CodeGenFunction.h revision 3ea9e33ea25e0c2b12db56418ba3f994eb662c04
1bd012ff1fa088181646a784f385b28867372d434Daniel Dunbar//===-- CodeGenFunction.h - Per-Function state for LLVM CodeGen -*- C++ -*-===// 25f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 35f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// The LLVM Compiler Infrastructure 45f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 50bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// This file is distributed under the University of Illinois Open Source 60bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// License. See LICENSE.TXT for details. 75f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 85f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 95f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 100dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump// This is the internal per-function state used for llvm translation. 115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines#ifndef LLVM_CLANG_LIB_CODEGEN_CODEGENFUNCTION_H 15176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines#define LLVM_CLANG_LIB_CODEGEN_CODEGENFUNCTION_H 165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1755fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "CGBuilder.h" 1855fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "CGDebugInfo.h" 196bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines#include "CGLoopInfo.h" 2055fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "CGValue.h" 2155fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "CodeGenModule.h" 22651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines#include "CodeGenPGO.h" 23651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines#include "EHScopeStack.h" 2455fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/AST/CharUnits.h" 25e3a09e6ad09f8d1387ecaa008aaf85527909da0aArgyrios Kyrtzidis#include "clang/AST/ExprCXX.h" 265549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek#include "clang/AST/ExprObjC.h" 2755fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/AST/Type.h" 2814110477887e3dc168ffc6c191e72d705051f99ePeter Collingbourne#include "clang/Basic/ABI.h" 29524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir#include "clang/Basic/CapturedStmt.h" 300e2c34f92f00628d48968dfea096d36381f494cbStephen Hines#include "clang/Basic/OpenMPKinds.h" 31481769b5dc102b0256b35581e787909ad5edfab5Chris Lattner#include "clang/Basic/TargetInfo.h" 3255fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/Frontend/CodeGenOptions.h" 334c7d9f1507d0f102bd4133bba63348636facd469Jay Foad#include "llvm/ADT/ArrayRef.h" 34481769b5dc102b0256b35581e787909ad5edfab5Chris Lattner#include "llvm/ADT/DenseMap.h" 35481769b5dc102b0256b35581e787909ad5edfab5Chris Lattner#include "llvm/ADT/SmallVector.h" 36651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines#include "llvm/IR/ValueHandle.h" 37c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher#include "llvm/Support/Debug.h" 388f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar 395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace llvm { 406bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hinesclass BasicBlock; 416bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hinesclass LLVMContext; 426bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hinesclass MDNode; 436bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hinesclass Module; 446bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hinesclass SwitchInst; 456bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hinesclass Twine; 466bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hinesclass Value; 476bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hinesclass CallSite; 485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace clang { 516bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hinesclass ASTContext; 526bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hinesclass BlockDecl; 536bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hinesclass CXXDestructorDecl; 546bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hinesclass CXXForRangeStmt; 556bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hinesclass CXXTryStmt; 566bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hinesclass Decl; 576bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hinesclass LabelDecl; 586bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hinesclass EnumConstantDecl; 596bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hinesclass FunctionDecl; 606bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hinesclass FunctionProtoType; 616bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hinesclass LabelStmt; 626bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hinesclass ObjCContainerDecl; 636bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hinesclass ObjCInterfaceDecl; 646bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hinesclass ObjCIvarDecl; 656bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hinesclass ObjCMethodDecl; 666bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hinesclass ObjCImplementationDecl; 676bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hinesclass ObjCPropertyImplDecl; 686bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hinesclass TargetInfo; 696bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hinesclass TargetCodeGenInfo; 706bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hinesclass VarDecl; 716bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hinesclass ObjCForCollectionStmt; 726bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hinesclass ObjCAtTryStmt; 736bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hinesclass ObjCAtThrowStmt; 746bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hinesclass ObjCAtSynchronizedStmt; 756bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hinesclass ObjCAutoreleasePoolStmt; 765549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek 775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace CodeGen { 786bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hinesclass CodeGenTypes; 796bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hinesclass CGFunctionInfo; 806bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hinesclass CGRecordLayout; 816bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hinesclass CGBlockInfo; 826bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hinesclass CGCXXABI; 836bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hinesclass BlockFlags; 846bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hinesclass BlockFieldFlags; 850dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 869d232c884ea9872d6555df0fd7359699819bc1f1John McCall/// The kind of evaluation to perform on values of a particular 879d232c884ea9872d6555df0fd7359699819bc1f1John McCall/// type. Basically, is the code in CGExprScalar, CGExprComplex, or 889d232c884ea9872d6555df0fd7359699819bc1f1John McCall/// CGExprAgg? 899d232c884ea9872d6555df0fd7359699819bc1f1John McCall/// 909d232c884ea9872d6555df0fd7359699819bc1f1John McCall/// TODO: should vectors maybe be split out into their own thing? 919d232c884ea9872d6555df0fd7359699819bc1f1John McCallenum TypeEvaluationKind { 929d232c884ea9872d6555df0fd7359699819bc1f1John McCall TEK_Scalar, 939d232c884ea9872d6555df0fd7359699819bc1f1John McCall TEK_Complex, 949d232c884ea9872d6555df0fd7359699819bc1f1John McCall TEK_Aggregate 959d232c884ea9872d6555df0fd7359699819bc1f1John McCall}; 969d232c884ea9872d6555df0fd7359699819bc1f1John McCall 975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// CodeGenFunction - This class organizes the per-function state that is used 985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// while generating LLVM code. 995936e33bf74dd6bf126ceee0f6169a2593d03a69John McCallclass CodeGenFunction : public CodeGenTypeCache { 1000e2c34f92f00628d48968dfea096d36381f494cbStephen Hines CodeGenFunction(const CodeGenFunction &) = delete; 1010e2c34f92f00628d48968dfea096d36381f494cbStephen Hines void operator=(const CodeGenFunction &) = delete; 1024c40d98ab7acf5f27fa89b17bd8fc0ef7683df37John McCall 1034c40d98ab7acf5f27fa89b17bd8fc0ef7683df37John McCall friend class CGCXXABI; 104bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattnerpublic: 105ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall /// A jump destination is an abstract label, branching to which may 106ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall /// require a jump out through normal cleanups. 107f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall struct JumpDest { 1086bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines JumpDest() : Block(nullptr), ScopeDepth(), Index(0) {} 109ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall JumpDest(llvm::BasicBlock *Block, 110ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall EHScopeStack::stable_iterator Depth, 111ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall unsigned Index) 112ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall : Block(Block), ScopeDepth(Depth), Index(Index) {} 113ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall 1146bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines bool isValid() const { return Block != nullptr; } 115ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall llvm::BasicBlock *getBlock() const { return Block; } 116ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall EHScopeStack::stable_iterator getScopeDepth() const { return ScopeDepth; } 117ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall unsigned getDestIndex() const { return Index; } 1189cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 119495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem // This should be used cautiously. 120495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem void setScopeDepth(EHScopeStack::stable_iterator depth) { 121495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem ScopeDepth = depth; 122495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem } 123495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem 124ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall private: 125f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *Block; 126f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall EHScopeStack::stable_iterator ScopeDepth; 127ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall unsigned Index; 128ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall }; 129ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall 1305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CodeGenModule &CGM; // Per-module state. 131444be7366d0a1e172c0290a1ea54c1cb16b5947cDaniel Dunbar const TargetInfo &Target; 1320dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 13358dee10ed2eee34035f62d1c2d32b3639e9182f8Chris Lattner typedef std::pair<llvm::Value *, llvm::Value *> ComplexPairTy; 1346bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines LoopInfoStack LoopStack; 13545d196b8387dcefc4df26cda114fa34c6528e928Daniel Dunbar CGBuilderTy Builder; 1360dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1376bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines /// \brief CGBuilder insert helper. This function is called after an 1386bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines /// instruction is created using Builder. 1396bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines void InsertHelper(llvm::Instruction *I, const llvm::Twine &Name, 1406bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines llvm::BasicBlock *BB, 1416bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines llvm::BasicBlock::iterator InsertPt) const; 1426bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines 143f5ebf9bf1df10ac15ba32a4b24dfe171b7848c58John McCall /// CurFuncDecl - Holds the Decl for the current outermost 144f5ebf9bf1df10ac15ba32a4b24dfe171b7848c58John McCall /// non-closure context. 1454111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner const Decl *CurFuncDecl; 146b5437d238752dc297e42410e98d38d5250fe0463Chris Lattner /// CurCodeDecl - This is the inner-most code context, which includes blocks. 147b5437d238752dc297e42410e98d38d5250fe0463Chris Lattner const Decl *CurCodeDecl; 14888b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar const CGFunctionInfo *CurFnInfo; 149391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner QualType FnRetTy; 1505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::Function *CurFn; 1515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1526a1e0eb557d47e85185e09bdf8721f53f4bf9c9cMike Stump /// CurGD - The GlobalDecl for the current function being compiled. 1536a1e0eb557d47e85185e09bdf8721f53f4bf9c9cMike Stump GlobalDecl CurGD; 1546a1e0eb557d47e85185e09bdf8721f53f4bf9c9cMike Stump 155f85e193739c953358c865005855253af4f68a497John McCall /// PrologueCleanupDepth - The cleanup depth enclosing all the 156f85e193739c953358c865005855253af4f68a497John McCall /// cleanups associated with the parameters. 157f85e193739c953358c865005855253af4f68a497John McCall EHScopeStack::stable_iterator PrologueCleanupDepth; 158f85e193739c953358c865005855253af4f68a497John McCall 1595ca2084cf9b529563209429857f01fdae9dcdfa5Daniel Dunbar /// ReturnBlock - Unified return block. 160f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall JumpDest ReturnBlock; 161f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 1620dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// ReturnValue - The temporary alloca to hold the return value. This is null 163f3477c13eeaf11b32a41f181398fb5deffd0dd73Sylvestre Ledru /// iff the function has no return value. 164b17daf9ab790ae71aacad2cc4aa11cd8d86c25d1Eli Friedman llvm::Value *ReturnValue; 1650dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// AllocaInsertPoint - This is an instruction in the entry block before which 1675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// we prefer to insert allocas. 168481769b5dc102b0256b35581e787909ad5edfab5Chris Lattner llvm::AssertingVH<llvm::Instruction> AllocaInsertPt; 1690ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar 170524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir /// \brief API for captured statement code generation. 171524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir class CGCapturedStmtInfo { 172524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir public: 1730e2c34f92f00628d48968dfea096d36381f494cbStephen Hines explicit CGCapturedStmtInfo(CapturedRegionKind K = CR_Default) 1740e2c34f92f00628d48968dfea096d36381f494cbStephen Hines : Kind(K), ThisValue(nullptr), CXXThisFieldDecl(nullptr) {} 175524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir explicit CGCapturedStmtInfo(const CapturedStmt &S, 176524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir CapturedRegionKind K = CR_Default) 1776bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines : Kind(K), ThisValue(nullptr), CXXThisFieldDecl(nullptr) { 178524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir 179524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir RecordDecl::field_iterator Field = 180524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir S.getCapturedRecordDecl()->field_begin(); 181524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir for (CapturedStmt::const_capture_iterator I = S.capture_begin(), 182524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir E = S.capture_end(); 183524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir I != E; ++I, ++Field) { 184524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir if (I->capturesThis()) 185524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir CXXThisFieldDecl = *Field; 186176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines else if (I->capturesVariable()) 187524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir CaptureFields[I->getCapturedVar()] = *Field; 188524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir } 189524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir } 190524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir 191524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir virtual ~CGCapturedStmtInfo(); 192524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir 193524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir CapturedRegionKind getKind() const { return Kind; } 194524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir 195524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir void setContextValue(llvm::Value *V) { ThisValue = V; } 196524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir // \brief Retrieve the value of the context parameter. 1970e2c34f92f00628d48968dfea096d36381f494cbStephen Hines virtual llvm::Value *getContextValue() const { return ThisValue; } 198524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir 199524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir /// \brief Lookup the captured field decl for a variable. 2000e2c34f92f00628d48968dfea096d36381f494cbStephen Hines virtual const FieldDecl *lookup(const VarDecl *VD) const { 201524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir return CaptureFields.lookup(VD); 202524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir } 203524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir 2040e2c34f92f00628d48968dfea096d36381f494cbStephen Hines bool isCXXThisExprCaptured() const { return getThisFieldDecl() != nullptr; } 2050e2c34f92f00628d48968dfea096d36381f494cbStephen Hines virtual FieldDecl *getThisFieldDecl() const { return CXXThisFieldDecl; } 206524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir 207176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines static bool classof(const CGCapturedStmtInfo *) { 208176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines return true; 209176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines } 210176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines 211524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir /// \brief Emit the captured statement body. 2120e2c34f92f00628d48968dfea096d36381f494cbStephen Hines virtual void EmitBody(CodeGenFunction &CGF, const Stmt *S) { 2136bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines RegionCounter Cnt = CGF.getPGORegionCounter(S); 2146bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Cnt.beginRegion(CGF.Builder); 215524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir CGF.EmitStmt(S); 216524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir } 217524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir 218524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir /// \brief Get the name of the capture helper. 219524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir virtual StringRef getHelperName() const { return "__captured_stmt"; } 220524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir 221524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir private: 222524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir /// \brief The kind of captured statement being generated. 223524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir CapturedRegionKind Kind; 224524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir 225524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir /// \brief Keep the map between VarDecl and FieldDecl. 226524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir llvm::SmallDenseMap<const VarDecl *, FieldDecl *> CaptureFields; 227524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir 228524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir /// \brief The base address of the captured record, passed in as the first 229524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir /// argument of the parallel region function. 230524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir llvm::Value *ThisValue; 231524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir 232524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir /// \brief Captured 'this' type. 233524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir FieldDecl *CXXThisFieldDecl; 234524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir }; 235524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir CGCapturedStmtInfo *CapturedStmtInfo; 236524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir 237b3198a841e7f356f171f1e11faff014b2deb1eb8Nuno Lopes /// BoundsChecking - Emit run-time bounds checks. Higher values mean 238b3198a841e7f356f171f1e11faff014b2deb1eb8Nuno Lopes /// potentially higher performance penalties. 239b3198a841e7f356f171f1e11faff014b2deb1eb8Nuno Lopes unsigned char BoundsChecking; 240b3198a841e7f356f171f1e11faff014b2deb1eb8Nuno Lopes 241176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines /// \brief Sanitizers enabled for this function. 242176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines SanitizerSet SanOpts; 243176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines 244176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines /// \brief True if CodeGen currently emits code implementing sanitizer checks. 245176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines bool IsSanitizerScope; 246176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines 247176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines /// \brief RAII object to set/unset CodeGenFunction::IsSanitizerScope. 248176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines class SanitizerScope { 249176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines CodeGenFunction *CGF; 250176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines public: 251176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines SanitizerScope(CodeGenFunction *CGF); 252176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines ~SanitizerScope(); 253176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines }; 254176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines 255176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines /// In C++, whether we are code generating a thunk. This controls whether we 256176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines /// should emit cleanups. 257176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines bool CurFuncIsThunk; 2584f45bc099f2665bc6e4bcbb169aa452390dbf3feWill Dietz 259f85e193739c953358c865005855253af4f68a497John McCall /// In ARC, whether we should autorelease the return value. 260f85e193739c953358c865005855253af4f68a497John McCall bool AutoreleaseResult; 261f85e193739c953358c865005855253af4f68a497John McCall 262176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines /// Whether we processed a Microsoft-style asm block during CodeGen. These can 263176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines /// potentially set the return value. 264176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines bool SawAsmBlock; 265176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines 266d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall const CodeGen::CGBlockInfo *BlockInfo; 267d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall llvm::Value *BlockPointer; 268d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall 269cec5ebd4a6a89a7023d04cec728fd340b541ed61Eli Friedman llvm::DenseMap<const VarDecl *, FieldDecl *> LambdaCaptureFields; 270cec5ebd4a6a89a7023d04cec728fd340b541ed61Eli Friedman FieldDecl *LambdaThisCaptureField; 271cec5ebd4a6a89a7023d04cec728fd340b541ed61Eli Friedman 2723d91bbcdab155181556969cad6ec97014405acedDouglas Gregor /// \brief A mapping from NRVO variables to the flags used to indicate 2733d91bbcdab155181556969cad6ec97014405acedDouglas Gregor /// when the NRVO has been applied to this variable. 2743d91bbcdab155181556969cad6ec97014405acedDouglas Gregor llvm::DenseMap<const VarDecl *, llvm::Value *> NRVOFlags; 2759cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 276f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall EHScopeStack EHStack; 2778a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith llvm::SmallVector<char, 256> LifetimeExtendedCleanupStack; 2780e2c34f92f00628d48968dfea096d36381f494cbStephen Hines llvm::SmallVector<const JumpDest *, 2> SEHTryEpilogueStack; 2798a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith 2808a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith /// Header for data within LifetimeExtendedCleanupStack. 2818a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith struct LifetimeExtendedCleanupHeader { 2828a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith /// The size of the following cleanup object. 283176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines unsigned Size : 29; 2848a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith /// The kind of cleanup to push: a value from the CleanupKind enumeration. 2858a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith unsigned Kind : 3; 2868a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith 287176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines size_t getSize() const { return size_t(Size); } 2888a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith CleanupKind getKind() const { return static_cast<CleanupKind>(Kind); } 2898a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith }; 2900dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 291ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall /// i32s containing the indexes of the cleanup destinations. 292ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall llvm::AllocaInst *NormalCleanupDest; 293ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall 294ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall unsigned NextCleanupDestIndex; 295ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall 2961a343ebbf413e8eae6b2737b2b2d79cbf5765571John McCall /// FirstBlockInfo - The head of a singly-linked-list of block layouts. 2971a343ebbf413e8eae6b2737b2b2d79cbf5765571John McCall CGBlockInfo *FirstBlockInfo; 2981a343ebbf413e8eae6b2737b2b2d79cbf5765571John McCall 299777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall /// EHResumeBlock - Unified block containing a call to llvm.eh.resume. 300777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall llvm::BasicBlock *EHResumeBlock; 301777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall 302285cfd8953d4ca4da613a47a0d691f7234068f8cBill Wendling /// The exception slot. All landing pads write the current exception pointer 303285cfd8953d4ca4da613a47a0d691f7234068f8cBill Wendling /// into this alloca. 304f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::Value *ExceptionSlot; 3050dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 306285cfd8953d4ca4da613a47a0d691f7234068f8cBill Wendling /// The selector slot. Under the MandatoryCleanup model, all landing pads 307285cfd8953d4ca4da613a47a0d691f7234068f8cBill Wendling /// write the current selector value into this alloca. 30893c332a8ba2c193c435b293966d343dab15f555bJohn McCall llvm::AllocaInst *EHSelectorSlot; 30993c332a8ba2c193c435b293966d343dab15f555bJohn McCall 3100e2c34f92f00628d48968dfea096d36381f494cbStephen Hines llvm::AllocaInst *AbnormalTerminationSlot; 3110e2c34f92f00628d48968dfea096d36381f494cbStephen Hines 3120e2c34f92f00628d48968dfea096d36381f494cbStephen Hines /// The implicit parameter to SEH filter functions of type 3130e2c34f92f00628d48968dfea096d36381f494cbStephen Hines /// 'EXCEPTION_POINTERS*'. 3140e2c34f92f00628d48968dfea096d36381f494cbStephen Hines ImplicitParamDecl *SEHPointersDecl; 3150e2c34f92f00628d48968dfea096d36381f494cbStephen Hines 316f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Emits a landing pad for the current EH stack. 317f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *EmitLandingPad(); 3180dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 319f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *getInvokeDestImpl(); 32099533834ba8f3658559f334e68a518ebb6388ceaMike Stump 321150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall template <class T> 322804b807ea918184d6de63bd745e1ff75a9bfc679John McCall typename DominatingValue<T>::saved_type saveValueInCond(T value) { 323804b807ea918184d6de63bd745e1ff75a9bfc679John McCall return DominatingValue<T>::save(*this, value); 324150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 325150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 326f1549f66a8216a78112286e3978cea2c29d6334cJohn McCallpublic: 327f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// ObjCEHValueStack - Stack of Objective-C exception values, used for 328f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// rethrows. 329686775deca8b8685eb90801495880e3abdd844c2Chris Lattner SmallVector<llvm::Value*, 8> ObjCEHValueStack; 330bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson 331d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall /// A class controlling the emission of a finally block. 332d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall class FinallyInfo { 333d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall /// Where the catchall's edge through the cleanup should go. 334d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall JumpDest RethrowDest; 335d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall 336d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall /// A function to call to enter the catch. 337d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall llvm::Constant *BeginCatchFn; 338d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall 339d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall /// An i1 variable indicating whether or not the @finally is 340d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall /// running for an exception. 341d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall llvm::AllocaInst *ForEHVar; 342d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump 343d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall /// An i8* variable into which the exception pointer to rethrow 344d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall /// has been saved. 345d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall llvm::AllocaInst *SavedExnVar; 346d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall 347d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall public: 348d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall void enter(CodeGenFunction &CGF, const Stmt *Finally, 349d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall llvm::Constant *beginCatchFn, llvm::Constant *endCatchFn, 350d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall llvm::Constant *rethrowFn); 351d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall void exit(CodeGenFunction &CGF); 352d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall }; 353f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 3540e2c34f92f00628d48968dfea096d36381f494cbStephen Hines /// Cleanups can be emitted for two reasons: normal control leaving a region 3550e2c34f92f00628d48968dfea096d36381f494cbStephen Hines /// exceptional control flow leaving a region. 3560e2c34f92f00628d48968dfea096d36381f494cbStephen Hines struct SEHFinallyInfo { 3570e2c34f92f00628d48968dfea096d36381f494cbStephen Hines SEHFinallyInfo() 3580e2c34f92f00628d48968dfea096d36381f494cbStephen Hines : FinallyBB(nullptr), ContBB(nullptr), ResumeBB(nullptr) {} 3590e2c34f92f00628d48968dfea096d36381f494cbStephen Hines 3600e2c34f92f00628d48968dfea096d36381f494cbStephen Hines llvm::BasicBlock *FinallyBB; 3610e2c34f92f00628d48968dfea096d36381f494cbStephen Hines llvm::BasicBlock *ContBB; 3620e2c34f92f00628d48968dfea096d36381f494cbStephen Hines llvm::BasicBlock *ResumeBB; 3630e2c34f92f00628d48968dfea096d36381f494cbStephen Hines }; 3640e2c34f92f00628d48968dfea096d36381f494cbStephen Hines 3650e2c34f92f00628d48968dfea096d36381f494cbStephen Hines /// Returns true inside SEH __try blocks. 3660e2c34f92f00628d48968dfea096d36381f494cbStephen Hines bool isSEHTryScope() const { return !SEHTryEpilogueStack.empty(); } 3670e2c34f92f00628d48968dfea096d36381f494cbStephen Hines 368150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// pushFullExprCleanup - Push a cleanup to be run at the end of the 369150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// current full-expression. Safe against the possibility that 370150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// we're currently inside a conditionally-evaluated expression. 3713ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar template <class T, class... As> 3723ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar void pushFullExprCleanup(CleanupKind kind, As... A) { 3733ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall // If we're not in a conditional branch, or if none of the 3743ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall // arguments requires saving, then use the unconditional cleanup. 375c4a1a8450a3613ef256a71b9d8305b41f79eef50John McCall if (!isInConditionalBranch()) 3763ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar return EHStack.pushCleanup<T>(kind, A...); 3773ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall 3783ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar // Stash values in a tuple so we can guarantee the order of saves. 3793ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar typedef std::tuple<typename DominatingValue<As>::saved_type...> SavedTuple; 3803ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar SavedTuple Saved{saveValueInCond(A)...}; 3813ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall 3823ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar typedef EHScopeStack::ConditionalCleanup<T, As...> CleanupType; 3833ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar EHStack.pushCleanupTuple<CleanupType>(kind, Saved); 3849928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall initFullExprCleanup(); 3859928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall } 3869928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall 3878a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith /// \brief Queue a cleanup to be pushed after finishing the current 3888a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith /// full-expression. 3893ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar template <class T, class... As> 3903ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar void pushCleanupAfterFullExpr(CleanupKind Kind, As... A) { 3918a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith assert(!isInConditionalBranch() && "can't defer conditional cleanup"); 3928a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith 3938a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith LifetimeExtendedCleanupHeader Header = { sizeof(T), Kind }; 3948a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith 3958a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith size_t OldSize = LifetimeExtendedCleanupStack.size(); 3968a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith LifetimeExtendedCleanupStack.resize( 3978a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith LifetimeExtendedCleanupStack.size() + sizeof(Header) + Header.Size); 3988a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith 3998a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith char *Buffer = &LifetimeExtendedCleanupStack[OldSize]; 4008a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith new (Buffer) LifetimeExtendedCleanupHeader(Header); 4013ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar new (Buffer + sizeof(Header)) T(A...); 4028a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith } 4038a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith 4046f103ba42cb69d50005a977c5ea583984ab63fc4John McCall /// Set up the last cleaup that was pushed as a conditional 4056f103ba42cb69d50005a977c5ea583984ab63fc4John McCall /// full-expression cleanup. 4066f103ba42cb69d50005a977c5ea583984ab63fc4John McCall void initFullExprCleanup(); 4076f103ba42cb69d50005a977c5ea583984ab63fc4John McCall 408f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// PushDestructorCleanup - Push a cleanup to call the 409f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// complete-object destructor of an object of the given type at the 410f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// given address. Does nothing if T is not a C++ class type with a 411f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// non-trivial destructor. 412f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall void PushDestructorCleanup(QualType T, llvm::Value *Addr); 413f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 41481407d404a3fc8d24d0e2a052d85cae183033e2bJohn McCall /// PushDestructorCleanup - Push a cleanup to call the 41581407d404a3fc8d24d0e2a052d85cae183033e2bJohn McCall /// complete-object variant of the given destructor on the object at 41681407d404a3fc8d24d0e2a052d85cae183033e2bJohn McCall /// the given address. 41781407d404a3fc8d24d0e2a052d85cae183033e2bJohn McCall void PushDestructorCleanup(const CXXDestructorDecl *Dtor, 41881407d404a3fc8d24d0e2a052d85cae183033e2bJohn McCall llvm::Value *Addr); 41981407d404a3fc8d24d0e2a052d85cae183033e2bJohn McCall 420f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// PopCleanupBlock - Will pop the cleanup entry on the stack and 421f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// process all branch fixups. 4221c3db769249a633108dc320da87c48a432e2bcc1Adrian Prantl void PopCleanupBlock(bool FallThroughIsBranchThrough = false); 423f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 4247d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// DeactivateCleanupBlock - Deactivates the given cleanup block. 4257d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// The block cannot be reactivated. Pops it if it's the top of the 4267d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// stack. 4276f103ba42cb69d50005a977c5ea583984ab63fc4John McCall /// 4286f103ba42cb69d50005a977c5ea583984ab63fc4John McCall /// \param DominatingIP - An instruction which is known to 4296f103ba42cb69d50005a977c5ea583984ab63fc4John McCall /// dominate the current IP (if set) and which lies along 4306f103ba42cb69d50005a977c5ea583984ab63fc4John McCall /// all paths of execution between the current IP and the 4316f103ba42cb69d50005a977c5ea583984ab63fc4John McCall /// the point at which the cleanup comes into scope. 4326f103ba42cb69d50005a977c5ea583984ab63fc4John McCall void DeactivateCleanupBlock(EHScopeStack::stable_iterator Cleanup, 4336f103ba42cb69d50005a977c5ea583984ab63fc4John McCall llvm::Instruction *DominatingIP); 4347d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall 4357d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// ActivateCleanupBlock - Activates an initially-inactive cleanup. 4367d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// Cannot be used to resurrect a deactivated cleanup. 4376f103ba42cb69d50005a977c5ea583984ab63fc4John McCall /// 4386f103ba42cb69d50005a977c5ea583984ab63fc4John McCall /// \param DominatingIP - An instruction which is known to 4396f103ba42cb69d50005a977c5ea583984ab63fc4John McCall /// dominate the current IP (if set) and which lies along 4406f103ba42cb69d50005a977c5ea583984ab63fc4John McCall /// all paths of execution between the current IP and the 4416f103ba42cb69d50005a977c5ea583984ab63fc4John McCall /// the point at which the cleanup comes into scope. 4426f103ba42cb69d50005a977c5ea583984ab63fc4John McCall void ActivateCleanupBlock(EHScopeStack::stable_iterator Cleanup, 4436f103ba42cb69d50005a977c5ea583984ab63fc4John McCall llvm::Instruction *DominatingIP); 444cd2d2b7814e0104ed41a8da159a06a8ca77b70d8John McCall 445f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// \brief Enters a new scope for capturing cleanups, all of which 446f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// will be executed once the scope is exited. 447f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall class RunCleanupsScope { 448f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall EHScopeStack::stable_iterator CleanupStackDepth; 4498a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith size_t LifetimeExtendedCleanupStackSize; 45001234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor bool OldDidCallStackSave; 451ed383135bcffdb8849418896b742fbca7fa2b787John McCall protected: 4525656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor bool PerformCleanup; 453ed383135bcffdb8849418896b742fbca7fa2b787John McCall private: 45401234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor 4550e2c34f92f00628d48968dfea096d36381f494cbStephen Hines RunCleanupsScope(const RunCleanupsScope &) = delete; 4560e2c34f92f00628d48968dfea096d36381f494cbStephen Hines void operator=(const RunCleanupsScope &) = delete; 45701234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor 458c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher protected: 459c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher CodeGenFunction& CGF; 4604f45bc099f2665bc6e4bcbb169aa452390dbf3feWill Dietz 46101234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor public: 46201234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor /// \brief Enter a new cleanup scope. 4639cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer explicit RunCleanupsScope(CodeGenFunction &CGF) 464c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher : PerformCleanup(true), CGF(CGF) 4655656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor { 466f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall CleanupStackDepth = CGF.EHStack.stable_begin(); 4678a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith LifetimeExtendedCleanupStackSize = 4688a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith CGF.LifetimeExtendedCleanupStack.size(); 46901234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor OldDidCallStackSave = CGF.DidCallStackSave; 4704ada2ca7d82dab68d3646f3eb6dcdfee072e8ea4Argyrios Kyrtzidis CGF.DidCallStackSave = false; 47101234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor } 47201234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor 47301234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor /// \brief Exit this cleanup scope, emitting any accumulated 47401234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor /// cleanups. 475f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall ~RunCleanupsScope() { 4765656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor if (PerformCleanup) { 4775656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor CGF.DidCallStackSave = OldDidCallStackSave; 4788a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith CGF.PopCleanupBlocks(CleanupStackDepth, 4798a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith LifetimeExtendedCleanupStackSize); 4805656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor } 4815656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor } 4825656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor 4835656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor /// \brief Determine whether this scope requires any cleanups. 4845656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor bool requiresCleanups() const { 485f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return CGF.EHStack.stable_begin() != CleanupStackDepth; 4865656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor } 4875656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor 4885656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor /// \brief Force the emission of cleanups now, instead of waiting 4895656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor /// until this object is destroyed. 4905656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor void ForceCleanup() { 4915656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor assert(PerformCleanup && "Already forced cleanup"); 49201234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor CGF.DidCallStackSave = OldDidCallStackSave; 4938a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith CGF.PopCleanupBlocks(CleanupStackDepth, 4948a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith LifetimeExtendedCleanupStackSize); 4955656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor PerformCleanup = false; 49601234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor } 49701234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor }; 49801234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor 499176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines class LexicalScope : public RunCleanupsScope { 500c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher SourceRange Range; 501495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem SmallVector<const LabelDecl*, 4> Labels; 502495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem LexicalScope *ParentScope; 503c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher 5040e2c34f92f00628d48968dfea096d36381f494cbStephen Hines LexicalScope(const LexicalScope &) = delete; 5050e2c34f92f00628d48968dfea096d36381f494cbStephen Hines void operator=(const LexicalScope &) = delete; 506c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher 507c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher public: 508c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher /// \brief Enter a new cleanup scope. 509c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher explicit LexicalScope(CodeGenFunction &CGF, SourceRange Range) 510495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem : RunCleanupsScope(CGF), Range(Range), ParentScope(CGF.CurLexicalScope) { 511495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem CGF.CurLexicalScope = this; 512c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher if (CGDebugInfo *DI = CGF.getDebugInfo()) 513c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher DI->EmitLexicalBlockStart(CGF.Builder, Range.getBegin()); 514c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher } 515c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher 516495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem void addLabel(const LabelDecl *label) { 517495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem assert(PerformCleanup && "adding label to dead scope?"); 518495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem Labels.push_back(label); 519495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem } 520495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem 521c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher /// \brief Exit this cleanup scope, emitting any accumulated 522c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher /// cleanups. 523c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher ~LexicalScope() { 524efb72adbae0c253fc2fd9127fb3e1c36cb1b8d93Adrian Prantl if (CGDebugInfo *DI = CGF.getDebugInfo()) 525efb72adbae0c253fc2fd9127fb3e1c36cb1b8d93Adrian Prantl DI->EmitLexicalBlockEnd(CGF.Builder, Range.getEnd()); 526efb72adbae0c253fc2fd9127fb3e1c36cb1b8d93Adrian Prantl 527495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem // If we should perform a cleanup, force them now. Note that 528495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem // this ends the cleanup scope before rescoping any labels. 5290e2c34f92f00628d48968dfea096d36381f494cbStephen Hines if (PerformCleanup) { 5300e2c34f92f00628d48968dfea096d36381f494cbStephen Hines ApplyDebugLocation DL(CGF, Range.getEnd()); 5310e2c34f92f00628d48968dfea096d36381f494cbStephen Hines ForceCleanup(); 5320e2c34f92f00628d48968dfea096d36381f494cbStephen Hines } 533c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher } 534c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher 535c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher /// \brief Force the emission of cleanups now, instead of waiting 536c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher /// until this object is destroyed. 537c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher void ForceCleanup() { 538efb72adbae0c253fc2fd9127fb3e1c36cb1b8d93Adrian Prantl CGF.CurLexicalScope = ParentScope; 539c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher RunCleanupsScope::ForceCleanup(); 540ed383135bcffdb8849418896b742fbca7fa2b787John McCall 541495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem if (!Labels.empty()) 542495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem rescopeLabels(); 543c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher } 544495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem 545495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem void rescopeLabels(); 546c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher }; 547c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher 548176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines /// \brief The scope used to remap some variables as private in the OpenMP 549176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines /// loop body (or other captured region emitted without outlining), and to 550176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines /// restore old vars back on exit. 551176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines class OMPPrivateScope : public RunCleanupsScope { 552176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines typedef llvm::DenseMap<const VarDecl *, llvm::Value *> VarDeclMapTy; 553176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines VarDeclMapTy SavedLocals; 554176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines VarDeclMapTy SavedPrivates; 555176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines 556176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines private: 5570e2c34f92f00628d48968dfea096d36381f494cbStephen Hines OMPPrivateScope(const OMPPrivateScope &) = delete; 5580e2c34f92f00628d48968dfea096d36381f494cbStephen Hines void operator=(const OMPPrivateScope &) = delete; 559176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines 560176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines public: 561176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines /// \brief Enter a new OpenMP private scope. 562176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines explicit OMPPrivateScope(CodeGenFunction &CGF) : RunCleanupsScope(CGF) {} 563176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines 564176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines /// \brief Registers \a LocalVD variable as a private and apply \a 565176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines /// PrivateGen function for it to generate corresponding private variable. 566176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines /// \a PrivateGen returns an address of the generated private variable. 567176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines /// \return true if the variable is registered as private, false if it has 568176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines /// been privatized already. 569176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines bool 570176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines addPrivate(const VarDecl *LocalVD, 571176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines const std::function<llvm::Value *()> &PrivateGen) { 572176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines assert(PerformCleanup && "adding private to dead scope"); 573176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines if (SavedLocals.count(LocalVD) > 0) return false; 574176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines SavedLocals[LocalVD] = CGF.LocalDeclMap.lookup(LocalVD); 575176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines CGF.LocalDeclMap.erase(LocalVD); 576176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines SavedPrivates[LocalVD] = PrivateGen(); 577176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines CGF.LocalDeclMap[LocalVD] = SavedLocals[LocalVD]; 578176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines return true; 579176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines } 580176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines 581176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines /// \brief Privatizes local variables previously registered as private. 582176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines /// Registration is separate from the actual privatization to allow 583176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines /// initializers use values of the original variables, not the private one. 584176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines /// This is important, for example, if the private variable is a class 585176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines /// variable initialized by a constructor that references other private 586176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines /// variables. But at initialization original variables must be used, not 587176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines /// private copies. 588176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines /// \return true if at least one variable was privatized, false otherwise. 589176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines bool Privatize() { 590176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines for (auto VDPair : SavedPrivates) { 591176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines CGF.LocalDeclMap[VDPair.first] = VDPair.second; 592176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines } 593176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines SavedPrivates.clear(); 594176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines return !SavedLocals.empty(); 595176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines } 596176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines 597176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines void ForceCleanup() { 598176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines RunCleanupsScope::ForceCleanup(); 599176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines // Remap vars back to the original values. 600176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines for (auto I : SavedLocals) { 601176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines CGF.LocalDeclMap[I.first] = I.second; 602176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines } 603176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines SavedLocals.clear(); 604176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines } 605176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines 606176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines /// \brief Exit scope - all the mapped variables are restored. 6073ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar ~OMPPrivateScope() { 6083ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar if (PerformCleanup) 6093ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar ForceCleanup(); 6103ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar } 611176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines }; 61244ec82b4a1597802f5bf17721481b8c265bc8dc5Anders Carlsson 6138a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith /// \brief Takes the old cleanup stack size and emits the cleanup blocks 6148a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith /// that have been added. 6151c3db769249a633108dc320da87c48a432e2bcc1Adrian Prantl void PopCleanupBlocks(EHScopeStack::stable_iterator OldCleanupStackSize); 61644ec82b4a1597802f5bf17721481b8c265bc8dc5Anders Carlsson 6178a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith /// \brief Takes the old cleanup stack size and emits the cleanup blocks 6188a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith /// that have been added, then adds all lifetime-extended cleanups from 6198a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith /// the given position to the stack. 6208a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith void PopCleanupBlocks(EHScopeStack::stable_iterator OldCleanupStackSize, 6218a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith size_t OldLifetimeExtendedStackSize); 6228a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith 623ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall void ResolveBranchFixups(llvm::BasicBlock *Target); 624ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall 625f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// The given basic block lies in the current EH scope, but may be a 626f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// target of a potentially scope-crossing jump; get a stable handle 627f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// to which we can perform this jump later. 628ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall JumpDest getJumpDestInCurrentScope(llvm::BasicBlock *Target) { 629413e67778d593215d2f2161a4e712c8568f1ddd0John McCall return JumpDest(Target, 630413e67778d593215d2f2161a4e712c8568f1ddd0John McCall EHStack.getInnermostNormalCleanup(), 631413e67778d593215d2f2161a4e712c8568f1ddd0John McCall NextCleanupDestIndex++); 632f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 633c71c845fe77ee1f891d60232ec320912d88557eeAnders Carlsson 634f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// The given basic block lies in the current EH scope, but may be a 635f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// target of a potentially scope-crossing jump; get a stable handle 636f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// to which we can perform this jump later. 637686775deca8b8685eb90801495880e3abdd844c2Chris Lattner JumpDest getJumpDestInCurrentScope(StringRef Name = StringRef()) { 638ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall return getJumpDestInCurrentScope(createBasicBlock(Name)); 639f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 640f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 641f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// EmitBranchThroughCleanup - Emit a branch from the current insert 642f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// block through the normal cleanup handling code (if any) and then 643f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// on to \arg Dest. 644f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall void EmitBranchThroughCleanup(JumpDest Dest); 645b11f9198111796ada02b57f62cdea92134fde9f7Chris Lattner 646b11f9198111796ada02b57f62cdea92134fde9f7Chris Lattner /// isObviouslyBranchWithoutCleanups - Return true if a branch to the 647b11f9198111796ada02b57f62cdea92134fde9f7Chris Lattner /// specified destination obviously has no cleanups to run. 'false' is always 648b11f9198111796ada02b57f62cdea92134fde9f7Chris Lattner /// a conservatively correct answer for this method. 649b11f9198111796ada02b57f62cdea92134fde9f7Chris Lattner bool isObviouslyBranchWithoutCleanups(JumpDest Dest) const; 650f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 651777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall /// popCatchScope - Pops the catch scope at the top of the EHScope 652777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall /// stack, emitting any required code (other than the catch handlers 653777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall /// themselves). 654777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall void popCatchScope(); 655ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall 656c686004145b1f4dbeb38173a0886ba7040ae0089David Chisnall llvm::BasicBlock *getEHResumeBlock(bool isCleanup); 657777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall llvm::BasicBlock *getEHDispatchBlock(EHScopeStack::stable_iterator scope); 6580dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 659150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// An object to manage conditionally-evaluated expressions. 660150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall class ConditionalEvaluation { 661150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall llvm::BasicBlock *StartBB; 6621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 663150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall public: 664150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall ConditionalEvaluation(CodeGenFunction &CGF) 665150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall : StartBB(CGF.Builder.GetInsertBlock()) {} 6669cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 667150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall void begin(CodeGenFunction &CGF) { 668150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall assert(CGF.OutermostConditional != this); 669150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall if (!CGF.OutermostConditional) 670150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall CGF.OutermostConditional = this; 671150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 672150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 673150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall void end(CodeGenFunction &CGF) { 6746bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines assert(CGF.OutermostConditional != nullptr); 675150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall if (CGF.OutermostConditional == this) 6766bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines CGF.OutermostConditional = nullptr; 677150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 678150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 679150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// Returns a block which will be executed prior to each 680150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// evaluation of the conditional code. 681150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall llvm::BasicBlock *getStartingBlock() const { 682150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall return StartBB; 683150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 684150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall }; 6851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6863019c444c672938c57f5573840071ecd73425ee7John McCall /// isInConditionalBranch - Return true if we're currently emitting 6873019c444c672938c57f5573840071ecd73425ee7John McCall /// one branch or the other of a conditional expression. 6886bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines bool isInConditionalBranch() const { return OutermostConditional != nullptr; } 689150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 6906f103ba42cb69d50005a977c5ea583984ab63fc4John McCall void setBeforeOutermostConditional(llvm::Value *value, llvm::Value *addr) { 6916f103ba42cb69d50005a977c5ea583984ab63fc4John McCall assert(isInConditionalBranch()); 6926f103ba42cb69d50005a977c5ea583984ab63fc4John McCall llvm::BasicBlock *block = OutermostConditional->getStartingBlock(); 6936f103ba42cb69d50005a977c5ea583984ab63fc4John McCall new llvm::StoreInst(value, addr, &block->back()); 6946f103ba42cb69d50005a977c5ea583984ab63fc4John McCall } 6956f103ba42cb69d50005a977c5ea583984ab63fc4John McCall 696150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// An RAII object to record that we're evaluating a statement 697150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// expression. 698150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall class StmtExprEvaluation { 699150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall CodeGenFunction &CGF; 700150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 701150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// We have to save the outermost conditional: cleanups in a 702150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// statement expression aren't conditional just because the 703150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// StmtExpr is. 704150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall ConditionalEvaluation *SavedOutermostConditional; 705150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 706150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall public: 707150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall StmtExprEvaluation(CodeGenFunction &CGF) 708150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall : CGF(CGF), SavedOutermostConditional(CGF.OutermostConditional) { 7096bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines CGF.OutermostConditional = nullptr; 710150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 711150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 712150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall ~StmtExprEvaluation() { 713150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall CGF.OutermostConditional = SavedOutermostConditional; 714150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall CGF.EnsureInsertPoint(); 715150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 716150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall }; 717e996ffd240f20a1048179d7727a6ee3227261921John McCall 71856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// An object which temporarily prevents a value from being 71956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// destroyed by aggressive peephole optimizations that assume that 72056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// all uses of a value have been realized in the IR. 72156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall class PeepholeProtection { 72256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall llvm::Instruction *Inst; 72356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall friend class CodeGenFunction; 72456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 72556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall public: 7266bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines PeepholeProtection() : Inst(nullptr) {} 7274b9c2d235fb9449e249d74f48ecfec601650de93John McCall }; 72856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 7294b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// A non-RAII class containing all the information about a bound 7304b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// opaque value. OpaqueValueMapping, below, is a RAII wrapper for 7314b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// this which makes individual mappings very simple; using this 7324b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// class directly is useful when you have a variable number of 7334b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// opaque values or don't want the RAII functionality for some 7344b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// reason. 7354b9c2d235fb9449e249d74f48ecfec601650de93John McCall class OpaqueValueMappingData { 736e996ffd240f20a1048179d7727a6ee3227261921John McCall const OpaqueValueExpr *OpaqueValue; 73756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall bool BoundLValue; 73856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall CodeGenFunction::PeepholeProtection Protection; 739e996ffd240f20a1048179d7727a6ee3227261921John McCall 7404b9c2d235fb9449e249d74f48ecfec601650de93John McCall OpaqueValueMappingData(const OpaqueValueExpr *ov, 7414b9c2d235fb9449e249d74f48ecfec601650de93John McCall bool boundLValue) 7424b9c2d235fb9449e249d74f48ecfec601650de93John McCall : OpaqueValue(ov), BoundLValue(boundLValue) {} 743e996ffd240f20a1048179d7727a6ee3227261921John McCall public: 7446bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines OpaqueValueMappingData() : OpaqueValue(nullptr) {} 7454b9c2d235fb9449e249d74f48ecfec601650de93John McCall 74656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static bool shouldBindAsLValue(const Expr *expr) { 747a5493f885095bd63d525a7035ad1c224de3ae5f2John McCall // gl-values should be bound as l-values for obvious reasons. 748a5493f885095bd63d525a7035ad1c224de3ae5f2John McCall // Records should be bound as l-values because IR generation 749a5493f885095bd63d525a7035ad1c224de3ae5f2John McCall // always keeps them in memory. Expressions of function type 750a5493f885095bd63d525a7035ad1c224de3ae5f2John McCall // act exactly like l-values but are formally required to be 751a5493f885095bd63d525a7035ad1c224de3ae5f2John McCall // r-values in C. 752a5493f885095bd63d525a7035ad1c224de3ae5f2John McCall return expr->isGLValue() || 753651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines expr->getType()->isFunctionType() || 754651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines hasAggregateEvaluationKind(expr->getType()); 75556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 75656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 7574b9c2d235fb9449e249d74f48ecfec601650de93John McCall static OpaqueValueMappingData bind(CodeGenFunction &CGF, 7584b9c2d235fb9449e249d74f48ecfec601650de93John McCall const OpaqueValueExpr *ov, 7594b9c2d235fb9449e249d74f48ecfec601650de93John McCall const Expr *e) { 7604b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (shouldBindAsLValue(ov)) 7614b9c2d235fb9449e249d74f48ecfec601650de93John McCall return bind(CGF, ov, CGF.EmitLValue(e)); 7624b9c2d235fb9449e249d74f48ecfec601650de93John McCall return bind(CGF, ov, CGF.EmitAnyExpr(e)); 7634b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 7644b9c2d235fb9449e249d74f48ecfec601650de93John McCall 7654b9c2d235fb9449e249d74f48ecfec601650de93John McCall static OpaqueValueMappingData bind(CodeGenFunction &CGF, 7664b9c2d235fb9449e249d74f48ecfec601650de93John McCall const OpaqueValueExpr *ov, 7674b9c2d235fb9449e249d74f48ecfec601650de93John McCall const LValue &lv) { 7684b9c2d235fb9449e249d74f48ecfec601650de93John McCall assert(shouldBindAsLValue(ov)); 7694b9c2d235fb9449e249d74f48ecfec601650de93John McCall CGF.OpaqueLValues.insert(std::make_pair(ov, lv)); 7704b9c2d235fb9449e249d74f48ecfec601650de93John McCall return OpaqueValueMappingData(ov, true); 7714b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 7724b9c2d235fb9449e249d74f48ecfec601650de93John McCall 7734b9c2d235fb9449e249d74f48ecfec601650de93John McCall static OpaqueValueMappingData bind(CodeGenFunction &CGF, 7744b9c2d235fb9449e249d74f48ecfec601650de93John McCall const OpaqueValueExpr *ov, 7754b9c2d235fb9449e249d74f48ecfec601650de93John McCall const RValue &rv) { 7764b9c2d235fb9449e249d74f48ecfec601650de93John McCall assert(!shouldBindAsLValue(ov)); 7774b9c2d235fb9449e249d74f48ecfec601650de93John McCall CGF.OpaqueRValues.insert(std::make_pair(ov, rv)); 7784b9c2d235fb9449e249d74f48ecfec601650de93John McCall 7794b9c2d235fb9449e249d74f48ecfec601650de93John McCall OpaqueValueMappingData data(ov, false); 7804b9c2d235fb9449e249d74f48ecfec601650de93John McCall 7814b9c2d235fb9449e249d74f48ecfec601650de93John McCall // Work around an extremely aggressive peephole optimization in 7824b9c2d235fb9449e249d74f48ecfec601650de93John McCall // EmitScalarConversion which assumes that all other uses of a 7834b9c2d235fb9449e249d74f48ecfec601650de93John McCall // value are extant. 7844b9c2d235fb9449e249d74f48ecfec601650de93John McCall data.Protection = CGF.protectFromPeepholes(rv); 7854b9c2d235fb9449e249d74f48ecfec601650de93John McCall 7864b9c2d235fb9449e249d74f48ecfec601650de93John McCall return data; 7874b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 7884b9c2d235fb9449e249d74f48ecfec601650de93John McCall 7896bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines bool isValid() const { return OpaqueValue != nullptr; } 7906bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines void clear() { OpaqueValue = nullptr; } 7914b9c2d235fb9449e249d74f48ecfec601650de93John McCall 7924b9c2d235fb9449e249d74f48ecfec601650de93John McCall void unbind(CodeGenFunction &CGF) { 7934b9c2d235fb9449e249d74f48ecfec601650de93John McCall assert(OpaqueValue && "no data to unbind!"); 7944b9c2d235fb9449e249d74f48ecfec601650de93John McCall 7954b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (BoundLValue) { 7964b9c2d235fb9449e249d74f48ecfec601650de93John McCall CGF.OpaqueLValues.erase(OpaqueValue); 7974b9c2d235fb9449e249d74f48ecfec601650de93John McCall } else { 7984b9c2d235fb9449e249d74f48ecfec601650de93John McCall CGF.OpaqueRValues.erase(OpaqueValue); 7994b9c2d235fb9449e249d74f48ecfec601650de93John McCall CGF.unprotectFromPeepholes(Protection); 8004b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 8014b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 8024b9c2d235fb9449e249d74f48ecfec601650de93John McCall }; 8034b9c2d235fb9449e249d74f48ecfec601650de93John McCall 8044b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// An RAII object to set (and then clear) a mapping for an OpaqueValueExpr. 8054b9c2d235fb9449e249d74f48ecfec601650de93John McCall class OpaqueValueMapping { 8064b9c2d235fb9449e249d74f48ecfec601650de93John McCall CodeGenFunction &CGF; 8074b9c2d235fb9449e249d74f48ecfec601650de93John McCall OpaqueValueMappingData Data; 8084b9c2d235fb9449e249d74f48ecfec601650de93John McCall 8094b9c2d235fb9449e249d74f48ecfec601650de93John McCall public: 8104b9c2d235fb9449e249d74f48ecfec601650de93John McCall static bool shouldBindAsLValue(const Expr *expr) { 8114b9c2d235fb9449e249d74f48ecfec601650de93John McCall return OpaqueValueMappingData::shouldBindAsLValue(expr); 8124b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 8134b9c2d235fb9449e249d74f48ecfec601650de93John McCall 81456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// Build the opaque value mapping for the given conditional 81556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// operator if it's the GNU ?: extension. This is a common 81656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// enough pattern that the convenience operator is really 81756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// helpful. 81856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// 81956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall OpaqueValueMapping(CodeGenFunction &CGF, 82056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall const AbstractConditionalOperator *op) : CGF(CGF) { 8214b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (isa<ConditionalOperator>(op)) 8224b9c2d235fb9449e249d74f48ecfec601650de93John McCall // Leave Data empty. 82356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return; 82456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 82556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall const BinaryConditionalOperator *e = cast<BinaryConditionalOperator>(op); 8264b9c2d235fb9449e249d74f48ecfec601650de93John McCall Data = OpaqueValueMappingData::bind(CGF, e->getOpaqueValue(), 8274b9c2d235fb9449e249d74f48ecfec601650de93John McCall e->getCommon()); 82856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 82956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 830e996ffd240f20a1048179d7727a6ee3227261921John McCall OpaqueValueMapping(CodeGenFunction &CGF, 831e996ffd240f20a1048179d7727a6ee3227261921John McCall const OpaqueValueExpr *opaqueValue, 83256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall LValue lvalue) 8334b9c2d235fb9449e249d74f48ecfec601650de93John McCall : CGF(CGF), Data(OpaqueValueMappingData::bind(CGF, opaqueValue, lvalue)) { 83456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 83556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 83656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall OpaqueValueMapping(CodeGenFunction &CGF, 83756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall const OpaqueValueExpr *opaqueValue, 83856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall RValue rvalue) 8394b9c2d235fb9449e249d74f48ecfec601650de93John McCall : CGF(CGF), Data(OpaqueValueMappingData::bind(CGF, opaqueValue, rvalue)) { 840e996ffd240f20a1048179d7727a6ee3227261921John McCall } 841e996ffd240f20a1048179d7727a6ee3227261921John McCall 842e996ffd240f20a1048179d7727a6ee3227261921John McCall void pop() { 8434b9c2d235fb9449e249d74f48ecfec601650de93John McCall Data.unbind(CGF); 8444b9c2d235fb9449e249d74f48ecfec601650de93John McCall Data.clear(); 845e996ffd240f20a1048179d7727a6ee3227261921John McCall } 846e996ffd240f20a1048179d7727a6ee3227261921John McCall 847e996ffd240f20a1048179d7727a6ee3227261921John McCall ~OpaqueValueMapping() { 8484b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (Data.isValid()) Data.unbind(CGF); 849e996ffd240f20a1048179d7727a6ee3227261921John McCall } 850e996ffd240f20a1048179d7727a6ee3227261921John McCall }; 851e220455a059d926953befe72857b9525273717efFariborz Jahanian 852e220455a059d926953befe72857b9525273717efFariborz Jahanian /// getByrefValueFieldNumber - Given a declaration, returns the LLVM field 853e220455a059d926953befe72857b9525273717efFariborz Jahanian /// number that holds the value. 854e220455a059d926953befe72857b9525273717efFariborz Jahanian unsigned getByRefValueLLVMField(const ValueDecl *VD) const; 85552a80e19ad688091723a52ad53337767bb0ac684Fariborz Jahanian 85652a80e19ad688091723a52ad53337767bb0ac684Fariborz Jahanian /// BuildBlockByrefAddress - Computes address location of the 85752a80e19ad688091723a52ad53337767bb0ac684Fariborz Jahanian /// variable which is declared as __block. 85852a80e19ad688091723a52ad53337767bb0ac684Fariborz Jahanian llvm::Value *BuildBlockByrefAddress(llvm::Value *BaseAddr, 85952a80e19ad688091723a52ad53337767bb0ac684Fariborz Jahanian const VarDecl *V); 8607f02f721d48772e4eee4fccd8af4f800be1bbc1eChris Lattnerprivate: 861d9becd1846e2c72bf6ad283faa1b048f33dd3afeChris Lattner CGDebugInfo *DebugInfo; 862aa11289f754d220c9c155b68a4f84cdcfcefef6aDevang Patel bool DisableDebugInfo; 86309429b962811f2c0a7a81a1b0a89f96f5878b20cMike Stump 86493c332a8ba2c193c435b293966d343dab15f555bJohn McCall /// DidCallStackSave - Whether llvm.stacksave has been called. Used to avoid 86593c332a8ba2c193c435b293966d343dab15f555bJohn McCall /// calling llvm.stacksave for multiple VLAs in the same scope. 86693c332a8ba2c193c435b293966d343dab15f555bJohn McCall bool DidCallStackSave; 86793c332a8ba2c193c435b293966d343dab15f555bJohn McCall 868f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// IndirectBranch - The first time an indirect goto is seen we create a block 869f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// with an indirect branch. Every time we see the address of a label taken, 870f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// we add the label to the indirect goto. Every subsequent indirect goto is 871f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// codegen'd as a jump to the IndirectBranch's basic block. 872d9becd1846e2c72bf6ad283faa1b048f33dd3afeChris Lattner llvm::IndirectBrInst *IndirectBranch; 8730ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar 8740dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// LocalDeclMap - This keeps track of the LLVM allocas or globals for local C 8750dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// decls. 8766b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall typedef llvm::DenseMap<const Decl*, llvm::Value*> DeclMapTy; 8776b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall DeclMapTy LocalDeclMap; 8785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// LabelMap - This keeps track of the LLVM basic block for each C label. 880ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner llvm::DenseMap<const LabelDecl*, JumpDest> LabelMap; 8810dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 8820dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // BreakContinueStack - This keeps track of where break and continue 883e4b6d342c29d5cb9d311756100df1603810fa892Anders Carlsson // statements should jump to. 884da13870e99fe33934b2122f06528a5063f78ae4cChris Lattner struct BreakContinue { 885f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall BreakContinue(JumpDest Break, JumpDest Continue) 886f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall : BreakBlock(Break), ContinueBlock(Continue) {} 8870dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 888f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall JumpDest BreakBlock; 889f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall JumpDest ContinueBlock; 8900dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump }; 891686775deca8b8685eb90801495880e3abdd844c2Chris Lattner SmallVector<BreakContinue, 8> BreakContinueStack; 89218ccc7776ad6288c5f630dc7967fb99d099c9cd9Daniel Dunbar 893651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines CodeGenPGO PGO; 894651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 895651f13cea278ec967336033dd032faef0e9fc2ecStephen Hinespublic: 896651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines /// Get a counter for instrumentation of the region associated with the given 897651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines /// statement. 898651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines RegionCounter getPGORegionCounter(const Stmt *S) { 899651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return RegionCounter(PGO, S); 900651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } 901651f13cea278ec967336033dd032faef0e9fc2ecStephen Hinesprivate: 902651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 903170fd49294b85ab10f820721d99ff9d109c7230dZhongxing Xu /// SwitchInsn - This is nearest current switch instruction. It is null if 9040dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// current context is not in a switch. 90551b09f2c528c8460b5465c676173324e44176d62Devang Patel llvm::SwitchInst *SwitchInsn; 906651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines /// The branch weights of SwitchInsn when doing instrumentation based PGO. 907651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines SmallVector<uint64_t, 16> *SwitchWeights; 90851b09f2c528c8460b5465c676173324e44176d62Devang Patel 9090dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// CaseRangeBlock - This block holds if condition check for last case 91080fd5f96e6805ac43aab99faabd5b4c8b19551b7Devang Patel /// statement range in current switch instruction. 911c049e4f406a7f7179eba98659044a32508e53289Devang Patel llvm::BasicBlock *CaseRangeBlock; 912c049e4f406a7f7179eba98659044a32508e53289Devang Patel 91356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// OpaqueLValues - Keeps track of the current set of opaque value 914e996ffd240f20a1048179d7727a6ee3227261921John McCall /// expressions. 91556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall llvm::DenseMap<const OpaqueValueExpr *, LValue> OpaqueLValues; 91656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall llvm::DenseMap<const OpaqueValueExpr *, RValue> OpaqueRValues; 917e996ffd240f20a1048179d7727a6ee3227261921John McCall 9180dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // VLASizeMap - This keeps track of the associated size for each VLA type. 919bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman // We track this by the size expression rather than the type itself because 920bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman // in certain situations, like a const qualifier applied to an VLA typedef, 921bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman // multiple VLA types can share the same size expression. 9220dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // FIXME: Maybe this could be a stack of maps that is pushed/popped as we 9230dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // enter/leave scopes. 924bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman llvm::DenseMap<const Expr*, llvm::Value*> VLASizeMap; 9250dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 926f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// A block containing a single 'unreachable' instruction. Created 927f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// lazily by getUnreachableBlock(). 928f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *UnreachableBlock; 9290dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 930d072e59eb6b5e32f93be25f08f212b0ec21d6c5dAdrian Prantl /// Counts of the number return expressions in the function. 931d072e59eb6b5e32f93be25f08f212b0ec21d6c5dAdrian Prantl unsigned NumReturnExprs; 932fa6b079b1231366696f6a497c6a084c73a35c85dAdrian Prantl 933fa6b079b1231366696f6a497c6a084c73a35c85dAdrian Prantl /// Count the number of simple (constant) return expressions in the function. 934fa6b079b1231366696f6a497c6a084c73a35c85dAdrian Prantl unsigned NumSimpleReturnExprs; 935fa6b079b1231366696f6a497c6a084c73a35c85dAdrian Prantl 936d072e59eb6b5e32f93be25f08f212b0ec21d6c5dAdrian Prantl /// The last regular (non-return) debug location (breakpoint) in the function. 937d072e59eb6b5e32f93be25f08f212b0ec21d6c5dAdrian Prantl SourceLocation LastStopPoint; 938fa6b079b1231366696f6a497c6a084c73a35c85dAdrian Prantl 939c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smithpublic: 940c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith /// A scope within which we are constructing the fields of an object which 941c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith /// might use a CXXDefaultInitExpr. This stashes away a 'this' value to use 942c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith /// if we need to evaluate a CXXDefaultInitExpr within the evaluation. 943c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith class FieldConstructionScope { 944c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith public: 945c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith FieldConstructionScope(CodeGenFunction &CGF, llvm::Value *This) 946c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith : CGF(CGF), OldCXXDefaultInitExprThis(CGF.CXXDefaultInitExprThis) { 947c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith CGF.CXXDefaultInitExprThis = This; 948c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith } 949c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith ~FieldConstructionScope() { 950c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith CGF.CXXDefaultInitExprThis = OldCXXDefaultInitExprThis; 951c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith } 952c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith 953c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith private: 954c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith CodeGenFunction &CGF; 955c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith llvm::Value *OldCXXDefaultInitExprThis; 956c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith }; 957c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith 958c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith /// The scope of a CXXDefaultInitExpr. Within this scope, the value of 'this' 959c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith /// is overridden to be the object under construction. 960c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith class CXXDefaultInitExprScope { 961c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith public: 962c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith CXXDefaultInitExprScope(CodeGenFunction &CGF) 963c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith : CGF(CGF), OldCXXThisValue(CGF.CXXThisValue) { 964c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith CGF.CXXThisValue = CGF.CXXDefaultInitExprThis; 965c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith } 966c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith ~CXXDefaultInitExprScope() { 967c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith CGF.CXXThisValue = OldCXXThisValue; 968c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith } 969c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith 970c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith public: 971c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith CodeGenFunction &CGF; 972c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith llvm::Value *OldCXXThisValue; 973c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith }; 974c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith 975c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smithprivate: 976f6c56e2323c3f973253805a2f35629f3253ebed4Anders Carlsson /// CXXThisDecl - When generating code for a C++ member function, 977f6c56e2323c3f973253805a2f35629f3253ebed4Anders Carlsson /// this will hold the implicit 'this' declaration. 978cec5ebd4a6a89a7023d04cec728fd340b541ed61Eli Friedman ImplicitParamDecl *CXXABIThisDecl; 979cec5ebd4a6a89a7023d04cec728fd340b541ed61Eli Friedman llvm::Value *CXXABIThisValue; 9802504941793b549323f9d29c62507cf21d865fadeJohn McCall llvm::Value *CXXThisValue; 9811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 982c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith /// The value of 'this' to use when evaluating CXXDefaultInitExprs within 983c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith /// this expression. 984c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith llvm::Value *CXXDefaultInitExprThis; 985c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith 98659660c21178b6af518bd4b564e032d5c9cc218cbTimur Iskhodzhanov /// CXXStructorImplicitParamDecl - When generating code for a constructor or 98759660c21178b6af518bd4b564e032d5c9cc218cbTimur Iskhodzhanov /// destructor, this will hold the implicit argument (e.g. VTT). 98859660c21178b6af518bd4b564e032d5c9cc218cbTimur Iskhodzhanov ImplicitParamDecl *CXXStructorImplicitParamDecl; 98959660c21178b6af518bd4b564e032d5c9cc218cbTimur Iskhodzhanov llvm::Value *CXXStructorImplicitParamValue; 9909cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 991150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// OutermostConditional - Points to the outermost active 992150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// conditional control. This is used so that we know if a 993150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// temporary should be destroyed conditionally. 994150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall ConditionalEvaluation *OutermostConditional; 9951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 996495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem /// The current lexical scope. 997495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem LexicalScope *CurLexicalScope; 9987dfa4079f4b37507048b19bfc693d3b015d9dd11Anders Carlsson 9991c3db769249a633108dc320da87c48a432e2bcc1Adrian Prantl /// The current source location that should be used for exception 10001c3db769249a633108dc320da87c48a432e2bcc1Adrian Prantl /// handling code. 10011c3db769249a633108dc320da87c48a432e2bcc1Adrian Prantl SourceLocation CurEHLocation; 10021c3db769249a633108dc320da87c48a432e2bcc1Adrian Prantl 10037dfa4079f4b37507048b19bfc693d3b015d9dd11Anders Carlsson /// ByrefValueInfoMap - For each __block variable, contains a pair of the LLVM 10047dfa4079f4b37507048b19bfc693d3b015d9dd11Anders Carlsson /// type as well as the field number that contains the actual data. 10052acc6e3feda5e4f7d9009bdcf8b1cd777fecfe2dChris Lattner llvm::DenseMap<const ValueDecl *, std::pair<llvm::Type *, 10067dfa4079f4b37507048b19bfc693d3b015d9dd11Anders Carlsson unsigned> > ByRefValueInfo; 10079cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 1008f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *TerminateLandingPad; 1009182f383db1782af752ecaf607fdff72a8542088bMike Stump llvm::BasicBlock *TerminateHandler; 101083252dcfe61aaebcb6bc117e71dc12968729513fChris Lattner llvm::BasicBlock *TrapBB; 1011940670512d7c3d93389bb38a426abcb7ef44271eEli Friedman 10120df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner /// Add a kernel metadata node to the named metadata node 'opencl.kernels'. 10130df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner /// In the kernel metadata node, reference the kernel function and metadata 10140df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner /// nodes for its optional attribute qualifiers (OpenCL 1.1 6.7.2): 101537453b9580e293eef3bd60bd36047a93ac4515b1Joey Gouly /// - A node for the vec_type_hint(<type>) qualifier contains string 101637453b9580e293eef3bd60bd36047a93ac4515b1Joey Gouly /// "vec_type_hint", an undefined value of the <type> data type, 101737453b9580e293eef3bd60bd36047a93ac4515b1Joey Gouly /// and a Boolean that is true if the <type> is integer and signed. 10180df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner /// - A node for the work_group_size_hint(X,Y,Z) qualifier contains string 10190df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner /// "work_group_size_hint", and three 32-bit integers X, Y and Z. 10200df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner /// - A node for the reqd_work_group_size(X,Y,Z) qualifier contains string 10210df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner /// "reqd_work_group_size", and three 32-bit integers X, Y and Z. 10220df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner void EmitOpenCLKernelMetadata(const FunctionDecl *FD, 10230df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner llvm::Function *Fn); 10240df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner 10255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 10264904bf4e84cfb48080270ebaa9005327f18ab0e5Fariborz Jahanian CodeGenFunction(CodeGenModule &cgm, bool suppressNewContext=false); 10271a343ebbf413e8eae6b2737b2b2d79cbf5765571John McCall ~CodeGenFunction(); 10280dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 10291e7fe751466ea82665fd21e9162fd7cc9c5f412dJohn McCall CodeGenTypes &getTypes() const { return CGM.getTypes(); } 1030f2aac84709c418189e476ad591848dad50291885John McCall ASTContext &getContext() const { return CGM.getContext(); } 1031aa11289f754d220c9c155b68a4f84cdcfcefef6aDevang Patel CGDebugInfo *getDebugInfo() { 1032aa11289f754d220c9c155b68a4f84cdcfcefef6aDevang Patel if (DisableDebugInfo) 10336bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines return nullptr; 1034aa11289f754d220c9c155b68a4f84cdcfcefef6aDevang Patel return DebugInfo; 1035aa11289f754d220c9c155b68a4f84cdcfcefef6aDevang Patel } 1036aa11289f754d220c9c155b68a4f84cdcfcefef6aDevang Patel void disableDebugInfo() { DisableDebugInfo = true; } 1037aa11289f754d220c9c155b68a4f84cdcfcefef6aDevang Patel void enableDebugInfo() { DisableDebugInfo = false; } 1038aa11289f754d220c9c155b68a4f84cdcfcefef6aDevang Patel 1039f85e193739c953358c865005855253af4f68a497John McCall bool shouldUseFusedARCCalls() { 1040f85e193739c953358c865005855253af4f68a497John McCall return CGM.getCodeGenOpts().OptimizationLevel == 0; 1041f85e193739c953358c865005855253af4f68a497John McCall } 10425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10434e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie const LangOptions &getLangOpts() const { return CGM.getLangOpts(); } 1044d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall 1045285cfd8953d4ca4da613a47a0d691f7234068f8cBill Wendling /// Returns a pointer to the function's exception object and selector slot, 1046285cfd8953d4ca4da613a47a0d691f7234068f8cBill Wendling /// which is assigned in every landing pad. 1047f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::Value *getExceptionSlot(); 104893c332a8ba2c193c435b293966d343dab15f555bJohn McCall llvm::Value *getEHSelectorSlot(); 1049f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 10500e2c34f92f00628d48968dfea096d36381f494cbStephen Hines /// Stack slot that contains whether a __finally block is being executed as an 10510e2c34f92f00628d48968dfea096d36381f494cbStephen Hines /// EH cleanup or as a normal cleanup. 10520e2c34f92f00628d48968dfea096d36381f494cbStephen Hines llvm::Value *getAbnormalTerminationSlot(); 10530e2c34f92f00628d48968dfea096d36381f494cbStephen Hines 1054ae270598d5c7a9a283d4b3ddce53b151c6e2b182Bill Wendling /// Returns the contents of the function's exception object and selector 1055ae270598d5c7a9a283d4b3ddce53b151c6e2b182Bill Wendling /// slots. 1056ae270598d5c7a9a283d4b3ddce53b151c6e2b182Bill Wendling llvm::Value *getExceptionFromSlot(); 1057ae270598d5c7a9a283d4b3ddce53b151c6e2b182Bill Wendling llvm::Value *getSelectorFromSlot(); 1058ae270598d5c7a9a283d4b3ddce53b151c6e2b182Bill Wendling 1059ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall llvm::Value *getNormalCleanupDestSlot(); 1060ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall 1061f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *getUnreachableBlock() { 1062f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall if (!UnreachableBlock) { 1063f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall UnreachableBlock = createBasicBlock("unreachable"); 1064f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall new llvm::UnreachableInst(getLLVMContext(), UnreachableBlock); 1065f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 1066f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return UnreachableBlock; 1067f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 1068f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 1069f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *getInvokeDest() { 10706bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines if (!EHStack.requiresLandingPad()) return nullptr; 1071f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return getInvokeDestImpl(); 1072f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 10739834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar 10740e2c34f92f00628d48968dfea096d36381f494cbStephen Hines bool currentFunctionUsesSEHTry() const { 10750e2c34f92f00628d48968dfea096d36381f494cbStephen Hines const auto *FD = dyn_cast_or_null<FunctionDecl>(CurCodeDecl); 10760e2c34f92f00628d48968dfea096d36381f494cbStephen Hines return FD && FD->usesSEHTry(); 10770e2c34f92f00628d48968dfea096d36381f494cbStephen Hines } 10780e2c34f92f00628d48968dfea096d36381f494cbStephen Hines 107964aa4b3ec7e62288e2e66c1935487ece995ca94bJohn McCall const TargetInfo &getTarget() const { return Target; } 1080d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall llvm::LLVMContext &getLLVMContext() { return CGM.getLLVMContext(); } 108169243825cb5c91ec7207256aa57ae327cfaf8cb2Owen Anderson 10829834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar //===--------------------------------------------------------------------===// 1083bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall // Cleanups 1084bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall //===--------------------------------------------------------------------===// 1085bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall 1086bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall typedef void Destroyer(CodeGenFunction &CGF, llvm::Value *addr, QualType ty); 1087bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall 10882673c68aa58e277ebc755b71d81aca618cdedbf9John McCall void pushIrregularPartialArrayCleanup(llvm::Value *arrayBegin, 10892673c68aa58e277ebc755b71d81aca618cdedbf9John McCall llvm::Value *arrayEndPointer, 10902673c68aa58e277ebc755b71d81aca618cdedbf9John McCall QualType elementType, 1091516bbd42e62d709013824d6fb8445a0cfda3129aPeter Collingbourne Destroyer *destroyer); 10922673c68aa58e277ebc755b71d81aca618cdedbf9John McCall void pushRegularPartialArrayCleanup(llvm::Value *arrayBegin, 10932673c68aa58e277ebc755b71d81aca618cdedbf9John McCall llvm::Value *arrayEnd, 10942673c68aa58e277ebc755b71d81aca618cdedbf9John McCall QualType elementType, 1095516bbd42e62d709013824d6fb8445a0cfda3129aPeter Collingbourne Destroyer *destroyer); 1096bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall 10979928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall void pushDestroy(QualType::DestructionKind dtorKind, 10989928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall llvm::Value *addr, QualType type); 1099074cae0861a87bf96d8ea56d02e34839d9ccbd0aJohn McCall void pushEHDestroy(QualType::DestructionKind dtorKind, 1100074cae0861a87bf96d8ea56d02e34839d9ccbd0aJohn McCall llvm::Value *addr, QualType type); 1101bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall void pushDestroy(CleanupKind kind, llvm::Value *addr, QualType type, 1102516bbd42e62d709013824d6fb8445a0cfda3129aPeter Collingbourne Destroyer *destroyer, bool useEHCleanupForArray); 11038a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith void pushLifetimeExtendedDestroy(CleanupKind kind, llvm::Value *addr, 11048a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith QualType type, Destroyer *destroyer, 11058a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith bool useEHCleanupForArray); 1106176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines void pushCallObjectDeleteCleanup(const FunctionDecl *OperatorDelete, 1107176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines llvm::Value *CompletePtr, 1108176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines QualType ElementType); 1109651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines void pushStackRestore(CleanupKind kind, llvm::Value *SPMem); 1110516bbd42e62d709013824d6fb8445a0cfda3129aPeter Collingbourne void emitDestroy(llvm::Value *addr, QualType type, Destroyer *destroyer, 11112673c68aa58e277ebc755b71d81aca618cdedbf9John McCall bool useEHCleanupForArray); 1112c7971a9efdf9880448a69aabb5182c3c27eecf6dDavid Blaikie llvm::Function *generateDestroyHelper(llvm::Constant *addr, QualType type, 1113516bbd42e62d709013824d6fb8445a0cfda3129aPeter Collingbourne Destroyer *destroyer, 1114c7971a9efdf9880448a69aabb5182c3c27eecf6dDavid Blaikie bool useEHCleanupForArray, 1115c7971a9efdf9880448a69aabb5182c3c27eecf6dDavid Blaikie const VarDecl *VD); 1116bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall void emitArrayDestroy(llvm::Value *begin, llvm::Value *end, 1117516bbd42e62d709013824d6fb8445a0cfda3129aPeter Collingbourne QualType type, Destroyer *destroyer, 1118fbf780a9d1dbb191fc40c8af967c590e08724b74John McCall bool checkZeroLength, bool useEHCleanup); 1119bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall 1120516bbd42e62d709013824d6fb8445a0cfda3129aPeter Collingbourne Destroyer *getDestroyer(QualType::DestructionKind destructionKind); 11219928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall 1122bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall /// Determines whether an EH cleanup is required to destroy a type 1123bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall /// with the given destruction kind. 1124bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall bool needsEHCleanup(QualType::DestructionKind kind) { 1125bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall switch (kind) { 1126bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall case QualType::DK_none: 1127bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall return false; 1128bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall case QualType::DK_cxx_destructor: 1129bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall case QualType::DK_objc_weak_lifetime: 11304e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie return getLangOpts().Exceptions; 1131bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall case QualType::DK_objc_strong_lifetime: 11324e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie return getLangOpts().Exceptions && 1133bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall CGM.getCodeGenOpts().ObjCAutoRefCountExceptions; 1134bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall } 1135bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall llvm_unreachable("bad destruction kind"); 1136bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall } 1137bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall 11389928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall CleanupKind getCleanupKind(QualType::DestructionKind kind) { 11399928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall return (needsEHCleanup(kind) ? NormalAndEHCleanup : NormalCleanup); 11409928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall } 11419928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall 1142bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall //===--------------------------------------------------------------------===// 11439834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar // Objective-C 11449834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar //===--------------------------------------------------------------------===// 11459834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar 1146391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner void GenerateObjCMethod(const ObjCMethodDecl *OMD); 1147af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 11480e2c34f92f00628d48968dfea096d36381f494cbStephen Hines void StartObjCMethod(const ObjCMethodDecl *MD, const ObjCContainerDecl *CD); 1149af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 11500dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// GenerateObjCGetter - Synthesize an Objective-C property getter function. 1151fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian void GenerateObjCGetter(ObjCImplementationDecl *IMP, 1152fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian const ObjCPropertyImplDecl *PID); 11531e1f4871535f2cadcbf8c9af8cc48a2213192320John McCall void generateObjCGetterBody(const ObjCImplementationDecl *classImpl, 1154b6e5fe3cae9bf456f084c555c3ecc256f4181cc5Fariborz Jahanian const ObjCPropertyImplDecl *propImpl, 1155490a52b4947381879a47b4251db5fb81cdf5d02bFariborz Jahanian const ObjCMethodDecl *GetterMothodDecl, 1156b6e5fe3cae9bf456f084c555c3ecc256f4181cc5Fariborz Jahanian llvm::Constant *AtomicHelperFn); 11572846b97965e980ad2e7c8d444b82cc21d733a699Fariborz Jahanian 1158109dfc6ca6652f60c55ed0f2631aebf323d0200dFariborz Jahanian void GenerateObjCCtorDtorMethod(ObjCImplementationDecl *IMP, 1159109dfc6ca6652f60c55ed0f2631aebf323d0200dFariborz Jahanian ObjCMethodDecl *MD, bool ctor); 1160af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 11610dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// GenerateObjCSetter - Synthesize an Objective-C property setter function 11620dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// for the given property. 1163fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian void GenerateObjCSetter(ObjCImplementationDecl *IMP, 1164fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian const ObjCPropertyImplDecl *PID); 116571c758d3f4ecc8b511e6ae4a7210486aa994c182John McCall void generateObjCSetterBody(const ObjCImplementationDecl *classImpl, 1166cd93b96bc51c255d104095bc6a6d8eac74a84b1eFariborz Jahanian const ObjCPropertyImplDecl *propImpl, 1167cd93b96bc51c255d104095bc6a6d8eac74a84b1eFariborz Jahanian llvm::Constant *AtomicHelperFn); 11680b2bd47151ee9205ad6c66d1ffb921918106088aFariborz Jahanian bool IndirectObjCSetterArg(const CGFunctionInfo &FI); 116915bd58842adaa4f8cca4e58047ed18e033858d9bFariborz Jahanian bool IvarTypeWithAggrGCObjects(QualType Ty); 1170af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 11714e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump //===--------------------------------------------------------------------===// 11724e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump // Block Bits 11734e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump //===--------------------------------------------------------------------===// 11744e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump 11756b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall llvm::Value *EmitBlockLiteral(const BlockExpr *); 11761a343ebbf413e8eae6b2737b2b2d79cbf5765571John McCall llvm::Value *EmitBlockLiteral(const CGBlockInfo &Info); 11771a343ebbf413e8eae6b2737b2b2d79cbf5765571John McCall static void destroyBlockInfos(CGBlockInfo *info); 11782a7eb28397148079cbc8e54e8a3871ef01c4f4bcBlaine Garst llvm::Constant *BuildDescriptorBlockDecl(const BlockExpr *, 117989ecd41e0a6bfb3b0913dbe41c3c666340b308c7Fariborz Jahanian const CGBlockInfo &Info, 11802acc6e3feda5e4f7d9009bdcf8b1cd777fecfe2dChris Lattner llvm::StructType *, 1181d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall llvm::Constant *BlockVarLayout); 11824e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump 1183564360be450b319aeafc26698be9811837bfb826Fariborz Jahanian llvm::Function *GenerateBlockFunction(GlobalDecl GD, 11846b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall const CGBlockInfo &Info, 118564bee65a3436e3f0c352fcfe2130676f3502cffeEli Friedman const DeclMapTy &ldm, 118664bee65a3436e3f0c352fcfe2130676f3502cffeEli Friedman bool IsLambdaConversionToBlock); 11874e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump 1188d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall llvm::Constant *GenerateCopyHelperFunction(const CGBlockInfo &blockInfo); 1189d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall llvm::Constant *GenerateDestroyHelperFunction(const CGBlockInfo &blockInfo); 119020abee6b95c4f5a61e471b4b616439280ca4a81bFariborz Jahanian llvm::Constant *GenerateObjCAtomicSetterCopyHelperFunction( 119120abee6b95c4f5a61e471b4b616439280ca4a81bFariborz Jahanian const ObjCPropertyImplDecl *PID); 119220abee6b95c4f5a61e471b4b616439280ca4a81bFariborz Jahanian llvm::Constant *GenerateObjCAtomicGetterCopyHelperFunction( 119320abee6b95c4f5a61e471b4b616439280ca4a81bFariborz Jahanian const ObjCPropertyImplDecl *PID); 1194cae40c4d448529fe65de3d87bdbe97d3b54b4d98Eli Friedman llvm::Value *EmitBlockCopyAndAutorelease(llvm::Value *Block, QualType Ty); 1195d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall 1196d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall void BuildBlockRelease(llvm::Value *DeclPtr, BlockFieldFlags flags); 1197d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall 11985af02db5a48476e0748f135369663080eae87c64John McCall class AutoVarEmission; 11995af02db5a48476e0748f135369663080eae87c64John McCall 12005af02db5a48476e0748f135369663080eae87c64John McCall void emitByrefStructureInit(const AutoVarEmission &emission); 12015af02db5a48476e0748f135369663080eae87c64John McCall void enterByrefCleanup(const AutoVarEmission &emission); 12025af02db5a48476e0748f135369663080eae87c64John McCall 12036b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall llvm::Value *LoadBlockStruct() { 12046b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall assert(BlockPointer && "no block pointer set!"); 12056b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall return BlockPointer; 12066b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall } 12074e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump 1208ea1471e0e967548c596a71469702f8846dbaf3c0John McCall void AllocateBlockCXXThisPointer(const CXXThisExpr *E); 1209f4b88a45902af1802a1cb42ba48b1c474474f228John McCall void AllocateBlockDecl(const DeclRefExpr *E); 12106b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall llvm::Value *GetAddrOfBlockDecl(const VarDecl *var, bool ByRef); 12112acc6e3feda5e4f7d9009bdcf8b1cd777fecfe2dChris Lattner llvm::Type *BuildByRefType(const VarDecl *var); 1212dab514fc30242c7afd6c03956e46136c400fb0d3Mike Stump 1213d26bc76c98006609002d9930f8840490e88ac5b5John McCall void GenerateCode(GlobalDecl GD, llvm::Function *Fn, 1214d26bc76c98006609002d9930f8840490e88ac5b5John McCall const CGFunctionInfo &FnInfo); 12156bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines /// \brief Emit code for the start of a function. 12166bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines /// \param Loc The location to be associated with the function. 12176bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines /// \param StartLoc The location of the function body. 1218f5ebf9bf1df10ac15ba32a4b24dfe171b7848c58John McCall void StartFunction(GlobalDecl GD, 1219f5ebf9bf1df10ac15ba32a4b24dfe171b7848c58John McCall QualType RetTy, 12207c086516f3cc9fba2733b1919973206c6ba4b171Daniel Dunbar llvm::Function *Fn, 1221d26bc76c98006609002d9930f8840490e88ac5b5John McCall const CGFunctionInfo &FnInfo, 12222284ac9ec80299fcdefae9a2787cf85105a0f203Daniel Dunbar const FunctionArgList &Args, 12236bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines SourceLocation Loc = SourceLocation(), 12246bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines SourceLocation StartLoc = SourceLocation()); 1225a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 12269fc6a7774643a810c8501dae2323e863fefb623eJohn McCall void EmitConstructorBody(FunctionArgList &Args); 12279fc6a7774643a810c8501dae2323e863fefb623eJohn McCall void EmitDestructorBody(FunctionArgList &Args); 122856c00c4868831c9a137ca7b0e16d063cf986d110Lang Hames void emitImplicitAssignmentOperatorBody(FunctionArgList &Args); 12293cebc73895daccea85984d8881b5b45c8f8df9c6Richard Smith void EmitFunctionBody(FunctionArgList &Args, const Stmt *Body); 1230651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines void EmitBlockWithFallThrough(llvm::BasicBlock *BB, RegionCounter &Cnt); 1231a355e07454463b19829ac92ffd115a097faff0e0John McCall 1232d6992ab33b7113e1bd7af51c0c52d17c23706c01Faisal Vali void EmitForwardingCallToLambda(const CXXMethodDecl *LambdaCallOperator, 123364bee65a3436e3f0c352fcfe2130676f3502cffeEli Friedman CallArgList &CallArgs); 1234bd89f8c2caa9550e41daa1aa9bf30f0f1e0dfaf7Eli Friedman void EmitLambdaToBlockPointerBody(FunctionArgList &Args); 123564bee65a3436e3f0c352fcfe2130676f3502cffeEli Friedman void EmitLambdaBlockInvokeBody(); 123627dd7d962bbf774988bc5e59d04a7743ed503514Douglas Gregor void EmitLambdaDelegatingInvokeBody(const CXXMethodDecl *MD); 123727dd7d962bbf774988bc5e59d04a7743ed503514Douglas Gregor void EmitLambdaStaticInvokeFunction(const CXXMethodDecl *MD); 1238176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines void EmitAsanPrologueOrEpilogue(bool Prologue); 1239bd89f8c2caa9550e41daa1aa9bf30f0f1e0dfaf7Eli Friedman 12400e2c34f92f00628d48968dfea096d36381f494cbStephen Hines /// \brief Emit the unified return block, trying to avoid its emission when 12410e2c34f92f00628d48968dfea096d36381f494cbStephen Hines /// possible. 12420e2c34f92f00628d48968dfea096d36381f494cbStephen Hines /// \return The debug location of the user written return statement if the 12430e2c34f92f00628d48968dfea096d36381f494cbStephen Hines /// return block is is avoided. 12440e2c34f92f00628d48968dfea096d36381f494cbStephen Hines llvm::DebugLoc EmitReturnBlock(); 12451c1d6074f5a0296dd273362655b1b8f9057289e3Daniel Dunbar 12460dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// FinishFunction - Complete IR generation of the current function. It is 12470dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// legal to call this function even if there is no current insertion point. 1248af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar void FinishFunction(SourceLocation EndLoc=SourceLocation()); 124917b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar 12500e2c34f92f00628d48968dfea096d36381f494cbStephen Hines void StartThunk(llvm::Function *Fn, GlobalDecl GD, 12510e2c34f92f00628d48968dfea096d36381f494cbStephen Hines const CGFunctionInfo &FnInfo); 125293b717ac956f5c82f7895ed8874cbd514c6d0a4eHans Wennborg 1253176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines void EmitCallAndReturnForThunk(llvm::Value *Callee, const ThunkInfo *Thunk); 1254176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines 1255176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines /// Emit a musttail call for a thunk with a potentially adjusted this pointer. 1256176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines void EmitMustTailThunk(const CXXMethodDecl *MD, llvm::Value *AdjustedThisPtr, 1257176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines llvm::Value *Callee); 125893b717ac956f5c82f7895ed8874cbd514c6d0a4eHans Wennborg 1259519c32880b99396034ecaedc0cd86db2e8485003Anders Carlsson /// GenerateThunk - Generate a thunk for the given method. 1260d26bc76c98006609002d9930f8840490e88ac5b5John McCall void GenerateThunk(llvm::Function *Fn, const CGFunctionInfo &FnInfo, 1261d26bc76c98006609002d9930f8840490e88ac5b5John McCall GlobalDecl GD, const ThunkInfo &Thunk); 12629cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 12637dcdf5ba9324a9577461eae302e88fdd52e310c5Eli Friedman void GenerateVarArgsThunk(llvm::Function *Fn, const CGFunctionInfo &FnInfo, 12647dcdf5ba9324a9577461eae302e88fdd52e310c5Eli Friedman GlobalDecl GD, const ThunkInfo &Thunk); 12657dcdf5ba9324a9577461eae302e88fdd52e310c5Eli Friedman 1266fb8cc253420e93cee33d29df5a2bdae6aaf16e39Douglas Gregor void EmitCtorPrologue(const CXXConstructorDecl *CD, CXXCtorType Type, 1267fb8cc253420e93cee33d29df5a2bdae6aaf16e39Douglas Gregor FunctionArgList &Args); 12681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1269b74ed087469db042325bad76fdf3ff6ed67dec09Eli Friedman void EmitInitializerForField(FieldDecl *Field, LValue LHS, Expr *Init, 1270b74ed087469db042325bad76fdf3ff6ed67dec09Eli Friedman ArrayRef<VarDecl *> ArrayIndexes); 1271b74ed087469db042325bad76fdf3ff6ed67dec09Eli Friedman 1272d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson /// InitializeVTablePointer - Initialize the vtable pointer of the given 1273d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson /// subobject. 1274d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson /// 12759cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer void InitializeVTablePointer(BaseSubobject Base, 1276b3b772ea15a4cd54879e244629aa685ead9548bbAnders Carlsson const CXXRecordDecl *NearestVBase, 1277d6fb21fa1053e5d616af55b181bb03c50d4b0d24Ken Dyck CharUnits OffsetFromNearestVBase, 1278d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson const CXXRecordDecl *VTableClass); 1279d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson 1280d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson typedef llvm::SmallPtrSet<const CXXRecordDecl *, 4> VisitedVirtualBasesSetTy; 12819cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer void InitializeVTablePointers(BaseSubobject Base, 1282b3b772ea15a4cd54879e244629aa685ead9548bbAnders Carlsson const CXXRecordDecl *NearestVBase, 1283d6fb21fa1053e5d616af55b181bb03c50d4b0d24Ken Dyck CharUnits OffsetFromNearestVBase, 1284603d6d12cc4cba1ef219a3d55c698c7c87f87adfAnders Carlsson bool BaseIsNonVirtualPrimaryBase, 1285603d6d12cc4cba1ef219a3d55c698c7c87f87adfAnders Carlsson const CXXRecordDecl *VTableClass, 1286603d6d12cc4cba1ef219a3d55c698c7c87f87adfAnders Carlsson VisitedVirtualBasesSetTy& VBases); 128777a259c6dbf582949af8a243b472c0c7faa373a6Eli Friedman 1288603d6d12cc4cba1ef219a3d55c698c7c87f87adfAnders Carlsson void InitializeVTablePointers(const CXXRecordDecl *ClassDecl); 1289d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson 1290043fb9a1fc0609285f60f0f87e5a18195408f34cDan Gohman /// GetVTablePtr - Return the Value of the vtable pointer member pointed 1291043fb9a1fc0609285f60f0f87e5a18195408f34cDan Gohman /// to by This. 12922acc6e3feda5e4f7d9009bdcf8b1cd777fecfe2dChris Lattner llvm::Value *GetVTablePtr(llvm::Value *This, llvm::Type *Ty); 1293d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson 12943ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar /// \brief Derived is the presumed address of an object of type T after a 12953ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar /// cast. If T is a polymorphic class type, emit a check that the virtual 12963ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar /// table for Derived belongs to a class derived from T. 12973ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar void EmitVTablePtrCheckForCast(QualType T, llvm::Value *Derived, 12983ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar bool MayBeNull); 12993ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar 13000e2c34f92f00628d48968dfea096d36381f494cbStephen Hines /// EmitVTablePtrCheckForCall - Virtual method MD is being called via VTable. 13010e2c34f92f00628d48968dfea096d36381f494cbStephen Hines /// If vptr CFI is enabled, emit a check that VTable is valid. 13020e2c34f92f00628d48968dfea096d36381f494cbStephen Hines void EmitVTablePtrCheckForCall(const CXXMethodDecl *MD, llvm::Value *VTable); 13039581ed07dee5376002620a0cfb363c6b9e5bdd3eBenjamin Kramer 13043ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar /// EmitVTablePtrCheck - Emit a check that VTable is a valid virtual table for 13053ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar /// RD using llvm.bitset.test. 13063ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar void EmitVTablePtrCheck(const CXXRecordDecl *RD, llvm::Value *VTable); 13073ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar 13089581ed07dee5376002620a0cfb363c6b9e5bdd3eBenjamin Kramer /// CanDevirtualizeMemberFunctionCalls - Checks whether virtual calls on given 13099581ed07dee5376002620a0cfb363c6b9e5bdd3eBenjamin Kramer /// expr can be devirtualized. 13109581ed07dee5376002620a0cfb363c6b9e5bdd3eBenjamin Kramer bool CanDevirtualizeMemberFunctionCall(const Expr *Base, 13119581ed07dee5376002620a0cfb363c6b9e5bdd3eBenjamin Kramer const CXXMethodDecl *MD); 13129581ed07dee5376002620a0cfb363c6b9e5bdd3eBenjamin Kramer 131350da2cadcc6da86abff6772de65280ace2cabc94John McCall /// EnterDtorCleanups - Enter the cleanups necessary to complete the 131450da2cadcc6da86abff6772de65280ace2cabc94John McCall /// given phase of destruction for a destructor. The end result 131550da2cadcc6da86abff6772de65280ace2cabc94John McCall /// should call destructors on members and base classes in reverse 131650da2cadcc6da86abff6772de65280ace2cabc94John McCall /// order of their construction. 131750da2cadcc6da86abff6772de65280ace2cabc94John McCall void EnterDtorCleanups(const CXXDestructorDecl *Dtor, CXXDtorType Type); 13181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13197255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner /// ShouldInstrumentFunction - Return true if the current function should be 13207255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner /// instrumented with __cyg_profile_func_* calls 13217255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner bool ShouldInstrumentFunction(); 13227255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner 13237255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner /// EmitFunctionInstrumentation - Emit LLVM code to call the specified 13247255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner /// instrumentation function with the current function and the call site, if 13257255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner /// function instrumentation is enabled. 13267255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner void EmitFunctionInstrumentation(const char *Fn); 13277255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner 1328be4c8705e499b55548467eb7adaa23cbc6edfef9Roman Divacky /// EmitMCountInstrumentation - Emit call to .mcount. 1329be4c8705e499b55548467eb7adaa23cbc6edfef9Roman Divacky void EmitMCountInstrumentation(); 1330be4c8705e499b55548467eb7adaa23cbc6edfef9Roman Divacky 13310dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitFunctionProlog - Emit the target specific LLVM code to load the 13320dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// arguments for the given function. This is also responsible for naming the 13330dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// LLVM function arguments. 133488b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar void EmitFunctionProlog(const CGFunctionInfo &FI, 133588b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar llvm::Function *Fn, 133617b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar const FunctionArgList &Args); 133717b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar 13380dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitFunctionEpilog - Emit the target specific LLVM code to return the 13390dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// given temporary. 13404ee7dc2369c1f0257a73b2e83a7d38fdebdd9176Nick Lewycky void EmitFunctionEpilog(const CGFunctionInfo &FI, bool EmitRetDbgLoc, 13414ee7dc2369c1f0257a73b2e83a7d38fdebdd9176Nick Lewycky SourceLocation EndLoc); 134217b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar 1343cce3d4f9812182ed4e551b7cf0fc86576be8d9c5Mike Stump /// EmitStartEHSpec - Emit the start of the exception spec. 1344cce3d4f9812182ed4e551b7cf0fc86576be8d9c5Mike Stump void EmitStartEHSpec(const Decl *D); 1345cce3d4f9812182ed4e551b7cf0fc86576be8d9c5Mike Stump 1346cce3d4f9812182ed4e551b7cf0fc86576be8d9c5Mike Stump /// EmitEndEHSpec - Emit the end of the exception spec. 1347cce3d4f9812182ed4e551b7cf0fc86576be8d9c5Mike Stump void EmitEndEHSpec(const Decl *D); 1348cce3d4f9812182ed4e551b7cf0fc86576be8d9c5Mike Stump 1349f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// getTerminateLandingPad - Return a landing pad that just calls terminate. 1350f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *getTerminateLandingPad(); 1351f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 1352f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// getTerminateHandler - Return a handler (not a landing pad, just 1353f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// a catch handler) that just calls terminate. This is used when 1354f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// a terminate scope encloses a try. 13559b39c51ae3c547568ac42325f94b4197618f6b18Mike Stump llvm::BasicBlock *getTerminateHandler(); 13569b39c51ae3c547568ac42325f94b4197618f6b18Mike Stump 13579cbe4f0ba01ec304e1e3d071c071f7bca33631c0Chris Lattner llvm::Type *ConvertTypeForMem(QualType T); 13589cbe4f0ba01ec304e1e3d071c071f7bca33631c0Chris Lattner llvm::Type *ConvertType(QualType T); 13599cbe4f0ba01ec304e1e3d071c071f7bca33631c0Chris Lattner llvm::Type *ConvertType(const TypeDecl *T) { 1360bff225ecf77fb891596ecb1b27196310d268365eJohn McCall return ConvertType(getContext().getTypeDeclType(T)); 1361bff225ecf77fb891596ecb1b27196310d268365eJohn McCall } 1362c8aa5f1f264fb230c38182adab944232bb160c2bChris Lattner 13630dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// LoadObjCSelf - Load the value of self. This function is only valid while 13640dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// generating code for an Objective-C method. 1365c8aa5f1f264fb230c38182adab944232bb160c2bChris Lattner llvm::Value *LoadObjCSelf(); 13660dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 13670dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// TypeOfSelfObject - Return type of object that this self represents. 136845012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian QualType TypeOfSelfObject(); 13694111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner 13705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// hasAggregateLLVMType - Return true if the specified AST type will map into 13715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// an aggregate LLVM type or is void. 13729d232c884ea9872d6555df0fd7359699819bc1f1John McCall static TypeEvaluationKind getEvaluationKind(QualType T); 13739d232c884ea9872d6555df0fd7359699819bc1f1John McCall 13749d232c884ea9872d6555df0fd7359699819bc1f1John McCall static bool hasScalarEvaluationKind(QualType T) { 13759d232c884ea9872d6555df0fd7359699819bc1f1John McCall return getEvaluationKind(T) == TEK_Scalar; 13769d232c884ea9872d6555df0fd7359699819bc1f1John McCall } 13779d232c884ea9872d6555df0fd7359699819bc1f1John McCall 13789d232c884ea9872d6555df0fd7359699819bc1f1John McCall static bool hasAggregateEvaluationKind(QualType T) { 13799d232c884ea9872d6555df0fd7359699819bc1f1John McCall return getEvaluationKind(T) == TEK_Aggregate; 13809d232c884ea9872d6555df0fd7359699819bc1f1John McCall } 138155e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar 138255e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar /// createBasicBlock - Create an LLVM basic block. 13834def70d3040e73707c738f7c366737a986135edfRichard Smith llvm::BasicBlock *createBasicBlock(const Twine &name = "", 13846bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines llvm::Function *parent = nullptr, 13856bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines llvm::BasicBlock *before = nullptr) { 138629ea6729155c759836be4b5453bee9ef8e1e97eeDaniel Dunbar#ifdef NDEBUG 1387d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall return llvm::BasicBlock::Create(getLLVMContext(), "", parent, before); 138829ea6729155c759836be4b5453bee9ef8e1e97eeDaniel Dunbar#else 1389d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall return llvm::BasicBlock::Create(getLLVMContext(), name, parent, before); 139029ea6729155c759836be4b5453bee9ef8e1e97eeDaniel Dunbar#endif 139155e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar } 13920dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 13935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getBasicBlockForLabel - Return the LLVM basicblock that the specified 13945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// label maps to. 1395ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner JumpDest getJumpDestForLabel(const LabelDecl *S); 13960dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1397f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// SimplifyForwardingBlocks - If the given basic block is only a branch to 1398f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// another basic block, simplify it. This assumes that no other code could 1399f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// potentially reference the basic block. 1400aa5bd87f1fd5f9ca47924248817c89325759b30eDaniel Dunbar void SimplifyForwardingBlocks(llvm::BasicBlock *BB); 1401aa5bd87f1fd5f9ca47924248817c89325759b30eDaniel Dunbar 14020dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitBlock - Emit the given block \arg BB and set it as the insert point, 14030dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// adding a fall-through branch from the current insert block if 14040dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// necessary. It is legal to call this function even if there is no current 14050dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// insertion point. 1406a0c21a8faa79e88ac432d116eca58f7a7217195dDaniel Dunbar /// 14070dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// IsFinished - If true, indicates that the caller has finished emitting 14080dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// branches to the given block and does not expect to emit code into it. This 14090dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// means the block can be ignored if it is unreachable. 1410a0c21a8faa79e88ac432d116eca58f7a7217195dDaniel Dunbar void EmitBlock(llvm::BasicBlock *BB, bool IsFinished=false); 1411824e3bd76b2e32db2ec6e4d2d113413e518d1c63Daniel Dunbar 1412777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall /// EmitBlockAfterUses - Emit the given block somewhere hopefully 1413777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall /// near its uses, and leave the insertion point in it. 1414777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall void EmitBlockAfterUses(llvm::BasicBlock *BB); 1415777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall 14160dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitBranch - Emit a branch to the specified basic block from the current 14170dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// insert block, taking care to avoid creation of branches from dummy 14180dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// blocks. It is legal to call this function even if there is no current 14190dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// insertion point. 14205e08ad3cc62ab94649959ae227a9a411a729bf49Daniel Dunbar /// 14210dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// This function clears the current insertion point. The caller should follow 14220dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// calls to this function with calls to Emit*Block prior to generation new 14230dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// code. 1424d57a871339c7c98d58d93108b806f59bdf4e13e2Daniel Dunbar void EmitBranch(llvm::BasicBlock *Block); 1425d57a871339c7c98d58d93108b806f59bdf4e13e2Daniel Dunbar 14260dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// HaveInsertPoint - True if an insertion point is defined. If not, this 14270dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// indicates that the current code being emitted is unreachable. 14280dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump bool HaveInsertPoint() const { 14296bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines return Builder.GetInsertBlock() != nullptr; 1430a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar } 1431a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 14320dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EnsureInsertPoint - Ensure that an insertion point is defined so that 14330dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// emitted IR has a place to go. Note that by definition, if this function 14340dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// creates a block then that block is unreachable; callers may do better to 14350dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// detect when no insertion point is defined and simply skip IR generation. 1436a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar void EnsureInsertPoint() { 1437a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar if (!HaveInsertPoint()) 1438a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar EmitBlock(createBasicBlock()); 1439a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar } 14400dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1441488e993a135ce700b982bf099c3d6b856301d642Daniel Dunbar /// ErrorUnsupported - Print out an error that codegen doesn't support the 1442dc5e8268292046114ffe02e48773572a91a310f1Chris Lattner /// specified stmt yet. 14430a1c862914664029e3b6693e134cf3ccbf423844David Blaikie void ErrorUnsupported(const Stmt *S, const char *Type); 14445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 14465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Helpers 14475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 14480dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 14496da2c716017d5c8530ec99779524491ebc5dadb8Eli Friedman LValue MakeAddrLValue(llvm::Value *V, QualType T, 14506da2c716017d5c8530ec99779524491ebc5dadb8Eli Friedman CharUnits Alignment = CharUnits()) { 14513d5aff5d3036b0ff09d114857cd2276134b3d8c9Dan Gohman return LValue::MakeAddr(V, T, Alignment, getContext(), 14523d5aff5d3036b0ff09d114857cd2276134b3d8c9Dan Gohman CGM.getTBAAInfo(T)); 14532f77b3d57031ded0de2b7b977fb63b4660f82624Eli Friedman } 1454e0c1168ec7910a1a7ed08df4d4f0c58c2fa2ecd1John McCall 1455176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines LValue MakeNaturalAlignAddrLValue(llvm::Value *V, QualType T); 14565cf8bfec711116b3c4acc70a00717b2e119e7550Daniel Dunbar 14575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// CreateTempAlloca - This creates a alloca and inserts it into the entry 1458195337d2e5d4625ae9dc1328c7cdbc7115b0261bDaniel Dunbar /// block. The caller is responsible for setting an appropriate alignment on 1459195337d2e5d4625ae9dc1328c7cdbc7115b0261bDaniel Dunbar /// the alloca. 14602acc6e3feda5e4f7d9009bdcf8b1cd777fecfe2dChris Lattner llvm::AllocaInst *CreateTempAlloca(llvm::Type *Ty, 14618cc488fefb2fb04bc8d5398da29f0182f97934cfChris Lattner const Twine &Name = "tmp"); 14620dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1463ac418162692a951ca3796d6830496a85a2d12493John McCall /// InitTempAlloca - Provide an initial value for the given alloca. 1464ac418162692a951ca3796d6830496a85a2d12493John McCall void InitTempAlloca(llvm::AllocaInst *Alloca, llvm::Value *Value); 1465ac418162692a951ca3796d6830496a85a2d12493John McCall 14669bd4da2cfa8b956b851200db8f9a37e175edbb15Daniel Dunbar /// CreateIRTemp - Create a temporary IR object of the given type, with 14679bd4da2cfa8b956b851200db8f9a37e175edbb15Daniel Dunbar /// appropriate alignment. This routine should only be used when an temporary 14689bd4da2cfa8b956b851200db8f9a37e175edbb15Daniel Dunbar /// value needs to be stored into an alloca (for example, to avoid explicit 14699bd4da2cfa8b956b851200db8f9a37e175edbb15Daniel Dunbar /// PHI construction), but the type is the IR type, not the type appropriate 14709bd4da2cfa8b956b851200db8f9a37e175edbb15Daniel Dunbar /// for storing in memory. 14718cc488fefb2fb04bc8d5398da29f0182f97934cfChris Lattner llvm::AllocaInst *CreateIRTemp(QualType T, const Twine &Name = "tmp"); 14729bd4da2cfa8b956b851200db8f9a37e175edbb15Daniel Dunbar 1473195337d2e5d4625ae9dc1328c7cdbc7115b0261bDaniel Dunbar /// CreateMemTemp - Create a temporary memory object of the given type, with 1474195337d2e5d4625ae9dc1328c7cdbc7115b0261bDaniel Dunbar /// appropriate alignment. 14758cc488fefb2fb04bc8d5398da29f0182f97934cfChris Lattner llvm::AllocaInst *CreateMemTemp(QualType T, const Twine &Name = "tmp"); 1476195337d2e5d4625ae9dc1328c7cdbc7115b0261bDaniel Dunbar 1477558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// CreateAggTemp - Create a temporary memory object for the given 1478558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// aggregate type. 14798cc488fefb2fb04bc8d5398da29f0182f97934cfChris Lattner AggValueSlot CreateAggTemp(QualType T, const Twine &Name = "tmp") { 1480d7722d9d76a851e7897f4127626616d3b1b8e530Eli Friedman CharUnits Alignment = getContext().getTypeAlignInChars(T); 1481f394078fde147dcf27e9b6a7965517388d64dcb6Eli Friedman return AggValueSlot::forAddr(CreateMemTemp(T, Name), Alignment, 1482f394078fde147dcf27e9b6a7965517388d64dcb6Eli Friedman T.getQualifiers(), 14837c2349be2d11143a2e59a167fd43362a3bf4585eJohn McCall AggValueSlot::IsNotDestructed, 1484410ffb2bc5f072d58a73c14560345bcf77dec1ccJohn McCall AggValueSlot::DoesNotNeedGCBarriers, 1485649b4a1a9b5e6f768ca0cb84bd97b00f51083e15Chad Rosier AggValueSlot::IsNotAliased); 1486558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall } 1487558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall 1488651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines /// CreateInAllocaTmp - Create a temporary memory object for the given 1489651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines /// aggregate type. 1490651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines AggValueSlot CreateInAllocaTmp(QualType T, const Twine &Name = "inalloca"); 1491651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 1492d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall /// Emit a cast to void* in the appropriate address space. 1493d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall llvm::Value *EmitCastToVoidPtr(llvm::Value *value); 1494d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall 14955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EvaluateExprAsBool - Perform the usual unary conversions on the specified 14965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// expression and compare the result against zero, returning an Int1Ty value. 14975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::Value *EvaluateExprAsBool(const Expr *E); 14985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14992a41637a995affa1563f4d82a8b026e326a2faa0John McCall /// EmitIgnoredExpr - Emit an expression in a context which ignores the result. 15002a41637a995affa1563f4d82a8b026e326a2faa0John McCall void EmitIgnoredExpr(const Expr *E); 15012a41637a995affa1563f4d82a8b026e326a2faa0John McCall 15029b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// EmitAnyExpr - Emit code to compute the specified expression which can have 15039b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// any type. The result is returned as an RValue struct. If this is an 15049b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// aggregate expression, the aggloc/agglocvolatile arguments indicate where 15059b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// the result should be returned. 150649d1cd5a09ed3df353371fd7f206674a85e0fb45Mike Stump /// 150770517ca5c07c4b41ff8662b94ee22047b0299f8cDmitri Gribenko /// \param ignoreResult True if the resulting value isn't used. 1508558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall RValue EmitAnyExpr(const Expr *E, 1509e0c1168ec7910a1a7ed08df4d4f0c58c2fa2ecd1John McCall AggValueSlot aggSlot = AggValueSlot::ignored(), 1510e0c1168ec7910a1a7ed08df4d4f0c58c2fa2ecd1John McCall bool ignoreResult = false); 1511d9363c3a80168283b3da518b4e17f545a6246857Devang Patel 15120dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // EmitVAListRef - Emit a "reference" to a va_list; this is either the address 15130dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // or the value of the expression, depending on how va_list is defined. 15144fd0aa5803357d8c72eeac2cae15e12649ea08feEli Friedman llvm::Value *EmitVAListRef(const Expr *E); 15154fd0aa5803357d8c72eeac2cae15e12649ea08feEli Friedman 15160dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitAnyExprToTemp - Similary to EmitAnyExpr(), however, the result will 15170dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// always be accessible even if no aggregate location is provided. 1518558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall RValue EmitAnyExprToTemp(const Expr *E); 151946f45b9bec4a265ad8400a538e5ec3a5683617f1Daniel Dunbar 152060d3365b46eb826fba44483583c0051ac5c41fe3John McCall /// EmitAnyExprToMem - Emits the code necessary to evaluate an 1521649b4a1a9b5e6f768ca0cb84bd97b00f51083e15Chad Rosier /// arbitrary expression into the given memory location. 15223d3ec1c099ec8bfac3aa1fb0126fe515b7c7fa05John McCall void EmitAnyExprToMem(const Expr *E, llvm::Value *Location, 1523649b4a1a9b5e6f768ca0cb84bd97b00f51083e15Chad Rosier Qualifiers Quals, bool IsInitializer); 15243d3ec1c099ec8bfac3aa1fb0126fe515b7c7fa05John McCall 15253ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar void EmitAnyExprToExn(const Expr *E, llvm::Value *Addr); 15263ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar 152760d3365b46eb826fba44483583c0051ac5c41fe3John McCall /// EmitExprAsInit - Emits the code necessary to initialize a 152860d3365b46eb826fba44483583c0051ac5c41fe3John McCall /// location in memory with the given initializer. 15290e2c34f92f00628d48968dfea096d36381f494cbStephen Hines void EmitExprAsInit(const Expr *init, const ValueDecl *D, LValue lvalue, 15300e2c34f92f00628d48968dfea096d36381f494cbStephen Hines bool capturedByInit); 153160d3365b46eb826fba44483583c0051ac5c41fe3John McCall 15323ac83d69c61238cd0d38e90fcdd03390530ab2fbFariborz Jahanian /// hasVolatileMember - returns true if aggregate type has a volatile 15333ac83d69c61238cd0d38e90fcdd03390530ab2fbFariborz Jahanian /// member. 15343ac83d69c61238cd0d38e90fcdd03390530ab2fbFariborz Jahanian bool hasVolatileMember(QualType T) { 15353ac83d69c61238cd0d38e90fcdd03390530ab2fbFariborz Jahanian if (const RecordType *RT = T->getAs<RecordType>()) { 15363ac83d69c61238cd0d38e90fcdd03390530ab2fbFariborz Jahanian const RecordDecl *RD = cast<RecordDecl>(RT->getDecl()); 15373ac83d69c61238cd0d38e90fcdd03390530ab2fbFariborz Jahanian return RD->hasVolatileMember(); 15383ac83d69c61238cd0d38e90fcdd03390530ab2fbFariborz Jahanian } 15393ac83d69c61238cd0d38e90fcdd03390530ab2fbFariborz Jahanian return false; 15403ac83d69c61238cd0d38e90fcdd03390530ab2fbFariborz Jahanian } 15418fcbb8dfbc28b6279d22144e10ade401a6c03e9eArnaud A. de Grandmaison /// EmitAggregateCopy - Emit an aggregate assignment. 15426cacae8bf9597b8124cd40aedc189c04484e1990Benjamin Kramer /// 15436cacae8bf9597b8124cd40aedc189c04484e1990Benjamin Kramer /// The difference to EmitAggregateCopy is that tail padding is not copied. 15446cacae8bf9597b8124cd40aedc189c04484e1990Benjamin Kramer /// This is required for correctness when assigning non-POD structures in C++. 15456cacae8bf9597b8124cd40aedc189c04484e1990Benjamin Kramer void EmitAggregateAssign(llvm::Value *DestPtr, llvm::Value *SrcPtr, 15463ac83d69c61238cd0d38e90fcdd03390530ab2fbFariborz Jahanian QualType EltTy) { 15473ac83d69c61238cd0d38e90fcdd03390530ab2fbFariborz Jahanian bool IsVolatile = hasVolatileMember(EltTy); 15483ac83d69c61238cd0d38e90fcdd03390530ab2fbFariborz Jahanian EmitAggregateCopy(DestPtr, SrcPtr, EltTy, IsVolatile, CharUnits::Zero(), 15493ac83d69c61238cd0d38e90fcdd03390530ab2fbFariborz Jahanian true); 15506cacae8bf9597b8124cd40aedc189c04484e1990Benjamin Kramer } 15516cacae8bf9597b8124cd40aedc189c04484e1990Benjamin Kramer 15520e2c34f92f00628d48968dfea096d36381f494cbStephen Hines void EmitAggregateCopyCtor(llvm::Value *DestPtr, llvm::Value *SrcPtr, 15530e2c34f92f00628d48968dfea096d36381f494cbStephen Hines QualType DestTy, QualType SrcTy) { 15540e2c34f92f00628d48968dfea096d36381f494cbStephen Hines CharUnits DestTypeAlign = getContext().getTypeAlignInChars(DestTy); 15550e2c34f92f00628d48968dfea096d36381f494cbStephen Hines CharUnits SrcTypeAlign = getContext().getTypeAlignInChars(SrcTy); 15560e2c34f92f00628d48968dfea096d36381f494cbStephen Hines EmitAggregateCopy(DestPtr, SrcPtr, SrcTy, /*IsVolatile=*/false, 15570e2c34f92f00628d48968dfea096d36381f494cbStephen Hines std::min(DestTypeAlign, SrcTypeAlign), 15580e2c34f92f00628d48968dfea096d36381f494cbStephen Hines /*IsAssignment=*/false); 15590e2c34f92f00628d48968dfea096d36381f494cbStephen Hines } 15600e2c34f92f00628d48968dfea096d36381f494cbStephen Hines 15618fcbb8dfbc28b6279d22144e10ade401a6c03e9eArnaud A. de Grandmaison /// EmitAggregateCopy - Emit an aggregate copy. 156227fe2e6c97a3782a0639d87b460741e8ba5d076dMike Stump /// 1563f3477c13eeaf11b32a41f181398fb5deffd0dd73Sylvestre Ledru /// \param isVolatile - True iff either the source or the destination is 156427fe2e6c97a3782a0639d87b460741e8ba5d076dMike Stump /// volatile. 15656cacae8bf9597b8124cd40aedc189c04484e1990Benjamin Kramer /// \param isAssignment - If false, allow padding to be copied. This often 15666cacae8bf9597b8124cd40aedc189c04484e1990Benjamin Kramer /// yields more efficient. 15677482d12c345c6391f8956850545e2d4aa7701ce6Daniel Dunbar void EmitAggregateCopy(llvm::Value *DestPtr, llvm::Value *SrcPtr, 1568bd7d82878c1588afccbee6c68fa6e17bbbab7f2cEli Friedman QualType EltTy, bool isVolatile=false, 15696cacae8bf9597b8124cd40aedc189c04484e1990Benjamin Kramer CharUnits Alignment = CharUnits::Zero(), 15706cacae8bf9597b8124cd40aedc189c04484e1990Benjamin Kramer bool isAssignment = false); 15717482d12c345c6391f8956850545e2d4aa7701ce6Daniel Dunbar 157251b09f2c528c8460b5465c676173324e44176d62Devang Patel /// StartBlock - Start new block named N. If insert block is a dummy block 157351b09f2c528c8460b5465c676173324e44176d62Devang Patel /// then reuse it. 157451b09f2c528c8460b5465c676173324e44176d62Devang Patel void StartBlock(const char *N); 157551b09f2c528c8460b5465c676173324e44176d62Devang Patel 1576dde0a94120915fa925d1ffcdb997c7b44dc9fa21Anders Carlsson /// GetAddrOfLocalVar - Return the address of a local variable. 15774c40d98ab7acf5f27fa89b17bd8fc0ef7683df37John McCall llvm::Value *GetAddrOfLocalVar(const VarDecl *VD) { 15784c40d98ab7acf5f27fa89b17bd8fc0ef7683df37John McCall llvm::Value *Res = LocalDeclMap[VD]; 15794c40d98ab7acf5f27fa89b17bd8fc0ef7683df37John McCall assert(Res && "Invalid argument to GetAddrOfLocalVar(), no decl!"); 15804c40d98ab7acf5f27fa89b17bd8fc0ef7683df37John McCall return Res; 15814c40d98ab7acf5f27fa89b17bd8fc0ef7683df37John McCall } 15820dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 158356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// getOpaqueLValueMapping - Given an opaque value expression (which 158456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// must be mapped to an l-value), return its mapping. 158556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall const LValue &getOpaqueLValueMapping(const OpaqueValueExpr *e) { 158656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall assert(OpaqueValueMapping::shouldBindAsLValue(e)); 158756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 158856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall llvm::DenseMap<const OpaqueValueExpr*,LValue>::iterator 158956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall it = OpaqueLValues.find(e); 159056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall assert(it != OpaqueLValues.end() && "no mapping for opaque value!"); 159156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return it->second; 159256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 159356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 159456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// getOpaqueRValueMapping - Given an opaque value expression (which 159556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// must be mapped to an r-value), return its mapping. 159656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall const RValue &getOpaqueRValueMapping(const OpaqueValueExpr *e) { 159756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall assert(!OpaqueValueMapping::shouldBindAsLValue(e)); 159856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 159956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall llvm::DenseMap<const OpaqueValueExpr*,RValue>::iterator 160056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall it = OpaqueRValues.find(e); 160156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall assert(it != OpaqueRValues.end() && "no mapping for opaque value!"); 1602e996ffd240f20a1048179d7727a6ee3227261921John McCall return it->second; 1603e996ffd240f20a1048179d7727a6ee3227261921John McCall } 1604e996ffd240f20a1048179d7727a6ee3227261921John McCall 16054f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman /// getAccessedFieldNo - Given an encoded value and a result number, return 16064f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman /// the input field number being accessed. 16074f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman static unsigned getAccessedFieldNo(unsigned Idx, const llvm::Constant *Elts); 16084f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman 1609ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner llvm::BlockAddress *GetAddrOfLabel(const LabelDecl *L); 16103d00fdc82fd550ae4bfbb2e700a1fc85bbd6d6fdChris Lattner llvm::BasicBlock *GetIndirectGotoBlock(); 16110ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar 16121884eb0b5c55edda4893ddec45e7dbad79758782Anders Carlsson /// EmitNullInitialization - Generate code to set a value of the given type to 16131884eb0b5c55edda4893ddec45e7dbad79758782Anders Carlsson /// null, If the type contains data member pointers, they will be initialized 16141884eb0b5c55edda4893ddec45e7dbad79758782Anders Carlsson /// to -1 in accordance with the Itanium C++ ABI. 16151884eb0b5c55edda4893ddec45e7dbad79758782Anders Carlsson void EmitNullInitialization(llvm::Value *DestPtr, QualType Ty); 1616ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson 1617ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson // EmitVAArg - Generate code to get an argument from the passed in pointer 1618ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson // and update it accordingly. The return value is a pointer to the argument. 1619ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson // FIXME: We should be able to get rid of this method and use the va_arg 16200dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // instruction in LLVM instead once it works well enough. 1621ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson llvm::Value *EmitVAArg(llvm::Value *VAListAddr, QualType Ty); 1622f666b7780d04186521adcaedb0e15dfa4d5e6933Anders Carlsson 1623bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall /// emitArrayLength - Compute the length of an array, even if it's a 1624bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall /// VLA, and drill down to the base element type. 1625bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall llvm::Value *emitArrayLength(const ArrayType *arrayType, 1626bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall QualType &baseType, 1627bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall llvm::Value *&addr); 1628bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall 1629bc8d40d85f3fa1e34569834916f18fecaa635152John McCall /// EmitVLASize - Capture all the sizes for the VLA expressions in 1630bc8d40d85f3fa1e34569834916f18fecaa635152John McCall /// the given variably-modified type and store them in the VLASizeMap. 1631d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// 1632d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// This function can be called with a null (unreachable) insert point. 1633bc8d40d85f3fa1e34569834916f18fecaa635152John McCall void EmitVariablyModifiedType(QualType Ty); 1634bc8d40d85f3fa1e34569834916f18fecaa635152John McCall 1635bc8d40d85f3fa1e34569834916f18fecaa635152John McCall /// getVLASize - Returns an LLVM value that corresponds to the size, 1636bc8d40d85f3fa1e34569834916f18fecaa635152John McCall /// in non-variably-sized elements, of a variable length array type, 1637bc8d40d85f3fa1e34569834916f18fecaa635152John McCall /// plus that largest non-variably-sized element type. Assumes that 1638bc8d40d85f3fa1e34569834916f18fecaa635152John McCall /// the type has already been emitted with EmitVariablyModifiedType. 1639bc8d40d85f3fa1e34569834916f18fecaa635152John McCall std::pair<llvm::Value*,QualType> getVLASize(const VariableArrayType *vla); 1640bc8d40d85f3fa1e34569834916f18fecaa635152John McCall std::pair<llvm::Value*,QualType> getVLASize(QualType vla); 1641dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson 16425f4307b7ba164b03c853c8d3eb4674d33f8967a6Anders Carlsson /// LoadCXXThis - Load the value of 'this'. This function is only valid while 16435f4307b7ba164b03c853c8d3eb4674d33f8967a6Anders Carlsson /// generating code for an C++ member function. 16442504941793b549323f9d29c62507cf21d865fadeJohn McCall llvm::Value *LoadCXXThis() { 16452504941793b549323f9d29c62507cf21d865fadeJohn McCall assert(CXXThisValue && "no 'this' value for this function"); 16462504941793b549323f9d29c62507cf21d865fadeJohn McCall return CXXThisValue; 16472504941793b549323f9d29c62507cf21d865fadeJohn McCall } 16481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1649c997d4278d329e18891aac9698fb991b2d4622ebAnders Carlsson /// LoadCXXVTT - Load the VTT parameter to base constructors/destructors have 1650c997d4278d329e18891aac9698fb991b2d4622ebAnders Carlsson /// virtual bases. 165159660c21178b6af518bd4b564e032d5c9cc218cbTimur Iskhodzhanov // FIXME: Every place that calls LoadCXXVTT is something 165259660c21178b6af518bd4b564e032d5c9cc218cbTimur Iskhodzhanov // that needs to be abstracted properly. 16532504941793b549323f9d29c62507cf21d865fadeJohn McCall llvm::Value *LoadCXXVTT() { 165459660c21178b6af518bd4b564e032d5c9cc218cbTimur Iskhodzhanov assert(CXXStructorImplicitParamValue && "no VTT value for this function"); 165559660c21178b6af518bd4b564e032d5c9cc218cbTimur Iskhodzhanov return CXXStructorImplicitParamValue; 165659660c21178b6af518bd4b564e032d5c9cc218cbTimur Iskhodzhanov } 165759660c21178b6af518bd4b564e032d5c9cc218cbTimur Iskhodzhanov 165859660c21178b6af518bd4b564e032d5c9cc218cbTimur Iskhodzhanov /// LoadCXXStructorImplicitParam - Load the implicit parameter 165959660c21178b6af518bd4b564e032d5c9cc218cbTimur Iskhodzhanov /// for a constructor/destructor. 166059660c21178b6af518bd4b564e032d5c9cc218cbTimur Iskhodzhanov llvm::Value *LoadCXXStructorImplicitParam() { 166159660c21178b6af518bd4b564e032d5c9cc218cbTimur Iskhodzhanov assert(CXXStructorImplicitParamValue && 166259660c21178b6af518bd4b564e032d5c9cc218cbTimur Iskhodzhanov "no implicit argument value for this function"); 166359660c21178b6af518bd4b564e032d5c9cc218cbTimur Iskhodzhanov return CXXStructorImplicitParamValue; 16642504941793b549323f9d29c62507cf21d865fadeJohn McCall } 1665bff225ecf77fb891596ecb1b27196310d268365eJohn McCall 1666bff225ecf77fb891596ecb1b27196310d268365eJohn McCall /// GetAddressOfBaseOfCompleteClass - Convert the given pointer to a 16678561a8666c70f924c8f0209c41b9b77bbbf90607Anders Carlsson /// complete class to the given direct base. 16688561a8666c70f924c8f0209c41b9b77bbbf90607Anders Carlsson llvm::Value * 16698561a8666c70f924c8f0209c41b9b77bbbf90607Anders Carlsson GetAddressOfDirectBaseInCompleteClass(llvm::Value *Value, 16708561a8666c70f924c8f0209c41b9b77bbbf90607Anders Carlsson const CXXRecordDecl *Derived, 16718561a8666c70f924c8f0209c41b9b77bbbf90607Anders Carlsson const CXXRecordDecl *Base, 16728561a8666c70f924c8f0209c41b9b77bbbf90607Anders Carlsson bool BaseIsVirtual); 1673a88ad5618fcb07c5374c79d6781a33234984b039Anders Carlsson 1674f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// GetAddressOfBaseClass - This function will add the necessary delta to the 1675f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// load of 'this' and returns address of the base class. 16769cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer llvm::Value *GetAddressOfBaseClass(llvm::Value *Value, 16778561a8666c70f924c8f0209c41b9b77bbbf90607Anders Carlsson const CXXRecordDecl *Derived, 1678f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastExpr::path_const_iterator PathBegin, 1679f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastExpr::path_const_iterator PathEnd, 1680176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines bool NullCheckValue, SourceLocation Loc); 168134a2d384c745ebc39cae45dc1c0c4a6a7012e09bAnders Carlsson 1682a3697c9c155bda93fd2802f37084b620f4738822Anders Carlsson llvm::Value *GetAddressOfDerivedClass(llvm::Value *Value, 16838561a8666c70f924c8f0209c41b9b77bbbf90607Anders Carlsson const CXXRecordDecl *Derived, 1684f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastExpr::path_const_iterator PathBegin, 1685f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastExpr::path_const_iterator PathEnd, 16865a0f49ebc83e7fe0da07b9964c44b0a7fae270cbAnders Carlsson bool NullCheckValue); 1687a3697c9c155bda93fd2802f37084b620f4738822Anders Carlsson 16881d4fff5551c2347010b955b4337a2aa7d65a050eTimur Iskhodzhanov /// GetVTTParameter - Return the VTT parameter that should be passed to a 16891d4fff5551c2347010b955b4337a2aa7d65a050eTimur Iskhodzhanov /// base constructor/destructor with virtual bases. 16901d4fff5551c2347010b955b4337a2aa7d65a050eTimur Iskhodzhanov /// FIXME: VTTs are Itanium ABI-specific, so the definition should move 16911d4fff5551c2347010b955b4337a2aa7d65a050eTimur Iskhodzhanov /// to ItaniumCXXABI.cpp together with all the references to VTT. 16921d4fff5551c2347010b955b4337a2aa7d65a050eTimur Iskhodzhanov llvm::Value *GetVTTParameter(GlobalDecl GD, bool ForVirtualBase, 16931d4fff5551c2347010b955b4337a2aa7d65a050eTimur Iskhodzhanov bool Delegating); 16941d4fff5551c2347010b955b4337a2aa7d65a050eTimur Iskhodzhanov 1695c0bf462cf35fe050bddbd8bff967298e4a67e79dJohn McCall void EmitDelegateCXXConstructorCall(const CXXConstructorDecl *Ctor, 1696c0bf462cf35fe050bddbd8bff967298e4a67e79dJohn McCall CXXCtorType CtorType, 16974ee7dc2369c1f0257a73b2e83a7d38fdebdd9176Nick Lewycky const FunctionArgList &Args, 16984ee7dc2369c1f0257a73b2e83a7d38fdebdd9176Nick Lewycky SourceLocation Loc); 1699059ce0d92eb5a7da900ae735dc0a2ea3d64f4b0bSean Hunt // It's important not to confuse this and the previous function. Delegating 1700059ce0d92eb5a7da900ae735dc0a2ea3d64f4b0bSean Hunt // constructors are the C++0x feature. The constructor delegate optimization 1701059ce0d92eb5a7da900ae735dc0a2ea3d64f4b0bSean Hunt // is used to reduce duplication in the base and complete consturctors where 1702059ce0d92eb5a7da900ae735dc0a2ea3d64f4b0bSean Hunt // they are substantially the same. 1703059ce0d92eb5a7da900ae735dc0a2ea3d64f4b0bSean Hunt void EmitDelegatingCXXConstructorCall(const CXXConstructorDecl *Ctor, 1704059ce0d92eb5a7da900ae735dc0a2ea3d64f4b0bSean Hunt const FunctionArgList &Args); 1705155ed4a23366f4514befb1c9f5f89d16f8b8b6dbAnders Carlsson void EmitCXXConstructorCall(const CXXConstructorDecl *D, CXXCtorType Type, 1706378e1e739aed97e9b278beeb20e9f5bbe34c0232Douglas Gregor bool ForVirtualBase, bool Delegating, 1707176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines llvm::Value *This, const CXXConstructExpr *E); 1708176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines 170934999876e215b22febc240b1a6dc054215d12f9cFariborz Jahanian void EmitSynthesizedCXXCopyCtorCall(const CXXConstructorDecl *D, 171034999876e215b22febc240b1a6dc054215d12f9cFariborz Jahanian llvm::Value *This, llvm::Value *Src, 1711176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines const CXXConstructExpr *E); 17121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1713288dcaf329c49b01dacd5c1dd9f35609555feecdFariborz Jahanian void EmitCXXAggrConstructorCall(const CXXConstructorDecl *D, 1714569c1f4a6c703eaa8b963bed7d5c2fd5d4569e93Anders Carlsson const ConstantArrayType *ArrayTy, 17155d4d946ec2d88696fd8422aeb64dc29688e6a2c1Anders Carlsson llvm::Value *ArrayPtr, 1716176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines const CXXConstructExpr *E, 171759174c0633fb5cde41735cfbff5744bdf837e8d9Douglas Gregor bool ZeroInitialization = false); 17189cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 1719569c1f4a6c703eaa8b963bed7d5c2fd5d4569e93Anders Carlsson void EmitCXXAggrConstructorCall(const CXXConstructorDecl *D, 1720569c1f4a6c703eaa8b963bed7d5c2fd5d4569e93Anders Carlsson llvm::Value *NumElements, 17215d4d946ec2d88696fd8422aeb64dc29688e6a2c1Anders Carlsson llvm::Value *ArrayPtr, 1722176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines const CXXConstructExpr *E, 172359174c0633fb5cde41735cfbff5744bdf837e8d9Douglas Gregor bool ZeroInitialization = false); 1724b14095aa98c6fedd3625920c4ce834bcaf24d9f7Anders Carlsson 1725bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall static Destroyer destroyCXXObject; 1726bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall 17277267c1693abe7875b0c57268be05005ae013c6c9Anders Carlsson void EmitCXXDestructorCall(const CXXDestructorDecl *D, CXXDtorType Type, 1728378e1e739aed97e9b278beeb20e9f5bbe34c0232Douglas Gregor bool ForVirtualBase, bool Delegating, 1729378e1e739aed97e9b278beeb20e9f5bbe34c0232Douglas Gregor llvm::Value *This); 17309cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 1731197056726ed6412501130c2ef2ff69009772aa65John McCall void EmitNewArrayInitializer(const CXXNewExpr *E, QualType elementType, 1732c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines llvm::Value *NewPtr, llvm::Value *NumElements, 1733c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines llvm::Value *AllocSizeWithoutCookie); 17341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 173586811609d9353e3aed198045d56e790eb3b6118cPeter Collingbourne void EmitCXXTemporary(const CXXTemporary *Temporary, QualType TempType, 173686811609d9353e3aed198045d56e790eb3b6118cPeter Collingbourne llvm::Value *Ptr); 17371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1738a00703dccbdc6cc4a293db38477dea7db5538c7eAnders Carlsson llvm::Value *EmitCXXNewExpr(const CXXNewExpr *E); 173960e282cc1e508be327b0481cecedc206873cb86aAnders Carlsson void EmitCXXDeleteExpr(const CXXDeleteExpr *E); 17401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17414bf8152799ec41796f989ea1b94f6f1bac349117Eli Friedman void EmitDeleteCall(const FunctionDecl *DeleteFD, llvm::Value *Ptr, 17424bf8152799ec41796f989ea1b94f6f1bac349117Eli Friedman QualType DeleteTy); 17434bf8152799ec41796f989ea1b94f6f1bac349117Eli Friedman 1744c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines RValue EmitBuiltinNewDeleteCall(const FunctionProtoType *Type, 1745c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines const Expr *Arg, bool IsDelete); 1746c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines 1747c2e84ae9a6d25cea3e583c768e576b4c981ec028Mike Stump llvm::Value* EmitCXXTypeidExpr(const CXXTypeidExpr *E); 1748c849c052d6b4b70f2651c1969531861a5f230053Mike Stump llvm::Value *EmitDynamicCast(llvm::Value *V, const CXXDynamicCastExpr *DCE); 1749c5f804636e367ef744fd24cf88f7c956a5af0434Nico Weber llvm::Value* EmitCXXUuidofExpr(const CXXUuidofExpr *E); 1750c2e84ae9a6d25cea3e583c768e576b4c981ec028Mike Stump 17512c9f87ca5cccbfdaad82762368af5b2323320653Richard Smith /// \brief Situations in which we might emit a check for the suitability of a 17522c9f87ca5cccbfdaad82762368af5b2323320653Richard Smith /// pointer or glvalue. 17537ac9ef1c82c779a5348ed11b3d10e01c58803b35Richard Smith enum TypeCheckKind { 17542c9f87ca5cccbfdaad82762368af5b2323320653Richard Smith /// Checking the operand of a load. Must be suitably sized and aligned. 17557ac9ef1c82c779a5348ed11b3d10e01c58803b35Richard Smith TCK_Load, 17562c9f87ca5cccbfdaad82762368af5b2323320653Richard Smith /// Checking the destination of a store. Must be suitably sized and aligned. 17577ac9ef1c82c779a5348ed11b3d10e01c58803b35Richard Smith TCK_Store, 17582c9f87ca5cccbfdaad82762368af5b2323320653Richard Smith /// Checking the bound value in a reference binding. Must be suitably sized 17592c9f87ca5cccbfdaad82762368af5b2323320653Richard Smith /// and aligned, but is not required to refer to an object (until the 17602c9f87ca5cccbfdaad82762368af5b2323320653Richard Smith /// reference is used), per core issue 453. 17617ac9ef1c82c779a5348ed11b3d10e01c58803b35Richard Smith TCK_ReferenceBinding, 17622c9f87ca5cccbfdaad82762368af5b2323320653Richard Smith /// Checking the object expression in a non-static data member access. Must 17632c9f87ca5cccbfdaad82762368af5b2323320653Richard Smith /// be an object within its lifetime. 17647ac9ef1c82c779a5348ed11b3d10e01c58803b35Richard Smith TCK_MemberAccess, 17652c9f87ca5cccbfdaad82762368af5b2323320653Richard Smith /// Checking the 'this' pointer for a call to a non-static member function. 17662c9f87ca5cccbfdaad82762368af5b2323320653Richard Smith /// Must be an object within its lifetime. 17678e1cee6f23e2552b96b81e5ef419ab3f69c5b5c2Richard Smith TCK_MemberCall, 17688e1cee6f23e2552b96b81e5ef419ab3f69c5b5c2Richard Smith /// Checking the 'this' pointer for a constructor call. 1769c764830bdb6de82baed068889096bd3e52d4cbdaRichard Smith TCK_ConstructorCall, 1770c764830bdb6de82baed068889096bd3e52d4cbdaRichard Smith /// Checking the operand of a static_cast to a derived pointer type. Must be 1771c764830bdb6de82baed068889096bd3e52d4cbdaRichard Smith /// null or an object within its lifetime. 1772c764830bdb6de82baed068889096bd3e52d4cbdaRichard Smith TCK_DowncastPointer, 1773c764830bdb6de82baed068889096bd3e52d4cbdaRichard Smith /// Checking the operand of a static_cast to a derived reference type. Must 1774c764830bdb6de82baed068889096bd3e52d4cbdaRichard Smith /// be an object within its lifetime. 1775176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines TCK_DowncastReference, 1776176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines /// Checking the operand of a cast to a base object. Must be suitably sized 1777176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines /// and aligned. 1778176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines TCK_Upcast, 1779176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines /// Checking the operand of a cast to a virtual base object. Must be an 1780176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines /// object within its lifetime. 1781176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines TCK_UpcastToVirtualBase 17822c9f87ca5cccbfdaad82762368af5b2323320653Richard Smith }; 17832c9f87ca5cccbfdaad82762368af5b2323320653Richard Smith 1784c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines /// \brief Whether any type-checking sanitizers are enabled. If \c false, 1785c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines /// calls to EmitTypeCheck can be skipped. 1786c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines bool sanitizePerformTypeCheck() const; 1787c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines 17887ac9ef1c82c779a5348ed11b3d10e01c58803b35Richard Smith /// \brief Emit a check that \p V is the address of storage of the 17892c9f87ca5cccbfdaad82762368af5b2323320653Richard Smith /// appropriate size and alignment for an object of type \p Type. 17904def70d3040e73707c738f7c366737a986135edfRichard Smith void EmitTypeCheck(TypeCheckKind TCK, SourceLocation Loc, llvm::Value *V, 1791176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines QualType Type, CharUnits Alignment = CharUnits::Zero(), 1792176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines bool SkipNullCheck = false); 1793b14e62d5aee7522b98c410ee65bd750c2cfe6f01Mike Stump 1794a0a628f839cf50844cc0f226bd9cb72485f98f91Richard Smith /// \brief Emit a check that \p Base points into an array object, which 1795a0a628f839cf50844cc0f226bd9cb72485f98f91Richard Smith /// we can access at index \p Index. \p Accessed should be \c false if we 1796a0a628f839cf50844cc0f226bd9cb72485f98f91Richard Smith /// this expression is used as an lvalue, for instance in "&Arr[Idx]". 1797a0a628f839cf50844cc0f226bd9cb72485f98f91Richard Smith void EmitBoundsCheck(const Expr *E, const Expr *Base, llvm::Value *Index, 1798a0a628f839cf50844cc0f226bd9cb72485f98f91Richard Smith QualType IndexType, bool Accessed); 1799a0a628f839cf50844cc0f226bd9cb72485f98f91Richard Smith 1800dd36d328730d8c02915d0884541b45ec6ca0049dChris Lattner llvm::Value *EmitScalarPrePostIncDec(const UnaryOperator *E, LValue LV, 1801dd36d328730d8c02915d0884541b45ec6ca0049dChris Lattner bool isInc, bool isPre); 1802dd36d328730d8c02915d0884541b45ec6ca0049dChris Lattner ComplexPairTy EmitComplexPrePostIncDec(const UnaryOperator *E, LValue LV, 1803dd36d328730d8c02915d0884541b45ec6ca0049dChris Lattner bool isInc, bool isPre); 1804176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines 1805176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines void EmitAlignmentAssumption(llvm::Value *PtrValue, unsigned Alignment, 1806176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines llvm::Value *OffsetValue = nullptr) { 1807176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines Builder.CreateAlignmentAssumption(CGM.getDataLayout(), PtrValue, Alignment, 1808176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines OffsetValue); 1809176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines } 1810176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines 18115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 18125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Declaration Emission 18135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 18140dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1815d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// EmitDecl - Emit a declaration. 1816d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// 1817d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// This function can be called with a null (unreachable) insert point. 18185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitDecl(const Decl &D); 1819d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar 1820b6bbcc9995186799a60ce17d0c1acff31601653aJohn McCall /// EmitVarDecl - Emit a local variable declaration. 1821d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// 1822d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// This function can be called with a null (unreachable) insert point. 1823b6bbcc9995186799a60ce17d0c1acff31601653aJohn McCall void EmitVarDecl(const VarDecl &D); 1824d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar 18250e2c34f92f00628d48968dfea096d36381f494cbStephen Hines void EmitScalarInit(const Expr *init, const ValueDecl *D, LValue lvalue, 18260e2c34f92f00628d48968dfea096d36381f494cbStephen Hines bool capturedByInit); 18277acddacc921cd0b3f813443a8641eeddb82dfbd4John McCall void EmitScalarInit(llvm::Value *init, LValue lvalue); 1828f85e193739c953358c865005855253af4f68a497John McCall 1829f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall typedef void SpecialInitFn(CodeGenFunction &Init, const VarDecl &D, 1830f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::Value *Address); 1831f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 1832176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines /// \brief Determine whether the given initializer is trivial in the sense 1833176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines /// that it requires no code to be generated. 1834176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines bool isTrivialInitializer(const Expr *Init); 1835176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines 1836b6bbcc9995186799a60ce17d0c1acff31601653aJohn McCall /// EmitAutoVarDecl - Emit an auto variable declaration. 1837d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// 1838d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// This function can be called with a null (unreachable) insert point. 183934695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall void EmitAutoVarDecl(const VarDecl &D); 184034695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall 184134695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall class AutoVarEmission { 184234695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall friend class CodeGenFunction; 184334695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall 184457b3b6a60856eaec30fd876a8a3face8f7e3ad7bJohn McCall const VarDecl *Variable; 184534695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall 184634695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall /// The alignment of the variable. 184734695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall CharUnits Alignment; 184834695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall 184934695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall /// The address of the alloca. Null if the variable was emitted 185034695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall /// as a global constant. 185134695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall llvm::Value *Address; 185234695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall 185334695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall llvm::Value *NRVOFlag; 185434695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall 185534695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall /// True if the variable is a __block variable. 185634695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall bool IsByRef; 185734695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall 185834695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall /// True if the variable is of aggregate type and has a constant 185934695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall /// initializer. 186034695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall bool IsConstantAggregate; 186134695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall 1862495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem /// Non-null if we should use lifetime annotations. 1863495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem llvm::Value *SizeForLifetimeMarkers; 1864495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem 186557b3b6a60856eaec30fd876a8a3face8f7e3ad7bJohn McCall struct Invalid {}; 18666bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines AutoVarEmission(Invalid) : Variable(nullptr) {} 186757b3b6a60856eaec30fd876a8a3face8f7e3ad7bJohn McCall 186834695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall AutoVarEmission(const VarDecl &variable) 18696bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines : Variable(&variable), Address(nullptr), NRVOFlag(nullptr), 1870495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem IsByRef(false), IsConstantAggregate(false), 18716bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines SizeForLifetimeMarkers(nullptr) {} 187234695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall 18736bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines bool wasEmittedAsGlobal() const { return Address == nullptr; } 187434695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall 187534695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall public: 187657b3b6a60856eaec30fd876a8a3face8f7e3ad7bJohn McCall static AutoVarEmission invalid() { return AutoVarEmission(Invalid()); } 1877495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem 18786bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines bool useLifetimeMarkers() const { 18796bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines return SizeForLifetimeMarkers != nullptr; 18806bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines } 1881495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem llvm::Value *getSizeForLifetimeMarkers() const { 1882495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem assert(useLifetimeMarkers()); 1883495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem return SizeForLifetimeMarkers; 1884495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem } 1885495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem 1886495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem /// Returns the raw, allocated address, which is not necessarily 1887495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem /// the address of the object itself. 1888495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem llvm::Value *getAllocatedAddress() const { 1889495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem return Address; 1890495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem } 189157b3b6a60856eaec30fd876a8a3face8f7e3ad7bJohn McCall 189234695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall /// Returns the address of the object within this declaration. 189334695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall /// Note that this does not chase the forwarding pointer for 189434695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall /// __block decls. 189534695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall llvm::Value *getObjectAddress(CodeGenFunction &CGF) const { 189634695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall if (!IsByRef) return Address; 189734695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall 189834695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall return CGF.Builder.CreateStructGEP(Address, 189957b3b6a60856eaec30fd876a8a3face8f7e3ad7bJohn McCall CGF.getByRefValueLLVMField(Variable), 190057b3b6a60856eaec30fd876a8a3face8f7e3ad7bJohn McCall Variable->getNameAsString()); 190134695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall } 190234695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall }; 190334695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall AutoVarEmission EmitAutoVarAlloca(const VarDecl &var); 190434695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall void EmitAutoVarInit(const AutoVarEmission &emission); 190534695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall void EmitAutoVarCleanups(const AutoVarEmission &emission); 1906bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall void emitAutoVarTypeCleanup(const AutoVarEmission &emission, 1907bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall QualType::DestructionKind dtorKind); 1908d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar 1909b6bbcc9995186799a60ce17d0c1acff31601653aJohn McCall void EmitStaticVarDecl(const VarDecl &D, 1910b6bbcc9995186799a60ce17d0c1acff31601653aJohn McCall llvm::GlobalValue::LinkageTypes Linkage); 1911b7ec246872b412f0e7bb9e93eacfd78cfa6adfb3Daniel Dunbar 1912b7ec246872b412f0e7bb9e93eacfd78cfa6adfb3Daniel Dunbar /// EmitParmDecl - Emit a ParmVarDecl or an ImplicitParamDecl. 1913651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines void EmitParmDecl(const VarDecl &D, llvm::Value *Arg, bool ArgIsPointer, 1914651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines unsigned ArgNo); 19150dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 191656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// protectFromPeepholes - Protect a value that we're intending to 191756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// store to the side, but which will probably be used later, from 191856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// aggressive peepholing optimizations that might delete it. 191956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// 192056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// Pass the result to unprotectFromPeepholes to declare that 192156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// protection is no longer required. 192256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// 192356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// There's no particular reason why this shouldn't apply to 192456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// l-values, it's just that no existing peepholes work on pointers. 192556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall PeepholeProtection protectFromPeepholes(RValue rvalue); 192656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall void unprotectFromPeepholes(PeepholeProtection protection); 192756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 19285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 19295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Statement Emission 19305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 19315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 19320dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitStopPoint - Emit a debug stoppoint if we are emitting debug info. 19330912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar void EmitStopPoint(const Stmt *S); 19340912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar 19350dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitStmt - Emit the code for the statement \arg S. It is legal to call 19360dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// this function even if there is no current insertion point. 19370dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// 19380dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// This function may clear the current insertion point; callers should use 19390dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EnsureInsertPoint if they wish to subsequently generate code without first 19400dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// calling EmitBlock, EmitBranch, or EmitStmt. 19415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitStmt(const Stmt *S); 1942a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 19430912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar /// EmitSimpleStmt - Try to emit a "simple" statement which does not 19440dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// necessarily require an insertion point or debug information; typically 19450dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// because the statement amounts to a jump or a container of other 19460dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// statements. 19470912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar /// 19480912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar /// \return True if the statement was handled. 19490912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar bool EmitSimpleStmt(const Stmt *S); 19500912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar 19512ac2fa7726eb2f6fe445e098489e92931c31f7caEli Friedman llvm::Value *EmitCompoundStmt(const CompoundStmt &S, bool GetLast = false, 19522ac2fa7726eb2f6fe445e098489e92931c31f7caEli Friedman AggValueSlot AVS = AggValueSlot::ignored()); 19532ac2fa7726eb2f6fe445e098489e92931c31f7caEli Friedman llvm::Value *EmitCompoundStmtWithoutScope(const CompoundStmt &S, 19542ac2fa7726eb2f6fe445e098489e92931c31f7caEli Friedman bool GetLast = false, 19552ac2fa7726eb2f6fe445e098489e92931c31f7caEli Friedman AggValueSlot AVS = 19562ac2fa7726eb2f6fe445e098489e92931c31f7caEli Friedman AggValueSlot::ignored()); 1957a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 19580dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitLabel - Emit the block for the given label. It is legal to call this 19590dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// function even if there is no current insertion point. 1960ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner void EmitLabel(const LabelDecl *D); // helper for EmitLabelStmt. 1961a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 19625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitLabelStmt(const LabelStmt &S); 1963534986f2b21e6050bf00163cd6423fd92155a6edRichard Smith void EmitAttributedStmt(const AttributedStmt &S); 19645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitGotoStmt(const GotoStmt &S); 19650ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar void EmitIndirectGotoStmt(const IndirectGotoStmt &S); 19665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitIfStmt(const IfStmt &S); 1967c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines 1968c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines void EmitCondBrHints(llvm::LLVMContext &Context, llvm::BranchInst *CondBr, 1969176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines ArrayRef<const Attr *> Attrs); 1970c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines void EmitWhileStmt(const WhileStmt &S, 1971176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines ArrayRef<const Attr *> Attrs = None); 1972176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines void EmitDoStmt(const DoStmt &S, ArrayRef<const Attr *> Attrs = None); 1973c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines void EmitForStmt(const ForStmt &S, 1974176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines ArrayRef<const Attr *> Attrs = None); 19755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitReturnStmt(const ReturnStmt &S); 19765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitDeclStmt(const DeclStmt &S); 19770912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar void EmitBreakStmt(const BreakStmt &S); 19780912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar void EmitContinueStmt(const ContinueStmt &S); 197951b09f2c528c8460b5465c676173324e44176d62Devang Patel void EmitSwitchStmt(const SwitchStmt &S); 198051b09f2c528c8460b5465c676173324e44176d62Devang Patel void EmitDefaultStmt(const DefaultStmt &S); 198151b09f2c528c8460b5465c676173324e44176d62Devang Patel void EmitCaseStmt(const CaseStmt &S); 1982c049e4f406a7f7179eba98659044a32508e53289Devang Patel void EmitCaseStmtRange(const CaseStmt &S); 1983a23b91d542e336be5051ac54f394e860fb756911Chad Rosier void EmitAsmStmt(const AsmStmt &S); 19840dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 19853d8400d9a61aa4b63ff35e5cede405b32a41425eAnders Carlsson void EmitObjCForCollectionStmt(const ObjCForCollectionStmt &S); 198664d5d6c5903157c521af496479d06dc26032d718Anders Carlsson void EmitObjCAtTryStmt(const ObjCAtTryStmt &S); 198764d5d6c5903157c521af496479d06dc26032d718Anders Carlsson void EmitObjCAtThrowStmt(const ObjCAtThrowStmt &S); 198810cac6f7115b59a466bb8d2d51cdddeb38aadc37Chris Lattner void EmitObjCAtSynchronizedStmt(const ObjCAtSynchronizedStmt &S); 1989f85e193739c953358c865005855253af4f68a497John McCall void EmitObjCAutoreleasePoolStmt(const ObjCAutoreleasePoolStmt &S); 19900dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 199159a7000a79118e4c140885ccbb2ac6a686a73092John McCall void EnterCXXTryStmt(const CXXTryStmt &S, bool IsFnTryBlock = false); 199259a7000a79118e4c140885ccbb2ac6a686a73092John McCall void ExitCXXTryStmt(const CXXTryStmt &S, bool IsFnTryBlock = false); 19939fc6a7774643a810c8501dae2323e863fefb623eJohn McCall 19946815e941998659a55c20c147861b0f437928c3d8Anders Carlsson void EmitCXXTryStmt(const CXXTryStmt &S); 199598592d9c4dff79480fdc25b83988de03f912b647Reid Kleckner void EmitSEHTryStmt(const SEHTryStmt &S); 1996c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines void EmitSEHLeaveStmt(const SEHLeaveStmt &S); 19970e2c34f92f00628d48968dfea096d36381f494cbStephen Hines void EnterSEHTryStmt(const SEHTryStmt &S, SEHFinallyInfo &FI); 19980e2c34f92f00628d48968dfea096d36381f494cbStephen Hines void ExitSEHTryStmt(const SEHTryStmt &S, SEHFinallyInfo &FI); 19990e2c34f92f00628d48968dfea096d36381f494cbStephen Hines 20000e2c34f92f00628d48968dfea096d36381f494cbStephen Hines llvm::Function *GenerateSEHFilterFunction(CodeGenFunction &ParentCGF, 20010e2c34f92f00628d48968dfea096d36381f494cbStephen Hines const SEHExceptStmt &Except); 20020e2c34f92f00628d48968dfea096d36381f494cbStephen Hines 20030e2c34f92f00628d48968dfea096d36381f494cbStephen Hines void EmitSEHExceptionCodeSave(); 20040e2c34f92f00628d48968dfea096d36381f494cbStephen Hines llvm::Value *EmitSEHExceptionCode(); 20050e2c34f92f00628d48968dfea096d36381f494cbStephen Hines llvm::Value *EmitSEHExceptionInfo(); 20060e2c34f92f00628d48968dfea096d36381f494cbStephen Hines llvm::Value *EmitSEHAbnormalTermination(); 20070e2c34f92f00628d48968dfea096d36381f494cbStephen Hines 2008c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines void EmitCXXForRangeStmt(const CXXForRangeStmt &S, 2009176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines ArrayRef<const Attr *> Attrs = None); 20109cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 2011176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines LValue InitCapturedStruct(const CapturedStmt &S); 2012524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir llvm::Function *EmitCapturedStmt(const CapturedStmt &S, CapturedRegionKind K); 2013176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines void GenerateCapturedStmtFunctionProlog(const CapturedStmt &S); 2014176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines llvm::Function *GenerateCapturedStmtFunctionEpilog(const CapturedStmt &S); 2015c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines llvm::Function *GenerateCapturedStmtFunction(const CapturedStmt &S); 20166bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines llvm::Value *GenerateCapturedStmtArgument(const CapturedStmt &S); 2017176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines void EmitOMPAggregateAssign(LValue OriginalAddr, llvm::Value *PrivateAddr, 2018176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines const Expr *AssignExpr, QualType Type, 2019176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines const VarDecl *VDInit); 2020176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines void EmitOMPFirstprivateClause(const OMPExecutableDirective &D, 2021176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines OMPPrivateScope &PrivateScope); 2022176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines void EmitOMPPrivateClause(const OMPExecutableDirective &D, 2023176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines OMPPrivateScope &PrivateScope); 20246bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines 20256bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines void EmitOMPParallelDirective(const OMPParallelDirective &S); 20266bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines void EmitOMPSimdDirective(const OMPSimdDirective &S); 2027c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines void EmitOMPForDirective(const OMPForDirective &S); 2028176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines void EmitOMPForSimdDirective(const OMPForSimdDirective &S); 2029c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines void EmitOMPSectionsDirective(const OMPSectionsDirective &S); 2030c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines void EmitOMPSectionDirective(const OMPSectionDirective &S); 2031c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines void EmitOMPSingleDirective(const OMPSingleDirective &S); 2032176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines void EmitOMPMasterDirective(const OMPMasterDirective &S); 2033176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines void EmitOMPCriticalDirective(const OMPCriticalDirective &S); 2034c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines void EmitOMPParallelForDirective(const OMPParallelForDirective &S); 2035176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines void EmitOMPParallelForSimdDirective(const OMPParallelForSimdDirective &S); 2036c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines void EmitOMPParallelSectionsDirective(const OMPParallelSectionsDirective &S); 2037176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines void EmitOMPTaskDirective(const OMPTaskDirective &S); 2038176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines void EmitOMPTaskyieldDirective(const OMPTaskyieldDirective &S); 2039176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines void EmitOMPBarrierDirective(const OMPBarrierDirective &S); 2040176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines void EmitOMPTaskwaitDirective(const OMPTaskwaitDirective &S); 2041176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines void EmitOMPFlushDirective(const OMPFlushDirective &S); 2042176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines void EmitOMPOrderedDirective(const OMPOrderedDirective &S); 2043176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines void EmitOMPAtomicDirective(const OMPAtomicDirective &S); 2044176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines void EmitOMPTargetDirective(const OMPTargetDirective &S); 2045176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines void EmitOMPTeamsDirective(const OMPTeamsDirective &S); 2046176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines 20470e2c34f92f00628d48968dfea096d36381f494cbStephen Hinesprivate: 20480e2c34f92f00628d48968dfea096d36381f494cbStephen Hines 20490e2c34f92f00628d48968dfea096d36381f494cbStephen Hines /// Helpers for the OpenMP loop directives. 2050176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines void EmitOMPLoopBody(const OMPLoopDirective &Directive, 2051176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines bool SeparateIter = false); 20523ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar void EmitOMPInnerLoop(const Stmt &S, bool RequiresCleanup, 20533ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar const Expr *LoopCond, const Expr *IncExpr, 20543ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar const std::function<void()> &BodyGen); 2055176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines void EmitOMPSimdFinal(const OMPLoopDirective &S); 20560e2c34f92f00628d48968dfea096d36381f494cbStephen Hines void EmitOMPWorksharingLoop(const OMPLoopDirective &S); 20570e2c34f92f00628d48968dfea096d36381f494cbStephen Hines void EmitOMPForOuterLoop(OpenMPScheduleClauseKind ScheduleKind, 20580e2c34f92f00628d48968dfea096d36381f494cbStephen Hines const OMPLoopDirective &S, 20590e2c34f92f00628d48968dfea096d36381f494cbStephen Hines OMPPrivateScope &LoopScope, llvm::Value *LB, 20600e2c34f92f00628d48968dfea096d36381f494cbStephen Hines llvm::Value *UB, llvm::Value *ST, llvm::Value *IL, 20610e2c34f92f00628d48968dfea096d36381f494cbStephen Hines llvm::Value *Chunk); 20620e2c34f92f00628d48968dfea096d36381f494cbStephen Hines 20630e2c34f92f00628d48968dfea096d36381f494cbStephen Hinespublic: 2064524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir 20655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 20665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // LValue Expression Emission 20675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 20685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 206913e81737a433b23f8c662d10d1d57356122a8caaDaniel Dunbar /// GetUndefRValue - Get an appropriate 'undef' rvalue for the given type. 207013e81737a433b23f8c662d10d1d57356122a8caaDaniel Dunbar RValue GetUndefRValue(QualType Ty); 207113e81737a433b23f8c662d10d1d57356122a8caaDaniel Dunbar 2072ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar /// EmitUnsupportedRValue - Emit a dummy r-value using the type of E 2073ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar /// and issue an ErrorUnsupported style diagnostic (using the 2074ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar /// provided Name). 2075ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar RValue EmitUnsupportedRValue(const Expr *E, 2076ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar const char *Name); 2077ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar 20780dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitUnsupportedLValue - Emit a dummy l-value using the type of E and issue 20790dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// an ErrorUnsupported style diagnostic (using the provided Name). 20806ba82a4a4b295e54cf192c3e98b28f39990c6194Daniel Dunbar LValue EmitUnsupportedLValue(const Expr *E, 20816ba82a4a4b295e54cf192c3e98b28f39990c6194Daniel Dunbar const char *Name); 20826ba82a4a4b295e54cf192c3e98b28f39990c6194Daniel Dunbar 20835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EmitLValue - Emit code to compute a designator that specifies the location 20845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// of the expression. 20855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 20865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// This can return one of two things: a simple address or a bitfield 20875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// reference. In either case, the LLVM Value* in the LValue structure is 20885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// guaranteed to be an LLVM pointer type. 20895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 20905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// If this returns a bitfield reference, nothing about the pointee type of 20915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// the LLVM value is known: For example, it may not be a pointer to an 20925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// integer. 20935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 20945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// If this returns a normal address, and if the lvalue's C type is fixed 20955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// size, this method guarantees that the returned pointer type will point to 20965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// an LLVM type of the same size of the lvalue's type. If the lvalue has a 20975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// variable length type, this is not possible. 20985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 20995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitLValue(const Expr *E); 21000dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 21017ac9ef1c82c779a5348ed11b3d10e01c58803b35Richard Smith /// \brief Same as EmitLValue but additionally we generate checking code to 21027ac9ef1c82c779a5348ed11b3d10e01c58803b35Richard Smith /// guard against undefined behavior. This is only suitable when we know 21037ac9ef1c82c779a5348ed11b3d10e01c58803b35Richard Smith /// that the address will be used to access the object. 21047ac9ef1c82c779a5348ed11b3d10e01c58803b35Richard Smith LValue EmitCheckedLValue(const Expr *E, TypeCheckKind TCK); 2105b14e62d5aee7522b98c410ee65bd750c2cfe6f01Mike Stump 21064ee7dc2369c1f0257a73b2e83a7d38fdebdd9176Nick Lewycky RValue convertTempToRValue(llvm::Value *addr, QualType type, 21074ee7dc2369c1f0257a73b2e83a7d38fdebdd9176Nick Lewycky SourceLocation Loc); 21089d232c884ea9872d6555df0fd7359699819bc1f1John McCall 21099eda3abe7e183b05834947391c0cdc291f4ee0d8John McCall void EmitAtomicInit(Expr *E, LValue lvalue); 21109eda3abe7e183b05834947391c0cdc291f4ee0d8John McCall 21110e2c34f92f00628d48968dfea096d36381f494cbStephen Hines bool LValueIsSuitableForInlineAtomic(LValue Src); 21120e2c34f92f00628d48968dfea096d36381f494cbStephen Hines bool typeIsSuitableForInlineAtomic(QualType Ty, bool IsVolatile) const; 21130e2c34f92f00628d48968dfea096d36381f494cbStephen Hines 21140e2c34f92f00628d48968dfea096d36381f494cbStephen Hines RValue EmitAtomicLoad(LValue LV, SourceLocation SL, 21150e2c34f92f00628d48968dfea096d36381f494cbStephen Hines AggValueSlot Slot = AggValueSlot::ignored()); 21160e2c34f92f00628d48968dfea096d36381f494cbStephen Hines 21174ee7dc2369c1f0257a73b2e83a7d38fdebdd9176Nick Lewycky RValue EmitAtomicLoad(LValue lvalue, SourceLocation loc, 21180e2c34f92f00628d48968dfea096d36381f494cbStephen Hines llvm::AtomicOrdering AO, bool IsVolatile = false, 21199eda3abe7e183b05834947391c0cdc291f4ee0d8John McCall AggValueSlot slot = AggValueSlot::ignored()); 21209eda3abe7e183b05834947391c0cdc291f4ee0d8John McCall 21219eda3abe7e183b05834947391c0cdc291f4ee0d8John McCall void EmitAtomicStore(RValue rvalue, LValue lvalue, bool isInit); 21229eda3abe7e183b05834947391c0cdc291f4ee0d8John McCall 21230e2c34f92f00628d48968dfea096d36381f494cbStephen Hines void EmitAtomicStore(RValue rvalue, LValue lvalue, llvm::AtomicOrdering AO, 21240e2c34f92f00628d48968dfea096d36381f494cbStephen Hines bool IsVolatile, bool isInit); 21250e2c34f92f00628d48968dfea096d36381f494cbStephen Hines 21260e2c34f92f00628d48968dfea096d36381f494cbStephen Hines std::pair<RValue, RValue> EmitAtomicCompareExchange( 21270e2c34f92f00628d48968dfea096d36381f494cbStephen Hines LValue Obj, RValue Expected, RValue Desired, SourceLocation Loc, 21280e2c34f92f00628d48968dfea096d36381f494cbStephen Hines llvm::AtomicOrdering Success = llvm::SequentiallyConsistent, 21290e2c34f92f00628d48968dfea096d36381f494cbStephen Hines llvm::AtomicOrdering Failure = llvm::SequentiallyConsistent, 21300e2c34f92f00628d48968dfea096d36381f494cbStephen Hines bool IsWeak = false, AggValueSlot Slot = AggValueSlot::ignored()); 21310e2c34f92f00628d48968dfea096d36381f494cbStephen Hines 213226815d97c5743481e317f17a8d53a6819d061862John McCall /// EmitToMemory - Change a scalar value from its value 213326815d97c5743481e317f17a8d53a6819d061862John McCall /// representation to its in-memory representation. 213426815d97c5743481e317f17a8d53a6819d061862John McCall llvm::Value *EmitToMemory(llvm::Value *Value, QualType Ty); 213526815d97c5743481e317f17a8d53a6819d061862John McCall 213626815d97c5743481e317f17a8d53a6819d061862John McCall /// EmitFromMemory - Change a scalar value from its memory 213726815d97c5743481e317f17a8d53a6819d061862John McCall /// representation to its value representation. 213826815d97c5743481e317f17a8d53a6819d061862John McCall llvm::Value *EmitFromMemory(llvm::Value *Value, QualType Ty); 213926815d97c5743481e317f17a8d53a6819d061862John McCall 21409d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// EmitLoadOfScalar - Load a scalar value from an address, taking 21419d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// care to appropriately convert from the memory representation to 21429d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// the LLVM value representation. 214309429b962811f2c0a7a81a1b0a89f96f5878b20cMike Stump llvm::Value *EmitLoadOfScalar(llvm::Value *Addr, bool Volatile, 21443d5aff5d3036b0ff09d114857cd2276134b3d8c9Dan Gohman unsigned Alignment, QualType Ty, 21454ee7dc2369c1f0257a73b2e83a7d38fdebdd9176Nick Lewycky SourceLocation Loc, 21466bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines llvm::MDNode *TBAAInfo = nullptr, 2147b37a73d5c6a0c8bb1f6e363d3b53980e4fa0ceadManman Ren QualType TBAABaseTy = QualType(), 2148b37a73d5c6a0c8bb1f6e363d3b53980e4fa0ceadManman Ren uint64_t TBAAOffset = 0); 2149545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall 2150545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall /// EmitLoadOfScalar - Load a scalar value from an address, taking 2151545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall /// care to appropriately convert from the memory representation to 2152545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall /// the LLVM value representation. The l-value must be a simple 2153545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall /// l-value. 21544ee7dc2369c1f0257a73b2e83a7d38fdebdd9176Nick Lewycky llvm::Value *EmitLoadOfScalar(LValue lvalue, SourceLocation Loc); 21559d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar 21569d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// EmitStoreOfScalar - Store a scalar value to an address, taking 21579d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// care to appropriately convert from the memory representation to 21589d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// the LLVM value representation. 215909429b962811f2c0a7a81a1b0a89f96f5878b20cMike Stump void EmitStoreOfScalar(llvm::Value *Value, llvm::Value *Addr, 21603d5aff5d3036b0ff09d114857cd2276134b3d8c9Dan Gohman bool Volatile, unsigned Alignment, QualType Ty, 21616bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines llvm::MDNode *TBAAInfo = nullptr, bool isInit = false, 2162b37a73d5c6a0c8bb1f6e363d3b53980e4fa0ceadManman Ren QualType TBAABaseTy = QualType(), 2163b37a73d5c6a0c8bb1f6e363d3b53980e4fa0ceadManman Ren uint64_t TBAAOffset = 0); 2164545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall 2165545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall /// EmitStoreOfScalar - Store a scalar value to an address, taking 2166545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall /// care to appropriately convert from the memory representation to 2167545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall /// the LLVM value representation. The l-value must be a simple 21687a7ee3033e44b45630981355460ef89efa0bdcc4David Chisnall /// l-value. The isInit flag indicates whether this is an initialization. 21697a7ee3033e44b45630981355460ef89efa0bdcc4David Chisnall /// If so, atomic qualifiers are ignored and the store is always non-atomic. 21707a7ee3033e44b45630981355460ef89efa0bdcc4David Chisnall void EmitStoreOfScalar(llvm::Value *value, LValue lvalue, bool isInit=false); 21719d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar 21725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EmitLoadOfLValue - Given an expression that represents a value lvalue, 21735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// this method emits the address of the lvalue, then loads the result as an 21745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// rvalue, returning the rvalue. 21754ee7dc2369c1f0257a73b2e83a7d38fdebdd9176Nick Lewycky RValue EmitLoadOfLValue(LValue V, SourceLocation Loc); 2176545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall RValue EmitLoadOfExtVectorElementLValue(LValue V); 2177545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall RValue EmitLoadOfBitfieldLValue(LValue LV); 21786bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines RValue EmitLoadOfGlobalRegLValue(LValue LV); 21790dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 21805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EmitStoreThroughLValue - Store the specified rvalue into the specified 21815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// lvalue, where both are guaranteed to the have the same type, and that type 21825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// is 'Ty'. 21830e2c34f92f00628d48968dfea096d36381f494cbStephen Hines void EmitStoreThroughLValue(RValue Src, LValue Dst, bool isInit = false); 2184545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall void EmitStoreThroughExtVectorComponentLValue(RValue Src, LValue Dst); 21856bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines void EmitStoreThroughGlobalRegLValue(RValue Src, LValue Dst); 2186ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar 21874ee7dc2369c1f0257a73b2e83a7d38fdebdd9176Nick Lewycky /// EmitStoreThroughBitfieldLValue - Store Src into Dst with same constraints 21884ee7dc2369c1f0257a73b2e83a7d38fdebdd9176Nick Lewycky /// as EmitStoreThroughLValue. 2189ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar /// 21900dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// \param Result [out] - If non-null, this will be set to a Value* for the 21910dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// bit-field contents after the store, appropriate for use as the result of 21920dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// an assignment to the bit-field. 2193545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall void EmitStoreThroughBitfieldLValue(RValue Src, LValue Dst, 21946bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines llvm::Value **Result=nullptr); 21950dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 219683ce9d4a552987d34cbd500e983db8d770232379John McCall /// Emit an l-value for an assignment (simple or compound) of complex type. 219783ce9d4a552987d34cbd500e983db8d770232379John McCall LValue EmitComplexAssignmentLValue(const BinaryOperator *E); 21982a41637a995affa1563f4d82a8b026e326a2faa0John McCall LValue EmitComplexCompoundAssignmentLValue(const CompoundAssignOperator *E); 21990e2c34f92f00628d48968dfea096d36381f494cbStephen Hines LValue EmitScalarCompoundAssignWithComplex(const CompoundAssignOperator *E, 22000e2c34f92f00628d48968dfea096d36381f494cbStephen Hines llvm::Value *&Result); 220183ce9d4a552987d34cbd500e983db8d770232379John McCall 2202fc8f0e14ad142ed811e90fbd9a30e419e301c717Chris Lattner // Note: only available for agg return types 220380e62c29fe21cd06c93eba6e72b7e32dca06fcf9Daniel Dunbar LValue EmitBinaryOperatorLValue(const BinaryOperator *E); 22042a41637a995affa1563f4d82a8b026e326a2faa0John McCall LValue EmitCompoundAssignmentLValue(const CompoundAssignOperator *E); 22055b5c9ef865607e179413462dcd71bcebb5b7daaeDaniel Dunbar // Note: only available for agg return types 220622c940ee588a420cd2e6c8f68be2ac3cc80061ffChristopher Lamb LValue EmitCallExprLValue(const CallExpr *E); 22075b5c9ef865607e179413462dcd71bcebb5b7daaeDaniel Dunbar // Note: only available for agg return types 22085b5c9ef865607e179413462dcd71bcebb5b7daaeDaniel Dunbar LValue EmitVAArgExprLValue(const VAArgExpr *E); 22095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitDeclRefLValue(const DeclRefExpr *E); 22106bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines LValue EmitReadRegister(const VarDecl *VD); 22115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitStringLiteralLValue(const StringLiteral *E); 2212eaf2bb89eb2aad3b80673de30febe52df43c10ecChris Lattner LValue EmitObjCEncodeExprLValue(const ObjCEncodeExpr *E); 2213d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner LValue EmitPredefinedLValue(const PredefinedExpr *E); 22145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitUnaryOpLValue(const UnaryOperator *E); 2215a0a628f839cf50844cc0f226bd9cb72485f98f91Richard Smith LValue EmitArraySubscriptExpr(const ArraySubscriptExpr *E, 2216a0a628f839cf50844cc0f226bd9cb72485f98f91Richard Smith bool Accessed = false); 2217213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman LValue EmitExtVectorElementExpr(const ExtVectorElementExpr *E); 2218b84a06e68ffd71da22e3c75b6e4bbdba37816413Devang Patel LValue EmitMemberExpr(const MemberExpr *E); 2219820bca41c3899374775d2a1dfc2ef2e22aaf1c7bFariborz Jahanian LValue EmitObjCIsaExpr(const ObjCIsaExpr *E); 222006e863f2902b8ba55b056308875c19f7ba3dab25Eli Friedman LValue EmitCompoundLiteralLValue(const CompoundLiteralExpr *E); 222113ec9100ca6bc03b5ce8832e4a0fcb724d47bcb1Richard Smith LValue EmitInitListLValue(const InitListExpr *E); 222256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall LValue EmitConditionalOperatorLValue(const AbstractConditionalOperator *E); 222375dfedaf702822c9e51a4f3c5d3ecf2d2ad99272Chris Lattner LValue EmitCastLValue(const CastExpr *E); 222403e80030515c800d1ab44125b9052dfffd1bd04cDouglas Gregor LValue EmitMaterializeTemporaryExpr(const MaterializeTemporaryExpr *E); 2225e996ffd240f20a1048179d7727a6ee3227261921John McCall LValue EmitOpaqueValueLValue(const OpaqueValueExpr *e); 2226176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines 2227176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines llvm::Value *EmitExtVectorElementLValue(LValue V); 22289cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 22294ee7dc2369c1f0257a73b2e83a7d38fdebdd9176Nick Lewycky RValue EmitRValueForField(LValue LV, const FieldDecl *FD, SourceLocation Loc); 2230eaf856db5d1a272dc7188937206ef4572836f82aAnton Korobeynikov 2231dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall class ConstantEmission { 2232dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall llvm::PointerIntPair<llvm::Constant*, 1, bool> ValueAndIsReference; 2233dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall ConstantEmission(llvm::Constant *C, bool isReference) 2234dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall : ValueAndIsReference(C, isReference) {} 2235dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall public: 2236dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall ConstantEmission() {} 2237dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall static ConstantEmission forReference(llvm::Constant *C) { 2238dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall return ConstantEmission(C, true); 2239dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall } 2240dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall static ConstantEmission forValue(llvm::Constant *C) { 2241dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall return ConstantEmission(C, false); 2242dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall } 2243dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall 22440e2c34f92f00628d48968dfea096d36381f494cbStephen Hines explicit operator bool() const { 22456bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines return ValueAndIsReference.getOpaqueValue() != nullptr; 22466bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines } 2247dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall 2248dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall bool isReference() const { return ValueAndIsReference.getInt(); } 2249dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall LValue getReferenceLValue(CodeGenFunction &CGF, Expr *refExpr) const { 2250dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall assert(isReference()); 2251dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall return CGF.MakeNaturalAlignAddrLValue(ValueAndIsReference.getPointer(), 2252dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall refExpr->getType()); 2253dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall } 2254dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall 2255dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall llvm::Constant *getValue() const { 2256dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall assert(!isReference()); 2257dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall return ValueAndIsReference.getPointer(); 2258dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall } 2259dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall }; 2260dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall 2261f4b88a45902af1802a1cb42ba48b1c474474f228John McCall ConstantEmission tryEmitAsConstant(DeclRefExpr *refExpr); 2262dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall 22634b9c2d235fb9449e249d74f48ecfec601650de93John McCall RValue EmitPseudoObjectRValue(const PseudoObjectExpr *e, 22644b9c2d235fb9449e249d74f48ecfec601650de93John McCall AggValueSlot slot = AggValueSlot::ignored()); 22654b9c2d235fb9449e249d74f48ecfec601650de93John McCall LValue EmitPseudoObjectLValue(const PseudoObjectExpr *e); 22664b9c2d235fb9449e249d74f48ecfec601650de93John McCall 22672a03192a02dbf4fdff438d1e658356bde871aba4Daniel Dunbar llvm::Value *EmitIvarOffset(const ObjCInterfaceDecl *Interface, 226829e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar const ObjCIvarDecl *Ivar); 2269377ecc7996dce6803f7b7b6208cab5e197c9c5b8Eli Friedman LValue EmitLValueForField(LValue Base, const FieldDecl* Field); 2270f5ebf9bf1df10ac15ba32a4b24dfe171b7848c58John McCall LValue EmitLValueForLambdaField(const FieldDecl *Field); 22719cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 227206a2970e9480c6d02b367b2f970baff29b9f9721Anders Carlsson /// EmitLValueForFieldInitialization - Like EmitLValueForField, except that 227306a2970e9480c6d02b367b2f970baff29b9f9721Anders Carlsson /// if the Field is a reference, this will return the address of the reference 227406a2970e9480c6d02b367b2f970baff29b9f9721Anders Carlsson /// and not the address of the value stored in the reference. 2275377ecc7996dce6803f7b7b6208cab5e197c9c5b8Eli Friedman LValue EmitLValueForFieldInitialization(LValue Base, 2276377ecc7996dce6803f7b7b6208cab5e197c9c5b8Eli Friedman const FieldDecl* Field); 22779cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 227845012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian LValue EmitLValueForIvar(QualType ObjectTy, 227945012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian llvm::Value* Base, const ObjCIvarDecl *Ivar, 228029e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar unsigned CVRQualifiers); 2281fd64bb635dc221baa19f81d5d2a084f7eb269f7fFariborz Jahanian 2282b58d017f2b9eeed33f2ab3ede968b89cf5296bf2Anders Carlsson LValue EmitCXXConstructLValue(const CXXConstructExpr *E); 2283e61c9e80a108b5db7e5f0e702f0e455d737c6390Anders Carlsson LValue EmitCXXBindTemporaryLValue(const CXXBindTemporaryExpr *E); 228431a3702618ab49578542cffee20ba0c8859b9d1eEli Friedman LValue EmitLambdaLValue(const LambdaExpr *E); 2285c2e84ae9a6d25cea3e583c768e576b4c981ec028Mike Stump LValue EmitCXXTypeidLValue(const CXXTypeidExpr *E); 2286c5f804636e367ef744fd24cf88f7c956a5af0434Nico Weber LValue EmitCXXUuidofLValue(const CXXUuidofExpr *E); 22879cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 22880a04d77bde7e3a661c2b41b60630d125d09ed6efDaniel Dunbar LValue EmitObjCMessageExprLValue(const ObjCMessageExpr *E); 2289391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner LValue EmitObjCIvarRefLValue(const ObjCIvarRefExpr *E); 2290654599454c8e6cc83b1b9b3af43c49c2f66a26cbChris Lattner LValue EmitStmtExprLValue(const StmtExpr *E); 22918bfd31f9dad09cd52225d868bbd92a9bebe87775Fariborz Jahanian LValue EmitPointerToDataMemberBinaryExpr(const BinaryOperator *E); 229203b2960c14aede6ac82bdef32247094ebb72fa69Fariborz Jahanian LValue EmitObjCSelectorLValue(const ObjCSelectorExpr *E); 22933b8e0b7f96164e8c49d2a833da26edd960f5da1fYunzhong Gao void EmitDeclRefExprDbgValue(const DeclRefExpr *E, llvm::Constant *Init); 229456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 22955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 2296883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner // Scalar Expression Emission 22975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 22985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 22990dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitCall - Generate a call of the given function, expecting the given 23000dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// result type, and using the given argument list which specifies both the 23010dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// LLVM arguments and the types they were derived from. 2302c0ef9f59937c3971c48b6fed37cf5bd8985c024bDaniel Dunbar /// 2303f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// \param TargetDecl - If given, the decl of the function in a direct call; 2304f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// used to set attributes on the call (noreturn, etc.). 230588b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar RValue EmitCall(const CGFunctionInfo &FnInfo, 230688b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar llvm::Value *Callee, 2307f3c47c9525153aea2de0ec4bd615b9cf2d81c103Anders Carlsson ReturnValueSlot ReturnValue, 2308c0ef9f59937c3971c48b6fed37cf5bd8985c024bDaniel Dunbar const CallArgList &Args, 23096bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines const Decl *TargetDecl = nullptr, 23106bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines llvm::Instruction **callOrInvoke = nullptr); 23111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2312176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines RValue EmitCall(QualType FnType, llvm::Value *Callee, const CallExpr *E, 2313d2490a91341b57df7a7e54f8a707e7ecde2eeb4eAnders Carlsson ReturnValueSlot ReturnValue, 23140e2c34f92f00628d48968dfea096d36381f494cbStephen Hines const Decl *TargetDecl = nullptr, 23150e2c34f92f00628d48968dfea096d36381f494cbStephen Hines llvm::Value *Chain = nullptr); 23169cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer RValue EmitCallExpr(const CallExpr *E, 2317d2490a91341b57df7a7e54f8a707e7ecde2eeb4eAnders Carlsson ReturnValueSlot ReturnValue = ReturnValueSlot()); 23181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2319bd7370a78604e9a20d698bfe328c1e43f12a0613John McCall llvm::CallInst *EmitRuntimeCall(llvm::Value *callee, 2320bd7370a78604e9a20d698bfe328c1e43f12a0613John McCall const Twine &name = ""); 2321bd7370a78604e9a20d698bfe328c1e43f12a0613John McCall llvm::CallInst *EmitRuntimeCall(llvm::Value *callee, 2322bd7370a78604e9a20d698bfe328c1e43f12a0613John McCall ArrayRef<llvm::Value*> args, 2323bd7370a78604e9a20d698bfe328c1e43f12a0613John McCall const Twine &name = ""); 2324bd7370a78604e9a20d698bfe328c1e43f12a0613John McCall llvm::CallInst *EmitNounwindRuntimeCall(llvm::Value *callee, 2325bd7370a78604e9a20d698bfe328c1e43f12a0613John McCall const Twine &name = ""); 2326bd7370a78604e9a20d698bfe328c1e43f12a0613John McCall llvm::CallInst *EmitNounwindRuntimeCall(llvm::Value *callee, 2327bd7370a78604e9a20d698bfe328c1e43f12a0613John McCall ArrayRef<llvm::Value*> args, 2328bd7370a78604e9a20d698bfe328c1e43f12a0613John McCall const Twine &name = ""); 2329bd7370a78604e9a20d698bfe328c1e43f12a0613John McCall 2330f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::CallSite EmitCallOrInvoke(llvm::Value *Callee, 23312d3ba4f5a923a90c3fc290ddfba5e36c2d0a9b46Chris Lattner ArrayRef<llvm::Value *> Args, 23328cc488fefb2fb04bc8d5398da29f0182f97934cfChris Lattner const Twine &Name = ""); 23334c7d9f1507d0f102bd4133bba63348636facd469Jay Foad llvm::CallSite EmitCallOrInvoke(llvm::Value *Callee, 23348cc488fefb2fb04bc8d5398da29f0182f97934cfChris Lattner const Twine &Name = ""); 2335bd7370a78604e9a20d698bfe328c1e43f12a0613John McCall llvm::CallSite EmitRuntimeCallOrInvoke(llvm::Value *callee, 2336bd7370a78604e9a20d698bfe328c1e43f12a0613John McCall ArrayRef<llvm::Value*> args, 2337bd7370a78604e9a20d698bfe328c1e43f12a0613John McCall const Twine &name = ""); 2338bd7370a78604e9a20d698bfe328c1e43f12a0613John McCall llvm::CallSite EmitRuntimeCallOrInvoke(llvm::Value *callee, 2339bd7370a78604e9a20d698bfe328c1e43f12a0613John McCall const Twine &name = ""); 2340bd7370a78604e9a20d698bfe328c1e43f12a0613John McCall void EmitNoreturnRuntimeCallOrInvoke(llvm::Value *callee, 2341bd7370a78604e9a20d698bfe328c1e43f12a0613John McCall ArrayRef<llvm::Value*> args); 2342f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 23432726267f094a0c1f5ac5b501ec5a9898c58876bfFariborz Jahanian llvm::Value *BuildAppleKextVirtualCall(const CXXMethodDecl *MD, 23442726267f094a0c1f5ac5b501ec5a9898c58876bfFariborz Jahanian NestedNameSpecifier *Qual, 23452acc6e3feda5e4f7d9009bdcf8b1cd777fecfe2dChris Lattner llvm::Type *Ty); 2346ccd5259d33cbbdd6f5fbf7ccab4cb4a2702309eaFariborz Jahanian 2347ccd5259d33cbbdd6f5fbf7ccab4cb4a2702309eaFariborz Jahanian llvm::Value *BuildAppleKextVirtualDestructorCall(const CXXDestructorDecl *DD, 2348ccd5259d33cbbdd6f5fbf7ccab4cb4a2702309eaFariborz Jahanian CXXDtorType Type, 2349771c678c04f5f685b4f188ec6c2fd88ad0f7457fFariborz Jahanian const CXXRecordDecl *RD); 2350566abee1e9828a7700b51e4d17ea08234fde3bb4Anders Carlsson 2351176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines RValue 2352176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines EmitCXXMemberOrOperatorCall(const CXXMethodDecl *MD, llvm::Value *Callee, 2353176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines ReturnValueSlot ReturnValue, llvm::Value *This, 2354176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines llvm::Value *ImplicitParam, 2355176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines QualType ImplicitParamTy, const CallExpr *E); 2356176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines RValue EmitCXXStructorCall(const CXXMethodDecl *MD, llvm::Value *Callee, 2357176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines ReturnValueSlot ReturnValue, llvm::Value *This, 2358176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines llvm::Value *ImplicitParam, 2359176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines QualType ImplicitParamTy, const CallExpr *E, 2360176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines StructorType Type); 2361a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson RValue EmitCXXMemberCallExpr(const CXXMemberCallExpr *E, 2362a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson ReturnValueSlot ReturnValue); 23630e2c34f92f00628d48968dfea096d36381f494cbStephen Hines RValue EmitCXXMemberOrOperatorMemberCallExpr(const CallExpr *CE, 23640e2c34f92f00628d48968dfea096d36381f494cbStephen Hines const CXXMethodDecl *MD, 23650e2c34f92f00628d48968dfea096d36381f494cbStephen Hines ReturnValueSlot ReturnValue, 23660e2c34f92f00628d48968dfea096d36381f494cbStephen Hines bool HasQualifier, 23670e2c34f92f00628d48968dfea096d36381f494cbStephen Hines NestedNameSpecifier *Qualifier, 23680e2c34f92f00628d48968dfea096d36381f494cbStephen Hines bool IsArrow, const Expr *Base); 23690e2c34f92f00628d48968dfea096d36381f494cbStephen Hines // Compute the object pointer. 2370a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson RValue EmitCXXMemberPointerCallExpr(const CXXMemberCallExpr *E, 2371a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson ReturnValueSlot ReturnValue); 23725549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek 23730f294632f36459174199b77699e339715244b5abAnders Carlsson RValue EmitCXXOperatorMemberCallExpr(const CXXOperatorCallExpr *E, 2374a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson const CXXMethodDecl *MD, 2375a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson ReturnValueSlot ReturnValue); 23761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23776c0aa5ff6e6253db0f993053599e2a52b5b93b2dPeter Collingbourne RValue EmitCUDAKernelCallExpr(const CUDAKernelCallExpr *E, 23786c0aa5ff6e6253db0f993053599e2a52b5b93b2dPeter Collingbourne ReturnValueSlot ReturnValue); 23796c0aa5ff6e6253db0f993053599e2a52b5b93b2dPeter Collingbourne 23809cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 23811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump RValue EmitBuiltinExpr(const FunctionDecl *FD, 23820e2c34f92f00628d48968dfea096d36381f494cbStephen Hines unsigned BuiltinID, const CallExpr *E, 23830e2c34f92f00628d48968dfea096d36381f494cbStephen Hines ReturnValueSlot ReturnValue); 23845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2385a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson RValue EmitBlockCallExpr(const CallExpr *E, ReturnValueSlot ReturnValue); 238609429b962811f2c0a7a81a1b0a89f96f5878b20cMike Stump 23870dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitTargetBuiltinExpr - Emit the given builtin call. Returns 0 if the call 23880dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// is unhandled by the current target. 2389f02e9ddf5efc75917af712b3c7f909581205f0a5Daniel Dunbar llvm::Value *EmitTargetBuiltinExpr(unsigned BuiltinID, const CallExpr *E); 2390f02e9ddf5efc75917af712b3c7f909581205f0a5Daniel Dunbar 23918137a607eebe799d95fd05226fb91119a5b054b0Kevin Qin llvm::Value *EmitAArch64CompareBuiltinExpr(llvm::Value *Op, llvm::Type *Ty, 23928137a607eebe799d95fd05226fb91119a5b054b0Kevin Qin const llvm::CmpInst::Predicate Fp, 23938137a607eebe799d95fd05226fb91119a5b054b0Kevin Qin const llvm::CmpInst::Predicate Ip, 23948137a607eebe799d95fd05226fb91119a5b054b0Kevin Qin const llvm::Twine &Name = ""); 23952752c0137d95aa2f4ee1cdff4b564bac842e041bChris Lattner llvm::Value *EmitARMBuiltinExpr(unsigned BuiltinID, const CallExpr *E); 2396651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 2397651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines llvm::Value *EmitCommonNeonBuiltinExpr(unsigned BuiltinID, 2398651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines unsigned LLVMIntrinsic, 2399651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines unsigned AltLLVMIntrinsic, 2400651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines const char *NameHint, 2401651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines unsigned Modifier, 2402651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines const CallExpr *E, 2403651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines SmallVectorImpl<llvm::Value *> &Ops, 24046bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines llvm::Value *Align = nullptr); 2405651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines llvm::Function *LookupNeonLLVMIntrinsic(unsigned IntrinsicID, 2406651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines unsigned Modifier, llvm::Type *ArgTy, 2407651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines const CallExpr *E); 24089cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer llvm::Value *EmitNeonCall(llvm::Function *F, 2409686775deca8b8685eb90801495880e3abdd844c2Chris Lattner SmallVectorImpl<llvm::Value*> &O, 2410db3d4d036037f379f12643e067b229862d61e932Bob Wilson const char *name, 241161eecf5aea018ea65c9ab0bccacd2996b15c632dNate Begeman unsigned shift = 0, bool rightshift = false); 2412cf55652cf668c1402eee0b12edd2e5a1bc34d7a1Bob Wilson llvm::Value *EmitNeonSplat(llvm::Value *V, llvm::Constant *Idx); 24132acc6e3feda5e4f7d9009bdcf8b1cd777fecfe2dChris Lattner llvm::Value *EmitNeonShiftVector(llvm::Value *V, llvm::Type *Ty, 241461eecf5aea018ea65c9ab0bccacd2996b15c632dNate Begeman bool negateForRightShift); 24157f0ff70c391afeb7811b7ddcb06bfbbd5c6cf8f9Amaury de la Vieuville llvm::Value *EmitNeonRShiftImm(llvm::Value *Vec, llvm::Value *Amt, 24167f0ff70c391afeb7811b7ddcb06bfbbd5c6cf8f9Amaury de la Vieuville llvm::Type *Ty, bool usgn, const char *name); 24176bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines // Helper functions for EmitAArch64BuiltinExpr. 2418651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines llvm::Value *vectorWrapScalar8(llvm::Value *Op); 2419651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines llvm::Value *vectorWrapScalar16(llvm::Value *Op); 2420651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines llvm::Value *emitVectorWrappedScalar8Intrinsic( 2421651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines unsigned Int, SmallVectorImpl<llvm::Value *> &Ops, const char *Name); 2422651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines llvm::Value *emitVectorWrappedScalar16Intrinsic( 2423651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines unsigned Int, SmallVectorImpl<llvm::Value *> &Ops, const char *Name); 24246bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines llvm::Value *EmitAArch64BuiltinExpr(unsigned BuiltinID, const CallExpr *E); 2425651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines llvm::Value *EmitNeon64Call(llvm::Function *F, 2426651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines llvm::SmallVectorImpl<llvm::Value *> &O, 2427651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines const char *name); 24289cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 2429795b10062c2eaffae9e04241fb1a73cdbcb24a37Bill Wendling llvm::Value *BuildVector(ArrayRef<llvm::Value*> Ops); 2430564f1de67d7ba43646b8740db86d6269e3dfbe0bAnders Carlsson llvm::Value *EmitX86BuiltinExpr(unsigned BuiltinID, const CallExpr *E); 2431564f1de67d7ba43646b8740db86d6269e3dfbe0bAnders Carlsson llvm::Value *EmitPPCBuiltinExpr(unsigned BuiltinID, const CallExpr *E); 2432c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines llvm::Value *EmitR600BuiltinExpr(unsigned BuiltinID, const CallExpr *E); 24330dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 2434ed7c618f849e2541b1d0288c43154937652c5b15Daniel Dunbar llvm::Value *EmitObjCProtocolExpr(const ObjCProtocolExpr *E); 24357f02f721d48772e4eee4fccd8af4f800be1bbc1eChris Lattner llvm::Value *EmitObjCStringLiteral(const ObjCStringLiteral *E); 2436eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard llvm::Value *EmitObjCBoxedExpr(const ObjCBoxedExpr *E); 2437ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek llvm::Value *EmitObjCArrayLiteral(const ObjCArrayLiteral *E); 2438ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek llvm::Value *EmitObjCDictionaryLiteral(const ObjCDictionaryLiteral *E); 2439ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek llvm::Value *EmitObjCCollectionLiteral(const Expr *E, 2440ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek const ObjCMethodDecl *MethodWithObjects); 24418fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner llvm::Value *EmitObjCSelectorExpr(const ObjCSelectorExpr *E); 2442ef072fd2f3347cfd857d6eb787b245b950771430John McCall RValue EmitObjCMessageExpr(const ObjCMessageExpr *E, 2443ef072fd2f3347cfd857d6eb787b245b950771430John McCall ReturnValueSlot Return = ReturnValueSlot()); 24448fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner 2445f85e193739c953358c865005855253af4f68a497John McCall /// Retrieves the default cleanup kind for an ARC cleanup. 2446f85e193739c953358c865005855253af4f68a497John McCall /// Except under -fobjc-arc-eh, ARC cleanups are normal-only. 2447f85e193739c953358c865005855253af4f68a497John McCall CleanupKind getARCCleanupKind() { 2448f85e193739c953358c865005855253af4f68a497John McCall return CGM.getCodeGenOpts().ObjCAutoRefCountExceptions 2449f85e193739c953358c865005855253af4f68a497John McCall ? NormalAndEHCleanup : NormalCleanup; 2450f85e193739c953358c865005855253af4f68a497John McCall } 2451f85e193739c953358c865005855253af4f68a497John McCall 2452f85e193739c953358c865005855253af4f68a497John McCall // ARC primitives. 2453f85e193739c953358c865005855253af4f68a497John McCall void EmitARCInitWeak(llvm::Value *value, llvm::Value *addr); 2454f85e193739c953358c865005855253af4f68a497John McCall void EmitARCDestroyWeak(llvm::Value *addr); 2455f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCLoadWeak(llvm::Value *addr); 2456f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCLoadWeakRetained(llvm::Value *addr); 2457f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCStoreWeak(llvm::Value *value, llvm::Value *addr, 2458f85e193739c953358c865005855253af4f68a497John McCall bool ignored); 2459f85e193739c953358c865005855253af4f68a497John McCall void EmitARCCopyWeak(llvm::Value *dst, llvm::Value *src); 2460f85e193739c953358c865005855253af4f68a497John McCall void EmitARCMoveWeak(llvm::Value *dst, llvm::Value *src); 2461f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCRetainAutorelease(QualType type, llvm::Value *value); 2462f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCRetainAutoreleaseNonBlock(llvm::Value *value); 2463545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall llvm::Value *EmitARCStoreStrong(LValue lvalue, llvm::Value *value, 24645b07e8077a20b80fee90bd76c43c6150c676e4a8John McCall bool resultIgnored); 2465f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCStoreStrongCall(llvm::Value *addr, llvm::Value *value, 24665b07e8077a20b80fee90bd76c43c6150c676e4a8John McCall bool resultIgnored); 2467f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCRetain(QualType type, llvm::Value *value); 2468f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCRetainNonBlock(llvm::Value *value); 2469348f16fc7c71f0d9b651cb79fd1012843073493fJohn McCall llvm::Value *EmitARCRetainBlock(llvm::Value *value, bool mandatory); 24705b07e8077a20b80fee90bd76c43c6150c676e4a8John McCall void EmitARCDestroyStrong(llvm::Value *addr, ARCPreciseLifetime_t precise); 24715b07e8077a20b80fee90bd76c43c6150c676e4a8John McCall void EmitARCRelease(llvm::Value *value, ARCPreciseLifetime_t precise); 2472f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCAutorelease(llvm::Value *value); 2473f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCAutoreleaseReturnValue(llvm::Value *value); 2474f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCRetainAutoreleaseReturnValue(llvm::Value *value); 2475f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCRetainAutoreleasedReturnValue(llvm::Value *value); 2476f85e193739c953358c865005855253af4f68a497John McCall 2477f85e193739c953358c865005855253af4f68a497John McCall std::pair<LValue,llvm::Value*> 2478f85e193739c953358c865005855253af4f68a497John McCall EmitARCStoreAutoreleasing(const BinaryOperator *e); 2479f85e193739c953358c865005855253af4f68a497John McCall std::pair<LValue,llvm::Value*> 2480f85e193739c953358c865005855253af4f68a497John McCall EmitARCStoreStrong(const BinaryOperator *e, bool ignored); 2481f85e193739c953358c865005855253af4f68a497John McCall 24822b014d6c0c6b8ac94b416ac37dfc7931f20777a7John McCall llvm::Value *EmitObjCThrowOperand(const Expr *expr); 24832b014d6c0c6b8ac94b416ac37dfc7931f20777a7John McCall 2484f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitObjCProduceObject(QualType T, llvm::Value *Ptr); 2485f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitObjCConsumeObject(QualType T, llvm::Value *Ptr); 2486f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitObjCExtendObjectLifetime(QualType T, llvm::Value *Ptr); 2487f85e193739c953358c865005855253af4f68a497John McCall 2488348f16fc7c71f0d9b651cb79fd1012843073493fJohn McCall llvm::Value *EmitARCExtendBlockObject(const Expr *expr); 2489f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCRetainScalarExpr(const Expr *expr); 2490f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCRetainAutoreleaseScalarExpr(const Expr *expr); 2491f85e193739c953358c865005855253af4f68a497John McCall 2492c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines void EmitARCIntrinsicUse(ArrayRef<llvm::Value*> values); 2493b6a6079449a5275c283982e19b0c38e165833bb2John McCall 2494bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall static Destroyer destroyARCStrongImprecise; 2495bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall static Destroyer destroyARCStrongPrecise; 2496bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall static Destroyer destroyARCWeak; 2497bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall 2498f85e193739c953358c865005855253af4f68a497John McCall void EmitObjCAutoreleasePoolPop(llvm::Value *Ptr); 2499f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitObjCAutoreleasePoolPush(); 2500f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitObjCMRRAutoreleasePoolPush(); 2501f85e193739c953358c865005855253af4f68a497John McCall void EmitObjCAutoreleasePoolCleanup(llvm::Value *Ptr); 2502f85e193739c953358c865005855253af4f68a497John McCall void EmitObjCMRRAutoreleasePoolPop(llvm::Value *Ptr); 2503f85e193739c953358c865005855253af4f68a497John McCall 2504d4ec562b3aaf50ea9015f82c96ebfd05a35fc7efRichard Smith /// \brief Emits a reference binding to the passed in expression. 2505d4ec562b3aaf50ea9015f82c96ebfd05a35fc7efRichard Smith RValue EmitReferenceBindingToExpr(const Expr *E); 25063aba09376c5f49c4c8d176109ea4835bc2c528eeAnders Carlsson 2507883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner //===--------------------------------------------------------------------===// 2508bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattner // Expression Emission 2509883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner //===--------------------------------------------------------------------===// 2510bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattner 2511bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattner // Expressions are broken into three classes: scalar, complex, aggregate. 25120dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 25130dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitScalarExpr - Emit the computation of the specified expression of LLVM 25140dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// scalar type, returning the result. 251514c5cbf59cffee52275230922283a247de407712Anders Carlsson llvm::Value *EmitScalarExpr(const Expr *E , bool IgnoreResultAssign = false); 25160dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 25173707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner /// EmitScalarConversion - Emit a conversion from the specified type to the 25183707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner /// specified destination type, both of which are LLVM scalar types. 25193707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner llvm::Value *EmitScalarConversion(llvm::Value *Src, QualType SrcTy, 25203707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner QualType DstTy); 25210dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 25224f1a7b380809b4ca19ad2daff61bc11cd1e979d8Chris Lattner /// EmitComplexToScalarConversion - Emit a conversion from the specified 25230dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// complex type to the specified destination type, where the destination type 25240dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// is an LLVM scalar type. 25254f1a7b380809b4ca19ad2daff61bc11cd1e979d8Chris Lattner llvm::Value *EmitComplexToScalarConversion(ComplexPairTy Src, QualType SrcTy, 25264f1a7b380809b4ca19ad2daff61bc11cd1e979d8Chris Lattner QualType DstTy); 25270dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 25280dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 2529558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// EmitAggExpr - Emit the computation of the specified expression 2530558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// of aggregate type. The result is computed into the given slot, 2531558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// which may be null to indicate that the value is not needed. 2532e0c1168ec7910a1a7ed08df4d4f0c58c2fa2ecd1John McCall void EmitAggExpr(const Expr *E, AggValueSlot AS); 25330dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 253418aba0dd518e486d8b50523e7dafb4b5657135d2Daniel Dunbar /// EmitAggExprToLValue - Emit the computation of the specified expression of 253518aba0dd518e486d8b50523e7dafb4b5657135d2Daniel Dunbar /// aggregate type into a temporary LValue. 253618aba0dd518e486d8b50523e7dafb4b5657135d2Daniel Dunbar LValue EmitAggExprToLValue(const Expr *E); 253718aba0dd518e486d8b50523e7dafb4b5657135d2Daniel Dunbar 2538082b02e8403d3ee9d2ded969fbe0e5d472f04cd8Fariborz Jahanian /// EmitGCMemmoveCollectable - Emit special API for structs with object 2539082b02e8403d3ee9d2ded969fbe0e5d472f04cd8Fariborz Jahanian /// pointers. 2540082b02e8403d3ee9d2ded969fbe0e5d472f04cd8Fariborz Jahanian void EmitGCMemmoveCollectable(llvm::Value *DestPtr, llvm::Value *SrcPtr, 254108c321380fff07d476a19daab6d29522c046cd49Fariborz Jahanian QualType Ty); 2542082b02e8403d3ee9d2ded969fbe0e5d472f04cd8Fariborz Jahanian 25430c24c808e4dce43e88abf2d5f98546b901bd4315John McCall /// EmitExtendGCLifetime - Given a pointer to an Objective-C object, 25440c24c808e4dce43e88abf2d5f98546b901bd4315John McCall /// make sure it survives garbage collection until this point. 25450c24c808e4dce43e88abf2d5f98546b901bd4315John McCall void EmitExtendGCLifetime(llvm::Value *object); 25460c24c808e4dce43e88abf2d5f98546b901bd4315John McCall 2547b6ef18a2b06d6760459e1756a61f79ff496cee19Chris Lattner /// EmitComplexExpr - Emit the computation of the specified expression of 254823b1cdb0b5e089468bb8475b8ec9287af67b4b59Chris Lattner /// complex type, returning the result. 2549b418d74c11498b7e1044103131e2e3be4d63512eJohn McCall ComplexPairTy EmitComplexExpr(const Expr *E, 2550b418d74c11498b7e1044103131e2e3be4d63512eJohn McCall bool IgnoreReal = false, 2551b418d74c11498b7e1044103131e2e3be4d63512eJohn McCall bool IgnoreImag = false); 25520dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 25539d232c884ea9872d6555df0fd7359699819bc1f1John McCall /// EmitComplexExprIntoLValue - Emit the given expression of complex 25549d232c884ea9872d6555df0fd7359699819bc1f1John McCall /// type and place its result into the specified l-value. 25559d232c884ea9872d6555df0fd7359699819bc1f1John McCall void EmitComplexExprIntoLValue(const Expr *E, LValue dest, bool isInit); 25569d232c884ea9872d6555df0fd7359699819bc1f1John McCall 25579d232c884ea9872d6555df0fd7359699819bc1f1John McCall /// EmitStoreOfComplex - Store a complex number into the specified l-value. 25589d232c884ea9872d6555df0fd7359699819bc1f1John McCall void EmitStoreOfComplex(ComplexPairTy V, LValue dest, bool isInit); 25597f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar 25609d232c884ea9872d6555df0fd7359699819bc1f1John McCall /// EmitLoadOfComplex - Load a complex number from the specified l-value. 25614ee7dc2369c1f0257a73b2e83a7d38fdebdd9176Nick Lewycky ComplexPairTy EmitLoadOfComplex(LValue src, SourceLocation loc); 25622621fd1d6d3c5eadcae246859f62738645df7540Chris Lattner 25630f30a12ce7b3d4d86c9ca9072f587da77c8eef34Chandler Carruth /// AddInitializerToStaticVarDecl - Add the initializer for 'D' to the 25640f30a12ce7b3d4d86c9ca9072f587da77c8eef34Chandler Carruth /// global variable that has already been created for it. If the initializer 25650f30a12ce7b3d4d86c9ca9072f587da77c8eef34Chandler Carruth /// has a different type than GV does, this may free GV and return a different 25660f30a12ce7b3d4d86c9ca9072f587da77c8eef34Chandler Carruth /// one. Otherwise it just returns GV. 25670f30a12ce7b3d4d86c9ca9072f587da77c8eef34Chandler Carruth llvm::GlobalVariable * 25680f30a12ce7b3d4d86c9ca9072f587da77c8eef34Chandler Carruth AddInitializerToStaticVarDecl(const VarDecl &D, 25690f30a12ce7b3d4d86c9ca9072f587da77c8eef34Chandler Carruth llvm::GlobalVariable *GV); 25709cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 25710096acf421c4609ce7f43e8b05f8c5ca866d4611Daniel Dunbar 25723b2e16b3d25f6b311dba2871e2a566c96238c3d2Anders Carlsson /// EmitCXXGlobalVarDeclInit - Create the initializer for a C++ 25733b2e16b3d25f6b311dba2871e2a566c96238c3d2Anders Carlsson /// variable with global storage. 25747ca4850a3e3530fa6c93b64b740446e32c97f992Richard Smith void EmitCXXGlobalVarDeclInit(const VarDecl &D, llvm::Constant *DeclPtr, 25757ca4850a3e3530fa6c93b64b740446e32c97f992Richard Smith bool PerformInit); 25763b2e16b3d25f6b311dba2871e2a566c96238c3d2Anders Carlsson 2577176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines llvm::Constant *createAtExitStub(const VarDecl &VD, llvm::Constant *Dtor, 2578176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines llvm::Constant *Addr); 2579176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines 258020bb175cb8ae5844034828db094fb948c0e3454aJohn McCall /// Call atexit() with a function that passes the given argument to 258120bb175cb8ae5844034828db094fb948c0e3454aJohn McCall /// the given function. 2582c7971a9efdf9880448a69aabb5182c3c27eecf6dDavid Blaikie void registerGlobalDtorWithAtExit(const VarDecl &D, llvm::Constant *fn, 2583c7971a9efdf9880448a69aabb5182c3c27eecf6dDavid Blaikie llvm::Constant *addr); 25841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25853030eb82593097502469a8b3fc26112c79c75605John McCall /// Emit code in this function to perform a guarded variable 25863030eb82593097502469a8b3fc26112c79c75605John McCall /// initialization. Guarded initializations are used when it's not 25873030eb82593097502469a8b3fc26112c79c75605John McCall /// possible to prove that an initialization will be done exactly 25883030eb82593097502469a8b3fc26112c79c75605John McCall /// once, e.g. with a static local variable or a static data member 25893030eb82593097502469a8b3fc26112c79c75605John McCall /// of a class template. 25900f30a12ce7b3d4d86c9ca9072f587da77c8eef34Chandler Carruth void EmitCXXGuardedInit(const VarDecl &D, llvm::GlobalVariable *DeclPtr, 25917ca4850a3e3530fa6c93b64b740446e32c97f992Richard Smith bool PerformInit); 25925cd91b513455fd7753e8815b54f0a49bbca6602dJohn McCall 2593efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar /// GenerateCXXGlobalInitFunc - Generates code for initializing global 2594efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar /// variables. 2595efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar void GenerateCXXGlobalInitFunc(llvm::Function *Fn, 2596176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines ArrayRef<llvm::Function *> CXXThreadLocals, 25976bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines llvm::GlobalVariable *Guard = nullptr); 2598efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar 25993f88f686e32949ffe02ccb551f482f9cf810358bJohn McCall /// GenerateCXXGlobalDtorsFunc - Generates code for destroying global 2600efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar /// variables. 26013f88f686e32949ffe02ccb551f482f9cf810358bJohn McCall void GenerateCXXGlobalDtorsFunc(llvm::Function *Fn, 26023f88f686e32949ffe02ccb551f482f9cf810358bJohn McCall const std::vector<std::pair<llvm::WeakVH, 26033f88f686e32949ffe02ccb551f482f9cf810358bJohn McCall llvm::Constant*> > &DtorsAndObjects); 2604efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar 2605d26bc76c98006609002d9930f8840490e88ac5b5John McCall void GenerateCXXGlobalVarDeclInitFunc(llvm::Function *Fn, 2606d26bc76c98006609002d9930f8840490e88ac5b5John McCall const VarDecl *D, 26077ca4850a3e3530fa6c93b64b740446e32c97f992Richard Smith llvm::GlobalVariable *Addr, 26087ca4850a3e3530fa6c93b64b740446e32c97f992Richard Smith bool PerformInit); 2609efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar 2610558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall void EmitCXXConstructExpr(const CXXConstructExpr *E, AggValueSlot Dest); 261134999876e215b22febc240b1a6dc054215d12f9cFariborz Jahanian 261234999876e215b22febc240b1a6dc054215d12f9cFariborz Jahanian void EmitSynthesizedCXXCopyCtor(llvm::Value *Dest, llvm::Value *Src, 2613830937bc1100fba7682f7c32c40512085870f50cFariborz Jahanian const Expr *Exp); 26141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26151a343ebbf413e8eae6b2737b2b2d79cbf5765571John McCall void enterFullExpression(const ExprWithCleanups *E) { 26161a343ebbf413e8eae6b2737b2b2d79cbf5765571John McCall if (E->getNumObjects() == 0) return; 26171a343ebbf413e8eae6b2737b2b2d79cbf5765571John McCall enterNonTrivialFullExpression(E); 26181a343ebbf413e8eae6b2737b2b2d79cbf5765571John McCall } 26191a343ebbf413e8eae6b2737b2b2d79cbf5765571John McCall void enterNonTrivialFullExpression(const ExprWithCleanups *E); 26201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26214c71b8cded575b0cfc133c5da4502ca613982094Richard Smith void EmitCXXThrowExpr(const CXXThrowExpr *E, bool KeepInsertionPoint = true); 26221eb2e59338c4b9c0429fc39ca98662adc9e7a3f2Douglas Gregor 26234c5d8afd100189b6cce4fd89bfb8aec5700acb50Eli Friedman void EmitLambdaExpr(const LambdaExpr *E, AggValueSlot Dest); 26244c5d8afd100189b6cce4fd89bfb8aec5700acb50Eli Friedman 26256bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines RValue EmitAtomicExpr(AtomicExpr *E, llvm::Value *Dest = nullptr); 2626276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 26270ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar //===--------------------------------------------------------------------===// 262877f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge // Annotations Emission 262977f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge //===--------------------------------------------------------------------===// 263077f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge 263177f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge /// Emit an annotation call (intrinsic or builtin). 263277f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge llvm::Value *EmitAnnotationCall(llvm::Value *AnnotationFn, 263377f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge llvm::Value *AnnotatedVal, 2634cfa88f893915ceb8ae4ce2f17c46c24a4d67502fDmitri Gribenko StringRef AnnotationStr, 263577f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge SourceLocation Location); 263677f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge 263777f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge /// Emit local annotations for the local variable V, declared by D. 263877f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge void EmitVarAnnotations(const VarDecl *D, llvm::Value *V); 263977f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge 264077f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge /// Emit field annotations for the given field & value. Returns the 264177f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge /// annotation result. 264277f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge llvm::Value *EmitFieldAnnotations(const FieldDecl *D, llvm::Value *V); 264377f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge 264477f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge //===--------------------------------------------------------------------===// 26450ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar // Internal Helpers 26460ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar //===--------------------------------------------------------------------===// 26470dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 26480946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner /// ContainsLabel - Return true if the statement contains a label in it. If 26490946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner /// this statement is not executed normally, it not containing a label means 26500946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner /// that we can just remove the code. 26510946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner static bool ContainsLabel(const Stmt *S, bool IgnoreCaseStmts = false); 26520dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 2653ef425a69006afaa87751ee41ccf8ff405d9ede70Chris Lattner /// containsBreak - Return true if the statement contains a break out of it. 2654ef425a69006afaa87751ee41ccf8ff405d9ede70Chris Lattner /// If the statement (recursively) contains a switch or loop with a break 2655ef425a69006afaa87751ee41ccf8ff405d9ede70Chris Lattner /// inside of it, this is fine. 2656ef425a69006afaa87751ee41ccf8ff405d9ede70Chris Lattner static bool containsBreak(const Stmt *S); 2657ef425a69006afaa87751ee41ccf8ff405d9ede70Chris Lattner 26584bc0455d826e9634b7a68c0d06146edd633c9453Daniel Dunbar /// ConstantFoldsToSimpleInteger - If the specified expression does not fold 2659c2c90011a688c04a4e980282f08c267e081c4b00Chris Lattner /// to a constant, or if it does but contains a label, return false. If it 2660c2c90011a688c04a4e980282f08c267e081c4b00Chris Lattner /// constant folds return true and set the boolean result in Result. 2661c2c90011a688c04a4e980282f08c267e081c4b00Chris Lattner bool ConstantFoldsToSimpleInteger(const Expr *Cond, bool &Result); 26620dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 2663ef425a69006afaa87751ee41ccf8ff405d9ede70Chris Lattner /// ConstantFoldsToSimpleInteger - If the specified expression does not fold 2664ef425a69006afaa87751ee41ccf8ff405d9ede70Chris Lattner /// to a constant, or if it does but contains a label, return false. If it 2665ef425a69006afaa87751ee41ccf8ff405d9ede70Chris Lattner /// constant folds return true and set the folded value. 2666e1ecdc168175719d74e112bcacd4aae5e12d4631Richard Trieu bool ConstantFoldsToSimpleInteger(const Expr *Cond, llvm::APSInt &Result); 2667ef425a69006afaa87751ee41ccf8ff405d9ede70Chris Lattner 266831a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// EmitBranchOnBoolExpr - Emit a branch on a boolean condition (e.g. for an 266931a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// if statement) to the specified blocks. Based on the condition, this might 267031a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// try to simplify the codegen of the conditional based on the branch. 2671651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines /// TrueCount should be the number of times we expect the condition to 2672651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines /// evaluate to true based on PGO data. 26739bc47e29dce8f095be7a6d07dbb02a5a7a112949Chris Lattner void EmitBranchOnBoolExpr(const Expr *Cond, llvm::BasicBlock *TrueBlock, 2674651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines llvm::BasicBlock *FalseBlock, uint64_t TrueCount); 2675be07f60131bc6f8d6696f4644df1ef667a1730d5Mike Stump 26764def70d3040e73707c738f7c366737a986135edfRichard Smith /// \brief Emit a description of a type in a format suitable for passing to 26774def70d3040e73707c738f7c366737a986135edfRichard Smith /// a runtime sanitizer handler. 26784def70d3040e73707c738f7c366737a986135edfRichard Smith llvm::Constant *EmitCheckTypeDescriptor(QualType T); 26794def70d3040e73707c738f7c366737a986135edfRichard Smith 26804def70d3040e73707c738f7c366737a986135edfRichard Smith /// \brief Convert a value into a format suitable for passing to a runtime 26814def70d3040e73707c738f7c366737a986135edfRichard Smith /// sanitizer handler. 26824def70d3040e73707c738f7c366737a986135edfRichard Smith llvm::Value *EmitCheckValue(llvm::Value *V); 26834def70d3040e73707c738f7c366737a986135edfRichard Smith 26844def70d3040e73707c738f7c366737a986135edfRichard Smith /// \brief Emit a description of a source location in a format suitable for 26854def70d3040e73707c738f7c366737a986135edfRichard Smith /// passing to a runtime sanitizer handler. 26864def70d3040e73707c738f7c366737a986135edfRichard Smith llvm::Constant *EmitCheckSourceLocation(SourceLocation Loc); 26874def70d3040e73707c738f7c366737a986135edfRichard Smith 2688cc305617e952f8c3a06b63d9225d0dd7769341b7Richard Smith /// \brief Create a basic block that will call a handler function in a 2689cc305617e952f8c3a06b63d9225d0dd7769341b7Richard Smith /// sanitizer runtime with the provided arguments, and create a conditional 2690cc305617e952f8c3a06b63d9225d0dd7769341b7Richard Smith /// branch to it. 2691176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines void EmitCheck(ArrayRef<std::pair<llvm::Value *, SanitizerKind>> Checked, 2692176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines StringRef CheckName, ArrayRef<llvm::Constant *> StaticArgs, 2693176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines ArrayRef<llvm::Value *> DynamicArgs); 26949cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 2695cc305617e952f8c3a06b63d9225d0dd7769341b7Richard Smith /// \brief Create a basic block that will call the trap intrinsic, and emit a 2696cc305617e952f8c3a06b63d9225d0dd7769341b7Richard Smith /// conditional branch to it, for the -ftrapv checks. 269778d85b1c5830a881c0a20a1b3fea99ee73149590Chad Rosier void EmitTrapCheck(llvm::Value *Checked); 2698cc305617e952f8c3a06b63d9225d0dd7769341b7Richard Smith 269921c9ad9d29d08a287292c670e7c52bc522c7f8bbAnders Carlsson /// EmitCallArg - Emit a single call argument. 2700413ebdb1af6fb0d81845b61254daf02ba0449afdJohn McCall void EmitCallArg(CallArgList &args, const Expr *E, QualType ArgType); 270121c9ad9d29d08a287292c670e7c52bc522c7f8bbAnders Carlsson 27022736071ea3a46f90e65c93418961611d96c10ab9John McCall /// EmitDelegateCallArg - We are performing a delegate call; that 27032736071ea3a46f90e65c93418961611d96c10ab9John McCall /// is, the current function is delegating to another one. Produce 27042736071ea3a46f90e65c93418961611d96c10ab9John McCall /// a r-value suitable for passing the given parameter. 27054ee7dc2369c1f0257a73b2e83a7d38fdebdd9176Nick Lewycky void EmitDelegateCallArg(CallArgList &args, const VarDecl *param, 27064ee7dc2369c1f0257a73b2e83a7d38fdebdd9176Nick Lewycky SourceLocation loc); 27072736071ea3a46f90e65c93418961611d96c10ab9John McCall 2708c5096cbf7a42e0f9012945b00d9037a5b5a88d72Peter Collingbourne /// SetFPAccuracy - Set the minimum required accuracy of the given floating 2709c5096cbf7a42e0f9012945b00d9037a5b5a88d72Peter Collingbourne /// point operation, expressed as the maximum relative error in ulp. 27108250016fb9491fcfde7fce05230d66e267944484Duncan Sands void SetFPAccuracy(llvm::Value *Val, float Accuracy); 2711c5096cbf7a42e0f9012945b00d9037a5b5a88d72Peter Collingbourne 271231a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattnerprivate: 2713c3f8955d7da1019dbe16b0bdf3e49d2e08d988e9Rafael Espindola llvm::MDNode *getRangeForLoadFromType(QualType Ty); 271429e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar void EmitReturnOfRValue(RValue RV, QualType Ty); 271529e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar 2716651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines void deferPlaceholderReplacement(llvm::Instruction *Old, llvm::Value *New); 2717651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 2718651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines llvm::SmallVector<std::pair<llvm::Instruction *, llvm::Value *>, 4> 2719651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines DeferredReplacements; 2720651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 27215627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// ExpandTypeFromArgs - Reconstruct a structure of type \arg Ty 27225627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// from function arguments into \arg Dst. See ABIArgInfo::Expand. 27235627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// 27245627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// \param AI - The first function argument of the expansion. 2725176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines void ExpandTypeFromArgs(QualType Ty, LValue Dst, 2726176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines SmallVectorImpl<llvm::Argument *>::iterator &AI); 2727176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines 2728176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines /// ExpandTypeToArgs - Expand an RValue \arg RV, with the LLVM type for \arg 2729176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines /// Ty, into individual arguments on the provided vector \arg IRCallArgs, 2730176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines /// starting at index \arg IRCallArgPos. See ABIArgInfo::Expand. 2731176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines void ExpandTypeToArgs(QualType Ty, RValue RV, llvm::FunctionType *IRFuncTy, 2732176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines SmallVectorImpl<llvm::Value *> &IRCallArgs, 2733176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines unsigned &IRCallArgPos); 2734c8c7b187adcd989e01a9fba1ebead6c2abd770c9Anders Carlsson 273542b60551eff3a424e191b293bfd606559dc96bffChad Rosier llvm::Value* EmitAsmInput(const TargetInfo::ConstraintInfo &Info, 2736c8c7b187adcd989e01a9fba1ebead6c2abd770c9Anders Carlsson const Expr *InputExpr, std::string &ConstraintStr); 27370dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 273842b60551eff3a424e191b293bfd606559dc96bffChad Rosier llvm::Value* EmitAsmInputLValue(const TargetInfo::ConstraintInfo &Info, 27396d7cfd7ef82e42ff30ee1dafd2883fd94e9f8294Eli Friedman LValue InputValue, QualType InputType, 27404ee7dc2369c1f0257a73b2e83a7d38fdebdd9176Nick Lewycky std::string &ConstraintStr, 27414ee7dc2369c1f0257a73b2e83a7d38fdebdd9176Nick Lewycky SourceLocation Loc); 27426d7cfd7ef82e42ff30ee1dafd2883fd94e9f8294Eli Friedman 2743651f13cea278ec967336033dd032faef0e9fc2ecStephen Hinespublic: 27440139bb96494b4c4ba0824617d5d2495dc7e44c76Anders Carlsson /// EmitCallArgs - Emit call arguments for a function. 2745651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines template <typename T> 2746651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines void EmitCallArgs(CallArgList &Args, const T *CallArgTypeInfo, 27470139bb96494b4c4ba0824617d5d2495dc7e44c76Anders Carlsson CallExpr::const_arg_iterator ArgBeg, 2748b0e603c63813c8378e35a75408ab4cefe71e93e2Adrian Prantl CallExpr::const_arg_iterator ArgEnd, 2749176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines const FunctionDecl *CalleeDecl = nullptr, 27500e2c34f92f00628d48968dfea096d36381f494cbStephen Hines unsigned ParamsToSkip = 0) { 2751651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines SmallVector<QualType, 16> ArgTypes; 2752b0e603c63813c8378e35a75408ab4cefe71e93e2Adrian Prantl CallExpr::const_arg_iterator Arg = ArgBeg; 2753af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson 2754176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines assert((ParamsToSkip == 0 || CallArgTypeInfo) && 2755176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines "Can't skip parameters if type info is not provided"); 2756176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines if (CallArgTypeInfo) { 2757176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines // First, use the argument types that the type info knows about 2758176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines for (auto I = CallArgTypeInfo->param_type_begin() + ParamsToSkip, 2759176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines E = CallArgTypeInfo->param_type_end(); 2760176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines I != E; ++I, ++Arg) { 2761176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines assert(Arg != ArgEnd && "Running over edge of argument list!"); 27620e2c34f92f00628d48968dfea096d36381f494cbStephen Hines assert( 27630e2c34f92f00628d48968dfea096d36381f494cbStephen Hines ((*I)->isVariablyModifiedType() || 27640e2c34f92f00628d48968dfea096d36381f494cbStephen Hines getContext() 27650e2c34f92f00628d48968dfea096d36381f494cbStephen Hines .getCanonicalType((*I).getNonReferenceType()) 27660e2c34f92f00628d48968dfea096d36381f494cbStephen Hines .getTypePtr() == 27670e2c34f92f00628d48968dfea096d36381f494cbStephen Hines getContext().getCanonicalType(Arg->getType()).getTypePtr()) && 27680e2c34f92f00628d48968dfea096d36381f494cbStephen Hines "type mismatch in call argument!"); 2769176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines ArgTypes.push_back(*I); 2770176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines } 2771af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson } 27721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2773651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // Either we've emitted all the call args, or we have a call to variadic 2774176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines // function. 2775176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines assert( 2776176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines (Arg == ArgEnd || !CallArgTypeInfo || CallArgTypeInfo->isVariadic()) && 2777176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines "Extra arguments in non-variadic function!"); 2778651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 2779af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson // If we still have any arguments, emit them using the type of the argument. 2780651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines for (; Arg != ArgEnd; ++Arg) 2781176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines ArgTypes.push_back(getVarArgType(*Arg)); 2782b0e603c63813c8378e35a75408ab4cefe71e93e2Adrian Prantl 27830e2c34f92f00628d48968dfea096d36381f494cbStephen Hines EmitCallArgs(Args, ArgTypes, ArgBeg, ArgEnd, CalleeDecl, ParamsToSkip); 2784af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson } 2785492c4f998d848673d3d6c9e6416115df4036a71dJohn McCall 2786651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines void EmitCallArgs(CallArgList &Args, ArrayRef<QualType> ArgTypes, 2787651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines CallExpr::const_arg_iterator ArgBeg, 2788c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines CallExpr::const_arg_iterator ArgEnd, 2789176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines const FunctionDecl *CalleeDecl = nullptr, 27900e2c34f92f00628d48968dfea096d36381f494cbStephen Hines unsigned ParamsToSkip = 0); 2791651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 2792651f13cea278ec967336033dd032faef0e9fc2ecStephen Hinesprivate: 2793176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines QualType getVarArgType(const Expr *Arg); 2794176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines 2795492c4f998d848673d3d6c9e6416115df4036a71dJohn McCall const TargetCodeGenInfo &getTargetHooks() const { 2796492c4f998d848673d3d6c9e6416115df4036a71dJohn McCall return CGM.getTargetCodeGenInfo(); 2797492c4f998d848673d3d6c9e6416115df4036a71dJohn McCall } 2798744016dde06fcffd50931e94a98c850f8b12cd87John McCall 2799744016dde06fcffd50931e94a98c850f8b12cd87John McCall void EmitDeclMetadata(); 2800f0c11f7e6848f023ced6a5b51399ba787c7d4d0bJohn McCall 2801f0c11f7e6848f023ced6a5b51399ba787c7d4d0bJohn McCall CodeGenModule::ByrefHelpers * 28022acc6e3feda5e4f7d9009bdcf8b1cd777fecfe2dChris Lattner buildByrefHelpers(llvm::StructType &byrefType, 2803f0c11f7e6848f023ced6a5b51399ba787c7d4d0bJohn McCall const AutoVarEmission &emission); 2804b49bd27b334a6c4e3bf9d810a7d5b022578f1194Dan Gohman 2805b49bd27b334a6c4e3bf9d810a7d5b022578f1194Dan Gohman void AddObjCARCExceptionMetadata(llvm::Instruction *Inst); 2806f4c3db175101cbf94dad59419c3ed7aed51bf606Jay Foad 2807ea93e40785ffeadfac66b948c95f9490ec26207aEli Friedman /// GetPointeeAlignment - Given an expression with a pointer type, emit the 2808ea93e40785ffeadfac66b948c95f9490ec26207aEli Friedman /// value and compute our best estimate of the alignment of the pointee. 2809ea93e40785ffeadfac66b948c95f9490ec26207aEli Friedman std::pair<llvm::Value*, unsigned> EmitPointerWithAlignment(const Expr *Addr); 28100e2c34f92f00628d48968dfea096d36381f494cbStephen Hines 28110e2c34f92f00628d48968dfea096d36381f494cbStephen Hines llvm::Value *GetValueForARMHint(unsigned BuiltinID); 28125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 28131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2814150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall/// Helper class with most of the code for saving a value for a 2815150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall/// conditional expression cleanup. 2816804b807ea918184d6de63bd745e1ff75a9bfc679John McCallstruct DominatingLLVMValue { 2817150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall typedef llvm::PointerIntPair<llvm::Value*, 1, bool> saved_type; 2818150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 2819150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// Answer whether the given value needs extra work to be saved. 2820150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall static bool needsSaving(llvm::Value *value) { 2821150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall // If it's not an instruction, we don't need to save. 2822150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall if (!isa<llvm::Instruction>(value)) return false; 2823150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 2824150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall // If it's an instruction in the entry block, we don't need to save. 2825150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall llvm::BasicBlock *block = cast<llvm::Instruction>(value)->getParent(); 2826150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall return (block != &block->getParent()->getEntryBlock()); 2827150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 2828150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 2829150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// Try to save the given value. 2830150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall static saved_type save(CodeGenFunction &CGF, llvm::Value *value) { 2831150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall if (!needsSaving(value)) return saved_type(value, false); 2832150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 2833150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall // Otherwise we need an alloca. 2834150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall llvm::Value *alloca = 2835150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall CGF.CreateTempAlloca(value->getType(), "cond-cleanup.save"); 2836150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall CGF.Builder.CreateStore(value, alloca); 2837150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 2838150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall return saved_type(alloca, true); 2839150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 2840150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 2841150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall static llvm::Value *restore(CodeGenFunction &CGF, saved_type value) { 2842150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall if (!value.getInt()) return value.getPointer(); 2843150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall return CGF.Builder.CreateLoad(value.getPointer()); 2844150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 2845150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall}; 2846150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 2847804b807ea918184d6de63bd745e1ff75a9bfc679John McCall/// A partial specialization of DominatingValue for llvm::Values that 2848804b807ea918184d6de63bd745e1ff75a9bfc679John McCall/// might be llvm::Instructions. 2849804b807ea918184d6de63bd745e1ff75a9bfc679John McCalltemplate <class T> struct DominatingPointer<T,true> : DominatingLLVMValue { 2850804b807ea918184d6de63bd745e1ff75a9bfc679John McCall typedef T *type; 2851804b807ea918184d6de63bd745e1ff75a9bfc679John McCall static type restore(CodeGenFunction &CGF, saved_type value) { 2852804b807ea918184d6de63bd745e1ff75a9bfc679John McCall return static_cast<T*>(DominatingLLVMValue::restore(CGF, value)); 2853804b807ea918184d6de63bd745e1ff75a9bfc679John McCall } 2854804b807ea918184d6de63bd745e1ff75a9bfc679John McCall}; 2855804b807ea918184d6de63bd745e1ff75a9bfc679John McCall 2856804b807ea918184d6de63bd745e1ff75a9bfc679John McCall/// A specialization of DominatingValue for RValue. 2857804b807ea918184d6de63bd745e1ff75a9bfc679John McCalltemplate <> struct DominatingValue<RValue> { 2858804b807ea918184d6de63bd745e1ff75a9bfc679John McCall typedef RValue type; 2859804b807ea918184d6de63bd745e1ff75a9bfc679John McCall class saved_type { 2860804b807ea918184d6de63bd745e1ff75a9bfc679John McCall enum Kind { ScalarLiteral, ScalarAddress, AggregateLiteral, 2861804b807ea918184d6de63bd745e1ff75a9bfc679John McCall AggregateAddress, ComplexAddress }; 2862804b807ea918184d6de63bd745e1ff75a9bfc679John McCall 2863804b807ea918184d6de63bd745e1ff75a9bfc679John McCall llvm::Value *Value; 2864804b807ea918184d6de63bd745e1ff75a9bfc679John McCall Kind K; 2865804b807ea918184d6de63bd745e1ff75a9bfc679John McCall saved_type(llvm::Value *v, Kind k) : Value(v), K(k) {} 2866804b807ea918184d6de63bd745e1ff75a9bfc679John McCall 2867804b807ea918184d6de63bd745e1ff75a9bfc679John McCall public: 2868804b807ea918184d6de63bd745e1ff75a9bfc679John McCall static bool needsSaving(RValue value); 2869804b807ea918184d6de63bd745e1ff75a9bfc679John McCall static saved_type save(CodeGenFunction &CGF, RValue value); 2870804b807ea918184d6de63bd745e1ff75a9bfc679John McCall RValue restore(CodeGenFunction &CGF); 2871804b807ea918184d6de63bd745e1ff75a9bfc679John McCall 2872804b807ea918184d6de63bd745e1ff75a9bfc679John McCall // implementations in CGExprCXX.cpp 2873804b807ea918184d6de63bd745e1ff75a9bfc679John McCall }; 2874804b807ea918184d6de63bd745e1ff75a9bfc679John McCall 2875804b807ea918184d6de63bd745e1ff75a9bfc679John McCall static bool needsSaving(type value) { 2876804b807ea918184d6de63bd745e1ff75a9bfc679John McCall return saved_type::needsSaving(value); 2877804b807ea918184d6de63bd745e1ff75a9bfc679John McCall } 2878804b807ea918184d6de63bd745e1ff75a9bfc679John McCall static saved_type save(CodeGenFunction &CGF, type value) { 2879804b807ea918184d6de63bd745e1ff75a9bfc679John McCall return saved_type::save(CGF, value); 2880804b807ea918184d6de63bd745e1ff75a9bfc679John McCall } 2881150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall static type restore(CodeGenFunction &CGF, saved_type value) { 2882804b807ea918184d6de63bd745e1ff75a9bfc679John McCall return value.restore(CGF); 2883150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 2884150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall}; 2885150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 28865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace CodeGen 28875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace clang 28884e1524babb095e70de1da882573eb6fbee98a857Fariborz Jahanian 28895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#endif 2890