CodeGenFunction.h revision 4b9c2d235fb9449e249d74f48ecfec601650de93
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" 21f85e193739c953358c865005855253af4f68a497John McCall#include "clang/Frontend/CodeGenOptions.h" 2214110477887e3dc168ffc6c191e72d705051f99ePeter Collingbourne#include "clang/Basic/ABI.h" 23481769b5dc102b0256b35581e787909ad5edfab5Chris Lattner#include "clang/Basic/TargetInfo.h" 244c7d9f1507d0f102bd4133bba63348636facd469Jay Foad#include "llvm/ADT/ArrayRef.h" 25481769b5dc102b0256b35581e787909ad5edfab5Chris Lattner#include "llvm/ADT/DenseMap.h" 26481769b5dc102b0256b35581e787909ad5edfab5Chris Lattner#include "llvm/ADT/SmallVector.h" 27481769b5dc102b0256b35581e787909ad5edfab5Chris Lattner#include "llvm/Support/ValueHandle.h" 28c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher#include "llvm/Support/Debug.h" 2969243825cb5c91ec7207256aa57ae327cfaf8cb2Owen Anderson#include "CodeGenModule.h" 3045d196b8387dcefc4df26cda114fa34c6528e928Daniel Dunbar#include "CGBuilder.h" 31c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher#include "CGDebugInfo.h" 328f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar#include "CGValue.h" 338f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar 345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace llvm { 35c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class BasicBlock; 36f21efe9088a0b3eda1209d1706529f6cb2073092Benjamin Kramer class LLVMContext; 37dd5c98f709837e5dd3da08d44d1ce407975df2cfDavid Chisnall class MDNode; 385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class Module; 39898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar class SwitchInst; 40259e9ccf882d11491ad149aec5e6d7a061c9f938Daniel Dunbar class Twine; 41ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar class Value; 42f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall class CallSite; 435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace clang { 468d308384a220c7dc81755c47cdcbdd87dac25d5bDevang Patel class APValue; 475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class ASTContext; 487267c1693abe7875b0c57268be05005ae013c6c9Anders Carlsson class CXXDestructorDecl; 49ad762fcdc16b9e4705b12b09d92b8c026212b906Richard Smith class CXXForRangeStmt; 506815e941998659a55c20c147861b0f437928c3d8Anders Carlsson class CXXTryStmt; 515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class Decl; 52ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner class LabelDecl; 53c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class EnumConstantDecl; 545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class FunctionDecl; 5572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor class FunctionProtoType; 56c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class LabelStmt; 57679a502d462ef819e6175b58e255ca3f3391e7cfFariborz Jahanian class ObjCContainerDecl; 5829e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar class ObjCInterfaceDecl; 5929e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar class ObjCIvarDecl; 60391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner class ObjCMethodDecl; 61fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian class ObjCImplementationDecl; 62af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar class ObjCPropertyImplDecl; 635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class TargetInfo; 64492c4f998d848673d3d6c9e6416115df4036a71dJohn McCall class TargetCodeGenInfo; 65c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class VarDecl; 6616f0049415ec596504891259e2a83e19871c0d52Chris Lattner class ObjCForCollectionStmt; 6716f0049415ec596504891259e2a83e19871c0d52Chris Lattner class ObjCAtTryStmt; 6816f0049415ec596504891259e2a83e19871c0d52Chris Lattner class ObjCAtThrowStmt; 6916f0049415ec596504891259e2a83e19871c0d52Chris Lattner class ObjCAtSynchronizedStmt; 70f85e193739c953358c865005855253af4f68a497John McCall class ObjCAutoreleasePoolStmt; 715549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek 725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace CodeGen { 73b84a06e68ffd71da22e3c75b6e4bbdba37816413Devang Patel class CodeGenTypes; 74bb36d331f439f49859efcfb4435c61762fbba6f9Daniel Dunbar class CGFunctionInfo; 750dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump class CGRecordLayout; 76ee5042903d53fa7b0fbc1902d0ea07d57c7775b1John McCall class CGBlockInfo; 774c40d98ab7acf5f27fa89b17bd8fc0ef7683df37John McCall class CGCXXABI; 78d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall class BlockFlags; 79d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall class BlockFieldFlags; 800dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 81f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall/// A branch fixup. These are required when emitting a goto to a 82f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall/// label which hasn't been emitted yet. The goto is optimistically 83f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall/// emitted as a branch to the basic block for the label, and (if it 84f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall/// occurs in a scope with non-trivial cleanups) a fixup is added to 85f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall/// the innermost cleanup. When a (normal) cleanup is popped, any 86f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall/// unresolved fixups in that scope are threaded through the cleanup. 87f1549f66a8216a78112286e3978cea2c29d6334cJohn McCallstruct BranchFixup { 88ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall /// The block containing the terminator which needs to be modified 89ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall /// into a switch if this fixup is resolved into the current scope. 90ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall /// If null, LatestBranch points directly to the destination. 91ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall llvm::BasicBlock *OptimisticBranchBlock; 92f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 93ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall /// The ultimate destination of the branch. 94f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// 95f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// This can be set to null to indicate that this fixup was 96f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// successfully resolved. 97f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *Destination; 98f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 99ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall /// The destination index value. 100ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall unsigned DestinationIndex; 101ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall 102ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall /// The initial branch of the fixup. 103ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall llvm::BranchInst *InitialBranch; 104f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall}; 105f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 106804b807ea918184d6de63bd745e1ff75a9bfc679John McCalltemplate <class T> struct InvariantValue { 107150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall typedef T type; 108150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall typedef T saved_type; 109150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall static bool needsSaving(type value) { return false; } 110150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall static saved_type save(CodeGenFunction &CGF, type value) { return value; } 111150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall static type restore(CodeGenFunction &CGF, saved_type value) { return value; } 112150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall}; 113804b807ea918184d6de63bd745e1ff75a9bfc679John McCall 114804b807ea918184d6de63bd745e1ff75a9bfc679John McCall/// A metaprogramming class for ensuring that a value will dominate an 115804b807ea918184d6de63bd745e1ff75a9bfc679John McCall/// arbitrary position in a function. 116804b807ea918184d6de63bd745e1ff75a9bfc679John McCalltemplate <class T> struct DominatingValue : InvariantValue<T> {}; 117804b807ea918184d6de63bd745e1ff75a9bfc679John McCall 118804b807ea918184d6de63bd745e1ff75a9bfc679John McCalltemplate <class T, bool mightBeInstruction = 119804b807ea918184d6de63bd745e1ff75a9bfc679John McCall llvm::is_base_of<llvm::Value, T>::value && 120804b807ea918184d6de63bd745e1ff75a9bfc679John McCall !llvm::is_base_of<llvm::Constant, T>::value && 121804b807ea918184d6de63bd745e1ff75a9bfc679John McCall !llvm::is_base_of<llvm::BasicBlock, T>::value> 122804b807ea918184d6de63bd745e1ff75a9bfc679John McCallstruct DominatingPointer; 123804b807ea918184d6de63bd745e1ff75a9bfc679John McCalltemplate <class T> struct DominatingPointer<T,false> : InvariantValue<T*> {}; 124804b807ea918184d6de63bd745e1ff75a9bfc679John McCall// template <class T> struct DominatingPointer<T,true> at end of file 125804b807ea918184d6de63bd745e1ff75a9bfc679John McCall 126804b807ea918184d6de63bd745e1ff75a9bfc679John McCalltemplate <class T> struct DominatingValue<T*> : DominatingPointer<T> {}; 127150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 128cd2d2b7814e0104ed41a8da159a06a8ca77b70d8John McCallenum CleanupKind { 129cd2d2b7814e0104ed41a8da159a06a8ca77b70d8John McCall EHCleanup = 0x1, 130cd2d2b7814e0104ed41a8da159a06a8ca77b70d8John McCall NormalCleanup = 0x2, 131cd2d2b7814e0104ed41a8da159a06a8ca77b70d8John McCall NormalAndEHCleanup = EHCleanup | NormalCleanup, 132cd2d2b7814e0104ed41a8da159a06a8ca77b70d8John McCall 133cd2d2b7814e0104ed41a8da159a06a8ca77b70d8John McCall InactiveCleanup = 0x4, 134cd2d2b7814e0104ed41a8da159a06a8ca77b70d8John McCall InactiveEHCleanup = EHCleanup | InactiveCleanup, 135cd2d2b7814e0104ed41a8da159a06a8ca77b70d8John McCall InactiveNormalCleanup = NormalCleanup | InactiveCleanup, 136cd2d2b7814e0104ed41a8da159a06a8ca77b70d8John McCall InactiveNormalAndEHCleanup = NormalAndEHCleanup | InactiveCleanup 137cd2d2b7814e0104ed41a8da159a06a8ca77b70d8John McCall}; 138da65ea86482bc116906edfb9ba1d7124f76cc867John McCall 139f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall/// A stack of scopes which respond to exceptions, including cleanups 140f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall/// and catch blocks. 141f1549f66a8216a78112286e3978cea2c29d6334cJohn McCallclass EHScopeStack { 142f1549f66a8216a78112286e3978cea2c29d6334cJohn McCallpublic: 143f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// A saved depth on the scope stack. This is necessary because 144f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// pushing scopes onto the stack invalidates iterators. 145f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall class stable_iterator { 146f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall friend class EHScopeStack; 147f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 148f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Offset from StartOfData to EndOfBuffer. 149f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall ptrdiff_t Size; 150f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 151f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall stable_iterator(ptrdiff_t Size) : Size(Size) {} 152f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 153f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall public: 154f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall static stable_iterator invalid() { return stable_iterator(-1); } 155f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall stable_iterator() : Size(-1) {} 156f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 157f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall bool isValid() const { return Size >= 0; } 158f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 159838d796d020f6a8cd2b2d1e2a0a85c83bbf29543John McCall /// Returns true if this scope encloses I. 160838d796d020f6a8cd2b2d1e2a0a85c83bbf29543John McCall /// Returns false if I is invalid. 161838d796d020f6a8cd2b2d1e2a0a85c83bbf29543John McCall /// This scope must be valid. 162ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall bool encloses(stable_iterator I) const { return Size <= I.Size; } 163838d796d020f6a8cd2b2d1e2a0a85c83bbf29543John McCall 164838d796d020f6a8cd2b2d1e2a0a85c83bbf29543John McCall /// Returns true if this scope strictly encloses I: that is, 165838d796d020f6a8cd2b2d1e2a0a85c83bbf29543John McCall /// if it encloses I and is not I. 166838d796d020f6a8cd2b2d1e2a0a85c83bbf29543John McCall /// Returns false is I is invalid. 167838d796d020f6a8cd2b2d1e2a0a85c83bbf29543John McCall /// This scope must be valid. 168ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall bool strictlyEncloses(stable_iterator I) const { return Size < I.Size; } 1691bda662cb37d9fe24be4b3cf8ea0f4e550e1f889John McCall 170f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall friend bool operator==(stable_iterator A, stable_iterator B) { 171f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return A.Size == B.Size; 172f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 173f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall friend bool operator!=(stable_iterator A, stable_iterator B) { 174f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return A.Size != B.Size; 175f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 176f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall }; 177f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 1781f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall /// Information for lazily generating a cleanup. Subclasses must be 1791f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall /// POD-like: cleanups will not be destructed, and they will be 1801f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall /// allocated on the cleanup stack and freely copied and moved 1811f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall /// around. 182da65ea86482bc116906edfb9ba1d7124f76cc867John McCall /// 1831f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall /// Cleanup implementations should generally be declared in an 184da65ea86482bc116906edfb9ba1d7124f76cc867John McCall /// anonymous namespace. 1851f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall class Cleanup { 186c4a1a8450a3613ef256a71b9d8305b41f79eef50John McCall // Anchor the construction vtable. 187c4a1a8450a3613ef256a71b9d8305b41f79eef50John McCall virtual void anchor(); 188da65ea86482bc116906edfb9ba1d7124f76cc867John McCall public: 189ad346f4f678ab1c3222425641d851dc63e9dfa1aJohn McCall /// Generation flags. 190ad346f4f678ab1c3222425641d851dc63e9dfa1aJohn McCall class Flags { 191ad346f4f678ab1c3222425641d851dc63e9dfa1aJohn McCall enum { 192ad346f4f678ab1c3222425641d851dc63e9dfa1aJohn McCall F_IsForEH = 0x1, 193ad346f4f678ab1c3222425641d851dc63e9dfa1aJohn McCall F_IsNormalCleanupKind = 0x2, 194ad346f4f678ab1c3222425641d851dc63e9dfa1aJohn McCall F_IsEHCleanupKind = 0x4 195ad346f4f678ab1c3222425641d851dc63e9dfa1aJohn McCall }; 196ad346f4f678ab1c3222425641d851dc63e9dfa1aJohn McCall unsigned flags; 197ad346f4f678ab1c3222425641d851dc63e9dfa1aJohn McCall 198ad346f4f678ab1c3222425641d851dc63e9dfa1aJohn McCall public: 199ad346f4f678ab1c3222425641d851dc63e9dfa1aJohn McCall Flags() : flags(0) {} 200ad346f4f678ab1c3222425641d851dc63e9dfa1aJohn McCall 201ad346f4f678ab1c3222425641d851dc63e9dfa1aJohn McCall /// isForEH - true if the current emission is for an EH cleanup. 202ad346f4f678ab1c3222425641d851dc63e9dfa1aJohn McCall bool isForEHCleanup() const { return flags & F_IsForEH; } 203ad346f4f678ab1c3222425641d851dc63e9dfa1aJohn McCall bool isForNormalCleanup() const { return !isForEHCleanup(); } 204ad346f4f678ab1c3222425641d851dc63e9dfa1aJohn McCall void setIsForEHCleanup() { flags |= F_IsForEH; } 205ad346f4f678ab1c3222425641d851dc63e9dfa1aJohn McCall 206ad346f4f678ab1c3222425641d851dc63e9dfa1aJohn McCall bool isNormalCleanupKind() const { return flags & F_IsNormalCleanupKind; } 207ad346f4f678ab1c3222425641d851dc63e9dfa1aJohn McCall void setIsNormalCleanupKind() { flags |= F_IsNormalCleanupKind; } 208ad346f4f678ab1c3222425641d851dc63e9dfa1aJohn McCall 209ad346f4f678ab1c3222425641d851dc63e9dfa1aJohn McCall /// isEHCleanupKind - true if the cleanup was pushed as an EH 210ad346f4f678ab1c3222425641d851dc63e9dfa1aJohn McCall /// cleanup. 211ad346f4f678ab1c3222425641d851dc63e9dfa1aJohn McCall bool isEHCleanupKind() const { return flags & F_IsEHCleanupKind; } 212ad346f4f678ab1c3222425641d851dc63e9dfa1aJohn McCall void setIsEHCleanupKind() { flags |= F_IsEHCleanupKind; } 213ad346f4f678ab1c3222425641d851dc63e9dfa1aJohn McCall }; 214ad346f4f678ab1c3222425641d851dc63e9dfa1aJohn McCall 215c4a1a8450a3613ef256a71b9d8305b41f79eef50John McCall // Provide a virtual destructor to suppress a very common warning 216c4a1a8450a3613ef256a71b9d8305b41f79eef50John McCall // that unfortunately cannot be suppressed without this. Cleanups 217c4a1a8450a3613ef256a71b9d8305b41f79eef50John McCall // should not rely on this destructor ever being called. 218c4a1a8450a3613ef256a71b9d8305b41f79eef50John McCall virtual ~Cleanup() {} 2193e29f96988b0438e42dba3790f61fb3df42d90cbJohn McCall 220da65ea86482bc116906edfb9ba1d7124f76cc867John McCall /// Emit the cleanup. For normal cleanups, this is run in the 221da65ea86482bc116906edfb9ba1d7124f76cc867John McCall /// same EH context as when the cleanup was pushed, i.e. the 222da65ea86482bc116906edfb9ba1d7124f76cc867John McCall /// immediately-enclosing context of the cleanup scope. For 223da65ea86482bc116906edfb9ba1d7124f76cc867John McCall /// EH cleanups, this is run in a terminate context. 224da65ea86482bc116906edfb9ba1d7124f76cc867John McCall /// 225da65ea86482bc116906edfb9ba1d7124f76cc867John McCall // \param IsForEHCleanup true if this is for an EH cleanup, false 226da65ea86482bc116906edfb9ba1d7124f76cc867John McCall /// if for a normal cleanup. 227ad346f4f678ab1c3222425641d851dc63e9dfa1aJohn McCall virtual void Emit(CodeGenFunction &CGF, Flags flags) = 0; 228da65ea86482bc116906edfb9ba1d7124f76cc867John McCall }; 229da65ea86482bc116906edfb9ba1d7124f76cc867John McCall 230150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// ConditionalCleanupN stores the saved form of its N parameters, 231150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// then restores them and performs the cleanup. 2323ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall template <class T, class A0> 2333ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall class ConditionalCleanup1 : public Cleanup { 234804b807ea918184d6de63bd745e1ff75a9bfc679John McCall typedef typename DominatingValue<A0>::saved_type A0_saved; 2353ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall A0_saved a0_saved; 2363ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall 237ad346f4f678ab1c3222425641d851dc63e9dfa1aJohn McCall void Emit(CodeGenFunction &CGF, Flags flags) { 238804b807ea918184d6de63bd745e1ff75a9bfc679John McCall A0 a0 = DominatingValue<A0>::restore(CGF, a0_saved); 239ad346f4f678ab1c3222425641d851dc63e9dfa1aJohn McCall T(a0).Emit(CGF, flags); 2403ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall } 2413ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall 2423ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall public: 2433ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall ConditionalCleanup1(A0_saved a0) 2443ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall : a0_saved(a0) {} 2453ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall }; 2463ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall 247150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall template <class T, class A0, class A1> 2483ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall class ConditionalCleanup2 : public Cleanup { 249804b807ea918184d6de63bd745e1ff75a9bfc679John McCall typedef typename DominatingValue<A0>::saved_type A0_saved; 250804b807ea918184d6de63bd745e1ff75a9bfc679John McCall typedef typename DominatingValue<A1>::saved_type A1_saved; 2514bbcbda302cba8b1b0d88c20d735d09b483bd005John McCall A0_saved a0_saved; 2524bbcbda302cba8b1b0d88c20d735d09b483bd005John McCall A1_saved a1_saved; 253150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 254ad346f4f678ab1c3222425641d851dc63e9dfa1aJohn McCall void Emit(CodeGenFunction &CGF, Flags flags) { 255804b807ea918184d6de63bd745e1ff75a9bfc679John McCall A0 a0 = DominatingValue<A0>::restore(CGF, a0_saved); 256804b807ea918184d6de63bd745e1ff75a9bfc679John McCall A1 a1 = DominatingValue<A1>::restore(CGF, a1_saved); 257ad346f4f678ab1c3222425641d851dc63e9dfa1aJohn McCall T(a0, a1).Emit(CGF, flags); 258150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 259150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 260150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall public: 2613ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall ConditionalCleanup2(A0_saved a0, A1_saved a1) 2623ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall : a0_saved(a0), a1_saved(a1) {} 263150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall }; 264150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 265d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor template <class T, class A0, class A1, class A2> 266d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor class ConditionalCleanup3 : public Cleanup { 267d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor typedef typename DominatingValue<A0>::saved_type A0_saved; 268d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor typedef typename DominatingValue<A1>::saved_type A1_saved; 269d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor typedef typename DominatingValue<A2>::saved_type A2_saved; 270d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor A0_saved a0_saved; 271d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor A1_saved a1_saved; 272d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor A2_saved a2_saved; 273d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor 274ad346f4f678ab1c3222425641d851dc63e9dfa1aJohn McCall void Emit(CodeGenFunction &CGF, Flags flags) { 275d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor A0 a0 = DominatingValue<A0>::restore(CGF, a0_saved); 276d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor A1 a1 = DominatingValue<A1>::restore(CGF, a1_saved); 277d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor A2 a2 = DominatingValue<A2>::restore(CGF, a2_saved); 278ad346f4f678ab1c3222425641d851dc63e9dfa1aJohn McCall T(a0, a1, a2).Emit(CGF, flags); 279d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor } 280d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor 281d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor public: 282d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor ConditionalCleanup3(A0_saved a0, A1_saved a1, A2_saved a2) 283c4a1a8450a3613ef256a71b9d8305b41f79eef50John McCall : a0_saved(a0), a1_saved(a1), a2_saved(a2) {} 284d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor }; 285d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor 2869928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall template <class T, class A0, class A1, class A2, class A3> 2879928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall class ConditionalCleanup4 : public Cleanup { 2889928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall typedef typename DominatingValue<A0>::saved_type A0_saved; 2899928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall typedef typename DominatingValue<A1>::saved_type A1_saved; 2909928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall typedef typename DominatingValue<A2>::saved_type A2_saved; 2919928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall typedef typename DominatingValue<A3>::saved_type A3_saved; 2929928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall A0_saved a0_saved; 2939928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall A1_saved a1_saved; 2949928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall A2_saved a2_saved; 2959928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall A3_saved a3_saved; 2969928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall 297ad346f4f678ab1c3222425641d851dc63e9dfa1aJohn McCall void Emit(CodeGenFunction &CGF, Flags flags) { 2989928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall A0 a0 = DominatingValue<A0>::restore(CGF, a0_saved); 2999928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall A1 a1 = DominatingValue<A1>::restore(CGF, a1_saved); 3009928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall A2 a2 = DominatingValue<A2>::restore(CGF, a2_saved); 3019928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall A3 a3 = DominatingValue<A3>::restore(CGF, a3_saved); 302ad346f4f678ab1c3222425641d851dc63e9dfa1aJohn McCall T(a0, a1, a2, a3).Emit(CGF, flags); 3039928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall } 3049928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall 3059928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall public: 3069928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall ConditionalCleanup4(A0_saved a0, A1_saved a1, A2_saved a2, A3_saved a3) 3079928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall : a0_saved(a0), a1_saved(a1), a2_saved(a2), a3_saved(a3) {} 3089928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall }; 3099928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall 310f1549f66a8216a78112286e3978cea2c29d6334cJohn McCallprivate: 311f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall // The implementation for this class is in CGException.h and 312f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall // CGException.cpp; the definition is here because it's used as a 313f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall // member of CodeGenFunction. 314f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 315f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// The start of the scope-stack buffer, i.e. the allocated pointer 316f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// for the buffer. All of these pointers are either simultaneously 317f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// null or simultaneously valid. 318f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall char *StartOfBuffer; 319f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 320f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// The end of the buffer. 321f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall char *EndOfBuffer; 322f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 323f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// The first valid entry in the buffer. 324f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall char *StartOfData; 325f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 326f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// The innermost normal cleanup on the stack. 327f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall stable_iterator InnermostNormalCleanup; 328f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 329777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall /// The innermost EH scope on the stack. 330777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall stable_iterator InnermostEHScope; 331ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall 332f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// The current set of branch fixups. A branch fixup is a jump to 333f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// an as-yet unemitted label, i.e. a label for which we don't yet 334f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// know the EH stack depth. Whenever we pop a cleanup, we have 335f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// to thread all the current branch fixups through it. 336f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// 337f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Fixups are recorded as the Use of the respective branch or 338f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// switch statement. The use points to the final destination. 339f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// When popping out of a cleanup, these uses are threaded through 340f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// the cleanup and adjusted to point to the new cleanup. 341f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// 342f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Note that branches are allowed to jump into protected scopes 343f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// in certain situations; e.g. the following code is legal: 344f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// struct A { ~A(); }; // trivial ctor, non-trivial dtor 345f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// goto foo; 346f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// A a; 347f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// foo: 348f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// bar(); 349686775deca8b8685eb90801495880e3abdd844c2Chris Lattner SmallVector<BranchFixup, 8> BranchFixups; 350f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 351f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall char *allocate(size_t Size); 352f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 3531f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall void *pushCleanup(CleanupKind K, size_t DataSize); 354da65ea86482bc116906edfb9ba1d7124f76cc867John McCall 355f1549f66a8216a78112286e3978cea2c29d6334cJohn McCallpublic: 356f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall EHScopeStack() : StartOfBuffer(0), EndOfBuffer(0), StartOfData(0), 357f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall InnermostNormalCleanup(stable_end()), 358777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall InnermostEHScope(stable_end()) {} 359f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall ~EHScopeStack() { delete[] StartOfBuffer; } 360f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 361da65ea86482bc116906edfb9ba1d7124f76cc867John McCall // Variadic templates would make this not terrible. 362da65ea86482bc116906edfb9ba1d7124f76cc867John McCall 363da65ea86482bc116906edfb9ba1d7124f76cc867John McCall /// Push a lazily-created cleanup on the stack. 3648e3f86193995c47ee0d229e4336c3382410f09f5John McCall template <class T> 3651f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall void pushCleanup(CleanupKind Kind) { 3661f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall void *Buffer = pushCleanup(Kind, sizeof(T)); 3671f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall Cleanup *Obj = new(Buffer) T(); 3688e3f86193995c47ee0d229e4336c3382410f09f5John McCall (void) Obj; 3698e3f86193995c47ee0d229e4336c3382410f09f5John McCall } 3708e3f86193995c47ee0d229e4336c3382410f09f5John McCall 3718e3f86193995c47ee0d229e4336c3382410f09f5John McCall /// Push a lazily-created cleanup on the stack. 3728e3f86193995c47ee0d229e4336c3382410f09f5John McCall template <class T, class A0> 3731f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall void pushCleanup(CleanupKind Kind, A0 a0) { 3741f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall void *Buffer = pushCleanup(Kind, sizeof(T)); 3751f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall Cleanup *Obj = new(Buffer) T(a0); 3768e3f86193995c47ee0d229e4336c3382410f09f5John McCall (void) Obj; 3778e3f86193995c47ee0d229e4336c3382410f09f5John McCall } 3788e3f86193995c47ee0d229e4336c3382410f09f5John McCall 3798e3f86193995c47ee0d229e4336c3382410f09f5John McCall /// Push a lazily-created cleanup on the stack. 380da65ea86482bc116906edfb9ba1d7124f76cc867John McCall template <class T, class A0, class A1> 3811f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall void pushCleanup(CleanupKind Kind, A0 a0, A1 a1) { 3821f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall void *Buffer = pushCleanup(Kind, sizeof(T)); 3831f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall Cleanup *Obj = new(Buffer) T(a0, a1); 384da65ea86482bc116906edfb9ba1d7124f76cc867John McCall (void) Obj; 385da65ea86482bc116906edfb9ba1d7124f76cc867John McCall } 386da65ea86482bc116906edfb9ba1d7124f76cc867John McCall 387da65ea86482bc116906edfb9ba1d7124f76cc867John McCall /// Push a lazily-created cleanup on the stack. 388da65ea86482bc116906edfb9ba1d7124f76cc867John McCall template <class T, class A0, class A1, class A2> 3891f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall void pushCleanup(CleanupKind Kind, A0 a0, A1 a1, A2 a2) { 3901f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall void *Buffer = pushCleanup(Kind, sizeof(T)); 3911f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall Cleanup *Obj = new(Buffer) T(a0, a1, a2); 392da65ea86482bc116906edfb9ba1d7124f76cc867John McCall (void) Obj; 393da65ea86482bc116906edfb9ba1d7124f76cc867John McCall } 394da65ea86482bc116906edfb9ba1d7124f76cc867John McCall 395da65ea86482bc116906edfb9ba1d7124f76cc867John McCall /// Push a lazily-created cleanup on the stack. 396da65ea86482bc116906edfb9ba1d7124f76cc867John McCall template <class T, class A0, class A1, class A2, class A3> 3971f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall void pushCleanup(CleanupKind Kind, A0 a0, A1 a1, A2 a2, A3 a3) { 3981f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall void *Buffer = pushCleanup(Kind, sizeof(T)); 3991f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall Cleanup *Obj = new(Buffer) T(a0, a1, a2, a3); 400da65ea86482bc116906edfb9ba1d7124f76cc867John McCall (void) Obj; 401da65ea86482bc116906edfb9ba1d7124f76cc867John McCall } 402da65ea86482bc116906edfb9ba1d7124f76cc867John McCall 40377199713ab56f87ffad9a535ff2a0877704eed87John McCall /// Push a lazily-created cleanup on the stack. 40477199713ab56f87ffad9a535ff2a0877704eed87John McCall template <class T, class A0, class A1, class A2, class A3, class A4> 4051f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall void pushCleanup(CleanupKind Kind, A0 a0, A1 a1, A2 a2, A3 a3, A4 a4) { 4061f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall void *Buffer = pushCleanup(Kind, sizeof(T)); 4071f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall Cleanup *Obj = new(Buffer) T(a0, a1, a2, a3, a4); 40877199713ab56f87ffad9a535ff2a0877704eed87John McCall (void) Obj; 40977199713ab56f87ffad9a535ff2a0877704eed87John McCall } 41077199713ab56f87ffad9a535ff2a0877704eed87John McCall 4117d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall // Feel free to add more variants of the following: 4127d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall 4137d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// Push a cleanup with non-constant storage requirements on the 4147d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// stack. The cleanup type must provide an additional static method: 4157d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// static size_t getExtraSize(size_t); 4167d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// The argument to this method will be the value N, which will also 4177d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// be passed as the first argument to the constructor. 4187d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// 4197d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// The data stored in the extra storage must obey the same 4207d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// restrictions as normal cleanup member data. 4217d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// 4227d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// The pointer returned from this method is valid until the cleanup 4237d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// stack is modified. 4247d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall template <class T, class A0, class A1, class A2> 4257d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall T *pushCleanupWithExtra(CleanupKind Kind, size_t N, A0 a0, A1 a1, A2 a2) { 4267d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall void *Buffer = pushCleanup(Kind, sizeof(T) + T::getExtraSize(N)); 4277d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall return new (Buffer) T(N, a0, a1, a2); 4287d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall } 4297d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall 430777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall /// Pops a cleanup scope off the stack. This is private to CGCleanup.cpp. 431f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall void popCleanup(); 432f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 433f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Push a set of catch handlers on the stack. The catch is 434f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// uninitialized and will need to have the given number of handlers 435f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// set on it. 436f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall class EHCatchScope *pushCatch(unsigned NumHandlers); 437f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 438777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall /// Pops a catch scope off the stack. This is private to CGException.cpp. 439f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall void popCatch(); 440f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 441f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Push an exceptions filter on the stack. 442f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall class EHFilterScope *pushFilter(unsigned NumFilters); 443f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 444f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Pops an exceptions filter off the stack. 445f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall void popFilter(); 446f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 447f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Push a terminate handler on the stack. 448f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall void pushTerminate(); 449f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 450f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Pops a terminate handler off the stack. 451f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall void popTerminate(); 452f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 453f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Determines whether the exception-scopes stack is empty. 454f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall bool empty() const { return StartOfData == EndOfBuffer; } 455f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 456f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall bool requiresLandingPad() const { 457777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall return InnermostEHScope != stable_end(); 458f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 459f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 460f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Determines whether there are any normal cleanups on the stack. 461f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall bool hasNormalCleanups() const { 462f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return InnermostNormalCleanup != stable_end(); 463f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 464f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 465f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Returns the innermost normal cleanup on the stack, or 466f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// stable_end() if there are no normal cleanups. 467f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall stable_iterator getInnermostNormalCleanup() const { 468f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return InnermostNormalCleanup; 469f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 470777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall stable_iterator getInnermostActiveNormalCleanup() const; 471f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 472777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall stable_iterator getInnermostEHScope() const { 473777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall return InnermostEHScope; 474f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 475f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 476777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall stable_iterator getInnermostActiveEHScope() const; 477f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 478f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// An unstable reference to a scope-stack depth. Invalidated by 479f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// pushes but not pops. 480f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall class iterator; 481f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 482f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Returns an iterator pointing to the innermost EH scope. 483f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall iterator begin() const; 484f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 485f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Returns an iterator pointing to the outermost EH scope. 486f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall iterator end() const; 487f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 488f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Create a stable reference to the top of the EH stack. The 489f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// returned reference is valid until that scope is popped off the 490f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// stack. 491f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall stable_iterator stable_begin() const { 492f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return stable_iterator(EndOfBuffer - StartOfData); 493f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 494f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 495f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Create a stable reference to the bottom of the EH stack. 496f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall static stable_iterator stable_end() { 497f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return stable_iterator(0); 498f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 499f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 500f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Translates an iterator into a stable_iterator. 501f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall stable_iterator stabilize(iterator it) const; 502f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 503f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Turn a stable reference to a scope depth into a unstable pointer 504f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// to the EH stack. 505f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall iterator find(stable_iterator save) const; 506f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 507f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Removes the cleanup pointed to by the given stable_iterator. 508f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall void removeCleanup(stable_iterator save); 509f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 510f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Add a branch fixup to the current cleanup scope. 511f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall BranchFixup &addBranchFixup() { 512f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall assert(hasNormalCleanups() && "adding fixup in scope without cleanups"); 513f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall BranchFixups.push_back(BranchFixup()); 514f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return BranchFixups.back(); 515f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 516f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 517f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall unsigned getNumBranchFixups() const { return BranchFixups.size(); } 518f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall BranchFixup &getBranchFixup(unsigned I) { 519f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall assert(I < getNumBranchFixups()); 520f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return BranchFixups[I]; 521f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 522f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 523ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall /// Pops lazily-removed fixups from the end of the list. This 524ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall /// should only be called by procedures which have just popped a 525ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall /// cleanup or resolved one or more fixups. 526ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall void popNullFixups(); 527ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall 528ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall /// Clears the branch-fixups list. This should only be called by 5298abdbd8118e37e759d1ce3f5814ee0a24b1589e8John McCall /// ResolveAllBranchFixups. 530ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall void clearFixups() { BranchFixups.clear(); } 531f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall}; 532f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 5335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// CodeGenFunction - This class organizes the per-function state that is used 5345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// while generating LLVM code. 5355936e33bf74dd6bf126ceee0f6169a2593d03a69John McCallclass CodeGenFunction : public CodeGenTypeCache { 5368a219ceda2b5afd447e7199b9c53079bead31b89Anders Carlsson CodeGenFunction(const CodeGenFunction&); // DO NOT IMPLEMENT 5378a219ceda2b5afd447e7199b9c53079bead31b89Anders Carlsson void operator=(const CodeGenFunction&); // DO NOT IMPLEMENT 5384c40d98ab7acf5f27fa89b17bd8fc0ef7683df37John McCall 5394c40d98ab7acf5f27fa89b17bd8fc0ef7683df37John McCall friend class CGCXXABI; 540bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattnerpublic: 541ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall /// A jump destination is an abstract label, branching to which may 542ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall /// require a jump out through normal cleanups. 543f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall struct JumpDest { 544ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall JumpDest() : Block(0), ScopeDepth(), Index(0) {} 545ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall JumpDest(llvm::BasicBlock *Block, 546ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall EHScopeStack::stable_iterator Depth, 547ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall unsigned Index) 548ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall : Block(Block), ScopeDepth(Depth), Index(Index) {} 549ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall 550ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall bool isValid() const { return Block != 0; } 551ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall llvm::BasicBlock *getBlock() const { return Block; } 552ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall EHScopeStack::stable_iterator getScopeDepth() const { return ScopeDepth; } 553ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall unsigned getDestIndex() const { return Index; } 5549cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 555ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall private: 556f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *Block; 557f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall EHScopeStack::stable_iterator ScopeDepth; 558ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall unsigned Index; 559ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall }; 560ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall 5615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CodeGenModule &CGM; // Per-module state. 562444be7366d0a1e172c0290a1ea54c1cb16b5947cDaniel Dunbar const TargetInfo &Target; 5630dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 56458dee10ed2eee34035f62d1c2d32b3639e9182f8Chris Lattner typedef std::pair<llvm::Value *, llvm::Value *> ComplexPairTy; 56545d196b8387dcefc4df26cda114fa34c6528e928Daniel Dunbar CGBuilderTy Builder; 5660dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 567b5437d238752dc297e42410e98d38d5250fe0463Chris Lattner /// CurFuncDecl - Holds the Decl for the current function or ObjC method. 568b5437d238752dc297e42410e98d38d5250fe0463Chris Lattner /// This excludes BlockDecls. 5694111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner const Decl *CurFuncDecl; 570b5437d238752dc297e42410e98d38d5250fe0463Chris Lattner /// CurCodeDecl - This is the inner-most code context, which includes blocks. 571b5437d238752dc297e42410e98d38d5250fe0463Chris Lattner const Decl *CurCodeDecl; 57288b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar const CGFunctionInfo *CurFnInfo; 573391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner QualType FnRetTy; 5745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::Function *CurFn; 5755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5766a1e0eb557d47e85185e09bdf8721f53f4bf9c9cMike Stump /// CurGD - The GlobalDecl for the current function being compiled. 5776a1e0eb557d47e85185e09bdf8721f53f4bf9c9cMike Stump GlobalDecl CurGD; 5786a1e0eb557d47e85185e09bdf8721f53f4bf9c9cMike Stump 579f85e193739c953358c865005855253af4f68a497John McCall /// PrologueCleanupDepth - The cleanup depth enclosing all the 580f85e193739c953358c865005855253af4f68a497John McCall /// cleanups associated with the parameters. 581f85e193739c953358c865005855253af4f68a497John McCall EHScopeStack::stable_iterator PrologueCleanupDepth; 582f85e193739c953358c865005855253af4f68a497John McCall 5835ca2084cf9b529563209429857f01fdae9dcdfa5Daniel Dunbar /// ReturnBlock - Unified return block. 584f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall JumpDest ReturnBlock; 585f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 5860dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// ReturnValue - The temporary alloca to hold the return value. This is null 5870dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// iff the function has no return value. 588b17daf9ab790ae71aacad2cc4aa11cd8d86c25d1Eli Friedman llvm::Value *ReturnValue; 5890dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 5905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// AllocaInsertPoint - This is an instruction in the entry block before which 5915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// we prefer to insert allocas. 592481769b5dc102b0256b35581e787909ad5edfab5Chris Lattner llvm::AssertingVH<llvm::Instruction> AllocaInsertPt; 5930ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar 5949c276ae0f24d4cee8f7954069d4b8eae45d0447dMike Stump bool CatchUndefined; 5959cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 596f85e193739c953358c865005855253af4f68a497John McCall /// In ARC, whether we should autorelease the return value. 597f85e193739c953358c865005855253af4f68a497John McCall bool AutoreleaseResult; 598f85e193739c953358c865005855253af4f68a497John McCall 599d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall const CodeGen::CGBlockInfo *BlockInfo; 600d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall llvm::Value *BlockPointer; 601d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall 6023d91bbcdab155181556969cad6ec97014405acedDouglas Gregor /// \brief A mapping from NRVO variables to the flags used to indicate 6033d91bbcdab155181556969cad6ec97014405acedDouglas Gregor /// when the NRVO has been applied to this variable. 6043d91bbcdab155181556969cad6ec97014405acedDouglas Gregor llvm::DenseMap<const VarDecl *, llvm::Value *> NRVOFlags; 6059cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 606f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall EHScopeStack EHStack; 6070dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 608ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall /// i32s containing the indexes of the cleanup destinations. 609ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall llvm::AllocaInst *NormalCleanupDest; 610ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall 611ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall unsigned NextCleanupDestIndex; 612ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall 613777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall /// EHResumeBlock - Unified block containing a call to llvm.eh.resume. 614777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall llvm::BasicBlock *EHResumeBlock; 615777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall 616285cfd8953d4ca4da613a47a0d691f7234068f8cBill Wendling /// The exception slot. All landing pads write the current exception pointer 617285cfd8953d4ca4da613a47a0d691f7234068f8cBill Wendling /// into this alloca. 618f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::Value *ExceptionSlot; 6190dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 620285cfd8953d4ca4da613a47a0d691f7234068f8cBill Wendling /// The selector slot. Under the MandatoryCleanup model, all landing pads 621285cfd8953d4ca4da613a47a0d691f7234068f8cBill Wendling /// write the current selector value into this alloca. 62293c332a8ba2c193c435b293966d343dab15f555bJohn McCall llvm::AllocaInst *EHSelectorSlot; 62393c332a8ba2c193c435b293966d343dab15f555bJohn McCall 624f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Emits a landing pad for the current EH stack. 625f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *EmitLandingPad(); 6260dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 627f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *getInvokeDestImpl(); 62899533834ba8f3658559f334e68a518ebb6388ceaMike Stump 6293ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall /// Set up the last cleaup that was pushed as a conditional 6303ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall /// full-expression cleanup. 6313ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall void initFullExprCleanup(); 632150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 633150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall template <class T> 634804b807ea918184d6de63bd745e1ff75a9bfc679John McCall typename DominatingValue<T>::saved_type saveValueInCond(T value) { 635804b807ea918184d6de63bd745e1ff75a9bfc679John McCall return DominatingValue<T>::save(*this, value); 636150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 637150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 638f1549f66a8216a78112286e3978cea2c29d6334cJohn McCallpublic: 639f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// ObjCEHValueStack - Stack of Objective-C exception values, used for 640f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// rethrows. 641686775deca8b8685eb90801495880e3abdd844c2Chris Lattner SmallVector<llvm::Value*, 8> ObjCEHValueStack; 642bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson 643d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall /// A class controlling the emission of a finally block. 644d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall class FinallyInfo { 645d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall /// Where the catchall's edge through the cleanup should go. 646d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall JumpDest RethrowDest; 647d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall 648d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall /// A function to call to enter the catch. 649d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall llvm::Constant *BeginCatchFn; 650d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall 651d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall /// An i1 variable indicating whether or not the @finally is 652d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall /// running for an exception. 653d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall llvm::AllocaInst *ForEHVar; 654d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump 655d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall /// An i8* variable into which the exception pointer to rethrow 656d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall /// has been saved. 657d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall llvm::AllocaInst *SavedExnVar; 658d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall 659d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall public: 660d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall void enter(CodeGenFunction &CGF, const Stmt *Finally, 661d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall llvm::Constant *beginCatchFn, llvm::Constant *endCatchFn, 662d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall llvm::Constant *rethrowFn); 663d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall void exit(CodeGenFunction &CGF); 664d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall }; 665f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 666150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// pushFullExprCleanup - Push a cleanup to be run at the end of the 667150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// current full-expression. Safe against the possibility that 668150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// we're currently inside a conditionally-evaluated expression. 6693ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall template <class T, class A0> 6703ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall void pushFullExprCleanup(CleanupKind kind, A0 a0) { 6713ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall // If we're not in a conditional branch, or if none of the 6723ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall // arguments requires saving, then use the unconditional cleanup. 673c4a1a8450a3613ef256a71b9d8305b41f79eef50John McCall if (!isInConditionalBranch()) 674c4a1a8450a3613ef256a71b9d8305b41f79eef50John McCall return EHStack.pushCleanup<T>(kind, a0); 6753ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall 676804b807ea918184d6de63bd745e1ff75a9bfc679John McCall typename DominatingValue<A0>::saved_type a0_saved = saveValueInCond(a0); 6773ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall 6783ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall typedef EHScopeStack::ConditionalCleanup1<T, A0> CleanupType; 6793ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall EHStack.pushCleanup<CleanupType>(kind, a0_saved); 6803ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall initFullExprCleanup(); 6813ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall } 6823ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall 6833ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall /// pushFullExprCleanup - Push a cleanup to be run at the end of the 6843ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall /// current full-expression. Safe against the possibility that 6853ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall /// we're currently inside a conditionally-evaluated expression. 686150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall template <class T, class A0, class A1> 687150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall void pushFullExprCleanup(CleanupKind kind, A0 a0, A1 a1) { 688150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall // If we're not in a conditional branch, or if none of the 689150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall // arguments requires saving, then use the unconditional cleanup. 690c4a1a8450a3613ef256a71b9d8305b41f79eef50John McCall if (!isInConditionalBranch()) 691c4a1a8450a3613ef256a71b9d8305b41f79eef50John McCall return EHStack.pushCleanup<T>(kind, a0, a1); 692150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 693804b807ea918184d6de63bd745e1ff75a9bfc679John McCall typename DominatingValue<A0>::saved_type a0_saved = saveValueInCond(a0); 694804b807ea918184d6de63bd745e1ff75a9bfc679John McCall typename DominatingValue<A1>::saved_type a1_saved = saveValueInCond(a1); 695150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 696150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall typedef EHScopeStack::ConditionalCleanup2<T, A0, A1> CleanupType; 6973ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall EHStack.pushCleanup<CleanupType>(kind, a0_saved, a1_saved); 6983ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall initFullExprCleanup(); 699150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 700150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 701d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor /// pushFullExprCleanup - Push a cleanup to be run at the end of the 702d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor /// current full-expression. Safe against the possibility that 703d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor /// we're currently inside a conditionally-evaluated expression. 704d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor template <class T, class A0, class A1, class A2> 705d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor void pushFullExprCleanup(CleanupKind kind, A0 a0, A1 a1, A2 a2) { 706d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor // If we're not in a conditional branch, or if none of the 707d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor // arguments requires saving, then use the unconditional cleanup. 708d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor if (!isInConditionalBranch()) { 709c4a1a8450a3613ef256a71b9d8305b41f79eef50John McCall return EHStack.pushCleanup<T>(kind, a0, a1, a2); 710d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor } 711d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor 712d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor typename DominatingValue<A0>::saved_type a0_saved = saveValueInCond(a0); 713d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor typename DominatingValue<A1>::saved_type a1_saved = saveValueInCond(a1); 714d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor typename DominatingValue<A2>::saved_type a2_saved = saveValueInCond(a2); 715d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor 716d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor typedef EHScopeStack::ConditionalCleanup3<T, A0, A1, A2> CleanupType; 717d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor EHStack.pushCleanup<CleanupType>(kind, a0_saved, a1_saved, a2_saved); 718d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor initFullExprCleanup(); 719d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor } 720d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor 7219928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall /// pushFullExprCleanup - Push a cleanup to be run at the end of the 7229928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall /// current full-expression. Safe against the possibility that 7239928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall /// we're currently inside a conditionally-evaluated expression. 7249928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall template <class T, class A0, class A1, class A2, class A3> 7259928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall void pushFullExprCleanup(CleanupKind kind, A0 a0, A1 a1, A2 a2, A3 a3) { 7269928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall // If we're not in a conditional branch, or if none of the 7279928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall // arguments requires saving, then use the unconditional cleanup. 7289928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall if (!isInConditionalBranch()) { 7299928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall return EHStack.pushCleanup<T>(kind, a0, a1, a2, a3); 7309928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall } 7319928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall 7329928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall typename DominatingValue<A0>::saved_type a0_saved = saveValueInCond(a0); 7339928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall typename DominatingValue<A1>::saved_type a1_saved = saveValueInCond(a1); 7349928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall typename DominatingValue<A2>::saved_type a2_saved = saveValueInCond(a2); 7359928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall typename DominatingValue<A3>::saved_type a3_saved = saveValueInCond(a3); 7369928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall 7379928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall typedef EHScopeStack::ConditionalCleanup4<T, A0, A1, A2, A3> CleanupType; 7389928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall EHStack.pushCleanup<CleanupType>(kind, a0_saved, a1_saved, 7399928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall a2_saved, a3_saved); 7409928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall initFullExprCleanup(); 7419928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall } 7429928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall 743f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// PushDestructorCleanup - Push a cleanup to call the 744f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// complete-object destructor of an object of the given type at the 745f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// given address. Does nothing if T is not a C++ class type with a 746f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// non-trivial destructor. 747f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall void PushDestructorCleanup(QualType T, llvm::Value *Addr); 748f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 74981407d404a3fc8d24d0e2a052d85cae183033e2bJohn McCall /// PushDestructorCleanup - Push a cleanup to call the 75081407d404a3fc8d24d0e2a052d85cae183033e2bJohn McCall /// complete-object variant of the given destructor on the object at 75181407d404a3fc8d24d0e2a052d85cae183033e2bJohn McCall /// the given address. 75281407d404a3fc8d24d0e2a052d85cae183033e2bJohn McCall void PushDestructorCleanup(const CXXDestructorDecl *Dtor, 75381407d404a3fc8d24d0e2a052d85cae183033e2bJohn McCall llvm::Value *Addr); 75481407d404a3fc8d24d0e2a052d85cae183033e2bJohn McCall 755f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// PopCleanupBlock - Will pop the cleanup entry on the stack and 756f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// process all branch fixups. 757ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall void PopCleanupBlock(bool FallThroughIsBranchThrough = false); 758f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 7597d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// DeactivateCleanupBlock - Deactivates the given cleanup block. 7607d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// The block cannot be reactivated. Pops it if it's the top of the 7617d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// stack. 7627d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall void DeactivateCleanupBlock(EHScopeStack::stable_iterator Cleanup); 7637d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall 7647d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// ActivateCleanupBlock - Activates an initially-inactive cleanup. 7657d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// Cannot be used to resurrect a deactivated cleanup. 7667d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall void ActivateCleanupBlock(EHScopeStack::stable_iterator Cleanup); 767cd2d2b7814e0104ed41a8da159a06a8ca77b70d8John McCall 768f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// \brief Enters a new scope for capturing cleanups, all of which 769f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// will be executed once the scope is exited. 770f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall class RunCleanupsScope { 771f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall EHScopeStack::stable_iterator CleanupStackDepth; 77201234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor bool OldDidCallStackSave; 7735656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor bool PerformCleanup; 77401234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor 775f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall RunCleanupsScope(const RunCleanupsScope &); // DO NOT IMPLEMENT 776f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall RunCleanupsScope &operator=(const RunCleanupsScope &); // DO NOT IMPLEMENT 77701234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor 778c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher protected: 779c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher CodeGenFunction& CGF; 780c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher 78101234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor public: 78201234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor /// \brief Enter a new cleanup scope. 7839cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer explicit RunCleanupsScope(CodeGenFunction &CGF) 784c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher : PerformCleanup(true), CGF(CGF) 7855656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor { 786f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall CleanupStackDepth = CGF.EHStack.stable_begin(); 78701234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor OldDidCallStackSave = CGF.DidCallStackSave; 7884ada2ca7d82dab68d3646f3eb6dcdfee072e8ea4Argyrios Kyrtzidis CGF.DidCallStackSave = false; 78901234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor } 79001234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor 79101234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor /// \brief Exit this cleanup scope, emitting any accumulated 79201234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor /// cleanups. 793f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall ~RunCleanupsScope() { 7945656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor if (PerformCleanup) { 7955656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor CGF.DidCallStackSave = OldDidCallStackSave; 796f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall CGF.PopCleanupBlocks(CleanupStackDepth); 7975656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor } 7985656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor } 7995656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor 8005656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor /// \brief Determine whether this scope requires any cleanups. 8015656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor bool requiresCleanups() const { 802f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return CGF.EHStack.stable_begin() != CleanupStackDepth; 8035656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor } 8045656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor 8055656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor /// \brief Force the emission of cleanups now, instead of waiting 8065656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor /// until this object is destroyed. 8075656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor void ForceCleanup() { 8085656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor assert(PerformCleanup && "Already forced cleanup"); 80901234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor CGF.DidCallStackSave = OldDidCallStackSave; 810f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall CGF.PopCleanupBlocks(CleanupStackDepth); 8115656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor PerformCleanup = false; 81201234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor } 81301234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor }; 81401234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor 815c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher class LexicalScope: protected RunCleanupsScope { 816c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher SourceRange Range; 817c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher bool PopDebugStack; 818c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher 819c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher LexicalScope(const LexicalScope &); // DO NOT IMPLEMENT THESE 820c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher LexicalScope &operator=(const LexicalScope &); 821c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher 822c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher public: 823c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher /// \brief Enter a new cleanup scope. 824c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher explicit LexicalScope(CodeGenFunction &CGF, SourceRange Range) 825c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher : RunCleanupsScope(CGF), Range(Range), PopDebugStack(true) { 826c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher if (CGDebugInfo *DI = CGF.getDebugInfo()) 827c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher DI->EmitLexicalBlockStart(CGF.Builder, Range.getBegin()); 828c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher } 829c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher 830c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher /// \brief Exit this cleanup scope, emitting any accumulated 831c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher /// cleanups. 832c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher ~LexicalScope() { 833c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher if (PopDebugStack) { 834c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher CGDebugInfo *DI = CGF.getDebugInfo(); 835c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher if (DI) DI->EmitLexicalBlockEnd(CGF.Builder, Range.getEnd()); 836c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher } 837c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher } 838c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher 839c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher /// \brief Force the emission of cleanups now, instead of waiting 840c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher /// until this object is destroyed. 841c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher void ForceCleanup() { 842c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher RunCleanupsScope::ForceCleanup(); 843c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher if (CGDebugInfo *DI = CGF.getDebugInfo()) { 844c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher DI->EmitLexicalBlockEnd(CGF.Builder, Range.getEnd()); 845c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher PopDebugStack = false; 846c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher } 847c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher } 848c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher }; 849c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher 85044ec82b4a1597802f5bf17721481b8c265bc8dc5Anders Carlsson 851f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// PopCleanupBlocks - Takes the old cleanup stack size and emits 852f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// the cleanup blocks that have been added. 853f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall void PopCleanupBlocks(EHScopeStack::stable_iterator OldCleanupStackSize); 85444ec82b4a1597802f5bf17721481b8c265bc8dc5Anders Carlsson 855ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall void ResolveBranchFixups(llvm::BasicBlock *Target); 856ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall 857f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// The given basic block lies in the current EH scope, but may be a 858f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// target of a potentially scope-crossing jump; get a stable handle 859f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// to which we can perform this jump later. 860ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall JumpDest getJumpDestInCurrentScope(llvm::BasicBlock *Target) { 861413e67778d593215d2f2161a4e712c8568f1ddd0John McCall return JumpDest(Target, 862413e67778d593215d2f2161a4e712c8568f1ddd0John McCall EHStack.getInnermostNormalCleanup(), 863413e67778d593215d2f2161a4e712c8568f1ddd0John McCall NextCleanupDestIndex++); 864f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 865c71c845fe77ee1f891d60232ec320912d88557eeAnders Carlsson 866f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// The given basic block lies in the current EH scope, but may be a 867f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// target of a potentially scope-crossing jump; get a stable handle 868f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// to which we can perform this jump later. 869686775deca8b8685eb90801495880e3abdd844c2Chris Lattner JumpDest getJumpDestInCurrentScope(StringRef Name = StringRef()) { 870ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall return getJumpDestInCurrentScope(createBasicBlock(Name)); 871f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 872f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 873f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// EmitBranchThroughCleanup - Emit a branch from the current insert 874f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// block through the normal cleanup handling code (if any) and then 875f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// on to \arg Dest. 876f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall void EmitBranchThroughCleanup(JumpDest Dest); 877b11f9198111796ada02b57f62cdea92134fde9f7Chris Lattner 878b11f9198111796ada02b57f62cdea92134fde9f7Chris Lattner /// isObviouslyBranchWithoutCleanups - Return true if a branch to the 879b11f9198111796ada02b57f62cdea92134fde9f7Chris Lattner /// specified destination obviously has no cleanups to run. 'false' is always 880b11f9198111796ada02b57f62cdea92134fde9f7Chris Lattner /// a conservatively correct answer for this method. 881b11f9198111796ada02b57f62cdea92134fde9f7Chris Lattner bool isObviouslyBranchWithoutCleanups(JumpDest Dest) const; 882f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 883777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall /// popCatchScope - Pops the catch scope at the top of the EHScope 884777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall /// stack, emitting any required code (other than the catch handlers 885777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall /// themselves). 886777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall void popCatchScope(); 887ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall 888777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall llvm::BasicBlock *getEHResumeBlock(); 889777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall llvm::BasicBlock *getEHDispatchBlock(EHScopeStack::stable_iterator scope); 8900dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 891150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// An object to manage conditionally-evaluated expressions. 892150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall class ConditionalEvaluation { 893150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall llvm::BasicBlock *StartBB; 8941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 895150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall public: 896150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall ConditionalEvaluation(CodeGenFunction &CGF) 897150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall : StartBB(CGF.Builder.GetInsertBlock()) {} 8989cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 899150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall void begin(CodeGenFunction &CGF) { 900150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall assert(CGF.OutermostConditional != this); 901150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall if (!CGF.OutermostConditional) 902150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall CGF.OutermostConditional = this; 903150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 904150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 905150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall void end(CodeGenFunction &CGF) { 906150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall assert(CGF.OutermostConditional != 0); 907150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall if (CGF.OutermostConditional == this) 908150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall CGF.OutermostConditional = 0; 909150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 910150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 911150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// Returns a block which will be executed prior to each 912150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// evaluation of the conditional code. 913150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall llvm::BasicBlock *getStartingBlock() const { 914150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall return StartBB; 915150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 916150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall }; 9171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 9183019c444c672938c57f5573840071ecd73425ee7John McCall /// isInConditionalBranch - Return true if we're currently emitting 9193019c444c672938c57f5573840071ecd73425ee7John McCall /// one branch or the other of a conditional expression. 920150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall bool isInConditionalBranch() const { return OutermostConditional != 0; } 921150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 922150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// An RAII object to record that we're evaluating a statement 923150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// expression. 924150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall class StmtExprEvaluation { 925150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall CodeGenFunction &CGF; 926150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 927150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// We have to save the outermost conditional: cleanups in a 928150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// statement expression aren't conditional just because the 929150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// StmtExpr is. 930150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall ConditionalEvaluation *SavedOutermostConditional; 931150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 932150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall public: 933150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall StmtExprEvaluation(CodeGenFunction &CGF) 934150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall : CGF(CGF), SavedOutermostConditional(CGF.OutermostConditional) { 935150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall CGF.OutermostConditional = 0; 936150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 937150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 938150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall ~StmtExprEvaluation() { 939150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall CGF.OutermostConditional = SavedOutermostConditional; 940150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall CGF.EnsureInsertPoint(); 941150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 942150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall }; 943e996ffd240f20a1048179d7727a6ee3227261921John McCall 94456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// An object which temporarily prevents a value from being 94556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// destroyed by aggressive peephole optimizations that assume that 94656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// all uses of a value have been realized in the IR. 94756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall class PeepholeProtection { 94856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall llvm::Instruction *Inst; 94956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall friend class CodeGenFunction; 95056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 95156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall public: 95256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall PeepholeProtection() : Inst(0) {} 9534b9c2d235fb9449e249d74f48ecfec601650de93John McCall }; 95456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 9554b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// A non-RAII class containing all the information about a bound 9564b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// opaque value. OpaqueValueMapping, below, is a RAII wrapper for 9574b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// this which makes individual mappings very simple; using this 9584b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// class directly is useful when you have a variable number of 9594b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// opaque values or don't want the RAII functionality for some 9604b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// reason. 9614b9c2d235fb9449e249d74f48ecfec601650de93John McCall class OpaqueValueMappingData { 962e996ffd240f20a1048179d7727a6ee3227261921John McCall const OpaqueValueExpr *OpaqueValue; 96356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall bool BoundLValue; 96456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall CodeGenFunction::PeepholeProtection Protection; 965e996ffd240f20a1048179d7727a6ee3227261921John McCall 9664b9c2d235fb9449e249d74f48ecfec601650de93John McCall OpaqueValueMappingData(const OpaqueValueExpr *ov, 9674b9c2d235fb9449e249d74f48ecfec601650de93John McCall bool boundLValue) 9684b9c2d235fb9449e249d74f48ecfec601650de93John McCall : OpaqueValue(ov), BoundLValue(boundLValue) {} 969e996ffd240f20a1048179d7727a6ee3227261921John McCall public: 9704b9c2d235fb9449e249d74f48ecfec601650de93John McCall OpaqueValueMappingData() : OpaqueValue(0) {} 9714b9c2d235fb9449e249d74f48ecfec601650de93John McCall 97256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static bool shouldBindAsLValue(const Expr *expr) { 97356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return expr->isGLValue() || expr->getType()->isRecordType(); 97456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 97556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 9764b9c2d235fb9449e249d74f48ecfec601650de93John McCall static OpaqueValueMappingData bind(CodeGenFunction &CGF, 9774b9c2d235fb9449e249d74f48ecfec601650de93John McCall const OpaqueValueExpr *ov, 9784b9c2d235fb9449e249d74f48ecfec601650de93John McCall const Expr *e) { 9794b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (shouldBindAsLValue(ov)) 9804b9c2d235fb9449e249d74f48ecfec601650de93John McCall return bind(CGF, ov, CGF.EmitLValue(e)); 9814b9c2d235fb9449e249d74f48ecfec601650de93John McCall return bind(CGF, ov, CGF.EmitAnyExpr(e)); 9824b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 9834b9c2d235fb9449e249d74f48ecfec601650de93John McCall 9844b9c2d235fb9449e249d74f48ecfec601650de93John McCall static OpaqueValueMappingData bind(CodeGenFunction &CGF, 9854b9c2d235fb9449e249d74f48ecfec601650de93John McCall const OpaqueValueExpr *ov, 9864b9c2d235fb9449e249d74f48ecfec601650de93John McCall const LValue &lv) { 9874b9c2d235fb9449e249d74f48ecfec601650de93John McCall assert(shouldBindAsLValue(ov)); 9884b9c2d235fb9449e249d74f48ecfec601650de93John McCall CGF.OpaqueLValues.insert(std::make_pair(ov, lv)); 9894b9c2d235fb9449e249d74f48ecfec601650de93John McCall return OpaqueValueMappingData(ov, true); 9904b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 9914b9c2d235fb9449e249d74f48ecfec601650de93John McCall 9924b9c2d235fb9449e249d74f48ecfec601650de93John McCall static OpaqueValueMappingData bind(CodeGenFunction &CGF, 9934b9c2d235fb9449e249d74f48ecfec601650de93John McCall const OpaqueValueExpr *ov, 9944b9c2d235fb9449e249d74f48ecfec601650de93John McCall const RValue &rv) { 9954b9c2d235fb9449e249d74f48ecfec601650de93John McCall assert(!shouldBindAsLValue(ov)); 9964b9c2d235fb9449e249d74f48ecfec601650de93John McCall CGF.OpaqueRValues.insert(std::make_pair(ov, rv)); 9974b9c2d235fb9449e249d74f48ecfec601650de93John McCall 9984b9c2d235fb9449e249d74f48ecfec601650de93John McCall OpaqueValueMappingData data(ov, false); 9994b9c2d235fb9449e249d74f48ecfec601650de93John McCall 10004b9c2d235fb9449e249d74f48ecfec601650de93John McCall // Work around an extremely aggressive peephole optimization in 10014b9c2d235fb9449e249d74f48ecfec601650de93John McCall // EmitScalarConversion which assumes that all other uses of a 10024b9c2d235fb9449e249d74f48ecfec601650de93John McCall // value are extant. 10034b9c2d235fb9449e249d74f48ecfec601650de93John McCall data.Protection = CGF.protectFromPeepholes(rv); 10044b9c2d235fb9449e249d74f48ecfec601650de93John McCall 10054b9c2d235fb9449e249d74f48ecfec601650de93John McCall return data; 10064b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 10074b9c2d235fb9449e249d74f48ecfec601650de93John McCall 10084b9c2d235fb9449e249d74f48ecfec601650de93John McCall bool isValid() const { return OpaqueValue != 0; } 10094b9c2d235fb9449e249d74f48ecfec601650de93John McCall void clear() { OpaqueValue = 0; } 10104b9c2d235fb9449e249d74f48ecfec601650de93John McCall 10114b9c2d235fb9449e249d74f48ecfec601650de93John McCall void unbind(CodeGenFunction &CGF) { 10124b9c2d235fb9449e249d74f48ecfec601650de93John McCall assert(OpaqueValue && "no data to unbind!"); 10134b9c2d235fb9449e249d74f48ecfec601650de93John McCall 10144b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (BoundLValue) { 10154b9c2d235fb9449e249d74f48ecfec601650de93John McCall CGF.OpaqueLValues.erase(OpaqueValue); 10164b9c2d235fb9449e249d74f48ecfec601650de93John McCall } else { 10174b9c2d235fb9449e249d74f48ecfec601650de93John McCall CGF.OpaqueRValues.erase(OpaqueValue); 10184b9c2d235fb9449e249d74f48ecfec601650de93John McCall CGF.unprotectFromPeepholes(Protection); 10194b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 10204b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 10214b9c2d235fb9449e249d74f48ecfec601650de93John McCall }; 10224b9c2d235fb9449e249d74f48ecfec601650de93John McCall 10234b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// An RAII object to set (and then clear) a mapping for an OpaqueValueExpr. 10244b9c2d235fb9449e249d74f48ecfec601650de93John McCall class OpaqueValueMapping { 10254b9c2d235fb9449e249d74f48ecfec601650de93John McCall CodeGenFunction &CGF; 10264b9c2d235fb9449e249d74f48ecfec601650de93John McCall OpaqueValueMappingData Data; 10274b9c2d235fb9449e249d74f48ecfec601650de93John McCall 10284b9c2d235fb9449e249d74f48ecfec601650de93John McCall public: 10294b9c2d235fb9449e249d74f48ecfec601650de93John McCall static bool shouldBindAsLValue(const Expr *expr) { 10304b9c2d235fb9449e249d74f48ecfec601650de93John McCall return OpaqueValueMappingData::shouldBindAsLValue(expr); 10314b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 10324b9c2d235fb9449e249d74f48ecfec601650de93John McCall 103356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// Build the opaque value mapping for the given conditional 103456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// operator if it's the GNU ?: extension. This is a common 103556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// enough pattern that the convenience operator is really 103656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// helpful. 103756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// 103856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall OpaqueValueMapping(CodeGenFunction &CGF, 103956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall const AbstractConditionalOperator *op) : CGF(CGF) { 10404b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (isa<ConditionalOperator>(op)) 10414b9c2d235fb9449e249d74f48ecfec601650de93John McCall // Leave Data empty. 104256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return; 104356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 104456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall const BinaryConditionalOperator *e = cast<BinaryConditionalOperator>(op); 10454b9c2d235fb9449e249d74f48ecfec601650de93John McCall Data = OpaqueValueMappingData::bind(CGF, e->getOpaqueValue(), 10464b9c2d235fb9449e249d74f48ecfec601650de93John McCall e->getCommon()); 104756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 104856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 1049e996ffd240f20a1048179d7727a6ee3227261921John McCall OpaqueValueMapping(CodeGenFunction &CGF, 1050e996ffd240f20a1048179d7727a6ee3227261921John McCall const OpaqueValueExpr *opaqueValue, 105156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall LValue lvalue) 10524b9c2d235fb9449e249d74f48ecfec601650de93John McCall : CGF(CGF), Data(OpaqueValueMappingData::bind(CGF, opaqueValue, lvalue)) { 105356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 105456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 105556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall OpaqueValueMapping(CodeGenFunction &CGF, 105656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall const OpaqueValueExpr *opaqueValue, 105756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall RValue rvalue) 10584b9c2d235fb9449e249d74f48ecfec601650de93John McCall : CGF(CGF), Data(OpaqueValueMappingData::bind(CGF, opaqueValue, rvalue)) { 1059e996ffd240f20a1048179d7727a6ee3227261921John McCall } 1060e996ffd240f20a1048179d7727a6ee3227261921John McCall 1061e996ffd240f20a1048179d7727a6ee3227261921John McCall void pop() { 10624b9c2d235fb9449e249d74f48ecfec601650de93John McCall Data.unbind(CGF); 10634b9c2d235fb9449e249d74f48ecfec601650de93John McCall Data.clear(); 1064e996ffd240f20a1048179d7727a6ee3227261921John McCall } 1065e996ffd240f20a1048179d7727a6ee3227261921John McCall 1066e996ffd240f20a1048179d7727a6ee3227261921John McCall ~OpaqueValueMapping() { 10674b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (Data.isValid()) Data.unbind(CGF); 1068e996ffd240f20a1048179d7727a6ee3227261921John McCall } 1069e996ffd240f20a1048179d7727a6ee3227261921John McCall }; 1070e220455a059d926953befe72857b9525273717efFariborz Jahanian 1071e220455a059d926953befe72857b9525273717efFariborz Jahanian /// getByrefValueFieldNumber - Given a declaration, returns the LLVM field 1072e220455a059d926953befe72857b9525273717efFariborz Jahanian /// number that holds the value. 1073e220455a059d926953befe72857b9525273717efFariborz Jahanian unsigned getByRefValueLLVMField(const ValueDecl *VD) const; 107452a80e19ad688091723a52ad53337767bb0ac684Fariborz Jahanian 107552a80e19ad688091723a52ad53337767bb0ac684Fariborz Jahanian /// BuildBlockByrefAddress - Computes address location of the 107652a80e19ad688091723a52ad53337767bb0ac684Fariborz Jahanian /// variable which is declared as __block. 107752a80e19ad688091723a52ad53337767bb0ac684Fariborz Jahanian llvm::Value *BuildBlockByrefAddress(llvm::Value *BaseAddr, 107852a80e19ad688091723a52ad53337767bb0ac684Fariborz Jahanian const VarDecl *V); 10797f02f721d48772e4eee4fccd8af4f800be1bbc1eChris Lattnerprivate: 1080d9becd1846e2c72bf6ad283faa1b048f33dd3afeChris Lattner CGDebugInfo *DebugInfo; 1081aa11289f754d220c9c155b68a4f84cdcfcefef6aDevang Patel bool DisableDebugInfo; 108209429b962811f2c0a7a81a1b0a89f96f5878b20cMike Stump 108393c332a8ba2c193c435b293966d343dab15f555bJohn McCall /// DidCallStackSave - Whether llvm.stacksave has been called. Used to avoid 108493c332a8ba2c193c435b293966d343dab15f555bJohn McCall /// calling llvm.stacksave for multiple VLAs in the same scope. 108593c332a8ba2c193c435b293966d343dab15f555bJohn McCall bool DidCallStackSave; 108693c332a8ba2c193c435b293966d343dab15f555bJohn McCall 1087f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// IndirectBranch - The first time an indirect goto is seen we create a block 1088f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// with an indirect branch. Every time we see the address of a label taken, 1089f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// we add the label to the indirect goto. Every subsequent indirect goto is 1090f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// codegen'd as a jump to the IndirectBranch's basic block. 1091d9becd1846e2c72bf6ad283faa1b048f33dd3afeChris Lattner llvm::IndirectBrInst *IndirectBranch; 10920ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar 10930dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// LocalDeclMap - This keeps track of the LLVM allocas or globals for local C 10940dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// decls. 10956b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall typedef llvm::DenseMap<const Decl*, llvm::Value*> DeclMapTy; 10966b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall DeclMapTy LocalDeclMap; 10975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// LabelMap - This keeps track of the LLVM basic block for each C label. 1099ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner llvm::DenseMap<const LabelDecl*, JumpDest> LabelMap; 11000dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 11010dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // BreakContinueStack - This keeps track of where break and continue 1102e4b6d342c29d5cb9d311756100df1603810fa892Anders Carlsson // statements should jump to. 1103da13870e99fe33934b2122f06528a5063f78ae4cChris Lattner struct BreakContinue { 1104f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall BreakContinue(JumpDest Break, JumpDest Continue) 1105f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall : BreakBlock(Break), ContinueBlock(Continue) {} 11060dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1107f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall JumpDest BreakBlock; 1108f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall JumpDest ContinueBlock; 11090dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump }; 1110686775deca8b8685eb90801495880e3abdd844c2Chris Lattner SmallVector<BreakContinue, 8> BreakContinueStack; 111118ccc7776ad6288c5f630dc7967fb99d099c9cd9Daniel Dunbar 11120dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// SwitchInsn - This is nearest current switch instruction. It is null if if 11130dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// current context is not in a switch. 111451b09f2c528c8460b5465c676173324e44176d62Devang Patel llvm::SwitchInst *SwitchInsn; 111551b09f2c528c8460b5465c676173324e44176d62Devang Patel 11160dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// CaseRangeBlock - This block holds if condition check for last case 111780fd5f96e6805ac43aab99faabd5b4c8b19551b7Devang Patel /// statement range in current switch instruction. 1118c049e4f406a7f7179eba98659044a32508e53289Devang Patel llvm::BasicBlock *CaseRangeBlock; 1119c049e4f406a7f7179eba98659044a32508e53289Devang Patel 112056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// OpaqueLValues - Keeps track of the current set of opaque value 1121e996ffd240f20a1048179d7727a6ee3227261921John McCall /// expressions. 112256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall llvm::DenseMap<const OpaqueValueExpr *, LValue> OpaqueLValues; 112356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall llvm::DenseMap<const OpaqueValueExpr *, RValue> OpaqueRValues; 1124e996ffd240f20a1048179d7727a6ee3227261921John McCall 11250dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // VLASizeMap - This keeps track of the associated size for each VLA type. 1126bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman // We track this by the size expression rather than the type itself because 1127bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman // in certain situations, like a const qualifier applied to an VLA typedef, 1128bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman // multiple VLA types can share the same size expression. 11290dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // FIXME: Maybe this could be a stack of maps that is pushed/popped as we 11300dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // enter/leave scopes. 1131bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman llvm::DenseMap<const Expr*, llvm::Value*> VLASizeMap; 11320dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1133f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// A block containing a single 'unreachable' instruction. Created 1134f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// lazily by getUnreachableBlock(). 1135f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *UnreachableBlock; 11360dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1137f6c56e2323c3f973253805a2f35629f3253ebed4Anders Carlsson /// CXXThisDecl - When generating code for a C++ member function, 1138f6c56e2323c3f973253805a2f35629f3253ebed4Anders Carlsson /// this will hold the implicit 'this' declaration. 11392b77ba8bc7a842829ad9193816dc1d7d5e9c5be6Anders Carlsson ImplicitParamDecl *CXXThisDecl; 11402504941793b549323f9d29c62507cf21d865fadeJohn McCall llvm::Value *CXXThisValue; 11411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1142f6c56e2323c3f973253805a2f35629f3253ebed4Anders Carlsson /// CXXVTTDecl - When generating code for a base object constructor or 1143f6c56e2323c3f973253805a2f35629f3253ebed4Anders Carlsson /// base object destructor with virtual bases, this will hold the implicit 1144f6c56e2323c3f973253805a2f35629f3253ebed4Anders Carlsson /// VTT parameter. 1145f6c56e2323c3f973253805a2f35629f3253ebed4Anders Carlsson ImplicitParamDecl *CXXVTTDecl; 11462504941793b549323f9d29c62507cf21d865fadeJohn McCall llvm::Value *CXXVTTValue; 11479cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 1148150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// OutermostConditional - Points to the outermost active 1149150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// conditional control. This is used so that we know if a 1150150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// temporary should be destroyed conditionally. 1151150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall ConditionalEvaluation *OutermostConditional; 11521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11537dfa4079f4b37507048b19bfc693d3b015d9dd11Anders Carlsson 11547dfa4079f4b37507048b19bfc693d3b015d9dd11Anders Carlsson /// ByrefValueInfoMap - For each __block variable, contains a pair of the LLVM 11557dfa4079f4b37507048b19bfc693d3b015d9dd11Anders Carlsson /// type as well as the field number that contains the actual data. 11562acc6e3feda5e4f7d9009bdcf8b1cd777fecfe2dChris Lattner llvm::DenseMap<const ValueDecl *, std::pair<llvm::Type *, 11577dfa4079f4b37507048b19bfc693d3b015d9dd11Anders Carlsson unsigned> > ByRefValueInfo; 11589cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 1159f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *TerminateLandingPad; 1160182f383db1782af752ecaf607fdff72a8542088bMike Stump llvm::BasicBlock *TerminateHandler; 116183252dcfe61aaebcb6bc117e71dc12968729513fChris Lattner llvm::BasicBlock *TrapBB; 1162940670512d7c3d93389bb38a426abcb7ef44271eEli Friedman 11635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 11645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CodeGenFunction(CodeGenModule &cgm); 11650dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 11661e7fe751466ea82665fd21e9162fd7cc9c5f412dJohn McCall CodeGenTypes &getTypes() const { return CGM.getTypes(); } 1167f2aac84709c418189e476ad591848dad50291885John McCall ASTContext &getContext() const { return CGM.getContext(); } 1168aa11289f754d220c9c155b68a4f84cdcfcefef6aDevang Patel CGDebugInfo *getDebugInfo() { 1169aa11289f754d220c9c155b68a4f84cdcfcefef6aDevang Patel if (DisableDebugInfo) 1170aa11289f754d220c9c155b68a4f84cdcfcefef6aDevang Patel return NULL; 1171aa11289f754d220c9c155b68a4f84cdcfcefef6aDevang Patel return DebugInfo; 1172aa11289f754d220c9c155b68a4f84cdcfcefef6aDevang Patel } 1173aa11289f754d220c9c155b68a4f84cdcfcefef6aDevang Patel void disableDebugInfo() { DisableDebugInfo = true; } 1174aa11289f754d220c9c155b68a4f84cdcfcefef6aDevang Patel void enableDebugInfo() { DisableDebugInfo = false; } 1175aa11289f754d220c9c155b68a4f84cdcfcefef6aDevang Patel 1176f85e193739c953358c865005855253af4f68a497John McCall bool shouldUseFusedARCCalls() { 1177f85e193739c953358c865005855253af4f68a497John McCall return CGM.getCodeGenOpts().OptimizationLevel == 0; 1178f85e193739c953358c865005855253af4f68a497John McCall } 11795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1180d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall const LangOptions &getLangOptions() const { return CGM.getLangOptions(); } 1181d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall 1182285cfd8953d4ca4da613a47a0d691f7234068f8cBill Wendling /// Returns a pointer to the function's exception object and selector slot, 1183285cfd8953d4ca4da613a47a0d691f7234068f8cBill Wendling /// which is assigned in every landing pad. 1184f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::Value *getExceptionSlot(); 118593c332a8ba2c193c435b293966d343dab15f555bJohn McCall llvm::Value *getEHSelectorSlot(); 1186f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 1187ae270598d5c7a9a283d4b3ddce53b151c6e2b182Bill Wendling /// Returns the contents of the function's exception object and selector 1188ae270598d5c7a9a283d4b3ddce53b151c6e2b182Bill Wendling /// slots. 1189ae270598d5c7a9a283d4b3ddce53b151c6e2b182Bill Wendling llvm::Value *getExceptionFromSlot(); 1190ae270598d5c7a9a283d4b3ddce53b151c6e2b182Bill Wendling llvm::Value *getSelectorFromSlot(); 1191ae270598d5c7a9a283d4b3ddce53b151c6e2b182Bill Wendling 1192ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall llvm::Value *getNormalCleanupDestSlot(); 1193ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall 1194f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *getUnreachableBlock() { 1195f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall if (!UnreachableBlock) { 1196f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall UnreachableBlock = createBasicBlock("unreachable"); 1197f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall new llvm::UnreachableInst(getLLVMContext(), UnreachableBlock); 1198f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 1199f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return UnreachableBlock; 1200f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 1201f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 1202f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *getInvokeDest() { 1203f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall if (!EHStack.requiresLandingPad()) return 0; 1204f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return getInvokeDestImpl(); 1205f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 12069834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar 1207d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall llvm::LLVMContext &getLLVMContext() { return CGM.getLLVMContext(); } 120869243825cb5c91ec7207256aa57ae327cfaf8cb2Owen Anderson 12099834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar //===--------------------------------------------------------------------===// 1210bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall // Cleanups 1211bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall //===--------------------------------------------------------------------===// 1212bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall 1213bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall typedef void Destroyer(CodeGenFunction &CGF, llvm::Value *addr, QualType ty); 1214bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall 12152673c68aa58e277ebc755b71d81aca618cdedbf9John McCall void pushIrregularPartialArrayCleanup(llvm::Value *arrayBegin, 12162673c68aa58e277ebc755b71d81aca618cdedbf9John McCall llvm::Value *arrayEndPointer, 12172673c68aa58e277ebc755b71d81aca618cdedbf9John McCall QualType elementType, 12182673c68aa58e277ebc755b71d81aca618cdedbf9John McCall Destroyer &destroyer); 12192673c68aa58e277ebc755b71d81aca618cdedbf9John McCall void pushRegularPartialArrayCleanup(llvm::Value *arrayBegin, 12202673c68aa58e277ebc755b71d81aca618cdedbf9John McCall llvm::Value *arrayEnd, 12212673c68aa58e277ebc755b71d81aca618cdedbf9John McCall QualType elementType, 12222673c68aa58e277ebc755b71d81aca618cdedbf9John McCall Destroyer &destroyer); 1223bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall 12249928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall void pushDestroy(QualType::DestructionKind dtorKind, 12259928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall llvm::Value *addr, QualType type); 1226bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall void pushDestroy(CleanupKind kind, llvm::Value *addr, QualType type, 12272673c68aa58e277ebc755b71d81aca618cdedbf9John McCall Destroyer &destroyer, bool useEHCleanupForArray); 12282673c68aa58e277ebc755b71d81aca618cdedbf9John McCall void emitDestroy(llvm::Value *addr, QualType type, Destroyer &destroyer, 12292673c68aa58e277ebc755b71d81aca618cdedbf9John McCall bool useEHCleanupForArray); 1230a91f6661c4685fecee6dc09bdaef73254c1aaa06John McCall llvm::Function *generateDestroyHelper(llvm::Constant *addr, 1231a91f6661c4685fecee6dc09bdaef73254c1aaa06John McCall QualType type, 1232a91f6661c4685fecee6dc09bdaef73254c1aaa06John McCall Destroyer &destroyer, 1233a91f6661c4685fecee6dc09bdaef73254c1aaa06John McCall bool useEHCleanupForArray); 1234bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall void emitArrayDestroy(llvm::Value *begin, llvm::Value *end, 12352673c68aa58e277ebc755b71d81aca618cdedbf9John McCall QualType type, Destroyer &destroyer, 1236fbf780a9d1dbb191fc40c8af967c590e08724b74John McCall bool checkZeroLength, bool useEHCleanup); 1237bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall 12389928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall Destroyer &getDestroyer(QualType::DestructionKind destructionKind); 12399928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall 1240bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall /// Determines whether an EH cleanup is required to destroy a type 1241bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall /// with the given destruction kind. 1242bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall bool needsEHCleanup(QualType::DestructionKind kind) { 1243bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall switch (kind) { 1244bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall case QualType::DK_none: 1245bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall return false; 1246bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall case QualType::DK_cxx_destructor: 1247bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall case QualType::DK_objc_weak_lifetime: 1248bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall return getLangOptions().Exceptions; 1249bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall case QualType::DK_objc_strong_lifetime: 1250bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall return getLangOptions().Exceptions && 1251bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall CGM.getCodeGenOpts().ObjCAutoRefCountExceptions; 1252bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall } 1253bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall llvm_unreachable("bad destruction kind"); 1254bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall } 1255bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall 12569928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall CleanupKind getCleanupKind(QualType::DestructionKind kind) { 12579928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall return (needsEHCleanup(kind) ? NormalAndEHCleanup : NormalCleanup); 12589928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall } 12599928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall 1260bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall //===--------------------------------------------------------------------===// 12619834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar // Objective-C 12629834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar //===--------------------------------------------------------------------===// 12639834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar 1264391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner void GenerateObjCMethod(const ObjCMethodDecl *OMD); 1265af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 12660dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump void StartObjCMethod(const ObjCMethodDecl *MD, 12678d3f8979e46f9d0b8735566eabe471db0e1e0e53Devang Patel const ObjCContainerDecl *CD, 12688d3f8979e46f9d0b8735566eabe471db0e1e0e53Devang Patel SourceLocation StartLoc); 1269af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 12700dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// GenerateObjCGetter - Synthesize an Objective-C property getter function. 1271fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian void GenerateObjCGetter(ObjCImplementationDecl *IMP, 1272fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian const ObjCPropertyImplDecl *PID); 12731e1f4871535f2cadcbf8c9af8cc48a2213192320John McCall void generateObjCGetterBody(const ObjCImplementationDecl *classImpl, 12741e1f4871535f2cadcbf8c9af8cc48a2213192320John McCall const ObjCPropertyImplDecl *propImpl); 12752846b97965e980ad2e7c8d444b82cc21d733a699Fariborz Jahanian 1276109dfc6ca6652f60c55ed0f2631aebf323d0200dFariborz Jahanian void GenerateObjCCtorDtorMethod(ObjCImplementationDecl *IMP, 1277109dfc6ca6652f60c55ed0f2631aebf323d0200dFariborz Jahanian ObjCMethodDecl *MD, bool ctor); 1278af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 12790dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// GenerateObjCSetter - Synthesize an Objective-C property setter function 12800dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// for the given property. 1281fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian void GenerateObjCSetter(ObjCImplementationDecl *IMP, 1282fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian const ObjCPropertyImplDecl *PID); 128371c758d3f4ecc8b511e6ae4a7210486aa994c182John McCall void generateObjCSetterBody(const ObjCImplementationDecl *classImpl, 128471c758d3f4ecc8b511e6ae4a7210486aa994c182John McCall const ObjCPropertyImplDecl *propImpl); 12850b2bd47151ee9205ad6c66d1ffb921918106088aFariborz Jahanian bool IndirectObjCSetterArg(const CGFunctionInfo &FI); 128615bd58842adaa4f8cca4e58047ed18e033858d9bFariborz Jahanian bool IvarTypeWithAggrGCObjects(QualType Ty); 1287af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 12884e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump //===--------------------------------------------------------------------===// 12894e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump // Block Bits 12904e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump //===--------------------------------------------------------------------===// 12914e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump 12926b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall llvm::Value *EmitBlockLiteral(const BlockExpr *); 12932a7eb28397148079cbc8e54e8a3871ef01c4f4bcBlaine Garst llvm::Constant *BuildDescriptorBlockDecl(const BlockExpr *, 129489ecd41e0a6bfb3b0913dbe41c3c666340b308c7Fariborz Jahanian const CGBlockInfo &Info, 12952acc6e3feda5e4f7d9009bdcf8b1cd777fecfe2dChris Lattner llvm::StructType *, 1296d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall llvm::Constant *BlockVarLayout); 12974e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump 1298564360be450b319aeafc26698be9811837bfb826Fariborz Jahanian llvm::Function *GenerateBlockFunction(GlobalDecl GD, 12996b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall const CGBlockInfo &Info, 13006cc88f78fd36d3511b89412b193494b3e423cbffMike Stump const Decl *OuterFuncDecl, 13016b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall const DeclMapTy &ldm); 13024e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump 1303d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall llvm::Constant *GenerateCopyHelperFunction(const CGBlockInfo &blockInfo); 1304d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall llvm::Constant *GenerateDestroyHelperFunction(const CGBlockInfo &blockInfo); 1305d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall 1306d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall void BuildBlockRelease(llvm::Value *DeclPtr, BlockFieldFlags flags); 1307d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall 13085af02db5a48476e0748f135369663080eae87c64John McCall class AutoVarEmission; 13095af02db5a48476e0748f135369663080eae87c64John McCall 13105af02db5a48476e0748f135369663080eae87c64John McCall void emitByrefStructureInit(const AutoVarEmission &emission); 13115af02db5a48476e0748f135369663080eae87c64John McCall void enterByrefCleanup(const AutoVarEmission &emission); 13125af02db5a48476e0748f135369663080eae87c64John McCall 13136b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall llvm::Value *LoadBlockStruct() { 13146b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall assert(BlockPointer && "no block pointer set!"); 13156b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall return BlockPointer; 13166b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall } 13174e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump 1318ea1471e0e967548c596a71469702f8846dbaf3c0John McCall void AllocateBlockCXXThisPointer(const CXXThisExpr *E); 1319ea1471e0e967548c596a71469702f8846dbaf3c0John McCall void AllocateBlockDecl(const BlockDeclRefExpr *E); 1320ee5042903d53fa7b0fbc1902d0ea07d57c7775b1John McCall llvm::Value *GetAddrOfBlockDecl(const BlockDeclRefExpr *E) { 1321ee5042903d53fa7b0fbc1902d0ea07d57c7775b1John McCall return GetAddrOfBlockDecl(E->getDecl(), E->isByRef()); 1322ee5042903d53fa7b0fbc1902d0ea07d57c7775b1John McCall } 13236b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall llvm::Value *GetAddrOfBlockDecl(const VarDecl *var, bool ByRef); 13242acc6e3feda5e4f7d9009bdcf8b1cd777fecfe2dChris Lattner llvm::Type *BuildByRefType(const VarDecl *var); 1325dab514fc30242c7afd6c03956e46136c400fb0d3Mike Stump 1326d26bc76c98006609002d9930f8840490e88ac5b5John McCall void GenerateCode(GlobalDecl GD, llvm::Function *Fn, 1327d26bc76c98006609002d9930f8840490e88ac5b5John McCall const CGFunctionInfo &FnInfo); 13280ff8bafde95f6fa51ccea70738c1b99db870bddcAnders Carlsson void StartFunction(GlobalDecl GD, QualType RetTy, 13297c086516f3cc9fba2733b1919973206c6ba4b171Daniel Dunbar llvm::Function *Fn, 1330d26bc76c98006609002d9930f8840490e88ac5b5John McCall const CGFunctionInfo &FnInfo, 13312284ac9ec80299fcdefae9a2787cf85105a0f203Daniel Dunbar const FunctionArgList &Args, 13329c6082fe89c61af697f017aa80937581cc2128d8Tilmann Scheller SourceLocation StartLoc); 1333a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 13349fc6a7774643a810c8501dae2323e863fefb623eJohn McCall void EmitConstructorBody(FunctionArgList &Args); 13359fc6a7774643a810c8501dae2323e863fefb623eJohn McCall void EmitDestructorBody(FunctionArgList &Args); 13369fc6a7774643a810c8501dae2323e863fefb623eJohn McCall void EmitFunctionBody(FunctionArgList &Args); 1337a355e07454463b19829ac92ffd115a097faff0e0John McCall 13380dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitReturnBlock - Emit the unified return block, trying to avoid its 13390dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// emission when possible. 13401c1d6074f5a0296dd273362655b1b8f9057289e3Daniel Dunbar void EmitReturnBlock(); 13411c1d6074f5a0296dd273362655b1b8f9057289e3Daniel Dunbar 13420dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// FinishFunction - Complete IR generation of the current function. It is 13430dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// legal to call this function even if there is no current insertion point. 1344af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar void FinishFunction(SourceLocation EndLoc=SourceLocation()); 134517b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar 1346519c32880b99396034ecaedc0cd86db2e8485003Anders Carlsson /// GenerateThunk - Generate a thunk for the given method. 1347d26bc76c98006609002d9930f8840490e88ac5b5John McCall void GenerateThunk(llvm::Function *Fn, const CGFunctionInfo &FnInfo, 1348d26bc76c98006609002d9930f8840490e88ac5b5John McCall GlobalDecl GD, const ThunkInfo &Thunk); 13499cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 13507dcdf5ba9324a9577461eae302e88fdd52e310c5Eli Friedman void GenerateVarArgsThunk(llvm::Function *Fn, const CGFunctionInfo &FnInfo, 13517dcdf5ba9324a9577461eae302e88fdd52e310c5Eli Friedman GlobalDecl GD, const ThunkInfo &Thunk); 13527dcdf5ba9324a9577461eae302e88fdd52e310c5Eli Friedman 1353fb8cc253420e93cee33d29df5a2bdae6aaf16e39Douglas Gregor void EmitCtorPrologue(const CXXConstructorDecl *CD, CXXCtorType Type, 1354fb8cc253420e93cee33d29df5a2bdae6aaf16e39Douglas Gregor FunctionArgList &Args); 13551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1356d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson /// InitializeVTablePointer - Initialize the vtable pointer of the given 1357d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson /// subobject. 1358d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson /// 13599cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer void InitializeVTablePointer(BaseSubobject Base, 1360b3b772ea15a4cd54879e244629aa685ead9548bbAnders Carlsson const CXXRecordDecl *NearestVBase, 1361d6fb21fa1053e5d616af55b181bb03c50d4b0d24Ken Dyck CharUnits OffsetFromNearestVBase, 1362d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson llvm::Constant *VTable, 1363d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson const CXXRecordDecl *VTableClass); 1364d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson 1365d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson typedef llvm::SmallPtrSet<const CXXRecordDecl *, 4> VisitedVirtualBasesSetTy; 13669cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer void InitializeVTablePointers(BaseSubobject Base, 1367b3b772ea15a4cd54879e244629aa685ead9548bbAnders Carlsson const CXXRecordDecl *NearestVBase, 1368d6fb21fa1053e5d616af55b181bb03c50d4b0d24Ken Dyck CharUnits OffsetFromNearestVBase, 1369603d6d12cc4cba1ef219a3d55c698c7c87f87adfAnders Carlsson bool BaseIsNonVirtualPrimaryBase, 1370603d6d12cc4cba1ef219a3d55c698c7c87f87adfAnders Carlsson llvm::Constant *VTable, 1371603d6d12cc4cba1ef219a3d55c698c7c87f87adfAnders Carlsson const CXXRecordDecl *VTableClass, 1372603d6d12cc4cba1ef219a3d55c698c7c87f87adfAnders Carlsson VisitedVirtualBasesSetTy& VBases); 137377a259c6dbf582949af8a243b472c0c7faa373a6Eli Friedman 1374603d6d12cc4cba1ef219a3d55c698c7c87f87adfAnders Carlsson void InitializeVTablePointers(const CXXRecordDecl *ClassDecl); 1375d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson 1376043fb9a1fc0609285f60f0f87e5a18195408f34cDan Gohman /// GetVTablePtr - Return the Value of the vtable pointer member pointed 1377043fb9a1fc0609285f60f0f87e5a18195408f34cDan Gohman /// to by This. 13782acc6e3feda5e4f7d9009bdcf8b1cd777fecfe2dChris Lattner llvm::Value *GetVTablePtr(llvm::Value *This, llvm::Type *Ty); 1379d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson 138050da2cadcc6da86abff6772de65280ace2cabc94John McCall /// EnterDtorCleanups - Enter the cleanups necessary to complete the 138150da2cadcc6da86abff6772de65280ace2cabc94John McCall /// given phase of destruction for a destructor. The end result 138250da2cadcc6da86abff6772de65280ace2cabc94John McCall /// should call destructors on members and base classes in reverse 138350da2cadcc6da86abff6772de65280ace2cabc94John McCall /// order of their construction. 138450da2cadcc6da86abff6772de65280ace2cabc94John McCall void EnterDtorCleanups(const CXXDestructorDecl *Dtor, CXXDtorType Type); 13851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13867255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner /// ShouldInstrumentFunction - Return true if the current function should be 13877255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner /// instrumented with __cyg_profile_func_* calls 13887255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner bool ShouldInstrumentFunction(); 13897255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner 13907255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner /// EmitFunctionInstrumentation - Emit LLVM code to call the specified 13917255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner /// instrumentation function with the current function and the call site, if 13927255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner /// function instrumentation is enabled. 13937255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner void EmitFunctionInstrumentation(const char *Fn); 13947255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner 1395be4c8705e499b55548467eb7adaa23cbc6edfef9Roman Divacky /// EmitMCountInstrumentation - Emit call to .mcount. 1396be4c8705e499b55548467eb7adaa23cbc6edfef9Roman Divacky void EmitMCountInstrumentation(); 1397be4c8705e499b55548467eb7adaa23cbc6edfef9Roman Divacky 13980dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitFunctionProlog - Emit the target specific LLVM code to load the 13990dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// arguments for the given function. This is also responsible for naming the 14000dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// LLVM function arguments. 140188b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar void EmitFunctionProlog(const CGFunctionInfo &FI, 140288b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar llvm::Function *Fn, 140317b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar const FunctionArgList &Args); 140417b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar 14050dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitFunctionEpilog - Emit the target specific LLVM code to return the 14060dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// given temporary. 140735b21b884e5c3447a52a74d7ffaba966b07ac81fChris Lattner void EmitFunctionEpilog(const CGFunctionInfo &FI); 140817b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar 1409cce3d4f9812182ed4e551b7cf0fc86576be8d9c5Mike Stump /// EmitStartEHSpec - Emit the start of the exception spec. 1410cce3d4f9812182ed4e551b7cf0fc86576be8d9c5Mike Stump void EmitStartEHSpec(const Decl *D); 1411cce3d4f9812182ed4e551b7cf0fc86576be8d9c5Mike Stump 1412cce3d4f9812182ed4e551b7cf0fc86576be8d9c5Mike Stump /// EmitEndEHSpec - Emit the end of the exception spec. 1413cce3d4f9812182ed4e551b7cf0fc86576be8d9c5Mike Stump void EmitEndEHSpec(const Decl *D); 1414cce3d4f9812182ed4e551b7cf0fc86576be8d9c5Mike Stump 1415f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// getTerminateLandingPad - Return a landing pad that just calls terminate. 1416f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *getTerminateLandingPad(); 1417f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 1418f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// getTerminateHandler - Return a handler (not a landing pad, just 1419f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// a catch handler) that just calls terminate. This is used when 1420f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// a terminate scope encloses a try. 14219b39c51ae3c547568ac42325f94b4197618f6b18Mike Stump llvm::BasicBlock *getTerminateHandler(); 14229b39c51ae3c547568ac42325f94b4197618f6b18Mike Stump 14239cbe4f0ba01ec304e1e3d071c071f7bca33631c0Chris Lattner llvm::Type *ConvertTypeForMem(QualType T); 14249cbe4f0ba01ec304e1e3d071c071f7bca33631c0Chris Lattner llvm::Type *ConvertType(QualType T); 14259cbe4f0ba01ec304e1e3d071c071f7bca33631c0Chris Lattner llvm::Type *ConvertType(const TypeDecl *T) { 1426bff225ecf77fb891596ecb1b27196310d268365eJohn McCall return ConvertType(getContext().getTypeDeclType(T)); 1427bff225ecf77fb891596ecb1b27196310d268365eJohn McCall } 1428c8aa5f1f264fb230c38182adab944232bb160c2bChris Lattner 14290dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// LoadObjCSelf - Load the value of self. This function is only valid while 14300dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// generating code for an Objective-C method. 1431c8aa5f1f264fb230c38182adab944232bb160c2bChris Lattner llvm::Value *LoadObjCSelf(); 14320dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 14330dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// TypeOfSelfObject - Return type of object that this self represents. 143445012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian QualType TypeOfSelfObject(); 14354111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner 14365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// hasAggregateLLVMType - Return true if the specified AST type will map into 14375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// an aggregate LLVM type or is void. 14385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool hasAggregateLLVMType(QualType T); 143955e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar 144055e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar /// createBasicBlock - Create an LLVM basic block. 1441686775deca8b8685eb90801495880e3abdd844c2Chris Lattner llvm::BasicBlock *createBasicBlock(StringRef name = "", 1442d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall llvm::Function *parent = 0, 1443d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall llvm::BasicBlock *before = 0) { 144429ea6729155c759836be4b5453bee9ef8e1e97eeDaniel Dunbar#ifdef NDEBUG 1445d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall return llvm::BasicBlock::Create(getLLVMContext(), "", parent, before); 144629ea6729155c759836be4b5453bee9ef8e1e97eeDaniel Dunbar#else 1447d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall return llvm::BasicBlock::Create(getLLVMContext(), name, parent, before); 144829ea6729155c759836be4b5453bee9ef8e1e97eeDaniel Dunbar#endif 144955e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar } 14500dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 14515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getBasicBlockForLabel - Return the LLVM basicblock that the specified 14525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// label maps to. 1453ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner JumpDest getJumpDestForLabel(const LabelDecl *S); 14540dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1455f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// SimplifyForwardingBlocks - If the given basic block is only a branch to 1456f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// another basic block, simplify it. This assumes that no other code could 1457f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// potentially reference the basic block. 1458aa5bd87f1fd5f9ca47924248817c89325759b30eDaniel Dunbar void SimplifyForwardingBlocks(llvm::BasicBlock *BB); 1459aa5bd87f1fd5f9ca47924248817c89325759b30eDaniel Dunbar 14600dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitBlock - Emit the given block \arg BB and set it as the insert point, 14610dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// adding a fall-through branch from the current insert block if 14620dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// necessary. It is legal to call this function even if there is no current 14630dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// insertion point. 1464a0c21a8faa79e88ac432d116eca58f7a7217195dDaniel Dunbar /// 14650dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// IsFinished - If true, indicates that the caller has finished emitting 14660dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// branches to the given block and does not expect to emit code into it. This 14670dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// means the block can be ignored if it is unreachable. 1468a0c21a8faa79e88ac432d116eca58f7a7217195dDaniel Dunbar void EmitBlock(llvm::BasicBlock *BB, bool IsFinished=false); 1469824e3bd76b2e32db2ec6e4d2d113413e518d1c63Daniel Dunbar 1470777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall /// EmitBlockAfterUses - Emit the given block somewhere hopefully 1471777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall /// near its uses, and leave the insertion point in it. 1472777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall void EmitBlockAfterUses(llvm::BasicBlock *BB); 1473777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall 14740dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitBranch - Emit a branch to the specified basic block from the current 14750dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// insert block, taking care to avoid creation of branches from dummy 14760dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// blocks. It is legal to call this function even if there is no current 14770dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// insertion point. 14785e08ad3cc62ab94649959ae227a9a411a729bf49Daniel Dunbar /// 14790dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// This function clears the current insertion point. The caller should follow 14800dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// calls to this function with calls to Emit*Block prior to generation new 14810dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// code. 1482d57a871339c7c98d58d93108b806f59bdf4e13e2Daniel Dunbar void EmitBranch(llvm::BasicBlock *Block); 1483d57a871339c7c98d58d93108b806f59bdf4e13e2Daniel Dunbar 14840dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// HaveInsertPoint - True if an insertion point is defined. If not, this 14850dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// indicates that the current code being emitted is unreachable. 14860dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump bool HaveInsertPoint() const { 1487a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar return Builder.GetInsertBlock() != 0; 1488a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar } 1489a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 14900dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EnsureInsertPoint - Ensure that an insertion point is defined so that 14910dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// emitted IR has a place to go. Note that by definition, if this function 14920dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// creates a block then that block is unreachable; callers may do better to 14930dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// detect when no insertion point is defined and simply skip IR generation. 1494a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar void EnsureInsertPoint() { 1495a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar if (!HaveInsertPoint()) 1496a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar EmitBlock(createBasicBlock()); 1497a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar } 14980dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1499488e993a135ce700b982bf099c3d6b856301d642Daniel Dunbar /// ErrorUnsupported - Print out an error that codegen doesn't support the 1500dc5e8268292046114ffe02e48773572a91a310f1Chris Lattner /// specified stmt yet. 150190df4b6661968a84bf64baee489bb2f6d948fcc1Daniel Dunbar void ErrorUnsupported(const Stmt *S, const char *Type, 150290df4b6661968a84bf64baee489bb2f6d948fcc1Daniel Dunbar bool OmitOnError=false); 15035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 15055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Helpers 15065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 15070dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1508983e3d7dac99aed376939f1a4daadef98e09c3b9Daniel Dunbar LValue MakeAddrLValue(llvm::Value *V, QualType T, unsigned Alignment = 0) { 15093d5aff5d3036b0ff09d114857cd2276134b3d8c9Dan Gohman return LValue::MakeAddr(V, T, Alignment, getContext(), 15103d5aff5d3036b0ff09d114857cd2276134b3d8c9Dan Gohman CGM.getTBAAInfo(T)); 15115cf8bfec711116b3c4acc70a00717b2e119e7550Daniel Dunbar } 15125cf8bfec711116b3c4acc70a00717b2e119e7550Daniel Dunbar 15135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// CreateTempAlloca - This creates a alloca and inserts it into the entry 1514195337d2e5d4625ae9dc1328c7cdbc7115b0261bDaniel Dunbar /// block. The caller is responsible for setting an appropriate alignment on 1515195337d2e5d4625ae9dc1328c7cdbc7115b0261bDaniel Dunbar /// the alloca. 15162acc6e3feda5e4f7d9009bdcf8b1cd777fecfe2dChris Lattner llvm::AllocaInst *CreateTempAlloca(llvm::Type *Ty, 15178cc488fefb2fb04bc8d5398da29f0182f97934cfChris Lattner const Twine &Name = "tmp"); 15180dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1519ac418162692a951ca3796d6830496a85a2d12493John McCall /// InitTempAlloca - Provide an initial value for the given alloca. 1520ac418162692a951ca3796d6830496a85a2d12493John McCall void InitTempAlloca(llvm::AllocaInst *Alloca, llvm::Value *Value); 1521ac418162692a951ca3796d6830496a85a2d12493John McCall 15229bd4da2cfa8b956b851200db8f9a37e175edbb15Daniel Dunbar /// CreateIRTemp - Create a temporary IR object of the given type, with 15239bd4da2cfa8b956b851200db8f9a37e175edbb15Daniel Dunbar /// appropriate alignment. This routine should only be used when an temporary 15249bd4da2cfa8b956b851200db8f9a37e175edbb15Daniel Dunbar /// value needs to be stored into an alloca (for example, to avoid explicit 15259bd4da2cfa8b956b851200db8f9a37e175edbb15Daniel Dunbar /// PHI construction), but the type is the IR type, not the type appropriate 15269bd4da2cfa8b956b851200db8f9a37e175edbb15Daniel Dunbar /// for storing in memory. 15278cc488fefb2fb04bc8d5398da29f0182f97934cfChris Lattner llvm::AllocaInst *CreateIRTemp(QualType T, const Twine &Name = "tmp"); 15289bd4da2cfa8b956b851200db8f9a37e175edbb15Daniel Dunbar 1529195337d2e5d4625ae9dc1328c7cdbc7115b0261bDaniel Dunbar /// CreateMemTemp - Create a temporary memory object of the given type, with 1530195337d2e5d4625ae9dc1328c7cdbc7115b0261bDaniel Dunbar /// appropriate alignment. 15318cc488fefb2fb04bc8d5398da29f0182f97934cfChris Lattner llvm::AllocaInst *CreateMemTemp(QualType T, const Twine &Name = "tmp"); 1532195337d2e5d4625ae9dc1328c7cdbc7115b0261bDaniel Dunbar 1533558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// CreateAggTemp - Create a temporary memory object for the given 1534558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// aggregate type. 15358cc488fefb2fb04bc8d5398da29f0182f97934cfChris Lattner AggValueSlot CreateAggTemp(QualType T, const Twine &Name = "tmp") { 1536f85e193739c953358c865005855253af4f68a497John McCall return AggValueSlot::forAddr(CreateMemTemp(T, Name), T.getQualifiers(), 15377c2349be2d11143a2e59a167fd43362a3bf4585eJohn McCall AggValueSlot::IsNotDestructed, 1538410ffb2bc5f072d58a73c14560345bcf77dec1ccJohn McCall AggValueSlot::DoesNotNeedGCBarriers, 1539410ffb2bc5f072d58a73c14560345bcf77dec1ccJohn McCall AggValueSlot::IsNotAliased); 1540558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall } 1541558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall 1542d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall /// Emit a cast to void* in the appropriate address space. 1543d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall llvm::Value *EmitCastToVoidPtr(llvm::Value *value); 1544d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall 15455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EvaluateExprAsBool - Perform the usual unary conversions on the specified 15465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// expression and compare the result against zero, returning an Int1Ty value. 15475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::Value *EvaluateExprAsBool(const Expr *E); 15485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15492a41637a995affa1563f4d82a8b026e326a2faa0John McCall /// EmitIgnoredExpr - Emit an expression in a context which ignores the result. 15502a41637a995affa1563f4d82a8b026e326a2faa0John McCall void EmitIgnoredExpr(const Expr *E); 15512a41637a995affa1563f4d82a8b026e326a2faa0John McCall 15529b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// EmitAnyExpr - Emit code to compute the specified expression which can have 15539b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// any type. The result is returned as an RValue struct. If this is an 15549b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// aggregate expression, the aggloc/agglocvolatile arguments indicate where 15559b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// the result should be returned. 155649d1cd5a09ed3df353371fd7f206674a85e0fb45Mike Stump /// 155749d1cd5a09ed3df353371fd7f206674a85e0fb45Mike Stump /// \param IgnoreResult - True if the resulting value isn't used. 1558558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall RValue EmitAnyExpr(const Expr *E, 1559558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall AggValueSlot AggSlot = AggValueSlot::ignored(), 1560558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall bool IgnoreResult = false); 1561d9363c3a80168283b3da518b4e17f545a6246857Devang Patel 15620dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // EmitVAListRef - Emit a "reference" to a va_list; this is either the address 15630dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // or the value of the expression, depending on how va_list is defined. 15644fd0aa5803357d8c72eeac2cae15e12649ea08feEli Friedman llvm::Value *EmitVAListRef(const Expr *E); 15654fd0aa5803357d8c72eeac2cae15e12649ea08feEli Friedman 15660dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitAnyExprToTemp - Similary to EmitAnyExpr(), however, the result will 15670dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// always be accessible even if no aggregate location is provided. 1568558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall RValue EmitAnyExprToTemp(const Expr *E); 156946f45b9bec4a265ad8400a538e5ec3a5683617f1Daniel Dunbar 157060d3365b46eb826fba44483583c0051ac5c41fe3John McCall /// EmitAnyExprToMem - Emits the code necessary to evaluate an 15713d3ec1c099ec8bfac3aa1fb0126fe515b7c7fa05John McCall /// arbitrary expression into the given memory location. 15723d3ec1c099ec8bfac3aa1fb0126fe515b7c7fa05John McCall void EmitAnyExprToMem(const Expr *E, llvm::Value *Location, 1573f85e193739c953358c865005855253af4f68a497John McCall Qualifiers Quals, bool IsInitializer); 15743d3ec1c099ec8bfac3aa1fb0126fe515b7c7fa05John McCall 157560d3365b46eb826fba44483583c0051ac5c41fe3John McCall /// EmitExprAsInit - Emits the code necessary to initialize a 157660d3365b46eb826fba44483583c0051ac5c41fe3John McCall /// location in memory with the given initializer. 1577f85e193739c953358c865005855253af4f68a497John McCall void EmitExprAsInit(const Expr *init, const ValueDecl *D, 1578a07398ed98ea2b55ad7a505a3aab18aed93b149fJohn McCall LValue lvalue, bool capturedByInit); 157960d3365b46eb826fba44483583c0051ac5c41fe3John McCall 158027fe2e6c97a3782a0639d87b460741e8ba5d076dMike Stump /// EmitAggregateCopy - Emit an aggrate copy. 158127fe2e6c97a3782a0639d87b460741e8ba5d076dMike Stump /// 158227fe2e6c97a3782a0639d87b460741e8ba5d076dMike Stump /// \param isVolatile - True iff either the source or the destination is 158327fe2e6c97a3782a0639d87b460741e8ba5d076dMike Stump /// volatile. 15847482d12c345c6391f8956850545e2d4aa7701ce6Daniel Dunbar void EmitAggregateCopy(llvm::Value *DestPtr, llvm::Value *SrcPtr, 158527fe2e6c97a3782a0639d87b460741e8ba5d076dMike Stump QualType EltTy, bool isVolatile=false); 15867482d12c345c6391f8956850545e2d4aa7701ce6Daniel Dunbar 158751b09f2c528c8460b5465c676173324e44176d62Devang Patel /// StartBlock - Start new block named N. If insert block is a dummy block 158851b09f2c528c8460b5465c676173324e44176d62Devang Patel /// then reuse it. 158951b09f2c528c8460b5465c676173324e44176d62Devang Patel void StartBlock(const char *N); 159051b09f2c528c8460b5465c676173324e44176d62Devang Patel 1591813733577d33ec56479667b49e1bff42dc6bba90Lauro Ramos Venancio /// GetAddrOfStaticLocalVar - Return the address of a static local variable. 15924c40d98ab7acf5f27fa89b17bd8fc0ef7683df37John McCall llvm::Constant *GetAddrOfStaticLocalVar(const VarDecl *BVD) { 15934c40d98ab7acf5f27fa89b17bd8fc0ef7683df37John McCall return cast<llvm::Constant>(GetAddrOfLocalVar(BVD)); 15944c40d98ab7acf5f27fa89b17bd8fc0ef7683df37John McCall } 15954f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman 1596dde0a94120915fa925d1ffcdb997c7b44dc9fa21Anders Carlsson /// GetAddrOfLocalVar - Return the address of a local variable. 15974c40d98ab7acf5f27fa89b17bd8fc0ef7683df37John McCall llvm::Value *GetAddrOfLocalVar(const VarDecl *VD) { 15984c40d98ab7acf5f27fa89b17bd8fc0ef7683df37John McCall llvm::Value *Res = LocalDeclMap[VD]; 15994c40d98ab7acf5f27fa89b17bd8fc0ef7683df37John McCall assert(Res && "Invalid argument to GetAddrOfLocalVar(), no decl!"); 16004c40d98ab7acf5f27fa89b17bd8fc0ef7683df37John McCall return Res; 16014c40d98ab7acf5f27fa89b17bd8fc0ef7683df37John McCall } 16020dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 160356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// getOpaqueLValueMapping - Given an opaque value expression (which 160456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// must be mapped to an l-value), return its mapping. 160556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall const LValue &getOpaqueLValueMapping(const OpaqueValueExpr *e) { 160656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall assert(OpaqueValueMapping::shouldBindAsLValue(e)); 160756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 160856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall llvm::DenseMap<const OpaqueValueExpr*,LValue>::iterator 160956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall it = OpaqueLValues.find(e); 161056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall assert(it != OpaqueLValues.end() && "no mapping for opaque value!"); 161156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return it->second; 161256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 161356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 161456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// getOpaqueRValueMapping - Given an opaque value expression (which 161556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// must be mapped to an r-value), return its mapping. 161656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall const RValue &getOpaqueRValueMapping(const OpaqueValueExpr *e) { 161756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall assert(!OpaqueValueMapping::shouldBindAsLValue(e)); 161856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 161956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall llvm::DenseMap<const OpaqueValueExpr*,RValue>::iterator 162056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall it = OpaqueRValues.find(e); 162156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall assert(it != OpaqueRValues.end() && "no mapping for opaque value!"); 1622e996ffd240f20a1048179d7727a6ee3227261921John McCall return it->second; 1623e996ffd240f20a1048179d7727a6ee3227261921John McCall } 1624e996ffd240f20a1048179d7727a6ee3227261921John McCall 16254f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman /// getAccessedFieldNo - Given an encoded value and a result number, return 16264f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman /// the input field number being accessed. 16274f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman static unsigned getAccessedFieldNo(unsigned Idx, const llvm::Constant *Elts); 16284f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman 1629ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner llvm::BlockAddress *GetAddrOfLabel(const LabelDecl *L); 16303d00fdc82fd550ae4bfbb2e700a1fc85bbd6d6fdChris Lattner llvm::BasicBlock *GetIndirectGotoBlock(); 16310ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar 16321884eb0b5c55edda4893ddec45e7dbad79758782Anders Carlsson /// EmitNullInitialization - Generate code to set a value of the given type to 16331884eb0b5c55edda4893ddec45e7dbad79758782Anders Carlsson /// null, If the type contains data member pointers, they will be initialized 16341884eb0b5c55edda4893ddec45e7dbad79758782Anders Carlsson /// to -1 in accordance with the Itanium C++ ABI. 16351884eb0b5c55edda4893ddec45e7dbad79758782Anders Carlsson void EmitNullInitialization(llvm::Value *DestPtr, QualType Ty); 1636ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson 1637ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson // EmitVAArg - Generate code to get an argument from the passed in pointer 1638ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson // and update it accordingly. The return value is a pointer to the argument. 1639ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson // FIXME: We should be able to get rid of this method and use the va_arg 16400dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // instruction in LLVM instead once it works well enough. 1641ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson llvm::Value *EmitVAArg(llvm::Value *VAListAddr, QualType Ty); 1642f666b7780d04186521adcaedb0e15dfa4d5e6933Anders Carlsson 1643bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall /// emitArrayLength - Compute the length of an array, even if it's a 1644bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall /// VLA, and drill down to the base element type. 1645bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall llvm::Value *emitArrayLength(const ArrayType *arrayType, 1646bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall QualType &baseType, 1647bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall llvm::Value *&addr); 1648bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall 1649bc8d40d85f3fa1e34569834916f18fecaa635152John McCall /// EmitVLASize - Capture all the sizes for the VLA expressions in 1650bc8d40d85f3fa1e34569834916f18fecaa635152John McCall /// the given variably-modified type and store them in the VLASizeMap. 1651d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// 1652d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// This function can be called with a null (unreachable) insert point. 1653bc8d40d85f3fa1e34569834916f18fecaa635152John McCall void EmitVariablyModifiedType(QualType Ty); 1654bc8d40d85f3fa1e34569834916f18fecaa635152John McCall 1655bc8d40d85f3fa1e34569834916f18fecaa635152John McCall /// getVLASize - Returns an LLVM value that corresponds to the size, 1656bc8d40d85f3fa1e34569834916f18fecaa635152John McCall /// in non-variably-sized elements, of a variable length array type, 1657bc8d40d85f3fa1e34569834916f18fecaa635152John McCall /// plus that largest non-variably-sized element type. Assumes that 1658bc8d40d85f3fa1e34569834916f18fecaa635152John McCall /// the type has already been emitted with EmitVariablyModifiedType. 1659bc8d40d85f3fa1e34569834916f18fecaa635152John McCall std::pair<llvm::Value*,QualType> getVLASize(const VariableArrayType *vla); 1660bc8d40d85f3fa1e34569834916f18fecaa635152John McCall std::pair<llvm::Value*,QualType> getVLASize(QualType vla); 1661dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson 16625f4307b7ba164b03c853c8d3eb4674d33f8967a6Anders Carlsson /// LoadCXXThis - Load the value of 'this'. This function is only valid while 16635f4307b7ba164b03c853c8d3eb4674d33f8967a6Anders Carlsson /// generating code for an C++ member function. 16642504941793b549323f9d29c62507cf21d865fadeJohn McCall llvm::Value *LoadCXXThis() { 16652504941793b549323f9d29c62507cf21d865fadeJohn McCall assert(CXXThisValue && "no 'this' value for this function"); 16662504941793b549323f9d29c62507cf21d865fadeJohn McCall return CXXThisValue; 16672504941793b549323f9d29c62507cf21d865fadeJohn McCall } 16681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1669c997d4278d329e18891aac9698fb991b2d4622ebAnders Carlsson /// LoadCXXVTT - Load the VTT parameter to base constructors/destructors have 1670c997d4278d329e18891aac9698fb991b2d4622ebAnders Carlsson /// virtual bases. 16712504941793b549323f9d29c62507cf21d865fadeJohn McCall llvm::Value *LoadCXXVTT() { 16722504941793b549323f9d29c62507cf21d865fadeJohn McCall assert(CXXVTTValue && "no VTT value for this function"); 16732504941793b549323f9d29c62507cf21d865fadeJohn McCall return CXXVTTValue; 16742504941793b549323f9d29c62507cf21d865fadeJohn McCall } 1675bff225ecf77fb891596ecb1b27196310d268365eJohn McCall 1676bff225ecf77fb891596ecb1b27196310d268365eJohn McCall /// GetAddressOfBaseOfCompleteClass - Convert the given pointer to a 16778561a8666c70f924c8f0209c41b9b77bbbf90607Anders Carlsson /// complete class to the given direct base. 16788561a8666c70f924c8f0209c41b9b77bbbf90607Anders Carlsson llvm::Value * 16798561a8666c70f924c8f0209c41b9b77bbbf90607Anders Carlsson GetAddressOfDirectBaseInCompleteClass(llvm::Value *Value, 16808561a8666c70f924c8f0209c41b9b77bbbf90607Anders Carlsson const CXXRecordDecl *Derived, 16818561a8666c70f924c8f0209c41b9b77bbbf90607Anders Carlsson const CXXRecordDecl *Base, 16828561a8666c70f924c8f0209c41b9b77bbbf90607Anders Carlsson bool BaseIsVirtual); 1683a88ad5618fcb07c5374c79d6781a33234984b039Anders Carlsson 1684f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// GetAddressOfBaseClass - This function will add the necessary delta to the 1685f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// load of 'this' and returns address of the base class. 16869cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer llvm::Value *GetAddressOfBaseClass(llvm::Value *Value, 16878561a8666c70f924c8f0209c41b9b77bbbf90607Anders Carlsson const CXXRecordDecl *Derived, 1688f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastExpr::path_const_iterator PathBegin, 1689f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastExpr::path_const_iterator PathEnd, 169034a2d384c745ebc39cae45dc1c0c4a6a7012e09bAnders Carlsson bool NullCheckValue); 169134a2d384c745ebc39cae45dc1c0c4a6a7012e09bAnders Carlsson 1692a3697c9c155bda93fd2802f37084b620f4738822Anders Carlsson llvm::Value *GetAddressOfDerivedClass(llvm::Value *Value, 16938561a8666c70f924c8f0209c41b9b77bbbf90607Anders Carlsson const CXXRecordDecl *Derived, 1694f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastExpr::path_const_iterator PathBegin, 1695f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastExpr::path_const_iterator PathEnd, 16965a0f49ebc83e7fe0da07b9964c44b0a7fae270cbAnders Carlsson bool NullCheckValue); 1697a3697c9c155bda93fd2802f37084b620f4738822Anders Carlsson 1698bb7e17b52ffaa4097b4c4d7935746d23539ffe2aAnders Carlsson llvm::Value *GetVirtualBaseClassOffset(llvm::Value *This, 1699bb7e17b52ffaa4097b4c4d7935746d23539ffe2aAnders Carlsson const CXXRecordDecl *ClassDecl, 1700bb7e17b52ffaa4097b4c4d7935746d23539ffe2aAnders Carlsson const CXXRecordDecl *BaseClassDecl); 17019cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 1702c0bf462cf35fe050bddbd8bff967298e4a67e79dJohn McCall void EmitDelegateCXXConstructorCall(const CXXConstructorDecl *Ctor, 1703c0bf462cf35fe050bddbd8bff967298e4a67e79dJohn McCall CXXCtorType CtorType, 1704c0bf462cf35fe050bddbd8bff967298e4a67e79dJohn McCall const FunctionArgList &Args); 1705059ce0d92eb5a7da900ae735dc0a2ea3d64f4b0bSean Hunt // It's important not to confuse this and the previous function. Delegating 1706059ce0d92eb5a7da900ae735dc0a2ea3d64f4b0bSean Hunt // constructors are the C++0x feature. The constructor delegate optimization 1707059ce0d92eb5a7da900ae735dc0a2ea3d64f4b0bSean Hunt // is used to reduce duplication in the base and complete consturctors where 1708059ce0d92eb5a7da900ae735dc0a2ea3d64f4b0bSean Hunt // they are substantially the same. 1709059ce0d92eb5a7da900ae735dc0a2ea3d64f4b0bSean Hunt void EmitDelegatingCXXConstructorCall(const CXXConstructorDecl *Ctor, 1710059ce0d92eb5a7da900ae735dc0a2ea3d64f4b0bSean Hunt const FunctionArgList &Args); 1711155ed4a23366f4514befb1c9f5f89d16f8b8b6dbAnders Carlsson void EmitCXXConstructorCall(const CXXConstructorDecl *D, CXXCtorType Type, 1712155ed4a23366f4514befb1c9f5f89d16f8b8b6dbAnders Carlsson bool ForVirtualBase, llvm::Value *This, 1713b14095aa98c6fedd3625920c4ce834bcaf24d9f7Anders Carlsson CallExpr::const_arg_iterator ArgBeg, 1714b14095aa98c6fedd3625920c4ce834bcaf24d9f7Anders Carlsson CallExpr::const_arg_iterator ArgEnd); 171534999876e215b22febc240b1a6dc054215d12f9cFariborz Jahanian 171634999876e215b22febc240b1a6dc054215d12f9cFariborz Jahanian void EmitSynthesizedCXXCopyCtorCall(const CXXConstructorDecl *D, 171734999876e215b22febc240b1a6dc054215d12f9cFariborz Jahanian llvm::Value *This, llvm::Value *Src, 171834999876e215b22febc240b1a6dc054215d12f9cFariborz Jahanian CallExpr::const_arg_iterator ArgBeg, 171934999876e215b22febc240b1a6dc054215d12f9cFariborz Jahanian CallExpr::const_arg_iterator ArgEnd); 17201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1721288dcaf329c49b01dacd5c1dd9f35609555feecdFariborz Jahanian void EmitCXXAggrConstructorCall(const CXXConstructorDecl *D, 1722569c1f4a6c703eaa8b963bed7d5c2fd5d4569e93Anders Carlsson const ConstantArrayType *ArrayTy, 17235d4d946ec2d88696fd8422aeb64dc29688e6a2c1Anders Carlsson llvm::Value *ArrayPtr, 17245d4d946ec2d88696fd8422aeb64dc29688e6a2c1Anders Carlsson CallExpr::const_arg_iterator ArgBeg, 172559174c0633fb5cde41735cfbff5744bdf837e8d9Douglas Gregor CallExpr::const_arg_iterator ArgEnd, 172659174c0633fb5cde41735cfbff5744bdf837e8d9Douglas Gregor bool ZeroInitialization = false); 17279cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 1728569c1f4a6c703eaa8b963bed7d5c2fd5d4569e93Anders Carlsson void EmitCXXAggrConstructorCall(const CXXConstructorDecl *D, 1729569c1f4a6c703eaa8b963bed7d5c2fd5d4569e93Anders Carlsson llvm::Value *NumElements, 17305d4d946ec2d88696fd8422aeb64dc29688e6a2c1Anders Carlsson llvm::Value *ArrayPtr, 17315d4d946ec2d88696fd8422aeb64dc29688e6a2c1Anders Carlsson CallExpr::const_arg_iterator ArgBeg, 173259174c0633fb5cde41735cfbff5744bdf837e8d9Douglas Gregor CallExpr::const_arg_iterator ArgEnd, 173359174c0633fb5cde41735cfbff5744bdf837e8d9Douglas Gregor bool ZeroInitialization = false); 1734b14095aa98c6fedd3625920c4ce834bcaf24d9f7Anders Carlsson 1735bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall static Destroyer destroyCXXObject; 1736bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall 17377267c1693abe7875b0c57268be05005ae013c6c9Anders Carlsson void EmitCXXDestructorCall(const CXXDestructorDecl *D, CXXDtorType Type, 17388e6404ca28d6bbb76e97ea2a53a74816c2a74665Anders Carlsson bool ForVirtualBase, llvm::Value *This); 17399cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 1740197056726ed6412501130c2ef2ff69009772aa65John McCall void EmitNewArrayInitializer(const CXXNewExpr *E, QualType elementType, 1741197056726ed6412501130c2ef2ff69009772aa65John McCall llvm::Value *NewPtr, llvm::Value *NumElements); 17421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1743f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall void EmitCXXTemporary(const CXXTemporary *Temporary, llvm::Value *Ptr); 17441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1745a00703dccbdc6cc4a293db38477dea7db5538c7eAnders Carlsson llvm::Value *EmitCXXNewExpr(const CXXNewExpr *E); 174660e282cc1e508be327b0481cecedc206873cb86aAnders Carlsson void EmitCXXDeleteExpr(const CXXDeleteExpr *E); 17471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17484bf8152799ec41796f989ea1b94f6f1bac349117Eli Friedman void EmitDeleteCall(const FunctionDecl *DeleteFD, llvm::Value *Ptr, 17494bf8152799ec41796f989ea1b94f6f1bac349117Eli Friedman QualType DeleteTy); 17504bf8152799ec41796f989ea1b94f6f1bac349117Eli Friedman 1751c2e84ae9a6d25cea3e583c768e576b4c981ec028Mike Stump llvm::Value* EmitCXXTypeidExpr(const CXXTypeidExpr *E); 1752c849c052d6b4b70f2651c1969531861a5f230053Mike Stump llvm::Value *EmitDynamicCast(llvm::Value *V, const CXXDynamicCastExpr *DCE); 1753c2e84ae9a6d25cea3e583c768e576b4c981ec028Mike Stump 1754b14e62d5aee7522b98c410ee65bd750c2cfe6f01Mike Stump void EmitCheck(llvm::Value *, unsigned Size); 1755b14e62d5aee7522b98c410ee65bd750c2cfe6f01Mike Stump 1756dd36d328730d8c02915d0884541b45ec6ca0049dChris Lattner llvm::Value *EmitScalarPrePostIncDec(const UnaryOperator *E, LValue LV, 1757dd36d328730d8c02915d0884541b45ec6ca0049dChris Lattner bool isInc, bool isPre); 1758dd36d328730d8c02915d0884541b45ec6ca0049dChris Lattner ComplexPairTy EmitComplexPrePostIncDec(const UnaryOperator *E, LValue LV, 1759dd36d328730d8c02915d0884541b45ec6ca0049dChris Lattner bool isInc, bool isPre); 17605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 17615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Declaration Emission 17625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 17630dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1764d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// EmitDecl - Emit a declaration. 1765d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// 1766d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// This function can be called with a null (unreachable) insert point. 17675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitDecl(const Decl &D); 1768d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar 1769b6bbcc9995186799a60ce17d0c1acff31601653aJohn McCall /// EmitVarDecl - Emit a local variable declaration. 1770d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// 1771d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// This function can be called with a null (unreachable) insert point. 1772b6bbcc9995186799a60ce17d0c1acff31601653aJohn McCall void EmitVarDecl(const VarDecl &D); 1773d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar 1774f85e193739c953358c865005855253af4f68a497John McCall void EmitScalarInit(const Expr *init, const ValueDecl *D, 1775a07398ed98ea2b55ad7a505a3aab18aed93b149fJohn McCall LValue lvalue, bool capturedByInit); 17767acddacc921cd0b3f813443a8641eeddb82dfbd4John McCall void EmitScalarInit(llvm::Value *init, LValue lvalue); 1777f85e193739c953358c865005855253af4f68a497John McCall 1778f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall typedef void SpecialInitFn(CodeGenFunction &Init, const VarDecl &D, 1779f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::Value *Address); 1780f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 1781b6bbcc9995186799a60ce17d0c1acff31601653aJohn McCall /// EmitAutoVarDecl - Emit an auto variable declaration. 1782d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// 1783d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// This function can be called with a null (unreachable) insert point. 178434695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall void EmitAutoVarDecl(const VarDecl &D); 178534695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall 178634695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall class AutoVarEmission { 178734695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall friend class CodeGenFunction; 178834695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall 178957b3b6a60856eaec30fd876a8a3face8f7e3ad7bJohn McCall const VarDecl *Variable; 179034695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall 179134695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall /// The alignment of the variable. 179234695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall CharUnits Alignment; 179334695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall 179434695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall /// The address of the alloca. Null if the variable was emitted 179534695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall /// as a global constant. 179634695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall llvm::Value *Address; 179734695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall 179834695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall llvm::Value *NRVOFlag; 179934695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall 180034695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall /// True if the variable is a __block variable. 180134695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall bool IsByRef; 180234695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall 180334695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall /// True if the variable is of aggregate type and has a constant 180434695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall /// initializer. 180534695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall bool IsConstantAggregate; 180634695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall 180757b3b6a60856eaec30fd876a8a3face8f7e3ad7bJohn McCall struct Invalid {}; 180857b3b6a60856eaec30fd876a8a3face8f7e3ad7bJohn McCall AutoVarEmission(Invalid) : Variable(0) {} 180957b3b6a60856eaec30fd876a8a3face8f7e3ad7bJohn McCall 181034695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall AutoVarEmission(const VarDecl &variable) 181157b3b6a60856eaec30fd876a8a3face8f7e3ad7bJohn McCall : Variable(&variable), Address(0), NRVOFlag(0), 181234695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall IsByRef(false), IsConstantAggregate(false) {} 181334695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall 181434695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall bool wasEmittedAsGlobal() const { return Address == 0; } 181534695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall 181634695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall public: 181757b3b6a60856eaec30fd876a8a3face8f7e3ad7bJohn McCall static AutoVarEmission invalid() { return AutoVarEmission(Invalid()); } 181857b3b6a60856eaec30fd876a8a3face8f7e3ad7bJohn McCall 181934695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall /// Returns the address of the object within this declaration. 182034695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall /// Note that this does not chase the forwarding pointer for 182134695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall /// __block decls. 182234695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall llvm::Value *getObjectAddress(CodeGenFunction &CGF) const { 182334695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall if (!IsByRef) return Address; 182434695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall 182534695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall return CGF.Builder.CreateStructGEP(Address, 182657b3b6a60856eaec30fd876a8a3face8f7e3ad7bJohn McCall CGF.getByRefValueLLVMField(Variable), 182757b3b6a60856eaec30fd876a8a3face8f7e3ad7bJohn McCall Variable->getNameAsString()); 182834695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall } 182934695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall }; 183034695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall AutoVarEmission EmitAutoVarAlloca(const VarDecl &var); 183134695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall void EmitAutoVarInit(const AutoVarEmission &emission); 183234695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall void EmitAutoVarCleanups(const AutoVarEmission &emission); 1833bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall void emitAutoVarTypeCleanup(const AutoVarEmission &emission, 1834bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall QualType::DestructionKind dtorKind); 1835d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar 1836b6bbcc9995186799a60ce17d0c1acff31601653aJohn McCall void EmitStaticVarDecl(const VarDecl &D, 1837b6bbcc9995186799a60ce17d0c1acff31601653aJohn McCall llvm::GlobalValue::LinkageTypes Linkage); 1838b7ec246872b412f0e7bb9e93eacfd78cfa6adfb3Daniel Dunbar 1839b7ec246872b412f0e7bb9e93eacfd78cfa6adfb3Daniel Dunbar /// EmitParmDecl - Emit a ParmVarDecl or an ImplicitParamDecl. 1840093ac461b37a573dcf226fa55faed96f318169b9Devang Patel void EmitParmDecl(const VarDecl &D, llvm::Value *Arg, unsigned ArgNo); 18410dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 184256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// protectFromPeepholes - Protect a value that we're intending to 184356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// store to the side, but which will probably be used later, from 184456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// aggressive peepholing optimizations that might delete it. 184556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// 184656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// Pass the result to unprotectFromPeepholes to declare that 184756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// protection is no longer required. 184856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// 184956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// There's no particular reason why this shouldn't apply to 185056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// l-values, it's just that no existing peepholes work on pointers. 185156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall PeepholeProtection protectFromPeepholes(RValue rvalue); 185256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall void unprotectFromPeepholes(PeepholeProtection protection); 185356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 18545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 18555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Statement Emission 18565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 18575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 18580dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitStopPoint - Emit a debug stoppoint if we are emitting debug info. 18590912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar void EmitStopPoint(const Stmt *S); 18600912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar 18610dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitStmt - Emit the code for the statement \arg S. It is legal to call 18620dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// this function even if there is no current insertion point. 18630dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// 18640dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// This function may clear the current insertion point; callers should use 18650dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EnsureInsertPoint if they wish to subsequently generate code without first 18660dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// calling EmitBlock, EmitBranch, or EmitStmt. 18675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitStmt(const Stmt *S); 1868a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 18690912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar /// EmitSimpleStmt - Try to emit a "simple" statement which does not 18700dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// necessarily require an insertion point or debug information; typically 18710dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// because the statement amounts to a jump or a container of other 18720dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// statements. 18730912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar /// 18740912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar /// \return True if the statement was handled. 18750912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar bool EmitSimpleStmt(const Stmt *S); 18760912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar 18779b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner RValue EmitCompoundStmt(const CompoundStmt &S, bool GetLast = false, 1878558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall AggValueSlot AVS = AggValueSlot::ignored()); 1879a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 18800dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitLabel - Emit the block for the given label. It is legal to call this 18810dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// function even if there is no current insertion point. 1882ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner void EmitLabel(const LabelDecl *D); // helper for EmitLabelStmt. 1883a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 18845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitLabelStmt(const LabelStmt &S); 18855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitGotoStmt(const GotoStmt &S); 18860ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar void EmitIndirectGotoStmt(const IndirectGotoStmt &S); 18875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitIfStmt(const IfStmt &S); 18885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitWhileStmt(const WhileStmt &S); 18895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitDoStmt(const DoStmt &S); 18905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitForStmt(const ForStmt &S); 18915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitReturnStmt(const ReturnStmt &S); 18925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitDeclStmt(const DeclStmt &S); 18930912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar void EmitBreakStmt(const BreakStmt &S); 18940912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar void EmitContinueStmt(const ContinueStmt &S); 189551b09f2c528c8460b5465c676173324e44176d62Devang Patel void EmitSwitchStmt(const SwitchStmt &S); 189651b09f2c528c8460b5465c676173324e44176d62Devang Patel void EmitDefaultStmt(const DefaultStmt &S); 189751b09f2c528c8460b5465c676173324e44176d62Devang Patel void EmitCaseStmt(const CaseStmt &S); 1898c049e4f406a7f7179eba98659044a32508e53289Devang Patel void EmitCaseStmtRange(const CaseStmt &S); 1899fb1aeb804c08d5288a923fb278161783e6abdc66Anders Carlsson void EmitAsmStmt(const AsmStmt &S); 19000dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 19013d8400d9a61aa4b63ff35e5cede405b32a41425eAnders Carlsson void EmitObjCForCollectionStmt(const ObjCForCollectionStmt &S); 190264d5d6c5903157c521af496479d06dc26032d718Anders Carlsson void EmitObjCAtTryStmt(const ObjCAtTryStmt &S); 190364d5d6c5903157c521af496479d06dc26032d718Anders Carlsson void EmitObjCAtThrowStmt(const ObjCAtThrowStmt &S); 190410cac6f7115b59a466bb8d2d51cdddeb38aadc37Chris Lattner void EmitObjCAtSynchronizedStmt(const ObjCAtSynchronizedStmt &S); 1905f85e193739c953358c865005855253af4f68a497John McCall void EmitObjCAutoreleasePoolStmt(const ObjCAutoreleasePoolStmt &S); 19060dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 190793c332a8ba2c193c435b293966d343dab15f555bJohn McCall llvm::Constant *getUnwindResumeFn(); 190886a3a03667bdb0dcab7e6a2877dfd234b07a6d43Douglas Gregor llvm::Constant *getUnwindResumeOrRethrowFn(); 190959a7000a79118e4c140885ccbb2ac6a686a73092John McCall void EnterCXXTryStmt(const CXXTryStmt &S, bool IsFnTryBlock = false); 191059a7000a79118e4c140885ccbb2ac6a686a73092John McCall void ExitCXXTryStmt(const CXXTryStmt &S, bool IsFnTryBlock = false); 19119fc6a7774643a810c8501dae2323e863fefb623eJohn McCall 19126815e941998659a55c20c147861b0f437928c3d8Anders Carlsson void EmitCXXTryStmt(const CXXTryStmt &S); 1913ad762fcdc16b9e4705b12b09d92b8c026212b906Richard Smith void EmitCXXForRangeStmt(const CXXForRangeStmt &S); 19149cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 19155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 19165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // LValue Expression Emission 19175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 19185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 191913e81737a433b23f8c662d10d1d57356122a8caaDaniel Dunbar /// GetUndefRValue - Get an appropriate 'undef' rvalue for the given type. 192013e81737a433b23f8c662d10d1d57356122a8caaDaniel Dunbar RValue GetUndefRValue(QualType Ty); 192113e81737a433b23f8c662d10d1d57356122a8caaDaniel Dunbar 1922ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar /// EmitUnsupportedRValue - Emit a dummy r-value using the type of E 1923ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar /// and issue an ErrorUnsupported style diagnostic (using the 1924ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar /// provided Name). 1925ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar RValue EmitUnsupportedRValue(const Expr *E, 1926ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar const char *Name); 1927ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar 19280dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitUnsupportedLValue - Emit a dummy l-value using the type of E and issue 19290dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// an ErrorUnsupported style diagnostic (using the provided Name). 19306ba82a4a4b295e54cf192c3e98b28f39990c6194Daniel Dunbar LValue EmitUnsupportedLValue(const Expr *E, 19316ba82a4a4b295e54cf192c3e98b28f39990c6194Daniel Dunbar const char *Name); 19326ba82a4a4b295e54cf192c3e98b28f39990c6194Daniel Dunbar 19335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EmitLValue - Emit code to compute a designator that specifies the location 19345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// of the expression. 19355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 19365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// This can return one of two things: a simple address or a bitfield 19375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// reference. In either case, the LLVM Value* in the LValue structure is 19385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// guaranteed to be an LLVM pointer type. 19395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 19405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// If this returns a bitfield reference, nothing about the pointee type of 19415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// the LLVM value is known: For example, it may not be a pointer to an 19425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// integer. 19435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 19445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// If this returns a normal address, and if the lvalue's C type is fixed 19455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// size, this method guarantees that the returned pointer type will point to 19465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// an LLVM type of the same size of the lvalue's type. If the lvalue has a 19475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// variable length type, this is not possible. 19485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 19495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitLValue(const Expr *E); 19500dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1951b14e62d5aee7522b98c410ee65bd750c2cfe6f01Mike Stump /// EmitCheckedLValue - Same as EmitLValue but additionally we generate 1952b14e62d5aee7522b98c410ee65bd750c2cfe6f01Mike Stump /// checking code to guard against undefined behavior. This is only 1953b14e62d5aee7522b98c410ee65bd750c2cfe6f01Mike Stump /// suitable when we know that the address will be used to access the 1954b14e62d5aee7522b98c410ee65bd750c2cfe6f01Mike Stump /// object. 1955b14e62d5aee7522b98c410ee65bd750c2cfe6f01Mike Stump LValue EmitCheckedLValue(const Expr *E); 1956b14e62d5aee7522b98c410ee65bd750c2cfe6f01Mike Stump 195726815d97c5743481e317f17a8d53a6819d061862John McCall /// EmitToMemory - Change a scalar value from its value 195826815d97c5743481e317f17a8d53a6819d061862John McCall /// representation to its in-memory representation. 195926815d97c5743481e317f17a8d53a6819d061862John McCall llvm::Value *EmitToMemory(llvm::Value *Value, QualType Ty); 196026815d97c5743481e317f17a8d53a6819d061862John McCall 196126815d97c5743481e317f17a8d53a6819d061862John McCall /// EmitFromMemory - Change a scalar value from its memory 196226815d97c5743481e317f17a8d53a6819d061862John McCall /// representation to its value representation. 196326815d97c5743481e317f17a8d53a6819d061862John McCall llvm::Value *EmitFromMemory(llvm::Value *Value, QualType Ty); 196426815d97c5743481e317f17a8d53a6819d061862John McCall 19659d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// EmitLoadOfScalar - Load a scalar value from an address, taking 19669d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// care to appropriately convert from the memory representation to 19679d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// the LLVM value representation. 196809429b962811f2c0a7a81a1b0a89f96f5878b20cMike Stump llvm::Value *EmitLoadOfScalar(llvm::Value *Addr, bool Volatile, 19693d5aff5d3036b0ff09d114857cd2276134b3d8c9Dan Gohman unsigned Alignment, QualType Ty, 19703d5aff5d3036b0ff09d114857cd2276134b3d8c9Dan Gohman llvm::MDNode *TBAAInfo = 0); 1971545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall 1972545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall /// EmitLoadOfScalar - Load a scalar value from an address, taking 1973545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall /// care to appropriately convert from the memory representation to 1974545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall /// the LLVM value representation. The l-value must be a simple 1975545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall /// l-value. 1976a07398ed98ea2b55ad7a505a3aab18aed93b149fJohn McCall llvm::Value *EmitLoadOfScalar(LValue lvalue); 19779d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar 19789d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// EmitStoreOfScalar - Store a scalar value to an address, taking 19799d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// care to appropriately convert from the memory representation to 19809d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// the LLVM value representation. 198109429b962811f2c0a7a81a1b0a89f96f5878b20cMike Stump void EmitStoreOfScalar(llvm::Value *Value, llvm::Value *Addr, 19823d5aff5d3036b0ff09d114857cd2276134b3d8c9Dan Gohman bool Volatile, unsigned Alignment, QualType Ty, 19833d5aff5d3036b0ff09d114857cd2276134b3d8c9Dan Gohman llvm::MDNode *TBAAInfo = 0); 1984545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall 1985545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall /// EmitStoreOfScalar - Store a scalar value to an address, taking 1986545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall /// care to appropriately convert from the memory representation to 1987545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall /// the LLVM value representation. The l-value must be a simple 1988545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall /// l-value. 1989a07398ed98ea2b55ad7a505a3aab18aed93b149fJohn McCall void EmitStoreOfScalar(llvm::Value *value, LValue lvalue); 19909d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar 19915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EmitLoadOfLValue - Given an expression that represents a value lvalue, 19925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// this method emits the address of the lvalue, then loads the result as an 19935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// rvalue, returning the rvalue. 1994545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall RValue EmitLoadOfLValue(LValue V); 1995545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall RValue EmitLoadOfExtVectorElementLValue(LValue V); 1996545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall RValue EmitLoadOfBitfieldLValue(LValue LV); 1997119a1c6c4029d30cae7b31a2826aa0ff70d01668John McCall RValue EmitLoadOfPropertyRefLValue(LValue LV, 1998119a1c6c4029d30cae7b31a2826aa0ff70d01668John McCall ReturnValueSlot Return = ReturnValueSlot()); 19990dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 20005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EmitStoreThroughLValue - Store the specified rvalue into the specified 20015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// lvalue, where both are guaranteed to the have the same type, and that type 20025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// is 'Ty'. 2003545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall void EmitStoreThroughLValue(RValue Src, LValue Dst); 2004545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall void EmitStoreThroughExtVectorComponentLValue(RValue Src, LValue Dst); 2005119a1c6c4029d30cae7b31a2826aa0ff70d01668John McCall void EmitStoreThroughPropertyRefLValue(RValue Src, LValue Dst); 2006ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar 20070dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitStoreThroughLValue - Store Src into Dst with same constraints as 20080dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitStoreThroughLValue. 2009ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar /// 20100dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// \param Result [out] - If non-null, this will be set to a Value* for the 20110dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// bit-field contents after the store, appropriate for use as the result of 20120dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// an assignment to the bit-field. 2013545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall void EmitStoreThroughBitfieldLValue(RValue Src, LValue Dst, 2014ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar llvm::Value **Result=0); 20150dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 201683ce9d4a552987d34cbd500e983db8d770232379John McCall /// Emit an l-value for an assignment (simple or compound) of complex type. 201783ce9d4a552987d34cbd500e983db8d770232379John McCall LValue EmitComplexAssignmentLValue(const BinaryOperator *E); 20182a41637a995affa1563f4d82a8b026e326a2faa0John McCall LValue EmitComplexCompoundAssignmentLValue(const CompoundAssignOperator *E); 201983ce9d4a552987d34cbd500e983db8d770232379John McCall 2020fc8f0e14ad142ed811e90fbd9a30e419e301c717Chris Lattner // Note: only available for agg return types 202180e62c29fe21cd06c93eba6e72b7e32dca06fcf9Daniel Dunbar LValue EmitBinaryOperatorLValue(const BinaryOperator *E); 20222a41637a995affa1563f4d82a8b026e326a2faa0John McCall LValue EmitCompoundAssignmentLValue(const CompoundAssignOperator *E); 20235b5c9ef865607e179413462dcd71bcebb5b7daaeDaniel Dunbar // Note: only available for agg return types 202422c940ee588a420cd2e6c8f68be2ac3cc80061ffChristopher Lamb LValue EmitCallExprLValue(const CallExpr *E); 20255b5c9ef865607e179413462dcd71bcebb5b7daaeDaniel Dunbar // Note: only available for agg return types 20265b5c9ef865607e179413462dcd71bcebb5b7daaeDaniel Dunbar LValue EmitVAArgExprLValue(const VAArgExpr *E); 20275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitDeclRefLValue(const DeclRefExpr *E); 20285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitStringLiteralLValue(const StringLiteral *E); 2029eaf2bb89eb2aad3b80673de30febe52df43c10ecChris Lattner LValue EmitObjCEncodeExprLValue(const ObjCEncodeExpr *E); 2030d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner LValue EmitPredefinedLValue(const PredefinedExpr *E); 20315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitUnaryOpLValue(const UnaryOperator *E); 20325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitArraySubscriptExpr(const ArraySubscriptExpr *E); 2033213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman LValue EmitExtVectorElementExpr(const ExtVectorElementExpr *E); 2034b84a06e68ffd71da22e3c75b6e4bbdba37816413Devang Patel LValue EmitMemberExpr(const MemberExpr *E); 2035820bca41c3899374775d2a1dfc2ef2e22aaf1c7bFariborz Jahanian LValue EmitObjCIsaExpr(const ObjCIsaExpr *E); 203606e863f2902b8ba55b056308875c19f7ba3dab25Eli Friedman LValue EmitCompoundLiteralLValue(const CompoundLiteralExpr *E); 203756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall LValue EmitConditionalOperatorLValue(const AbstractConditionalOperator *E); 203875dfedaf702822c9e51a4f3c5d3ecf2d2ad99272Chris Lattner LValue EmitCastLValue(const CastExpr *E); 2039ed8abf18329df67b0abcbb3a10458bd8c1d2a595Douglas Gregor LValue EmitNullInitializationLValue(const CXXScalarValueInitExpr *E); 204003e80030515c800d1ab44125b9052dfffd1bd04cDouglas Gregor LValue EmitMaterializeTemporaryExpr(const MaterializeTemporaryExpr *E); 2041e996ffd240f20a1048179d7727a6ee3227261921John McCall LValue EmitOpaqueValueLValue(const OpaqueValueExpr *e); 20429cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 20434b9c2d235fb9449e249d74f48ecfec601650de93John McCall RValue EmitPseudoObjectRValue(const PseudoObjectExpr *e, 20444b9c2d235fb9449e249d74f48ecfec601650de93John McCall AggValueSlot slot = AggValueSlot::ignored()); 20454b9c2d235fb9449e249d74f48ecfec601650de93John McCall LValue EmitPseudoObjectLValue(const PseudoObjectExpr *e); 20464b9c2d235fb9449e249d74f48ecfec601650de93John McCall 20472a03192a02dbf4fdff438d1e658356bde871aba4Daniel Dunbar llvm::Value *EmitIvarOffset(const ObjCInterfaceDecl *Interface, 204829e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar const ObjCIvarDecl *Ivar); 2049a9976d3b192690db20f59dc44099ac4ca939bdb7John McCall LValue EmitLValueForAnonRecordField(llvm::Value* Base, 205000eb3f9c5b33e3d99aee1f8b75dd9c9678fdd66bFrancois Pichet const IndirectFieldDecl* Field, 2051a9976d3b192690db20f59dc44099ac4ca939bdb7John McCall unsigned CVRQualifiers); 20520ed303c918915cbe2c611cddbfabd00404664831Anders Carlsson LValue EmitLValueForField(llvm::Value* Base, const FieldDecl* Field, 2053e6d2a534851a649485cb087e9dfcaf8a65886858Anders Carlsson unsigned CVRQualifiers); 20549cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 205506a2970e9480c6d02b367b2f970baff29b9f9721Anders Carlsson /// EmitLValueForFieldInitialization - Like EmitLValueForField, except that 205606a2970e9480c6d02b367b2f970baff29b9f9721Anders Carlsson /// if the Field is a reference, this will return the address of the reference 205706a2970e9480c6d02b367b2f970baff29b9f9721Anders Carlsson /// and not the address of the value stored in the reference. 20589cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer LValue EmitLValueForFieldInitialization(llvm::Value* Base, 205906a2970e9480c6d02b367b2f970baff29b9f9721Anders Carlsson const FieldDecl* Field, 206006a2970e9480c6d02b367b2f970baff29b9f9721Anders Carlsson unsigned CVRQualifiers); 20619cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 206245012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian LValue EmitLValueForIvar(QualType ObjectTy, 206345012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian llvm::Value* Base, const ObjCIvarDecl *Ivar, 206429e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar unsigned CVRQualifiers); 206529e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar 20660ed303c918915cbe2c611cddbfabd00404664831Anders Carlsson LValue EmitLValueForBitfield(llvm::Value* Base, const FieldDecl* Field, 2067598d3f61b6ca854e9d3c2f3359e24468502a61aaFariborz Jahanian unsigned CVRQualifiers); 2068fd64bb635dc221baa19f81d5d2a084f7eb269f7fFariborz Jahanian 2069a99038c0757a836c6faeeddaa5dfd249b32f6e9eMike Stump LValue EmitBlockDeclRefLValue(const BlockDeclRefExpr *E); 2070a99038c0757a836c6faeeddaa5dfd249b32f6e9eMike Stump 2071b58d017f2b9eeed33f2ab3ede968b89cf5296bf2Anders Carlsson LValue EmitCXXConstructLValue(const CXXConstructExpr *E); 2072e61c9e80a108b5db7e5f0e702f0e455d737c6390Anders Carlsson LValue EmitCXXBindTemporaryLValue(const CXXBindTemporaryExpr *E); 20734765fa05b5652fcc4356371c2f481d0ea9a1b007John McCall LValue EmitExprWithCleanupsLValue(const ExprWithCleanups *E); 2074c2e84ae9a6d25cea3e583c768e576b4c981ec028Mike Stump LValue EmitCXXTypeidLValue(const CXXTypeidExpr *E); 20759cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 20760a04d77bde7e3a661c2b41b60630d125d09ed6efDaniel Dunbar LValue EmitObjCMessageExprLValue(const ObjCMessageExpr *E); 2077391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner LValue EmitObjCIvarRefLValue(const ObjCIvarRefExpr *E); 207885c59edda02df48fae8dc85049743319bc6e7e89Daniel Dunbar LValue EmitObjCPropertyRefLValue(const ObjCPropertyRefExpr *E); 2079654599454c8e6cc83b1b9b3af43c49c2f66a26cbChris Lattner LValue EmitStmtExprLValue(const StmtExpr *E); 20808bfd31f9dad09cd52225d868bbd92a9bebe87775Fariborz Jahanian LValue EmitPointerToDataMemberBinaryExpr(const BinaryOperator *E); 208103b2960c14aede6ac82bdef32247094ebb72fa69Fariborz Jahanian LValue EmitObjCSelectorLValue(const ObjCSelectorExpr *E); 2082189d6ef40eff11b83b2cda941d5ed89a5cef09b2John McCall void EmitDeclRefExprDbgValue(const DeclRefExpr *E, llvm::Constant *Init); 208356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 20845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 2085883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner // Scalar Expression Emission 20865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 20875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 20880dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitCall - Generate a call of the given function, expecting the given 20890dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// result type, and using the given argument list which specifies both the 20900dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// LLVM arguments and the types they were derived from. 2091c0ef9f59937c3971c48b6fed37cf5bd8985c024bDaniel Dunbar /// 2092f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// \param TargetDecl - If given, the decl of the function in a direct call; 2093f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// used to set attributes on the call (noreturn, etc.). 209488b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar RValue EmitCall(const CGFunctionInfo &FnInfo, 209588b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar llvm::Value *Callee, 2096f3c47c9525153aea2de0ec4bd615b9cf2d81c103Anders Carlsson ReturnValueSlot ReturnValue, 2097c0ef9f59937c3971c48b6fed37cf5bd8985c024bDaniel Dunbar const CallArgList &Args, 2098dd5c98f709837e5dd3da08d44d1ce407975df2cfDavid Chisnall const Decl *TargetDecl = 0, 20994b02afcb45cd1a384de7d45f440a8be091dd500bDavid Chisnall llvm::Instruction **callOrInvoke = 0); 21001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 210131777a2540879051a3c643b90e02c3fd3d315243Anders Carlsson RValue EmitCall(QualType FnType, llvm::Value *Callee, 2102d2490a91341b57df7a7e54f8a707e7ecde2eeb4eAnders Carlsson ReturnValueSlot ReturnValue, 2103986477149db76e6d9f8d3c9859c9880c11b680aeAnders Carlsson CallExpr::const_arg_iterator ArgBeg, 2104986477149db76e6d9f8d3c9859c9880c11b680aeAnders Carlsson CallExpr::const_arg_iterator ArgEnd, 2105986477149db76e6d9f8d3c9859c9880c11b680aeAnders Carlsson const Decl *TargetDecl = 0); 21069cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer RValue EmitCallExpr(const CallExpr *E, 2107d2490a91341b57df7a7e54f8a707e7ecde2eeb4eAnders Carlsson ReturnValueSlot ReturnValue = ReturnValueSlot()); 21081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2109f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::CallSite EmitCallOrInvoke(llvm::Value *Callee, 21102d3ba4f5a923a90c3fc290ddfba5e36c2d0a9b46Chris Lattner ArrayRef<llvm::Value *> Args, 21118cc488fefb2fb04bc8d5398da29f0182f97934cfChris Lattner const Twine &Name = ""); 21124c7d9f1507d0f102bd4133bba63348636facd469Jay Foad llvm::CallSite EmitCallOrInvoke(llvm::Value *Callee, 21138cc488fefb2fb04bc8d5398da29f0182f97934cfChris Lattner const Twine &Name = ""); 2114f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 2115566abee1e9828a7700b51e4d17ea08234fde3bb4Anders Carlsson llvm::Value *BuildVirtualCall(const CXXMethodDecl *MD, llvm::Value *This, 21162acc6e3feda5e4f7d9009bdcf8b1cd777fecfe2dChris Lattner llvm::Type *Ty); 21179cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer llvm::Value *BuildVirtualCall(const CXXDestructorDecl *DD, CXXDtorType Type, 21182acc6e3feda5e4f7d9009bdcf8b1cd777fecfe2dChris Lattner llvm::Value *This, llvm::Type *Ty); 21192726267f094a0c1f5ac5b501ec5a9898c58876bfFariborz Jahanian llvm::Value *BuildAppleKextVirtualCall(const CXXMethodDecl *MD, 21202726267f094a0c1f5ac5b501ec5a9898c58876bfFariborz Jahanian NestedNameSpecifier *Qual, 21212acc6e3feda5e4f7d9009bdcf8b1cd777fecfe2dChris Lattner llvm::Type *Ty); 2122ccd5259d33cbbdd6f5fbf7ccab4cb4a2702309eaFariborz Jahanian 2123ccd5259d33cbbdd6f5fbf7ccab4cb4a2702309eaFariborz Jahanian llvm::Value *BuildAppleKextVirtualDestructorCall(const CXXDestructorDecl *DD, 2124ccd5259d33cbbdd6f5fbf7ccab4cb4a2702309eaFariborz Jahanian CXXDtorType Type, 2125771c678c04f5f685b4f188ec6c2fd88ad0f7457fFariborz Jahanian const CXXRecordDecl *RD); 2126566abee1e9828a7700b51e4d17ea08234fde3bb4Anders Carlsson 2127b9de2c55b2a33776e2bee8ee57df7599b374c8a5Anders Carlsson RValue EmitCXXMemberCall(const CXXMethodDecl *MD, 2128b9de2c55b2a33776e2bee8ee57df7599b374c8a5Anders Carlsson llvm::Value *Callee, 2129a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson ReturnValueSlot ReturnValue, 2130b9de2c55b2a33776e2bee8ee57df7599b374c8a5Anders Carlsson llvm::Value *This, 2131c997d4278d329e18891aac9698fb991b2d4622ebAnders Carlsson llvm::Value *VTT, 2132b9de2c55b2a33776e2bee8ee57df7599b374c8a5Anders Carlsson CallExpr::const_arg_iterator ArgBeg, 2133b9de2c55b2a33776e2bee8ee57df7599b374c8a5Anders Carlsson CallExpr::const_arg_iterator ArgEnd); 2134a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson RValue EmitCXXMemberCallExpr(const CXXMemberCallExpr *E, 2135a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson ReturnValueSlot ReturnValue); 2136a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson RValue EmitCXXMemberPointerCallExpr(const CXXMemberCallExpr *E, 2137a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson ReturnValueSlot ReturnValue); 21385549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek 2139a2447e0d1e28669cd637204a871f15b1215277fdAnders Carlsson llvm::Value *EmitCXXOperatorMemberCallee(const CXXOperatorCallExpr *E, 2140a2447e0d1e28669cd637204a871f15b1215277fdAnders Carlsson const CXXMethodDecl *MD, 2141a2447e0d1e28669cd637204a871f15b1215277fdAnders Carlsson llvm::Value *This); 21420f294632f36459174199b77699e339715244b5abAnders Carlsson RValue EmitCXXOperatorMemberCallExpr(const CXXOperatorCallExpr *E, 2143a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson const CXXMethodDecl *MD, 2144a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson ReturnValueSlot ReturnValue); 21451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21466c0aa5ff6e6253db0f993053599e2a52b5b93b2dPeter Collingbourne RValue EmitCUDAKernelCallExpr(const CUDAKernelCallExpr *E, 21476c0aa5ff6e6253db0f993053599e2a52b5b93b2dPeter Collingbourne ReturnValueSlot ReturnValue); 21486c0aa5ff6e6253db0f993053599e2a52b5b93b2dPeter Collingbourne 21499cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 21501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump RValue EmitBuiltinExpr(const FunctionDecl *FD, 2151ef2abfee3ea16ec74942dc09e9e425f46aeb2582Daniel Dunbar unsigned BuiltinID, const CallExpr *E); 21525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2153a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson RValue EmitBlockCallExpr(const CallExpr *E, ReturnValueSlot ReturnValue); 215409429b962811f2c0a7a81a1b0a89f96f5878b20cMike Stump 21550dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitTargetBuiltinExpr - Emit the given builtin call. Returns 0 if the call 21560dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// is unhandled by the current target. 2157f02e9ddf5efc75917af712b3c7f909581205f0a5Daniel Dunbar llvm::Value *EmitTargetBuiltinExpr(unsigned BuiltinID, const CallExpr *E); 2158f02e9ddf5efc75917af712b3c7f909581205f0a5Daniel Dunbar 21592752c0137d95aa2f4ee1cdff4b564bac842e041bChris Lattner llvm::Value *EmitARMBuiltinExpr(unsigned BuiltinID, const CallExpr *E); 21609cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer llvm::Value *EmitNeonCall(llvm::Function *F, 2161686775deca8b8685eb90801495880e3abdd844c2Chris Lattner SmallVectorImpl<llvm::Value*> &O, 2162db3d4d036037f379f12643e067b229862d61e932Bob Wilson const char *name, 216361eecf5aea018ea65c9ab0bccacd2996b15c632dNate Begeman unsigned shift = 0, bool rightshift = false); 2164cf55652cf668c1402eee0b12edd2e5a1bc34d7a1Bob Wilson llvm::Value *EmitNeonSplat(llvm::Value *V, llvm::Constant *Idx); 21652acc6e3feda5e4f7d9009bdcf8b1cd777fecfe2dChris Lattner llvm::Value *EmitNeonShiftVector(llvm::Value *V, llvm::Type *Ty, 216661eecf5aea018ea65c9ab0bccacd2996b15c632dNate Begeman bool negateForRightShift); 21679cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 2168686775deca8b8685eb90801495880e3abdd844c2Chris Lattner llvm::Value *BuildVector(const SmallVectorImpl<llvm::Value*> &Ops); 2169564f1de67d7ba43646b8740db86d6269e3dfbe0bAnders Carlsson llvm::Value *EmitX86BuiltinExpr(unsigned BuiltinID, const CallExpr *E); 2170564f1de67d7ba43646b8740db86d6269e3dfbe0bAnders Carlsson llvm::Value *EmitPPCBuiltinExpr(unsigned BuiltinID, const CallExpr *E); 21710dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 2172ed7c618f849e2541b1d0288c43154937652c5b15Daniel Dunbar llvm::Value *EmitObjCProtocolExpr(const ObjCProtocolExpr *E); 21737f02f721d48772e4eee4fccd8af4f800be1bbc1eChris Lattner llvm::Value *EmitObjCStringLiteral(const ObjCStringLiteral *E); 21748fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner llvm::Value *EmitObjCSelectorExpr(const ObjCSelectorExpr *E); 2175ef072fd2f3347cfd857d6eb787b245b950771430John McCall RValue EmitObjCMessageExpr(const ObjCMessageExpr *E, 2176ef072fd2f3347cfd857d6eb787b245b950771430John McCall ReturnValueSlot Return = ReturnValueSlot()); 21778fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner 2178f85e193739c953358c865005855253af4f68a497John McCall /// Retrieves the default cleanup kind for an ARC cleanup. 2179f85e193739c953358c865005855253af4f68a497John McCall /// Except under -fobjc-arc-eh, ARC cleanups are normal-only. 2180f85e193739c953358c865005855253af4f68a497John McCall CleanupKind getARCCleanupKind() { 2181f85e193739c953358c865005855253af4f68a497John McCall return CGM.getCodeGenOpts().ObjCAutoRefCountExceptions 2182f85e193739c953358c865005855253af4f68a497John McCall ? NormalAndEHCleanup : NormalCleanup; 2183f85e193739c953358c865005855253af4f68a497John McCall } 2184f85e193739c953358c865005855253af4f68a497John McCall 2185f85e193739c953358c865005855253af4f68a497John McCall // ARC primitives. 2186f85e193739c953358c865005855253af4f68a497John McCall void EmitARCInitWeak(llvm::Value *value, llvm::Value *addr); 2187f85e193739c953358c865005855253af4f68a497John McCall void EmitARCDestroyWeak(llvm::Value *addr); 2188f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCLoadWeak(llvm::Value *addr); 2189f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCLoadWeakRetained(llvm::Value *addr); 2190f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCStoreWeak(llvm::Value *value, llvm::Value *addr, 2191f85e193739c953358c865005855253af4f68a497John McCall bool ignored); 2192f85e193739c953358c865005855253af4f68a497John McCall void EmitARCCopyWeak(llvm::Value *dst, llvm::Value *src); 2193f85e193739c953358c865005855253af4f68a497John McCall void EmitARCMoveWeak(llvm::Value *dst, llvm::Value *src); 2194f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCRetainAutorelease(QualType type, llvm::Value *value); 2195f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCRetainAutoreleaseNonBlock(llvm::Value *value); 2196545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall llvm::Value *EmitARCStoreStrong(LValue lvalue, llvm::Value *value, 2197545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall bool ignored); 2198f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCStoreStrongCall(llvm::Value *addr, llvm::Value *value, 2199f85e193739c953358c865005855253af4f68a497John McCall bool ignored); 2200f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCRetain(QualType type, llvm::Value *value); 2201f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCRetainNonBlock(llvm::Value *value); 2202348f16fc7c71f0d9b651cb79fd1012843073493fJohn McCall llvm::Value *EmitARCRetainBlock(llvm::Value *value, bool mandatory); 2203f85e193739c953358c865005855253af4f68a497John McCall void EmitARCRelease(llvm::Value *value, bool precise); 2204f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCAutorelease(llvm::Value *value); 2205f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCAutoreleaseReturnValue(llvm::Value *value); 2206f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCRetainAutoreleaseReturnValue(llvm::Value *value); 2207f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCRetainAutoreleasedReturnValue(llvm::Value *value); 2208f85e193739c953358c865005855253af4f68a497John McCall 2209f85e193739c953358c865005855253af4f68a497John McCall std::pair<LValue,llvm::Value*> 2210f85e193739c953358c865005855253af4f68a497John McCall EmitARCStoreAutoreleasing(const BinaryOperator *e); 2211f85e193739c953358c865005855253af4f68a497John McCall std::pair<LValue,llvm::Value*> 2212f85e193739c953358c865005855253af4f68a497John McCall EmitARCStoreStrong(const BinaryOperator *e, bool ignored); 2213f85e193739c953358c865005855253af4f68a497John McCall 22142b014d6c0c6b8ac94b416ac37dfc7931f20777a7John McCall llvm::Value *EmitObjCThrowOperand(const Expr *expr); 22152b014d6c0c6b8ac94b416ac37dfc7931f20777a7John McCall 2216f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitObjCProduceObject(QualType T, llvm::Value *Ptr); 2217f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitObjCConsumeObject(QualType T, llvm::Value *Ptr); 2218f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitObjCExtendObjectLifetime(QualType T, llvm::Value *Ptr); 2219f85e193739c953358c865005855253af4f68a497John McCall 2220348f16fc7c71f0d9b651cb79fd1012843073493fJohn McCall llvm::Value *EmitARCExtendBlockObject(const Expr *expr); 2221f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCRetainScalarExpr(const Expr *expr); 2222f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCRetainAutoreleaseScalarExpr(const Expr *expr); 2223f85e193739c953358c865005855253af4f68a497John McCall 2224bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall static Destroyer destroyARCStrongImprecise; 2225bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall static Destroyer destroyARCStrongPrecise; 2226bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall static Destroyer destroyARCWeak; 2227bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall 2228f85e193739c953358c865005855253af4f68a497John McCall void EmitObjCAutoreleasePoolPop(llvm::Value *Ptr); 2229f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitObjCAutoreleasePoolPush(); 2230f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitObjCMRRAutoreleasePoolPush(); 2231f85e193739c953358c865005855253af4f68a497John McCall void EmitObjCAutoreleasePoolCleanup(llvm::Value *Ptr); 2232f85e193739c953358c865005855253af4f68a497John McCall void EmitObjCMRRAutoreleasePoolPop(llvm::Value *Ptr); 2233f85e193739c953358c865005855253af4f68a497John McCall 22344029ca7ae9d3ffd7738fe2ed8782bebc30f36fd6Anders Carlsson /// EmitReferenceBindingToExpr - Emits a reference binding to the passed in 22354029ca7ae9d3ffd7738fe2ed8782bebc30f36fd6Anders Carlsson /// expression. Will emit a temporary variable if E is not an LValue. 22369cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer RValue EmitReferenceBindingToExpr(const Expr* E, 223732f36baa6c8d491c374af622b4e3ac28d597453cAnders Carlsson const NamedDecl *InitializedDecl); 22383aba09376c5f49c4c8d176109ea4835bc2c528eeAnders Carlsson 2239883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner //===--------------------------------------------------------------------===// 2240bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattner // Expression Emission 2241883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner //===--------------------------------------------------------------------===// 2242bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattner 2243bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattner // Expressions are broken into three classes: scalar, complex, aggregate. 22440dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 22450dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitScalarExpr - Emit the computation of the specified expression of LLVM 22460dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// scalar type, returning the result. 224714c5cbf59cffee52275230922283a247de407712Anders Carlsson llvm::Value *EmitScalarExpr(const Expr *E , bool IgnoreResultAssign = false); 22480dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 22493707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner /// EmitScalarConversion - Emit a conversion from the specified type to the 22503707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner /// specified destination type, both of which are LLVM scalar types. 22513707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner llvm::Value *EmitScalarConversion(llvm::Value *Src, QualType SrcTy, 22523707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner QualType DstTy); 22530dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 22544f1a7b380809b4ca19ad2daff61bc11cd1e979d8Chris Lattner /// EmitComplexToScalarConversion - Emit a conversion from the specified 22550dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// complex type to the specified destination type, where the destination type 22560dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// is an LLVM scalar type. 22574f1a7b380809b4ca19ad2daff61bc11cd1e979d8Chris Lattner llvm::Value *EmitComplexToScalarConversion(ComplexPairTy Src, QualType SrcTy, 22584f1a7b380809b4ca19ad2daff61bc11cd1e979d8Chris Lattner QualType DstTy); 22590dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 22600dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 2261558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// EmitAggExpr - Emit the computation of the specified expression 2262558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// of aggregate type. The result is computed into the given slot, 2263558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// which may be null to indicate that the value is not needed. 2264474e2fe4957e6e72cee36ed189eaf21878ad0e91Fariborz Jahanian void EmitAggExpr(const Expr *E, AggValueSlot AS, bool IgnoreResult = false); 22650dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 226618aba0dd518e486d8b50523e7dafb4b5657135d2Daniel Dunbar /// EmitAggExprToLValue - Emit the computation of the specified expression of 226718aba0dd518e486d8b50523e7dafb4b5657135d2Daniel Dunbar /// aggregate type into a temporary LValue. 226818aba0dd518e486d8b50523e7dafb4b5657135d2Daniel Dunbar LValue EmitAggExprToLValue(const Expr *E); 226918aba0dd518e486d8b50523e7dafb4b5657135d2Daniel Dunbar 2270082b02e8403d3ee9d2ded969fbe0e5d472f04cd8Fariborz Jahanian /// EmitGCMemmoveCollectable - Emit special API for structs with object 2271082b02e8403d3ee9d2ded969fbe0e5d472f04cd8Fariborz Jahanian /// pointers. 2272082b02e8403d3ee9d2ded969fbe0e5d472f04cd8Fariborz Jahanian void EmitGCMemmoveCollectable(llvm::Value *DestPtr, llvm::Value *SrcPtr, 227308c321380fff07d476a19daab6d29522c046cd49Fariborz Jahanian QualType Ty); 2274082b02e8403d3ee9d2ded969fbe0e5d472f04cd8Fariborz Jahanian 22750c24c808e4dce43e88abf2d5f98546b901bd4315John McCall /// EmitExtendGCLifetime - Given a pointer to an Objective-C object, 22760c24c808e4dce43e88abf2d5f98546b901bd4315John McCall /// make sure it survives garbage collection until this point. 22770c24c808e4dce43e88abf2d5f98546b901bd4315John McCall void EmitExtendGCLifetime(llvm::Value *object); 22780c24c808e4dce43e88abf2d5f98546b901bd4315John McCall 2279b6ef18a2b06d6760459e1756a61f79ff496cee19Chris Lattner /// EmitComplexExpr - Emit the computation of the specified expression of 228023b1cdb0b5e089468bb8475b8ec9287af67b4b59Chris Lattner /// complex type, returning the result. 2281b418d74c11498b7e1044103131e2e3be4d63512eJohn McCall ComplexPairTy EmitComplexExpr(const Expr *E, 2282b418d74c11498b7e1044103131e2e3be4d63512eJohn McCall bool IgnoreReal = false, 2283b418d74c11498b7e1044103131e2e3be4d63512eJohn McCall bool IgnoreImag = false); 22840dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 228523b1cdb0b5e089468bb8475b8ec9287af67b4b59Chris Lattner /// EmitComplexExprIntoAddr - Emit the computation of the specified expression 228623b1cdb0b5e089468bb8475b8ec9287af67b4b59Chris Lattner /// of complex type, storing into the specified Value*. 2287190dbe203c2e892ac40f1786035c6c9be3f44a4cChris Lattner void EmitComplexExprIntoAddr(const Expr *E, llvm::Value *DestAddr, 2288190dbe203c2e892ac40f1786035c6c9be3f44a4cChris Lattner bool DestIsVolatile); 22897f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar 22907f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar /// StoreComplexToAddr - Store a complex number into the specified address. 22917f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar void StoreComplexToAddr(ComplexPairTy V, llvm::Value *DestAddr, 22927f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar bool DestIsVolatile); 22939b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// LoadComplexFromAddr - Load a complex number from the specified address. 22949b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner ComplexPairTy LoadComplexFromAddr(llvm::Value *SrcAddr, bool SrcIsVolatile); 22952621fd1d6d3c5eadcae246859f62738645df7540Chris Lattner 2296b6bbcc9995186799a60ce17d0c1acff31601653aJohn McCall /// CreateStaticVarDecl - Create a zero-initialized LLVM global for 2297b6bbcc9995186799a60ce17d0c1acff31601653aJohn McCall /// a static local variable. 2298b6bbcc9995186799a60ce17d0c1acff31601653aJohn McCall llvm::GlobalVariable *CreateStaticVarDecl(const VarDecl &D, 2299b6bbcc9995186799a60ce17d0c1acff31601653aJohn McCall const char *Separator, 2300f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump llvm::GlobalValue::LinkageTypes Linkage); 23019cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 2302b6bbcc9995186799a60ce17d0c1acff31601653aJohn McCall /// AddInitializerToStaticVarDecl - Add the initializer for 'D' to the 2303761acc19d966a67f2175783d09412d6ac9463400Chris Lattner /// global variable that has already been created for it. If the initializer 2304761acc19d966a67f2175783d09412d6ac9463400Chris Lattner /// has a different type than GV does, this may free GV and return a different 2305761acc19d966a67f2175783d09412d6ac9463400Chris Lattner /// one. Otherwise it just returns GV. 2306761acc19d966a67f2175783d09412d6ac9463400Chris Lattner llvm::GlobalVariable * 2307b6bbcc9995186799a60ce17d0c1acff31601653aJohn McCall AddInitializerToStaticVarDecl(const VarDecl &D, 2308b6bbcc9995186799a60ce17d0c1acff31601653aJohn McCall llvm::GlobalVariable *GV); 23099cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 23100096acf421c4609ce7f43e8b05f8c5ca866d4611Daniel Dunbar 23113b2e16b3d25f6b311dba2871e2a566c96238c3d2Anders Carlsson /// EmitCXXGlobalVarDeclInit - Create the initializer for a C++ 23123b2e16b3d25f6b311dba2871e2a566c96238c3d2Anders Carlsson /// variable with global storage. 23133b2e16b3d25f6b311dba2871e2a566c96238c3d2Anders Carlsson void EmitCXXGlobalVarDeclInit(const VarDecl &D, llvm::Constant *DeclPtr); 23143b2e16b3d25f6b311dba2871e2a566c96238c3d2Anders Carlsson 23153b2e16b3d25f6b311dba2871e2a566c96238c3d2Anders Carlsson /// EmitCXXGlobalDtorRegistration - Emits a call to register the global ptr 23163b2e16b3d25f6b311dba2871e2a566c96238c3d2Anders Carlsson /// with the C++ runtime so that its destructor will be called at exit. 231788f4280f6b60edcbdea6a38a3da8b17d66473ad6Fariborz Jahanian void EmitCXXGlobalDtorRegistration(llvm::Constant *DtorFn, 23183b2e16b3d25f6b311dba2871e2a566c96238c3d2Anders Carlsson llvm::Constant *DeclPtr); 23191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23203030eb82593097502469a8b3fc26112c79c75605John McCall /// Emit code in this function to perform a guarded variable 23213030eb82593097502469a8b3fc26112c79c75605John McCall /// initialization. Guarded initializations are used when it's not 23223030eb82593097502469a8b3fc26112c79c75605John McCall /// possible to prove that an initialization will be done exactly 23233030eb82593097502469a8b3fc26112c79c75605John McCall /// once, e.g. with a static local variable or a static data member 23243030eb82593097502469a8b3fc26112c79c75605John McCall /// of a class template. 23253030eb82593097502469a8b3fc26112c79c75605John McCall void EmitCXXGuardedInit(const VarDecl &D, llvm::GlobalVariable *DeclPtr); 23265cd91b513455fd7753e8815b54f0a49bbca6602dJohn McCall 2327efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar /// GenerateCXXGlobalInitFunc - Generates code for initializing global 2328efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar /// variables. 2329efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar void GenerateCXXGlobalInitFunc(llvm::Function *Fn, 2330efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar llvm::Constant **Decls, 2331efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar unsigned NumDecls); 2332efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar 2333efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar /// GenerateCXXGlobalDtorFunc - Generates code for destroying global 2334efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar /// variables. 2335efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar void GenerateCXXGlobalDtorFunc(llvm::Function *Fn, 2336810112e28dc839715d17b0a786f23aaa19600ac0Chris Lattner const std::vector<std::pair<llvm::WeakVH, 2337efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar llvm::Constant*> > &DtorsAndObjects); 2338efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar 2339d26bc76c98006609002d9930f8840490e88ac5b5John McCall void GenerateCXXGlobalVarDeclInitFunc(llvm::Function *Fn, 2340d26bc76c98006609002d9930f8840490e88ac5b5John McCall const VarDecl *D, 23413030eb82593097502469a8b3fc26112c79c75605John McCall llvm::GlobalVariable *Addr); 2342efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar 2343558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall void EmitCXXConstructExpr(const CXXConstructExpr *E, AggValueSlot Dest); 234434999876e215b22febc240b1a6dc054215d12f9cFariborz Jahanian 234534999876e215b22febc240b1a6dc054215d12f9cFariborz Jahanian void EmitSynthesizedCXXCopyCtor(llvm::Value *Dest, llvm::Value *Src, 2346830937bc1100fba7682f7c32c40512085870f50cFariborz Jahanian const Expr *Exp); 23471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23484765fa05b5652fcc4356371c2f481d0ea9a1b007John McCall RValue EmitExprWithCleanups(const ExprWithCleanups *E, 23494765fa05b5652fcc4356371c2f481d0ea9a1b007John McCall AggValueSlot Slot =AggValueSlot::ignored()); 23501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2351756b5c4f9d52642d87d1948bee58f97a4f795b24Anders Carlsson void EmitCXXThrowExpr(const CXXThrowExpr *E); 23521eb2e59338c4b9c0429fc39ca98662adc9e7a3f2Douglas Gregor 2353276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman RValue EmitAtomicExpr(AtomicExpr *E, llvm::Value *Dest = 0); 2354276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 23550ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar //===--------------------------------------------------------------------===// 235677f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge // Annotations Emission 235777f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge //===--------------------------------------------------------------------===// 235877f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge 235977f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge /// Emit an annotation call (intrinsic or builtin). 236077f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge llvm::Value *EmitAnnotationCall(llvm::Value *AnnotationFn, 236177f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge llvm::Value *AnnotatedVal, 236277f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge llvm::StringRef AnnotationStr, 236377f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge SourceLocation Location); 236477f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge 236577f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge /// Emit local annotations for the local variable V, declared by D. 236677f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge void EmitVarAnnotations(const VarDecl *D, llvm::Value *V); 236777f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge 236877f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge /// Emit field annotations for the given field & value. Returns the 236977f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge /// annotation result. 237077f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge llvm::Value *EmitFieldAnnotations(const FieldDecl *D, llvm::Value *V); 237177f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge 237277f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge //===--------------------------------------------------------------------===// 23730ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar // Internal Helpers 23740ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar //===--------------------------------------------------------------------===// 23750dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 23760946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner /// ContainsLabel - Return true if the statement contains a label in it. If 23770946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner /// this statement is not executed normally, it not containing a label means 23780946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner /// that we can just remove the code. 23790946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner static bool ContainsLabel(const Stmt *S, bool IgnoreCaseStmts = false); 23800dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 2381ef425a69006afaa87751ee41ccf8ff405d9ede70Chris Lattner /// containsBreak - Return true if the statement contains a break out of it. 2382ef425a69006afaa87751ee41ccf8ff405d9ede70Chris Lattner /// If the statement (recursively) contains a switch or loop with a break 2383ef425a69006afaa87751ee41ccf8ff405d9ede70Chris Lattner /// inside of it, this is fine. 2384ef425a69006afaa87751ee41ccf8ff405d9ede70Chris Lattner static bool containsBreak(const Stmt *S); 2385ef425a69006afaa87751ee41ccf8ff405d9ede70Chris Lattner 23864bc0455d826e9634b7a68c0d06146edd633c9453Daniel Dunbar /// ConstantFoldsToSimpleInteger - If the specified expression does not fold 2387c2c90011a688c04a4e980282f08c267e081c4b00Chris Lattner /// to a constant, or if it does but contains a label, return false. If it 2388c2c90011a688c04a4e980282f08c267e081c4b00Chris Lattner /// constant folds return true and set the boolean result in Result. 2389c2c90011a688c04a4e980282f08c267e081c4b00Chris Lattner bool ConstantFoldsToSimpleInteger(const Expr *Cond, bool &Result); 23900dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 2391ef425a69006afaa87751ee41ccf8ff405d9ede70Chris Lattner /// ConstantFoldsToSimpleInteger - If the specified expression does not fold 2392ef425a69006afaa87751ee41ccf8ff405d9ede70Chris Lattner /// to a constant, or if it does but contains a label, return false. If it 2393ef425a69006afaa87751ee41ccf8ff405d9ede70Chris Lattner /// constant folds return true and set the folded value. 2394ef425a69006afaa87751ee41ccf8ff405d9ede70Chris Lattner bool ConstantFoldsToSimpleInteger(const Expr *Cond, llvm::APInt &Result); 2395ef425a69006afaa87751ee41ccf8ff405d9ede70Chris Lattner 239631a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// EmitBranchOnBoolExpr - Emit a branch on a boolean condition (e.g. for an 239731a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// if statement) to the specified blocks. Based on the condition, this might 239831a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// try to simplify the codegen of the conditional based on the branch. 23999bc47e29dce8f095be7a6d07dbb02a5a7a112949Chris Lattner void EmitBranchOnBoolExpr(const Expr *Cond, llvm::BasicBlock *TrueBlock, 24004bc0455d826e9634b7a68c0d06146edd633c9453Daniel Dunbar llvm::BasicBlock *FalseBlock); 2401be07f60131bc6f8d6696f4644df1ef667a1730d5Mike Stump 240215037caa1542bb810ad54c653aeb80f61df7b00cMike Stump /// getTrapBB - Create a basic block that will call the trap intrinsic. We'll 240315037caa1542bb810ad54c653aeb80f61df7b00cMike Stump /// generate a branch around the created basic block as necessary. 24046c552c1d5f47fbba00e6268d96a26ad026f2da2aChris Lattner llvm::BasicBlock *getTrapBB(); 24059cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 240621c9ad9d29d08a287292c670e7c52bc522c7f8bbAnders Carlsson /// EmitCallArg - Emit a single call argument. 2407413ebdb1af6fb0d81845b61254daf02ba0449afdJohn McCall void EmitCallArg(CallArgList &args, const Expr *E, QualType ArgType); 240821c9ad9d29d08a287292c670e7c52bc522c7f8bbAnders Carlsson 24092736071ea3a46f90e65c93418961611d96c10ab9John McCall /// EmitDelegateCallArg - We are performing a delegate call; that 24102736071ea3a46f90e65c93418961611d96c10ab9John McCall /// is, the current function is delegating to another one. Produce 24112736071ea3a46f90e65c93418961611d96c10ab9John McCall /// a r-value suitable for passing the given parameter. 2412413ebdb1af6fb0d81845b61254daf02ba0449afdJohn McCall void EmitDelegateCallArg(CallArgList &args, const VarDecl *param); 24132736071ea3a46f90e65c93418961611d96c10ab9John McCall 2414c5096cbf7a42e0f9012945b00d9037a5b5a88d72Peter Collingbourne /// SetFPAccuracy - Set the minimum required accuracy of the given floating 2415c5096cbf7a42e0f9012945b00d9037a5b5a88d72Peter Collingbourne /// point operation, expressed as the maximum relative error in ulp. 2416c5096cbf7a42e0f9012945b00d9037a5b5a88d72Peter Collingbourne void SetFPAccuracy(llvm::Value *Val, unsigned AccuracyN, 2417c5096cbf7a42e0f9012945b00d9037a5b5a88d72Peter Collingbourne unsigned AccuracyD = 1); 2418c5096cbf7a42e0f9012945b00d9037a5b5a88d72Peter Collingbourne 241931a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattnerprivate: 242029e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar void EmitReturnOfRValue(RValue RV, QualType Ty); 242129e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar 24225627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// ExpandTypeFromArgs - Reconstruct a structure of type \arg Ty 24235627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// from function arguments into \arg Dst. See ABIArgInfo::Expand. 24245627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// 24255627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// \param AI - The first function argument of the expansion. 24265627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// \return The argument following the last expanded function 24275627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// argument. 24280dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump llvm::Function::arg_iterator 24295627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar ExpandTypeFromArgs(QualType Ty, LValue Dst, 24305627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar llvm::Function::arg_iterator AI); 24315627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar 24320dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// ExpandTypeToArgs - Expand an RValue \arg Src, with the LLVM type for \arg 24330dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// Ty, into individual arguments on the provided vector \arg Args. See 24340dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// ABIArgInfo::Expand. 24350dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump void ExpandTypeToArgs(QualType Ty, RValue Src, 2436686775deca8b8685eb90801495880e3abdd844c2Chris Lattner SmallVector<llvm::Value*, 16> &Args, 2437811bf3669f4d82c57fe3cd3c49050fdbc95d0affChris Lattner llvm::FunctionType *IRFuncTy); 2438c8c7b187adcd989e01a9fba1ebead6c2abd770c9Anders Carlsson 24391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump llvm::Value* EmitAsmInput(const AsmStmt &S, 2440b84e8a670ad1d00c0a34295c42ac700cdde04815Daniel Dunbar const TargetInfo::ConstraintInfo &Info, 2441c8c7b187adcd989e01a9fba1ebead6c2abd770c9Anders Carlsson const Expr *InputExpr, std::string &ConstraintStr); 24420dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 24436d7cfd7ef82e42ff30ee1dafd2883fd94e9f8294Eli Friedman llvm::Value* EmitAsmInputLValue(const AsmStmt &S, 24446d7cfd7ef82e42ff30ee1dafd2883fd94e9f8294Eli Friedman const TargetInfo::ConstraintInfo &Info, 24456d7cfd7ef82e42ff30ee1dafd2883fd94e9f8294Eli Friedman LValue InputValue, QualType InputType, 24466d7cfd7ef82e42ff30ee1dafd2883fd94e9f8294Eli Friedman std::string &ConstraintStr); 24476d7cfd7ef82e42ff30ee1dafd2883fd94e9f8294Eli Friedman 24480139bb96494b4c4ba0824617d5d2495dc7e44c76Anders Carlsson /// EmitCallArgs - Emit call arguments for a function. 24491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// The CallArgTypeInfo parameter is used for iterating over the known 2450af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson /// argument types of the function being called. 2451af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson template<typename T> 2452af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson void EmitCallArgs(CallArgList& Args, const T* CallArgTypeInfo, 24530139bb96494b4c4ba0824617d5d2495dc7e44c76Anders Carlsson CallExpr::const_arg_iterator ArgBeg, 2454af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson CallExpr::const_arg_iterator ArgEnd) { 2455af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson CallExpr::const_arg_iterator Arg = ArgBeg; 2456af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson 2457af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson // First, use the argument types that the type info knows about 2458af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson if (CallArgTypeInfo) { 2459af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson for (typename T::arg_type_iterator I = CallArgTypeInfo->arg_type_begin(), 2460af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson E = CallArgTypeInfo->arg_type_end(); I != E; ++I, ++Arg) { 246144b0a3e858af7b19f489619e52cd58970611cd15Eli Friedman assert(Arg != ArgEnd && "Running over edge of argument list!"); 2462af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson QualType ArgType = *I; 2463745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian#ifndef NDEBUG 2464745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian QualType ActualArgType = Arg->getType(); 2465745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian if (ArgType->isPointerType() && ActualArgType->isPointerType()) { 24669cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer QualType ActualBaseType = 2467745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian ActualArgType->getAs<PointerType>()->getPointeeType(); 24689cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer QualType ArgBaseType = 2469745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian ArgType->getAs<PointerType>()->getPointeeType(); 2470745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian if (ArgBaseType->isVariableArrayType()) { 2471745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian if (const VariableArrayType *VAT = 2472745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian getContext().getAsVariableArrayType(ActualBaseType)) { 2473745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian if (!VAT->getSizeExpr()) 2474745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian ActualArgType = ArgType; 2475745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian } 2476745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian } 2477745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian } 2478af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson assert(getContext().getCanonicalType(ArgType.getNonReferenceType()). 24791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getTypePtr() == 2480745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian getContext().getCanonicalType(ActualArgType).getTypePtr() && 2481af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson "type mismatch in call argument!"); 2482745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian#endif 2483413ebdb1af6fb0d81845b61254daf02ba0449afdJohn McCall EmitCallArg(Args, *Arg, ArgType); 2484af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson } 24851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Either we've emitted all the call args, or we have a call to a 2487af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson // variadic function. 24881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert((Arg == ArgEnd || CallArgTypeInfo->isVariadic()) && 2489af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson "Extra arguments in non-variadic function!"); 24901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2491af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson } 24921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2493af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson // If we still have any arguments, emit them using the type of the argument. 2494413ebdb1af6fb0d81845b61254daf02ba0449afdJohn McCall for (; Arg != ArgEnd; ++Arg) 2495413ebdb1af6fb0d81845b61254daf02ba0449afdJohn McCall EmitCallArg(Args, *Arg, Arg->getType()); 2496af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson } 2497492c4f998d848673d3d6c9e6416115df4036a71dJohn McCall 2498492c4f998d848673d3d6c9e6416115df4036a71dJohn McCall const TargetCodeGenInfo &getTargetHooks() const { 2499492c4f998d848673d3d6c9e6416115df4036a71dJohn McCall return CGM.getTargetCodeGenInfo(); 2500492c4f998d848673d3d6c9e6416115df4036a71dJohn McCall } 2501744016dde06fcffd50931e94a98c850f8b12cd87John McCall 2502744016dde06fcffd50931e94a98c850f8b12cd87John McCall void EmitDeclMetadata(); 2503f0c11f7e6848f023ced6a5b51399ba787c7d4d0bJohn McCall 2504f0c11f7e6848f023ced6a5b51399ba787c7d4d0bJohn McCall CodeGenModule::ByrefHelpers * 25052acc6e3feda5e4f7d9009bdcf8b1cd777fecfe2dChris Lattner buildByrefHelpers(llvm::StructType &byrefType, 2506f0c11f7e6848f023ced6a5b51399ba787c7d4d0bJohn McCall const AutoVarEmission &emission); 25075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 25081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2509150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall/// Helper class with most of the code for saving a value for a 2510150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall/// conditional expression cleanup. 2511804b807ea918184d6de63bd745e1ff75a9bfc679John McCallstruct DominatingLLVMValue { 2512150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall typedef llvm::PointerIntPair<llvm::Value*, 1, bool> saved_type; 2513150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 2514150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// Answer whether the given value needs extra work to be saved. 2515150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall static bool needsSaving(llvm::Value *value) { 2516150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall // If it's not an instruction, we don't need to save. 2517150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall if (!isa<llvm::Instruction>(value)) return false; 2518150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 2519150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall // If it's an instruction in the entry block, we don't need to save. 2520150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall llvm::BasicBlock *block = cast<llvm::Instruction>(value)->getParent(); 2521150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall return (block != &block->getParent()->getEntryBlock()); 2522150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 2523150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 2524150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// Try to save the given value. 2525150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall static saved_type save(CodeGenFunction &CGF, llvm::Value *value) { 2526150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall if (!needsSaving(value)) return saved_type(value, false); 2527150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 2528150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall // Otherwise we need an alloca. 2529150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall llvm::Value *alloca = 2530150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall CGF.CreateTempAlloca(value->getType(), "cond-cleanup.save"); 2531150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall CGF.Builder.CreateStore(value, alloca); 2532150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 2533150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall return saved_type(alloca, true); 2534150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 2535150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 2536150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall static llvm::Value *restore(CodeGenFunction &CGF, saved_type value) { 2537150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall if (!value.getInt()) return value.getPointer(); 2538150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall return CGF.Builder.CreateLoad(value.getPointer()); 2539150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 2540150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall}; 2541150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 2542804b807ea918184d6de63bd745e1ff75a9bfc679John McCall/// A partial specialization of DominatingValue for llvm::Values that 2543804b807ea918184d6de63bd745e1ff75a9bfc679John McCall/// might be llvm::Instructions. 2544804b807ea918184d6de63bd745e1ff75a9bfc679John McCalltemplate <class T> struct DominatingPointer<T,true> : DominatingLLVMValue { 2545804b807ea918184d6de63bd745e1ff75a9bfc679John McCall typedef T *type; 2546804b807ea918184d6de63bd745e1ff75a9bfc679John McCall static type restore(CodeGenFunction &CGF, saved_type value) { 2547804b807ea918184d6de63bd745e1ff75a9bfc679John McCall return static_cast<T*>(DominatingLLVMValue::restore(CGF, value)); 2548804b807ea918184d6de63bd745e1ff75a9bfc679John McCall } 2549804b807ea918184d6de63bd745e1ff75a9bfc679John McCall}; 2550804b807ea918184d6de63bd745e1ff75a9bfc679John McCall 2551804b807ea918184d6de63bd745e1ff75a9bfc679John McCall/// A specialization of DominatingValue for RValue. 2552804b807ea918184d6de63bd745e1ff75a9bfc679John McCalltemplate <> struct DominatingValue<RValue> { 2553804b807ea918184d6de63bd745e1ff75a9bfc679John McCall typedef RValue type; 2554804b807ea918184d6de63bd745e1ff75a9bfc679John McCall class saved_type { 2555804b807ea918184d6de63bd745e1ff75a9bfc679John McCall enum Kind { ScalarLiteral, ScalarAddress, AggregateLiteral, 2556804b807ea918184d6de63bd745e1ff75a9bfc679John McCall AggregateAddress, ComplexAddress }; 2557804b807ea918184d6de63bd745e1ff75a9bfc679John McCall 2558804b807ea918184d6de63bd745e1ff75a9bfc679John McCall llvm::Value *Value; 2559804b807ea918184d6de63bd745e1ff75a9bfc679John McCall Kind K; 2560804b807ea918184d6de63bd745e1ff75a9bfc679John McCall saved_type(llvm::Value *v, Kind k) : Value(v), K(k) {} 2561804b807ea918184d6de63bd745e1ff75a9bfc679John McCall 2562804b807ea918184d6de63bd745e1ff75a9bfc679John McCall public: 2563804b807ea918184d6de63bd745e1ff75a9bfc679John McCall static bool needsSaving(RValue value); 2564804b807ea918184d6de63bd745e1ff75a9bfc679John McCall static saved_type save(CodeGenFunction &CGF, RValue value); 2565804b807ea918184d6de63bd745e1ff75a9bfc679John McCall RValue restore(CodeGenFunction &CGF); 2566804b807ea918184d6de63bd745e1ff75a9bfc679John McCall 2567804b807ea918184d6de63bd745e1ff75a9bfc679John McCall // implementations in CGExprCXX.cpp 2568804b807ea918184d6de63bd745e1ff75a9bfc679John McCall }; 2569804b807ea918184d6de63bd745e1ff75a9bfc679John McCall 2570804b807ea918184d6de63bd745e1ff75a9bfc679John McCall static bool needsSaving(type value) { 2571804b807ea918184d6de63bd745e1ff75a9bfc679John McCall return saved_type::needsSaving(value); 2572804b807ea918184d6de63bd745e1ff75a9bfc679John McCall } 2573804b807ea918184d6de63bd745e1ff75a9bfc679John McCall static saved_type save(CodeGenFunction &CGF, type value) { 2574804b807ea918184d6de63bd745e1ff75a9bfc679John McCall return saved_type::save(CGF, value); 2575804b807ea918184d6de63bd745e1ff75a9bfc679John McCall } 2576150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall static type restore(CodeGenFunction &CGF, saved_type value) { 2577804b807ea918184d6de63bd745e1ff75a9bfc679John McCall return value.restore(CGF); 2578150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 2579150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall}; 2580150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 25815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace CodeGen 25825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace clang 25835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 25845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#endif 2585