CodeGenFunction.h revision 8137a607eebe799d95fd05226fb91119a5b054b0
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 14ef52a2fb2ace36c92f88c6e125bd7defa17dafa5Chris Lattner#ifndef CLANG_CODEGEN_CODEGENFUNCTION_H 15ef52a2fb2ace36c92f88c6e125bd7defa17dafa5Chris Lattner#define CLANG_CODEGEN_CODEGENFUNCTION_H 165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1755fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "CGBuilder.h" 1855fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "CGDebugInfo.h" 1955fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "CGValue.h" 2043a75fcbe4b592d7bea1fe262117114bcebc003cReid Kleckner#include "EHScopeStack.h" 2155fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "CodeGenModule.h" 2255fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/AST/CharUnits.h" 23e3a09e6ad09f8d1387ecaa008aaf85527909da0aArgyrios Kyrtzidis#include "clang/AST/ExprCXX.h" 245549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek#include "clang/AST/ExprObjC.h" 2555fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/AST/Type.h" 2614110477887e3dc168ffc6c191e72d705051f99ePeter Collingbourne#include "clang/Basic/ABI.h" 27524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir#include "clang/Basic/CapturedStmt.h" 28481769b5dc102b0256b35581e787909ad5edfab5Chris Lattner#include "clang/Basic/TargetInfo.h" 2955fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/Frontend/CodeGenOptions.h" 304c7d9f1507d0f102bd4133bba63348636facd469Jay Foad#include "llvm/ADT/ArrayRef.h" 31481769b5dc102b0256b35581e787909ad5edfab5Chris Lattner#include "llvm/ADT/DenseMap.h" 32481769b5dc102b0256b35581e787909ad5edfab5Chris Lattner#include "llvm/ADT/SmallVector.h" 33c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher#include "llvm/Support/Debug.h" 3455fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "llvm/Support/ValueHandle.h" 358f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar 365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace llvm { 37c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class BasicBlock; 38f21efe9088a0b3eda1209d1706529f6cb2073092Benjamin Kramer class LLVMContext; 39dd5c98f709837e5dd3da08d44d1ce407975df2cfDavid Chisnall class MDNode; 405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class Module; 41898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar class SwitchInst; 42259e9ccf882d11491ad149aec5e6d7a061c9f938Daniel Dunbar class Twine; 43ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar class Value; 44f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall class CallSite; 455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace clang { 485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class ASTContext; 491a343ebbf413e8eae6b2737b2b2d79cbf5765571John McCall class BlockDecl; 507267c1693abe7875b0c57268be05005ae013c6c9Anders Carlsson class CXXDestructorDecl; 51ad762fcdc16b9e4705b12b09d92b8c026212b906Richard Smith class CXXForRangeStmt; 526815e941998659a55c20c147861b0f437928c3d8Anders Carlsson class CXXTryStmt; 535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class Decl; 54ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner class LabelDecl; 55c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class EnumConstantDecl; 565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class FunctionDecl; 5772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor class FunctionProtoType; 58c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class LabelStmt; 59679a502d462ef819e6175b58e255ca3f3391e7cfFariborz Jahanian class ObjCContainerDecl; 6029e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar class ObjCInterfaceDecl; 6129e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar class ObjCIvarDecl; 62391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner class ObjCMethodDecl; 63fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian class ObjCImplementationDecl; 64af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar class ObjCPropertyImplDecl; 655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class TargetInfo; 66492c4f998d848673d3d6c9e6416115df4036a71dJohn McCall class TargetCodeGenInfo; 67c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class VarDecl; 6816f0049415ec596504891259e2a83e19871c0d52Chris Lattner class ObjCForCollectionStmt; 6916f0049415ec596504891259e2a83e19871c0d52Chris Lattner class ObjCAtTryStmt; 7016f0049415ec596504891259e2a83e19871c0d52Chris Lattner class ObjCAtThrowStmt; 7116f0049415ec596504891259e2a83e19871c0d52Chris Lattner class ObjCAtSynchronizedStmt; 72f85e193739c953358c865005855253af4f68a497John McCall class ObjCAutoreleasePoolStmt; 735549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek 745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace CodeGen { 75b84a06e68ffd71da22e3c75b6e4bbdba37816413Devang Patel class CodeGenTypes; 76bb36d331f439f49859efcfb4435c61762fbba6f9Daniel Dunbar class CGFunctionInfo; 770dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump class CGRecordLayout; 78ee5042903d53fa7b0fbc1902d0ea07d57c7775b1John McCall class CGBlockInfo; 794c40d98ab7acf5f27fa89b17bd8fc0ef7683df37John McCall class CGCXXABI; 80d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall class BlockFlags; 81d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall class BlockFieldFlags; 820dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 839d232c884ea9872d6555df0fd7359699819bc1f1John McCall/// The kind of evaluation to perform on values of a particular 849d232c884ea9872d6555df0fd7359699819bc1f1John McCall/// type. Basically, is the code in CGExprScalar, CGExprComplex, or 859d232c884ea9872d6555df0fd7359699819bc1f1John McCall/// CGExprAgg? 869d232c884ea9872d6555df0fd7359699819bc1f1John McCall/// 879d232c884ea9872d6555df0fd7359699819bc1f1John McCall/// TODO: should vectors maybe be split out into their own thing? 889d232c884ea9872d6555df0fd7359699819bc1f1John McCallenum TypeEvaluationKind { 899d232c884ea9872d6555df0fd7359699819bc1f1John McCall TEK_Scalar, 909d232c884ea9872d6555df0fd7359699819bc1f1John McCall TEK_Complex, 919d232c884ea9872d6555df0fd7359699819bc1f1John McCall TEK_Aggregate 929d232c884ea9872d6555df0fd7359699819bc1f1John McCall}; 939d232c884ea9872d6555df0fd7359699819bc1f1John McCall 945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// CodeGenFunction - This class organizes the per-function state that is used 955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// while generating LLVM code. 965936e33bf74dd6bf126ceee0f6169a2593d03a69John McCallclass CodeGenFunction : public CodeGenTypeCache { 97f56faa01936b9cf909623d7f06e3c2569ca4a78eDmitri Gribenko CodeGenFunction(const CodeGenFunction &) LLVM_DELETED_FUNCTION; 98f56faa01936b9cf909623d7f06e3c2569ca4a78eDmitri Gribenko void operator=(const CodeGenFunction &) LLVM_DELETED_FUNCTION; 994c40d98ab7acf5f27fa89b17bd8fc0ef7683df37John McCall 1004c40d98ab7acf5f27fa89b17bd8fc0ef7683df37John McCall friend class CGCXXABI; 101bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattnerpublic: 102ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall /// A jump destination is an abstract label, branching to which may 103ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall /// require a jump out through normal cleanups. 104f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall struct JumpDest { 105ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall JumpDest() : Block(0), ScopeDepth(), Index(0) {} 106ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall JumpDest(llvm::BasicBlock *Block, 107ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall EHScopeStack::stable_iterator Depth, 108ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall unsigned Index) 109ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall : Block(Block), ScopeDepth(Depth), Index(Index) {} 110ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall 111ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall bool isValid() const { return Block != 0; } 112ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall llvm::BasicBlock *getBlock() const { return Block; } 113ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall EHScopeStack::stable_iterator getScopeDepth() const { return ScopeDepth; } 114ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall unsigned getDestIndex() const { return Index; } 1159cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 116495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem // This should be used cautiously. 117495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem void setScopeDepth(EHScopeStack::stable_iterator depth) { 118495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem ScopeDepth = depth; 119495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem } 120495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem 121ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall private: 122f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *Block; 123f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall EHScopeStack::stable_iterator ScopeDepth; 124ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall unsigned Index; 125ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall }; 126ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall 1275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CodeGenModule &CGM; // Per-module state. 128444be7366d0a1e172c0290a1ea54c1cb16b5947cDaniel Dunbar const TargetInfo &Target; 1290dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 13058dee10ed2eee34035f62d1c2d32b3639e9182f8Chris Lattner typedef std::pair<llvm::Value *, llvm::Value *> ComplexPairTy; 13145d196b8387dcefc4df26cda114fa34c6528e928Daniel Dunbar CGBuilderTy Builder; 1320dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 133f5ebf9bf1df10ac15ba32a4b24dfe171b7848c58John McCall /// CurFuncDecl - Holds the Decl for the current outermost 134f5ebf9bf1df10ac15ba32a4b24dfe171b7848c58John McCall /// non-closure context. 1354111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner const Decl *CurFuncDecl; 136b5437d238752dc297e42410e98d38d5250fe0463Chris Lattner /// CurCodeDecl - This is the inner-most code context, which includes blocks. 137b5437d238752dc297e42410e98d38d5250fe0463Chris Lattner const Decl *CurCodeDecl; 13888b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar const CGFunctionInfo *CurFnInfo; 139391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner QualType FnRetTy; 1405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::Function *CurFn; 1415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1426a1e0eb557d47e85185e09bdf8721f53f4bf9c9cMike Stump /// CurGD - The GlobalDecl for the current function being compiled. 1436a1e0eb557d47e85185e09bdf8721f53f4bf9c9cMike Stump GlobalDecl CurGD; 1446a1e0eb557d47e85185e09bdf8721f53f4bf9c9cMike Stump 145f85e193739c953358c865005855253af4f68a497John McCall /// PrologueCleanupDepth - The cleanup depth enclosing all the 146f85e193739c953358c865005855253af4f68a497John McCall /// cleanups associated with the parameters. 147f85e193739c953358c865005855253af4f68a497John McCall EHScopeStack::stable_iterator PrologueCleanupDepth; 148f85e193739c953358c865005855253af4f68a497John McCall 1495ca2084cf9b529563209429857f01fdae9dcdfa5Daniel Dunbar /// ReturnBlock - Unified return block. 150f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall JumpDest ReturnBlock; 151f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 1520dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// ReturnValue - The temporary alloca to hold the return value. This is null 153f3477c13eeaf11b32a41f181398fb5deffd0dd73Sylvestre Ledru /// iff the function has no return value. 154b17daf9ab790ae71aacad2cc4aa11cd8d86c25d1Eli Friedman llvm::Value *ReturnValue; 1550dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// AllocaInsertPoint - This is an instruction in the entry block before which 1575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// we prefer to insert allocas. 158481769b5dc102b0256b35581e787909ad5edfab5Chris Lattner llvm::AssertingVH<llvm::Instruction> AllocaInsertPt; 1590ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar 160524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir /// \brief API for captured statement code generation. 161524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir class CGCapturedStmtInfo { 162524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir public: 163524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir explicit CGCapturedStmtInfo(const CapturedStmt &S, 164524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir CapturedRegionKind K = CR_Default) 165524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir : Kind(K), ThisValue(0), CXXThisFieldDecl(0) { 166524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir 167524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir RecordDecl::field_iterator Field = 168524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir S.getCapturedRecordDecl()->field_begin(); 169524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir for (CapturedStmt::const_capture_iterator I = S.capture_begin(), 170524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir E = S.capture_end(); 171524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir I != E; ++I, ++Field) { 172524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir if (I->capturesThis()) 173524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir CXXThisFieldDecl = *Field; 174524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir else 175524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir CaptureFields[I->getCapturedVar()] = *Field; 176524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir } 177524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir } 178524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir 179524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir virtual ~CGCapturedStmtInfo(); 180524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir 181524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir CapturedRegionKind getKind() const { return Kind; } 182524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir 183524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir void setContextValue(llvm::Value *V) { ThisValue = V; } 184524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir // \brief Retrieve the value of the context parameter. 185524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir llvm::Value *getContextValue() const { return ThisValue; } 186524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir 187524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir /// \brief Lookup the captured field decl for a variable. 188524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir const FieldDecl *lookup(const VarDecl *VD) const { 189524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir return CaptureFields.lookup(VD); 190524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir } 191524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir 192524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir bool isCXXThisExprCaptured() const { return CXXThisFieldDecl != 0; } 193524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir FieldDecl *getThisFieldDecl() const { return CXXThisFieldDecl; } 194524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir 195524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir /// \brief Emit the captured statement body. 196524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir virtual void EmitBody(CodeGenFunction &CGF, Stmt *S) { 197524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir CGF.EmitStmt(S); 198524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir } 199524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir 200524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir /// \brief Get the name of the capture helper. 201524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir virtual StringRef getHelperName() const { return "__captured_stmt"; } 202524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir 203524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir private: 204524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir /// \brief The kind of captured statement being generated. 205524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir CapturedRegionKind Kind; 206524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir 207524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir /// \brief Keep the map between VarDecl and FieldDecl. 208524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir llvm::SmallDenseMap<const VarDecl *, FieldDecl *> CaptureFields; 209524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir 210524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir /// \brief The base address of the captured record, passed in as the first 211524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir /// argument of the parallel region function. 212524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir llvm::Value *ThisValue; 213524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir 214524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir /// \brief Captured 'this' type. 215524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir FieldDecl *CXXThisFieldDecl; 216524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir }; 217524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir CGCapturedStmtInfo *CapturedStmtInfo; 218524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir 219b3198a841e7f356f171f1e11faff014b2deb1eb8Nuno Lopes /// BoundsChecking - Emit run-time bounds checks. Higher values mean 220b3198a841e7f356f171f1e11faff014b2deb1eb8Nuno Lopes /// potentially higher performance penalties. 221b3198a841e7f356f171f1e11faff014b2deb1eb8Nuno Lopes unsigned char BoundsChecking; 222b3198a841e7f356f171f1e11faff014b2deb1eb8Nuno Lopes 223d6396a681c9acbe56bc41bbc2bed2db45755bcd7Richard Smith /// \brief Whether any type-checking sanitizers are enabled. If \c false, 224d6396a681c9acbe56bc41bbc2bed2db45755bcd7Richard Smith /// calls to EmitTypeCheck can be skipped. 225d6396a681c9acbe56bc41bbc2bed2db45755bcd7Richard Smith bool SanitizePerformTypeCheck; 2269cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 2274f45bc099f2665bc6e4bcbb169aa452390dbf3feWill Dietz /// \brief Sanitizer options to use for this function. 2284f45bc099f2665bc6e4bcbb169aa452390dbf3feWill Dietz const SanitizerOptions *SanOpts; 2294f45bc099f2665bc6e4bcbb169aa452390dbf3feWill Dietz 230f85e193739c953358c865005855253af4f68a497John McCall /// In ARC, whether we should autorelease the return value. 231f85e193739c953358c865005855253af4f68a497John McCall bool AutoreleaseResult; 232f85e193739c953358c865005855253af4f68a497John McCall 233d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall const CodeGen::CGBlockInfo *BlockInfo; 234d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall llvm::Value *BlockPointer; 235d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall 236cec5ebd4a6a89a7023d04cec728fd340b541ed61Eli Friedman llvm::DenseMap<const VarDecl *, FieldDecl *> LambdaCaptureFields; 237cec5ebd4a6a89a7023d04cec728fd340b541ed61Eli Friedman FieldDecl *LambdaThisCaptureField; 238cec5ebd4a6a89a7023d04cec728fd340b541ed61Eli Friedman 2393d91bbcdab155181556969cad6ec97014405acedDouglas Gregor /// \brief A mapping from NRVO variables to the flags used to indicate 2403d91bbcdab155181556969cad6ec97014405acedDouglas Gregor /// when the NRVO has been applied to this variable. 2413d91bbcdab155181556969cad6ec97014405acedDouglas Gregor llvm::DenseMap<const VarDecl *, llvm::Value *> NRVOFlags; 2429cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 243f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall EHScopeStack EHStack; 2448a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith llvm::SmallVector<char, 256> LifetimeExtendedCleanupStack; 2458a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith 2468a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith /// Header for data within LifetimeExtendedCleanupStack. 2478a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith struct LifetimeExtendedCleanupHeader { 2488a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith /// The size of the following cleanup object. 2498a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith size_t Size : 29; 2508a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith /// The kind of cleanup to push: a value from the CleanupKind enumeration. 2518a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith unsigned Kind : 3; 2528a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith 2538a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith size_t getSize() const { return Size; } 2548a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith CleanupKind getKind() const { return static_cast<CleanupKind>(Kind); } 2558a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith }; 2560dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 257ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall /// i32s containing the indexes of the cleanup destinations. 258ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall llvm::AllocaInst *NormalCleanupDest; 259ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall 260ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall unsigned NextCleanupDestIndex; 261ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall 2621a343ebbf413e8eae6b2737b2b2d79cbf5765571John McCall /// FirstBlockInfo - The head of a singly-linked-list of block layouts. 2631a343ebbf413e8eae6b2737b2b2d79cbf5765571John McCall CGBlockInfo *FirstBlockInfo; 2641a343ebbf413e8eae6b2737b2b2d79cbf5765571John McCall 265777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall /// EHResumeBlock - Unified block containing a call to llvm.eh.resume. 266777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall llvm::BasicBlock *EHResumeBlock; 267777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall 268285cfd8953d4ca4da613a47a0d691f7234068f8cBill Wendling /// The exception slot. All landing pads write the current exception pointer 269285cfd8953d4ca4da613a47a0d691f7234068f8cBill Wendling /// into this alloca. 270f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::Value *ExceptionSlot; 2710dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 272285cfd8953d4ca4da613a47a0d691f7234068f8cBill Wendling /// The selector slot. Under the MandatoryCleanup model, all landing pads 273285cfd8953d4ca4da613a47a0d691f7234068f8cBill Wendling /// write the current selector value into this alloca. 27493c332a8ba2c193c435b293966d343dab15f555bJohn McCall llvm::AllocaInst *EHSelectorSlot; 27593c332a8ba2c193c435b293966d343dab15f555bJohn McCall 276f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Emits a landing pad for the current EH stack. 277f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *EmitLandingPad(); 2780dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 279f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *getInvokeDestImpl(); 28099533834ba8f3658559f334e68a518ebb6388ceaMike Stump 281150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall template <class T> 282804b807ea918184d6de63bd745e1ff75a9bfc679John McCall typename DominatingValue<T>::saved_type saveValueInCond(T value) { 283804b807ea918184d6de63bd745e1ff75a9bfc679John McCall return DominatingValue<T>::save(*this, value); 284150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 285150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 286f1549f66a8216a78112286e3978cea2c29d6334cJohn McCallpublic: 287f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// ObjCEHValueStack - Stack of Objective-C exception values, used for 288f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// rethrows. 289686775deca8b8685eb90801495880e3abdd844c2Chris Lattner SmallVector<llvm::Value*, 8> ObjCEHValueStack; 290bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson 291d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall /// A class controlling the emission of a finally block. 292d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall class FinallyInfo { 293d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall /// Where the catchall's edge through the cleanup should go. 294d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall JumpDest RethrowDest; 295d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall 296d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall /// A function to call to enter the catch. 297d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall llvm::Constant *BeginCatchFn; 298d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall 299d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall /// An i1 variable indicating whether or not the @finally is 300d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall /// running for an exception. 301d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall llvm::AllocaInst *ForEHVar; 302d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump 303d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall /// An i8* variable into which the exception pointer to rethrow 304d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall /// has been saved. 305d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall llvm::AllocaInst *SavedExnVar; 306d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall 307d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall public: 308d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall void enter(CodeGenFunction &CGF, const Stmt *Finally, 309d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall llvm::Constant *beginCatchFn, llvm::Constant *endCatchFn, 310d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall llvm::Constant *rethrowFn); 311d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall void exit(CodeGenFunction &CGF); 312d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall }; 313f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 314150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// pushFullExprCleanup - Push a cleanup to be run at the end of the 315150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// current full-expression. Safe against the possibility that 316150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// we're currently inside a conditionally-evaluated expression. 3173ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall template <class T, class A0> 3183ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall void pushFullExprCleanup(CleanupKind kind, A0 a0) { 3193ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall // If we're not in a conditional branch, or if none of the 3203ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall // arguments requires saving, then use the unconditional cleanup. 321c4a1a8450a3613ef256a71b9d8305b41f79eef50John McCall if (!isInConditionalBranch()) 322c4a1a8450a3613ef256a71b9d8305b41f79eef50John McCall return EHStack.pushCleanup<T>(kind, a0); 3233ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall 324804b807ea918184d6de63bd745e1ff75a9bfc679John McCall typename DominatingValue<A0>::saved_type a0_saved = saveValueInCond(a0); 3253ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall 3263ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall typedef EHScopeStack::ConditionalCleanup1<T, A0> CleanupType; 3273ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall EHStack.pushCleanup<CleanupType>(kind, a0_saved); 3283ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall initFullExprCleanup(); 3293ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall } 3303ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall 3313ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall /// pushFullExprCleanup - Push a cleanup to be run at the end of the 3323ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall /// current full-expression. Safe against the possibility that 3333ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall /// we're currently inside a conditionally-evaluated expression. 334150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall template <class T, class A0, class A1> 335150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall void pushFullExprCleanup(CleanupKind kind, A0 a0, A1 a1) { 336150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall // If we're not in a conditional branch, or if none of the 337150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall // arguments requires saving, then use the unconditional cleanup. 338c4a1a8450a3613ef256a71b9d8305b41f79eef50John McCall if (!isInConditionalBranch()) 339c4a1a8450a3613ef256a71b9d8305b41f79eef50John McCall return EHStack.pushCleanup<T>(kind, a0, a1); 340150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 341804b807ea918184d6de63bd745e1ff75a9bfc679John McCall typename DominatingValue<A0>::saved_type a0_saved = saveValueInCond(a0); 342804b807ea918184d6de63bd745e1ff75a9bfc679John McCall typename DominatingValue<A1>::saved_type a1_saved = saveValueInCond(a1); 343150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 344150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall typedef EHScopeStack::ConditionalCleanup2<T, A0, A1> CleanupType; 3453ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall EHStack.pushCleanup<CleanupType>(kind, a0_saved, a1_saved); 3463ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall initFullExprCleanup(); 347150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 348150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 349d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor /// pushFullExprCleanup - Push a cleanup to be run at the end of the 350d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor /// current full-expression. Safe against the possibility that 351d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor /// we're currently inside a conditionally-evaluated expression. 352d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor template <class T, class A0, class A1, class A2> 353d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor void pushFullExprCleanup(CleanupKind kind, A0 a0, A1 a1, A2 a2) { 354d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor // If we're not in a conditional branch, or if none of the 355d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor // arguments requires saving, then use the unconditional cleanup. 356d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor if (!isInConditionalBranch()) { 357c4a1a8450a3613ef256a71b9d8305b41f79eef50John McCall return EHStack.pushCleanup<T>(kind, a0, a1, a2); 358d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor } 359d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor 360d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor typename DominatingValue<A0>::saved_type a0_saved = saveValueInCond(a0); 361d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor typename DominatingValue<A1>::saved_type a1_saved = saveValueInCond(a1); 362d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor typename DominatingValue<A2>::saved_type a2_saved = saveValueInCond(a2); 363d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor 364d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor typedef EHScopeStack::ConditionalCleanup3<T, A0, A1, A2> CleanupType; 365d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor EHStack.pushCleanup<CleanupType>(kind, a0_saved, a1_saved, a2_saved); 366d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor initFullExprCleanup(); 367d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor } 368d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor 3699928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall /// pushFullExprCleanup - Push a cleanup to be run at the end of the 3709928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall /// current full-expression. Safe against the possibility that 3719928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall /// we're currently inside a conditionally-evaluated expression. 3729928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall template <class T, class A0, class A1, class A2, class A3> 3739928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall void pushFullExprCleanup(CleanupKind kind, A0 a0, A1 a1, A2 a2, A3 a3) { 3749928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall // If we're not in a conditional branch, or if none of the 3759928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall // arguments requires saving, then use the unconditional cleanup. 3769928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall if (!isInConditionalBranch()) { 3779928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall return EHStack.pushCleanup<T>(kind, a0, a1, a2, a3); 3789928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall } 3799928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall 3809928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall typename DominatingValue<A0>::saved_type a0_saved = saveValueInCond(a0); 3819928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall typename DominatingValue<A1>::saved_type a1_saved = saveValueInCond(a1); 3829928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall typename DominatingValue<A2>::saved_type a2_saved = saveValueInCond(a2); 3839928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall typename DominatingValue<A3>::saved_type a3_saved = saveValueInCond(a3); 3849928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall 3859928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall typedef EHScopeStack::ConditionalCleanup4<T, A0, A1, A2, A3> CleanupType; 3869928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall EHStack.pushCleanup<CleanupType>(kind, a0_saved, a1_saved, 3879928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall a2_saved, a3_saved); 3889928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall initFullExprCleanup(); 3899928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall } 3909928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall 3918a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith /// \brief Queue a cleanup to be pushed after finishing the current 3928a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith /// full-expression. 3938a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith template <class T, class A0, class A1, class A2, class A3> 3948a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith void pushCleanupAfterFullExpr(CleanupKind Kind, A0 a0, A1 a1, A2 a2, A3 a3) { 3958a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith assert(!isInConditionalBranch() && "can't defer conditional cleanup"); 3968a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith 3978a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith LifetimeExtendedCleanupHeader Header = { sizeof(T), Kind }; 3988a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith 3998a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith size_t OldSize = LifetimeExtendedCleanupStack.size(); 4008a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith LifetimeExtendedCleanupStack.resize( 4018a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith LifetimeExtendedCleanupStack.size() + sizeof(Header) + Header.Size); 4028a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith 4038a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith char *Buffer = &LifetimeExtendedCleanupStack[OldSize]; 4048a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith new (Buffer) LifetimeExtendedCleanupHeader(Header); 4058a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith new (Buffer + sizeof(Header)) T(a0, a1, a2, a3); 4068a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith } 4078a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith 4086f103ba42cb69d50005a977c5ea583984ab63fc4John McCall /// Set up the last cleaup that was pushed as a conditional 4096f103ba42cb69d50005a977c5ea583984ab63fc4John McCall /// full-expression cleanup. 4106f103ba42cb69d50005a977c5ea583984ab63fc4John McCall void initFullExprCleanup(); 4116f103ba42cb69d50005a977c5ea583984ab63fc4John McCall 412f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// PushDestructorCleanup - Push a cleanup to call the 413f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// complete-object destructor of an object of the given type at the 414f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// given address. Does nothing if T is not a C++ class type with a 415f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// non-trivial destructor. 416f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall void PushDestructorCleanup(QualType T, llvm::Value *Addr); 417f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 41881407d404a3fc8d24d0e2a052d85cae183033e2bJohn McCall /// PushDestructorCleanup - Push a cleanup to call the 41981407d404a3fc8d24d0e2a052d85cae183033e2bJohn McCall /// complete-object variant of the given destructor on the object at 42081407d404a3fc8d24d0e2a052d85cae183033e2bJohn McCall /// the given address. 42181407d404a3fc8d24d0e2a052d85cae183033e2bJohn McCall void PushDestructorCleanup(const CXXDestructorDecl *Dtor, 42281407d404a3fc8d24d0e2a052d85cae183033e2bJohn McCall llvm::Value *Addr); 42381407d404a3fc8d24d0e2a052d85cae183033e2bJohn McCall 424f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// PopCleanupBlock - Will pop the cleanup entry on the stack and 425f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// process all branch fixups. 4261c3db769249a633108dc320da87c48a432e2bcc1Adrian Prantl void PopCleanupBlock(bool FallThroughIsBranchThrough = false); 427f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 4287d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// DeactivateCleanupBlock - Deactivates the given cleanup block. 4297d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// The block cannot be reactivated. Pops it if it's the top of the 4307d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// stack. 4316f103ba42cb69d50005a977c5ea583984ab63fc4John McCall /// 4326f103ba42cb69d50005a977c5ea583984ab63fc4John McCall /// \param DominatingIP - An instruction which is known to 4336f103ba42cb69d50005a977c5ea583984ab63fc4John McCall /// dominate the current IP (if set) and which lies along 4346f103ba42cb69d50005a977c5ea583984ab63fc4John McCall /// all paths of execution between the current IP and the 4356f103ba42cb69d50005a977c5ea583984ab63fc4John McCall /// the point at which the cleanup comes into scope. 4366f103ba42cb69d50005a977c5ea583984ab63fc4John McCall void DeactivateCleanupBlock(EHScopeStack::stable_iterator Cleanup, 4376f103ba42cb69d50005a977c5ea583984ab63fc4John McCall llvm::Instruction *DominatingIP); 4387d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall 4397d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// ActivateCleanupBlock - Activates an initially-inactive cleanup. 4407d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// Cannot be used to resurrect a deactivated cleanup. 4416f103ba42cb69d50005a977c5ea583984ab63fc4John McCall /// 4426f103ba42cb69d50005a977c5ea583984ab63fc4John McCall /// \param DominatingIP - An instruction which is known to 4436f103ba42cb69d50005a977c5ea583984ab63fc4John McCall /// dominate the current IP (if set) and which lies along 4446f103ba42cb69d50005a977c5ea583984ab63fc4John McCall /// all paths of execution between the current IP and the 4456f103ba42cb69d50005a977c5ea583984ab63fc4John McCall /// the point at which the cleanup comes into scope. 4466f103ba42cb69d50005a977c5ea583984ab63fc4John McCall void ActivateCleanupBlock(EHScopeStack::stable_iterator Cleanup, 4476f103ba42cb69d50005a977c5ea583984ab63fc4John McCall llvm::Instruction *DominatingIP); 448cd2d2b7814e0104ed41a8da159a06a8ca77b70d8John McCall 449f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// \brief Enters a new scope for capturing cleanups, all of which 450f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// will be executed once the scope is exited. 451f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall class RunCleanupsScope { 452f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall EHScopeStack::stable_iterator CleanupStackDepth; 4538a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith size_t LifetimeExtendedCleanupStackSize; 45401234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor bool OldDidCallStackSave; 455ed383135bcffdb8849418896b742fbca7fa2b787John McCall protected: 4565656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor bool PerformCleanup; 457ed383135bcffdb8849418896b742fbca7fa2b787John McCall private: 45801234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor 459f56faa01936b9cf909623d7f06e3c2569ca4a78eDmitri Gribenko RunCleanupsScope(const RunCleanupsScope &) LLVM_DELETED_FUNCTION; 460f56faa01936b9cf909623d7f06e3c2569ca4a78eDmitri Gribenko void operator=(const RunCleanupsScope &) LLVM_DELETED_FUNCTION; 46101234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor 462c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher protected: 463c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher CodeGenFunction& CGF; 4644f45bc099f2665bc6e4bcbb169aa452390dbf3feWill Dietz 46501234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor public: 46601234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor /// \brief Enter a new cleanup scope. 4679cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer explicit RunCleanupsScope(CodeGenFunction &CGF) 468c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher : PerformCleanup(true), CGF(CGF) 4695656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor { 470f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall CleanupStackDepth = CGF.EHStack.stable_begin(); 4718a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith LifetimeExtendedCleanupStackSize = 4728a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith CGF.LifetimeExtendedCleanupStack.size(); 47301234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor OldDidCallStackSave = CGF.DidCallStackSave; 4744ada2ca7d82dab68d3646f3eb6dcdfee072e8ea4Argyrios Kyrtzidis CGF.DidCallStackSave = false; 47501234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor } 47601234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor 47701234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor /// \brief Exit this cleanup scope, emitting any accumulated 47801234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor /// cleanups. 479f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall ~RunCleanupsScope() { 4805656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor if (PerformCleanup) { 4815656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor CGF.DidCallStackSave = OldDidCallStackSave; 4828a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith CGF.PopCleanupBlocks(CleanupStackDepth, 4838a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith LifetimeExtendedCleanupStackSize); 4845656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor } 4855656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor } 4865656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor 4875656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor /// \brief Determine whether this scope requires any cleanups. 4885656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor bool requiresCleanups() const { 489f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return CGF.EHStack.stable_begin() != CleanupStackDepth; 4905656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor } 4915656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor 4925656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor /// \brief Force the emission of cleanups now, instead of waiting 4935656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor /// until this object is destroyed. 4945656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor void ForceCleanup() { 4955656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor assert(PerformCleanup && "Already forced cleanup"); 49601234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor CGF.DidCallStackSave = OldDidCallStackSave; 4978a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith CGF.PopCleanupBlocks(CleanupStackDepth, 4988a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith LifetimeExtendedCleanupStackSize); 4995656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor PerformCleanup = false; 50001234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor } 50101234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor }; 50201234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor 503c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher class LexicalScope: protected RunCleanupsScope { 504c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher SourceRange Range; 505495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem SmallVector<const LabelDecl*, 4> Labels; 506495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem LexicalScope *ParentScope; 507c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher 508f56faa01936b9cf909623d7f06e3c2569ca4a78eDmitri Gribenko LexicalScope(const LexicalScope &) LLVM_DELETED_FUNCTION; 509f56faa01936b9cf909623d7f06e3c2569ca4a78eDmitri Gribenko void operator=(const LexicalScope &) LLVM_DELETED_FUNCTION; 510c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher 511c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher public: 512c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher /// \brief Enter a new cleanup scope. 513c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher explicit LexicalScope(CodeGenFunction &CGF, SourceRange Range) 514495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem : RunCleanupsScope(CGF), Range(Range), ParentScope(CGF.CurLexicalScope) { 515495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem CGF.CurLexicalScope = this; 516c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher if (CGDebugInfo *DI = CGF.getDebugInfo()) 517c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher DI->EmitLexicalBlockStart(CGF.Builder, Range.getBegin()); 518c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher } 519c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher 520495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem void addLabel(const LabelDecl *label) { 521495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem assert(PerformCleanup && "adding label to dead scope?"); 522495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem Labels.push_back(label); 523495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem } 524495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem 525c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher /// \brief Exit this cleanup scope, emitting any accumulated 526c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher /// cleanups. 527c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher ~LexicalScope() { 528efb72adbae0c253fc2fd9127fb3e1c36cb1b8d93Adrian Prantl if (CGDebugInfo *DI = CGF.getDebugInfo()) 529efb72adbae0c253fc2fd9127fb3e1c36cb1b8d93Adrian Prantl DI->EmitLexicalBlockEnd(CGF.Builder, Range.getEnd()); 530efb72adbae0c253fc2fd9127fb3e1c36cb1b8d93Adrian Prantl 531495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem // If we should perform a cleanup, force them now. Note that 532495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem // this ends the cleanup scope before rescoping any labels. 533495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem if (PerformCleanup) ForceCleanup(); 534c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher } 535c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher 536c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher /// \brief Force the emission of cleanups now, instead of waiting 537c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher /// until this object is destroyed. 538c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher void ForceCleanup() { 539efb72adbae0c253fc2fd9127fb3e1c36cb1b8d93Adrian Prantl CGF.CurLexicalScope = ParentScope; 540c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher RunCleanupsScope::ForceCleanup(); 541ed383135bcffdb8849418896b742fbca7fa2b787John McCall 542495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem if (!Labels.empty()) 543495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem rescopeLabels(); 544c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher } 545495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem 546495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem void rescopeLabels(); 547c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher }; 548c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher 54944ec82b4a1597802f5bf17721481b8c265bc8dc5Anders Carlsson 5508a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith /// \brief Takes the old cleanup stack size and emits the cleanup blocks 5518a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith /// that have been added. 5521c3db769249a633108dc320da87c48a432e2bcc1Adrian Prantl void PopCleanupBlocks(EHScopeStack::stable_iterator OldCleanupStackSize); 55344ec82b4a1597802f5bf17721481b8c265bc8dc5Anders Carlsson 5548a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith /// \brief Takes the old cleanup stack size and emits the cleanup blocks 5558a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith /// that have been added, then adds all lifetime-extended cleanups from 5568a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith /// the given position to the stack. 5578a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith void PopCleanupBlocks(EHScopeStack::stable_iterator OldCleanupStackSize, 5588a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith size_t OldLifetimeExtendedStackSize); 5598a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith 560ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall void ResolveBranchFixups(llvm::BasicBlock *Target); 561ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall 562f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// The given basic block lies in the current EH scope, but may be a 563f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// target of a potentially scope-crossing jump; get a stable handle 564f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// to which we can perform this jump later. 565ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall JumpDest getJumpDestInCurrentScope(llvm::BasicBlock *Target) { 566413e67778d593215d2f2161a4e712c8568f1ddd0John McCall return JumpDest(Target, 567413e67778d593215d2f2161a4e712c8568f1ddd0John McCall EHStack.getInnermostNormalCleanup(), 568413e67778d593215d2f2161a4e712c8568f1ddd0John McCall NextCleanupDestIndex++); 569f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 570c71c845fe77ee1f891d60232ec320912d88557eeAnders Carlsson 571f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// The given basic block lies in the current EH scope, but may be a 572f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// target of a potentially scope-crossing jump; get a stable handle 573f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// to which we can perform this jump later. 574686775deca8b8685eb90801495880e3abdd844c2Chris Lattner JumpDest getJumpDestInCurrentScope(StringRef Name = StringRef()) { 575ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall return getJumpDestInCurrentScope(createBasicBlock(Name)); 576f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 577f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 578f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// EmitBranchThroughCleanup - Emit a branch from the current insert 579f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// block through the normal cleanup handling code (if any) and then 580f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// on to \arg Dest. 581f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall void EmitBranchThroughCleanup(JumpDest Dest); 582b11f9198111796ada02b57f62cdea92134fde9f7Chris Lattner 583b11f9198111796ada02b57f62cdea92134fde9f7Chris Lattner /// isObviouslyBranchWithoutCleanups - Return true if a branch to the 584b11f9198111796ada02b57f62cdea92134fde9f7Chris Lattner /// specified destination obviously has no cleanups to run. 'false' is always 585b11f9198111796ada02b57f62cdea92134fde9f7Chris Lattner /// a conservatively correct answer for this method. 586b11f9198111796ada02b57f62cdea92134fde9f7Chris Lattner bool isObviouslyBranchWithoutCleanups(JumpDest Dest) const; 587f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 588777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall /// popCatchScope - Pops the catch scope at the top of the EHScope 589777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall /// stack, emitting any required code (other than the catch handlers 590777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall /// themselves). 591777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall void popCatchScope(); 592ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall 593c686004145b1f4dbeb38173a0886ba7040ae0089David Chisnall llvm::BasicBlock *getEHResumeBlock(bool isCleanup); 594777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall llvm::BasicBlock *getEHDispatchBlock(EHScopeStack::stable_iterator scope); 5950dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 596150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// An object to manage conditionally-evaluated expressions. 597150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall class ConditionalEvaluation { 598150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall llvm::BasicBlock *StartBB; 5991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 600150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall public: 601150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall ConditionalEvaluation(CodeGenFunction &CGF) 602150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall : StartBB(CGF.Builder.GetInsertBlock()) {} 6039cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 604150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall void begin(CodeGenFunction &CGF) { 605150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall assert(CGF.OutermostConditional != this); 606150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall if (!CGF.OutermostConditional) 607150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall CGF.OutermostConditional = this; 608150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 609150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 610150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall void end(CodeGenFunction &CGF) { 611150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall assert(CGF.OutermostConditional != 0); 612150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall if (CGF.OutermostConditional == this) 613150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall CGF.OutermostConditional = 0; 614150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 615150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 616150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// Returns a block which will be executed prior to each 617150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// evaluation of the conditional code. 618150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall llvm::BasicBlock *getStartingBlock() const { 619150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall return StartBB; 620150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 621150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall }; 6221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6233019c444c672938c57f5573840071ecd73425ee7John McCall /// isInConditionalBranch - Return true if we're currently emitting 6243019c444c672938c57f5573840071ecd73425ee7John McCall /// one branch or the other of a conditional expression. 625150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall bool isInConditionalBranch() const { return OutermostConditional != 0; } 626150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 6276f103ba42cb69d50005a977c5ea583984ab63fc4John McCall void setBeforeOutermostConditional(llvm::Value *value, llvm::Value *addr) { 6286f103ba42cb69d50005a977c5ea583984ab63fc4John McCall assert(isInConditionalBranch()); 6296f103ba42cb69d50005a977c5ea583984ab63fc4John McCall llvm::BasicBlock *block = OutermostConditional->getStartingBlock(); 6306f103ba42cb69d50005a977c5ea583984ab63fc4John McCall new llvm::StoreInst(value, addr, &block->back()); 6316f103ba42cb69d50005a977c5ea583984ab63fc4John McCall } 6326f103ba42cb69d50005a977c5ea583984ab63fc4John McCall 633150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// An RAII object to record that we're evaluating a statement 634150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// expression. 635150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall class StmtExprEvaluation { 636150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall CodeGenFunction &CGF; 637150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 638150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// We have to save the outermost conditional: cleanups in a 639150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// statement expression aren't conditional just because the 640150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// StmtExpr is. 641150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall ConditionalEvaluation *SavedOutermostConditional; 642150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 643150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall public: 644150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall StmtExprEvaluation(CodeGenFunction &CGF) 645150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall : CGF(CGF), SavedOutermostConditional(CGF.OutermostConditional) { 646150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall CGF.OutermostConditional = 0; 647150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 648150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 649150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall ~StmtExprEvaluation() { 650150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall CGF.OutermostConditional = SavedOutermostConditional; 651150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall CGF.EnsureInsertPoint(); 652150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 653150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall }; 654e996ffd240f20a1048179d7727a6ee3227261921John McCall 65556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// An object which temporarily prevents a value from being 65656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// destroyed by aggressive peephole optimizations that assume that 65756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// all uses of a value have been realized in the IR. 65856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall class PeepholeProtection { 65956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall llvm::Instruction *Inst; 66056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall friend class CodeGenFunction; 66156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 66256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall public: 66356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall PeepholeProtection() : Inst(0) {} 6644b9c2d235fb9449e249d74f48ecfec601650de93John McCall }; 66556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 6664b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// A non-RAII class containing all the information about a bound 6674b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// opaque value. OpaqueValueMapping, below, is a RAII wrapper for 6684b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// this which makes individual mappings very simple; using this 6694b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// class directly is useful when you have a variable number of 6704b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// opaque values or don't want the RAII functionality for some 6714b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// reason. 6724b9c2d235fb9449e249d74f48ecfec601650de93John McCall class OpaqueValueMappingData { 673e996ffd240f20a1048179d7727a6ee3227261921John McCall const OpaqueValueExpr *OpaqueValue; 67456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall bool BoundLValue; 67556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall CodeGenFunction::PeepholeProtection Protection; 676e996ffd240f20a1048179d7727a6ee3227261921John McCall 6774b9c2d235fb9449e249d74f48ecfec601650de93John McCall OpaqueValueMappingData(const OpaqueValueExpr *ov, 6784b9c2d235fb9449e249d74f48ecfec601650de93John McCall bool boundLValue) 6794b9c2d235fb9449e249d74f48ecfec601650de93John McCall : OpaqueValue(ov), BoundLValue(boundLValue) {} 680e996ffd240f20a1048179d7727a6ee3227261921John McCall public: 6814b9c2d235fb9449e249d74f48ecfec601650de93John McCall OpaqueValueMappingData() : OpaqueValue(0) {} 6824b9c2d235fb9449e249d74f48ecfec601650de93John McCall 68356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static bool shouldBindAsLValue(const Expr *expr) { 684a5493f885095bd63d525a7035ad1c224de3ae5f2John McCall // gl-values should be bound as l-values for obvious reasons. 685a5493f885095bd63d525a7035ad1c224de3ae5f2John McCall // Records should be bound as l-values because IR generation 686a5493f885095bd63d525a7035ad1c224de3ae5f2John McCall // always keeps them in memory. Expressions of function type 687a5493f885095bd63d525a7035ad1c224de3ae5f2John McCall // act exactly like l-values but are formally required to be 688a5493f885095bd63d525a7035ad1c224de3ae5f2John McCall // r-values in C. 689a5493f885095bd63d525a7035ad1c224de3ae5f2John McCall return expr->isGLValue() || 690a5493f885095bd63d525a7035ad1c224de3ae5f2John McCall expr->getType()->isRecordType() || 691a5493f885095bd63d525a7035ad1c224de3ae5f2John McCall expr->getType()->isFunctionType(); 69256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 69356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 6944b9c2d235fb9449e249d74f48ecfec601650de93John McCall static OpaqueValueMappingData bind(CodeGenFunction &CGF, 6954b9c2d235fb9449e249d74f48ecfec601650de93John McCall const OpaqueValueExpr *ov, 6964b9c2d235fb9449e249d74f48ecfec601650de93John McCall const Expr *e) { 6974b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (shouldBindAsLValue(ov)) 6984b9c2d235fb9449e249d74f48ecfec601650de93John McCall return bind(CGF, ov, CGF.EmitLValue(e)); 6994b9c2d235fb9449e249d74f48ecfec601650de93John McCall return bind(CGF, ov, CGF.EmitAnyExpr(e)); 7004b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 7014b9c2d235fb9449e249d74f48ecfec601650de93John McCall 7024b9c2d235fb9449e249d74f48ecfec601650de93John McCall static OpaqueValueMappingData bind(CodeGenFunction &CGF, 7034b9c2d235fb9449e249d74f48ecfec601650de93John McCall const OpaqueValueExpr *ov, 7044b9c2d235fb9449e249d74f48ecfec601650de93John McCall const LValue &lv) { 7054b9c2d235fb9449e249d74f48ecfec601650de93John McCall assert(shouldBindAsLValue(ov)); 7064b9c2d235fb9449e249d74f48ecfec601650de93John McCall CGF.OpaqueLValues.insert(std::make_pair(ov, lv)); 7074b9c2d235fb9449e249d74f48ecfec601650de93John McCall return OpaqueValueMappingData(ov, true); 7084b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 7094b9c2d235fb9449e249d74f48ecfec601650de93John McCall 7104b9c2d235fb9449e249d74f48ecfec601650de93John McCall static OpaqueValueMappingData bind(CodeGenFunction &CGF, 7114b9c2d235fb9449e249d74f48ecfec601650de93John McCall const OpaqueValueExpr *ov, 7124b9c2d235fb9449e249d74f48ecfec601650de93John McCall const RValue &rv) { 7134b9c2d235fb9449e249d74f48ecfec601650de93John McCall assert(!shouldBindAsLValue(ov)); 7144b9c2d235fb9449e249d74f48ecfec601650de93John McCall CGF.OpaqueRValues.insert(std::make_pair(ov, rv)); 7154b9c2d235fb9449e249d74f48ecfec601650de93John McCall 7164b9c2d235fb9449e249d74f48ecfec601650de93John McCall OpaqueValueMappingData data(ov, false); 7174b9c2d235fb9449e249d74f48ecfec601650de93John McCall 7184b9c2d235fb9449e249d74f48ecfec601650de93John McCall // Work around an extremely aggressive peephole optimization in 7194b9c2d235fb9449e249d74f48ecfec601650de93John McCall // EmitScalarConversion which assumes that all other uses of a 7204b9c2d235fb9449e249d74f48ecfec601650de93John McCall // value are extant. 7214b9c2d235fb9449e249d74f48ecfec601650de93John McCall data.Protection = CGF.protectFromPeepholes(rv); 7224b9c2d235fb9449e249d74f48ecfec601650de93John McCall 7234b9c2d235fb9449e249d74f48ecfec601650de93John McCall return data; 7244b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 7254b9c2d235fb9449e249d74f48ecfec601650de93John McCall 7264b9c2d235fb9449e249d74f48ecfec601650de93John McCall bool isValid() const { return OpaqueValue != 0; } 7274b9c2d235fb9449e249d74f48ecfec601650de93John McCall void clear() { OpaqueValue = 0; } 7284b9c2d235fb9449e249d74f48ecfec601650de93John McCall 7294b9c2d235fb9449e249d74f48ecfec601650de93John McCall void unbind(CodeGenFunction &CGF) { 7304b9c2d235fb9449e249d74f48ecfec601650de93John McCall assert(OpaqueValue && "no data to unbind!"); 7314b9c2d235fb9449e249d74f48ecfec601650de93John McCall 7324b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (BoundLValue) { 7334b9c2d235fb9449e249d74f48ecfec601650de93John McCall CGF.OpaqueLValues.erase(OpaqueValue); 7344b9c2d235fb9449e249d74f48ecfec601650de93John McCall } else { 7354b9c2d235fb9449e249d74f48ecfec601650de93John McCall CGF.OpaqueRValues.erase(OpaqueValue); 7364b9c2d235fb9449e249d74f48ecfec601650de93John McCall CGF.unprotectFromPeepholes(Protection); 7374b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 7384b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 7394b9c2d235fb9449e249d74f48ecfec601650de93John McCall }; 7404b9c2d235fb9449e249d74f48ecfec601650de93John McCall 7414b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// An RAII object to set (and then clear) a mapping for an OpaqueValueExpr. 7424b9c2d235fb9449e249d74f48ecfec601650de93John McCall class OpaqueValueMapping { 7434b9c2d235fb9449e249d74f48ecfec601650de93John McCall CodeGenFunction &CGF; 7444b9c2d235fb9449e249d74f48ecfec601650de93John McCall OpaqueValueMappingData Data; 7454b9c2d235fb9449e249d74f48ecfec601650de93John McCall 7464b9c2d235fb9449e249d74f48ecfec601650de93John McCall public: 7474b9c2d235fb9449e249d74f48ecfec601650de93John McCall static bool shouldBindAsLValue(const Expr *expr) { 7484b9c2d235fb9449e249d74f48ecfec601650de93John McCall return OpaqueValueMappingData::shouldBindAsLValue(expr); 7494b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 7504b9c2d235fb9449e249d74f48ecfec601650de93John McCall 75156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// Build the opaque value mapping for the given conditional 75256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// operator if it's the GNU ?: extension. This is a common 75356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// enough pattern that the convenience operator is really 75456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// helpful. 75556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// 75656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall OpaqueValueMapping(CodeGenFunction &CGF, 75756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall const AbstractConditionalOperator *op) : CGF(CGF) { 7584b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (isa<ConditionalOperator>(op)) 7594b9c2d235fb9449e249d74f48ecfec601650de93John McCall // Leave Data empty. 76056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return; 76156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 76256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall const BinaryConditionalOperator *e = cast<BinaryConditionalOperator>(op); 7634b9c2d235fb9449e249d74f48ecfec601650de93John McCall Data = OpaqueValueMappingData::bind(CGF, e->getOpaqueValue(), 7644b9c2d235fb9449e249d74f48ecfec601650de93John McCall e->getCommon()); 76556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 76656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 767e996ffd240f20a1048179d7727a6ee3227261921John McCall OpaqueValueMapping(CodeGenFunction &CGF, 768e996ffd240f20a1048179d7727a6ee3227261921John McCall const OpaqueValueExpr *opaqueValue, 76956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall LValue lvalue) 7704b9c2d235fb9449e249d74f48ecfec601650de93John McCall : CGF(CGF), Data(OpaqueValueMappingData::bind(CGF, opaqueValue, lvalue)) { 77156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 77256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 77356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall OpaqueValueMapping(CodeGenFunction &CGF, 77456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall const OpaqueValueExpr *opaqueValue, 77556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall RValue rvalue) 7764b9c2d235fb9449e249d74f48ecfec601650de93John McCall : CGF(CGF), Data(OpaqueValueMappingData::bind(CGF, opaqueValue, rvalue)) { 777e996ffd240f20a1048179d7727a6ee3227261921John McCall } 778e996ffd240f20a1048179d7727a6ee3227261921John McCall 779e996ffd240f20a1048179d7727a6ee3227261921John McCall void pop() { 7804b9c2d235fb9449e249d74f48ecfec601650de93John McCall Data.unbind(CGF); 7814b9c2d235fb9449e249d74f48ecfec601650de93John McCall Data.clear(); 782e996ffd240f20a1048179d7727a6ee3227261921John McCall } 783e996ffd240f20a1048179d7727a6ee3227261921John McCall 784e996ffd240f20a1048179d7727a6ee3227261921John McCall ~OpaqueValueMapping() { 7854b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (Data.isValid()) Data.unbind(CGF); 786e996ffd240f20a1048179d7727a6ee3227261921John McCall } 787e996ffd240f20a1048179d7727a6ee3227261921John McCall }; 788e220455a059d926953befe72857b9525273717efFariborz Jahanian 789e220455a059d926953befe72857b9525273717efFariborz Jahanian /// getByrefValueFieldNumber - Given a declaration, returns the LLVM field 790e220455a059d926953befe72857b9525273717efFariborz Jahanian /// number that holds the value. 791e220455a059d926953befe72857b9525273717efFariborz Jahanian unsigned getByRefValueLLVMField(const ValueDecl *VD) const; 79252a80e19ad688091723a52ad53337767bb0ac684Fariborz Jahanian 79352a80e19ad688091723a52ad53337767bb0ac684Fariborz Jahanian /// BuildBlockByrefAddress - Computes address location of the 79452a80e19ad688091723a52ad53337767bb0ac684Fariborz Jahanian /// variable which is declared as __block. 79552a80e19ad688091723a52ad53337767bb0ac684Fariborz Jahanian llvm::Value *BuildBlockByrefAddress(llvm::Value *BaseAddr, 79652a80e19ad688091723a52ad53337767bb0ac684Fariborz Jahanian const VarDecl *V); 7977f02f721d48772e4eee4fccd8af4f800be1bbc1eChris Lattnerprivate: 798d9becd1846e2c72bf6ad283faa1b048f33dd3afeChris Lattner CGDebugInfo *DebugInfo; 799aa11289f754d220c9c155b68a4f84cdcfcefef6aDevang Patel bool DisableDebugInfo; 80009429b962811f2c0a7a81a1b0a89f96f5878b20cMike Stump 80193c332a8ba2c193c435b293966d343dab15f555bJohn McCall /// DidCallStackSave - Whether llvm.stacksave has been called. Used to avoid 80293c332a8ba2c193c435b293966d343dab15f555bJohn McCall /// calling llvm.stacksave for multiple VLAs in the same scope. 80393c332a8ba2c193c435b293966d343dab15f555bJohn McCall bool DidCallStackSave; 80493c332a8ba2c193c435b293966d343dab15f555bJohn McCall 805f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// IndirectBranch - The first time an indirect goto is seen we create a block 806f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// with an indirect branch. Every time we see the address of a label taken, 807f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// we add the label to the indirect goto. Every subsequent indirect goto is 808f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// codegen'd as a jump to the IndirectBranch's basic block. 809d9becd1846e2c72bf6ad283faa1b048f33dd3afeChris Lattner llvm::IndirectBrInst *IndirectBranch; 8100ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar 8110dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// LocalDeclMap - This keeps track of the LLVM allocas or globals for local C 8120dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// decls. 8136b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall typedef llvm::DenseMap<const Decl*, llvm::Value*> DeclMapTy; 8146b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall DeclMapTy LocalDeclMap; 8155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// LabelMap - This keeps track of the LLVM basic block for each C label. 817ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner llvm::DenseMap<const LabelDecl*, JumpDest> LabelMap; 8180dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 8190dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // BreakContinueStack - This keeps track of where break and continue 820e4b6d342c29d5cb9d311756100df1603810fa892Anders Carlsson // statements should jump to. 821da13870e99fe33934b2122f06528a5063f78ae4cChris Lattner struct BreakContinue { 822f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall BreakContinue(JumpDest Break, JumpDest Continue) 823f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall : BreakBlock(Break), ContinueBlock(Continue) {} 8240dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 825f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall JumpDest BreakBlock; 826f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall JumpDest ContinueBlock; 8270dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump }; 828686775deca8b8685eb90801495880e3abdd844c2Chris Lattner SmallVector<BreakContinue, 8> BreakContinueStack; 82918ccc7776ad6288c5f630dc7967fb99d099c9cd9Daniel Dunbar 830170fd49294b85ab10f820721d99ff9d109c7230dZhongxing Xu /// SwitchInsn - This is nearest current switch instruction. It is null if 8310dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// current context is not in a switch. 83251b09f2c528c8460b5465c676173324e44176d62Devang Patel llvm::SwitchInst *SwitchInsn; 83351b09f2c528c8460b5465c676173324e44176d62Devang Patel 8340dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// CaseRangeBlock - This block holds if condition check for last case 83580fd5f96e6805ac43aab99faabd5b4c8b19551b7Devang Patel /// statement range in current switch instruction. 836c049e4f406a7f7179eba98659044a32508e53289Devang Patel llvm::BasicBlock *CaseRangeBlock; 837c049e4f406a7f7179eba98659044a32508e53289Devang Patel 83856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// OpaqueLValues - Keeps track of the current set of opaque value 839e996ffd240f20a1048179d7727a6ee3227261921John McCall /// expressions. 84056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall llvm::DenseMap<const OpaqueValueExpr *, LValue> OpaqueLValues; 84156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall llvm::DenseMap<const OpaqueValueExpr *, RValue> OpaqueRValues; 842e996ffd240f20a1048179d7727a6ee3227261921John McCall 8430dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // VLASizeMap - This keeps track of the associated size for each VLA type. 844bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman // We track this by the size expression rather than the type itself because 845bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman // in certain situations, like a const qualifier applied to an VLA typedef, 846bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman // multiple VLA types can share the same size expression. 8470dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // FIXME: Maybe this could be a stack of maps that is pushed/popped as we 8480dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // enter/leave scopes. 849bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman llvm::DenseMap<const Expr*, llvm::Value*> VLASizeMap; 8500dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 851f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// A block containing a single 'unreachable' instruction. Created 852f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// lazily by getUnreachableBlock(). 853f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *UnreachableBlock; 8540dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 855d072e59eb6b5e32f93be25f08f212b0ec21d6c5dAdrian Prantl /// Counts of the number return expressions in the function. 856d072e59eb6b5e32f93be25f08f212b0ec21d6c5dAdrian Prantl unsigned NumReturnExprs; 857fa6b079b1231366696f6a497c6a084c73a35c85dAdrian Prantl 858fa6b079b1231366696f6a497c6a084c73a35c85dAdrian Prantl /// Count the number of simple (constant) return expressions in the function. 859fa6b079b1231366696f6a497c6a084c73a35c85dAdrian Prantl unsigned NumSimpleReturnExprs; 860fa6b079b1231366696f6a497c6a084c73a35c85dAdrian Prantl 861d072e59eb6b5e32f93be25f08f212b0ec21d6c5dAdrian Prantl /// The last regular (non-return) debug location (breakpoint) in the function. 862d072e59eb6b5e32f93be25f08f212b0ec21d6c5dAdrian Prantl SourceLocation LastStopPoint; 863fa6b079b1231366696f6a497c6a084c73a35c85dAdrian Prantl 864c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smithpublic: 865c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith /// A scope within which we are constructing the fields of an object which 866c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith /// might use a CXXDefaultInitExpr. This stashes away a 'this' value to use 867c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith /// if we need to evaluate a CXXDefaultInitExpr within the evaluation. 868c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith class FieldConstructionScope { 869c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith public: 870c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith FieldConstructionScope(CodeGenFunction &CGF, llvm::Value *This) 871c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith : CGF(CGF), OldCXXDefaultInitExprThis(CGF.CXXDefaultInitExprThis) { 872c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith CGF.CXXDefaultInitExprThis = This; 873c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith } 874c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith ~FieldConstructionScope() { 875c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith CGF.CXXDefaultInitExprThis = OldCXXDefaultInitExprThis; 876c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith } 877c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith 878c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith private: 879c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith CodeGenFunction &CGF; 880c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith llvm::Value *OldCXXDefaultInitExprThis; 881c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith }; 882c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith 883c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith /// The scope of a CXXDefaultInitExpr. Within this scope, the value of 'this' 884c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith /// is overridden to be the object under construction. 885c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith class CXXDefaultInitExprScope { 886c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith public: 887c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith CXXDefaultInitExprScope(CodeGenFunction &CGF) 888c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith : CGF(CGF), OldCXXThisValue(CGF.CXXThisValue) { 889c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith CGF.CXXThisValue = CGF.CXXDefaultInitExprThis; 890c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith } 891c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith ~CXXDefaultInitExprScope() { 892c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith CGF.CXXThisValue = OldCXXThisValue; 893c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith } 894c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith 895c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith public: 896c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith CodeGenFunction &CGF; 897c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith llvm::Value *OldCXXThisValue; 898c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith }; 899c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith 900c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smithprivate: 901f6c56e2323c3f973253805a2f35629f3253ebed4Anders Carlsson /// CXXThisDecl - When generating code for a C++ member function, 902f6c56e2323c3f973253805a2f35629f3253ebed4Anders Carlsson /// this will hold the implicit 'this' declaration. 903cec5ebd4a6a89a7023d04cec728fd340b541ed61Eli Friedman ImplicitParamDecl *CXXABIThisDecl; 904cec5ebd4a6a89a7023d04cec728fd340b541ed61Eli Friedman llvm::Value *CXXABIThisValue; 9052504941793b549323f9d29c62507cf21d865fadeJohn McCall llvm::Value *CXXThisValue; 9061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 907c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith /// The value of 'this' to use when evaluating CXXDefaultInitExprs within 908c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith /// this expression. 909c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith llvm::Value *CXXDefaultInitExprThis; 910c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith 91159660c21178b6af518bd4b564e032d5c9cc218cbTimur Iskhodzhanov /// CXXStructorImplicitParamDecl - When generating code for a constructor or 91259660c21178b6af518bd4b564e032d5c9cc218cbTimur Iskhodzhanov /// destructor, this will hold the implicit argument (e.g. VTT). 91359660c21178b6af518bd4b564e032d5c9cc218cbTimur Iskhodzhanov ImplicitParamDecl *CXXStructorImplicitParamDecl; 91459660c21178b6af518bd4b564e032d5c9cc218cbTimur Iskhodzhanov llvm::Value *CXXStructorImplicitParamValue; 9159cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 916150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// OutermostConditional - Points to the outermost active 917150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// conditional control. This is used so that we know if a 918150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// temporary should be destroyed conditionally. 919150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall ConditionalEvaluation *OutermostConditional; 9201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 921495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem /// The current lexical scope. 922495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem LexicalScope *CurLexicalScope; 9237dfa4079f4b37507048b19bfc693d3b015d9dd11Anders Carlsson 9241c3db769249a633108dc320da87c48a432e2bcc1Adrian Prantl /// The current source location that should be used for exception 9251c3db769249a633108dc320da87c48a432e2bcc1Adrian Prantl /// handling code. 9261c3db769249a633108dc320da87c48a432e2bcc1Adrian Prantl SourceLocation CurEHLocation; 9271c3db769249a633108dc320da87c48a432e2bcc1Adrian Prantl 9287dfa4079f4b37507048b19bfc693d3b015d9dd11Anders Carlsson /// ByrefValueInfoMap - For each __block variable, contains a pair of the LLVM 9297dfa4079f4b37507048b19bfc693d3b015d9dd11Anders Carlsson /// type as well as the field number that contains the actual data. 9302acc6e3feda5e4f7d9009bdcf8b1cd777fecfe2dChris Lattner llvm::DenseMap<const ValueDecl *, std::pair<llvm::Type *, 9317dfa4079f4b37507048b19bfc693d3b015d9dd11Anders Carlsson unsigned> > ByRefValueInfo; 9329cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 933f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *TerminateLandingPad; 934182f383db1782af752ecaf607fdff72a8542088bMike Stump llvm::BasicBlock *TerminateHandler; 93583252dcfe61aaebcb6bc117e71dc12968729513fChris Lattner llvm::BasicBlock *TrapBB; 936940670512d7c3d93389bb38a426abcb7ef44271eEli Friedman 9370df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner /// Add a kernel metadata node to the named metadata node 'opencl.kernels'. 9380df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner /// In the kernel metadata node, reference the kernel function and metadata 9390df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner /// nodes for its optional attribute qualifiers (OpenCL 1.1 6.7.2): 94037453b9580e293eef3bd60bd36047a93ac4515b1Joey Gouly /// - A node for the vec_type_hint(<type>) qualifier contains string 94137453b9580e293eef3bd60bd36047a93ac4515b1Joey Gouly /// "vec_type_hint", an undefined value of the <type> data type, 94237453b9580e293eef3bd60bd36047a93ac4515b1Joey Gouly /// and a Boolean that is true if the <type> is integer and signed. 9430df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner /// - A node for the work_group_size_hint(X,Y,Z) qualifier contains string 9440df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner /// "work_group_size_hint", and three 32-bit integers X, Y and Z. 9450df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner /// - A node for the reqd_work_group_size(X,Y,Z) qualifier contains string 9460df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner /// "reqd_work_group_size", and three 32-bit integers X, Y and Z. 9470df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner void EmitOpenCLKernelMetadata(const FunctionDecl *FD, 9480df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner llvm::Function *Fn); 9490df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner 9505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 9514904bf4e84cfb48080270ebaa9005327f18ab0e5Fariborz Jahanian CodeGenFunction(CodeGenModule &cgm, bool suppressNewContext=false); 9521a343ebbf413e8eae6b2737b2b2d79cbf5765571John McCall ~CodeGenFunction(); 9530dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 9541e7fe751466ea82665fd21e9162fd7cc9c5f412dJohn McCall CodeGenTypes &getTypes() const { return CGM.getTypes(); } 955f2aac84709c418189e476ad591848dad50291885John McCall ASTContext &getContext() const { return CGM.getContext(); } 956aa11289f754d220c9c155b68a4f84cdcfcefef6aDevang Patel CGDebugInfo *getDebugInfo() { 957aa11289f754d220c9c155b68a4f84cdcfcefef6aDevang Patel if (DisableDebugInfo) 958aa11289f754d220c9c155b68a4f84cdcfcefef6aDevang Patel return NULL; 959aa11289f754d220c9c155b68a4f84cdcfcefef6aDevang Patel return DebugInfo; 960aa11289f754d220c9c155b68a4f84cdcfcefef6aDevang Patel } 961aa11289f754d220c9c155b68a4f84cdcfcefef6aDevang Patel void disableDebugInfo() { DisableDebugInfo = true; } 962aa11289f754d220c9c155b68a4f84cdcfcefef6aDevang Patel void enableDebugInfo() { DisableDebugInfo = false; } 963aa11289f754d220c9c155b68a4f84cdcfcefef6aDevang Patel 964f85e193739c953358c865005855253af4f68a497John McCall bool shouldUseFusedARCCalls() { 965f85e193739c953358c865005855253af4f68a497John McCall return CGM.getCodeGenOpts().OptimizationLevel == 0; 966f85e193739c953358c865005855253af4f68a497John McCall } 9675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9684e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie const LangOptions &getLangOpts() const { return CGM.getLangOpts(); } 969d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall 970285cfd8953d4ca4da613a47a0d691f7234068f8cBill Wendling /// Returns a pointer to the function's exception object and selector slot, 971285cfd8953d4ca4da613a47a0d691f7234068f8cBill Wendling /// which is assigned in every landing pad. 972f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::Value *getExceptionSlot(); 97393c332a8ba2c193c435b293966d343dab15f555bJohn McCall llvm::Value *getEHSelectorSlot(); 974f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 975ae270598d5c7a9a283d4b3ddce53b151c6e2b182Bill Wendling /// Returns the contents of the function's exception object and selector 976ae270598d5c7a9a283d4b3ddce53b151c6e2b182Bill Wendling /// slots. 977ae270598d5c7a9a283d4b3ddce53b151c6e2b182Bill Wendling llvm::Value *getExceptionFromSlot(); 978ae270598d5c7a9a283d4b3ddce53b151c6e2b182Bill Wendling llvm::Value *getSelectorFromSlot(); 979ae270598d5c7a9a283d4b3ddce53b151c6e2b182Bill Wendling 980ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall llvm::Value *getNormalCleanupDestSlot(); 981ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall 982f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *getUnreachableBlock() { 983f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall if (!UnreachableBlock) { 984f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall UnreachableBlock = createBasicBlock("unreachable"); 985f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall new llvm::UnreachableInst(getLLVMContext(), UnreachableBlock); 986f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 987f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return UnreachableBlock; 988f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 989f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 990f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *getInvokeDest() { 991f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall if (!EHStack.requiresLandingPad()) return 0; 992f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return getInvokeDestImpl(); 993f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 9949834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar 99564aa4b3ec7e62288e2e66c1935487ece995ca94bJohn McCall const TargetInfo &getTarget() const { return Target; } 996d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall llvm::LLVMContext &getLLVMContext() { return CGM.getLLVMContext(); } 99769243825cb5c91ec7207256aa57ae327cfaf8cb2Owen Anderson 9989834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar //===--------------------------------------------------------------------===// 999bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall // Cleanups 1000bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall //===--------------------------------------------------------------------===// 1001bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall 1002bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall typedef void Destroyer(CodeGenFunction &CGF, llvm::Value *addr, QualType ty); 1003bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall 10042673c68aa58e277ebc755b71d81aca618cdedbf9John McCall void pushIrregularPartialArrayCleanup(llvm::Value *arrayBegin, 10052673c68aa58e277ebc755b71d81aca618cdedbf9John McCall llvm::Value *arrayEndPointer, 10062673c68aa58e277ebc755b71d81aca618cdedbf9John McCall QualType elementType, 1007516bbd42e62d709013824d6fb8445a0cfda3129aPeter Collingbourne Destroyer *destroyer); 10082673c68aa58e277ebc755b71d81aca618cdedbf9John McCall void pushRegularPartialArrayCleanup(llvm::Value *arrayBegin, 10092673c68aa58e277ebc755b71d81aca618cdedbf9John McCall llvm::Value *arrayEnd, 10102673c68aa58e277ebc755b71d81aca618cdedbf9John McCall QualType elementType, 1011516bbd42e62d709013824d6fb8445a0cfda3129aPeter Collingbourne Destroyer *destroyer); 1012bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall 10139928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall void pushDestroy(QualType::DestructionKind dtorKind, 10149928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall llvm::Value *addr, QualType type); 1015074cae0861a87bf96d8ea56d02e34839d9ccbd0aJohn McCall void pushEHDestroy(QualType::DestructionKind dtorKind, 1016074cae0861a87bf96d8ea56d02e34839d9ccbd0aJohn McCall llvm::Value *addr, QualType type); 1017bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall void pushDestroy(CleanupKind kind, llvm::Value *addr, QualType type, 1018516bbd42e62d709013824d6fb8445a0cfda3129aPeter Collingbourne Destroyer *destroyer, bool useEHCleanupForArray); 10198a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith void pushLifetimeExtendedDestroy(CleanupKind kind, llvm::Value *addr, 10208a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith QualType type, Destroyer *destroyer, 10218a07cd3f59a0ede54906bdc8ed21724815db27adRichard Smith bool useEHCleanupForArray); 1022516bbd42e62d709013824d6fb8445a0cfda3129aPeter Collingbourne void emitDestroy(llvm::Value *addr, QualType type, Destroyer *destroyer, 10232673c68aa58e277ebc755b71d81aca618cdedbf9John McCall bool useEHCleanupForArray); 1024c7971a9efdf9880448a69aabb5182c3c27eecf6dDavid Blaikie llvm::Function *generateDestroyHelper(llvm::Constant *addr, QualType type, 1025516bbd42e62d709013824d6fb8445a0cfda3129aPeter Collingbourne Destroyer *destroyer, 1026c7971a9efdf9880448a69aabb5182c3c27eecf6dDavid Blaikie bool useEHCleanupForArray, 1027c7971a9efdf9880448a69aabb5182c3c27eecf6dDavid Blaikie const VarDecl *VD); 1028bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall void emitArrayDestroy(llvm::Value *begin, llvm::Value *end, 1029516bbd42e62d709013824d6fb8445a0cfda3129aPeter Collingbourne QualType type, Destroyer *destroyer, 1030fbf780a9d1dbb191fc40c8af967c590e08724b74John McCall bool checkZeroLength, bool useEHCleanup); 1031bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall 1032516bbd42e62d709013824d6fb8445a0cfda3129aPeter Collingbourne Destroyer *getDestroyer(QualType::DestructionKind destructionKind); 10339928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall 1034bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall /// Determines whether an EH cleanup is required to destroy a type 1035bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall /// with the given destruction kind. 1036bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall bool needsEHCleanup(QualType::DestructionKind kind) { 1037bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall switch (kind) { 1038bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall case QualType::DK_none: 1039bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall return false; 1040bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall case QualType::DK_cxx_destructor: 1041bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall case QualType::DK_objc_weak_lifetime: 10424e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie return getLangOpts().Exceptions; 1043bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall case QualType::DK_objc_strong_lifetime: 10444e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie return getLangOpts().Exceptions && 1045bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall CGM.getCodeGenOpts().ObjCAutoRefCountExceptions; 1046bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall } 1047bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall llvm_unreachable("bad destruction kind"); 1048bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall } 1049bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall 10509928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall CleanupKind getCleanupKind(QualType::DestructionKind kind) { 10519928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall return (needsEHCleanup(kind) ? NormalAndEHCleanup : NormalCleanup); 10529928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall } 10539928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall 1054bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall //===--------------------------------------------------------------------===// 10559834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar // Objective-C 10569834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar //===--------------------------------------------------------------------===// 10579834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar 1058391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner void GenerateObjCMethod(const ObjCMethodDecl *OMD); 1059af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 10600dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump void StartObjCMethod(const ObjCMethodDecl *MD, 10618d3f8979e46f9d0b8735566eabe471db0e1e0e53Devang Patel const ObjCContainerDecl *CD, 10628d3f8979e46f9d0b8735566eabe471db0e1e0e53Devang Patel SourceLocation StartLoc); 1063af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 10640dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// GenerateObjCGetter - Synthesize an Objective-C property getter function. 1065fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian void GenerateObjCGetter(ObjCImplementationDecl *IMP, 1066fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian const ObjCPropertyImplDecl *PID); 10671e1f4871535f2cadcbf8c9af8cc48a2213192320John McCall void generateObjCGetterBody(const ObjCImplementationDecl *classImpl, 1068b6e5fe3cae9bf456f084c555c3ecc256f4181cc5Fariborz Jahanian const ObjCPropertyImplDecl *propImpl, 1069490a52b4947381879a47b4251db5fb81cdf5d02bFariborz Jahanian const ObjCMethodDecl *GetterMothodDecl, 1070b6e5fe3cae9bf456f084c555c3ecc256f4181cc5Fariborz Jahanian llvm::Constant *AtomicHelperFn); 10712846b97965e980ad2e7c8d444b82cc21d733a699Fariborz Jahanian 1072109dfc6ca6652f60c55ed0f2631aebf323d0200dFariborz Jahanian void GenerateObjCCtorDtorMethod(ObjCImplementationDecl *IMP, 1073109dfc6ca6652f60c55ed0f2631aebf323d0200dFariborz Jahanian ObjCMethodDecl *MD, bool ctor); 1074af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 10750dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// GenerateObjCSetter - Synthesize an Objective-C property setter function 10760dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// for the given property. 1077fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian void GenerateObjCSetter(ObjCImplementationDecl *IMP, 1078fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian const ObjCPropertyImplDecl *PID); 107971c758d3f4ecc8b511e6ae4a7210486aa994c182John McCall void generateObjCSetterBody(const ObjCImplementationDecl *classImpl, 1080cd93b96bc51c255d104095bc6a6d8eac74a84b1eFariborz Jahanian const ObjCPropertyImplDecl *propImpl, 1081cd93b96bc51c255d104095bc6a6d8eac74a84b1eFariborz Jahanian llvm::Constant *AtomicHelperFn); 10820b2bd47151ee9205ad6c66d1ffb921918106088aFariborz Jahanian bool IndirectObjCSetterArg(const CGFunctionInfo &FI); 108315bd58842adaa4f8cca4e58047ed18e033858d9bFariborz Jahanian bool IvarTypeWithAggrGCObjects(QualType Ty); 1084af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 10854e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump //===--------------------------------------------------------------------===// 10864e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump // Block Bits 10874e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump //===--------------------------------------------------------------------===// 10884e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump 10896b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall llvm::Value *EmitBlockLiteral(const BlockExpr *); 10901a343ebbf413e8eae6b2737b2b2d79cbf5765571John McCall llvm::Value *EmitBlockLiteral(const CGBlockInfo &Info); 10911a343ebbf413e8eae6b2737b2b2d79cbf5765571John McCall static void destroyBlockInfos(CGBlockInfo *info); 10922a7eb28397148079cbc8e54e8a3871ef01c4f4bcBlaine Garst llvm::Constant *BuildDescriptorBlockDecl(const BlockExpr *, 109389ecd41e0a6bfb3b0913dbe41c3c666340b308c7Fariborz Jahanian const CGBlockInfo &Info, 10942acc6e3feda5e4f7d9009bdcf8b1cd777fecfe2dChris Lattner llvm::StructType *, 1095d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall llvm::Constant *BlockVarLayout); 10964e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump 1097564360be450b319aeafc26698be9811837bfb826Fariborz Jahanian llvm::Function *GenerateBlockFunction(GlobalDecl GD, 10986b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall const CGBlockInfo &Info, 109964bee65a3436e3f0c352fcfe2130676f3502cffeEli Friedman const DeclMapTy &ldm, 110064bee65a3436e3f0c352fcfe2130676f3502cffeEli Friedman bool IsLambdaConversionToBlock); 11014e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump 1102d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall llvm::Constant *GenerateCopyHelperFunction(const CGBlockInfo &blockInfo); 1103d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall llvm::Constant *GenerateDestroyHelperFunction(const CGBlockInfo &blockInfo); 110420abee6b95c4f5a61e471b4b616439280ca4a81bFariborz Jahanian llvm::Constant *GenerateObjCAtomicSetterCopyHelperFunction( 110520abee6b95c4f5a61e471b4b616439280ca4a81bFariborz Jahanian const ObjCPropertyImplDecl *PID); 110620abee6b95c4f5a61e471b4b616439280ca4a81bFariborz Jahanian llvm::Constant *GenerateObjCAtomicGetterCopyHelperFunction( 110720abee6b95c4f5a61e471b4b616439280ca4a81bFariborz Jahanian const ObjCPropertyImplDecl *PID); 1108cae40c4d448529fe65de3d87bdbe97d3b54b4d98Eli Friedman llvm::Value *EmitBlockCopyAndAutorelease(llvm::Value *Block, QualType Ty); 1109d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall 1110d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall void BuildBlockRelease(llvm::Value *DeclPtr, BlockFieldFlags flags); 1111d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall 11125af02db5a48476e0748f135369663080eae87c64John McCall class AutoVarEmission; 11135af02db5a48476e0748f135369663080eae87c64John McCall 11145af02db5a48476e0748f135369663080eae87c64John McCall void emitByrefStructureInit(const AutoVarEmission &emission); 11155af02db5a48476e0748f135369663080eae87c64John McCall void enterByrefCleanup(const AutoVarEmission &emission); 11165af02db5a48476e0748f135369663080eae87c64John McCall 11176b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall llvm::Value *LoadBlockStruct() { 11186b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall assert(BlockPointer && "no block pointer set!"); 11196b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall return BlockPointer; 11206b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall } 11214e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump 1122ea1471e0e967548c596a71469702f8846dbaf3c0John McCall void AllocateBlockCXXThisPointer(const CXXThisExpr *E); 1123f4b88a45902af1802a1cb42ba48b1c474474f228John McCall void AllocateBlockDecl(const DeclRefExpr *E); 11246b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall llvm::Value *GetAddrOfBlockDecl(const VarDecl *var, bool ByRef); 11252acc6e3feda5e4f7d9009bdcf8b1cd777fecfe2dChris Lattner llvm::Type *BuildByRefType(const VarDecl *var); 1126dab514fc30242c7afd6c03956e46136c400fb0d3Mike Stump 1127d26bc76c98006609002d9930f8840490e88ac5b5John McCall void GenerateCode(GlobalDecl GD, llvm::Function *Fn, 1128d26bc76c98006609002d9930f8840490e88ac5b5John McCall const CGFunctionInfo &FnInfo); 1129f5ebf9bf1df10ac15ba32a4b24dfe171b7848c58John McCall void StartFunction(GlobalDecl GD, 1130f5ebf9bf1df10ac15ba32a4b24dfe171b7848c58John McCall QualType RetTy, 11317c086516f3cc9fba2733b1919973206c6ba4b171Daniel Dunbar llvm::Function *Fn, 1132d26bc76c98006609002d9930f8840490e88ac5b5John McCall const CGFunctionInfo &FnInfo, 11332284ac9ec80299fcdefae9a2787cf85105a0f203Daniel Dunbar const FunctionArgList &Args, 11349c6082fe89c61af697f017aa80937581cc2128d8Tilmann Scheller SourceLocation StartLoc); 1135a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 11369fc6a7774643a810c8501dae2323e863fefb623eJohn McCall void EmitConstructorBody(FunctionArgList &Args); 11379fc6a7774643a810c8501dae2323e863fefb623eJohn McCall void EmitDestructorBody(FunctionArgList &Args); 113856c00c4868831c9a137ca7b0e16d063cf986d110Lang Hames void emitImplicitAssignmentOperatorBody(FunctionArgList &Args); 11393cebc73895daccea85984d8881b5b45c8f8df9c6Richard Smith void EmitFunctionBody(FunctionArgList &Args, const Stmt *Body); 1140a355e07454463b19829ac92ffd115a097faff0e0John McCall 1141d6992ab33b7113e1bd7af51c0c52d17c23706c01Faisal Vali void EmitForwardingCallToLambda(const CXXMethodDecl *LambdaCallOperator, 114264bee65a3436e3f0c352fcfe2130676f3502cffeEli Friedman CallArgList &CallArgs); 1143bd89f8c2caa9550e41daa1aa9bf30f0f1e0dfaf7Eli Friedman void EmitLambdaToBlockPointerBody(FunctionArgList &Args); 114464bee65a3436e3f0c352fcfe2130676f3502cffeEli Friedman void EmitLambdaBlockInvokeBody(); 114527dd7d962bbf774988bc5e59d04a7743ed503514Douglas Gregor void EmitLambdaDelegatingInvokeBody(const CXXMethodDecl *MD); 114627dd7d962bbf774988bc5e59d04a7743ed503514Douglas Gregor void EmitLambdaStaticInvokeFunction(const CXXMethodDecl *MD); 1147bd89f8c2caa9550e41daa1aa9bf30f0f1e0dfaf7Eli Friedman 11480dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitReturnBlock - Emit the unified return block, trying to avoid its 11490dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// emission when possible. 11500a0f93c90fd397a1aa9f97283c55f8ba0062bf55David Blaikie void EmitReturnBlock(); 11511c1d6074f5a0296dd273362655b1b8f9057289e3Daniel Dunbar 11520dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// FinishFunction - Complete IR generation of the current function. It is 11530dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// legal to call this function even if there is no current insertion point. 1154af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar void FinishFunction(SourceLocation EndLoc=SourceLocation()); 115517b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar 1156519c32880b99396034ecaedc0cd86db2e8485003Anders Carlsson /// GenerateThunk - Generate a thunk for the given method. 1157d26bc76c98006609002d9930f8840490e88ac5b5John McCall void GenerateThunk(llvm::Function *Fn, const CGFunctionInfo &FnInfo, 1158d26bc76c98006609002d9930f8840490e88ac5b5John McCall GlobalDecl GD, const ThunkInfo &Thunk); 11599cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 11607dcdf5ba9324a9577461eae302e88fdd52e310c5Eli Friedman void GenerateVarArgsThunk(llvm::Function *Fn, const CGFunctionInfo &FnInfo, 11617dcdf5ba9324a9577461eae302e88fdd52e310c5Eli Friedman GlobalDecl GD, const ThunkInfo &Thunk); 11627dcdf5ba9324a9577461eae302e88fdd52e310c5Eli Friedman 1163fb8cc253420e93cee33d29df5a2bdae6aaf16e39Douglas Gregor void EmitCtorPrologue(const CXXConstructorDecl *CD, CXXCtorType Type, 1164fb8cc253420e93cee33d29df5a2bdae6aaf16e39Douglas Gregor FunctionArgList &Args); 11651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1166b74ed087469db042325bad76fdf3ff6ed67dec09Eli Friedman void EmitInitializerForField(FieldDecl *Field, LValue LHS, Expr *Init, 1167b74ed087469db042325bad76fdf3ff6ed67dec09Eli Friedman ArrayRef<VarDecl *> ArrayIndexes); 1168b74ed087469db042325bad76fdf3ff6ed67dec09Eli Friedman 1169d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson /// InitializeVTablePointer - Initialize the vtable pointer of the given 1170d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson /// subobject. 1171d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson /// 11729cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer void InitializeVTablePointer(BaseSubobject Base, 1173b3b772ea15a4cd54879e244629aa685ead9548bbAnders Carlsson const CXXRecordDecl *NearestVBase, 1174d6fb21fa1053e5d616af55b181bb03c50d4b0d24Ken Dyck CharUnits OffsetFromNearestVBase, 1175d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson const CXXRecordDecl *VTableClass); 1176d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson 1177d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson typedef llvm::SmallPtrSet<const CXXRecordDecl *, 4> VisitedVirtualBasesSetTy; 11789cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer void InitializeVTablePointers(BaseSubobject Base, 1179b3b772ea15a4cd54879e244629aa685ead9548bbAnders Carlsson const CXXRecordDecl *NearestVBase, 1180d6fb21fa1053e5d616af55b181bb03c50d4b0d24Ken Dyck CharUnits OffsetFromNearestVBase, 1181603d6d12cc4cba1ef219a3d55c698c7c87f87adfAnders Carlsson bool BaseIsNonVirtualPrimaryBase, 1182603d6d12cc4cba1ef219a3d55c698c7c87f87adfAnders Carlsson const CXXRecordDecl *VTableClass, 1183603d6d12cc4cba1ef219a3d55c698c7c87f87adfAnders Carlsson VisitedVirtualBasesSetTy& VBases); 118477a259c6dbf582949af8a243b472c0c7faa373a6Eli Friedman 1185603d6d12cc4cba1ef219a3d55c698c7c87f87adfAnders Carlsson void InitializeVTablePointers(const CXXRecordDecl *ClassDecl); 1186d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson 1187043fb9a1fc0609285f60f0f87e5a18195408f34cDan Gohman /// GetVTablePtr - Return the Value of the vtable pointer member pointed 1188043fb9a1fc0609285f60f0f87e5a18195408f34cDan Gohman /// to by This. 11892acc6e3feda5e4f7d9009bdcf8b1cd777fecfe2dChris Lattner llvm::Value *GetVTablePtr(llvm::Value *This, llvm::Type *Ty); 1190d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson 11919581ed07dee5376002620a0cfb363c6b9e5bdd3eBenjamin Kramer 11929581ed07dee5376002620a0cfb363c6b9e5bdd3eBenjamin Kramer /// CanDevirtualizeMemberFunctionCalls - Checks whether virtual calls on given 11939581ed07dee5376002620a0cfb363c6b9e5bdd3eBenjamin Kramer /// expr can be devirtualized. 11949581ed07dee5376002620a0cfb363c6b9e5bdd3eBenjamin Kramer bool CanDevirtualizeMemberFunctionCall(const Expr *Base, 11959581ed07dee5376002620a0cfb363c6b9e5bdd3eBenjamin Kramer const CXXMethodDecl *MD); 11969581ed07dee5376002620a0cfb363c6b9e5bdd3eBenjamin Kramer 119750da2cadcc6da86abff6772de65280ace2cabc94John McCall /// EnterDtorCleanups - Enter the cleanups necessary to complete the 119850da2cadcc6da86abff6772de65280ace2cabc94John McCall /// given phase of destruction for a destructor. The end result 119950da2cadcc6da86abff6772de65280ace2cabc94John McCall /// should call destructors on members and base classes in reverse 120050da2cadcc6da86abff6772de65280ace2cabc94John McCall /// order of their construction. 120150da2cadcc6da86abff6772de65280ace2cabc94John McCall void EnterDtorCleanups(const CXXDestructorDecl *Dtor, CXXDtorType Type); 12021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12037255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner /// ShouldInstrumentFunction - Return true if the current function should be 12047255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner /// instrumented with __cyg_profile_func_* calls 12057255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner bool ShouldInstrumentFunction(); 12067255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner 12077255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner /// EmitFunctionInstrumentation - Emit LLVM code to call the specified 12087255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner /// instrumentation function with the current function and the call site, if 12097255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner /// function instrumentation is enabled. 12107255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner void EmitFunctionInstrumentation(const char *Fn); 12117255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner 1212be4c8705e499b55548467eb7adaa23cbc6edfef9Roman Divacky /// EmitMCountInstrumentation - Emit call to .mcount. 1213be4c8705e499b55548467eb7adaa23cbc6edfef9Roman Divacky void EmitMCountInstrumentation(); 1214be4c8705e499b55548467eb7adaa23cbc6edfef9Roman Divacky 12150dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitFunctionProlog - Emit the target specific LLVM code to load the 12160dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// arguments for the given function. This is also responsible for naming the 12170dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// LLVM function arguments. 121888b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar void EmitFunctionProlog(const CGFunctionInfo &FI, 121988b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar llvm::Function *Fn, 122017b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar const FunctionArgList &Args); 122117b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar 12220dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitFunctionEpilog - Emit the target specific LLVM code to return the 12230dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// given temporary. 12244ee7dc2369c1f0257a73b2e83a7d38fdebdd9176Nick Lewycky void EmitFunctionEpilog(const CGFunctionInfo &FI, bool EmitRetDbgLoc, 12254ee7dc2369c1f0257a73b2e83a7d38fdebdd9176Nick Lewycky SourceLocation EndLoc); 122617b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar 1227cce3d4f9812182ed4e551b7cf0fc86576be8d9c5Mike Stump /// EmitStartEHSpec - Emit the start of the exception spec. 1228cce3d4f9812182ed4e551b7cf0fc86576be8d9c5Mike Stump void EmitStartEHSpec(const Decl *D); 1229cce3d4f9812182ed4e551b7cf0fc86576be8d9c5Mike Stump 1230cce3d4f9812182ed4e551b7cf0fc86576be8d9c5Mike Stump /// EmitEndEHSpec - Emit the end of the exception spec. 1231cce3d4f9812182ed4e551b7cf0fc86576be8d9c5Mike Stump void EmitEndEHSpec(const Decl *D); 1232cce3d4f9812182ed4e551b7cf0fc86576be8d9c5Mike Stump 1233f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// getTerminateLandingPad - Return a landing pad that just calls terminate. 1234f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *getTerminateLandingPad(); 1235f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 1236f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// getTerminateHandler - Return a handler (not a landing pad, just 1237f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// a catch handler) that just calls terminate. This is used when 1238f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// a terminate scope encloses a try. 12399b39c51ae3c547568ac42325f94b4197618f6b18Mike Stump llvm::BasicBlock *getTerminateHandler(); 12409b39c51ae3c547568ac42325f94b4197618f6b18Mike Stump 12419cbe4f0ba01ec304e1e3d071c071f7bca33631c0Chris Lattner llvm::Type *ConvertTypeForMem(QualType T); 12429cbe4f0ba01ec304e1e3d071c071f7bca33631c0Chris Lattner llvm::Type *ConvertType(QualType T); 12439cbe4f0ba01ec304e1e3d071c071f7bca33631c0Chris Lattner llvm::Type *ConvertType(const TypeDecl *T) { 1244bff225ecf77fb891596ecb1b27196310d268365eJohn McCall return ConvertType(getContext().getTypeDeclType(T)); 1245bff225ecf77fb891596ecb1b27196310d268365eJohn McCall } 1246c8aa5f1f264fb230c38182adab944232bb160c2bChris Lattner 12470dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// LoadObjCSelf - Load the value of self. This function is only valid while 12480dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// generating code for an Objective-C method. 1249c8aa5f1f264fb230c38182adab944232bb160c2bChris Lattner llvm::Value *LoadObjCSelf(); 12500dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 12510dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// TypeOfSelfObject - Return type of object that this self represents. 125245012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian QualType TypeOfSelfObject(); 12534111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner 12545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// hasAggregateLLVMType - Return true if the specified AST type will map into 12555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// an aggregate LLVM type or is void. 12569d232c884ea9872d6555df0fd7359699819bc1f1John McCall static TypeEvaluationKind getEvaluationKind(QualType T); 12579d232c884ea9872d6555df0fd7359699819bc1f1John McCall 12589d232c884ea9872d6555df0fd7359699819bc1f1John McCall static bool hasScalarEvaluationKind(QualType T) { 12599d232c884ea9872d6555df0fd7359699819bc1f1John McCall return getEvaluationKind(T) == TEK_Scalar; 12609d232c884ea9872d6555df0fd7359699819bc1f1John McCall } 12619d232c884ea9872d6555df0fd7359699819bc1f1John McCall 12629d232c884ea9872d6555df0fd7359699819bc1f1John McCall static bool hasAggregateEvaluationKind(QualType T) { 12639d232c884ea9872d6555df0fd7359699819bc1f1John McCall return getEvaluationKind(T) == TEK_Aggregate; 12649d232c884ea9872d6555df0fd7359699819bc1f1John McCall } 126555e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar 126655e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar /// createBasicBlock - Create an LLVM basic block. 12674def70d3040e73707c738f7c366737a986135edfRichard Smith llvm::BasicBlock *createBasicBlock(const Twine &name = "", 1268d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall llvm::Function *parent = 0, 1269d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall llvm::BasicBlock *before = 0) { 127029ea6729155c759836be4b5453bee9ef8e1e97eeDaniel Dunbar#ifdef NDEBUG 1271d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall return llvm::BasicBlock::Create(getLLVMContext(), "", parent, before); 127229ea6729155c759836be4b5453bee9ef8e1e97eeDaniel Dunbar#else 1273d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall return llvm::BasicBlock::Create(getLLVMContext(), name, parent, before); 127429ea6729155c759836be4b5453bee9ef8e1e97eeDaniel Dunbar#endif 127555e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar } 12760dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 12775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getBasicBlockForLabel - Return the LLVM basicblock that the specified 12785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// label maps to. 1279ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner JumpDest getJumpDestForLabel(const LabelDecl *S); 12800dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1281f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// SimplifyForwardingBlocks - If the given basic block is only a branch to 1282f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// another basic block, simplify it. This assumes that no other code could 1283f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// potentially reference the basic block. 1284aa5bd87f1fd5f9ca47924248817c89325759b30eDaniel Dunbar void SimplifyForwardingBlocks(llvm::BasicBlock *BB); 1285aa5bd87f1fd5f9ca47924248817c89325759b30eDaniel Dunbar 12860dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitBlock - Emit the given block \arg BB and set it as the insert point, 12870dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// adding a fall-through branch from the current insert block if 12880dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// necessary. It is legal to call this function even if there is no current 12890dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// insertion point. 1290a0c21a8faa79e88ac432d116eca58f7a7217195dDaniel Dunbar /// 12910dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// IsFinished - If true, indicates that the caller has finished emitting 12920dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// branches to the given block and does not expect to emit code into it. This 12930dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// means the block can be ignored if it is unreachable. 1294a0c21a8faa79e88ac432d116eca58f7a7217195dDaniel Dunbar void EmitBlock(llvm::BasicBlock *BB, bool IsFinished=false); 1295824e3bd76b2e32db2ec6e4d2d113413e518d1c63Daniel Dunbar 1296777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall /// EmitBlockAfterUses - Emit the given block somewhere hopefully 1297777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall /// near its uses, and leave the insertion point in it. 1298777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall void EmitBlockAfterUses(llvm::BasicBlock *BB); 1299777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall 13000dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitBranch - Emit a branch to the specified basic block from the current 13010dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// insert block, taking care to avoid creation of branches from dummy 13020dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// blocks. It is legal to call this function even if there is no current 13030dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// insertion point. 13045e08ad3cc62ab94649959ae227a9a411a729bf49Daniel Dunbar /// 13050dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// This function clears the current insertion point. The caller should follow 13060dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// calls to this function with calls to Emit*Block prior to generation new 13070dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// code. 1308d57a871339c7c98d58d93108b806f59bdf4e13e2Daniel Dunbar void EmitBranch(llvm::BasicBlock *Block); 1309d57a871339c7c98d58d93108b806f59bdf4e13e2Daniel Dunbar 13100dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// HaveInsertPoint - True if an insertion point is defined. If not, this 13110dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// indicates that the current code being emitted is unreachable. 13120dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump bool HaveInsertPoint() const { 1313a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar return Builder.GetInsertBlock() != 0; 1314a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar } 1315a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 13160dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EnsureInsertPoint - Ensure that an insertion point is defined so that 13170dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// emitted IR has a place to go. Note that by definition, if this function 13180dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// creates a block then that block is unreachable; callers may do better to 13190dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// detect when no insertion point is defined and simply skip IR generation. 1320a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar void EnsureInsertPoint() { 1321a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar if (!HaveInsertPoint()) 1322a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar EmitBlock(createBasicBlock()); 1323a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar } 13240dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1325488e993a135ce700b982bf099c3d6b856301d642Daniel Dunbar /// ErrorUnsupported - Print out an error that codegen doesn't support the 1326dc5e8268292046114ffe02e48773572a91a310f1Chris Lattner /// specified stmt yet. 13270a1c862914664029e3b6693e134cf3ccbf423844David Blaikie void ErrorUnsupported(const Stmt *S, const char *Type); 13285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 13305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Helpers 13315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 13320dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 13336da2c716017d5c8530ec99779524491ebc5dadb8Eli Friedman LValue MakeAddrLValue(llvm::Value *V, QualType T, 13346da2c716017d5c8530ec99779524491ebc5dadb8Eli Friedman CharUnits Alignment = CharUnits()) { 13353d5aff5d3036b0ff09d114857cd2276134b3d8c9Dan Gohman return LValue::MakeAddr(V, T, Alignment, getContext(), 13363d5aff5d3036b0ff09d114857cd2276134b3d8c9Dan Gohman CGM.getTBAAInfo(T)); 13372f77b3d57031ded0de2b7b977fb63b4660f82624Eli Friedman } 1338e0c1168ec7910a1a7ed08df4d4f0c58c2fa2ecd1John McCall 13392f77b3d57031ded0de2b7b977fb63b4660f82624Eli Friedman LValue MakeNaturalAlignAddrLValue(llvm::Value *V, QualType T) { 13406da2c716017d5c8530ec99779524491ebc5dadb8Eli Friedman CharUnits Alignment; 13416da2c716017d5c8530ec99779524491ebc5dadb8Eli Friedman if (!T->isIncompleteType()) 13426da2c716017d5c8530ec99779524491ebc5dadb8Eli Friedman Alignment = getContext().getTypeAlignInChars(T); 13432f77b3d57031ded0de2b7b977fb63b4660f82624Eli Friedman return LValue::MakeAddr(V, T, Alignment, getContext(), 13442f77b3d57031ded0de2b7b977fb63b4660f82624Eli Friedman CGM.getTBAAInfo(T)); 13455cf8bfec711116b3c4acc70a00717b2e119e7550Daniel Dunbar } 13465cf8bfec711116b3c4acc70a00717b2e119e7550Daniel Dunbar 13475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// CreateTempAlloca - This creates a alloca and inserts it into the entry 1348195337d2e5d4625ae9dc1328c7cdbc7115b0261bDaniel Dunbar /// block. The caller is responsible for setting an appropriate alignment on 1349195337d2e5d4625ae9dc1328c7cdbc7115b0261bDaniel Dunbar /// the alloca. 13502acc6e3feda5e4f7d9009bdcf8b1cd777fecfe2dChris Lattner llvm::AllocaInst *CreateTempAlloca(llvm::Type *Ty, 13518cc488fefb2fb04bc8d5398da29f0182f97934cfChris Lattner const Twine &Name = "tmp"); 13520dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1353ac418162692a951ca3796d6830496a85a2d12493John McCall /// InitTempAlloca - Provide an initial value for the given alloca. 1354ac418162692a951ca3796d6830496a85a2d12493John McCall void InitTempAlloca(llvm::AllocaInst *Alloca, llvm::Value *Value); 1355ac418162692a951ca3796d6830496a85a2d12493John McCall 13569bd4da2cfa8b956b851200db8f9a37e175edbb15Daniel Dunbar /// CreateIRTemp - Create a temporary IR object of the given type, with 13579bd4da2cfa8b956b851200db8f9a37e175edbb15Daniel Dunbar /// appropriate alignment. This routine should only be used when an temporary 13589bd4da2cfa8b956b851200db8f9a37e175edbb15Daniel Dunbar /// value needs to be stored into an alloca (for example, to avoid explicit 13599bd4da2cfa8b956b851200db8f9a37e175edbb15Daniel Dunbar /// PHI construction), but the type is the IR type, not the type appropriate 13609bd4da2cfa8b956b851200db8f9a37e175edbb15Daniel Dunbar /// for storing in memory. 13618cc488fefb2fb04bc8d5398da29f0182f97934cfChris Lattner llvm::AllocaInst *CreateIRTemp(QualType T, const Twine &Name = "tmp"); 13629bd4da2cfa8b956b851200db8f9a37e175edbb15Daniel Dunbar 1363195337d2e5d4625ae9dc1328c7cdbc7115b0261bDaniel Dunbar /// CreateMemTemp - Create a temporary memory object of the given type, with 1364195337d2e5d4625ae9dc1328c7cdbc7115b0261bDaniel Dunbar /// appropriate alignment. 13658cc488fefb2fb04bc8d5398da29f0182f97934cfChris Lattner llvm::AllocaInst *CreateMemTemp(QualType T, const Twine &Name = "tmp"); 1366195337d2e5d4625ae9dc1328c7cdbc7115b0261bDaniel Dunbar 1367558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// CreateAggTemp - Create a temporary memory object for the given 1368558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// aggregate type. 13698cc488fefb2fb04bc8d5398da29f0182f97934cfChris Lattner AggValueSlot CreateAggTemp(QualType T, const Twine &Name = "tmp") { 1370d7722d9d76a851e7897f4127626616d3b1b8e530Eli Friedman CharUnits Alignment = getContext().getTypeAlignInChars(T); 1371f394078fde147dcf27e9b6a7965517388d64dcb6Eli Friedman return AggValueSlot::forAddr(CreateMemTemp(T, Name), Alignment, 1372f394078fde147dcf27e9b6a7965517388d64dcb6Eli Friedman T.getQualifiers(), 13737c2349be2d11143a2e59a167fd43362a3bf4585eJohn McCall AggValueSlot::IsNotDestructed, 1374410ffb2bc5f072d58a73c14560345bcf77dec1ccJohn McCall AggValueSlot::DoesNotNeedGCBarriers, 1375649b4a1a9b5e6f768ca0cb84bd97b00f51083e15Chad Rosier AggValueSlot::IsNotAliased); 1376558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall } 1377558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall 1378d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall /// Emit a cast to void* in the appropriate address space. 1379d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall llvm::Value *EmitCastToVoidPtr(llvm::Value *value); 1380d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall 13815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EvaluateExprAsBool - Perform the usual unary conversions on the specified 13825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// expression and compare the result against zero, returning an Int1Ty value. 13835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::Value *EvaluateExprAsBool(const Expr *E); 13845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13852a41637a995affa1563f4d82a8b026e326a2faa0John McCall /// EmitIgnoredExpr - Emit an expression in a context which ignores the result. 13862a41637a995affa1563f4d82a8b026e326a2faa0John McCall void EmitIgnoredExpr(const Expr *E); 13872a41637a995affa1563f4d82a8b026e326a2faa0John McCall 13889b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// EmitAnyExpr - Emit code to compute the specified expression which can have 13899b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// any type. The result is returned as an RValue struct. If this is an 13909b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// aggregate expression, the aggloc/agglocvolatile arguments indicate where 13919b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// the result should be returned. 139249d1cd5a09ed3df353371fd7f206674a85e0fb45Mike Stump /// 139370517ca5c07c4b41ff8662b94ee22047b0299f8cDmitri Gribenko /// \param ignoreResult True if the resulting value isn't used. 1394558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall RValue EmitAnyExpr(const Expr *E, 1395e0c1168ec7910a1a7ed08df4d4f0c58c2fa2ecd1John McCall AggValueSlot aggSlot = AggValueSlot::ignored(), 1396e0c1168ec7910a1a7ed08df4d4f0c58c2fa2ecd1John McCall bool ignoreResult = false); 1397d9363c3a80168283b3da518b4e17f545a6246857Devang Patel 13980dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // EmitVAListRef - Emit a "reference" to a va_list; this is either the address 13990dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // or the value of the expression, depending on how va_list is defined. 14004fd0aa5803357d8c72eeac2cae15e12649ea08feEli Friedman llvm::Value *EmitVAListRef(const Expr *E); 14014fd0aa5803357d8c72eeac2cae15e12649ea08feEli Friedman 14020dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitAnyExprToTemp - Similary to EmitAnyExpr(), however, the result will 14030dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// always be accessible even if no aggregate location is provided. 1404558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall RValue EmitAnyExprToTemp(const Expr *E); 140546f45b9bec4a265ad8400a538e5ec3a5683617f1Daniel Dunbar 140660d3365b46eb826fba44483583c0051ac5c41fe3John McCall /// EmitAnyExprToMem - Emits the code necessary to evaluate an 1407649b4a1a9b5e6f768ca0cb84bd97b00f51083e15Chad Rosier /// arbitrary expression into the given memory location. 14083d3ec1c099ec8bfac3aa1fb0126fe515b7c7fa05John McCall void EmitAnyExprToMem(const Expr *E, llvm::Value *Location, 1409649b4a1a9b5e6f768ca0cb84bd97b00f51083e15Chad Rosier Qualifiers Quals, bool IsInitializer); 14103d3ec1c099ec8bfac3aa1fb0126fe515b7c7fa05John McCall 141160d3365b46eb826fba44483583c0051ac5c41fe3John McCall /// EmitExprAsInit - Emits the code necessary to initialize a 141260d3365b46eb826fba44483583c0051ac5c41fe3John McCall /// location in memory with the given initializer. 1413f85e193739c953358c865005855253af4f68a497John McCall void EmitExprAsInit(const Expr *init, const ValueDecl *D, 1414a07398ed98ea2b55ad7a505a3aab18aed93b149fJohn McCall LValue lvalue, bool capturedByInit); 141560d3365b46eb826fba44483583c0051ac5c41fe3John McCall 14163ac83d69c61238cd0d38e90fcdd03390530ab2fbFariborz Jahanian /// hasVolatileMember - returns true if aggregate type has a volatile 14173ac83d69c61238cd0d38e90fcdd03390530ab2fbFariborz Jahanian /// member. 14183ac83d69c61238cd0d38e90fcdd03390530ab2fbFariborz Jahanian bool hasVolatileMember(QualType T) { 14193ac83d69c61238cd0d38e90fcdd03390530ab2fbFariborz Jahanian if (const RecordType *RT = T->getAs<RecordType>()) { 14203ac83d69c61238cd0d38e90fcdd03390530ab2fbFariborz Jahanian const RecordDecl *RD = cast<RecordDecl>(RT->getDecl()); 14213ac83d69c61238cd0d38e90fcdd03390530ab2fbFariborz Jahanian return RD->hasVolatileMember(); 14223ac83d69c61238cd0d38e90fcdd03390530ab2fbFariborz Jahanian } 14233ac83d69c61238cd0d38e90fcdd03390530ab2fbFariborz Jahanian return false; 14243ac83d69c61238cd0d38e90fcdd03390530ab2fbFariborz Jahanian } 14258fcbb8dfbc28b6279d22144e10ade401a6c03e9eArnaud A. de Grandmaison /// EmitAggregateCopy - Emit an aggregate assignment. 14266cacae8bf9597b8124cd40aedc189c04484e1990Benjamin Kramer /// 14276cacae8bf9597b8124cd40aedc189c04484e1990Benjamin Kramer /// The difference to EmitAggregateCopy is that tail padding is not copied. 14286cacae8bf9597b8124cd40aedc189c04484e1990Benjamin Kramer /// This is required for correctness when assigning non-POD structures in C++. 14296cacae8bf9597b8124cd40aedc189c04484e1990Benjamin Kramer void EmitAggregateAssign(llvm::Value *DestPtr, llvm::Value *SrcPtr, 14303ac83d69c61238cd0d38e90fcdd03390530ab2fbFariborz Jahanian QualType EltTy) { 14313ac83d69c61238cd0d38e90fcdd03390530ab2fbFariborz Jahanian bool IsVolatile = hasVolatileMember(EltTy); 14323ac83d69c61238cd0d38e90fcdd03390530ab2fbFariborz Jahanian EmitAggregateCopy(DestPtr, SrcPtr, EltTy, IsVolatile, CharUnits::Zero(), 14333ac83d69c61238cd0d38e90fcdd03390530ab2fbFariborz Jahanian true); 14346cacae8bf9597b8124cd40aedc189c04484e1990Benjamin Kramer } 14356cacae8bf9597b8124cd40aedc189c04484e1990Benjamin Kramer 14368fcbb8dfbc28b6279d22144e10ade401a6c03e9eArnaud A. de Grandmaison /// EmitAggregateCopy - Emit an aggregate copy. 143727fe2e6c97a3782a0639d87b460741e8ba5d076dMike Stump /// 1438f3477c13eeaf11b32a41f181398fb5deffd0dd73Sylvestre Ledru /// \param isVolatile - True iff either the source or the destination is 143927fe2e6c97a3782a0639d87b460741e8ba5d076dMike Stump /// volatile. 14406cacae8bf9597b8124cd40aedc189c04484e1990Benjamin Kramer /// \param isAssignment - If false, allow padding to be copied. This often 14416cacae8bf9597b8124cd40aedc189c04484e1990Benjamin Kramer /// yields more efficient. 14427482d12c345c6391f8956850545e2d4aa7701ce6Daniel Dunbar void EmitAggregateCopy(llvm::Value *DestPtr, llvm::Value *SrcPtr, 1443bd7d82878c1588afccbee6c68fa6e17bbbab7f2cEli Friedman QualType EltTy, bool isVolatile=false, 14446cacae8bf9597b8124cd40aedc189c04484e1990Benjamin Kramer CharUnits Alignment = CharUnits::Zero(), 14456cacae8bf9597b8124cd40aedc189c04484e1990Benjamin Kramer bool isAssignment = false); 14467482d12c345c6391f8956850545e2d4aa7701ce6Daniel Dunbar 144751b09f2c528c8460b5465c676173324e44176d62Devang Patel /// StartBlock - Start new block named N. If insert block is a dummy block 144851b09f2c528c8460b5465c676173324e44176d62Devang Patel /// then reuse it. 144951b09f2c528c8460b5465c676173324e44176d62Devang Patel void StartBlock(const char *N); 145051b09f2c528c8460b5465c676173324e44176d62Devang Patel 1451dde0a94120915fa925d1ffcdb997c7b44dc9fa21Anders Carlsson /// GetAddrOfLocalVar - Return the address of a local variable. 14524c40d98ab7acf5f27fa89b17bd8fc0ef7683df37John McCall llvm::Value *GetAddrOfLocalVar(const VarDecl *VD) { 14534c40d98ab7acf5f27fa89b17bd8fc0ef7683df37John McCall llvm::Value *Res = LocalDeclMap[VD]; 14544c40d98ab7acf5f27fa89b17bd8fc0ef7683df37John McCall assert(Res && "Invalid argument to GetAddrOfLocalVar(), no decl!"); 14554c40d98ab7acf5f27fa89b17bd8fc0ef7683df37John McCall return Res; 14564c40d98ab7acf5f27fa89b17bd8fc0ef7683df37John McCall } 14570dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 145856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// getOpaqueLValueMapping - Given an opaque value expression (which 145956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// must be mapped to an l-value), return its mapping. 146056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall const LValue &getOpaqueLValueMapping(const OpaqueValueExpr *e) { 146156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall assert(OpaqueValueMapping::shouldBindAsLValue(e)); 146256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 146356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall llvm::DenseMap<const OpaqueValueExpr*,LValue>::iterator 146456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall it = OpaqueLValues.find(e); 146556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall assert(it != OpaqueLValues.end() && "no mapping for opaque value!"); 146656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return it->second; 146756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 146856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 146956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// getOpaqueRValueMapping - Given an opaque value expression (which 147056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// must be mapped to an r-value), return its mapping. 147156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall const RValue &getOpaqueRValueMapping(const OpaqueValueExpr *e) { 147256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall assert(!OpaqueValueMapping::shouldBindAsLValue(e)); 147356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 147456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall llvm::DenseMap<const OpaqueValueExpr*,RValue>::iterator 147556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall it = OpaqueRValues.find(e); 147656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall assert(it != OpaqueRValues.end() && "no mapping for opaque value!"); 1477e996ffd240f20a1048179d7727a6ee3227261921John McCall return it->second; 1478e996ffd240f20a1048179d7727a6ee3227261921John McCall } 1479e996ffd240f20a1048179d7727a6ee3227261921John McCall 14804f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman /// getAccessedFieldNo - Given an encoded value and a result number, return 14814f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman /// the input field number being accessed. 14824f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman static unsigned getAccessedFieldNo(unsigned Idx, const llvm::Constant *Elts); 14834f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman 1484ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner llvm::BlockAddress *GetAddrOfLabel(const LabelDecl *L); 14853d00fdc82fd550ae4bfbb2e700a1fc85bbd6d6fdChris Lattner llvm::BasicBlock *GetIndirectGotoBlock(); 14860ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar 14871884eb0b5c55edda4893ddec45e7dbad79758782Anders Carlsson /// EmitNullInitialization - Generate code to set a value of the given type to 14881884eb0b5c55edda4893ddec45e7dbad79758782Anders Carlsson /// null, If the type contains data member pointers, they will be initialized 14891884eb0b5c55edda4893ddec45e7dbad79758782Anders Carlsson /// to -1 in accordance with the Itanium C++ ABI. 14901884eb0b5c55edda4893ddec45e7dbad79758782Anders Carlsson void EmitNullInitialization(llvm::Value *DestPtr, QualType Ty); 1491ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson 1492ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson // EmitVAArg - Generate code to get an argument from the passed in pointer 1493ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson // and update it accordingly. The return value is a pointer to the argument. 1494ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson // FIXME: We should be able to get rid of this method and use the va_arg 14950dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // instruction in LLVM instead once it works well enough. 1496ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson llvm::Value *EmitVAArg(llvm::Value *VAListAddr, QualType Ty); 1497f666b7780d04186521adcaedb0e15dfa4d5e6933Anders Carlsson 1498bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall /// emitArrayLength - Compute the length of an array, even if it's a 1499bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall /// VLA, and drill down to the base element type. 1500bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall llvm::Value *emitArrayLength(const ArrayType *arrayType, 1501bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall QualType &baseType, 1502bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall llvm::Value *&addr); 1503bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall 1504bc8d40d85f3fa1e34569834916f18fecaa635152John McCall /// EmitVLASize - Capture all the sizes for the VLA expressions in 1505bc8d40d85f3fa1e34569834916f18fecaa635152John McCall /// the given variably-modified type and store them in the VLASizeMap. 1506d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// 1507d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// This function can be called with a null (unreachable) insert point. 1508bc8d40d85f3fa1e34569834916f18fecaa635152John McCall void EmitVariablyModifiedType(QualType Ty); 1509bc8d40d85f3fa1e34569834916f18fecaa635152John McCall 1510bc8d40d85f3fa1e34569834916f18fecaa635152John McCall /// getVLASize - Returns an LLVM value that corresponds to the size, 1511bc8d40d85f3fa1e34569834916f18fecaa635152John McCall /// in non-variably-sized elements, of a variable length array type, 1512bc8d40d85f3fa1e34569834916f18fecaa635152John McCall /// plus that largest non-variably-sized element type. Assumes that 1513bc8d40d85f3fa1e34569834916f18fecaa635152John McCall /// the type has already been emitted with EmitVariablyModifiedType. 1514bc8d40d85f3fa1e34569834916f18fecaa635152John McCall std::pair<llvm::Value*,QualType> getVLASize(const VariableArrayType *vla); 1515bc8d40d85f3fa1e34569834916f18fecaa635152John McCall std::pair<llvm::Value*,QualType> getVLASize(QualType vla); 1516dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson 15175f4307b7ba164b03c853c8d3eb4674d33f8967a6Anders Carlsson /// LoadCXXThis - Load the value of 'this'. This function is only valid while 15185f4307b7ba164b03c853c8d3eb4674d33f8967a6Anders Carlsson /// generating code for an C++ member function. 15192504941793b549323f9d29c62507cf21d865fadeJohn McCall llvm::Value *LoadCXXThis() { 15202504941793b549323f9d29c62507cf21d865fadeJohn McCall assert(CXXThisValue && "no 'this' value for this function"); 15212504941793b549323f9d29c62507cf21d865fadeJohn McCall return CXXThisValue; 15222504941793b549323f9d29c62507cf21d865fadeJohn McCall } 15231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1524c997d4278d329e18891aac9698fb991b2d4622ebAnders Carlsson /// LoadCXXVTT - Load the VTT parameter to base constructors/destructors have 1525c997d4278d329e18891aac9698fb991b2d4622ebAnders Carlsson /// virtual bases. 152659660c21178b6af518bd4b564e032d5c9cc218cbTimur Iskhodzhanov // FIXME: Every place that calls LoadCXXVTT is something 152759660c21178b6af518bd4b564e032d5c9cc218cbTimur Iskhodzhanov // that needs to be abstracted properly. 15282504941793b549323f9d29c62507cf21d865fadeJohn McCall llvm::Value *LoadCXXVTT() { 152959660c21178b6af518bd4b564e032d5c9cc218cbTimur Iskhodzhanov assert(CXXStructorImplicitParamValue && "no VTT value for this function"); 153059660c21178b6af518bd4b564e032d5c9cc218cbTimur Iskhodzhanov return CXXStructorImplicitParamValue; 153159660c21178b6af518bd4b564e032d5c9cc218cbTimur Iskhodzhanov } 153259660c21178b6af518bd4b564e032d5c9cc218cbTimur Iskhodzhanov 153359660c21178b6af518bd4b564e032d5c9cc218cbTimur Iskhodzhanov /// LoadCXXStructorImplicitParam - Load the implicit parameter 153459660c21178b6af518bd4b564e032d5c9cc218cbTimur Iskhodzhanov /// for a constructor/destructor. 153559660c21178b6af518bd4b564e032d5c9cc218cbTimur Iskhodzhanov llvm::Value *LoadCXXStructorImplicitParam() { 153659660c21178b6af518bd4b564e032d5c9cc218cbTimur Iskhodzhanov assert(CXXStructorImplicitParamValue && 153759660c21178b6af518bd4b564e032d5c9cc218cbTimur Iskhodzhanov "no implicit argument value for this function"); 153859660c21178b6af518bd4b564e032d5c9cc218cbTimur Iskhodzhanov return CXXStructorImplicitParamValue; 15392504941793b549323f9d29c62507cf21d865fadeJohn McCall } 1540bff225ecf77fb891596ecb1b27196310d268365eJohn McCall 1541bff225ecf77fb891596ecb1b27196310d268365eJohn McCall /// GetAddressOfBaseOfCompleteClass - Convert the given pointer to a 15428561a8666c70f924c8f0209c41b9b77bbbf90607Anders Carlsson /// complete class to the given direct base. 15438561a8666c70f924c8f0209c41b9b77bbbf90607Anders Carlsson llvm::Value * 15448561a8666c70f924c8f0209c41b9b77bbbf90607Anders Carlsson GetAddressOfDirectBaseInCompleteClass(llvm::Value *Value, 15458561a8666c70f924c8f0209c41b9b77bbbf90607Anders Carlsson const CXXRecordDecl *Derived, 15468561a8666c70f924c8f0209c41b9b77bbbf90607Anders Carlsson const CXXRecordDecl *Base, 15478561a8666c70f924c8f0209c41b9b77bbbf90607Anders Carlsson bool BaseIsVirtual); 1548a88ad5618fcb07c5374c79d6781a33234984b039Anders Carlsson 1549f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// GetAddressOfBaseClass - This function will add the necessary delta to the 1550f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// load of 'this' and returns address of the base class. 15519cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer llvm::Value *GetAddressOfBaseClass(llvm::Value *Value, 15528561a8666c70f924c8f0209c41b9b77bbbf90607Anders Carlsson const CXXRecordDecl *Derived, 1553f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastExpr::path_const_iterator PathBegin, 1554f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastExpr::path_const_iterator PathEnd, 155534a2d384c745ebc39cae45dc1c0c4a6a7012e09bAnders Carlsson bool NullCheckValue); 155634a2d384c745ebc39cae45dc1c0c4a6a7012e09bAnders Carlsson 1557a3697c9c155bda93fd2802f37084b620f4738822Anders Carlsson llvm::Value *GetAddressOfDerivedClass(llvm::Value *Value, 15588561a8666c70f924c8f0209c41b9b77bbbf90607Anders Carlsson const CXXRecordDecl *Derived, 1559f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastExpr::path_const_iterator PathBegin, 1560f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastExpr::path_const_iterator PathEnd, 15615a0f49ebc83e7fe0da07b9964c44b0a7fae270cbAnders Carlsson bool NullCheckValue); 1562a3697c9c155bda93fd2802f37084b620f4738822Anders Carlsson 15631d4fff5551c2347010b955b4337a2aa7d65a050eTimur Iskhodzhanov /// GetVTTParameter - Return the VTT parameter that should be passed to a 15641d4fff5551c2347010b955b4337a2aa7d65a050eTimur Iskhodzhanov /// base constructor/destructor with virtual bases. 15651d4fff5551c2347010b955b4337a2aa7d65a050eTimur Iskhodzhanov /// FIXME: VTTs are Itanium ABI-specific, so the definition should move 15661d4fff5551c2347010b955b4337a2aa7d65a050eTimur Iskhodzhanov /// to ItaniumCXXABI.cpp together with all the references to VTT. 15671d4fff5551c2347010b955b4337a2aa7d65a050eTimur Iskhodzhanov llvm::Value *GetVTTParameter(GlobalDecl GD, bool ForVirtualBase, 15681d4fff5551c2347010b955b4337a2aa7d65a050eTimur Iskhodzhanov bool Delegating); 15691d4fff5551c2347010b955b4337a2aa7d65a050eTimur Iskhodzhanov 1570c0bf462cf35fe050bddbd8bff967298e4a67e79dJohn McCall void EmitDelegateCXXConstructorCall(const CXXConstructorDecl *Ctor, 1571c0bf462cf35fe050bddbd8bff967298e4a67e79dJohn McCall CXXCtorType CtorType, 15724ee7dc2369c1f0257a73b2e83a7d38fdebdd9176Nick Lewycky const FunctionArgList &Args, 15734ee7dc2369c1f0257a73b2e83a7d38fdebdd9176Nick Lewycky SourceLocation Loc); 1574059ce0d92eb5a7da900ae735dc0a2ea3d64f4b0bSean Hunt // It's important not to confuse this and the previous function. Delegating 1575059ce0d92eb5a7da900ae735dc0a2ea3d64f4b0bSean Hunt // constructors are the C++0x feature. The constructor delegate optimization 1576059ce0d92eb5a7da900ae735dc0a2ea3d64f4b0bSean Hunt // is used to reduce duplication in the base and complete consturctors where 1577059ce0d92eb5a7da900ae735dc0a2ea3d64f4b0bSean Hunt // they are substantially the same. 1578059ce0d92eb5a7da900ae735dc0a2ea3d64f4b0bSean Hunt void EmitDelegatingCXXConstructorCall(const CXXConstructorDecl *Ctor, 1579059ce0d92eb5a7da900ae735dc0a2ea3d64f4b0bSean Hunt const FunctionArgList &Args); 1580155ed4a23366f4514befb1c9f5f89d16f8b8b6dbAnders Carlsson void EmitCXXConstructorCall(const CXXConstructorDecl *D, CXXCtorType Type, 1581378e1e739aed97e9b278beeb20e9f5bbe34c0232Douglas Gregor bool ForVirtualBase, bool Delegating, 1582378e1e739aed97e9b278beeb20e9f5bbe34c0232Douglas Gregor llvm::Value *This, 1583b14095aa98c6fedd3625920c4ce834bcaf24d9f7Anders Carlsson CallExpr::const_arg_iterator ArgBeg, 1584b14095aa98c6fedd3625920c4ce834bcaf24d9f7Anders Carlsson CallExpr::const_arg_iterator ArgEnd); 158534999876e215b22febc240b1a6dc054215d12f9cFariborz Jahanian 158634999876e215b22febc240b1a6dc054215d12f9cFariborz Jahanian void EmitSynthesizedCXXCopyCtorCall(const CXXConstructorDecl *D, 158734999876e215b22febc240b1a6dc054215d12f9cFariborz Jahanian llvm::Value *This, llvm::Value *Src, 158834999876e215b22febc240b1a6dc054215d12f9cFariborz Jahanian CallExpr::const_arg_iterator ArgBeg, 158934999876e215b22febc240b1a6dc054215d12f9cFariborz Jahanian CallExpr::const_arg_iterator ArgEnd); 15901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1591288dcaf329c49b01dacd5c1dd9f35609555feecdFariborz Jahanian void EmitCXXAggrConstructorCall(const CXXConstructorDecl *D, 1592569c1f4a6c703eaa8b963bed7d5c2fd5d4569e93Anders Carlsson const ConstantArrayType *ArrayTy, 15935d4d946ec2d88696fd8422aeb64dc29688e6a2c1Anders Carlsson llvm::Value *ArrayPtr, 15945d4d946ec2d88696fd8422aeb64dc29688e6a2c1Anders Carlsson CallExpr::const_arg_iterator ArgBeg, 159559174c0633fb5cde41735cfbff5744bdf837e8d9Douglas Gregor CallExpr::const_arg_iterator ArgEnd, 159659174c0633fb5cde41735cfbff5744bdf837e8d9Douglas Gregor bool ZeroInitialization = false); 15979cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 1598569c1f4a6c703eaa8b963bed7d5c2fd5d4569e93Anders Carlsson void EmitCXXAggrConstructorCall(const CXXConstructorDecl *D, 1599569c1f4a6c703eaa8b963bed7d5c2fd5d4569e93Anders Carlsson llvm::Value *NumElements, 16005d4d946ec2d88696fd8422aeb64dc29688e6a2c1Anders Carlsson llvm::Value *ArrayPtr, 16015d4d946ec2d88696fd8422aeb64dc29688e6a2c1Anders Carlsson CallExpr::const_arg_iterator ArgBeg, 160259174c0633fb5cde41735cfbff5744bdf837e8d9Douglas Gregor CallExpr::const_arg_iterator ArgEnd, 160359174c0633fb5cde41735cfbff5744bdf837e8d9Douglas Gregor bool ZeroInitialization = false); 1604b14095aa98c6fedd3625920c4ce834bcaf24d9f7Anders Carlsson 1605bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall static Destroyer destroyCXXObject; 1606bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall 16077267c1693abe7875b0c57268be05005ae013c6c9Anders Carlsson void EmitCXXDestructorCall(const CXXDestructorDecl *D, CXXDtorType Type, 1608378e1e739aed97e9b278beeb20e9f5bbe34c0232Douglas Gregor bool ForVirtualBase, bool Delegating, 1609378e1e739aed97e9b278beeb20e9f5bbe34c0232Douglas Gregor llvm::Value *This); 16109cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 1611197056726ed6412501130c2ef2ff69009772aa65John McCall void EmitNewArrayInitializer(const CXXNewExpr *E, QualType elementType, 1612197056726ed6412501130c2ef2ff69009772aa65John McCall llvm::Value *NewPtr, llvm::Value *NumElements); 16131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 161486811609d9353e3aed198045d56e790eb3b6118cPeter Collingbourne void EmitCXXTemporary(const CXXTemporary *Temporary, QualType TempType, 161586811609d9353e3aed198045d56e790eb3b6118cPeter Collingbourne llvm::Value *Ptr); 16161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1617a00703dccbdc6cc4a293db38477dea7db5538c7eAnders Carlsson llvm::Value *EmitCXXNewExpr(const CXXNewExpr *E); 161860e282cc1e508be327b0481cecedc206873cb86aAnders Carlsson void EmitCXXDeleteExpr(const CXXDeleteExpr *E); 16191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16204bf8152799ec41796f989ea1b94f6f1bac349117Eli Friedman void EmitDeleteCall(const FunctionDecl *DeleteFD, llvm::Value *Ptr, 16214bf8152799ec41796f989ea1b94f6f1bac349117Eli Friedman QualType DeleteTy); 16224bf8152799ec41796f989ea1b94f6f1bac349117Eli Friedman 1623c2e84ae9a6d25cea3e583c768e576b4c981ec028Mike Stump llvm::Value* EmitCXXTypeidExpr(const CXXTypeidExpr *E); 1624c849c052d6b4b70f2651c1969531861a5f230053Mike Stump llvm::Value *EmitDynamicCast(llvm::Value *V, const CXXDynamicCastExpr *DCE); 1625c5f804636e367ef744fd24cf88f7c956a5af0434Nico Weber llvm::Value* EmitCXXUuidofExpr(const CXXUuidofExpr *E); 1626c2e84ae9a6d25cea3e583c768e576b4c981ec028Mike Stump 16272c9f87ca5cccbfdaad82762368af5b2323320653Richard Smith /// \brief Situations in which we might emit a check for the suitability of a 16282c9f87ca5cccbfdaad82762368af5b2323320653Richard Smith /// pointer or glvalue. 16297ac9ef1c82c779a5348ed11b3d10e01c58803b35Richard Smith enum TypeCheckKind { 16302c9f87ca5cccbfdaad82762368af5b2323320653Richard Smith /// Checking the operand of a load. Must be suitably sized and aligned. 16317ac9ef1c82c779a5348ed11b3d10e01c58803b35Richard Smith TCK_Load, 16322c9f87ca5cccbfdaad82762368af5b2323320653Richard Smith /// Checking the destination of a store. Must be suitably sized and aligned. 16337ac9ef1c82c779a5348ed11b3d10e01c58803b35Richard Smith TCK_Store, 16342c9f87ca5cccbfdaad82762368af5b2323320653Richard Smith /// Checking the bound value in a reference binding. Must be suitably sized 16352c9f87ca5cccbfdaad82762368af5b2323320653Richard Smith /// and aligned, but is not required to refer to an object (until the 16362c9f87ca5cccbfdaad82762368af5b2323320653Richard Smith /// reference is used), per core issue 453. 16377ac9ef1c82c779a5348ed11b3d10e01c58803b35Richard Smith TCK_ReferenceBinding, 16382c9f87ca5cccbfdaad82762368af5b2323320653Richard Smith /// Checking the object expression in a non-static data member access. Must 16392c9f87ca5cccbfdaad82762368af5b2323320653Richard Smith /// be an object within its lifetime. 16407ac9ef1c82c779a5348ed11b3d10e01c58803b35Richard Smith TCK_MemberAccess, 16412c9f87ca5cccbfdaad82762368af5b2323320653Richard Smith /// Checking the 'this' pointer for a call to a non-static member function. 16422c9f87ca5cccbfdaad82762368af5b2323320653Richard Smith /// Must be an object within its lifetime. 16438e1cee6f23e2552b96b81e5ef419ab3f69c5b5c2Richard Smith TCK_MemberCall, 16448e1cee6f23e2552b96b81e5ef419ab3f69c5b5c2Richard Smith /// Checking the 'this' pointer for a constructor call. 1645c764830bdb6de82baed068889096bd3e52d4cbdaRichard Smith TCK_ConstructorCall, 1646c764830bdb6de82baed068889096bd3e52d4cbdaRichard Smith /// Checking the operand of a static_cast to a derived pointer type. Must be 1647c764830bdb6de82baed068889096bd3e52d4cbdaRichard Smith /// null or an object within its lifetime. 1648c764830bdb6de82baed068889096bd3e52d4cbdaRichard Smith TCK_DowncastPointer, 1649c764830bdb6de82baed068889096bd3e52d4cbdaRichard Smith /// Checking the operand of a static_cast to a derived reference type. Must 1650c764830bdb6de82baed068889096bd3e52d4cbdaRichard Smith /// be an object within its lifetime. 1651c764830bdb6de82baed068889096bd3e52d4cbdaRichard Smith TCK_DowncastReference 16522c9f87ca5cccbfdaad82762368af5b2323320653Richard Smith }; 16532c9f87ca5cccbfdaad82762368af5b2323320653Richard Smith 16547ac9ef1c82c779a5348ed11b3d10e01c58803b35Richard Smith /// \brief Emit a check that \p V is the address of storage of the 16552c9f87ca5cccbfdaad82762368af5b2323320653Richard Smith /// appropriate size and alignment for an object of type \p Type. 16564def70d3040e73707c738f7c366737a986135edfRichard Smith void EmitTypeCheck(TypeCheckKind TCK, SourceLocation Loc, llvm::Value *V, 16577ac9ef1c82c779a5348ed11b3d10e01c58803b35Richard Smith QualType Type, CharUnits Alignment = CharUnits::Zero()); 1658b14e62d5aee7522b98c410ee65bd750c2cfe6f01Mike Stump 1659a0a628f839cf50844cc0f226bd9cb72485f98f91Richard Smith /// \brief Emit a check that \p Base points into an array object, which 1660a0a628f839cf50844cc0f226bd9cb72485f98f91Richard Smith /// we can access at index \p Index. \p Accessed should be \c false if we 1661a0a628f839cf50844cc0f226bd9cb72485f98f91Richard Smith /// this expression is used as an lvalue, for instance in "&Arr[Idx]". 1662a0a628f839cf50844cc0f226bd9cb72485f98f91Richard Smith void EmitBoundsCheck(const Expr *E, const Expr *Base, llvm::Value *Index, 1663a0a628f839cf50844cc0f226bd9cb72485f98f91Richard Smith QualType IndexType, bool Accessed); 1664a0a628f839cf50844cc0f226bd9cb72485f98f91Richard Smith 1665dd36d328730d8c02915d0884541b45ec6ca0049dChris Lattner llvm::Value *EmitScalarPrePostIncDec(const UnaryOperator *E, LValue LV, 1666dd36d328730d8c02915d0884541b45ec6ca0049dChris Lattner bool isInc, bool isPre); 1667dd36d328730d8c02915d0884541b45ec6ca0049dChris Lattner ComplexPairTy EmitComplexPrePostIncDec(const UnaryOperator *E, LValue LV, 1668dd36d328730d8c02915d0884541b45ec6ca0049dChris Lattner bool isInc, bool isPre); 16695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 16705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Declaration Emission 16715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 16720dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1673d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// EmitDecl - Emit a declaration. 1674d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// 1675d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// This function can be called with a null (unreachable) insert point. 16765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitDecl(const Decl &D); 1677d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar 1678b6bbcc9995186799a60ce17d0c1acff31601653aJohn McCall /// EmitVarDecl - Emit a local variable declaration. 1679d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// 1680d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// This function can be called with a null (unreachable) insert point. 1681b6bbcc9995186799a60ce17d0c1acff31601653aJohn McCall void EmitVarDecl(const VarDecl &D); 1682d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar 1683f85e193739c953358c865005855253af4f68a497John McCall void EmitScalarInit(const Expr *init, const ValueDecl *D, 1684a07398ed98ea2b55ad7a505a3aab18aed93b149fJohn McCall LValue lvalue, bool capturedByInit); 16857acddacc921cd0b3f813443a8641eeddb82dfbd4John McCall void EmitScalarInit(llvm::Value *init, LValue lvalue); 1686f85e193739c953358c865005855253af4f68a497John McCall 1687f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall typedef void SpecialInitFn(CodeGenFunction &Init, const VarDecl &D, 1688f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::Value *Address); 1689f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 1690b6bbcc9995186799a60ce17d0c1acff31601653aJohn McCall /// EmitAutoVarDecl - Emit an auto variable declaration. 1691d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// 1692d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// This function can be called with a null (unreachable) insert point. 169334695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall void EmitAutoVarDecl(const VarDecl &D); 169434695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall 169534695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall class AutoVarEmission { 169634695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall friend class CodeGenFunction; 169734695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall 169857b3b6a60856eaec30fd876a8a3face8f7e3ad7bJohn McCall const VarDecl *Variable; 169934695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall 170034695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall /// The alignment of the variable. 170134695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall CharUnits Alignment; 170234695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall 170334695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall /// The address of the alloca. Null if the variable was emitted 170434695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall /// as a global constant. 170534695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall llvm::Value *Address; 170634695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall 170734695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall llvm::Value *NRVOFlag; 170834695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall 170934695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall /// True if the variable is a __block variable. 171034695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall bool IsByRef; 171134695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall 171234695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall /// True if the variable is of aggregate type and has a constant 171334695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall /// initializer. 171434695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall bool IsConstantAggregate; 171534695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall 1716495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem /// Non-null if we should use lifetime annotations. 1717495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem llvm::Value *SizeForLifetimeMarkers; 1718495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem 171957b3b6a60856eaec30fd876a8a3face8f7e3ad7bJohn McCall struct Invalid {}; 172057b3b6a60856eaec30fd876a8a3face8f7e3ad7bJohn McCall AutoVarEmission(Invalid) : Variable(0) {} 172157b3b6a60856eaec30fd876a8a3face8f7e3ad7bJohn McCall 172234695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall AutoVarEmission(const VarDecl &variable) 172357b3b6a60856eaec30fd876a8a3face8f7e3ad7bJohn McCall : Variable(&variable), Address(0), NRVOFlag(0), 1724495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem IsByRef(false), IsConstantAggregate(false), 1725495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem SizeForLifetimeMarkers(0) {} 172634695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall 172734695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall bool wasEmittedAsGlobal() const { return Address == 0; } 172834695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall 172934695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall public: 173057b3b6a60856eaec30fd876a8a3face8f7e3ad7bJohn McCall static AutoVarEmission invalid() { return AutoVarEmission(Invalid()); } 1731495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem 1732495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem bool useLifetimeMarkers() const { return SizeForLifetimeMarkers != 0; } 1733495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem llvm::Value *getSizeForLifetimeMarkers() const { 1734495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem assert(useLifetimeMarkers()); 1735495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem return SizeForLifetimeMarkers; 1736495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem } 1737495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem 1738495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem /// Returns the raw, allocated address, which is not necessarily 1739495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem /// the address of the object itself. 1740495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem llvm::Value *getAllocatedAddress() const { 1741495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem return Address; 1742495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem } 174357b3b6a60856eaec30fd876a8a3face8f7e3ad7bJohn McCall 174434695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall /// Returns the address of the object within this declaration. 174534695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall /// Note that this does not chase the forwarding pointer for 174634695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall /// __block decls. 174734695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall llvm::Value *getObjectAddress(CodeGenFunction &CGF) const { 174834695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall if (!IsByRef) return Address; 174934695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall 175034695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall return CGF.Builder.CreateStructGEP(Address, 175157b3b6a60856eaec30fd876a8a3face8f7e3ad7bJohn McCall CGF.getByRefValueLLVMField(Variable), 175257b3b6a60856eaec30fd876a8a3face8f7e3ad7bJohn McCall Variable->getNameAsString()); 175334695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall } 175434695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall }; 175534695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall AutoVarEmission EmitAutoVarAlloca(const VarDecl &var); 175634695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall void EmitAutoVarInit(const AutoVarEmission &emission); 175734695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall void EmitAutoVarCleanups(const AutoVarEmission &emission); 1758bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall void emitAutoVarTypeCleanup(const AutoVarEmission &emission, 1759bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall QualType::DestructionKind dtorKind); 1760d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar 1761b6bbcc9995186799a60ce17d0c1acff31601653aJohn McCall void EmitStaticVarDecl(const VarDecl &D, 1762b6bbcc9995186799a60ce17d0c1acff31601653aJohn McCall llvm::GlobalValue::LinkageTypes Linkage); 1763b7ec246872b412f0e7bb9e93eacfd78cfa6adfb3Daniel Dunbar 1764b7ec246872b412f0e7bb9e93eacfd78cfa6adfb3Daniel Dunbar /// EmitParmDecl - Emit a ParmVarDecl or an ImplicitParamDecl. 1765093ac461b37a573dcf226fa55faed96f318169b9Devang Patel void EmitParmDecl(const VarDecl &D, llvm::Value *Arg, unsigned ArgNo); 17660dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 176756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// protectFromPeepholes - Protect a value that we're intending to 176856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// store to the side, but which will probably be used later, from 176956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// aggressive peepholing optimizations that might delete it. 177056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// 177156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// Pass the result to unprotectFromPeepholes to declare that 177256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// protection is no longer required. 177356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// 177456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// There's no particular reason why this shouldn't apply to 177556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// l-values, it's just that no existing peepholes work on pointers. 177656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall PeepholeProtection protectFromPeepholes(RValue rvalue); 177756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall void unprotectFromPeepholes(PeepholeProtection protection); 177856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 17795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 17805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Statement Emission 17815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 17825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 17830dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitStopPoint - Emit a debug stoppoint if we are emitting debug info. 17840912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar void EmitStopPoint(const Stmt *S); 17850912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar 17860dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitStmt - Emit the code for the statement \arg S. It is legal to call 17870dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// this function even if there is no current insertion point. 17880dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// 17890dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// This function may clear the current insertion point; callers should use 17900dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EnsureInsertPoint if they wish to subsequently generate code without first 17910dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// calling EmitBlock, EmitBranch, or EmitStmt. 17925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitStmt(const Stmt *S); 1793a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 17940912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar /// EmitSimpleStmt - Try to emit a "simple" statement which does not 17950dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// necessarily require an insertion point or debug information; typically 17960dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// because the statement amounts to a jump or a container of other 17970dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// statements. 17980912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar /// 17990912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar /// \return True if the statement was handled. 18000912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar bool EmitSimpleStmt(const Stmt *S); 18010912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar 18022ac2fa7726eb2f6fe445e098489e92931c31f7caEli Friedman llvm::Value *EmitCompoundStmt(const CompoundStmt &S, bool GetLast = false, 18032ac2fa7726eb2f6fe445e098489e92931c31f7caEli Friedman AggValueSlot AVS = AggValueSlot::ignored()); 18042ac2fa7726eb2f6fe445e098489e92931c31f7caEli Friedman llvm::Value *EmitCompoundStmtWithoutScope(const CompoundStmt &S, 18052ac2fa7726eb2f6fe445e098489e92931c31f7caEli Friedman bool GetLast = false, 18062ac2fa7726eb2f6fe445e098489e92931c31f7caEli Friedman AggValueSlot AVS = 18072ac2fa7726eb2f6fe445e098489e92931c31f7caEli Friedman AggValueSlot::ignored()); 1808a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 18090dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitLabel - Emit the block for the given label. It is legal to call this 18100dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// function even if there is no current insertion point. 1811ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner void EmitLabel(const LabelDecl *D); // helper for EmitLabelStmt. 1812a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 18135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitLabelStmt(const LabelStmt &S); 1814534986f2b21e6050bf00163cd6423fd92155a6edRichard Smith void EmitAttributedStmt(const AttributedStmt &S); 18155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitGotoStmt(const GotoStmt &S); 18160ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar void EmitIndirectGotoStmt(const IndirectGotoStmt &S); 18175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitIfStmt(const IfStmt &S); 18185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitWhileStmt(const WhileStmt &S); 18195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitDoStmt(const DoStmt &S); 18205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitForStmt(const ForStmt &S); 18215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitReturnStmt(const ReturnStmt &S); 18225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitDeclStmt(const DeclStmt &S); 18230912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar void EmitBreakStmt(const BreakStmt &S); 18240912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar void EmitContinueStmt(const ContinueStmt &S); 182551b09f2c528c8460b5465c676173324e44176d62Devang Patel void EmitSwitchStmt(const SwitchStmt &S); 182651b09f2c528c8460b5465c676173324e44176d62Devang Patel void EmitDefaultStmt(const DefaultStmt &S); 182751b09f2c528c8460b5465c676173324e44176d62Devang Patel void EmitCaseStmt(const CaseStmt &S); 1828c049e4f406a7f7179eba98659044a32508e53289Devang Patel void EmitCaseStmtRange(const CaseStmt &S); 1829a23b91d542e336be5051ac54f394e860fb756911Chad Rosier void EmitAsmStmt(const AsmStmt &S); 18300dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 18313d8400d9a61aa4b63ff35e5cede405b32a41425eAnders Carlsson void EmitObjCForCollectionStmt(const ObjCForCollectionStmt &S); 183264d5d6c5903157c521af496479d06dc26032d718Anders Carlsson void EmitObjCAtTryStmt(const ObjCAtTryStmt &S); 183364d5d6c5903157c521af496479d06dc26032d718Anders Carlsson void EmitObjCAtThrowStmt(const ObjCAtThrowStmt &S); 183410cac6f7115b59a466bb8d2d51cdddeb38aadc37Chris Lattner void EmitObjCAtSynchronizedStmt(const ObjCAtSynchronizedStmt &S); 1835f85e193739c953358c865005855253af4f68a497John McCall void EmitObjCAutoreleasePoolStmt(const ObjCAutoreleasePoolStmt &S); 18360dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 183793c332a8ba2c193c435b293966d343dab15f555bJohn McCall llvm::Constant *getUnwindResumeFn(); 183886a3a03667bdb0dcab7e6a2877dfd234b07a6d43Douglas Gregor llvm::Constant *getUnwindResumeOrRethrowFn(); 183959a7000a79118e4c140885ccbb2ac6a686a73092John McCall void EnterCXXTryStmt(const CXXTryStmt &S, bool IsFnTryBlock = false); 184059a7000a79118e4c140885ccbb2ac6a686a73092John McCall void ExitCXXTryStmt(const CXXTryStmt &S, bool IsFnTryBlock = false); 18419fc6a7774643a810c8501dae2323e863fefb623eJohn McCall 18426815e941998659a55c20c147861b0f437928c3d8Anders Carlsson void EmitCXXTryStmt(const CXXTryStmt &S); 184398592d9c4dff79480fdc25b83988de03f912b647Reid Kleckner void EmitSEHTryStmt(const SEHTryStmt &S); 1844ad762fcdc16b9e4705b12b09d92b8c026212b906Richard Smith void EmitCXXForRangeStmt(const CXXForRangeStmt &S); 18459cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 1846524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir llvm::Function *EmitCapturedStmt(const CapturedStmt &S, CapturedRegionKind K); 1847524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir llvm::Function *GenerateCapturedStmtFunction(const CapturedDecl *CD, 18484ee7dc2369c1f0257a73b2e83a7d38fdebdd9176Nick Lewycky const RecordDecl *RD, 18494ee7dc2369c1f0257a73b2e83a7d38fdebdd9176Nick Lewycky SourceLocation Loc); 1850524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir 18515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 18525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // LValue Expression Emission 18535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 18545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 185513e81737a433b23f8c662d10d1d57356122a8caaDaniel Dunbar /// GetUndefRValue - Get an appropriate 'undef' rvalue for the given type. 185613e81737a433b23f8c662d10d1d57356122a8caaDaniel Dunbar RValue GetUndefRValue(QualType Ty); 185713e81737a433b23f8c662d10d1d57356122a8caaDaniel Dunbar 1858ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar /// EmitUnsupportedRValue - Emit a dummy r-value using the type of E 1859ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar /// and issue an ErrorUnsupported style diagnostic (using the 1860ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar /// provided Name). 1861ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar RValue EmitUnsupportedRValue(const Expr *E, 1862ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar const char *Name); 1863ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar 18640dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitUnsupportedLValue - Emit a dummy l-value using the type of E and issue 18650dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// an ErrorUnsupported style diagnostic (using the provided Name). 18666ba82a4a4b295e54cf192c3e98b28f39990c6194Daniel Dunbar LValue EmitUnsupportedLValue(const Expr *E, 18676ba82a4a4b295e54cf192c3e98b28f39990c6194Daniel Dunbar const char *Name); 18686ba82a4a4b295e54cf192c3e98b28f39990c6194Daniel Dunbar 18695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EmitLValue - Emit code to compute a designator that specifies the location 18705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// of the expression. 18715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 18725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// This can return one of two things: a simple address or a bitfield 18735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// reference. In either case, the LLVM Value* in the LValue structure is 18745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// guaranteed to be an LLVM pointer type. 18755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 18765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// If this returns a bitfield reference, nothing about the pointee type of 18775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// the LLVM value is known: For example, it may not be a pointer to an 18785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// integer. 18795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 18805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// If this returns a normal address, and if the lvalue's C type is fixed 18815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// size, this method guarantees that the returned pointer type will point to 18825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// an LLVM type of the same size of the lvalue's type. If the lvalue has a 18835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// variable length type, this is not possible. 18845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 18855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitLValue(const Expr *E); 18860dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 18877ac9ef1c82c779a5348ed11b3d10e01c58803b35Richard Smith /// \brief Same as EmitLValue but additionally we generate checking code to 18887ac9ef1c82c779a5348ed11b3d10e01c58803b35Richard Smith /// guard against undefined behavior. This is only suitable when we know 18897ac9ef1c82c779a5348ed11b3d10e01c58803b35Richard Smith /// that the address will be used to access the object. 18907ac9ef1c82c779a5348ed11b3d10e01c58803b35Richard Smith LValue EmitCheckedLValue(const Expr *E, TypeCheckKind TCK); 1891b14e62d5aee7522b98c410ee65bd750c2cfe6f01Mike Stump 18924ee7dc2369c1f0257a73b2e83a7d38fdebdd9176Nick Lewycky RValue convertTempToRValue(llvm::Value *addr, QualType type, 18934ee7dc2369c1f0257a73b2e83a7d38fdebdd9176Nick Lewycky SourceLocation Loc); 18949d232c884ea9872d6555df0fd7359699819bc1f1John McCall 18959eda3abe7e183b05834947391c0cdc291f4ee0d8John McCall void EmitAtomicInit(Expr *E, LValue lvalue); 18969eda3abe7e183b05834947391c0cdc291f4ee0d8John McCall 18974ee7dc2369c1f0257a73b2e83a7d38fdebdd9176Nick Lewycky RValue EmitAtomicLoad(LValue lvalue, SourceLocation loc, 18989eda3abe7e183b05834947391c0cdc291f4ee0d8John McCall AggValueSlot slot = AggValueSlot::ignored()); 18999eda3abe7e183b05834947391c0cdc291f4ee0d8John McCall 19009eda3abe7e183b05834947391c0cdc291f4ee0d8John McCall void EmitAtomicStore(RValue rvalue, LValue lvalue, bool isInit); 19019eda3abe7e183b05834947391c0cdc291f4ee0d8John McCall 190226815d97c5743481e317f17a8d53a6819d061862John McCall /// EmitToMemory - Change a scalar value from its value 190326815d97c5743481e317f17a8d53a6819d061862John McCall /// representation to its in-memory representation. 190426815d97c5743481e317f17a8d53a6819d061862John McCall llvm::Value *EmitToMemory(llvm::Value *Value, QualType Ty); 190526815d97c5743481e317f17a8d53a6819d061862John McCall 190626815d97c5743481e317f17a8d53a6819d061862John McCall /// EmitFromMemory - Change a scalar value from its memory 190726815d97c5743481e317f17a8d53a6819d061862John McCall /// representation to its value representation. 190826815d97c5743481e317f17a8d53a6819d061862John McCall llvm::Value *EmitFromMemory(llvm::Value *Value, QualType Ty); 190926815d97c5743481e317f17a8d53a6819d061862John McCall 19109d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// EmitLoadOfScalar - Load a scalar value from an address, taking 19119d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// care to appropriately convert from the memory representation to 19129d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// the LLVM value representation. 191309429b962811f2c0a7a81a1b0a89f96f5878b20cMike Stump llvm::Value *EmitLoadOfScalar(llvm::Value *Addr, bool Volatile, 19143d5aff5d3036b0ff09d114857cd2276134b3d8c9Dan Gohman unsigned Alignment, QualType Ty, 19154ee7dc2369c1f0257a73b2e83a7d38fdebdd9176Nick Lewycky SourceLocation Loc, 1916b37a73d5c6a0c8bb1f6e363d3b53980e4fa0ceadManman Ren llvm::MDNode *TBAAInfo = 0, 1917b37a73d5c6a0c8bb1f6e363d3b53980e4fa0ceadManman Ren QualType TBAABaseTy = QualType(), 1918b37a73d5c6a0c8bb1f6e363d3b53980e4fa0ceadManman Ren uint64_t TBAAOffset = 0); 1919545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall 1920545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall /// EmitLoadOfScalar - Load a scalar value from an address, taking 1921545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall /// care to appropriately convert from the memory representation to 1922545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall /// the LLVM value representation. The l-value must be a simple 1923545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall /// l-value. 19244ee7dc2369c1f0257a73b2e83a7d38fdebdd9176Nick Lewycky llvm::Value *EmitLoadOfScalar(LValue lvalue, SourceLocation Loc); 19259d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar 19269d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// EmitStoreOfScalar - Store a scalar value to an address, taking 19279d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// care to appropriately convert from the memory representation to 19289d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// the LLVM value representation. 192909429b962811f2c0a7a81a1b0a89f96f5878b20cMike Stump void EmitStoreOfScalar(llvm::Value *Value, llvm::Value *Addr, 19303d5aff5d3036b0ff09d114857cd2276134b3d8c9Dan Gohman bool Volatile, unsigned Alignment, QualType Ty, 1931b37a73d5c6a0c8bb1f6e363d3b53980e4fa0ceadManman Ren llvm::MDNode *TBAAInfo = 0, bool isInit = false, 1932b37a73d5c6a0c8bb1f6e363d3b53980e4fa0ceadManman Ren QualType TBAABaseTy = QualType(), 1933b37a73d5c6a0c8bb1f6e363d3b53980e4fa0ceadManman Ren uint64_t TBAAOffset = 0); 1934545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall 1935545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall /// EmitStoreOfScalar - Store a scalar value to an address, taking 1936545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall /// care to appropriately convert from the memory representation to 1937545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall /// the LLVM value representation. The l-value must be a simple 19387a7ee3033e44b45630981355460ef89efa0bdcc4David Chisnall /// l-value. The isInit flag indicates whether this is an initialization. 19397a7ee3033e44b45630981355460ef89efa0bdcc4David Chisnall /// If so, atomic qualifiers are ignored and the store is always non-atomic. 19407a7ee3033e44b45630981355460ef89efa0bdcc4David Chisnall void EmitStoreOfScalar(llvm::Value *value, LValue lvalue, bool isInit=false); 19419d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar 19425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EmitLoadOfLValue - Given an expression that represents a value lvalue, 19435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// this method emits the address of the lvalue, then loads the result as an 19445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// rvalue, returning the rvalue. 19454ee7dc2369c1f0257a73b2e83a7d38fdebdd9176Nick Lewycky RValue EmitLoadOfLValue(LValue V, SourceLocation Loc); 1946545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall RValue EmitLoadOfExtVectorElementLValue(LValue V); 1947545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall RValue EmitLoadOfBitfieldLValue(LValue LV); 19480dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 19495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EmitStoreThroughLValue - Store the specified rvalue into the specified 19505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// lvalue, where both are guaranteed to the have the same type, and that type 19515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// is 'Ty'. 19527a7ee3033e44b45630981355460ef89efa0bdcc4David Chisnall void EmitStoreThroughLValue(RValue Src, LValue Dst, bool isInit=false); 1953545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall void EmitStoreThroughExtVectorComponentLValue(RValue Src, LValue Dst); 1954ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar 19554ee7dc2369c1f0257a73b2e83a7d38fdebdd9176Nick Lewycky /// EmitStoreThroughBitfieldLValue - Store Src into Dst with same constraints 19564ee7dc2369c1f0257a73b2e83a7d38fdebdd9176Nick Lewycky /// as EmitStoreThroughLValue. 1957ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar /// 19580dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// \param Result [out] - If non-null, this will be set to a Value* for the 19590dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// bit-field contents after the store, appropriate for use as the result of 19600dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// an assignment to the bit-field. 1961545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall void EmitStoreThroughBitfieldLValue(RValue Src, LValue Dst, 1962ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar llvm::Value **Result=0); 19630dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 196483ce9d4a552987d34cbd500e983db8d770232379John McCall /// Emit an l-value for an assignment (simple or compound) of complex type. 196583ce9d4a552987d34cbd500e983db8d770232379John McCall LValue EmitComplexAssignmentLValue(const BinaryOperator *E); 19662a41637a995affa1563f4d82a8b026e326a2faa0John McCall LValue EmitComplexCompoundAssignmentLValue(const CompoundAssignOperator *E); 19670934e18b620ecaa6c7ec18ba5c4286b6122d6fb8Eli Friedman LValue EmitScalarCompooundAssignWithComplex(const CompoundAssignOperator *E, 19680934e18b620ecaa6c7ec18ba5c4286b6122d6fb8Eli Friedman llvm::Value *&Result); 196983ce9d4a552987d34cbd500e983db8d770232379John McCall 1970fc8f0e14ad142ed811e90fbd9a30e419e301c717Chris Lattner // Note: only available for agg return types 197180e62c29fe21cd06c93eba6e72b7e32dca06fcf9Daniel Dunbar LValue EmitBinaryOperatorLValue(const BinaryOperator *E); 19722a41637a995affa1563f4d82a8b026e326a2faa0John McCall LValue EmitCompoundAssignmentLValue(const CompoundAssignOperator *E); 19735b5c9ef865607e179413462dcd71bcebb5b7daaeDaniel Dunbar // Note: only available for agg return types 197422c940ee588a420cd2e6c8f68be2ac3cc80061ffChristopher Lamb LValue EmitCallExprLValue(const CallExpr *E); 19755b5c9ef865607e179413462dcd71bcebb5b7daaeDaniel Dunbar // Note: only available for agg return types 19765b5c9ef865607e179413462dcd71bcebb5b7daaeDaniel Dunbar LValue EmitVAArgExprLValue(const VAArgExpr *E); 19775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitDeclRefLValue(const DeclRefExpr *E); 19785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitStringLiteralLValue(const StringLiteral *E); 1979eaf2bb89eb2aad3b80673de30febe52df43c10ecChris Lattner LValue EmitObjCEncodeExprLValue(const ObjCEncodeExpr *E); 1980d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner LValue EmitPredefinedLValue(const PredefinedExpr *E); 19815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitUnaryOpLValue(const UnaryOperator *E); 1982a0a628f839cf50844cc0f226bd9cb72485f98f91Richard Smith LValue EmitArraySubscriptExpr(const ArraySubscriptExpr *E, 1983a0a628f839cf50844cc0f226bd9cb72485f98f91Richard Smith bool Accessed = false); 1984213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman LValue EmitExtVectorElementExpr(const ExtVectorElementExpr *E); 1985b84a06e68ffd71da22e3c75b6e4bbdba37816413Devang Patel LValue EmitMemberExpr(const MemberExpr *E); 1986820bca41c3899374775d2a1dfc2ef2e22aaf1c7bFariborz Jahanian LValue EmitObjCIsaExpr(const ObjCIsaExpr *E); 198706e863f2902b8ba55b056308875c19f7ba3dab25Eli Friedman LValue EmitCompoundLiteralLValue(const CompoundLiteralExpr *E); 198813ec9100ca6bc03b5ce8832e4a0fcb724d47bcb1Richard Smith LValue EmitInitListLValue(const InitListExpr *E); 198956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall LValue EmitConditionalOperatorLValue(const AbstractConditionalOperator *E); 199075dfedaf702822c9e51a4f3c5d3ecf2d2ad99272Chris Lattner LValue EmitCastLValue(const CastExpr *E); 199103e80030515c800d1ab44125b9052dfffd1bd04cDouglas Gregor LValue EmitMaterializeTemporaryExpr(const MaterializeTemporaryExpr *E); 1992e996ffd240f20a1048179d7727a6ee3227261921John McCall LValue EmitOpaqueValueLValue(const OpaqueValueExpr *e); 19939cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 19944ee7dc2369c1f0257a73b2e83a7d38fdebdd9176Nick Lewycky RValue EmitRValueForField(LValue LV, const FieldDecl *FD, SourceLocation Loc); 1995eaf856db5d1a272dc7188937206ef4572836f82aAnton Korobeynikov 1996dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall class ConstantEmission { 1997dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall llvm::PointerIntPair<llvm::Constant*, 1, bool> ValueAndIsReference; 1998dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall ConstantEmission(llvm::Constant *C, bool isReference) 1999dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall : ValueAndIsReference(C, isReference) {} 2000dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall public: 2001dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall ConstantEmission() {} 2002dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall static ConstantEmission forReference(llvm::Constant *C) { 2003dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall return ConstantEmission(C, true); 2004dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall } 2005dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall static ConstantEmission forValue(llvm::Constant *C) { 2006dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall return ConstantEmission(C, false); 2007dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall } 2008dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall 20097247c88d1e41514a41085f83ebf03dd5220e054aDavid Blaikie LLVM_EXPLICIT operator bool() const { return ValueAndIsReference.getOpaqueValue() != 0; } 2010dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall 2011dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall bool isReference() const { return ValueAndIsReference.getInt(); } 2012dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall LValue getReferenceLValue(CodeGenFunction &CGF, Expr *refExpr) const { 2013dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall assert(isReference()); 2014dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall return CGF.MakeNaturalAlignAddrLValue(ValueAndIsReference.getPointer(), 2015dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall refExpr->getType()); 2016dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall } 2017dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall 2018dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall llvm::Constant *getValue() const { 2019dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall assert(!isReference()); 2020dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall return ValueAndIsReference.getPointer(); 2021dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall } 2022dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall }; 2023dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall 2024f4b88a45902af1802a1cb42ba48b1c474474f228John McCall ConstantEmission tryEmitAsConstant(DeclRefExpr *refExpr); 2025dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall 20264b9c2d235fb9449e249d74f48ecfec601650de93John McCall RValue EmitPseudoObjectRValue(const PseudoObjectExpr *e, 20274b9c2d235fb9449e249d74f48ecfec601650de93John McCall AggValueSlot slot = AggValueSlot::ignored()); 20284b9c2d235fb9449e249d74f48ecfec601650de93John McCall LValue EmitPseudoObjectLValue(const PseudoObjectExpr *e); 20294b9c2d235fb9449e249d74f48ecfec601650de93John McCall 20302a03192a02dbf4fdff438d1e658356bde871aba4Daniel Dunbar llvm::Value *EmitIvarOffset(const ObjCInterfaceDecl *Interface, 203129e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar const ObjCIvarDecl *Ivar); 2032377ecc7996dce6803f7b7b6208cab5e197c9c5b8Eli Friedman LValue EmitLValueForField(LValue Base, const FieldDecl* Field); 2033f5ebf9bf1df10ac15ba32a4b24dfe171b7848c58John McCall LValue EmitLValueForLambdaField(const FieldDecl *Field); 20349cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 203506a2970e9480c6d02b367b2f970baff29b9f9721Anders Carlsson /// EmitLValueForFieldInitialization - Like EmitLValueForField, except that 203606a2970e9480c6d02b367b2f970baff29b9f9721Anders Carlsson /// if the Field is a reference, this will return the address of the reference 203706a2970e9480c6d02b367b2f970baff29b9f9721Anders Carlsson /// and not the address of the value stored in the reference. 2038377ecc7996dce6803f7b7b6208cab5e197c9c5b8Eli Friedman LValue EmitLValueForFieldInitialization(LValue Base, 2039377ecc7996dce6803f7b7b6208cab5e197c9c5b8Eli Friedman const FieldDecl* Field); 20409cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 204145012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian LValue EmitLValueForIvar(QualType ObjectTy, 204245012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian llvm::Value* Base, const ObjCIvarDecl *Ivar, 204329e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar unsigned CVRQualifiers); 2044fd64bb635dc221baa19f81d5d2a084f7eb269f7fFariborz Jahanian 2045b58d017f2b9eeed33f2ab3ede968b89cf5296bf2Anders Carlsson LValue EmitCXXConstructLValue(const CXXConstructExpr *E); 2046e61c9e80a108b5db7e5f0e702f0e455d737c6390Anders Carlsson LValue EmitCXXBindTemporaryLValue(const CXXBindTemporaryExpr *E); 204731a3702618ab49578542cffee20ba0c8859b9d1eEli Friedman LValue EmitLambdaLValue(const LambdaExpr *E); 2048c2e84ae9a6d25cea3e583c768e576b4c981ec028Mike Stump LValue EmitCXXTypeidLValue(const CXXTypeidExpr *E); 2049c5f804636e367ef744fd24cf88f7c956a5af0434Nico Weber LValue EmitCXXUuidofLValue(const CXXUuidofExpr *E); 20509cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 20510a04d77bde7e3a661c2b41b60630d125d09ed6efDaniel Dunbar LValue EmitObjCMessageExprLValue(const ObjCMessageExpr *E); 2052391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner LValue EmitObjCIvarRefLValue(const ObjCIvarRefExpr *E); 2053654599454c8e6cc83b1b9b3af43c49c2f66a26cbChris Lattner LValue EmitStmtExprLValue(const StmtExpr *E); 20548bfd31f9dad09cd52225d868bbd92a9bebe87775Fariborz Jahanian LValue EmitPointerToDataMemberBinaryExpr(const BinaryOperator *E); 205503b2960c14aede6ac82bdef32247094ebb72fa69Fariborz Jahanian LValue EmitObjCSelectorLValue(const ObjCSelectorExpr *E); 20563b8e0b7f96164e8c49d2a833da26edd960f5da1fYunzhong Gao void EmitDeclRefExprDbgValue(const DeclRefExpr *E, llvm::Constant *Init); 205756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 20585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 2059883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner // Scalar Expression Emission 20605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 20615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 20620dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitCall - Generate a call of the given function, expecting the given 20630dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// result type, and using the given argument list which specifies both the 20640dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// LLVM arguments and the types they were derived from. 2065c0ef9f59937c3971c48b6fed37cf5bd8985c024bDaniel Dunbar /// 2066f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// \param TargetDecl - If given, the decl of the function in a direct call; 2067f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// used to set attributes on the call (noreturn, etc.). 206888b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar RValue EmitCall(const CGFunctionInfo &FnInfo, 206988b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar llvm::Value *Callee, 2070f3c47c9525153aea2de0ec4bd615b9cf2d81c103Anders Carlsson ReturnValueSlot ReturnValue, 2071c0ef9f59937c3971c48b6fed37cf5bd8985c024bDaniel Dunbar const CallArgList &Args, 2072dd5c98f709837e5dd3da08d44d1ce407975df2cfDavid Chisnall const Decl *TargetDecl = 0, 20734b02afcb45cd1a384de7d45f440a8be091dd500bDavid Chisnall llvm::Instruction **callOrInvoke = 0); 20741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 207531777a2540879051a3c643b90e02c3fd3d315243Anders Carlsson RValue EmitCall(QualType FnType, llvm::Value *Callee, 2076b914e87377fd4d7642f544000a79f8648c6f06c9Peter Collingbourne SourceLocation CallLoc, 2077d2490a91341b57df7a7e54f8a707e7ecde2eeb4eAnders Carlsson ReturnValueSlot ReturnValue, 2078986477149db76e6d9f8d3c9859c9880c11b680aeAnders Carlsson CallExpr::const_arg_iterator ArgBeg, 2079986477149db76e6d9f8d3c9859c9880c11b680aeAnders Carlsson CallExpr::const_arg_iterator ArgEnd, 2080986477149db76e6d9f8d3c9859c9880c11b680aeAnders Carlsson const Decl *TargetDecl = 0); 20819cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer RValue EmitCallExpr(const CallExpr *E, 2082d2490a91341b57df7a7e54f8a707e7ecde2eeb4eAnders Carlsson ReturnValueSlot ReturnValue = ReturnValueSlot()); 20831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2084bd7370a78604e9a20d698bfe328c1e43f12a0613John McCall llvm::CallInst *EmitRuntimeCall(llvm::Value *callee, 2085bd7370a78604e9a20d698bfe328c1e43f12a0613John McCall const Twine &name = ""); 2086bd7370a78604e9a20d698bfe328c1e43f12a0613John McCall llvm::CallInst *EmitRuntimeCall(llvm::Value *callee, 2087bd7370a78604e9a20d698bfe328c1e43f12a0613John McCall ArrayRef<llvm::Value*> args, 2088bd7370a78604e9a20d698bfe328c1e43f12a0613John McCall const Twine &name = ""); 2089bd7370a78604e9a20d698bfe328c1e43f12a0613John McCall llvm::CallInst *EmitNounwindRuntimeCall(llvm::Value *callee, 2090bd7370a78604e9a20d698bfe328c1e43f12a0613John McCall const Twine &name = ""); 2091bd7370a78604e9a20d698bfe328c1e43f12a0613John McCall llvm::CallInst *EmitNounwindRuntimeCall(llvm::Value *callee, 2092bd7370a78604e9a20d698bfe328c1e43f12a0613John McCall ArrayRef<llvm::Value*> args, 2093bd7370a78604e9a20d698bfe328c1e43f12a0613John McCall const Twine &name = ""); 2094bd7370a78604e9a20d698bfe328c1e43f12a0613John McCall 2095f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::CallSite EmitCallOrInvoke(llvm::Value *Callee, 20962d3ba4f5a923a90c3fc290ddfba5e36c2d0a9b46Chris Lattner ArrayRef<llvm::Value *> Args, 20978cc488fefb2fb04bc8d5398da29f0182f97934cfChris Lattner const Twine &Name = ""); 20984c7d9f1507d0f102bd4133bba63348636facd469Jay Foad llvm::CallSite EmitCallOrInvoke(llvm::Value *Callee, 20998cc488fefb2fb04bc8d5398da29f0182f97934cfChris Lattner const Twine &Name = ""); 2100bd7370a78604e9a20d698bfe328c1e43f12a0613John McCall llvm::CallSite EmitRuntimeCallOrInvoke(llvm::Value *callee, 2101bd7370a78604e9a20d698bfe328c1e43f12a0613John McCall ArrayRef<llvm::Value*> args, 2102bd7370a78604e9a20d698bfe328c1e43f12a0613John McCall const Twine &name = ""); 2103bd7370a78604e9a20d698bfe328c1e43f12a0613John McCall llvm::CallSite EmitRuntimeCallOrInvoke(llvm::Value *callee, 2104bd7370a78604e9a20d698bfe328c1e43f12a0613John McCall const Twine &name = ""); 2105bd7370a78604e9a20d698bfe328c1e43f12a0613John McCall void EmitNoreturnRuntimeCallOrInvoke(llvm::Value *callee, 2106bd7370a78604e9a20d698bfe328c1e43f12a0613John McCall ArrayRef<llvm::Value*> args); 2107f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 21082726267f094a0c1f5ac5b501ec5a9898c58876bfFariborz Jahanian llvm::Value *BuildAppleKextVirtualCall(const CXXMethodDecl *MD, 21092726267f094a0c1f5ac5b501ec5a9898c58876bfFariborz Jahanian NestedNameSpecifier *Qual, 21102acc6e3feda5e4f7d9009bdcf8b1cd777fecfe2dChris Lattner llvm::Type *Ty); 2111ccd5259d33cbbdd6f5fbf7ccab4cb4a2702309eaFariborz Jahanian 2112ccd5259d33cbbdd6f5fbf7ccab4cb4a2702309eaFariborz Jahanian llvm::Value *BuildAppleKextVirtualDestructorCall(const CXXDestructorDecl *DD, 2113ccd5259d33cbbdd6f5fbf7ccab4cb4a2702309eaFariborz Jahanian CXXDtorType Type, 2114771c678c04f5f685b4f188ec6c2fd88ad0f7457fFariborz Jahanian const CXXRecordDecl *RD); 2115566abee1e9828a7700b51e4d17ea08234fde3bb4Anders Carlsson 2116b9de2c55b2a33776e2bee8ee57df7599b374c8a5Anders Carlsson RValue EmitCXXMemberCall(const CXXMethodDecl *MD, 21174def70d3040e73707c738f7c366737a986135edfRichard Smith SourceLocation CallLoc, 2118b9de2c55b2a33776e2bee8ee57df7599b374c8a5Anders Carlsson llvm::Value *Callee, 2119a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson ReturnValueSlot ReturnValue, 2120b9de2c55b2a33776e2bee8ee57df7599b374c8a5Anders Carlsson llvm::Value *This, 212159660c21178b6af518bd4b564e032d5c9cc218cbTimur Iskhodzhanov llvm::Value *ImplicitParam, 212259660c21178b6af518bd4b564e032d5c9cc218cbTimur Iskhodzhanov QualType ImplicitParamTy, 2123b9de2c55b2a33776e2bee8ee57df7599b374c8a5Anders Carlsson CallExpr::const_arg_iterator ArgBeg, 2124b9de2c55b2a33776e2bee8ee57df7599b374c8a5Anders Carlsson CallExpr::const_arg_iterator ArgEnd); 2125a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson RValue EmitCXXMemberCallExpr(const CXXMemberCallExpr *E, 2126a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson ReturnValueSlot ReturnValue); 2127a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson RValue EmitCXXMemberPointerCallExpr(const CXXMemberCallExpr *E, 2128a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson ReturnValueSlot ReturnValue); 21295549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek 2130a2447e0d1e28669cd637204a871f15b1215277fdAnders Carlsson llvm::Value *EmitCXXOperatorMemberCallee(const CXXOperatorCallExpr *E, 2131a2447e0d1e28669cd637204a871f15b1215277fdAnders Carlsson const CXXMethodDecl *MD, 2132a2447e0d1e28669cd637204a871f15b1215277fdAnders Carlsson llvm::Value *This); 21330f294632f36459174199b77699e339715244b5abAnders Carlsson RValue EmitCXXOperatorMemberCallExpr(const CXXOperatorCallExpr *E, 2134a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson const CXXMethodDecl *MD, 2135a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson ReturnValueSlot ReturnValue); 21361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21376c0aa5ff6e6253db0f993053599e2a52b5b93b2dPeter Collingbourne RValue EmitCUDAKernelCallExpr(const CUDAKernelCallExpr *E, 21386c0aa5ff6e6253db0f993053599e2a52b5b93b2dPeter Collingbourne ReturnValueSlot ReturnValue); 21396c0aa5ff6e6253db0f993053599e2a52b5b93b2dPeter Collingbourne 21409cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 21411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump RValue EmitBuiltinExpr(const FunctionDecl *FD, 2142ef2abfee3ea16ec74942dc09e9e425f46aeb2582Daniel Dunbar unsigned BuiltinID, const CallExpr *E); 21435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2144a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson RValue EmitBlockCallExpr(const CallExpr *E, ReturnValueSlot ReturnValue); 214509429b962811f2c0a7a81a1b0a89f96f5878b20cMike Stump 21460dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitTargetBuiltinExpr - Emit the given builtin call. Returns 0 if the call 21470dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// is unhandled by the current target. 2148f02e9ddf5efc75917af712b3c7f909581205f0a5Daniel Dunbar llvm::Value *EmitTargetBuiltinExpr(unsigned BuiltinID, const CallExpr *E); 2149f02e9ddf5efc75917af712b3c7f909581205f0a5Daniel Dunbar 21508137a607eebe799d95fd05226fb91119a5b054b0Kevin Qin llvm::Value *EmitAArch64CompareBuiltinExpr(llvm::Value *Op, llvm::Type *Ty, 21518137a607eebe799d95fd05226fb91119a5b054b0Kevin Qin const llvm::CmpInst::Predicate Fp, 21528137a607eebe799d95fd05226fb91119a5b054b0Kevin Qin const llvm::CmpInst::Predicate Ip, 21538137a607eebe799d95fd05226fb91119a5b054b0Kevin Qin const llvm::Twine &Name = ""); 21548137a607eebe799d95fd05226fb91119a5b054b0Kevin Qin llvm::Value *EmitAArch64CompareBuiltinExpr(llvm::Value *Op, llvm::Type *Ty); 2155ff920eec4d449bee560d8d99636ad0eb50cd9d8dTim Northover llvm::Value *EmitAArch64BuiltinExpr(unsigned BuiltinID, const CallExpr *E); 21562752c0137d95aa2f4ee1cdff4b564bac842e041bChris Lattner llvm::Value *EmitARMBuiltinExpr(unsigned BuiltinID, const CallExpr *E); 21579cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer llvm::Value *EmitNeonCall(llvm::Function *F, 2158686775deca8b8685eb90801495880e3abdd844c2Chris Lattner SmallVectorImpl<llvm::Value*> &O, 2159db3d4d036037f379f12643e067b229862d61e932Bob Wilson const char *name, 216061eecf5aea018ea65c9ab0bccacd2996b15c632dNate Begeman unsigned shift = 0, bool rightshift = false); 2161cf55652cf668c1402eee0b12edd2e5a1bc34d7a1Bob Wilson llvm::Value *EmitNeonSplat(llvm::Value *V, llvm::Constant *Idx); 21622acc6e3feda5e4f7d9009bdcf8b1cd777fecfe2dChris Lattner llvm::Value *EmitNeonShiftVector(llvm::Value *V, llvm::Type *Ty, 216361eecf5aea018ea65c9ab0bccacd2996b15c632dNate Begeman bool negateForRightShift); 21647f0ff70c391afeb7811b7ddcb06bfbbd5c6cf8f9Amaury de la Vieuville llvm::Value *EmitNeonRShiftImm(llvm::Value *Vec, llvm::Value *Amt, 21657f0ff70c391afeb7811b7ddcb06bfbbd5c6cf8f9Amaury de la Vieuville llvm::Type *Ty, bool usgn, const char *name); 21669cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 2167795b10062c2eaffae9e04241fb1a73cdbcb24a37Bill Wendling llvm::Value *BuildVector(ArrayRef<llvm::Value*> Ops); 2168564f1de67d7ba43646b8740db86d6269e3dfbe0bAnders Carlsson llvm::Value *EmitX86BuiltinExpr(unsigned BuiltinID, const CallExpr *E); 2169564f1de67d7ba43646b8740db86d6269e3dfbe0bAnders Carlsson llvm::Value *EmitPPCBuiltinExpr(unsigned BuiltinID, const CallExpr *E); 21700dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 2171ed7c618f849e2541b1d0288c43154937652c5b15Daniel Dunbar llvm::Value *EmitObjCProtocolExpr(const ObjCProtocolExpr *E); 21727f02f721d48772e4eee4fccd8af4f800be1bbc1eChris Lattner llvm::Value *EmitObjCStringLiteral(const ObjCStringLiteral *E); 2173eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard llvm::Value *EmitObjCBoxedExpr(const ObjCBoxedExpr *E); 2174ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek llvm::Value *EmitObjCArrayLiteral(const ObjCArrayLiteral *E); 2175ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek llvm::Value *EmitObjCDictionaryLiteral(const ObjCDictionaryLiteral *E); 2176ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek llvm::Value *EmitObjCCollectionLiteral(const Expr *E, 2177ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek const ObjCMethodDecl *MethodWithObjects); 21788fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner llvm::Value *EmitObjCSelectorExpr(const ObjCSelectorExpr *E); 2179ef072fd2f3347cfd857d6eb787b245b950771430John McCall RValue EmitObjCMessageExpr(const ObjCMessageExpr *E, 2180ef072fd2f3347cfd857d6eb787b245b950771430John McCall ReturnValueSlot Return = ReturnValueSlot()); 21818fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner 2182f85e193739c953358c865005855253af4f68a497John McCall /// Retrieves the default cleanup kind for an ARC cleanup. 2183f85e193739c953358c865005855253af4f68a497John McCall /// Except under -fobjc-arc-eh, ARC cleanups are normal-only. 2184f85e193739c953358c865005855253af4f68a497John McCall CleanupKind getARCCleanupKind() { 2185f85e193739c953358c865005855253af4f68a497John McCall return CGM.getCodeGenOpts().ObjCAutoRefCountExceptions 2186f85e193739c953358c865005855253af4f68a497John McCall ? NormalAndEHCleanup : NormalCleanup; 2187f85e193739c953358c865005855253af4f68a497John McCall } 2188f85e193739c953358c865005855253af4f68a497John McCall 2189f85e193739c953358c865005855253af4f68a497John McCall // ARC primitives. 2190f85e193739c953358c865005855253af4f68a497John McCall void EmitARCInitWeak(llvm::Value *value, llvm::Value *addr); 2191f85e193739c953358c865005855253af4f68a497John McCall void EmitARCDestroyWeak(llvm::Value *addr); 2192f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCLoadWeak(llvm::Value *addr); 2193f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCLoadWeakRetained(llvm::Value *addr); 2194f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCStoreWeak(llvm::Value *value, llvm::Value *addr, 2195f85e193739c953358c865005855253af4f68a497John McCall bool ignored); 2196f85e193739c953358c865005855253af4f68a497John McCall void EmitARCCopyWeak(llvm::Value *dst, llvm::Value *src); 2197f85e193739c953358c865005855253af4f68a497John McCall void EmitARCMoveWeak(llvm::Value *dst, llvm::Value *src); 2198f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCRetainAutorelease(QualType type, llvm::Value *value); 2199f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCRetainAutoreleaseNonBlock(llvm::Value *value); 2200545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall llvm::Value *EmitARCStoreStrong(LValue lvalue, llvm::Value *value, 22015b07e8077a20b80fee90bd76c43c6150c676e4a8John McCall bool resultIgnored); 2202f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCStoreStrongCall(llvm::Value *addr, llvm::Value *value, 22035b07e8077a20b80fee90bd76c43c6150c676e4a8John McCall bool resultIgnored); 2204f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCRetain(QualType type, llvm::Value *value); 2205f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCRetainNonBlock(llvm::Value *value); 2206348f16fc7c71f0d9b651cb79fd1012843073493fJohn McCall llvm::Value *EmitARCRetainBlock(llvm::Value *value, bool mandatory); 22075b07e8077a20b80fee90bd76c43c6150c676e4a8John McCall void EmitARCDestroyStrong(llvm::Value *addr, ARCPreciseLifetime_t precise); 22085b07e8077a20b80fee90bd76c43c6150c676e4a8John McCall void EmitARCRelease(llvm::Value *value, ARCPreciseLifetime_t precise); 2209f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCAutorelease(llvm::Value *value); 2210f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCAutoreleaseReturnValue(llvm::Value *value); 2211f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCRetainAutoreleaseReturnValue(llvm::Value *value); 2212f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCRetainAutoreleasedReturnValue(llvm::Value *value); 2213f85e193739c953358c865005855253af4f68a497John McCall 2214f85e193739c953358c865005855253af4f68a497John McCall std::pair<LValue,llvm::Value*> 2215f85e193739c953358c865005855253af4f68a497John McCall EmitARCStoreAutoreleasing(const BinaryOperator *e); 2216f85e193739c953358c865005855253af4f68a497John McCall std::pair<LValue,llvm::Value*> 2217f85e193739c953358c865005855253af4f68a497John McCall EmitARCStoreStrong(const BinaryOperator *e, bool ignored); 2218f85e193739c953358c865005855253af4f68a497John McCall 22192b014d6c0c6b8ac94b416ac37dfc7931f20777a7John McCall llvm::Value *EmitObjCThrowOperand(const Expr *expr); 22202b014d6c0c6b8ac94b416ac37dfc7931f20777a7John McCall 2221f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitObjCProduceObject(QualType T, llvm::Value *Ptr); 2222f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitObjCConsumeObject(QualType T, llvm::Value *Ptr); 2223f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitObjCExtendObjectLifetime(QualType T, llvm::Value *Ptr); 2224f85e193739c953358c865005855253af4f68a497John McCall 2225348f16fc7c71f0d9b651cb79fd1012843073493fJohn McCall llvm::Value *EmitARCExtendBlockObject(const Expr *expr); 2226f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCRetainScalarExpr(const Expr *expr); 2227f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCRetainAutoreleaseScalarExpr(const Expr *expr); 2228f85e193739c953358c865005855253af4f68a497John McCall 2229b6a6079449a5275c283982e19b0c38e165833bb2John McCall void EmitARCIntrinsicUse(llvm::ArrayRef<llvm::Value*> values); 2230b6a6079449a5275c283982e19b0c38e165833bb2John McCall 2231bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall static Destroyer destroyARCStrongImprecise; 2232bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall static Destroyer destroyARCStrongPrecise; 2233bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall static Destroyer destroyARCWeak; 2234bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall 2235f85e193739c953358c865005855253af4f68a497John McCall void EmitObjCAutoreleasePoolPop(llvm::Value *Ptr); 2236f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitObjCAutoreleasePoolPush(); 2237f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitObjCMRRAutoreleasePoolPush(); 2238f85e193739c953358c865005855253af4f68a497John McCall void EmitObjCAutoreleasePoolCleanup(llvm::Value *Ptr); 2239f85e193739c953358c865005855253af4f68a497John McCall void EmitObjCMRRAutoreleasePoolPop(llvm::Value *Ptr); 2240f85e193739c953358c865005855253af4f68a497John McCall 2241d4ec562b3aaf50ea9015f82c96ebfd05a35fc7efRichard Smith /// \brief Emits a reference binding to the passed in expression. 2242d4ec562b3aaf50ea9015f82c96ebfd05a35fc7efRichard Smith RValue EmitReferenceBindingToExpr(const Expr *E); 22433aba09376c5f49c4c8d176109ea4835bc2c528eeAnders Carlsson 2244883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner //===--------------------------------------------------------------------===// 2245bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattner // Expression Emission 2246883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner //===--------------------------------------------------------------------===// 2247bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattner 2248bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattner // Expressions are broken into three classes: scalar, complex, aggregate. 22490dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 22500dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitScalarExpr - Emit the computation of the specified expression of LLVM 22510dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// scalar type, returning the result. 225214c5cbf59cffee52275230922283a247de407712Anders Carlsson llvm::Value *EmitScalarExpr(const Expr *E , bool IgnoreResultAssign = false); 22530dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 22543707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner /// EmitScalarConversion - Emit a conversion from the specified type to the 22553707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner /// specified destination type, both of which are LLVM scalar types. 22563707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner llvm::Value *EmitScalarConversion(llvm::Value *Src, QualType SrcTy, 22573707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner QualType DstTy); 22580dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 22594f1a7b380809b4ca19ad2daff61bc11cd1e979d8Chris Lattner /// EmitComplexToScalarConversion - Emit a conversion from the specified 22600dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// complex type to the specified destination type, where the destination type 22610dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// is an LLVM scalar type. 22624f1a7b380809b4ca19ad2daff61bc11cd1e979d8Chris Lattner llvm::Value *EmitComplexToScalarConversion(ComplexPairTy Src, QualType SrcTy, 22634f1a7b380809b4ca19ad2daff61bc11cd1e979d8Chris Lattner QualType DstTy); 22640dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 22650dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 2266558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// EmitAggExpr - Emit the computation of the specified expression 2267558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// of aggregate type. The result is computed into the given slot, 2268558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// which may be null to indicate that the value is not needed. 2269e0c1168ec7910a1a7ed08df4d4f0c58c2fa2ecd1John McCall void EmitAggExpr(const Expr *E, AggValueSlot AS); 22700dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 227118aba0dd518e486d8b50523e7dafb4b5657135d2Daniel Dunbar /// EmitAggExprToLValue - Emit the computation of the specified expression of 227218aba0dd518e486d8b50523e7dafb4b5657135d2Daniel Dunbar /// aggregate type into a temporary LValue. 227318aba0dd518e486d8b50523e7dafb4b5657135d2Daniel Dunbar LValue EmitAggExprToLValue(const Expr *E); 227418aba0dd518e486d8b50523e7dafb4b5657135d2Daniel Dunbar 2275082b02e8403d3ee9d2ded969fbe0e5d472f04cd8Fariborz Jahanian /// EmitGCMemmoveCollectable - Emit special API for structs with object 2276082b02e8403d3ee9d2ded969fbe0e5d472f04cd8Fariborz Jahanian /// pointers. 2277082b02e8403d3ee9d2ded969fbe0e5d472f04cd8Fariborz Jahanian void EmitGCMemmoveCollectable(llvm::Value *DestPtr, llvm::Value *SrcPtr, 227808c321380fff07d476a19daab6d29522c046cd49Fariborz Jahanian QualType Ty); 2279082b02e8403d3ee9d2ded969fbe0e5d472f04cd8Fariborz Jahanian 22800c24c808e4dce43e88abf2d5f98546b901bd4315John McCall /// EmitExtendGCLifetime - Given a pointer to an Objective-C object, 22810c24c808e4dce43e88abf2d5f98546b901bd4315John McCall /// make sure it survives garbage collection until this point. 22820c24c808e4dce43e88abf2d5f98546b901bd4315John McCall void EmitExtendGCLifetime(llvm::Value *object); 22830c24c808e4dce43e88abf2d5f98546b901bd4315John McCall 2284b6ef18a2b06d6760459e1756a61f79ff496cee19Chris Lattner /// EmitComplexExpr - Emit the computation of the specified expression of 228523b1cdb0b5e089468bb8475b8ec9287af67b4b59Chris Lattner /// complex type, returning the result. 2286b418d74c11498b7e1044103131e2e3be4d63512eJohn McCall ComplexPairTy EmitComplexExpr(const Expr *E, 2287b418d74c11498b7e1044103131e2e3be4d63512eJohn McCall bool IgnoreReal = false, 2288b418d74c11498b7e1044103131e2e3be4d63512eJohn McCall bool IgnoreImag = false); 22890dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 22909d232c884ea9872d6555df0fd7359699819bc1f1John McCall /// EmitComplexExprIntoLValue - Emit the given expression of complex 22919d232c884ea9872d6555df0fd7359699819bc1f1John McCall /// type and place its result into the specified l-value. 22929d232c884ea9872d6555df0fd7359699819bc1f1John McCall void EmitComplexExprIntoLValue(const Expr *E, LValue dest, bool isInit); 22939d232c884ea9872d6555df0fd7359699819bc1f1John McCall 22949d232c884ea9872d6555df0fd7359699819bc1f1John McCall /// EmitStoreOfComplex - Store a complex number into the specified l-value. 22959d232c884ea9872d6555df0fd7359699819bc1f1John McCall void EmitStoreOfComplex(ComplexPairTy V, LValue dest, bool isInit); 22967f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar 22979d232c884ea9872d6555df0fd7359699819bc1f1John McCall /// EmitLoadOfComplex - Load a complex number from the specified l-value. 22984ee7dc2369c1f0257a73b2e83a7d38fdebdd9176Nick Lewycky ComplexPairTy EmitLoadOfComplex(LValue src, SourceLocation loc); 22992621fd1d6d3c5eadcae246859f62738645df7540Chris Lattner 2300b6bbcc9995186799a60ce17d0c1acff31601653aJohn McCall /// CreateStaticVarDecl - Create a zero-initialized LLVM global for 2301b6bbcc9995186799a60ce17d0c1acff31601653aJohn McCall /// a static local variable. 23020f30a12ce7b3d4d86c9ca9072f587da77c8eef34Chandler Carruth llvm::GlobalVariable *CreateStaticVarDecl(const VarDecl &D, 23030f30a12ce7b3d4d86c9ca9072f587da77c8eef34Chandler Carruth const char *Separator, 23040f30a12ce7b3d4d86c9ca9072f587da77c8eef34Chandler Carruth llvm::GlobalValue::LinkageTypes Linkage); 23059cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 23060f30a12ce7b3d4d86c9ca9072f587da77c8eef34Chandler Carruth /// AddInitializerToStaticVarDecl - Add the initializer for 'D' to the 23070f30a12ce7b3d4d86c9ca9072f587da77c8eef34Chandler Carruth /// global variable that has already been created for it. If the initializer 23080f30a12ce7b3d4d86c9ca9072f587da77c8eef34Chandler Carruth /// has a different type than GV does, this may free GV and return a different 23090f30a12ce7b3d4d86c9ca9072f587da77c8eef34Chandler Carruth /// one. Otherwise it just returns GV. 23100f30a12ce7b3d4d86c9ca9072f587da77c8eef34Chandler Carruth llvm::GlobalVariable * 23110f30a12ce7b3d4d86c9ca9072f587da77c8eef34Chandler Carruth AddInitializerToStaticVarDecl(const VarDecl &D, 23120f30a12ce7b3d4d86c9ca9072f587da77c8eef34Chandler Carruth llvm::GlobalVariable *GV); 23139cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 23140096acf421c4609ce7f43e8b05f8c5ca866d4611Daniel Dunbar 23153b2e16b3d25f6b311dba2871e2a566c96238c3d2Anders Carlsson /// EmitCXXGlobalVarDeclInit - Create the initializer for a C++ 23163b2e16b3d25f6b311dba2871e2a566c96238c3d2Anders Carlsson /// variable with global storage. 23177ca4850a3e3530fa6c93b64b740446e32c97f992Richard Smith void EmitCXXGlobalVarDeclInit(const VarDecl &D, llvm::Constant *DeclPtr, 23187ca4850a3e3530fa6c93b64b740446e32c97f992Richard Smith bool PerformInit); 23193b2e16b3d25f6b311dba2871e2a566c96238c3d2Anders Carlsson 232020bb175cb8ae5844034828db094fb948c0e3454aJohn McCall /// Call atexit() with a function that passes the given argument to 232120bb175cb8ae5844034828db094fb948c0e3454aJohn McCall /// the given function. 2322c7971a9efdf9880448a69aabb5182c3c27eecf6dDavid Blaikie void registerGlobalDtorWithAtExit(const VarDecl &D, llvm::Constant *fn, 2323c7971a9efdf9880448a69aabb5182c3c27eecf6dDavid Blaikie llvm::Constant *addr); 23241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23253030eb82593097502469a8b3fc26112c79c75605John McCall /// Emit code in this function to perform a guarded variable 23263030eb82593097502469a8b3fc26112c79c75605John McCall /// initialization. Guarded initializations are used when it's not 23273030eb82593097502469a8b3fc26112c79c75605John McCall /// possible to prove that an initialization will be done exactly 23283030eb82593097502469a8b3fc26112c79c75605John McCall /// once, e.g. with a static local variable or a static data member 23293030eb82593097502469a8b3fc26112c79c75605John McCall /// of a class template. 23300f30a12ce7b3d4d86c9ca9072f587da77c8eef34Chandler Carruth void EmitCXXGuardedInit(const VarDecl &D, llvm::GlobalVariable *DeclPtr, 23317ca4850a3e3530fa6c93b64b740446e32c97f992Richard Smith bool PerformInit); 23325cd91b513455fd7753e8815b54f0a49bbca6602dJohn McCall 2333efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar /// GenerateCXXGlobalInitFunc - Generates code for initializing global 2334efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar /// variables. 2335efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar void GenerateCXXGlobalInitFunc(llvm::Function *Fn, 2336c7b5f381ed41a238aa4c243f99170909f64a3414Benjamin Kramer ArrayRef<llvm::Constant *> Decls, 2337b80a16eadd0dacabfc1c32412e243ccb99dd664dRichard Smith llvm::GlobalVariable *Guard = 0); 2338efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar 23393f88f686e32949ffe02ccb551f482f9cf810358bJohn McCall /// GenerateCXXGlobalDtorsFunc - Generates code for destroying global 2340efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar /// variables. 23413f88f686e32949ffe02ccb551f482f9cf810358bJohn McCall void GenerateCXXGlobalDtorsFunc(llvm::Function *Fn, 23423f88f686e32949ffe02ccb551f482f9cf810358bJohn McCall const std::vector<std::pair<llvm::WeakVH, 23433f88f686e32949ffe02ccb551f482f9cf810358bJohn McCall llvm::Constant*> > &DtorsAndObjects); 2344efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar 2345d26bc76c98006609002d9930f8840490e88ac5b5John McCall void GenerateCXXGlobalVarDeclInitFunc(llvm::Function *Fn, 2346d26bc76c98006609002d9930f8840490e88ac5b5John McCall const VarDecl *D, 23477ca4850a3e3530fa6c93b64b740446e32c97f992Richard Smith llvm::GlobalVariable *Addr, 23487ca4850a3e3530fa6c93b64b740446e32c97f992Richard Smith bool PerformInit); 2349efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar 2350558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall void EmitCXXConstructExpr(const CXXConstructExpr *E, AggValueSlot Dest); 235134999876e215b22febc240b1a6dc054215d12f9cFariborz Jahanian 235234999876e215b22febc240b1a6dc054215d12f9cFariborz Jahanian void EmitSynthesizedCXXCopyCtor(llvm::Value *Dest, llvm::Value *Src, 2353830937bc1100fba7682f7c32c40512085870f50cFariborz Jahanian const Expr *Exp); 23541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23551a343ebbf413e8eae6b2737b2b2d79cbf5765571John McCall void enterFullExpression(const ExprWithCleanups *E) { 23561a343ebbf413e8eae6b2737b2b2d79cbf5765571John McCall if (E->getNumObjects() == 0) return; 23571a343ebbf413e8eae6b2737b2b2d79cbf5765571John McCall enterNonTrivialFullExpression(E); 23581a343ebbf413e8eae6b2737b2b2d79cbf5765571John McCall } 23591a343ebbf413e8eae6b2737b2b2d79cbf5765571John McCall void enterNonTrivialFullExpression(const ExprWithCleanups *E); 23601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23614c71b8cded575b0cfc133c5da4502ca613982094Richard Smith void EmitCXXThrowExpr(const CXXThrowExpr *E, bool KeepInsertionPoint = true); 23621eb2e59338c4b9c0429fc39ca98662adc9e7a3f2Douglas Gregor 23634c5d8afd100189b6cce4fd89bfb8aec5700acb50Eli Friedman void EmitLambdaExpr(const LambdaExpr *E, AggValueSlot Dest); 23644c5d8afd100189b6cce4fd89bfb8aec5700acb50Eli Friedman 2365276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman RValue EmitAtomicExpr(AtomicExpr *E, llvm::Value *Dest = 0); 2366276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 23670ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar //===--------------------------------------------------------------------===// 236877f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge // Annotations Emission 236977f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge //===--------------------------------------------------------------------===// 237077f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge 237177f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge /// Emit an annotation call (intrinsic or builtin). 237277f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge llvm::Value *EmitAnnotationCall(llvm::Value *AnnotationFn, 237377f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge llvm::Value *AnnotatedVal, 2374cfa88f893915ceb8ae4ce2f17c46c24a4d67502fDmitri Gribenko StringRef AnnotationStr, 237577f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge SourceLocation Location); 237677f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge 237777f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge /// Emit local annotations for the local variable V, declared by D. 237877f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge void EmitVarAnnotations(const VarDecl *D, llvm::Value *V); 237977f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge 238077f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge /// Emit field annotations for the given field & value. Returns the 238177f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge /// annotation result. 238277f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge llvm::Value *EmitFieldAnnotations(const FieldDecl *D, llvm::Value *V); 238377f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge 238477f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge //===--------------------------------------------------------------------===// 23850ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar // Internal Helpers 23860ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar //===--------------------------------------------------------------------===// 23870dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 23880946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner /// ContainsLabel - Return true if the statement contains a label in it. If 23890946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner /// this statement is not executed normally, it not containing a label means 23900946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner /// that we can just remove the code. 23910946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner static bool ContainsLabel(const Stmt *S, bool IgnoreCaseStmts = false); 23920dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 2393ef425a69006afaa87751ee41ccf8ff405d9ede70Chris Lattner /// containsBreak - Return true if the statement contains a break out of it. 2394ef425a69006afaa87751ee41ccf8ff405d9ede70Chris Lattner /// If the statement (recursively) contains a switch or loop with a break 2395ef425a69006afaa87751ee41ccf8ff405d9ede70Chris Lattner /// inside of it, this is fine. 2396ef425a69006afaa87751ee41ccf8ff405d9ede70Chris Lattner static bool containsBreak(const Stmt *S); 2397ef425a69006afaa87751ee41ccf8ff405d9ede70Chris Lattner 23984bc0455d826e9634b7a68c0d06146edd633c9453Daniel Dunbar /// ConstantFoldsToSimpleInteger - If the specified expression does not fold 2399c2c90011a688c04a4e980282f08c267e081c4b00Chris Lattner /// to a constant, or if it does but contains a label, return false. If it 2400c2c90011a688c04a4e980282f08c267e081c4b00Chris Lattner /// constant folds return true and set the boolean result in Result. 2401c2c90011a688c04a4e980282f08c267e081c4b00Chris Lattner bool ConstantFoldsToSimpleInteger(const Expr *Cond, bool &Result); 24020dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 2403ef425a69006afaa87751ee41ccf8ff405d9ede70Chris Lattner /// ConstantFoldsToSimpleInteger - If the specified expression does not fold 2404ef425a69006afaa87751ee41ccf8ff405d9ede70Chris Lattner /// to a constant, or if it does but contains a label, return false. If it 2405ef425a69006afaa87751ee41ccf8ff405d9ede70Chris Lattner /// constant folds return true and set the folded value. 2406e1ecdc168175719d74e112bcacd4aae5e12d4631Richard Trieu bool ConstantFoldsToSimpleInteger(const Expr *Cond, llvm::APSInt &Result); 2407ef425a69006afaa87751ee41ccf8ff405d9ede70Chris Lattner 240831a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// EmitBranchOnBoolExpr - Emit a branch on a boolean condition (e.g. for an 240931a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// if statement) to the specified blocks. Based on the condition, this might 241031a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// try to simplify the codegen of the conditional based on the branch. 24119bc47e29dce8f095be7a6d07dbb02a5a7a112949Chris Lattner void EmitBranchOnBoolExpr(const Expr *Cond, llvm::BasicBlock *TrueBlock, 24124bc0455d826e9634b7a68c0d06146edd633c9453Daniel Dunbar llvm::BasicBlock *FalseBlock); 2413be07f60131bc6f8d6696f4644df1ef667a1730d5Mike Stump 24144def70d3040e73707c738f7c366737a986135edfRichard Smith /// \brief Emit a description of a type in a format suitable for passing to 24154def70d3040e73707c738f7c366737a986135edfRichard Smith /// a runtime sanitizer handler. 24164def70d3040e73707c738f7c366737a986135edfRichard Smith llvm::Constant *EmitCheckTypeDescriptor(QualType T); 24174def70d3040e73707c738f7c366737a986135edfRichard Smith 24184def70d3040e73707c738f7c366737a986135edfRichard Smith /// \brief Convert a value into a format suitable for passing to a runtime 24194def70d3040e73707c738f7c366737a986135edfRichard Smith /// sanitizer handler. 24204def70d3040e73707c738f7c366737a986135edfRichard Smith llvm::Value *EmitCheckValue(llvm::Value *V); 24214def70d3040e73707c738f7c366737a986135edfRichard Smith 24224def70d3040e73707c738f7c366737a986135edfRichard Smith /// \brief Emit a description of a source location in a format suitable for 24234def70d3040e73707c738f7c366737a986135edfRichard Smith /// passing to a runtime sanitizer handler. 24244def70d3040e73707c738f7c366737a986135edfRichard Smith llvm::Constant *EmitCheckSourceLocation(SourceLocation Loc); 24254def70d3040e73707c738f7c366737a986135edfRichard Smith 2426ad95481b2769ad61f23afc5e2c31f11c66090657Will Dietz /// \brief Specify under what conditions this check can be recovered 2427ad95481b2769ad61f23afc5e2c31f11c66090657Will Dietz enum CheckRecoverableKind { 2428ad95481b2769ad61f23afc5e2c31f11c66090657Will Dietz /// Always terminate program execution if this check fails 2429ad95481b2769ad61f23afc5e2c31f11c66090657Will Dietz CRK_Unrecoverable, 2430ad95481b2769ad61f23afc5e2c31f11c66090657Will Dietz /// Check supports recovering, allows user to specify which 2431ad95481b2769ad61f23afc5e2c31f11c66090657Will Dietz CRK_Recoverable, 2432ad95481b2769ad61f23afc5e2c31f11c66090657Will Dietz /// Runtime conditionally aborts, always need to support recovery. 2433ad95481b2769ad61f23afc5e2c31f11c66090657Will Dietz CRK_AlwaysRecoverable 2434ad95481b2769ad61f23afc5e2c31f11c66090657Will Dietz }; 2435ad95481b2769ad61f23afc5e2c31f11c66090657Will Dietz 2436cc305617e952f8c3a06b63d9225d0dd7769341b7Richard Smith /// \brief Create a basic block that will call a handler function in a 2437cc305617e952f8c3a06b63d9225d0dd7769341b7Richard Smith /// sanitizer runtime with the provided arguments, and create a conditional 2438cc305617e952f8c3a06b63d9225d0dd7769341b7Richard Smith /// branch to it. 24394def70d3040e73707c738f7c366737a986135edfRichard Smith void EmitCheck(llvm::Value *Checked, StringRef CheckName, 2440cfa88f893915ceb8ae4ce2f17c46c24a4d67502fDmitri Gribenko ArrayRef<llvm::Constant *> StaticArgs, 2441cfa88f893915ceb8ae4ce2f17c46c24a4d67502fDmitri Gribenko ArrayRef<llvm::Value *> DynamicArgs, 2442ad95481b2769ad61f23afc5e2c31f11c66090657Will Dietz CheckRecoverableKind Recoverable); 24439cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 2444cc305617e952f8c3a06b63d9225d0dd7769341b7Richard Smith /// \brief Create a basic block that will call the trap intrinsic, and emit a 2445cc305617e952f8c3a06b63d9225d0dd7769341b7Richard Smith /// conditional branch to it, for the -ftrapv checks. 244678d85b1c5830a881c0a20a1b3fea99ee73149590Chad Rosier void EmitTrapCheck(llvm::Value *Checked); 2447cc305617e952f8c3a06b63d9225d0dd7769341b7Richard Smith 244821c9ad9d29d08a287292c670e7c52bc522c7f8bbAnders Carlsson /// EmitCallArg - Emit a single call argument. 2449413ebdb1af6fb0d81845b61254daf02ba0449afdJohn McCall void EmitCallArg(CallArgList &args, const Expr *E, QualType ArgType); 245021c9ad9d29d08a287292c670e7c52bc522c7f8bbAnders Carlsson 24512736071ea3a46f90e65c93418961611d96c10ab9John McCall /// EmitDelegateCallArg - We are performing a delegate call; that 24522736071ea3a46f90e65c93418961611d96c10ab9John McCall /// is, the current function is delegating to another one. Produce 24532736071ea3a46f90e65c93418961611d96c10ab9John McCall /// a r-value suitable for passing the given parameter. 24544ee7dc2369c1f0257a73b2e83a7d38fdebdd9176Nick Lewycky void EmitDelegateCallArg(CallArgList &args, const VarDecl *param, 24554ee7dc2369c1f0257a73b2e83a7d38fdebdd9176Nick Lewycky SourceLocation loc); 24562736071ea3a46f90e65c93418961611d96c10ab9John McCall 2457c5096cbf7a42e0f9012945b00d9037a5b5a88d72Peter Collingbourne /// SetFPAccuracy - Set the minimum required accuracy of the given floating 2458c5096cbf7a42e0f9012945b00d9037a5b5a88d72Peter Collingbourne /// point operation, expressed as the maximum relative error in ulp. 24598250016fb9491fcfde7fce05230d66e267944484Duncan Sands void SetFPAccuracy(llvm::Value *Val, float Accuracy); 2460c5096cbf7a42e0f9012945b00d9037a5b5a88d72Peter Collingbourne 246131a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattnerprivate: 2462c3f8955d7da1019dbe16b0bdf3e49d2e08d988e9Rafael Espindola llvm::MDNode *getRangeForLoadFromType(QualType Ty); 246329e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar void EmitReturnOfRValue(RValue RV, QualType Ty); 246429e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar 24655627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// ExpandTypeFromArgs - Reconstruct a structure of type \arg Ty 24665627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// from function arguments into \arg Dst. See ABIArgInfo::Expand. 24675627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// 24685627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// \param AI - The first function argument of the expansion. 24695627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// \return The argument following the last expanded function 24705627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// argument. 24710dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump llvm::Function::arg_iterator 24725627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar ExpandTypeFromArgs(QualType Ty, LValue Dst, 24735627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar llvm::Function::arg_iterator AI); 24745627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar 24750dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// ExpandTypeToArgs - Expand an RValue \arg Src, with the LLVM type for \arg 24760dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// Ty, into individual arguments on the provided vector \arg Args. See 24770dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// ABIArgInfo::Expand. 24780dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump void ExpandTypeToArgs(QualType Ty, RValue Src, 24796b9240e058bf3451685df73fc8ce181b3046e92bCraig Topper SmallVectorImpl<llvm::Value *> &Args, 2480811bf3669f4d82c57fe3cd3c49050fdbc95d0affChris Lattner llvm::FunctionType *IRFuncTy); 2481c8c7b187adcd989e01a9fba1ebead6c2abd770c9Anders Carlsson 248242b60551eff3a424e191b293bfd606559dc96bffChad Rosier llvm::Value* EmitAsmInput(const TargetInfo::ConstraintInfo &Info, 2483c8c7b187adcd989e01a9fba1ebead6c2abd770c9Anders Carlsson const Expr *InputExpr, std::string &ConstraintStr); 24840dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 248542b60551eff3a424e191b293bfd606559dc96bffChad Rosier llvm::Value* EmitAsmInputLValue(const TargetInfo::ConstraintInfo &Info, 24866d7cfd7ef82e42ff30ee1dafd2883fd94e9f8294Eli Friedman LValue InputValue, QualType InputType, 24874ee7dc2369c1f0257a73b2e83a7d38fdebdd9176Nick Lewycky std::string &ConstraintStr, 24884ee7dc2369c1f0257a73b2e83a7d38fdebdd9176Nick Lewycky SourceLocation Loc); 24896d7cfd7ef82e42ff30ee1dafd2883fd94e9f8294Eli Friedman 24900139bb96494b4c4ba0824617d5d2495dc7e44c76Anders Carlsson /// EmitCallArgs - Emit call arguments for a function. 24911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// The CallArgTypeInfo parameter is used for iterating over the known 2492af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson /// argument types of the function being called. 2493af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson template<typename T> 2494af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson void EmitCallArgs(CallArgList& Args, const T* CallArgTypeInfo, 24950139bb96494b4c4ba0824617d5d2495dc7e44c76Anders Carlsson CallExpr::const_arg_iterator ArgBeg, 2496b0e603c63813c8378e35a75408ab4cefe71e93e2Adrian Prantl CallExpr::const_arg_iterator ArgEnd, 2497b0e603c63813c8378e35a75408ab4cefe71e93e2Adrian Prantl bool ForceColumnInfo = false) { 2498b0e603c63813c8378e35a75408ab4cefe71e93e2Adrian Prantl CGDebugInfo *DI = getDebugInfo(); 2499b0e603c63813c8378e35a75408ab4cefe71e93e2Adrian Prantl SourceLocation CallLoc; 2500b0e603c63813c8378e35a75408ab4cefe71e93e2Adrian Prantl if (DI) CallLoc = DI->getLocation(); 2501b0e603c63813c8378e35a75408ab4cefe71e93e2Adrian Prantl 2502b0e603c63813c8378e35a75408ab4cefe71e93e2Adrian Prantl CallExpr::const_arg_iterator Arg = ArgBeg; 2503af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson 2504af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson // First, use the argument types that the type info knows about 2505af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson if (CallArgTypeInfo) { 2506af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson for (typename T::arg_type_iterator I = CallArgTypeInfo->arg_type_begin(), 2507af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson E = CallArgTypeInfo->arg_type_end(); I != E; ++I, ++Arg) { 250844b0a3e858af7b19f489619e52cd58970611cd15Eli Friedman assert(Arg != ArgEnd && "Running over edge of argument list!"); 2509af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson QualType ArgType = *I; 2510745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian#ifndef NDEBUG 2511745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian QualType ActualArgType = Arg->getType(); 2512745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian if (ArgType->isPointerType() && ActualArgType->isPointerType()) { 25139cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer QualType ActualBaseType = 2514745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian ActualArgType->getAs<PointerType>()->getPointeeType(); 25159cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer QualType ArgBaseType = 2516745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian ArgType->getAs<PointerType>()->getPointeeType(); 2517745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian if (ArgBaseType->isVariableArrayType()) { 2518745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian if (const VariableArrayType *VAT = 2519745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian getContext().getAsVariableArrayType(ActualBaseType)) { 2520745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian if (!VAT->getSizeExpr()) 2521745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian ActualArgType = ArgType; 2522745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian } 2523745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian } 2524745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian } 2525af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson assert(getContext().getCanonicalType(ArgType.getNonReferenceType()). 25261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getTypePtr() == 2527745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian getContext().getCanonicalType(ActualArgType).getTypePtr() && 2528af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson "type mismatch in call argument!"); 2529745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian#endif 2530413ebdb1af6fb0d81845b61254daf02ba0449afdJohn McCall EmitCallArg(Args, *Arg, ArgType); 2531b0e603c63813c8378e35a75408ab4cefe71e93e2Adrian Prantl 2532b0e603c63813c8378e35a75408ab4cefe71e93e2Adrian Prantl // Each argument expression could modify the debug 2533b0e603c63813c8378e35a75408ab4cefe71e93e2Adrian Prantl // location. Restore it. 2534b0e603c63813c8378e35a75408ab4cefe71e93e2Adrian Prantl if (DI) DI->EmitLocation(Builder, CallLoc, ForceColumnInfo); 2535af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson } 25361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Either we've emitted all the call args, or we have a call to a 2538af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson // variadic function. 25391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert((Arg == ArgEnd || CallArgTypeInfo->isVariadic()) && 2540af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson "Extra arguments in non-variadic function!"); 25411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2542af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson } 25431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2544af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson // If we still have any arguments, emit them using the type of the argument. 2545b0e603c63813c8378e35a75408ab4cefe71e93e2Adrian Prantl for (; Arg != ArgEnd; ++Arg) { 2546413ebdb1af6fb0d81845b61254daf02ba0449afdJohn McCall EmitCallArg(Args, *Arg, Arg->getType()); 2547b0e603c63813c8378e35a75408ab4cefe71e93e2Adrian Prantl 2548b0e603c63813c8378e35a75408ab4cefe71e93e2Adrian Prantl // Restore the debug location. 2549b0e603c63813c8378e35a75408ab4cefe71e93e2Adrian Prantl if (DI) DI->EmitLocation(Builder, CallLoc, ForceColumnInfo); 2550b0e603c63813c8378e35a75408ab4cefe71e93e2Adrian Prantl } 2551af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson } 2552492c4f998d848673d3d6c9e6416115df4036a71dJohn McCall 2553492c4f998d848673d3d6c9e6416115df4036a71dJohn McCall const TargetCodeGenInfo &getTargetHooks() const { 2554492c4f998d848673d3d6c9e6416115df4036a71dJohn McCall return CGM.getTargetCodeGenInfo(); 2555492c4f998d848673d3d6c9e6416115df4036a71dJohn McCall } 2556744016dde06fcffd50931e94a98c850f8b12cd87John McCall 2557744016dde06fcffd50931e94a98c850f8b12cd87John McCall void EmitDeclMetadata(); 2558f0c11f7e6848f023ced6a5b51399ba787c7d4d0bJohn McCall 2559f0c11f7e6848f023ced6a5b51399ba787c7d4d0bJohn McCall CodeGenModule::ByrefHelpers * 25602acc6e3feda5e4f7d9009bdcf8b1cd777fecfe2dChris Lattner buildByrefHelpers(llvm::StructType &byrefType, 2561f0c11f7e6848f023ced6a5b51399ba787c7d4d0bJohn McCall const AutoVarEmission &emission); 2562b49bd27b334a6c4e3bf9d810a7d5b022578f1194Dan Gohman 2563b49bd27b334a6c4e3bf9d810a7d5b022578f1194Dan Gohman void AddObjCARCExceptionMetadata(llvm::Instruction *Inst); 2564f4c3db175101cbf94dad59419c3ed7aed51bf606Jay Foad 2565ea93e40785ffeadfac66b948c95f9490ec26207aEli Friedman /// GetPointeeAlignment - Given an expression with a pointer type, emit the 2566ea93e40785ffeadfac66b948c95f9490ec26207aEli Friedman /// value and compute our best estimate of the alignment of the pointee. 2567ea93e40785ffeadfac66b948c95f9490ec26207aEli Friedman std::pair<llvm::Value*, unsigned> EmitPointerWithAlignment(const Expr *Addr); 25685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 25691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2570150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall/// Helper class with most of the code for saving a value for a 2571150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall/// conditional expression cleanup. 2572804b807ea918184d6de63bd745e1ff75a9bfc679John McCallstruct DominatingLLVMValue { 2573150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall typedef llvm::PointerIntPair<llvm::Value*, 1, bool> saved_type; 2574150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 2575150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// Answer whether the given value needs extra work to be saved. 2576150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall static bool needsSaving(llvm::Value *value) { 2577150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall // If it's not an instruction, we don't need to save. 2578150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall if (!isa<llvm::Instruction>(value)) return false; 2579150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 2580150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall // If it's an instruction in the entry block, we don't need to save. 2581150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall llvm::BasicBlock *block = cast<llvm::Instruction>(value)->getParent(); 2582150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall return (block != &block->getParent()->getEntryBlock()); 2583150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 2584150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 2585150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// Try to save the given value. 2586150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall static saved_type save(CodeGenFunction &CGF, llvm::Value *value) { 2587150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall if (!needsSaving(value)) return saved_type(value, false); 2588150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 2589150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall // Otherwise we need an alloca. 2590150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall llvm::Value *alloca = 2591150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall CGF.CreateTempAlloca(value->getType(), "cond-cleanup.save"); 2592150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall CGF.Builder.CreateStore(value, alloca); 2593150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 2594150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall return saved_type(alloca, true); 2595150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 2596150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 2597150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall static llvm::Value *restore(CodeGenFunction &CGF, saved_type value) { 2598150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall if (!value.getInt()) return value.getPointer(); 2599150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall return CGF.Builder.CreateLoad(value.getPointer()); 2600150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 2601150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall}; 2602150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 2603804b807ea918184d6de63bd745e1ff75a9bfc679John McCall/// A partial specialization of DominatingValue for llvm::Values that 2604804b807ea918184d6de63bd745e1ff75a9bfc679John McCall/// might be llvm::Instructions. 2605804b807ea918184d6de63bd745e1ff75a9bfc679John McCalltemplate <class T> struct DominatingPointer<T,true> : DominatingLLVMValue { 2606804b807ea918184d6de63bd745e1ff75a9bfc679John McCall typedef T *type; 2607804b807ea918184d6de63bd745e1ff75a9bfc679John McCall static type restore(CodeGenFunction &CGF, saved_type value) { 2608804b807ea918184d6de63bd745e1ff75a9bfc679John McCall return static_cast<T*>(DominatingLLVMValue::restore(CGF, value)); 2609804b807ea918184d6de63bd745e1ff75a9bfc679John McCall } 2610804b807ea918184d6de63bd745e1ff75a9bfc679John McCall}; 2611804b807ea918184d6de63bd745e1ff75a9bfc679John McCall 2612804b807ea918184d6de63bd745e1ff75a9bfc679John McCall/// A specialization of DominatingValue for RValue. 2613804b807ea918184d6de63bd745e1ff75a9bfc679John McCalltemplate <> struct DominatingValue<RValue> { 2614804b807ea918184d6de63bd745e1ff75a9bfc679John McCall typedef RValue type; 2615804b807ea918184d6de63bd745e1ff75a9bfc679John McCall class saved_type { 2616804b807ea918184d6de63bd745e1ff75a9bfc679John McCall enum Kind { ScalarLiteral, ScalarAddress, AggregateLiteral, 2617804b807ea918184d6de63bd745e1ff75a9bfc679John McCall AggregateAddress, ComplexAddress }; 2618804b807ea918184d6de63bd745e1ff75a9bfc679John McCall 2619804b807ea918184d6de63bd745e1ff75a9bfc679John McCall llvm::Value *Value; 2620804b807ea918184d6de63bd745e1ff75a9bfc679John McCall Kind K; 2621804b807ea918184d6de63bd745e1ff75a9bfc679John McCall saved_type(llvm::Value *v, Kind k) : Value(v), K(k) {} 2622804b807ea918184d6de63bd745e1ff75a9bfc679John McCall 2623804b807ea918184d6de63bd745e1ff75a9bfc679John McCall public: 2624804b807ea918184d6de63bd745e1ff75a9bfc679John McCall static bool needsSaving(RValue value); 2625804b807ea918184d6de63bd745e1ff75a9bfc679John McCall static saved_type save(CodeGenFunction &CGF, RValue value); 2626804b807ea918184d6de63bd745e1ff75a9bfc679John McCall RValue restore(CodeGenFunction &CGF); 2627804b807ea918184d6de63bd745e1ff75a9bfc679John McCall 2628804b807ea918184d6de63bd745e1ff75a9bfc679John McCall // implementations in CGExprCXX.cpp 2629804b807ea918184d6de63bd745e1ff75a9bfc679John McCall }; 2630804b807ea918184d6de63bd745e1ff75a9bfc679John McCall 2631804b807ea918184d6de63bd745e1ff75a9bfc679John McCall static bool needsSaving(type value) { 2632804b807ea918184d6de63bd745e1ff75a9bfc679John McCall return saved_type::needsSaving(value); 2633804b807ea918184d6de63bd745e1ff75a9bfc679John McCall } 2634804b807ea918184d6de63bd745e1ff75a9bfc679John McCall static saved_type save(CodeGenFunction &CGF, type value) { 2635804b807ea918184d6de63bd745e1ff75a9bfc679John McCall return saved_type::save(CGF, value); 2636804b807ea918184d6de63bd745e1ff75a9bfc679John McCall } 2637150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall static type restore(CodeGenFunction &CGF, saved_type value) { 2638804b807ea918184d6de63bd745e1ff75a9bfc679John McCall return value.restore(CGF); 2639150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 2640150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall}; 2641150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 26425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace CodeGen 26435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace clang 26444e1524babb095e70de1da882573eb6fbee98a857Fariborz Jahanian 26455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#endif 2646