiOps[3] = { LHSH, RHSH }; 5304b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 5305b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Lo = DAG.getNode(Node->getOpcode(), VTList, LoOps, 3); 5306b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner HiOps[2] = Lo.getValue(1); 5307b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Hi = DAG.getNode(Node->getOpcode(), VTList, HiOps, 3); 5308b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 5309b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Remember that we legalized the flag. 5310b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Hi.getValue(1))); 5311b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner break; 5312b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } 5313c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MUL: { 53147d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner // If the target wants to custom expand this, let them. 53157d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner if (TLI.getOperationAction(ISD::MUL, VT) == TargetLowering::Custom) { 53168829dc88a8637fe588e299d96de394afc3ecc528Chris Lattner SDOperand New = TLI.LowerOperation(Op, DAG); 53178829dc88a8637fe588e299d96de394afc3ecc528Chris Lattner if (New.Val) { 53188829dc88a8637fe588e299d96de394afc3ecc528Chris Lattner ExpandOp(New, Lo, Hi); 53197d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner break; 53207d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner } 53217d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner } 53227d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner 53233f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng bool HasMULHS = TLI.isOperationLegal(ISD::MULHS, NVT); 53243f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng bool HasMULHU = TLI.isOperationLegal(ISD::MULHU, NVT); 53253f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng if (HasMULHS || HasMULHU) { 5326c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman SDOperand LL, LH, RL, RH; 5327c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman ExpandOp(Node->getOperand(0), LL, LH); 5328c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman ExpandOp(Node->getOperand(1), RL, RH); 532956eb86806d5d178d42108f17d11098b3e640b996Nate Begeman unsigned SH = MVT::getSizeInBits(RH.getValueType())-1; 53302cbba8934745fe30662f2d5a59d03545ad5212c5Nate Begeman // FIXME: Move this to the dag combiner. 533156eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // MULHS implicitly sign extends its inputs. Check to see if ExpandOp 533256eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // extended the sign bit of the low half through the upper half, and if so 533356eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // emit a MULHS instead of the alternate sequence that is valid for any 533456eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // i64 x i64 multiply. 53353f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng if (HasMULHS && 533656eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // is RH an extension of the sign bit of RL? 533756eb86806d5d178d42108f17d11098b3e640b996Nate Begeman RH.getOpcode() == ISD::SRA && RH.getOperand(0) == RL && 533856eb86806d5d178d42108f17d11098b3e640b996Nate Begeman RH.getOperand(1).getOpcode() == ISD::Constant && 533956eb86806d5d178d42108f17d11098b3e640b996Nate Begeman cast<ConstantSDNode>(RH.getOperand(1))->getValue() == SH && 534056eb86806d5d178d42108f17d11098b3e640b996Nate Begeman // is LH an extension of the sign bit of LL? 534156eb86806d5d178d42108f17d11098b3e640b996Nate Begeman LH.getOpcode() == ISD::SRA && LH.getOperand(0) == LL && 534256eb86806d5d178d42108f17d11098b3e640b996Nate Begeman LH.getOperand(1).getOpcode() == ISD::Constant && 534356eb86806d5d178d42108f17d11098b3e640b996Nate Begeman cast<ConstantSDNode>(LH.getOperand(1))->getValue() == SH) { 5344a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner // Low part: 5345a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner Lo = DAG.getNode(ISD::MUL, NVT, LL, RL); 5346a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner // High part: 534756eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::MULHS, NVT, LL, RL); 5348a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner break; 53493f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng } else if (HasMULHU) { 5350a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner // Low part: 5351a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner Lo = DAG.getNode(ISD::MUL, NVT, LL, RL); 5352a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner 5353a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner // High part: 535456eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::MULHU, NVT, LL, RL); 535556eb86806d5d178d42108f17d11098b3e640b996Nate Begeman RH = DAG.getNode(ISD::MUL, NVT, LL, RH); 535656eb86806d5d178d42108f17d11098b3e640b996Nate Begeman LH = DAG.getNode(ISD::MUL, NVT, LH, RL); 535756eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::ADD, NVT, Hi, RH); 535856eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::ADD, NVT, Hi, LH); 5359a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner break; 536056eb86806d5d178d42108f17d11098b3e640b996Nate Begeman } 5361c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman } 53623f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng 536356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::MUL_I64), Node, 536456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Hi); 5365c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman break; 5366c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman } 536756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::SDIV: 536856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SDIV_I64), Node, true, Hi); 536956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 537056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::UDIV: 537156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::UDIV_I64), Node, true, Hi); 537256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 537356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::SREM: 537456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SREM_I64), Node, true, Hi); 537556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 537656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::UREM: 537756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::UREM_I64), Node, true, Hi); 537856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 53795c9ce1893a4bee65bc05c7c48f11734f55405692Evan Cheng 53801a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FADD: 538156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName((VT == MVT::f32) 538256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::ADD_F32 : RTLIB::ADD_F64), 538356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 53841a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 53851a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FSUB: 538656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName((VT == MVT::f32) 538756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::SUB_F32 : RTLIB::SUB_F64), 538856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 53891a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 53901a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FMUL: 539156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName((VT == MVT::f32) 539256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::MUL_F32 : RTLIB::MUL_F64), 539356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 53941a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 53951a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FDIV: 539656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName((VT == MVT::f32) 539756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::DIV_F32 : RTLIB::DIV_F64), 539856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 53991a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 54001a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FP_EXTEND: 540156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::FPEXT_F32_F64), Node, true,Hi); 54021a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 54031a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FP_ROUND: 540456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::FPROUND_F64_F32),Node,true,Hi); 54051a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 540698ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng case ISD::FSQRT: 540798ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng case ISD::FSIN: 540898ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng case ISD::FCOS: { 540956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 541098ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng switch(Node->getOpcode()) { 541156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSQRT: 541256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::f32) ? RTLIB::SQRT_F32 : RTLIB::SQRT_F64; 541356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 541456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSIN: 541556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::f32) ? RTLIB::SIN_F32 : RTLIB::SIN_F64; 541656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 541756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FCOS: 541856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::f32) ? RTLIB::COS_F32 : RTLIB::COS_F64; 541956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 542098ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng default: assert(0 && "Unreachable!"); 542198ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng } 542256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(LC), Node, false, Hi); 542398ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng break; 542498ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng } 5425966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng case ISD::FABS: { 5426966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng SDOperand Mask = (VT == MVT::f64) 5427966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ? DAG.getConstantFP(BitsToDouble(~(1ULL << 63)), VT) 5428966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng : DAG.getConstantFP(BitsToFloat(~(1U << 31)), VT); 5429966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Mask = DAG.getNode(ISD::BIT_CONVERT, NVT, Mask); 5430966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 5431966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::AND, NVT, Lo, Mask); 5432966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng if (getTypeAction(NVT) == Expand) 5433966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ExpandOp(Lo, Lo, Hi); 5434966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng break; 5435966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng } 5436966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng case ISD::FNEG: { 5437966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng SDOperand Mask = (VT == MVT::f64) 5438966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ? DAG.getConstantFP(BitsToDouble(1ULL << 63), VT) 5439966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng : DAG.getConstantFP(BitsToFloat(1U << 31), VT); 5440966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Mask = DAG.getNode(ISD::BIT_CONVERT, NVT, Mask); 5441966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 5442966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::XOR, NVT, Lo, Mask); 5443966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng if (getTypeAction(NVT) == Expand) 5444966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ExpandOp(Lo, Lo, Hi); 5445966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng break; 5446966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng } 5447912095becac923ff614d7b07728eb345ada67765Evan Cheng case ISD::FCOPYSIGN: { 5448912095becac923ff614d7b07728eb345ada67765Evan Cheng Lo = ExpandFCOPYSIGNToBitwiseOps(Node, NVT, DAG, TLI); 5449912095becac923ff614d7b07728eb345ada67765Evan Cheng if (getTypeAction(NVT) == Expand) 5450912095becac923ff614d7b07728eb345ada67765Evan Cheng ExpandOp(Lo, Lo, Hi); 5451912095becac923ff614d7b07728eb345ada67765Evan Cheng break; 5452912095becac923ff614d7b07728eb345ada67765Evan Cheng } 54537df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng case ISD::SINT_TO_FP: 54547df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng case ISD::UINT_TO_FP: { 54557df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng bool isSigned = Node->getOpcode() == ISD::SINT_TO_FP; 54567df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng MVT::ValueType SrcVT = Node->getOperand(0).getValueType(); 545756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC; 54587df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng if (Node->getOperand(0).getValueType() == MVT::i64) { 54597df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng if (VT == MVT::f32) 546056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = isSigned ? RTLIB::SINTTOFP_I64_F32 : RTLIB::UINTTOFP_I64_F32; 54617df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng else 546256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = isSigned ? RTLIB::SINTTOFP_I64_F64 : RTLIB::UINTTOFP_I64_F64; 54637df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng } else { 54647df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng if (VT == MVT::f32) 546556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = isSigned ? RTLIB::SINTTOFP_I32_F32 : RTLIB::UINTTOFP_I32_F32; 54667df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng else 546756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = isSigned ? RTLIB::SINTTOFP_I32_F64 : RTLIB::UINTTOFP_I32_F64; 54687df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng } 54697df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng 54707df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng // Promote the operand if needed. 54717df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng if (getTypeAction(SrcVT) == Promote) { 54727df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng SDOperand Tmp = PromoteOp(Node->getOperand(0)); 54737df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng Tmp = isSigned 54747df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng ? DAG.getNode(ISD::SIGN_EXTEND_INREG, Tmp.getValueType(), Tmp, 54757df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng DAG.getValueType(SrcVT)) 54767df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng : DAG.getZeroExtendInReg(Tmp, SrcVT); 54777df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng Node = DAG.UpdateNodeOperands(Op, Tmp).Val; 54787df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng } 54794c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng 54804c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng const char *LibCall = TLI.getLibcallName(LC); 54814c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng if (LibCall) 54824c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng Lo = ExpandLibCall(TLI.getLibcallName(LC), Node, isSigned, Hi); 54834c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng else { 54844c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng Lo = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, VT, 54854c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng Node->getOperand(0)); 54864c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng if (getTypeAction(Lo.getValueType()) == Expand) 54874c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng ExpandOp(Lo, Lo, Hi); 54884c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng } 54897df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng break; 54907df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng } 549198ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng } 54923e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 549383397363348662e9352455ea1e6e88e7026300a4Chris Lattner // Make sure the resultant values have been legalized themselves, unless this 549483397363348662e9352455ea1e6e88e7026300a4Chris Lattner // is a type that requires multi-step expansion. 549583397363348662e9352455ea1e6e88e7026300a4Chris Lattner if (getTypeAction(NVT) != Expand && NVT != MVT::isVoid) { 549683397363348662e9352455ea1e6e88e7026300a4Chris Lattner Lo = LegalizeOp(Lo); 549713acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (Hi.Val) 549813acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng // Don't legalize the high part if it is expanded to a single node. 549913acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Hi = LegalizeOp(Hi); 550083397363348662e9352455ea1e6e88e7026300a4Chris Lattner } 550105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 550205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng // Remember in a map if the values will be reused later. 550340030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner bool isNew = ExpandedNodes.insert(std::make_pair(Op, std::make_pair(Lo, Hi))); 550405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng assert(isNew && "Value already expanded?!?"); 55053e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 55063e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 5507c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// SplitVectorOp - Given an operand of MVT::Vector type, break it down into 5508c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// two smaller values of MVT::Vector type. 5509c7029805ef35ce9805931067b841e6af11db382eChris Lattnervoid SelectionDAGLegalize::SplitVectorOp(SDOperand Op, SDOperand &Lo, 5510c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand &Hi) { 5511c7029805ef35ce9805931067b841e6af11db382eChris Lattner assert(Op.getValueType() == MVT::Vector && "Cannot split non-vector type!"); 5512c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDNode *Node = Op.Val; 5513c7029805ef35ce9805931067b841e6af11db382eChris Lattner unsigned NumElements = cast<ConstantSDNode>(*(Node->op_end()-2))->getValue(); 5514c7029805ef35ce9805931067b841e6af11db382eChris Lattner assert(NumElements > 1 && "Cannot split a single element vector!"); 5515c7029805ef35ce9805931067b841e6af11db382eChris Lattner unsigned NewNumElts = NumElements/2; 5516c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand NewNumEltsNode = DAG.getConstant(NewNumElts, MVT::i32); 5517c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand TypeNode = *(Node->op_end()-1); 5518c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5519c7029805ef35ce9805931067b841e6af11db382eChris Lattner // See if we already split it. 5520c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::map<SDOperand, std::pair<SDOperand, SDOperand> >::iterator I 5521c7029805ef35ce9805931067b841e6af11db382eChris Lattner = SplitNodes.find(Op); 5522c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (I != SplitNodes.end()) { 5523c7029805ef35ce9805931067b841e6af11db382eChris Lattner Lo = I->second.first; 5524c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi = I->second.second; 5525c7029805ef35ce9805931067b841e6af11db382eChris Lattner return; 5526c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 5527c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5528c7029805ef35ce9805931067b841e6af11db382eChris Lattner switch (Node->getOpcode()) { 5529e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey default: 5530e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 553139833585556a69de12053ca1e104fe7edfd86cbdDan Gohman Node->dump(&DAG); 5532e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 5533e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey assert(0 && "Unhandled operation in SplitVectorOp!"); 5534b2827b0901162169bb2692b77a839c9767849134Chris Lattner case ISD::VBUILD_VECTOR: { 5535bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> LoOps(Node->op_begin(), 5536bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Node->op_begin()+NewNumElts); 5537c7029805ef35ce9805931067b841e6af11db382eChris Lattner LoOps.push_back(NewNumEltsNode); 5538c7029805ef35ce9805931067b841e6af11db382eChris Lattner LoOps.push_back(TypeNode); 5539bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Lo = DAG.getNode(ISD::VBUILD_VECTOR, MVT::Vector, &LoOps[0], LoOps.size()); 5540c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5541bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> HiOps(Node->op_begin()+NewNumElts, 5542bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Node->op_end()-2); 5543c7029805ef35ce9805931067b841e6af11db382eChris Lattner HiOps.push_back(NewNumEltsNode); 5544c7029805ef35ce9805931067b841e6af11db382eChris Lattner HiOps.push_back(TypeNode); 5545bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Hi = DAG.getNode(ISD::VBUILD_VECTOR, MVT::Vector, &HiOps[0], HiOps.size()); 5546c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 5547c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 55486595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman case ISD::VCONCAT_VECTORS: { 55496595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman unsigned NewNumSubvectors = (Node->getNumOperands() - 2) / 2; 55506595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SmallVector<SDOperand, 8> LoOps(Node->op_begin(), 55516595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Node->op_begin()+NewNumSubvectors); 55526595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman LoOps.push_back(NewNumEltsNode); 55536595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman LoOps.push_back(TypeNode); 55546595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Lo = DAG.getNode(ISD::VCONCAT_VECTORS, MVT::Vector, &LoOps[0], LoOps.size()); 55556595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 55566595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SmallVector<SDOperand, 8> HiOps(Node->op_begin()+NewNumSubvectors, 55576595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Node->op_end()-2); 55586595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman HiOps.push_back(NewNumEltsNode); 55596595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman HiOps.push_back(TypeNode); 55606595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Hi = DAG.getNode(ISD::VCONCAT_VECTORS, MVT::Vector, &HiOps[0], HiOps.size()); 55616595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 55626595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } 5563c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VADD: 5564c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VSUB: 5565c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VMUL: 5566c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VSDIV: 5567c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VUDIV: 5568c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VAND: 5569c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VOR: 5570c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VXOR: { 5571c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand LL, LH, RL, RH; 5572c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitVectorOp(Node->getOperand(0), LL, LH); 5573c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitVectorOp(Node->getOperand(1), RL, RH); 5574c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5575c7029805ef35ce9805931067b841e6af11db382eChris Lattner Lo = DAG.getNode(Node->getOpcode(), MVT::Vector, LL, RL, 5576c7029805ef35ce9805931067b841e6af11db382eChris Lattner NewNumEltsNode, TypeNode); 5577c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi = DAG.getNode(Node->getOpcode(), MVT::Vector, LH, RH, 5578c7029805ef35ce9805931067b841e6af11db382eChris Lattner NewNumEltsNode, TypeNode); 5579c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 5580c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 5581c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VLOAD: { 5582c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand Ch = Node->getOperand(0); // Legalize the chain. 5583c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand Ptr = Node->getOperand(1); // Legalize the pointer. 5584c7029805ef35ce9805931067b841e6af11db382eChris Lattner MVT::ValueType EVT = cast<VTSDNode>(TypeNode)->getVT(); 5585c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5586c7029805ef35ce9805931067b841e6af11db382eChris Lattner Lo = DAG.getVecLoad(NewNumElts, EVT, Ch, Ptr, Node->getOperand(2)); 5587c7029805ef35ce9805931067b841e6af11db382eChris Lattner unsigned IncrementSize = NewNumElts * MVT::getSizeInBits(EVT)/8; 5588c7029805ef35ce9805931067b841e6af11db382eChris Lattner Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 5589c7029805ef35ce9805931067b841e6af11db382eChris Lattner getIntPtrConstant(IncrementSize)); 5590c7029805ef35ce9805931067b841e6af11db382eChris Lattner // FIXME: This creates a bogus srcvalue! 5591c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi = DAG.getVecLoad(NewNumElts, EVT, Ch, Ptr, Node->getOperand(2)); 5592c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5593c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Build a factor node to remember that this load is independent of the 5594c7029805ef35ce9805931067b841e6af11db382eChris Lattner // other one. 5595c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand TF = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 5596c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi.getValue(1)); 5597c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5598c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember that we legalized the chain. 5599c7029805ef35ce9805931067b841e6af11db382eChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(TF)); 5600c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 5601c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 56027692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner case ISD::VBIT_CONVERT: { 56037692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // We know the result is a vector. The input may be either a vector or a 56047692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // scalar value. 56057692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner if (Op.getOperand(0).getValueType() != MVT::Vector) { 56067692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // Lower to a store/load. FIXME: this could be improved probably. 56077692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner SDOperand Ptr = CreateStackTemporary(Op.getOperand(0).getValueType()); 56087692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner 5609786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng SDOperand St = DAG.getStore(DAG.getEntryNode(), 56108b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Op.getOperand(0), Ptr, NULL, 0); 56117692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner MVT::ValueType EVT = cast<VTSDNode>(TypeNode)->getVT(); 56127692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner St = DAG.getVecLoad(NumElements, EVT, St, Ptr, DAG.getSrcValue(0)); 56137692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner SplitVectorOp(St, Lo, Hi); 56147692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner } else { 56157692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // If the input is a vector type, we have to either scalarize it, pack it 56167692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // or convert it based on whether the input vector type is legal. 56177692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner SDNode *InVal = Node->getOperand(0).Val; 56187692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner unsigned NumElems = 56197692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner cast<ConstantSDNode>(*(InVal->op_end()-2))->getValue(); 56207692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner MVT::ValueType EVT = cast<VTSDNode>(*(InVal->op_end()-1))->getVT(); 56217692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner 56227692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // If the input is from a single element vector, scalarize the vector, 56237692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // then treat like a scalar. 56247692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner if (NumElems == 1) { 56257692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner SDOperand Scalar = PackVectorOp(Op.getOperand(0), EVT); 56267692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner Scalar = DAG.getNode(ISD::VBIT_CONVERT, MVT::Vector, Scalar, 56277692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner Op.getOperand(1), Op.getOperand(2)); 56287692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner SplitVectorOp(Scalar, Lo, Hi); 56297692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner } else { 56307692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // Split the input vector. 56317692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner SplitVectorOp(Op.getOperand(0), Lo, Hi); 56327692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner 56337692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // Convert each of the pieces now. 56347692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner Lo = DAG.getNode(ISD::VBIT_CONVERT, MVT::Vector, Lo, 56357692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner NewNumEltsNode, TypeNode); 56367692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner Hi = DAG.getNode(ISD::VBIT_CONVERT, MVT::Vector, Hi, 56377692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner NewNumEltsNode, TypeNode); 56387692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner } 56397692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner break; 56407692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner } 56417692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner } 5642c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 5643c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5644c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember in a map if the values will be reused later. 564540030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner bool isNew = 5646c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitNodes.insert(std::make_pair(Op, std::make_pair(Lo, Hi))).second; 5647c7029805ef35ce9805931067b841e6af11db382eChris Lattner assert(isNew && "Value already expanded?!?"); 5648c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 5649c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5650c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5651c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// PackVectorOp - Given an operand of MVT::Vector type, convert it into the 5652c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// equivalent operation that returns a scalar (e.g. F32) or packed value 5653c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// (e.g. MVT::V4F32). When this is called, we know that PackedVT is the right 5654c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// type for the result. 5655c7029805ef35ce9805931067b841e6af11db382eChris LattnerSDOperand SelectionDAGLegalize::PackVectorOp(SDOperand Op, 5656c7029805ef35ce9805931067b841e6af11db382eChris Lattner MVT::ValueType NewVT) { 5657c7029805ef35ce9805931067b841e6af11db382eChris Lattner assert(Op.getValueType() == MVT::Vector && "Bad PackVectorOp invocation!"); 5658c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDNode *Node = Op.Val; 5659c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5660c7029805ef35ce9805931067b841e6af11db382eChris Lattner // See if we already packed it. 5661c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::map<SDOperand, SDOperand>::iterator I = PackedNodes.find(Op); 5662c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (I != PackedNodes.end()) return I->second; 5663c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5664c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand Result; 5665c7029805ef35ce9805931067b841e6af11db382eChris Lattner switch (Node->getOpcode()) { 56662332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: 5667e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 566839833585556a69de12053ca1e104fe7edfd86cbdDan Gohman Node->dump(&DAG); cerr << "\n"; 5669e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 56702332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner assert(0 && "Unknown vector operation in PackVectorOp!"); 5671c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VADD: 5672c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VSUB: 5673c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VMUL: 5674c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VSDIV: 5675c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VUDIV: 5676c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VAND: 5677c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VOR: 5678c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VXOR: 5679c7029805ef35ce9805931067b841e6af11db382eChris Lattner Result = DAG.getNode(getScalarizedOpcode(Node->getOpcode(), NewVT), 5680c7029805ef35ce9805931067b841e6af11db382eChris Lattner NewVT, 5681c7029805ef35ce9805931067b841e6af11db382eChris Lattner PackVectorOp(Node->getOperand(0), NewVT), 5682c7029805ef35ce9805931067b841e6af11db382eChris Lattner PackVectorOp(Node->getOperand(1), NewVT)); 5683c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 5684c7029805ef35ce9805931067b841e6af11db382eChris Lattner case ISD::VLOAD: { 56854794a6b6a09e3440438cd653ec09cf0c2e45be1cChris Lattner SDOperand Ch = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 56864794a6b6a09e3440438cd653ec09cf0c2e45be1cChris Lattner SDOperand Ptr = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 5687c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5688466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SrcValueSDNode *SV = cast<SrcValueSDNode>(Node->getOperand(2)); 5689466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getLoad(NewVT, Ch, Ptr, SV->getValue(), SV->getOffset()); 5690c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5691c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember that we legalized the chain. 5692c7029805ef35ce9805931067b841e6af11db382eChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 5693c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 5694c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 5695b2827b0901162169bb2692b77a839c9767849134Chris Lattner case ISD::VBUILD_VECTOR: 569670c2a61e0a0fb0a7e8b9bddd26bdcc92762772f0Chris Lattner if (Node->getOperand(0).getValueType() == NewVT) { 5697b2827b0901162169bb2692b77a839c9767849134Chris Lattner // Returning a scalar? 5698c7029805ef35ce9805931067b841e6af11db382eChris Lattner Result = Node->getOperand(0); 5699c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else { 5700b2827b0901162169bb2692b77a839c9767849134Chris Lattner // Returning a BUILD_VECTOR? 570117614ea63db9189050b6ca0310f535d12bdedb81Chris Lattner 570217614ea63db9189050b6ca0310f535d12bdedb81Chris Lattner // If all elements of the build_vector are undefs, return an undef. 570317614ea63db9189050b6ca0310f535d12bdedb81Chris Lattner bool AllUndef = true; 570417614ea63db9189050b6ca0310f535d12bdedb81Chris Lattner for (unsigned i = 0, e = Node->getNumOperands()-2; i != e; ++i) 570517614ea63db9189050b6ca0310f535d12bdedb81Chris Lattner if (Node->getOperand(i).getOpcode() != ISD::UNDEF) { 570617614ea63db9189050b6ca0310f535d12bdedb81Chris Lattner AllUndef = false; 570717614ea63db9189050b6ca0310f535d12bdedb81Chris Lattner break; 570817614ea63db9189050b6ca0310f535d12bdedb81Chris Lattner } 570917614ea63db9189050b6ca0310f535d12bdedb81Chris Lattner if (AllUndef) { 571017614ea63db9189050b6ca0310f535d12bdedb81Chris Lattner Result = DAG.getNode(ISD::UNDEF, NewVT); 571117614ea63db9189050b6ca0310f535d12bdedb81Chris Lattner } else { 5712bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Result = DAG.getNode(ISD::BUILD_VECTOR, NewVT, Node->op_begin(), 5713bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Node->getNumOperands()-2); 571417614ea63db9189050b6ca0310f535d12bdedb81Chris Lattner } 5715c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 5716c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 57176595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman case ISD::VCONCAT_VECTORS: 57186595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman assert(Node->getOperand(0).getValueType() == NewVT && 57196595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman "Concat of non-legal vectors not yet supported!"); 57206595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Result = Node->getOperand(0); 57216595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 57222332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case ISD::VINSERT_VECTOR_ELT: 57232332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner if (!MVT::isVector(NewVT)) { 57242332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // Returning a scalar? Must be the inserted element. 57252332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = Node->getOperand(1); 57262332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } else { 57272332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = DAG.getNode(ISD::INSERT_VECTOR_ELT, NewVT, 57282332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner PackVectorOp(Node->getOperand(0), NewVT), 57292332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Node->getOperand(1), Node->getOperand(2)); 57302332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 57312332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 57326595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman case ISD::VEXTRACT_SUBVECTOR: 57336595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Result = PackVectorOp(Node->getOperand(0), NewVT); 57346595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman assert(Result.getValueType() == NewVT); 57356595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 57365b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner case ISD::VVECTOR_SHUFFLE: 57375b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner if (!MVT::isVector(NewVT)) { 57385b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner // Returning a scalar? Figure out if it is the LHS or RHS and return it. 57395b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner SDOperand EltNum = Node->getOperand(2).getOperand(0); 57405b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner if (cast<ConstantSDNode>(EltNum)->getValue()) 57415b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner Result = PackVectorOp(Node->getOperand(1), NewVT); 57425b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner else 57435b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner Result = PackVectorOp(Node->getOperand(0), NewVT); 57445b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner } else { 57455b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner // Otherwise, return a VECTOR_SHUFFLE node. First convert the index 57465b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner // vector from a VBUILD_VECTOR to a BUILD_VECTOR. 57475b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner std::vector<SDOperand> BuildVecIdx(Node->getOperand(2).Val->op_begin(), 57485b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner Node->getOperand(2).Val->op_end()-2); 57495b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner MVT::ValueType BVT = MVT::getIntVectorWithNumElements(BuildVecIdx.size()); 5750bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand BV = DAG.getNode(ISD::BUILD_VECTOR, BVT, 5751bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Node->getOperand(2).Val->op_begin(), 5752bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Node->getOperand(2).Val->getNumOperands()-2); 57535b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner 57545b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner Result = DAG.getNode(ISD::VECTOR_SHUFFLE, NewVT, 57555b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner PackVectorOp(Node->getOperand(0), NewVT), 57565b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner PackVectorOp(Node->getOperand(1), NewVT), BV); 57575b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner } 57585b2316e2b06e0fb6aea31d9d3eb61376b40c23a6Chris Lattner break; 5759e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner case ISD::VBIT_CONVERT: 5760e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner if (Op.getOperand(0).getValueType() != MVT::Vector) 5761e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner Result = DAG.getNode(ISD::BIT_CONVERT, NewVT, Op.getOperand(0)); 5762e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner else { 5763e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner // If the input is a vector type, we have to either scalarize it, pack it 5764e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner // or convert it based on whether the input vector type is legal. 5765e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner SDNode *InVal = Node->getOperand(0).Val; 5766e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner unsigned NumElems = 5767e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner cast<ConstantSDNode>(*(InVal->op_end()-2))->getValue(); 5768e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner MVT::ValueType EVT = cast<VTSDNode>(*(InVal->op_end()-1))->getVT(); 5769e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner 5770e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner // Figure out if there is a Packed type corresponding to this Vector 5771ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // type. If so, convert to the vector type. 5772e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 5773e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner if (TVT != MVT::Other && TLI.isTypeLegal(TVT)) { 5774e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner // Turn this into a bit convert of the packed input. 5775e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner Result = DAG.getNode(ISD::BIT_CONVERT, NewVT, 5776e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner PackVectorOp(Node->getOperand(0), TVT)); 5777e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner break; 5778e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner } else if (NumElems == 1) { 5779e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner // Turn this into a bit convert of the scalar input. 5780e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner Result = DAG.getNode(ISD::BIT_CONVERT, NewVT, 5781e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner PackVectorOp(Node->getOperand(0), EVT)); 5782e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner break; 5783e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner } else { 5784b464c446791f03cd8abc0b55bab4d472de534218Chris Lattner // If the input vector type isn't legal, then go through memory. 5785b464c446791f03cd8abc0b55bab4d472de534218Chris Lattner SDOperand Ptr = CreateStackTemporary(NewVT); 5786b464c446791f03cd8abc0b55bab4d472de534218Chris Lattner // Get the alignment for the store. 5787b464c446791f03cd8abc0b55bab4d472de534218Chris Lattner const TargetData &TD = *TLI.getTargetData(); 5788b464c446791f03cd8abc0b55bab4d472de534218Chris Lattner unsigned Align = 5789b464c446791f03cd8abc0b55bab4d472de534218Chris Lattner TD.getABITypeAlignment(MVT::getTypeForValueType(NewVT)); 5790b464c446791f03cd8abc0b55bab4d472de534218Chris Lattner 5791b464c446791f03cd8abc0b55bab4d472de534218Chris Lattner SDOperand St = DAG.getStore(DAG.getEntryNode(), 5792b464c446791f03cd8abc0b55bab4d472de534218Chris Lattner Node->getOperand(0), Ptr, NULL, 0, false, 5793b464c446791f03cd8abc0b55bab4d472de534218Chris Lattner Align); 5794b464c446791f03cd8abc0b55bab4d472de534218Chris Lattner Result = DAG.getLoad(NewVT, St, Ptr, 0, 0); 5795b464c446791f03cd8abc0b55bab4d472de534218Chris Lattner break; 5796e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner } 5797e25ca692c0478af5e15170fce23cea2a5b5fd0b9Chris Lattner } 5798db3c626eb9e85e9192dbee59ff0c4d143c37c94dEvan Cheng break; 5799b22e35a3c3bec07f5559c1476b3143e0d6d64269Chris Lattner case ISD::VSELECT: 5800b22e35a3c3bec07f5559c1476b3143e0d6d64269Chris Lattner Result = DAG.getNode(ISD::SELECT, NewVT, Op.getOperand(0), 5801b22e35a3c3bec07f5559c1476b3143e0d6d64269Chris Lattner PackVectorOp(Op.getOperand(1), NewVT), 5802b22e35a3c3bec07f5559c1476b3143e0d6d64269Chris Lattner PackVectorOp(Op.getOperand(2), NewVT)); 5803b22e35a3c3bec07f5559c1476b3143e0d6d64269Chris Lattner break; 5804c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 5805c7029805ef35ce9805931067b841e6af11db382eChris Lattner 5806c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (TLI.isTypeLegal(NewVT)) 5807c7029805ef35ce9805931067b841e6af11db382eChris Lattner Result = LegalizeOp(Result); 5808c7029805ef35ce9805931067b841e6af11db382eChris Lattner bool isNew = PackedNodes.insert(std::make_pair(Op, Result)).second; 5809c7029805ef35ce9805931067b841e6af11db382eChris Lattner assert(isNew && "Value already packed?"); 5810c7029805ef35ce9805931067b841e6af11db382eChris Lattner return Result; 5811c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 5812c7029805ef35ce9805931067b841e6af11db382eChris Lattner 58133e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 58143e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// SelectionDAG::Legalize - This is the entry point for the file. 58153e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// 58169c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattnervoid SelectionDAG::Legalize() { 58175e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner if (ViewLegalizeDAGs) viewGraph(); 58185e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner 58193e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// run - This is the main entry point to this class. 58203e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// 5821456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SelectionDAGLegalize(*this).LegalizeDAG(); 58223e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 58233e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 5824