CodeGenFunction.h revision 0934e18b620ecaa6c7ec18ba5c4286b6122d6fb8
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" 186fe91e448f948b78a36dd7f978125e0a882c623fReid Kleckner#include "CGCleanup.h" 1955fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "CGDebugInfo.h" 2055fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "CGValue.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; 2440dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 245ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall /// i32s containing the indexes of the cleanup destinations. 246ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall llvm::AllocaInst *NormalCleanupDest; 247ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall 248ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall unsigned NextCleanupDestIndex; 249ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall 2501a343ebbf413e8eae6b2737b2b2d79cbf5765571John McCall /// FirstBlockInfo - The head of a singly-linked-list of block layouts. 2511a343ebbf413e8eae6b2737b2b2d79cbf5765571John McCall CGBlockInfo *FirstBlockInfo; 2521a343ebbf413e8eae6b2737b2b2d79cbf5765571John McCall 253777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall /// EHResumeBlock - Unified block containing a call to llvm.eh.resume. 254777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall llvm::BasicBlock *EHResumeBlock; 255777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall 256285cfd8953d4ca4da613a47a0d691f7234068f8cBill Wendling /// The exception slot. All landing pads write the current exception pointer 257285cfd8953d4ca4da613a47a0d691f7234068f8cBill Wendling /// into this alloca. 258f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::Value *ExceptionSlot; 2590dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 260285cfd8953d4ca4da613a47a0d691f7234068f8cBill Wendling /// The selector slot. Under the MandatoryCleanup model, all landing pads 261285cfd8953d4ca4da613a47a0d691f7234068f8cBill Wendling /// write the current selector value into this alloca. 26293c332a8ba2c193c435b293966d343dab15f555bJohn McCall llvm::AllocaInst *EHSelectorSlot; 26393c332a8ba2c193c435b293966d343dab15f555bJohn McCall 264f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Emits a landing pad for the current EH stack. 265f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *EmitLandingPad(); 2660dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 267f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *getInvokeDestImpl(); 26899533834ba8f3658559f334e68a518ebb6388ceaMike Stump 269150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall template <class T> 270804b807ea918184d6de63bd745e1ff75a9bfc679John McCall typename DominatingValue<T>::saved_type saveValueInCond(T value) { 271804b807ea918184d6de63bd745e1ff75a9bfc679John McCall return DominatingValue<T>::save(*this, value); 272150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 273150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 274f1549f66a8216a78112286e3978cea2c29d6334cJohn McCallpublic: 275f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// ObjCEHValueStack - Stack of Objective-C exception values, used for 276f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// rethrows. 277686775deca8b8685eb90801495880e3abdd844c2Chris Lattner SmallVector<llvm::Value*, 8> ObjCEHValueStack; 278bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson 279d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall /// A class controlling the emission of a finally block. 280d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall class FinallyInfo { 281d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall /// Where the catchall's edge through the cleanup should go. 282d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall JumpDest RethrowDest; 283d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall 284d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall /// A function to call to enter the catch. 285d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall llvm::Constant *BeginCatchFn; 286d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall 287d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall /// An i1 variable indicating whether or not the @finally is 288d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall /// running for an exception. 289d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall llvm::AllocaInst *ForEHVar; 290d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump 291d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall /// An i8* variable into which the exception pointer to rethrow 292d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall /// has been saved. 293d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall llvm::AllocaInst *SavedExnVar; 294d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall 295d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall public: 296d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall void enter(CodeGenFunction &CGF, const Stmt *Finally, 297d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall llvm::Constant *beginCatchFn, llvm::Constant *endCatchFn, 298d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall llvm::Constant *rethrowFn); 299d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall void exit(CodeGenFunction &CGF); 300d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall }; 301f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 302150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// pushFullExprCleanup - Push a cleanup to be run at the end of the 303150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// current full-expression. Safe against the possibility that 304150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// we're currently inside a conditionally-evaluated expression. 3053ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall template <class T, class A0> 3063ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall void pushFullExprCleanup(CleanupKind kind, A0 a0) { 3073ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall // If we're not in a conditional branch, or if none of the 3083ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall // arguments requires saving, then use the unconditional cleanup. 309c4a1a8450a3613ef256a71b9d8305b41f79eef50John McCall if (!isInConditionalBranch()) 310c4a1a8450a3613ef256a71b9d8305b41f79eef50John McCall return EHStack.pushCleanup<T>(kind, a0); 3113ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall 312804b807ea918184d6de63bd745e1ff75a9bfc679John McCall typename DominatingValue<A0>::saved_type a0_saved = saveValueInCond(a0); 3133ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall 3143ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall typedef EHScopeStack::ConditionalCleanup1<T, A0> CleanupType; 3153ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall EHStack.pushCleanup<CleanupType>(kind, a0_saved); 3163ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall initFullExprCleanup(); 3173ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall } 3183ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall 3193ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall /// pushFullExprCleanup - Push a cleanup to be run at the end of the 3203ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall /// current full-expression. Safe against the possibility that 3213ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall /// we're currently inside a conditionally-evaluated expression. 322150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall template <class T, class A0, class A1> 323150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall void pushFullExprCleanup(CleanupKind kind, A0 a0, A1 a1) { 324150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall // If we're not in a conditional branch, or if none of the 325150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall // arguments requires saving, then use the unconditional cleanup. 326c4a1a8450a3613ef256a71b9d8305b41f79eef50John McCall if (!isInConditionalBranch()) 327c4a1a8450a3613ef256a71b9d8305b41f79eef50John McCall return EHStack.pushCleanup<T>(kind, a0, a1); 328150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 329804b807ea918184d6de63bd745e1ff75a9bfc679John McCall typename DominatingValue<A0>::saved_type a0_saved = saveValueInCond(a0); 330804b807ea918184d6de63bd745e1ff75a9bfc679John McCall typename DominatingValue<A1>::saved_type a1_saved = saveValueInCond(a1); 331150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 332150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall typedef EHScopeStack::ConditionalCleanup2<T, A0, A1> CleanupType; 3333ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall EHStack.pushCleanup<CleanupType>(kind, a0_saved, a1_saved); 3343ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall initFullExprCleanup(); 335150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 336150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 337d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor /// pushFullExprCleanup - Push a cleanup to be run at the end of the 338d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor /// current full-expression. Safe against the possibility that 339d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor /// we're currently inside a conditionally-evaluated expression. 340d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor template <class T, class A0, class A1, class A2> 341d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor void pushFullExprCleanup(CleanupKind kind, A0 a0, A1 a1, A2 a2) { 342d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor // If we're not in a conditional branch, or if none of the 343d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor // arguments requires saving, then use the unconditional cleanup. 344d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor if (!isInConditionalBranch()) { 345c4a1a8450a3613ef256a71b9d8305b41f79eef50John McCall return EHStack.pushCleanup<T>(kind, a0, a1, a2); 346d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor } 347d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor 348d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor typename DominatingValue<A0>::saved_type a0_saved = saveValueInCond(a0); 349d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor typename DominatingValue<A1>::saved_type a1_saved = saveValueInCond(a1); 350d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor typename DominatingValue<A2>::saved_type a2_saved = saveValueInCond(a2); 351d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor 352d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor typedef EHScopeStack::ConditionalCleanup3<T, A0, A1, A2> CleanupType; 353d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor EHStack.pushCleanup<CleanupType>(kind, a0_saved, a1_saved, a2_saved); 354d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor initFullExprCleanup(); 355d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor } 356d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor 3579928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall /// pushFullExprCleanup - Push a cleanup to be run at the end of the 3589928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall /// current full-expression. Safe against the possibility that 3599928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall /// we're currently inside a conditionally-evaluated expression. 3609928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall template <class T, class A0, class A1, class A2, class A3> 3619928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall void pushFullExprCleanup(CleanupKind kind, A0 a0, A1 a1, A2 a2, A3 a3) { 3629928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall // If we're not in a conditional branch, or if none of the 3639928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall // arguments requires saving, then use the unconditional cleanup. 3649928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall if (!isInConditionalBranch()) { 3659928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall return EHStack.pushCleanup<T>(kind, a0, a1, a2, a3); 3669928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall } 3679928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall 3689928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall typename DominatingValue<A0>::saved_type a0_saved = saveValueInCond(a0); 3699928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall typename DominatingValue<A1>::saved_type a1_saved = saveValueInCond(a1); 3709928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall typename DominatingValue<A2>::saved_type a2_saved = saveValueInCond(a2); 3719928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall typename DominatingValue<A3>::saved_type a3_saved = saveValueInCond(a3); 3729928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall 3739928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall typedef EHScopeStack::ConditionalCleanup4<T, A0, A1, A2, A3> CleanupType; 3749928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall EHStack.pushCleanup<CleanupType>(kind, a0_saved, a1_saved, 3759928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall a2_saved, a3_saved); 3769928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall initFullExprCleanup(); 3779928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall } 3789928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall 3796f103ba42cb69d50005a977c5ea583984ab63fc4John McCall /// Set up the last cleaup that was pushed as a conditional 3806f103ba42cb69d50005a977c5ea583984ab63fc4John McCall /// full-expression cleanup. 3816f103ba42cb69d50005a977c5ea583984ab63fc4John McCall void initFullExprCleanup(); 3826f103ba42cb69d50005a977c5ea583984ab63fc4John McCall 383f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// PushDestructorCleanup - Push a cleanup to call the 384f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// complete-object destructor of an object of the given type at the 385f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// given address. Does nothing if T is not a C++ class type with a 386f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// non-trivial destructor. 387f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall void PushDestructorCleanup(QualType T, llvm::Value *Addr); 388f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 38981407d404a3fc8d24d0e2a052d85cae183033e2bJohn McCall /// PushDestructorCleanup - Push a cleanup to call the 39081407d404a3fc8d24d0e2a052d85cae183033e2bJohn McCall /// complete-object variant of the given destructor on the object at 39181407d404a3fc8d24d0e2a052d85cae183033e2bJohn McCall /// the given address. 39281407d404a3fc8d24d0e2a052d85cae183033e2bJohn McCall void PushDestructorCleanup(const CXXDestructorDecl *Dtor, 39381407d404a3fc8d24d0e2a052d85cae183033e2bJohn McCall llvm::Value *Addr); 39481407d404a3fc8d24d0e2a052d85cae183033e2bJohn McCall 395f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// PopCleanupBlock - Will pop the cleanup entry on the stack and 396f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// process all branch fixups. 3971c3db769249a633108dc320da87c48a432e2bcc1Adrian Prantl void PopCleanupBlock(bool FallThroughIsBranchThrough = false); 398f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 3997d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// DeactivateCleanupBlock - Deactivates the given cleanup block. 4007d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// The block cannot be reactivated. Pops it if it's the top of the 4017d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// stack. 4026f103ba42cb69d50005a977c5ea583984ab63fc4John McCall /// 4036f103ba42cb69d50005a977c5ea583984ab63fc4John McCall /// \param DominatingIP - An instruction which is known to 4046f103ba42cb69d50005a977c5ea583984ab63fc4John McCall /// dominate the current IP (if set) and which lies along 4056f103ba42cb69d50005a977c5ea583984ab63fc4John McCall /// all paths of execution between the current IP and the 4066f103ba42cb69d50005a977c5ea583984ab63fc4John McCall /// the point at which the cleanup comes into scope. 4076f103ba42cb69d50005a977c5ea583984ab63fc4John McCall void DeactivateCleanupBlock(EHScopeStack::stable_iterator Cleanup, 4086f103ba42cb69d50005a977c5ea583984ab63fc4John McCall llvm::Instruction *DominatingIP); 4097d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall 4107d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// ActivateCleanupBlock - Activates an initially-inactive cleanup. 4117d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// Cannot be used to resurrect a deactivated cleanup. 4126f103ba42cb69d50005a977c5ea583984ab63fc4John McCall /// 4136f103ba42cb69d50005a977c5ea583984ab63fc4John McCall /// \param DominatingIP - An instruction which is known to 4146f103ba42cb69d50005a977c5ea583984ab63fc4John McCall /// dominate the current IP (if set) and which lies along 4156f103ba42cb69d50005a977c5ea583984ab63fc4John McCall /// all paths of execution between the current IP and the 4166f103ba42cb69d50005a977c5ea583984ab63fc4John McCall /// the point at which the cleanup comes into scope. 4176f103ba42cb69d50005a977c5ea583984ab63fc4John McCall void ActivateCleanupBlock(EHScopeStack::stable_iterator Cleanup, 4186f103ba42cb69d50005a977c5ea583984ab63fc4John McCall llvm::Instruction *DominatingIP); 419cd2d2b7814e0104ed41a8da159a06a8ca77b70d8John McCall 420f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// \brief Enters a new scope for capturing cleanups, all of which 421f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// will be executed once the scope is exited. 422f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall class RunCleanupsScope { 423f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall EHScopeStack::stable_iterator CleanupStackDepth; 42401234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor bool OldDidCallStackSave; 425ed383135bcffdb8849418896b742fbca7fa2b787John McCall protected: 4265656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor bool PerformCleanup; 427ed383135bcffdb8849418896b742fbca7fa2b787John McCall private: 42801234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor 429f56faa01936b9cf909623d7f06e3c2569ca4a78eDmitri Gribenko RunCleanupsScope(const RunCleanupsScope &) LLVM_DELETED_FUNCTION; 430f56faa01936b9cf909623d7f06e3c2569ca4a78eDmitri Gribenko void operator=(const RunCleanupsScope &) LLVM_DELETED_FUNCTION; 43101234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor 432c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher protected: 433c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher CodeGenFunction& CGF; 4344f45bc099f2665bc6e4bcbb169aa452390dbf3feWill Dietz 43501234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor public: 43601234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor /// \brief Enter a new cleanup scope. 4379cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer explicit RunCleanupsScope(CodeGenFunction &CGF) 438c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher : PerformCleanup(true), CGF(CGF) 4395656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor { 440f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall CleanupStackDepth = CGF.EHStack.stable_begin(); 44101234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor OldDidCallStackSave = CGF.DidCallStackSave; 4424ada2ca7d82dab68d3646f3eb6dcdfee072e8ea4Argyrios Kyrtzidis CGF.DidCallStackSave = false; 44301234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor } 44401234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor 44501234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor /// \brief Exit this cleanup scope, emitting any accumulated 44601234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor /// cleanups. 447f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall ~RunCleanupsScope() { 4485656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor if (PerformCleanup) { 4495656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor CGF.DidCallStackSave = OldDidCallStackSave; 450a57be5617a0735a654d4c8145be1fd752f776772Richard Smith CGF.PopCleanupBlocks(CleanupStackDepth); 4515656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor } 4525656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor } 4535656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor 4545656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor /// \brief Determine whether this scope requires any cleanups. 4555656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor bool requiresCleanups() const { 456f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return CGF.EHStack.stable_begin() != CleanupStackDepth; 4575656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor } 4585656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor 4595656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor /// \brief Force the emission of cleanups now, instead of waiting 4605656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor /// until this object is destroyed. 4615656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor void ForceCleanup() { 4625656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor assert(PerformCleanup && "Already forced cleanup"); 46301234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor CGF.DidCallStackSave = OldDidCallStackSave; 464a57be5617a0735a654d4c8145be1fd752f776772Richard Smith CGF.PopCleanupBlocks(CleanupStackDepth); 4655656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor PerformCleanup = false; 46601234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor } 46701234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor }; 46801234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor 469c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher class LexicalScope: protected RunCleanupsScope { 470c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher SourceRange Range; 471495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem SmallVector<const LabelDecl*, 4> Labels; 472495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem LexicalScope *ParentScope; 473c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher 474f56faa01936b9cf909623d7f06e3c2569ca4a78eDmitri Gribenko LexicalScope(const LexicalScope &) LLVM_DELETED_FUNCTION; 475f56faa01936b9cf909623d7f06e3c2569ca4a78eDmitri Gribenko void operator=(const LexicalScope &) LLVM_DELETED_FUNCTION; 476c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher 477c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher public: 478c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher /// \brief Enter a new cleanup scope. 479c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher explicit LexicalScope(CodeGenFunction &CGF, SourceRange Range) 480495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem : RunCleanupsScope(CGF), Range(Range), ParentScope(CGF.CurLexicalScope) { 481495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem CGF.CurLexicalScope = this; 482c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher if (CGDebugInfo *DI = CGF.getDebugInfo()) 483c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher DI->EmitLexicalBlockStart(CGF.Builder, Range.getBegin()); 484c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher } 485c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher 486495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem void addLabel(const LabelDecl *label) { 487495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem assert(PerformCleanup && "adding label to dead scope?"); 488495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem Labels.push_back(label); 489495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem } 490495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem 491c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher /// \brief Exit this cleanup scope, emitting any accumulated 492c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher /// cleanups. 493c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher ~LexicalScope() { 494efb72adbae0c253fc2fd9127fb3e1c36cb1b8d93Adrian Prantl if (CGDebugInfo *DI = CGF.getDebugInfo()) 495efb72adbae0c253fc2fd9127fb3e1c36cb1b8d93Adrian Prantl DI->EmitLexicalBlockEnd(CGF.Builder, Range.getEnd()); 496efb72adbae0c253fc2fd9127fb3e1c36cb1b8d93Adrian Prantl 497495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem // If we should perform a cleanup, force them now. Note that 498495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem // this ends the cleanup scope before rescoping any labels. 499495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem if (PerformCleanup) ForceCleanup(); 500c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher } 501c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher 502c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher /// \brief Force the emission of cleanups now, instead of waiting 503c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher /// until this object is destroyed. 504c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher void ForceCleanup() { 505efb72adbae0c253fc2fd9127fb3e1c36cb1b8d93Adrian Prantl CGF.CurLexicalScope = ParentScope; 506c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher RunCleanupsScope::ForceCleanup(); 507ed383135bcffdb8849418896b742fbca7fa2b787John McCall 508495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem if (!Labels.empty()) 509495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem rescopeLabels(); 510c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher } 511495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem 512495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem void rescopeLabels(); 513c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher }; 514c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher 51544ec82b4a1597802f5bf17721481b8c265bc8dc5Anders Carlsson 516a57be5617a0735a654d4c8145be1fd752f776772Richard Smith /// PopCleanupBlocks - Takes the old cleanup stack size and emits 517a57be5617a0735a654d4c8145be1fd752f776772Richard Smith /// the cleanup blocks that have been added. 5181c3db769249a633108dc320da87c48a432e2bcc1Adrian Prantl void PopCleanupBlocks(EHScopeStack::stable_iterator OldCleanupStackSize); 51944ec82b4a1597802f5bf17721481b8c265bc8dc5Anders Carlsson 520ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall void ResolveBranchFixups(llvm::BasicBlock *Target); 521ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall 522f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// The given basic block lies in the current EH scope, but may be a 523f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// target of a potentially scope-crossing jump; get a stable handle 524f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// to which we can perform this jump later. 525ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall JumpDest getJumpDestInCurrentScope(llvm::BasicBlock *Target) { 526413e67778d593215d2f2161a4e712c8568f1ddd0John McCall return JumpDest(Target, 527413e67778d593215d2f2161a4e712c8568f1ddd0John McCall EHStack.getInnermostNormalCleanup(), 528413e67778d593215d2f2161a4e712c8568f1ddd0John McCall NextCleanupDestIndex++); 529f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 530c71c845fe77ee1f891d60232ec320912d88557eeAnders Carlsson 531f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// The given basic block lies in the current EH scope, but may be a 532f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// target of a potentially scope-crossing jump; get a stable handle 533f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// to which we can perform this jump later. 534686775deca8b8685eb90801495880e3abdd844c2Chris Lattner JumpDest getJumpDestInCurrentScope(StringRef Name = StringRef()) { 535ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall return getJumpDestInCurrentScope(createBasicBlock(Name)); 536f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 537f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 538f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// EmitBranchThroughCleanup - Emit a branch from the current insert 539f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// block through the normal cleanup handling code (if any) and then 540f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// on to \arg Dest. 541f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall void EmitBranchThroughCleanup(JumpDest Dest); 542b11f9198111796ada02b57f62cdea92134fde9f7Chris Lattner 543b11f9198111796ada02b57f62cdea92134fde9f7Chris Lattner /// isObviouslyBranchWithoutCleanups - Return true if a branch to the 544b11f9198111796ada02b57f62cdea92134fde9f7Chris Lattner /// specified destination obviously has no cleanups to run. 'false' is always 545b11f9198111796ada02b57f62cdea92134fde9f7Chris Lattner /// a conservatively correct answer for this method. 546b11f9198111796ada02b57f62cdea92134fde9f7Chris Lattner bool isObviouslyBranchWithoutCleanups(JumpDest Dest) const; 547f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 548777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall /// popCatchScope - Pops the catch scope at the top of the EHScope 549777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall /// stack, emitting any required code (other than the catch handlers 550777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall /// themselves). 551777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall void popCatchScope(); 552ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall 553c686004145b1f4dbeb38173a0886ba7040ae0089David Chisnall llvm::BasicBlock *getEHResumeBlock(bool isCleanup); 554777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall llvm::BasicBlock *getEHDispatchBlock(EHScopeStack::stable_iterator scope); 5550dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 556150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// An object to manage conditionally-evaluated expressions. 557150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall class ConditionalEvaluation { 558150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall llvm::BasicBlock *StartBB; 5591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 560150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall public: 561150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall ConditionalEvaluation(CodeGenFunction &CGF) 562150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall : StartBB(CGF.Builder.GetInsertBlock()) {} 5639cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 564150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall void begin(CodeGenFunction &CGF) { 565150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall assert(CGF.OutermostConditional != this); 566150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall if (!CGF.OutermostConditional) 567150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall CGF.OutermostConditional = this; 568150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 569150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 570150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall void end(CodeGenFunction &CGF) { 571150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall assert(CGF.OutermostConditional != 0); 572150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall if (CGF.OutermostConditional == this) 573150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall CGF.OutermostConditional = 0; 574150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 575150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 576150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// Returns a block which will be executed prior to each 577150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// evaluation of the conditional code. 578150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall llvm::BasicBlock *getStartingBlock() const { 579150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall return StartBB; 580150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 581150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall }; 5821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5833019c444c672938c57f5573840071ecd73425ee7John McCall /// isInConditionalBranch - Return true if we're currently emitting 5843019c444c672938c57f5573840071ecd73425ee7John McCall /// one branch or the other of a conditional expression. 585150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall bool isInConditionalBranch() const { return OutermostConditional != 0; } 586150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 5876f103ba42cb69d50005a977c5ea583984ab63fc4John McCall void setBeforeOutermostConditional(llvm::Value *value, llvm::Value *addr) { 5886f103ba42cb69d50005a977c5ea583984ab63fc4John McCall assert(isInConditionalBranch()); 5896f103ba42cb69d50005a977c5ea583984ab63fc4John McCall llvm::BasicBlock *block = OutermostConditional->getStartingBlock(); 5906f103ba42cb69d50005a977c5ea583984ab63fc4John McCall new llvm::StoreInst(value, addr, &block->back()); 5916f103ba42cb69d50005a977c5ea583984ab63fc4John McCall } 5926f103ba42cb69d50005a977c5ea583984ab63fc4John McCall 593150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// An RAII object to record that we're evaluating a statement 594150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// expression. 595150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall class StmtExprEvaluation { 596150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall CodeGenFunction &CGF; 597150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 598150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// We have to save the outermost conditional: cleanups in a 599150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// statement expression aren't conditional just because the 600150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// StmtExpr is. 601150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall ConditionalEvaluation *SavedOutermostConditional; 602150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 603150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall public: 604150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall StmtExprEvaluation(CodeGenFunction &CGF) 605150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall : CGF(CGF), SavedOutermostConditional(CGF.OutermostConditional) { 606150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall CGF.OutermostConditional = 0; 607150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 608150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 609150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall ~StmtExprEvaluation() { 610150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall CGF.OutermostConditional = SavedOutermostConditional; 611150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall CGF.EnsureInsertPoint(); 612150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 613150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall }; 614e996ffd240f20a1048179d7727a6ee3227261921John McCall 61556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// An object which temporarily prevents a value from being 61656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// destroyed by aggressive peephole optimizations that assume that 61756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// all uses of a value have been realized in the IR. 61856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall class PeepholeProtection { 61956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall llvm::Instruction *Inst; 62056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall friend class CodeGenFunction; 62156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 62256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall public: 62356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall PeepholeProtection() : Inst(0) {} 6244b9c2d235fb9449e249d74f48ecfec601650de93John McCall }; 62556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 6264b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// A non-RAII class containing all the information about a bound 6274b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// opaque value. OpaqueValueMapping, below, is a RAII wrapper for 6284b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// this which makes individual mappings very simple; using this 6294b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// class directly is useful when you have a variable number of 6304b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// opaque values or don't want the RAII functionality for some 6314b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// reason. 6324b9c2d235fb9449e249d74f48ecfec601650de93John McCall class OpaqueValueMappingData { 633e996ffd240f20a1048179d7727a6ee3227261921John McCall const OpaqueValueExpr *OpaqueValue; 63456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall bool BoundLValue; 63556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall CodeGenFunction::PeepholeProtection Protection; 636e996ffd240f20a1048179d7727a6ee3227261921John McCall 6374b9c2d235fb9449e249d74f48ecfec601650de93John McCall OpaqueValueMappingData(const OpaqueValueExpr *ov, 6384b9c2d235fb9449e249d74f48ecfec601650de93John McCall bool boundLValue) 6394b9c2d235fb9449e249d74f48ecfec601650de93John McCall : OpaqueValue(ov), BoundLValue(boundLValue) {} 640e996ffd240f20a1048179d7727a6ee3227261921John McCall public: 6414b9c2d235fb9449e249d74f48ecfec601650de93John McCall OpaqueValueMappingData() : OpaqueValue(0) {} 6424b9c2d235fb9449e249d74f48ecfec601650de93John McCall 64356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static bool shouldBindAsLValue(const Expr *expr) { 644a5493f885095bd63d525a7035ad1c224de3ae5f2John McCall // gl-values should be bound as l-values for obvious reasons. 645a5493f885095bd63d525a7035ad1c224de3ae5f2John McCall // Records should be bound as l-values because IR generation 646a5493f885095bd63d525a7035ad1c224de3ae5f2John McCall // always keeps them in memory. Expressions of function type 647a5493f885095bd63d525a7035ad1c224de3ae5f2John McCall // act exactly like l-values but are formally required to be 648a5493f885095bd63d525a7035ad1c224de3ae5f2John McCall // r-values in C. 649a5493f885095bd63d525a7035ad1c224de3ae5f2John McCall return expr->isGLValue() || 650a5493f885095bd63d525a7035ad1c224de3ae5f2John McCall expr->getType()->isRecordType() || 651a5493f885095bd63d525a7035ad1c224de3ae5f2John McCall expr->getType()->isFunctionType(); 65256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 65356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 6544b9c2d235fb9449e249d74f48ecfec601650de93John McCall static OpaqueValueMappingData bind(CodeGenFunction &CGF, 6554b9c2d235fb9449e249d74f48ecfec601650de93John McCall const OpaqueValueExpr *ov, 6564b9c2d235fb9449e249d74f48ecfec601650de93John McCall const Expr *e) { 6574b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (shouldBindAsLValue(ov)) 6584b9c2d235fb9449e249d74f48ecfec601650de93John McCall return bind(CGF, ov, CGF.EmitLValue(e)); 6594b9c2d235fb9449e249d74f48ecfec601650de93John McCall return bind(CGF, ov, CGF.EmitAnyExpr(e)); 6604b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 6614b9c2d235fb9449e249d74f48ecfec601650de93John McCall 6624b9c2d235fb9449e249d74f48ecfec601650de93John McCall static OpaqueValueMappingData bind(CodeGenFunction &CGF, 6634b9c2d235fb9449e249d74f48ecfec601650de93John McCall const OpaqueValueExpr *ov, 6644b9c2d235fb9449e249d74f48ecfec601650de93John McCall const LValue &lv) { 6654b9c2d235fb9449e249d74f48ecfec601650de93John McCall assert(shouldBindAsLValue(ov)); 6664b9c2d235fb9449e249d74f48ecfec601650de93John McCall CGF.OpaqueLValues.insert(std::make_pair(ov, lv)); 6674b9c2d235fb9449e249d74f48ecfec601650de93John McCall return OpaqueValueMappingData(ov, true); 6684b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 6694b9c2d235fb9449e249d74f48ecfec601650de93John McCall 6704b9c2d235fb9449e249d74f48ecfec601650de93John McCall static OpaqueValueMappingData bind(CodeGenFunction &CGF, 6714b9c2d235fb9449e249d74f48ecfec601650de93John McCall const OpaqueValueExpr *ov, 6724b9c2d235fb9449e249d74f48ecfec601650de93John McCall const RValue &rv) { 6734b9c2d235fb9449e249d74f48ecfec601650de93John McCall assert(!shouldBindAsLValue(ov)); 6744b9c2d235fb9449e249d74f48ecfec601650de93John McCall CGF.OpaqueRValues.insert(std::make_pair(ov, rv)); 6754b9c2d235fb9449e249d74f48ecfec601650de93John McCall 6764b9c2d235fb9449e249d74f48ecfec601650de93John McCall OpaqueValueMappingData data(ov, false); 6774b9c2d235fb9449e249d74f48ecfec601650de93John McCall 6784b9c2d235fb9449e249d74f48ecfec601650de93John McCall // Work around an extremely aggressive peephole optimization in 6794b9c2d235fb9449e249d74f48ecfec601650de93John McCall // EmitScalarConversion which assumes that all other uses of a 6804b9c2d235fb9449e249d74f48ecfec601650de93John McCall // value are extant. 6814b9c2d235fb9449e249d74f48ecfec601650de93John McCall data.Protection = CGF.protectFromPeepholes(rv); 6824b9c2d235fb9449e249d74f48ecfec601650de93John McCall 6834b9c2d235fb9449e249d74f48ecfec601650de93John McCall return data; 6844b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 6854b9c2d235fb9449e249d74f48ecfec601650de93John McCall 6864b9c2d235fb9449e249d74f48ecfec601650de93John McCall bool isValid() const { return OpaqueValue != 0; } 6874b9c2d235fb9449e249d74f48ecfec601650de93John McCall void clear() { OpaqueValue = 0; } 6884b9c2d235fb9449e249d74f48ecfec601650de93John McCall 6894b9c2d235fb9449e249d74f48ecfec601650de93John McCall void unbind(CodeGenFunction &CGF) { 6904b9c2d235fb9449e249d74f48ecfec601650de93John McCall assert(OpaqueValue && "no data to unbind!"); 6914b9c2d235fb9449e249d74f48ecfec601650de93John McCall 6924b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (BoundLValue) { 6934b9c2d235fb9449e249d74f48ecfec601650de93John McCall CGF.OpaqueLValues.erase(OpaqueValue); 6944b9c2d235fb9449e249d74f48ecfec601650de93John McCall } else { 6954b9c2d235fb9449e249d74f48ecfec601650de93John McCall CGF.OpaqueRValues.erase(OpaqueValue); 6964b9c2d235fb9449e249d74f48ecfec601650de93John McCall CGF.unprotectFromPeepholes(Protection); 6974b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 6984b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 6994b9c2d235fb9449e249d74f48ecfec601650de93John McCall }; 7004b9c2d235fb9449e249d74f48ecfec601650de93John McCall 7014b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// An RAII object to set (and then clear) a mapping for an OpaqueValueExpr. 7024b9c2d235fb9449e249d74f48ecfec601650de93John McCall class OpaqueValueMapping { 7034b9c2d235fb9449e249d74f48ecfec601650de93John McCall CodeGenFunction &CGF; 7044b9c2d235fb9449e249d74f48ecfec601650de93John McCall OpaqueValueMappingData Data; 7054b9c2d235fb9449e249d74f48ecfec601650de93John McCall 7064b9c2d235fb9449e249d74f48ecfec601650de93John McCall public: 7074b9c2d235fb9449e249d74f48ecfec601650de93John McCall static bool shouldBindAsLValue(const Expr *expr) { 7084b9c2d235fb9449e249d74f48ecfec601650de93John McCall return OpaqueValueMappingData::shouldBindAsLValue(expr); 7094b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 7104b9c2d235fb9449e249d74f48ecfec601650de93John McCall 71156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// Build the opaque value mapping for the given conditional 71256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// operator if it's the GNU ?: extension. This is a common 71356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// enough pattern that the convenience operator is really 71456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// helpful. 71556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// 71656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall OpaqueValueMapping(CodeGenFunction &CGF, 71756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall const AbstractConditionalOperator *op) : CGF(CGF) { 7184b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (isa<ConditionalOperator>(op)) 7194b9c2d235fb9449e249d74f48ecfec601650de93John McCall // Leave Data empty. 72056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return; 72156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 72256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall const BinaryConditionalOperator *e = cast<BinaryConditionalOperator>(op); 7234b9c2d235fb9449e249d74f48ecfec601650de93John McCall Data = OpaqueValueMappingData::bind(CGF, e->getOpaqueValue(), 7244b9c2d235fb9449e249d74f48ecfec601650de93John McCall e->getCommon()); 72556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 72656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 727e996ffd240f20a1048179d7727a6ee3227261921John McCall OpaqueValueMapping(CodeGenFunction &CGF, 728e996ffd240f20a1048179d7727a6ee3227261921John McCall const OpaqueValueExpr *opaqueValue, 72956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall LValue lvalue) 7304b9c2d235fb9449e249d74f48ecfec601650de93John McCall : CGF(CGF), Data(OpaqueValueMappingData::bind(CGF, opaqueValue, lvalue)) { 73156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 73256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 73356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall OpaqueValueMapping(CodeGenFunction &CGF, 73456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall const OpaqueValueExpr *opaqueValue, 73556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall RValue rvalue) 7364b9c2d235fb9449e249d74f48ecfec601650de93John McCall : CGF(CGF), Data(OpaqueValueMappingData::bind(CGF, opaqueValue, rvalue)) { 737e996ffd240f20a1048179d7727a6ee3227261921John McCall } 738e996ffd240f20a1048179d7727a6ee3227261921John McCall 739e996ffd240f20a1048179d7727a6ee3227261921John McCall void pop() { 7404b9c2d235fb9449e249d74f48ecfec601650de93John McCall Data.unbind(CGF); 7414b9c2d235fb9449e249d74f48ecfec601650de93John McCall Data.clear(); 742e996ffd240f20a1048179d7727a6ee3227261921John McCall } 743e996ffd240f20a1048179d7727a6ee3227261921John McCall 744e996ffd240f20a1048179d7727a6ee3227261921John McCall ~OpaqueValueMapping() { 7454b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (Data.isValid()) Data.unbind(CGF); 746e996ffd240f20a1048179d7727a6ee3227261921John McCall } 747e996ffd240f20a1048179d7727a6ee3227261921John McCall }; 748e220455a059d926953befe72857b9525273717efFariborz Jahanian 749e220455a059d926953befe72857b9525273717efFariborz Jahanian /// getByrefValueFieldNumber - Given a declaration, returns the LLVM field 750e220455a059d926953befe72857b9525273717efFariborz Jahanian /// number that holds the value. 751e220455a059d926953befe72857b9525273717efFariborz Jahanian unsigned getByRefValueLLVMField(const ValueDecl *VD) const; 75252a80e19ad688091723a52ad53337767bb0ac684Fariborz Jahanian 75352a80e19ad688091723a52ad53337767bb0ac684Fariborz Jahanian /// BuildBlockByrefAddress - Computes address location of the 75452a80e19ad688091723a52ad53337767bb0ac684Fariborz Jahanian /// variable which is declared as __block. 75552a80e19ad688091723a52ad53337767bb0ac684Fariborz Jahanian llvm::Value *BuildBlockByrefAddress(llvm::Value *BaseAddr, 75652a80e19ad688091723a52ad53337767bb0ac684Fariborz Jahanian const VarDecl *V); 7577f02f721d48772e4eee4fccd8af4f800be1bbc1eChris Lattnerprivate: 758d9becd1846e2c72bf6ad283faa1b048f33dd3afeChris Lattner CGDebugInfo *DebugInfo; 759aa11289f754d220c9c155b68a4f84cdcfcefef6aDevang Patel bool DisableDebugInfo; 76009429b962811f2c0a7a81a1b0a89f96f5878b20cMike Stump 76163fd408a61ae9b94e8d8a986832f526f7cdbfa84Manman Ren /// If the current function returns 'this', use the field to keep track of 76263fd408a61ae9b94e8d8a986832f526f7cdbfa84Manman Ren /// the callee that returns 'this'. 76363fd408a61ae9b94e8d8a986832f526f7cdbfa84Manman Ren llvm::Value *CalleeWithThisReturn; 76463fd408a61ae9b94e8d8a986832f526f7cdbfa84Manman Ren 76593c332a8ba2c193c435b293966d343dab15f555bJohn McCall /// DidCallStackSave - Whether llvm.stacksave has been called. Used to avoid 76693c332a8ba2c193c435b293966d343dab15f555bJohn McCall /// calling llvm.stacksave for multiple VLAs in the same scope. 76793c332a8ba2c193c435b293966d343dab15f555bJohn McCall bool DidCallStackSave; 76893c332a8ba2c193c435b293966d343dab15f555bJohn McCall 769f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// IndirectBranch - The first time an indirect goto is seen we create a block 770f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// with an indirect branch. Every time we see the address of a label taken, 771f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// we add the label to the indirect goto. Every subsequent indirect goto is 772f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// codegen'd as a jump to the IndirectBranch's basic block. 773d9becd1846e2c72bf6ad283faa1b048f33dd3afeChris Lattner llvm::IndirectBrInst *IndirectBranch; 7740ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar 7750dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// LocalDeclMap - This keeps track of the LLVM allocas or globals for local C 7760dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// decls. 7776b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall typedef llvm::DenseMap<const Decl*, llvm::Value*> DeclMapTy; 7786b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall DeclMapTy LocalDeclMap; 7795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// LabelMap - This keeps track of the LLVM basic block for each C label. 781ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner llvm::DenseMap<const LabelDecl*, JumpDest> LabelMap; 7820dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 7830dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // BreakContinueStack - This keeps track of where break and continue 784e4b6d342c29d5cb9d311756100df1603810fa892Anders Carlsson // statements should jump to. 785da13870e99fe33934b2122f06528a5063f78ae4cChris Lattner struct BreakContinue { 786f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall BreakContinue(JumpDest Break, JumpDest Continue) 787f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall : BreakBlock(Break), ContinueBlock(Continue) {} 7880dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 789f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall JumpDest BreakBlock; 790f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall JumpDest ContinueBlock; 7910dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump }; 792686775deca8b8685eb90801495880e3abdd844c2Chris Lattner SmallVector<BreakContinue, 8> BreakContinueStack; 79318ccc7776ad6288c5f630dc7967fb99d099c9cd9Daniel Dunbar 794170fd49294b85ab10f820721d99ff9d109c7230dZhongxing Xu /// SwitchInsn - This is nearest current switch instruction. It is null if 7950dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// current context is not in a switch. 79651b09f2c528c8460b5465c676173324e44176d62Devang Patel llvm::SwitchInst *SwitchInsn; 79751b09f2c528c8460b5465c676173324e44176d62Devang Patel 7980dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// CaseRangeBlock - This block holds if condition check for last case 79980fd5f96e6805ac43aab99faabd5b4c8b19551b7Devang Patel /// statement range in current switch instruction. 800c049e4f406a7f7179eba98659044a32508e53289Devang Patel llvm::BasicBlock *CaseRangeBlock; 801c049e4f406a7f7179eba98659044a32508e53289Devang Patel 80256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// OpaqueLValues - Keeps track of the current set of opaque value 803e996ffd240f20a1048179d7727a6ee3227261921John McCall /// expressions. 80456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall llvm::DenseMap<const OpaqueValueExpr *, LValue> OpaqueLValues; 80556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall llvm::DenseMap<const OpaqueValueExpr *, RValue> OpaqueRValues; 806e996ffd240f20a1048179d7727a6ee3227261921John McCall 8070dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // VLASizeMap - This keeps track of the associated size for each VLA type. 808bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman // We track this by the size expression rather than the type itself because 809bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman // in certain situations, like a const qualifier applied to an VLA typedef, 810bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman // multiple VLA types can share the same size expression. 8110dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // FIXME: Maybe this could be a stack of maps that is pushed/popped as we 8120dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // enter/leave scopes. 813bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman llvm::DenseMap<const Expr*, llvm::Value*> VLASizeMap; 8140dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 815f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// A block containing a single 'unreachable' instruction. Created 816f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// lazily by getUnreachableBlock(). 817f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *UnreachableBlock; 8180dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 819d072e59eb6b5e32f93be25f08f212b0ec21d6c5dAdrian Prantl /// Counts of the number return expressions in the function. 820d072e59eb6b5e32f93be25f08f212b0ec21d6c5dAdrian Prantl unsigned NumReturnExprs; 821fa6b079b1231366696f6a497c6a084c73a35c85dAdrian Prantl 822fa6b079b1231366696f6a497c6a084c73a35c85dAdrian Prantl /// Count the number of simple (constant) return expressions in the function. 823fa6b079b1231366696f6a497c6a084c73a35c85dAdrian Prantl unsigned NumSimpleReturnExprs; 824fa6b079b1231366696f6a497c6a084c73a35c85dAdrian Prantl 825d072e59eb6b5e32f93be25f08f212b0ec21d6c5dAdrian Prantl /// The last regular (non-return) debug location (breakpoint) in the function. 826d072e59eb6b5e32f93be25f08f212b0ec21d6c5dAdrian Prantl SourceLocation LastStopPoint; 827fa6b079b1231366696f6a497c6a084c73a35c85dAdrian Prantl 828c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smithpublic: 829c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith /// A scope within which we are constructing the fields of an object which 830c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith /// might use a CXXDefaultInitExpr. This stashes away a 'this' value to use 831c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith /// if we need to evaluate a CXXDefaultInitExpr within the evaluation. 832c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith class FieldConstructionScope { 833c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith public: 834c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith FieldConstructionScope(CodeGenFunction &CGF, llvm::Value *This) 835c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith : CGF(CGF), OldCXXDefaultInitExprThis(CGF.CXXDefaultInitExprThis) { 836c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith CGF.CXXDefaultInitExprThis = This; 837c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith } 838c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith ~FieldConstructionScope() { 839c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith CGF.CXXDefaultInitExprThis = OldCXXDefaultInitExprThis; 840c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith } 841c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith 842c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith private: 843c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith CodeGenFunction &CGF; 844c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith llvm::Value *OldCXXDefaultInitExprThis; 845c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith }; 846c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith 847c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith /// The scope of a CXXDefaultInitExpr. Within this scope, the value of 'this' 848c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith /// is overridden to be the object under construction. 849c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith class CXXDefaultInitExprScope { 850c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith public: 851c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith CXXDefaultInitExprScope(CodeGenFunction &CGF) 852c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith : CGF(CGF), OldCXXThisValue(CGF.CXXThisValue) { 853c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith CGF.CXXThisValue = CGF.CXXDefaultInitExprThis; 854c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith } 855c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith ~CXXDefaultInitExprScope() { 856c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith CGF.CXXThisValue = OldCXXThisValue; 857c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith } 858c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith 859c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith public: 860c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith CodeGenFunction &CGF; 861c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith llvm::Value *OldCXXThisValue; 862c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith }; 863c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith 864c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smithprivate: 865f6c56e2323c3f973253805a2f35629f3253ebed4Anders Carlsson /// CXXThisDecl - When generating code for a C++ member function, 866f6c56e2323c3f973253805a2f35629f3253ebed4Anders Carlsson /// this will hold the implicit 'this' declaration. 867cec5ebd4a6a89a7023d04cec728fd340b541ed61Eli Friedman ImplicitParamDecl *CXXABIThisDecl; 868cec5ebd4a6a89a7023d04cec728fd340b541ed61Eli Friedman llvm::Value *CXXABIThisValue; 8692504941793b549323f9d29c62507cf21d865fadeJohn McCall llvm::Value *CXXThisValue; 8701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 871c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith /// The value of 'this' to use when evaluating CXXDefaultInitExprs within 872c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith /// this expression. 873c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith llvm::Value *CXXDefaultInitExprThis; 874c3bf52ced9652f555aa0767bb822ec4c64546212Richard Smith 87559660c21178b6af518bd4b564e032d5c9cc218cbTimur Iskhodzhanov /// CXXStructorImplicitParamDecl - When generating code for a constructor or 87659660c21178b6af518bd4b564e032d5c9cc218cbTimur Iskhodzhanov /// destructor, this will hold the implicit argument (e.g. VTT). 87759660c21178b6af518bd4b564e032d5c9cc218cbTimur Iskhodzhanov ImplicitParamDecl *CXXStructorImplicitParamDecl; 87859660c21178b6af518bd4b564e032d5c9cc218cbTimur Iskhodzhanov llvm::Value *CXXStructorImplicitParamValue; 8799cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 880150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// OutermostConditional - Points to the outermost active 881150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// conditional control. This is used so that we know if a 882150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// temporary should be destroyed conditionally. 883150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall ConditionalEvaluation *OutermostConditional; 8841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 885495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem /// The current lexical scope. 886495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem LexicalScope *CurLexicalScope; 8877dfa4079f4b37507048b19bfc693d3b015d9dd11Anders Carlsson 8881c3db769249a633108dc320da87c48a432e2bcc1Adrian Prantl /// The current source location that should be used for exception 8891c3db769249a633108dc320da87c48a432e2bcc1Adrian Prantl /// handling code. 8901c3db769249a633108dc320da87c48a432e2bcc1Adrian Prantl SourceLocation CurEHLocation; 8911c3db769249a633108dc320da87c48a432e2bcc1Adrian Prantl 8927dfa4079f4b37507048b19bfc693d3b015d9dd11Anders Carlsson /// ByrefValueInfoMap - For each __block variable, contains a pair of the LLVM 8937dfa4079f4b37507048b19bfc693d3b015d9dd11Anders Carlsson /// type as well as the field number that contains the actual data. 8942acc6e3feda5e4f7d9009bdcf8b1cd777fecfe2dChris Lattner llvm::DenseMap<const ValueDecl *, std::pair<llvm::Type *, 8957dfa4079f4b37507048b19bfc693d3b015d9dd11Anders Carlsson unsigned> > ByRefValueInfo; 8969cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 897f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *TerminateLandingPad; 898182f383db1782af752ecaf607fdff72a8542088bMike Stump llvm::BasicBlock *TerminateHandler; 89983252dcfe61aaebcb6bc117e71dc12968729513fChris Lattner llvm::BasicBlock *TrapBB; 900940670512d7c3d93389bb38a426abcb7ef44271eEli Friedman 9010df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner /// Add a kernel metadata node to the named metadata node 'opencl.kernels'. 9020df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner /// In the kernel metadata node, reference the kernel function and metadata 9030df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner /// nodes for its optional attribute qualifiers (OpenCL 1.1 6.7.2): 90437453b9580e293eef3bd60bd36047a93ac4515b1Joey Gouly /// - A node for the vec_type_hint(<type>) qualifier contains string 90537453b9580e293eef3bd60bd36047a93ac4515b1Joey Gouly /// "vec_type_hint", an undefined value of the <type> data type, 90637453b9580e293eef3bd60bd36047a93ac4515b1Joey Gouly /// and a Boolean that is true if the <type> is integer and signed. 9070df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner /// - A node for the work_group_size_hint(X,Y,Z) qualifier contains string 9080df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner /// "work_group_size_hint", and three 32-bit integers X, Y and Z. 9090df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner /// - A node for the reqd_work_group_size(X,Y,Z) qualifier contains string 9100df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner /// "reqd_work_group_size", and three 32-bit integers X, Y and Z. 9110df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner void EmitOpenCLKernelMetadata(const FunctionDecl *FD, 9120df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner llvm::Function *Fn); 9130df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner 9145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 9154904bf4e84cfb48080270ebaa9005327f18ab0e5Fariborz Jahanian CodeGenFunction(CodeGenModule &cgm, bool suppressNewContext=false); 9161a343ebbf413e8eae6b2737b2b2d79cbf5765571John McCall ~CodeGenFunction(); 9170dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 9181e7fe751466ea82665fd21e9162fd7cc9c5f412dJohn McCall CodeGenTypes &getTypes() const { return CGM.getTypes(); } 919f2aac84709c418189e476ad591848dad50291885John McCall ASTContext &getContext() const { return CGM.getContext(); } 920a240df2ec1b374b3e9e7f760875ffb17cd64506fAlexey Samsonov /// Returns true if DebugInfo is actually initialized. 921a240df2ec1b374b3e9e7f760875ffb17cd64506fAlexey Samsonov bool maybeInitializeDebugInfo() { 922a240df2ec1b374b3e9e7f760875ffb17cd64506fAlexey Samsonov if (CGM.getModuleDebugInfo()) { 923a240df2ec1b374b3e9e7f760875ffb17cd64506fAlexey Samsonov DebugInfo = CGM.getModuleDebugInfo(); 924a240df2ec1b374b3e9e7f760875ffb17cd64506fAlexey Samsonov return true; 925a240df2ec1b374b3e9e7f760875ffb17cd64506fAlexey Samsonov } 926a240df2ec1b374b3e9e7f760875ffb17cd64506fAlexey Samsonov return false; 927a240df2ec1b374b3e9e7f760875ffb17cd64506fAlexey Samsonov } 928aa11289f754d220c9c155b68a4f84cdcfcefef6aDevang Patel CGDebugInfo *getDebugInfo() { 929aa11289f754d220c9c155b68a4f84cdcfcefef6aDevang Patel if (DisableDebugInfo) 930aa11289f754d220c9c155b68a4f84cdcfcefef6aDevang Patel return NULL; 931aa11289f754d220c9c155b68a4f84cdcfcefef6aDevang Patel return DebugInfo; 932aa11289f754d220c9c155b68a4f84cdcfcefef6aDevang Patel } 933aa11289f754d220c9c155b68a4f84cdcfcefef6aDevang Patel void disableDebugInfo() { DisableDebugInfo = true; } 934aa11289f754d220c9c155b68a4f84cdcfcefef6aDevang Patel void enableDebugInfo() { DisableDebugInfo = false; } 935aa11289f754d220c9c155b68a4f84cdcfcefef6aDevang Patel 936f85e193739c953358c865005855253af4f68a497John McCall bool shouldUseFusedARCCalls() { 937f85e193739c953358c865005855253af4f68a497John McCall return CGM.getCodeGenOpts().OptimizationLevel == 0; 938f85e193739c953358c865005855253af4f68a497John McCall } 9395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9404e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie const LangOptions &getLangOpts() const { return CGM.getLangOpts(); } 941d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall 942285cfd8953d4ca4da613a47a0d691f7234068f8cBill Wendling /// Returns a pointer to the function's exception object and selector slot, 943285cfd8953d4ca4da613a47a0d691f7234068f8cBill Wendling /// which is assigned in every landing pad. 944f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::Value *getExceptionSlot(); 94593c332a8ba2c193c435b293966d343dab15f555bJohn McCall llvm::Value *getEHSelectorSlot(); 946f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 947ae270598d5c7a9a283d4b3ddce53b151c6e2b182Bill Wendling /// Returns the contents of the function's exception object and selector 948ae270598d5c7a9a283d4b3ddce53b151c6e2b182Bill Wendling /// slots. 949ae270598d5c7a9a283d4b3ddce53b151c6e2b182Bill Wendling llvm::Value *getExceptionFromSlot(); 950ae270598d5c7a9a283d4b3ddce53b151c6e2b182Bill Wendling llvm::Value *getSelectorFromSlot(); 951ae270598d5c7a9a283d4b3ddce53b151c6e2b182Bill Wendling 952ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall llvm::Value *getNormalCleanupDestSlot(); 953ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall 954f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *getUnreachableBlock() { 955f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall if (!UnreachableBlock) { 956f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall UnreachableBlock = createBasicBlock("unreachable"); 957f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall new llvm::UnreachableInst(getLLVMContext(), UnreachableBlock); 958f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 959f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return UnreachableBlock; 960f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 961f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 962f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *getInvokeDest() { 963f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall if (!EHStack.requiresLandingPad()) return 0; 964f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return getInvokeDestImpl(); 965f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 9669834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar 96764aa4b3ec7e62288e2e66c1935487ece995ca94bJohn McCall const TargetInfo &getTarget() const { return Target; } 968d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall llvm::LLVMContext &getLLVMContext() { return CGM.getLLVMContext(); } 96969243825cb5c91ec7207256aa57ae327cfaf8cb2Owen Anderson 9709834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar //===--------------------------------------------------------------------===// 971bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall // Cleanups 972bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall //===--------------------------------------------------------------------===// 973bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall 974bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall typedef void Destroyer(CodeGenFunction &CGF, llvm::Value *addr, QualType ty); 975bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall 9762673c68aa58e277ebc755b71d81aca618cdedbf9John McCall void pushIrregularPartialArrayCleanup(llvm::Value *arrayBegin, 9772673c68aa58e277ebc755b71d81aca618cdedbf9John McCall llvm::Value *arrayEndPointer, 9782673c68aa58e277ebc755b71d81aca618cdedbf9John McCall QualType elementType, 979516bbd42e62d709013824d6fb8445a0cfda3129aPeter Collingbourne Destroyer *destroyer); 9802673c68aa58e277ebc755b71d81aca618cdedbf9John McCall void pushRegularPartialArrayCleanup(llvm::Value *arrayBegin, 9812673c68aa58e277ebc755b71d81aca618cdedbf9John McCall llvm::Value *arrayEnd, 9822673c68aa58e277ebc755b71d81aca618cdedbf9John McCall QualType elementType, 983516bbd42e62d709013824d6fb8445a0cfda3129aPeter Collingbourne Destroyer *destroyer); 984bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall 9859928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall void pushDestroy(QualType::DestructionKind dtorKind, 9869928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall llvm::Value *addr, QualType type); 987074cae0861a87bf96d8ea56d02e34839d9ccbd0aJohn McCall void pushEHDestroy(QualType::DestructionKind dtorKind, 988074cae0861a87bf96d8ea56d02e34839d9ccbd0aJohn McCall llvm::Value *addr, QualType type); 989bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall void pushDestroy(CleanupKind kind, llvm::Value *addr, QualType type, 990516bbd42e62d709013824d6fb8445a0cfda3129aPeter Collingbourne Destroyer *destroyer, bool useEHCleanupForArray); 991516bbd42e62d709013824d6fb8445a0cfda3129aPeter Collingbourne void emitDestroy(llvm::Value *addr, QualType type, Destroyer *destroyer, 9922673c68aa58e277ebc755b71d81aca618cdedbf9John McCall bool useEHCleanupForArray); 993a91f6661c4685fecee6dc09bdaef73254c1aaa06John McCall llvm::Function *generateDestroyHelper(llvm::Constant *addr, 994a91f6661c4685fecee6dc09bdaef73254c1aaa06John McCall QualType type, 995516bbd42e62d709013824d6fb8445a0cfda3129aPeter Collingbourne Destroyer *destroyer, 996a91f6661c4685fecee6dc09bdaef73254c1aaa06John McCall bool useEHCleanupForArray); 997bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall void emitArrayDestroy(llvm::Value *begin, llvm::Value *end, 998516bbd42e62d709013824d6fb8445a0cfda3129aPeter Collingbourne QualType type, Destroyer *destroyer, 999fbf780a9d1dbb191fc40c8af967c590e08724b74John McCall bool checkZeroLength, bool useEHCleanup); 1000bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall 1001516bbd42e62d709013824d6fb8445a0cfda3129aPeter Collingbourne Destroyer *getDestroyer(QualType::DestructionKind destructionKind); 10029928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall 1003bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall /// Determines whether an EH cleanup is required to destroy a type 1004bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall /// with the given destruction kind. 1005bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall bool needsEHCleanup(QualType::DestructionKind kind) { 1006bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall switch (kind) { 1007bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall case QualType::DK_none: 1008bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall return false; 1009bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall case QualType::DK_cxx_destructor: 1010bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall case QualType::DK_objc_weak_lifetime: 10114e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie return getLangOpts().Exceptions; 1012bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall case QualType::DK_objc_strong_lifetime: 10134e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie return getLangOpts().Exceptions && 1014bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall CGM.getCodeGenOpts().ObjCAutoRefCountExceptions; 1015bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall } 1016bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall llvm_unreachable("bad destruction kind"); 1017bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall } 1018bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall 10199928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall CleanupKind getCleanupKind(QualType::DestructionKind kind) { 10209928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall return (needsEHCleanup(kind) ? NormalAndEHCleanup : NormalCleanup); 10219928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall } 10229928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall 1023bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall //===--------------------------------------------------------------------===// 10249834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar // Objective-C 10259834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar //===--------------------------------------------------------------------===// 10269834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar 1027391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner void GenerateObjCMethod(const ObjCMethodDecl *OMD); 1028af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 10290dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump void StartObjCMethod(const ObjCMethodDecl *MD, 10308d3f8979e46f9d0b8735566eabe471db0e1e0e53Devang Patel const ObjCContainerDecl *CD, 10318d3f8979e46f9d0b8735566eabe471db0e1e0e53Devang Patel SourceLocation StartLoc); 1032af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 10330dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// GenerateObjCGetter - Synthesize an Objective-C property getter function. 1034fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian void GenerateObjCGetter(ObjCImplementationDecl *IMP, 1035fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian const ObjCPropertyImplDecl *PID); 10361e1f4871535f2cadcbf8c9af8cc48a2213192320John McCall void generateObjCGetterBody(const ObjCImplementationDecl *classImpl, 1037b6e5fe3cae9bf456f084c555c3ecc256f4181cc5Fariborz Jahanian const ObjCPropertyImplDecl *propImpl, 1038490a52b4947381879a47b4251db5fb81cdf5d02bFariborz Jahanian const ObjCMethodDecl *GetterMothodDecl, 1039b6e5fe3cae9bf456f084c555c3ecc256f4181cc5Fariborz Jahanian llvm::Constant *AtomicHelperFn); 10402846b97965e980ad2e7c8d444b82cc21d733a699Fariborz Jahanian 1041109dfc6ca6652f60c55ed0f2631aebf323d0200dFariborz Jahanian void GenerateObjCCtorDtorMethod(ObjCImplementationDecl *IMP, 1042109dfc6ca6652f60c55ed0f2631aebf323d0200dFariborz Jahanian ObjCMethodDecl *MD, bool ctor); 1043af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 10440dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// GenerateObjCSetter - Synthesize an Objective-C property setter function 10450dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// for the given property. 1046fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian void GenerateObjCSetter(ObjCImplementationDecl *IMP, 1047fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian const ObjCPropertyImplDecl *PID); 104871c758d3f4ecc8b511e6ae4a7210486aa994c182John McCall void generateObjCSetterBody(const ObjCImplementationDecl *classImpl, 1049cd93b96bc51c255d104095bc6a6d8eac74a84b1eFariborz Jahanian const ObjCPropertyImplDecl *propImpl, 1050cd93b96bc51c255d104095bc6a6d8eac74a84b1eFariborz Jahanian llvm::Constant *AtomicHelperFn); 10510b2bd47151ee9205ad6c66d1ffb921918106088aFariborz Jahanian bool IndirectObjCSetterArg(const CGFunctionInfo &FI); 105215bd58842adaa4f8cca4e58047ed18e033858d9bFariborz Jahanian bool IvarTypeWithAggrGCObjects(QualType Ty); 1053af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 10544e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump //===--------------------------------------------------------------------===// 10554e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump // Block Bits 10564e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump //===--------------------------------------------------------------------===// 10574e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump 10586b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall llvm::Value *EmitBlockLiteral(const BlockExpr *); 10591a343ebbf413e8eae6b2737b2b2d79cbf5765571John McCall llvm::Value *EmitBlockLiteral(const CGBlockInfo &Info); 10601a343ebbf413e8eae6b2737b2b2d79cbf5765571John McCall static void destroyBlockInfos(CGBlockInfo *info); 10612a7eb28397148079cbc8e54e8a3871ef01c4f4bcBlaine Garst llvm::Constant *BuildDescriptorBlockDecl(const BlockExpr *, 106289ecd41e0a6bfb3b0913dbe41c3c666340b308c7Fariborz Jahanian const CGBlockInfo &Info, 10632acc6e3feda5e4f7d9009bdcf8b1cd777fecfe2dChris Lattner llvm::StructType *, 1064d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall llvm::Constant *BlockVarLayout); 10654e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump 1066564360be450b319aeafc26698be9811837bfb826Fariborz Jahanian llvm::Function *GenerateBlockFunction(GlobalDecl GD, 10676b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall const CGBlockInfo &Info, 106864bee65a3436e3f0c352fcfe2130676f3502cffeEli Friedman const DeclMapTy &ldm, 106964bee65a3436e3f0c352fcfe2130676f3502cffeEli Friedman bool IsLambdaConversionToBlock); 10704e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump 1071d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall llvm::Constant *GenerateCopyHelperFunction(const CGBlockInfo &blockInfo); 1072d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall llvm::Constant *GenerateDestroyHelperFunction(const CGBlockInfo &blockInfo); 107320abee6b95c4f5a61e471b4b616439280ca4a81bFariborz Jahanian llvm::Constant *GenerateObjCAtomicSetterCopyHelperFunction( 107420abee6b95c4f5a61e471b4b616439280ca4a81bFariborz Jahanian const ObjCPropertyImplDecl *PID); 107520abee6b95c4f5a61e471b4b616439280ca4a81bFariborz Jahanian llvm::Constant *GenerateObjCAtomicGetterCopyHelperFunction( 107620abee6b95c4f5a61e471b4b616439280ca4a81bFariborz Jahanian const ObjCPropertyImplDecl *PID); 1077cae40c4d448529fe65de3d87bdbe97d3b54b4d98Eli Friedman llvm::Value *EmitBlockCopyAndAutorelease(llvm::Value *Block, QualType Ty); 1078d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall 1079d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall void BuildBlockRelease(llvm::Value *DeclPtr, BlockFieldFlags flags); 1080d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall 10815af02db5a48476e0748f135369663080eae87c64John McCall class AutoVarEmission; 10825af02db5a48476e0748f135369663080eae87c64John McCall 10835af02db5a48476e0748f135369663080eae87c64John McCall void emitByrefStructureInit(const AutoVarEmission &emission); 10845af02db5a48476e0748f135369663080eae87c64John McCall void enterByrefCleanup(const AutoVarEmission &emission); 10855af02db5a48476e0748f135369663080eae87c64John McCall 10866b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall llvm::Value *LoadBlockStruct() { 10876b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall assert(BlockPointer && "no block pointer set!"); 10886b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall return BlockPointer; 10896b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall } 10904e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump 1091ea1471e0e967548c596a71469702f8846dbaf3c0John McCall void AllocateBlockCXXThisPointer(const CXXThisExpr *E); 1092f4b88a45902af1802a1cb42ba48b1c474474f228John McCall void AllocateBlockDecl(const DeclRefExpr *E); 10936b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall llvm::Value *GetAddrOfBlockDecl(const VarDecl *var, bool ByRef); 10942acc6e3feda5e4f7d9009bdcf8b1cd777fecfe2dChris Lattner llvm::Type *BuildByRefType(const VarDecl *var); 1095dab514fc30242c7afd6c03956e46136c400fb0d3Mike Stump 1096d26bc76c98006609002d9930f8840490e88ac5b5John McCall void GenerateCode(GlobalDecl GD, llvm::Function *Fn, 1097d26bc76c98006609002d9930f8840490e88ac5b5John McCall const CGFunctionInfo &FnInfo); 1098f5ebf9bf1df10ac15ba32a4b24dfe171b7848c58John McCall void StartFunction(GlobalDecl GD, 1099f5ebf9bf1df10ac15ba32a4b24dfe171b7848c58John McCall QualType RetTy, 11007c086516f3cc9fba2733b1919973206c6ba4b171Daniel Dunbar llvm::Function *Fn, 1101d26bc76c98006609002d9930f8840490e88ac5b5John McCall const CGFunctionInfo &FnInfo, 11022284ac9ec80299fcdefae9a2787cf85105a0f203Daniel Dunbar const FunctionArgList &Args, 11039c6082fe89c61af697f017aa80937581cc2128d8Tilmann Scheller SourceLocation StartLoc); 1104a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 11059fc6a7774643a810c8501dae2323e863fefb623eJohn McCall void EmitConstructorBody(FunctionArgList &Args); 11069fc6a7774643a810c8501dae2323e863fefb623eJohn McCall void EmitDestructorBody(FunctionArgList &Args); 110756c00c4868831c9a137ca7b0e16d063cf986d110Lang Hames void emitImplicitAssignmentOperatorBody(FunctionArgList &Args); 11089fc6a7774643a810c8501dae2323e863fefb623eJohn McCall void EmitFunctionBody(FunctionArgList &Args); 1109a355e07454463b19829ac92ffd115a097faff0e0John McCall 111064bee65a3436e3f0c352fcfe2130676f3502cffeEli Friedman void EmitForwardingCallToLambda(const CXXRecordDecl *Lambda, 111164bee65a3436e3f0c352fcfe2130676f3502cffeEli Friedman CallArgList &CallArgs); 1112bd89f8c2caa9550e41daa1aa9bf30f0f1e0dfaf7Eli Friedman void EmitLambdaToBlockPointerBody(FunctionArgList &Args); 111364bee65a3436e3f0c352fcfe2130676f3502cffeEli Friedman void EmitLambdaBlockInvokeBody(); 111427dd7d962bbf774988bc5e59d04a7743ed503514Douglas Gregor void EmitLambdaDelegatingInvokeBody(const CXXMethodDecl *MD); 111527dd7d962bbf774988bc5e59d04a7743ed503514Douglas Gregor void EmitLambdaStaticInvokeFunction(const CXXMethodDecl *MD); 1116bd89f8c2caa9550e41daa1aa9bf30f0f1e0dfaf7Eli Friedman 11170dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitReturnBlock - Emit the unified return block, trying to avoid its 11180dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// emission when possible. 11190a0f93c90fd397a1aa9f97283c55f8ba0062bf55David Blaikie void EmitReturnBlock(); 11201c1d6074f5a0296dd273362655b1b8f9057289e3Daniel Dunbar 11210dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// FinishFunction - Complete IR generation of the current function. It is 11220dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// legal to call this function even if there is no current insertion point. 1123af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar void FinishFunction(SourceLocation EndLoc=SourceLocation()); 112417b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar 1125519c32880b99396034ecaedc0cd86db2e8485003Anders Carlsson /// GenerateThunk - Generate a thunk for the given method. 1126d26bc76c98006609002d9930f8840490e88ac5b5John McCall void GenerateThunk(llvm::Function *Fn, const CGFunctionInfo &FnInfo, 1127d26bc76c98006609002d9930f8840490e88ac5b5John McCall GlobalDecl GD, const ThunkInfo &Thunk); 11289cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 11297dcdf5ba9324a9577461eae302e88fdd52e310c5Eli Friedman void GenerateVarArgsThunk(llvm::Function *Fn, const CGFunctionInfo &FnInfo, 11307dcdf5ba9324a9577461eae302e88fdd52e310c5Eli Friedman GlobalDecl GD, const ThunkInfo &Thunk); 11317dcdf5ba9324a9577461eae302e88fdd52e310c5Eli Friedman 1132fb8cc253420e93cee33d29df5a2bdae6aaf16e39Douglas Gregor void EmitCtorPrologue(const CXXConstructorDecl *CD, CXXCtorType Type, 1133fb8cc253420e93cee33d29df5a2bdae6aaf16e39Douglas Gregor FunctionArgList &Args); 11341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1135b74ed087469db042325bad76fdf3ff6ed67dec09Eli Friedman void EmitInitializerForField(FieldDecl *Field, LValue LHS, Expr *Init, 1136b74ed087469db042325bad76fdf3ff6ed67dec09Eli Friedman ArrayRef<VarDecl *> ArrayIndexes); 1137b74ed087469db042325bad76fdf3ff6ed67dec09Eli Friedman 1138d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson /// InitializeVTablePointer - Initialize the vtable pointer of the given 1139d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson /// subobject. 1140d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson /// 11419cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer void InitializeVTablePointer(BaseSubobject Base, 1142b3b772ea15a4cd54879e244629aa685ead9548bbAnders Carlsson const CXXRecordDecl *NearestVBase, 1143d6fb21fa1053e5d616af55b181bb03c50d4b0d24Ken Dyck CharUnits OffsetFromNearestVBase, 1144d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson llvm::Constant *VTable, 1145d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson const CXXRecordDecl *VTableClass); 1146d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson 1147d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson typedef llvm::SmallPtrSet<const CXXRecordDecl *, 4> VisitedVirtualBasesSetTy; 11489cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer void InitializeVTablePointers(BaseSubobject Base, 1149b3b772ea15a4cd54879e244629aa685ead9548bbAnders Carlsson const CXXRecordDecl *NearestVBase, 1150d6fb21fa1053e5d616af55b181bb03c50d4b0d24Ken Dyck CharUnits OffsetFromNearestVBase, 1151603d6d12cc4cba1ef219a3d55c698c7c87f87adfAnders Carlsson bool BaseIsNonVirtualPrimaryBase, 1152603d6d12cc4cba1ef219a3d55c698c7c87f87adfAnders Carlsson llvm::Constant *VTable, 1153603d6d12cc4cba1ef219a3d55c698c7c87f87adfAnders Carlsson const CXXRecordDecl *VTableClass, 1154603d6d12cc4cba1ef219a3d55c698c7c87f87adfAnders Carlsson VisitedVirtualBasesSetTy& VBases); 115577a259c6dbf582949af8a243b472c0c7faa373a6Eli Friedman 1156603d6d12cc4cba1ef219a3d55c698c7c87f87adfAnders Carlsson void InitializeVTablePointers(const CXXRecordDecl *ClassDecl); 1157d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson 1158043fb9a1fc0609285f60f0f87e5a18195408f34cDan Gohman /// GetVTablePtr - Return the Value of the vtable pointer member pointed 1159043fb9a1fc0609285f60f0f87e5a18195408f34cDan Gohman /// to by This. 11602acc6e3feda5e4f7d9009bdcf8b1cd777fecfe2dChris Lattner llvm::Value *GetVTablePtr(llvm::Value *This, llvm::Type *Ty); 1161d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson 116250da2cadcc6da86abff6772de65280ace2cabc94John McCall /// EnterDtorCleanups - Enter the cleanups necessary to complete the 116350da2cadcc6da86abff6772de65280ace2cabc94John McCall /// given phase of destruction for a destructor. The end result 116450da2cadcc6da86abff6772de65280ace2cabc94John McCall /// should call destructors on members and base classes in reverse 116550da2cadcc6da86abff6772de65280ace2cabc94John McCall /// order of their construction. 116650da2cadcc6da86abff6772de65280ace2cabc94John McCall void EnterDtorCleanups(const CXXDestructorDecl *Dtor, CXXDtorType Type); 11671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11687255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner /// ShouldInstrumentFunction - Return true if the current function should be 11697255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner /// instrumented with __cyg_profile_func_* calls 11707255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner bool ShouldInstrumentFunction(); 11717255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner 11727255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner /// EmitFunctionInstrumentation - Emit LLVM code to call the specified 11737255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner /// instrumentation function with the current function and the call site, if 11747255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner /// function instrumentation is enabled. 11757255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner void EmitFunctionInstrumentation(const char *Fn); 11767255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner 1177be4c8705e499b55548467eb7adaa23cbc6edfef9Roman Divacky /// EmitMCountInstrumentation - Emit call to .mcount. 1178be4c8705e499b55548467eb7adaa23cbc6edfef9Roman Divacky void EmitMCountInstrumentation(); 1179be4c8705e499b55548467eb7adaa23cbc6edfef9Roman Divacky 11800dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitFunctionProlog - Emit the target specific LLVM code to load the 11810dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// arguments for the given function. This is also responsible for naming the 11820dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// LLVM function arguments. 118388b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar void EmitFunctionProlog(const CGFunctionInfo &FI, 118488b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar llvm::Function *Fn, 118517b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar const FunctionArgList &Args); 118617b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar 11870dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitFunctionEpilog - Emit the target specific LLVM code to return the 11880dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// given temporary. 1189fa6b079b1231366696f6a497c6a084c73a35c85dAdrian Prantl void EmitFunctionEpilog(const CGFunctionInfo &FI, bool EmitRetDbgLoc); 119017b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar 1191cce3d4f9812182ed4e551b7cf0fc86576be8d9c5Mike Stump /// EmitStartEHSpec - Emit the start of the exception spec. 1192cce3d4f9812182ed4e551b7cf0fc86576be8d9c5Mike Stump void EmitStartEHSpec(const Decl *D); 1193cce3d4f9812182ed4e551b7cf0fc86576be8d9c5Mike Stump 1194cce3d4f9812182ed4e551b7cf0fc86576be8d9c5Mike Stump /// EmitEndEHSpec - Emit the end of the exception spec. 1195cce3d4f9812182ed4e551b7cf0fc86576be8d9c5Mike Stump void EmitEndEHSpec(const Decl *D); 1196cce3d4f9812182ed4e551b7cf0fc86576be8d9c5Mike Stump 1197f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// getTerminateLandingPad - Return a landing pad that just calls terminate. 1198f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *getTerminateLandingPad(); 1199f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 1200f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// getTerminateHandler - Return a handler (not a landing pad, just 1201f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// a catch handler) that just calls terminate. This is used when 1202f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// a terminate scope encloses a try. 12039b39c51ae3c547568ac42325f94b4197618f6b18Mike Stump llvm::BasicBlock *getTerminateHandler(); 12049b39c51ae3c547568ac42325f94b4197618f6b18Mike Stump 12059cbe4f0ba01ec304e1e3d071c071f7bca33631c0Chris Lattner llvm::Type *ConvertTypeForMem(QualType T); 12069cbe4f0ba01ec304e1e3d071c071f7bca33631c0Chris Lattner llvm::Type *ConvertType(QualType T); 12079cbe4f0ba01ec304e1e3d071c071f7bca33631c0Chris Lattner llvm::Type *ConvertType(const TypeDecl *T) { 1208bff225ecf77fb891596ecb1b27196310d268365eJohn McCall return ConvertType(getContext().getTypeDeclType(T)); 1209bff225ecf77fb891596ecb1b27196310d268365eJohn McCall } 1210c8aa5f1f264fb230c38182adab944232bb160c2bChris Lattner 12110dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// LoadObjCSelf - Load the value of self. This function is only valid while 12120dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// generating code for an Objective-C method. 1213c8aa5f1f264fb230c38182adab944232bb160c2bChris Lattner llvm::Value *LoadObjCSelf(); 12140dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 12150dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// TypeOfSelfObject - Return type of object that this self represents. 121645012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian QualType TypeOfSelfObject(); 12174111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner 12185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// hasAggregateLLVMType - Return true if the specified AST type will map into 12195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// an aggregate LLVM type or is void. 12209d232c884ea9872d6555df0fd7359699819bc1f1John McCall static TypeEvaluationKind getEvaluationKind(QualType T); 12219d232c884ea9872d6555df0fd7359699819bc1f1John McCall 12229d232c884ea9872d6555df0fd7359699819bc1f1John McCall static bool hasScalarEvaluationKind(QualType T) { 12239d232c884ea9872d6555df0fd7359699819bc1f1John McCall return getEvaluationKind(T) == TEK_Scalar; 12249d232c884ea9872d6555df0fd7359699819bc1f1John McCall } 12259d232c884ea9872d6555df0fd7359699819bc1f1John McCall 12269d232c884ea9872d6555df0fd7359699819bc1f1John McCall static bool hasAggregateEvaluationKind(QualType T) { 12279d232c884ea9872d6555df0fd7359699819bc1f1John McCall return getEvaluationKind(T) == TEK_Aggregate; 12289d232c884ea9872d6555df0fd7359699819bc1f1John McCall } 122955e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar 123055e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar /// createBasicBlock - Create an LLVM basic block. 12314def70d3040e73707c738f7c366737a986135edfRichard Smith llvm::BasicBlock *createBasicBlock(const Twine &name = "", 1232d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall llvm::Function *parent = 0, 1233d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall llvm::BasicBlock *before = 0) { 123429ea6729155c759836be4b5453bee9ef8e1e97eeDaniel Dunbar#ifdef NDEBUG 1235d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall return llvm::BasicBlock::Create(getLLVMContext(), "", parent, before); 123629ea6729155c759836be4b5453bee9ef8e1e97eeDaniel Dunbar#else 1237d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall return llvm::BasicBlock::Create(getLLVMContext(), name, parent, before); 123829ea6729155c759836be4b5453bee9ef8e1e97eeDaniel Dunbar#endif 123955e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar } 12400dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 12415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getBasicBlockForLabel - Return the LLVM basicblock that the specified 12425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// label maps to. 1243ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner JumpDest getJumpDestForLabel(const LabelDecl *S); 12440dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1245f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// SimplifyForwardingBlocks - If the given basic block is only a branch to 1246f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// another basic block, simplify it. This assumes that no other code could 1247f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// potentially reference the basic block. 1248aa5bd87f1fd5f9ca47924248817c89325759b30eDaniel Dunbar void SimplifyForwardingBlocks(llvm::BasicBlock *BB); 1249aa5bd87f1fd5f9ca47924248817c89325759b30eDaniel Dunbar 12500dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitBlock - Emit the given block \arg BB and set it as the insert point, 12510dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// adding a fall-through branch from the current insert block if 12520dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// necessary. It is legal to call this function even if there is no current 12530dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// insertion point. 1254a0c21a8faa79e88ac432d116eca58f7a7217195dDaniel Dunbar /// 12550dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// IsFinished - If true, indicates that the caller has finished emitting 12560dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// branches to the given block and does not expect to emit code into it. This 12570dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// means the block can be ignored if it is unreachable. 1258a0c21a8faa79e88ac432d116eca58f7a7217195dDaniel Dunbar void EmitBlock(llvm::BasicBlock *BB, bool IsFinished=false); 1259824e3bd76b2e32db2ec6e4d2d113413e518d1c63Daniel Dunbar 1260777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall /// EmitBlockAfterUses - Emit the given block somewhere hopefully 1261777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall /// near its uses, and leave the insertion point in it. 1262777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall void EmitBlockAfterUses(llvm::BasicBlock *BB); 1263777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall 12640dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitBranch - Emit a branch to the specified basic block from the current 12650dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// insert block, taking care to avoid creation of branches from dummy 12660dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// blocks. It is legal to call this function even if there is no current 12670dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// insertion point. 12685e08ad3cc62ab94649959ae227a9a411a729bf49Daniel Dunbar /// 12690dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// This function clears the current insertion point. The caller should follow 12700dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// calls to this function with calls to Emit*Block prior to generation new 12710dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// code. 1272d57a871339c7c98d58d93108b806f59bdf4e13e2Daniel Dunbar void EmitBranch(llvm::BasicBlock *Block); 1273d57a871339c7c98d58d93108b806f59bdf4e13e2Daniel Dunbar 12740dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// HaveInsertPoint - True if an insertion point is defined. If not, this 12750dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// indicates that the current code being emitted is unreachable. 12760dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump bool HaveInsertPoint() const { 1277a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar return Builder.GetInsertBlock() != 0; 1278a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar } 1279a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 12800dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EnsureInsertPoint - Ensure that an insertion point is defined so that 12810dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// emitted IR has a place to go. Note that by definition, if this function 12820dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// creates a block then that block is unreachable; callers may do better to 12830dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// detect when no insertion point is defined and simply skip IR generation. 1284a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar void EnsureInsertPoint() { 1285a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar if (!HaveInsertPoint()) 1286a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar EmitBlock(createBasicBlock()); 1287a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar } 12880dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1289488e993a135ce700b982bf099c3d6b856301d642Daniel Dunbar /// ErrorUnsupported - Print out an error that codegen doesn't support the 1290dc5e8268292046114ffe02e48773572a91a310f1Chris Lattner /// specified stmt yet. 129190df4b6661968a84bf64baee489bb2f6d948fcc1Daniel Dunbar void ErrorUnsupported(const Stmt *S, const char *Type, 129290df4b6661968a84bf64baee489bb2f6d948fcc1Daniel Dunbar bool OmitOnError=false); 12935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 12955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Helpers 12965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 12970dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 12986da2c716017d5c8530ec99779524491ebc5dadb8Eli Friedman LValue MakeAddrLValue(llvm::Value *V, QualType T, 12996da2c716017d5c8530ec99779524491ebc5dadb8Eli Friedman CharUnits Alignment = CharUnits()) { 13003d5aff5d3036b0ff09d114857cd2276134b3d8c9Dan Gohman return LValue::MakeAddr(V, T, Alignment, getContext(), 13013d5aff5d3036b0ff09d114857cd2276134b3d8c9Dan Gohman CGM.getTBAAInfo(T)); 13022f77b3d57031ded0de2b7b977fb63b4660f82624Eli Friedman } 1303e0c1168ec7910a1a7ed08df4d4f0c58c2fa2ecd1John McCall 13042f77b3d57031ded0de2b7b977fb63b4660f82624Eli Friedman LValue MakeNaturalAlignAddrLValue(llvm::Value *V, QualType T) { 13056da2c716017d5c8530ec99779524491ebc5dadb8Eli Friedman CharUnits Alignment; 13066da2c716017d5c8530ec99779524491ebc5dadb8Eli Friedman if (!T->isIncompleteType()) 13076da2c716017d5c8530ec99779524491ebc5dadb8Eli Friedman Alignment = getContext().getTypeAlignInChars(T); 13082f77b3d57031ded0de2b7b977fb63b4660f82624Eli Friedman return LValue::MakeAddr(V, T, Alignment, getContext(), 13092f77b3d57031ded0de2b7b977fb63b4660f82624Eli Friedman CGM.getTBAAInfo(T)); 13105cf8bfec711116b3c4acc70a00717b2e119e7550Daniel Dunbar } 13115cf8bfec711116b3c4acc70a00717b2e119e7550Daniel Dunbar 13125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// CreateTempAlloca - This creates a alloca and inserts it into the entry 1313195337d2e5d4625ae9dc1328c7cdbc7115b0261bDaniel Dunbar /// block. The caller is responsible for setting an appropriate alignment on 1314195337d2e5d4625ae9dc1328c7cdbc7115b0261bDaniel Dunbar /// the alloca. 13152acc6e3feda5e4f7d9009bdcf8b1cd777fecfe2dChris Lattner llvm::AllocaInst *CreateTempAlloca(llvm::Type *Ty, 13168cc488fefb2fb04bc8d5398da29f0182f97934cfChris Lattner const Twine &Name = "tmp"); 13170dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1318ac418162692a951ca3796d6830496a85a2d12493John McCall /// InitTempAlloca - Provide an initial value for the given alloca. 1319ac418162692a951ca3796d6830496a85a2d12493John McCall void InitTempAlloca(llvm::AllocaInst *Alloca, llvm::Value *Value); 1320ac418162692a951ca3796d6830496a85a2d12493John McCall 13219bd4da2cfa8b956b851200db8f9a37e175edbb15Daniel Dunbar /// CreateIRTemp - Create a temporary IR object of the given type, with 13229bd4da2cfa8b956b851200db8f9a37e175edbb15Daniel Dunbar /// appropriate alignment. This routine should only be used when an temporary 13239bd4da2cfa8b956b851200db8f9a37e175edbb15Daniel Dunbar /// value needs to be stored into an alloca (for example, to avoid explicit 13249bd4da2cfa8b956b851200db8f9a37e175edbb15Daniel Dunbar /// PHI construction), but the type is the IR type, not the type appropriate 13259bd4da2cfa8b956b851200db8f9a37e175edbb15Daniel Dunbar /// for storing in memory. 13268cc488fefb2fb04bc8d5398da29f0182f97934cfChris Lattner llvm::AllocaInst *CreateIRTemp(QualType T, const Twine &Name = "tmp"); 13279bd4da2cfa8b956b851200db8f9a37e175edbb15Daniel Dunbar 1328195337d2e5d4625ae9dc1328c7cdbc7115b0261bDaniel Dunbar /// CreateMemTemp - Create a temporary memory object of the given type, with 1329195337d2e5d4625ae9dc1328c7cdbc7115b0261bDaniel Dunbar /// appropriate alignment. 13308cc488fefb2fb04bc8d5398da29f0182f97934cfChris Lattner llvm::AllocaInst *CreateMemTemp(QualType T, const Twine &Name = "tmp"); 1331195337d2e5d4625ae9dc1328c7cdbc7115b0261bDaniel Dunbar 1332558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// CreateAggTemp - Create a temporary memory object for the given 1333558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// aggregate type. 13348cc488fefb2fb04bc8d5398da29f0182f97934cfChris Lattner AggValueSlot CreateAggTemp(QualType T, const Twine &Name = "tmp") { 1335d7722d9d76a851e7897f4127626616d3b1b8e530Eli Friedman CharUnits Alignment = getContext().getTypeAlignInChars(T); 1336f394078fde147dcf27e9b6a7965517388d64dcb6Eli Friedman return AggValueSlot::forAddr(CreateMemTemp(T, Name), Alignment, 1337f394078fde147dcf27e9b6a7965517388d64dcb6Eli Friedman T.getQualifiers(), 13387c2349be2d11143a2e59a167fd43362a3bf4585eJohn McCall AggValueSlot::IsNotDestructed, 1339410ffb2bc5f072d58a73c14560345bcf77dec1ccJohn McCall AggValueSlot::DoesNotNeedGCBarriers, 1340649b4a1a9b5e6f768ca0cb84bd97b00f51083e15Chad Rosier AggValueSlot::IsNotAliased); 1341558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall } 1342558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall 1343d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall /// Emit a cast to void* in the appropriate address space. 1344d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall llvm::Value *EmitCastToVoidPtr(llvm::Value *value); 1345d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall 13465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EvaluateExprAsBool - Perform the usual unary conversions on the specified 13475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// expression and compare the result against zero, returning an Int1Ty value. 13485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::Value *EvaluateExprAsBool(const Expr *E); 13495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13502a41637a995affa1563f4d82a8b026e326a2faa0John McCall /// EmitIgnoredExpr - Emit an expression in a context which ignores the result. 13512a41637a995affa1563f4d82a8b026e326a2faa0John McCall void EmitIgnoredExpr(const Expr *E); 13522a41637a995affa1563f4d82a8b026e326a2faa0John McCall 13539b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// EmitAnyExpr - Emit code to compute the specified expression which can have 13549b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// any type. The result is returned as an RValue struct. If this is an 13559b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// aggregate expression, the aggloc/agglocvolatile arguments indicate where 13569b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// the result should be returned. 135749d1cd5a09ed3df353371fd7f206674a85e0fb45Mike Stump /// 135870517ca5c07c4b41ff8662b94ee22047b0299f8cDmitri Gribenko /// \param ignoreResult True if the resulting value isn't used. 1359558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall RValue EmitAnyExpr(const Expr *E, 1360e0c1168ec7910a1a7ed08df4d4f0c58c2fa2ecd1John McCall AggValueSlot aggSlot = AggValueSlot::ignored(), 1361e0c1168ec7910a1a7ed08df4d4f0c58c2fa2ecd1John McCall bool ignoreResult = false); 1362d9363c3a80168283b3da518b4e17f545a6246857Devang Patel 13630dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // EmitVAListRef - Emit a "reference" to a va_list; this is either the address 13640dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // or the value of the expression, depending on how va_list is defined. 13654fd0aa5803357d8c72eeac2cae15e12649ea08feEli Friedman llvm::Value *EmitVAListRef(const Expr *E); 13664fd0aa5803357d8c72eeac2cae15e12649ea08feEli Friedman 13670dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitAnyExprToTemp - Similary to EmitAnyExpr(), however, the result will 13680dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// always be accessible even if no aggregate location is provided. 1369558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall RValue EmitAnyExprToTemp(const Expr *E); 137046f45b9bec4a265ad8400a538e5ec3a5683617f1Daniel Dunbar 137160d3365b46eb826fba44483583c0051ac5c41fe3John McCall /// EmitAnyExprToMem - Emits the code necessary to evaluate an 1372649b4a1a9b5e6f768ca0cb84bd97b00f51083e15Chad Rosier /// arbitrary expression into the given memory location. 13733d3ec1c099ec8bfac3aa1fb0126fe515b7c7fa05John McCall void EmitAnyExprToMem(const Expr *E, llvm::Value *Location, 1374649b4a1a9b5e6f768ca0cb84bd97b00f51083e15Chad Rosier Qualifiers Quals, bool IsInitializer); 13753d3ec1c099ec8bfac3aa1fb0126fe515b7c7fa05John McCall 137660d3365b46eb826fba44483583c0051ac5c41fe3John McCall /// EmitExprAsInit - Emits the code necessary to initialize a 137760d3365b46eb826fba44483583c0051ac5c41fe3John McCall /// location in memory with the given initializer. 1378f85e193739c953358c865005855253af4f68a497John McCall void EmitExprAsInit(const Expr *init, const ValueDecl *D, 1379a07398ed98ea2b55ad7a505a3aab18aed93b149fJohn McCall LValue lvalue, bool capturedByInit); 138060d3365b46eb826fba44483583c0051ac5c41fe3John McCall 13813ac83d69c61238cd0d38e90fcdd03390530ab2fbFariborz Jahanian /// hasVolatileMember - returns true if aggregate type has a volatile 13823ac83d69c61238cd0d38e90fcdd03390530ab2fbFariborz Jahanian /// member. 13833ac83d69c61238cd0d38e90fcdd03390530ab2fbFariborz Jahanian bool hasVolatileMember(QualType T) { 13843ac83d69c61238cd0d38e90fcdd03390530ab2fbFariborz Jahanian if (const RecordType *RT = T->getAs<RecordType>()) { 13853ac83d69c61238cd0d38e90fcdd03390530ab2fbFariborz Jahanian const RecordDecl *RD = cast<RecordDecl>(RT->getDecl()); 13863ac83d69c61238cd0d38e90fcdd03390530ab2fbFariborz Jahanian return RD->hasVolatileMember(); 13873ac83d69c61238cd0d38e90fcdd03390530ab2fbFariborz Jahanian } 13883ac83d69c61238cd0d38e90fcdd03390530ab2fbFariborz Jahanian return false; 13893ac83d69c61238cd0d38e90fcdd03390530ab2fbFariborz Jahanian } 13908fcbb8dfbc28b6279d22144e10ade401a6c03e9eArnaud A. de Grandmaison /// EmitAggregateCopy - Emit an aggregate assignment. 13916cacae8bf9597b8124cd40aedc189c04484e1990Benjamin Kramer /// 13926cacae8bf9597b8124cd40aedc189c04484e1990Benjamin Kramer /// The difference to EmitAggregateCopy is that tail padding is not copied. 13936cacae8bf9597b8124cd40aedc189c04484e1990Benjamin Kramer /// This is required for correctness when assigning non-POD structures in C++. 13946cacae8bf9597b8124cd40aedc189c04484e1990Benjamin Kramer void EmitAggregateAssign(llvm::Value *DestPtr, llvm::Value *SrcPtr, 13953ac83d69c61238cd0d38e90fcdd03390530ab2fbFariborz Jahanian QualType EltTy) { 13963ac83d69c61238cd0d38e90fcdd03390530ab2fbFariborz Jahanian bool IsVolatile = hasVolatileMember(EltTy); 13973ac83d69c61238cd0d38e90fcdd03390530ab2fbFariborz Jahanian EmitAggregateCopy(DestPtr, SrcPtr, EltTy, IsVolatile, CharUnits::Zero(), 13983ac83d69c61238cd0d38e90fcdd03390530ab2fbFariborz Jahanian true); 13996cacae8bf9597b8124cd40aedc189c04484e1990Benjamin Kramer } 14006cacae8bf9597b8124cd40aedc189c04484e1990Benjamin Kramer 14018fcbb8dfbc28b6279d22144e10ade401a6c03e9eArnaud A. de Grandmaison /// EmitAggregateCopy - Emit an aggregate copy. 140227fe2e6c97a3782a0639d87b460741e8ba5d076dMike Stump /// 1403f3477c13eeaf11b32a41f181398fb5deffd0dd73Sylvestre Ledru /// \param isVolatile - True iff either the source or the destination is 140427fe2e6c97a3782a0639d87b460741e8ba5d076dMike Stump /// volatile. 14056cacae8bf9597b8124cd40aedc189c04484e1990Benjamin Kramer /// \param isAssignment - If false, allow padding to be copied. This often 14066cacae8bf9597b8124cd40aedc189c04484e1990Benjamin Kramer /// yields more efficient. 14077482d12c345c6391f8956850545e2d4aa7701ce6Daniel Dunbar void EmitAggregateCopy(llvm::Value *DestPtr, llvm::Value *SrcPtr, 1408bd7d82878c1588afccbee6c68fa6e17bbbab7f2cEli Friedman QualType EltTy, bool isVolatile=false, 14096cacae8bf9597b8124cd40aedc189c04484e1990Benjamin Kramer CharUnits Alignment = CharUnits::Zero(), 14106cacae8bf9597b8124cd40aedc189c04484e1990Benjamin Kramer bool isAssignment = false); 14117482d12c345c6391f8956850545e2d4aa7701ce6Daniel Dunbar 141251b09f2c528c8460b5465c676173324e44176d62Devang Patel /// StartBlock - Start new block named N. If insert block is a dummy block 141351b09f2c528c8460b5465c676173324e44176d62Devang Patel /// then reuse it. 141451b09f2c528c8460b5465c676173324e44176d62Devang Patel void StartBlock(const char *N); 141551b09f2c528c8460b5465c676173324e44176d62Devang Patel 1416dde0a94120915fa925d1ffcdb997c7b44dc9fa21Anders Carlsson /// GetAddrOfLocalVar - Return the address of a local variable. 14174c40d98ab7acf5f27fa89b17bd8fc0ef7683df37John McCall llvm::Value *GetAddrOfLocalVar(const VarDecl *VD) { 14184c40d98ab7acf5f27fa89b17bd8fc0ef7683df37John McCall llvm::Value *Res = LocalDeclMap[VD]; 14194c40d98ab7acf5f27fa89b17bd8fc0ef7683df37John McCall assert(Res && "Invalid argument to GetAddrOfLocalVar(), no decl!"); 14204c40d98ab7acf5f27fa89b17bd8fc0ef7683df37John McCall return Res; 14214c40d98ab7acf5f27fa89b17bd8fc0ef7683df37John McCall } 14220dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 142356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// getOpaqueLValueMapping - Given an opaque value expression (which 142456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// must be mapped to an l-value), return its mapping. 142556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall const LValue &getOpaqueLValueMapping(const OpaqueValueExpr *e) { 142656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall assert(OpaqueValueMapping::shouldBindAsLValue(e)); 142756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 142856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall llvm::DenseMap<const OpaqueValueExpr*,LValue>::iterator 142956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall it = OpaqueLValues.find(e); 143056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall assert(it != OpaqueLValues.end() && "no mapping for opaque value!"); 143156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return it->second; 143256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 143356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 143456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// getOpaqueRValueMapping - Given an opaque value expression (which 143556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// must be mapped to an r-value), return its mapping. 143656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall const RValue &getOpaqueRValueMapping(const OpaqueValueExpr *e) { 143756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall assert(!OpaqueValueMapping::shouldBindAsLValue(e)); 143856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 143956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall llvm::DenseMap<const OpaqueValueExpr*,RValue>::iterator 144056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall it = OpaqueRValues.find(e); 144156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall assert(it != OpaqueRValues.end() && "no mapping for opaque value!"); 1442e996ffd240f20a1048179d7727a6ee3227261921John McCall return it->second; 1443e996ffd240f20a1048179d7727a6ee3227261921John McCall } 1444e996ffd240f20a1048179d7727a6ee3227261921John McCall 14454f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman /// getAccessedFieldNo - Given an encoded value and a result number, return 14464f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman /// the input field number being accessed. 14474f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman static unsigned getAccessedFieldNo(unsigned Idx, const llvm::Constant *Elts); 14484f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman 1449ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner llvm::BlockAddress *GetAddrOfLabel(const LabelDecl *L); 14503d00fdc82fd550ae4bfbb2e700a1fc85bbd6d6fdChris Lattner llvm::BasicBlock *GetIndirectGotoBlock(); 14510ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar 14521884eb0b5c55edda4893ddec45e7dbad79758782Anders Carlsson /// EmitNullInitialization - Generate code to set a value of the given type to 14531884eb0b5c55edda4893ddec45e7dbad79758782Anders Carlsson /// null, If the type contains data member pointers, they will be initialized 14541884eb0b5c55edda4893ddec45e7dbad79758782Anders Carlsson /// to -1 in accordance with the Itanium C++ ABI. 14551884eb0b5c55edda4893ddec45e7dbad79758782Anders Carlsson void EmitNullInitialization(llvm::Value *DestPtr, QualType Ty); 1456ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson 1457ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson // EmitVAArg - Generate code to get an argument from the passed in pointer 1458ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson // and update it accordingly. The return value is a pointer to the argument. 1459ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson // FIXME: We should be able to get rid of this method and use the va_arg 14600dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // instruction in LLVM instead once it works well enough. 1461ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson llvm::Value *EmitVAArg(llvm::Value *VAListAddr, QualType Ty); 1462f666b7780d04186521adcaedb0e15dfa4d5e6933Anders Carlsson 1463bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall /// emitArrayLength - Compute the length of an array, even if it's a 1464bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall /// VLA, and drill down to the base element type. 1465bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall llvm::Value *emitArrayLength(const ArrayType *arrayType, 1466bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall QualType &baseType, 1467bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall llvm::Value *&addr); 1468bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall 1469bc8d40d85f3fa1e34569834916f18fecaa635152John McCall /// EmitVLASize - Capture all the sizes for the VLA expressions in 1470bc8d40d85f3fa1e34569834916f18fecaa635152John McCall /// the given variably-modified type and store them in the VLASizeMap. 1471d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// 1472d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// This function can be called with a null (unreachable) insert point. 1473bc8d40d85f3fa1e34569834916f18fecaa635152John McCall void EmitVariablyModifiedType(QualType Ty); 1474bc8d40d85f3fa1e34569834916f18fecaa635152John McCall 1475bc8d40d85f3fa1e34569834916f18fecaa635152John McCall /// getVLASize - Returns an LLVM value that corresponds to the size, 1476bc8d40d85f3fa1e34569834916f18fecaa635152John McCall /// in non-variably-sized elements, of a variable length array type, 1477bc8d40d85f3fa1e34569834916f18fecaa635152John McCall /// plus that largest non-variably-sized element type. Assumes that 1478bc8d40d85f3fa1e34569834916f18fecaa635152John McCall /// the type has already been emitted with EmitVariablyModifiedType. 1479bc8d40d85f3fa1e34569834916f18fecaa635152John McCall std::pair<llvm::Value*,QualType> getVLASize(const VariableArrayType *vla); 1480bc8d40d85f3fa1e34569834916f18fecaa635152John McCall std::pair<llvm::Value*,QualType> getVLASize(QualType vla); 1481dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson 14825f4307b7ba164b03c853c8d3eb4674d33f8967a6Anders Carlsson /// LoadCXXThis - Load the value of 'this'. This function is only valid while 14835f4307b7ba164b03c853c8d3eb4674d33f8967a6Anders Carlsson /// generating code for an C++ member function. 14842504941793b549323f9d29c62507cf21d865fadeJohn McCall llvm::Value *LoadCXXThis() { 14852504941793b549323f9d29c62507cf21d865fadeJohn McCall assert(CXXThisValue && "no 'this' value for this function"); 14862504941793b549323f9d29c62507cf21d865fadeJohn McCall return CXXThisValue; 14872504941793b549323f9d29c62507cf21d865fadeJohn McCall } 14881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1489c997d4278d329e18891aac9698fb991b2d4622ebAnders Carlsson /// LoadCXXVTT - Load the VTT parameter to base constructors/destructors have 1490c997d4278d329e18891aac9698fb991b2d4622ebAnders Carlsson /// virtual bases. 149159660c21178b6af518bd4b564e032d5c9cc218cbTimur Iskhodzhanov // FIXME: Every place that calls LoadCXXVTT is something 149259660c21178b6af518bd4b564e032d5c9cc218cbTimur Iskhodzhanov // that needs to be abstracted properly. 14932504941793b549323f9d29c62507cf21d865fadeJohn McCall llvm::Value *LoadCXXVTT() { 149459660c21178b6af518bd4b564e032d5c9cc218cbTimur Iskhodzhanov assert(CXXStructorImplicitParamValue && "no VTT value for this function"); 149559660c21178b6af518bd4b564e032d5c9cc218cbTimur Iskhodzhanov return CXXStructorImplicitParamValue; 149659660c21178b6af518bd4b564e032d5c9cc218cbTimur Iskhodzhanov } 149759660c21178b6af518bd4b564e032d5c9cc218cbTimur Iskhodzhanov 149859660c21178b6af518bd4b564e032d5c9cc218cbTimur Iskhodzhanov /// LoadCXXStructorImplicitParam - Load the implicit parameter 149959660c21178b6af518bd4b564e032d5c9cc218cbTimur Iskhodzhanov /// for a constructor/destructor. 150059660c21178b6af518bd4b564e032d5c9cc218cbTimur Iskhodzhanov llvm::Value *LoadCXXStructorImplicitParam() { 150159660c21178b6af518bd4b564e032d5c9cc218cbTimur Iskhodzhanov assert(CXXStructorImplicitParamValue && 150259660c21178b6af518bd4b564e032d5c9cc218cbTimur Iskhodzhanov "no implicit argument value for this function"); 150359660c21178b6af518bd4b564e032d5c9cc218cbTimur Iskhodzhanov return CXXStructorImplicitParamValue; 15042504941793b549323f9d29c62507cf21d865fadeJohn McCall } 1505bff225ecf77fb891596ecb1b27196310d268365eJohn McCall 1506bff225ecf77fb891596ecb1b27196310d268365eJohn McCall /// GetAddressOfBaseOfCompleteClass - Convert the given pointer to a 15078561a8666c70f924c8f0209c41b9b77bbbf90607Anders Carlsson /// complete class to the given direct base. 15088561a8666c70f924c8f0209c41b9b77bbbf90607Anders Carlsson llvm::Value * 15098561a8666c70f924c8f0209c41b9b77bbbf90607Anders Carlsson GetAddressOfDirectBaseInCompleteClass(llvm::Value *Value, 15108561a8666c70f924c8f0209c41b9b77bbbf90607Anders Carlsson const CXXRecordDecl *Derived, 15118561a8666c70f924c8f0209c41b9b77bbbf90607Anders Carlsson const CXXRecordDecl *Base, 15128561a8666c70f924c8f0209c41b9b77bbbf90607Anders Carlsson bool BaseIsVirtual); 1513a88ad5618fcb07c5374c79d6781a33234984b039Anders Carlsson 1514f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// GetAddressOfBaseClass - This function will add the necessary delta to the 1515f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// load of 'this' and returns address of the base class. 15169cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer llvm::Value *GetAddressOfBaseClass(llvm::Value *Value, 15178561a8666c70f924c8f0209c41b9b77bbbf90607Anders Carlsson const CXXRecordDecl *Derived, 1518f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastExpr::path_const_iterator PathBegin, 1519f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastExpr::path_const_iterator PathEnd, 152034a2d384c745ebc39cae45dc1c0c4a6a7012e09bAnders Carlsson bool NullCheckValue); 152134a2d384c745ebc39cae45dc1c0c4a6a7012e09bAnders Carlsson 1522a3697c9c155bda93fd2802f37084b620f4738822Anders Carlsson llvm::Value *GetAddressOfDerivedClass(llvm::Value *Value, 15238561a8666c70f924c8f0209c41b9b77bbbf90607Anders Carlsson const CXXRecordDecl *Derived, 1524f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastExpr::path_const_iterator PathBegin, 1525f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastExpr::path_const_iterator PathEnd, 15265a0f49ebc83e7fe0da07b9964c44b0a7fae270cbAnders Carlsson bool NullCheckValue); 1527a3697c9c155bda93fd2802f37084b620f4738822Anders Carlsson 15281d4fff5551c2347010b955b4337a2aa7d65a050eTimur Iskhodzhanov /// GetVTTParameter - Return the VTT parameter that should be passed to a 15291d4fff5551c2347010b955b4337a2aa7d65a050eTimur Iskhodzhanov /// base constructor/destructor with virtual bases. 15301d4fff5551c2347010b955b4337a2aa7d65a050eTimur Iskhodzhanov /// FIXME: VTTs are Itanium ABI-specific, so the definition should move 15311d4fff5551c2347010b955b4337a2aa7d65a050eTimur Iskhodzhanov /// to ItaniumCXXABI.cpp together with all the references to VTT. 15321d4fff5551c2347010b955b4337a2aa7d65a050eTimur Iskhodzhanov llvm::Value *GetVTTParameter(GlobalDecl GD, bool ForVirtualBase, 15331d4fff5551c2347010b955b4337a2aa7d65a050eTimur Iskhodzhanov bool Delegating); 15341d4fff5551c2347010b955b4337a2aa7d65a050eTimur Iskhodzhanov 1535c0bf462cf35fe050bddbd8bff967298e4a67e79dJohn McCall void EmitDelegateCXXConstructorCall(const CXXConstructorDecl *Ctor, 1536c0bf462cf35fe050bddbd8bff967298e4a67e79dJohn McCall CXXCtorType CtorType, 1537c0bf462cf35fe050bddbd8bff967298e4a67e79dJohn McCall const FunctionArgList &Args); 1538059ce0d92eb5a7da900ae735dc0a2ea3d64f4b0bSean Hunt // It's important not to confuse this and the previous function. Delegating 1539059ce0d92eb5a7da900ae735dc0a2ea3d64f4b0bSean Hunt // constructors are the C++0x feature. The constructor delegate optimization 1540059ce0d92eb5a7da900ae735dc0a2ea3d64f4b0bSean Hunt // is used to reduce duplication in the base and complete consturctors where 1541059ce0d92eb5a7da900ae735dc0a2ea3d64f4b0bSean Hunt // they are substantially the same. 1542059ce0d92eb5a7da900ae735dc0a2ea3d64f4b0bSean Hunt void EmitDelegatingCXXConstructorCall(const CXXConstructorDecl *Ctor, 1543059ce0d92eb5a7da900ae735dc0a2ea3d64f4b0bSean Hunt const FunctionArgList &Args); 1544155ed4a23366f4514befb1c9f5f89d16f8b8b6dbAnders Carlsson void EmitCXXConstructorCall(const CXXConstructorDecl *D, CXXCtorType Type, 1545378e1e739aed97e9b278beeb20e9f5bbe34c0232Douglas Gregor bool ForVirtualBase, bool Delegating, 1546378e1e739aed97e9b278beeb20e9f5bbe34c0232Douglas Gregor llvm::Value *This, 1547b14095aa98c6fedd3625920c4ce834bcaf24d9f7Anders Carlsson CallExpr::const_arg_iterator ArgBeg, 1548b14095aa98c6fedd3625920c4ce834bcaf24d9f7Anders Carlsson CallExpr::const_arg_iterator ArgEnd); 154934999876e215b22febc240b1a6dc054215d12f9cFariborz Jahanian 155034999876e215b22febc240b1a6dc054215d12f9cFariborz Jahanian void EmitSynthesizedCXXCopyCtorCall(const CXXConstructorDecl *D, 155134999876e215b22febc240b1a6dc054215d12f9cFariborz Jahanian llvm::Value *This, llvm::Value *Src, 155234999876e215b22febc240b1a6dc054215d12f9cFariborz Jahanian CallExpr::const_arg_iterator ArgBeg, 155334999876e215b22febc240b1a6dc054215d12f9cFariborz Jahanian CallExpr::const_arg_iterator ArgEnd); 15541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1555288dcaf329c49b01dacd5c1dd9f35609555feecdFariborz Jahanian void EmitCXXAggrConstructorCall(const CXXConstructorDecl *D, 1556569c1f4a6c703eaa8b963bed7d5c2fd5d4569e93Anders Carlsson const ConstantArrayType *ArrayTy, 15575d4d946ec2d88696fd8422aeb64dc29688e6a2c1Anders Carlsson llvm::Value *ArrayPtr, 15585d4d946ec2d88696fd8422aeb64dc29688e6a2c1Anders Carlsson CallExpr::const_arg_iterator ArgBeg, 155959174c0633fb5cde41735cfbff5744bdf837e8d9Douglas Gregor CallExpr::const_arg_iterator ArgEnd, 156059174c0633fb5cde41735cfbff5744bdf837e8d9Douglas Gregor bool ZeroInitialization = false); 15619cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 1562569c1f4a6c703eaa8b963bed7d5c2fd5d4569e93Anders Carlsson void EmitCXXAggrConstructorCall(const CXXConstructorDecl *D, 1563569c1f4a6c703eaa8b963bed7d5c2fd5d4569e93Anders Carlsson llvm::Value *NumElements, 15645d4d946ec2d88696fd8422aeb64dc29688e6a2c1Anders Carlsson llvm::Value *ArrayPtr, 15655d4d946ec2d88696fd8422aeb64dc29688e6a2c1Anders Carlsson CallExpr::const_arg_iterator ArgBeg, 156659174c0633fb5cde41735cfbff5744bdf837e8d9Douglas Gregor CallExpr::const_arg_iterator ArgEnd, 156759174c0633fb5cde41735cfbff5744bdf837e8d9Douglas Gregor bool ZeroInitialization = false); 1568b14095aa98c6fedd3625920c4ce834bcaf24d9f7Anders Carlsson 1569bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall static Destroyer destroyCXXObject; 1570bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall 15717267c1693abe7875b0c57268be05005ae013c6c9Anders Carlsson void EmitCXXDestructorCall(const CXXDestructorDecl *D, CXXDtorType Type, 1572378e1e739aed97e9b278beeb20e9f5bbe34c0232Douglas Gregor bool ForVirtualBase, bool Delegating, 1573378e1e739aed97e9b278beeb20e9f5bbe34c0232Douglas Gregor llvm::Value *This); 15749cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 1575197056726ed6412501130c2ef2ff69009772aa65John McCall void EmitNewArrayInitializer(const CXXNewExpr *E, QualType elementType, 1576197056726ed6412501130c2ef2ff69009772aa65John McCall llvm::Value *NewPtr, llvm::Value *NumElements); 15771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 157886811609d9353e3aed198045d56e790eb3b6118cPeter Collingbourne void EmitCXXTemporary(const CXXTemporary *Temporary, QualType TempType, 157986811609d9353e3aed198045d56e790eb3b6118cPeter Collingbourne llvm::Value *Ptr); 15801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1581a00703dccbdc6cc4a293db38477dea7db5538c7eAnders Carlsson llvm::Value *EmitCXXNewExpr(const CXXNewExpr *E); 158260e282cc1e508be327b0481cecedc206873cb86aAnders Carlsson void EmitCXXDeleteExpr(const CXXDeleteExpr *E); 15831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15844bf8152799ec41796f989ea1b94f6f1bac349117Eli Friedman void EmitDeleteCall(const FunctionDecl *DeleteFD, llvm::Value *Ptr, 15854bf8152799ec41796f989ea1b94f6f1bac349117Eli Friedman QualType DeleteTy); 15864bf8152799ec41796f989ea1b94f6f1bac349117Eli Friedman 1587c2e84ae9a6d25cea3e583c768e576b4c981ec028Mike Stump llvm::Value* EmitCXXTypeidExpr(const CXXTypeidExpr *E); 1588c849c052d6b4b70f2651c1969531861a5f230053Mike Stump llvm::Value *EmitDynamicCast(llvm::Value *V, const CXXDynamicCastExpr *DCE); 1589c5f804636e367ef744fd24cf88f7c956a5af0434Nico Weber llvm::Value* EmitCXXUuidofExpr(const CXXUuidofExpr *E); 1590c2e84ae9a6d25cea3e583c768e576b4c981ec028Mike Stump 1591972edf0534d8a50f87fac1d0ff34eb22f593df11Sebastian Redl void MaybeEmitStdInitializerListCleanup(llvm::Value *loc, const Expr *init); 1592af130fd78267ee9e2395b758a7d827b07ce317a0Sebastian Redl void EmitStdInitializerListCleanup(llvm::Value *loc, 1593af130fd78267ee9e2395b758a7d827b07ce317a0Sebastian Redl const InitListExpr *init); 159432cf1f27ae8620e7b79bb4e81a067187c0aab7aeSebastian Redl 15952c9f87ca5cccbfdaad82762368af5b2323320653Richard Smith /// \brief Situations in which we might emit a check for the suitability of a 15962c9f87ca5cccbfdaad82762368af5b2323320653Richard Smith /// pointer or glvalue. 15977ac9ef1c82c779a5348ed11b3d10e01c58803b35Richard Smith enum TypeCheckKind { 15982c9f87ca5cccbfdaad82762368af5b2323320653Richard Smith /// Checking the operand of a load. Must be suitably sized and aligned. 15997ac9ef1c82c779a5348ed11b3d10e01c58803b35Richard Smith TCK_Load, 16002c9f87ca5cccbfdaad82762368af5b2323320653Richard Smith /// Checking the destination of a store. Must be suitably sized and aligned. 16017ac9ef1c82c779a5348ed11b3d10e01c58803b35Richard Smith TCK_Store, 16022c9f87ca5cccbfdaad82762368af5b2323320653Richard Smith /// Checking the bound value in a reference binding. Must be suitably sized 16032c9f87ca5cccbfdaad82762368af5b2323320653Richard Smith /// and aligned, but is not required to refer to an object (until the 16042c9f87ca5cccbfdaad82762368af5b2323320653Richard Smith /// reference is used), per core issue 453. 16057ac9ef1c82c779a5348ed11b3d10e01c58803b35Richard Smith TCK_ReferenceBinding, 16062c9f87ca5cccbfdaad82762368af5b2323320653Richard Smith /// Checking the object expression in a non-static data member access. Must 16072c9f87ca5cccbfdaad82762368af5b2323320653Richard Smith /// be an object within its lifetime. 16087ac9ef1c82c779a5348ed11b3d10e01c58803b35Richard Smith TCK_MemberAccess, 16092c9f87ca5cccbfdaad82762368af5b2323320653Richard Smith /// Checking the 'this' pointer for a call to a non-static member function. 16102c9f87ca5cccbfdaad82762368af5b2323320653Richard Smith /// Must be an object within its lifetime. 16118e1cee6f23e2552b96b81e5ef419ab3f69c5b5c2Richard Smith TCK_MemberCall, 16128e1cee6f23e2552b96b81e5ef419ab3f69c5b5c2Richard Smith /// Checking the 'this' pointer for a constructor call. 1613c764830bdb6de82baed068889096bd3e52d4cbdaRichard Smith TCK_ConstructorCall, 1614c764830bdb6de82baed068889096bd3e52d4cbdaRichard Smith /// Checking the operand of a static_cast to a derived pointer type. Must be 1615c764830bdb6de82baed068889096bd3e52d4cbdaRichard Smith /// null or an object within its lifetime. 1616c764830bdb6de82baed068889096bd3e52d4cbdaRichard Smith TCK_DowncastPointer, 1617c764830bdb6de82baed068889096bd3e52d4cbdaRichard Smith /// Checking the operand of a static_cast to a derived reference type. Must 1618c764830bdb6de82baed068889096bd3e52d4cbdaRichard Smith /// be an object within its lifetime. 1619c764830bdb6de82baed068889096bd3e52d4cbdaRichard Smith TCK_DowncastReference 16202c9f87ca5cccbfdaad82762368af5b2323320653Richard Smith }; 16212c9f87ca5cccbfdaad82762368af5b2323320653Richard Smith 16227ac9ef1c82c779a5348ed11b3d10e01c58803b35Richard Smith /// \brief Emit a check that \p V is the address of storage of the 16232c9f87ca5cccbfdaad82762368af5b2323320653Richard Smith /// appropriate size and alignment for an object of type \p Type. 16244def70d3040e73707c738f7c366737a986135edfRichard Smith void EmitTypeCheck(TypeCheckKind TCK, SourceLocation Loc, llvm::Value *V, 16257ac9ef1c82c779a5348ed11b3d10e01c58803b35Richard Smith QualType Type, CharUnits Alignment = CharUnits::Zero()); 1626b14e62d5aee7522b98c410ee65bd750c2cfe6f01Mike Stump 1627a0a628f839cf50844cc0f226bd9cb72485f98f91Richard Smith /// \brief Emit a check that \p Base points into an array object, which 1628a0a628f839cf50844cc0f226bd9cb72485f98f91Richard Smith /// we can access at index \p Index. \p Accessed should be \c false if we 1629a0a628f839cf50844cc0f226bd9cb72485f98f91Richard Smith /// this expression is used as an lvalue, for instance in "&Arr[Idx]". 1630a0a628f839cf50844cc0f226bd9cb72485f98f91Richard Smith void EmitBoundsCheck(const Expr *E, const Expr *Base, llvm::Value *Index, 1631a0a628f839cf50844cc0f226bd9cb72485f98f91Richard Smith QualType IndexType, bool Accessed); 1632a0a628f839cf50844cc0f226bd9cb72485f98f91Richard Smith 1633dd36d328730d8c02915d0884541b45ec6ca0049dChris Lattner llvm::Value *EmitScalarPrePostIncDec(const UnaryOperator *E, LValue LV, 1634dd36d328730d8c02915d0884541b45ec6ca0049dChris Lattner bool isInc, bool isPre); 1635dd36d328730d8c02915d0884541b45ec6ca0049dChris Lattner ComplexPairTy EmitComplexPrePostIncDec(const UnaryOperator *E, LValue LV, 1636dd36d328730d8c02915d0884541b45ec6ca0049dChris Lattner bool isInc, bool isPre); 16375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 16385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Declaration Emission 16395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 16400dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1641d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// EmitDecl - Emit a declaration. 1642d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// 1643d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// This function can be called with a null (unreachable) insert point. 16445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitDecl(const Decl &D); 1645d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar 1646b6bbcc9995186799a60ce17d0c1acff31601653aJohn McCall /// EmitVarDecl - Emit a local variable declaration. 1647d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// 1648d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// This function can be called with a null (unreachable) insert point. 1649b6bbcc9995186799a60ce17d0c1acff31601653aJohn McCall void EmitVarDecl(const VarDecl &D); 1650d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar 1651f85e193739c953358c865005855253af4f68a497John McCall void EmitScalarInit(const Expr *init, const ValueDecl *D, 1652a07398ed98ea2b55ad7a505a3aab18aed93b149fJohn McCall LValue lvalue, bool capturedByInit); 16537acddacc921cd0b3f813443a8641eeddb82dfbd4John McCall void EmitScalarInit(llvm::Value *init, LValue lvalue); 1654f85e193739c953358c865005855253af4f68a497John McCall 1655f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall typedef void SpecialInitFn(CodeGenFunction &Init, const VarDecl &D, 1656f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::Value *Address); 1657f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 1658b6bbcc9995186799a60ce17d0c1acff31601653aJohn McCall /// EmitAutoVarDecl - Emit an auto variable declaration. 1659d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// 1660d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// This function can be called with a null (unreachable) insert point. 166134695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall void EmitAutoVarDecl(const VarDecl &D); 166234695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall 166334695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall class AutoVarEmission { 166434695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall friend class CodeGenFunction; 166534695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall 166657b3b6a60856eaec30fd876a8a3face8f7e3ad7bJohn McCall const VarDecl *Variable; 166734695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall 166834695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall /// The alignment of the variable. 166934695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall CharUnits Alignment; 167034695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall 167134695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall /// The address of the alloca. Null if the variable was emitted 167234695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall /// as a global constant. 167334695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall llvm::Value *Address; 167434695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall 167534695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall llvm::Value *NRVOFlag; 167634695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall 167734695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall /// True if the variable is a __block variable. 167834695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall bool IsByRef; 167934695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall 168034695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall /// True if the variable is of aggregate type and has a constant 168134695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall /// initializer. 168234695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall bool IsConstantAggregate; 168334695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall 1684495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem /// Non-null if we should use lifetime annotations. 1685495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem llvm::Value *SizeForLifetimeMarkers; 1686495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem 168757b3b6a60856eaec30fd876a8a3face8f7e3ad7bJohn McCall struct Invalid {}; 168857b3b6a60856eaec30fd876a8a3face8f7e3ad7bJohn McCall AutoVarEmission(Invalid) : Variable(0) {} 168957b3b6a60856eaec30fd876a8a3face8f7e3ad7bJohn McCall 169034695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall AutoVarEmission(const VarDecl &variable) 169157b3b6a60856eaec30fd876a8a3face8f7e3ad7bJohn McCall : Variable(&variable), Address(0), NRVOFlag(0), 1692495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem IsByRef(false), IsConstantAggregate(false), 1693495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem SizeForLifetimeMarkers(0) {} 169434695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall 169534695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall bool wasEmittedAsGlobal() const { return Address == 0; } 169634695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall 169734695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall public: 169857b3b6a60856eaec30fd876a8a3face8f7e3ad7bJohn McCall static AutoVarEmission invalid() { return AutoVarEmission(Invalid()); } 1699495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem 1700495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem bool useLifetimeMarkers() const { return SizeForLifetimeMarkers != 0; } 1701495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem llvm::Value *getSizeForLifetimeMarkers() const { 1702495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem assert(useLifetimeMarkers()); 1703495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem return SizeForLifetimeMarkers; 1704495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem } 1705495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem 1706495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem /// Returns the raw, allocated address, which is not necessarily 1707495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem /// the address of the object itself. 1708495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem llvm::Value *getAllocatedAddress() const { 1709495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem return Address; 1710495cfa46300979642acde8d93a1f21c9291dac98Nadav Rotem } 171157b3b6a60856eaec30fd876a8a3face8f7e3ad7bJohn McCall 171234695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall /// Returns the address of the object within this declaration. 171334695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall /// Note that this does not chase the forwarding pointer for 171434695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall /// __block decls. 171534695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall llvm::Value *getObjectAddress(CodeGenFunction &CGF) const { 171634695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall if (!IsByRef) return Address; 171734695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall 171834695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall return CGF.Builder.CreateStructGEP(Address, 171957b3b6a60856eaec30fd876a8a3face8f7e3ad7bJohn McCall CGF.getByRefValueLLVMField(Variable), 172057b3b6a60856eaec30fd876a8a3face8f7e3ad7bJohn McCall Variable->getNameAsString()); 172134695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall } 172234695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall }; 172334695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall AutoVarEmission EmitAutoVarAlloca(const VarDecl &var); 172434695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall void EmitAutoVarInit(const AutoVarEmission &emission); 172534695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall void EmitAutoVarCleanups(const AutoVarEmission &emission); 1726bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall void emitAutoVarTypeCleanup(const AutoVarEmission &emission, 1727bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall QualType::DestructionKind dtorKind); 1728d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar 1729b6bbcc9995186799a60ce17d0c1acff31601653aJohn McCall void EmitStaticVarDecl(const VarDecl &D, 1730b6bbcc9995186799a60ce17d0c1acff31601653aJohn McCall llvm::GlobalValue::LinkageTypes Linkage); 1731b7ec246872b412f0e7bb9e93eacfd78cfa6adfb3Daniel Dunbar 1732b7ec246872b412f0e7bb9e93eacfd78cfa6adfb3Daniel Dunbar /// EmitParmDecl - Emit a ParmVarDecl or an ImplicitParamDecl. 1733093ac461b37a573dcf226fa55faed96f318169b9Devang Patel void EmitParmDecl(const VarDecl &D, llvm::Value *Arg, unsigned ArgNo); 17340dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 173556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// protectFromPeepholes - Protect a value that we're intending to 173656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// store to the side, but which will probably be used later, from 173756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// aggressive peepholing optimizations that might delete it. 173856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// 173956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// Pass the result to unprotectFromPeepholes to declare that 174056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// protection is no longer required. 174156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// 174256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// There's no particular reason why this shouldn't apply to 174356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// l-values, it's just that no existing peepholes work on pointers. 174456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall PeepholeProtection protectFromPeepholes(RValue rvalue); 174556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall void unprotectFromPeepholes(PeepholeProtection protection); 174656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 17475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 17485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Statement Emission 17495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 17505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 17510dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitStopPoint - Emit a debug stoppoint if we are emitting debug info. 17520912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar void EmitStopPoint(const Stmt *S); 17530912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar 17540dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitStmt - Emit the code for the statement \arg S. It is legal to call 17550dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// this function even if there is no current insertion point. 17560dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// 17570dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// This function may clear the current insertion point; callers should use 17580dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EnsureInsertPoint if they wish to subsequently generate code without first 17590dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// calling EmitBlock, EmitBranch, or EmitStmt. 17605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitStmt(const Stmt *S); 1761a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 17620912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar /// EmitSimpleStmt - Try to emit a "simple" statement which does not 17630dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// necessarily require an insertion point or debug information; typically 17640dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// because the statement amounts to a jump or a container of other 17650dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// statements. 17660912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar /// 17670912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar /// \return True if the statement was handled. 17680912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar bool EmitSimpleStmt(const Stmt *S); 17690912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar 17702ac2fa7726eb2f6fe445e098489e92931c31f7caEli Friedman llvm::Value *EmitCompoundStmt(const CompoundStmt &S, bool GetLast = false, 17712ac2fa7726eb2f6fe445e098489e92931c31f7caEli Friedman AggValueSlot AVS = AggValueSlot::ignored()); 17722ac2fa7726eb2f6fe445e098489e92931c31f7caEli Friedman llvm::Value *EmitCompoundStmtWithoutScope(const CompoundStmt &S, 17732ac2fa7726eb2f6fe445e098489e92931c31f7caEli Friedman bool GetLast = false, 17742ac2fa7726eb2f6fe445e098489e92931c31f7caEli Friedman AggValueSlot AVS = 17752ac2fa7726eb2f6fe445e098489e92931c31f7caEli Friedman AggValueSlot::ignored()); 1776a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 17770dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitLabel - Emit the block for the given label. It is legal to call this 17780dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// function even if there is no current insertion point. 1779ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner void EmitLabel(const LabelDecl *D); // helper for EmitLabelStmt. 1780a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 17815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitLabelStmt(const LabelStmt &S); 1782534986f2b21e6050bf00163cd6423fd92155a6edRichard Smith void EmitAttributedStmt(const AttributedStmt &S); 17835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitGotoStmt(const GotoStmt &S); 17840ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar void EmitIndirectGotoStmt(const IndirectGotoStmt &S); 17855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitIfStmt(const IfStmt &S); 17865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitWhileStmt(const WhileStmt &S); 17875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitDoStmt(const DoStmt &S); 17885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitForStmt(const ForStmt &S); 17895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitReturnStmt(const ReturnStmt &S); 17905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitDeclStmt(const DeclStmt &S); 17910912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar void EmitBreakStmt(const BreakStmt &S); 17920912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar void EmitContinueStmt(const ContinueStmt &S); 179351b09f2c528c8460b5465c676173324e44176d62Devang Patel void EmitSwitchStmt(const SwitchStmt &S); 179451b09f2c528c8460b5465c676173324e44176d62Devang Patel void EmitDefaultStmt(const DefaultStmt &S); 179551b09f2c528c8460b5465c676173324e44176d62Devang Patel void EmitCaseStmt(const CaseStmt &S); 1796c049e4f406a7f7179eba98659044a32508e53289Devang Patel void EmitCaseStmtRange(const CaseStmt &S); 1797a23b91d542e336be5051ac54f394e860fb756911Chad Rosier void EmitAsmStmt(const AsmStmt &S); 17980dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 17993d8400d9a61aa4b63ff35e5cede405b32a41425eAnders Carlsson void EmitObjCForCollectionStmt(const ObjCForCollectionStmt &S); 180064d5d6c5903157c521af496479d06dc26032d718Anders Carlsson void EmitObjCAtTryStmt(const ObjCAtTryStmt &S); 180164d5d6c5903157c521af496479d06dc26032d718Anders Carlsson void EmitObjCAtThrowStmt(const ObjCAtThrowStmt &S); 180210cac6f7115b59a466bb8d2d51cdddeb38aadc37Chris Lattner void EmitObjCAtSynchronizedStmt(const ObjCAtSynchronizedStmt &S); 1803f85e193739c953358c865005855253af4f68a497John McCall void EmitObjCAutoreleasePoolStmt(const ObjCAutoreleasePoolStmt &S); 18040dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 180593c332a8ba2c193c435b293966d343dab15f555bJohn McCall llvm::Constant *getUnwindResumeFn(); 180686a3a03667bdb0dcab7e6a2877dfd234b07a6d43Douglas Gregor llvm::Constant *getUnwindResumeOrRethrowFn(); 180759a7000a79118e4c140885ccbb2ac6a686a73092John McCall void EnterCXXTryStmt(const CXXTryStmt &S, bool IsFnTryBlock = false); 180859a7000a79118e4c140885ccbb2ac6a686a73092John McCall void ExitCXXTryStmt(const CXXTryStmt &S, bool IsFnTryBlock = false); 18099fc6a7774643a810c8501dae2323e863fefb623eJohn McCall 18106815e941998659a55c20c147861b0f437928c3d8Anders Carlsson void EmitCXXTryStmt(const CXXTryStmt &S); 1811ad762fcdc16b9e4705b12b09d92b8c026212b906Richard Smith void EmitCXXForRangeStmt(const CXXForRangeStmt &S); 18129cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 1813524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir llvm::Function *EmitCapturedStmt(const CapturedStmt &S, CapturedRegionKind K); 1814524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir llvm::Function *GenerateCapturedStmtFunction(const CapturedDecl *CD, 1815524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir const RecordDecl *RD); 1816524387ae3dfc0c4cf2b095f83f9e47aa549b7e55Ben Langmuir 18175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 18185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // LValue Expression Emission 18195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 18205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 182113e81737a433b23f8c662d10d1d57356122a8caaDaniel Dunbar /// GetUndefRValue - Get an appropriate 'undef' rvalue for the given type. 182213e81737a433b23f8c662d10d1d57356122a8caaDaniel Dunbar RValue GetUndefRValue(QualType Ty); 182313e81737a433b23f8c662d10d1d57356122a8caaDaniel Dunbar 1824ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar /// EmitUnsupportedRValue - Emit a dummy r-value using the type of E 1825ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar /// and issue an ErrorUnsupported style diagnostic (using the 1826ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar /// provided Name). 1827ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar RValue EmitUnsupportedRValue(const Expr *E, 1828ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar const char *Name); 1829ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar 18300dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitUnsupportedLValue - Emit a dummy l-value using the type of E and issue 18310dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// an ErrorUnsupported style diagnostic (using the provided Name). 18326ba82a4a4b295e54cf192c3e98b28f39990c6194Daniel Dunbar LValue EmitUnsupportedLValue(const Expr *E, 18336ba82a4a4b295e54cf192c3e98b28f39990c6194Daniel Dunbar const char *Name); 18346ba82a4a4b295e54cf192c3e98b28f39990c6194Daniel Dunbar 18355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EmitLValue - Emit code to compute a designator that specifies the location 18365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// of the expression. 18375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 18385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// This can return one of two things: a simple address or a bitfield 18395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// reference. In either case, the LLVM Value* in the LValue structure is 18405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// guaranteed to be an LLVM pointer type. 18415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 18425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// If this returns a bitfield reference, nothing about the pointee type of 18435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// the LLVM value is known: For example, it may not be a pointer to an 18445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// integer. 18455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 18465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// If this returns a normal address, and if the lvalue's C type is fixed 18475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// size, this method guarantees that the returned pointer type will point to 18485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// an LLVM type of the same size of the lvalue's type. If the lvalue has a 18495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// variable length type, this is not possible. 18505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 18515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitLValue(const Expr *E); 18520dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 18537ac9ef1c82c779a5348ed11b3d10e01c58803b35Richard Smith /// \brief Same as EmitLValue but additionally we generate checking code to 18547ac9ef1c82c779a5348ed11b3d10e01c58803b35Richard Smith /// guard against undefined behavior. This is only suitable when we know 18557ac9ef1c82c779a5348ed11b3d10e01c58803b35Richard Smith /// that the address will be used to access the object. 18567ac9ef1c82c779a5348ed11b3d10e01c58803b35Richard Smith LValue EmitCheckedLValue(const Expr *E, TypeCheckKind TCK); 1857b14e62d5aee7522b98c410ee65bd750c2cfe6f01Mike Stump 18589d232c884ea9872d6555df0fd7359699819bc1f1John McCall RValue convertTempToRValue(llvm::Value *addr, QualType type); 18599d232c884ea9872d6555df0fd7359699819bc1f1John McCall 18609eda3abe7e183b05834947391c0cdc291f4ee0d8John McCall void EmitAtomicInit(Expr *E, LValue lvalue); 18619eda3abe7e183b05834947391c0cdc291f4ee0d8John McCall 18629eda3abe7e183b05834947391c0cdc291f4ee0d8John McCall RValue EmitAtomicLoad(LValue lvalue, 18639eda3abe7e183b05834947391c0cdc291f4ee0d8John McCall AggValueSlot slot = AggValueSlot::ignored()); 18649eda3abe7e183b05834947391c0cdc291f4ee0d8John McCall 18659eda3abe7e183b05834947391c0cdc291f4ee0d8John McCall void EmitAtomicStore(RValue rvalue, LValue lvalue, bool isInit); 18669eda3abe7e183b05834947391c0cdc291f4ee0d8John McCall 186726815d97c5743481e317f17a8d53a6819d061862John McCall /// EmitToMemory - Change a scalar value from its value 186826815d97c5743481e317f17a8d53a6819d061862John McCall /// representation to its in-memory representation. 186926815d97c5743481e317f17a8d53a6819d061862John McCall llvm::Value *EmitToMemory(llvm::Value *Value, QualType Ty); 187026815d97c5743481e317f17a8d53a6819d061862John McCall 187126815d97c5743481e317f17a8d53a6819d061862John McCall /// EmitFromMemory - Change a scalar value from its memory 187226815d97c5743481e317f17a8d53a6819d061862John McCall /// representation to its value representation. 187326815d97c5743481e317f17a8d53a6819d061862John McCall llvm::Value *EmitFromMemory(llvm::Value *Value, QualType Ty); 187426815d97c5743481e317f17a8d53a6819d061862John McCall 18759d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// EmitLoadOfScalar - Load a scalar value from an address, taking 18769d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// care to appropriately convert from the memory representation to 18779d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// the LLVM value representation. 187809429b962811f2c0a7a81a1b0a89f96f5878b20cMike Stump llvm::Value *EmitLoadOfScalar(llvm::Value *Addr, bool Volatile, 18793d5aff5d3036b0ff09d114857cd2276134b3d8c9Dan Gohman unsigned Alignment, QualType Ty, 1880b37a73d5c6a0c8bb1f6e363d3b53980e4fa0ceadManman Ren llvm::MDNode *TBAAInfo = 0, 1881b37a73d5c6a0c8bb1f6e363d3b53980e4fa0ceadManman Ren QualType TBAABaseTy = QualType(), 1882b37a73d5c6a0c8bb1f6e363d3b53980e4fa0ceadManman Ren uint64_t TBAAOffset = 0); 1883545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall 1884545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall /// EmitLoadOfScalar - Load a scalar value from an address, taking 1885545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall /// care to appropriately convert from the memory representation to 1886545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall /// the LLVM value representation. The l-value must be a simple 1887545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall /// l-value. 1888a07398ed98ea2b55ad7a505a3aab18aed93b149fJohn McCall llvm::Value *EmitLoadOfScalar(LValue lvalue); 18899d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar 18909d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// EmitStoreOfScalar - Store a scalar value to an address, taking 18919d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// care to appropriately convert from the memory representation to 18929d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// the LLVM value representation. 189309429b962811f2c0a7a81a1b0a89f96f5878b20cMike Stump void EmitStoreOfScalar(llvm::Value *Value, llvm::Value *Addr, 18943d5aff5d3036b0ff09d114857cd2276134b3d8c9Dan Gohman bool Volatile, unsigned Alignment, QualType Ty, 1895b37a73d5c6a0c8bb1f6e363d3b53980e4fa0ceadManman Ren llvm::MDNode *TBAAInfo = 0, bool isInit = false, 1896b37a73d5c6a0c8bb1f6e363d3b53980e4fa0ceadManman Ren QualType TBAABaseTy = QualType(), 1897b37a73d5c6a0c8bb1f6e363d3b53980e4fa0ceadManman Ren uint64_t TBAAOffset = 0); 1898545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall 1899545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall /// EmitStoreOfScalar - Store a scalar value to an address, taking 1900545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall /// care to appropriately convert from the memory representation to 1901545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall /// the LLVM value representation. The l-value must be a simple 19027a7ee3033e44b45630981355460ef89efa0bdcc4David Chisnall /// l-value. The isInit flag indicates whether this is an initialization. 19037a7ee3033e44b45630981355460ef89efa0bdcc4David Chisnall /// If so, atomic qualifiers are ignored and the store is always non-atomic. 19047a7ee3033e44b45630981355460ef89efa0bdcc4David Chisnall void EmitStoreOfScalar(llvm::Value *value, LValue lvalue, bool isInit=false); 19059d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar 19065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EmitLoadOfLValue - Given an expression that represents a value lvalue, 19075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// this method emits the address of the lvalue, then loads the result as an 19085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// rvalue, returning the rvalue. 1909545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall RValue EmitLoadOfLValue(LValue V); 1910545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall RValue EmitLoadOfExtVectorElementLValue(LValue V); 1911545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall RValue EmitLoadOfBitfieldLValue(LValue LV); 19120dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 19135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EmitStoreThroughLValue - Store the specified rvalue into the specified 19145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// lvalue, where both are guaranteed to the have the same type, and that type 19155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// is 'Ty'. 19167a7ee3033e44b45630981355460ef89efa0bdcc4David Chisnall void EmitStoreThroughLValue(RValue Src, LValue Dst, bool isInit=false); 1917545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall void EmitStoreThroughExtVectorComponentLValue(RValue Src, LValue Dst); 1918ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar 19190dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitStoreThroughLValue - Store Src into Dst with same constraints as 19200dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitStoreThroughLValue. 1921ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar /// 19220dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// \param Result [out] - If non-null, this will be set to a Value* for the 19230dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// bit-field contents after the store, appropriate for use as the result of 19240dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// an assignment to the bit-field. 1925545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall void EmitStoreThroughBitfieldLValue(RValue Src, LValue Dst, 1926ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar llvm::Value **Result=0); 19270dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 192883ce9d4a552987d34cbd500e983db8d770232379John McCall /// Emit an l-value for an assignment (simple or compound) of complex type. 192983ce9d4a552987d34cbd500e983db8d770232379John McCall LValue EmitComplexAssignmentLValue(const BinaryOperator *E); 19302a41637a995affa1563f4d82a8b026e326a2faa0John McCall LValue EmitComplexCompoundAssignmentLValue(const CompoundAssignOperator *E); 19310934e18b620ecaa6c7ec18ba5c4286b6122d6fb8Eli Friedman LValue EmitScalarCompooundAssignWithComplex(const CompoundAssignOperator *E, 19320934e18b620ecaa6c7ec18ba5c4286b6122d6fb8Eli Friedman llvm::Value *&Result); 193383ce9d4a552987d34cbd500e983db8d770232379John McCall 1934fc8f0e14ad142ed811e90fbd9a30e419e301c717Chris Lattner // Note: only available for agg return types 193580e62c29fe21cd06c93eba6e72b7e32dca06fcf9Daniel Dunbar LValue EmitBinaryOperatorLValue(const BinaryOperator *E); 19362a41637a995affa1563f4d82a8b026e326a2faa0John McCall LValue EmitCompoundAssignmentLValue(const CompoundAssignOperator *E); 19375b5c9ef865607e179413462dcd71bcebb5b7daaeDaniel Dunbar // Note: only available for agg return types 193822c940ee588a420cd2e6c8f68be2ac3cc80061ffChristopher Lamb LValue EmitCallExprLValue(const CallExpr *E); 19395b5c9ef865607e179413462dcd71bcebb5b7daaeDaniel Dunbar // Note: only available for agg return types 19405b5c9ef865607e179413462dcd71bcebb5b7daaeDaniel Dunbar LValue EmitVAArgExprLValue(const VAArgExpr *E); 19415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitDeclRefLValue(const DeclRefExpr *E); 19425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitStringLiteralLValue(const StringLiteral *E); 1943eaf2bb89eb2aad3b80673de30febe52df43c10ecChris Lattner LValue EmitObjCEncodeExprLValue(const ObjCEncodeExpr *E); 1944d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner LValue EmitPredefinedLValue(const PredefinedExpr *E); 19455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitUnaryOpLValue(const UnaryOperator *E); 1946a0a628f839cf50844cc0f226bd9cb72485f98f91Richard Smith LValue EmitArraySubscriptExpr(const ArraySubscriptExpr *E, 1947a0a628f839cf50844cc0f226bd9cb72485f98f91Richard Smith bool Accessed = false); 1948213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman LValue EmitExtVectorElementExpr(const ExtVectorElementExpr *E); 1949b84a06e68ffd71da22e3c75b6e4bbdba37816413Devang Patel LValue EmitMemberExpr(const MemberExpr *E); 1950820bca41c3899374775d2a1dfc2ef2e22aaf1c7bFariborz Jahanian LValue EmitObjCIsaExpr(const ObjCIsaExpr *E); 195106e863f2902b8ba55b056308875c19f7ba3dab25Eli Friedman LValue EmitCompoundLiteralLValue(const CompoundLiteralExpr *E); 195213ec9100ca6bc03b5ce8832e4a0fcb724d47bcb1Richard Smith LValue EmitInitListLValue(const InitListExpr *E); 195356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall LValue EmitConditionalOperatorLValue(const AbstractConditionalOperator *E); 195475dfedaf702822c9e51a4f3c5d3ecf2d2ad99272Chris Lattner LValue EmitCastLValue(const CastExpr *E); 1955ed8abf18329df67b0abcbb3a10458bd8c1d2a595Douglas Gregor LValue EmitNullInitializationLValue(const CXXScalarValueInitExpr *E); 195603e80030515c800d1ab44125b9052dfffd1bd04cDouglas Gregor LValue EmitMaterializeTemporaryExpr(const MaterializeTemporaryExpr *E); 1957e996ffd240f20a1048179d7727a6ee3227261921John McCall LValue EmitOpaqueValueLValue(const OpaqueValueExpr *e); 19589cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 1959377ecc7996dce6803f7b7b6208cab5e197c9c5b8Eli Friedman RValue EmitRValueForField(LValue LV, const FieldDecl *FD); 1960eaf856db5d1a272dc7188937206ef4572836f82aAnton Korobeynikov 1961dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall class ConstantEmission { 1962dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall llvm::PointerIntPair<llvm::Constant*, 1, bool> ValueAndIsReference; 1963dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall ConstantEmission(llvm::Constant *C, bool isReference) 1964dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall : ValueAndIsReference(C, isReference) {} 1965dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall public: 1966dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall ConstantEmission() {} 1967dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall static ConstantEmission forReference(llvm::Constant *C) { 1968dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall return ConstantEmission(C, true); 1969dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall } 1970dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall static ConstantEmission forValue(llvm::Constant *C) { 1971dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall return ConstantEmission(C, false); 1972dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall } 1973dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall 19747247c88d1e41514a41085f83ebf03dd5220e054aDavid Blaikie LLVM_EXPLICIT operator bool() const { return ValueAndIsReference.getOpaqueValue() != 0; } 1975dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall 1976dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall bool isReference() const { return ValueAndIsReference.getInt(); } 1977dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall LValue getReferenceLValue(CodeGenFunction &CGF, Expr *refExpr) const { 1978dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall assert(isReference()); 1979dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall return CGF.MakeNaturalAlignAddrLValue(ValueAndIsReference.getPointer(), 1980dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall refExpr->getType()); 1981dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall } 1982dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall 1983dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall llvm::Constant *getValue() const { 1984dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall assert(!isReference()); 1985dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall return ValueAndIsReference.getPointer(); 1986dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall } 1987dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall }; 1988dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall 1989f4b88a45902af1802a1cb42ba48b1c474474f228John McCall ConstantEmission tryEmitAsConstant(DeclRefExpr *refExpr); 1990dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall 19914b9c2d235fb9449e249d74f48ecfec601650de93John McCall RValue EmitPseudoObjectRValue(const PseudoObjectExpr *e, 19924b9c2d235fb9449e249d74f48ecfec601650de93John McCall AggValueSlot slot = AggValueSlot::ignored()); 19934b9c2d235fb9449e249d74f48ecfec601650de93John McCall LValue EmitPseudoObjectLValue(const PseudoObjectExpr *e); 19944b9c2d235fb9449e249d74f48ecfec601650de93John McCall 19952a03192a02dbf4fdff438d1e658356bde871aba4Daniel Dunbar llvm::Value *EmitIvarOffset(const ObjCInterfaceDecl *Interface, 199629e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar const ObjCIvarDecl *Ivar); 1997377ecc7996dce6803f7b7b6208cab5e197c9c5b8Eli Friedman LValue EmitLValueForField(LValue Base, const FieldDecl* Field); 1998f5ebf9bf1df10ac15ba32a4b24dfe171b7848c58John McCall LValue EmitLValueForLambdaField(const FieldDecl *Field); 19999cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 200006a2970e9480c6d02b367b2f970baff29b9f9721Anders Carlsson /// EmitLValueForFieldInitialization - Like EmitLValueForField, except that 200106a2970e9480c6d02b367b2f970baff29b9f9721Anders Carlsson /// if the Field is a reference, this will return the address of the reference 200206a2970e9480c6d02b367b2f970baff29b9f9721Anders Carlsson /// and not the address of the value stored in the reference. 2003377ecc7996dce6803f7b7b6208cab5e197c9c5b8Eli Friedman LValue EmitLValueForFieldInitialization(LValue Base, 2004377ecc7996dce6803f7b7b6208cab5e197c9c5b8Eli Friedman const FieldDecl* Field); 20059cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 200645012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian LValue EmitLValueForIvar(QualType ObjectTy, 200745012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian llvm::Value* Base, const ObjCIvarDecl *Ivar, 200829e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar unsigned CVRQualifiers); 2009fd64bb635dc221baa19f81d5d2a084f7eb269f7fFariborz Jahanian 2010b58d017f2b9eeed33f2ab3ede968b89cf5296bf2Anders Carlsson LValue EmitCXXConstructLValue(const CXXConstructExpr *E); 2011e61c9e80a108b5db7e5f0e702f0e455d737c6390Anders Carlsson LValue EmitCXXBindTemporaryLValue(const CXXBindTemporaryExpr *E); 201231a3702618ab49578542cffee20ba0c8859b9d1eEli Friedman LValue EmitLambdaLValue(const LambdaExpr *E); 2013c2e84ae9a6d25cea3e583c768e576b4c981ec028Mike Stump LValue EmitCXXTypeidLValue(const CXXTypeidExpr *E); 2014c5f804636e367ef744fd24cf88f7c956a5af0434Nico Weber LValue EmitCXXUuidofLValue(const CXXUuidofExpr *E); 20159cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 20160a04d77bde7e3a661c2b41b60630d125d09ed6efDaniel Dunbar LValue EmitObjCMessageExprLValue(const ObjCMessageExpr *E); 2017391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner LValue EmitObjCIvarRefLValue(const ObjCIvarRefExpr *E); 2018654599454c8e6cc83b1b9b3af43c49c2f66a26cbChris Lattner LValue EmitStmtExprLValue(const StmtExpr *E); 20198bfd31f9dad09cd52225d868bbd92a9bebe87775Fariborz Jahanian LValue EmitPointerToDataMemberBinaryExpr(const BinaryOperator *E); 202003b2960c14aede6ac82bdef32247094ebb72fa69Fariborz Jahanian LValue EmitObjCSelectorLValue(const ObjCSelectorExpr *E); 2021189d6ef40eff11b83b2cda941d5ed89a5cef09b2John McCall void EmitDeclRefExprDbgValue(const DeclRefExpr *E, llvm::Constant *Init); 202256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 20235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 2024883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner // Scalar Expression Emission 20255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 20265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 20270dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitCall - Generate a call of the given function, expecting the given 20280dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// result type, and using the given argument list which specifies both the 20290dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// LLVM arguments and the types they were derived from. 2030c0ef9f59937c3971c48b6fed37cf5bd8985c024bDaniel Dunbar /// 2031f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// \param TargetDecl - If given, the decl of the function in a direct call; 2032f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// used to set attributes on the call (noreturn, etc.). 203388b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar RValue EmitCall(const CGFunctionInfo &FnInfo, 203488b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar llvm::Value *Callee, 2035f3c47c9525153aea2de0ec4bd615b9cf2d81c103Anders Carlsson ReturnValueSlot ReturnValue, 2036c0ef9f59937c3971c48b6fed37cf5bd8985c024bDaniel Dunbar const CallArgList &Args, 2037dd5c98f709837e5dd3da08d44d1ce407975df2cfDavid Chisnall const Decl *TargetDecl = 0, 20384b02afcb45cd1a384de7d45f440a8be091dd500bDavid Chisnall llvm::Instruction **callOrInvoke = 0); 20391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 204031777a2540879051a3c643b90e02c3fd3d315243Anders Carlsson RValue EmitCall(QualType FnType, llvm::Value *Callee, 2041d2490a91341b57df7a7e54f8a707e7ecde2eeb4eAnders Carlsson ReturnValueSlot ReturnValue, 2042986477149db76e6d9f8d3c9859c9880c11b680aeAnders Carlsson CallExpr::const_arg_iterator ArgBeg, 2043986477149db76e6d9f8d3c9859c9880c11b680aeAnders Carlsson CallExpr::const_arg_iterator ArgEnd, 2044986477149db76e6d9f8d3c9859c9880c11b680aeAnders Carlsson const Decl *TargetDecl = 0); 20459cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer RValue EmitCallExpr(const CallExpr *E, 2046d2490a91341b57df7a7e54f8a707e7ecde2eeb4eAnders Carlsson ReturnValueSlot ReturnValue = ReturnValueSlot()); 20471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2048bd7370a78604e9a20d698bfe328c1e43f12a0613John McCall llvm::CallInst *EmitRuntimeCall(llvm::Value *callee, 2049bd7370a78604e9a20d698bfe328c1e43f12a0613John McCall const Twine &name = ""); 2050bd7370a78604e9a20d698bfe328c1e43f12a0613John McCall llvm::CallInst *EmitRuntimeCall(llvm::Value *callee, 2051bd7370a78604e9a20d698bfe328c1e43f12a0613John McCall ArrayRef<llvm::Value*> args, 2052bd7370a78604e9a20d698bfe328c1e43f12a0613John McCall const Twine &name = ""); 2053bd7370a78604e9a20d698bfe328c1e43f12a0613John McCall llvm::CallInst *EmitNounwindRuntimeCall(llvm::Value *callee, 2054bd7370a78604e9a20d698bfe328c1e43f12a0613John McCall const Twine &name = ""); 2055bd7370a78604e9a20d698bfe328c1e43f12a0613John McCall llvm::CallInst *EmitNounwindRuntimeCall(llvm::Value *callee, 2056bd7370a78604e9a20d698bfe328c1e43f12a0613John McCall ArrayRef<llvm::Value*> args, 2057bd7370a78604e9a20d698bfe328c1e43f12a0613John McCall const Twine &name = ""); 2058bd7370a78604e9a20d698bfe328c1e43f12a0613John McCall 2059f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::CallSite EmitCallOrInvoke(llvm::Value *Callee, 20602d3ba4f5a923a90c3fc290ddfba5e36c2d0a9b46Chris Lattner ArrayRef<llvm::Value *> Args, 20618cc488fefb2fb04bc8d5398da29f0182f97934cfChris Lattner const Twine &Name = ""); 20624c7d9f1507d0f102bd4133bba63348636facd469Jay Foad llvm::CallSite EmitCallOrInvoke(llvm::Value *Callee, 20638cc488fefb2fb04bc8d5398da29f0182f97934cfChris Lattner const Twine &Name = ""); 2064bd7370a78604e9a20d698bfe328c1e43f12a0613John McCall llvm::CallSite EmitRuntimeCallOrInvoke(llvm::Value *callee, 2065bd7370a78604e9a20d698bfe328c1e43f12a0613John McCall ArrayRef<llvm::Value*> args, 2066bd7370a78604e9a20d698bfe328c1e43f12a0613John McCall const Twine &name = ""); 2067bd7370a78604e9a20d698bfe328c1e43f12a0613John McCall llvm::CallSite EmitRuntimeCallOrInvoke(llvm::Value *callee, 2068bd7370a78604e9a20d698bfe328c1e43f12a0613John McCall const Twine &name = ""); 2069bd7370a78604e9a20d698bfe328c1e43f12a0613John McCall void EmitNoreturnRuntimeCallOrInvoke(llvm::Value *callee, 2070bd7370a78604e9a20d698bfe328c1e43f12a0613John McCall ArrayRef<llvm::Value*> args); 2071f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 2072566abee1e9828a7700b51e4d17ea08234fde3bb4Anders Carlsson llvm::Value *BuildVirtualCall(const CXXMethodDecl *MD, llvm::Value *This, 20732acc6e3feda5e4f7d9009bdcf8b1cd777fecfe2dChris Lattner llvm::Type *Ty); 20749cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer llvm::Value *BuildVirtualCall(const CXXDestructorDecl *DD, CXXDtorType Type, 20752acc6e3feda5e4f7d9009bdcf8b1cd777fecfe2dChris Lattner llvm::Value *This, llvm::Type *Ty); 20762726267f094a0c1f5ac5b501ec5a9898c58876bfFariborz Jahanian llvm::Value *BuildAppleKextVirtualCall(const CXXMethodDecl *MD, 20772726267f094a0c1f5ac5b501ec5a9898c58876bfFariborz Jahanian NestedNameSpecifier *Qual, 20782acc6e3feda5e4f7d9009bdcf8b1cd777fecfe2dChris Lattner llvm::Type *Ty); 2079ccd5259d33cbbdd6f5fbf7ccab4cb4a2702309eaFariborz Jahanian 2080ccd5259d33cbbdd6f5fbf7ccab4cb4a2702309eaFariborz Jahanian llvm::Value *BuildAppleKextVirtualDestructorCall(const CXXDestructorDecl *DD, 2081ccd5259d33cbbdd6f5fbf7ccab4cb4a2702309eaFariborz Jahanian CXXDtorType Type, 2082771c678c04f5f685b4f188ec6c2fd88ad0f7457fFariborz Jahanian const CXXRecordDecl *RD); 2083566abee1e9828a7700b51e4d17ea08234fde3bb4Anders Carlsson 2084b9de2c55b2a33776e2bee8ee57df7599b374c8a5Anders Carlsson RValue EmitCXXMemberCall(const CXXMethodDecl *MD, 20854def70d3040e73707c738f7c366737a986135edfRichard Smith SourceLocation CallLoc, 2086b9de2c55b2a33776e2bee8ee57df7599b374c8a5Anders Carlsson llvm::Value *Callee, 2087a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson ReturnValueSlot ReturnValue, 2088b9de2c55b2a33776e2bee8ee57df7599b374c8a5Anders Carlsson llvm::Value *This, 208959660c21178b6af518bd4b564e032d5c9cc218cbTimur Iskhodzhanov llvm::Value *ImplicitParam, 209059660c21178b6af518bd4b564e032d5c9cc218cbTimur Iskhodzhanov QualType ImplicitParamTy, 2091b9de2c55b2a33776e2bee8ee57df7599b374c8a5Anders Carlsson CallExpr::const_arg_iterator ArgBeg, 2092b9de2c55b2a33776e2bee8ee57df7599b374c8a5Anders Carlsson CallExpr::const_arg_iterator ArgEnd); 2093a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson RValue EmitCXXMemberCallExpr(const CXXMemberCallExpr *E, 2094a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson ReturnValueSlot ReturnValue); 2095a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson RValue EmitCXXMemberPointerCallExpr(const CXXMemberCallExpr *E, 2096a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson ReturnValueSlot ReturnValue); 20975549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek 2098a2447e0d1e28669cd637204a871f15b1215277fdAnders Carlsson llvm::Value *EmitCXXOperatorMemberCallee(const CXXOperatorCallExpr *E, 2099a2447e0d1e28669cd637204a871f15b1215277fdAnders Carlsson const CXXMethodDecl *MD, 2100a2447e0d1e28669cd637204a871f15b1215277fdAnders Carlsson llvm::Value *This); 21010f294632f36459174199b77699e339715244b5abAnders Carlsson RValue EmitCXXOperatorMemberCallExpr(const CXXOperatorCallExpr *E, 2102a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson const CXXMethodDecl *MD, 2103a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson ReturnValueSlot ReturnValue); 21041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21056c0aa5ff6e6253db0f993053599e2a52b5b93b2dPeter Collingbourne RValue EmitCUDAKernelCallExpr(const CUDAKernelCallExpr *E, 21066c0aa5ff6e6253db0f993053599e2a52b5b93b2dPeter Collingbourne ReturnValueSlot ReturnValue); 21076c0aa5ff6e6253db0f993053599e2a52b5b93b2dPeter Collingbourne 21089cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 21091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump RValue EmitBuiltinExpr(const FunctionDecl *FD, 2110ef2abfee3ea16ec74942dc09e9e425f46aeb2582Daniel Dunbar unsigned BuiltinID, const CallExpr *E); 21115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2112a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson RValue EmitBlockCallExpr(const CallExpr *E, ReturnValueSlot ReturnValue); 211309429b962811f2c0a7a81a1b0a89f96f5878b20cMike Stump 21140dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitTargetBuiltinExpr - Emit the given builtin call. Returns 0 if the call 21150dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// is unhandled by the current target. 2116f02e9ddf5efc75917af712b3c7f909581205f0a5Daniel Dunbar llvm::Value *EmitTargetBuiltinExpr(unsigned BuiltinID, const CallExpr *E); 2117f02e9ddf5efc75917af712b3c7f909581205f0a5Daniel Dunbar 2118ff920eec4d449bee560d8d99636ad0eb50cd9d8dTim Northover llvm::Value *EmitAArch64BuiltinExpr(unsigned BuiltinID, const CallExpr *E); 21192752c0137d95aa2f4ee1cdff4b564bac842e041bChris Lattner llvm::Value *EmitARMBuiltinExpr(unsigned BuiltinID, const CallExpr *E); 21209cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer llvm::Value *EmitNeonCall(llvm::Function *F, 2121686775deca8b8685eb90801495880e3abdd844c2Chris Lattner SmallVectorImpl<llvm::Value*> &O, 2122db3d4d036037f379f12643e067b229862d61e932Bob Wilson const char *name, 212361eecf5aea018ea65c9ab0bccacd2996b15c632dNate Begeman unsigned shift = 0, bool rightshift = false); 2124cf55652cf668c1402eee0b12edd2e5a1bc34d7a1Bob Wilson llvm::Value *EmitNeonSplat(llvm::Value *V, llvm::Constant *Idx); 21252acc6e3feda5e4f7d9009bdcf8b1cd777fecfe2dChris Lattner llvm::Value *EmitNeonShiftVector(llvm::Value *V, llvm::Type *Ty, 212661eecf5aea018ea65c9ab0bccacd2996b15c632dNate Begeman bool negateForRightShift); 21279cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 2128795b10062c2eaffae9e04241fb1a73cdbcb24a37Bill Wendling llvm::Value *BuildVector(ArrayRef<llvm::Value*> Ops); 2129564f1de67d7ba43646b8740db86d6269e3dfbe0bAnders Carlsson llvm::Value *EmitX86BuiltinExpr(unsigned BuiltinID, const CallExpr *E); 2130564f1de67d7ba43646b8740db86d6269e3dfbe0bAnders Carlsson llvm::Value *EmitPPCBuiltinExpr(unsigned BuiltinID, const CallExpr *E); 21310dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 2132ed7c618f849e2541b1d0288c43154937652c5b15Daniel Dunbar llvm::Value *EmitObjCProtocolExpr(const ObjCProtocolExpr *E); 21337f02f721d48772e4eee4fccd8af4f800be1bbc1eChris Lattner llvm::Value *EmitObjCStringLiteral(const ObjCStringLiteral *E); 2134eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard llvm::Value *EmitObjCBoxedExpr(const ObjCBoxedExpr *E); 2135ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek llvm::Value *EmitObjCArrayLiteral(const ObjCArrayLiteral *E); 2136ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek llvm::Value *EmitObjCDictionaryLiteral(const ObjCDictionaryLiteral *E); 2137ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek llvm::Value *EmitObjCCollectionLiteral(const Expr *E, 2138ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek const ObjCMethodDecl *MethodWithObjects); 21398fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner llvm::Value *EmitObjCSelectorExpr(const ObjCSelectorExpr *E); 2140ef072fd2f3347cfd857d6eb787b245b950771430John McCall RValue EmitObjCMessageExpr(const ObjCMessageExpr *E, 2141ef072fd2f3347cfd857d6eb787b245b950771430John McCall ReturnValueSlot Return = ReturnValueSlot()); 21428fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner 2143f85e193739c953358c865005855253af4f68a497John McCall /// Retrieves the default cleanup kind for an ARC cleanup. 2144f85e193739c953358c865005855253af4f68a497John McCall /// Except under -fobjc-arc-eh, ARC cleanups are normal-only. 2145f85e193739c953358c865005855253af4f68a497John McCall CleanupKind getARCCleanupKind() { 2146f85e193739c953358c865005855253af4f68a497John McCall return CGM.getCodeGenOpts().ObjCAutoRefCountExceptions 2147f85e193739c953358c865005855253af4f68a497John McCall ? NormalAndEHCleanup : NormalCleanup; 2148f85e193739c953358c865005855253af4f68a497John McCall } 2149f85e193739c953358c865005855253af4f68a497John McCall 2150f85e193739c953358c865005855253af4f68a497John McCall // ARC primitives. 2151f85e193739c953358c865005855253af4f68a497John McCall void EmitARCInitWeak(llvm::Value *value, llvm::Value *addr); 2152f85e193739c953358c865005855253af4f68a497John McCall void EmitARCDestroyWeak(llvm::Value *addr); 2153f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCLoadWeak(llvm::Value *addr); 2154f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCLoadWeakRetained(llvm::Value *addr); 2155f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCStoreWeak(llvm::Value *value, llvm::Value *addr, 2156f85e193739c953358c865005855253af4f68a497John McCall bool ignored); 2157f85e193739c953358c865005855253af4f68a497John McCall void EmitARCCopyWeak(llvm::Value *dst, llvm::Value *src); 2158f85e193739c953358c865005855253af4f68a497John McCall void EmitARCMoveWeak(llvm::Value *dst, llvm::Value *src); 2159f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCRetainAutorelease(QualType type, llvm::Value *value); 2160f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCRetainAutoreleaseNonBlock(llvm::Value *value); 2161545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall llvm::Value *EmitARCStoreStrong(LValue lvalue, llvm::Value *value, 21625b07e8077a20b80fee90bd76c43c6150c676e4a8John McCall bool resultIgnored); 2163f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCStoreStrongCall(llvm::Value *addr, llvm::Value *value, 21645b07e8077a20b80fee90bd76c43c6150c676e4a8John McCall bool resultIgnored); 2165f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCRetain(QualType type, llvm::Value *value); 2166f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCRetainNonBlock(llvm::Value *value); 2167348f16fc7c71f0d9b651cb79fd1012843073493fJohn McCall llvm::Value *EmitARCRetainBlock(llvm::Value *value, bool mandatory); 21685b07e8077a20b80fee90bd76c43c6150c676e4a8John McCall void EmitARCDestroyStrong(llvm::Value *addr, ARCPreciseLifetime_t precise); 21695b07e8077a20b80fee90bd76c43c6150c676e4a8John McCall void EmitARCRelease(llvm::Value *value, ARCPreciseLifetime_t precise); 2170f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCAutorelease(llvm::Value *value); 2171f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCAutoreleaseReturnValue(llvm::Value *value); 2172f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCRetainAutoreleaseReturnValue(llvm::Value *value); 2173f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCRetainAutoreleasedReturnValue(llvm::Value *value); 2174f85e193739c953358c865005855253af4f68a497John McCall 2175f85e193739c953358c865005855253af4f68a497John McCall std::pair<LValue,llvm::Value*> 2176f85e193739c953358c865005855253af4f68a497John McCall EmitARCStoreAutoreleasing(const BinaryOperator *e); 2177f85e193739c953358c865005855253af4f68a497John McCall std::pair<LValue,llvm::Value*> 2178f85e193739c953358c865005855253af4f68a497John McCall EmitARCStoreStrong(const BinaryOperator *e, bool ignored); 2179f85e193739c953358c865005855253af4f68a497John McCall 21802b014d6c0c6b8ac94b416ac37dfc7931f20777a7John McCall llvm::Value *EmitObjCThrowOperand(const Expr *expr); 21812b014d6c0c6b8ac94b416ac37dfc7931f20777a7John McCall 2182f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitObjCProduceObject(QualType T, llvm::Value *Ptr); 2183f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitObjCConsumeObject(QualType T, llvm::Value *Ptr); 2184f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitObjCExtendObjectLifetime(QualType T, llvm::Value *Ptr); 2185f85e193739c953358c865005855253af4f68a497John McCall 2186348f16fc7c71f0d9b651cb79fd1012843073493fJohn McCall llvm::Value *EmitARCExtendBlockObject(const Expr *expr); 2187f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCRetainScalarExpr(const Expr *expr); 2188f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCRetainAutoreleaseScalarExpr(const Expr *expr); 2189f85e193739c953358c865005855253af4f68a497John McCall 2190b6a6079449a5275c283982e19b0c38e165833bb2John McCall void EmitARCIntrinsicUse(llvm::ArrayRef<llvm::Value*> values); 2191b6a6079449a5275c283982e19b0c38e165833bb2John McCall 2192bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall static Destroyer destroyARCStrongImprecise; 2193bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall static Destroyer destroyARCStrongPrecise; 2194bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall static Destroyer destroyARCWeak; 2195bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall 2196f85e193739c953358c865005855253af4f68a497John McCall void EmitObjCAutoreleasePoolPop(llvm::Value *Ptr); 2197f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitObjCAutoreleasePoolPush(); 2198f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitObjCMRRAutoreleasePoolPush(); 2199f85e193739c953358c865005855253af4f68a497John McCall void EmitObjCAutoreleasePoolCleanup(llvm::Value *Ptr); 2200f85e193739c953358c865005855253af4f68a497John McCall void EmitObjCMRRAutoreleasePoolPop(llvm::Value *Ptr); 2201f85e193739c953358c865005855253af4f68a497John McCall 22024029ca7ae9d3ffd7738fe2ed8782bebc30f36fd6Anders Carlsson /// EmitReferenceBindingToExpr - Emits a reference binding to the passed in 22034029ca7ae9d3ffd7738fe2ed8782bebc30f36fd6Anders Carlsson /// expression. Will emit a temporary variable if E is not an LValue. 22049cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer RValue EmitReferenceBindingToExpr(const Expr* E, 220532f36baa6c8d491c374af622b4e3ac28d597453cAnders Carlsson const NamedDecl *InitializedDecl); 22063aba09376c5f49c4c8d176109ea4835bc2c528eeAnders Carlsson 2207883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner //===--------------------------------------------------------------------===// 2208bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattner // Expression Emission 2209883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner //===--------------------------------------------------------------------===// 2210bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattner 2211bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattner // Expressions are broken into three classes: scalar, complex, aggregate. 22120dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 22130dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitScalarExpr - Emit the computation of the specified expression of LLVM 22140dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// scalar type, returning the result. 221514c5cbf59cffee52275230922283a247de407712Anders Carlsson llvm::Value *EmitScalarExpr(const Expr *E , bool IgnoreResultAssign = false); 22160dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 22173707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner /// EmitScalarConversion - Emit a conversion from the specified type to the 22183707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner /// specified destination type, both of which are LLVM scalar types. 22193707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner llvm::Value *EmitScalarConversion(llvm::Value *Src, QualType SrcTy, 22203707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner QualType DstTy); 22210dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 22224f1a7b380809b4ca19ad2daff61bc11cd1e979d8Chris Lattner /// EmitComplexToScalarConversion - Emit a conversion from the specified 22230dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// complex type to the specified destination type, where the destination type 22240dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// is an LLVM scalar type. 22254f1a7b380809b4ca19ad2daff61bc11cd1e979d8Chris Lattner llvm::Value *EmitComplexToScalarConversion(ComplexPairTy Src, QualType SrcTy, 22264f1a7b380809b4ca19ad2daff61bc11cd1e979d8Chris Lattner QualType DstTy); 22270dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 22280dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 2229558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// EmitAggExpr - Emit the computation of the specified expression 2230558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// of aggregate type. The result is computed into the given slot, 2231558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// which may be null to indicate that the value is not needed. 2232e0c1168ec7910a1a7ed08df4d4f0c58c2fa2ecd1John McCall void EmitAggExpr(const Expr *E, AggValueSlot AS); 22330dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 223418aba0dd518e486d8b50523e7dafb4b5657135d2Daniel Dunbar /// EmitAggExprToLValue - Emit the computation of the specified expression of 223518aba0dd518e486d8b50523e7dafb4b5657135d2Daniel Dunbar /// aggregate type into a temporary LValue. 223618aba0dd518e486d8b50523e7dafb4b5657135d2Daniel Dunbar LValue EmitAggExprToLValue(const Expr *E); 223718aba0dd518e486d8b50523e7dafb4b5657135d2Daniel Dunbar 2238082b02e8403d3ee9d2ded969fbe0e5d472f04cd8Fariborz Jahanian /// EmitGCMemmoveCollectable - Emit special API for structs with object 2239082b02e8403d3ee9d2ded969fbe0e5d472f04cd8Fariborz Jahanian /// pointers. 2240082b02e8403d3ee9d2ded969fbe0e5d472f04cd8Fariborz Jahanian void EmitGCMemmoveCollectable(llvm::Value *DestPtr, llvm::Value *SrcPtr, 224108c321380fff07d476a19daab6d29522c046cd49Fariborz Jahanian QualType Ty); 2242082b02e8403d3ee9d2ded969fbe0e5d472f04cd8Fariborz Jahanian 22430c24c808e4dce43e88abf2d5f98546b901bd4315John McCall /// EmitExtendGCLifetime - Given a pointer to an Objective-C object, 22440c24c808e4dce43e88abf2d5f98546b901bd4315John McCall /// make sure it survives garbage collection until this point. 22450c24c808e4dce43e88abf2d5f98546b901bd4315John McCall void EmitExtendGCLifetime(llvm::Value *object); 22460c24c808e4dce43e88abf2d5f98546b901bd4315John McCall 2247b6ef18a2b06d6760459e1756a61f79ff496cee19Chris Lattner /// EmitComplexExpr - Emit the computation of the specified expression of 224823b1cdb0b5e089468bb8475b8ec9287af67b4b59Chris Lattner /// complex type, returning the result. 2249b418d74c11498b7e1044103131e2e3be4d63512eJohn McCall ComplexPairTy EmitComplexExpr(const Expr *E, 2250b418d74c11498b7e1044103131e2e3be4d63512eJohn McCall bool IgnoreReal = false, 2251b418d74c11498b7e1044103131e2e3be4d63512eJohn McCall bool IgnoreImag = false); 22520dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 22539d232c884ea9872d6555df0fd7359699819bc1f1John McCall /// EmitComplexExprIntoLValue - Emit the given expression of complex 22549d232c884ea9872d6555df0fd7359699819bc1f1John McCall /// type and place its result into the specified l-value. 22559d232c884ea9872d6555df0fd7359699819bc1f1John McCall void EmitComplexExprIntoLValue(const Expr *E, LValue dest, bool isInit); 22569d232c884ea9872d6555df0fd7359699819bc1f1John McCall 22579d232c884ea9872d6555df0fd7359699819bc1f1John McCall /// EmitStoreOfComplex - Store a complex number into the specified l-value. 22589d232c884ea9872d6555df0fd7359699819bc1f1John McCall void EmitStoreOfComplex(ComplexPairTy V, LValue dest, bool isInit); 22597f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar 22609d232c884ea9872d6555df0fd7359699819bc1f1John McCall /// EmitLoadOfComplex - Load a complex number from the specified l-value. 22619d232c884ea9872d6555df0fd7359699819bc1f1John McCall ComplexPairTy EmitLoadOfComplex(LValue src); 22622621fd1d6d3c5eadcae246859f62738645df7540Chris Lattner 2263b6bbcc9995186799a60ce17d0c1acff31601653aJohn McCall /// CreateStaticVarDecl - Create a zero-initialized LLVM global for 2264b6bbcc9995186799a60ce17d0c1acff31601653aJohn McCall /// a static local variable. 22650f30a12ce7b3d4d86c9ca9072f587da77c8eef34Chandler Carruth llvm::GlobalVariable *CreateStaticVarDecl(const VarDecl &D, 22660f30a12ce7b3d4d86c9ca9072f587da77c8eef34Chandler Carruth const char *Separator, 22670f30a12ce7b3d4d86c9ca9072f587da77c8eef34Chandler Carruth llvm::GlobalValue::LinkageTypes Linkage); 22689cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 22690f30a12ce7b3d4d86c9ca9072f587da77c8eef34Chandler Carruth /// AddInitializerToStaticVarDecl - Add the initializer for 'D' to the 22700f30a12ce7b3d4d86c9ca9072f587da77c8eef34Chandler Carruth /// global variable that has already been created for it. If the initializer 22710f30a12ce7b3d4d86c9ca9072f587da77c8eef34Chandler Carruth /// has a different type than GV does, this may free GV and return a different 22720f30a12ce7b3d4d86c9ca9072f587da77c8eef34Chandler Carruth /// one. Otherwise it just returns GV. 22730f30a12ce7b3d4d86c9ca9072f587da77c8eef34Chandler Carruth llvm::GlobalVariable * 22740f30a12ce7b3d4d86c9ca9072f587da77c8eef34Chandler Carruth AddInitializerToStaticVarDecl(const VarDecl &D, 22750f30a12ce7b3d4d86c9ca9072f587da77c8eef34Chandler Carruth llvm::GlobalVariable *GV); 22769cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 22770096acf421c4609ce7f43e8b05f8c5ca866d4611Daniel Dunbar 22783b2e16b3d25f6b311dba2871e2a566c96238c3d2Anders Carlsson /// EmitCXXGlobalVarDeclInit - Create the initializer for a C++ 22793b2e16b3d25f6b311dba2871e2a566c96238c3d2Anders Carlsson /// variable with global storage. 22807ca4850a3e3530fa6c93b64b740446e32c97f992Richard Smith void EmitCXXGlobalVarDeclInit(const VarDecl &D, llvm::Constant *DeclPtr, 22817ca4850a3e3530fa6c93b64b740446e32c97f992Richard Smith bool PerformInit); 22823b2e16b3d25f6b311dba2871e2a566c96238c3d2Anders Carlsson 228320bb175cb8ae5844034828db094fb948c0e3454aJohn McCall /// Call atexit() with a function that passes the given argument to 228420bb175cb8ae5844034828db094fb948c0e3454aJohn McCall /// the given function. 228520bb175cb8ae5844034828db094fb948c0e3454aJohn McCall void registerGlobalDtorWithAtExit(llvm::Constant *fn, llvm::Constant *addr); 22861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22873030eb82593097502469a8b3fc26112c79c75605John McCall /// Emit code in this function to perform a guarded variable 22883030eb82593097502469a8b3fc26112c79c75605John McCall /// initialization. Guarded initializations are used when it's not 22893030eb82593097502469a8b3fc26112c79c75605John McCall /// possible to prove that an initialization will be done exactly 22903030eb82593097502469a8b3fc26112c79c75605John McCall /// once, e.g. with a static local variable or a static data member 22913030eb82593097502469a8b3fc26112c79c75605John McCall /// of a class template. 22920f30a12ce7b3d4d86c9ca9072f587da77c8eef34Chandler Carruth void EmitCXXGuardedInit(const VarDecl &D, llvm::GlobalVariable *DeclPtr, 22937ca4850a3e3530fa6c93b64b740446e32c97f992Richard Smith bool PerformInit); 22945cd91b513455fd7753e8815b54f0a49bbca6602dJohn McCall 2295efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar /// GenerateCXXGlobalInitFunc - Generates code for initializing global 2296efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar /// variables. 2297efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar void GenerateCXXGlobalInitFunc(llvm::Function *Fn, 2298c7b5f381ed41a238aa4c243f99170909f64a3414Benjamin Kramer ArrayRef<llvm::Constant *> Decls, 2299b80a16eadd0dacabfc1c32412e243ccb99dd664dRichard Smith llvm::GlobalVariable *Guard = 0); 2300efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar 23013f88f686e32949ffe02ccb551f482f9cf810358bJohn McCall /// GenerateCXXGlobalDtorsFunc - Generates code for destroying global 2302efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar /// variables. 23033f88f686e32949ffe02ccb551f482f9cf810358bJohn McCall void GenerateCXXGlobalDtorsFunc(llvm::Function *Fn, 23043f88f686e32949ffe02ccb551f482f9cf810358bJohn McCall const std::vector<std::pair<llvm::WeakVH, 23053f88f686e32949ffe02ccb551f482f9cf810358bJohn McCall llvm::Constant*> > &DtorsAndObjects); 2306efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar 2307d26bc76c98006609002d9930f8840490e88ac5b5John McCall void GenerateCXXGlobalVarDeclInitFunc(llvm::Function *Fn, 2308d26bc76c98006609002d9930f8840490e88ac5b5John McCall const VarDecl *D, 23097ca4850a3e3530fa6c93b64b740446e32c97f992Richard Smith llvm::GlobalVariable *Addr, 23107ca4850a3e3530fa6c93b64b740446e32c97f992Richard Smith bool PerformInit); 2311efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar 2312558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall void EmitCXXConstructExpr(const CXXConstructExpr *E, AggValueSlot Dest); 231334999876e215b22febc240b1a6dc054215d12f9cFariborz Jahanian 231434999876e215b22febc240b1a6dc054215d12f9cFariborz Jahanian void EmitSynthesizedCXXCopyCtor(llvm::Value *Dest, llvm::Value *Src, 2315830937bc1100fba7682f7c32c40512085870f50cFariborz Jahanian const Expr *Exp); 23161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23171a343ebbf413e8eae6b2737b2b2d79cbf5765571John McCall void enterFullExpression(const ExprWithCleanups *E) { 23181a343ebbf413e8eae6b2737b2b2d79cbf5765571John McCall if (E->getNumObjects() == 0) return; 23191a343ebbf413e8eae6b2737b2b2d79cbf5765571John McCall enterNonTrivialFullExpression(E); 23201a343ebbf413e8eae6b2737b2b2d79cbf5765571John McCall } 23211a343ebbf413e8eae6b2737b2b2d79cbf5765571John McCall void enterNonTrivialFullExpression(const ExprWithCleanups *E); 23221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23234c71b8cded575b0cfc133c5da4502ca613982094Richard Smith void EmitCXXThrowExpr(const CXXThrowExpr *E, bool KeepInsertionPoint = true); 23241eb2e59338c4b9c0429fc39ca98662adc9e7a3f2Douglas Gregor 23254c5d8afd100189b6cce4fd89bfb8aec5700acb50Eli Friedman void EmitLambdaExpr(const LambdaExpr *E, AggValueSlot Dest); 23264c5d8afd100189b6cce4fd89bfb8aec5700acb50Eli Friedman 2327276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman RValue EmitAtomicExpr(AtomicExpr *E, llvm::Value *Dest = 0); 2328276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 23290ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar //===--------------------------------------------------------------------===// 233077f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge // Annotations Emission 233177f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge //===--------------------------------------------------------------------===// 233277f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge 233377f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge /// Emit an annotation call (intrinsic or builtin). 233477f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge llvm::Value *EmitAnnotationCall(llvm::Value *AnnotationFn, 233577f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge llvm::Value *AnnotatedVal, 2336cfa88f893915ceb8ae4ce2f17c46c24a4d67502fDmitri Gribenko StringRef AnnotationStr, 233777f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge SourceLocation Location); 233877f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge 233977f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge /// Emit local annotations for the local variable V, declared by D. 234077f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge void EmitVarAnnotations(const VarDecl *D, llvm::Value *V); 234177f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge 234277f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge /// Emit field annotations for the given field & value. Returns the 234377f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge /// annotation result. 234477f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge llvm::Value *EmitFieldAnnotations(const FieldDecl *D, llvm::Value *V); 234577f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge 234677f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge //===--------------------------------------------------------------------===// 23470ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar // Internal Helpers 23480ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar //===--------------------------------------------------------------------===// 23490dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 23500946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner /// ContainsLabel - Return true if the statement contains a label in it. If 23510946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner /// this statement is not executed normally, it not containing a label means 23520946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner /// that we can just remove the code. 23530946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner static bool ContainsLabel(const Stmt *S, bool IgnoreCaseStmts = false); 23540dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 2355ef425a69006afaa87751ee41ccf8ff405d9ede70Chris Lattner /// containsBreak - Return true if the statement contains a break out of it. 2356ef425a69006afaa87751ee41ccf8ff405d9ede70Chris Lattner /// If the statement (recursively) contains a switch or loop with a break 2357ef425a69006afaa87751ee41ccf8ff405d9ede70Chris Lattner /// inside of it, this is fine. 2358ef425a69006afaa87751ee41ccf8ff405d9ede70Chris Lattner static bool containsBreak(const Stmt *S); 2359ef425a69006afaa87751ee41ccf8ff405d9ede70Chris Lattner 23604bc0455d826e9634b7a68c0d06146edd633c9453Daniel Dunbar /// ConstantFoldsToSimpleInteger - If the specified expression does not fold 2361c2c90011a688c04a4e980282f08c267e081c4b00Chris Lattner /// to a constant, or if it does but contains a label, return false. If it 2362c2c90011a688c04a4e980282f08c267e081c4b00Chris Lattner /// constant folds return true and set the boolean result in Result. 2363c2c90011a688c04a4e980282f08c267e081c4b00Chris Lattner bool ConstantFoldsToSimpleInteger(const Expr *Cond, bool &Result); 23640dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 2365ef425a69006afaa87751ee41ccf8ff405d9ede70Chris Lattner /// ConstantFoldsToSimpleInteger - If the specified expression does not fold 2366ef425a69006afaa87751ee41ccf8ff405d9ede70Chris Lattner /// to a constant, or if it does but contains a label, return false. If it 2367ef425a69006afaa87751ee41ccf8ff405d9ede70Chris Lattner /// constant folds return true and set the folded value. 2368e1ecdc168175719d74e112bcacd4aae5e12d4631Richard Trieu bool ConstantFoldsToSimpleInteger(const Expr *Cond, llvm::APSInt &Result); 2369ef425a69006afaa87751ee41ccf8ff405d9ede70Chris Lattner 237031a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// EmitBranchOnBoolExpr - Emit a branch on a boolean condition (e.g. for an 237131a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// if statement) to the specified blocks. Based on the condition, this might 237231a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// try to simplify the codegen of the conditional based on the branch. 23739bc47e29dce8f095be7a6d07dbb02a5a7a112949Chris Lattner void EmitBranchOnBoolExpr(const Expr *Cond, llvm::BasicBlock *TrueBlock, 23744bc0455d826e9634b7a68c0d06146edd633c9453Daniel Dunbar llvm::BasicBlock *FalseBlock); 2375be07f60131bc6f8d6696f4644df1ef667a1730d5Mike Stump 23764def70d3040e73707c738f7c366737a986135edfRichard Smith /// \brief Emit a description of a type in a format suitable for passing to 23774def70d3040e73707c738f7c366737a986135edfRichard Smith /// a runtime sanitizer handler. 23784def70d3040e73707c738f7c366737a986135edfRichard Smith llvm::Constant *EmitCheckTypeDescriptor(QualType T); 23794def70d3040e73707c738f7c366737a986135edfRichard Smith 23804def70d3040e73707c738f7c366737a986135edfRichard Smith /// \brief Convert a value into a format suitable for passing to a runtime 23814def70d3040e73707c738f7c366737a986135edfRichard Smith /// sanitizer handler. 23824def70d3040e73707c738f7c366737a986135edfRichard Smith llvm::Value *EmitCheckValue(llvm::Value *V); 23834def70d3040e73707c738f7c366737a986135edfRichard Smith 23844def70d3040e73707c738f7c366737a986135edfRichard Smith /// \brief Emit a description of a source location in a format suitable for 23854def70d3040e73707c738f7c366737a986135edfRichard Smith /// passing to a runtime sanitizer handler. 23864def70d3040e73707c738f7c366737a986135edfRichard Smith llvm::Constant *EmitCheckSourceLocation(SourceLocation Loc); 23874def70d3040e73707c738f7c366737a986135edfRichard Smith 2388ad95481b2769ad61f23afc5e2c31f11c66090657Will Dietz /// \brief Specify under what conditions this check can be recovered 2389ad95481b2769ad61f23afc5e2c31f11c66090657Will Dietz enum CheckRecoverableKind { 2390ad95481b2769ad61f23afc5e2c31f11c66090657Will Dietz /// Always terminate program execution if this check fails 2391ad95481b2769ad61f23afc5e2c31f11c66090657Will Dietz CRK_Unrecoverable, 2392ad95481b2769ad61f23afc5e2c31f11c66090657Will Dietz /// Check supports recovering, allows user to specify which 2393ad95481b2769ad61f23afc5e2c31f11c66090657Will Dietz CRK_Recoverable, 2394ad95481b2769ad61f23afc5e2c31f11c66090657Will Dietz /// Runtime conditionally aborts, always need to support recovery. 2395ad95481b2769ad61f23afc5e2c31f11c66090657Will Dietz CRK_AlwaysRecoverable 2396ad95481b2769ad61f23afc5e2c31f11c66090657Will Dietz }; 2397ad95481b2769ad61f23afc5e2c31f11c66090657Will Dietz 2398cc305617e952f8c3a06b63d9225d0dd7769341b7Richard Smith /// \brief Create a basic block that will call a handler function in a 2399cc305617e952f8c3a06b63d9225d0dd7769341b7Richard Smith /// sanitizer runtime with the provided arguments, and create a conditional 2400cc305617e952f8c3a06b63d9225d0dd7769341b7Richard Smith /// branch to it. 24014def70d3040e73707c738f7c366737a986135edfRichard Smith void EmitCheck(llvm::Value *Checked, StringRef CheckName, 2402cfa88f893915ceb8ae4ce2f17c46c24a4d67502fDmitri Gribenko ArrayRef<llvm::Constant *> StaticArgs, 2403cfa88f893915ceb8ae4ce2f17c46c24a4d67502fDmitri Gribenko ArrayRef<llvm::Value *> DynamicArgs, 2404ad95481b2769ad61f23afc5e2c31f11c66090657Will Dietz CheckRecoverableKind Recoverable); 24059cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 2406cc305617e952f8c3a06b63d9225d0dd7769341b7Richard Smith /// \brief Create a basic block that will call the trap intrinsic, and emit a 2407cc305617e952f8c3a06b63d9225d0dd7769341b7Richard Smith /// conditional branch to it, for the -ftrapv checks. 240878d85b1c5830a881c0a20a1b3fea99ee73149590Chad Rosier void EmitTrapCheck(llvm::Value *Checked); 2409cc305617e952f8c3a06b63d9225d0dd7769341b7Richard Smith 241021c9ad9d29d08a287292c670e7c52bc522c7f8bbAnders Carlsson /// EmitCallArg - Emit a single call argument. 2411413ebdb1af6fb0d81845b61254daf02ba0449afdJohn McCall void EmitCallArg(CallArgList &args, const Expr *E, QualType ArgType); 241221c9ad9d29d08a287292c670e7c52bc522c7f8bbAnders Carlsson 24132736071ea3a46f90e65c93418961611d96c10ab9John McCall /// EmitDelegateCallArg - We are performing a delegate call; that 24142736071ea3a46f90e65c93418961611d96c10ab9John McCall /// is, the current function is delegating to another one. Produce 24152736071ea3a46f90e65c93418961611d96c10ab9John McCall /// a r-value suitable for passing the given parameter. 2416413ebdb1af6fb0d81845b61254daf02ba0449afdJohn McCall void EmitDelegateCallArg(CallArgList &args, const VarDecl *param); 24172736071ea3a46f90e65c93418961611d96c10ab9John McCall 2418c5096cbf7a42e0f9012945b00d9037a5b5a88d72Peter Collingbourne /// SetFPAccuracy - Set the minimum required accuracy of the given floating 2419c5096cbf7a42e0f9012945b00d9037a5b5a88d72Peter Collingbourne /// point operation, expressed as the maximum relative error in ulp. 24208250016fb9491fcfde7fce05230d66e267944484Duncan Sands void SetFPAccuracy(llvm::Value *Val, float Accuracy); 2421c5096cbf7a42e0f9012945b00d9037a5b5a88d72Peter Collingbourne 242231a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattnerprivate: 2423c3f8955d7da1019dbe16b0bdf3e49d2e08d988e9Rafael Espindola llvm::MDNode *getRangeForLoadFromType(QualType Ty); 242429e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar void EmitReturnOfRValue(RValue RV, QualType Ty); 242529e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar 24265627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// ExpandTypeFromArgs - Reconstruct a structure of type \arg Ty 24275627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// from function arguments into \arg Dst. See ABIArgInfo::Expand. 24285627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// 24295627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// \param AI - The first function argument of the expansion. 24305627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// \return The argument following the last expanded function 24315627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// argument. 24320dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump llvm::Function::arg_iterator 24335627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar ExpandTypeFromArgs(QualType Ty, LValue Dst, 24345627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar llvm::Function::arg_iterator AI); 24355627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar 24360dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// ExpandTypeToArgs - Expand an RValue \arg Src, with the LLVM type for \arg 24370dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// Ty, into individual arguments on the provided vector \arg Args. See 24380dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// ABIArgInfo::Expand. 24390dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump void ExpandTypeToArgs(QualType Ty, RValue Src, 2440686775deca8b8685eb90801495880e3abdd844c2Chris Lattner SmallVector<llvm::Value*, 16> &Args, 2441811bf3669f4d82c57fe3cd3c49050fdbc95d0affChris Lattner llvm::FunctionType *IRFuncTy); 2442c8c7b187adcd989e01a9fba1ebead6c2abd770c9Anders Carlsson 244342b60551eff3a424e191b293bfd606559dc96bffChad Rosier llvm::Value* EmitAsmInput(const TargetInfo::ConstraintInfo &Info, 2444c8c7b187adcd989e01a9fba1ebead6c2abd770c9Anders Carlsson const Expr *InputExpr, std::string &ConstraintStr); 24450dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 244642b60551eff3a424e191b293bfd606559dc96bffChad Rosier llvm::Value* EmitAsmInputLValue(const TargetInfo::ConstraintInfo &Info, 24476d7cfd7ef82e42ff30ee1dafd2883fd94e9f8294Eli Friedman LValue InputValue, QualType InputType, 24486d7cfd7ef82e42ff30ee1dafd2883fd94e9f8294Eli Friedman std::string &ConstraintStr); 24496d7cfd7ef82e42ff30ee1dafd2883fd94e9f8294Eli Friedman 24500139bb96494b4c4ba0824617d5d2495dc7e44c76Anders Carlsson /// EmitCallArgs - Emit call arguments for a function. 24511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// The CallArgTypeInfo parameter is used for iterating over the known 2452af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson /// argument types of the function being called. 2453af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson template<typename T> 2454af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson void EmitCallArgs(CallArgList& Args, const T* CallArgTypeInfo, 24550139bb96494b4c4ba0824617d5d2495dc7e44c76Anders Carlsson CallExpr::const_arg_iterator ArgBeg, 2456af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson CallExpr::const_arg_iterator ArgEnd) { 2457af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson CallExpr::const_arg_iterator Arg = ArgBeg; 2458af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson 2459af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson // First, use the argument types that the type info knows about 2460af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson if (CallArgTypeInfo) { 2461af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson for (typename T::arg_type_iterator I = CallArgTypeInfo->arg_type_begin(), 2462af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson E = CallArgTypeInfo->arg_type_end(); I != E; ++I, ++Arg) { 246344b0a3e858af7b19f489619e52cd58970611cd15Eli Friedman assert(Arg != ArgEnd && "Running over edge of argument list!"); 2464af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson QualType ArgType = *I; 2465745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian#ifndef NDEBUG 2466745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian QualType ActualArgType = Arg->getType(); 2467745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian if (ArgType->isPointerType() && ActualArgType->isPointerType()) { 24689cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer QualType ActualBaseType = 2469745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian ActualArgType->getAs<PointerType>()->getPointeeType(); 24709cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer QualType ArgBaseType = 2471745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian ArgType->getAs<PointerType>()->getPointeeType(); 2472745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian if (ArgBaseType->isVariableArrayType()) { 2473745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian if (const VariableArrayType *VAT = 2474745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian getContext().getAsVariableArrayType(ActualBaseType)) { 2475745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian if (!VAT->getSizeExpr()) 2476745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian ActualArgType = ArgType; 2477745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian } 2478745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian } 2479745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian } 2480af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson assert(getContext().getCanonicalType(ArgType.getNonReferenceType()). 24811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getTypePtr() == 2482745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian getContext().getCanonicalType(ActualArgType).getTypePtr() && 2483af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson "type mismatch in call argument!"); 2484745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian#endif 2485413ebdb1af6fb0d81845b61254daf02ba0449afdJohn McCall EmitCallArg(Args, *Arg, ArgType); 2486af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson } 24871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Either we've emitted all the call args, or we have a call to a 2489af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson // variadic function. 24901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert((Arg == ArgEnd || CallArgTypeInfo->isVariadic()) && 2491af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson "Extra arguments in non-variadic function!"); 24921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2493af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson } 24941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2495af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson // If we still have any arguments, emit them using the type of the argument. 2496413ebdb1af6fb0d81845b61254daf02ba0449afdJohn McCall for (; Arg != ArgEnd; ++Arg) 2497413ebdb1af6fb0d81845b61254daf02ba0449afdJohn McCall EmitCallArg(Args, *Arg, Arg->getType()); 2498af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson } 2499492c4f998d848673d3d6c9e6416115df4036a71dJohn McCall 2500492c4f998d848673d3d6c9e6416115df4036a71dJohn McCall const TargetCodeGenInfo &getTargetHooks() const { 2501492c4f998d848673d3d6c9e6416115df4036a71dJohn McCall return CGM.getTargetCodeGenInfo(); 2502492c4f998d848673d3d6c9e6416115df4036a71dJohn McCall } 2503744016dde06fcffd50931e94a98c850f8b12cd87John McCall 2504744016dde06fcffd50931e94a98c850f8b12cd87John McCall void EmitDeclMetadata(); 2505f0c11f7e6848f023ced6a5b51399ba787c7d4d0bJohn McCall 2506f0c11f7e6848f023ced6a5b51399ba787c7d4d0bJohn McCall CodeGenModule::ByrefHelpers * 25072acc6e3feda5e4f7d9009bdcf8b1cd777fecfe2dChris Lattner buildByrefHelpers(llvm::StructType &byrefType, 2508f0c11f7e6848f023ced6a5b51399ba787c7d4d0bJohn McCall const AutoVarEmission &emission); 2509b49bd27b334a6c4e3bf9d810a7d5b022578f1194Dan Gohman 2510b49bd27b334a6c4e3bf9d810a7d5b022578f1194Dan Gohman void AddObjCARCExceptionMetadata(llvm::Instruction *Inst); 2511f4c3db175101cbf94dad59419c3ed7aed51bf606Jay Foad 2512ea93e40785ffeadfac66b948c95f9490ec26207aEli Friedman /// GetPointeeAlignment - Given an expression with a pointer type, emit the 2513ea93e40785ffeadfac66b948c95f9490ec26207aEli Friedman /// value and compute our best estimate of the alignment of the pointee. 2514ea93e40785ffeadfac66b948c95f9490ec26207aEli Friedman std::pair<llvm::Value*, unsigned> EmitPointerWithAlignment(const Expr *Addr); 25155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 25161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2517150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall/// Helper class with most of the code for saving a value for a 2518150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall/// conditional expression cleanup. 2519804b807ea918184d6de63bd745e1ff75a9bfc679John McCallstruct DominatingLLVMValue { 2520150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall typedef llvm::PointerIntPair<llvm::Value*, 1, bool> saved_type; 2521150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 2522150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// Answer whether the given value needs extra work to be saved. 2523150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall static bool needsSaving(llvm::Value *value) { 2524150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall // If it's not an instruction, we don't need to save. 2525150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall if (!isa<llvm::Instruction>(value)) return false; 2526150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 2527150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall // If it's an instruction in the entry block, we don't need to save. 2528150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall llvm::BasicBlock *block = cast<llvm::Instruction>(value)->getParent(); 2529150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall return (block != &block->getParent()->getEntryBlock()); 2530150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 2531150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 2532150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// Try to save the given value. 2533150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall static saved_type save(CodeGenFunction &CGF, llvm::Value *value) { 2534150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall if (!needsSaving(value)) return saved_type(value, false); 2535150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 2536150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall // Otherwise we need an alloca. 2537150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall llvm::Value *alloca = 2538150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall CGF.CreateTempAlloca(value->getType(), "cond-cleanup.save"); 2539150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall CGF.Builder.CreateStore(value, alloca); 2540150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 2541150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall return saved_type(alloca, true); 2542150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 2543150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 2544150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall static llvm::Value *restore(CodeGenFunction &CGF, saved_type value) { 2545150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall if (!value.getInt()) return value.getPointer(); 2546150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall return CGF.Builder.CreateLoad(value.getPointer()); 2547150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 2548150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall}; 2549150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 2550804b807ea918184d6de63bd745e1ff75a9bfc679John McCall/// A partial specialization of DominatingValue for llvm::Values that 2551804b807ea918184d6de63bd745e1ff75a9bfc679John McCall/// might be llvm::Instructions. 2552804b807ea918184d6de63bd745e1ff75a9bfc679John McCalltemplate <class T> struct DominatingPointer<T,true> : DominatingLLVMValue { 2553804b807ea918184d6de63bd745e1ff75a9bfc679John McCall typedef T *type; 2554804b807ea918184d6de63bd745e1ff75a9bfc679John McCall static type restore(CodeGenFunction &CGF, saved_type value) { 2555804b807ea918184d6de63bd745e1ff75a9bfc679John McCall return static_cast<T*>(DominatingLLVMValue::restore(CGF, value)); 2556804b807ea918184d6de63bd745e1ff75a9bfc679John McCall } 2557804b807ea918184d6de63bd745e1ff75a9bfc679John McCall}; 2558804b807ea918184d6de63bd745e1ff75a9bfc679John McCall 2559804b807ea918184d6de63bd745e1ff75a9bfc679John McCall/// A specialization of DominatingValue for RValue. 2560804b807ea918184d6de63bd745e1ff75a9bfc679John McCalltemplate <> struct DominatingValue<RValue> { 2561804b807ea918184d6de63bd745e1ff75a9bfc679John McCall typedef RValue type; 2562804b807ea918184d6de63bd745e1ff75a9bfc679John McCall class saved_type { 2563804b807ea918184d6de63bd745e1ff75a9bfc679John McCall enum Kind { ScalarLiteral, ScalarAddress, AggregateLiteral, 2564804b807ea918184d6de63bd745e1ff75a9bfc679John McCall AggregateAddress, ComplexAddress }; 2565804b807ea918184d6de63bd745e1ff75a9bfc679John McCall 2566804b807ea918184d6de63bd745e1ff75a9bfc679John McCall llvm::Value *Value; 2567804b807ea918184d6de63bd745e1ff75a9bfc679John McCall Kind K; 2568804b807ea918184d6de63bd745e1ff75a9bfc679John McCall saved_type(llvm::Value *v, Kind k) : Value(v), K(k) {} 2569804b807ea918184d6de63bd745e1ff75a9bfc679John McCall 2570804b807ea918184d6de63bd745e1ff75a9bfc679John McCall public: 2571804b807ea918184d6de63bd745e1ff75a9bfc679John McCall static bool needsSaving(RValue value); 2572804b807ea918184d6de63bd745e1ff75a9bfc679John McCall static saved_type save(CodeGenFunction &CGF, RValue value); 2573804b807ea918184d6de63bd745e1ff75a9bfc679John McCall RValue restore(CodeGenFunction &CGF); 2574804b807ea918184d6de63bd745e1ff75a9bfc679John McCall 2575804b807ea918184d6de63bd745e1ff75a9bfc679John McCall // implementations in CGExprCXX.cpp 2576804b807ea918184d6de63bd745e1ff75a9bfc679John McCall }; 2577804b807ea918184d6de63bd745e1ff75a9bfc679John McCall 2578804b807ea918184d6de63bd745e1ff75a9bfc679John McCall static bool needsSaving(type value) { 2579804b807ea918184d6de63bd745e1ff75a9bfc679John McCall return saved_type::needsSaving(value); 2580804b807ea918184d6de63bd745e1ff75a9bfc679John McCall } 2581804b807ea918184d6de63bd745e1ff75a9bfc679John McCall static saved_type save(CodeGenFunction &CGF, type value) { 2582804b807ea918184d6de63bd745e1ff75a9bfc679John McCall return saved_type::save(CGF, value); 2583804b807ea918184d6de63bd745e1ff75a9bfc679John McCall } 2584150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall static type restore(CodeGenFunction &CGF, saved_type value) { 2585804b807ea918184d6de63bd745e1ff75a9bfc679John McCall return value.restore(CGF); 2586150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 2587150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall}; 2588150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 25895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace CodeGen 25905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace clang 25914e1524babb095e70de1da882573eb6fbee98a857Fariborz Jahanian 25925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#endif 2593