CodeGenFunction.h revision 804b807ea918184d6de63bd745e1ff75a9bfc679
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" 2114110477887e3dc168ffc6c191e72d705051f99ePeter Collingbourne#include "clang/Basic/ABI.h" 22481769b5dc102b0256b35581e787909ad5edfab5Chris Lattner#include "clang/Basic/TargetInfo.h" 23481769b5dc102b0256b35581e787909ad5edfab5Chris Lattner#include "llvm/ADT/DenseMap.h" 24481769b5dc102b0256b35581e787909ad5edfab5Chris Lattner#include "llvm/ADT/SmallVector.h" 25481769b5dc102b0256b35581e787909ad5edfab5Chris Lattner#include "llvm/Support/ValueHandle.h" 2669243825cb5c91ec7207256aa57ae327cfaf8cb2Owen Anderson#include "CodeGenModule.h" 2796bd13ae1ab89f5a04b3ad3ec8ec1864cbba3482Mike Stump#include "CGBlocks.h" 2845d196b8387dcefc4df26cda114fa34c6528e928Daniel Dunbar#include "CGBuilder.h" 290dbe227feccf6a8dbadfff8ca3f80416b7bf2f28Daniel Dunbar#include "CGCall.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 { 448d308384a220c7dc81755c47cdcbdd87dac25d5bDevang Patel class APValue; 455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class ASTContext; 467267c1693abe7875b0c57268be05005ae013c6c9Anders Carlsson class CXXDestructorDecl; 476815e941998659a55c20c147861b0f437928c3d8Anders Carlsson class CXXTryStmt; 485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class Decl; 49c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class EnumConstantDecl; 505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class FunctionDecl; 5172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor class FunctionProtoType; 52c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class LabelStmt; 53679a502d462ef819e6175b58e255ca3f3391e7cfFariborz Jahanian class ObjCContainerDecl; 5429e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar class ObjCInterfaceDecl; 5529e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar class ObjCIvarDecl; 56391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner class ObjCMethodDecl; 57fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian class ObjCImplementationDecl; 58af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar class ObjCPropertyImplDecl; 595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class TargetInfo; 60492c4f998d848673d3d6c9e6416115df4036a71dJohn McCall class TargetCodeGenInfo; 61c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class VarDecl; 6216f0049415ec596504891259e2a83e19871c0d52Chris Lattner class ObjCForCollectionStmt; 6316f0049415ec596504891259e2a83e19871c0d52Chris Lattner class ObjCAtTryStmt; 6416f0049415ec596504891259e2a83e19871c0d52Chris Lattner class ObjCAtThrowStmt; 6516f0049415ec596504891259e2a83e19871c0d52Chris Lattner class ObjCAtSynchronizedStmt; 665549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek 675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace CodeGen { 68b84a06e68ffd71da22e3c75b6e4bbdba37816413Devang Patel class CodeGenTypes; 69e896d98548b02223c7740d807a0aa6e20fba7079Anders Carlsson class CGDebugInfo; 70bb36d331f439f49859efcfb4435c61762fbba6f9Daniel Dunbar class CGFunctionInfo; 710dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump class CGRecordLayout; 72ee5042903d53fa7b0fbc1902d0ea07d57c7775b1John McCall class CGBlockInfo; 734c40d98ab7acf5f27fa89b17bd8fc0ef7683df37John McCall class CGCXXABI; 740dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 75f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall/// A branch fixup. These are required when emitting a goto to a 76f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall/// label which hasn't been emitted yet. The goto is optimistically 77f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall/// emitted as a branch to the basic block for the label, and (if it 78f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall/// occurs in a scope with non-trivial cleanups) a fixup is added to 79f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall/// the innermost cleanup. When a (normal) cleanup is popped, any 80f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall/// unresolved fixups in that scope are threaded through the cleanup. 81f1549f66a8216a78112286e3978cea2c29d6334cJohn McCallstruct BranchFixup { 82ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall /// The block containing the terminator which needs to be modified 83ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall /// into a switch if this fixup is resolved into the current scope. 84ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall /// If null, LatestBranch points directly to the destination. 85ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall llvm::BasicBlock *OptimisticBranchBlock; 86f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 87ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall /// The ultimate destination of the branch. 88f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// 89f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// This can be set to null to indicate that this fixup was 90f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// successfully resolved. 91f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *Destination; 92f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 93ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall /// The destination index value. 94ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall unsigned DestinationIndex; 95ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall 96ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall /// The initial branch of the fixup. 97ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall llvm::BranchInst *InitialBranch; 98f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall}; 99f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 100804b807ea918184d6de63bd745e1ff75a9bfc679John McCalltemplate <class T> struct InvariantValue { 101150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall typedef T type; 102150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall typedef T saved_type; 103150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall static bool needsSaving(type value) { return false; } 104150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall static saved_type save(CodeGenFunction &CGF, type value) { return value; } 105150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall static type restore(CodeGenFunction &CGF, saved_type value) { return value; } 106150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall}; 107804b807ea918184d6de63bd745e1ff75a9bfc679John McCall 108804b807ea918184d6de63bd745e1ff75a9bfc679John McCall/// A metaprogramming class for ensuring that a value will dominate an 109804b807ea918184d6de63bd745e1ff75a9bfc679John McCall/// arbitrary position in a function. 110804b807ea918184d6de63bd745e1ff75a9bfc679John McCalltemplate <class T> struct DominatingValue : InvariantValue<T> {}; 111804b807ea918184d6de63bd745e1ff75a9bfc679John McCall 112804b807ea918184d6de63bd745e1ff75a9bfc679John McCalltemplate <class T, bool mightBeInstruction = 113804b807ea918184d6de63bd745e1ff75a9bfc679John McCall llvm::is_base_of<llvm::Value, T>::value && 114804b807ea918184d6de63bd745e1ff75a9bfc679John McCall !llvm::is_base_of<llvm::Constant, T>::value && 115804b807ea918184d6de63bd745e1ff75a9bfc679John McCall !llvm::is_base_of<llvm::BasicBlock, T>::value> 116804b807ea918184d6de63bd745e1ff75a9bfc679John McCallstruct DominatingPointer; 117804b807ea918184d6de63bd745e1ff75a9bfc679John McCalltemplate <class T> struct DominatingPointer<T,false> : InvariantValue<T*> {}; 118804b807ea918184d6de63bd745e1ff75a9bfc679John McCall// template <class T> struct DominatingPointer<T,true> at end of file 119804b807ea918184d6de63bd745e1ff75a9bfc679John McCall 120804b807ea918184d6de63bd745e1ff75a9bfc679John McCalltemplate <class T> struct DominatingValue<T*> : DominatingPointer<T> {}; 121150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 122cd2d2b7814e0104ed41a8da159a06a8ca77b70d8John McCallenum CleanupKind { 123cd2d2b7814e0104ed41a8da159a06a8ca77b70d8John McCall EHCleanup = 0x1, 124cd2d2b7814e0104ed41a8da159a06a8ca77b70d8John McCall NormalCleanup = 0x2, 125cd2d2b7814e0104ed41a8da159a06a8ca77b70d8John McCall NormalAndEHCleanup = EHCleanup | NormalCleanup, 126cd2d2b7814e0104ed41a8da159a06a8ca77b70d8John McCall 127cd2d2b7814e0104ed41a8da159a06a8ca77b70d8John McCall InactiveCleanup = 0x4, 128cd2d2b7814e0104ed41a8da159a06a8ca77b70d8John McCall InactiveEHCleanup = EHCleanup | InactiveCleanup, 129cd2d2b7814e0104ed41a8da159a06a8ca77b70d8John McCall InactiveNormalCleanup = NormalCleanup | InactiveCleanup, 130cd2d2b7814e0104ed41a8da159a06a8ca77b70d8John McCall InactiveNormalAndEHCleanup = NormalAndEHCleanup | InactiveCleanup 131cd2d2b7814e0104ed41a8da159a06a8ca77b70d8John McCall}; 132da65ea86482bc116906edfb9ba1d7124f76cc867John McCall 133f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall/// A stack of scopes which respond to exceptions, including cleanups 134f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall/// and catch blocks. 135f1549f66a8216a78112286e3978cea2c29d6334cJohn McCallclass EHScopeStack { 136f1549f66a8216a78112286e3978cea2c29d6334cJohn McCallpublic: 137f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// A saved depth on the scope stack. This is necessary because 138f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// pushing scopes onto the stack invalidates iterators. 139f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall class stable_iterator { 140f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall friend class EHScopeStack; 141f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 142f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Offset from StartOfData to EndOfBuffer. 143f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall ptrdiff_t Size; 144f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 145f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall stable_iterator(ptrdiff_t Size) : Size(Size) {} 146f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 147f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall public: 148f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall static stable_iterator invalid() { return stable_iterator(-1); } 149f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall stable_iterator() : Size(-1) {} 150f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 151f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall bool isValid() const { return Size >= 0; } 152f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 153838d796d020f6a8cd2b2d1e2a0a85c83bbf29543John McCall /// Returns true if this scope encloses I. 154838d796d020f6a8cd2b2d1e2a0a85c83bbf29543John McCall /// Returns false if I is invalid. 155838d796d020f6a8cd2b2d1e2a0a85c83bbf29543John McCall /// This scope must be valid. 156ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall bool encloses(stable_iterator I) const { return Size <= I.Size; } 157838d796d020f6a8cd2b2d1e2a0a85c83bbf29543John McCall 158838d796d020f6a8cd2b2d1e2a0a85c83bbf29543John McCall /// Returns true if this scope strictly encloses I: that is, 159838d796d020f6a8cd2b2d1e2a0a85c83bbf29543John McCall /// if it encloses I and is not I. 160838d796d020f6a8cd2b2d1e2a0a85c83bbf29543John McCall /// Returns false is I is invalid. 161838d796d020f6a8cd2b2d1e2a0a85c83bbf29543John McCall /// This scope must be valid. 162ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall bool strictlyEncloses(stable_iterator I) const { return Size < I.Size; } 1631bda662cb37d9fe24be4b3cf8ea0f4e550e1f889John McCall 164f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall friend bool operator==(stable_iterator A, stable_iterator B) { 165f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return A.Size == B.Size; 166f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 167f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall friend bool operator!=(stable_iterator A, stable_iterator B) { 168f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return A.Size != B.Size; 169f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 170f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall }; 171f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 1721f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall /// Information for lazily generating a cleanup. Subclasses must be 1731f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall /// POD-like: cleanups will not be destructed, and they will be 1741f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall /// allocated on the cleanup stack and freely copied and moved 1751f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall /// around. 176da65ea86482bc116906edfb9ba1d7124f76cc867John McCall /// 1771f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall /// Cleanup implementations should generally be declared in an 178da65ea86482bc116906edfb9ba1d7124f76cc867John McCall /// anonymous namespace. 1791f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall class Cleanup { 180da65ea86482bc116906edfb9ba1d7124f76cc867John McCall public: 1813e29f96988b0438e42dba3790f61fb3df42d90cbJohn McCall // Anchor the construction vtable. We use the destructor because 1823e29f96988b0438e42dba3790f61fb3df42d90cbJohn McCall // gcc gives an obnoxious warning if there are virtual methods 1833e29f96988b0438e42dba3790f61fb3df42d90cbJohn McCall // with an accessible non-virtual destructor. Unfortunately, 1843e29f96988b0438e42dba3790f61fb3df42d90cbJohn McCall // declaring this destructor makes it non-trivial, but there 1853e29f96988b0438e42dba3790f61fb3df42d90cbJohn McCall // doesn't seem to be any other way around this warning. 1863e29f96988b0438e42dba3790f61fb3df42d90cbJohn McCall // 1873e29f96988b0438e42dba3790f61fb3df42d90cbJohn McCall // This destructor will never be called. 1881f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall virtual ~Cleanup(); 1893e29f96988b0438e42dba3790f61fb3df42d90cbJohn McCall 190da65ea86482bc116906edfb9ba1d7124f76cc867John McCall /// Emit the cleanup. For normal cleanups, this is run in the 191da65ea86482bc116906edfb9ba1d7124f76cc867John McCall /// same EH context as when the cleanup was pushed, i.e. the 192da65ea86482bc116906edfb9ba1d7124f76cc867John McCall /// immediately-enclosing context of the cleanup scope. For 193da65ea86482bc116906edfb9ba1d7124f76cc867John McCall /// EH cleanups, this is run in a terminate context. 194da65ea86482bc116906edfb9ba1d7124f76cc867John McCall /// 195da65ea86482bc116906edfb9ba1d7124f76cc867John McCall // \param IsForEHCleanup true if this is for an EH cleanup, false 196da65ea86482bc116906edfb9ba1d7124f76cc867John McCall /// if for a normal cleanup. 197da65ea86482bc116906edfb9ba1d7124f76cc867John McCall virtual void Emit(CodeGenFunction &CGF, bool IsForEHCleanup) = 0; 198da65ea86482bc116906edfb9ba1d7124f76cc867John McCall }; 199da65ea86482bc116906edfb9ba1d7124f76cc867John McCall 2003ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall /// UnconditionalCleanupN stores its N parameters and just passes 2013ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall /// them to the real cleanup function. 2023ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall template <class T, class A0> 2033ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall class UnconditionalCleanup1 : public Cleanup { 2043ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall A0 a0; 205150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall public: 2063ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall UnconditionalCleanup1(A0 a0) : a0(a0) {} 2073ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall void Emit(CodeGenFunction &CGF, bool IsForEHCleanup) { 2083ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall T::Emit(CGF, IsForEHCleanup, a0); 2093ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall } 210150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall }; 211150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 212150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall template <class T, class A0, class A1> 213150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall class UnconditionalCleanup2 : public Cleanup { 214150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall A0 a0; A1 a1; 2154bbcbda302cba8b1b0d88c20d735d09b483bd005John McCall public: 216150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall UnconditionalCleanup2(A0 a0, A1 a1) : a0(a0), a1(a1) {} 217150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall void Emit(CodeGenFunction &CGF, bool IsForEHCleanup) { 218150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall T::Emit(CGF, IsForEHCleanup, a0, a1); 219150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 220150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall }; 221150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 222150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// ConditionalCleanupN stores the saved form of its N parameters, 223150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// then restores them and performs the cleanup. 2243ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall template <class T, class A0> 2253ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall class ConditionalCleanup1 : public Cleanup { 226804b807ea918184d6de63bd745e1ff75a9bfc679John McCall typedef typename DominatingValue<A0>::saved_type A0_saved; 2273ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall A0_saved a0_saved; 2283ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall 2293ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall void Emit(CodeGenFunction &CGF, bool IsForEHCleanup) { 230804b807ea918184d6de63bd745e1ff75a9bfc679John McCall A0 a0 = DominatingValue<A0>::restore(CGF, a0_saved); 2313ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall T::Emit(CGF, IsForEHCleanup, a0); 2323ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall } 2333ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall 2343ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall public: 2353ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall ConditionalCleanup1(A0_saved a0) 2363ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall : a0_saved(a0) {} 2373ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall }; 2383ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall 239150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall template <class T, class A0, class A1> 2403ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall class ConditionalCleanup2 : public Cleanup { 241804b807ea918184d6de63bd745e1ff75a9bfc679John McCall typedef typename DominatingValue<A0>::saved_type A0_saved; 242804b807ea918184d6de63bd745e1ff75a9bfc679John McCall typedef typename DominatingValue<A1>::saved_type A1_saved; 2434bbcbda302cba8b1b0d88c20d735d09b483bd005John McCall A0_saved a0_saved; 2444bbcbda302cba8b1b0d88c20d735d09b483bd005John McCall A1_saved a1_saved; 245150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 2463ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall void Emit(CodeGenFunction &CGF, bool IsForEHCleanup) { 247804b807ea918184d6de63bd745e1ff75a9bfc679John McCall A0 a0 = DominatingValue<A0>::restore(CGF, a0_saved); 248804b807ea918184d6de63bd745e1ff75a9bfc679John McCall A1 a1 = DominatingValue<A1>::restore(CGF, a1_saved); 249150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall T::Emit(CGF, IsForEHCleanup, a0, a1); 250150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 251150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 252150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall public: 2533ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall ConditionalCleanup2(A0_saved a0, A1_saved a1) 2543ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall : a0_saved(a0), a1_saved(a1) {} 255150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall }; 256150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 257f1549f66a8216a78112286e3978cea2c29d6334cJohn McCallprivate: 258f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall // The implementation for this class is in CGException.h and 259f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall // CGException.cpp; the definition is here because it's used as a 260f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall // member of CodeGenFunction. 261f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 262f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// The start of the scope-stack buffer, i.e. the allocated pointer 263f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// for the buffer. All of these pointers are either simultaneously 264f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// null or simultaneously valid. 265f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall char *StartOfBuffer; 266f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 267f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// The end of the buffer. 268f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall char *EndOfBuffer; 269f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 270f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// The first valid entry in the buffer. 271f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall char *StartOfData; 272f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 273f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// The innermost normal cleanup on the stack. 274f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall stable_iterator InnermostNormalCleanup; 275f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 276f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// The innermost EH cleanup on the stack. 277f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall stable_iterator InnermostEHCleanup; 278f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 279f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// The number of catches on the stack. 280f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall unsigned CatchDepth; 281f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 282ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall /// The current EH destination index. Reset to FirstCatchIndex 283ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall /// whenever the last EH cleanup is popped. 284ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall unsigned NextEHDestIndex; 285ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall enum { FirstEHDestIndex = 1 }; 286ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall 287f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// The current set of branch fixups. A branch fixup is a jump to 288f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// an as-yet unemitted label, i.e. a label for which we don't yet 289f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// know the EH stack depth. Whenever we pop a cleanup, we have 290f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// to thread all the current branch fixups through it. 291f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// 292f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Fixups are recorded as the Use of the respective branch or 293f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// switch statement. The use points to the final destination. 294f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// When popping out of a cleanup, these uses are threaded through 295f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// the cleanup and adjusted to point to the new cleanup. 296f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// 297f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Note that branches are allowed to jump into protected scopes 298f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// in certain situations; e.g. the following code is legal: 299f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// struct A { ~A(); }; // trivial ctor, non-trivial dtor 300f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// goto foo; 301f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// A a; 302f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// foo: 303f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// bar(); 304f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::SmallVector<BranchFixup, 8> BranchFixups; 305f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 306f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall char *allocate(size_t Size); 307f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 3081f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall void *pushCleanup(CleanupKind K, size_t DataSize); 309da65ea86482bc116906edfb9ba1d7124f76cc867John McCall 310f1549f66a8216a78112286e3978cea2c29d6334cJohn McCallpublic: 311f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall EHScopeStack() : StartOfBuffer(0), EndOfBuffer(0), StartOfData(0), 312f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall InnermostNormalCleanup(stable_end()), 313f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall InnermostEHCleanup(stable_end()), 314ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall CatchDepth(0), NextEHDestIndex(FirstEHDestIndex) {} 315f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall ~EHScopeStack() { delete[] StartOfBuffer; } 316f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 317da65ea86482bc116906edfb9ba1d7124f76cc867John McCall // Variadic templates would make this not terrible. 318da65ea86482bc116906edfb9ba1d7124f76cc867John McCall 319da65ea86482bc116906edfb9ba1d7124f76cc867John McCall /// Push a lazily-created cleanup on the stack. 3208e3f86193995c47ee0d229e4336c3382410f09f5John McCall template <class T> 3211f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall void pushCleanup(CleanupKind Kind) { 3221f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall void *Buffer = pushCleanup(Kind, sizeof(T)); 3231f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall Cleanup *Obj = new(Buffer) T(); 3248e3f86193995c47ee0d229e4336c3382410f09f5John McCall (void) Obj; 3258e3f86193995c47ee0d229e4336c3382410f09f5John McCall } 3268e3f86193995c47ee0d229e4336c3382410f09f5John McCall 3278e3f86193995c47ee0d229e4336c3382410f09f5John McCall /// Push a lazily-created cleanup on the stack. 3288e3f86193995c47ee0d229e4336c3382410f09f5John McCall template <class T, class A0> 3291f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall void pushCleanup(CleanupKind Kind, A0 a0) { 3301f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall void *Buffer = pushCleanup(Kind, sizeof(T)); 3311f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall Cleanup *Obj = new(Buffer) T(a0); 3328e3f86193995c47ee0d229e4336c3382410f09f5John McCall (void) Obj; 3338e3f86193995c47ee0d229e4336c3382410f09f5John McCall } 3348e3f86193995c47ee0d229e4336c3382410f09f5John McCall 3358e3f86193995c47ee0d229e4336c3382410f09f5John McCall /// Push a lazily-created cleanup on the stack. 336da65ea86482bc116906edfb9ba1d7124f76cc867John McCall template <class T, class A0, class A1> 3371f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall void pushCleanup(CleanupKind Kind, A0 a0, A1 a1) { 3381f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall void *Buffer = pushCleanup(Kind, sizeof(T)); 3391f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall Cleanup *Obj = new(Buffer) T(a0, a1); 340da65ea86482bc116906edfb9ba1d7124f76cc867John McCall (void) Obj; 341da65ea86482bc116906edfb9ba1d7124f76cc867John McCall } 342da65ea86482bc116906edfb9ba1d7124f76cc867John McCall 343da65ea86482bc116906edfb9ba1d7124f76cc867John McCall /// Push a lazily-created cleanup on the stack. 344da65ea86482bc116906edfb9ba1d7124f76cc867John McCall template <class T, class A0, class A1, class A2> 3451f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall void pushCleanup(CleanupKind Kind, A0 a0, A1 a1, A2 a2) { 3461f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall void *Buffer = pushCleanup(Kind, sizeof(T)); 3471f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall Cleanup *Obj = new(Buffer) T(a0, a1, a2); 348da65ea86482bc116906edfb9ba1d7124f76cc867John McCall (void) Obj; 349da65ea86482bc116906edfb9ba1d7124f76cc867John McCall } 350da65ea86482bc116906edfb9ba1d7124f76cc867John McCall 351da65ea86482bc116906edfb9ba1d7124f76cc867John McCall /// Push a lazily-created cleanup on the stack. 352da65ea86482bc116906edfb9ba1d7124f76cc867John McCall template <class T, class A0, class A1, class A2, class A3> 3531f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall void pushCleanup(CleanupKind Kind, A0 a0, A1 a1, A2 a2, A3 a3) { 3541f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall void *Buffer = pushCleanup(Kind, sizeof(T)); 3551f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall Cleanup *Obj = new(Buffer) T(a0, a1, a2, a3); 356da65ea86482bc116906edfb9ba1d7124f76cc867John McCall (void) Obj; 357da65ea86482bc116906edfb9ba1d7124f76cc867John McCall } 358da65ea86482bc116906edfb9ba1d7124f76cc867John McCall 35977199713ab56f87ffad9a535ff2a0877704eed87John McCall /// Push a lazily-created cleanup on the stack. 36077199713ab56f87ffad9a535ff2a0877704eed87John McCall template <class T, class A0, class A1, class A2, class A3, class A4> 3611f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall void pushCleanup(CleanupKind Kind, A0 a0, A1 a1, A2 a2, A3 a3, A4 a4) { 3621f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall void *Buffer = pushCleanup(Kind, sizeof(T)); 3631f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall Cleanup *Obj = new(Buffer) T(a0, a1, a2, a3, a4); 36477199713ab56f87ffad9a535ff2a0877704eed87John McCall (void) Obj; 36577199713ab56f87ffad9a535ff2a0877704eed87John McCall } 36677199713ab56f87ffad9a535ff2a0877704eed87John McCall 3677d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall // Feel free to add more variants of the following: 3687d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall 3697d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// Push a cleanup with non-constant storage requirements on the 3707d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// stack. The cleanup type must provide an additional static method: 3717d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// static size_t getExtraSize(size_t); 3727d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// The argument to this method will be the value N, which will also 3737d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// be passed as the first argument to the constructor. 3747d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// 3757d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// The data stored in the extra storage must obey the same 3767d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// restrictions as normal cleanup member data. 3777d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// 3787d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// The pointer returned from this method is valid until the cleanup 3797d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// stack is modified. 3807d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall template <class T, class A0, class A1, class A2> 3817d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall T *pushCleanupWithExtra(CleanupKind Kind, size_t N, A0 a0, A1 a1, A2 a2) { 3827d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall void *Buffer = pushCleanup(Kind, sizeof(T) + T::getExtraSize(N)); 3837d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall return new (Buffer) T(N, a0, a1, a2); 3847d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall } 3857d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall 386f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Pops a cleanup scope off the stack. This should only be called 387f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// by CodeGenFunction::PopCleanupBlock. 388f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall void popCleanup(); 389f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 390f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Push a set of catch handlers on the stack. The catch is 391f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// uninitialized and will need to have the given number of handlers 392f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// set on it. 393f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall class EHCatchScope *pushCatch(unsigned NumHandlers); 394f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 395f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Pops a catch scope off the stack. 396f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall void popCatch(); 397f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 398f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Push an exceptions filter on the stack. 399f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall class EHFilterScope *pushFilter(unsigned NumFilters); 400f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 401f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Pops an exceptions filter off the stack. 402f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall void popFilter(); 403f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 404f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Push a terminate handler on the stack. 405f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall void pushTerminate(); 406f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 407f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Pops a terminate handler off the stack. 408f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall void popTerminate(); 409f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 410f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Determines whether the exception-scopes stack is empty. 411f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall bool empty() const { return StartOfData == EndOfBuffer; } 412f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 413f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall bool requiresLandingPad() const { 414f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return (CatchDepth || hasEHCleanups()); 415f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 416f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 417f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Determines whether there are any normal cleanups on the stack. 418f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall bool hasNormalCleanups() const { 419f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return InnermostNormalCleanup != stable_end(); 420f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 421f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 422f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Returns the innermost normal cleanup on the stack, or 423f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// stable_end() if there are no normal cleanups. 424f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall stable_iterator getInnermostNormalCleanup() const { 425f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return InnermostNormalCleanup; 426f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 427838d796d020f6a8cd2b2d1e2a0a85c83bbf29543John McCall stable_iterator getInnermostActiveNormalCleanup() const; // CGException.h 428f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 429f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Determines whether there are any EH cleanups on the stack. 430f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall bool hasEHCleanups() const { 431f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return InnermostEHCleanup != stable_end(); 432f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 433f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 434f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Returns the innermost EH cleanup on the stack, or stable_end() 435f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// if there are no EH cleanups. 436f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall stable_iterator getInnermostEHCleanup() const { 437f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return InnermostEHCleanup; 438f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 439838d796d020f6a8cd2b2d1e2a0a85c83bbf29543John McCall stable_iterator getInnermostActiveEHCleanup() const; // CGException.h 440f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 441f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// An unstable reference to a scope-stack depth. Invalidated by 442f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// pushes but not pops. 443f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall class iterator; 444f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 445f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Returns an iterator pointing to the innermost EH scope. 446f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall iterator begin() const; 447f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 448f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Returns an iterator pointing to the outermost EH scope. 449f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall iterator end() const; 450f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 451f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Create a stable reference to the top of the EH stack. The 452f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// returned reference is valid until that scope is popped off the 453f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// stack. 454f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall stable_iterator stable_begin() const { 455f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return stable_iterator(EndOfBuffer - StartOfData); 456f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 457f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 458f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Create a stable reference to the bottom of the EH stack. 459f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall static stable_iterator stable_end() { 460f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return stable_iterator(0); 461f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 462f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 463f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Translates an iterator into a stable_iterator. 464f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall stable_iterator stabilize(iterator it) const; 465f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 466f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Finds the nearest cleanup enclosing the given iterator. 467f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Returns stable_iterator::invalid() if there are no such cleanups. 468f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall stable_iterator getEnclosingEHCleanup(iterator it) const; 469f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 470f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Turn a stable reference to a scope depth into a unstable pointer 471f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// to the EH stack. 472f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall iterator find(stable_iterator save) const; 473f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 474f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Removes the cleanup pointed to by the given stable_iterator. 475f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall void removeCleanup(stable_iterator save); 476f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 477f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Add a branch fixup to the current cleanup scope. 478f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall BranchFixup &addBranchFixup() { 479f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall assert(hasNormalCleanups() && "adding fixup in scope without cleanups"); 480f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall BranchFixups.push_back(BranchFixup()); 481f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return BranchFixups.back(); 482f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 483f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 484f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall unsigned getNumBranchFixups() const { return BranchFixups.size(); } 485f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall BranchFixup &getBranchFixup(unsigned I) { 486f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall assert(I < getNumBranchFixups()); 487f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return BranchFixups[I]; 488f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 489f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 490ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall /// Pops lazily-removed fixups from the end of the list. This 491ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall /// should only be called by procedures which have just popped a 492ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall /// cleanup or resolved one or more fixups. 493ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall void popNullFixups(); 494ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall 495ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall /// Clears the branch-fixups list. This should only be called by 4968abdbd8118e37e759d1ce3f5814ee0a24b1589e8John McCall /// ResolveAllBranchFixups. 497ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall void clearFixups() { BranchFixups.clear(); } 498ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall 499ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall /// Gets the next EH destination index. 500ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall unsigned getNextEHDestIndex() { return NextEHDestIndex++; } 501f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall}; 502f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 5035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// CodeGenFunction - This class organizes the per-function state that is used 5045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// while generating LLVM code. 5052a998148a6823c44d67da347c95eb2ea21f6b986Mike Stumpclass CodeGenFunction : public BlockFunction { 5068a219ceda2b5afd447e7199b9c53079bead31b89Anders Carlsson CodeGenFunction(const CodeGenFunction&); // DO NOT IMPLEMENT 5078a219ceda2b5afd447e7199b9c53079bead31b89Anders Carlsson void operator=(const CodeGenFunction&); // DO NOT IMPLEMENT 5084c40d98ab7acf5f27fa89b17bd8fc0ef7683df37John McCall 5094c40d98ab7acf5f27fa89b17bd8fc0ef7683df37John McCall friend class CGCXXABI; 510bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattnerpublic: 511ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall /// A jump destination is an abstract label, branching to which may 512ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall /// require a jump out through normal cleanups. 513f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall struct JumpDest { 514ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall JumpDest() : Block(0), ScopeDepth(), Index(0) {} 515ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall JumpDest(llvm::BasicBlock *Block, 516ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall EHScopeStack::stable_iterator Depth, 517ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall unsigned Index) 518ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall : Block(Block), ScopeDepth(Depth), Index(Index) {} 519ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall 520ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall bool isValid() const { return Block != 0; } 521ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall llvm::BasicBlock *getBlock() const { return Block; } 522ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall EHScopeStack::stable_iterator getScopeDepth() const { return ScopeDepth; } 523ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall unsigned getDestIndex() const { return Index; } 5249cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 525ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall private: 526f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *Block; 527f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall EHScopeStack::stable_iterator ScopeDepth; 528ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall unsigned Index; 529ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall }; 530ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall 531ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall /// An unwind destination is an abstract label, branching to which 532ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall /// may require a jump out through EH cleanups. 533ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall struct UnwindDest { 534ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall UnwindDest() : Block(0), ScopeDepth(), Index(0) {} 535ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall UnwindDest(llvm::BasicBlock *Block, 536ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall EHScopeStack::stable_iterator Depth, 537ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall unsigned Index) 538ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall : Block(Block), ScopeDepth(Depth), Index(Index) {} 539ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall 540ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall bool isValid() const { return Block != 0; } 541ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall llvm::BasicBlock *getBlock() const { return Block; } 542ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall EHScopeStack::stable_iterator getScopeDepth() const { return ScopeDepth; } 543ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall unsigned getDestIndex() const { return Index; } 544ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall 545ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall private: 546ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall llvm::BasicBlock *Block; 547ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall EHScopeStack::stable_iterator ScopeDepth; 548ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall unsigned Index; 549f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall }; 550f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 5515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CodeGenModule &CGM; // Per-module state. 552444be7366d0a1e172c0290a1ea54c1cb16b5947cDaniel Dunbar const TargetInfo &Target; 5530dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 55458dee10ed2eee34035f62d1c2d32b3639e9182f8Chris Lattner typedef std::pair<llvm::Value *, llvm::Value *> ComplexPairTy; 55545d196b8387dcefc4df26cda114fa34c6528e928Daniel Dunbar CGBuilderTy Builder; 5560dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 557b5437d238752dc297e42410e98d38d5250fe0463Chris Lattner /// CurFuncDecl - Holds the Decl for the current function or ObjC method. 558b5437d238752dc297e42410e98d38d5250fe0463Chris Lattner /// This excludes BlockDecls. 5594111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner const Decl *CurFuncDecl; 560b5437d238752dc297e42410e98d38d5250fe0463Chris Lattner /// CurCodeDecl - This is the inner-most code context, which includes blocks. 561b5437d238752dc297e42410e98d38d5250fe0463Chris Lattner const Decl *CurCodeDecl; 56288b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar const CGFunctionInfo *CurFnInfo; 563391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner QualType FnRetTy; 5645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::Function *CurFn; 5655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5666a1e0eb557d47e85185e09bdf8721f53f4bf9c9cMike Stump /// CurGD - The GlobalDecl for the current function being compiled. 5676a1e0eb557d47e85185e09bdf8721f53f4bf9c9cMike Stump GlobalDecl CurGD; 5686a1e0eb557d47e85185e09bdf8721f53f4bf9c9cMike Stump 5695ca2084cf9b529563209429857f01fdae9dcdfa5Daniel Dunbar /// ReturnBlock - Unified return block. 570f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall JumpDest ReturnBlock; 571f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 5720dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// ReturnValue - The temporary alloca to hold the return value. This is null 5730dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// iff the function has no return value. 574b17daf9ab790ae71aacad2cc4aa11cd8d86c25d1Eli Friedman llvm::Value *ReturnValue; 5750dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 576ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall /// RethrowBlock - Unified rethrow block. 577ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall UnwindDest RethrowBlock; 578ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall 5795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// AllocaInsertPoint - This is an instruction in the entry block before which 5805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// we prefer to insert allocas. 581481769b5dc102b0256b35581e787909ad5edfab5Chris Lattner llvm::AssertingVH<llvm::Instruction> AllocaInsertPt; 5820ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar 58377b89b87c3b9220fea1bc80f6d6598d2003cc8a8Chris Lattner // intptr_t, i32, i64 58477b89b87c3b9220fea1bc80f6d6598d2003cc8a8Chris Lattner const llvm::IntegerType *IntPtrTy, *Int32Ty, *Int64Ty; 5857b66000bdfc2684351fb03208e672f23012ed569Hartmut Kaiser uint32_t LLVMPointerWidth; 58618ccc7776ad6288c5f630dc7967fb99d099c9cd9Daniel Dunbar 587d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump bool Exceptions; 5889c276ae0f24d4cee8f7954069d4b8eae45d0447dMike Stump bool CatchUndefined; 5899cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 5903d91bbcdab155181556969cad6ec97014405acedDouglas Gregor /// \brief A mapping from NRVO variables to the flags used to indicate 5913d91bbcdab155181556969cad6ec97014405acedDouglas Gregor /// when the NRVO has been applied to this variable. 5923d91bbcdab155181556969cad6ec97014405acedDouglas Gregor llvm::DenseMap<const VarDecl *, llvm::Value *> NRVOFlags; 5939cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 594af9b96828f9126d993c3e155b8453be62013b735Fariborz Jahanian /// \brief A mapping from 'Save' expression in a conditional expression 595af9b96828f9126d993c3e155b8453be62013b735Fariborz Jahanian /// to the IR for this expression. Used to implement IR gen. for Gnu 596af9b96828f9126d993c3e155b8453be62013b735Fariborz Jahanian /// extension's missing LHS expression in a conditional operator expression. 597af9b96828f9126d993c3e155b8453be62013b735Fariborz Jahanian llvm::DenseMap<const Expr *, llvm::Value *> ConditionalSaveExprs; 598aa3b57ee9e36a805371e2a543383225cdd2a5d83Fariborz Jahanian llvm::DenseMap<const Expr *, ComplexPairTy> ConditionalSaveComplexExprs; 5990b78710636671eeb2c5c4dedffa4ad1d58fa4bb8Fariborz Jahanian llvm::DenseMap<const Expr *, LValue> ConditionalSaveLValueExprs; 6000dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 601f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall EHScopeStack EHStack; 6020dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 603ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall /// i32s containing the indexes of the cleanup destinations. 604ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall llvm::AllocaInst *NormalCleanupDest; 605ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall llvm::AllocaInst *EHCleanupDest; 606ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall 607ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall unsigned NextCleanupDestIndex; 608ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall 609f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// The exception slot. All landing pads write the current 610f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// exception pointer into this alloca. 611f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::Value *ExceptionSlot; 6120dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 613f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Emits a landing pad for the current EH stack. 614f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *EmitLandingPad(); 6150dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 616f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *getInvokeDestImpl(); 61799533834ba8f3658559f334e68a518ebb6388ceaMike Stump 6183ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall /// Set up the last cleaup that was pushed as a conditional 6193ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall /// full-expression cleanup. 6203ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall void initFullExprCleanup(); 621150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 622150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall template <class T> 623804b807ea918184d6de63bd745e1ff75a9bfc679John McCall typename DominatingValue<T>::saved_type saveValueInCond(T value) { 624804b807ea918184d6de63bd745e1ff75a9bfc679John McCall return DominatingValue<T>::save(*this, value); 625150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 626150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 627f1549f66a8216a78112286e3978cea2c29d6334cJohn McCallpublic: 628f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// ObjCEHValueStack - Stack of Objective-C exception values, used for 629f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// rethrows. 630f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::SmallVector<llvm::Value*, 8> ObjCEHValueStack; 631bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson 632f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall // A struct holding information about a finally block's IR 633f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall // generation. For now, doesn't actually hold anything. 634f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall struct FinallyInfo { 635d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump }; 636d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump 637f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall FinallyInfo EnterFinallyBlock(const Stmt *Stmt, 638f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::Constant *BeginCatchFn, 639f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::Constant *EndCatchFn, 640f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::Constant *RethrowFn); 641f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall void ExitFinallyBlock(FinallyInfo &FinallyInfo); 642f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 643150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// pushFullExprCleanup - Push a cleanup to be run at the end of the 644150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// current full-expression. Safe against the possibility that 645150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// we're currently inside a conditionally-evaluated expression. 6463ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall template <class T, class A0> 6473ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall void pushFullExprCleanup(CleanupKind kind, A0 a0) { 6483ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall // If we're not in a conditional branch, or if none of the 6493ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall // arguments requires saving, then use the unconditional cleanup. 6503ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall if (!isInConditionalBranch()) { 6513ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall typedef EHScopeStack::UnconditionalCleanup1<T, A0> CleanupType; 6523ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall return EHStack.pushCleanup<CleanupType>(kind, a0); 6533ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall } 6543ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall 655804b807ea918184d6de63bd745e1ff75a9bfc679John McCall typename DominatingValue<A0>::saved_type a0_saved = saveValueInCond(a0); 6563ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall 6573ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall typedef EHScopeStack::ConditionalCleanup1<T, A0> CleanupType; 6583ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall EHStack.pushCleanup<CleanupType>(kind, a0_saved); 6593ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall initFullExprCleanup(); 6603ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall } 6613ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall 6623ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall /// pushFullExprCleanup - Push a cleanup to be run at the end of the 6633ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall /// current full-expression. Safe against the possibility that 6643ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall /// we're currently inside a conditionally-evaluated expression. 665150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall template <class T, class A0, class A1> 666150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall void pushFullExprCleanup(CleanupKind kind, A0 a0, A1 a1) { 667150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall // If we're not in a conditional branch, or if none of the 668150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall // arguments requires saving, then use the unconditional cleanup. 6693ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall if (!isInConditionalBranch()) { 670150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall typedef EHScopeStack::UnconditionalCleanup2<T, A0, A1> CleanupType; 671150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall return EHStack.pushCleanup<CleanupType>(kind, a0, a1); 672150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 673150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 674804b807ea918184d6de63bd745e1ff75a9bfc679John McCall typename DominatingValue<A0>::saved_type a0_saved = saveValueInCond(a0); 675804b807ea918184d6de63bd745e1ff75a9bfc679John McCall typename DominatingValue<A1>::saved_type a1_saved = saveValueInCond(a1); 676150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 677150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall typedef EHScopeStack::ConditionalCleanup2<T, A0, A1> CleanupType; 6783ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall EHStack.pushCleanup<CleanupType>(kind, a0_saved, a1_saved); 6793ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall initFullExprCleanup(); 680150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 681150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 682f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// PushDestructorCleanup - Push a cleanup to call the 683f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// complete-object destructor of an object of the given type at the 684f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// given address. Does nothing if T is not a C++ class type with a 685f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// non-trivial destructor. 686f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall void PushDestructorCleanup(QualType T, llvm::Value *Addr); 687f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 68881407d404a3fc8d24d0e2a052d85cae183033e2bJohn McCall /// PushDestructorCleanup - Push a cleanup to call the 68981407d404a3fc8d24d0e2a052d85cae183033e2bJohn McCall /// complete-object variant of the given destructor on the object at 69081407d404a3fc8d24d0e2a052d85cae183033e2bJohn McCall /// the given address. 69181407d404a3fc8d24d0e2a052d85cae183033e2bJohn McCall void PushDestructorCleanup(const CXXDestructorDecl *Dtor, 69281407d404a3fc8d24d0e2a052d85cae183033e2bJohn McCall llvm::Value *Addr); 69381407d404a3fc8d24d0e2a052d85cae183033e2bJohn McCall 694f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// PopCleanupBlock - Will pop the cleanup entry on the stack and 695f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// process all branch fixups. 696ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall void PopCleanupBlock(bool FallThroughIsBranchThrough = false); 697f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 6987d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// DeactivateCleanupBlock - Deactivates the given cleanup block. 6997d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// The block cannot be reactivated. Pops it if it's the top of the 7007d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// stack. 7017d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall void DeactivateCleanupBlock(EHScopeStack::stable_iterator Cleanup); 7027d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall 7037d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// ActivateCleanupBlock - Activates an initially-inactive cleanup. 7047d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// Cannot be used to resurrect a deactivated cleanup. 7057d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall void ActivateCleanupBlock(EHScopeStack::stable_iterator Cleanup); 706cd2d2b7814e0104ed41a8da159a06a8ca77b70d8John McCall 707f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// \brief Enters a new scope for capturing cleanups, all of which 708f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// will be executed once the scope is exited. 709f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall class RunCleanupsScope { 71001234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor CodeGenFunction& CGF; 711f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall EHScopeStack::stable_iterator CleanupStackDepth; 71201234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor bool OldDidCallStackSave; 7135656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor bool PerformCleanup; 71401234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor 715f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall RunCleanupsScope(const RunCleanupsScope &); // DO NOT IMPLEMENT 716f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall RunCleanupsScope &operator=(const RunCleanupsScope &); // DO NOT IMPLEMENT 71701234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor 71801234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor public: 71901234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor /// \brief Enter a new cleanup scope. 7209cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer explicit RunCleanupsScope(CodeGenFunction &CGF) 7219cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer : CGF(CGF), PerformCleanup(true) 7225656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor { 723f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall CleanupStackDepth = CGF.EHStack.stable_begin(); 72401234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor OldDidCallStackSave = CGF.DidCallStackSave; 7254ada2ca7d82dab68d3646f3eb6dcdfee072e8ea4Argyrios Kyrtzidis CGF.DidCallStackSave = false; 72601234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor } 72701234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor 72801234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor /// \brief Exit this cleanup scope, emitting any accumulated 72901234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor /// cleanups. 730f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall ~RunCleanupsScope() { 7315656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor if (PerformCleanup) { 7325656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor CGF.DidCallStackSave = OldDidCallStackSave; 733f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall CGF.PopCleanupBlocks(CleanupStackDepth); 7345656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor } 7355656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor } 7365656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor 7375656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor /// \brief Determine whether this scope requires any cleanups. 7385656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor bool requiresCleanups() const { 739f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return CGF.EHStack.stable_begin() != CleanupStackDepth; 7405656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor } 7415656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor 7425656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor /// \brief Force the emission of cleanups now, instead of waiting 7435656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor /// until this object is destroyed. 7445656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor void ForceCleanup() { 7455656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor assert(PerformCleanup && "Already forced cleanup"); 74601234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor CGF.DidCallStackSave = OldDidCallStackSave; 747f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall CGF.PopCleanupBlocks(CleanupStackDepth); 7485656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor PerformCleanup = false; 74901234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor } 75001234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor }; 75101234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor 75244ec82b4a1597802f5bf17721481b8c265bc8dc5Anders Carlsson 753f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// PopCleanupBlocks - Takes the old cleanup stack size and emits 754f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// the cleanup blocks that have been added. 755f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall void PopCleanupBlocks(EHScopeStack::stable_iterator OldCleanupStackSize); 75644ec82b4a1597802f5bf17721481b8c265bc8dc5Anders Carlsson 757ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall void ResolveBranchFixups(llvm::BasicBlock *Target); 758ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall 759f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// The given basic block lies in the current EH scope, but may be a 760f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// target of a potentially scope-crossing jump; get a stable handle 761f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// to which we can perform this jump later. 762ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall JumpDest getJumpDestInCurrentScope(llvm::BasicBlock *Target) { 763413e67778d593215d2f2161a4e712c8568f1ddd0John McCall return JumpDest(Target, 764413e67778d593215d2f2161a4e712c8568f1ddd0John McCall EHStack.getInnermostNormalCleanup(), 765413e67778d593215d2f2161a4e712c8568f1ddd0John McCall NextCleanupDestIndex++); 766f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 767c71c845fe77ee1f891d60232ec320912d88557eeAnders Carlsson 768f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// The given basic block lies in the current EH scope, but may be a 769f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// target of a potentially scope-crossing jump; get a stable handle 770f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// to which we can perform this jump later. 771f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall JumpDest getJumpDestInCurrentScope(const char *Name = 0) { 772ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall return getJumpDestInCurrentScope(createBasicBlock(Name)); 773f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 774f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 775f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// EmitBranchThroughCleanup - Emit a branch from the current insert 776f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// block through the normal cleanup handling code (if any) and then 777f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// on to \arg Dest. 778f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall void EmitBranchThroughCleanup(JumpDest Dest); 779f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 780f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// EmitBranchThroughEHCleanup - Emit a branch from the current 781f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// insert block through the EH cleanup handling code (if any) and 782f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// then on to \arg Dest. 783ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall void EmitBranchThroughEHCleanup(UnwindDest Dest); 784ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall 785ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall /// getRethrowDest - Returns the unified outermost-scope rethrow 786ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall /// destination. 787ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall UnwindDest getRethrowDest(); 7880dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 789150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// An object to manage conditionally-evaluated expressions. 790150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall class ConditionalEvaluation { 791150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall llvm::BasicBlock *StartBB; 7921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 793150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall public: 794150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall ConditionalEvaluation(CodeGenFunction &CGF) 795150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall : StartBB(CGF.Builder.GetInsertBlock()) {} 7969cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 797150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall void begin(CodeGenFunction &CGF) { 798150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall assert(CGF.OutermostConditional != this); 799150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall if (!CGF.OutermostConditional) 800150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall CGF.OutermostConditional = this; 801150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 802150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 803150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall void end(CodeGenFunction &CGF) { 804150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall assert(CGF.OutermostConditional != 0); 805150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall if (CGF.OutermostConditional == this) 806150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall CGF.OutermostConditional = 0; 807150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 808150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 809150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// Returns a block which will be executed prior to each 810150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// evaluation of the conditional code. 811150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall llvm::BasicBlock *getStartingBlock() const { 812150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall return StartBB; 813150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 814150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall }; 8151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8163019c444c672938c57f5573840071ecd73425ee7John McCall /// isInConditionalBranch - Return true if we're currently emitting 8173019c444c672938c57f5573840071ecd73425ee7John McCall /// one branch or the other of a conditional expression. 818150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall bool isInConditionalBranch() const { return OutermostConditional != 0; } 819150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 820150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// An RAII object to record that we're evaluating a statement 821150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// expression. 822150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall class StmtExprEvaluation { 823150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall CodeGenFunction &CGF; 824150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 825150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// We have to save the outermost conditional: cleanups in a 826150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// statement expression aren't conditional just because the 827150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// StmtExpr is. 828150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall ConditionalEvaluation *SavedOutermostConditional; 829150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 830150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall public: 831150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall StmtExprEvaluation(CodeGenFunction &CGF) 832150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall : CGF(CGF), SavedOutermostConditional(CGF.OutermostConditional) { 833150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall CGF.OutermostConditional = 0; 834150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 835150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 836150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall ~StmtExprEvaluation() { 837150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall CGF.OutermostConditional = SavedOutermostConditional; 838150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall CGF.EnsureInsertPoint(); 839150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 840150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall }; 841e220455a059d926953befe72857b9525273717efFariborz Jahanian 842e220455a059d926953befe72857b9525273717efFariborz Jahanian /// getByrefValueFieldNumber - Given a declaration, returns the LLVM field 843e220455a059d926953befe72857b9525273717efFariborz Jahanian /// number that holds the value. 844e220455a059d926953befe72857b9525273717efFariborz Jahanian unsigned getByRefValueLLVMField(const ValueDecl *VD) const; 84552a80e19ad688091723a52ad53337767bb0ac684Fariborz Jahanian 84652a80e19ad688091723a52ad53337767bb0ac684Fariborz Jahanian /// BuildBlockByrefAddress - Computes address location of the 84752a80e19ad688091723a52ad53337767bb0ac684Fariborz Jahanian /// variable which is declared as __block. 84852a80e19ad688091723a52ad53337767bb0ac684Fariborz Jahanian llvm::Value *BuildBlockByrefAddress(llvm::Value *BaseAddr, 84952a80e19ad688091723a52ad53337767bb0ac684Fariborz Jahanian const VarDecl *V); 8507f02f721d48772e4eee4fccd8af4f800be1bbc1eChris Lattnerprivate: 851d9becd1846e2c72bf6ad283faa1b048f33dd3afeChris Lattner CGDebugInfo *DebugInfo; 85209429b962811f2c0a7a81a1b0a89f96f5878b20cMike Stump 853f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// IndirectBranch - The first time an indirect goto is seen we create a block 854f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// with an indirect branch. Every time we see the address of a label taken, 855f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// we add the label to the indirect goto. Every subsequent indirect goto is 856f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// codegen'd as a jump to the IndirectBranch's basic block. 857d9becd1846e2c72bf6ad283faa1b048f33dd3afeChris Lattner llvm::IndirectBrInst *IndirectBranch; 8580ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar 8590dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// LocalDeclMap - This keeps track of the LLVM allocas or globals for local C 8600dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// decls. 8615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::DenseMap<const Decl*, llvm::Value*> LocalDeclMap; 8625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// LabelMap - This keeps track of the LLVM basic block for each C label. 864f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::DenseMap<const LabelStmt*, JumpDest> LabelMap; 8650dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 8660dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // BreakContinueStack - This keeps track of where break and continue 867e4b6d342c29d5cb9d311756100df1603810fa892Anders Carlsson // statements should jump to. 868da13870e99fe33934b2122f06528a5063f78ae4cChris Lattner struct BreakContinue { 869f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall BreakContinue(JumpDest Break, JumpDest Continue) 870f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall : BreakBlock(Break), ContinueBlock(Continue) {} 8710dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 872f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall JumpDest BreakBlock; 873f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall JumpDest ContinueBlock; 8740dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump }; 875da13870e99fe33934b2122f06528a5063f78ae4cChris Lattner llvm::SmallVector<BreakContinue, 8> BreakContinueStack; 87618ccc7776ad6288c5f630dc7967fb99d099c9cd9Daniel Dunbar 8770dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// SwitchInsn - This is nearest current switch instruction. It is null if if 8780dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// current context is not in a switch. 87951b09f2c528c8460b5465c676173324e44176d62Devang Patel llvm::SwitchInst *SwitchInsn; 88051b09f2c528c8460b5465c676173324e44176d62Devang Patel 8810dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// CaseRangeBlock - This block holds if condition check for last case 88280fd5f96e6805ac43aab99faabd5b4c8b19551b7Devang Patel /// statement range in current switch instruction. 883c049e4f406a7f7179eba98659044a32508e53289Devang Patel llvm::BasicBlock *CaseRangeBlock; 884c049e4f406a7f7179eba98659044a32508e53289Devang Patel 8850dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // VLASizeMap - This keeps track of the associated size for each VLA type. 886bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman // We track this by the size expression rather than the type itself because 887bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman // in certain situations, like a const qualifier applied to an VLA typedef, 888bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman // multiple VLA types can share the same size expression. 8890dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // FIXME: Maybe this could be a stack of maps that is pushed/popped as we 8900dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // enter/leave scopes. 891bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman llvm::DenseMap<const Expr*, llvm::Value*> VLASizeMap; 8920dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 8934cc1a4703363ff940b6273aeef9d96a87edeb04bAnders Carlsson /// DidCallStackSave - Whether llvm.stacksave has been called. Used to avoid 8944cc1a4703363ff940b6273aeef9d96a87edeb04bAnders Carlsson /// calling llvm.stacksave for multiple VLAs in the same scope. 8954cc1a4703363ff940b6273aeef9d96a87edeb04bAnders Carlsson bool DidCallStackSave; 89609429b962811f2c0a7a81a1b0a89f96f5878b20cMike Stump 897f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// A block containing a single 'unreachable' instruction. Created 898f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// lazily by getUnreachableBlock(). 899f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *UnreachableBlock; 9000dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 901f6c56e2323c3f973253805a2f35629f3253ebed4Anders Carlsson /// CXXThisDecl - When generating code for a C++ member function, 902f6c56e2323c3f973253805a2f35629f3253ebed4Anders Carlsson /// this will hold the implicit 'this' declaration. 9032b77ba8bc7a842829ad9193816dc1d7d5e9c5be6Anders Carlsson ImplicitParamDecl *CXXThisDecl; 9042504941793b549323f9d29c62507cf21d865fadeJohn McCall llvm::Value *CXXThisValue; 9051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 906f6c56e2323c3f973253805a2f35629f3253ebed4Anders Carlsson /// CXXVTTDecl - When generating code for a base object constructor or 907f6c56e2323c3f973253805a2f35629f3253ebed4Anders Carlsson /// base object destructor with virtual bases, this will hold the implicit 908f6c56e2323c3f973253805a2f35629f3253ebed4Anders Carlsson /// VTT parameter. 909f6c56e2323c3f973253805a2f35629f3253ebed4Anders Carlsson ImplicitParamDecl *CXXVTTDecl; 9102504941793b549323f9d29c62507cf21d865fadeJohn McCall llvm::Value *CXXVTTValue; 9119cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 912150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// OutermostConditional - Points to the outermost active 913150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// conditional control. This is used so that we know if a 914150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// temporary should be destroyed conditionally. 915150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall ConditionalEvaluation *OutermostConditional; 9161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 9177dfa4079f4b37507048b19bfc693d3b015d9dd11Anders Carlsson 9187dfa4079f4b37507048b19bfc693d3b015d9dd11Anders Carlsson /// ByrefValueInfoMap - For each __block variable, contains a pair of the LLVM 9197dfa4079f4b37507048b19bfc693d3b015d9dd11Anders Carlsson /// type as well as the field number that contains the actual data. 9209cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer llvm::DenseMap<const ValueDecl *, std::pair<const llvm::Type *, 9217dfa4079f4b37507048b19bfc693d3b015d9dd11Anders Carlsson unsigned> > ByRefValueInfo; 9229cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 923f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *TerminateLandingPad; 924182f383db1782af752ecaf607fdff72a8542088bMike Stump llvm::BasicBlock *TerminateHandler; 92583252dcfe61aaebcb6bc117e71dc12968729513fChris Lattner llvm::BasicBlock *TrapBB; 926940670512d7c3d93389bb38a426abcb7ef44271eEli Friedman 9275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 9285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CodeGenFunction(CodeGenModule &cgm); 9290dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 9301e7fe751466ea82665fd21e9162fd7cc9c5f412dJohn McCall CodeGenTypes &getTypes() const { return CGM.getTypes(); } 9315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ASTContext &getContext() const; 932e896d98548b02223c7740d807a0aa6e20fba7079Anders Carlsson CGDebugInfo *getDebugInfo() { return DebugInfo; } 9335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 934f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Returns a pointer to the function's exception object slot, which 935f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// is assigned in every landing pad. 936f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::Value *getExceptionSlot(); 937f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 938ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall llvm::Value *getNormalCleanupDestSlot(); 939ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall llvm::Value *getEHCleanupDestSlot(); 940ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall 941f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *getUnreachableBlock() { 942f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall if (!UnreachableBlock) { 943f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall UnreachableBlock = createBasicBlock("unreachable"); 944f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall new llvm::UnreachableInst(getLLVMContext(), UnreachableBlock); 945f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 946f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return UnreachableBlock; 947f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 948f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 949f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *getInvokeDest() { 950f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall if (!EHStack.requiresLandingPad()) return 0; 951f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return getInvokeDestImpl(); 952f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 9539834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar 954a1cf15f4680e5cf39e72e28c5ea854fcba792e84Owen Anderson llvm::LLVMContext &getLLVMContext() { return VMContext; } 95569243825cb5c91ec7207256aa57ae327cfaf8cb2Owen Anderson 9569834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar //===--------------------------------------------------------------------===// 9579834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar // Objective-C 9589834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar //===--------------------------------------------------------------------===// 9599834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar 960391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner void GenerateObjCMethod(const ObjCMethodDecl *OMD); 961af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 9620dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump void StartObjCMethod(const ObjCMethodDecl *MD, 963679a502d462ef819e6175b58e255ca3f3391e7cfFariborz Jahanian const ObjCContainerDecl *CD); 964af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 9650dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// GenerateObjCGetter - Synthesize an Objective-C property getter function. 966fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian void GenerateObjCGetter(ObjCImplementationDecl *IMP, 967fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian const ObjCPropertyImplDecl *PID); 968109dfc6ca6652f60c55ed0f2631aebf323d0200dFariborz Jahanian void GenerateObjCCtorDtorMethod(ObjCImplementationDecl *IMP, 969109dfc6ca6652f60c55ed0f2631aebf323d0200dFariborz Jahanian ObjCMethodDecl *MD, bool ctor); 970af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 9710dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// GenerateObjCSetter - Synthesize an Objective-C property setter function 9720dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// for the given property. 973fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian void GenerateObjCSetter(ObjCImplementationDecl *IMP, 974fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian const ObjCPropertyImplDecl *PID); 9750b2bd47151ee9205ad6c66d1ffb921918106088aFariborz Jahanian bool IndirectObjCSetterArg(const CGFunctionInfo &FI); 97615bd58842adaa4f8cca4e58047ed18e033858d9bFariborz Jahanian bool IvarTypeWithAggrGCObjects(QualType Ty); 977af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 9784e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump //===--------------------------------------------------------------------===// 9794e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump // Block Bits 9804e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump //===--------------------------------------------------------------------===// 9814e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump 9828a2b4b1c5b960710db95e9b296d9a600aee37c00Mike Stump llvm::Value *BuildBlockLiteralTmp(const BlockExpr *); 9832a7eb28397148079cbc8e54e8a3871ef01c4f4bcBlaine Garst llvm::Constant *BuildDescriptorBlockDecl(const BlockExpr *, 98489ecd41e0a6bfb3b0913dbe41c3c666340b308c7Fariborz Jahanian const CGBlockInfo &Info, 9850892099dbc640720400a1d9decd2733a09d733e5Mike Stump const llvm::StructType *, 98644034db24bf59a53aa7699f4bbf59b939710bb3cFariborz Jahanian llvm::Constant *BlockVarLayout, 9870892099dbc640720400a1d9decd2733a09d733e5Mike Stump std::vector<HelperInfo> *); 9884e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump 989564360be450b319aeafc26698be9811837bfb826Fariborz Jahanian llvm::Function *GenerateBlockFunction(GlobalDecl GD, 990564360be450b319aeafc26698be9811837bfb826Fariborz Jahanian const BlockExpr *BExpr, 991ee5042903d53fa7b0fbc1902d0ea07d57c7775b1John McCall CGBlockInfo &Info, 9926cc88f78fd36d3511b89412b193494b3e423cbffMike Stump const Decl *OuterFuncDecl, 99344034db24bf59a53aa7699f4bbf59b939710bb3cFariborz Jahanian llvm::Constant *& BlockVarLayout, 994ee5042903d53fa7b0fbc1902d0ea07d57c7775b1John McCall llvm::DenseMap<const Decl*, llvm::Value*> ldm); 9954e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump 9964e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump llvm::Value *LoadBlockStruct(); 9974e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump 998ea1471e0e967548c596a71469702f8846dbaf3c0John McCall void AllocateBlockCXXThisPointer(const CXXThisExpr *E); 999ea1471e0e967548c596a71469702f8846dbaf3c0John McCall void AllocateBlockDecl(const BlockDeclRefExpr *E); 1000ee5042903d53fa7b0fbc1902d0ea07d57c7775b1John McCall llvm::Value *GetAddrOfBlockDecl(const BlockDeclRefExpr *E) { 1001ee5042903d53fa7b0fbc1902d0ea07d57c7775b1John McCall return GetAddrOfBlockDecl(E->getDecl(), E->isByRef()); 1002ee5042903d53fa7b0fbc1902d0ea07d57c7775b1John McCall } 1003ee5042903d53fa7b0fbc1902d0ea07d57c7775b1John McCall llvm::Value *GetAddrOfBlockDecl(const ValueDecl *D, bool ByRef); 10049ad5513b0f9d3999705659fb1aeb0e6c53455f43Anders Carlsson const llvm::Type *BuildByRefType(const ValueDecl *D); 1005dab514fc30242c7afd6c03956e46136c400fb0d3Mike Stump 10060ff8bafde95f6fa51ccea70738c1b99db870bddcAnders Carlsson void GenerateCode(GlobalDecl GD, llvm::Function *Fn); 10070ff8bafde95f6fa51ccea70738c1b99db870bddcAnders Carlsson void StartFunction(GlobalDecl GD, QualType RetTy, 10087c086516f3cc9fba2733b1919973206c6ba4b171Daniel Dunbar llvm::Function *Fn, 10092284ac9ec80299fcdefae9a2787cf85105a0f203Daniel Dunbar const FunctionArgList &Args, 10102284ac9ec80299fcdefae9a2787cf85105a0f203Daniel Dunbar SourceLocation StartLoc); 1011a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 10129fc6a7774643a810c8501dae2323e863fefb623eJohn McCall void EmitConstructorBody(FunctionArgList &Args); 10139fc6a7774643a810c8501dae2323e863fefb623eJohn McCall void EmitDestructorBody(FunctionArgList &Args); 10149fc6a7774643a810c8501dae2323e863fefb623eJohn McCall void EmitFunctionBody(FunctionArgList &Args); 1015a355e07454463b19829ac92ffd115a097faff0e0John McCall 10160dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitReturnBlock - Emit the unified return block, trying to avoid its 10170dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// emission when possible. 10181c1d6074f5a0296dd273362655b1b8f9057289e3Daniel Dunbar void EmitReturnBlock(); 10191c1d6074f5a0296dd273362655b1b8f9057289e3Daniel Dunbar 10200dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// FinishFunction - Complete IR generation of the current function. It is 10210dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// legal to call this function even if there is no current insertion point. 1022af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar void FinishFunction(SourceLocation EndLoc=SourceLocation()); 102317b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar 1024519c32880b99396034ecaedc0cd86db2e8485003Anders Carlsson /// GenerateThunk - Generate a thunk for the given method. 1025519c32880b99396034ecaedc0cd86db2e8485003Anders Carlsson void GenerateThunk(llvm::Function *Fn, GlobalDecl GD, const ThunkInfo &Thunk); 10269cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 1027fb8cc253420e93cee33d29df5a2bdae6aaf16e39Douglas Gregor void EmitCtorPrologue(const CXXConstructorDecl *CD, CXXCtorType Type, 1028fb8cc253420e93cee33d29df5a2bdae6aaf16e39Douglas Gregor FunctionArgList &Args); 10291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1030d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson /// InitializeVTablePointer - Initialize the vtable pointer of the given 1031d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson /// subobject. 1032d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson /// 10339cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer void InitializeVTablePointer(BaseSubobject Base, 1034b3b772ea15a4cd54879e244629aa685ead9548bbAnders Carlsson const CXXRecordDecl *NearestVBase, 10354235840554aaed11efd479df9e622dc82ab77e6dAnders Carlsson uint64_t OffsetFromNearestVBase, 1036d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson llvm::Constant *VTable, 1037d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson const CXXRecordDecl *VTableClass); 1038d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson 1039d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson typedef llvm::SmallPtrSet<const CXXRecordDecl *, 4> VisitedVirtualBasesSetTy; 10409cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer void InitializeVTablePointers(BaseSubobject Base, 1041b3b772ea15a4cd54879e244629aa685ead9548bbAnders Carlsson const CXXRecordDecl *NearestVBase, 10424235840554aaed11efd479df9e622dc82ab77e6dAnders Carlsson uint64_t OffsetFromNearestVBase, 1043603d6d12cc4cba1ef219a3d55c698c7c87f87adfAnders Carlsson bool BaseIsNonVirtualPrimaryBase, 1044603d6d12cc4cba1ef219a3d55c698c7c87f87adfAnders Carlsson llvm::Constant *VTable, 1045603d6d12cc4cba1ef219a3d55c698c7c87f87adfAnders Carlsson const CXXRecordDecl *VTableClass, 1046603d6d12cc4cba1ef219a3d55c698c7c87f87adfAnders Carlsson VisitedVirtualBasesSetTy& VBases); 104777a259c6dbf582949af8a243b472c0c7faa373a6Eli Friedman 1048603d6d12cc4cba1ef219a3d55c698c7c87f87adfAnders Carlsson void InitializeVTablePointers(const CXXRecordDecl *ClassDecl); 1049d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson 1050043fb9a1fc0609285f60f0f87e5a18195408f34cDan Gohman /// GetVTablePtr - Return the Value of the vtable pointer member pointed 1051043fb9a1fc0609285f60f0f87e5a18195408f34cDan Gohman /// to by This. 1052043fb9a1fc0609285f60f0f87e5a18195408f34cDan Gohman llvm::Value *GetVTablePtr(llvm::Value *This, const llvm::Type *Ty); 1053d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson 105450da2cadcc6da86abff6772de65280ace2cabc94John McCall /// EnterDtorCleanups - Enter the cleanups necessary to complete the 105550da2cadcc6da86abff6772de65280ace2cabc94John McCall /// given phase of destruction for a destructor. The end result 105650da2cadcc6da86abff6772de65280ace2cabc94John McCall /// should call destructors on members and base classes in reverse 105750da2cadcc6da86abff6772de65280ace2cabc94John McCall /// order of their construction. 105850da2cadcc6da86abff6772de65280ace2cabc94John McCall void EnterDtorCleanups(const CXXDestructorDecl *Dtor, CXXDtorType Type); 10591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10607255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner /// ShouldInstrumentFunction - Return true if the current function should be 10617255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner /// instrumented with __cyg_profile_func_* calls 10627255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner bool ShouldInstrumentFunction(); 10637255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner 10647255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner /// EmitFunctionInstrumentation - Emit LLVM code to call the specified 10657255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner /// instrumentation function with the current function and the call site, if 10667255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner /// function instrumentation is enabled. 10677255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner void EmitFunctionInstrumentation(const char *Fn); 10687255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner 10690dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitFunctionProlog - Emit the target specific LLVM code to load the 10700dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// arguments for the given function. This is also responsible for naming the 10710dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// LLVM function arguments. 107288b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar void EmitFunctionProlog(const CGFunctionInfo &FI, 107388b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar llvm::Function *Fn, 107417b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar const FunctionArgList &Args); 107517b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar 10760dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitFunctionEpilog - Emit the target specific LLVM code to return the 10770dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// given temporary. 107835b21b884e5c3447a52a74d7ffaba966b07ac81fChris Lattner void EmitFunctionEpilog(const CGFunctionInfo &FI); 107917b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar 1080cce3d4f9812182ed4e551b7cf0fc86576be8d9c5Mike Stump /// EmitStartEHSpec - Emit the start of the exception spec. 1081cce3d4f9812182ed4e551b7cf0fc86576be8d9c5Mike Stump void EmitStartEHSpec(const Decl *D); 1082cce3d4f9812182ed4e551b7cf0fc86576be8d9c5Mike Stump 1083cce3d4f9812182ed4e551b7cf0fc86576be8d9c5Mike Stump /// EmitEndEHSpec - Emit the end of the exception spec. 1084cce3d4f9812182ed4e551b7cf0fc86576be8d9c5Mike Stump void EmitEndEHSpec(const Decl *D); 1085cce3d4f9812182ed4e551b7cf0fc86576be8d9c5Mike Stump 1086f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// getTerminateLandingPad - Return a landing pad that just calls terminate. 1087f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *getTerminateLandingPad(); 1088f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 1089f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// getTerminateHandler - Return a handler (not a landing pad, just 1090f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// a catch handler) that just calls terminate. This is used when 1091f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// a terminate scope encloses a try. 10929b39c51ae3c547568ac42325f94b4197618f6b18Mike Stump llvm::BasicBlock *getTerminateHandler(); 10939b39c51ae3c547568ac42325f94b4197618f6b18Mike Stump 10948b1a343b6b360d63d5dc8a6beb841ce4414c1e00Daniel Dunbar const llvm::Type *ConvertTypeForMem(QualType T); 10955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const llvm::Type *ConvertType(QualType T); 1096bff225ecf77fb891596ecb1b27196310d268365eJohn McCall const llvm::Type *ConvertType(const TypeDecl *T) { 1097bff225ecf77fb891596ecb1b27196310d268365eJohn McCall return ConvertType(getContext().getTypeDeclType(T)); 1098bff225ecf77fb891596ecb1b27196310d268365eJohn McCall } 1099c8aa5f1f264fb230c38182adab944232bb160c2bChris Lattner 11000dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// LoadObjCSelf - Load the value of self. This function is only valid while 11010dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// generating code for an Objective-C method. 1102c8aa5f1f264fb230c38182adab944232bb160c2bChris Lattner llvm::Value *LoadObjCSelf(); 11030dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 11040dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// TypeOfSelfObject - Return type of object that this self represents. 110545012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian QualType TypeOfSelfObject(); 11064111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner 11075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// hasAggregateLLVMType - Return true if the specified AST type will map into 11085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// an aggregate LLVM type or is void. 11095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool hasAggregateLLVMType(QualType T); 111055e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar 111155e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar /// createBasicBlock - Create an LLVM basic block. 11120dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump llvm::BasicBlock *createBasicBlock(const char *Name="", 111355e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar llvm::Function *Parent=0, 111455e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar llvm::BasicBlock *InsertBefore=0) { 111529ea6729155c759836be4b5453bee9ef8e1e97eeDaniel Dunbar#ifdef NDEBUG 11160032b2781b4deb131f8c9b7968f2030bf2489cddOwen Anderson return llvm::BasicBlock::Create(VMContext, "", Parent, InsertBefore); 111729ea6729155c759836be4b5453bee9ef8e1e97eeDaniel Dunbar#else 11180032b2781b4deb131f8c9b7968f2030bf2489cddOwen Anderson return llvm::BasicBlock::Create(VMContext, Name, Parent, InsertBefore); 111929ea6729155c759836be4b5453bee9ef8e1e97eeDaniel Dunbar#endif 112055e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar } 11210dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 11225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getBasicBlockForLabel - Return the LLVM basicblock that the specified 11235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// label maps to. 1124f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall JumpDest getJumpDestForLabel(const LabelStmt *S); 11250dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1126f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// SimplifyForwardingBlocks - If the given basic block is only a branch to 1127f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// another basic block, simplify it. This assumes that no other code could 1128f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// potentially reference the basic block. 1129aa5bd87f1fd5f9ca47924248817c89325759b30eDaniel Dunbar void SimplifyForwardingBlocks(llvm::BasicBlock *BB); 1130aa5bd87f1fd5f9ca47924248817c89325759b30eDaniel Dunbar 11310dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitBlock - Emit the given block \arg BB and set it as the insert point, 11320dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// adding a fall-through branch from the current insert block if 11330dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// necessary. It is legal to call this function even if there is no current 11340dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// insertion point. 1135a0c21a8faa79e88ac432d116eca58f7a7217195dDaniel Dunbar /// 11360dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// IsFinished - If true, indicates that the caller has finished emitting 11370dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// branches to the given block and does not expect to emit code into it. This 11380dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// means the block can be ignored if it is unreachable. 1139a0c21a8faa79e88ac432d116eca58f7a7217195dDaniel Dunbar void EmitBlock(llvm::BasicBlock *BB, bool IsFinished=false); 1140824e3bd76b2e32db2ec6e4d2d113413e518d1c63Daniel Dunbar 11410dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitBranch - Emit a branch to the specified basic block from the current 11420dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// insert block, taking care to avoid creation of branches from dummy 11430dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// blocks. It is legal to call this function even if there is no current 11440dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// insertion point. 11455e08ad3cc62ab94649959ae227a9a411a729bf49Daniel Dunbar /// 11460dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// This function clears the current insertion point. The caller should follow 11470dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// calls to this function with calls to Emit*Block prior to generation new 11480dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// code. 1149d57a871339c7c98d58d93108b806f59bdf4e13e2Daniel Dunbar void EmitBranch(llvm::BasicBlock *Block); 1150d57a871339c7c98d58d93108b806f59bdf4e13e2Daniel Dunbar 11510dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// HaveInsertPoint - True if an insertion point is defined. If not, this 11520dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// indicates that the current code being emitted is unreachable. 11530dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump bool HaveInsertPoint() const { 1154a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar return Builder.GetInsertBlock() != 0; 1155a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar } 1156a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 11570dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EnsureInsertPoint - Ensure that an insertion point is defined so that 11580dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// emitted IR has a place to go. Note that by definition, if this function 11590dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// creates a block then that block is unreachable; callers may do better to 11600dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// detect when no insertion point is defined and simply skip IR generation. 1161a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar void EnsureInsertPoint() { 1162a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar if (!HaveInsertPoint()) 1163a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar EmitBlock(createBasicBlock()); 1164a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar } 11650dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1166488e993a135ce700b982bf099c3d6b856301d642Daniel Dunbar /// ErrorUnsupported - Print out an error that codegen doesn't support the 1167dc5e8268292046114ffe02e48773572a91a310f1Chris Lattner /// specified stmt yet. 116890df4b6661968a84bf64baee489bb2f6d948fcc1Daniel Dunbar void ErrorUnsupported(const Stmt *S, const char *Type, 116990df4b6661968a84bf64baee489bb2f6d948fcc1Daniel Dunbar bool OmitOnError=false); 11705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 11725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Helpers 11735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 11740dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1175983e3d7dac99aed376939f1a4daadef98e09c3b9Daniel Dunbar LValue MakeAddrLValue(llvm::Value *V, QualType T, unsigned Alignment = 0) { 11763d5aff5d3036b0ff09d114857cd2276134b3d8c9Dan Gohman return LValue::MakeAddr(V, T, Alignment, getContext(), 11773d5aff5d3036b0ff09d114857cd2276134b3d8c9Dan Gohman CGM.getTBAAInfo(T)); 11785cf8bfec711116b3c4acc70a00717b2e119e7550Daniel Dunbar } 11795cf8bfec711116b3c4acc70a00717b2e119e7550Daniel Dunbar 11805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// CreateTempAlloca - This creates a alloca and inserts it into the entry 1181195337d2e5d4625ae9dc1328c7cdbc7115b0261bDaniel Dunbar /// block. The caller is responsible for setting an appropriate alignment on 1182195337d2e5d4625ae9dc1328c7cdbc7115b0261bDaniel Dunbar /// the alloca. 11835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::AllocaInst *CreateTempAlloca(const llvm::Type *Ty, 1184259e9ccf882d11491ad149aec5e6d7a061c9f938Daniel Dunbar const llvm::Twine &Name = "tmp"); 11850dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1186ac418162692a951ca3796d6830496a85a2d12493John McCall /// InitTempAlloca - Provide an initial value for the given alloca. 1187ac418162692a951ca3796d6830496a85a2d12493John McCall void InitTempAlloca(llvm::AllocaInst *Alloca, llvm::Value *Value); 1188ac418162692a951ca3796d6830496a85a2d12493John McCall 11899bd4da2cfa8b956b851200db8f9a37e175edbb15Daniel Dunbar /// CreateIRTemp - Create a temporary IR object of the given type, with 11909bd4da2cfa8b956b851200db8f9a37e175edbb15Daniel Dunbar /// appropriate alignment. This routine should only be used when an temporary 11919bd4da2cfa8b956b851200db8f9a37e175edbb15Daniel Dunbar /// value needs to be stored into an alloca (for example, to avoid explicit 11929bd4da2cfa8b956b851200db8f9a37e175edbb15Daniel Dunbar /// PHI construction), but the type is the IR type, not the type appropriate 11939bd4da2cfa8b956b851200db8f9a37e175edbb15Daniel Dunbar /// for storing in memory. 1194121b3facb4e0585d23766f9c1e4fdf9018a4b217Chris Lattner llvm::AllocaInst *CreateIRTemp(QualType T, const llvm::Twine &Name = "tmp"); 11959bd4da2cfa8b956b851200db8f9a37e175edbb15Daniel Dunbar 1196195337d2e5d4625ae9dc1328c7cdbc7115b0261bDaniel Dunbar /// CreateMemTemp - Create a temporary memory object of the given type, with 1197195337d2e5d4625ae9dc1328c7cdbc7115b0261bDaniel Dunbar /// appropriate alignment. 1198121b3facb4e0585d23766f9c1e4fdf9018a4b217Chris Lattner llvm::AllocaInst *CreateMemTemp(QualType T, const llvm::Twine &Name = "tmp"); 1199195337d2e5d4625ae9dc1328c7cdbc7115b0261bDaniel Dunbar 1200558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// CreateAggTemp - Create a temporary memory object for the given 1201558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// aggregate type. 1202558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall AggValueSlot CreateAggTemp(QualType T, const llvm::Twine &Name = "tmp") { 1203558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall return AggValueSlot::forAddr(CreateMemTemp(T, Name), false, false); 1204558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall } 1205558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall 12065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EvaluateExprAsBool - Perform the usual unary conversions on the specified 12075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// expression and compare the result against zero, returning an Int1Ty value. 12085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::Value *EvaluateExprAsBool(const Expr *E); 12095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12102a41637a995affa1563f4d82a8b026e326a2faa0John McCall /// EmitIgnoredExpr - Emit an expression in a context which ignores the result. 12112a41637a995affa1563f4d82a8b026e326a2faa0John McCall void EmitIgnoredExpr(const Expr *E); 12122a41637a995affa1563f4d82a8b026e326a2faa0John McCall 12139b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// EmitAnyExpr - Emit code to compute the specified expression which can have 12149b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// any type. The result is returned as an RValue struct. If this is an 12159b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// aggregate expression, the aggloc/agglocvolatile arguments indicate where 12169b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// the result should be returned. 121749d1cd5a09ed3df353371fd7f206674a85e0fb45Mike Stump /// 121849d1cd5a09ed3df353371fd7f206674a85e0fb45Mike Stump /// \param IgnoreResult - True if the resulting value isn't used. 1219558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall RValue EmitAnyExpr(const Expr *E, 1220558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall AggValueSlot AggSlot = AggValueSlot::ignored(), 1221558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall bool IgnoreResult = false); 1222d9363c3a80168283b3da518b4e17f545a6246857Devang Patel 12230dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // EmitVAListRef - Emit a "reference" to a va_list; this is either the address 12240dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // or the value of the expression, depending on how va_list is defined. 12254fd0aa5803357d8c72eeac2cae15e12649ea08feEli Friedman llvm::Value *EmitVAListRef(const Expr *E); 12264fd0aa5803357d8c72eeac2cae15e12649ea08feEli Friedman 12270dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitAnyExprToTemp - Similary to EmitAnyExpr(), however, the result will 12280dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// always be accessible even if no aggregate location is provided. 1229558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall RValue EmitAnyExprToTemp(const Expr *E); 123046f45b9bec4a265ad8400a538e5ec3a5683617f1Daniel Dunbar 12313d3ec1c099ec8bfac3aa1fb0126fe515b7c7fa05John McCall /// EmitsAnyExprToMem - Emits the code necessary to evaluate an 12323d3ec1c099ec8bfac3aa1fb0126fe515b7c7fa05John McCall /// arbitrary expression into the given memory location. 12333d3ec1c099ec8bfac3aa1fb0126fe515b7c7fa05John McCall void EmitAnyExprToMem(const Expr *E, llvm::Value *Location, 1234558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall bool IsLocationVolatile, 1235558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall bool IsInitializer); 12363d3ec1c099ec8bfac3aa1fb0126fe515b7c7fa05John McCall 123727fe2e6c97a3782a0639d87b460741e8ba5d076dMike Stump /// EmitAggregateCopy - Emit an aggrate copy. 123827fe2e6c97a3782a0639d87b460741e8ba5d076dMike Stump /// 123927fe2e6c97a3782a0639d87b460741e8ba5d076dMike Stump /// \param isVolatile - True iff either the source or the destination is 124027fe2e6c97a3782a0639d87b460741e8ba5d076dMike Stump /// volatile. 12417482d12c345c6391f8956850545e2d4aa7701ce6Daniel Dunbar void EmitAggregateCopy(llvm::Value *DestPtr, llvm::Value *SrcPtr, 124227fe2e6c97a3782a0639d87b460741e8ba5d076dMike Stump QualType EltTy, bool isVolatile=false); 12437482d12c345c6391f8956850545e2d4aa7701ce6Daniel Dunbar 124451b09f2c528c8460b5465c676173324e44176d62Devang Patel /// StartBlock - Start new block named N. If insert block is a dummy block 124551b09f2c528c8460b5465c676173324e44176d62Devang Patel /// then reuse it. 124651b09f2c528c8460b5465c676173324e44176d62Devang Patel void StartBlock(const char *N); 124751b09f2c528c8460b5465c676173324e44176d62Devang Patel 1248813733577d33ec56479667b49e1bff42dc6bba90Lauro Ramos Venancio /// GetAddrOfStaticLocalVar - Return the address of a static local variable. 12494c40d98ab7acf5f27fa89b17bd8fc0ef7683df37John McCall llvm::Constant *GetAddrOfStaticLocalVar(const VarDecl *BVD) { 12504c40d98ab7acf5f27fa89b17bd8fc0ef7683df37John McCall return cast<llvm::Constant>(GetAddrOfLocalVar(BVD)); 12514c40d98ab7acf5f27fa89b17bd8fc0ef7683df37John McCall } 12524f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman 1253dde0a94120915fa925d1ffcdb997c7b44dc9fa21Anders Carlsson /// GetAddrOfLocalVar - Return the address of a local variable. 12544c40d98ab7acf5f27fa89b17bd8fc0ef7683df37John McCall llvm::Value *GetAddrOfLocalVar(const VarDecl *VD) { 12554c40d98ab7acf5f27fa89b17bd8fc0ef7683df37John McCall llvm::Value *Res = LocalDeclMap[VD]; 12564c40d98ab7acf5f27fa89b17bd8fc0ef7683df37John McCall assert(Res && "Invalid argument to GetAddrOfLocalVar(), no decl!"); 12574c40d98ab7acf5f27fa89b17bd8fc0ef7683df37John McCall return Res; 12584c40d98ab7acf5f27fa89b17bd8fc0ef7683df37John McCall } 12590dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 12604f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman /// getAccessedFieldNo - Given an encoded value and a result number, return 12614f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman /// the input field number being accessed. 12624f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman static unsigned getAccessedFieldNo(unsigned Idx, const llvm::Constant *Elts); 12634f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman 1264d9becd1846e2c72bf6ad283faa1b048f33dd3afeChris Lattner llvm::BlockAddress *GetAddrOfLabel(const LabelStmt *L); 12653d00fdc82fd550ae4bfbb2e700a1fc85bbd6d6fdChris Lattner llvm::BasicBlock *GetIndirectGotoBlock(); 12660ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar 12671884eb0b5c55edda4893ddec45e7dbad79758782Anders Carlsson /// EmitNullInitialization - Generate code to set a value of the given type to 12681884eb0b5c55edda4893ddec45e7dbad79758782Anders Carlsson /// null, If the type contains data member pointers, they will be initialized 12691884eb0b5c55edda4893ddec45e7dbad79758782Anders Carlsson /// to -1 in accordance with the Itanium C++ ABI. 12701884eb0b5c55edda4893ddec45e7dbad79758782Anders Carlsson void EmitNullInitialization(llvm::Value *DestPtr, QualType Ty); 1271ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson 1272ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson // EmitVAArg - Generate code to get an argument from the passed in pointer 1273ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson // and update it accordingly. The return value is a pointer to the argument. 1274ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson // FIXME: We should be able to get rid of this method and use the va_arg 12750dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // instruction in LLVM instead once it works well enough. 1276ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson llvm::Value *EmitVAArg(llvm::Value *VAListAddr, QualType Ty); 1277f666b7780d04186521adcaedb0e15dfa4d5e6933Anders Carlsson 1278f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// EmitVLASize - Generate code for any VLA size expressions that might occur 1279f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// in a variably modified type. If Ty is a VLA, will return the value that 1280f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// corresponds to the size in bytes of the VLA type. Will return 0 otherwise. 1281d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// 1282d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// This function can be called with a null (unreachable) insert point. 128360d35413662ebdcd1d31e34a8a7c665eb6977f1eAnders Carlsson llvm::Value *EmitVLASize(QualType Ty); 12840dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1285dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson // GetVLASize - Returns an LLVM value that corresponds to the size in bytes 1286dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson // of a variable length array type. 1287dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson llvm::Value *GetVLASize(const VariableArrayType *); 1288dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson 12895f4307b7ba164b03c853c8d3eb4674d33f8967a6Anders Carlsson /// LoadCXXThis - Load the value of 'this'. This function is only valid while 12905f4307b7ba164b03c853c8d3eb4674d33f8967a6Anders Carlsson /// generating code for an C++ member function. 12912504941793b549323f9d29c62507cf21d865fadeJohn McCall llvm::Value *LoadCXXThis() { 12922504941793b549323f9d29c62507cf21d865fadeJohn McCall assert(CXXThisValue && "no 'this' value for this function"); 12932504941793b549323f9d29c62507cf21d865fadeJohn McCall return CXXThisValue; 12942504941793b549323f9d29c62507cf21d865fadeJohn McCall } 12951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1296c997d4278d329e18891aac9698fb991b2d4622ebAnders Carlsson /// LoadCXXVTT - Load the VTT parameter to base constructors/destructors have 1297c997d4278d329e18891aac9698fb991b2d4622ebAnders Carlsson /// virtual bases. 12982504941793b549323f9d29c62507cf21d865fadeJohn McCall llvm::Value *LoadCXXVTT() { 12992504941793b549323f9d29c62507cf21d865fadeJohn McCall assert(CXXVTTValue && "no VTT value for this function"); 13002504941793b549323f9d29c62507cf21d865fadeJohn McCall return CXXVTTValue; 13012504941793b549323f9d29c62507cf21d865fadeJohn McCall } 1302bff225ecf77fb891596ecb1b27196310d268365eJohn McCall 1303bff225ecf77fb891596ecb1b27196310d268365eJohn McCall /// GetAddressOfBaseOfCompleteClass - Convert the given pointer to a 13048561a8666c70f924c8f0209c41b9b77bbbf90607Anders Carlsson /// complete class to the given direct base. 13058561a8666c70f924c8f0209c41b9b77bbbf90607Anders Carlsson llvm::Value * 13068561a8666c70f924c8f0209c41b9b77bbbf90607Anders Carlsson GetAddressOfDirectBaseInCompleteClass(llvm::Value *Value, 13078561a8666c70f924c8f0209c41b9b77bbbf90607Anders Carlsson const CXXRecordDecl *Derived, 13088561a8666c70f924c8f0209c41b9b77bbbf90607Anders Carlsson const CXXRecordDecl *Base, 13098561a8666c70f924c8f0209c41b9b77bbbf90607Anders Carlsson bool BaseIsVirtual); 1310a88ad5618fcb07c5374c79d6781a33234984b039Anders Carlsson 1311f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// GetAddressOfBaseClass - This function will add the necessary delta to the 1312f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// load of 'this' and returns address of the base class. 13139cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer llvm::Value *GetAddressOfBaseClass(llvm::Value *Value, 13148561a8666c70f924c8f0209c41b9b77bbbf90607Anders Carlsson const CXXRecordDecl *Derived, 1315f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastExpr::path_const_iterator PathBegin, 1316f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastExpr::path_const_iterator PathEnd, 131734a2d384c745ebc39cae45dc1c0c4a6a7012e09bAnders Carlsson bool NullCheckValue); 131834a2d384c745ebc39cae45dc1c0c4a6a7012e09bAnders Carlsson 1319a3697c9c155bda93fd2802f37084b620f4738822Anders Carlsson llvm::Value *GetAddressOfDerivedClass(llvm::Value *Value, 13208561a8666c70f924c8f0209c41b9b77bbbf90607Anders Carlsson const CXXRecordDecl *Derived, 1321f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastExpr::path_const_iterator PathBegin, 1322f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastExpr::path_const_iterator PathEnd, 13235a0f49ebc83e7fe0da07b9964c44b0a7fae270cbAnders Carlsson bool NullCheckValue); 1324a3697c9c155bda93fd2802f37084b620f4738822Anders Carlsson 1325bb7e17b52ffaa4097b4c4d7935746d23539ffe2aAnders Carlsson llvm::Value *GetVirtualBaseClassOffset(llvm::Value *This, 1326bb7e17b52ffaa4097b4c4d7935746d23539ffe2aAnders Carlsson const CXXRecordDecl *ClassDecl, 1327bb7e17b52ffaa4097b4c4d7935746d23539ffe2aAnders Carlsson const CXXRecordDecl *BaseClassDecl); 13289cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 1329c0bf462cf35fe050bddbd8bff967298e4a67e79dJohn McCall void EmitDelegateCXXConstructorCall(const CXXConstructorDecl *Ctor, 1330c0bf462cf35fe050bddbd8bff967298e4a67e79dJohn McCall CXXCtorType CtorType, 1331c0bf462cf35fe050bddbd8bff967298e4a67e79dJohn McCall const FunctionArgList &Args); 1332155ed4a23366f4514befb1c9f5f89d16f8b8b6dbAnders Carlsson void EmitCXXConstructorCall(const CXXConstructorDecl *D, CXXCtorType Type, 1333155ed4a23366f4514befb1c9f5f89d16f8b8b6dbAnders Carlsson bool ForVirtualBase, llvm::Value *This, 1334b14095aa98c6fedd3625920c4ce834bcaf24d9f7Anders Carlsson CallExpr::const_arg_iterator ArgBeg, 1335b14095aa98c6fedd3625920c4ce834bcaf24d9f7Anders Carlsson CallExpr::const_arg_iterator ArgEnd); 133634999876e215b22febc240b1a6dc054215d12f9cFariborz Jahanian 133734999876e215b22febc240b1a6dc054215d12f9cFariborz Jahanian void EmitSynthesizedCXXCopyCtorCall(const CXXConstructorDecl *D, 133834999876e215b22febc240b1a6dc054215d12f9cFariborz Jahanian llvm::Value *This, llvm::Value *Src, 133934999876e215b22febc240b1a6dc054215d12f9cFariborz Jahanian CallExpr::const_arg_iterator ArgBeg, 134034999876e215b22febc240b1a6dc054215d12f9cFariborz Jahanian CallExpr::const_arg_iterator ArgEnd); 13411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1342288dcaf329c49b01dacd5c1dd9f35609555feecdFariborz Jahanian void EmitCXXAggrConstructorCall(const CXXConstructorDecl *D, 1343569c1f4a6c703eaa8b963bed7d5c2fd5d4569e93Anders Carlsson const ConstantArrayType *ArrayTy, 13445d4d946ec2d88696fd8422aeb64dc29688e6a2c1Anders Carlsson llvm::Value *ArrayPtr, 13455d4d946ec2d88696fd8422aeb64dc29688e6a2c1Anders Carlsson CallExpr::const_arg_iterator ArgBeg, 134659174c0633fb5cde41735cfbff5744bdf837e8d9Douglas Gregor CallExpr::const_arg_iterator ArgEnd, 134759174c0633fb5cde41735cfbff5744bdf837e8d9Douglas Gregor bool ZeroInitialization = false); 13489cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 1349569c1f4a6c703eaa8b963bed7d5c2fd5d4569e93Anders Carlsson void EmitCXXAggrConstructorCall(const CXXConstructorDecl *D, 1350569c1f4a6c703eaa8b963bed7d5c2fd5d4569e93Anders Carlsson llvm::Value *NumElements, 13515d4d946ec2d88696fd8422aeb64dc29688e6a2c1Anders Carlsson llvm::Value *ArrayPtr, 13525d4d946ec2d88696fd8422aeb64dc29688e6a2c1Anders Carlsson CallExpr::const_arg_iterator ArgBeg, 135359174c0633fb5cde41735cfbff5744bdf837e8d9Douglas Gregor CallExpr::const_arg_iterator ArgEnd, 135459174c0633fb5cde41735cfbff5744bdf837e8d9Douglas Gregor bool ZeroInitialization = false); 1355b14095aa98c6fedd3625920c4ce834bcaf24d9f7Anders Carlsson 1356f800f6c09ed4a71bcb593d6962e0fda2c2845a70Fariborz Jahanian void EmitCXXAggrDestructorCall(const CXXDestructorDecl *D, 1357f800f6c09ed4a71bcb593d6962e0fda2c2845a70Fariborz Jahanian const ArrayType *Array, 1358f800f6c09ed4a71bcb593d6962e0fda2c2845a70Fariborz Jahanian llvm::Value *This); 13591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 136072c2153b466263a21870b2b1c817900d4981493eFariborz Jahanian void EmitCXXAggrDestructorCall(const CXXDestructorDecl *D, 136172c2153b466263a21870b2b1c817900d4981493eFariborz Jahanian llvm::Value *NumElements, 136272c2153b466263a21870b2b1c817900d4981493eFariborz Jahanian llvm::Value *This); 136372c2153b466263a21870b2b1c817900d4981493eFariborz Jahanian 136402e370a02f05b4a734fe5e8c88efc4ed9dac60faAnders Carlsson llvm::Function *GenerateCXXAggrDestructorHelper(const CXXDestructorDecl *D, 136502e370a02f05b4a734fe5e8c88efc4ed9dac60faAnders Carlsson const ArrayType *Array, 136602e370a02f05b4a734fe5e8c88efc4ed9dac60faAnders Carlsson llvm::Value *This); 136788f4280f6b60edcbdea6a38a3da8b17d66473ad6Fariborz Jahanian 13687267c1693abe7875b0c57268be05005ae013c6c9Anders Carlsson void EmitCXXDestructorCall(const CXXDestructorDecl *D, CXXDtorType Type, 13698e6404ca28d6bbb76e97ea2a53a74816c2a74665Anders Carlsson bool ForVirtualBase, llvm::Value *This); 13709cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 1371ef66872797e46ced3ffdb428e582bc7f00474f99Fariborz Jahanian void EmitNewArrayInitializer(const CXXNewExpr *E, llvm::Value *NewPtr, 1372ef66872797e46ced3ffdb428e582bc7f00474f99Fariborz Jahanian llvm::Value *NumElements); 13731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1374f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall void EmitCXXTemporary(const CXXTemporary *Temporary, llvm::Value *Ptr); 13751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1376a00703dccbdc6cc4a293db38477dea7db5538c7eAnders Carlsson llvm::Value *EmitCXXNewExpr(const CXXNewExpr *E); 137760e282cc1e508be327b0481cecedc206873cb86aAnders Carlsson void EmitCXXDeleteExpr(const CXXDeleteExpr *E); 13781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13794bf8152799ec41796f989ea1b94f6f1bac349117Eli Friedman void EmitDeleteCall(const FunctionDecl *DeleteFD, llvm::Value *Ptr, 13804bf8152799ec41796f989ea1b94f6f1bac349117Eli Friedman QualType DeleteTy); 13814bf8152799ec41796f989ea1b94f6f1bac349117Eli Friedman 1382c2e84ae9a6d25cea3e583c768e576b4c981ec028Mike Stump llvm::Value* EmitCXXTypeidExpr(const CXXTypeidExpr *E); 1383c849c052d6b4b70f2651c1969531861a5f230053Mike Stump llvm::Value *EmitDynamicCast(llvm::Value *V, const CXXDynamicCastExpr *DCE); 1384c2e84ae9a6d25cea3e583c768e576b4c981ec028Mike Stump 1385b14e62d5aee7522b98c410ee65bd750c2cfe6f01Mike Stump void EmitCheck(llvm::Value *, unsigned Size); 1386b14e62d5aee7522b98c410ee65bd750c2cfe6f01Mike Stump 1387dd36d328730d8c02915d0884541b45ec6ca0049dChris Lattner llvm::Value *EmitScalarPrePostIncDec(const UnaryOperator *E, LValue LV, 1388dd36d328730d8c02915d0884541b45ec6ca0049dChris Lattner bool isInc, bool isPre); 1389dd36d328730d8c02915d0884541b45ec6ca0049dChris Lattner ComplexPairTy EmitComplexPrePostIncDec(const UnaryOperator *E, LValue LV, 1390dd36d328730d8c02915d0884541b45ec6ca0049dChris Lattner bool isInc, bool isPre); 13915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 13925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Declaration Emission 13935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 13940dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1395d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// EmitDecl - Emit a declaration. 1396d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// 1397d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// This function can be called with a null (unreachable) insert point. 13985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitDecl(const Decl &D); 1399d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar 1400b6bbcc9995186799a60ce17d0c1acff31601653aJohn McCall /// EmitVarDecl - Emit a local variable declaration. 1401d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// 1402d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// This function can be called with a null (unreachable) insert point. 1403b6bbcc9995186799a60ce17d0c1acff31601653aJohn McCall void EmitVarDecl(const VarDecl &D); 1404d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar 1405f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall typedef void SpecialInitFn(CodeGenFunction &Init, const VarDecl &D, 1406f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::Value *Address); 1407f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 1408b6bbcc9995186799a60ce17d0c1acff31601653aJohn McCall /// EmitAutoVarDecl - Emit an auto variable declaration. 1409d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// 1410d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// This function can be called with a null (unreachable) insert point. 1411b6bbcc9995186799a60ce17d0c1acff31601653aJohn McCall void EmitAutoVarDecl(const VarDecl &D, SpecialInitFn *SpecialInit = 0); 1412d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar 1413b6bbcc9995186799a60ce17d0c1acff31601653aJohn McCall void EmitStaticVarDecl(const VarDecl &D, 1414b6bbcc9995186799a60ce17d0c1acff31601653aJohn McCall llvm::GlobalValue::LinkageTypes Linkage); 1415b7ec246872b412f0e7bb9e93eacfd78cfa6adfb3Daniel Dunbar 1416b7ec246872b412f0e7bb9e93eacfd78cfa6adfb3Daniel Dunbar /// EmitParmDecl - Emit a ParmVarDecl or an ImplicitParamDecl. 1417b7ec246872b412f0e7bb9e93eacfd78cfa6adfb3Daniel Dunbar void EmitParmDecl(const VarDecl &D, llvm::Value *Arg); 14180dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 14195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 14205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Statement Emission 14215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 14225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14230dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitStopPoint - Emit a debug stoppoint if we are emitting debug info. 14240912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar void EmitStopPoint(const Stmt *S); 14250912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar 14260dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitStmt - Emit the code for the statement \arg S. It is legal to call 14270dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// this function even if there is no current insertion point. 14280dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// 14290dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// This function may clear the current insertion point; callers should use 14300dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EnsureInsertPoint if they wish to subsequently generate code without first 14310dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// calling EmitBlock, EmitBranch, or EmitStmt. 14325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitStmt(const Stmt *S); 1433a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 14340912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar /// EmitSimpleStmt - Try to emit a "simple" statement which does not 14350dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// necessarily require an insertion point or debug information; typically 14360dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// because the statement amounts to a jump or a container of other 14370dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// statements. 14380912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar /// 14390912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar /// \return True if the statement was handled. 14400912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar bool EmitSimpleStmt(const Stmt *S); 14410912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar 14429b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner RValue EmitCompoundStmt(const CompoundStmt &S, bool GetLast = false, 1443558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall AggValueSlot AVS = AggValueSlot::ignored()); 1444a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 14450dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitLabel - Emit the block for the given label. It is legal to call this 14460dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// function even if there is no current insertion point. 144791d723da7b68be5245c3ac58aa2a36d04658cfb8Chris Lattner void EmitLabel(const LabelStmt &S); // helper for EmitLabelStmt. 1448a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 14495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitLabelStmt(const LabelStmt &S); 14505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitGotoStmt(const GotoStmt &S); 14510ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar void EmitIndirectGotoStmt(const IndirectGotoStmt &S); 14525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitIfStmt(const IfStmt &S); 14535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitWhileStmt(const WhileStmt &S); 14545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitDoStmt(const DoStmt &S); 14555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitForStmt(const ForStmt &S); 14565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitReturnStmt(const ReturnStmt &S); 14575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitDeclStmt(const DeclStmt &S); 14580912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar void EmitBreakStmt(const BreakStmt &S); 14590912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar void EmitContinueStmt(const ContinueStmt &S); 146051b09f2c528c8460b5465c676173324e44176d62Devang Patel void EmitSwitchStmt(const SwitchStmt &S); 146151b09f2c528c8460b5465c676173324e44176d62Devang Patel void EmitDefaultStmt(const DefaultStmt &S); 146251b09f2c528c8460b5465c676173324e44176d62Devang Patel void EmitCaseStmt(const CaseStmt &S); 1463c049e4f406a7f7179eba98659044a32508e53289Devang Patel void EmitCaseStmtRange(const CaseStmt &S); 1464fb1aeb804c08d5288a923fb278161783e6abdc66Anders Carlsson void EmitAsmStmt(const AsmStmt &S); 14650dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 14663d8400d9a61aa4b63ff35e5cede405b32a41425eAnders Carlsson void EmitObjCForCollectionStmt(const ObjCForCollectionStmt &S); 146764d5d6c5903157c521af496479d06dc26032d718Anders Carlsson void EmitObjCAtTryStmt(const ObjCAtTryStmt &S); 146864d5d6c5903157c521af496479d06dc26032d718Anders Carlsson void EmitObjCAtThrowStmt(const ObjCAtThrowStmt &S); 146910cac6f7115b59a466bb8d2d51cdddeb38aadc37Chris Lattner void EmitObjCAtSynchronizedStmt(const ObjCAtSynchronizedStmt &S); 14700dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 147186a3a03667bdb0dcab7e6a2877dfd234b07a6d43Douglas Gregor llvm::Constant *getUnwindResumeOrRethrowFn(); 147259a7000a79118e4c140885ccbb2ac6a686a73092John McCall void EnterCXXTryStmt(const CXXTryStmt &S, bool IsFnTryBlock = false); 147359a7000a79118e4c140885ccbb2ac6a686a73092John McCall void ExitCXXTryStmt(const CXXTryStmt &S, bool IsFnTryBlock = false); 14749fc6a7774643a810c8501dae2323e863fefb623eJohn McCall 14756815e941998659a55c20c147861b0f437928c3d8Anders Carlsson void EmitCXXTryStmt(const CXXTryStmt &S); 14769cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 14775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 14785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // LValue Expression Emission 14795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 14805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 148113e81737a433b23f8c662d10d1d57356122a8caaDaniel Dunbar /// GetUndefRValue - Get an appropriate 'undef' rvalue for the given type. 148213e81737a433b23f8c662d10d1d57356122a8caaDaniel Dunbar RValue GetUndefRValue(QualType Ty); 148313e81737a433b23f8c662d10d1d57356122a8caaDaniel Dunbar 1484ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar /// EmitUnsupportedRValue - Emit a dummy r-value using the type of E 1485ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar /// and issue an ErrorUnsupported style diagnostic (using the 1486ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar /// provided Name). 1487ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar RValue EmitUnsupportedRValue(const Expr *E, 1488ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar const char *Name); 1489ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar 14900dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitUnsupportedLValue - Emit a dummy l-value using the type of E and issue 14910dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// an ErrorUnsupported style diagnostic (using the provided Name). 14926ba82a4a4b295e54cf192c3e98b28f39990c6194Daniel Dunbar LValue EmitUnsupportedLValue(const Expr *E, 14936ba82a4a4b295e54cf192c3e98b28f39990c6194Daniel Dunbar const char *Name); 14946ba82a4a4b295e54cf192c3e98b28f39990c6194Daniel Dunbar 14955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EmitLValue - Emit code to compute a designator that specifies the location 14965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// of the expression. 14975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 14985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// This can return one of two things: a simple address or a bitfield 14995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// reference. In either case, the LLVM Value* in the LValue structure is 15005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// guaranteed to be an LLVM pointer type. 15015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 15025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// If this returns a bitfield reference, nothing about the pointee type of 15035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// the LLVM value is known: For example, it may not be a pointer to an 15045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// integer. 15055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 15065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// If this returns a normal address, and if the lvalue's C type is fixed 15075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// size, this method guarantees that the returned pointer type will point to 15085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// an LLVM type of the same size of the lvalue's type. If the lvalue has a 15095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// variable length type, this is not possible. 15105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 15115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitLValue(const Expr *E); 15120dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1513b14e62d5aee7522b98c410ee65bd750c2cfe6f01Mike Stump /// EmitCheckedLValue - Same as EmitLValue but additionally we generate 1514b14e62d5aee7522b98c410ee65bd750c2cfe6f01Mike Stump /// checking code to guard against undefined behavior. This is only 1515b14e62d5aee7522b98c410ee65bd750c2cfe6f01Mike Stump /// suitable when we know that the address will be used to access the 1516b14e62d5aee7522b98c410ee65bd750c2cfe6f01Mike Stump /// object. 1517b14e62d5aee7522b98c410ee65bd750c2cfe6f01Mike Stump LValue EmitCheckedLValue(const Expr *E); 1518b14e62d5aee7522b98c410ee65bd750c2cfe6f01Mike Stump 151926815d97c5743481e317f17a8d53a6819d061862John McCall /// EmitToMemory - Change a scalar value from its value 152026815d97c5743481e317f17a8d53a6819d061862John McCall /// representation to its in-memory representation. 152126815d97c5743481e317f17a8d53a6819d061862John McCall llvm::Value *EmitToMemory(llvm::Value *Value, QualType Ty); 152226815d97c5743481e317f17a8d53a6819d061862John McCall 152326815d97c5743481e317f17a8d53a6819d061862John McCall /// EmitFromMemory - Change a scalar value from its memory 152426815d97c5743481e317f17a8d53a6819d061862John McCall /// representation to its value representation. 152526815d97c5743481e317f17a8d53a6819d061862John McCall llvm::Value *EmitFromMemory(llvm::Value *Value, QualType Ty); 152626815d97c5743481e317f17a8d53a6819d061862John McCall 15279d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// EmitLoadOfScalar - Load a scalar value from an address, taking 15289d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// care to appropriately convert from the memory representation to 15299d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// the LLVM value representation. 153009429b962811f2c0a7a81a1b0a89f96f5878b20cMike Stump llvm::Value *EmitLoadOfScalar(llvm::Value *Addr, bool Volatile, 15313d5aff5d3036b0ff09d114857cd2276134b3d8c9Dan Gohman unsigned Alignment, QualType Ty, 15323d5aff5d3036b0ff09d114857cd2276134b3d8c9Dan Gohman llvm::MDNode *TBAAInfo = 0); 15339d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar 15349d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// EmitStoreOfScalar - Store a scalar value to an address, taking 15359d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// care to appropriately convert from the memory representation to 15369d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// the LLVM value representation. 153709429b962811f2c0a7a81a1b0a89f96f5878b20cMike Stump void EmitStoreOfScalar(llvm::Value *Value, llvm::Value *Addr, 15383d5aff5d3036b0ff09d114857cd2276134b3d8c9Dan Gohman bool Volatile, unsigned Alignment, QualType Ty, 15393d5aff5d3036b0ff09d114857cd2276134b3d8c9Dan Gohman llvm::MDNode *TBAAInfo = 0); 15409d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar 15415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EmitLoadOfLValue - Given an expression that represents a value lvalue, 15425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// this method emits the address of the lvalue, then loads the result as an 15435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// rvalue, returning the rvalue. 15445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer RValue EmitLoadOfLValue(LValue V, QualType LVType); 1545213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman RValue EmitLoadOfExtVectorElementLValue(LValue V, QualType LVType); 15463b8c22d93da1432b2d4cea779d14912645c93866Lauro Ramos Venancio RValue EmitLoadOfBitfieldLValue(LValue LV, QualType ExprType); 1547119a1c6c4029d30cae7b31a2826aa0ff70d01668John McCall RValue EmitLoadOfPropertyRefLValue(LValue LV, 1548119a1c6c4029d30cae7b31a2826aa0ff70d01668John McCall ReturnValueSlot Return = ReturnValueSlot()); 15490dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 15505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EmitStoreThroughLValue - Store the specified rvalue into the specified 15515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// lvalue, where both are guaranteed to the have the same type, and that type 15525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// is 'Ty'. 15535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitStoreThroughLValue(RValue Src, LValue Dst, QualType Ty); 1554213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman void EmitStoreThroughExtVectorComponentLValue(RValue Src, LValue Dst, 1555213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman QualType Ty); 1556119a1c6c4029d30cae7b31a2826aa0ff70d01668John McCall void EmitStoreThroughPropertyRefLValue(RValue Src, LValue Dst); 1557ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar 15580dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitStoreThroughLValue - Store Src into Dst with same constraints as 15590dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitStoreThroughLValue. 1560ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar /// 15610dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// \param Result [out] - If non-null, this will be set to a Value* for the 15620dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// bit-field contents after the store, appropriate for use as the result of 15630dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// an assignment to the bit-field. 1564ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar void EmitStoreThroughBitfieldLValue(RValue Src, LValue Dst, QualType Ty, 1565ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar llvm::Value **Result=0); 15660dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 156783ce9d4a552987d34cbd500e983db8d770232379John McCall /// Emit an l-value for an assignment (simple or compound) of complex type. 156883ce9d4a552987d34cbd500e983db8d770232379John McCall LValue EmitComplexAssignmentLValue(const BinaryOperator *E); 15692a41637a995affa1563f4d82a8b026e326a2faa0John McCall LValue EmitComplexCompoundAssignmentLValue(const CompoundAssignOperator *E); 157083ce9d4a552987d34cbd500e983db8d770232379John McCall 157122c940ee588a420cd2e6c8f68be2ac3cc80061ffChristopher Lamb // Note: only availabe for agg return types 157280e62c29fe21cd06c93eba6e72b7e32dca06fcf9Daniel Dunbar LValue EmitBinaryOperatorLValue(const BinaryOperator *E); 15732a41637a995affa1563f4d82a8b026e326a2faa0John McCall LValue EmitCompoundAssignmentLValue(const CompoundAssignOperator *E); 15745b5c9ef865607e179413462dcd71bcebb5b7daaeDaniel Dunbar // Note: only available for agg return types 157522c940ee588a420cd2e6c8f68be2ac3cc80061ffChristopher Lamb LValue EmitCallExprLValue(const CallExpr *E); 15765b5c9ef865607e179413462dcd71bcebb5b7daaeDaniel Dunbar // Note: only available for agg return types 15775b5c9ef865607e179413462dcd71bcebb5b7daaeDaniel Dunbar LValue EmitVAArgExprLValue(const VAArgExpr *E); 15785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitDeclRefLValue(const DeclRefExpr *E); 15795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitStringLiteralLValue(const StringLiteral *E); 1580eaf2bb89eb2aad3b80673de30febe52df43c10ecChris Lattner LValue EmitObjCEncodeExprLValue(const ObjCEncodeExpr *E); 1581d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner LValue EmitPredefinedLValue(const PredefinedExpr *E); 15825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitUnaryOpLValue(const UnaryOperator *E); 15835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitArraySubscriptExpr(const ArraySubscriptExpr *E); 1584213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman LValue EmitExtVectorElementExpr(const ExtVectorElementExpr *E); 1585b84a06e68ffd71da22e3c75b6e4bbdba37816413Devang Patel LValue EmitMemberExpr(const MemberExpr *E); 1586820bca41c3899374775d2a1dfc2ef2e22aaf1c7bFariborz Jahanian LValue EmitObjCIsaExpr(const ObjCIsaExpr *E); 158706e863f2902b8ba55b056308875c19f7ba3dab25Eli Friedman LValue EmitCompoundLiteralLValue(const CompoundLiteralExpr *E); 15886fcec8b58d0571866fcb162db947b029cc539ec4Anders Carlsson LValue EmitConditionalOperatorLValue(const ConditionalOperator *E); 158975dfedaf702822c9e51a4f3c5d3ecf2d2ad99272Chris Lattner LValue EmitCastLValue(const CastExpr *E); 1590ed8abf18329df67b0abcbb3a10458bd8c1d2a595Douglas Gregor LValue EmitNullInitializationLValue(const CXXScalarValueInitExpr *E); 15919cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 15922a03192a02dbf4fdff438d1e658356bde871aba4Daniel Dunbar llvm::Value *EmitIvarOffset(const ObjCInterfaceDecl *Interface, 159329e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar const ObjCIvarDecl *Ivar); 1594a9976d3b192690db20f59dc44099ac4ca939bdb7John McCall LValue EmitLValueForAnonRecordField(llvm::Value* Base, 159500eb3f9c5b33e3d99aee1f8b75dd9c9678fdd66bFrancois Pichet const IndirectFieldDecl* Field, 1596a9976d3b192690db20f59dc44099ac4ca939bdb7John McCall unsigned CVRQualifiers); 15970ed303c918915cbe2c611cddbfabd00404664831Anders Carlsson LValue EmitLValueForField(llvm::Value* Base, const FieldDecl* Field, 1598e6d2a534851a649485cb087e9dfcaf8a65886858Anders Carlsson unsigned CVRQualifiers); 15999cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 160006a2970e9480c6d02b367b2f970baff29b9f9721Anders Carlsson /// EmitLValueForFieldInitialization - Like EmitLValueForField, except that 160106a2970e9480c6d02b367b2f970baff29b9f9721Anders Carlsson /// if the Field is a reference, this will return the address of the reference 160206a2970e9480c6d02b367b2f970baff29b9f9721Anders Carlsson /// and not the address of the value stored in the reference. 16039cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer LValue EmitLValueForFieldInitialization(llvm::Value* Base, 160406a2970e9480c6d02b367b2f970baff29b9f9721Anders Carlsson const FieldDecl* Field, 160506a2970e9480c6d02b367b2f970baff29b9f9721Anders Carlsson unsigned CVRQualifiers); 16069cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 160745012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian LValue EmitLValueForIvar(QualType ObjectTy, 160845012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian llvm::Value* Base, const ObjCIvarDecl *Ivar, 160929e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar unsigned CVRQualifiers); 161029e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar 16110ed303c918915cbe2c611cddbfabd00404664831Anders Carlsson LValue EmitLValueForBitfield(llvm::Value* Base, const FieldDecl* Field, 1612598d3f61b6ca854e9d3c2f3359e24468502a61aaFariborz Jahanian unsigned CVRQualifiers); 1613fd64bb635dc221baa19f81d5d2a084f7eb269f7fFariborz Jahanian 1614a99038c0757a836c6faeeddaa5dfd249b32f6e9eMike Stump LValue EmitBlockDeclRefLValue(const BlockDeclRefExpr *E); 1615a99038c0757a836c6faeeddaa5dfd249b32f6e9eMike Stump 1616b58d017f2b9eeed33f2ab3ede968b89cf5296bf2Anders Carlsson LValue EmitCXXConstructLValue(const CXXConstructExpr *E); 1617e61c9e80a108b5db7e5f0e702f0e455d737c6390Anders Carlsson LValue EmitCXXBindTemporaryLValue(const CXXBindTemporaryExpr *E); 16184765fa05b5652fcc4356371c2f481d0ea9a1b007John McCall LValue EmitExprWithCleanupsLValue(const ExprWithCleanups *E); 1619c2e84ae9a6d25cea3e583c768e576b4c981ec028Mike Stump LValue EmitCXXTypeidLValue(const CXXTypeidExpr *E); 16209cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 16210a04d77bde7e3a661c2b41b60630d125d09ed6efDaniel Dunbar LValue EmitObjCMessageExprLValue(const ObjCMessageExpr *E); 1622391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner LValue EmitObjCIvarRefLValue(const ObjCIvarRefExpr *E); 162385c59edda02df48fae8dc85049743319bc6e7e89Daniel Dunbar LValue EmitObjCPropertyRefLValue(const ObjCPropertyRefExpr *E); 1624654599454c8e6cc83b1b9b3af43c49c2f66a26cbChris Lattner LValue EmitStmtExprLValue(const StmtExpr *E); 16258bfd31f9dad09cd52225d868bbd92a9bebe87775Fariborz Jahanian LValue EmitPointerToDataMemberBinaryExpr(const BinaryOperator *E); 162603b2960c14aede6ac82bdef32247094ebb72fa69Fariborz Jahanian LValue EmitObjCSelectorLValue(const ObjCSelectorExpr *E); 1627189d6ef40eff11b83b2cda941d5ed89a5cef09b2John McCall void EmitDeclRefExprDbgValue(const DeclRefExpr *E, llvm::Constant *Init); 16285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 1629883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner // Scalar Expression Emission 16305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 16315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16320dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitCall - Generate a call of the given function, expecting the given 16330dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// result type, and using the given argument list which specifies both the 16340dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// LLVM arguments and the types they were derived from. 1635c0ef9f59937c3971c48b6fed37cf5bd8985c024bDaniel Dunbar /// 1636f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// \param TargetDecl - If given, the decl of the function in a direct call; 1637f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// used to set attributes on the call (noreturn, etc.). 163888b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar RValue EmitCall(const CGFunctionInfo &FnInfo, 163988b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar llvm::Value *Callee, 1640f3c47c9525153aea2de0ec4bd615b9cf2d81c103Anders Carlsson ReturnValueSlot ReturnValue, 1641c0ef9f59937c3971c48b6fed37cf5bd8985c024bDaniel Dunbar const CallArgList &Args, 1642dd5c98f709837e5dd3da08d44d1ce407975df2cfDavid Chisnall const Decl *TargetDecl = 0, 16434b02afcb45cd1a384de7d45f440a8be091dd500bDavid Chisnall llvm::Instruction **callOrInvoke = 0); 16441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 164531777a2540879051a3c643b90e02c3fd3d315243Anders Carlsson RValue EmitCall(QualType FnType, llvm::Value *Callee, 1646d2490a91341b57df7a7e54f8a707e7ecde2eeb4eAnders Carlsson ReturnValueSlot ReturnValue, 1647986477149db76e6d9f8d3c9859c9880c11b680aeAnders Carlsson CallExpr::const_arg_iterator ArgBeg, 1648986477149db76e6d9f8d3c9859c9880c11b680aeAnders Carlsson CallExpr::const_arg_iterator ArgEnd, 1649986477149db76e6d9f8d3c9859c9880c11b680aeAnders Carlsson const Decl *TargetDecl = 0); 16509cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer RValue EmitCallExpr(const CallExpr *E, 1651d2490a91341b57df7a7e54f8a707e7ecde2eeb4eAnders Carlsson ReturnValueSlot ReturnValue = ReturnValueSlot()); 16521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1653f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::CallSite EmitCallOrInvoke(llvm::Value *Callee, 1654f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::Value * const *ArgBegin, 1655f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::Value * const *ArgEnd, 1656f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall const llvm::Twine &Name = ""); 1657f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 1658566abee1e9828a7700b51e4d17ea08234fde3bb4Anders Carlsson llvm::Value *BuildVirtualCall(const CXXMethodDecl *MD, llvm::Value *This, 1659f0070dbae9535836ad41711081465dec2259786bMike Stump const llvm::Type *Ty); 16609cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer llvm::Value *BuildVirtualCall(const CXXDestructorDecl *DD, CXXDtorType Type, 166183eedd9fa800c273647c7a90465ea9c110f9d93cAnders Carlsson llvm::Value *This, const llvm::Type *Ty); 16622726267f094a0c1f5ac5b501ec5a9898c58876bfFariborz Jahanian llvm::Value *BuildAppleKextVirtualCall(const CXXMethodDecl *MD, 16632726267f094a0c1f5ac5b501ec5a9898c58876bfFariborz Jahanian NestedNameSpecifier *Qual, 16642726267f094a0c1f5ac5b501ec5a9898c58876bfFariborz Jahanian llvm::Value *This, 16652726267f094a0c1f5ac5b501ec5a9898c58876bfFariborz Jahanian const llvm::Type *Ty); 1666566abee1e9828a7700b51e4d17ea08234fde3bb4Anders Carlsson 1667b9de2c55b2a33776e2bee8ee57df7599b374c8a5Anders Carlsson RValue EmitCXXMemberCall(const CXXMethodDecl *MD, 1668b9de2c55b2a33776e2bee8ee57df7599b374c8a5Anders Carlsson llvm::Value *Callee, 1669a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson ReturnValueSlot ReturnValue, 1670b9de2c55b2a33776e2bee8ee57df7599b374c8a5Anders Carlsson llvm::Value *This, 1671c997d4278d329e18891aac9698fb991b2d4622ebAnders Carlsson llvm::Value *VTT, 1672b9de2c55b2a33776e2bee8ee57df7599b374c8a5Anders Carlsson CallExpr::const_arg_iterator ArgBeg, 1673b9de2c55b2a33776e2bee8ee57df7599b374c8a5Anders Carlsson CallExpr::const_arg_iterator ArgEnd); 1674a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson RValue EmitCXXMemberCallExpr(const CXXMemberCallExpr *E, 1675a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson ReturnValueSlot ReturnValue); 1676a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson RValue EmitCXXMemberPointerCallExpr(const CXXMemberCallExpr *E, 1677a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson ReturnValueSlot ReturnValue); 16785549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek 16790f294632f36459174199b77699e339715244b5abAnders Carlsson RValue EmitCXXOperatorMemberCallExpr(const CXXOperatorCallExpr *E, 1680a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson const CXXMethodDecl *MD, 1681a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson ReturnValueSlot ReturnValue); 16821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16839cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 16841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump RValue EmitBuiltinExpr(const FunctionDecl *FD, 1685ef2abfee3ea16ec74942dc09e9e425f46aeb2582Daniel Dunbar unsigned BuiltinID, const CallExpr *E); 16865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1687a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson RValue EmitBlockCallExpr(const CallExpr *E, ReturnValueSlot ReturnValue); 168809429b962811f2c0a7a81a1b0a89f96f5878b20cMike Stump 16890dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitTargetBuiltinExpr - Emit the given builtin call. Returns 0 if the call 16900dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// is unhandled by the current target. 1691f02e9ddf5efc75917af712b3c7f909581205f0a5Daniel Dunbar llvm::Value *EmitTargetBuiltinExpr(unsigned BuiltinID, const CallExpr *E); 1692f02e9ddf5efc75917af712b3c7f909581205f0a5Daniel Dunbar 16932752c0137d95aa2f4ee1cdff4b564bac842e041bChris Lattner llvm::Value *EmitARMBuiltinExpr(unsigned BuiltinID, const CallExpr *E); 16949cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer llvm::Value *EmitNeonCall(llvm::Function *F, 169530d91718a676177f0d0d0210ce4fdb4f616df6e5Nate Begeman llvm::SmallVectorImpl<llvm::Value*> &O, 1696db3d4d036037f379f12643e067b229862d61e932Bob Wilson const char *name, 169761eecf5aea018ea65c9ab0bccacd2996b15c632dNate Begeman unsigned shift = 0, bool rightshift = false); 1698cf55652cf668c1402eee0b12edd2e5a1bc34d7a1Bob Wilson llvm::Value *EmitNeonSplat(llvm::Value *V, llvm::Constant *Idx); 1699464ccb68f22a7e1c0a2844551c16f721540c91c3Nate Begeman llvm::Value *EmitNeonShiftVector(llvm::Value *V, const llvm::Type *Ty, 170061eecf5aea018ea65c9ab0bccacd2996b15c632dNate Begeman bool negateForRightShift); 17019cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 1702aa51e513850688b7963efc62abf1eface7037602Bill Wendling llvm::Value *BuildVector(const llvm::SmallVectorImpl<llvm::Value*> &Ops); 1703564f1de67d7ba43646b8740db86d6269e3dfbe0bAnders Carlsson llvm::Value *EmitX86BuiltinExpr(unsigned BuiltinID, const CallExpr *E); 1704564f1de67d7ba43646b8740db86d6269e3dfbe0bAnders Carlsson llvm::Value *EmitPPCBuiltinExpr(unsigned BuiltinID, const CallExpr *E); 17050dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1706ed7c618f849e2541b1d0288c43154937652c5b15Daniel Dunbar llvm::Value *EmitObjCProtocolExpr(const ObjCProtocolExpr *E); 17077f02f721d48772e4eee4fccd8af4f800be1bbc1eChris Lattner llvm::Value *EmitObjCStringLiteral(const ObjCStringLiteral *E); 17088fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner llvm::Value *EmitObjCSelectorExpr(const ObjCSelectorExpr *E); 1709ef072fd2f3347cfd857d6eb787b245b950771430John McCall RValue EmitObjCMessageExpr(const ObjCMessageExpr *E, 1710ef072fd2f3347cfd857d6eb787b245b950771430John McCall ReturnValueSlot Return = ReturnValueSlot()); 17118fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner 17124029ca7ae9d3ffd7738fe2ed8782bebc30f36fd6Anders Carlsson /// EmitReferenceBindingToExpr - Emits a reference binding to the passed in 17134029ca7ae9d3ffd7738fe2ed8782bebc30f36fd6Anders Carlsson /// expression. Will emit a temporary variable if E is not an LValue. 17149cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer RValue EmitReferenceBindingToExpr(const Expr* E, 171532f36baa6c8d491c374af622b4e3ac28d597453cAnders Carlsson const NamedDecl *InitializedDecl); 17163aba09376c5f49c4c8d176109ea4835bc2c528eeAnders Carlsson 1717883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner //===--------------------------------------------------------------------===// 1718bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattner // Expression Emission 1719883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner //===--------------------------------------------------------------------===// 1720bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattner 1721bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattner // Expressions are broken into three classes: scalar, complex, aggregate. 17220dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 17230dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitScalarExpr - Emit the computation of the specified expression of LLVM 17240dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// scalar type, returning the result. 172514c5cbf59cffee52275230922283a247de407712Anders Carlsson llvm::Value *EmitScalarExpr(const Expr *E , bool IgnoreResultAssign = false); 17260dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 17273707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner /// EmitScalarConversion - Emit a conversion from the specified type to the 17283707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner /// specified destination type, both of which are LLVM scalar types. 17293707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner llvm::Value *EmitScalarConversion(llvm::Value *Src, QualType SrcTy, 17303707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner QualType DstTy); 17310dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 17324f1a7b380809b4ca19ad2daff61bc11cd1e979d8Chris Lattner /// EmitComplexToScalarConversion - Emit a conversion from the specified 17330dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// complex type to the specified destination type, where the destination type 17340dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// is an LLVM scalar type. 17354f1a7b380809b4ca19ad2daff61bc11cd1e979d8Chris Lattner llvm::Value *EmitComplexToScalarConversion(ComplexPairTy Src, QualType SrcTy, 17364f1a7b380809b4ca19ad2daff61bc11cd1e979d8Chris Lattner QualType DstTy); 17370dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 17380dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1739558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// EmitAggExpr - Emit the computation of the specified expression 1740558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// of aggregate type. The result is computed into the given slot, 1741558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// which may be null to indicate that the value is not needed. 1742474e2fe4957e6e72cee36ed189eaf21878ad0e91Fariborz Jahanian void EmitAggExpr(const Expr *E, AggValueSlot AS, bool IgnoreResult = false); 17430dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 174418aba0dd518e486d8b50523e7dafb4b5657135d2Daniel Dunbar /// EmitAggExprToLValue - Emit the computation of the specified expression of 174518aba0dd518e486d8b50523e7dafb4b5657135d2Daniel Dunbar /// aggregate type into a temporary LValue. 174618aba0dd518e486d8b50523e7dafb4b5657135d2Daniel Dunbar LValue EmitAggExprToLValue(const Expr *E); 174718aba0dd518e486d8b50523e7dafb4b5657135d2Daniel Dunbar 1748082b02e8403d3ee9d2ded969fbe0e5d472f04cd8Fariborz Jahanian /// EmitGCMemmoveCollectable - Emit special API for structs with object 1749082b02e8403d3ee9d2ded969fbe0e5d472f04cd8Fariborz Jahanian /// pointers. 1750082b02e8403d3ee9d2ded969fbe0e5d472f04cd8Fariborz Jahanian void EmitGCMemmoveCollectable(llvm::Value *DestPtr, llvm::Value *SrcPtr, 175108c321380fff07d476a19daab6d29522c046cd49Fariborz Jahanian QualType Ty); 1752082b02e8403d3ee9d2ded969fbe0e5d472f04cd8Fariborz Jahanian 1753b6ef18a2b06d6760459e1756a61f79ff496cee19Chris Lattner /// EmitComplexExpr - Emit the computation of the specified expression of 175423b1cdb0b5e089468bb8475b8ec9287af67b4b59Chris Lattner /// complex type, returning the result. 1755b418d74c11498b7e1044103131e2e3be4d63512eJohn McCall ComplexPairTy EmitComplexExpr(const Expr *E, 1756b418d74c11498b7e1044103131e2e3be4d63512eJohn McCall bool IgnoreReal = false, 1757b418d74c11498b7e1044103131e2e3be4d63512eJohn McCall bool IgnoreImag = false); 17580dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 175923b1cdb0b5e089468bb8475b8ec9287af67b4b59Chris Lattner /// EmitComplexExprIntoAddr - Emit the computation of the specified expression 176023b1cdb0b5e089468bb8475b8ec9287af67b4b59Chris Lattner /// of complex type, storing into the specified Value*. 1761190dbe203c2e892ac40f1786035c6c9be3f44a4cChris Lattner void EmitComplexExprIntoAddr(const Expr *E, llvm::Value *DestAddr, 1762190dbe203c2e892ac40f1786035c6c9be3f44a4cChris Lattner bool DestIsVolatile); 17637f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar 17647f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar /// StoreComplexToAddr - Store a complex number into the specified address. 17657f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar void StoreComplexToAddr(ComplexPairTy V, llvm::Value *DestAddr, 17667f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar bool DestIsVolatile); 17679b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// LoadComplexFromAddr - Load a complex number from the specified address. 17689b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner ComplexPairTy LoadComplexFromAddr(llvm::Value *SrcAddr, bool SrcIsVolatile); 17692621fd1d6d3c5eadcae246859f62738645df7540Chris Lattner 1770b6bbcc9995186799a60ce17d0c1acff31601653aJohn McCall /// CreateStaticVarDecl - Create a zero-initialized LLVM global for 1771b6bbcc9995186799a60ce17d0c1acff31601653aJohn McCall /// a static local variable. 1772b6bbcc9995186799a60ce17d0c1acff31601653aJohn McCall llvm::GlobalVariable *CreateStaticVarDecl(const VarDecl &D, 1773b6bbcc9995186799a60ce17d0c1acff31601653aJohn McCall const char *Separator, 1774f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump llvm::GlobalValue::LinkageTypes Linkage); 17759cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 1776b6bbcc9995186799a60ce17d0c1acff31601653aJohn McCall /// AddInitializerToStaticVarDecl - Add the initializer for 'D' to the 1777761acc19d966a67f2175783d09412d6ac9463400Chris Lattner /// global variable that has already been created for it. If the initializer 1778761acc19d966a67f2175783d09412d6ac9463400Chris Lattner /// has a different type than GV does, this may free GV and return a different 1779761acc19d966a67f2175783d09412d6ac9463400Chris Lattner /// one. Otherwise it just returns GV. 1780761acc19d966a67f2175783d09412d6ac9463400Chris Lattner llvm::GlobalVariable * 1781b6bbcc9995186799a60ce17d0c1acff31601653aJohn McCall AddInitializerToStaticVarDecl(const VarDecl &D, 1782b6bbcc9995186799a60ce17d0c1acff31601653aJohn McCall llvm::GlobalVariable *GV); 17839cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 17840096acf421c4609ce7f43e8b05f8c5ca866d4611Daniel Dunbar 17853b2e16b3d25f6b311dba2871e2a566c96238c3d2Anders Carlsson /// EmitCXXGlobalVarDeclInit - Create the initializer for a C++ 17863b2e16b3d25f6b311dba2871e2a566c96238c3d2Anders Carlsson /// variable with global storage. 17873b2e16b3d25f6b311dba2871e2a566c96238c3d2Anders Carlsson void EmitCXXGlobalVarDeclInit(const VarDecl &D, llvm::Constant *DeclPtr); 17883b2e16b3d25f6b311dba2871e2a566c96238c3d2Anders Carlsson 17893b2e16b3d25f6b311dba2871e2a566c96238c3d2Anders Carlsson /// EmitCXXGlobalDtorRegistration - Emits a call to register the global ptr 17903b2e16b3d25f6b311dba2871e2a566c96238c3d2Anders Carlsson /// with the C++ runtime so that its destructor will be called at exit. 179188f4280f6b60edcbdea6a38a3da8b17d66473ad6Fariborz Jahanian void EmitCXXGlobalDtorRegistration(llvm::Constant *DtorFn, 17923b2e16b3d25f6b311dba2871e2a566c96238c3d2Anders Carlsson llvm::Constant *DeclPtr); 17931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17943030eb82593097502469a8b3fc26112c79c75605John McCall /// Emit code in this function to perform a guarded variable 17953030eb82593097502469a8b3fc26112c79c75605John McCall /// initialization. Guarded initializations are used when it's not 17963030eb82593097502469a8b3fc26112c79c75605John McCall /// possible to prove that an initialization will be done exactly 17973030eb82593097502469a8b3fc26112c79c75605John McCall /// once, e.g. with a static local variable or a static data member 17983030eb82593097502469a8b3fc26112c79c75605John McCall /// of a class template. 17993030eb82593097502469a8b3fc26112c79c75605John McCall void EmitCXXGuardedInit(const VarDecl &D, llvm::GlobalVariable *DeclPtr); 18005cd91b513455fd7753e8815b54f0a49bbca6602dJohn McCall 1801efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar /// GenerateCXXGlobalInitFunc - Generates code for initializing global 1802efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar /// variables. 1803efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar void GenerateCXXGlobalInitFunc(llvm::Function *Fn, 1804efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar llvm::Constant **Decls, 1805efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar unsigned NumDecls); 1806efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar 1807efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar /// GenerateCXXGlobalDtorFunc - Generates code for destroying global 1808efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar /// variables. 1809efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar void GenerateCXXGlobalDtorFunc(llvm::Function *Fn, 1810810112e28dc839715d17b0a786f23aaa19600ac0Chris Lattner const std::vector<std::pair<llvm::WeakVH, 1811efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar llvm::Constant*> > &DtorsAndObjects); 1812efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar 18133030eb82593097502469a8b3fc26112c79c75605John McCall void GenerateCXXGlobalVarDeclInitFunc(llvm::Function *Fn, const VarDecl *D, 18143030eb82593097502469a8b3fc26112c79c75605John McCall llvm::GlobalVariable *Addr); 1815efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar 1816558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall void EmitCXXConstructExpr(const CXXConstructExpr *E, AggValueSlot Dest); 181734999876e215b22febc240b1a6dc054215d12f9cFariborz Jahanian 181834999876e215b22febc240b1a6dc054215d12f9cFariborz Jahanian void EmitSynthesizedCXXCopyCtor(llvm::Value *Dest, llvm::Value *Src, 1819830937bc1100fba7682f7c32c40512085870f50cFariborz Jahanian const Expr *Exp); 18201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18214765fa05b5652fcc4356371c2f481d0ea9a1b007John McCall RValue EmitExprWithCleanups(const ExprWithCleanups *E, 18224765fa05b5652fcc4356371c2f481d0ea9a1b007John McCall AggValueSlot Slot =AggValueSlot::ignored()); 18231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1824756b5c4f9d52642d87d1948bee58f97a4f795b24Anders Carlsson void EmitCXXThrowExpr(const CXXThrowExpr *E); 18251eb2e59338c4b9c0429fc39ca98662adc9e7a3f2Douglas Gregor 18260ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar //===--------------------------------------------------------------------===// 18270ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar // Internal Helpers 18280ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar //===--------------------------------------------------------------------===// 18290dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 18300946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner /// ContainsLabel - Return true if the statement contains a label in it. If 18310946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner /// this statement is not executed normally, it not containing a label means 18320946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner /// that we can just remove the code. 18330946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner static bool ContainsLabel(const Stmt *S, bool IgnoreCaseStmts = false); 18340dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 18354bc0455d826e9634b7a68c0d06146edd633c9453Daniel Dunbar /// ConstantFoldsToSimpleInteger - If the specified expression does not fold 183631a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// to a constant, or if it does but contains a label, return 0. If it 183731a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// constant folds to 'true' and does not contain a label, return 1, if it 183831a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// constant folds to 'false' and does not contain a label, return -1. 183931a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner int ConstantFoldsToSimpleInteger(const Expr *Cond); 18400dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 184131a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// EmitBranchOnBoolExpr - Emit a branch on a boolean condition (e.g. for an 184231a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// if statement) to the specified blocks. Based on the condition, this might 184331a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// try to simplify the codegen of the conditional based on the branch. 18449bc47e29dce8f095be7a6d07dbb02a5a7a112949Chris Lattner void EmitBranchOnBoolExpr(const Expr *Cond, llvm::BasicBlock *TrueBlock, 18454bc0455d826e9634b7a68c0d06146edd633c9453Daniel Dunbar llvm::BasicBlock *FalseBlock); 1846be07f60131bc6f8d6696f4644df1ef667a1730d5Mike Stump 184715037caa1542bb810ad54c653aeb80f61df7b00cMike Stump /// getTrapBB - Create a basic block that will call the trap intrinsic. We'll 184815037caa1542bb810ad54c653aeb80f61df7b00cMike Stump /// generate a branch around the created basic block as necessary. 18496c552c1d5f47fbba00e6268d96a26ad026f2da2aChris Lattner llvm::BasicBlock *getTrapBB(); 18509cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 185121c9ad9d29d08a287292c670e7c52bc522c7f8bbAnders Carlsson /// EmitCallArg - Emit a single call argument. 185221c9ad9d29d08a287292c670e7c52bc522c7f8bbAnders Carlsson RValue EmitCallArg(const Expr *E, QualType ArgType); 185321c9ad9d29d08a287292c670e7c52bc522c7f8bbAnders Carlsson 18542736071ea3a46f90e65c93418961611d96c10ab9John McCall /// EmitDelegateCallArg - We are performing a delegate call; that 18552736071ea3a46f90e65c93418961611d96c10ab9John McCall /// is, the current function is delegating to another one. Produce 18562736071ea3a46f90e65c93418961611d96c10ab9John McCall /// a r-value suitable for passing the given parameter. 18572736071ea3a46f90e65c93418961611d96c10ab9John McCall RValue EmitDelegateCallArg(const VarDecl *Param); 18582736071ea3a46f90e65c93418961611d96c10ab9John McCall 185931a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattnerprivate: 186029e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar void EmitReturnOfRValue(RValue RV, QualType Ty); 186129e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar 18625627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// ExpandTypeFromArgs - Reconstruct a structure of type \arg Ty 18635627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// from function arguments into \arg Dst. See ABIArgInfo::Expand. 18645627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// 18655627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// \param AI - The first function argument of the expansion. 18665627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// \return The argument following the last expanded function 18675627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// argument. 18680dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump llvm::Function::arg_iterator 18695627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar ExpandTypeFromArgs(QualType Ty, LValue Dst, 18705627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar llvm::Function::arg_iterator AI); 18715627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar 18720dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// ExpandTypeToArgs - Expand an RValue \arg Src, with the LLVM type for \arg 18730dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// Ty, into individual arguments on the provided vector \arg Args. See 18740dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// ABIArgInfo::Expand. 18750dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump void ExpandTypeToArgs(QualType Ty, RValue Src, 18765627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar llvm::SmallVector<llvm::Value*, 16> &Args); 1877c8c7b187adcd989e01a9fba1ebead6c2abd770c9Anders Carlsson 18781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump llvm::Value* EmitAsmInput(const AsmStmt &S, 1879b84e8a670ad1d00c0a34295c42ac700cdde04815Daniel Dunbar const TargetInfo::ConstraintInfo &Info, 1880c8c7b187adcd989e01a9fba1ebead6c2abd770c9Anders Carlsson const Expr *InputExpr, std::string &ConstraintStr); 18810dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 18826d7cfd7ef82e42ff30ee1dafd2883fd94e9f8294Eli Friedman llvm::Value* EmitAsmInputLValue(const AsmStmt &S, 18836d7cfd7ef82e42ff30ee1dafd2883fd94e9f8294Eli Friedman const TargetInfo::ConstraintInfo &Info, 18846d7cfd7ef82e42ff30ee1dafd2883fd94e9f8294Eli Friedman LValue InputValue, QualType InputType, 18856d7cfd7ef82e42ff30ee1dafd2883fd94e9f8294Eli Friedman std::string &ConstraintStr); 18866d7cfd7ef82e42ff30ee1dafd2883fd94e9f8294Eli Friedman 18870139bb96494b4c4ba0824617d5d2495dc7e44c76Anders Carlsson /// EmitCallArgs - Emit call arguments for a function. 18881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// The CallArgTypeInfo parameter is used for iterating over the known 1889af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson /// argument types of the function being called. 1890af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson template<typename T> 1891af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson void EmitCallArgs(CallArgList& Args, const T* CallArgTypeInfo, 18920139bb96494b4c4ba0824617d5d2495dc7e44c76Anders Carlsson CallExpr::const_arg_iterator ArgBeg, 1893af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson CallExpr::const_arg_iterator ArgEnd) { 1894af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson CallExpr::const_arg_iterator Arg = ArgBeg; 1895af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson 1896af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson // First, use the argument types that the type info knows about 1897af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson if (CallArgTypeInfo) { 1898af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson for (typename T::arg_type_iterator I = CallArgTypeInfo->arg_type_begin(), 1899af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson E = CallArgTypeInfo->arg_type_end(); I != E; ++I, ++Arg) { 190044b0a3e858af7b19f489619e52cd58970611cd15Eli Friedman assert(Arg != ArgEnd && "Running over edge of argument list!"); 1901af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson QualType ArgType = *I; 1902745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian#ifndef NDEBUG 1903745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian QualType ActualArgType = Arg->getType(); 1904745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian if (ArgType->isPointerType() && ActualArgType->isPointerType()) { 19059cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer QualType ActualBaseType = 1906745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian ActualArgType->getAs<PointerType>()->getPointeeType(); 19079cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer QualType ArgBaseType = 1908745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian ArgType->getAs<PointerType>()->getPointeeType(); 1909745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian if (ArgBaseType->isVariableArrayType()) { 1910745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian if (const VariableArrayType *VAT = 1911745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian getContext().getAsVariableArrayType(ActualBaseType)) { 1912745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian if (!VAT->getSizeExpr()) 1913745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian ActualArgType = ArgType; 1914745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian } 1915745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian } 1916745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian } 1917af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson assert(getContext().getCanonicalType(ArgType.getNonReferenceType()). 19181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getTypePtr() == 1919745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian getContext().getCanonicalType(ActualArgType).getTypePtr() && 1920af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson "type mismatch in call argument!"); 1921745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian#endif 19221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Args.push_back(std::make_pair(EmitCallArg(*Arg, ArgType), 1923af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson ArgType)); 1924af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson } 19251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Either we've emitted all the call args, or we have a call to a 1927af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson // variadic function. 19281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert((Arg == ArgEnd || CallArgTypeInfo->isVariadic()) && 1929af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson "Extra arguments in non-variadic function!"); 19301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1931af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson } 19321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1933af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson // If we still have any arguments, emit them using the type of the argument. 1934af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson for (; Arg != ArgEnd; ++Arg) { 1935af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson QualType ArgType = Arg->getType(); 1936af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson Args.push_back(std::make_pair(EmitCallArg(*Arg, ArgType), 1937af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson ArgType)); 1938af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson } 1939af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson } 1940492c4f998d848673d3d6c9e6416115df4036a71dJohn McCall 1941492c4f998d848673d3d6c9e6416115df4036a71dJohn McCall const TargetCodeGenInfo &getTargetHooks() const { 1942492c4f998d848673d3d6c9e6416115df4036a71dJohn McCall return CGM.getTargetCodeGenInfo(); 1943492c4f998d848673d3d6c9e6416115df4036a71dJohn McCall } 1944744016dde06fcffd50931e94a98c850f8b12cd87John McCall 1945744016dde06fcffd50931e94a98c850f8b12cd87John McCall void EmitDeclMetadata(); 19465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 19471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1948150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall/// Helper class with most of the code for saving a value for a 1949150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall/// conditional expression cleanup. 1950804b807ea918184d6de63bd745e1ff75a9bfc679John McCallstruct DominatingLLVMValue { 1951150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall typedef llvm::PointerIntPair<llvm::Value*, 1, bool> saved_type; 1952150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 1953150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// Answer whether the given value needs extra work to be saved. 1954150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall static bool needsSaving(llvm::Value *value) { 1955150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall // If it's not an instruction, we don't need to save. 1956150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall if (!isa<llvm::Instruction>(value)) return false; 1957150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 1958150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall // If it's an instruction in the entry block, we don't need to save. 1959150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall llvm::BasicBlock *block = cast<llvm::Instruction>(value)->getParent(); 1960150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall return (block != &block->getParent()->getEntryBlock()); 1961150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 1962150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 1963150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// Try to save the given value. 1964150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall static saved_type save(CodeGenFunction &CGF, llvm::Value *value) { 1965150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall if (!needsSaving(value)) return saved_type(value, false); 1966150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 1967150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall // Otherwise we need an alloca. 1968150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall llvm::Value *alloca = 1969150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall CGF.CreateTempAlloca(value->getType(), "cond-cleanup.save"); 1970150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall CGF.Builder.CreateStore(value, alloca); 1971150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 1972150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall return saved_type(alloca, true); 1973150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 1974150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 1975150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall static llvm::Value *restore(CodeGenFunction &CGF, saved_type value) { 1976150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall if (!value.getInt()) return value.getPointer(); 1977150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall return CGF.Builder.CreateLoad(value.getPointer()); 1978150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 1979150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall}; 1980150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 1981804b807ea918184d6de63bd745e1ff75a9bfc679John McCall/// A partial specialization of DominatingValue for llvm::Values that 1982804b807ea918184d6de63bd745e1ff75a9bfc679John McCall/// might be llvm::Instructions. 1983804b807ea918184d6de63bd745e1ff75a9bfc679John McCalltemplate <class T> struct DominatingPointer<T,true> : DominatingLLVMValue { 1984804b807ea918184d6de63bd745e1ff75a9bfc679John McCall typedef T *type; 1985804b807ea918184d6de63bd745e1ff75a9bfc679John McCall static type restore(CodeGenFunction &CGF, saved_type value) { 1986804b807ea918184d6de63bd745e1ff75a9bfc679John McCall return static_cast<T*>(DominatingLLVMValue::restore(CGF, value)); 1987804b807ea918184d6de63bd745e1ff75a9bfc679John McCall } 1988804b807ea918184d6de63bd745e1ff75a9bfc679John McCall}; 1989804b807ea918184d6de63bd745e1ff75a9bfc679John McCall 1990804b807ea918184d6de63bd745e1ff75a9bfc679John McCall/// A specialization of DominatingValue for RValue. 1991804b807ea918184d6de63bd745e1ff75a9bfc679John McCalltemplate <> struct DominatingValue<RValue> { 1992804b807ea918184d6de63bd745e1ff75a9bfc679John McCall typedef RValue type; 1993804b807ea918184d6de63bd745e1ff75a9bfc679John McCall class saved_type { 1994804b807ea918184d6de63bd745e1ff75a9bfc679John McCall enum Kind { ScalarLiteral, ScalarAddress, AggregateLiteral, 1995804b807ea918184d6de63bd745e1ff75a9bfc679John McCall AggregateAddress, ComplexAddress }; 1996804b807ea918184d6de63bd745e1ff75a9bfc679John McCall 1997804b807ea918184d6de63bd745e1ff75a9bfc679John McCall llvm::Value *Value; 1998804b807ea918184d6de63bd745e1ff75a9bfc679John McCall Kind K; 1999804b807ea918184d6de63bd745e1ff75a9bfc679John McCall saved_type(llvm::Value *v, Kind k) : Value(v), K(k) {} 2000804b807ea918184d6de63bd745e1ff75a9bfc679John McCall 2001804b807ea918184d6de63bd745e1ff75a9bfc679John McCall public: 2002804b807ea918184d6de63bd745e1ff75a9bfc679John McCall static bool needsSaving(RValue value); 2003804b807ea918184d6de63bd745e1ff75a9bfc679John McCall static saved_type save(CodeGenFunction &CGF, RValue value); 2004804b807ea918184d6de63bd745e1ff75a9bfc679John McCall RValue restore(CodeGenFunction &CGF); 2005804b807ea918184d6de63bd745e1ff75a9bfc679John McCall 2006804b807ea918184d6de63bd745e1ff75a9bfc679John McCall // implementations in CGExprCXX.cpp 2007804b807ea918184d6de63bd745e1ff75a9bfc679John McCall }; 2008804b807ea918184d6de63bd745e1ff75a9bfc679John McCall 2009804b807ea918184d6de63bd745e1ff75a9bfc679John McCall static bool needsSaving(type value) { 2010804b807ea918184d6de63bd745e1ff75a9bfc679John McCall return saved_type::needsSaving(value); 2011804b807ea918184d6de63bd745e1ff75a9bfc679John McCall } 2012804b807ea918184d6de63bd745e1ff75a9bfc679John McCall static saved_type save(CodeGenFunction &CGF, type value) { 2013804b807ea918184d6de63bd745e1ff75a9bfc679John McCall return saved_type::save(CGF, value); 2014804b807ea918184d6de63bd745e1ff75a9bfc679John McCall } 2015150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall static type restore(CodeGenFunction &CGF, saved_type value) { 2016804b807ea918184d6de63bd745e1ff75a9bfc679John McCall return value.restore(CGF); 2017150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 2018150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall}; 2019150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 202089ecd41e0a6bfb3b0913dbe41c3c666340b308c7Fariborz Jahanian/// CGBlockInfo - Information to generate a block literal. 202189ecd41e0a6bfb3b0913dbe41c3c666340b308c7Fariborz Jahanianclass CGBlockInfo { 202289ecd41e0a6bfb3b0913dbe41c3c666340b308c7Fariborz Jahanianpublic: 202389ecd41e0a6bfb3b0913dbe41c3c666340b308c7Fariborz Jahanian /// Name - The name of the block, kindof. 202489ecd41e0a6bfb3b0913dbe41c3c666340b308c7Fariborz Jahanian const char *Name; 20259cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 202689ecd41e0a6bfb3b0913dbe41c3c666340b308c7Fariborz Jahanian /// DeclRefs - Variables from parent scopes that have been 202789ecd41e0a6bfb3b0913dbe41c3c666340b308c7Fariborz Jahanian /// imported into this block. 202889ecd41e0a6bfb3b0913dbe41c3c666340b308c7Fariborz Jahanian llvm::SmallVector<const BlockDeclRefExpr *, 8> DeclRefs; 20299cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 203089ecd41e0a6bfb3b0913dbe41c3c666340b308c7Fariborz Jahanian /// InnerBlocks - This block and the blocks it encloses. 203189ecd41e0a6bfb3b0913dbe41c3c666340b308c7Fariborz Jahanian llvm::SmallPtrSet<const DeclContext *, 4> InnerBlocks; 20329cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 203389ecd41e0a6bfb3b0913dbe41c3c666340b308c7Fariborz Jahanian /// CXXThisRef - Non-null if 'this' was required somewhere, in 203489ecd41e0a6bfb3b0913dbe41c3c666340b308c7Fariborz Jahanian /// which case this is that expression. 203589ecd41e0a6bfb3b0913dbe41c3c666340b308c7Fariborz Jahanian const CXXThisExpr *CXXThisRef; 20369cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 203789ecd41e0a6bfb3b0913dbe41c3c666340b308c7Fariborz Jahanian /// NeedsObjCSelf - True if something in this block has an implicit 203889ecd41e0a6bfb3b0913dbe41c3c666340b308c7Fariborz Jahanian /// reference to 'self'. 203934999876e215b22febc240b1a6dc054215d12f9cFariborz Jahanian bool NeedsObjCSelf : 1; 204034999876e215b22febc240b1a6dc054215d12f9cFariborz Jahanian 204134999876e215b22febc240b1a6dc054215d12f9cFariborz Jahanian /// HasCXXObject - True if block has imported c++ object requiring copy 204234999876e215b22febc240b1a6dc054215d12f9cFariborz Jahanian /// construction in copy helper and destruction in copy dispose helpers. 204334999876e215b22febc240b1a6dc054215d12f9cFariborz Jahanian bool HasCXXObject : 1; 204434999876e215b22febc240b1a6dc054215d12f9cFariborz Jahanian 204589ecd41e0a6bfb3b0913dbe41c3c666340b308c7Fariborz Jahanian /// These are initialized by GenerateBlockFunction. 204634999876e215b22febc240b1a6dc054215d12f9cFariborz Jahanian bool BlockHasCopyDispose : 1; 204789ecd41e0a6bfb3b0913dbe41c3c666340b308c7Fariborz Jahanian CharUnits BlockSize; 204889ecd41e0a6bfb3b0913dbe41c3c666340b308c7Fariborz Jahanian CharUnits BlockAlign; 204989ecd41e0a6bfb3b0913dbe41c3c666340b308c7Fariborz Jahanian llvm::SmallVector<const Expr*, 8> BlockLayout; 20509cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 205189ecd41e0a6bfb3b0913dbe41c3c666340b308c7Fariborz Jahanian CGBlockInfo(const char *Name); 205289ecd41e0a6bfb3b0913dbe41c3c666340b308c7Fariborz Jahanian}; 20539cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 20545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace CodeGen 20555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace clang 20565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 20575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#endif 2058