CodeGenFunction.h revision 55fc873017f10f6f566b182b70f6fc22aefa3464
1bd012ff1fa088181646a784f385b28867372d434Daniel Dunbar//===-- CodeGenFunction.h - Per-Function state for LLVM CodeGen -*- C++ -*-===// 25f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 35f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// The LLVM Compiler Infrastructure 45f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 50bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// This file is distributed under the University of Illinois Open Source 60bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// License. See LICENSE.TXT for details. 75f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 85f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 95f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 100dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump// This is the internal per-function state used for llvm translation. 115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14ef52a2fb2ace36c92f88c6e125bd7defa17dafa5Chris Lattner#ifndef CLANG_CODEGEN_CODEGENFUNCTION_H 15ef52a2fb2ace36c92f88c6e125bd7defa17dafa5Chris Lattner#define CLANG_CODEGEN_CODEGENFUNCTION_H 165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1755fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "CGBuilder.h" 1855fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "CGDebugInfo.h" 1955fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "CGValue.h" 2055fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "CodeGenModule.h" 2155fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/AST/CharUnits.h" 22e3a09e6ad09f8d1387ecaa008aaf85527909da0aArgyrios Kyrtzidis#include "clang/AST/ExprCXX.h" 235549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek#include "clang/AST/ExprObjC.h" 2455fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/AST/Type.h" 2514110477887e3dc168ffc6c191e72d705051f99ePeter Collingbourne#include "clang/Basic/ABI.h" 26481769b5dc102b0256b35581e787909ad5edfab5Chris Lattner#include "clang/Basic/TargetInfo.h" 2755fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/Frontend/CodeGenOptions.h" 284c7d9f1507d0f102bd4133bba63348636facd469Jay Foad#include "llvm/ADT/ArrayRef.h" 29481769b5dc102b0256b35581e787909ad5edfab5Chris Lattner#include "llvm/ADT/DenseMap.h" 30481769b5dc102b0256b35581e787909ad5edfab5Chris Lattner#include "llvm/ADT/SmallVector.h" 31c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher#include "llvm/Support/Debug.h" 3255fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "llvm/Support/ValueHandle.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 { 465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class ASTContext; 471a343ebbf413e8eae6b2737b2b2d79cbf5765571John McCall class BlockDecl; 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 /// 22570517ca5c07c4b41ff8662b94ee22047b0299f8cDmitri Gribenko // \param flags cleanup kind. 226ad346f4f678ab1c3222425641d851dc63e9dfa1aJohn McCall virtual void Emit(CodeGenFunction &CGF, Flags flags) = 0; 227da65ea86482bc116906edfb9ba1d7124f76cc867John McCall }; 228da65ea86482bc116906edfb9ba1d7124f76cc867John McCall 229150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// ConditionalCleanupN stores the saved form of its N parameters, 230150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// then restores them and performs the cleanup. 2313ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall template <class T, class A0> 2323ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall class ConditionalCleanup1 : public Cleanup { 233804b807ea918184d6de63bd745e1ff75a9bfc679John McCall typedef typename DominatingValue<A0>::saved_type A0_saved; 2343ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall A0_saved a0_saved; 2353ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall 236ad346f4f678ab1c3222425641d851dc63e9dfa1aJohn McCall void Emit(CodeGenFunction &CGF, Flags flags) { 237804b807ea918184d6de63bd745e1ff75a9bfc679John McCall A0 a0 = DominatingValue<A0>::restore(CGF, a0_saved); 238ad346f4f678ab1c3222425641d851dc63e9dfa1aJohn McCall T(a0).Emit(CGF, flags); 2393ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall } 2403ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall 2413ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall public: 2423ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall ConditionalCleanup1(A0_saved a0) 2433ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall : a0_saved(a0) {} 2443ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall }; 2453ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall 246150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall template <class T, class A0, class A1> 2473ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall class ConditionalCleanup2 : public Cleanup { 248804b807ea918184d6de63bd745e1ff75a9bfc679John McCall typedef typename DominatingValue<A0>::saved_type A0_saved; 249804b807ea918184d6de63bd745e1ff75a9bfc679John McCall typedef typename DominatingValue<A1>::saved_type A1_saved; 2504bbcbda302cba8b1b0d88c20d735d09b483bd005John McCall A0_saved a0_saved; 2514bbcbda302cba8b1b0d88c20d735d09b483bd005John McCall A1_saved a1_saved; 252150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 253ad346f4f678ab1c3222425641d851dc63e9dfa1aJohn McCall void Emit(CodeGenFunction &CGF, Flags flags) { 254804b807ea918184d6de63bd745e1ff75a9bfc679John McCall A0 a0 = DominatingValue<A0>::restore(CGF, a0_saved); 255804b807ea918184d6de63bd745e1ff75a9bfc679John McCall A1 a1 = DominatingValue<A1>::restore(CGF, a1_saved); 256ad346f4f678ab1c3222425641d851dc63e9dfa1aJohn McCall T(a0, a1).Emit(CGF, flags); 257150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 258150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 259150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall public: 2603ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall ConditionalCleanup2(A0_saved a0, A1_saved a1) 2613ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall : a0_saved(a0), a1_saved(a1) {} 262150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall }; 263150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 264d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor template <class T, class A0, class A1, class A2> 265d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor class ConditionalCleanup3 : public Cleanup { 266d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor typedef typename DominatingValue<A0>::saved_type A0_saved; 267d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor typedef typename DominatingValue<A1>::saved_type A1_saved; 268d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor typedef typename DominatingValue<A2>::saved_type A2_saved; 269d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor A0_saved a0_saved; 270d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor A1_saved a1_saved; 271d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor A2_saved a2_saved; 272d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor 273ad346f4f678ab1c3222425641d851dc63e9dfa1aJohn McCall void Emit(CodeGenFunction &CGF, Flags flags) { 274d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor A0 a0 = DominatingValue<A0>::restore(CGF, a0_saved); 275d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor A1 a1 = DominatingValue<A1>::restore(CGF, a1_saved); 276d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor A2 a2 = DominatingValue<A2>::restore(CGF, a2_saved); 277ad346f4f678ab1c3222425641d851dc63e9dfa1aJohn McCall T(a0, a1, a2).Emit(CGF, flags); 278d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor } 279d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor 280d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor public: 281d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor ConditionalCleanup3(A0_saved a0, A1_saved a1, A2_saved a2) 282c4a1a8450a3613ef256a71b9d8305b41f79eef50John McCall : a0_saved(a0), a1_saved(a1), a2_saved(a2) {} 283d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor }; 284d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor 2859928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall template <class T, class A0, class A1, class A2, class A3> 2869928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall class ConditionalCleanup4 : public Cleanup { 2879928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall typedef typename DominatingValue<A0>::saved_type A0_saved; 2889928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall typedef typename DominatingValue<A1>::saved_type A1_saved; 2899928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall typedef typename DominatingValue<A2>::saved_type A2_saved; 2909928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall typedef typename DominatingValue<A3>::saved_type A3_saved; 2919928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall A0_saved a0_saved; 2929928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall A1_saved a1_saved; 2939928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall A2_saved a2_saved; 2949928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall A3_saved a3_saved; 2959928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall 296ad346f4f678ab1c3222425641d851dc63e9dfa1aJohn McCall void Emit(CodeGenFunction &CGF, Flags flags) { 2979928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall A0 a0 = DominatingValue<A0>::restore(CGF, a0_saved); 2989928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall A1 a1 = DominatingValue<A1>::restore(CGF, a1_saved); 2999928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall A2 a2 = DominatingValue<A2>::restore(CGF, a2_saved); 3009928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall A3 a3 = DominatingValue<A3>::restore(CGF, a3_saved); 301ad346f4f678ab1c3222425641d851dc63e9dfa1aJohn McCall T(a0, a1, a2, a3).Emit(CGF, flags); 3029928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall } 3039928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall 3049928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall public: 3059928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall ConditionalCleanup4(A0_saved a0, A1_saved a1, A2_saved a2, A3_saved a3) 3069928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall : a0_saved(a0), a1_saved(a1), a2_saved(a2), a3_saved(a3) {} 3079928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall }; 3089928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall 309f1549f66a8216a78112286e3978cea2c29d6334cJohn McCallprivate: 310f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall // The implementation for this class is in CGException.h and 311f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall // CGException.cpp; the definition is here because it's used as a 312f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall // member of CodeGenFunction. 313f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 314f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// The start of the scope-stack buffer, i.e. the allocated pointer 315f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// for the buffer. All of these pointers are either simultaneously 316f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// null or simultaneously valid. 317f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall char *StartOfBuffer; 318f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 319f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// The end of the buffer. 320f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall char *EndOfBuffer; 321f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 322f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// The first valid entry in the buffer. 323f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall char *StartOfData; 324f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 325f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// The innermost normal cleanup on the stack. 326f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall stable_iterator InnermostNormalCleanup; 327f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 328777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall /// The innermost EH scope on the stack. 329777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall stable_iterator InnermostEHScope; 330ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall 331f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// The current set of branch fixups. A branch fixup is a jump to 332f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// an as-yet unemitted label, i.e. a label for which we don't yet 333f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// know the EH stack depth. Whenever we pop a cleanup, we have 334f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// to thread all the current branch fixups through it. 335f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// 336f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Fixups are recorded as the Use of the respective branch or 337f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// switch statement. The use points to the final destination. 338f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// When popping out of a cleanup, these uses are threaded through 339f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// the cleanup and adjusted to point to the new cleanup. 340f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// 341f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Note that branches are allowed to jump into protected scopes 342f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// in certain situations; e.g. the following code is legal: 343f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// struct A { ~A(); }; // trivial ctor, non-trivial dtor 344f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// goto foo; 345f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// A a; 346f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// foo: 347f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// bar(); 348686775deca8b8685eb90801495880e3abdd844c2Chris Lattner SmallVector<BranchFixup, 8> BranchFixups; 349f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 350f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall char *allocate(size_t Size); 351f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 3521f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall void *pushCleanup(CleanupKind K, size_t DataSize); 353da65ea86482bc116906edfb9ba1d7124f76cc867John McCall 354f1549f66a8216a78112286e3978cea2c29d6334cJohn McCallpublic: 355f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall EHScopeStack() : StartOfBuffer(0), EndOfBuffer(0), StartOfData(0), 356f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall InnermostNormalCleanup(stable_end()), 357777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall InnermostEHScope(stable_end()) {} 358f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall ~EHScopeStack() { delete[] StartOfBuffer; } 359f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 360da65ea86482bc116906edfb9ba1d7124f76cc867John McCall // Variadic templates would make this not terrible. 361da65ea86482bc116906edfb9ba1d7124f76cc867John McCall 362da65ea86482bc116906edfb9ba1d7124f76cc867John McCall /// Push a lazily-created cleanup on the stack. 3638e3f86193995c47ee0d229e4336c3382410f09f5John McCall template <class T> 3641f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall void pushCleanup(CleanupKind Kind) { 3651f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall void *Buffer = pushCleanup(Kind, sizeof(T)); 3661f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall Cleanup *Obj = new(Buffer) T(); 3678e3f86193995c47ee0d229e4336c3382410f09f5John McCall (void) Obj; 3688e3f86193995c47ee0d229e4336c3382410f09f5John McCall } 3698e3f86193995c47ee0d229e4336c3382410f09f5John McCall 3708e3f86193995c47ee0d229e4336c3382410f09f5John McCall /// Push a lazily-created cleanup on the stack. 3718e3f86193995c47ee0d229e4336c3382410f09f5John McCall template <class T, class A0> 3721f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall void pushCleanup(CleanupKind Kind, A0 a0) { 3731f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall void *Buffer = pushCleanup(Kind, sizeof(T)); 3741f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall Cleanup *Obj = new(Buffer) T(a0); 3758e3f86193995c47ee0d229e4336c3382410f09f5John McCall (void) Obj; 3768e3f86193995c47ee0d229e4336c3382410f09f5John McCall } 3778e3f86193995c47ee0d229e4336c3382410f09f5John McCall 3788e3f86193995c47ee0d229e4336c3382410f09f5John McCall /// Push a lazily-created cleanup on the stack. 379da65ea86482bc116906edfb9ba1d7124f76cc867John McCall template <class T, class A0, class A1> 3801f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall void pushCleanup(CleanupKind Kind, A0 a0, A1 a1) { 3811f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall void *Buffer = pushCleanup(Kind, sizeof(T)); 3821f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall Cleanup *Obj = new(Buffer) T(a0, a1); 383da65ea86482bc116906edfb9ba1d7124f76cc867John McCall (void) Obj; 384da65ea86482bc116906edfb9ba1d7124f76cc867John McCall } 385da65ea86482bc116906edfb9ba1d7124f76cc867John McCall 386da65ea86482bc116906edfb9ba1d7124f76cc867John McCall /// Push a lazily-created cleanup on the stack. 387da65ea86482bc116906edfb9ba1d7124f76cc867John McCall template <class T, class A0, class A1, class A2> 3881f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall void pushCleanup(CleanupKind Kind, A0 a0, A1 a1, A2 a2) { 3891f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall void *Buffer = pushCleanup(Kind, sizeof(T)); 3901f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall Cleanup *Obj = new(Buffer) T(a0, a1, a2); 391da65ea86482bc116906edfb9ba1d7124f76cc867John McCall (void) Obj; 392da65ea86482bc116906edfb9ba1d7124f76cc867John McCall } 393da65ea86482bc116906edfb9ba1d7124f76cc867John McCall 394da65ea86482bc116906edfb9ba1d7124f76cc867John McCall /// Push a lazily-created cleanup on the stack. 395da65ea86482bc116906edfb9ba1d7124f76cc867John McCall template <class T, class A0, class A1, class A2, class A3> 3961f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall void pushCleanup(CleanupKind Kind, A0 a0, A1 a1, A2 a2, A3 a3) { 3971f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall void *Buffer = pushCleanup(Kind, sizeof(T)); 3981f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall Cleanup *Obj = new(Buffer) T(a0, a1, a2, a3); 399da65ea86482bc116906edfb9ba1d7124f76cc867John McCall (void) Obj; 400da65ea86482bc116906edfb9ba1d7124f76cc867John McCall } 401da65ea86482bc116906edfb9ba1d7124f76cc867John McCall 40277199713ab56f87ffad9a535ff2a0877704eed87John McCall /// Push a lazily-created cleanup on the stack. 40377199713ab56f87ffad9a535ff2a0877704eed87John McCall template <class T, class A0, class A1, class A2, class A3, class A4> 4041f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall void pushCleanup(CleanupKind Kind, A0 a0, A1 a1, A2 a2, A3 a3, A4 a4) { 4051f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall void *Buffer = pushCleanup(Kind, sizeof(T)); 4061f0fca54676cfa8616e7f3cd7a26788ab937e3cdJohn McCall Cleanup *Obj = new(Buffer) T(a0, a1, a2, a3, a4); 40777199713ab56f87ffad9a535ff2a0877704eed87John McCall (void) Obj; 40877199713ab56f87ffad9a535ff2a0877704eed87John McCall } 40977199713ab56f87ffad9a535ff2a0877704eed87John McCall 4107d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall // Feel free to add more variants of the following: 4117d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall 4127d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// Push a cleanup with non-constant storage requirements on the 4137d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// stack. The cleanup type must provide an additional static method: 4147d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// static size_t getExtraSize(size_t); 4157d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// The argument to this method will be the value N, which will also 4167d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// be passed as the first argument to the constructor. 4177d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// 4187d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// The data stored in the extra storage must obey the same 4197d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// restrictions as normal cleanup member data. 4207d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// 4217d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// The pointer returned from this method is valid until the cleanup 4227d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// stack is modified. 4237d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall template <class T, class A0, class A1, class A2> 4247d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall T *pushCleanupWithExtra(CleanupKind Kind, size_t N, A0 a0, A1 a1, A2 a2) { 4257d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall void *Buffer = pushCleanup(Kind, sizeof(T) + T::getExtraSize(N)); 4267d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall return new (Buffer) T(N, a0, a1, a2); 4277d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall } 4287d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall 429777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall /// Pops a cleanup scope off the stack. This is private to CGCleanup.cpp. 430f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall void popCleanup(); 431f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 432f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Push a set of catch handlers on the stack. The catch is 433f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// uninitialized and will need to have the given number of handlers 434f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// set on it. 435f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall class EHCatchScope *pushCatch(unsigned NumHandlers); 436f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 437777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall /// Pops a catch scope off the stack. This is private to CGException.cpp. 438f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall void popCatch(); 439f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 440f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Push an exceptions filter on the stack. 441f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall class EHFilterScope *pushFilter(unsigned NumFilters); 442f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 443f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Pops an exceptions filter off the stack. 444f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall void popFilter(); 445f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 446f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Push a terminate handler on the stack. 447f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall void pushTerminate(); 448f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 449f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Pops a terminate handler off the stack. 450f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall void popTerminate(); 451f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 452f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Determines whether the exception-scopes stack is empty. 453f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall bool empty() const { return StartOfData == EndOfBuffer; } 454f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 455f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall bool requiresLandingPad() const { 456777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall return InnermostEHScope != stable_end(); 457f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 458f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 459f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Determines whether there are any normal cleanups on the stack. 460f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall bool hasNormalCleanups() const { 461f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return InnermostNormalCleanup != stable_end(); 462f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 463f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 464f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Returns the innermost normal cleanup on the stack, or 465f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// stable_end() if there are no normal cleanups. 466f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall stable_iterator getInnermostNormalCleanup() const { 467f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return InnermostNormalCleanup; 468f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 469777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall stable_iterator getInnermostActiveNormalCleanup() const; 470f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 471777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall stable_iterator getInnermostEHScope() const { 472777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall return InnermostEHScope; 473f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 474f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 475777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall stable_iterator getInnermostActiveEHScope() const; 476f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 477f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// An unstable reference to a scope-stack depth. Invalidated by 478f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// pushes but not pops. 479f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall class iterator; 480f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 481f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Returns an iterator pointing to the innermost EH scope. 482f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall iterator begin() const; 483f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 484f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Returns an iterator pointing to the outermost EH scope. 485f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall iterator end() const; 486f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 487f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Create a stable reference to the top of the EH stack. The 488f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// returned reference is valid until that scope is popped off the 489f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// stack. 490f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall stable_iterator stable_begin() const { 491f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return stable_iterator(EndOfBuffer - StartOfData); 492f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 493f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 494f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Create a stable reference to the bottom of the EH stack. 495f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall static stable_iterator stable_end() { 496f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return stable_iterator(0); 497f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 498f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 499f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Translates an iterator into a stable_iterator. 500f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall stable_iterator stabilize(iterator it) const; 501f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 502f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Turn a stable reference to a scope depth into a unstable pointer 503f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// to the EH stack. 504f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall iterator find(stable_iterator save) const; 505f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 506f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Removes the cleanup pointed to by the given stable_iterator. 507f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall void removeCleanup(stable_iterator save); 508f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 509f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Add a branch fixup to the current cleanup scope. 510f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall BranchFixup &addBranchFixup() { 511f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall assert(hasNormalCleanups() && "adding fixup in scope without cleanups"); 512f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall BranchFixups.push_back(BranchFixup()); 513f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return BranchFixups.back(); 514f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 515f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 516f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall unsigned getNumBranchFixups() const { return BranchFixups.size(); } 517f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall BranchFixup &getBranchFixup(unsigned I) { 518f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall assert(I < getNumBranchFixups()); 519f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return BranchFixups[I]; 520f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 521f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 522ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall /// Pops lazily-removed fixups from the end of the list. This 523ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall /// should only be called by procedures which have just popped a 524ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall /// cleanup or resolved one or more fixups. 525ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall void popNullFixups(); 526ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall 527ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall /// Clears the branch-fixups list. This should only be called by 5288abdbd8118e37e759d1ce3f5814ee0a24b1589e8John McCall /// ResolveAllBranchFixups. 529ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall void clearFixups() { BranchFixups.clear(); } 530f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall}; 531f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 5325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// CodeGenFunction - This class organizes the per-function state that is used 5335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// while generating LLVM code. 5345936e33bf74dd6bf126ceee0f6169a2593d03a69John McCallclass CodeGenFunction : public CodeGenTypeCache { 535f56faa01936b9cf909623d7f06e3c2569ca4a78eDmitri Gribenko CodeGenFunction(const CodeGenFunction &) LLVM_DELETED_FUNCTION; 536f56faa01936b9cf909623d7f06e3c2569ca4a78eDmitri Gribenko void operator=(const CodeGenFunction &) LLVM_DELETED_FUNCTION; 5374c40d98ab7acf5f27fa89b17bd8fc0ef7683df37John McCall 5384c40d98ab7acf5f27fa89b17bd8fc0ef7683df37John McCall friend class CGCXXABI; 539bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattnerpublic: 540ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall /// A jump destination is an abstract label, branching to which may 541ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall /// require a jump out through normal cleanups. 542f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall struct JumpDest { 543ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall JumpDest() : Block(0), ScopeDepth(), Index(0) {} 544ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall JumpDest(llvm::BasicBlock *Block, 545ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall EHScopeStack::stable_iterator Depth, 546ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall unsigned Index) 547ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall : Block(Block), ScopeDepth(Depth), Index(Index) {} 548ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall 549ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall bool isValid() const { return Block != 0; } 550ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall llvm::BasicBlock *getBlock() const { return Block; } 551ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall EHScopeStack::stable_iterator getScopeDepth() const { return ScopeDepth; } 552ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall unsigned getDestIndex() const { return Index; } 5539cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 554ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall private: 555f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *Block; 556f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall EHScopeStack::stable_iterator ScopeDepth; 557ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall unsigned Index; 558ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall }; 559ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall 5605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CodeGenModule &CGM; // Per-module state. 561444be7366d0a1e172c0290a1ea54c1cb16b5947cDaniel Dunbar const TargetInfo &Target; 5620dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 56358dee10ed2eee34035f62d1c2d32b3639e9182f8Chris Lattner typedef std::pair<llvm::Value *, llvm::Value *> ComplexPairTy; 56445d196b8387dcefc4df26cda114fa34c6528e928Daniel Dunbar CGBuilderTy Builder; 5650dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 566b5437d238752dc297e42410e98d38d5250fe0463Chris Lattner /// CurFuncDecl - Holds the Decl for the current function or ObjC method. 567b5437d238752dc297e42410e98d38d5250fe0463Chris Lattner /// This excludes BlockDecls. 5684111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner const Decl *CurFuncDecl; 569b5437d238752dc297e42410e98d38d5250fe0463Chris Lattner /// CurCodeDecl - This is the inner-most code context, which includes blocks. 570b5437d238752dc297e42410e98d38d5250fe0463Chris Lattner const Decl *CurCodeDecl; 57188b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar const CGFunctionInfo *CurFnInfo; 572391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner QualType FnRetTy; 5735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::Function *CurFn; 5745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5756a1e0eb557d47e85185e09bdf8721f53f4bf9c9cMike Stump /// CurGD - The GlobalDecl for the current function being compiled. 5766a1e0eb557d47e85185e09bdf8721f53f4bf9c9cMike Stump GlobalDecl CurGD; 5776a1e0eb557d47e85185e09bdf8721f53f4bf9c9cMike Stump 578f85e193739c953358c865005855253af4f68a497John McCall /// PrologueCleanupDepth - The cleanup depth enclosing all the 579f85e193739c953358c865005855253af4f68a497John McCall /// cleanups associated with the parameters. 580f85e193739c953358c865005855253af4f68a497John McCall EHScopeStack::stable_iterator PrologueCleanupDepth; 581f85e193739c953358c865005855253af4f68a497John McCall 5825ca2084cf9b529563209429857f01fdae9dcdfa5Daniel Dunbar /// ReturnBlock - Unified return block. 583f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall JumpDest ReturnBlock; 584f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 5850dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// ReturnValue - The temporary alloca to hold the return value. This is null 586f3477c13eeaf11b32a41f181398fb5deffd0dd73Sylvestre Ledru /// iff the function has no return value. 587b17daf9ab790ae71aacad2cc4aa11cd8d86c25d1Eli Friedman llvm::Value *ReturnValue; 5880dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 5895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// AllocaInsertPoint - This is an instruction in the entry block before which 5905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// we prefer to insert allocas. 591481769b5dc102b0256b35581e787909ad5edfab5Chris Lattner llvm::AssertingVH<llvm::Instruction> AllocaInsertPt; 5920ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar 593b3198a841e7f356f171f1e11faff014b2deb1eb8Nuno Lopes /// BoundsChecking - Emit run-time bounds checks. Higher values mean 594b3198a841e7f356f171f1e11faff014b2deb1eb8Nuno Lopes /// potentially higher performance penalties. 595b3198a841e7f356f171f1e11faff014b2deb1eb8Nuno Lopes unsigned char BoundsChecking; 596b3198a841e7f356f171f1e11faff014b2deb1eb8Nuno Lopes 597d6396a681c9acbe56bc41bbc2bed2db45755bcd7Richard Smith /// \brief Whether any type-checking sanitizers are enabled. If \c false, 598d6396a681c9acbe56bc41bbc2bed2db45755bcd7Richard Smith /// calls to EmitTypeCheck can be skipped. 599d6396a681c9acbe56bc41bbc2bed2db45755bcd7Richard Smith bool SanitizePerformTypeCheck; 6009cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 601f85e193739c953358c865005855253af4f68a497John McCall /// In ARC, whether we should autorelease the return value. 602f85e193739c953358c865005855253af4f68a497John McCall bool AutoreleaseResult; 603f85e193739c953358c865005855253af4f68a497John McCall 604d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall const CodeGen::CGBlockInfo *BlockInfo; 605d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall llvm::Value *BlockPointer; 606d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall 607cec5ebd4a6a89a7023d04cec728fd340b541ed61Eli Friedman llvm::DenseMap<const VarDecl *, FieldDecl *> LambdaCaptureFields; 608cec5ebd4a6a89a7023d04cec728fd340b541ed61Eli Friedman FieldDecl *LambdaThisCaptureField; 609cec5ebd4a6a89a7023d04cec728fd340b541ed61Eli Friedman 6103d91bbcdab155181556969cad6ec97014405acedDouglas Gregor /// \brief A mapping from NRVO variables to the flags used to indicate 6113d91bbcdab155181556969cad6ec97014405acedDouglas Gregor /// when the NRVO has been applied to this variable. 6123d91bbcdab155181556969cad6ec97014405acedDouglas Gregor llvm::DenseMap<const VarDecl *, llvm::Value *> NRVOFlags; 6139cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 614f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall EHScopeStack EHStack; 6150dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 616ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall /// i32s containing the indexes of the cleanup destinations. 617ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall llvm::AllocaInst *NormalCleanupDest; 618ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall 619ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall unsigned NextCleanupDestIndex; 620ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall 6211a343ebbf413e8eae6b2737b2b2d79cbf5765571John McCall /// FirstBlockInfo - The head of a singly-linked-list of block layouts. 6221a343ebbf413e8eae6b2737b2b2d79cbf5765571John McCall CGBlockInfo *FirstBlockInfo; 6231a343ebbf413e8eae6b2737b2b2d79cbf5765571John McCall 624777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall /// EHResumeBlock - Unified block containing a call to llvm.eh.resume. 625777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall llvm::BasicBlock *EHResumeBlock; 626777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall 627285cfd8953d4ca4da613a47a0d691f7234068f8cBill Wendling /// The exception slot. All landing pads write the current exception pointer 628285cfd8953d4ca4da613a47a0d691f7234068f8cBill Wendling /// into this alloca. 629f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::Value *ExceptionSlot; 6300dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 631285cfd8953d4ca4da613a47a0d691f7234068f8cBill Wendling /// The selector slot. Under the MandatoryCleanup model, all landing pads 632285cfd8953d4ca4da613a47a0d691f7234068f8cBill Wendling /// write the current selector value into this alloca. 63393c332a8ba2c193c435b293966d343dab15f555bJohn McCall llvm::AllocaInst *EHSelectorSlot; 63493c332a8ba2c193c435b293966d343dab15f555bJohn McCall 635f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// Emits a landing pad for the current EH stack. 636f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *EmitLandingPad(); 6370dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 638f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *getInvokeDestImpl(); 63999533834ba8f3658559f334e68a518ebb6388ceaMike Stump 640150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall template <class T> 641804b807ea918184d6de63bd745e1ff75a9bfc679John McCall typename DominatingValue<T>::saved_type saveValueInCond(T value) { 642804b807ea918184d6de63bd745e1ff75a9bfc679John McCall return DominatingValue<T>::save(*this, value); 643150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 644150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 645f1549f66a8216a78112286e3978cea2c29d6334cJohn McCallpublic: 646f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// ObjCEHValueStack - Stack of Objective-C exception values, used for 647f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// rethrows. 648686775deca8b8685eb90801495880e3abdd844c2Chris Lattner SmallVector<llvm::Value*, 8> ObjCEHValueStack; 649bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson 650d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall /// A class controlling the emission of a finally block. 651d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall class FinallyInfo { 652d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall /// Where the catchall's edge through the cleanup should go. 653d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall JumpDest RethrowDest; 654d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall 655d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall /// A function to call to enter the catch. 656d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall llvm::Constant *BeginCatchFn; 657d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall 658d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall /// An i1 variable indicating whether or not the @finally is 659d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall /// running for an exception. 660d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall llvm::AllocaInst *ForEHVar; 661d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump 662d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall /// An i8* variable into which the exception pointer to rethrow 663d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall /// has been saved. 664d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall llvm::AllocaInst *SavedExnVar; 665d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall 666d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall public: 667d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall void enter(CodeGenFunction &CGF, const Stmt *Finally, 668d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall llvm::Constant *beginCatchFn, llvm::Constant *endCatchFn, 669d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall llvm::Constant *rethrowFn); 670d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall void exit(CodeGenFunction &CGF); 671d768e9d29abe1ac1ccc3ed63f2dce835d9bab342John McCall }; 672f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 673150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// pushFullExprCleanup - Push a cleanup to be run at the end of the 674150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// current full-expression. Safe against the possibility that 675150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// we're currently inside a conditionally-evaluated expression. 6763ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall template <class T, class A0> 6773ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall void pushFullExprCleanup(CleanupKind kind, A0 a0) { 6783ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall // If we're not in a conditional branch, or if none of the 6793ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall // arguments requires saving, then use the unconditional cleanup. 680c4a1a8450a3613ef256a71b9d8305b41f79eef50John McCall if (!isInConditionalBranch()) 681c4a1a8450a3613ef256a71b9d8305b41f79eef50John McCall return EHStack.pushCleanup<T>(kind, a0); 6823ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall 683804b807ea918184d6de63bd745e1ff75a9bfc679John McCall typename DominatingValue<A0>::saved_type a0_saved = saveValueInCond(a0); 6843ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall 6853ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall typedef EHScopeStack::ConditionalCleanup1<T, A0> CleanupType; 6863ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall EHStack.pushCleanup<CleanupType>(kind, a0_saved); 6873ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall initFullExprCleanup(); 6883ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall } 6893ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall 6903ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall /// pushFullExprCleanup - Push a cleanup to be run at the end of the 6913ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall /// current full-expression. Safe against the possibility that 6923ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall /// we're currently inside a conditionally-evaluated expression. 693150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall template <class T, class A0, class A1> 694150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall void pushFullExprCleanup(CleanupKind kind, A0 a0, A1 a1) { 695150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall // If we're not in a conditional branch, or if none of the 696150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall // arguments requires saving, then use the unconditional cleanup. 697c4a1a8450a3613ef256a71b9d8305b41f79eef50John McCall if (!isInConditionalBranch()) 698c4a1a8450a3613ef256a71b9d8305b41f79eef50John McCall return EHStack.pushCleanup<T>(kind, a0, a1); 699150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 700804b807ea918184d6de63bd745e1ff75a9bfc679John McCall typename DominatingValue<A0>::saved_type a0_saved = saveValueInCond(a0); 701804b807ea918184d6de63bd745e1ff75a9bfc679John McCall typename DominatingValue<A1>::saved_type a1_saved = saveValueInCond(a1); 702150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 703150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall typedef EHScopeStack::ConditionalCleanup2<T, A0, A1> CleanupType; 7043ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall EHStack.pushCleanup<CleanupType>(kind, a0_saved, a1_saved); 7053ad32c8d93eb65d1d4943d7df567fc9b4f55d137John McCall initFullExprCleanup(); 706150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 707150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 708d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor /// pushFullExprCleanup - Push a cleanup to be run at the end of the 709d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor /// current full-expression. Safe against the possibility that 710d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor /// we're currently inside a conditionally-evaluated expression. 711d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor template <class T, class A0, class A1, class A2> 712d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor void pushFullExprCleanup(CleanupKind kind, A0 a0, A1 a1, A2 a2) { 713d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor // If we're not in a conditional branch, or if none of the 714d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor // arguments requires saving, then use the unconditional cleanup. 715d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor if (!isInConditionalBranch()) { 716c4a1a8450a3613ef256a71b9d8305b41f79eef50John McCall return EHStack.pushCleanup<T>(kind, a0, a1, a2); 717d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor } 718d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor 719d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor typename DominatingValue<A0>::saved_type a0_saved = saveValueInCond(a0); 720d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor typename DominatingValue<A1>::saved_type a1_saved = saveValueInCond(a1); 721d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor typename DominatingValue<A2>::saved_type a2_saved = saveValueInCond(a2); 722d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor 723d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor typedef EHScopeStack::ConditionalCleanup3<T, A0, A1, A2> CleanupType; 724d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor EHStack.pushCleanup<CleanupType>(kind, a0_saved, a1_saved, a2_saved); 725d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor initFullExprCleanup(); 726d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor } 727d7b23167763f43d3e76b0de26141b1e52613ee3cDouglas Gregor 7289928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall /// pushFullExprCleanup - Push a cleanup to be run at the end of the 7299928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall /// current full-expression. Safe against the possibility that 7309928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall /// we're currently inside a conditionally-evaluated expression. 7319928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall template <class T, class A0, class A1, class A2, class A3> 7329928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall void pushFullExprCleanup(CleanupKind kind, A0 a0, A1 a1, A2 a2, A3 a3) { 7339928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall // If we're not in a conditional branch, or if none of the 7349928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall // arguments requires saving, then use the unconditional cleanup. 7359928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall if (!isInConditionalBranch()) { 7369928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall return EHStack.pushCleanup<T>(kind, a0, a1, a2, a3); 7379928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall } 7389928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall 7399928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall typename DominatingValue<A0>::saved_type a0_saved = saveValueInCond(a0); 7409928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall typename DominatingValue<A1>::saved_type a1_saved = saveValueInCond(a1); 7419928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall typename DominatingValue<A2>::saved_type a2_saved = saveValueInCond(a2); 7429928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall typename DominatingValue<A3>::saved_type a3_saved = saveValueInCond(a3); 7439928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall 7449928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall typedef EHScopeStack::ConditionalCleanup4<T, A0, A1, A2, A3> CleanupType; 7459928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall EHStack.pushCleanup<CleanupType>(kind, a0_saved, a1_saved, 7469928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall a2_saved, a3_saved); 7479928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall initFullExprCleanup(); 7489928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall } 7499928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall 7506f103ba42cb69d50005a977c5ea583984ab63fc4John McCall /// Set up the last cleaup that was pushed as a conditional 7516f103ba42cb69d50005a977c5ea583984ab63fc4John McCall /// full-expression cleanup. 7526f103ba42cb69d50005a977c5ea583984ab63fc4John McCall void initFullExprCleanup(); 7536f103ba42cb69d50005a977c5ea583984ab63fc4John McCall 754f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// PushDestructorCleanup - Push a cleanup to call the 755f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// complete-object destructor of an object of the given type at the 756f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// given address. Does nothing if T is not a C++ class type with a 757f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// non-trivial destructor. 758f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall void PushDestructorCleanup(QualType T, llvm::Value *Addr); 759f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 76081407d404a3fc8d24d0e2a052d85cae183033e2bJohn McCall /// PushDestructorCleanup - Push a cleanup to call the 76181407d404a3fc8d24d0e2a052d85cae183033e2bJohn McCall /// complete-object variant of the given destructor on the object at 76281407d404a3fc8d24d0e2a052d85cae183033e2bJohn McCall /// the given address. 76381407d404a3fc8d24d0e2a052d85cae183033e2bJohn McCall void PushDestructorCleanup(const CXXDestructorDecl *Dtor, 76481407d404a3fc8d24d0e2a052d85cae183033e2bJohn McCall llvm::Value *Addr); 76581407d404a3fc8d24d0e2a052d85cae183033e2bJohn McCall 766f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// PopCleanupBlock - Will pop the cleanup entry on the stack and 767f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// process all branch fixups. 768ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall void PopCleanupBlock(bool FallThroughIsBranchThrough = false); 769f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 7707d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// DeactivateCleanupBlock - Deactivates the given cleanup block. 7717d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// The block cannot be reactivated. Pops it if it's the top of the 7727d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// stack. 7736f103ba42cb69d50005a977c5ea583984ab63fc4John McCall /// 7746f103ba42cb69d50005a977c5ea583984ab63fc4John McCall /// \param DominatingIP - An instruction which is known to 7756f103ba42cb69d50005a977c5ea583984ab63fc4John McCall /// dominate the current IP (if set) and which lies along 7766f103ba42cb69d50005a977c5ea583984ab63fc4John McCall /// all paths of execution between the current IP and the 7776f103ba42cb69d50005a977c5ea583984ab63fc4John McCall /// the point at which the cleanup comes into scope. 7786f103ba42cb69d50005a977c5ea583984ab63fc4John McCall void DeactivateCleanupBlock(EHScopeStack::stable_iterator Cleanup, 7796f103ba42cb69d50005a977c5ea583984ab63fc4John McCall llvm::Instruction *DominatingIP); 7807d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall 7817d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// ActivateCleanupBlock - Activates an initially-inactive cleanup. 7827d8647f194ae4f2499e5bcd40dcfea34cd21ebc6John McCall /// Cannot be used to resurrect a deactivated cleanup. 7836f103ba42cb69d50005a977c5ea583984ab63fc4John McCall /// 7846f103ba42cb69d50005a977c5ea583984ab63fc4John McCall /// \param DominatingIP - An instruction which is known to 7856f103ba42cb69d50005a977c5ea583984ab63fc4John McCall /// dominate the current IP (if set) and which lies along 7866f103ba42cb69d50005a977c5ea583984ab63fc4John McCall /// all paths of execution between the current IP and the 7876f103ba42cb69d50005a977c5ea583984ab63fc4John McCall /// the point at which the cleanup comes into scope. 7886f103ba42cb69d50005a977c5ea583984ab63fc4John McCall void ActivateCleanupBlock(EHScopeStack::stable_iterator Cleanup, 7896f103ba42cb69d50005a977c5ea583984ab63fc4John McCall llvm::Instruction *DominatingIP); 790cd2d2b7814e0104ed41a8da159a06a8ca77b70d8John McCall 791f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// \brief Enters a new scope for capturing cleanups, all of which 792f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// will be executed once the scope is exited. 793f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall class RunCleanupsScope { 794f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall EHScopeStack::stable_iterator CleanupStackDepth; 79501234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor bool OldDidCallStackSave; 7965656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor bool PerformCleanup; 79701234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor 798f56faa01936b9cf909623d7f06e3c2569ca4a78eDmitri Gribenko RunCleanupsScope(const RunCleanupsScope &) LLVM_DELETED_FUNCTION; 799f56faa01936b9cf909623d7f06e3c2569ca4a78eDmitri Gribenko void operator=(const RunCleanupsScope &) LLVM_DELETED_FUNCTION; 80001234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor 801c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher protected: 802c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher CodeGenFunction& CGF; 803c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher 80401234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor public: 80501234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor /// \brief Enter a new cleanup scope. 8069cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer explicit RunCleanupsScope(CodeGenFunction &CGF) 807c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher : PerformCleanup(true), CGF(CGF) 8085656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor { 809f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall CleanupStackDepth = CGF.EHStack.stable_begin(); 81001234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor OldDidCallStackSave = CGF.DidCallStackSave; 8114ada2ca7d82dab68d3646f3eb6dcdfee072e8ea4Argyrios Kyrtzidis CGF.DidCallStackSave = false; 81201234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor } 81301234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor 81401234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor /// \brief Exit this cleanup scope, emitting any accumulated 81501234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor /// cleanups. 816f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall ~RunCleanupsScope() { 8175656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor if (PerformCleanup) { 8185656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor CGF.DidCallStackSave = OldDidCallStackSave; 819f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall CGF.PopCleanupBlocks(CleanupStackDepth); 8205656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor } 8215656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor } 8225656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor 8235656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor /// \brief Determine whether this scope requires any cleanups. 8245656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor bool requiresCleanups() const { 825f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return CGF.EHStack.stable_begin() != CleanupStackDepth; 8265656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor } 8275656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor 8285656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor /// \brief Force the emission of cleanups now, instead of waiting 8295656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor /// until this object is destroyed. 8305656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor void ForceCleanup() { 8315656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor assert(PerformCleanup && "Already forced cleanup"); 83201234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor CGF.DidCallStackSave = OldDidCallStackSave; 833f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall CGF.PopCleanupBlocks(CleanupStackDepth); 8345656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor PerformCleanup = false; 83501234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor } 83601234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor }; 83701234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor 838c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher class LexicalScope: protected RunCleanupsScope { 839c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher SourceRange Range; 840c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher bool PopDebugStack; 841c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher 842f56faa01936b9cf909623d7f06e3c2569ca4a78eDmitri Gribenko LexicalScope(const LexicalScope &) LLVM_DELETED_FUNCTION; 843f56faa01936b9cf909623d7f06e3c2569ca4a78eDmitri Gribenko void operator=(const LexicalScope &) LLVM_DELETED_FUNCTION; 844c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher 845c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher public: 846c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher /// \brief Enter a new cleanup scope. 847c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher explicit LexicalScope(CodeGenFunction &CGF, SourceRange Range) 848c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher : RunCleanupsScope(CGF), Range(Range), PopDebugStack(true) { 849c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher if (CGDebugInfo *DI = CGF.getDebugInfo()) 850c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher DI->EmitLexicalBlockStart(CGF.Builder, Range.getBegin()); 851c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher } 852c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher 853c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher /// \brief Exit this cleanup scope, emitting any accumulated 854c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher /// cleanups. 855c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher ~LexicalScope() { 856c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher if (PopDebugStack) { 857c852e9ff06f7089405265c53af33cf06fdc36e52Eric Christopher CGDebugInfo *DI = CGF.getDebugInfo(); 858c852e9ff06f7089405265c53af33cf06fdc36e52Eric Christopher if (DI) DI->EmitLexicalBlockEnd(CGF.Builder, Range.getEnd()); 859c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher } 860c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher } 861c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher 862c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher /// \brief Force the emission of cleanups now, instead of waiting 863c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher /// until this object is destroyed. 864c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher void ForceCleanup() { 865c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher RunCleanupsScope::ForceCleanup(); 866c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher if (CGDebugInfo *DI = CGF.getDebugInfo()) { 867c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher DI->EmitLexicalBlockEnd(CGF.Builder, Range.getEnd()); 868c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher PopDebugStack = false; 869c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher } 870c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher } 871c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher }; 872c3287793626a778178a4dbadcc7b64e392c6e26fEric Christopher 87344ec82b4a1597802f5bf17721481b8c265bc8dc5Anders Carlsson 874f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// PopCleanupBlocks - Takes the old cleanup stack size and emits 875f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// the cleanup blocks that have been added. 876f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall void PopCleanupBlocks(EHScopeStack::stable_iterator OldCleanupStackSize); 87744ec82b4a1597802f5bf17721481b8c265bc8dc5Anders Carlsson 878ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall void ResolveBranchFixups(llvm::BasicBlock *Target); 879ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall 880f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// The given basic block lies in the current EH scope, but may be a 881f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// target of a potentially scope-crossing jump; get a stable handle 882f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// to which we can perform this jump later. 883ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall JumpDest getJumpDestInCurrentScope(llvm::BasicBlock *Target) { 884413e67778d593215d2f2161a4e712c8568f1ddd0John McCall return JumpDest(Target, 885413e67778d593215d2f2161a4e712c8568f1ddd0John McCall EHStack.getInnermostNormalCleanup(), 886413e67778d593215d2f2161a4e712c8568f1ddd0John McCall NextCleanupDestIndex++); 887f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 888c71c845fe77ee1f891d60232ec320912d88557eeAnders Carlsson 889f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// The given basic block lies in the current EH scope, but may be a 890f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// target of a potentially scope-crossing jump; get a stable handle 891f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// to which we can perform this jump later. 892686775deca8b8685eb90801495880e3abdd844c2Chris Lattner JumpDest getJumpDestInCurrentScope(StringRef Name = StringRef()) { 893ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall return getJumpDestInCurrentScope(createBasicBlock(Name)); 894f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 895f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 896f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// EmitBranchThroughCleanup - Emit a branch from the current insert 897f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// block through the normal cleanup handling code (if any) and then 898f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// on to \arg Dest. 899f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall void EmitBranchThroughCleanup(JumpDest Dest); 900b11f9198111796ada02b57f62cdea92134fde9f7Chris Lattner 901b11f9198111796ada02b57f62cdea92134fde9f7Chris Lattner /// isObviouslyBranchWithoutCleanups - Return true if a branch to the 902b11f9198111796ada02b57f62cdea92134fde9f7Chris Lattner /// specified destination obviously has no cleanups to run. 'false' is always 903b11f9198111796ada02b57f62cdea92134fde9f7Chris Lattner /// a conservatively correct answer for this method. 904b11f9198111796ada02b57f62cdea92134fde9f7Chris Lattner bool isObviouslyBranchWithoutCleanups(JumpDest Dest) const; 905f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 906777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall /// popCatchScope - Pops the catch scope at the top of the EHScope 907777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall /// stack, emitting any required code (other than the catch handlers 908777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall /// themselves). 909777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall void popCatchScope(); 910ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall 911c686004145b1f4dbeb38173a0886ba7040ae0089David Chisnall llvm::BasicBlock *getEHResumeBlock(bool isCleanup); 912777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall llvm::BasicBlock *getEHDispatchBlock(EHScopeStack::stable_iterator scope); 9130dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 914150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// An object to manage conditionally-evaluated expressions. 915150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall class ConditionalEvaluation { 916150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall llvm::BasicBlock *StartBB; 9171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 918150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall public: 919150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall ConditionalEvaluation(CodeGenFunction &CGF) 920150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall : StartBB(CGF.Builder.GetInsertBlock()) {} 9219cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 922150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall void begin(CodeGenFunction &CGF) { 923150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall assert(CGF.OutermostConditional != this); 924150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall if (!CGF.OutermostConditional) 925150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall CGF.OutermostConditional = this; 926150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 927150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 928150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall void end(CodeGenFunction &CGF) { 929150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall assert(CGF.OutermostConditional != 0); 930150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall if (CGF.OutermostConditional == this) 931150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall CGF.OutermostConditional = 0; 932150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 933150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 934150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// Returns a block which will be executed prior to each 935150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// evaluation of the conditional code. 936150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall llvm::BasicBlock *getStartingBlock() const { 937150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall return StartBB; 938150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 939150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall }; 9401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 9413019c444c672938c57f5573840071ecd73425ee7John McCall /// isInConditionalBranch - Return true if we're currently emitting 9423019c444c672938c57f5573840071ecd73425ee7John McCall /// one branch or the other of a conditional expression. 943150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall bool isInConditionalBranch() const { return OutermostConditional != 0; } 944150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 9456f103ba42cb69d50005a977c5ea583984ab63fc4John McCall void setBeforeOutermostConditional(llvm::Value *value, llvm::Value *addr) { 9466f103ba42cb69d50005a977c5ea583984ab63fc4John McCall assert(isInConditionalBranch()); 9476f103ba42cb69d50005a977c5ea583984ab63fc4John McCall llvm::BasicBlock *block = OutermostConditional->getStartingBlock(); 9486f103ba42cb69d50005a977c5ea583984ab63fc4John McCall new llvm::StoreInst(value, addr, &block->back()); 9496f103ba42cb69d50005a977c5ea583984ab63fc4John McCall } 9506f103ba42cb69d50005a977c5ea583984ab63fc4John McCall 951150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// An RAII object to record that we're evaluating a statement 952150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// expression. 953150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall class StmtExprEvaluation { 954150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall CodeGenFunction &CGF; 955150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 956150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// We have to save the outermost conditional: cleanups in a 957150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// statement expression aren't conditional just because the 958150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// StmtExpr is. 959150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall ConditionalEvaluation *SavedOutermostConditional; 960150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 961150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall public: 962150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall StmtExprEvaluation(CodeGenFunction &CGF) 963150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall : CGF(CGF), SavedOutermostConditional(CGF.OutermostConditional) { 964150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall CGF.OutermostConditional = 0; 965150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 966150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 967150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall ~StmtExprEvaluation() { 968150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall CGF.OutermostConditional = SavedOutermostConditional; 969150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall CGF.EnsureInsertPoint(); 970150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 971150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall }; 972e996ffd240f20a1048179d7727a6ee3227261921John McCall 97356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// An object which temporarily prevents a value from being 97456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// destroyed by aggressive peephole optimizations that assume that 97556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// all uses of a value have been realized in the IR. 97656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall class PeepholeProtection { 97756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall llvm::Instruction *Inst; 97856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall friend class CodeGenFunction; 97956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 98056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall public: 98156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall PeepholeProtection() : Inst(0) {} 9824b9c2d235fb9449e249d74f48ecfec601650de93John McCall }; 98356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 9844b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// A non-RAII class containing all the information about a bound 9854b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// opaque value. OpaqueValueMapping, below, is a RAII wrapper for 9864b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// this which makes individual mappings very simple; using this 9874b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// class directly is useful when you have a variable number of 9884b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// opaque values or don't want the RAII functionality for some 9894b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// reason. 9904b9c2d235fb9449e249d74f48ecfec601650de93John McCall class OpaqueValueMappingData { 991e996ffd240f20a1048179d7727a6ee3227261921John McCall const OpaqueValueExpr *OpaqueValue; 99256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall bool BoundLValue; 99356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall CodeGenFunction::PeepholeProtection Protection; 994e996ffd240f20a1048179d7727a6ee3227261921John McCall 9954b9c2d235fb9449e249d74f48ecfec601650de93John McCall OpaqueValueMappingData(const OpaqueValueExpr *ov, 9964b9c2d235fb9449e249d74f48ecfec601650de93John McCall bool boundLValue) 9974b9c2d235fb9449e249d74f48ecfec601650de93John McCall : OpaqueValue(ov), BoundLValue(boundLValue) {} 998e996ffd240f20a1048179d7727a6ee3227261921John McCall public: 9994b9c2d235fb9449e249d74f48ecfec601650de93John McCall OpaqueValueMappingData() : OpaqueValue(0) {} 10004b9c2d235fb9449e249d74f48ecfec601650de93John McCall 100156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall static bool shouldBindAsLValue(const Expr *expr) { 1002a5493f885095bd63d525a7035ad1c224de3ae5f2John McCall // gl-values should be bound as l-values for obvious reasons. 1003a5493f885095bd63d525a7035ad1c224de3ae5f2John McCall // Records should be bound as l-values because IR generation 1004a5493f885095bd63d525a7035ad1c224de3ae5f2John McCall // always keeps them in memory. Expressions of function type 1005a5493f885095bd63d525a7035ad1c224de3ae5f2John McCall // act exactly like l-values but are formally required to be 1006a5493f885095bd63d525a7035ad1c224de3ae5f2John McCall // r-values in C. 1007a5493f885095bd63d525a7035ad1c224de3ae5f2John McCall return expr->isGLValue() || 1008a5493f885095bd63d525a7035ad1c224de3ae5f2John McCall expr->getType()->isRecordType() || 1009a5493f885095bd63d525a7035ad1c224de3ae5f2John McCall expr->getType()->isFunctionType(); 101056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 101156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 10124b9c2d235fb9449e249d74f48ecfec601650de93John McCall static OpaqueValueMappingData bind(CodeGenFunction &CGF, 10134b9c2d235fb9449e249d74f48ecfec601650de93John McCall const OpaqueValueExpr *ov, 10144b9c2d235fb9449e249d74f48ecfec601650de93John McCall const Expr *e) { 10154b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (shouldBindAsLValue(ov)) 10164b9c2d235fb9449e249d74f48ecfec601650de93John McCall return bind(CGF, ov, CGF.EmitLValue(e)); 10174b9c2d235fb9449e249d74f48ecfec601650de93John McCall return bind(CGF, ov, CGF.EmitAnyExpr(e)); 10184b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 10194b9c2d235fb9449e249d74f48ecfec601650de93John McCall 10204b9c2d235fb9449e249d74f48ecfec601650de93John McCall static OpaqueValueMappingData bind(CodeGenFunction &CGF, 10214b9c2d235fb9449e249d74f48ecfec601650de93John McCall const OpaqueValueExpr *ov, 10224b9c2d235fb9449e249d74f48ecfec601650de93John McCall const LValue &lv) { 10234b9c2d235fb9449e249d74f48ecfec601650de93John McCall assert(shouldBindAsLValue(ov)); 10244b9c2d235fb9449e249d74f48ecfec601650de93John McCall CGF.OpaqueLValues.insert(std::make_pair(ov, lv)); 10254b9c2d235fb9449e249d74f48ecfec601650de93John McCall return OpaqueValueMappingData(ov, true); 10264b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 10274b9c2d235fb9449e249d74f48ecfec601650de93John McCall 10284b9c2d235fb9449e249d74f48ecfec601650de93John McCall static OpaqueValueMappingData bind(CodeGenFunction &CGF, 10294b9c2d235fb9449e249d74f48ecfec601650de93John McCall const OpaqueValueExpr *ov, 10304b9c2d235fb9449e249d74f48ecfec601650de93John McCall const RValue &rv) { 10314b9c2d235fb9449e249d74f48ecfec601650de93John McCall assert(!shouldBindAsLValue(ov)); 10324b9c2d235fb9449e249d74f48ecfec601650de93John McCall CGF.OpaqueRValues.insert(std::make_pair(ov, rv)); 10334b9c2d235fb9449e249d74f48ecfec601650de93John McCall 10344b9c2d235fb9449e249d74f48ecfec601650de93John McCall OpaqueValueMappingData data(ov, false); 10354b9c2d235fb9449e249d74f48ecfec601650de93John McCall 10364b9c2d235fb9449e249d74f48ecfec601650de93John McCall // Work around an extremely aggressive peephole optimization in 10374b9c2d235fb9449e249d74f48ecfec601650de93John McCall // EmitScalarConversion which assumes that all other uses of a 10384b9c2d235fb9449e249d74f48ecfec601650de93John McCall // value are extant. 10394b9c2d235fb9449e249d74f48ecfec601650de93John McCall data.Protection = CGF.protectFromPeepholes(rv); 10404b9c2d235fb9449e249d74f48ecfec601650de93John McCall 10414b9c2d235fb9449e249d74f48ecfec601650de93John McCall return data; 10424b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 10434b9c2d235fb9449e249d74f48ecfec601650de93John McCall 10444b9c2d235fb9449e249d74f48ecfec601650de93John McCall bool isValid() const { return OpaqueValue != 0; } 10454b9c2d235fb9449e249d74f48ecfec601650de93John McCall void clear() { OpaqueValue = 0; } 10464b9c2d235fb9449e249d74f48ecfec601650de93John McCall 10474b9c2d235fb9449e249d74f48ecfec601650de93John McCall void unbind(CodeGenFunction &CGF) { 10484b9c2d235fb9449e249d74f48ecfec601650de93John McCall assert(OpaqueValue && "no data to unbind!"); 10494b9c2d235fb9449e249d74f48ecfec601650de93John McCall 10504b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (BoundLValue) { 10514b9c2d235fb9449e249d74f48ecfec601650de93John McCall CGF.OpaqueLValues.erase(OpaqueValue); 10524b9c2d235fb9449e249d74f48ecfec601650de93John McCall } else { 10534b9c2d235fb9449e249d74f48ecfec601650de93John McCall CGF.OpaqueRValues.erase(OpaqueValue); 10544b9c2d235fb9449e249d74f48ecfec601650de93John McCall CGF.unprotectFromPeepholes(Protection); 10554b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 10564b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 10574b9c2d235fb9449e249d74f48ecfec601650de93John McCall }; 10584b9c2d235fb9449e249d74f48ecfec601650de93John McCall 10594b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// An RAII object to set (and then clear) a mapping for an OpaqueValueExpr. 10604b9c2d235fb9449e249d74f48ecfec601650de93John McCall class OpaqueValueMapping { 10614b9c2d235fb9449e249d74f48ecfec601650de93John McCall CodeGenFunction &CGF; 10624b9c2d235fb9449e249d74f48ecfec601650de93John McCall OpaqueValueMappingData Data; 10634b9c2d235fb9449e249d74f48ecfec601650de93John McCall 10644b9c2d235fb9449e249d74f48ecfec601650de93John McCall public: 10654b9c2d235fb9449e249d74f48ecfec601650de93John McCall static bool shouldBindAsLValue(const Expr *expr) { 10664b9c2d235fb9449e249d74f48ecfec601650de93John McCall return OpaqueValueMappingData::shouldBindAsLValue(expr); 10674b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 10684b9c2d235fb9449e249d74f48ecfec601650de93John McCall 106956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// Build the opaque value mapping for the given conditional 107056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// operator if it's the GNU ?: extension. This is a common 107156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// enough pattern that the convenience operator is really 107256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// helpful. 107356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// 107456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall OpaqueValueMapping(CodeGenFunction &CGF, 107556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall const AbstractConditionalOperator *op) : CGF(CGF) { 10764b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (isa<ConditionalOperator>(op)) 10774b9c2d235fb9449e249d74f48ecfec601650de93John McCall // Leave Data empty. 107856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return; 107956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 108056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall const BinaryConditionalOperator *e = cast<BinaryConditionalOperator>(op); 10814b9c2d235fb9449e249d74f48ecfec601650de93John McCall Data = OpaqueValueMappingData::bind(CGF, e->getOpaqueValue(), 10824b9c2d235fb9449e249d74f48ecfec601650de93John McCall e->getCommon()); 108356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 108456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 1085e996ffd240f20a1048179d7727a6ee3227261921John McCall OpaqueValueMapping(CodeGenFunction &CGF, 1086e996ffd240f20a1048179d7727a6ee3227261921John McCall const OpaqueValueExpr *opaqueValue, 108756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall LValue lvalue) 10884b9c2d235fb9449e249d74f48ecfec601650de93John McCall : CGF(CGF), Data(OpaqueValueMappingData::bind(CGF, opaqueValue, lvalue)) { 108956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 109056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 109156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall OpaqueValueMapping(CodeGenFunction &CGF, 109256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall const OpaqueValueExpr *opaqueValue, 109356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall RValue rvalue) 10944b9c2d235fb9449e249d74f48ecfec601650de93John McCall : CGF(CGF), Data(OpaqueValueMappingData::bind(CGF, opaqueValue, rvalue)) { 1095e996ffd240f20a1048179d7727a6ee3227261921John McCall } 1096e996ffd240f20a1048179d7727a6ee3227261921John McCall 1097e996ffd240f20a1048179d7727a6ee3227261921John McCall void pop() { 10984b9c2d235fb9449e249d74f48ecfec601650de93John McCall Data.unbind(CGF); 10994b9c2d235fb9449e249d74f48ecfec601650de93John McCall Data.clear(); 1100e996ffd240f20a1048179d7727a6ee3227261921John McCall } 1101e996ffd240f20a1048179d7727a6ee3227261921John McCall 1102e996ffd240f20a1048179d7727a6ee3227261921John McCall ~OpaqueValueMapping() { 11034b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (Data.isValid()) Data.unbind(CGF); 1104e996ffd240f20a1048179d7727a6ee3227261921John McCall } 1105e996ffd240f20a1048179d7727a6ee3227261921John McCall }; 1106e220455a059d926953befe72857b9525273717efFariborz Jahanian 1107e220455a059d926953befe72857b9525273717efFariborz Jahanian /// getByrefValueFieldNumber - Given a declaration, returns the LLVM field 1108e220455a059d926953befe72857b9525273717efFariborz Jahanian /// number that holds the value. 1109e220455a059d926953befe72857b9525273717efFariborz Jahanian unsigned getByRefValueLLVMField(const ValueDecl *VD) const; 111052a80e19ad688091723a52ad53337767bb0ac684Fariborz Jahanian 111152a80e19ad688091723a52ad53337767bb0ac684Fariborz Jahanian /// BuildBlockByrefAddress - Computes address location of the 111252a80e19ad688091723a52ad53337767bb0ac684Fariborz Jahanian /// variable which is declared as __block. 111352a80e19ad688091723a52ad53337767bb0ac684Fariborz Jahanian llvm::Value *BuildBlockByrefAddress(llvm::Value *BaseAddr, 111452a80e19ad688091723a52ad53337767bb0ac684Fariborz Jahanian const VarDecl *V); 11157f02f721d48772e4eee4fccd8af4f800be1bbc1eChris Lattnerprivate: 1116d9becd1846e2c72bf6ad283faa1b048f33dd3afeChris Lattner CGDebugInfo *DebugInfo; 1117aa11289f754d220c9c155b68a4f84cdcfcefef6aDevang Patel bool DisableDebugInfo; 111809429b962811f2c0a7a81a1b0a89f96f5878b20cMike Stump 111993c332a8ba2c193c435b293966d343dab15f555bJohn McCall /// DidCallStackSave - Whether llvm.stacksave has been called. Used to avoid 112093c332a8ba2c193c435b293966d343dab15f555bJohn McCall /// calling llvm.stacksave for multiple VLAs in the same scope. 112193c332a8ba2c193c435b293966d343dab15f555bJohn McCall bool DidCallStackSave; 112293c332a8ba2c193c435b293966d343dab15f555bJohn McCall 1123f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// IndirectBranch - The first time an indirect goto is seen we create a block 1124f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// with an indirect branch. Every time we see the address of a label taken, 1125f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// we add the label to the indirect goto. Every subsequent indirect goto is 1126f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// codegen'd as a jump to the IndirectBranch's basic block. 1127d9becd1846e2c72bf6ad283faa1b048f33dd3afeChris Lattner llvm::IndirectBrInst *IndirectBranch; 11280ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar 11290dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// LocalDeclMap - This keeps track of the LLVM allocas or globals for local C 11300dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// decls. 11316b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall typedef llvm::DenseMap<const Decl*, llvm::Value*> DeclMapTy; 11326b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall DeclMapTy LocalDeclMap; 11335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// LabelMap - This keeps track of the LLVM basic block for each C label. 1135ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner llvm::DenseMap<const LabelDecl*, JumpDest> LabelMap; 11360dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 11370dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // BreakContinueStack - This keeps track of where break and continue 1138e4b6d342c29d5cb9d311756100df1603810fa892Anders Carlsson // statements should jump to. 1139da13870e99fe33934b2122f06528a5063f78ae4cChris Lattner struct BreakContinue { 1140f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall BreakContinue(JumpDest Break, JumpDest Continue) 1141f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall : BreakBlock(Break), ContinueBlock(Continue) {} 11420dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1143f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall JumpDest BreakBlock; 1144f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall JumpDest ContinueBlock; 11450dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump }; 1146686775deca8b8685eb90801495880e3abdd844c2Chris Lattner SmallVector<BreakContinue, 8> BreakContinueStack; 114718ccc7776ad6288c5f630dc7967fb99d099c9cd9Daniel Dunbar 1148170fd49294b85ab10f820721d99ff9d109c7230dZhongxing Xu /// SwitchInsn - This is nearest current switch instruction. It is null if 11490dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// current context is not in a switch. 115051b09f2c528c8460b5465c676173324e44176d62Devang Patel llvm::SwitchInst *SwitchInsn; 115151b09f2c528c8460b5465c676173324e44176d62Devang Patel 11520dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// CaseRangeBlock - This block holds if condition check for last case 115380fd5f96e6805ac43aab99faabd5b4c8b19551b7Devang Patel /// statement range in current switch instruction. 1154c049e4f406a7f7179eba98659044a32508e53289Devang Patel llvm::BasicBlock *CaseRangeBlock; 1155c049e4f406a7f7179eba98659044a32508e53289Devang Patel 115656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// OpaqueLValues - Keeps track of the current set of opaque value 1157e996ffd240f20a1048179d7727a6ee3227261921John McCall /// expressions. 115856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall llvm::DenseMap<const OpaqueValueExpr *, LValue> OpaqueLValues; 115956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall llvm::DenseMap<const OpaqueValueExpr *, RValue> OpaqueRValues; 1160e996ffd240f20a1048179d7727a6ee3227261921John McCall 11610dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // VLASizeMap - This keeps track of the associated size for each VLA type. 1162bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman // We track this by the size expression rather than the type itself because 1163bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman // in certain situations, like a const qualifier applied to an VLA typedef, 1164bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman // multiple VLA types can share the same size expression. 11650dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // FIXME: Maybe this could be a stack of maps that is pushed/popped as we 11660dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // enter/leave scopes. 1167bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman llvm::DenseMap<const Expr*, llvm::Value*> VLASizeMap; 11680dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1169f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// A block containing a single 'unreachable' instruction. Created 1170f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// lazily by getUnreachableBlock(). 1171f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *UnreachableBlock; 11720dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1173f6c56e2323c3f973253805a2f35629f3253ebed4Anders Carlsson /// CXXThisDecl - When generating code for a C++ member function, 1174f6c56e2323c3f973253805a2f35629f3253ebed4Anders Carlsson /// this will hold the implicit 'this' declaration. 1175cec5ebd4a6a89a7023d04cec728fd340b541ed61Eli Friedman ImplicitParamDecl *CXXABIThisDecl; 1176cec5ebd4a6a89a7023d04cec728fd340b541ed61Eli Friedman llvm::Value *CXXABIThisValue; 11772504941793b549323f9d29c62507cf21d865fadeJohn McCall llvm::Value *CXXThisValue; 11781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1179f6c56e2323c3f973253805a2f35629f3253ebed4Anders Carlsson /// CXXVTTDecl - When generating code for a base object constructor or 1180f6c56e2323c3f973253805a2f35629f3253ebed4Anders Carlsson /// base object destructor with virtual bases, this will hold the implicit 1181f6c56e2323c3f973253805a2f35629f3253ebed4Anders Carlsson /// VTT parameter. 1182f6c56e2323c3f973253805a2f35629f3253ebed4Anders Carlsson ImplicitParamDecl *CXXVTTDecl; 11832504941793b549323f9d29c62507cf21d865fadeJohn McCall llvm::Value *CXXVTTValue; 11849cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 1185150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// OutermostConditional - Points to the outermost active 1186150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// conditional control. This is used so that we know if a 1187150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// temporary should be destroyed conditionally. 1188150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall ConditionalEvaluation *OutermostConditional; 11891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11907dfa4079f4b37507048b19bfc693d3b015d9dd11Anders Carlsson 11917dfa4079f4b37507048b19bfc693d3b015d9dd11Anders Carlsson /// ByrefValueInfoMap - For each __block variable, contains a pair of the LLVM 11927dfa4079f4b37507048b19bfc693d3b015d9dd11Anders Carlsson /// type as well as the field number that contains the actual data. 11932acc6e3feda5e4f7d9009bdcf8b1cd777fecfe2dChris Lattner llvm::DenseMap<const ValueDecl *, std::pair<llvm::Type *, 11947dfa4079f4b37507048b19bfc693d3b015d9dd11Anders Carlsson unsigned> > ByRefValueInfo; 11959cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 1196f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *TerminateLandingPad; 1197182f383db1782af752ecaf607fdff72a8542088bMike Stump llvm::BasicBlock *TerminateHandler; 119883252dcfe61aaebcb6bc117e71dc12968729513fChris Lattner llvm::BasicBlock *TrapBB; 1199940670512d7c3d93389bb38a426abcb7ef44271eEli Friedman 12000df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner /// Add a kernel metadata node to the named metadata node 'opencl.kernels'. 12010df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner /// In the kernel metadata node, reference the kernel function and metadata 12020df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner /// nodes for its optional attribute qualifiers (OpenCL 1.1 6.7.2): 12030df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner /// - A node for the work_group_size_hint(X,Y,Z) qualifier contains string 12040df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner /// "work_group_size_hint", and three 32-bit integers X, Y and Z. 12050df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner /// - A node for the reqd_work_group_size(X,Y,Z) qualifier contains string 12060df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner /// "reqd_work_group_size", and three 32-bit integers X, Y and Z. 12070df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner void EmitOpenCLKernelMetadata(const FunctionDecl *FD, 12080df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner llvm::Function *Fn); 12090df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner 12105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 12114904bf4e84cfb48080270ebaa9005327f18ab0e5Fariborz Jahanian CodeGenFunction(CodeGenModule &cgm, bool suppressNewContext=false); 12121a343ebbf413e8eae6b2737b2b2d79cbf5765571John McCall ~CodeGenFunction(); 12130dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 12141e7fe751466ea82665fd21e9162fd7cc9c5f412dJohn McCall CodeGenTypes &getTypes() const { return CGM.getTypes(); } 1215f2aac84709c418189e476ad591848dad50291885John McCall ASTContext &getContext() const { return CGM.getContext(); } 1216a240df2ec1b374b3e9e7f760875ffb17cd64506fAlexey Samsonov /// Returns true if DebugInfo is actually initialized. 1217a240df2ec1b374b3e9e7f760875ffb17cd64506fAlexey Samsonov bool maybeInitializeDebugInfo() { 1218a240df2ec1b374b3e9e7f760875ffb17cd64506fAlexey Samsonov if (CGM.getModuleDebugInfo()) { 1219a240df2ec1b374b3e9e7f760875ffb17cd64506fAlexey Samsonov DebugInfo = CGM.getModuleDebugInfo(); 1220a240df2ec1b374b3e9e7f760875ffb17cd64506fAlexey Samsonov return true; 1221a240df2ec1b374b3e9e7f760875ffb17cd64506fAlexey Samsonov } 1222a240df2ec1b374b3e9e7f760875ffb17cd64506fAlexey Samsonov return false; 1223a240df2ec1b374b3e9e7f760875ffb17cd64506fAlexey Samsonov } 1224aa11289f754d220c9c155b68a4f84cdcfcefef6aDevang Patel CGDebugInfo *getDebugInfo() { 1225aa11289f754d220c9c155b68a4f84cdcfcefef6aDevang Patel if (DisableDebugInfo) 1226aa11289f754d220c9c155b68a4f84cdcfcefef6aDevang Patel return NULL; 1227aa11289f754d220c9c155b68a4f84cdcfcefef6aDevang Patel return DebugInfo; 1228aa11289f754d220c9c155b68a4f84cdcfcefef6aDevang Patel } 1229aa11289f754d220c9c155b68a4f84cdcfcefef6aDevang Patel void disableDebugInfo() { DisableDebugInfo = true; } 1230aa11289f754d220c9c155b68a4f84cdcfcefef6aDevang Patel void enableDebugInfo() { DisableDebugInfo = false; } 1231aa11289f754d220c9c155b68a4f84cdcfcefef6aDevang Patel 1232f85e193739c953358c865005855253af4f68a497John McCall bool shouldUseFusedARCCalls() { 1233f85e193739c953358c865005855253af4f68a497John McCall return CGM.getCodeGenOpts().OptimizationLevel == 0; 1234f85e193739c953358c865005855253af4f68a497John McCall } 12355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12364e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie const LangOptions &getLangOpts() const { return CGM.getLangOpts(); } 1237d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall 1238285cfd8953d4ca4da613a47a0d691f7234068f8cBill Wendling /// Returns a pointer to the function's exception object and selector slot, 1239285cfd8953d4ca4da613a47a0d691f7234068f8cBill Wendling /// which is assigned in every landing pad. 1240f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::Value *getExceptionSlot(); 124193c332a8ba2c193c435b293966d343dab15f555bJohn McCall llvm::Value *getEHSelectorSlot(); 1242f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 1243ae270598d5c7a9a283d4b3ddce53b151c6e2b182Bill Wendling /// Returns the contents of the function's exception object and selector 1244ae270598d5c7a9a283d4b3ddce53b151c6e2b182Bill Wendling /// slots. 1245ae270598d5c7a9a283d4b3ddce53b151c6e2b182Bill Wendling llvm::Value *getExceptionFromSlot(); 1246ae270598d5c7a9a283d4b3ddce53b151c6e2b182Bill Wendling llvm::Value *getSelectorFromSlot(); 1247ae270598d5c7a9a283d4b3ddce53b151c6e2b182Bill Wendling 1248ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall llvm::Value *getNormalCleanupDestSlot(); 1249ff8e11579fc904aa4032d90d2be6ce1ac5fc9fe1John McCall 1250f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *getUnreachableBlock() { 1251f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall if (!UnreachableBlock) { 1252f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall UnreachableBlock = createBasicBlock("unreachable"); 1253f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall new llvm::UnreachableInst(getLLVMContext(), UnreachableBlock); 1254f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 1255f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return UnreachableBlock; 1256f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 1257f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 1258f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *getInvokeDest() { 1259f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall if (!EHStack.requiresLandingPad()) return 0; 1260f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall return getInvokeDestImpl(); 1261f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall } 12629834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar 1263d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall llvm::LLVMContext &getLLVMContext() { return CGM.getLLVMContext(); } 126469243825cb5c91ec7207256aa57ae327cfaf8cb2Owen Anderson 12659834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar //===--------------------------------------------------------------------===// 1266bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall // Cleanups 1267bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall //===--------------------------------------------------------------------===// 1268bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall 1269bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall typedef void Destroyer(CodeGenFunction &CGF, llvm::Value *addr, QualType ty); 1270bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall 12712673c68aa58e277ebc755b71d81aca618cdedbf9John McCall void pushIrregularPartialArrayCleanup(llvm::Value *arrayBegin, 12722673c68aa58e277ebc755b71d81aca618cdedbf9John McCall llvm::Value *arrayEndPointer, 12732673c68aa58e277ebc755b71d81aca618cdedbf9John McCall QualType elementType, 1274516bbd42e62d709013824d6fb8445a0cfda3129aPeter Collingbourne Destroyer *destroyer); 12752673c68aa58e277ebc755b71d81aca618cdedbf9John McCall void pushRegularPartialArrayCleanup(llvm::Value *arrayBegin, 12762673c68aa58e277ebc755b71d81aca618cdedbf9John McCall llvm::Value *arrayEnd, 12772673c68aa58e277ebc755b71d81aca618cdedbf9John McCall QualType elementType, 1278516bbd42e62d709013824d6fb8445a0cfda3129aPeter Collingbourne Destroyer *destroyer); 1279bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall 12809928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall void pushDestroy(QualType::DestructionKind dtorKind, 12819928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall llvm::Value *addr, QualType type); 1282bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall void pushDestroy(CleanupKind kind, llvm::Value *addr, QualType type, 1283516bbd42e62d709013824d6fb8445a0cfda3129aPeter Collingbourne Destroyer *destroyer, bool useEHCleanupForArray); 1284516bbd42e62d709013824d6fb8445a0cfda3129aPeter Collingbourne void emitDestroy(llvm::Value *addr, QualType type, Destroyer *destroyer, 12852673c68aa58e277ebc755b71d81aca618cdedbf9John McCall bool useEHCleanupForArray); 1286a91f6661c4685fecee6dc09bdaef73254c1aaa06John McCall llvm::Function *generateDestroyHelper(llvm::Constant *addr, 1287a91f6661c4685fecee6dc09bdaef73254c1aaa06John McCall QualType type, 1288516bbd42e62d709013824d6fb8445a0cfda3129aPeter Collingbourne Destroyer *destroyer, 1289a91f6661c4685fecee6dc09bdaef73254c1aaa06John McCall bool useEHCleanupForArray); 1290bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall void emitArrayDestroy(llvm::Value *begin, llvm::Value *end, 1291516bbd42e62d709013824d6fb8445a0cfda3129aPeter Collingbourne QualType type, Destroyer *destroyer, 1292fbf780a9d1dbb191fc40c8af967c590e08724b74John McCall bool checkZeroLength, bool useEHCleanup); 1293bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall 1294516bbd42e62d709013824d6fb8445a0cfda3129aPeter Collingbourne Destroyer *getDestroyer(QualType::DestructionKind destructionKind); 12959928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall 1296bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall /// Determines whether an EH cleanup is required to destroy a type 1297bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall /// with the given destruction kind. 1298bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall bool needsEHCleanup(QualType::DestructionKind kind) { 1299bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall switch (kind) { 1300bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall case QualType::DK_none: 1301bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall return false; 1302bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall case QualType::DK_cxx_destructor: 1303bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall case QualType::DK_objc_weak_lifetime: 13044e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie return getLangOpts().Exceptions; 1305bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall case QualType::DK_objc_strong_lifetime: 13064e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie return getLangOpts().Exceptions && 1307bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall CGM.getCodeGenOpts().ObjCAutoRefCountExceptions; 1308bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall } 1309bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall llvm_unreachable("bad destruction kind"); 1310bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall } 1311bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall 13129928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall CleanupKind getCleanupKind(QualType::DestructionKind kind) { 13139928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall return (needsEHCleanup(kind) ? NormalAndEHCleanup : NormalCleanup); 13149928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall } 13159928c4805aa8d5fabd488d0d0c5aeb64fd50f0e3John McCall 1316bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall //===--------------------------------------------------------------------===// 13179834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar // Objective-C 13189834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar //===--------------------------------------------------------------------===// 13199834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar 1320391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner void GenerateObjCMethod(const ObjCMethodDecl *OMD); 1321af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 13220dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump void StartObjCMethod(const ObjCMethodDecl *MD, 13238d3f8979e46f9d0b8735566eabe471db0e1e0e53Devang Patel const ObjCContainerDecl *CD, 13248d3f8979e46f9d0b8735566eabe471db0e1e0e53Devang Patel SourceLocation StartLoc); 1325af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 13260dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// GenerateObjCGetter - Synthesize an Objective-C property getter function. 1327fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian void GenerateObjCGetter(ObjCImplementationDecl *IMP, 1328fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian const ObjCPropertyImplDecl *PID); 13291e1f4871535f2cadcbf8c9af8cc48a2213192320John McCall void generateObjCGetterBody(const ObjCImplementationDecl *classImpl, 1330b6e5fe3cae9bf456f084c555c3ecc256f4181cc5Fariborz Jahanian const ObjCPropertyImplDecl *propImpl, 1331490a52b4947381879a47b4251db5fb81cdf5d02bFariborz Jahanian const ObjCMethodDecl *GetterMothodDecl, 1332b6e5fe3cae9bf456f084c555c3ecc256f4181cc5Fariborz Jahanian llvm::Constant *AtomicHelperFn); 13332846b97965e980ad2e7c8d444b82cc21d733a699Fariborz Jahanian 1334109dfc6ca6652f60c55ed0f2631aebf323d0200dFariborz Jahanian void GenerateObjCCtorDtorMethod(ObjCImplementationDecl *IMP, 1335109dfc6ca6652f60c55ed0f2631aebf323d0200dFariborz Jahanian ObjCMethodDecl *MD, bool ctor); 1336af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 13370dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// GenerateObjCSetter - Synthesize an Objective-C property setter function 13380dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// for the given property. 1339fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian void GenerateObjCSetter(ObjCImplementationDecl *IMP, 1340fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian const ObjCPropertyImplDecl *PID); 134171c758d3f4ecc8b511e6ae4a7210486aa994c182John McCall void generateObjCSetterBody(const ObjCImplementationDecl *classImpl, 1342cd93b96bc51c255d104095bc6a6d8eac74a84b1eFariborz Jahanian const ObjCPropertyImplDecl *propImpl, 1343cd93b96bc51c255d104095bc6a6d8eac74a84b1eFariborz Jahanian llvm::Constant *AtomicHelperFn); 13440b2bd47151ee9205ad6c66d1ffb921918106088aFariborz Jahanian bool IndirectObjCSetterArg(const CGFunctionInfo &FI); 134515bd58842adaa4f8cca4e58047ed18e033858d9bFariborz Jahanian bool IvarTypeWithAggrGCObjects(QualType Ty); 1346af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 13474e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump //===--------------------------------------------------------------------===// 13484e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump // Block Bits 13494e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump //===--------------------------------------------------------------------===// 13504e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump 13516b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall llvm::Value *EmitBlockLiteral(const BlockExpr *); 13521a343ebbf413e8eae6b2737b2b2d79cbf5765571John McCall llvm::Value *EmitBlockLiteral(const CGBlockInfo &Info); 13531a343ebbf413e8eae6b2737b2b2d79cbf5765571John McCall static void destroyBlockInfos(CGBlockInfo *info); 13542a7eb28397148079cbc8e54e8a3871ef01c4f4bcBlaine Garst llvm::Constant *BuildDescriptorBlockDecl(const BlockExpr *, 135589ecd41e0a6bfb3b0913dbe41c3c666340b308c7Fariborz Jahanian const CGBlockInfo &Info, 13562acc6e3feda5e4f7d9009bdcf8b1cd777fecfe2dChris Lattner llvm::StructType *, 1357d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall llvm::Constant *BlockVarLayout); 13584e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump 1359564360be450b319aeafc26698be9811837bfb826Fariborz Jahanian llvm::Function *GenerateBlockFunction(GlobalDecl GD, 13606b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall const CGBlockInfo &Info, 13616cc88f78fd36d3511b89412b193494b3e423cbffMike Stump const Decl *OuterFuncDecl, 136264bee65a3436e3f0c352fcfe2130676f3502cffeEli Friedman const DeclMapTy &ldm, 136364bee65a3436e3f0c352fcfe2130676f3502cffeEli Friedman bool IsLambdaConversionToBlock); 13644e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump 1365d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall llvm::Constant *GenerateCopyHelperFunction(const CGBlockInfo &blockInfo); 1366d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall llvm::Constant *GenerateDestroyHelperFunction(const CGBlockInfo &blockInfo); 136720abee6b95c4f5a61e471b4b616439280ca4a81bFariborz Jahanian llvm::Constant *GenerateObjCAtomicSetterCopyHelperFunction( 136820abee6b95c4f5a61e471b4b616439280ca4a81bFariborz Jahanian const ObjCPropertyImplDecl *PID); 136920abee6b95c4f5a61e471b4b616439280ca4a81bFariborz Jahanian llvm::Constant *GenerateObjCAtomicGetterCopyHelperFunction( 137020abee6b95c4f5a61e471b4b616439280ca4a81bFariborz Jahanian const ObjCPropertyImplDecl *PID); 1371cae40c4d448529fe65de3d87bdbe97d3b54b4d98Eli Friedman llvm::Value *EmitBlockCopyAndAutorelease(llvm::Value *Block, QualType Ty); 1372d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall 1373d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall void BuildBlockRelease(llvm::Value *DeclPtr, BlockFieldFlags flags); 1374d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall 13755af02db5a48476e0748f135369663080eae87c64John McCall class AutoVarEmission; 13765af02db5a48476e0748f135369663080eae87c64John McCall 13775af02db5a48476e0748f135369663080eae87c64John McCall void emitByrefStructureInit(const AutoVarEmission &emission); 13785af02db5a48476e0748f135369663080eae87c64John McCall void enterByrefCleanup(const AutoVarEmission &emission); 13795af02db5a48476e0748f135369663080eae87c64John McCall 13806b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall llvm::Value *LoadBlockStruct() { 13816b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall assert(BlockPointer && "no block pointer set!"); 13826b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall return BlockPointer; 13836b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall } 13844e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump 1385ea1471e0e967548c596a71469702f8846dbaf3c0John McCall void AllocateBlockCXXThisPointer(const CXXThisExpr *E); 1386f4b88a45902af1802a1cb42ba48b1c474474f228John McCall void AllocateBlockDecl(const DeclRefExpr *E); 13876b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall llvm::Value *GetAddrOfBlockDecl(const VarDecl *var, bool ByRef); 13882acc6e3feda5e4f7d9009bdcf8b1cd777fecfe2dChris Lattner llvm::Type *BuildByRefType(const VarDecl *var); 1389dab514fc30242c7afd6c03956e46136c400fb0d3Mike Stump 1390d26bc76c98006609002d9930f8840490e88ac5b5John McCall void GenerateCode(GlobalDecl GD, llvm::Function *Fn, 1391d26bc76c98006609002d9930f8840490e88ac5b5John McCall const CGFunctionInfo &FnInfo); 13920ff8bafde95f6fa51ccea70738c1b99db870bddcAnders Carlsson void StartFunction(GlobalDecl GD, QualType RetTy, 13937c086516f3cc9fba2733b1919973206c6ba4b171Daniel Dunbar llvm::Function *Fn, 1394d26bc76c98006609002d9930f8840490e88ac5b5John McCall const CGFunctionInfo &FnInfo, 13952284ac9ec80299fcdefae9a2787cf85105a0f203Daniel Dunbar const FunctionArgList &Args, 13969c6082fe89c61af697f017aa80937581cc2128d8Tilmann Scheller SourceLocation StartLoc); 1397a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 13989fc6a7774643a810c8501dae2323e863fefb623eJohn McCall void EmitConstructorBody(FunctionArgList &Args); 13999fc6a7774643a810c8501dae2323e863fefb623eJohn McCall void EmitDestructorBody(FunctionArgList &Args); 14009fc6a7774643a810c8501dae2323e863fefb623eJohn McCall void EmitFunctionBody(FunctionArgList &Args); 1401a355e07454463b19829ac92ffd115a097faff0e0John McCall 140264bee65a3436e3f0c352fcfe2130676f3502cffeEli Friedman void EmitForwardingCallToLambda(const CXXRecordDecl *Lambda, 140364bee65a3436e3f0c352fcfe2130676f3502cffeEli Friedman CallArgList &CallArgs); 1404bd89f8c2caa9550e41daa1aa9bf30f0f1e0dfaf7Eli Friedman void EmitLambdaToBlockPointerBody(FunctionArgList &Args); 140564bee65a3436e3f0c352fcfe2130676f3502cffeEli Friedman void EmitLambdaBlockInvokeBody(); 140627dd7d962bbf774988bc5e59d04a7743ed503514Douglas Gregor void EmitLambdaDelegatingInvokeBody(const CXXMethodDecl *MD); 140727dd7d962bbf774988bc5e59d04a7743ed503514Douglas Gregor void EmitLambdaStaticInvokeFunction(const CXXMethodDecl *MD); 1408bd89f8c2caa9550e41daa1aa9bf30f0f1e0dfaf7Eli Friedman 14090dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitReturnBlock - Emit the unified return block, trying to avoid its 14100dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// emission when possible. 14111c1d6074f5a0296dd273362655b1b8f9057289e3Daniel Dunbar void EmitReturnBlock(); 14121c1d6074f5a0296dd273362655b1b8f9057289e3Daniel Dunbar 14130dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// FinishFunction - Complete IR generation of the current function. It is 14140dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// legal to call this function even if there is no current insertion point. 1415af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar void FinishFunction(SourceLocation EndLoc=SourceLocation()); 141617b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar 1417519c32880b99396034ecaedc0cd86db2e8485003Anders Carlsson /// GenerateThunk - Generate a thunk for the given method. 1418d26bc76c98006609002d9930f8840490e88ac5b5John McCall void GenerateThunk(llvm::Function *Fn, const CGFunctionInfo &FnInfo, 1419d26bc76c98006609002d9930f8840490e88ac5b5John McCall GlobalDecl GD, const ThunkInfo &Thunk); 14209cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 14217dcdf5ba9324a9577461eae302e88fdd52e310c5Eli Friedman void GenerateVarArgsThunk(llvm::Function *Fn, const CGFunctionInfo &FnInfo, 14227dcdf5ba9324a9577461eae302e88fdd52e310c5Eli Friedman GlobalDecl GD, const ThunkInfo &Thunk); 14237dcdf5ba9324a9577461eae302e88fdd52e310c5Eli Friedman 1424fb8cc253420e93cee33d29df5a2bdae6aaf16e39Douglas Gregor void EmitCtorPrologue(const CXXConstructorDecl *CD, CXXCtorType Type, 1425fb8cc253420e93cee33d29df5a2bdae6aaf16e39Douglas Gregor FunctionArgList &Args); 14261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1427b74ed087469db042325bad76fdf3ff6ed67dec09Eli Friedman void EmitInitializerForField(FieldDecl *Field, LValue LHS, Expr *Init, 1428b74ed087469db042325bad76fdf3ff6ed67dec09Eli Friedman ArrayRef<VarDecl *> ArrayIndexes); 1429b74ed087469db042325bad76fdf3ff6ed67dec09Eli Friedman 1430d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson /// InitializeVTablePointer - Initialize the vtable pointer of the given 1431d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson /// subobject. 1432d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson /// 14339cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer void InitializeVTablePointer(BaseSubobject Base, 1434b3b772ea15a4cd54879e244629aa685ead9548bbAnders Carlsson const CXXRecordDecl *NearestVBase, 1435d6fb21fa1053e5d616af55b181bb03c50d4b0d24Ken Dyck CharUnits OffsetFromNearestVBase, 1436d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson llvm::Constant *VTable, 1437d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson const CXXRecordDecl *VTableClass); 1438d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson 1439d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson typedef llvm::SmallPtrSet<const CXXRecordDecl *, 4> VisitedVirtualBasesSetTy; 14409cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer void InitializeVTablePointers(BaseSubobject Base, 1441b3b772ea15a4cd54879e244629aa685ead9548bbAnders Carlsson const CXXRecordDecl *NearestVBase, 1442d6fb21fa1053e5d616af55b181bb03c50d4b0d24Ken Dyck CharUnits OffsetFromNearestVBase, 1443603d6d12cc4cba1ef219a3d55c698c7c87f87adfAnders Carlsson bool BaseIsNonVirtualPrimaryBase, 1444603d6d12cc4cba1ef219a3d55c698c7c87f87adfAnders Carlsson llvm::Constant *VTable, 1445603d6d12cc4cba1ef219a3d55c698c7c87f87adfAnders Carlsson const CXXRecordDecl *VTableClass, 1446603d6d12cc4cba1ef219a3d55c698c7c87f87adfAnders Carlsson VisitedVirtualBasesSetTy& VBases); 144777a259c6dbf582949af8a243b472c0c7faa373a6Eli Friedman 1448603d6d12cc4cba1ef219a3d55c698c7c87f87adfAnders Carlsson void InitializeVTablePointers(const CXXRecordDecl *ClassDecl); 1449d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson 1450043fb9a1fc0609285f60f0f87e5a18195408f34cDan Gohman /// GetVTablePtr - Return the Value of the vtable pointer member pointed 1451043fb9a1fc0609285f60f0f87e5a18195408f34cDan Gohman /// to by This. 14522acc6e3feda5e4f7d9009bdcf8b1cd777fecfe2dChris Lattner llvm::Value *GetVTablePtr(llvm::Value *This, llvm::Type *Ty); 1453d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson 145450da2cadcc6da86abff6772de65280ace2cabc94John McCall /// EnterDtorCleanups - Enter the cleanups necessary to complete the 145550da2cadcc6da86abff6772de65280ace2cabc94John McCall /// given phase of destruction for a destructor. The end result 145650da2cadcc6da86abff6772de65280ace2cabc94John McCall /// should call destructors on members and base classes in reverse 145750da2cadcc6da86abff6772de65280ace2cabc94John McCall /// order of their construction. 145850da2cadcc6da86abff6772de65280ace2cabc94John McCall void EnterDtorCleanups(const CXXDestructorDecl *Dtor, CXXDtorType Type); 14591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14607255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner /// ShouldInstrumentFunction - Return true if the current function should be 14617255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner /// instrumented with __cyg_profile_func_* calls 14627255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner bool ShouldInstrumentFunction(); 14637255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner 14647255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner /// EmitFunctionInstrumentation - Emit LLVM code to call the specified 14657255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner /// instrumentation function with the current function and the call site, if 14667255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner /// function instrumentation is enabled. 14677255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner void EmitFunctionInstrumentation(const char *Fn); 14687255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner 1469be4c8705e499b55548467eb7adaa23cbc6edfef9Roman Divacky /// EmitMCountInstrumentation - Emit call to .mcount. 1470be4c8705e499b55548467eb7adaa23cbc6edfef9Roman Divacky void EmitMCountInstrumentation(); 1471be4c8705e499b55548467eb7adaa23cbc6edfef9Roman Divacky 14720dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitFunctionProlog - Emit the target specific LLVM code to load the 14730dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// arguments for the given function. This is also responsible for naming the 14740dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// LLVM function arguments. 147588b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar void EmitFunctionProlog(const CGFunctionInfo &FI, 147688b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar llvm::Function *Fn, 147717b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar const FunctionArgList &Args); 147817b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar 14790dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitFunctionEpilog - Emit the target specific LLVM code to return the 14800dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// given temporary. 148135b21b884e5c3447a52a74d7ffaba966b07ac81fChris Lattner void EmitFunctionEpilog(const CGFunctionInfo &FI); 148217b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar 1483cce3d4f9812182ed4e551b7cf0fc86576be8d9c5Mike Stump /// EmitStartEHSpec - Emit the start of the exception spec. 1484cce3d4f9812182ed4e551b7cf0fc86576be8d9c5Mike Stump void EmitStartEHSpec(const Decl *D); 1485cce3d4f9812182ed4e551b7cf0fc86576be8d9c5Mike Stump 1486cce3d4f9812182ed4e551b7cf0fc86576be8d9c5Mike Stump /// EmitEndEHSpec - Emit the end of the exception spec. 1487cce3d4f9812182ed4e551b7cf0fc86576be8d9c5Mike Stump void EmitEndEHSpec(const Decl *D); 1488cce3d4f9812182ed4e551b7cf0fc86576be8d9c5Mike Stump 1489f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// getTerminateLandingPad - Return a landing pad that just calls terminate. 1490f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::BasicBlock *getTerminateLandingPad(); 1491f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 1492f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// getTerminateHandler - Return a handler (not a landing pad, just 1493f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// a catch handler) that just calls terminate. This is used when 1494f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall /// a terminate scope encloses a try. 14959b39c51ae3c547568ac42325f94b4197618f6b18Mike Stump llvm::BasicBlock *getTerminateHandler(); 14969b39c51ae3c547568ac42325f94b4197618f6b18Mike Stump 14979cbe4f0ba01ec304e1e3d071c071f7bca33631c0Chris Lattner llvm::Type *ConvertTypeForMem(QualType T); 14989cbe4f0ba01ec304e1e3d071c071f7bca33631c0Chris Lattner llvm::Type *ConvertType(QualType T); 14999cbe4f0ba01ec304e1e3d071c071f7bca33631c0Chris Lattner llvm::Type *ConvertType(const TypeDecl *T) { 1500bff225ecf77fb891596ecb1b27196310d268365eJohn McCall return ConvertType(getContext().getTypeDeclType(T)); 1501bff225ecf77fb891596ecb1b27196310d268365eJohn McCall } 1502c8aa5f1f264fb230c38182adab944232bb160c2bChris Lattner 15030dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// LoadObjCSelf - Load the value of self. This function is only valid while 15040dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// generating code for an Objective-C method. 1505c8aa5f1f264fb230c38182adab944232bb160c2bChris Lattner llvm::Value *LoadObjCSelf(); 15060dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 15070dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// TypeOfSelfObject - Return type of object that this self represents. 150845012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian QualType TypeOfSelfObject(); 15094111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner 15105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// hasAggregateLLVMType - Return true if the specified AST type will map into 15115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// an aggregate LLVM type or is void. 15125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool hasAggregateLLVMType(QualType T); 151355e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar 151455e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar /// createBasicBlock - Create an LLVM basic block. 15154def70d3040e73707c738f7c366737a986135edfRichard Smith llvm::BasicBlock *createBasicBlock(const Twine &name = "", 1516d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall llvm::Function *parent = 0, 1517d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall llvm::BasicBlock *before = 0) { 151829ea6729155c759836be4b5453bee9ef8e1e97eeDaniel Dunbar#ifdef NDEBUG 1519d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall return llvm::BasicBlock::Create(getLLVMContext(), "", parent, before); 152029ea6729155c759836be4b5453bee9ef8e1e97eeDaniel Dunbar#else 1521d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall return llvm::BasicBlock::Create(getLLVMContext(), name, parent, before); 152229ea6729155c759836be4b5453bee9ef8e1e97eeDaniel Dunbar#endif 152355e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar } 15240dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 15255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getBasicBlockForLabel - Return the LLVM basicblock that the specified 15265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// label maps to. 1527ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner JumpDest getJumpDestForLabel(const LabelDecl *S); 15280dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1529f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// SimplifyForwardingBlocks - If the given basic block is only a branch to 1530f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// another basic block, simplify it. This assumes that no other code could 1531f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// potentially reference the basic block. 1532aa5bd87f1fd5f9ca47924248817c89325759b30eDaniel Dunbar void SimplifyForwardingBlocks(llvm::BasicBlock *BB); 1533aa5bd87f1fd5f9ca47924248817c89325759b30eDaniel Dunbar 15340dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitBlock - Emit the given block \arg BB and set it as the insert point, 15350dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// adding a fall-through branch from the current insert block if 15360dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// necessary. It is legal to call this function even if there is no current 15370dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// insertion point. 1538a0c21a8faa79e88ac432d116eca58f7a7217195dDaniel Dunbar /// 15390dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// IsFinished - If true, indicates that the caller has finished emitting 15400dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// branches to the given block and does not expect to emit code into it. This 15410dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// means the block can be ignored if it is unreachable. 1542a0c21a8faa79e88ac432d116eca58f7a7217195dDaniel Dunbar void EmitBlock(llvm::BasicBlock *BB, bool IsFinished=false); 1543824e3bd76b2e32db2ec6e4d2d113413e518d1c63Daniel Dunbar 1544777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall /// EmitBlockAfterUses - Emit the given block somewhere hopefully 1545777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall /// near its uses, and leave the insertion point in it. 1546777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall void EmitBlockAfterUses(llvm::BasicBlock *BB); 1547777d6e56ad9b1fed9866daf3ee6486d85c5b7d32John McCall 15480dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitBranch - Emit a branch to the specified basic block from the current 15490dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// insert block, taking care to avoid creation of branches from dummy 15500dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// blocks. It is legal to call this function even if there is no current 15510dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// insertion point. 15525e08ad3cc62ab94649959ae227a9a411a729bf49Daniel Dunbar /// 15530dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// This function clears the current insertion point. The caller should follow 15540dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// calls to this function with calls to Emit*Block prior to generation new 15550dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// code. 1556d57a871339c7c98d58d93108b806f59bdf4e13e2Daniel Dunbar void EmitBranch(llvm::BasicBlock *Block); 1557d57a871339c7c98d58d93108b806f59bdf4e13e2Daniel Dunbar 15580dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// HaveInsertPoint - True if an insertion point is defined. If not, this 15590dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// indicates that the current code being emitted is unreachable. 15600dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump bool HaveInsertPoint() const { 1561a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar return Builder.GetInsertBlock() != 0; 1562a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar } 1563a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 15640dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EnsureInsertPoint - Ensure that an insertion point is defined so that 15650dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// emitted IR has a place to go. Note that by definition, if this function 15660dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// creates a block then that block is unreachable; callers may do better to 15670dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// detect when no insertion point is defined and simply skip IR generation. 1568a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar void EnsureInsertPoint() { 1569a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar if (!HaveInsertPoint()) 1570a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar EmitBlock(createBasicBlock()); 1571a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar } 15720dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1573488e993a135ce700b982bf099c3d6b856301d642Daniel Dunbar /// ErrorUnsupported - Print out an error that codegen doesn't support the 1574dc5e8268292046114ffe02e48773572a91a310f1Chris Lattner /// specified stmt yet. 157590df4b6661968a84bf64baee489bb2f6d948fcc1Daniel Dunbar void ErrorUnsupported(const Stmt *S, const char *Type, 157690df4b6661968a84bf64baee489bb2f6d948fcc1Daniel Dunbar bool OmitOnError=false); 15775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 15795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Helpers 15805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 15810dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 15826da2c716017d5c8530ec99779524491ebc5dadb8Eli Friedman LValue MakeAddrLValue(llvm::Value *V, QualType T, 15836da2c716017d5c8530ec99779524491ebc5dadb8Eli Friedman CharUnits Alignment = CharUnits()) { 15843d5aff5d3036b0ff09d114857cd2276134b3d8c9Dan Gohman return LValue::MakeAddr(V, T, Alignment, getContext(), 15853d5aff5d3036b0ff09d114857cd2276134b3d8c9Dan Gohman CGM.getTBAAInfo(T)); 15862f77b3d57031ded0de2b7b977fb63b4660f82624Eli Friedman } 1587e0c1168ec7910a1a7ed08df4d4f0c58c2fa2ecd1John McCall 15882f77b3d57031ded0de2b7b977fb63b4660f82624Eli Friedman LValue MakeNaturalAlignAddrLValue(llvm::Value *V, QualType T) { 15896da2c716017d5c8530ec99779524491ebc5dadb8Eli Friedman CharUnits Alignment; 15906da2c716017d5c8530ec99779524491ebc5dadb8Eli Friedman if (!T->isIncompleteType()) 15916da2c716017d5c8530ec99779524491ebc5dadb8Eli Friedman Alignment = getContext().getTypeAlignInChars(T); 15922f77b3d57031ded0de2b7b977fb63b4660f82624Eli Friedman return LValue::MakeAddr(V, T, Alignment, getContext(), 15932f77b3d57031ded0de2b7b977fb63b4660f82624Eli Friedman CGM.getTBAAInfo(T)); 15945cf8bfec711116b3c4acc70a00717b2e119e7550Daniel Dunbar } 15955cf8bfec711116b3c4acc70a00717b2e119e7550Daniel Dunbar 15965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// CreateTempAlloca - This creates a alloca and inserts it into the entry 1597195337d2e5d4625ae9dc1328c7cdbc7115b0261bDaniel Dunbar /// block. The caller is responsible for setting an appropriate alignment on 1598195337d2e5d4625ae9dc1328c7cdbc7115b0261bDaniel Dunbar /// the alloca. 15992acc6e3feda5e4f7d9009bdcf8b1cd777fecfe2dChris Lattner llvm::AllocaInst *CreateTempAlloca(llvm::Type *Ty, 16008cc488fefb2fb04bc8d5398da29f0182f97934cfChris Lattner const Twine &Name = "tmp"); 16010dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1602ac418162692a951ca3796d6830496a85a2d12493John McCall /// InitTempAlloca - Provide an initial value for the given alloca. 1603ac418162692a951ca3796d6830496a85a2d12493John McCall void InitTempAlloca(llvm::AllocaInst *Alloca, llvm::Value *Value); 1604ac418162692a951ca3796d6830496a85a2d12493John McCall 16059bd4da2cfa8b956b851200db8f9a37e175edbb15Daniel Dunbar /// CreateIRTemp - Create a temporary IR object of the given type, with 16069bd4da2cfa8b956b851200db8f9a37e175edbb15Daniel Dunbar /// appropriate alignment. This routine should only be used when an temporary 16079bd4da2cfa8b956b851200db8f9a37e175edbb15Daniel Dunbar /// value needs to be stored into an alloca (for example, to avoid explicit 16089bd4da2cfa8b956b851200db8f9a37e175edbb15Daniel Dunbar /// PHI construction), but the type is the IR type, not the type appropriate 16099bd4da2cfa8b956b851200db8f9a37e175edbb15Daniel Dunbar /// for storing in memory. 16108cc488fefb2fb04bc8d5398da29f0182f97934cfChris Lattner llvm::AllocaInst *CreateIRTemp(QualType T, const Twine &Name = "tmp"); 16119bd4da2cfa8b956b851200db8f9a37e175edbb15Daniel Dunbar 1612195337d2e5d4625ae9dc1328c7cdbc7115b0261bDaniel Dunbar /// CreateMemTemp - Create a temporary memory object of the given type, with 1613195337d2e5d4625ae9dc1328c7cdbc7115b0261bDaniel Dunbar /// appropriate alignment. 16148cc488fefb2fb04bc8d5398da29f0182f97934cfChris Lattner llvm::AllocaInst *CreateMemTemp(QualType T, const Twine &Name = "tmp"); 1615195337d2e5d4625ae9dc1328c7cdbc7115b0261bDaniel Dunbar 1616558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// CreateAggTemp - Create a temporary memory object for the given 1617558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// aggregate type. 16188cc488fefb2fb04bc8d5398da29f0182f97934cfChris Lattner AggValueSlot CreateAggTemp(QualType T, const Twine &Name = "tmp") { 1619d7722d9d76a851e7897f4127626616d3b1b8e530Eli Friedman CharUnits Alignment = getContext().getTypeAlignInChars(T); 1620f394078fde147dcf27e9b6a7965517388d64dcb6Eli Friedman return AggValueSlot::forAddr(CreateMemTemp(T, Name), Alignment, 1621f394078fde147dcf27e9b6a7965517388d64dcb6Eli Friedman T.getQualifiers(), 16227c2349be2d11143a2e59a167fd43362a3bf4585eJohn McCall AggValueSlot::IsNotDestructed, 1623410ffb2bc5f072d58a73c14560345bcf77dec1ccJohn McCall AggValueSlot::DoesNotNeedGCBarriers, 1624649b4a1a9b5e6f768ca0cb84bd97b00f51083e15Chad Rosier AggValueSlot::IsNotAliased); 1625558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall } 1626558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall 1627d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall /// Emit a cast to void* in the appropriate address space. 1628d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall llvm::Value *EmitCastToVoidPtr(llvm::Value *value); 1629d16c2cf1cafa413709aa487cbbd5dc392f1ba1ffJohn McCall 16305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EvaluateExprAsBool - Perform the usual unary conversions on the specified 16315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// expression and compare the result against zero, returning an Int1Ty value. 16325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::Value *EvaluateExprAsBool(const Expr *E); 16335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16342a41637a995affa1563f4d82a8b026e326a2faa0John McCall /// EmitIgnoredExpr - Emit an expression in a context which ignores the result. 16352a41637a995affa1563f4d82a8b026e326a2faa0John McCall void EmitIgnoredExpr(const Expr *E); 16362a41637a995affa1563f4d82a8b026e326a2faa0John McCall 16379b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// EmitAnyExpr - Emit code to compute the specified expression which can have 16389b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// any type. The result is returned as an RValue struct. If this is an 16399b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// aggregate expression, the aggloc/agglocvolatile arguments indicate where 16409b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// the result should be returned. 164149d1cd5a09ed3df353371fd7f206674a85e0fb45Mike Stump /// 164270517ca5c07c4b41ff8662b94ee22047b0299f8cDmitri Gribenko /// \param ignoreResult True if the resulting value isn't used. 1643558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall RValue EmitAnyExpr(const Expr *E, 1644e0c1168ec7910a1a7ed08df4d4f0c58c2fa2ecd1John McCall AggValueSlot aggSlot = AggValueSlot::ignored(), 1645e0c1168ec7910a1a7ed08df4d4f0c58c2fa2ecd1John McCall bool ignoreResult = false); 1646d9363c3a80168283b3da518b4e17f545a6246857Devang Patel 16470dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // EmitVAListRef - Emit a "reference" to a va_list; this is either the address 16480dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // or the value of the expression, depending on how va_list is defined. 16494fd0aa5803357d8c72eeac2cae15e12649ea08feEli Friedman llvm::Value *EmitVAListRef(const Expr *E); 16504fd0aa5803357d8c72eeac2cae15e12649ea08feEli Friedman 16510dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitAnyExprToTemp - Similary to EmitAnyExpr(), however, the result will 16520dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// always be accessible even if no aggregate location is provided. 1653558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall RValue EmitAnyExprToTemp(const Expr *E); 165446f45b9bec4a265ad8400a538e5ec3a5683617f1Daniel Dunbar 165560d3365b46eb826fba44483583c0051ac5c41fe3John McCall /// EmitAnyExprToMem - Emits the code necessary to evaluate an 1656649b4a1a9b5e6f768ca0cb84bd97b00f51083e15Chad Rosier /// arbitrary expression into the given memory location. 16573d3ec1c099ec8bfac3aa1fb0126fe515b7c7fa05John McCall void EmitAnyExprToMem(const Expr *E, llvm::Value *Location, 1658649b4a1a9b5e6f768ca0cb84bd97b00f51083e15Chad Rosier Qualifiers Quals, bool IsInitializer); 16593d3ec1c099ec8bfac3aa1fb0126fe515b7c7fa05John McCall 166060d3365b46eb826fba44483583c0051ac5c41fe3John McCall /// EmitExprAsInit - Emits the code necessary to initialize a 166160d3365b46eb826fba44483583c0051ac5c41fe3John McCall /// location in memory with the given initializer. 1662f85e193739c953358c865005855253af4f68a497John McCall void EmitExprAsInit(const Expr *init, const ValueDecl *D, 1663a07398ed98ea2b55ad7a505a3aab18aed93b149fJohn McCall LValue lvalue, bool capturedByInit); 166460d3365b46eb826fba44483583c0051ac5c41fe3John McCall 16656cacae8bf9597b8124cd40aedc189c04484e1990Benjamin Kramer /// EmitAggregateCopy - Emit an aggrate assignment. 16666cacae8bf9597b8124cd40aedc189c04484e1990Benjamin Kramer /// 16676cacae8bf9597b8124cd40aedc189c04484e1990Benjamin Kramer /// The difference to EmitAggregateCopy is that tail padding is not copied. 16686cacae8bf9597b8124cd40aedc189c04484e1990Benjamin Kramer /// This is required for correctness when assigning non-POD structures in C++. 16696cacae8bf9597b8124cd40aedc189c04484e1990Benjamin Kramer void EmitAggregateAssign(llvm::Value *DestPtr, llvm::Value *SrcPtr, 16706cacae8bf9597b8124cd40aedc189c04484e1990Benjamin Kramer QualType EltTy, bool isVolatile=false, 16716cacae8bf9597b8124cd40aedc189c04484e1990Benjamin Kramer CharUnits Alignment = CharUnits::Zero()) { 16726cacae8bf9597b8124cd40aedc189c04484e1990Benjamin Kramer EmitAggregateCopy(DestPtr, SrcPtr, EltTy, isVolatile, Alignment, true); 16736cacae8bf9597b8124cd40aedc189c04484e1990Benjamin Kramer } 16746cacae8bf9597b8124cd40aedc189c04484e1990Benjamin Kramer 167527fe2e6c97a3782a0639d87b460741e8ba5d076dMike Stump /// EmitAggregateCopy - Emit an aggrate copy. 167627fe2e6c97a3782a0639d87b460741e8ba5d076dMike Stump /// 1677f3477c13eeaf11b32a41f181398fb5deffd0dd73Sylvestre Ledru /// \param isVolatile - True iff either the source or the destination is 167827fe2e6c97a3782a0639d87b460741e8ba5d076dMike Stump /// volatile. 16796cacae8bf9597b8124cd40aedc189c04484e1990Benjamin Kramer /// \param isAssignment - If false, allow padding to be copied. This often 16806cacae8bf9597b8124cd40aedc189c04484e1990Benjamin Kramer /// yields more efficient. 16817482d12c345c6391f8956850545e2d4aa7701ce6Daniel Dunbar void EmitAggregateCopy(llvm::Value *DestPtr, llvm::Value *SrcPtr, 1682bd7d82878c1588afccbee6c68fa6e17bbbab7f2cEli Friedman QualType EltTy, bool isVolatile=false, 16836cacae8bf9597b8124cd40aedc189c04484e1990Benjamin Kramer CharUnits Alignment = CharUnits::Zero(), 16846cacae8bf9597b8124cd40aedc189c04484e1990Benjamin Kramer bool isAssignment = false); 16857482d12c345c6391f8956850545e2d4aa7701ce6Daniel Dunbar 168651b09f2c528c8460b5465c676173324e44176d62Devang Patel /// StartBlock - Start new block named N. If insert block is a dummy block 168751b09f2c528c8460b5465c676173324e44176d62Devang Patel /// then reuse it. 168851b09f2c528c8460b5465c676173324e44176d62Devang Patel void StartBlock(const char *N); 168951b09f2c528c8460b5465c676173324e44176d62Devang Patel 1690813733577d33ec56479667b49e1bff42dc6bba90Lauro Ramos Venancio /// GetAddrOfStaticLocalVar - Return the address of a static local variable. 16914c40d98ab7acf5f27fa89b17bd8fc0ef7683df37John McCall llvm::Constant *GetAddrOfStaticLocalVar(const VarDecl *BVD) { 16924c40d98ab7acf5f27fa89b17bd8fc0ef7683df37John McCall return cast<llvm::Constant>(GetAddrOfLocalVar(BVD)); 16934c40d98ab7acf5f27fa89b17bd8fc0ef7683df37John McCall } 16944f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman 1695dde0a94120915fa925d1ffcdb997c7b44dc9fa21Anders Carlsson /// GetAddrOfLocalVar - Return the address of a local variable. 16964c40d98ab7acf5f27fa89b17bd8fc0ef7683df37John McCall llvm::Value *GetAddrOfLocalVar(const VarDecl *VD) { 16974c40d98ab7acf5f27fa89b17bd8fc0ef7683df37John McCall llvm::Value *Res = LocalDeclMap[VD]; 16984c40d98ab7acf5f27fa89b17bd8fc0ef7683df37John McCall assert(Res && "Invalid argument to GetAddrOfLocalVar(), no decl!"); 16994c40d98ab7acf5f27fa89b17bd8fc0ef7683df37John McCall return Res; 17004c40d98ab7acf5f27fa89b17bd8fc0ef7683df37John McCall } 17010dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 170256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// getOpaqueLValueMapping - Given an opaque value expression (which 170356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// must be mapped to an l-value), return its mapping. 170456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall const LValue &getOpaqueLValueMapping(const OpaqueValueExpr *e) { 170556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall assert(OpaqueValueMapping::shouldBindAsLValue(e)); 170656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 170756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall llvm::DenseMap<const OpaqueValueExpr*,LValue>::iterator 170856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall it = OpaqueLValues.find(e); 170956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall assert(it != OpaqueLValues.end() && "no mapping for opaque value!"); 171056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall return it->second; 171156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall } 171256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 171356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// getOpaqueRValueMapping - Given an opaque value expression (which 171456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// must be mapped to an r-value), return its mapping. 171556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall const RValue &getOpaqueRValueMapping(const OpaqueValueExpr *e) { 171656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall assert(!OpaqueValueMapping::shouldBindAsLValue(e)); 171756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 171856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall llvm::DenseMap<const OpaqueValueExpr*,RValue>::iterator 171956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall it = OpaqueRValues.find(e); 172056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall assert(it != OpaqueRValues.end() && "no mapping for opaque value!"); 1721e996ffd240f20a1048179d7727a6ee3227261921John McCall return it->second; 1722e996ffd240f20a1048179d7727a6ee3227261921John McCall } 1723e996ffd240f20a1048179d7727a6ee3227261921John McCall 17244f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman /// getAccessedFieldNo - Given an encoded value and a result number, return 17254f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman /// the input field number being accessed. 17264f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman static unsigned getAccessedFieldNo(unsigned Idx, const llvm::Constant *Elts); 17274f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman 1728ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner llvm::BlockAddress *GetAddrOfLabel(const LabelDecl *L); 17293d00fdc82fd550ae4bfbb2e700a1fc85bbd6d6fdChris Lattner llvm::BasicBlock *GetIndirectGotoBlock(); 17300ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar 17311884eb0b5c55edda4893ddec45e7dbad79758782Anders Carlsson /// EmitNullInitialization - Generate code to set a value of the given type to 17321884eb0b5c55edda4893ddec45e7dbad79758782Anders Carlsson /// null, If the type contains data member pointers, they will be initialized 17331884eb0b5c55edda4893ddec45e7dbad79758782Anders Carlsson /// to -1 in accordance with the Itanium C++ ABI. 17341884eb0b5c55edda4893ddec45e7dbad79758782Anders Carlsson void EmitNullInitialization(llvm::Value *DestPtr, QualType Ty); 1735ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson 1736ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson // EmitVAArg - Generate code to get an argument from the passed in pointer 1737ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson // and update it accordingly. The return value is a pointer to the argument. 1738ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson // FIXME: We should be able to get rid of this method and use the va_arg 17390dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // instruction in LLVM instead once it works well enough. 1740ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson llvm::Value *EmitVAArg(llvm::Value *VAListAddr, QualType Ty); 1741f666b7780d04186521adcaedb0e15dfa4d5e6933Anders Carlsson 1742bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall /// emitArrayLength - Compute the length of an array, even if it's a 1743bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall /// VLA, and drill down to the base element type. 1744bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall llvm::Value *emitArrayLength(const ArrayType *arrayType, 1745bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall QualType &baseType, 1746bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall llvm::Value *&addr); 1747bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall 1748bc8d40d85f3fa1e34569834916f18fecaa635152John McCall /// EmitVLASize - Capture all the sizes for the VLA expressions in 1749bc8d40d85f3fa1e34569834916f18fecaa635152John McCall /// the given variably-modified type and store them in the VLASizeMap. 1750d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// 1751d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// This function can be called with a null (unreachable) insert point. 1752bc8d40d85f3fa1e34569834916f18fecaa635152John McCall void EmitVariablyModifiedType(QualType Ty); 1753bc8d40d85f3fa1e34569834916f18fecaa635152John McCall 1754bc8d40d85f3fa1e34569834916f18fecaa635152John McCall /// getVLASize - Returns an LLVM value that corresponds to the size, 1755bc8d40d85f3fa1e34569834916f18fecaa635152John McCall /// in non-variably-sized elements, of a variable length array type, 1756bc8d40d85f3fa1e34569834916f18fecaa635152John McCall /// plus that largest non-variably-sized element type. Assumes that 1757bc8d40d85f3fa1e34569834916f18fecaa635152John McCall /// the type has already been emitted with EmitVariablyModifiedType. 1758bc8d40d85f3fa1e34569834916f18fecaa635152John McCall std::pair<llvm::Value*,QualType> getVLASize(const VariableArrayType *vla); 1759bc8d40d85f3fa1e34569834916f18fecaa635152John McCall std::pair<llvm::Value*,QualType> getVLASize(QualType vla); 1760dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson 17615f4307b7ba164b03c853c8d3eb4674d33f8967a6Anders Carlsson /// LoadCXXThis - Load the value of 'this'. This function is only valid while 17625f4307b7ba164b03c853c8d3eb4674d33f8967a6Anders Carlsson /// generating code for an C++ member function. 17632504941793b549323f9d29c62507cf21d865fadeJohn McCall llvm::Value *LoadCXXThis() { 17642504941793b549323f9d29c62507cf21d865fadeJohn McCall assert(CXXThisValue && "no 'this' value for this function"); 17652504941793b549323f9d29c62507cf21d865fadeJohn McCall return CXXThisValue; 17662504941793b549323f9d29c62507cf21d865fadeJohn McCall } 17671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1768c997d4278d329e18891aac9698fb991b2d4622ebAnders Carlsson /// LoadCXXVTT - Load the VTT parameter to base constructors/destructors have 1769c997d4278d329e18891aac9698fb991b2d4622ebAnders Carlsson /// virtual bases. 17702504941793b549323f9d29c62507cf21d865fadeJohn McCall llvm::Value *LoadCXXVTT() { 17712504941793b549323f9d29c62507cf21d865fadeJohn McCall assert(CXXVTTValue && "no VTT value for this function"); 17722504941793b549323f9d29c62507cf21d865fadeJohn McCall return CXXVTTValue; 17732504941793b549323f9d29c62507cf21d865fadeJohn McCall } 1774bff225ecf77fb891596ecb1b27196310d268365eJohn McCall 1775bff225ecf77fb891596ecb1b27196310d268365eJohn McCall /// GetAddressOfBaseOfCompleteClass - Convert the given pointer to a 17768561a8666c70f924c8f0209c41b9b77bbbf90607Anders Carlsson /// complete class to the given direct base. 17778561a8666c70f924c8f0209c41b9b77bbbf90607Anders Carlsson llvm::Value * 17788561a8666c70f924c8f0209c41b9b77bbbf90607Anders Carlsson GetAddressOfDirectBaseInCompleteClass(llvm::Value *Value, 17798561a8666c70f924c8f0209c41b9b77bbbf90607Anders Carlsson const CXXRecordDecl *Derived, 17808561a8666c70f924c8f0209c41b9b77bbbf90607Anders Carlsson const CXXRecordDecl *Base, 17818561a8666c70f924c8f0209c41b9b77bbbf90607Anders Carlsson bool BaseIsVirtual); 1782a88ad5618fcb07c5374c79d6781a33234984b039Anders Carlsson 1783f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// GetAddressOfBaseClass - This function will add the necessary delta to the 1784f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// load of 'this' and returns address of the base class. 17859cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer llvm::Value *GetAddressOfBaseClass(llvm::Value *Value, 17868561a8666c70f924c8f0209c41b9b77bbbf90607Anders Carlsson const CXXRecordDecl *Derived, 1787f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastExpr::path_const_iterator PathBegin, 1788f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastExpr::path_const_iterator PathEnd, 178934a2d384c745ebc39cae45dc1c0c4a6a7012e09bAnders Carlsson bool NullCheckValue); 179034a2d384c745ebc39cae45dc1c0c4a6a7012e09bAnders Carlsson 1791a3697c9c155bda93fd2802f37084b620f4738822Anders Carlsson llvm::Value *GetAddressOfDerivedClass(llvm::Value *Value, 17928561a8666c70f924c8f0209c41b9b77bbbf90607Anders Carlsson const CXXRecordDecl *Derived, 1793f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastExpr::path_const_iterator PathBegin, 1794f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastExpr::path_const_iterator PathEnd, 17955a0f49ebc83e7fe0da07b9964c44b0a7fae270cbAnders Carlsson bool NullCheckValue); 1796a3697c9c155bda93fd2802f37084b620f4738822Anders Carlsson 1797bb7e17b52ffaa4097b4c4d7935746d23539ffe2aAnders Carlsson llvm::Value *GetVirtualBaseClassOffset(llvm::Value *This, 1798bb7e17b52ffaa4097b4c4d7935746d23539ffe2aAnders Carlsson const CXXRecordDecl *ClassDecl, 1799bb7e17b52ffaa4097b4c4d7935746d23539ffe2aAnders Carlsson const CXXRecordDecl *BaseClassDecl); 18009cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 1801c0bf462cf35fe050bddbd8bff967298e4a67e79dJohn McCall void EmitDelegateCXXConstructorCall(const CXXConstructorDecl *Ctor, 1802c0bf462cf35fe050bddbd8bff967298e4a67e79dJohn McCall CXXCtorType CtorType, 1803c0bf462cf35fe050bddbd8bff967298e4a67e79dJohn McCall const FunctionArgList &Args); 1804059ce0d92eb5a7da900ae735dc0a2ea3d64f4b0bSean Hunt // It's important not to confuse this and the previous function. Delegating 1805059ce0d92eb5a7da900ae735dc0a2ea3d64f4b0bSean Hunt // constructors are the C++0x feature. The constructor delegate optimization 1806059ce0d92eb5a7da900ae735dc0a2ea3d64f4b0bSean Hunt // is used to reduce duplication in the base and complete consturctors where 1807059ce0d92eb5a7da900ae735dc0a2ea3d64f4b0bSean Hunt // they are substantially the same. 1808059ce0d92eb5a7da900ae735dc0a2ea3d64f4b0bSean Hunt void EmitDelegatingCXXConstructorCall(const CXXConstructorDecl *Ctor, 1809059ce0d92eb5a7da900ae735dc0a2ea3d64f4b0bSean Hunt const FunctionArgList &Args); 1810155ed4a23366f4514befb1c9f5f89d16f8b8b6dbAnders Carlsson void EmitCXXConstructorCall(const CXXConstructorDecl *D, CXXCtorType Type, 1811155ed4a23366f4514befb1c9f5f89d16f8b8b6dbAnders Carlsson bool ForVirtualBase, llvm::Value *This, 1812b14095aa98c6fedd3625920c4ce834bcaf24d9f7Anders Carlsson CallExpr::const_arg_iterator ArgBeg, 1813b14095aa98c6fedd3625920c4ce834bcaf24d9f7Anders Carlsson CallExpr::const_arg_iterator ArgEnd); 181434999876e215b22febc240b1a6dc054215d12f9cFariborz Jahanian 181534999876e215b22febc240b1a6dc054215d12f9cFariborz Jahanian void EmitSynthesizedCXXCopyCtorCall(const CXXConstructorDecl *D, 181634999876e215b22febc240b1a6dc054215d12f9cFariborz Jahanian llvm::Value *This, llvm::Value *Src, 181734999876e215b22febc240b1a6dc054215d12f9cFariborz Jahanian CallExpr::const_arg_iterator ArgBeg, 181834999876e215b22febc240b1a6dc054215d12f9cFariborz Jahanian CallExpr::const_arg_iterator ArgEnd); 18191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1820288dcaf329c49b01dacd5c1dd9f35609555feecdFariborz Jahanian void EmitCXXAggrConstructorCall(const CXXConstructorDecl *D, 1821569c1f4a6c703eaa8b963bed7d5c2fd5d4569e93Anders Carlsson const ConstantArrayType *ArrayTy, 18225d4d946ec2d88696fd8422aeb64dc29688e6a2c1Anders Carlsson llvm::Value *ArrayPtr, 18235d4d946ec2d88696fd8422aeb64dc29688e6a2c1Anders Carlsson CallExpr::const_arg_iterator ArgBeg, 182459174c0633fb5cde41735cfbff5744bdf837e8d9Douglas Gregor CallExpr::const_arg_iterator ArgEnd, 182559174c0633fb5cde41735cfbff5744bdf837e8d9Douglas Gregor bool ZeroInitialization = false); 18269cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 1827569c1f4a6c703eaa8b963bed7d5c2fd5d4569e93Anders Carlsson void EmitCXXAggrConstructorCall(const CXXConstructorDecl *D, 1828569c1f4a6c703eaa8b963bed7d5c2fd5d4569e93Anders Carlsson llvm::Value *NumElements, 18295d4d946ec2d88696fd8422aeb64dc29688e6a2c1Anders Carlsson llvm::Value *ArrayPtr, 18305d4d946ec2d88696fd8422aeb64dc29688e6a2c1Anders Carlsson CallExpr::const_arg_iterator ArgBeg, 183159174c0633fb5cde41735cfbff5744bdf837e8d9Douglas Gregor CallExpr::const_arg_iterator ArgEnd, 183259174c0633fb5cde41735cfbff5744bdf837e8d9Douglas Gregor bool ZeroInitialization = false); 1833b14095aa98c6fedd3625920c4ce834bcaf24d9f7Anders Carlsson 1834bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall static Destroyer destroyCXXObject; 1835bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall 18367267c1693abe7875b0c57268be05005ae013c6c9Anders Carlsson void EmitCXXDestructorCall(const CXXDestructorDecl *D, CXXDtorType Type, 18378e6404ca28d6bbb76e97ea2a53a74816c2a74665Anders Carlsson bool ForVirtualBase, llvm::Value *This); 18389cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 1839197056726ed6412501130c2ef2ff69009772aa65John McCall void EmitNewArrayInitializer(const CXXNewExpr *E, QualType elementType, 1840197056726ed6412501130c2ef2ff69009772aa65John McCall llvm::Value *NewPtr, llvm::Value *NumElements); 18411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 184286811609d9353e3aed198045d56e790eb3b6118cPeter Collingbourne void EmitCXXTemporary(const CXXTemporary *Temporary, QualType TempType, 184386811609d9353e3aed198045d56e790eb3b6118cPeter Collingbourne llvm::Value *Ptr); 18441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1845a00703dccbdc6cc4a293db38477dea7db5538c7eAnders Carlsson llvm::Value *EmitCXXNewExpr(const CXXNewExpr *E); 184660e282cc1e508be327b0481cecedc206873cb86aAnders Carlsson void EmitCXXDeleteExpr(const CXXDeleteExpr *E); 18471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18484bf8152799ec41796f989ea1b94f6f1bac349117Eli Friedman void EmitDeleteCall(const FunctionDecl *DeleteFD, llvm::Value *Ptr, 18494bf8152799ec41796f989ea1b94f6f1bac349117Eli Friedman QualType DeleteTy); 18504bf8152799ec41796f989ea1b94f6f1bac349117Eli Friedman 1851c2e84ae9a6d25cea3e583c768e576b4c981ec028Mike Stump llvm::Value* EmitCXXTypeidExpr(const CXXTypeidExpr *E); 1852c849c052d6b4b70f2651c1969531861a5f230053Mike Stump llvm::Value *EmitDynamicCast(llvm::Value *V, const CXXDynamicCastExpr *DCE); 1853c5f804636e367ef744fd24cf88f7c956a5af0434Nico Weber llvm::Value* EmitCXXUuidofExpr(const CXXUuidofExpr *E); 1854c2e84ae9a6d25cea3e583c768e576b4c981ec028Mike Stump 1855972edf0534d8a50f87fac1d0ff34eb22f593df11Sebastian Redl void MaybeEmitStdInitializerListCleanup(llvm::Value *loc, const Expr *init); 1856af130fd78267ee9e2395b758a7d827b07ce317a0Sebastian Redl void EmitStdInitializerListCleanup(llvm::Value *loc, 1857af130fd78267ee9e2395b758a7d827b07ce317a0Sebastian Redl const InitListExpr *init); 185832cf1f27ae8620e7b79bb4e81a067187c0aab7aeSebastian Redl 18592c9f87ca5cccbfdaad82762368af5b2323320653Richard Smith /// \brief Situations in which we might emit a check for the suitability of a 18602c9f87ca5cccbfdaad82762368af5b2323320653Richard Smith /// pointer or glvalue. 18617ac9ef1c82c779a5348ed11b3d10e01c58803b35Richard Smith enum TypeCheckKind { 18622c9f87ca5cccbfdaad82762368af5b2323320653Richard Smith /// Checking the operand of a load. Must be suitably sized and aligned. 18637ac9ef1c82c779a5348ed11b3d10e01c58803b35Richard Smith TCK_Load, 18642c9f87ca5cccbfdaad82762368af5b2323320653Richard Smith /// Checking the destination of a store. Must be suitably sized and aligned. 18657ac9ef1c82c779a5348ed11b3d10e01c58803b35Richard Smith TCK_Store, 18662c9f87ca5cccbfdaad82762368af5b2323320653Richard Smith /// Checking the bound value in a reference binding. Must be suitably sized 18672c9f87ca5cccbfdaad82762368af5b2323320653Richard Smith /// and aligned, but is not required to refer to an object (until the 18682c9f87ca5cccbfdaad82762368af5b2323320653Richard Smith /// reference is used), per core issue 453. 18697ac9ef1c82c779a5348ed11b3d10e01c58803b35Richard Smith TCK_ReferenceBinding, 18702c9f87ca5cccbfdaad82762368af5b2323320653Richard Smith /// Checking the object expression in a non-static data member access. Must 18712c9f87ca5cccbfdaad82762368af5b2323320653Richard Smith /// be an object within its lifetime. 18727ac9ef1c82c779a5348ed11b3d10e01c58803b35Richard Smith TCK_MemberAccess, 18732c9f87ca5cccbfdaad82762368af5b2323320653Richard Smith /// Checking the 'this' pointer for a call to a non-static member function. 18742c9f87ca5cccbfdaad82762368af5b2323320653Richard Smith /// Must be an object within its lifetime. 18758e1cee6f23e2552b96b81e5ef419ab3f69c5b5c2Richard Smith TCK_MemberCall, 18768e1cee6f23e2552b96b81e5ef419ab3f69c5b5c2Richard Smith /// Checking the 'this' pointer for a constructor call. 18778e1cee6f23e2552b96b81e5ef419ab3f69c5b5c2Richard Smith TCK_ConstructorCall 18782c9f87ca5cccbfdaad82762368af5b2323320653Richard Smith }; 18792c9f87ca5cccbfdaad82762368af5b2323320653Richard Smith 18807ac9ef1c82c779a5348ed11b3d10e01c58803b35Richard Smith /// \brief Emit a check that \p V is the address of storage of the 18812c9f87ca5cccbfdaad82762368af5b2323320653Richard Smith /// appropriate size and alignment for an object of type \p Type. 18824def70d3040e73707c738f7c366737a986135edfRichard Smith void EmitTypeCheck(TypeCheckKind TCK, SourceLocation Loc, llvm::Value *V, 18837ac9ef1c82c779a5348ed11b3d10e01c58803b35Richard Smith QualType Type, CharUnits Alignment = CharUnits::Zero()); 1884b14e62d5aee7522b98c410ee65bd750c2cfe6f01Mike Stump 1885dd36d328730d8c02915d0884541b45ec6ca0049dChris Lattner llvm::Value *EmitScalarPrePostIncDec(const UnaryOperator *E, LValue LV, 1886dd36d328730d8c02915d0884541b45ec6ca0049dChris Lattner bool isInc, bool isPre); 1887dd36d328730d8c02915d0884541b45ec6ca0049dChris Lattner ComplexPairTy EmitComplexPrePostIncDec(const UnaryOperator *E, LValue LV, 1888dd36d328730d8c02915d0884541b45ec6ca0049dChris Lattner bool isInc, bool isPre); 18895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 18905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Declaration Emission 18915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 18920dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1893d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// EmitDecl - Emit a declaration. 1894d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// 1895d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// This function can be called with a null (unreachable) insert point. 18965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitDecl(const Decl &D); 1897d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar 1898b6bbcc9995186799a60ce17d0c1acff31601653aJohn McCall /// EmitVarDecl - Emit a local variable declaration. 1899d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// 1900d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// This function can be called with a null (unreachable) insert point. 1901b6bbcc9995186799a60ce17d0c1acff31601653aJohn McCall void EmitVarDecl(const VarDecl &D); 1902d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar 1903f85e193739c953358c865005855253af4f68a497John McCall void EmitScalarInit(const Expr *init, const ValueDecl *D, 1904a07398ed98ea2b55ad7a505a3aab18aed93b149fJohn McCall LValue lvalue, bool capturedByInit); 19057acddacc921cd0b3f813443a8641eeddb82dfbd4John McCall void EmitScalarInit(llvm::Value *init, LValue lvalue); 1906f85e193739c953358c865005855253af4f68a497John McCall 1907f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall typedef void SpecialInitFn(CodeGenFunction &Init, const VarDecl &D, 1908f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::Value *Address); 1909f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 1910b6bbcc9995186799a60ce17d0c1acff31601653aJohn McCall /// EmitAutoVarDecl - Emit an auto variable declaration. 1911d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// 1912d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// This function can be called with a null (unreachable) insert point. 191334695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall void EmitAutoVarDecl(const VarDecl &D); 191434695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall 191534695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall class AutoVarEmission { 191634695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall friend class CodeGenFunction; 191734695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall 191857b3b6a60856eaec30fd876a8a3face8f7e3ad7bJohn McCall const VarDecl *Variable; 191934695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall 192034695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall /// The alignment of the variable. 192134695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall CharUnits Alignment; 192234695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall 192334695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall /// The address of the alloca. Null if the variable was emitted 192434695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall /// as a global constant. 192534695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall llvm::Value *Address; 192634695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall 192734695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall llvm::Value *NRVOFlag; 192834695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall 192934695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall /// True if the variable is a __block variable. 193034695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall bool IsByRef; 193134695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall 193234695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall /// True if the variable is of aggregate type and has a constant 193334695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall /// initializer. 193434695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall bool IsConstantAggregate; 193534695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall 193657b3b6a60856eaec30fd876a8a3face8f7e3ad7bJohn McCall struct Invalid {}; 193757b3b6a60856eaec30fd876a8a3face8f7e3ad7bJohn McCall AutoVarEmission(Invalid) : Variable(0) {} 193857b3b6a60856eaec30fd876a8a3face8f7e3ad7bJohn McCall 193934695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall AutoVarEmission(const VarDecl &variable) 194057b3b6a60856eaec30fd876a8a3face8f7e3ad7bJohn McCall : Variable(&variable), Address(0), NRVOFlag(0), 194134695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall IsByRef(false), IsConstantAggregate(false) {} 194234695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall 194334695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall bool wasEmittedAsGlobal() const { return Address == 0; } 194434695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall 194534695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall public: 194657b3b6a60856eaec30fd876a8a3face8f7e3ad7bJohn McCall static AutoVarEmission invalid() { return AutoVarEmission(Invalid()); } 194757b3b6a60856eaec30fd876a8a3face8f7e3ad7bJohn McCall 194834695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall /// Returns the address of the object within this declaration. 194934695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall /// Note that this does not chase the forwarding pointer for 195034695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall /// __block decls. 195134695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall llvm::Value *getObjectAddress(CodeGenFunction &CGF) const { 195234695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall if (!IsByRef) return Address; 195334695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall 195434695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall return CGF.Builder.CreateStructGEP(Address, 195557b3b6a60856eaec30fd876a8a3face8f7e3ad7bJohn McCall CGF.getByRefValueLLVMField(Variable), 195657b3b6a60856eaec30fd876a8a3face8f7e3ad7bJohn McCall Variable->getNameAsString()); 195734695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall } 195834695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall }; 195934695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall AutoVarEmission EmitAutoVarAlloca(const VarDecl &var); 196034695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall void EmitAutoVarInit(const AutoVarEmission &emission); 196134695856c0e67b3765b46304cc71b5d2cd5b71c7John McCall void EmitAutoVarCleanups(const AutoVarEmission &emission); 1962bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall void emitAutoVarTypeCleanup(const AutoVarEmission &emission, 1963bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall QualType::DestructionKind dtorKind); 1964d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar 1965b6bbcc9995186799a60ce17d0c1acff31601653aJohn McCall void EmitStaticVarDecl(const VarDecl &D, 1966b6bbcc9995186799a60ce17d0c1acff31601653aJohn McCall llvm::GlobalValue::LinkageTypes Linkage); 1967b7ec246872b412f0e7bb9e93eacfd78cfa6adfb3Daniel Dunbar 1968b7ec246872b412f0e7bb9e93eacfd78cfa6adfb3Daniel Dunbar /// EmitParmDecl - Emit a ParmVarDecl or an ImplicitParamDecl. 1969093ac461b37a573dcf226fa55faed96f318169b9Devang Patel void EmitParmDecl(const VarDecl &D, llvm::Value *Arg, unsigned ArgNo); 19700dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 197156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// protectFromPeepholes - Protect a value that we're intending to 197256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// store to the side, but which will probably be used later, from 197356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// aggressive peepholing optimizations that might delete it. 197456ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// 197556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// Pass the result to unprotectFromPeepholes to declare that 197656ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// protection is no longer required. 197756ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// 197856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// There's no particular reason why this shouldn't apply to 197956ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall /// l-values, it's just that no existing peepholes work on pointers. 198056ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall PeepholeProtection protectFromPeepholes(RValue rvalue); 198156ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall void unprotectFromPeepholes(PeepholeProtection protection); 198256ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 19835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 19845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Statement Emission 19855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 19865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 19870dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitStopPoint - Emit a debug stoppoint if we are emitting debug info. 19880912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar void EmitStopPoint(const Stmt *S); 19890912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar 19900dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitStmt - Emit the code for the statement \arg S. It is legal to call 19910dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// this function even if there is no current insertion point. 19920dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// 19930dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// This function may clear the current insertion point; callers should use 19940dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EnsureInsertPoint if they wish to subsequently generate code without first 19950dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// calling EmitBlock, EmitBranch, or EmitStmt. 19965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitStmt(const Stmt *S); 1997a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 19980912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar /// EmitSimpleStmt - Try to emit a "simple" statement which does not 19990dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// necessarily require an insertion point or debug information; typically 20000dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// because the statement amounts to a jump or a container of other 20010dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// statements. 20020912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar /// 20030912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar /// \return True if the statement was handled. 20040912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar bool EmitSimpleStmt(const Stmt *S); 20050912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar 20069b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner RValue EmitCompoundStmt(const CompoundStmt &S, bool GetLast = false, 2007558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall AggValueSlot AVS = AggValueSlot::ignored()); 2008a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 20090dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitLabel - Emit the block for the given label. It is legal to call this 20100dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// function even if there is no current insertion point. 2011ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner void EmitLabel(const LabelDecl *D); // helper for EmitLabelStmt. 2012a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 20135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitLabelStmt(const LabelStmt &S); 2014534986f2b21e6050bf00163cd6423fd92155a6edRichard Smith void EmitAttributedStmt(const AttributedStmt &S); 20155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitGotoStmt(const GotoStmt &S); 20160ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar void EmitIndirectGotoStmt(const IndirectGotoStmt &S); 20175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitIfStmt(const IfStmt &S); 20185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitWhileStmt(const WhileStmt &S); 20195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitDoStmt(const DoStmt &S); 20205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitForStmt(const ForStmt &S); 20215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitReturnStmt(const ReturnStmt &S); 20225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitDeclStmt(const DeclStmt &S); 20230912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar void EmitBreakStmt(const BreakStmt &S); 20240912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar void EmitContinueStmt(const ContinueStmt &S); 202551b09f2c528c8460b5465c676173324e44176d62Devang Patel void EmitSwitchStmt(const SwitchStmt &S); 202651b09f2c528c8460b5465c676173324e44176d62Devang Patel void EmitDefaultStmt(const DefaultStmt &S); 202751b09f2c528c8460b5465c676173324e44176d62Devang Patel void EmitCaseStmt(const CaseStmt &S); 2028c049e4f406a7f7179eba98659044a32508e53289Devang Patel void EmitCaseStmtRange(const CaseStmt &S); 2029a23b91d542e336be5051ac54f394e860fb756911Chad Rosier void EmitAsmStmt(const AsmStmt &S); 20300dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 20313d8400d9a61aa4b63ff35e5cede405b32a41425eAnders Carlsson void EmitObjCForCollectionStmt(const ObjCForCollectionStmt &S); 203264d5d6c5903157c521af496479d06dc26032d718Anders Carlsson void EmitObjCAtTryStmt(const ObjCAtTryStmt &S); 203364d5d6c5903157c521af496479d06dc26032d718Anders Carlsson void EmitObjCAtThrowStmt(const ObjCAtThrowStmt &S); 203410cac6f7115b59a466bb8d2d51cdddeb38aadc37Chris Lattner void EmitObjCAtSynchronizedStmt(const ObjCAtSynchronizedStmt &S); 2035f85e193739c953358c865005855253af4f68a497John McCall void EmitObjCAutoreleasePoolStmt(const ObjCAutoreleasePoolStmt &S); 20360dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 203793c332a8ba2c193c435b293966d343dab15f555bJohn McCall llvm::Constant *getUnwindResumeFn(); 203886a3a03667bdb0dcab7e6a2877dfd234b07a6d43Douglas Gregor llvm::Constant *getUnwindResumeOrRethrowFn(); 203959a7000a79118e4c140885ccbb2ac6a686a73092John McCall void EnterCXXTryStmt(const CXXTryStmt &S, bool IsFnTryBlock = false); 204059a7000a79118e4c140885ccbb2ac6a686a73092John McCall void ExitCXXTryStmt(const CXXTryStmt &S, bool IsFnTryBlock = false); 20419fc6a7774643a810c8501dae2323e863fefb623eJohn McCall 20426815e941998659a55c20c147861b0f437928c3d8Anders Carlsson void EmitCXXTryStmt(const CXXTryStmt &S); 2043ad762fcdc16b9e4705b12b09d92b8c026212b906Richard Smith void EmitCXXForRangeStmt(const CXXForRangeStmt &S); 20449cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 20455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 20465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // LValue Expression Emission 20475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 20485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 204913e81737a433b23f8c662d10d1d57356122a8caaDaniel Dunbar /// GetUndefRValue - Get an appropriate 'undef' rvalue for the given type. 205013e81737a433b23f8c662d10d1d57356122a8caaDaniel Dunbar RValue GetUndefRValue(QualType Ty); 205113e81737a433b23f8c662d10d1d57356122a8caaDaniel Dunbar 2052ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar /// EmitUnsupportedRValue - Emit a dummy r-value using the type of E 2053ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar /// and issue an ErrorUnsupported style diagnostic (using the 2054ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar /// provided Name). 2055ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar RValue EmitUnsupportedRValue(const Expr *E, 2056ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar const char *Name); 2057ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar 20580dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitUnsupportedLValue - Emit a dummy l-value using the type of E and issue 20590dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// an ErrorUnsupported style diagnostic (using the provided Name). 20606ba82a4a4b295e54cf192c3e98b28f39990c6194Daniel Dunbar LValue EmitUnsupportedLValue(const Expr *E, 20616ba82a4a4b295e54cf192c3e98b28f39990c6194Daniel Dunbar const char *Name); 20626ba82a4a4b295e54cf192c3e98b28f39990c6194Daniel Dunbar 20635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EmitLValue - Emit code to compute a designator that specifies the location 20645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// of the expression. 20655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 20665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// This can return one of two things: a simple address or a bitfield 20675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// reference. In either case, the LLVM Value* in the LValue structure is 20685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// guaranteed to be an LLVM pointer type. 20695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 20705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// If this returns a bitfield reference, nothing about the pointee type of 20715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// the LLVM value is known: For example, it may not be a pointer to an 20725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// integer. 20735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 20745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// If this returns a normal address, and if the lvalue's C type is fixed 20755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// size, this method guarantees that the returned pointer type will point to 20765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// an LLVM type of the same size of the lvalue's type. If the lvalue has a 20775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// variable length type, this is not possible. 20785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 20795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitLValue(const Expr *E); 20800dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 20817ac9ef1c82c779a5348ed11b3d10e01c58803b35Richard Smith /// \brief Same as EmitLValue but additionally we generate checking code to 20827ac9ef1c82c779a5348ed11b3d10e01c58803b35Richard Smith /// guard against undefined behavior. This is only suitable when we know 20837ac9ef1c82c779a5348ed11b3d10e01c58803b35Richard Smith /// that the address will be used to access the object. 20847ac9ef1c82c779a5348ed11b3d10e01c58803b35Richard Smith LValue EmitCheckedLValue(const Expr *E, TypeCheckKind TCK); 2085b14e62d5aee7522b98c410ee65bd750c2cfe6f01Mike Stump 208626815d97c5743481e317f17a8d53a6819d061862John McCall /// EmitToMemory - Change a scalar value from its value 208726815d97c5743481e317f17a8d53a6819d061862John McCall /// representation to its in-memory representation. 208826815d97c5743481e317f17a8d53a6819d061862John McCall llvm::Value *EmitToMemory(llvm::Value *Value, QualType Ty); 208926815d97c5743481e317f17a8d53a6819d061862John McCall 209026815d97c5743481e317f17a8d53a6819d061862John McCall /// EmitFromMemory - Change a scalar value from its memory 209126815d97c5743481e317f17a8d53a6819d061862John McCall /// representation to its value representation. 209226815d97c5743481e317f17a8d53a6819d061862John McCall llvm::Value *EmitFromMemory(llvm::Value *Value, QualType Ty); 209326815d97c5743481e317f17a8d53a6819d061862John McCall 20949d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// EmitLoadOfScalar - Load a scalar value from an address, taking 20959d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// care to appropriately convert from the memory representation to 20969d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// the LLVM value representation. 209709429b962811f2c0a7a81a1b0a89f96f5878b20cMike Stump llvm::Value *EmitLoadOfScalar(llvm::Value *Addr, bool Volatile, 20983d5aff5d3036b0ff09d114857cd2276134b3d8c9Dan Gohman unsigned Alignment, QualType Ty, 20993d5aff5d3036b0ff09d114857cd2276134b3d8c9Dan Gohman llvm::MDNode *TBAAInfo = 0); 2100545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall 2101545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall /// EmitLoadOfScalar - Load a scalar value from an address, taking 2102545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall /// care to appropriately convert from the memory representation to 2103545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall /// the LLVM value representation. The l-value must be a simple 2104545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall /// l-value. 2105a07398ed98ea2b55ad7a505a3aab18aed93b149fJohn McCall llvm::Value *EmitLoadOfScalar(LValue lvalue); 21069d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar 21079d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// EmitStoreOfScalar - Store a scalar value to an address, taking 21089d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// care to appropriately convert from the memory representation to 21099d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// the LLVM value representation. 211009429b962811f2c0a7a81a1b0a89f96f5878b20cMike Stump void EmitStoreOfScalar(llvm::Value *Value, llvm::Value *Addr, 21113d5aff5d3036b0ff09d114857cd2276134b3d8c9Dan Gohman bool Volatile, unsigned Alignment, QualType Ty, 21127a7ee3033e44b45630981355460ef89efa0bdcc4David Chisnall llvm::MDNode *TBAAInfo = 0, bool isInit=false); 2113545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall 2114545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall /// EmitStoreOfScalar - Store a scalar value to an address, taking 2115545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall /// care to appropriately convert from the memory representation to 2116545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall /// the LLVM value representation. The l-value must be a simple 21177a7ee3033e44b45630981355460ef89efa0bdcc4David Chisnall /// l-value. The isInit flag indicates whether this is an initialization. 21187a7ee3033e44b45630981355460ef89efa0bdcc4David Chisnall /// If so, atomic qualifiers are ignored and the store is always non-atomic. 21197a7ee3033e44b45630981355460ef89efa0bdcc4David Chisnall void EmitStoreOfScalar(llvm::Value *value, LValue lvalue, bool isInit=false); 21209d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar 21215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EmitLoadOfLValue - Given an expression that represents a value lvalue, 21225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// this method emits the address of the lvalue, then loads the result as an 21235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// rvalue, returning the rvalue. 2124545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall RValue EmitLoadOfLValue(LValue V); 2125545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall RValue EmitLoadOfExtVectorElementLValue(LValue V); 2126545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall RValue EmitLoadOfBitfieldLValue(LValue LV); 21270dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 21285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EmitStoreThroughLValue - Store the specified rvalue into the specified 21295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// lvalue, where both are guaranteed to the have the same type, and that type 21305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// is 'Ty'. 21317a7ee3033e44b45630981355460ef89efa0bdcc4David Chisnall void EmitStoreThroughLValue(RValue Src, LValue Dst, bool isInit=false); 2132545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall void EmitStoreThroughExtVectorComponentLValue(RValue Src, LValue Dst); 2133ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar 21340dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitStoreThroughLValue - Store Src into Dst with same constraints as 21350dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitStoreThroughLValue. 2136ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar /// 21370dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// \param Result [out] - If non-null, this will be set to a Value* for the 21380dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// bit-field contents after the store, appropriate for use as the result of 21390dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// an assignment to the bit-field. 2140545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall void EmitStoreThroughBitfieldLValue(RValue Src, LValue Dst, 2141ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar llvm::Value **Result=0); 21420dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 214383ce9d4a552987d34cbd500e983db8d770232379John McCall /// Emit an l-value for an assignment (simple or compound) of complex type. 214483ce9d4a552987d34cbd500e983db8d770232379John McCall LValue EmitComplexAssignmentLValue(const BinaryOperator *E); 21452a41637a995affa1563f4d82a8b026e326a2faa0John McCall LValue EmitComplexCompoundAssignmentLValue(const CompoundAssignOperator *E); 214683ce9d4a552987d34cbd500e983db8d770232379John McCall 2147fc8f0e14ad142ed811e90fbd9a30e419e301c717Chris Lattner // Note: only available for agg return types 214880e62c29fe21cd06c93eba6e72b7e32dca06fcf9Daniel Dunbar LValue EmitBinaryOperatorLValue(const BinaryOperator *E); 21492a41637a995affa1563f4d82a8b026e326a2faa0John McCall LValue EmitCompoundAssignmentLValue(const CompoundAssignOperator *E); 21505b5c9ef865607e179413462dcd71bcebb5b7daaeDaniel Dunbar // Note: only available for agg return types 215122c940ee588a420cd2e6c8f68be2ac3cc80061ffChristopher Lamb LValue EmitCallExprLValue(const CallExpr *E); 21525b5c9ef865607e179413462dcd71bcebb5b7daaeDaniel Dunbar // Note: only available for agg return types 21535b5c9ef865607e179413462dcd71bcebb5b7daaeDaniel Dunbar LValue EmitVAArgExprLValue(const VAArgExpr *E); 21545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitDeclRefLValue(const DeclRefExpr *E); 21555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitStringLiteralLValue(const StringLiteral *E); 2156eaf2bb89eb2aad3b80673de30febe52df43c10ecChris Lattner LValue EmitObjCEncodeExprLValue(const ObjCEncodeExpr *E); 2157d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner LValue EmitPredefinedLValue(const PredefinedExpr *E); 21585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitUnaryOpLValue(const UnaryOperator *E); 21595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitArraySubscriptExpr(const ArraySubscriptExpr *E); 2160213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman LValue EmitExtVectorElementExpr(const ExtVectorElementExpr *E); 2161b84a06e68ffd71da22e3c75b6e4bbdba37816413Devang Patel LValue EmitMemberExpr(const MemberExpr *E); 2162820bca41c3899374775d2a1dfc2ef2e22aaf1c7bFariborz Jahanian LValue EmitObjCIsaExpr(const ObjCIsaExpr *E); 216306e863f2902b8ba55b056308875c19f7ba3dab25Eli Friedman LValue EmitCompoundLiteralLValue(const CompoundLiteralExpr *E); 216413ec9100ca6bc03b5ce8832e4a0fcb724d47bcb1Richard Smith LValue EmitInitListLValue(const InitListExpr *E); 216556ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall LValue EmitConditionalOperatorLValue(const AbstractConditionalOperator *E); 216675dfedaf702822c9e51a4f3c5d3ecf2d2ad99272Chris Lattner LValue EmitCastLValue(const CastExpr *E); 2167ed8abf18329df67b0abcbb3a10458bd8c1d2a595Douglas Gregor LValue EmitNullInitializationLValue(const CXXScalarValueInitExpr *E); 216803e80030515c800d1ab44125b9052dfffd1bd04cDouglas Gregor LValue EmitMaterializeTemporaryExpr(const MaterializeTemporaryExpr *E); 2169e996ffd240f20a1048179d7727a6ee3227261921John McCall LValue EmitOpaqueValueLValue(const OpaqueValueExpr *e); 21709cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 2171377ecc7996dce6803f7b7b6208cab5e197c9c5b8Eli Friedman RValue EmitRValueForField(LValue LV, const FieldDecl *FD); 2172eaf856db5d1a272dc7188937206ef4572836f82aAnton Korobeynikov 2173dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall class ConstantEmission { 2174dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall llvm::PointerIntPair<llvm::Constant*, 1, bool> ValueAndIsReference; 2175dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall ConstantEmission(llvm::Constant *C, bool isReference) 2176dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall : ValueAndIsReference(C, isReference) {} 2177dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall public: 2178dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall ConstantEmission() {} 2179dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall static ConstantEmission forReference(llvm::Constant *C) { 2180dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall return ConstantEmission(C, true); 2181dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall } 2182dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall static ConstantEmission forValue(llvm::Constant *C) { 2183dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall return ConstantEmission(C, false); 2184dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall } 2185dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall 2186dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall operator bool() const { return ValueAndIsReference.getOpaqueValue() != 0; } 2187dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall 2188dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall bool isReference() const { return ValueAndIsReference.getInt(); } 2189dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall LValue getReferenceLValue(CodeGenFunction &CGF, Expr *refExpr) const { 2190dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall assert(isReference()); 2191dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall return CGF.MakeNaturalAlignAddrLValue(ValueAndIsReference.getPointer(), 2192dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall refExpr->getType()); 2193dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall } 2194dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall 2195dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall llvm::Constant *getValue() const { 2196dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall assert(!isReference()); 2197dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall return ValueAndIsReference.getPointer(); 2198dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall } 2199dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall }; 2200dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall 2201f4b88a45902af1802a1cb42ba48b1c474474f228John McCall ConstantEmission tryEmitAsConstant(DeclRefExpr *refExpr); 2202dd2ecee313b558a9b621ec003b45e0fbc83508d7John McCall 22034b9c2d235fb9449e249d74f48ecfec601650de93John McCall RValue EmitPseudoObjectRValue(const PseudoObjectExpr *e, 22044b9c2d235fb9449e249d74f48ecfec601650de93John McCall AggValueSlot slot = AggValueSlot::ignored()); 22054b9c2d235fb9449e249d74f48ecfec601650de93John McCall LValue EmitPseudoObjectLValue(const PseudoObjectExpr *e); 22064b9c2d235fb9449e249d74f48ecfec601650de93John McCall 22072a03192a02dbf4fdff438d1e658356bde871aba4Daniel Dunbar llvm::Value *EmitIvarOffset(const ObjCInterfaceDecl *Interface, 220829e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar const ObjCIvarDecl *Ivar); 2209377ecc7996dce6803f7b7b6208cab5e197c9c5b8Eli Friedman LValue EmitLValueForField(LValue Base, const FieldDecl* Field); 22109cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 221106a2970e9480c6d02b367b2f970baff29b9f9721Anders Carlsson /// EmitLValueForFieldInitialization - Like EmitLValueForField, except that 221206a2970e9480c6d02b367b2f970baff29b9f9721Anders Carlsson /// if the Field is a reference, this will return the address of the reference 221306a2970e9480c6d02b367b2f970baff29b9f9721Anders Carlsson /// and not the address of the value stored in the reference. 2214377ecc7996dce6803f7b7b6208cab5e197c9c5b8Eli Friedman LValue EmitLValueForFieldInitialization(LValue Base, 2215377ecc7996dce6803f7b7b6208cab5e197c9c5b8Eli Friedman const FieldDecl* Field); 22169cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 221745012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian LValue EmitLValueForIvar(QualType ObjectTy, 221845012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian llvm::Value* Base, const ObjCIvarDecl *Ivar, 221929e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar unsigned CVRQualifiers); 2220fd64bb635dc221baa19f81d5d2a084f7eb269f7fFariborz Jahanian 2221b58d017f2b9eeed33f2ab3ede968b89cf5296bf2Anders Carlsson LValue EmitCXXConstructLValue(const CXXConstructExpr *E); 2222e61c9e80a108b5db7e5f0e702f0e455d737c6390Anders Carlsson LValue EmitCXXBindTemporaryLValue(const CXXBindTemporaryExpr *E); 222331a3702618ab49578542cffee20ba0c8859b9d1eEli Friedman LValue EmitLambdaLValue(const LambdaExpr *E); 2224c2e84ae9a6d25cea3e583c768e576b4c981ec028Mike Stump LValue EmitCXXTypeidLValue(const CXXTypeidExpr *E); 2225c5f804636e367ef744fd24cf88f7c956a5af0434Nico Weber LValue EmitCXXUuidofLValue(const CXXUuidofExpr *E); 22269cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 22270a04d77bde7e3a661c2b41b60630d125d09ed6efDaniel Dunbar LValue EmitObjCMessageExprLValue(const ObjCMessageExpr *E); 2228391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner LValue EmitObjCIvarRefLValue(const ObjCIvarRefExpr *E); 2229654599454c8e6cc83b1b9b3af43c49c2f66a26cbChris Lattner LValue EmitStmtExprLValue(const StmtExpr *E); 22308bfd31f9dad09cd52225d868bbd92a9bebe87775Fariborz Jahanian LValue EmitPointerToDataMemberBinaryExpr(const BinaryOperator *E); 223103b2960c14aede6ac82bdef32247094ebb72fa69Fariborz Jahanian LValue EmitObjCSelectorLValue(const ObjCSelectorExpr *E); 2232189d6ef40eff11b83b2cda941d5ed89a5cef09b2John McCall void EmitDeclRefExprDbgValue(const DeclRefExpr *E, llvm::Constant *Init); 223356ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall 22345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 2235883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner // Scalar Expression Emission 22365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 22375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 22380dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitCall - Generate a call of the given function, expecting the given 22390dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// result type, and using the given argument list which specifies both the 22400dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// LLVM arguments and the types they were derived from. 2241c0ef9f59937c3971c48b6fed37cf5bd8985c024bDaniel Dunbar /// 2242f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// \param TargetDecl - If given, the decl of the function in a direct call; 2243f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// used to set attributes on the call (noreturn, etc.). 224488b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar RValue EmitCall(const CGFunctionInfo &FnInfo, 224588b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar llvm::Value *Callee, 2246f3c47c9525153aea2de0ec4bd615b9cf2d81c103Anders Carlsson ReturnValueSlot ReturnValue, 2247c0ef9f59937c3971c48b6fed37cf5bd8985c024bDaniel Dunbar const CallArgList &Args, 2248dd5c98f709837e5dd3da08d44d1ce407975df2cfDavid Chisnall const Decl *TargetDecl = 0, 22494b02afcb45cd1a384de7d45f440a8be091dd500bDavid Chisnall llvm::Instruction **callOrInvoke = 0); 22501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 225131777a2540879051a3c643b90e02c3fd3d315243Anders Carlsson RValue EmitCall(QualType FnType, llvm::Value *Callee, 2252d2490a91341b57df7a7e54f8a707e7ecde2eeb4eAnders Carlsson ReturnValueSlot ReturnValue, 2253986477149db76e6d9f8d3c9859c9880c11b680aeAnders Carlsson CallExpr::const_arg_iterator ArgBeg, 2254986477149db76e6d9f8d3c9859c9880c11b680aeAnders Carlsson CallExpr::const_arg_iterator ArgEnd, 2255986477149db76e6d9f8d3c9859c9880c11b680aeAnders Carlsson const Decl *TargetDecl = 0); 22569cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer RValue EmitCallExpr(const CallExpr *E, 2257d2490a91341b57df7a7e54f8a707e7ecde2eeb4eAnders Carlsson ReturnValueSlot ReturnValue = ReturnValueSlot()); 22581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2259f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall llvm::CallSite EmitCallOrInvoke(llvm::Value *Callee, 22602d3ba4f5a923a90c3fc290ddfba5e36c2d0a9b46Chris Lattner ArrayRef<llvm::Value *> Args, 22618cc488fefb2fb04bc8d5398da29f0182f97934cfChris Lattner const Twine &Name = ""); 22624c7d9f1507d0f102bd4133bba63348636facd469Jay Foad llvm::CallSite EmitCallOrInvoke(llvm::Value *Callee, 22638cc488fefb2fb04bc8d5398da29f0182f97934cfChris Lattner const Twine &Name = ""); 2264f1549f66a8216a78112286e3978cea2c29d6334cJohn McCall 2265566abee1e9828a7700b51e4d17ea08234fde3bb4Anders Carlsson llvm::Value *BuildVirtualCall(const CXXMethodDecl *MD, llvm::Value *This, 22662acc6e3feda5e4f7d9009bdcf8b1cd777fecfe2dChris Lattner llvm::Type *Ty); 22679cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer llvm::Value *BuildVirtualCall(const CXXDestructorDecl *DD, CXXDtorType Type, 22682acc6e3feda5e4f7d9009bdcf8b1cd777fecfe2dChris Lattner llvm::Value *This, llvm::Type *Ty); 22692726267f094a0c1f5ac5b501ec5a9898c58876bfFariborz Jahanian llvm::Value *BuildAppleKextVirtualCall(const CXXMethodDecl *MD, 22702726267f094a0c1f5ac5b501ec5a9898c58876bfFariborz Jahanian NestedNameSpecifier *Qual, 22712acc6e3feda5e4f7d9009bdcf8b1cd777fecfe2dChris Lattner llvm::Type *Ty); 2272ccd5259d33cbbdd6f5fbf7ccab4cb4a2702309eaFariborz Jahanian 2273ccd5259d33cbbdd6f5fbf7ccab4cb4a2702309eaFariborz Jahanian llvm::Value *BuildAppleKextVirtualDestructorCall(const CXXDestructorDecl *DD, 2274ccd5259d33cbbdd6f5fbf7ccab4cb4a2702309eaFariborz Jahanian CXXDtorType Type, 2275771c678c04f5f685b4f188ec6c2fd88ad0f7457fFariborz Jahanian const CXXRecordDecl *RD); 2276566abee1e9828a7700b51e4d17ea08234fde3bb4Anders Carlsson 2277b9de2c55b2a33776e2bee8ee57df7599b374c8a5Anders Carlsson RValue EmitCXXMemberCall(const CXXMethodDecl *MD, 22784def70d3040e73707c738f7c366737a986135edfRichard Smith SourceLocation CallLoc, 2279b9de2c55b2a33776e2bee8ee57df7599b374c8a5Anders Carlsson llvm::Value *Callee, 2280a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson ReturnValueSlot ReturnValue, 2281b9de2c55b2a33776e2bee8ee57df7599b374c8a5Anders Carlsson llvm::Value *This, 2282c997d4278d329e18891aac9698fb991b2d4622ebAnders Carlsson llvm::Value *VTT, 2283b9de2c55b2a33776e2bee8ee57df7599b374c8a5Anders Carlsson CallExpr::const_arg_iterator ArgBeg, 2284b9de2c55b2a33776e2bee8ee57df7599b374c8a5Anders Carlsson CallExpr::const_arg_iterator ArgEnd); 2285a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson RValue EmitCXXMemberCallExpr(const CXXMemberCallExpr *E, 2286a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson ReturnValueSlot ReturnValue); 2287a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson RValue EmitCXXMemberPointerCallExpr(const CXXMemberCallExpr *E, 2288a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson ReturnValueSlot ReturnValue); 22895549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek 2290a2447e0d1e28669cd637204a871f15b1215277fdAnders Carlsson llvm::Value *EmitCXXOperatorMemberCallee(const CXXOperatorCallExpr *E, 2291a2447e0d1e28669cd637204a871f15b1215277fdAnders Carlsson const CXXMethodDecl *MD, 2292a2447e0d1e28669cd637204a871f15b1215277fdAnders Carlsson llvm::Value *This); 22930f294632f36459174199b77699e339715244b5abAnders Carlsson RValue EmitCXXOperatorMemberCallExpr(const CXXOperatorCallExpr *E, 2294a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson const CXXMethodDecl *MD, 2295a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson ReturnValueSlot ReturnValue); 22961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22976c0aa5ff6e6253db0f993053599e2a52b5b93b2dPeter Collingbourne RValue EmitCUDAKernelCallExpr(const CUDAKernelCallExpr *E, 22986c0aa5ff6e6253db0f993053599e2a52b5b93b2dPeter Collingbourne ReturnValueSlot ReturnValue); 22996c0aa5ff6e6253db0f993053599e2a52b5b93b2dPeter Collingbourne 23009cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 23011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump RValue EmitBuiltinExpr(const FunctionDecl *FD, 2302ef2abfee3ea16ec74942dc09e9e425f46aeb2582Daniel Dunbar unsigned BuiltinID, const CallExpr *E); 23035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2304a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson RValue EmitBlockCallExpr(const CallExpr *E, ReturnValueSlot ReturnValue); 230509429b962811f2c0a7a81a1b0a89f96f5878b20cMike Stump 23060dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitTargetBuiltinExpr - Emit the given builtin call. Returns 0 if the call 23070dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// is unhandled by the current target. 2308f02e9ddf5efc75917af712b3c7f909581205f0a5Daniel Dunbar llvm::Value *EmitTargetBuiltinExpr(unsigned BuiltinID, const CallExpr *E); 2309f02e9ddf5efc75917af712b3c7f909581205f0a5Daniel Dunbar 23102752c0137d95aa2f4ee1cdff4b564bac842e041bChris Lattner llvm::Value *EmitARMBuiltinExpr(unsigned BuiltinID, const CallExpr *E); 23119cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer llvm::Value *EmitNeonCall(llvm::Function *F, 2312686775deca8b8685eb90801495880e3abdd844c2Chris Lattner SmallVectorImpl<llvm::Value*> &O, 2313db3d4d036037f379f12643e067b229862d61e932Bob Wilson const char *name, 231461eecf5aea018ea65c9ab0bccacd2996b15c632dNate Begeman unsigned shift = 0, bool rightshift = false); 2315cf55652cf668c1402eee0b12edd2e5a1bc34d7a1Bob Wilson llvm::Value *EmitNeonSplat(llvm::Value *V, llvm::Constant *Idx); 23162acc6e3feda5e4f7d9009bdcf8b1cd777fecfe2dChris Lattner llvm::Value *EmitNeonShiftVector(llvm::Value *V, llvm::Type *Ty, 231761eecf5aea018ea65c9ab0bccacd2996b15c632dNate Begeman bool negateForRightShift); 23189cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 2319795b10062c2eaffae9e04241fb1a73cdbcb24a37Bill Wendling llvm::Value *BuildVector(ArrayRef<llvm::Value*> Ops); 2320564f1de67d7ba43646b8740db86d6269e3dfbe0bAnders Carlsson llvm::Value *EmitX86BuiltinExpr(unsigned BuiltinID, const CallExpr *E); 2321564f1de67d7ba43646b8740db86d6269e3dfbe0bAnders Carlsson llvm::Value *EmitPPCBuiltinExpr(unsigned BuiltinID, const CallExpr *E); 23220dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 2323ed7c618f849e2541b1d0288c43154937652c5b15Daniel Dunbar llvm::Value *EmitObjCProtocolExpr(const ObjCProtocolExpr *E); 23247f02f721d48772e4eee4fccd8af4f800be1bbc1eChris Lattner llvm::Value *EmitObjCStringLiteral(const ObjCStringLiteral *E); 2325eb382ec1507cf2c8c12d7443d0b67c076223aec6Patrick Beard llvm::Value *EmitObjCBoxedExpr(const ObjCBoxedExpr *E); 2326ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek llvm::Value *EmitObjCArrayLiteral(const ObjCArrayLiteral *E); 2327ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek llvm::Value *EmitObjCDictionaryLiteral(const ObjCDictionaryLiteral *E); 2328ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek llvm::Value *EmitObjCCollectionLiteral(const Expr *E, 2329ebcb57a8d298862c65043e88b2429591ab3c58d3Ted Kremenek const ObjCMethodDecl *MethodWithObjects); 23308fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner llvm::Value *EmitObjCSelectorExpr(const ObjCSelectorExpr *E); 2331ef072fd2f3347cfd857d6eb787b245b950771430John McCall RValue EmitObjCMessageExpr(const ObjCMessageExpr *E, 2332ef072fd2f3347cfd857d6eb787b245b950771430John McCall ReturnValueSlot Return = ReturnValueSlot()); 23338fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner 2334f85e193739c953358c865005855253af4f68a497John McCall /// Retrieves the default cleanup kind for an ARC cleanup. 2335f85e193739c953358c865005855253af4f68a497John McCall /// Except under -fobjc-arc-eh, ARC cleanups are normal-only. 2336f85e193739c953358c865005855253af4f68a497John McCall CleanupKind getARCCleanupKind() { 2337f85e193739c953358c865005855253af4f68a497John McCall return CGM.getCodeGenOpts().ObjCAutoRefCountExceptions 2338f85e193739c953358c865005855253af4f68a497John McCall ? NormalAndEHCleanup : NormalCleanup; 2339f85e193739c953358c865005855253af4f68a497John McCall } 2340f85e193739c953358c865005855253af4f68a497John McCall 2341f85e193739c953358c865005855253af4f68a497John McCall // ARC primitives. 2342f85e193739c953358c865005855253af4f68a497John McCall void EmitARCInitWeak(llvm::Value *value, llvm::Value *addr); 2343f85e193739c953358c865005855253af4f68a497John McCall void EmitARCDestroyWeak(llvm::Value *addr); 2344f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCLoadWeak(llvm::Value *addr); 2345f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCLoadWeakRetained(llvm::Value *addr); 2346f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCStoreWeak(llvm::Value *value, llvm::Value *addr, 2347f85e193739c953358c865005855253af4f68a497John McCall bool ignored); 2348f85e193739c953358c865005855253af4f68a497John McCall void EmitARCCopyWeak(llvm::Value *dst, llvm::Value *src); 2349f85e193739c953358c865005855253af4f68a497John McCall void EmitARCMoveWeak(llvm::Value *dst, llvm::Value *src); 2350f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCRetainAutorelease(QualType type, llvm::Value *value); 2351f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCRetainAutoreleaseNonBlock(llvm::Value *value); 2352545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall llvm::Value *EmitARCStoreStrong(LValue lvalue, llvm::Value *value, 2353545d996ec5a3113f046944f11b27cc2d6cb055b4John McCall bool ignored); 2354f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCStoreStrongCall(llvm::Value *addr, llvm::Value *value, 2355f85e193739c953358c865005855253af4f68a497John McCall bool ignored); 2356f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCRetain(QualType type, llvm::Value *value); 2357f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCRetainNonBlock(llvm::Value *value); 2358348f16fc7c71f0d9b651cb79fd1012843073493fJohn McCall llvm::Value *EmitARCRetainBlock(llvm::Value *value, bool mandatory); 2359015f33b6741ffceba3a71ee2d71d46418a7dc34cJohn McCall void EmitARCDestroyStrong(llvm::Value *addr, bool precise); 2360f85e193739c953358c865005855253af4f68a497John McCall void EmitARCRelease(llvm::Value *value, bool precise); 2361f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCAutorelease(llvm::Value *value); 2362f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCAutoreleaseReturnValue(llvm::Value *value); 2363f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCRetainAutoreleaseReturnValue(llvm::Value *value); 2364f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCRetainAutoreleasedReturnValue(llvm::Value *value); 2365f85e193739c953358c865005855253af4f68a497John McCall 2366f85e193739c953358c865005855253af4f68a497John McCall std::pair<LValue,llvm::Value*> 2367f85e193739c953358c865005855253af4f68a497John McCall EmitARCStoreAutoreleasing(const BinaryOperator *e); 2368f85e193739c953358c865005855253af4f68a497John McCall std::pair<LValue,llvm::Value*> 2369f85e193739c953358c865005855253af4f68a497John McCall EmitARCStoreStrong(const BinaryOperator *e, bool ignored); 2370f85e193739c953358c865005855253af4f68a497John McCall 23712b014d6c0c6b8ac94b416ac37dfc7931f20777a7John McCall llvm::Value *EmitObjCThrowOperand(const Expr *expr); 23722b014d6c0c6b8ac94b416ac37dfc7931f20777a7John McCall 2373f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitObjCProduceObject(QualType T, llvm::Value *Ptr); 2374f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitObjCConsumeObject(QualType T, llvm::Value *Ptr); 2375f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitObjCExtendObjectLifetime(QualType T, llvm::Value *Ptr); 2376f85e193739c953358c865005855253af4f68a497John McCall 2377348f16fc7c71f0d9b651cb79fd1012843073493fJohn McCall llvm::Value *EmitARCExtendBlockObject(const Expr *expr); 2378f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCRetainScalarExpr(const Expr *expr); 2379f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitARCRetainAutoreleaseScalarExpr(const Expr *expr); 2380f85e193739c953358c865005855253af4f68a497John McCall 2381bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall static Destroyer destroyARCStrongImprecise; 2382bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall static Destroyer destroyARCStrongPrecise; 2383bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall static Destroyer destroyARCWeak; 2384bdc4d80956c83a486e58d3df6bb524a1f66ff574John McCall 2385f85e193739c953358c865005855253af4f68a497John McCall void EmitObjCAutoreleasePoolPop(llvm::Value *Ptr); 2386f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitObjCAutoreleasePoolPush(); 2387f85e193739c953358c865005855253af4f68a497John McCall llvm::Value *EmitObjCMRRAutoreleasePoolPush(); 2388f85e193739c953358c865005855253af4f68a497John McCall void EmitObjCAutoreleasePoolCleanup(llvm::Value *Ptr); 2389f85e193739c953358c865005855253af4f68a497John McCall void EmitObjCMRRAutoreleasePoolPop(llvm::Value *Ptr); 2390f85e193739c953358c865005855253af4f68a497John McCall 23914029ca7ae9d3ffd7738fe2ed8782bebc30f36fd6Anders Carlsson /// EmitReferenceBindingToExpr - Emits a reference binding to the passed in 23924029ca7ae9d3ffd7738fe2ed8782bebc30f36fd6Anders Carlsson /// expression. Will emit a temporary variable if E is not an LValue. 23939cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer RValue EmitReferenceBindingToExpr(const Expr* E, 239432f36baa6c8d491c374af622b4e3ac28d597453cAnders Carlsson const NamedDecl *InitializedDecl); 23953aba09376c5f49c4c8d176109ea4835bc2c528eeAnders Carlsson 2396883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner //===--------------------------------------------------------------------===// 2397bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattner // Expression Emission 2398883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner //===--------------------------------------------------------------------===// 2399bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattner 2400bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattner // Expressions are broken into three classes: scalar, complex, aggregate. 24010dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 24020dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitScalarExpr - Emit the computation of the specified expression of LLVM 24030dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// scalar type, returning the result. 240414c5cbf59cffee52275230922283a247de407712Anders Carlsson llvm::Value *EmitScalarExpr(const Expr *E , bool IgnoreResultAssign = false); 24050dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 24063707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner /// EmitScalarConversion - Emit a conversion from the specified type to the 24073707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner /// specified destination type, both of which are LLVM scalar types. 24083707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner llvm::Value *EmitScalarConversion(llvm::Value *Src, QualType SrcTy, 24093707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner QualType DstTy); 24100dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 24114f1a7b380809b4ca19ad2daff61bc11cd1e979d8Chris Lattner /// EmitComplexToScalarConversion - Emit a conversion from the specified 24120dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// complex type to the specified destination type, where the destination type 24130dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// is an LLVM scalar type. 24144f1a7b380809b4ca19ad2daff61bc11cd1e979d8Chris Lattner llvm::Value *EmitComplexToScalarConversion(ComplexPairTy Src, QualType SrcTy, 24154f1a7b380809b4ca19ad2daff61bc11cd1e979d8Chris Lattner QualType DstTy); 24160dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 24170dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 2418558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// EmitAggExpr - Emit the computation of the specified expression 2419558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// of aggregate type. The result is computed into the given slot, 2420558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// which may be null to indicate that the value is not needed. 2421e0c1168ec7910a1a7ed08df4d4f0c58c2fa2ecd1John McCall void EmitAggExpr(const Expr *E, AggValueSlot AS); 24220dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 242318aba0dd518e486d8b50523e7dafb4b5657135d2Daniel Dunbar /// EmitAggExprToLValue - Emit the computation of the specified expression of 242418aba0dd518e486d8b50523e7dafb4b5657135d2Daniel Dunbar /// aggregate type into a temporary LValue. 242518aba0dd518e486d8b50523e7dafb4b5657135d2Daniel Dunbar LValue EmitAggExprToLValue(const Expr *E); 242618aba0dd518e486d8b50523e7dafb4b5657135d2Daniel Dunbar 2427082b02e8403d3ee9d2ded969fbe0e5d472f04cd8Fariborz Jahanian /// EmitGCMemmoveCollectable - Emit special API for structs with object 2428082b02e8403d3ee9d2ded969fbe0e5d472f04cd8Fariborz Jahanian /// pointers. 2429082b02e8403d3ee9d2ded969fbe0e5d472f04cd8Fariborz Jahanian void EmitGCMemmoveCollectable(llvm::Value *DestPtr, llvm::Value *SrcPtr, 243008c321380fff07d476a19daab6d29522c046cd49Fariborz Jahanian QualType Ty); 2431082b02e8403d3ee9d2ded969fbe0e5d472f04cd8Fariborz Jahanian 24320c24c808e4dce43e88abf2d5f98546b901bd4315John McCall /// EmitExtendGCLifetime - Given a pointer to an Objective-C object, 24330c24c808e4dce43e88abf2d5f98546b901bd4315John McCall /// make sure it survives garbage collection until this point. 24340c24c808e4dce43e88abf2d5f98546b901bd4315John McCall void EmitExtendGCLifetime(llvm::Value *object); 24350c24c808e4dce43e88abf2d5f98546b901bd4315John McCall 2436b6ef18a2b06d6760459e1756a61f79ff496cee19Chris Lattner /// EmitComplexExpr - Emit the computation of the specified expression of 243723b1cdb0b5e089468bb8475b8ec9287af67b4b59Chris Lattner /// complex type, returning the result. 2438b418d74c11498b7e1044103131e2e3be4d63512eJohn McCall ComplexPairTy EmitComplexExpr(const Expr *E, 2439b418d74c11498b7e1044103131e2e3be4d63512eJohn McCall bool IgnoreReal = false, 2440b418d74c11498b7e1044103131e2e3be4d63512eJohn McCall bool IgnoreImag = false); 24410dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 244223b1cdb0b5e089468bb8475b8ec9287af67b4b59Chris Lattner /// EmitComplexExprIntoAddr - Emit the computation of the specified expression 244323b1cdb0b5e089468bb8475b8ec9287af67b4b59Chris Lattner /// of complex type, storing into the specified Value*. 2444190dbe203c2e892ac40f1786035c6c9be3f44a4cChris Lattner void EmitComplexExprIntoAddr(const Expr *E, llvm::Value *DestAddr, 2445190dbe203c2e892ac40f1786035c6c9be3f44a4cChris Lattner bool DestIsVolatile); 24467f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar 24477f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar /// StoreComplexToAddr - Store a complex number into the specified address. 24487f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar void StoreComplexToAddr(ComplexPairTy V, llvm::Value *DestAddr, 24497f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar bool DestIsVolatile); 24509b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// LoadComplexFromAddr - Load a complex number from the specified address. 24519b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner ComplexPairTy LoadComplexFromAddr(llvm::Value *SrcAddr, bool SrcIsVolatile); 24522621fd1d6d3c5eadcae246859f62738645df7540Chris Lattner 2453b6bbcc9995186799a60ce17d0c1acff31601653aJohn McCall /// CreateStaticVarDecl - Create a zero-initialized LLVM global for 2454b6bbcc9995186799a60ce17d0c1acff31601653aJohn McCall /// a static local variable. 24550f30a12ce7b3d4d86c9ca9072f587da77c8eef34Chandler Carruth llvm::GlobalVariable *CreateStaticVarDecl(const VarDecl &D, 24560f30a12ce7b3d4d86c9ca9072f587da77c8eef34Chandler Carruth const char *Separator, 24570f30a12ce7b3d4d86c9ca9072f587da77c8eef34Chandler Carruth llvm::GlobalValue::LinkageTypes Linkage); 24589cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 24590f30a12ce7b3d4d86c9ca9072f587da77c8eef34Chandler Carruth /// AddInitializerToStaticVarDecl - Add the initializer for 'D' to the 24600f30a12ce7b3d4d86c9ca9072f587da77c8eef34Chandler Carruth /// global variable that has already been created for it. If the initializer 24610f30a12ce7b3d4d86c9ca9072f587da77c8eef34Chandler Carruth /// has a different type than GV does, this may free GV and return a different 24620f30a12ce7b3d4d86c9ca9072f587da77c8eef34Chandler Carruth /// one. Otherwise it just returns GV. 24630f30a12ce7b3d4d86c9ca9072f587da77c8eef34Chandler Carruth llvm::GlobalVariable * 24640f30a12ce7b3d4d86c9ca9072f587da77c8eef34Chandler Carruth AddInitializerToStaticVarDecl(const VarDecl &D, 24650f30a12ce7b3d4d86c9ca9072f587da77c8eef34Chandler Carruth llvm::GlobalVariable *GV); 24669cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 24670096acf421c4609ce7f43e8b05f8c5ca866d4611Daniel Dunbar 24683b2e16b3d25f6b311dba2871e2a566c96238c3d2Anders Carlsson /// EmitCXXGlobalVarDeclInit - Create the initializer for a C++ 24693b2e16b3d25f6b311dba2871e2a566c96238c3d2Anders Carlsson /// variable with global storage. 24707ca4850a3e3530fa6c93b64b740446e32c97f992Richard Smith void EmitCXXGlobalVarDeclInit(const VarDecl &D, llvm::Constant *DeclPtr, 24717ca4850a3e3530fa6c93b64b740446e32c97f992Richard Smith bool PerformInit); 24723b2e16b3d25f6b311dba2871e2a566c96238c3d2Anders Carlsson 247320bb175cb8ae5844034828db094fb948c0e3454aJohn McCall /// Call atexit() with a function that passes the given argument to 247420bb175cb8ae5844034828db094fb948c0e3454aJohn McCall /// the given function. 247520bb175cb8ae5844034828db094fb948c0e3454aJohn McCall void registerGlobalDtorWithAtExit(llvm::Constant *fn, llvm::Constant *addr); 24761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24773030eb82593097502469a8b3fc26112c79c75605John McCall /// Emit code in this function to perform a guarded variable 24783030eb82593097502469a8b3fc26112c79c75605John McCall /// initialization. Guarded initializations are used when it's not 24793030eb82593097502469a8b3fc26112c79c75605John McCall /// possible to prove that an initialization will be done exactly 24803030eb82593097502469a8b3fc26112c79c75605John McCall /// once, e.g. with a static local variable or a static data member 24813030eb82593097502469a8b3fc26112c79c75605John McCall /// of a class template. 24820f30a12ce7b3d4d86c9ca9072f587da77c8eef34Chandler Carruth void EmitCXXGuardedInit(const VarDecl &D, llvm::GlobalVariable *DeclPtr, 24837ca4850a3e3530fa6c93b64b740446e32c97f992Richard Smith bool PerformInit); 24845cd91b513455fd7753e8815b54f0a49bbca6602dJohn McCall 2485efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar /// GenerateCXXGlobalInitFunc - Generates code for initializing global 2486efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar /// variables. 2487efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar void GenerateCXXGlobalInitFunc(llvm::Function *Fn, 2488efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar llvm::Constant **Decls, 2489efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar unsigned NumDecls); 2490efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar 24913f88f686e32949ffe02ccb551f482f9cf810358bJohn McCall /// GenerateCXXGlobalDtorsFunc - Generates code for destroying global 2492efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar /// variables. 24933f88f686e32949ffe02ccb551f482f9cf810358bJohn McCall void GenerateCXXGlobalDtorsFunc(llvm::Function *Fn, 24943f88f686e32949ffe02ccb551f482f9cf810358bJohn McCall const std::vector<std::pair<llvm::WeakVH, 24953f88f686e32949ffe02ccb551f482f9cf810358bJohn McCall llvm::Constant*> > &DtorsAndObjects); 2496efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar 2497d26bc76c98006609002d9930f8840490e88ac5b5John McCall void GenerateCXXGlobalVarDeclInitFunc(llvm::Function *Fn, 2498d26bc76c98006609002d9930f8840490e88ac5b5John McCall const VarDecl *D, 24997ca4850a3e3530fa6c93b64b740446e32c97f992Richard Smith llvm::GlobalVariable *Addr, 25007ca4850a3e3530fa6c93b64b740446e32c97f992Richard Smith bool PerformInit); 2501efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar 2502558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall void EmitCXXConstructExpr(const CXXConstructExpr *E, AggValueSlot Dest); 250334999876e215b22febc240b1a6dc054215d12f9cFariborz Jahanian 250434999876e215b22febc240b1a6dc054215d12f9cFariborz Jahanian void EmitSynthesizedCXXCopyCtor(llvm::Value *Dest, llvm::Value *Src, 2505830937bc1100fba7682f7c32c40512085870f50cFariborz Jahanian const Expr *Exp); 25061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25071a343ebbf413e8eae6b2737b2b2d79cbf5765571John McCall void enterFullExpression(const ExprWithCleanups *E) { 25081a343ebbf413e8eae6b2737b2b2d79cbf5765571John McCall if (E->getNumObjects() == 0) return; 25091a343ebbf413e8eae6b2737b2b2d79cbf5765571John McCall enterNonTrivialFullExpression(E); 25101a343ebbf413e8eae6b2737b2b2d79cbf5765571John McCall } 25111a343ebbf413e8eae6b2737b2b2d79cbf5765571John McCall void enterNonTrivialFullExpression(const ExprWithCleanups *E); 25121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2513756b5c4f9d52642d87d1948bee58f97a4f795b24Anders Carlsson void EmitCXXThrowExpr(const CXXThrowExpr *E); 25141eb2e59338c4b9c0429fc39ca98662adc9e7a3f2Douglas Gregor 25154c5d8afd100189b6cce4fd89bfb8aec5700acb50Eli Friedman void EmitLambdaExpr(const LambdaExpr *E, AggValueSlot Dest); 25164c5d8afd100189b6cce4fd89bfb8aec5700acb50Eli Friedman 2517276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman RValue EmitAtomicExpr(AtomicExpr *E, llvm::Value *Dest = 0); 2518276b061970939293f1abaf694bd3ef05b2cbda79Eli Friedman 25190ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar //===--------------------------------------------------------------------===// 252077f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge // Annotations Emission 252177f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge //===--------------------------------------------------------------------===// 252277f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge 252377f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge /// Emit an annotation call (intrinsic or builtin). 252477f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge llvm::Value *EmitAnnotationCall(llvm::Value *AnnotationFn, 252577f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge llvm::Value *AnnotatedVal, 252677f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge llvm::StringRef AnnotationStr, 252777f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge SourceLocation Location); 252877f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge 252977f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge /// Emit local annotations for the local variable V, declared by D. 253077f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge void EmitVarAnnotations(const VarDecl *D, llvm::Value *V); 253177f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge 253277f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge /// Emit field annotations for the given field & value. Returns the 253377f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge /// annotation result. 253477f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge llvm::Value *EmitFieldAnnotations(const FieldDecl *D, llvm::Value *V); 253577f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge 253677f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge //===--------------------------------------------------------------------===// 25370ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar // Internal Helpers 25380ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar //===--------------------------------------------------------------------===// 25390dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 25400946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner /// ContainsLabel - Return true if the statement contains a label in it. If 25410946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner /// this statement is not executed normally, it not containing a label means 25420946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner /// that we can just remove the code. 25430946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner static bool ContainsLabel(const Stmt *S, bool IgnoreCaseStmts = false); 25440dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 2545ef425a69006afaa87751ee41ccf8ff405d9ede70Chris Lattner /// containsBreak - Return true if the statement contains a break out of it. 2546ef425a69006afaa87751ee41ccf8ff405d9ede70Chris Lattner /// If the statement (recursively) contains a switch or loop with a break 2547ef425a69006afaa87751ee41ccf8ff405d9ede70Chris Lattner /// inside of it, this is fine. 2548ef425a69006afaa87751ee41ccf8ff405d9ede70Chris Lattner static bool containsBreak(const Stmt *S); 2549ef425a69006afaa87751ee41ccf8ff405d9ede70Chris Lattner 25504bc0455d826e9634b7a68c0d06146edd633c9453Daniel Dunbar /// ConstantFoldsToSimpleInteger - If the specified expression does not fold 2551c2c90011a688c04a4e980282f08c267e081c4b00Chris Lattner /// to a constant, or if it does but contains a label, return false. If it 2552c2c90011a688c04a4e980282f08c267e081c4b00Chris Lattner /// constant folds return true and set the boolean result in Result. 2553c2c90011a688c04a4e980282f08c267e081c4b00Chris Lattner bool ConstantFoldsToSimpleInteger(const Expr *Cond, bool &Result); 25540dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 2555ef425a69006afaa87751ee41ccf8ff405d9ede70Chris Lattner /// ConstantFoldsToSimpleInteger - If the specified expression does not fold 2556ef425a69006afaa87751ee41ccf8ff405d9ede70Chris Lattner /// to a constant, or if it does but contains a label, return false. If it 2557ef425a69006afaa87751ee41ccf8ff405d9ede70Chris Lattner /// constant folds return true and set the folded value. 2558e1ecdc168175719d74e112bcacd4aae5e12d4631Richard Trieu bool ConstantFoldsToSimpleInteger(const Expr *Cond, llvm::APSInt &Result); 2559ef425a69006afaa87751ee41ccf8ff405d9ede70Chris Lattner 256031a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// EmitBranchOnBoolExpr - Emit a branch on a boolean condition (e.g. for an 256131a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// if statement) to the specified blocks. Based on the condition, this might 256231a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// try to simplify the codegen of the conditional based on the branch. 25639bc47e29dce8f095be7a6d07dbb02a5a7a112949Chris Lattner void EmitBranchOnBoolExpr(const Expr *Cond, llvm::BasicBlock *TrueBlock, 25644bc0455d826e9634b7a68c0d06146edd633c9453Daniel Dunbar llvm::BasicBlock *FalseBlock); 2565be07f60131bc6f8d6696f4644df1ef667a1730d5Mike Stump 25664def70d3040e73707c738f7c366737a986135edfRichard Smith /// \brief Emit a description of a type in a format suitable for passing to 25674def70d3040e73707c738f7c366737a986135edfRichard Smith /// a runtime sanitizer handler. 25684def70d3040e73707c738f7c366737a986135edfRichard Smith llvm::Constant *EmitCheckTypeDescriptor(QualType T); 25694def70d3040e73707c738f7c366737a986135edfRichard Smith 25704def70d3040e73707c738f7c366737a986135edfRichard Smith /// \brief Convert a value into a format suitable for passing to a runtime 25714def70d3040e73707c738f7c366737a986135edfRichard Smith /// sanitizer handler. 25724def70d3040e73707c738f7c366737a986135edfRichard Smith llvm::Value *EmitCheckValue(llvm::Value *V); 25734def70d3040e73707c738f7c366737a986135edfRichard Smith 25744def70d3040e73707c738f7c366737a986135edfRichard Smith /// \brief Emit a description of a source location in a format suitable for 25754def70d3040e73707c738f7c366737a986135edfRichard Smith /// passing to a runtime sanitizer handler. 25764def70d3040e73707c738f7c366737a986135edfRichard Smith llvm::Constant *EmitCheckSourceLocation(SourceLocation Loc); 25774def70d3040e73707c738f7c366737a986135edfRichard Smith 2578ad95481b2769ad61f23afc5e2c31f11c66090657Will Dietz /// \brief Specify under what conditions this check can be recovered 2579ad95481b2769ad61f23afc5e2c31f11c66090657Will Dietz enum CheckRecoverableKind { 2580ad95481b2769ad61f23afc5e2c31f11c66090657Will Dietz /// Always terminate program execution if this check fails 2581ad95481b2769ad61f23afc5e2c31f11c66090657Will Dietz CRK_Unrecoverable, 2582ad95481b2769ad61f23afc5e2c31f11c66090657Will Dietz /// Check supports recovering, allows user to specify which 2583ad95481b2769ad61f23afc5e2c31f11c66090657Will Dietz CRK_Recoverable, 2584ad95481b2769ad61f23afc5e2c31f11c66090657Will Dietz /// Runtime conditionally aborts, always need to support recovery. 2585ad95481b2769ad61f23afc5e2c31f11c66090657Will Dietz CRK_AlwaysRecoverable 2586ad95481b2769ad61f23afc5e2c31f11c66090657Will Dietz }; 2587ad95481b2769ad61f23afc5e2c31f11c66090657Will Dietz 2588cc305617e952f8c3a06b63d9225d0dd7769341b7Richard Smith /// \brief Create a basic block that will call a handler function in a 2589cc305617e952f8c3a06b63d9225d0dd7769341b7Richard Smith /// sanitizer runtime with the provided arguments, and create a conditional 2590cc305617e952f8c3a06b63d9225d0dd7769341b7Richard Smith /// branch to it. 25914def70d3040e73707c738f7c366737a986135edfRichard Smith void EmitCheck(llvm::Value *Checked, StringRef CheckName, 25924def70d3040e73707c738f7c366737a986135edfRichard Smith llvm::ArrayRef<llvm::Constant *> StaticArgs, 25938e1cee6f23e2552b96b81e5ef419ab3f69c5b5c2Richard Smith llvm::ArrayRef<llvm::Value *> DynamicArgs, 2594ad95481b2769ad61f23afc5e2c31f11c66090657Will Dietz CheckRecoverableKind Recoverable); 25959cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer 2596cc305617e952f8c3a06b63d9225d0dd7769341b7Richard Smith /// \brief Create a basic block that will call the trap intrinsic, and emit a 2597cc305617e952f8c3a06b63d9225d0dd7769341b7Richard Smith /// conditional branch to it, for the -ftrapv checks. 2598cc305617e952f8c3a06b63d9225d0dd7769341b7Richard Smith void EmitTrapvCheck(llvm::Value *Checked); 2599cc305617e952f8c3a06b63d9225d0dd7769341b7Richard Smith 260021c9ad9d29d08a287292c670e7c52bc522c7f8bbAnders Carlsson /// EmitCallArg - Emit a single call argument. 2601413ebdb1af6fb0d81845b61254daf02ba0449afdJohn McCall void EmitCallArg(CallArgList &args, const Expr *E, QualType ArgType); 260221c9ad9d29d08a287292c670e7c52bc522c7f8bbAnders Carlsson 26032736071ea3a46f90e65c93418961611d96c10ab9John McCall /// EmitDelegateCallArg - We are performing a delegate call; that 26042736071ea3a46f90e65c93418961611d96c10ab9John McCall /// is, the current function is delegating to another one. Produce 26052736071ea3a46f90e65c93418961611d96c10ab9John McCall /// a r-value suitable for passing the given parameter. 2606413ebdb1af6fb0d81845b61254daf02ba0449afdJohn McCall void EmitDelegateCallArg(CallArgList &args, const VarDecl *param); 26072736071ea3a46f90e65c93418961611d96c10ab9John McCall 2608c5096cbf7a42e0f9012945b00d9037a5b5a88d72Peter Collingbourne /// SetFPAccuracy - Set the minimum required accuracy of the given floating 2609c5096cbf7a42e0f9012945b00d9037a5b5a88d72Peter Collingbourne /// point operation, expressed as the maximum relative error in ulp. 26108250016fb9491fcfde7fce05230d66e267944484Duncan Sands void SetFPAccuracy(llvm::Value *Val, float Accuracy); 2611c5096cbf7a42e0f9012945b00d9037a5b5a88d72Peter Collingbourne 261231a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattnerprivate: 2613c3f8955d7da1019dbe16b0bdf3e49d2e08d988e9Rafael Espindola llvm::MDNode *getRangeForLoadFromType(QualType Ty); 261429e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar void EmitReturnOfRValue(RValue RV, QualType Ty); 261529e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar 26165627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// ExpandTypeFromArgs - Reconstruct a structure of type \arg Ty 26175627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// from function arguments into \arg Dst. See ABIArgInfo::Expand. 26185627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// 26195627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// \param AI - The first function argument of the expansion. 26205627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// \return The argument following the last expanded function 26215627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// argument. 26220dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump llvm::Function::arg_iterator 26235627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar ExpandTypeFromArgs(QualType Ty, LValue Dst, 26245627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar llvm::Function::arg_iterator AI); 26255627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar 26260dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// ExpandTypeToArgs - Expand an RValue \arg Src, with the LLVM type for \arg 26270dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// Ty, into individual arguments on the provided vector \arg Args. See 26280dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// ABIArgInfo::Expand. 26290dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump void ExpandTypeToArgs(QualType Ty, RValue Src, 2630686775deca8b8685eb90801495880e3abdd844c2Chris Lattner SmallVector<llvm::Value*, 16> &Args, 2631811bf3669f4d82c57fe3cd3c49050fdbc95d0affChris Lattner llvm::FunctionType *IRFuncTy); 2632c8c7b187adcd989e01a9fba1ebead6c2abd770c9Anders Carlsson 263342b60551eff3a424e191b293bfd606559dc96bffChad Rosier llvm::Value* EmitAsmInput(const TargetInfo::ConstraintInfo &Info, 2634c8c7b187adcd989e01a9fba1ebead6c2abd770c9Anders Carlsson const Expr *InputExpr, std::string &ConstraintStr); 26350dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 263642b60551eff3a424e191b293bfd606559dc96bffChad Rosier llvm::Value* EmitAsmInputLValue(const TargetInfo::ConstraintInfo &Info, 26376d7cfd7ef82e42ff30ee1dafd2883fd94e9f8294Eli Friedman LValue InputValue, QualType InputType, 26386d7cfd7ef82e42ff30ee1dafd2883fd94e9f8294Eli Friedman std::string &ConstraintStr); 26396d7cfd7ef82e42ff30ee1dafd2883fd94e9f8294Eli Friedman 26400139bb96494b4c4ba0824617d5d2495dc7e44c76Anders Carlsson /// EmitCallArgs - Emit call arguments for a function. 26411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// The CallArgTypeInfo parameter is used for iterating over the known 2642af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson /// argument types of the function being called. 2643af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson template<typename T> 2644af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson void EmitCallArgs(CallArgList& Args, const T* CallArgTypeInfo, 26450139bb96494b4c4ba0824617d5d2495dc7e44c76Anders Carlsson CallExpr::const_arg_iterator ArgBeg, 2646af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson CallExpr::const_arg_iterator ArgEnd) { 2647af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson CallExpr::const_arg_iterator Arg = ArgBeg; 2648af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson 2649af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson // First, use the argument types that the type info knows about 2650af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson if (CallArgTypeInfo) { 2651af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson for (typename T::arg_type_iterator I = CallArgTypeInfo->arg_type_begin(), 2652af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson E = CallArgTypeInfo->arg_type_end(); I != E; ++I, ++Arg) { 265344b0a3e858af7b19f489619e52cd58970611cd15Eli Friedman assert(Arg != ArgEnd && "Running over edge of argument list!"); 2654af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson QualType ArgType = *I; 2655745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian#ifndef NDEBUG 2656745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian QualType ActualArgType = Arg->getType(); 2657745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian if (ArgType->isPointerType() && ActualArgType->isPointerType()) { 26589cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer QualType ActualBaseType = 2659745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian ActualArgType->getAs<PointerType>()->getPointeeType(); 26609cac4942b920d4c5514e71949e3062ed626bfbdfMichael J. Spencer QualType ArgBaseType = 2661745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian ArgType->getAs<PointerType>()->getPointeeType(); 2662745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian if (ArgBaseType->isVariableArrayType()) { 2663745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian if (const VariableArrayType *VAT = 2664745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian getContext().getAsVariableArrayType(ActualBaseType)) { 2665745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian if (!VAT->getSizeExpr()) 2666745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian ActualArgType = ArgType; 2667745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian } 2668745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian } 2669745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian } 2670af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson assert(getContext().getCanonicalType(ArgType.getNonReferenceType()). 26711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getTypePtr() == 2672745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian getContext().getCanonicalType(ActualArgType).getTypePtr() && 2673af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson "type mismatch in call argument!"); 2674745da3a5bb4ea35f93f50301e7fbbb7d78d3b6bbFariborz Jahanian#endif 2675413ebdb1af6fb0d81845b61254daf02ba0449afdJohn McCall EmitCallArg(Args, *Arg, ArgType); 2676af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson } 26771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Either we've emitted all the call args, or we have a call to a 2679af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson // variadic function. 26801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert((Arg == ArgEnd || CallArgTypeInfo->isVariadic()) && 2681af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson "Extra arguments in non-variadic function!"); 26821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2683af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson } 26841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2685af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson // If we still have any arguments, emit them using the type of the argument. 2686413ebdb1af6fb0d81845b61254daf02ba0449afdJohn McCall for (; Arg != ArgEnd; ++Arg) 2687413ebdb1af6fb0d81845b61254daf02ba0449afdJohn McCall EmitCallArg(Args, *Arg, Arg->getType()); 2688af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson } 2689492c4f998d848673d3d6c9e6416115df4036a71dJohn McCall 2690492c4f998d848673d3d6c9e6416115df4036a71dJohn McCall const TargetCodeGenInfo &getTargetHooks() const { 2691492c4f998d848673d3d6c9e6416115df4036a71dJohn McCall return CGM.getTargetCodeGenInfo(); 2692492c4f998d848673d3d6c9e6416115df4036a71dJohn McCall } 2693744016dde06fcffd50931e94a98c850f8b12cd87John McCall 2694744016dde06fcffd50931e94a98c850f8b12cd87John McCall void EmitDeclMetadata(); 2695f0c11f7e6848f023ced6a5b51399ba787c7d4d0bJohn McCall 2696f0c11f7e6848f023ced6a5b51399ba787c7d4d0bJohn McCall CodeGenModule::ByrefHelpers * 26972acc6e3feda5e4f7d9009bdcf8b1cd777fecfe2dChris Lattner buildByrefHelpers(llvm::StructType &byrefType, 2698f0c11f7e6848f023ced6a5b51399ba787c7d4d0bJohn McCall const AutoVarEmission &emission); 2699b49bd27b334a6c4e3bf9d810a7d5b022578f1194Dan Gohman 2700b49bd27b334a6c4e3bf9d810a7d5b022578f1194Dan Gohman void AddObjCARCExceptionMetadata(llvm::Instruction *Inst); 2701f4c3db175101cbf94dad59419c3ed7aed51bf606Jay Foad 2702ea93e40785ffeadfac66b948c95f9490ec26207aEli Friedman /// GetPointeeAlignment - Given an expression with a pointer type, emit the 2703ea93e40785ffeadfac66b948c95f9490ec26207aEli Friedman /// value and compute our best estimate of the alignment of the pointee. 2704ea93e40785ffeadfac66b948c95f9490ec26207aEli Friedman std::pair<llvm::Value*, unsigned> EmitPointerWithAlignment(const Expr *Addr); 27055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 27061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2707150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall/// Helper class with most of the code for saving a value for a 2708150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall/// conditional expression cleanup. 2709804b807ea918184d6de63bd745e1ff75a9bfc679John McCallstruct DominatingLLVMValue { 2710150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall typedef llvm::PointerIntPair<llvm::Value*, 1, bool> saved_type; 2711150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 2712150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// Answer whether the given value needs extra work to be saved. 2713150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall static bool needsSaving(llvm::Value *value) { 2714150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall // If it's not an instruction, we don't need to save. 2715150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall if (!isa<llvm::Instruction>(value)) return false; 2716150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 2717150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall // If it's an instruction in the entry block, we don't need to save. 2718150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall llvm::BasicBlock *block = cast<llvm::Instruction>(value)->getParent(); 2719150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall return (block != &block->getParent()->getEntryBlock()); 2720150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 2721150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 2722150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall /// Try to save the given value. 2723150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall static saved_type save(CodeGenFunction &CGF, llvm::Value *value) { 2724150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall if (!needsSaving(value)) return saved_type(value, false); 2725150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 2726150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall // Otherwise we need an alloca. 2727150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall llvm::Value *alloca = 2728150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall CGF.CreateTempAlloca(value->getType(), "cond-cleanup.save"); 2729150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall CGF.Builder.CreateStore(value, alloca); 2730150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 2731150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall return saved_type(alloca, true); 2732150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 2733150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 2734150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall static llvm::Value *restore(CodeGenFunction &CGF, saved_type value) { 2735150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall if (!value.getInt()) return value.getPointer(); 2736150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall return CGF.Builder.CreateLoad(value.getPointer()); 2737150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 2738150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall}; 2739150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 2740804b807ea918184d6de63bd745e1ff75a9bfc679John McCall/// A partial specialization of DominatingValue for llvm::Values that 2741804b807ea918184d6de63bd745e1ff75a9bfc679John McCall/// might be llvm::Instructions. 2742804b807ea918184d6de63bd745e1ff75a9bfc679John McCalltemplate <class T> struct DominatingPointer<T,true> : DominatingLLVMValue { 2743804b807ea918184d6de63bd745e1ff75a9bfc679John McCall typedef T *type; 2744804b807ea918184d6de63bd745e1ff75a9bfc679John McCall static type restore(CodeGenFunction &CGF, saved_type value) { 2745804b807ea918184d6de63bd745e1ff75a9bfc679John McCall return static_cast<T*>(DominatingLLVMValue::restore(CGF, value)); 2746804b807ea918184d6de63bd745e1ff75a9bfc679John McCall } 2747804b807ea918184d6de63bd745e1ff75a9bfc679John McCall}; 2748804b807ea918184d6de63bd745e1ff75a9bfc679John McCall 2749804b807ea918184d6de63bd745e1ff75a9bfc679John McCall/// A specialization of DominatingValue for RValue. 2750804b807ea918184d6de63bd745e1ff75a9bfc679John McCalltemplate <> struct DominatingValue<RValue> { 2751804b807ea918184d6de63bd745e1ff75a9bfc679John McCall typedef RValue type; 2752804b807ea918184d6de63bd745e1ff75a9bfc679John McCall class saved_type { 2753804b807ea918184d6de63bd745e1ff75a9bfc679John McCall enum Kind { ScalarLiteral, ScalarAddress, AggregateLiteral, 2754804b807ea918184d6de63bd745e1ff75a9bfc679John McCall AggregateAddress, ComplexAddress }; 2755804b807ea918184d6de63bd745e1ff75a9bfc679John McCall 2756804b807ea918184d6de63bd745e1ff75a9bfc679John McCall llvm::Value *Value; 2757804b807ea918184d6de63bd745e1ff75a9bfc679John McCall Kind K; 2758804b807ea918184d6de63bd745e1ff75a9bfc679John McCall saved_type(llvm::Value *v, Kind k) : Value(v), K(k) {} 2759804b807ea918184d6de63bd745e1ff75a9bfc679John McCall 2760804b807ea918184d6de63bd745e1ff75a9bfc679John McCall public: 2761804b807ea918184d6de63bd745e1ff75a9bfc679John McCall static bool needsSaving(RValue value); 2762804b807ea918184d6de63bd745e1ff75a9bfc679John McCall static saved_type save(CodeGenFunction &CGF, RValue value); 2763804b807ea918184d6de63bd745e1ff75a9bfc679John McCall RValue restore(CodeGenFunction &CGF); 2764804b807ea918184d6de63bd745e1ff75a9bfc679John McCall 2765804b807ea918184d6de63bd745e1ff75a9bfc679John McCall // implementations in CGExprCXX.cpp 2766804b807ea918184d6de63bd745e1ff75a9bfc679John McCall }; 2767804b807ea918184d6de63bd745e1ff75a9bfc679John McCall 2768804b807ea918184d6de63bd745e1ff75a9bfc679John McCall static bool needsSaving(type value) { 2769804b807ea918184d6de63bd745e1ff75a9bfc679John McCall return saved_type::needsSaving(value); 2770804b807ea918184d6de63bd745e1ff75a9bfc679John McCall } 2771804b807ea918184d6de63bd745e1ff75a9bfc679John McCall static saved_type save(CodeGenFunction &CGF, type value) { 2772804b807ea918184d6de63bd745e1ff75a9bfc679John McCall return saved_type::save(CGF, value); 2773804b807ea918184d6de63bd745e1ff75a9bfc679John McCall } 2774150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall static type restore(CodeGenFunction &CGF, saved_type value) { 2775804b807ea918184d6de63bd745e1ff75a9bfc679John McCall return value.restore(CGF); 2776150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall } 2777150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall}; 2778150b462afc7a713edd19bcbbbb22381fe060d4f5John McCall 27795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace CodeGen 27805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace clang 27814e1524babb095e70de1da882573eb6fbee98a857Fariborz Jahanian 27825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#endif 2783