CodeGenFunction.h revision 59a7000a79118e4c140885ccbb2ac6a686a73092
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 17391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner#include "clang/AST/Type.h" 18e3a09e6ad09f8d1387ecaa008aaf85527909da0aArgyrios Kyrtzidis#include "clang/AST/ExprCXX.h" 195549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek#include "clang/AST/ExprObjC.h" 20199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck#include "clang/AST/CharUnits.h" 21481769b5dc102b0256b35581e787909ad5edfab5Chris Lattner#include "clang/Basic/TargetInfo.h" 22481769b5dc102b0256b35581e787909ad5edfab5Chris Lattner#include "llvm/ADT/DenseMap.h" 23481769b5dc102b0256b35581e787909ad5edfab5Chris Lattner#include "llvm/ADT/SmallVector.h" 24481769b5dc102b0256b35581e787909ad5edfab5Chris Lattner#include "llvm/Support/ValueHandle.h" 2569243825cb5c91ec7207256aa57ae327cfaf8cb2Owen Anderson#include "CodeGenModule.h" 2696bd13ae1ab89f5a04b3ad3ec8ec1864cbba3482Mike Stump#include "CGBlocks.h" 2745d196b8387dcefc4df26cda114fa34c6528e928Daniel Dunbar#include "CGBuilder.h" 280dbe227feccf6a8dbadfff8ca3f80416b7bf2f28Daniel Dunbar#include "CGCall.h" 29b14095aa98c6fedd3625920c4ce834bcaf24d9f7Anders Carlsson#include "CGCXX.h" 308f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar#include "CGValue.h" 318f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar 325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace llvm { 33c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class BasicBlock; 34f21efe9088a0b3eda1209d1706529f6cb2073092Benjamin Kramer class LLVMContext; 35dd5c98f709837e5dd3da08d44d1ce407975df2cfDavid Chisnall class MDNode; 365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class Module; 37898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar class SwitchInst; 38259e9ccf882d11491ad149aec5e6d7a061c9f938Daniel Dunbar class Twine; 39ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar class Value; 40f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall class CallSite; 415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace clang { 445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class ASTContext; 457267c1693abe7875b0c57268be05005ae013c6c9Anders Carlsson class CXXDestructorDecl; 466815e941998659a55c20c147861b0f437928c3d8Anders Carlsson class CXXTryStmt; 475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class Decl; 48c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class EnumConstantDecl; 495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class FunctionDecl; 5072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor class FunctionProtoType; 51c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class LabelStmt; 52679a502d462ef819e6175b58e255ca3f3391e7cfFariborz Jahanian class ObjCContainerDecl; 5329e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar class ObjCInterfaceDecl; 5429e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar class ObjCIvarDecl; 55391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner class ObjCMethodDecl; 56fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian class ObjCImplementationDecl; 57af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar class ObjCPropertyImplDecl; 585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class TargetInfo; 59492c4f998d848673d3d6c9e6416115df4036a71dJohn McCall class TargetCodeGenInfo; 60c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class VarDecl; 6116f0049415ec596504891259e2a83e19871c0d52Chris Lattner class ObjCForCollectionStmt; 6216f0049415ec596504891259e2a83e19871c0d52Chris Lattner class ObjCAtTryStmt; 6316f0049415ec596504891259e2a83e19871c0d52Chris Lattner class ObjCAtThrowStmt; 6416f0049415ec596504891259e2a83e19871c0d52Chris Lattner class ObjCAtSynchronizedStmt; 655549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek 665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace CodeGen { 67b84a06e68ffd71da22e3c75b6e4bbdba37816413Devang Patel class CodeGenTypes; 68e896d98548b02223c7740d807a0aa6e20fba7079Anders Carlsson class CGDebugInfo; 69bb36d331f439f49859efcfb4435c61762fbba6f9Daniel Dunbar class CGFunctionInfo; 700dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump class CGRecordLayout; 71ee5042903d53fa7b0fbc1902d0ea07d57c7775b1John McCall class CGBlockInfo; 720dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 73f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall/// A branch fixup. These are required when emitting a goto to a 74f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall/// label which hasn't been emitted yet. The goto is optimistically 75f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall/// emitted as a branch to the basic block for the label, and (if it 76f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall/// occurs in a scope with non-trivial cleanups) a fixup is added to 77f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall/// the innermost cleanup. When a (normal) cleanup is popped, any 78f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall/// unresolved fixups in that scope are threaded through the cleanup. 79f1549f66a8216a78112286e3978cea2c29d6334cJohn McCallstruct BranchFixup { 80f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// The origin of the branch. Any switch-index stores required by 81f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// cleanup threading are added before this instruction. 82f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::Instruction *Origin; 83f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 84f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// The destination of the branch. 85f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// 86f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// This can be set to null to indicate that this fixup was 87f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// successfully resolved. 88f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *Destination; 89f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 90f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// The last branch of the fixup. It is an invariant that 91f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// LatestBranch->getSuccessor(LatestBranchIndex) == Destination. 92f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// 93f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// The branch is always either a BranchInst or a SwitchInst. 94f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::TerminatorInst *LatestBranch; 95f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall unsigned LatestBranchIndex; 96f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall}; 97f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 98f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall/// A stack of scopes which respond to exceptions, including cleanups 99f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall/// and catch blocks. 100f1549f66a8216a78112286e3978cea2c29d6334cJohn McCallclass EHScopeStack { 101f1549f66a8216a78112286e3978cea2c29d6334cJohn McCallpublic: 102f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// A saved depth on the scope stack. This is necessary because 103f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// pushing scopes onto the stack invalidates iterators. 104f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall class stable_iterator { 105f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall friend class EHScopeStack; 106f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 107f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Offset from StartOfData to EndOfBuffer. 108f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall ptrdiff_t Size; 109f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 110f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall stable_iterator(ptrdiff_t Size) : Size(Size) {} 111f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 112f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall public: 113f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall static stable_iterator invalid() { return stable_iterator(-1); } 114f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall stable_iterator() : Size(-1) {} 115f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 116f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall bool isValid() const { return Size >= 0; } 117f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 118f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall friend bool operator==(stable_iterator A, stable_iterator B) { 119f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return A.Size == B.Size; 120f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 121f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall friend bool operator!=(stable_iterator A, stable_iterator B) { 122f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return A.Size != B.Size; 123f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 124f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall }; 125f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 126f1549f66a8216a78112286e3978cea2c29d6334cJohn McCallprivate: 127f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall // The implementation for this class is in CGException.h and 128f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall // CGException.cpp; the definition is here because it's used as a 129f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall // member of CodeGenFunction. 130f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 131f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// The start of the scope-stack buffer, i.e. the allocated pointer 132f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// for the buffer. All of these pointers are either simultaneously 133f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// null or simultaneously valid. 134f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall char *StartOfBuffer; 135f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 136f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// The end of the buffer. 137f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall char *EndOfBuffer; 138f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 139f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// The first valid entry in the buffer. 140f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall char *StartOfData; 141f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 142f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// The innermost normal cleanup on the stack. 143f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall stable_iterator InnermostNormalCleanup; 144f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 145f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// The innermost EH cleanup on the stack. 146f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall stable_iterator InnermostEHCleanup; 147f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 148f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// The number of catches on the stack. 149f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall unsigned CatchDepth; 150f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 151f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// The current set of branch fixups. A branch fixup is a jump to 152f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// an as-yet unemitted label, i.e. a label for which we don't yet 153f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// know the EH stack depth. Whenever we pop a cleanup, we have 154f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// to thread all the current branch fixups through it. 155f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// 156f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Fixups are recorded as the Use of the respective branch or 157f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// switch statement. The use points to the final destination. 158f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// When popping out of a cleanup, these uses are threaded through 159f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// the cleanup and adjusted to point to the new cleanup. 160f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// 161f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Note that branches are allowed to jump into protected scopes 162f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// in certain situations; e.g. the following code is legal: 163f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// struct A { ~A(); }; // trivial ctor, non-trivial dtor 164f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// goto foo; 165f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// A a; 166f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// foo: 167f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// bar(); 168f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::SmallVector<BranchFixup, 8> BranchFixups; 169f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 170f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall char *allocate(size_t Size); 171f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 172f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall void popNullFixups(); 173f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 174f1549f66a8216a78112286e3978cea2c29d6334cJohn McCallpublic: 175f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall EHScopeStack() : StartOfBuffer(0), EndOfBuffer(0), StartOfData(0), 176f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall InnermostNormalCleanup(stable_end()), 177f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall InnermostEHCleanup(stable_end()), 178f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall CatchDepth(0) {} 179f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall ~EHScopeStack() { delete[] StartOfBuffer; } 180f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 181f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Push a cleanup on the stack. 182f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall void pushCleanup(llvm::BasicBlock *NormalEntry, 183f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *NormalExit, 184f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *EHEntry, 185f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *EHExit); 186f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 187f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Pops a cleanup scope off the stack. This should only be called 188f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// by CodeGenFunction::PopCleanupBlock. 189f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall void popCleanup(); 190f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 191f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Push a set of catch handlers on the stack. The catch is 192f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// uninitialized and will need to have the given number of handlers 193f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// set on it. 194f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall class EHCatchScope *pushCatch(unsigned NumHandlers); 195f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 196f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Pops a catch scope off the stack. 197f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall void popCatch(); 198f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 199f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Push an exceptions filter on the stack. 200f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall class EHFilterScope *pushFilter(unsigned NumFilters); 201f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 202f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Pops an exceptions filter off the stack. 203f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall void popFilter(); 204f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 205f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Push a terminate handler on the stack. 206f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall void pushTerminate(); 207f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 208f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Pops a terminate handler off the stack. 209f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall void popTerminate(); 210f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 211f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Determines whether the exception-scopes stack is empty. 212f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall bool empty() const { return StartOfData == EndOfBuffer; } 213f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 214f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall bool requiresLandingPad() const { 215f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return (CatchDepth || hasEHCleanups()); 216f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 217f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 218f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Determines whether there are any normal cleanups on the stack. 219f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall bool hasNormalCleanups() const { 220f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return InnermostNormalCleanup != stable_end(); 221f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 222f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 223f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Returns the innermost normal cleanup on the stack, or 224f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// stable_end() if there are no normal cleanups. 225f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall stable_iterator getInnermostNormalCleanup() const { 226f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return InnermostNormalCleanup; 227f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 228f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 229f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Determines whether there are any EH cleanups on the stack. 230f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall bool hasEHCleanups() const { 231f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return InnermostEHCleanup != stable_end(); 232f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 233f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 234f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Returns the innermost EH cleanup on the stack, or stable_end() 235f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// if there are no EH cleanups. 236f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall stable_iterator getInnermostEHCleanup() const { 237f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return InnermostEHCleanup; 238f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 239f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 240f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// An unstable reference to a scope-stack depth. Invalidated by 241f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// pushes but not pops. 242f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall class iterator; 243f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 244f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Returns an iterator pointing to the innermost EH scope. 245f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall iterator begin() const; 246f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 247f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Returns an iterator pointing to the outermost EH scope. 248f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall iterator end() const; 249f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 250f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Create a stable reference to the top of the EH stack. The 251f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// returned reference is valid until that scope is popped off the 252f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// stack. 253f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall stable_iterator stable_begin() const { 254f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return stable_iterator(EndOfBuffer - StartOfData); 255f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 256f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 257f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Create a stable reference to the bottom of the EH stack. 258f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall static stable_iterator stable_end() { 259f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return stable_iterator(0); 260f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 261f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 262f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Translates an iterator into a stable_iterator. 263f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall stable_iterator stabilize(iterator it) const; 264f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 265f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Finds the nearest cleanup enclosing the given iterator. 266f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Returns stable_iterator::invalid() if there are no such cleanups. 267f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall stable_iterator getEnclosingEHCleanup(iterator it) const; 268f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 269f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Turn a stable reference to a scope depth into a unstable pointer 270f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// to the EH stack. 271f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall iterator find(stable_iterator save) const; 272f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 273f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Removes the cleanup pointed to by the given stable_iterator. 274f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall void removeCleanup(stable_iterator save); 275f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 276f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Add a branch fixup to the current cleanup scope. 277f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall BranchFixup &addBranchFixup() { 278f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall assert(hasNormalCleanups() && "adding fixup in scope without cleanups"); 279f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall BranchFixups.push_back(BranchFixup()); 280f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return BranchFixups.back(); 281f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 282f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 283f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall unsigned getNumBranchFixups() const { return BranchFixups.size(); } 284f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall BranchFixup &getBranchFixup(unsigned I) { 285f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall assert(I < getNumBranchFixups()); 286f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return BranchFixups[I]; 287f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 288f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 289f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Mark any branch fixups leading to the given block as resolved. 290f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall void resolveBranchFixups(llvm::BasicBlock *Dest); 291f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall}; 292f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 2935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// CodeGenFunction - This class organizes the per-function state that is used 2945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// while generating LLVM code. 2952a998148a6823c44d67da347c95eb2ea21f6b986Mike Stumpclass CodeGenFunction : public BlockFunction { 2968a219ceda2b5afd447e7199b9c53079bead31b89Anders Carlsson CodeGenFunction(const CodeGenFunction&); // DO NOT IMPLEMENT 2978a219ceda2b5afd447e7199b9c53079bead31b89Anders Carlsson void operator=(const CodeGenFunction&); // DO NOT IMPLEMENT 298bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattnerpublic: 299f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// A jump destination is a pair of a basic block and a cleanup 300f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// depth. They are used to implement direct jumps across cleanup 301f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// scopes, e.g. goto, break, continue, and return. 302f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall struct JumpDest { 303f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall JumpDest() : Block(0), ScopeDepth() {} 304f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall JumpDest(llvm::BasicBlock *Block, EHScopeStack::stable_iterator Depth) 305f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall : Block(Block), ScopeDepth(Depth) {} 306f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 307f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *Block; 308f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall EHScopeStack::stable_iterator ScopeDepth; 309f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall }; 310f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 3115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CodeGenModule &CGM; // Per-module state. 312444be7366d0a1e172c0290a1ea54c1cb16b5947cDaniel Dunbar const TargetInfo &Target; 3130dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 31458dee10ed2eee34035f62d1c2d32b3639e9182f8Chris Lattner typedef std::pair<llvm::Value *, llvm::Value *> ComplexPairTy; 31545d196b8387dcefc4df26cda114fa34c6528e928Daniel Dunbar CGBuilderTy Builder; 3160dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 317b5437d238752dc297e42410e98d38d5250fe0463Chris Lattner /// CurFuncDecl - Holds the Decl for the current function or ObjC method. 318b5437d238752dc297e42410e98d38d5250fe0463Chris Lattner /// This excludes BlockDecls. 3194111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner const Decl *CurFuncDecl; 320b5437d238752dc297e42410e98d38d5250fe0463Chris Lattner /// CurCodeDecl - This is the inner-most code context, which includes blocks. 321b5437d238752dc297e42410e98d38d5250fe0463Chris Lattner const Decl *CurCodeDecl; 32288b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar const CGFunctionInfo *CurFnInfo; 323391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner QualType FnRetTy; 3245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::Function *CurFn; 3255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3266a1e0eb557d47e85185e09bdf8721f53f4bf9c9cMike Stump /// CurGD - The GlobalDecl for the current function being compiled. 3276a1e0eb557d47e85185e09bdf8721f53f4bf9c9cMike Stump GlobalDecl CurGD; 3286a1e0eb557d47e85185e09bdf8721f53f4bf9c9cMike Stump 3295ca2084cf9b529563209429857f01fdae9dcdfa5Daniel Dunbar /// ReturnBlock - Unified return block. 330f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall JumpDest ReturnBlock; 331f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 3320dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// ReturnValue - The temporary alloca to hold the return value. This is null 3330dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// iff the function has no return value. 334b17daf9ab790ae71aacad2cc4aa11cd8d86c25d1Eli Friedman llvm::Value *ReturnValue; 3350dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 3365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// AllocaInsertPoint - This is an instruction in the entry block before which 3375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// we prefer to insert allocas. 338481769b5dc102b0256b35581e787909ad5edfab5Chris Lattner llvm::AssertingVH<llvm::Instruction> AllocaInsertPt; 3390ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar 34077b89b87c3b9220fea1bc80f6d6598d2003cc8a8Chris Lattner // intptr_t, i32, i64 34177b89b87c3b9220fea1bc80f6d6598d2003cc8a8Chris Lattner const llvm::IntegerType *IntPtrTy, *Int32Ty, *Int64Ty; 3427b66000bdfc2684351fb03208e672f23012ed569Hartmut Kaiser uint32_t LLVMPointerWidth; 34318ccc7776ad6288c5f630dc7967fb99d099c9cd9Daniel Dunbar 344d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump bool Exceptions; 3459c276ae0f24d4cee8f7954069d4b8eae45d0447dMike Stump bool CatchUndefined; 3463d91bbcdab155181556969cad6ec97014405acedDouglas Gregor 3473d91bbcdab155181556969cad6ec97014405acedDouglas Gregor /// \brief A mapping from NRVO variables to the flags used to indicate 3483d91bbcdab155181556969cad6ec97014405acedDouglas Gregor /// when the NRVO has been applied to this variable. 3493d91bbcdab155181556969cad6ec97014405acedDouglas Gregor llvm::DenseMap<const VarDecl *, llvm::Value *> NRVOFlags; 3500dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 351f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall EHScopeStack EHStack; 3520dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 353f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// The exception slot. All landing pads write the current 354f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// exception pointer into this alloca. 355f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::Value *ExceptionSlot; 3560dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 357f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Emits a landing pad for the current EH stack. 358f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *EmitLandingPad(); 3590dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 360f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *getInvokeDestImpl(); 36199533834ba8f3658559f334e68a518ebb6388ceaMike Stump 362f1549f66a8216a78112286e3978cea2c29d6334cJohn McCallpublic: 363f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// ObjCEHValueStack - Stack of Objective-C exception values, used for 364f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// rethrows. 365f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::SmallVector<llvm::Value*, 8> ObjCEHValueStack; 366bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson 367f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall // A struct holding information about a finally block's IR 368f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall // generation. For now, doesn't actually hold anything. 369f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall struct FinallyInfo { 370d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump }; 371d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump 372f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall FinallyInfo EnterFinallyBlock(const Stmt *Stmt, 373f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::Constant *BeginCatchFn, 374f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::Constant *EndCatchFn, 375f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::Constant *RethrowFn); 376f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall void ExitFinallyBlock(FinallyInfo &FinallyInfo); 377f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 378f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall enum CleanupKind { NormalAndEHCleanup, EHCleanup, NormalCleanup }; 379f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 380f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// PushDestructorCleanup - Push a cleanup to call the 381f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// complete-object destructor of an object of the given type at the 382f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// given address. Does nothing if T is not a C++ class type with a 383f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// non-trivial destructor. 384f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall void PushDestructorCleanup(QualType T, llvm::Value *Addr); 385f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 386f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// PopCleanupBlock - Will pop the cleanup entry on the stack and 387f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// process all branch fixups. 388f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall void PopCleanupBlock(); 389f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 390f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// CleanupBlock - RAII object that will create a cleanup block and 391f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// set the insert point to that block. When destructed, it sets the 392f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// insert point to the previous block and pushes a new cleanup 393f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// entry on the stack. 394f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall class CleanupBlock { 395f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall CodeGenFunction &CGF; 396f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall CGBuilderTy::InsertPoint SavedIP; 397f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *NormalCleanupEntryBB; 398f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *NormalCleanupExitBB; 399f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *EHCleanupEntryBB; 4007799621ad7d16f3c6a1aeda024312d63ecd77777Fariborz Jahanian 4010d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson public: 402f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall CleanupBlock(CodeGenFunction &CGF, CleanupKind Kind); 4030dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 404f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// If we're currently writing a normal cleanup, tie that off and 405f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// start writing an EH cleanup. 406f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall void beginEHCleanup(); 4077799621ad7d16f3c6a1aeda024312d63ecd77777Fariborz Jahanian 408f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall ~CleanupBlock(); 4090d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson }; 4100d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson 411f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// \brief Enters a new scope for capturing cleanups, all of which 412f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// will be executed once the scope is exited. 413f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall class RunCleanupsScope { 41401234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor CodeGenFunction& CGF; 415f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall EHScopeStack::stable_iterator CleanupStackDepth; 41601234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor bool OldDidCallStackSave; 4175656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor bool PerformCleanup; 41801234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor 419f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall RunCleanupsScope(const RunCleanupsScope &); // DO NOT IMPLEMENT 420f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall RunCleanupsScope &operator=(const RunCleanupsScope &); // DO NOT IMPLEMENT 42101234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor 42201234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor public: 42301234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor /// \brief Enter a new cleanup scope. 424f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall explicit RunCleanupsScope(CodeGenFunction &CGF) 4255656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor : CGF(CGF), PerformCleanup(true) 4265656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor { 427f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall CleanupStackDepth = CGF.EHStack.stable_begin(); 42801234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor OldDidCallStackSave = CGF.DidCallStackSave; 42901234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor } 43001234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor 43101234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor /// \brief Exit this cleanup scope, emitting any accumulated 43201234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor /// cleanups. 433f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall ~RunCleanupsScope() { 4345656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor if (PerformCleanup) { 4355656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor CGF.DidCallStackSave = OldDidCallStackSave; 436f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall CGF.PopCleanupBlocks(CleanupStackDepth); 4375656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor } 4385656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor } 4395656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor 4405656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor /// \brief Determine whether this scope requires any cleanups. 4415656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor bool requiresCleanups() const { 442f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return CGF.EHStack.stable_begin() != CleanupStackDepth; 4435656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor } 4445656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor 4455656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor /// \brief Force the emission of cleanups now, instead of waiting 4465656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor /// until this object is destroyed. 4475656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor void ForceCleanup() { 4485656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor assert(PerformCleanup && "Already forced cleanup"); 44901234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor CGF.DidCallStackSave = OldDidCallStackSave; 450f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall CGF.PopCleanupBlocks(CleanupStackDepth); 4515656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor PerformCleanup = false; 45201234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor } 45301234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor }; 45401234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor 45544ec82b4a1597802f5bf17721481b8c265bc8dc5Anders Carlsson 456f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// PopCleanupBlocks - Takes the old cleanup stack size and emits 457f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// the cleanup blocks that have been added. 458f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall void PopCleanupBlocks(EHScopeStack::stable_iterator OldCleanupStackSize); 45944ec82b4a1597802f5bf17721481b8c265bc8dc5Anders Carlsson 460f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// The given basic block lies in the current EH scope, but may be a 461f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// target of a potentially scope-crossing jump; get a stable handle 462f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// to which we can perform this jump later. 463f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall JumpDest getJumpDestInCurrentScope(llvm::BasicBlock *Target) const { 464f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return JumpDest(Target, EHStack.stable_begin()); 465f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 466c71c845fe77ee1f891d60232ec320912d88557eeAnders Carlsson 467f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// The given basic block lies in the current EH scope, but may be a 468f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// target of a potentially scope-crossing jump; get a stable handle 469f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// to which we can perform this jump later. 470f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall JumpDest getJumpDestInCurrentScope(const char *Name = 0) { 471f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return JumpDest(createBasicBlock(Name), EHStack.stable_begin()); 472f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 473f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 474f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// EmitBranchThroughCleanup - Emit a branch from the current insert 475f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// block through the normal cleanup handling code (if any) and then 476f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// on to \arg Dest. 477f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall void EmitBranchThroughCleanup(JumpDest Dest); 478f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 479f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// EmitBranchThroughEHCleanup - Emit a branch from the current 480f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// insert block through the EH cleanup handling code (if any) and 481f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// then on to \arg Dest. 482f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall void EmitBranchThroughEHCleanup(JumpDest Dest); 4830dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 48472119a887c4af39c90f10b6bdc158389071f42eaAnders Carlsson /// BeginConditionalBranch - Should be called before a conditional part of an 485a36bf8f74180e834c6bf2db867796fd5338495abAnders Carlsson /// expression is emitted. For example, before the RHS of the expression below 486a36bf8f74180e834c6bf2db867796fd5338495abAnders Carlsson /// is emitted: 4871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// 4881d8475067d5b62ed5a57ba93862e23f3096a8bddAnders Carlsson /// b && f(T()); 4891d8475067d5b62ed5a57ba93862e23f3096a8bddAnders Carlsson /// 490a36bf8f74180e834c6bf2db867796fd5338495abAnders Carlsson /// This is used to make sure that any temporaries created in the conditional 4911d8475067d5b62ed5a57ba93862e23f3096a8bddAnders Carlsson /// branch are only destroyed if the branch is taken. 49272119a887c4af39c90f10b6bdc158389071f42eaAnders Carlsson void BeginConditionalBranch() { 493a36bf8f74180e834c6bf2db867796fd5338495abAnders Carlsson ++ConditionalBranchLevel; 494a36bf8f74180e834c6bf2db867796fd5338495abAnders Carlsson } 4951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 49672119a887c4af39c90f10b6bdc158389071f42eaAnders Carlsson /// EndConditionalBranch - Should be called after a conditional part of an 497a36bf8f74180e834c6bf2db867796fd5338495abAnders Carlsson /// expression has been emitted. 49872119a887c4af39c90f10b6bdc158389071f42eaAnders Carlsson void EndConditionalBranch() { 49908e9e453f40aff95a59bd67db49b8f050765e1f0Anders Carlsson assert(ConditionalBranchLevel != 0 && 50008e9e453f40aff95a59bd67db49b8f050765e1f0Anders Carlsson "Conditional branch mismatch!"); 50108e9e453f40aff95a59bd67db49b8f050765e1f0Anders Carlsson 502a36bf8f74180e834c6bf2db867796fd5338495abAnders Carlsson --ConditionalBranchLevel; 503a36bf8f74180e834c6bf2db867796fd5338495abAnders Carlsson } 5041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5057f02f721d48772e4eee4fccd8af4f800be1bbc1eChris Lattnerprivate: 506d9becd1846e2c72bf6ad283faa1b048f33dd3afeChris Lattner CGDebugInfo *DebugInfo; 50709429b962811f2c0a7a81a1b0a89f96f5878b20cMike Stump 508f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// IndirectBranch - The first time an indirect goto is seen we create a block 509f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// with an indirect branch. Every time we see the address of a label taken, 510f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// we add the label to the indirect goto. Every subsequent indirect goto is 511f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// codegen'd as a jump to the IndirectBranch's basic block. 512d9becd1846e2c72bf6ad283faa1b048f33dd3afeChris Lattner llvm::IndirectBrInst *IndirectBranch; 5130ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar 5140dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// LocalDeclMap - This keeps track of the LLVM allocas or globals for local C 5150dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// decls. 5165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::DenseMap<const Decl*, llvm::Value*> LocalDeclMap; 5175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// LabelMap - This keeps track of the LLVM basic block for each C label. 519f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::DenseMap<const LabelStmt*, JumpDest> LabelMap; 5200dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 5210dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // BreakContinueStack - This keeps track of where break and continue 522e4b6d342c29d5cb9d311756100df1603810fa892Anders Carlsson // statements should jump to. 523da13870e99fe33934b2122f06528a5063f78ae4cChris Lattner struct BreakContinue { 524f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall BreakContinue(JumpDest Break, JumpDest Continue) 525f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall : BreakBlock(Break), ContinueBlock(Continue) {} 5260dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 527f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall JumpDest BreakBlock; 528f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall JumpDest ContinueBlock; 5290dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump }; 530da13870e99fe33934b2122f06528a5063f78ae4cChris Lattner llvm::SmallVector<BreakContinue, 8> BreakContinueStack; 53118ccc7776ad6288c5f630dc7967fb99d099c9cd9Daniel Dunbar 5320dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// SwitchInsn - This is nearest current switch instruction. It is null if if 5330dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// current context is not in a switch. 53451b09f2c528c8460b5465c676173324e44176d62Devang Patel llvm::SwitchInst *SwitchInsn; 53551b09f2c528c8460b5465c676173324e44176d62Devang Patel 5360dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// CaseRangeBlock - This block holds if condition check for last case 53780fd5f96e6805ac43aab99faabd5b4c8b19551b7Devang Patel /// statement range in current switch instruction. 538c049e4f406a7f7179eba98659044a32508e53289Devang Patel llvm::BasicBlock *CaseRangeBlock; 539c049e4f406a7f7179eba98659044a32508e53289Devang Patel 5409834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar /// InvokeDest - This is the nearest exception target for calls 5419834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar /// which can unwind, when exceptions are being used. 5429834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar llvm::BasicBlock *InvokeDest; 5439834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar 5440dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // VLASizeMap - This keeps track of the associated size for each VLA type. 545bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman // We track this by the size expression rather than the type itself because 546bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman // in certain situations, like a const qualifier applied to an VLA typedef, 547bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman // multiple VLA types can share the same size expression. 5480dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // FIXME: Maybe this could be a stack of maps that is pushed/popped as we 5490dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // enter/leave scopes. 550bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman llvm::DenseMap<const Expr*, llvm::Value*> VLASizeMap; 5510dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 5524cc1a4703363ff940b6273aeef9d96a87edeb04bAnders Carlsson /// DidCallStackSave - Whether llvm.stacksave has been called. Used to avoid 5534cc1a4703363ff940b6273aeef9d96a87edeb04bAnders Carlsson /// calling llvm.stacksave for multiple VLAs in the same scope. 5544cc1a4703363ff940b6273aeef9d96a87edeb04bAnders Carlsson bool DidCallStackSave; 55509429b962811f2c0a7a81a1b0a89f96f5878b20cMike Stump 556f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// A block containing a single 'unreachable' instruction. Created 557f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// lazily by getUnreachableBlock(). 558f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *UnreachableBlock; 5590dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 560f6c56e2323c3f973253805a2f35629f3253ebed4Anders Carlsson /// CXXThisDecl - When generating code for a C++ member function, 561f6c56e2323c3f973253805a2f35629f3253ebed4Anders Carlsson /// this will hold the implicit 'this' declaration. 5622b77ba8bc7a842829ad9193816dc1d7d5e9c5be6Anders Carlsson ImplicitParamDecl *CXXThisDecl; 5632504941793b549323f9d29c62507cf21d865fadeJohn McCall llvm::Value *CXXThisValue; 5641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 565f6c56e2323c3f973253805a2f35629f3253ebed4Anders Carlsson /// CXXVTTDecl - When generating code for a base object constructor or 566f6c56e2323c3f973253805a2f35629f3253ebed4Anders Carlsson /// base object destructor with virtual bases, this will hold the implicit 567f6c56e2323c3f973253805a2f35629f3253ebed4Anders Carlsson /// VTT parameter. 568f6c56e2323c3f973253805a2f35629f3253ebed4Anders Carlsson ImplicitParamDecl *CXXVTTDecl; 5692504941793b549323f9d29c62507cf21d865fadeJohn McCall llvm::Value *CXXVTTValue; 570f6c56e2323c3f973253805a2f35629f3253ebed4Anders Carlsson 571a36bf8f74180e834c6bf2db867796fd5338495abAnders Carlsson /// ConditionalBranchLevel - Contains the nesting level of the current 572a36bf8f74180e834c6bf2db867796fd5338495abAnders Carlsson /// conditional branch. This is used so that we know if a temporary should be 573a36bf8f74180e834c6bf2db867796fd5338495abAnders Carlsson /// destroyed conditionally. 574a36bf8f74180e834c6bf2db867796fd5338495abAnders Carlsson unsigned ConditionalBranchLevel; 5751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5767dfa4079f4b37507048b19bfc693d3b015d9dd11Anders Carlsson 5777dfa4079f4b37507048b19bfc693d3b015d9dd11Anders Carlsson /// ByrefValueInfoMap - For each __block variable, contains a pair of the LLVM 5787dfa4079f4b37507048b19bfc693d3b015d9dd11Anders Carlsson /// type as well as the field number that contains the actual data. 5797dfa4079f4b37507048b19bfc693d3b015d9dd11Anders Carlsson llvm::DenseMap<const ValueDecl *, std::pair<const llvm::Type *, 5807dfa4079f4b37507048b19bfc693d3b015d9dd11Anders Carlsson unsigned> > ByRefValueInfo; 5817dfa4079f4b37507048b19bfc693d3b015d9dd11Anders Carlsson 5827dfa4079f4b37507048b19bfc693d3b015d9dd11Anders Carlsson /// getByrefValueFieldNumber - Given a declaration, returns the LLVM field 5837dfa4079f4b37507048b19bfc693d3b015d9dd11Anders Carlsson /// number that holds the value. 5847dfa4079f4b37507048b19bfc693d3b015d9dd11Anders Carlsson unsigned getByRefValueLLVMField(const ValueDecl *VD) const; 585182f383db1782af752ecaf607fdff72a8542088bMike Stump 586f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *TerminateLandingPad; 587182f383db1782af752ecaf607fdff72a8542088bMike Stump llvm::BasicBlock *TerminateHandler; 58815037caa1542bb810ad54c653aeb80f61df7b00cMike Stump llvm::BasicBlock *TrapBB; 589940670512d7c3d93389bb38a426abcb7ef44271eEli Friedman 5905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 5915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CodeGenFunction(CodeGenModule &cgm); 5920dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 5935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ASTContext &getContext() const; 594e896d98548b02223c7740d807a0aa6e20fba7079Anders Carlsson CGDebugInfo *getDebugInfo() { return DebugInfo; } 5955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 596f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Returns a pointer to the function's exception object slot, which 597f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// is assigned in every landing pad. 598f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::Value *getExceptionSlot(); 599f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 600f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *getUnreachableBlock() { 601f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall if (!UnreachableBlock) { 602f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall UnreachableBlock = createBasicBlock("unreachable"); 603f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall new llvm::UnreachableInst(getLLVMContext(), UnreachableBlock); 604f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 605f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return UnreachableBlock; 606f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 607f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 608f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *getInvokeDest() { 609f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall if (!EHStack.requiresLandingPad()) return 0; 610f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return getInvokeDestImpl(); 611f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 6129834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar 613a1cf15f4680e5cf39e72e28c5ea854fcba792e84Owen Anderson llvm::LLVMContext &getLLVMContext() { return VMContext; } 61469243825cb5c91ec7207256aa57ae327cfaf8cb2Owen Anderson 6159834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar //===--------------------------------------------------------------------===// 6169834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar // Objective-C 6179834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar //===--------------------------------------------------------------------===// 6189834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar 619391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner void GenerateObjCMethod(const ObjCMethodDecl *OMD); 620af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 6210dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump void StartObjCMethod(const ObjCMethodDecl *MD, 622679a502d462ef819e6175b58e255ca3f3391e7cfFariborz Jahanian const ObjCContainerDecl *CD); 623af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 6240dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// GenerateObjCGetter - Synthesize an Objective-C property getter function. 625fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian void GenerateObjCGetter(ObjCImplementationDecl *IMP, 626fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian const ObjCPropertyImplDecl *PID); 627109dfc6ca6652f60c55ed0f2631aebf323d0200dFariborz Jahanian void GenerateObjCCtorDtorMethod(ObjCImplementationDecl *IMP, 628109dfc6ca6652f60c55ed0f2631aebf323d0200dFariborz Jahanian ObjCMethodDecl *MD, bool ctor); 629af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 6300dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// GenerateObjCSetter - Synthesize an Objective-C property setter function 6310dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// for the given property. 632fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian void GenerateObjCSetter(ObjCImplementationDecl *IMP, 633fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian const ObjCPropertyImplDecl *PID); 6340b2bd47151ee9205ad6c66d1ffb921918106088aFariborz Jahanian bool IndirectObjCSetterArg(const CGFunctionInfo &FI); 63515bd58842adaa4f8cca4e58047ed18e033858d9bFariborz Jahanian bool IvarTypeWithAggrGCObjects(QualType Ty); 636af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 6374e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump //===--------------------------------------------------------------------===// 6384e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump // Block Bits 6394e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump //===--------------------------------------------------------------------===// 6404e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump 6418a2b4b1c5b960710db95e9b296d9a600aee37c00Mike Stump llvm::Value *BuildBlockLiteralTmp(const BlockExpr *); 6422a7eb28397148079cbc8e54e8a3871ef01c4f4bcBlaine Garst llvm::Constant *BuildDescriptorBlockDecl(const BlockExpr *, 6432a7eb28397148079cbc8e54e8a3871ef01c4f4bcBlaine Garst bool BlockHasCopyDispose, 644199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck CharUnits Size, 6450892099dbc640720400a1d9decd2733a09d733e5Mike Stump const llvm::StructType *, 6460892099dbc640720400a1d9decd2733a09d733e5Mike Stump std::vector<HelperInfo> *); 6474e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump 648564360be450b319aeafc26698be9811837bfb826Fariborz Jahanian llvm::Function *GenerateBlockFunction(GlobalDecl GD, 649564360be450b319aeafc26698be9811837bfb826Fariborz Jahanian const BlockExpr *BExpr, 650ee5042903d53fa7b0fbc1902d0ea07d57c7775b1John McCall CGBlockInfo &Info, 6516cc88f78fd36d3511b89412b193494b3e423cbffMike Stump const Decl *OuterFuncDecl, 652ee5042903d53fa7b0fbc1902d0ea07d57c7775b1John McCall llvm::DenseMap<const Decl*, llvm::Value*> ldm); 6534e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump 6544e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump llvm::Value *LoadBlockStruct(); 6554e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump 656ea1471e0e967548c596a71469702f8846dbaf3c0John McCall void AllocateBlockCXXThisPointer(const CXXThisExpr *E); 657ea1471e0e967548c596a71469702f8846dbaf3c0John McCall void AllocateBlockDecl(const BlockDeclRefExpr *E); 658ee5042903d53fa7b0fbc1902d0ea07d57c7775b1John McCall llvm::Value *GetAddrOfBlockDecl(const BlockDeclRefExpr *E) { 659ee5042903d53fa7b0fbc1902d0ea07d57c7775b1John McCall return GetAddrOfBlockDecl(E->getDecl(), E->isByRef()); 660ee5042903d53fa7b0fbc1902d0ea07d57c7775b1John McCall } 661ee5042903d53fa7b0fbc1902d0ea07d57c7775b1John McCall llvm::Value *GetAddrOfBlockDecl(const ValueDecl *D, bool ByRef); 6629ad5513b0f9d3999705659fb1aeb0e6c53455f43Anders Carlsson const llvm::Type *BuildByRefType(const ValueDecl *D); 663dab514fc30242c7afd6c03956e46136c400fb0d3Mike Stump 6640ff8bafde95f6fa51ccea70738c1b99db870bddcAnders Carlsson void GenerateCode(GlobalDecl GD, llvm::Function *Fn); 6650ff8bafde95f6fa51ccea70738c1b99db870bddcAnders Carlsson void StartFunction(GlobalDecl GD, QualType RetTy, 6667c086516f3cc9fba2733b1919973206c6ba4b171Daniel Dunbar llvm::Function *Fn, 6672284ac9ec80299fcdefae9a2787cf85105a0f203Daniel Dunbar const FunctionArgList &Args, 6682284ac9ec80299fcdefae9a2787cf85105a0f203Daniel Dunbar SourceLocation StartLoc); 669a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 6709fc6a7774643a810c8501dae2323e863fefb623eJohn McCall void EmitConstructorBody(FunctionArgList &Args); 6719fc6a7774643a810c8501dae2323e863fefb623eJohn McCall void EmitDestructorBody(FunctionArgList &Args); 6729fc6a7774643a810c8501dae2323e863fefb623eJohn McCall void EmitFunctionBody(FunctionArgList &Args); 673a355e07454463b19829ac92ffd115a097faff0e0John McCall 6740dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitReturnBlock - Emit the unified return block, trying to avoid its 6750dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// emission when possible. 6761c1d6074f5a0296dd273362655b1b8f9057289e3Daniel Dunbar void EmitReturnBlock(); 6771c1d6074f5a0296dd273362655b1b8f9057289e3Daniel Dunbar 6780dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// FinishFunction - Complete IR generation of the current function. It is 6790dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// legal to call this function even if there is no current insertion point. 680af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar void FinishFunction(SourceLocation EndLoc=SourceLocation()); 68117b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar 682519c32880b99396034ecaedc0cd86db2e8485003Anders Carlsson /// GenerateThunk - Generate a thunk for the given method. 683519c32880b99396034ecaedc0cd86db2e8485003Anders Carlsson void GenerateThunk(llvm::Function *Fn, GlobalDecl GD, const ThunkInfo &Thunk); 684519c32880b99396034ecaedc0cd86db2e8485003Anders Carlsson 685fb8cc253420e93cee33d29df5a2bdae6aaf16e39Douglas Gregor void EmitCtorPrologue(const CXXConstructorDecl *CD, CXXCtorType Type, 686fb8cc253420e93cee33d29df5a2bdae6aaf16e39Douglas Gregor FunctionArgList &Args); 6871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 688d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson /// InitializeVTablePointer - Initialize the vtable pointer of the given 689d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson /// subobject. 690d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson /// 691b3b772ea15a4cd54879e244629aa685ead9548bbAnders Carlsson void InitializeVTablePointer(BaseSubobject Base, 692b3b772ea15a4cd54879e244629aa685ead9548bbAnders Carlsson const CXXRecordDecl *NearestVBase, 6934235840554aaed11efd479df9e622dc82ab77e6dAnders Carlsson uint64_t OffsetFromNearestVBase, 694d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson llvm::Constant *VTable, 695d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson const CXXRecordDecl *VTableClass); 696d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson 697d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson typedef llvm::SmallPtrSet<const CXXRecordDecl *, 4> VisitedVirtualBasesSetTy; 698b3b772ea15a4cd54879e244629aa685ead9548bbAnders Carlsson void InitializeVTablePointers(BaseSubobject Base, 699b3b772ea15a4cd54879e244629aa685ead9548bbAnders Carlsson const CXXRecordDecl *NearestVBase, 7004235840554aaed11efd479df9e622dc82ab77e6dAnders Carlsson uint64_t OffsetFromNearestVBase, 701603d6d12cc4cba1ef219a3d55c698c7c87f87adfAnders Carlsson bool BaseIsNonVirtualPrimaryBase, 702603d6d12cc4cba1ef219a3d55c698c7c87f87adfAnders Carlsson llvm::Constant *VTable, 703603d6d12cc4cba1ef219a3d55c698c7c87f87adfAnders Carlsson const CXXRecordDecl *VTableClass, 704603d6d12cc4cba1ef219a3d55c698c7c87f87adfAnders Carlsson VisitedVirtualBasesSetTy& VBases); 70577a259c6dbf582949af8a243b472c0c7faa373a6Eli Friedman 706603d6d12cc4cba1ef219a3d55c698c7c87f87adfAnders Carlsson void InitializeVTablePointers(const CXXRecordDecl *ClassDecl); 707d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson 708d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson 709426cc3828ce07a2cff15c9837f5958e6fc4b7739Fariborz Jahanian /// EmitDtorEpilogue - Emit all code that comes at the end of class's 710f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// destructor. This is to call destructors on members and base classes in 711f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// reverse order of their construction. 712de1d26b9c1d8823b173e4d77015ad88b4da70559Anders Carlsson void EmitDtorEpilogue(const CXXDestructorDecl *Dtor, 713de1d26b9c1d8823b173e4d77015ad88b4da70559Anders Carlsson CXXDtorType Type); 7141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7157255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner /// ShouldInstrumentFunction - Return true if the current function should be 7167255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner /// instrumented with __cyg_profile_func_* calls 7177255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner bool ShouldInstrumentFunction(); 7187255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner 7197255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner /// EmitFunctionInstrumentation - Emit LLVM code to call the specified 7207255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner /// instrumentation function with the current function and the call site, if 7217255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner /// function instrumentation is enabled. 7227255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner void EmitFunctionInstrumentation(const char *Fn); 7237255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner 7240dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitFunctionProlog - Emit the target specific LLVM code to load the 7250dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// arguments for the given function. This is also responsible for naming the 7260dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// LLVM function arguments. 72788b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar void EmitFunctionProlog(const CGFunctionInfo &FI, 72888b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar llvm::Function *Fn, 72917b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar const FunctionArgList &Args); 73017b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar 7310dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitFunctionEpilog - Emit the target specific LLVM code to return the 7320dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// given temporary. 73335b21b884e5c3447a52a74d7ffaba966b07ac81fChris Lattner void EmitFunctionEpilog(const CGFunctionInfo &FI); 73417b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar 735cce3d4f9812182ed4e551b7cf0fc86576be8d9c5Mike Stump /// EmitStartEHSpec - Emit the start of the exception spec. 736cce3d4f9812182ed4e551b7cf0fc86576be8d9c5Mike Stump void EmitStartEHSpec(const Decl *D); 737cce3d4f9812182ed4e551b7cf0fc86576be8d9c5Mike Stump 738cce3d4f9812182ed4e551b7cf0fc86576be8d9c5Mike Stump /// EmitEndEHSpec - Emit the end of the exception spec. 739cce3d4f9812182ed4e551b7cf0fc86576be8d9c5Mike Stump void EmitEndEHSpec(const Decl *D); 740cce3d4f9812182ed4e551b7cf0fc86576be8d9c5Mike Stump 741f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// getTerminateLandingPad - Return a landing pad that just calls terminate. 742f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *getTerminateLandingPad(); 743f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 744f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// getTerminateHandler - Return a handler (not a landing pad, just 745f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// a catch handler) that just calls terminate. This is used when 746f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// a terminate scope encloses a try. 7479b39c51ae3c547568ac42325f94b4197618f6b18Mike Stump llvm::BasicBlock *getTerminateHandler(); 7489b39c51ae3c547568ac42325f94b4197618f6b18Mike Stump 7498b1a343b6b360d63d5dc8a6beb841ce4414c1e00Daniel Dunbar const llvm::Type *ConvertTypeForMem(QualType T); 7505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const llvm::Type *ConvertType(QualType T); 751bff225ecf77fb891596ecb1b27196310d268365eJohn McCall const llvm::Type *ConvertType(const TypeDecl *T) { 752bff225ecf77fb891596ecb1b27196310d268365eJohn McCall return ConvertType(getContext().getTypeDeclType(T)); 753bff225ecf77fb891596ecb1b27196310d268365eJohn McCall } 754c8aa5f1f264fb230c38182adab944232bb160c2bChris Lattner 7550dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// LoadObjCSelf - Load the value of self. This function is only valid while 7560dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// generating code for an Objective-C method. 757c8aa5f1f264fb230c38182adab944232bb160c2bChris Lattner llvm::Value *LoadObjCSelf(); 7580dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 7590dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// TypeOfSelfObject - Return type of object that this self represents. 76045012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian QualType TypeOfSelfObject(); 7614111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner 7625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// hasAggregateLLVMType - Return true if the specified AST type will map into 7635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// an aggregate LLVM type or is void. 7645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool hasAggregateLLVMType(QualType T); 76555e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar 76655e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar /// createBasicBlock - Create an LLVM basic block. 7670dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump llvm::BasicBlock *createBasicBlock(const char *Name="", 76855e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar llvm::Function *Parent=0, 76955e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar llvm::BasicBlock *InsertBefore=0) { 77029ea6729155c759836be4b5453bee9ef8e1e97eeDaniel Dunbar#ifdef NDEBUG 7710032b2781b4deb131f8c9b7968f2030bf2489cddOwen Anderson return llvm::BasicBlock::Create(VMContext, "", Parent, InsertBefore); 77229ea6729155c759836be4b5453bee9ef8e1e97eeDaniel Dunbar#else 7730032b2781b4deb131f8c9b7968f2030bf2489cddOwen Anderson return llvm::BasicBlock::Create(VMContext, Name, Parent, InsertBefore); 77429ea6729155c759836be4b5453bee9ef8e1e97eeDaniel Dunbar#endif 77555e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar } 7760dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 7775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getBasicBlockForLabel - Return the LLVM basicblock that the specified 7785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// label maps to. 779f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall JumpDest getJumpDestForLabel(const LabelStmt *S); 7800dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 781f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// SimplifyForwardingBlocks - If the given basic block is only a branch to 782f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// another basic block, simplify it. This assumes that no other code could 783f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// potentially reference the basic block. 784aa5bd87f1fd5f9ca47924248817c89325759b30eDaniel Dunbar void SimplifyForwardingBlocks(llvm::BasicBlock *BB); 785aa5bd87f1fd5f9ca47924248817c89325759b30eDaniel Dunbar 7860dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitBlock - Emit the given block \arg BB and set it as the insert point, 7870dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// adding a fall-through branch from the current insert block if 7880dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// necessary. It is legal to call this function even if there is no current 7890dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// insertion point. 790a0c21a8faa79e88ac432d116eca58f7a7217195dDaniel Dunbar /// 7910dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// IsFinished - If true, indicates that the caller has finished emitting 7920dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// branches to the given block and does not expect to emit code into it. This 7930dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// means the block can be ignored if it is unreachable. 794a0c21a8faa79e88ac432d116eca58f7a7217195dDaniel Dunbar void EmitBlock(llvm::BasicBlock *BB, bool IsFinished=false); 795824e3bd76b2e32db2ec6e4d2d113413e518d1c63Daniel Dunbar 7960dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitBranch - Emit a branch to the specified basic block from the current 7970dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// insert block, taking care to avoid creation of branches from dummy 7980dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// blocks. It is legal to call this function even if there is no current 7990dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// insertion point. 8005e08ad3cc62ab94649959ae227a9a411a729bf49Daniel Dunbar /// 8010dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// This function clears the current insertion point. The caller should follow 8020dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// calls to this function with calls to Emit*Block prior to generation new 8030dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// code. 804d57a871339c7c98d58d93108b806f59bdf4e13e2Daniel Dunbar void EmitBranch(llvm::BasicBlock *Block); 805d57a871339c7c98d58d93108b806f59bdf4e13e2Daniel Dunbar 8060dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// HaveInsertPoint - True if an insertion point is defined. If not, this 8070dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// indicates that the current code being emitted is unreachable. 8080dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump bool HaveInsertPoint() const { 809a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar return Builder.GetInsertBlock() != 0; 810a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar } 811a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 8120dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EnsureInsertPoint - Ensure that an insertion point is defined so that 8130dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// emitted IR has a place to go. Note that by definition, if this function 8140dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// creates a block then that block is unreachable; callers may do better to 8150dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// detect when no insertion point is defined and simply skip IR generation. 816a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar void EnsureInsertPoint() { 817a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar if (!HaveInsertPoint()) 818a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar EmitBlock(createBasicBlock()); 819a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar } 8200dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 821488e993a135ce700b982bf099c3d6b856301d642Daniel Dunbar /// ErrorUnsupported - Print out an error that codegen doesn't support the 822dc5e8268292046114ffe02e48773572a91a310f1Chris Lattner /// specified stmt yet. 82390df4b6661968a84bf64baee489bb2f6d948fcc1Daniel Dunbar void ErrorUnsupported(const Stmt *S, const char *Type, 82490df4b6661968a84bf64baee489bb2f6d948fcc1Daniel Dunbar bool OmitOnError=false); 8255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 8275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Helpers 8285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 8290dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 8300953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers MakeQualifiers(QualType T) { 831df317bf71653eeb235da8337b1e8e790f9653aa4Mike Stump Qualifiers Quals = getContext().getCanonicalType(T).getQualifiers(); 8320953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Quals.setObjCGCAttr(getContext().getObjCGCAttrKind(T)); 8330953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return Quals; 8340953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 8350953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 8365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// CreateTempAlloca - This creates a alloca and inserts it into the entry 837195337d2e5d4625ae9dc1328c7cdbc7115b0261bDaniel Dunbar /// block. The caller is responsible for setting an appropriate alignment on 838195337d2e5d4625ae9dc1328c7cdbc7115b0261bDaniel Dunbar /// the alloca. 8395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::AllocaInst *CreateTempAlloca(const llvm::Type *Ty, 840259e9ccf882d11491ad149aec5e6d7a061c9f938Daniel Dunbar const llvm::Twine &Name = "tmp"); 8410dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 842ac418162692a951ca3796d6830496a85a2d12493John McCall /// InitTempAlloca - Provide an initial value for the given alloca. 843ac418162692a951ca3796d6830496a85a2d12493John McCall void InitTempAlloca(llvm::AllocaInst *Alloca, llvm::Value *Value); 844ac418162692a951ca3796d6830496a85a2d12493John McCall 8459bd4da2cfa8b956b851200db8f9a37e175edbb15Daniel Dunbar /// CreateIRTemp - Create a temporary IR object of the given type, with 8469bd4da2cfa8b956b851200db8f9a37e175edbb15Daniel Dunbar /// appropriate alignment. This routine should only be used when an temporary 8479bd4da2cfa8b956b851200db8f9a37e175edbb15Daniel Dunbar /// value needs to be stored into an alloca (for example, to avoid explicit 8489bd4da2cfa8b956b851200db8f9a37e175edbb15Daniel Dunbar /// PHI construction), but the type is the IR type, not the type appropriate 8499bd4da2cfa8b956b851200db8f9a37e175edbb15Daniel Dunbar /// for storing in memory. 850121b3facb4e0585d23766f9c1e4fdf9018a4b217Chris Lattner llvm::AllocaInst *CreateIRTemp(QualType T, const llvm::Twine &Name = "tmp"); 8519bd4da2cfa8b956b851200db8f9a37e175edbb15Daniel Dunbar 852195337d2e5d4625ae9dc1328c7cdbc7115b0261bDaniel Dunbar /// CreateMemTemp - Create a temporary memory object of the given type, with 853195337d2e5d4625ae9dc1328c7cdbc7115b0261bDaniel Dunbar /// appropriate alignment. 854121b3facb4e0585d23766f9c1e4fdf9018a4b217Chris Lattner llvm::AllocaInst *CreateMemTemp(QualType T, const llvm::Twine &Name = "tmp"); 855195337d2e5d4625ae9dc1328c7cdbc7115b0261bDaniel Dunbar 8565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EvaluateExprAsBool - Perform the usual unary conversions on the specified 8575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// expression and compare the result against zero, returning an Int1Ty value. 8585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::Value *EvaluateExprAsBool(const Expr *E); 8595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8609b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// EmitAnyExpr - Emit code to compute the specified expression which can have 8619b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// any type. The result is returned as an RValue struct. If this is an 8629b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// aggregate expression, the aggloc/agglocvolatile arguments indicate where 8639b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// the result should be returned. 86449d1cd5a09ed3df353371fd7f206674a85e0fb45Mike Stump /// 86549d1cd5a09ed3df353371fd7f206674a85e0fb45Mike Stump /// \param IgnoreResult - True if the resulting value isn't used. 8660dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump RValue EmitAnyExpr(const Expr *E, llvm::Value *AggLoc = 0, 86714c5cbf59cffee52275230922283a247de407712Anders Carlsson bool IsAggLocVolatile = false, bool IgnoreResult = false, 86814c5cbf59cffee52275230922283a247de407712Anders Carlsson bool IsInitializer = false); 869d9363c3a80168283b3da518b4e17f545a6246857Devang Patel 8700dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // EmitVAListRef - Emit a "reference" to a va_list; this is either the address 8710dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // or the value of the expression, depending on how va_list is defined. 8724fd0aa5803357d8c72eeac2cae15e12649ea08feEli Friedman llvm::Value *EmitVAListRef(const Expr *E); 8734fd0aa5803357d8c72eeac2cae15e12649ea08feEli Friedman 8740dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitAnyExprToTemp - Similary to EmitAnyExpr(), however, the result will 8750dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// always be accessible even if no aggregate location is provided. 87614c5cbf59cffee52275230922283a247de407712Anders Carlsson RValue EmitAnyExprToTemp(const Expr *E, bool IsAggLocVolatile = false, 87714c5cbf59cffee52275230922283a247de407712Anders Carlsson bool IsInitializer = false); 87846f45b9bec4a265ad8400a538e5ec3a5683617f1Daniel Dunbar 8793d3ec1c099ec8bfac3aa1fb0126fe515b7c7fa05John McCall /// EmitsAnyExprToMem - Emits the code necessary to evaluate an 8803d3ec1c099ec8bfac3aa1fb0126fe515b7c7fa05John McCall /// arbitrary expression into the given memory location. 8813d3ec1c099ec8bfac3aa1fb0126fe515b7c7fa05John McCall void EmitAnyExprToMem(const Expr *E, llvm::Value *Location, 8823d3ec1c099ec8bfac3aa1fb0126fe515b7c7fa05John McCall bool IsLocationVolatile = false, 8833d3ec1c099ec8bfac3aa1fb0126fe515b7c7fa05John McCall bool IsInitializer = false); 8843d3ec1c099ec8bfac3aa1fb0126fe515b7c7fa05John McCall 88527fe2e6c97a3782a0639d87b460741e8ba5d076dMike Stump /// EmitAggregateCopy - Emit an aggrate copy. 88627fe2e6c97a3782a0639d87b460741e8ba5d076dMike Stump /// 88727fe2e6c97a3782a0639d87b460741e8ba5d076dMike Stump /// \param isVolatile - True iff either the source or the destination is 88827fe2e6c97a3782a0639d87b460741e8ba5d076dMike Stump /// volatile. 8897482d12c345c6391f8956850545e2d4aa7701ce6Daniel Dunbar void EmitAggregateCopy(llvm::Value *DestPtr, llvm::Value *SrcPtr, 89027fe2e6c97a3782a0639d87b460741e8ba5d076dMike Stump QualType EltTy, bool isVolatile=false); 8917482d12c345c6391f8956850545e2d4aa7701ce6Daniel Dunbar 89251b09f2c528c8460b5465c676173324e44176d62Devang Patel /// StartBlock - Start new block named N. If insert block is a dummy block 89351b09f2c528c8460b5465c676173324e44176d62Devang Patel /// then reuse it. 89451b09f2c528c8460b5465c676173324e44176d62Devang Patel void StartBlock(const char *N); 89551b09f2c528c8460b5465c676173324e44176d62Devang Patel 896813733577d33ec56479667b49e1bff42dc6bba90Lauro Ramos Venancio /// GetAddrOfStaticLocalVar - Return the address of a static local variable. 897248a753f6b670692523c99afaeb8fe98f7ae3ca7Steve Naroff llvm::Constant *GetAddrOfStaticLocalVar(const VarDecl *BVD); 8984f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman 899dde0a94120915fa925d1ffcdb997c7b44dc9fa21Anders Carlsson /// GetAddrOfLocalVar - Return the address of a local variable. 900dde0a94120915fa925d1ffcdb997c7b44dc9fa21Anders Carlsson llvm::Value *GetAddrOfLocalVar(const VarDecl *VD); 9010dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 9024f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman /// getAccessedFieldNo - Given an encoded value and a result number, return 9034f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman /// the input field number being accessed. 9044f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman static unsigned getAccessedFieldNo(unsigned Idx, const llvm::Constant *Elts); 9054f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman 906d9becd1846e2c72bf6ad283faa1b048f33dd3afeChris Lattner llvm::BlockAddress *GetAddrOfLabel(const LabelStmt *L); 9073d00fdc82fd550ae4bfbb2e700a1fc85bbd6d6fdChris Lattner llvm::BasicBlock *GetIndirectGotoBlock(); 9080ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar 9091884eb0b5c55edda4893ddec45e7dbad79758782Anders Carlsson /// EmitNullInitialization - Generate code to set a value of the given type to 9101884eb0b5c55edda4893ddec45e7dbad79758782Anders Carlsson /// null, If the type contains data member pointers, they will be initialized 9111884eb0b5c55edda4893ddec45e7dbad79758782Anders Carlsson /// to -1 in accordance with the Itanium C++ ABI. 9121884eb0b5c55edda4893ddec45e7dbad79758782Anders Carlsson void EmitNullInitialization(llvm::Value *DestPtr, QualType Ty); 913ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson 914ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson // EmitVAArg - Generate code to get an argument from the passed in pointer 915ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson // and update it accordingly. The return value is a pointer to the argument. 916ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson // FIXME: We should be able to get rid of this method and use the va_arg 9170dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // instruction in LLVM instead once it works well enough. 918ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson llvm::Value *EmitVAArg(llvm::Value *VAListAddr, QualType Ty); 919f666b7780d04186521adcaedb0e15dfa4d5e6933Anders Carlsson 920f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// EmitVLASize - Generate code for any VLA size expressions that might occur 921f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// in a variably modified type. If Ty is a VLA, will return the value that 922f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// corresponds to the size in bytes of the VLA type. Will return 0 otherwise. 923d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// 924d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// This function can be called with a null (unreachable) insert point. 92560d35413662ebdcd1d31e34a8a7c665eb6977f1eAnders Carlsson llvm::Value *EmitVLASize(QualType Ty); 9260dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 927dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson // GetVLASize - Returns an LLVM value that corresponds to the size in bytes 928dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson // of a variable length array type. 929dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson llvm::Value *GetVLASize(const VariableArrayType *); 930dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson 9315f4307b7ba164b03c853c8d3eb4674d33f8967a6Anders Carlsson /// LoadCXXThis - Load the value of 'this'. This function is only valid while 9325f4307b7ba164b03c853c8d3eb4674d33f8967a6Anders Carlsson /// generating code for an C++ member function. 9332504941793b549323f9d29c62507cf21d865fadeJohn McCall llvm::Value *LoadCXXThis() { 9342504941793b549323f9d29c62507cf21d865fadeJohn McCall assert(CXXThisValue && "no 'this' value for this function"); 9352504941793b549323f9d29c62507cf21d865fadeJohn McCall return CXXThisValue; 9362504941793b549323f9d29c62507cf21d865fadeJohn McCall } 9371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 938c997d4278d329e18891aac9698fb991b2d4622ebAnders Carlsson /// LoadCXXVTT - Load the VTT parameter to base constructors/destructors have 939c997d4278d329e18891aac9698fb991b2d4622ebAnders Carlsson /// virtual bases. 9402504941793b549323f9d29c62507cf21d865fadeJohn McCall llvm::Value *LoadCXXVTT() { 9412504941793b549323f9d29c62507cf21d865fadeJohn McCall assert(CXXVTTValue && "no VTT value for this function"); 9422504941793b549323f9d29c62507cf21d865fadeJohn McCall return CXXVTTValue; 9432504941793b549323f9d29c62507cf21d865fadeJohn McCall } 944bff225ecf77fb891596ecb1b27196310d268365eJohn McCall 945bff225ecf77fb891596ecb1b27196310d268365eJohn McCall /// GetAddressOfBaseOfCompleteClass - Convert the given pointer to a 9468561a8666c70f924c8f0209c41b9b77bbbf90607Anders Carlsson /// complete class to the given direct base. 9478561a8666c70f924c8f0209c41b9b77bbbf90607Anders Carlsson llvm::Value * 9488561a8666c70f924c8f0209c41b9b77bbbf90607Anders Carlsson GetAddressOfDirectBaseInCompleteClass(llvm::Value *Value, 9498561a8666c70f924c8f0209c41b9b77bbbf90607Anders Carlsson const CXXRecordDecl *Derived, 9508561a8666c70f924c8f0209c41b9b77bbbf90607Anders Carlsson const CXXRecordDecl *Base, 9518561a8666c70f924c8f0209c41b9b77bbbf90607Anders Carlsson bool BaseIsVirtual); 952a88ad5618fcb07c5374c79d6781a33234984b039Anders Carlsson 953f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// GetAddressOfBaseClass - This function will add the necessary delta to the 954f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// load of 'this' and returns address of the base class. 95534a2d384c745ebc39cae45dc1c0c4a6a7012e09bAnders Carlsson llvm::Value *GetAddressOfBaseClass(llvm::Value *Value, 9568561a8666c70f924c8f0209c41b9b77bbbf90607Anders Carlsson const CXXRecordDecl *Derived, 95734a2d384c745ebc39cae45dc1c0c4a6a7012e09bAnders Carlsson const CXXBaseSpecifierArray &BasePath, 95834a2d384c745ebc39cae45dc1c0c4a6a7012e09bAnders Carlsson bool NullCheckValue); 95934a2d384c745ebc39cae45dc1c0c4a6a7012e09bAnders Carlsson 960a3697c9c155bda93fd2802f37084b620f4738822Anders Carlsson llvm::Value *GetAddressOfDerivedClass(llvm::Value *Value, 9618561a8666c70f924c8f0209c41b9b77bbbf90607Anders Carlsson const CXXRecordDecl *Derived, 962a04efdf635d35d88e65041fad007225d8c8d64a5Anders Carlsson const CXXBaseSpecifierArray &BasePath, 9635a0f49ebc83e7fe0da07b9964c44b0a7fae270cbAnders Carlsson bool NullCheckValue); 964a3697c9c155bda93fd2802f37084b620f4738822Anders Carlsson 965bb7e17b52ffaa4097b4c4d7935746d23539ffe2aAnders Carlsson llvm::Value *GetVirtualBaseClassOffset(llvm::Value *This, 966bb7e17b52ffaa4097b4c4d7935746d23539ffe2aAnders Carlsson const CXXRecordDecl *ClassDecl, 967bb7e17b52ffaa4097b4c4d7935746d23539ffe2aAnders Carlsson const CXXRecordDecl *BaseClassDecl); 9682f1986b557fa671c4f8c9dd0d071398edfc073d5Anders Carlsson 969c0bf462cf35fe050bddbd8bff967298e4a67e79dJohn McCall void EmitDelegateCXXConstructorCall(const CXXConstructorDecl *Ctor, 970c0bf462cf35fe050bddbd8bff967298e4a67e79dJohn McCall CXXCtorType CtorType, 971c0bf462cf35fe050bddbd8bff967298e4a67e79dJohn McCall const FunctionArgList &Args); 972155ed4a23366f4514befb1c9f5f89d16f8b8b6dbAnders Carlsson void EmitCXXConstructorCall(const CXXConstructorDecl *D, CXXCtorType Type, 973155ed4a23366f4514befb1c9f5f89d16f8b8b6dbAnders Carlsson bool ForVirtualBase, llvm::Value *This, 974b14095aa98c6fedd3625920c4ce834bcaf24d9f7Anders Carlsson CallExpr::const_arg_iterator ArgBeg, 975b14095aa98c6fedd3625920c4ce834bcaf24d9f7Anders Carlsson CallExpr::const_arg_iterator ArgEnd); 9761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 977288dcaf329c49b01dacd5c1dd9f35609555feecdFariborz Jahanian void EmitCXXAggrConstructorCall(const CXXConstructorDecl *D, 978569c1f4a6c703eaa8b963bed7d5c2fd5d4569e93Anders Carlsson const ConstantArrayType *ArrayTy, 9795d4d946ec2d88696fd8422aeb64dc29688e6a2c1Anders Carlsson llvm::Value *ArrayPtr, 9805d4d946ec2d88696fd8422aeb64dc29688e6a2c1Anders Carlsson CallExpr::const_arg_iterator ArgBeg, 9815d4d946ec2d88696fd8422aeb64dc29688e6a2c1Anders Carlsson CallExpr::const_arg_iterator ArgEnd); 9825d4d946ec2d88696fd8422aeb64dc29688e6a2c1Anders Carlsson 983569c1f4a6c703eaa8b963bed7d5c2fd5d4569e93Anders Carlsson void EmitCXXAggrConstructorCall(const CXXConstructorDecl *D, 984569c1f4a6c703eaa8b963bed7d5c2fd5d4569e93Anders Carlsson llvm::Value *NumElements, 9855d4d946ec2d88696fd8422aeb64dc29688e6a2c1Anders Carlsson llvm::Value *ArrayPtr, 9865d4d946ec2d88696fd8422aeb64dc29688e6a2c1Anders Carlsson CallExpr::const_arg_iterator ArgBeg, 9875d4d946ec2d88696fd8422aeb64dc29688e6a2c1Anders Carlsson CallExpr::const_arg_iterator ArgEnd); 988b14095aa98c6fedd3625920c4ce834bcaf24d9f7Anders Carlsson 989f800f6c09ed4a71bcb593d6962e0fda2c2845a70Fariborz Jahanian void EmitCXXAggrDestructorCall(const CXXDestructorDecl *D, 990f800f6c09ed4a71bcb593d6962e0fda2c2845a70Fariborz Jahanian const ArrayType *Array, 991f800f6c09ed4a71bcb593d6962e0fda2c2845a70Fariborz Jahanian llvm::Value *This); 9921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 99372c2153b466263a21870b2b1c817900d4981493eFariborz Jahanian void EmitCXXAggrDestructorCall(const CXXDestructorDecl *D, 99472c2153b466263a21870b2b1c817900d4981493eFariborz Jahanian llvm::Value *NumElements, 99572c2153b466263a21870b2b1c817900d4981493eFariborz Jahanian llvm::Value *This); 99672c2153b466263a21870b2b1c817900d4981493eFariborz Jahanian 99702e370a02f05b4a734fe5e8c88efc4ed9dac60faAnders Carlsson llvm::Function *GenerateCXXAggrDestructorHelper(const CXXDestructorDecl *D, 99802e370a02f05b4a734fe5e8c88efc4ed9dac60faAnders Carlsson const ArrayType *Array, 99902e370a02f05b4a734fe5e8c88efc4ed9dac60faAnders Carlsson llvm::Value *This); 100088f4280f6b60edcbdea6a38a3da8b17d66473ad6Fariborz Jahanian 10017267c1693abe7875b0c57268be05005ae013c6c9Anders Carlsson void EmitCXXDestructorCall(const CXXDestructorDecl *D, CXXDtorType Type, 10028e6404ca28d6bbb76e97ea2a53a74816c2a74665Anders Carlsson bool ForVirtualBase, llvm::Value *This); 1003ef66872797e46ced3ffdb428e582bc7f00474f99Fariborz Jahanian 1004ef66872797e46ced3ffdb428e582bc7f00474f99Fariborz Jahanian void EmitNewArrayInitializer(const CXXNewExpr *E, llvm::Value *NewPtr, 1005ef66872797e46ced3ffdb428e582bc7f00474f99Fariborz Jahanian llvm::Value *NumElements); 10061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1007f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall void EmitCXXTemporary(const CXXTemporary *Temporary, llvm::Value *Ptr); 10081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1009a00703dccbdc6cc4a293db38477dea7db5538c7eAnders Carlsson llvm::Value *EmitCXXNewExpr(const CXXNewExpr *E); 101060e282cc1e508be327b0481cecedc206873cb86aAnders Carlsson void EmitCXXDeleteExpr(const CXXDeleteExpr *E); 10111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10124bf8152799ec41796f989ea1b94f6f1bac349117Eli Friedman void EmitDeleteCall(const FunctionDecl *DeleteFD, llvm::Value *Ptr, 10134bf8152799ec41796f989ea1b94f6f1bac349117Eli Friedman QualType DeleteTy); 10144bf8152799ec41796f989ea1b94f6f1bac349117Eli Friedman 1015c2e84ae9a6d25cea3e583c768e576b4c981ec028Mike Stump llvm::Value* EmitCXXTypeidExpr(const CXXTypeidExpr *E); 1016c849c052d6b4b70f2651c1969531861a5f230053Mike Stump llvm::Value *EmitDynamicCast(llvm::Value *V, const CXXDynamicCastExpr *DCE); 1017c2e84ae9a6d25cea3e583c768e576b4c981ec028Mike Stump 1018b14e62d5aee7522b98c410ee65bd750c2cfe6f01Mike Stump void EmitCheck(llvm::Value *, unsigned Size); 1019b14e62d5aee7522b98c410ee65bd750c2cfe6f01Mike Stump 1020dd36d328730d8c02915d0884541b45ec6ca0049dChris Lattner llvm::Value *EmitScalarPrePostIncDec(const UnaryOperator *E, LValue LV, 1021dd36d328730d8c02915d0884541b45ec6ca0049dChris Lattner bool isInc, bool isPre); 1022dd36d328730d8c02915d0884541b45ec6ca0049dChris Lattner ComplexPairTy EmitComplexPrePostIncDec(const UnaryOperator *E, LValue LV, 1023dd36d328730d8c02915d0884541b45ec6ca0049dChris Lattner bool isInc, bool isPre); 10245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 10255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Declaration Emission 10265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 10270dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1028d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// EmitDecl - Emit a declaration. 1029d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// 1030d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// This function can be called with a null (unreachable) insert point. 10315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitDecl(const Decl &D); 1032d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar 10331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// EmitBlockVarDecl - Emit a block variable declaration. 1034d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// 1035d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// This function can be called with a null (unreachable) insert point. 1036248a753f6b670692523c99afaeb8fe98f7ae3ca7Steve Naroff void EmitBlockVarDecl(const VarDecl &D); 1037d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar 1038f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall typedef void SpecialInitFn(CodeGenFunction &Init, const VarDecl &D, 1039f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::Value *Address); 1040f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 1041d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// EmitLocalBlockVarDecl - Emit a local block variable declaration. 1042d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// 1043d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// This function can be called with a null (unreachable) insert point. 1044f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall void EmitLocalBlockVarDecl(const VarDecl &D, SpecialInitFn *SpecialInit = 0); 1045d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar 1046f6b89a173827457c28ac77b7cf091a24ef484e8aAnders Carlsson void EmitStaticBlockVarDecl(const VarDecl &D, 1047f6b89a173827457c28ac77b7cf091a24ef484e8aAnders Carlsson llvm::GlobalValue::LinkageTypes Linkage); 1048b7ec246872b412f0e7bb9e93eacfd78cfa6adfb3Daniel Dunbar 1049b7ec246872b412f0e7bb9e93eacfd78cfa6adfb3Daniel Dunbar /// EmitParmDecl - Emit a ParmVarDecl or an ImplicitParamDecl. 1050b7ec246872b412f0e7bb9e93eacfd78cfa6adfb3Daniel Dunbar void EmitParmDecl(const VarDecl &D, llvm::Value *Arg); 10510dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 10525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 10535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Statement Emission 10545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 10555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10560dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitStopPoint - Emit a debug stoppoint if we are emitting debug info. 10570912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar void EmitStopPoint(const Stmt *S); 10580912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar 10590dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitStmt - Emit the code for the statement \arg S. It is legal to call 10600dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// this function even if there is no current insertion point. 10610dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// 10620dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// This function may clear the current insertion point; callers should use 10630dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EnsureInsertPoint if they wish to subsequently generate code without first 10640dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// calling EmitBlock, EmitBranch, or EmitStmt. 10655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitStmt(const Stmt *S); 1066a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 10670912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar /// EmitSimpleStmt - Try to emit a "simple" statement which does not 10680dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// necessarily require an insertion point or debug information; typically 10690dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// because the statement amounts to a jump or a container of other 10700dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// statements. 10710912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar /// 10720912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar /// \return True if the statement was handled. 10730912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar bool EmitSimpleStmt(const Stmt *S); 10740912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar 10759b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner RValue EmitCompoundStmt(const CompoundStmt &S, bool GetLast = false, 10769b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner llvm::Value *AggLoc = 0, bool isAggVol = false); 1077a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 10780dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitLabel - Emit the block for the given label. It is legal to call this 10790dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// function even if there is no current insertion point. 108091d723da7b68be5245c3ac58aa2a36d04658cfb8Chris Lattner void EmitLabel(const LabelStmt &S); // helper for EmitLabelStmt. 1081a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 10825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitLabelStmt(const LabelStmt &S); 10835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitGotoStmt(const GotoStmt &S); 10840ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar void EmitIndirectGotoStmt(const IndirectGotoStmt &S); 10855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitIfStmt(const IfStmt &S); 10865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitWhileStmt(const WhileStmt &S); 10875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitDoStmt(const DoStmt &S); 10885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitForStmt(const ForStmt &S); 10895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitReturnStmt(const ReturnStmt &S); 10905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitDeclStmt(const DeclStmt &S); 10910912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar void EmitBreakStmt(const BreakStmt &S); 10920912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar void EmitContinueStmt(const ContinueStmt &S); 109351b09f2c528c8460b5465c676173324e44176d62Devang Patel void EmitSwitchStmt(const SwitchStmt &S); 109451b09f2c528c8460b5465c676173324e44176d62Devang Patel void EmitDefaultStmt(const DefaultStmt &S); 109551b09f2c528c8460b5465c676173324e44176d62Devang Patel void EmitCaseStmt(const CaseStmt &S); 1096c049e4f406a7f7179eba98659044a32508e53289Devang Patel void EmitCaseStmtRange(const CaseStmt &S); 1097fb1aeb804c08d5288a923fb278161783e6abdc66Anders Carlsson void EmitAsmStmt(const AsmStmt &S); 10980dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 10993d8400d9a61aa4b63ff35e5cede405b32a41425eAnders Carlsson void EmitObjCForCollectionStmt(const ObjCForCollectionStmt &S); 110064d5d6c5903157c521af496479d06dc26032d718Anders Carlsson void EmitObjCAtTryStmt(const ObjCAtTryStmt &S); 110164d5d6c5903157c521af496479d06dc26032d718Anders Carlsson void EmitObjCAtThrowStmt(const ObjCAtThrowStmt &S); 110210cac6f7115b59a466bb8d2d51cdddeb38aadc37Chris Lattner void EmitObjCAtSynchronizedStmt(const ObjCAtSynchronizedStmt &S); 11030dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 110486a3a03667bdb0dcab7e6a2877dfd234b07a6d43Douglas Gregor llvm::Constant *getUnwindResumeOrRethrowFn(); 110559a7000a79118e4c140885ccbb2ac6a686a73092John McCall void EnterCXXTryStmt(const CXXTryStmt &S, bool IsFnTryBlock = false); 110659a7000a79118e4c140885ccbb2ac6a686a73092John McCall void ExitCXXTryStmt(const CXXTryStmt &S, bool IsFnTryBlock = false); 11079fc6a7774643a810c8501dae2323e863fefb623eJohn McCall 11086815e941998659a55c20c147861b0f437928c3d8Anders Carlsson void EmitCXXTryStmt(const CXXTryStmt &S); 11096815e941998659a55c20c147861b0f437928c3d8Anders Carlsson 11105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 11115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // LValue Expression Emission 11125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 11135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 111413e81737a433b23f8c662d10d1d57356122a8caaDaniel Dunbar /// GetUndefRValue - Get an appropriate 'undef' rvalue for the given type. 111513e81737a433b23f8c662d10d1d57356122a8caaDaniel Dunbar RValue GetUndefRValue(QualType Ty); 111613e81737a433b23f8c662d10d1d57356122a8caaDaniel Dunbar 1117ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar /// EmitUnsupportedRValue - Emit a dummy r-value using the type of E 1118ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar /// and issue an ErrorUnsupported style diagnostic (using the 1119ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar /// provided Name). 1120ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar RValue EmitUnsupportedRValue(const Expr *E, 1121ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar const char *Name); 1122ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar 11230dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitUnsupportedLValue - Emit a dummy l-value using the type of E and issue 11240dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// an ErrorUnsupported style diagnostic (using the provided Name). 11256ba82a4a4b295e54cf192c3e98b28f39990c6194Daniel Dunbar LValue EmitUnsupportedLValue(const Expr *E, 11266ba82a4a4b295e54cf192c3e98b28f39990c6194Daniel Dunbar const char *Name); 11276ba82a4a4b295e54cf192c3e98b28f39990c6194Daniel Dunbar 11285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EmitLValue - Emit code to compute a designator that specifies the location 11295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// of the expression. 11305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 11315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// This can return one of two things: a simple address or a bitfield 11325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// reference. In either case, the LLVM Value* in the LValue structure is 11335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// guaranteed to be an LLVM pointer type. 11345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 11355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// If this returns a bitfield reference, nothing about the pointee type of 11365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// the LLVM value is known: For example, it may not be a pointer to an 11375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// integer. 11385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 11395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// If this returns a normal address, and if the lvalue's C type is fixed 11405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// size, this method guarantees that the returned pointer type will point to 11415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// an LLVM type of the same size of the lvalue's type. If the lvalue has a 11425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// variable length type, this is not possible. 11435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 11445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitLValue(const Expr *E); 11450dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1146b14e62d5aee7522b98c410ee65bd750c2cfe6f01Mike Stump /// EmitCheckedLValue - Same as EmitLValue but additionally we generate 1147b14e62d5aee7522b98c410ee65bd750c2cfe6f01Mike Stump /// checking code to guard against undefined behavior. This is only 1148b14e62d5aee7522b98c410ee65bd750c2cfe6f01Mike Stump /// suitable when we know that the address will be used to access the 1149b14e62d5aee7522b98c410ee65bd750c2cfe6f01Mike Stump /// object. 1150b14e62d5aee7522b98c410ee65bd750c2cfe6f01Mike Stump LValue EmitCheckedLValue(const Expr *E); 1151b14e62d5aee7522b98c410ee65bd750c2cfe6f01Mike Stump 11529d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// EmitLoadOfScalar - Load a scalar value from an address, taking 11539d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// care to appropriately convert from the memory representation to 11549d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// the LLVM value representation. 115509429b962811f2c0a7a81a1b0a89f96f5878b20cMike Stump llvm::Value *EmitLoadOfScalar(llvm::Value *Addr, bool Volatile, 11569d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar QualType Ty); 11579d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar 11589d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// EmitStoreOfScalar - Store a scalar value to an address, taking 11599d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// care to appropriately convert from the memory representation to 11609d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// the LLVM value representation. 116109429b962811f2c0a7a81a1b0a89f96f5878b20cMike Stump void EmitStoreOfScalar(llvm::Value *Value, llvm::Value *Addr, 1162b4aa4664ec851573624a7a29c6c750fc1d5cc268Anders Carlsson bool Volatile, QualType Ty); 11639d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar 11645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EmitLoadOfLValue - Given an expression that represents a value lvalue, 11655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// this method emits the address of the lvalue, then loads the result as an 11665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// rvalue, returning the rvalue. 11675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer RValue EmitLoadOfLValue(LValue V, QualType LVType); 1168213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman RValue EmitLoadOfExtVectorElementLValue(LValue V, QualType LVType); 11693b8c22d93da1432b2d4cea779d14912645c93866Lauro Ramos Venancio RValue EmitLoadOfBitfieldLValue(LValue LV, QualType ExprType); 117085c59edda02df48fae8dc85049743319bc6e7e89Daniel Dunbar RValue EmitLoadOfPropertyRefLValue(LValue LV, QualType ExprType); 117143f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian RValue EmitLoadOfKVCRefLValue(LValue LV, QualType ExprType); 11725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11730dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 11745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EmitStoreThroughLValue - Store the specified rvalue into the specified 11755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// lvalue, where both are guaranteed to the have the same type, and that type 11765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// is 'Ty'. 11775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitStoreThroughLValue(RValue Src, LValue Dst, QualType Ty); 1178213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman void EmitStoreThroughExtVectorComponentLValue(RValue Src, LValue Dst, 1179213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman QualType Ty); 118085c59edda02df48fae8dc85049743319bc6e7e89Daniel Dunbar void EmitStoreThroughPropertyRefLValue(RValue Src, LValue Dst, QualType Ty); 118143f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian void EmitStoreThroughKVCRefLValue(RValue Src, LValue Dst, QualType Ty); 1182ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar 11830dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitStoreThroughLValue - Store Src into Dst with same constraints as 11840dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitStoreThroughLValue. 1185ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar /// 11860dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// \param Result [out] - If non-null, this will be set to a Value* for the 11870dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// bit-field contents after the store, appropriate for use as the result of 11880dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// an assignment to the bit-field. 1189ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar void EmitStoreThroughBitfieldLValue(RValue Src, LValue Dst, QualType Ty, 1190ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar llvm::Value **Result=0); 11910dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 119222c940ee588a420cd2e6c8f68be2ac3cc80061ffChristopher Lamb // Note: only availabe for agg return types 119380e62c29fe21cd06c93eba6e72b7e32dca06fcf9Daniel Dunbar LValue EmitBinaryOperatorLValue(const BinaryOperator *E); 11946a03e345bb3c971750920e34a0d7d1ea7c9eceb7Douglas Gregor LValue EmitCompoundAssignOperatorLValue(const CompoundAssignOperator *E); 11955b5c9ef865607e179413462dcd71bcebb5b7daaeDaniel Dunbar // Note: only available for agg return types 119622c940ee588a420cd2e6c8f68be2ac3cc80061ffChristopher Lamb LValue EmitCallExprLValue(const CallExpr *E); 11975b5c9ef865607e179413462dcd71bcebb5b7daaeDaniel Dunbar // Note: only available for agg return types 11985b5c9ef865607e179413462dcd71bcebb5b7daaeDaniel Dunbar LValue EmitVAArgExprLValue(const VAArgExpr *E); 11995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitDeclRefLValue(const DeclRefExpr *E); 12005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitStringLiteralLValue(const StringLiteral *E); 1201eaf2bb89eb2aad3b80673de30febe52df43c10ecChris Lattner LValue EmitObjCEncodeExprLValue(const ObjCEncodeExpr *E); 1202662b71ee82339c67f2c3689196e716c6560cf925Daniel Dunbar LValue EmitPredefinedFunctionName(unsigned Type); 1203d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner LValue EmitPredefinedLValue(const PredefinedExpr *E); 12045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitUnaryOpLValue(const UnaryOperator *E); 12055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitArraySubscriptExpr(const ArraySubscriptExpr *E); 1206213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman LValue EmitExtVectorElementExpr(const ExtVectorElementExpr *E); 1207b84a06e68ffd71da22e3c75b6e4bbdba37816413Devang Patel LValue EmitMemberExpr(const MemberExpr *E); 1208820bca41c3899374775d2a1dfc2ef2e22aaf1c7bFariborz Jahanian LValue EmitObjCIsaExpr(const ObjCIsaExpr *E); 120906e863f2902b8ba55b056308875c19f7ba3dab25Eli Friedman LValue EmitCompoundLiteralLValue(const CompoundLiteralExpr *E); 12106fcec8b58d0571866fcb162db947b029cc539ec4Anders Carlsson LValue EmitConditionalOperatorLValue(const ConditionalOperator *E); 121175dfedaf702822c9e51a4f3c5d3ecf2d2ad99272Chris Lattner LValue EmitCastLValue(const CastExpr *E); 121248620bafe4ba879f96c2d17caefeb79f3fae2eeaFariborz Jahanian LValue EmitNullInitializationLValue(const CXXZeroInitValueExpr *E); 1213909fbf70223ea04a5ec8d449789f3683a89701ffAnders Carlsson 12142a03192a02dbf4fdff438d1e658356bde871aba4Daniel Dunbar llvm::Value *EmitIvarOffset(const ObjCInterfaceDecl *Interface, 121529e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar const ObjCIvarDecl *Ivar); 1216a9976d3b192690db20f59dc44099ac4ca939bdb7John McCall LValue EmitLValueForAnonRecordField(llvm::Value* Base, 1217a9976d3b192690db20f59dc44099ac4ca939bdb7John McCall const FieldDecl* Field, 1218a9976d3b192690db20f59dc44099ac4ca939bdb7John McCall unsigned CVRQualifiers); 12190ed303c918915cbe2c611cddbfabd00404664831Anders Carlsson LValue EmitLValueForField(llvm::Value* Base, const FieldDecl* Field, 1220e6d2a534851a649485cb087e9dfcaf8a65886858Anders Carlsson unsigned CVRQualifiers); 122106a2970e9480c6d02b367b2f970baff29b9f9721Anders Carlsson 122206a2970e9480c6d02b367b2f970baff29b9f9721Anders Carlsson /// EmitLValueForFieldInitialization - Like EmitLValueForField, except that 122306a2970e9480c6d02b367b2f970baff29b9f9721Anders Carlsson /// if the Field is a reference, this will return the address of the reference 122406a2970e9480c6d02b367b2f970baff29b9f9721Anders Carlsson /// and not the address of the value stored in the reference. 122506a2970e9480c6d02b367b2f970baff29b9f9721Anders Carlsson LValue EmitLValueForFieldInitialization(llvm::Value* Base, 122606a2970e9480c6d02b367b2f970baff29b9f9721Anders Carlsson const FieldDecl* Field, 122706a2970e9480c6d02b367b2f970baff29b9f9721Anders Carlsson unsigned CVRQualifiers); 122806a2970e9480c6d02b367b2f970baff29b9f9721Anders Carlsson 122945012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian LValue EmitLValueForIvar(QualType ObjectTy, 123045012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian llvm::Value* Base, const ObjCIvarDecl *Ivar, 123129e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar unsigned CVRQualifiers); 123229e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar 12330ed303c918915cbe2c611cddbfabd00404664831Anders Carlsson LValue EmitLValueForBitfield(llvm::Value* Base, const FieldDecl* Field, 1234598d3f61b6ca854e9d3c2f3359e24468502a61aaFariborz Jahanian unsigned CVRQualifiers); 1235fd64bb635dc221baa19f81d5d2a084f7eb269f7fFariborz Jahanian 1236a99038c0757a836c6faeeddaa5dfd249b32f6e9eMike Stump LValue EmitBlockDeclRefLValue(const BlockDeclRefExpr *E); 1237a99038c0757a836c6faeeddaa5dfd249b32f6e9eMike Stump 1238b58d017f2b9eeed33f2ab3ede968b89cf5296bf2Anders Carlsson LValue EmitCXXConstructLValue(const CXXConstructExpr *E); 1239e61c9e80a108b5db7e5f0e702f0e455d737c6390Anders Carlsson LValue EmitCXXBindTemporaryLValue(const CXXBindTemporaryExpr *E); 1240b9ea0b53d323cdca2b8284ff986a878e195cb97fAnders Carlsson LValue EmitCXXExprWithTemporariesLValue(const CXXExprWithTemporaries *E); 1241c2e84ae9a6d25cea3e583c768e576b4c981ec028Mike Stump LValue EmitCXXTypeidLValue(const CXXTypeidExpr *E); 1242b9ea0b53d323cdca2b8284ff986a878e195cb97fAnders Carlsson 12430a04d77bde7e3a661c2b41b60630d125d09ed6efDaniel Dunbar LValue EmitObjCMessageExprLValue(const ObjCMessageExpr *E); 1244391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner LValue EmitObjCIvarRefLValue(const ObjCIvarRefExpr *E); 124585c59edda02df48fae8dc85049743319bc6e7e89Daniel Dunbar LValue EmitObjCPropertyRefLValue(const ObjCPropertyRefExpr *E); 124609105f52b1f28cbb1374c27c3c70f5517e2c465dFariborz Jahanian LValue EmitObjCKVCRefLValue(const ObjCImplicitSetterGetterRefExpr *E); 1247654599454c8e6cc83b1b9b3af43c49c2f66a26cbChris Lattner LValue EmitObjCSuperExprLValue(const ObjCSuperExpr *E); 1248654599454c8e6cc83b1b9b3af43c49c2f66a26cbChris Lattner LValue EmitStmtExprLValue(const StmtExpr *E); 12498bfd31f9dad09cd52225d868bbd92a9bebe87775Fariborz Jahanian LValue EmitPointerToDataMemberBinaryExpr(const BinaryOperator *E); 125003b2960c14aede6ac82bdef32247094ebb72fa69Fariborz Jahanian LValue EmitObjCSelectorLValue(const ObjCSelectorExpr *E); 12518bfd31f9dad09cd52225d868bbd92a9bebe87775Fariborz Jahanian 12525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 1253883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner // Scalar Expression Emission 12545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 12555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12560dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitCall - Generate a call of the given function, expecting the given 12570dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// result type, and using the given argument list which specifies both the 12580dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// LLVM arguments and the types they were derived from. 1259c0ef9f59937c3971c48b6fed37cf5bd8985c024bDaniel Dunbar /// 1260f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// \param TargetDecl - If given, the decl of the function in a direct call; 1261f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// used to set attributes on the call (noreturn, etc.). 126288b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar RValue EmitCall(const CGFunctionInfo &FnInfo, 126388b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar llvm::Value *Callee, 1264f3c47c9525153aea2de0ec4bd615b9cf2d81c103Anders Carlsson ReturnValueSlot ReturnValue, 1265c0ef9f59937c3971c48b6fed37cf5bd8985c024bDaniel Dunbar const CallArgList &Args, 1266dd5c98f709837e5dd3da08d44d1ce407975df2cfDavid Chisnall const Decl *TargetDecl = 0, 12674b02afcb45cd1a384de7d45f440a8be091dd500bDavid Chisnall llvm::Instruction **callOrInvoke = 0); 12681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 126931777a2540879051a3c643b90e02c3fd3d315243Anders Carlsson RValue EmitCall(QualType FnType, llvm::Value *Callee, 1270d2490a91341b57df7a7e54f8a707e7ecde2eeb4eAnders Carlsson ReturnValueSlot ReturnValue, 1271986477149db76e6d9f8d3c9859c9880c11b680aeAnders Carlsson CallExpr::const_arg_iterator ArgBeg, 1272986477149db76e6d9f8d3c9859c9880c11b680aeAnders Carlsson CallExpr::const_arg_iterator ArgEnd, 1273986477149db76e6d9f8d3c9859c9880c11b680aeAnders Carlsson const Decl *TargetDecl = 0); 1274d2490a91341b57df7a7e54f8a707e7ecde2eeb4eAnders Carlsson RValue EmitCallExpr(const CallExpr *E, 1275d2490a91341b57df7a7e54f8a707e7ecde2eeb4eAnders Carlsson ReturnValueSlot ReturnValue = ReturnValueSlot()); 12761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1277f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::CallSite EmitCallOrInvoke(llvm::Value *Callee, 1278f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::Value * const *ArgBegin, 1279f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::Value * const *ArgEnd, 1280f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall const llvm::Twine &Name = ""); 1281f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 1282566abee1e9828a7700b51e4d17ea08234fde3bb4Anders Carlsson llvm::Value *BuildVirtualCall(const CXXMethodDecl *MD, llvm::Value *This, 1283f0070dbae9535836ad41711081465dec2259786bMike Stump const llvm::Type *Ty); 1284566abee1e9828a7700b51e4d17ea08234fde3bb4Anders Carlsson llvm::Value *BuildVirtualCall(const CXXDestructorDecl *DD, CXXDtorType Type, 1285566abee1e9828a7700b51e4d17ea08234fde3bb4Anders Carlsson llvm::Value *&This, const llvm::Type *Ty); 1286566abee1e9828a7700b51e4d17ea08234fde3bb4Anders Carlsson 1287b9de2c55b2a33776e2bee8ee57df7599b374c8a5Anders Carlsson RValue EmitCXXMemberCall(const CXXMethodDecl *MD, 1288b9de2c55b2a33776e2bee8ee57df7599b374c8a5Anders Carlsson llvm::Value *Callee, 1289a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson ReturnValueSlot ReturnValue, 1290b9de2c55b2a33776e2bee8ee57df7599b374c8a5Anders Carlsson llvm::Value *This, 1291c997d4278d329e18891aac9698fb991b2d4622ebAnders Carlsson llvm::Value *VTT, 1292b9de2c55b2a33776e2bee8ee57df7599b374c8a5Anders Carlsson CallExpr::const_arg_iterator ArgBeg, 1293b9de2c55b2a33776e2bee8ee57df7599b374c8a5Anders Carlsson CallExpr::const_arg_iterator ArgEnd); 1294a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson RValue EmitCXXMemberCallExpr(const CXXMemberCallExpr *E, 1295a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson ReturnValueSlot ReturnValue); 1296a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson RValue EmitCXXMemberPointerCallExpr(const CXXMemberCallExpr *E, 1297a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson ReturnValueSlot ReturnValue); 12985549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek 12990f294632f36459174199b77699e339715244b5abAnders Carlsson RValue EmitCXXOperatorMemberCallExpr(const CXXOperatorCallExpr *E, 1300a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson const CXXMethodDecl *MD, 1301a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson ReturnValueSlot ReturnValue); 13021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1303375c31c4673f83f925de221752cf801c2fbbb246Anders Carlsson 13041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump RValue EmitBuiltinExpr(const FunctionDecl *FD, 1305ef2abfee3ea16ec74942dc09e9e425f46aeb2582Daniel Dunbar unsigned BuiltinID, const CallExpr *E); 13065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1307a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson RValue EmitBlockCallExpr(const CallExpr *E, ReturnValueSlot ReturnValue); 130809429b962811f2c0a7a81a1b0a89f96f5878b20cMike Stump 13090dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitTargetBuiltinExpr - Emit the given builtin call. Returns 0 if the call 13100dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// is unhandled by the current target. 1311f02e9ddf5efc75917af712b3c7f909581205f0a5Daniel Dunbar llvm::Value *EmitTargetBuiltinExpr(unsigned BuiltinID, const CallExpr *E); 1312f02e9ddf5efc75917af712b3c7f909581205f0a5Daniel Dunbar 13132752c0137d95aa2f4ee1cdff4b564bac842e041bChris Lattner llvm::Value *EmitARMBuiltinExpr(unsigned BuiltinID, const CallExpr *E); 131430d91718a676177f0d0d0210ce4fdb4f616df6e5Nate Begeman llvm::Value *EmitNeonCall(llvm::Function *F, 131530d91718a676177f0d0d0210ce4fdb4f616df6e5Nate Begeman llvm::SmallVectorImpl<llvm::Value*> &O, 131661eecf5aea018ea65c9ab0bccacd2996b15c632dNate Begeman const char *name, bool splat = false, 131761eecf5aea018ea65c9ab0bccacd2996b15c632dNate Begeman unsigned shift = 0, bool rightshift = false); 1318d075c01c359b9cc120c3accc7166990f9f4ac423Nate Begeman llvm::Value *EmitNeonSplat(llvm::Value *V, llvm::Constant *Idx); 1319464ccb68f22a7e1c0a2844551c16f721540c91c3Nate Begeman llvm::Value *EmitNeonShiftVector(llvm::Value *V, const llvm::Type *Ty, 132061eecf5aea018ea65c9ab0bccacd2996b15c632dNate Begeman bool negateForRightShift); 132130d91718a676177f0d0d0210ce4fdb4f616df6e5Nate Begeman 1322564f1de67d7ba43646b8740db86d6269e3dfbe0bAnders Carlsson llvm::Value *EmitX86BuiltinExpr(unsigned BuiltinID, const CallExpr *E); 1323564f1de67d7ba43646b8740db86d6269e3dfbe0bAnders Carlsson llvm::Value *EmitPPCBuiltinExpr(unsigned BuiltinID, const CallExpr *E); 13240dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1325ed7c618f849e2541b1d0288c43154937652c5b15Daniel Dunbar llvm::Value *EmitObjCProtocolExpr(const ObjCProtocolExpr *E); 13267f02f721d48772e4eee4fccd8af4f800be1bbc1eChris Lattner llvm::Value *EmitObjCStringLiteral(const ObjCStringLiteral *E); 13278fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner llvm::Value *EmitObjCSelectorExpr(const ObjCSelectorExpr *E); 1328ef072fd2f3347cfd857d6eb787b245b950771430John McCall RValue EmitObjCMessageExpr(const ObjCMessageExpr *E, 1329ef072fd2f3347cfd857d6eb787b245b950771430John McCall ReturnValueSlot Return = ReturnValueSlot()); 1330ef072fd2f3347cfd857d6eb787b245b950771430John McCall RValue EmitObjCPropertyGet(const Expr *E, 1331ef072fd2f3347cfd857d6eb787b245b950771430John McCall ReturnValueSlot Return = ReturnValueSlot()); 1332ef072fd2f3347cfd857d6eb787b245b950771430John McCall RValue EmitObjCSuperPropertyGet(const Expr *Exp, const Selector &S, 1333ef072fd2f3347cfd857d6eb787b245b950771430John McCall ReturnValueSlot Return = ReturnValueSlot()); 133443f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian void EmitObjCPropertySet(const Expr *E, RValue Src); 1335f469557743f77918d2ca8226e2ee2888998ffd4aFariborz Jahanian void EmitObjCSuperPropertySet(const Expr *E, const Selector &S, RValue Src); 13368fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner 13378fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner 13384029ca7ae9d3ffd7738fe2ed8782bebc30f36fd6Anders Carlsson /// EmitReferenceBindingToExpr - Emits a reference binding to the passed in 13394029ca7ae9d3ffd7738fe2ed8782bebc30f36fd6Anders Carlsson /// expression. Will emit a temporary variable if E is not an LValue. 134032f36baa6c8d491c374af622b4e3ac28d597453cAnders Carlsson RValue EmitReferenceBindingToExpr(const Expr* E, 134132f36baa6c8d491c374af622b4e3ac28d597453cAnders Carlsson const NamedDecl *InitializedDecl); 13423aba09376c5f49c4c8d176109ea4835bc2c528eeAnders Carlsson 1343883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner //===--------------------------------------------------------------------===// 1344bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattner // Expression Emission 1345883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner //===--------------------------------------------------------------------===// 1346bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattner 1347bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattner // Expressions are broken into three classes: scalar, complex, aggregate. 13480dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 13490dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitScalarExpr - Emit the computation of the specified expression of LLVM 13500dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// scalar type, returning the result. 135114c5cbf59cffee52275230922283a247de407712Anders Carlsson llvm::Value *EmitScalarExpr(const Expr *E , bool IgnoreResultAssign = false); 13520dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 13533707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner /// EmitScalarConversion - Emit a conversion from the specified type to the 13543707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner /// specified destination type, both of which are LLVM scalar types. 13553707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner llvm::Value *EmitScalarConversion(llvm::Value *Src, QualType SrcTy, 13563707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner QualType DstTy); 13570dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 13584f1a7b380809b4ca19ad2daff61bc11cd1e979d8Chris Lattner /// EmitComplexToScalarConversion - Emit a conversion from the specified 13590dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// complex type to the specified destination type, where the destination type 13600dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// is an LLVM scalar type. 13614f1a7b380809b4ca19ad2daff61bc11cd1e979d8Chris Lattner llvm::Value *EmitComplexToScalarConversion(ComplexPairTy Src, QualType SrcTy, 13624f1a7b380809b4ca19ad2daff61bc11cd1e979d8Chris Lattner QualType DstTy); 13630dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 13640dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1365883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner /// EmitAggExpr - Emit the computation of the specified expression of 1366883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner /// aggregate type. The result is computed into DestPtr. Note that if 1367883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner /// DestPtr is null, the value of the aggregate expression is not needed. 136849d1cd5a09ed3df353371fd7f206674a85e0fb45Mike Stump void EmitAggExpr(const Expr *E, llvm::Value *DestPtr, bool VolatileDest, 136908c321380fff07d476a19daab6d29522c046cd49Fariborz Jahanian bool IgnoreResult = false, bool IsInitializer = false, 137008c321380fff07d476a19daab6d29522c046cd49Fariborz Jahanian bool RequiresGCollection = false); 13710dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 137218aba0dd518e486d8b50523e7dafb4b5657135d2Daniel Dunbar /// EmitAggExprToLValue - Emit the computation of the specified expression of 137318aba0dd518e486d8b50523e7dafb4b5657135d2Daniel Dunbar /// aggregate type into a temporary LValue. 137418aba0dd518e486d8b50523e7dafb4b5657135d2Daniel Dunbar LValue EmitAggExprToLValue(const Expr *E); 137518aba0dd518e486d8b50523e7dafb4b5657135d2Daniel Dunbar 1376082b02e8403d3ee9d2ded969fbe0e5d472f04cd8Fariborz Jahanian /// EmitGCMemmoveCollectable - Emit special API for structs with object 1377082b02e8403d3ee9d2ded969fbe0e5d472f04cd8Fariborz Jahanian /// pointers. 1378082b02e8403d3ee9d2ded969fbe0e5d472f04cd8Fariborz Jahanian void EmitGCMemmoveCollectable(llvm::Value *DestPtr, llvm::Value *SrcPtr, 137908c321380fff07d476a19daab6d29522c046cd49Fariborz Jahanian QualType Ty); 1380082b02e8403d3ee9d2ded969fbe0e5d472f04cd8Fariborz Jahanian 1381b6ef18a2b06d6760459e1756a61f79ff496cee19Chris Lattner /// EmitComplexExpr - Emit the computation of the specified expression of 138223b1cdb0b5e089468bb8475b8ec9287af67b4b59Chris Lattner /// complex type, returning the result. 13837f79f9be5916c51c35da4f126b7c12596a101607Mike Stump ComplexPairTy EmitComplexExpr(const Expr *E, bool IgnoreReal = false, 13847f79f9be5916c51c35da4f126b7c12596a101607Mike Stump bool IgnoreImag = false, 13857f79f9be5916c51c35da4f126b7c12596a101607Mike Stump bool IgnoreRealAssign = false, 13867f79f9be5916c51c35da4f126b7c12596a101607Mike Stump bool IgnoreImagAssign = false); 13870dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 138823b1cdb0b5e089468bb8475b8ec9287af67b4b59Chris Lattner /// EmitComplexExprIntoAddr - Emit the computation of the specified expression 138923b1cdb0b5e089468bb8475b8ec9287af67b4b59Chris Lattner /// of complex type, storing into the specified Value*. 1390190dbe203c2e892ac40f1786035c6c9be3f44a4cChris Lattner void EmitComplexExprIntoAddr(const Expr *E, llvm::Value *DestAddr, 1391190dbe203c2e892ac40f1786035c6c9be3f44a4cChris Lattner bool DestIsVolatile); 13927f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar 13937f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar /// StoreComplexToAddr - Store a complex number into the specified address. 13947f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar void StoreComplexToAddr(ComplexPairTy V, llvm::Value *DestAddr, 13957f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar bool DestIsVolatile); 13969b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// LoadComplexFromAddr - Load a complex number from the specified address. 13979b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner ComplexPairTy LoadComplexFromAddr(llvm::Value *SrcAddr, bool SrcIsVolatile); 13982621fd1d6d3c5eadcae246859f62738645df7540Chris Lattner 1399f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// CreateStaticBlockVarDecl - Create a zero-initialized LLVM global for a 1400f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// static block var decl. 1401761acc19d966a67f2175783d09412d6ac9463400Chris Lattner llvm::GlobalVariable *CreateStaticBlockVarDecl(const VarDecl &D, 1402761acc19d966a67f2175783d09412d6ac9463400Chris Lattner const char *Separator, 1403f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump llvm::GlobalValue::LinkageTypes Linkage); 1404761acc19d966a67f2175783d09412d6ac9463400Chris Lattner 1405761acc19d966a67f2175783d09412d6ac9463400Chris Lattner /// AddInitializerToGlobalBlockVarDecl - Add the initializer for 'D' to the 1406761acc19d966a67f2175783d09412d6ac9463400Chris Lattner /// global variable that has already been created for it. If the initializer 1407761acc19d966a67f2175783d09412d6ac9463400Chris Lattner /// has a different type than GV does, this may free GV and return a different 1408761acc19d966a67f2175783d09412d6ac9463400Chris Lattner /// one. Otherwise it just returns GV. 1409761acc19d966a67f2175783d09412d6ac9463400Chris Lattner llvm::GlobalVariable * 1410761acc19d966a67f2175783d09412d6ac9463400Chris Lattner AddInitializerToGlobalBlockVarDecl(const VarDecl &D, 1411761acc19d966a67f2175783d09412d6ac9463400Chris Lattner llvm::GlobalVariable *GV); 1412761acc19d966a67f2175783d09412d6ac9463400Chris Lattner 14130096acf421c4609ce7f43e8b05f8c5ca866d4611Daniel Dunbar 1414f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// EmitStaticCXXBlockVarDeclInit - Create the initializer for a C++ runtime 1415f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// initialized static block var decl. 14163b2e16b3d25f6b311dba2871e2a566c96238c3d2Anders Carlsson void EmitStaticCXXBlockVarDeclInit(const VarDecl &D, 14173b2e16b3d25f6b311dba2871e2a566c96238c3d2Anders Carlsson llvm::GlobalVariable *GV); 1418e1b29efab32d02e114046d33cca242a88585bf8aAnders Carlsson 14193b2e16b3d25f6b311dba2871e2a566c96238c3d2Anders Carlsson /// EmitCXXGlobalVarDeclInit - Create the initializer for a C++ 14203b2e16b3d25f6b311dba2871e2a566c96238c3d2Anders Carlsson /// variable with global storage. 14213b2e16b3d25f6b311dba2871e2a566c96238c3d2Anders Carlsson void EmitCXXGlobalVarDeclInit(const VarDecl &D, llvm::Constant *DeclPtr); 14223b2e16b3d25f6b311dba2871e2a566c96238c3d2Anders Carlsson 14233b2e16b3d25f6b311dba2871e2a566c96238c3d2Anders Carlsson /// EmitCXXGlobalDtorRegistration - Emits a call to register the global ptr 14243b2e16b3d25f6b311dba2871e2a566c96238c3d2Anders Carlsson /// with the C++ runtime so that its destructor will be called at exit. 142588f4280f6b60edcbdea6a38a3da8b17d66473ad6Fariborz Jahanian void EmitCXXGlobalDtorRegistration(llvm::Constant *DtorFn, 14263b2e16b3d25f6b311dba2871e2a566c96238c3d2Anders Carlsson llvm::Constant *DeclPtr); 14271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1428efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar /// GenerateCXXGlobalInitFunc - Generates code for initializing global 1429efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar /// variables. 1430efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar void GenerateCXXGlobalInitFunc(llvm::Function *Fn, 1431efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar llvm::Constant **Decls, 1432efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar unsigned NumDecls); 1433efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar 1434efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar /// GenerateCXXGlobalDtorFunc - Generates code for destroying global 1435efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar /// variables. 1436efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar void GenerateCXXGlobalDtorFunc(llvm::Function *Fn, 1437810112e28dc839715d17b0a786f23aaa19600ac0Chris Lattner const std::vector<std::pair<llvm::WeakVH, 1438efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar llvm::Constant*> > &DtorsAndObjects); 1439efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar 1440efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar void GenerateCXXGlobalVarDeclInitFunc(llvm::Function *Fn, const VarDecl *D); 1441efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar 144231ccf377f4a676eb6c205b47eef435de616d5e2dAnders Carlsson void EmitCXXConstructExpr(llvm::Value *Dest, const CXXConstructExpr *E); 14431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1444b58d017f2b9eeed33f2ab3ede968b89cf5296bf2Anders Carlsson RValue EmitCXXExprWithTemporaries(const CXXExprWithTemporaries *E, 14451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump llvm::Value *AggLoc = 0, 144614c5cbf59cffee52275230922283a247de407712Anders Carlsson bool IsAggLocVolatile = false, 144714c5cbf59cffee52275230922283a247de407712Anders Carlsson bool IsInitializer = false); 14481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1449756b5c4f9d52642d87d1948bee58f97a4f795b24Anders Carlsson void EmitCXXThrowExpr(const CXXThrowExpr *E); 14501eb2e59338c4b9c0429fc39ca98662adc9e7a3f2Douglas Gregor 14510ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar //===--------------------------------------------------------------------===// 14520ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar // Internal Helpers 14530ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar //===--------------------------------------------------------------------===// 14540dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 14550946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner /// ContainsLabel - Return true if the statement contains a label in it. If 14560946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner /// this statement is not executed normally, it not containing a label means 14570946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner /// that we can just remove the code. 14580946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner static bool ContainsLabel(const Stmt *S, bool IgnoreCaseStmts = false); 14590dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 14604bc0455d826e9634b7a68c0d06146edd633c9453Daniel Dunbar /// ConstantFoldsToSimpleInteger - If the specified expression does not fold 146131a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// to a constant, or if it does but contains a label, return 0. If it 146231a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// constant folds to 'true' and does not contain a label, return 1, if it 146331a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// constant folds to 'false' and does not contain a label, return -1. 146431a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner int ConstantFoldsToSimpleInteger(const Expr *Cond); 14650dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 146631a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// EmitBranchOnBoolExpr - Emit a branch on a boolean condition (e.g. for an 146731a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// if statement) to the specified blocks. Based on the condition, this might 146831a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// try to simplify the codegen of the conditional based on the branch. 14699bc47e29dce8f095be7a6d07dbb02a5a7a112949Chris Lattner void EmitBranchOnBoolExpr(const Expr *Cond, llvm::BasicBlock *TrueBlock, 14704bc0455d826e9634b7a68c0d06146edd633c9453Daniel Dunbar llvm::BasicBlock *FalseBlock); 1471be07f60131bc6f8d6696f4644df1ef667a1730d5Mike Stump 147215037caa1542bb810ad54c653aeb80f61df7b00cMike Stump /// getTrapBB - Create a basic block that will call the trap intrinsic. We'll 147315037caa1542bb810ad54c653aeb80f61df7b00cMike Stump /// generate a branch around the created basic block as necessary. 147415037caa1542bb810ad54c653aeb80f61df7b00cMike Stump llvm::BasicBlock* getTrapBB(); 147521c9ad9d29d08a287292c670e7c52bc522c7f8bbAnders Carlsson 147621c9ad9d29d08a287292c670e7c52bc522c7f8bbAnders Carlsson /// EmitCallArg - Emit a single call argument. 147721c9ad9d29d08a287292c670e7c52bc522c7f8bbAnders Carlsson RValue EmitCallArg(const Expr *E, QualType ArgType); 147821c9ad9d29d08a287292c670e7c52bc522c7f8bbAnders Carlsson 14792736071ea3a46f90e65c93418961611d96c10ab9John McCall /// EmitDelegateCallArg - We are performing a delegate call; that 14802736071ea3a46f90e65c93418961611d96c10ab9John McCall /// is, the current function is delegating to another one. Produce 14812736071ea3a46f90e65c93418961611d96c10ab9John McCall /// a r-value suitable for passing the given parameter. 14822736071ea3a46f90e65c93418961611d96c10ab9John McCall RValue EmitDelegateCallArg(const VarDecl *Param); 14832736071ea3a46f90e65c93418961611d96c10ab9John McCall 148431a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattnerprivate: 148529e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar void EmitReturnOfRValue(RValue RV, QualType Ty); 148629e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar 14875627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// ExpandTypeFromArgs - Reconstruct a structure of type \arg Ty 14885627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// from function arguments into \arg Dst. See ABIArgInfo::Expand. 14895627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// 14905627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// \param AI - The first function argument of the expansion. 14915627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// \return The argument following the last expanded function 14925627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// argument. 14930dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump llvm::Function::arg_iterator 14945627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar ExpandTypeFromArgs(QualType Ty, LValue Dst, 14955627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar llvm::Function::arg_iterator AI); 14965627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar 14970dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// ExpandTypeToArgs - Expand an RValue \arg Src, with the LLVM type for \arg 14980dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// Ty, into individual arguments on the provided vector \arg Args. See 14990dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// ABIArgInfo::Expand. 15000dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump void ExpandTypeToArgs(QualType Ty, RValue Src, 15015627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar llvm::SmallVector<llvm::Value*, 16> &Args); 1502c8c7b187adcd989e01a9fba1ebead6c2abd770c9Anders Carlsson 15031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump llvm::Value* EmitAsmInput(const AsmStmt &S, 1504b84e8a670ad1d00c0a34295c42ac700cdde04815Daniel Dunbar const TargetInfo::ConstraintInfo &Info, 1505c8c7b187adcd989e01a9fba1ebead6c2abd770c9Anders Carlsson const Expr *InputExpr, std::string &ConstraintStr); 15060dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 15070139bb96494b4c4ba0824617d5d2495dc7e44c76Anders Carlsson /// EmitCallArgs - Emit call arguments for a function. 15081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// The CallArgTypeInfo parameter is used for iterating over the known 1509af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson /// argument types of the function being called. 1510af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson template<typename T> 1511af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson void EmitCallArgs(CallArgList& Args, const T* CallArgTypeInfo, 15120139bb96494b4c4ba0824617d5d2495dc7e44c76Anders Carlsson CallExpr::const_arg_iterator ArgBeg, 1513af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson CallExpr::const_arg_iterator ArgEnd) { 1514af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson CallExpr::const_arg_iterator Arg = ArgBeg; 1515af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson 1516af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson // First, use the argument types that the type info knows about 1517af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson if (CallArgTypeInfo) { 1518af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson for (typename T::arg_type_iterator I = CallArgTypeInfo->arg_type_begin(), 1519af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson E = CallArgTypeInfo->arg_type_end(); I != E; ++I, ++Arg) { 152044b0a3e858af7b19f489619e52cd58970611cd15Eli Friedman assert(Arg != ArgEnd && "Running over edge of argument list!"); 1521af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson QualType ArgType = *I; 1522af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson 1523af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson assert(getContext().getCanonicalType(ArgType.getNonReferenceType()). 15241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getTypePtr() == 15251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getContext().getCanonicalType(Arg->getType()).getTypePtr() && 1526af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson "type mismatch in call argument!"); 15271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Args.push_back(std::make_pair(EmitCallArg(*Arg, ArgType), 1529af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson ArgType)); 1530af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson } 15311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Either we've emitted all the call args, or we have a call to a 1533af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson // variadic function. 15341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert((Arg == ArgEnd || CallArgTypeInfo->isVariadic()) && 1535af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson "Extra arguments in non-variadic function!"); 15361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1537af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson } 15381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1539af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson // If we still have any arguments, emit them using the type of the argument. 1540af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson for (; Arg != ArgEnd; ++Arg) { 1541af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson QualType ArgType = Arg->getType(); 1542af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson Args.push_back(std::make_pair(EmitCallArg(*Arg, ArgType), 1543af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson ArgType)); 1544af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson } 1545af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson } 1546492c4f998d848673d3d6c9e6416115df4036a71dJohn McCall 1547492c4f998d848673d3d6c9e6416115df4036a71dJohn McCall const TargetCodeGenInfo &getTargetHooks() const { 1548492c4f998d848673d3d6c9e6416115df4036a71dJohn McCall return CGM.getTargetCodeGenInfo(); 1549492c4f998d848673d3d6c9e6416115df4036a71dJohn McCall } 1550744016dde06fcffd50931e94a98c850f8b12cd87John McCall 1551744016dde06fcffd50931e94a98c850f8b12cd87John McCall void EmitDeclMetadata(); 15525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 15531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1554af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson 15555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace CodeGen 15565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace clang 15575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#endif 1559