CodeGenFunction.h revision 3aba09376c5f49c4c8d176109ea4835bc2c528ee
1bd012ff1fa088181646a784f385b28867372d434Daniel Dunbar//===-- CodeGenFunction.h - Per-Function state for LLVM CodeGen -*- C++ -*-===// 25f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 35f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// The LLVM Compiler Infrastructure 45f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 50bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// This file is distributed under the University of Illinois Open Source 60bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// License. See LICENSE.TXT for details. 75f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 85f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 95f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 100dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump// This is the internal per-function state used for llvm translation. 115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14ef52a2fb2ace36c92f88c6e125bd7defa17dafa5Chris Lattner#ifndef CLANG_CODEGEN_CODEGENFUNCTION_H 15ef52a2fb2ace36c92f88c6e125bd7defa17dafa5Chris Lattner#define CLANG_CODEGEN_CODEGENFUNCTION_H 165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 17391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner#include "clang/AST/Type.h" 18e3a09e6ad09f8d1387ecaa008aaf85527909da0aArgyrios Kyrtzidis#include "clang/AST/ExprCXX.h" 195549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek#include "clang/AST/ExprObjC.h" 20199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck#include "clang/AST/CharUnits.h" 21481769b5dc102b0256b35581e787909ad5edfab5Chris Lattner#include "clang/Basic/TargetInfo.h" 22481769b5dc102b0256b35581e787909ad5edfab5Chris Lattner#include "llvm/ADT/DenseMap.h" 23481769b5dc102b0256b35581e787909ad5edfab5Chris Lattner#include "llvm/ADT/SmallVector.h" 24481769b5dc102b0256b35581e787909ad5edfab5Chris Lattner#include "llvm/Support/ValueHandle.h" 250ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar#include <map> 2669243825cb5c91ec7207256aa57ae327cfaf8cb2Owen Anderson#include "CodeGenModule.h" 2796bd13ae1ab89f5a04b3ad3ec8ec1864cbba3482Mike Stump#include "CGBlocks.h" 2845d196b8387dcefc4df26cda114fa34c6528e928Daniel Dunbar#include "CGBuilder.h" 290dbe227feccf6a8dbadfff8ca3f80416b7bf2f28Daniel Dunbar#include "CGCall.h" 30b14095aa98c6fedd3625920c4ce834bcaf24d9f7Anders Carlsson#include "CGCXX.h" 318f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar#include "CGValue.h" 328f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar 335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace llvm { 34c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class BasicBlock; 35f21efe9088a0b3eda1209d1706529f6cb2073092Benjamin Kramer class LLVMContext; 365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class Module; 37898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar class SwitchInst; 38259e9ccf882d11491ad149aec5e6d7a061c9f938Daniel Dunbar class Twine; 39ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar class Value; 405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace clang { 435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class ASTContext; 447267c1693abe7875b0c57268be05005ae013c6c9Anders Carlsson class CXXDestructorDecl; 456815e941998659a55c20c147861b0f437928c3d8Anders Carlsson class CXXTryStmt; 465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class Decl; 47c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class EnumConstantDecl; 485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class FunctionDecl; 4972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor class FunctionProtoType; 50c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class LabelStmt; 51679a502d462ef819e6175b58e255ca3f3391e7cfFariborz Jahanian class ObjCContainerDecl; 5229e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar class ObjCInterfaceDecl; 5329e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar class ObjCIvarDecl; 54391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner class ObjCMethodDecl; 55fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian class ObjCImplementationDecl; 56af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar class ObjCPropertyImplDecl; 575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class TargetInfo; 58c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class VarDecl; 5916f0049415ec596504891259e2a83e19871c0d52Chris Lattner class ObjCForCollectionStmt; 6016f0049415ec596504891259e2a83e19871c0d52Chris Lattner class ObjCAtTryStmt; 6116f0049415ec596504891259e2a83e19871c0d52Chris Lattner class ObjCAtThrowStmt; 6216f0049415ec596504891259e2a83e19871c0d52Chris Lattner class ObjCAtSynchronizedStmt; 635549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek 645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace CodeGen { 655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class CodeGenModule; 66b84a06e68ffd71da22e3c75b6e4bbdba37816413Devang Patel class CodeGenTypes; 67e896d98548b02223c7740d807a0aa6e20fba7079Anders Carlsson class CGDebugInfo; 68bb36d331f439f49859efcfb4435c61762fbba6f9Daniel Dunbar class CGFunctionInfo; 690dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump class CGRecordLayout; 700dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// CodeGenFunction - This class organizes the per-function state that is used 725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// while generating LLVM code. 732a998148a6823c44d67da347c95eb2ea21f6b986Mike Stumpclass CodeGenFunction : public BlockFunction { 748a219ceda2b5afd447e7199b9c53079bead31b89Anders Carlsson CodeGenFunction(const CodeGenFunction&); // DO NOT IMPLEMENT 758a219ceda2b5afd447e7199b9c53079bead31b89Anders Carlsson void operator=(const CodeGenFunction&); // DO NOT IMPLEMENT 76bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattnerpublic: 775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CodeGenModule &CGM; // Per-module state. 78444be7366d0a1e172c0290a1ea54c1cb16b5947cDaniel Dunbar const TargetInfo &Target; 790dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 8058dee10ed2eee34035f62d1c2d32b3639e9182f8Chris Lattner typedef std::pair<llvm::Value *, llvm::Value *> ComplexPairTy; 8145d196b8387dcefc4df26cda114fa34c6528e928Daniel Dunbar CGBuilderTy Builder; 820dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 83b5437d238752dc297e42410e98d38d5250fe0463Chris Lattner /// CurFuncDecl - Holds the Decl for the current function or ObjC method. 84b5437d238752dc297e42410e98d38d5250fe0463Chris Lattner /// This excludes BlockDecls. 854111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner const Decl *CurFuncDecl; 86b5437d238752dc297e42410e98d38d5250fe0463Chris Lattner /// CurCodeDecl - This is the inner-most code context, which includes blocks. 87b5437d238752dc297e42410e98d38d5250fe0463Chris Lattner const Decl *CurCodeDecl; 8888b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar const CGFunctionInfo *CurFnInfo; 89391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner QualType FnRetTy; 905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::Function *CurFn; 915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 926a1e0eb557d47e85185e09bdf8721f53f4bf9c9cMike Stump /// CurGD - The GlobalDecl for the current function being compiled. 936a1e0eb557d47e85185e09bdf8721f53f4bf9c9cMike Stump GlobalDecl CurGD; 946a1e0eb557d47e85185e09bdf8721f53f4bf9c9cMike Stump /// OuterTryBlock - This is the address of the outter most try block, 0 956a1e0eb557d47e85185e09bdf8721f53f4bf9c9cMike Stump /// otherwise. 966a1e0eb557d47e85185e09bdf8721f53f4bf9c9cMike Stump const Stmt *OuterTryBlock; 976a1e0eb557d47e85185e09bdf8721f53f4bf9c9cMike Stump 985ca2084cf9b529563209429857f01fdae9dcdfa5Daniel Dunbar /// ReturnBlock - Unified return block. 995ca2084cf9b529563209429857f01fdae9dcdfa5Daniel Dunbar llvm::BasicBlock *ReturnBlock; 1000dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// ReturnValue - The temporary alloca to hold the return value. This is null 1010dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// iff the function has no return value. 102b17daf9ab790ae71aacad2cc4aa11cd8d86c25d1Eli Friedman llvm::Value *ReturnValue; 1030dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// AllocaInsertPoint - This is an instruction in the entry block before which 1055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// we prefer to insert allocas. 106481769b5dc102b0256b35581e787909ad5edfab5Chris Lattner llvm::AssertingVH<llvm::Instruction> AllocaInsertPt; 1070ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar 1085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const llvm::Type *LLVMIntTy; 1097b66000bdfc2684351fb03208e672f23012ed569Hartmut Kaiser uint32_t LLVMPointerWidth; 11018ccc7776ad6288c5f630dc7967fb99d099c9cd9Daniel Dunbar 111d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump bool Exceptions; 1129c276ae0f24d4cee8f7954069d4b8eae45d0447dMike Stump bool CatchUndefined; 11318ccc7776ad6288c5f630dc7967fb99d099c9cd9Daniel Dunbarpublic: 114fa1f756f88f4e6f3da2673082fdc1e8f54bccd6fAnders Carlsson /// ObjCEHValueStack - Stack of Objective-C exception values, used for 115fa1f756f88f4e6f3da2673082fdc1e8f54bccd6fAnders Carlsson /// rethrows. 116273558fbd891a0872e620e0d3d109b92c1160d72Anders Carlsson llvm::SmallVector<llvm::Value*, 8> ObjCEHValueStack; 1170dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1186fc559136b8ef98bfb824a0fd49df385405f2879Anders Carlsson /// PushCleanupBlock - Push a new cleanup entry on the stack and set the 1196fc559136b8ef98bfb824a0fd49df385405f2879Anders Carlsson /// passed in block as the cleanup block. 1207799621ad7d16f3c6a1aeda024312d63ecd77777Fariborz Jahanian void PushCleanupBlock(llvm::BasicBlock *CleanupEntryBlock, 121d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump llvm::BasicBlock *CleanupExitBlock, 122d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump llvm::BasicBlock *PreviousInvokeDest, 12399533834ba8f3658559f334e68a518ebb6388ceaMike Stump bool EHOnly = false); 124d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump void PushCleanupBlock(llvm::BasicBlock *CleanupEntryBlock) { 125d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump PushCleanupBlock(CleanupEntryBlock, 0, getInvokeDest(), false); 126d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump } 127bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson 1280dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// CleanupBlockInfo - A struct representing a popped cleanup block. 129bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson struct CleanupBlockInfo { 1307799621ad7d16f3c6a1aeda024312d63ecd77777Fariborz Jahanian /// CleanupEntryBlock - the cleanup entry block 131bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson llvm::BasicBlock *CleanupBlock; 1320dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1330dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// SwitchBlock - the block (if any) containing the switch instruction used 1340dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// for jumping to the final destination. 135bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson llvm::BasicBlock *SwitchBlock; 1360dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 137bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson /// EndBlock - the default destination for the switch instruction. 138bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson llvm::BasicBlock *EndBlock; 1390dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 14099533834ba8f3658559f334e68a518ebb6388ceaMike Stump /// EHOnly - True iff this cleanup should only be performed on the 14199533834ba8f3658559f334e68a518ebb6388ceaMike Stump /// exceptional edge. 14299533834ba8f3658559f334e68a518ebb6388ceaMike Stump bool EHOnly; 14399533834ba8f3658559f334e68a518ebb6388ceaMike Stump 1440dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump CleanupBlockInfo(llvm::BasicBlock *cb, llvm::BasicBlock *sb, 14599533834ba8f3658559f334e68a518ebb6388ceaMike Stump llvm::BasicBlock *eb, bool ehonly = false) 14699533834ba8f3658559f334e68a518ebb6388ceaMike Stump : CleanupBlock(cb), SwitchBlock(sb), EndBlock(eb), EHOnly(ehonly) {} 147bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson }; 148bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson 149d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump /// EHCleanupBlock - RAII object that will create a cleanup block for the 150d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump /// exceptional edge and set the insert point to that block. When destroyed, 151d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump /// it creates the cleanup edge and sets the insert point to the previous 152d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump /// block. 153d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump class EHCleanupBlock { 154d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump CodeGenFunction& CGF; 155d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump llvm::BasicBlock *Cont; 156d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump llvm::BasicBlock *CleanupHandler; 157d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump llvm::BasicBlock *CleanupEntryBB; 158d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump llvm::BasicBlock *PreviousInvokeDest; 159d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump public: 160d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump EHCleanupBlock(CodeGenFunction &cgf) 161d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump : CGF(cgf), Cont(CGF.createBasicBlock("cont")), 162d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump CleanupHandler(CGF.createBasicBlock("ehcleanup")), 163d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump CleanupEntryBB(CGF.createBasicBlock("ehcleanup.rest")), 164d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump PreviousInvokeDest(CGF.getInvokeDest()) { 165d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump CGF.EmitBranch(Cont); 16620d3a53cef96ed1d42ec82a313e8453cfef6512bMike Stump llvm::BasicBlock *TerminateHandler = CGF.getTerminateHandler(); 167d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump CGF.Builder.SetInsertPoint(CleanupEntryBB); 16820d3a53cef96ed1d42ec82a313e8453cfef6512bMike Stump CGF.setInvokeDest(TerminateHandler); 169d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump } 170d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump ~EHCleanupBlock(); 171d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump }; 172d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump 173bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson /// PopCleanupBlock - Will pop the cleanup entry on the stack, process all 1740dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// branch fixups and return a block info struct with the switch block and end 175d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump /// block. This will also reset the invoke handler to the previous value 176d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump /// from when the cleanup block was created. 177bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson CleanupBlockInfo PopCleanupBlock(); 1780dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 179f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// DelayedCleanupBlock - RAII object that will create a cleanup block and set 180f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// the insert point to that block. When destructed, it sets the insert point 181f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// to the previous block and pushes a new cleanup entry on the stack. 182d5782d5013ef5dbe033d1c3d1334e01c5996e06bDouglas Gregor class DelayedCleanupBlock { 1830d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson CodeGenFunction& CGF; 1840d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson llvm::BasicBlock *CurBB; 1857799621ad7d16f3c6a1aeda024312d63ecd77777Fariborz Jahanian llvm::BasicBlock *CleanupEntryBB; 1867799621ad7d16f3c6a1aeda024312d63ecd77777Fariborz Jahanian llvm::BasicBlock *CleanupExitBB; 187d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump llvm::BasicBlock *CurInvokeDest; 18899533834ba8f3658559f334e68a518ebb6388ceaMike Stump bool EHOnly; 1897799621ad7d16f3c6a1aeda024312d63ecd77777Fariborz Jahanian 1900d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson public: 19199533834ba8f3658559f334e68a518ebb6388ceaMike Stump DelayedCleanupBlock(CodeGenFunction &cgf, bool ehonly = false) 1927799621ad7d16f3c6a1aeda024312d63ecd77777Fariborz Jahanian : CGF(cgf), CurBB(CGF.Builder.GetInsertBlock()), 193d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump CleanupEntryBB(CGF.createBasicBlock("cleanup")), CleanupExitBB(0), 194d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump CurInvokeDest(CGF.getInvokeDest()), 195d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump EHOnly(ehonly) { 1967799621ad7d16f3c6a1aeda024312d63ecd77777Fariborz Jahanian CGF.Builder.SetInsertPoint(CleanupEntryBB); 1970d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson } 1980dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1997799621ad7d16f3c6a1aeda024312d63ecd77777Fariborz Jahanian llvm::BasicBlock *getCleanupExitBlock() { 2007799621ad7d16f3c6a1aeda024312d63ecd77777Fariborz Jahanian if (!CleanupExitBB) 2017799621ad7d16f3c6a1aeda024312d63ecd77777Fariborz Jahanian CleanupExitBB = CGF.createBasicBlock("cleanup.exit"); 2027799621ad7d16f3c6a1aeda024312d63ecd77777Fariborz Jahanian return CleanupExitBB; 2037799621ad7d16f3c6a1aeda024312d63ecd77777Fariborz Jahanian } 2047799621ad7d16f3c6a1aeda024312d63ecd77777Fariborz Jahanian 205d5782d5013ef5dbe033d1c3d1334e01c5996e06bDouglas Gregor ~DelayedCleanupBlock() { 206d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump CGF.PushCleanupBlock(CleanupEntryBB, CleanupExitBB, CurInvokeDest, 207d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump EHOnly); 208d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar // FIXME: This is silly, move this into the builder. 209d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar if (CurBB) 210d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar CGF.Builder.SetInsertPoint(CurBB); 211d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar else 212d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar CGF.Builder.ClearInsertionPoint(); 2130d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson } 2140d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson }; 2150d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson 21601234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor /// \brief Enters a new scope for capturing cleanups, all of which will be 21701234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor /// executed once the scope is exited. 21801234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor class CleanupScope { 21901234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor CodeGenFunction& CGF; 22001234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor size_t CleanupStackDepth; 22101234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor bool OldDidCallStackSave; 2225656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor bool PerformCleanup; 22301234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor 22401234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor CleanupScope(const CleanupScope &); // DO NOT IMPLEMENT 22501234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor CleanupScope &operator=(const CleanupScope &); // DO NOT IMPLEMENT 22601234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor 22701234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor public: 22801234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor /// \brief Enter a new cleanup scope. 2295656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor explicit CleanupScope(CodeGenFunction &CGF) 2305656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor : CGF(CGF), PerformCleanup(true) 2315656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor { 23201234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor CleanupStackDepth = CGF.CleanupEntries.size(); 23301234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor OldDidCallStackSave = CGF.DidCallStackSave; 23401234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor } 23501234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor 23601234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor /// \brief Exit this cleanup scope, emitting any accumulated 23701234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor /// cleanups. 23801234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor ~CleanupScope() { 2395656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor if (PerformCleanup) { 2405656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor CGF.DidCallStackSave = OldDidCallStackSave; 2415656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor CGF.EmitCleanupBlocks(CleanupStackDepth); 2425656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor } 2435656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor } 2445656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor 2455656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor /// \brief Determine whether this scope requires any cleanups. 2465656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor bool requiresCleanups() const { 2475656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor return CGF.CleanupEntries.size() > CleanupStackDepth; 2485656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor } 2495656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor 2505656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor /// \brief Force the emission of cleanups now, instead of waiting 2515656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor /// until this object is destroyed. 2525656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor void ForceCleanup() { 2535656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor assert(PerformCleanup && "Already forced cleanup"); 25401234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor CGF.DidCallStackSave = OldDidCallStackSave; 25501234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor CGF.EmitCleanupBlocks(CleanupStackDepth); 2565656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor PerformCleanup = false; 25701234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor } 25801234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor }; 25901234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor 260c71c845fe77ee1f891d60232ec320912d88557eeAnders Carlsson /// EmitCleanupBlocks - Takes the old cleanup stack size and emits the cleanup 261c71c845fe77ee1f891d60232ec320912d88557eeAnders Carlsson /// blocks that have been added. 262c71c845fe77ee1f891d60232ec320912d88557eeAnders Carlsson void EmitCleanupBlocks(size_t OldCleanupStackSize); 263c71c845fe77ee1f891d60232ec320912d88557eeAnders Carlsson 26487eaf17cc88516277e4389dfa15df93ecfdce559Anders Carlsson /// EmitBranchThroughCleanup - Emit a branch from the current insert block 26587eaf17cc88516277e4389dfa15df93ecfdce559Anders Carlsson /// through the cleanup handling code (if any) and then on to \arg Dest. 26687eaf17cc88516277e4389dfa15df93ecfdce559Anders Carlsson /// 2670dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// FIXME: Maybe this should really be in EmitBranch? Don't we always want 26887eaf17cc88516277e4389dfa15df93ecfdce559Anders Carlsson /// this behavior for branches? 26987eaf17cc88516277e4389dfa15df93ecfdce559Anders Carlsson void EmitBranchThroughCleanup(llvm::BasicBlock *Dest); 2700dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 271a36bf8f74180e834c6bf2db867796fd5338495abAnders Carlsson /// StartConditionalBranch - Should be called before a conditional part of an 272a36bf8f74180e834c6bf2db867796fd5338495abAnders Carlsson /// expression is emitted. For example, before the RHS of the expression below 273a36bf8f74180e834c6bf2db867796fd5338495abAnders Carlsson /// is emitted: 2741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// 2751d8475067d5b62ed5a57ba93862e23f3096a8bddAnders Carlsson /// b && f(T()); 2761d8475067d5b62ed5a57ba93862e23f3096a8bddAnders Carlsson /// 277a36bf8f74180e834c6bf2db867796fd5338495abAnders Carlsson /// This is used to make sure that any temporaries created in the conditional 2781d8475067d5b62ed5a57ba93862e23f3096a8bddAnders Carlsson /// branch are only destroyed if the branch is taken. 279a36bf8f74180e834c6bf2db867796fd5338495abAnders Carlsson void StartConditionalBranch() { 280a36bf8f74180e834c6bf2db867796fd5338495abAnders Carlsson ++ConditionalBranchLevel; 281a36bf8f74180e834c6bf2db867796fd5338495abAnders Carlsson } 2821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 283a36bf8f74180e834c6bf2db867796fd5338495abAnders Carlsson /// FinishConditionalBranch - Should be called after a conditional part of an 284a36bf8f74180e834c6bf2db867796fd5338495abAnders Carlsson /// expression has been emitted. 285a36bf8f74180e834c6bf2db867796fd5338495abAnders Carlsson void FinishConditionalBranch() { 28608e9e453f40aff95a59bd67db49b8f050765e1f0Anders Carlsson assert(ConditionalBranchLevel != 0 && 28708e9e453f40aff95a59bd67db49b8f050765e1f0Anders Carlsson "Conditional branch mismatch!"); 28808e9e453f40aff95a59bd67db49b8f050765e1f0Anders Carlsson 289a36bf8f74180e834c6bf2db867796fd5338495abAnders Carlsson --ConditionalBranchLevel; 290a36bf8f74180e834c6bf2db867796fd5338495abAnders Carlsson } 2911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2927f02f721d48772e4eee4fccd8af4f800be1bbc1eChris Lattnerprivate: 293d9becd1846e2c72bf6ad283faa1b048f33dd3afeChris Lattner CGDebugInfo *DebugInfo; 29409429b962811f2c0a7a81a1b0a89f96f5878b20cMike Stump 295f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// IndirectBranch - The first time an indirect goto is seen we create a block 296f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// with an indirect branch. Every time we see the address of a label taken, 297f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// we add the label to the indirect goto. Every subsequent indirect goto is 298f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// codegen'd as a jump to the IndirectBranch's basic block. 299d9becd1846e2c72bf6ad283faa1b048f33dd3afeChris Lattner llvm::IndirectBrInst *IndirectBranch; 3000ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar 3010dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// LocalDeclMap - This keeps track of the LLVM allocas or globals for local C 3020dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// decls. 3035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::DenseMap<const Decl*, llvm::Value*> LocalDeclMap; 3045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// LabelMap - This keeps track of the LLVM basic block for each C label. 3065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::DenseMap<const LabelStmt*, llvm::BasicBlock*> LabelMap; 3070dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 3080dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // BreakContinueStack - This keeps track of where break and continue 309e4b6d342c29d5cb9d311756100df1603810fa892Anders Carlsson // statements should jump to. 310da13870e99fe33934b2122f06528a5063f78ae4cChris Lattner struct BreakContinue { 311e4b6d342c29d5cb9d311756100df1603810fa892Anders Carlsson BreakContinue(llvm::BasicBlock *bb, llvm::BasicBlock *cb) 312e4b6d342c29d5cb9d311756100df1603810fa892Anders Carlsson : BreakBlock(bb), ContinueBlock(cb) {} 3130dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 314da13870e99fe33934b2122f06528a5063f78ae4cChris Lattner llvm::BasicBlock *BreakBlock; 315da13870e99fe33934b2122f06528a5063f78ae4cChris Lattner llvm::BasicBlock *ContinueBlock; 3160dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump }; 317da13870e99fe33934b2122f06528a5063f78ae4cChris Lattner llvm::SmallVector<BreakContinue, 8> BreakContinueStack; 31818ccc7776ad6288c5f630dc7967fb99d099c9cd9Daniel Dunbar 3190dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// SwitchInsn - This is nearest current switch instruction. It is null if if 3200dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// current context is not in a switch. 32151b09f2c528c8460b5465c676173324e44176d62Devang Patel llvm::SwitchInst *SwitchInsn; 32251b09f2c528c8460b5465c676173324e44176d62Devang Patel 3230dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// CaseRangeBlock - This block holds if condition check for last case 32480fd5f96e6805ac43aab99faabd5b4c8b19551b7Devang Patel /// statement range in current switch instruction. 325c049e4f406a7f7179eba98659044a32508e53289Devang Patel llvm::BasicBlock *CaseRangeBlock; 326c049e4f406a7f7179eba98659044a32508e53289Devang Patel 3279834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar /// InvokeDest - This is the nearest exception target for calls 3289834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar /// which can unwind, when exceptions are being used. 3299834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar llvm::BasicBlock *InvokeDest; 3309834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar 3310dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // VLASizeMap - This keeps track of the associated size for each VLA type. 332bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman // We track this by the size expression rather than the type itself because 333bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman // in certain situations, like a const qualifier applied to an VLA typedef, 334bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman // multiple VLA types can share the same size expression. 3350dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // FIXME: Maybe this could be a stack of maps that is pushed/popped as we 3360dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // enter/leave scopes. 337bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman llvm::DenseMap<const Expr*, llvm::Value*> VLASizeMap; 3380dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 3394cc1a4703363ff940b6273aeef9d96a87edeb04bAnders Carlsson /// DidCallStackSave - Whether llvm.stacksave has been called. Used to avoid 3404cc1a4703363ff940b6273aeef9d96a87edeb04bAnders Carlsson /// calling llvm.stacksave for multiple VLAs in the same scope. 3414cc1a4703363ff940b6273aeef9d96a87edeb04bAnders Carlsson bool DidCallStackSave; 34209429b962811f2c0a7a81a1b0a89f96f5878b20cMike Stump 3436ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson struct CleanupEntry { 3447799621ad7d16f3c6a1aeda024312d63ecd77777Fariborz Jahanian /// CleanupEntryBlock - The block of code that does the actual cleanup. 3457799621ad7d16f3c6a1aeda024312d63ecd77777Fariborz Jahanian llvm::BasicBlock *CleanupEntryBlock; 3460dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 3477799621ad7d16f3c6a1aeda024312d63ecd77777Fariborz Jahanian /// CleanupExitBlock - The cleanup exit block. 3487799621ad7d16f3c6a1aeda024312d63ecd77777Fariborz Jahanian llvm::BasicBlock *CleanupExitBlock; 3497799621ad7d16f3c6a1aeda024312d63ecd77777Fariborz Jahanian 3506ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson /// Blocks - Basic blocks that were emitted in the current cleanup scope. 351bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson std::vector<llvm::BasicBlock *> Blocks; 3526ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson 3536ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson /// BranchFixups - Branch instructions to basic blocks that haven't been 3546ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson /// inserted into the current function yet. 355bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson std::vector<llvm::BranchInst *> BranchFixups; 3566ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson 357d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump /// PreviousInvokeDest - The invoke handler from the start of the cleanup 358d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump /// region. 359d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump llvm::BasicBlock *PreviousInvokeDest; 360d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump 36199533834ba8f3658559f334e68a518ebb6388ceaMike Stump /// EHOnly - Perform this only on the exceptional edge, not the main edge. 36299533834ba8f3658559f334e68a518ebb6388ceaMike Stump bool EHOnly; 36399533834ba8f3658559f334e68a518ebb6388ceaMike Stump 3647799621ad7d16f3c6a1aeda024312d63ecd77777Fariborz Jahanian explicit CleanupEntry(llvm::BasicBlock *CleanupEntryBlock, 365d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump llvm::BasicBlock *CleanupExitBlock, 366d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump llvm::BasicBlock *PreviousInvokeDest, 367d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump bool ehonly) 368d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump : CleanupEntryBlock(CleanupEntryBlock), 36999533834ba8f3658559f334e68a518ebb6388ceaMike Stump CleanupExitBlock(CleanupExitBlock), 370d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump PreviousInvokeDest(PreviousInvokeDest), 37199533834ba8f3658559f334e68a518ebb6388ceaMike Stump EHOnly(ehonly) {} 3726ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson }; 3730dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 3746ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson /// CleanupEntries - Stack of cleanup entries. 3756ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson llvm::SmallVector<CleanupEntry, 8> CleanupEntries; 3766ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson 377bd6fa3d032acd7eafc6c10827c41103df45beab7Anders Carlsson typedef llvm::DenseMap<llvm::BasicBlock*, size_t> BlockScopeMap; 378bd6fa3d032acd7eafc6c10827c41103df45beab7Anders Carlsson 379bd6fa3d032acd7eafc6c10827c41103df45beab7Anders Carlsson /// BlockScopes - Map of which "cleanup scope" scope basic blocks have. 380bd6fa3d032acd7eafc6c10827c41103df45beab7Anders Carlsson BlockScopeMap BlockScopes; 3810dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 382f6c56e2323c3f973253805a2f35629f3253ebed4Anders Carlsson /// CXXThisDecl - When generating code for a C++ member function, 383f6c56e2323c3f973253805a2f35629f3253ebed4Anders Carlsson /// this will hold the implicit 'this' declaration. 3842b77ba8bc7a842829ad9193816dc1d7d5e9c5be6Anders Carlsson ImplicitParamDecl *CXXThisDecl; 3851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 386f6c56e2323c3f973253805a2f35629f3253ebed4Anders Carlsson /// CXXVTTDecl - When generating code for a base object constructor or 387f6c56e2323c3f973253805a2f35629f3253ebed4Anders Carlsson /// base object destructor with virtual bases, this will hold the implicit 388f6c56e2323c3f973253805a2f35629f3253ebed4Anders Carlsson /// VTT parameter. 389f6c56e2323c3f973253805a2f35629f3253ebed4Anders Carlsson ImplicitParamDecl *CXXVTTDecl; 390f6c56e2323c3f973253805a2f35629f3253ebed4Anders Carlsson 391e8b5578fcc2a3ffb90986f95f2c9127a9a08e34bAnders Carlsson /// CXXLiveTemporaryInfo - Holds information about a live C++ temporary. 392e8b5578fcc2a3ffb90986f95f2c9127a9a08e34bAnders Carlsson struct CXXLiveTemporaryInfo { 393e8b5578fcc2a3ffb90986f95f2c9127a9a08e34bAnders Carlsson /// Temporary - The live temporary. 394e8b5578fcc2a3ffb90986f95f2c9127a9a08e34bAnders Carlsson const CXXTemporary *Temporary; 3951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 396e8b5578fcc2a3ffb90986f95f2c9127a9a08e34bAnders Carlsson /// ThisPtr - The pointer to the temporary. 397e8b5578fcc2a3ffb90986f95f2c9127a9a08e34bAnders Carlsson llvm::Value *ThisPtr; 3981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 399e8b5578fcc2a3ffb90986f95f2c9127a9a08e34bAnders Carlsson /// DtorBlock - The destructor block. 400e8b5578fcc2a3ffb90986f95f2c9127a9a08e34bAnders Carlsson llvm::BasicBlock *DtorBlock; 4011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 402f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// CondPtr - If this is a conditional temporary, this is the pointer to the 403f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// condition variable that states whether the destructor should be called 404f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// or not. 405e8b5578fcc2a3ffb90986f95f2c9127a9a08e34bAnders Carlsson llvm::Value *CondPtr; 4061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 407e8b5578fcc2a3ffb90986f95f2c9127a9a08e34bAnders Carlsson CXXLiveTemporaryInfo(const CXXTemporary *temporary, 408f4b8fea84a6b1ef74cf8fe572918439e34935e51Anders Carlsson llvm::Value *thisptr, llvm::BasicBlock *dtorblock, 409f4b8fea84a6b1ef74cf8fe572918439e34935e51Anders Carlsson llvm::Value *condptr) 4101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump : Temporary(temporary), ThisPtr(thisptr), DtorBlock(dtorblock), 411e8b5578fcc2a3ffb90986f95f2c9127a9a08e34bAnders Carlsson CondPtr(condptr) { } 412e8b5578fcc2a3ffb90986f95f2c9127a9a08e34bAnders Carlsson }; 4131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 414e8b5578fcc2a3ffb90986f95f2c9127a9a08e34bAnders Carlsson llvm::SmallVector<CXXLiveTemporaryInfo, 4> LiveTemporaries; 4151d8475067d5b62ed5a57ba93862e23f3096a8bddAnders Carlsson 416a36bf8f74180e834c6bf2db867796fd5338495abAnders Carlsson /// ConditionalBranchLevel - Contains the nesting level of the current 417a36bf8f74180e834c6bf2db867796fd5338495abAnders Carlsson /// conditional branch. This is used so that we know if a temporary should be 418a36bf8f74180e834c6bf2db867796fd5338495abAnders Carlsson /// destroyed conditionally. 419a36bf8f74180e834c6bf2db867796fd5338495abAnders Carlsson unsigned ConditionalBranchLevel; 4201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4217dfa4079f4b37507048b19bfc693d3b015d9dd11Anders Carlsson 4227dfa4079f4b37507048b19bfc693d3b015d9dd11Anders Carlsson /// ByrefValueInfoMap - For each __block variable, contains a pair of the LLVM 4237dfa4079f4b37507048b19bfc693d3b015d9dd11Anders Carlsson /// type as well as the field number that contains the actual data. 4247dfa4079f4b37507048b19bfc693d3b015d9dd11Anders Carlsson llvm::DenseMap<const ValueDecl *, std::pair<const llvm::Type *, 4257dfa4079f4b37507048b19bfc693d3b015d9dd11Anders Carlsson unsigned> > ByRefValueInfo; 4267dfa4079f4b37507048b19bfc693d3b015d9dd11Anders Carlsson 4277dfa4079f4b37507048b19bfc693d3b015d9dd11Anders Carlsson /// getByrefValueFieldNumber - Given a declaration, returns the LLVM field 4287dfa4079f4b37507048b19bfc693d3b015d9dd11Anders Carlsson /// number that holds the value. 4297dfa4079f4b37507048b19bfc693d3b015d9dd11Anders Carlsson unsigned getByRefValueLLVMField(const ValueDecl *VD) const; 430182f383db1782af752ecaf607fdff72a8542088bMike Stump 431182f383db1782af752ecaf607fdff72a8542088bMike Stump llvm::BasicBlock *TerminateHandler; 43215037caa1542bb810ad54c653aeb80f61df7b00cMike Stump llvm::BasicBlock *TrapBB; 433940670512d7c3d93389bb38a426abcb7ef44271eEli Friedman 434940670512d7c3d93389bb38a426abcb7ef44271eEli Friedman int UniqueAggrDestructorCount; 4355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 4365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CodeGenFunction(CodeGenModule &cgm); 4370dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 4385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ASTContext &getContext() const; 439e896d98548b02223c7740d807a0aa6e20fba7079Anders Carlsson CGDebugInfo *getDebugInfo() { return DebugInfo; } 4405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4419834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar llvm::BasicBlock *getInvokeDest() { return InvokeDest; } 4429834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar void setInvokeDest(llvm::BasicBlock *B) { InvokeDest = B; } 4439834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar 444a1cf15f4680e5cf39e72e28c5ea854fcba792e84Owen Anderson llvm::LLVMContext &getLLVMContext() { return VMContext; } 44569243825cb5c91ec7207256aa57ae327cfaf8cb2Owen Anderson 4469834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar //===--------------------------------------------------------------------===// 4479834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar // Objective-C 4489834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar //===--------------------------------------------------------------------===// 4499834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar 450391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner void GenerateObjCMethod(const ObjCMethodDecl *OMD); 451af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 4520dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump void StartObjCMethod(const ObjCMethodDecl *MD, 453679a502d462ef819e6175b58e255ca3f3391e7cfFariborz Jahanian const ObjCContainerDecl *CD); 454af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 4550dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// GenerateObjCGetter - Synthesize an Objective-C property getter function. 456fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian void GenerateObjCGetter(ObjCImplementationDecl *IMP, 457fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian const ObjCPropertyImplDecl *PID); 458af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 4590dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// GenerateObjCSetter - Synthesize an Objective-C property setter function 4600dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// for the given property. 461fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian void GenerateObjCSetter(ObjCImplementationDecl *IMP, 462fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian const ObjCPropertyImplDecl *PID); 463af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 4644e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump //===--------------------------------------------------------------------===// 4654e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump // Block Bits 4664e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump //===--------------------------------------------------------------------===// 4674e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump 4688a2b4b1c5b960710db95e9b296d9a600aee37c00Mike Stump llvm::Value *BuildBlockLiteralTmp(const BlockExpr *); 469a803b0e6ca0d1c71a0b3f5d7380da8bbacf2f983Mike Stump llvm::Constant *BuildDescriptorBlockDecl(bool BlockHasCopyDispose, 470199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck CharUnits Size, 4710892099dbc640720400a1d9decd2733a09d733e5Mike Stump const llvm::StructType *, 4720892099dbc640720400a1d9decd2733a09d733e5Mike Stump std::vector<HelperInfo> *); 4734e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump 474161d36de7ee686b09525bb919ad1b20592e499fcChris Lattner llvm::Function *GenerateBlockFunction(const BlockExpr *BExpr, 4754e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump const BlockInfo& Info, 4766cc88f78fd36d3511b89412b193494b3e423cbffMike Stump const Decl *OuterFuncDecl, 4777f28a9c37e67ae16396042ad9c085830969daf29Mike Stump llvm::DenseMap<const Decl*, llvm::Value*> ldm, 47830a8a272f091054ce92b9daa1992bcff887c3ee4Ken Dyck CharUnits &Size, CharUnits &Align, 47900470a1c4c44c5ed26bad9a38b4d3904b02d7a28Mike Stump llvm::SmallVector<const Expr *, 8> &subBlockDeclRefDecls, 48000470a1c4c44c5ed26bad9a38b4d3904b02d7a28Mike Stump bool &subBlockHasCopyDispose); 4814e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump 4826cc88f78fd36d3511b89412b193494b3e423cbffMike Stump void BlockForwardSelf(); 4834e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump llvm::Value *LoadBlockStruct(); 4844e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump 485199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck CharUnits AllocateBlockDecl(const BlockDeclRefExpr *E); 486a99038c0757a836c6faeeddaa5dfd249b32f6e9eMike Stump llvm::Value *GetAddrOfBlockDecl(const BlockDeclRefExpr *E); 4879ad5513b0f9d3999705659fb1aeb0e6c53455f43Anders Carlsson const llvm::Type *BuildByRefType(const ValueDecl *D); 488dab514fc30242c7afd6c03956e46136c400fb0d3Mike Stump 4890ff8bafde95f6fa51ccea70738c1b99db870bddcAnders Carlsson void GenerateCode(GlobalDecl GD, llvm::Function *Fn); 4900ff8bafde95f6fa51ccea70738c1b99db870bddcAnders Carlsson void StartFunction(GlobalDecl GD, QualType RetTy, 4917c086516f3cc9fba2733b1919973206c6ba4b171Daniel Dunbar llvm::Function *Fn, 4922284ac9ec80299fcdefae9a2787cf85105a0f203Daniel Dunbar const FunctionArgList &Args, 4932284ac9ec80299fcdefae9a2787cf85105a0f203Daniel Dunbar SourceLocation StartLoc); 494a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 4950dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitReturnBlock - Emit the unified return block, trying to avoid its 4960dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// emission when possible. 4971c1d6074f5a0296dd273362655b1b8f9057289e3Daniel Dunbar void EmitReturnBlock(); 4981c1d6074f5a0296dd273362655b1b8f9057289e3Daniel Dunbar 4990dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// FinishFunction - Complete IR generation of the current function. It is 5000dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// legal to call this function even if there is no current insertion point. 501af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar void FinishFunction(SourceLocation EndLoc=SourceLocation()); 50217b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar 503c902d22129322731607988dafb8cd7f708eb75b1Mike Stump /// DynamicTypeAdjust - Do the non-virtual and virtual adjustments on an 504c902d22129322731607988dafb8cd7f708eb75b1Mike Stump /// object pointer to alter the dynamic type of the pointer. Used by 505c902d22129322731607988dafb8cd7f708eb75b1Mike Stump /// GenerateCovariantThunk for building thunks. 5067622cd3410846d28862ecfe862117894a259a7faAnders Carlsson llvm::Value *DynamicTypeAdjust(llvm::Value *V, 5077622cd3410846d28862ecfe862117894a259a7faAnders Carlsson const ThunkAdjustment &Adjustment); 508c902d22129322731607988dafb8cd7f708eb75b1Mike Stump 509ed032eb5c18b99528cbd76415337b6056a72b911Mike Stump /// GenerateThunk - Generate a thunk for the given method 51035c98cc4c00efcfe47ad0b716e7c50afb9c5ff75Eli Friedman llvm::Constant *GenerateThunk(llvm::Function *Fn, GlobalDecl GD, 511a94822e8937eeb340a653b88024f805a07a2d2eeAnders Carlsson bool Extern, 512a94822e8937eeb340a653b88024f805a07a2d2eeAnders Carlsson const ThunkAdjustment &ThisAdjustment); 5137622cd3410846d28862ecfe862117894a259a7faAnders Carlsson llvm::Constant * 51435c98cc4c00efcfe47ad0b716e7c50afb9c5ff75Eli Friedman GenerateCovariantThunk(llvm::Function *Fn, GlobalDecl GD, 5157622cd3410846d28862ecfe862117894a259a7faAnders Carlsson bool Extern, 5167622cd3410846d28862ecfe862117894a259a7faAnders Carlsson const CovariantThunkAdjustment &Adjustment); 517ed032eb5c18b99528cbd76415337b6056a72b911Mike Stump 518de1d26b9c1d8823b173e4d77015ad88b4da70559Anders Carlsson void EmitCtorPrologue(const CXXConstructorDecl *CD, CXXCtorType Type); 5191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 52077a259c6dbf582949af8a243b472c0c7faa373a6Eli Friedman void InitializeVtablePtrs(const CXXRecordDecl *ClassDecl); 52177a259c6dbf582949af8a243b472c0c7faa373a6Eli Friedman 522e12e77bed10f87bdc7305d0dbd1de89e48f280c1Eli Friedman void InitializeVtablePtrsRecursive(const CXXRecordDecl *ClassDecl, 523e12e77bed10f87bdc7305d0dbd1de89e48f280c1Eli Friedman llvm::Constant *Vtable, 52421431c551d867962c66c92f0f96f652678f64c1cAnders Carlsson CGVtableInfo::AddrSubMap_t& AddressPoints, 525e12e77bed10f87bdc7305d0dbd1de89e48f280c1Eli Friedman llvm::Value *ThisPtr, 526e12e77bed10f87bdc7305d0dbd1de89e48f280c1Eli Friedman uint64_t Offset); 527e12e77bed10f87bdc7305d0dbd1de89e48f280c1Eli Friedman 528de1d26b9c1d8823b173e4d77015ad88b4da70559Anders Carlsson void SynthesizeCXXCopyConstructor(const CXXConstructorDecl *Ctor, 529de1d26b9c1d8823b173e4d77015ad88b4da70559Anders Carlsson CXXCtorType Type, 5308c241a2844428eb1589c7b77fc6c1888295a2045Fariborz Jahanian llvm::Function *Fn, 5318c241a2844428eb1589c7b77fc6c1888295a2045Fariborz Jahanian const FunctionArgList &Args); 5321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5332198ba12b73a8e6801d13f25de38031da6df46b6Fariborz Jahanian void SynthesizeCXXCopyAssignment(const CXXMethodDecl *CD, 5342198ba12b73a8e6801d13f25de38031da6df46b6Fariborz Jahanian llvm::Function *Fn, 5352198ba12b73a8e6801d13f25de38031da6df46b6Fariborz Jahanian const FunctionArgList &Args); 5361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 537de1d26b9c1d8823b173e4d77015ad88b4da70559Anders Carlsson void SynthesizeDefaultConstructor(const CXXConstructorDecl *Ctor, 538de1d26b9c1d8823b173e4d77015ad88b4da70559Anders Carlsson CXXCtorType Type, 53906f598aa45b651f9f3be0b916d43876eae747af0Fariborz Jahanian llvm::Function *Fn, 54006f598aa45b651f9f3be0b916d43876eae747af0Fariborz Jahanian const FunctionArgList &Args); 5411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 542de1d26b9c1d8823b173e4d77015ad88b4da70559Anders Carlsson void SynthesizeDefaultDestructor(const CXXDestructorDecl *Dtor, 543de1d26b9c1d8823b173e4d77015ad88b4da70559Anders Carlsson CXXDtorType Type, 544de1d26b9c1d8823b173e4d77015ad88b4da70559Anders Carlsson llvm::Function *Fn, 545de1d26b9c1d8823b173e4d77015ad88b4da70559Anders Carlsson const FunctionArgList &Args); 5461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 547426cc3828ce07a2cff15c9837f5958e6fc4b7739Fariborz Jahanian /// EmitDtorEpilogue - Emit all code that comes at the end of class's 548f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// destructor. This is to call destructors on members and base classes in 549f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// reverse order of their construction. 550de1d26b9c1d8823b173e4d77015ad88b4da70559Anders Carlsson void EmitDtorEpilogue(const CXXDestructorDecl *Dtor, 551de1d26b9c1d8823b173e4d77015ad88b4da70559Anders Carlsson CXXDtorType Type); 5521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5530dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitFunctionProlog - Emit the target specific LLVM code to load the 5540dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// arguments for the given function. This is also responsible for naming the 5550dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// LLVM function arguments. 55688b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar void EmitFunctionProlog(const CGFunctionInfo &FI, 55788b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar llvm::Function *Fn, 55817b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar const FunctionArgList &Args); 55917b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar 5600dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitFunctionEpilog - Emit the target specific LLVM code to return the 5610dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// given temporary. 56288b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar void EmitFunctionEpilog(const CGFunctionInfo &FI, llvm::Value *ReturnValue); 56317b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar 564cce3d4f9812182ed4e551b7cf0fc86576be8d9c5Mike Stump /// EmitStartEHSpec - Emit the start of the exception spec. 565cce3d4f9812182ed4e551b7cf0fc86576be8d9c5Mike Stump void EmitStartEHSpec(const Decl *D); 566cce3d4f9812182ed4e551b7cf0fc86576be8d9c5Mike Stump 567cce3d4f9812182ed4e551b7cf0fc86576be8d9c5Mike Stump /// EmitEndEHSpec - Emit the end of the exception spec. 568cce3d4f9812182ed4e551b7cf0fc86576be8d9c5Mike Stump void EmitEndEHSpec(const Decl *D); 569cce3d4f9812182ed4e551b7cf0fc86576be8d9c5Mike Stump 570182f383db1782af752ecaf607fdff72a8542088bMike Stump /// getTerminateHandler - Return a handler that just calls terminate. 5719b39c51ae3c547568ac42325f94b4197618f6b18Mike Stump llvm::BasicBlock *getTerminateHandler(); 5729b39c51ae3c547568ac42325f94b4197618f6b18Mike Stump 5738b1a343b6b360d63d5dc8a6beb841ce4414c1e00Daniel Dunbar const llvm::Type *ConvertTypeForMem(QualType T); 5745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const llvm::Type *ConvertType(QualType T); 575c8aa5f1f264fb230c38182adab944232bb160c2bChris Lattner 5760dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// LoadObjCSelf - Load the value of self. This function is only valid while 5770dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// generating code for an Objective-C method. 578c8aa5f1f264fb230c38182adab944232bb160c2bChris Lattner llvm::Value *LoadObjCSelf(); 5790dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 5800dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// TypeOfSelfObject - Return type of object that this self represents. 58145012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian QualType TypeOfSelfObject(); 5824111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner 5835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// hasAggregateLLVMType - Return true if the specified AST type will map into 5845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// an aggregate LLVM type or is void. 5855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool hasAggregateLLVMType(QualType T); 58655e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar 58755e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar /// createBasicBlock - Create an LLVM basic block. 5880dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump llvm::BasicBlock *createBasicBlock(const char *Name="", 58955e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar llvm::Function *Parent=0, 59055e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar llvm::BasicBlock *InsertBefore=0) { 59129ea6729155c759836be4b5453bee9ef8e1e97eeDaniel Dunbar#ifdef NDEBUG 5920032b2781b4deb131f8c9b7968f2030bf2489cddOwen Anderson return llvm::BasicBlock::Create(VMContext, "", Parent, InsertBefore); 59329ea6729155c759836be4b5453bee9ef8e1e97eeDaniel Dunbar#else 5940032b2781b4deb131f8c9b7968f2030bf2489cddOwen Anderson return llvm::BasicBlock::Create(VMContext, Name, Parent, InsertBefore); 59529ea6729155c759836be4b5453bee9ef8e1e97eeDaniel Dunbar#endif 59655e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar } 5970dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 5985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getBasicBlockForLabel - Return the LLVM basicblock that the specified 5995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// label maps to. 6005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::BasicBlock *getBasicBlockForLabel(const LabelStmt *S); 6010dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 602f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// SimplifyForwardingBlocks - If the given basic block is only a branch to 603f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// another basic block, simplify it. This assumes that no other code could 604f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// potentially reference the basic block. 605aa5bd87f1fd5f9ca47924248817c89325759b30eDaniel Dunbar void SimplifyForwardingBlocks(llvm::BasicBlock *BB); 606aa5bd87f1fd5f9ca47924248817c89325759b30eDaniel Dunbar 6070dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitBlock - Emit the given block \arg BB and set it as the insert point, 6080dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// adding a fall-through branch from the current insert block if 6090dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// necessary. It is legal to call this function even if there is no current 6100dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// insertion point. 611a0c21a8faa79e88ac432d116eca58f7a7217195dDaniel Dunbar /// 6120dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// IsFinished - If true, indicates that the caller has finished emitting 6130dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// branches to the given block and does not expect to emit code into it. This 6140dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// means the block can be ignored if it is unreachable. 615a0c21a8faa79e88ac432d116eca58f7a7217195dDaniel Dunbar void EmitBlock(llvm::BasicBlock *BB, bool IsFinished=false); 616824e3bd76b2e32db2ec6e4d2d113413e518d1c63Daniel Dunbar 6170dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitBranch - Emit a branch to the specified basic block from the current 6180dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// insert block, taking care to avoid creation of branches from dummy 6190dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// blocks. It is legal to call this function even if there is no current 6200dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// insertion point. 6215e08ad3cc62ab94649959ae227a9a411a729bf49Daniel Dunbar /// 6220dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// This function clears the current insertion point. The caller should follow 6230dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// calls to this function with calls to Emit*Block prior to generation new 6240dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// code. 625d57a871339c7c98d58d93108b806f59bdf4e13e2Daniel Dunbar void EmitBranch(llvm::BasicBlock *Block); 626d57a871339c7c98d58d93108b806f59bdf4e13e2Daniel Dunbar 6270dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// HaveInsertPoint - True if an insertion point is defined. If not, this 6280dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// indicates that the current code being emitted is unreachable. 6290dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump bool HaveInsertPoint() const { 630a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar return Builder.GetInsertBlock() != 0; 631a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar } 632a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 6330dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EnsureInsertPoint - Ensure that an insertion point is defined so that 6340dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// emitted IR has a place to go. Note that by definition, if this function 6350dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// creates a block then that block is unreachable; callers may do better to 6360dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// detect when no insertion point is defined and simply skip IR generation. 637a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar void EnsureInsertPoint() { 638a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar if (!HaveInsertPoint()) 639a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar EmitBlock(createBasicBlock()); 640a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar } 6410dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 642488e993a135ce700b982bf099c3d6b856301d642Daniel Dunbar /// ErrorUnsupported - Print out an error that codegen doesn't support the 643dc5e8268292046114ffe02e48773572a91a310f1Chris Lattner /// specified stmt yet. 64490df4b6661968a84bf64baee489bb2f6d948fcc1Daniel Dunbar void ErrorUnsupported(const Stmt *S, const char *Type, 64590df4b6661968a84bf64baee489bb2f6d948fcc1Daniel Dunbar bool OmitOnError=false); 6465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 6485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Helpers 6495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 6500dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 6510953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers MakeQualifiers(QualType T) { 652df317bf71653eeb235da8337b1e8e790f9653aa4Mike Stump Qualifiers Quals = getContext().getCanonicalType(T).getQualifiers(); 6530953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Quals.setObjCGCAttr(getContext().getObjCGCAttrKind(T)); 6540953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return Quals; 6550953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 6560953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 6575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// CreateTempAlloca - This creates a alloca and inserts it into the entry 6585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// block. 6595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::AllocaInst *CreateTempAlloca(const llvm::Type *Ty, 660259e9ccf882d11491ad149aec5e6d7a061c9f938Daniel Dunbar const llvm::Twine &Name = "tmp"); 6610dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 6625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EvaluateExprAsBool - Perform the usual unary conversions on the specified 6635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// expression and compare the result against zero, returning an Int1Ty value. 6645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::Value *EvaluateExprAsBool(const Expr *E); 6655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6669b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// EmitAnyExpr - Emit code to compute the specified expression which can have 6679b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// any type. The result is returned as an RValue struct. If this is an 6689b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// aggregate expression, the aggloc/agglocvolatile arguments indicate where 6699b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// the result should be returned. 67049d1cd5a09ed3df353371fd7f206674a85e0fb45Mike Stump /// 67149d1cd5a09ed3df353371fd7f206674a85e0fb45Mike Stump /// \param IgnoreResult - True if the resulting value isn't used. 6720dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump RValue EmitAnyExpr(const Expr *E, llvm::Value *AggLoc = 0, 67314c5cbf59cffee52275230922283a247de407712Anders Carlsson bool IsAggLocVolatile = false, bool IgnoreResult = false, 67414c5cbf59cffee52275230922283a247de407712Anders Carlsson bool IsInitializer = false); 675d9363c3a80168283b3da518b4e17f545a6246857Devang Patel 6760dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // EmitVAListRef - Emit a "reference" to a va_list; this is either the address 6770dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // or the value of the expression, depending on how va_list is defined. 6784fd0aa5803357d8c72eeac2cae15e12649ea08feEli Friedman llvm::Value *EmitVAListRef(const Expr *E); 6794fd0aa5803357d8c72eeac2cae15e12649ea08feEli Friedman 6800dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitAnyExprToTemp - Similary to EmitAnyExpr(), however, the result will 6810dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// always be accessible even if no aggregate location is provided. 68214c5cbf59cffee52275230922283a247de407712Anders Carlsson RValue EmitAnyExprToTemp(const Expr *E, bool IsAggLocVolatile = false, 68314c5cbf59cffee52275230922283a247de407712Anders Carlsson bool IsInitializer = false); 68446f45b9bec4a265ad8400a538e5ec3a5683617f1Daniel Dunbar 68527fe2e6c97a3782a0639d87b460741e8ba5d076dMike Stump /// EmitAggregateCopy - Emit an aggrate copy. 68627fe2e6c97a3782a0639d87b460741e8ba5d076dMike Stump /// 68727fe2e6c97a3782a0639d87b460741e8ba5d076dMike Stump /// \param isVolatile - True iff either the source or the destination is 68827fe2e6c97a3782a0639d87b460741e8ba5d076dMike Stump /// volatile. 6897482d12c345c6391f8956850545e2d4aa7701ce6Daniel Dunbar void EmitAggregateCopy(llvm::Value *DestPtr, llvm::Value *SrcPtr, 69027fe2e6c97a3782a0639d87b460741e8ba5d076dMike Stump QualType EltTy, bool isVolatile=false); 6917482d12c345c6391f8956850545e2d4aa7701ce6Daniel Dunbar 6927482d12c345c6391f8956850545e2d4aa7701ce6Daniel Dunbar void EmitAggregateClear(llvm::Value *DestPtr, QualType Ty); 6937482d12c345c6391f8956850545e2d4aa7701ce6Daniel Dunbar 69451b09f2c528c8460b5465c676173324e44176d62Devang Patel /// StartBlock - Start new block named N. If insert block is a dummy block 69551b09f2c528c8460b5465c676173324e44176d62Devang Patel /// then reuse it. 69651b09f2c528c8460b5465c676173324e44176d62Devang Patel void StartBlock(const char *N); 69751b09f2c528c8460b5465c676173324e44176d62Devang Patel 698813733577d33ec56479667b49e1bff42dc6bba90Lauro Ramos Venancio /// GetAddrOfStaticLocalVar - Return the address of a static local variable. 699248a753f6b670692523c99afaeb8fe98f7ae3ca7Steve Naroff llvm::Constant *GetAddrOfStaticLocalVar(const VarDecl *BVD); 7004f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman 701dde0a94120915fa925d1ffcdb997c7b44dc9fa21Anders Carlsson /// GetAddrOfLocalVar - Return the address of a local variable. 702dde0a94120915fa925d1ffcdb997c7b44dc9fa21Anders Carlsson llvm::Value *GetAddrOfLocalVar(const VarDecl *VD); 7030dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 7044f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman /// getAccessedFieldNo - Given an encoded value and a result number, return 7054f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman /// the input field number being accessed. 7064f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman static unsigned getAccessedFieldNo(unsigned Idx, const llvm::Constant *Elts); 7074f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman 708d9becd1846e2c72bf6ad283faa1b048f33dd3afeChris Lattner llvm::BlockAddress *GetAddrOfLabel(const LabelStmt *L); 7093d00fdc82fd550ae4bfbb2e700a1fc85bbd6d6fdChris Lattner llvm::BasicBlock *GetIndirectGotoBlock(); 7100ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar 7110dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitMemSetToZero - Generate code to memset a value of the given type to 0. 7123d8400d9a61aa4b63ff35e5cede405b32a41425eAnders Carlsson void EmitMemSetToZero(llvm::Value *DestPtr, QualType Ty); 713ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson 714ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson // EmitVAArg - Generate code to get an argument from the passed in pointer 715ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson // and update it accordingly. The return value is a pointer to the argument. 716ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson // FIXME: We should be able to get rid of this method and use the va_arg 7170dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // instruction in LLVM instead once it works well enough. 718ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson llvm::Value *EmitVAArg(llvm::Value *VAListAddr, QualType Ty); 719f666b7780d04186521adcaedb0e15dfa4d5e6933Anders Carlsson 720f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// EmitVLASize - Generate code for any VLA size expressions that might occur 721f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// in a variably modified type. If Ty is a VLA, will return the value that 722f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// corresponds to the size in bytes of the VLA type. Will return 0 otherwise. 723d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// 724d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// This function can be called with a null (unreachable) insert point. 72560d35413662ebdcd1d31e34a8a7c665eb6977f1eAnders Carlsson llvm::Value *EmitVLASize(QualType Ty); 7260dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 727dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson // GetVLASize - Returns an LLVM value that corresponds to the size in bytes 728dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson // of a variable length array type. 729dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson llvm::Value *GetVLASize(const VariableArrayType *); 730dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson 7315f4307b7ba164b03c853c8d3eb4674d33f8967a6Anders Carlsson /// LoadCXXThis - Load the value of 'this'. This function is only valid while 7325f4307b7ba164b03c853c8d3eb4674d33f8967a6Anders Carlsson /// generating code for an C++ member function. 7335f4307b7ba164b03c853c8d3eb4674d33f8967a6Anders Carlsson llvm::Value *LoadCXXThis(); 7341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 735c997d4278d329e18891aac9698fb991b2d4622ebAnders Carlsson /// LoadCXXVTT - Load the VTT parameter to base constructors/destructors have 736c997d4278d329e18891aac9698fb991b2d4622ebAnders Carlsson /// virtual bases. 737c997d4278d329e18891aac9698fb991b2d4622ebAnders Carlsson llvm::Value *LoadCXXVTT(); 738c997d4278d329e18891aac9698fb991b2d4622ebAnders Carlsson 739f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// GetAddressOfBaseClass - This function will add the necessary delta to the 740f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// load of 'this' and returns address of the base class. 7411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // FIXME. This currently only does a derived to non-virtual base conversion. 7429e809e7da2448c08aa11f15be4680226754678ceFariborz Jahanian // Other kinds of conversions will come later. 743a3697c9c155bda93fd2802f37084b620f4738822Anders Carlsson llvm::Value *GetAddressOfBaseClass(llvm::Value *Value, 744a3697c9c155bda93fd2802f37084b620f4738822Anders Carlsson const CXXRecordDecl *ClassDecl, 745a3697c9c155bda93fd2802f37084b620f4738822Anders Carlsson const CXXRecordDecl *BaseClassDecl, 746a3697c9c155bda93fd2802f37084b620f4738822Anders Carlsson bool NullCheckValue); 747a3697c9c155bda93fd2802f37084b620f4738822Anders Carlsson 748a3697c9c155bda93fd2802f37084b620f4738822Anders Carlsson llvm::Value *GetAddressOfDerivedClass(llvm::Value *Value, 7495a0f49ebc83e7fe0da07b9964c44b0a7fae270cbAnders Carlsson const CXXRecordDecl *ClassDecl, 750a3697c9c155bda93fd2802f37084b620f4738822Anders Carlsson const CXXRecordDecl *DerivedClassDecl, 7515a0f49ebc83e7fe0da07b9964c44b0a7fae270cbAnders Carlsson bool NullCheckValue); 752a3697c9c155bda93fd2802f37084b620f4738822Anders Carlsson 753bb7e17b52ffaa4097b4c4d7935746d23539ffe2aAnders Carlsson llvm::Value *GetVirtualBaseClassOffset(llvm::Value *This, 754bb7e17b52ffaa4097b4c4d7935746d23539ffe2aAnders Carlsson const CXXRecordDecl *ClassDecl, 755bb7e17b52ffaa4097b4c4d7935746d23539ffe2aAnders Carlsson const CXXRecordDecl *BaseClassDecl); 7562f1986b557fa671c4f8c9dd0d071398edfc073d5Anders Carlsson 7571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void EmitClassAggrMemberwiseCopy(llvm::Value *DestValue, 758eb0b6d556ff2b4a5053e89fd084eb34e44cea14cFariborz Jahanian llvm::Value *SrcValue, 759c28bbc2d2271aab6c5d79ef2758604221cd92a4bFariborz Jahanian const ArrayType *Array, 760c28bbc2d2271aab6c5d79ef2758604221cd92a4bFariborz Jahanian const CXXRecordDecl *BaseClassDecl, 761c28bbc2d2271aab6c5d79ef2758604221cd92a4bFariborz Jahanian QualType Ty); 762c28bbc2d2271aab6c5d79ef2758604221cd92a4bFariborz Jahanian 7631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void EmitClassAggrCopyAssignment(llvm::Value *DestValue, 764c28bbc2d2271aab6c5d79ef2758604221cd92a4bFariborz Jahanian llvm::Value *SrcValue, 765eb0b6d556ff2b4a5053e89fd084eb34e44cea14cFariborz Jahanian const ArrayType *Array, 766eb0b6d556ff2b4a5053e89fd084eb34e44cea14cFariborz Jahanian const CXXRecordDecl *BaseClassDecl, 767eb0b6d556ff2b4a5053e89fd084eb34e44cea14cFariborz Jahanian QualType Ty); 768eb0b6d556ff2b4a5053e89fd084eb34e44cea14cFariborz Jahanian 769ca28361fb0a72c50e0a400fae2fad9520e61c0a5Fariborz Jahanian void EmitClassMemberwiseCopy(llvm::Value *DestValue, llvm::Value *SrcValue, 7701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const CXXRecordDecl *ClassDecl, 771942f4f33d02dba823594bd2d7b3d317cb01c74f8Fariborz Jahanian const CXXRecordDecl *BaseClassDecl, 772942f4f33d02dba823594bd2d7b3d317cb01c74f8Fariborz Jahanian QualType Ty); 7731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7740270b8aa3f9b50ec3acd1abfd2b97377a3e1bb05Fariborz Jahanian void EmitClassCopyAssignment(llvm::Value *DestValue, llvm::Value *SrcValue, 7751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const CXXRecordDecl *ClassDecl, 7760270b8aa3f9b50ec3acd1abfd2b97377a3e1bb05Fariborz Jahanian const CXXRecordDecl *BaseClassDecl, 7770270b8aa3f9b50ec3acd1abfd2b97377a3e1bb05Fariborz Jahanian QualType Ty); 7781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void EmitCXXConstructorCall(const CXXConstructorDecl *D, CXXCtorType Type, 780b14095aa98c6fedd3625920c4ce834bcaf24d9f7Anders Carlsson llvm::Value *This, 781b14095aa98c6fedd3625920c4ce834bcaf24d9f7Anders Carlsson CallExpr::const_arg_iterator ArgBeg, 782b14095aa98c6fedd3625920c4ce834bcaf24d9f7Anders Carlsson CallExpr::const_arg_iterator ArgEnd); 7831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 784288dcaf329c49b01dacd5c1dd9f35609555feecdFariborz Jahanian void EmitCXXAggrConstructorCall(const CXXConstructorDecl *D, 785569c1f4a6c703eaa8b963bed7d5c2fd5d4569e93Anders Carlsson const ConstantArrayType *ArrayTy, 7865d4d946ec2d88696fd8422aeb64dc29688e6a2c1Anders Carlsson llvm::Value *ArrayPtr, 7875d4d946ec2d88696fd8422aeb64dc29688e6a2c1Anders Carlsson CallExpr::const_arg_iterator ArgBeg, 7885d4d946ec2d88696fd8422aeb64dc29688e6a2c1Anders Carlsson CallExpr::const_arg_iterator ArgEnd); 7895d4d946ec2d88696fd8422aeb64dc29688e6a2c1Anders Carlsson 790569c1f4a6c703eaa8b963bed7d5c2fd5d4569e93Anders Carlsson void EmitCXXAggrConstructorCall(const CXXConstructorDecl *D, 791569c1f4a6c703eaa8b963bed7d5c2fd5d4569e93Anders Carlsson llvm::Value *NumElements, 7925d4d946ec2d88696fd8422aeb64dc29688e6a2c1Anders Carlsson llvm::Value *ArrayPtr, 7935d4d946ec2d88696fd8422aeb64dc29688e6a2c1Anders Carlsson CallExpr::const_arg_iterator ArgBeg, 7945d4d946ec2d88696fd8422aeb64dc29688e6a2c1Anders Carlsson CallExpr::const_arg_iterator ArgEnd); 795b14095aa98c6fedd3625920c4ce834bcaf24d9f7Anders Carlsson 796f800f6c09ed4a71bcb593d6962e0fda2c2845a70Fariborz Jahanian void EmitCXXAggrDestructorCall(const CXXDestructorDecl *D, 797f800f6c09ed4a71bcb593d6962e0fda2c2845a70Fariborz Jahanian const ArrayType *Array, 798f800f6c09ed4a71bcb593d6962e0fda2c2845a70Fariborz Jahanian llvm::Value *This); 7991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 80072c2153b466263a21870b2b1c817900d4981493eFariborz Jahanian void EmitCXXAggrDestructorCall(const CXXDestructorDecl *D, 80172c2153b466263a21870b2b1c817900d4981493eFariborz Jahanian llvm::Value *NumElements, 80272c2153b466263a21870b2b1c817900d4981493eFariborz Jahanian llvm::Value *This); 80372c2153b466263a21870b2b1c817900d4981493eFariborz Jahanian 804dd36d328730d8c02915d0884541b45ec6ca0049dChris Lattner llvm::Constant *GenerateCXXAggrDestructorHelper(const CXXDestructorDecl *D, 80588f4280f6b60edcbdea6a38a3da8b17d66473ad6Fariborz Jahanian const ArrayType *Array, 80688f4280f6b60edcbdea6a38a3da8b17d66473ad6Fariborz Jahanian llvm::Value *This); 80788f4280f6b60edcbdea6a38a3da8b17d66473ad6Fariborz Jahanian 8087267c1693abe7875b0c57268be05005ae013c6c9Anders Carlsson void EmitCXXDestructorCall(const CXXDestructorDecl *D, CXXDtorType Type, 8097267c1693abe7875b0c57268be05005ae013c6c9Anders Carlsson llvm::Value *This); 8101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 811543ac0c4d24a81fb2b7b6e83370aa8e4cbc93054Anders Carlsson void PushCXXTemporary(const CXXTemporary *Temporary, llvm::Value *Ptr); 812f4b8fea84a6b1ef74cf8fe572918439e34935e51Anders Carlsson void PopCXXTemporary(); 8131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 814a00703dccbdc6cc4a293db38477dea7db5538c7eAnders Carlsson llvm::Value *EmitCXXNewExpr(const CXXNewExpr *E); 81560e282cc1e508be327b0481cecedc206873cb86aAnders Carlsson void EmitCXXDeleteExpr(const CXXDeleteExpr *E); 8161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8174bf8152799ec41796f989ea1b94f6f1bac349117Eli Friedman void EmitDeleteCall(const FunctionDecl *DeleteFD, llvm::Value *Ptr, 8184bf8152799ec41796f989ea1b94f6f1bac349117Eli Friedman QualType DeleteTy); 8194bf8152799ec41796f989ea1b94f6f1bac349117Eli Friedman 820c2e84ae9a6d25cea3e583c768e576b4c981ec028Mike Stump llvm::Value* EmitCXXTypeidExpr(const CXXTypeidExpr *E); 821c849c052d6b4b70f2651c1969531861a5f230053Mike Stump llvm::Value *EmitDynamicCast(llvm::Value *V, const CXXDynamicCastExpr *DCE); 822c2e84ae9a6d25cea3e583c768e576b4c981ec028Mike Stump 823b14e62d5aee7522b98c410ee65bd750c2cfe6f01Mike Stump void EmitCheck(llvm::Value *, unsigned Size); 824b14e62d5aee7522b98c410ee65bd750c2cfe6f01Mike Stump 825dd36d328730d8c02915d0884541b45ec6ca0049dChris Lattner llvm::Value *EmitScalarPrePostIncDec(const UnaryOperator *E, LValue LV, 826dd36d328730d8c02915d0884541b45ec6ca0049dChris Lattner bool isInc, bool isPre); 827dd36d328730d8c02915d0884541b45ec6ca0049dChris Lattner ComplexPairTy EmitComplexPrePostIncDec(const UnaryOperator *E, LValue LV, 828dd36d328730d8c02915d0884541b45ec6ca0049dChris Lattner bool isInc, bool isPre); 8295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 8305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Declaration Emission 8315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 8320dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 833d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// EmitDecl - Emit a declaration. 834d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// 835d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// This function can be called with a null (unreachable) insert point. 8365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitDecl(const Decl &D); 837d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar 8381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// EmitBlockVarDecl - Emit a block variable declaration. 839d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// 840d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// This function can be called with a null (unreachable) insert point. 841248a753f6b670692523c99afaeb8fe98f7ae3ca7Steve Naroff void EmitBlockVarDecl(const VarDecl &D); 842d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar 843d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// EmitLocalBlockVarDecl - Emit a local block variable declaration. 844d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// 845d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// This function can be called with a null (unreachable) insert point. 846248a753f6b670692523c99afaeb8fe98f7ae3ca7Steve Naroff void EmitLocalBlockVarDecl(const VarDecl &D); 847d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar 848248a753f6b670692523c99afaeb8fe98f7ae3ca7Steve Naroff void EmitStaticBlockVarDecl(const VarDecl &D); 849b7ec246872b412f0e7bb9e93eacfd78cfa6adfb3Daniel Dunbar 850b7ec246872b412f0e7bb9e93eacfd78cfa6adfb3Daniel Dunbar /// EmitParmDecl - Emit a ParmVarDecl or an ImplicitParamDecl. 851b7ec246872b412f0e7bb9e93eacfd78cfa6adfb3Daniel Dunbar void EmitParmDecl(const VarDecl &D, llvm::Value *Arg); 8520dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 8535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 8545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Statement Emission 8555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 8565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8570dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitStopPoint - Emit a debug stoppoint if we are emitting debug info. 8580912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar void EmitStopPoint(const Stmt *S); 8590912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar 8600dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitStmt - Emit the code for the statement \arg S. It is legal to call 8610dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// this function even if there is no current insertion point. 8620dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// 8630dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// This function may clear the current insertion point; callers should use 8640dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EnsureInsertPoint if they wish to subsequently generate code without first 8650dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// calling EmitBlock, EmitBranch, or EmitStmt. 8665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitStmt(const Stmt *S); 867a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 8680912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar /// EmitSimpleStmt - Try to emit a "simple" statement which does not 8690dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// necessarily require an insertion point or debug information; typically 8700dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// because the statement amounts to a jump or a container of other 8710dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// statements. 8720912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar /// 8730912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar /// \return True if the statement was handled. 8740912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar bool EmitSimpleStmt(const Stmt *S); 8750912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar 8769b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner RValue EmitCompoundStmt(const CompoundStmt &S, bool GetLast = false, 8779b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner llvm::Value *AggLoc = 0, bool isAggVol = false); 878a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 8790dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitLabel - Emit the block for the given label. It is legal to call this 8800dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// function even if there is no current insertion point. 88191d723da7b68be5245c3ac58aa2a36d04658cfb8Chris Lattner void EmitLabel(const LabelStmt &S); // helper for EmitLabelStmt. 882a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 8835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitLabelStmt(const LabelStmt &S); 8845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitGotoStmt(const GotoStmt &S); 8850ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar void EmitIndirectGotoStmt(const IndirectGotoStmt &S); 8865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitIfStmt(const IfStmt &S); 8875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitWhileStmt(const WhileStmt &S); 8885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitDoStmt(const DoStmt &S); 8895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitForStmt(const ForStmt &S); 8905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitReturnStmt(const ReturnStmt &S); 8915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitDeclStmt(const DeclStmt &S); 8920912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar void EmitBreakStmt(const BreakStmt &S); 8930912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar void EmitContinueStmt(const ContinueStmt &S); 89451b09f2c528c8460b5465c676173324e44176d62Devang Patel void EmitSwitchStmt(const SwitchStmt &S); 89551b09f2c528c8460b5465c676173324e44176d62Devang Patel void EmitDefaultStmt(const DefaultStmt &S); 89651b09f2c528c8460b5465c676173324e44176d62Devang Patel void EmitCaseStmt(const CaseStmt &S); 897c049e4f406a7f7179eba98659044a32508e53289Devang Patel void EmitCaseStmtRange(const CaseStmt &S); 898fb1aeb804c08d5288a923fb278161783e6abdc66Anders Carlsson void EmitAsmStmt(const AsmStmt &S); 8990dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 9003d8400d9a61aa4b63ff35e5cede405b32a41425eAnders Carlsson void EmitObjCForCollectionStmt(const ObjCForCollectionStmt &S); 90164d5d6c5903157c521af496479d06dc26032d718Anders Carlsson void EmitObjCAtTryStmt(const ObjCAtTryStmt &S); 90264d5d6c5903157c521af496479d06dc26032d718Anders Carlsson void EmitObjCAtThrowStmt(const ObjCAtThrowStmt &S); 90310cac6f7115b59a466bb8d2d51cdddeb38aadc37Chris Lattner void EmitObjCAtSynchronizedStmt(const ObjCAtSynchronizedStmt &S); 9040dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 9056815e941998659a55c20c147861b0f437928c3d8Anders Carlsson void EmitCXXTryStmt(const CXXTryStmt &S); 9066815e941998659a55c20c147861b0f437928c3d8Anders Carlsson 9075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 9085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // LValue Expression Emission 9095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 9105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 91113e81737a433b23f8c662d10d1d57356122a8caaDaniel Dunbar /// GetUndefRValue - Get an appropriate 'undef' rvalue for the given type. 91213e81737a433b23f8c662d10d1d57356122a8caaDaniel Dunbar RValue GetUndefRValue(QualType Ty); 91313e81737a433b23f8c662d10d1d57356122a8caaDaniel Dunbar 914ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar /// EmitUnsupportedRValue - Emit a dummy r-value using the type of E 915ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar /// and issue an ErrorUnsupported style diagnostic (using the 916ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar /// provided Name). 917ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar RValue EmitUnsupportedRValue(const Expr *E, 918ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar const char *Name); 919ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar 9200dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitUnsupportedLValue - Emit a dummy l-value using the type of E and issue 9210dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// an ErrorUnsupported style diagnostic (using the provided Name). 9226ba82a4a4b295e54cf192c3e98b28f39990c6194Daniel Dunbar LValue EmitUnsupportedLValue(const Expr *E, 9236ba82a4a4b295e54cf192c3e98b28f39990c6194Daniel Dunbar const char *Name); 9246ba82a4a4b295e54cf192c3e98b28f39990c6194Daniel Dunbar 9255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EmitLValue - Emit code to compute a designator that specifies the location 9265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// of the expression. 9275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 9285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// This can return one of two things: a simple address or a bitfield 9295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// reference. In either case, the LLVM Value* in the LValue structure is 9305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// guaranteed to be an LLVM pointer type. 9315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 9325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// If this returns a bitfield reference, nothing about the pointee type of 9335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// the LLVM value is known: For example, it may not be a pointer to an 9345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// integer. 9355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 9365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// If this returns a normal address, and if the lvalue's C type is fixed 9375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// size, this method guarantees that the returned pointer type will point to 9385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// an LLVM type of the same size of the lvalue's type. If the lvalue has a 9395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// variable length type, this is not possible. 9405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 9415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitLValue(const Expr *E); 9420dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 943b14e62d5aee7522b98c410ee65bd750c2cfe6f01Mike Stump /// EmitCheckedLValue - Same as EmitLValue but additionally we generate 944b14e62d5aee7522b98c410ee65bd750c2cfe6f01Mike Stump /// checking code to guard against undefined behavior. This is only 945b14e62d5aee7522b98c410ee65bd750c2cfe6f01Mike Stump /// suitable when we know that the address will be used to access the 946b14e62d5aee7522b98c410ee65bd750c2cfe6f01Mike Stump /// object. 947b14e62d5aee7522b98c410ee65bd750c2cfe6f01Mike Stump LValue EmitCheckedLValue(const Expr *E); 948b14e62d5aee7522b98c410ee65bd750c2cfe6f01Mike Stump 9499d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// EmitLoadOfScalar - Load a scalar value from an address, taking 9509d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// care to appropriately convert from the memory representation to 9519d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// the LLVM value representation. 95209429b962811f2c0a7a81a1b0a89f96f5878b20cMike Stump llvm::Value *EmitLoadOfScalar(llvm::Value *Addr, bool Volatile, 9539d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar QualType Ty); 9549d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar 9559d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// EmitStoreOfScalar - Store a scalar value to an address, taking 9569d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// care to appropriately convert from the memory representation to 9579d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// the LLVM value representation. 95809429b962811f2c0a7a81a1b0a89f96f5878b20cMike Stump void EmitStoreOfScalar(llvm::Value *Value, llvm::Value *Addr, 959b4aa4664ec851573624a7a29c6c750fc1d5cc268Anders Carlsson bool Volatile, QualType Ty); 9609d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar 9615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EmitLoadOfLValue - Given an expression that represents a value lvalue, 9625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// this method emits the address of the lvalue, then loads the result as an 9635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// rvalue, returning the rvalue. 9645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer RValue EmitLoadOfLValue(LValue V, QualType LVType); 965213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman RValue EmitLoadOfExtVectorElementLValue(LValue V, QualType LVType); 9663b8c22d93da1432b2d4cea779d14912645c93866Lauro Ramos Venancio RValue EmitLoadOfBitfieldLValue(LValue LV, QualType ExprType); 96785c59edda02df48fae8dc85049743319bc6e7e89Daniel Dunbar RValue EmitLoadOfPropertyRefLValue(LValue LV, QualType ExprType); 96843f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian RValue EmitLoadOfKVCRefLValue(LValue LV, QualType ExprType); 9695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9700dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 9715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EmitStoreThroughLValue - Store the specified rvalue into the specified 9725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// lvalue, where both are guaranteed to the have the same type, and that type 9735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// is 'Ty'. 9745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitStoreThroughLValue(RValue Src, LValue Dst, QualType Ty); 975213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman void EmitStoreThroughExtVectorComponentLValue(RValue Src, LValue Dst, 976213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman QualType Ty); 97785c59edda02df48fae8dc85049743319bc6e7e89Daniel Dunbar void EmitStoreThroughPropertyRefLValue(RValue Src, LValue Dst, QualType Ty); 97843f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian void EmitStoreThroughKVCRefLValue(RValue Src, LValue Dst, QualType Ty); 979ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar 9800dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitStoreThroughLValue - Store Src into Dst with same constraints as 9810dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitStoreThroughLValue. 982ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar /// 9830dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// \param Result [out] - If non-null, this will be set to a Value* for the 9840dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// bit-field contents after the store, appropriate for use as the result of 9850dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// an assignment to the bit-field. 986ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar void EmitStoreThroughBitfieldLValue(RValue Src, LValue Dst, QualType Ty, 987ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar llvm::Value **Result=0); 9880dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 98922c940ee588a420cd2e6c8f68be2ac3cc80061ffChristopher Lamb // Note: only availabe for agg return types 99080e62c29fe21cd06c93eba6e72b7e32dca06fcf9Daniel Dunbar LValue EmitBinaryOperatorLValue(const BinaryOperator *E); 9915b5c9ef865607e179413462dcd71bcebb5b7daaeDaniel Dunbar // Note: only available for agg return types 99222c940ee588a420cd2e6c8f68be2ac3cc80061ffChristopher Lamb LValue EmitCallExprLValue(const CallExpr *E); 9935b5c9ef865607e179413462dcd71bcebb5b7daaeDaniel Dunbar // Note: only available for agg return types 9945b5c9ef865607e179413462dcd71bcebb5b7daaeDaniel Dunbar LValue EmitVAArgExprLValue(const VAArgExpr *E); 9955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitDeclRefLValue(const DeclRefExpr *E); 9965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitStringLiteralLValue(const StringLiteral *E); 997eaf2bb89eb2aad3b80673de30febe52df43c10ecChris Lattner LValue EmitObjCEncodeExprLValue(const ObjCEncodeExpr *E); 998662b71ee82339c67f2c3689196e716c6560cf925Daniel Dunbar LValue EmitPredefinedFunctionName(unsigned Type); 999d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner LValue EmitPredefinedLValue(const PredefinedExpr *E); 10005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitUnaryOpLValue(const UnaryOperator *E); 10015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitArraySubscriptExpr(const ArraySubscriptExpr *E); 1002213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman LValue EmitExtVectorElementExpr(const ExtVectorElementExpr *E); 1003b84a06e68ffd71da22e3c75b6e4bbdba37816413Devang Patel LValue EmitMemberExpr(const MemberExpr *E); 1004820bca41c3899374775d2a1dfc2ef2e22aaf1c7bFariborz Jahanian LValue EmitObjCIsaExpr(const ObjCIsaExpr *E); 100506e863f2902b8ba55b056308875c19f7ba3dab25Eli Friedman LValue EmitCompoundLiteralLValue(const CompoundLiteralExpr *E); 10066fcec8b58d0571866fcb162db947b029cc539ec4Anders Carlsson LValue EmitConditionalOperatorLValue(const ConditionalOperator *E); 100775dfedaf702822c9e51a4f3c5d3ecf2d2ad99272Chris Lattner LValue EmitCastLValue(const CastExpr *E); 100848620bafe4ba879f96c2d17caefeb79f3fae2eeaFariborz Jahanian LValue EmitNullInitializationLValue(const CXXZeroInitValueExpr *E); 1009909fbf70223ea04a5ec8d449789f3683a89701ffAnders Carlsson 1010909fbf70223ea04a5ec8d449789f3683a89701ffAnders Carlsson LValue EmitPointerToDataMemberLValue(const FieldDecl *Field); 101148620bafe4ba879f96c2d17caefeb79f3fae2eeaFariborz Jahanian 10122a03192a02dbf4fdff438d1e658356bde871aba4Daniel Dunbar llvm::Value *EmitIvarOffset(const ObjCInterfaceDecl *Interface, 101329e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar const ObjCIvarDecl *Ivar); 10140ed303c918915cbe2c611cddbfabd00404664831Anders Carlsson LValue EmitLValueForField(llvm::Value* Base, const FieldDecl* Field, 1015e6d2a534851a649485cb087e9dfcaf8a65886858Anders Carlsson unsigned CVRQualifiers); 101606a2970e9480c6d02b367b2f970baff29b9f9721Anders Carlsson 101706a2970e9480c6d02b367b2f970baff29b9f9721Anders Carlsson /// EmitLValueForFieldInitialization - Like EmitLValueForField, except that 101806a2970e9480c6d02b367b2f970baff29b9f9721Anders Carlsson /// if the Field is a reference, this will return the address of the reference 101906a2970e9480c6d02b367b2f970baff29b9f9721Anders Carlsson /// and not the address of the value stored in the reference. 102006a2970e9480c6d02b367b2f970baff29b9f9721Anders Carlsson LValue EmitLValueForFieldInitialization(llvm::Value* Base, 102106a2970e9480c6d02b367b2f970baff29b9f9721Anders Carlsson const FieldDecl* Field, 102206a2970e9480c6d02b367b2f970baff29b9f9721Anders Carlsson unsigned CVRQualifiers); 102306a2970e9480c6d02b367b2f970baff29b9f9721Anders Carlsson 102445012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian LValue EmitLValueForIvar(QualType ObjectTy, 102545012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian llvm::Value* Base, const ObjCIvarDecl *Ivar, 102629e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar unsigned CVRQualifiers); 102729e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar 10280ed303c918915cbe2c611cddbfabd00404664831Anders Carlsson LValue EmitLValueForBitfield(llvm::Value* Base, const FieldDecl* Field, 1029598d3f61b6ca854e9d3c2f3359e24468502a61aaFariborz Jahanian unsigned CVRQualifiers); 1030fd64bb635dc221baa19f81d5d2a084f7eb269f7fFariborz Jahanian 1031a99038c0757a836c6faeeddaa5dfd249b32f6e9eMike Stump LValue EmitBlockDeclRefLValue(const BlockDeclRefExpr *E); 1032a99038c0757a836c6faeeddaa5dfd249b32f6e9eMike Stump 1033b58d017f2b9eeed33f2ab3ede968b89cf5296bf2Anders Carlsson LValue EmitCXXConstructLValue(const CXXConstructExpr *E); 1034e61c9e80a108b5db7e5f0e702f0e455d737c6390Anders Carlsson LValue EmitCXXBindTemporaryLValue(const CXXBindTemporaryExpr *E); 1035b9ea0b53d323cdca2b8284ff986a878e195cb97fAnders Carlsson LValue EmitCXXExprWithTemporariesLValue(const CXXExprWithTemporaries *E); 1036c2e84ae9a6d25cea3e583c768e576b4c981ec028Mike Stump LValue EmitCXXTypeidLValue(const CXXTypeidExpr *E); 1037b9ea0b53d323cdca2b8284ff986a878e195cb97fAnders Carlsson 10380a04d77bde7e3a661c2b41b60630d125d09ed6efDaniel Dunbar LValue EmitObjCMessageExprLValue(const ObjCMessageExpr *E); 1039391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner LValue EmitObjCIvarRefLValue(const ObjCIvarRefExpr *E); 104085c59edda02df48fae8dc85049743319bc6e7e89Daniel Dunbar LValue EmitObjCPropertyRefLValue(const ObjCPropertyRefExpr *E); 104109105f52b1f28cbb1374c27c3c70f5517e2c465dFariborz Jahanian LValue EmitObjCKVCRefLValue(const ObjCImplicitSetterGetterRefExpr *E); 1042654599454c8e6cc83b1b9b3af43c49c2f66a26cbChris Lattner LValue EmitObjCSuperExprLValue(const ObjCSuperExpr *E); 1043654599454c8e6cc83b1b9b3af43c49c2f66a26cbChris Lattner LValue EmitStmtExprLValue(const StmtExpr *E); 10448bfd31f9dad09cd52225d868bbd92a9bebe87775Fariborz Jahanian LValue EmitPointerToDataMemberBinaryExpr(const BinaryOperator *E); 10458bfd31f9dad09cd52225d868bbd92a9bebe87775Fariborz Jahanian 10465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 1047883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner // Scalar Expression Emission 10485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 10495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10500dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitCall - Generate a call of the given function, expecting the given 10510dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// result type, and using the given argument list which specifies both the 10520dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// LLVM arguments and the types they were derived from. 1053c0ef9f59937c3971c48b6fed37cf5bd8985c024bDaniel Dunbar /// 1054f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// \param TargetDecl - If given, the decl of the function in a direct call; 1055f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// used to set attributes on the call (noreturn, etc.). 105688b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar RValue EmitCall(const CGFunctionInfo &FnInfo, 105788b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar llvm::Value *Callee, 1058f3c47c9525153aea2de0ec4bd615b9cf2d81c103Anders Carlsson ReturnValueSlot ReturnValue, 1059c0ef9f59937c3971c48b6fed37cf5bd8985c024bDaniel Dunbar const CallArgList &Args, 1060c0ef9f59937c3971c48b6fed37cf5bd8985c024bDaniel Dunbar const Decl *TargetDecl = 0); 10611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 106231777a2540879051a3c643b90e02c3fd3d315243Anders Carlsson RValue EmitCall(QualType FnType, llvm::Value *Callee, 1063d2490a91341b57df7a7e54f8a707e7ecde2eeb4eAnders Carlsson ReturnValueSlot ReturnValue, 1064986477149db76e6d9f8d3c9859c9880c11b680aeAnders Carlsson CallExpr::const_arg_iterator ArgBeg, 1065986477149db76e6d9f8d3c9859c9880c11b680aeAnders Carlsson CallExpr::const_arg_iterator ArgEnd, 1066986477149db76e6d9f8d3c9859c9880c11b680aeAnders Carlsson const Decl *TargetDecl = 0); 1067d2490a91341b57df7a7e54f8a707e7ecde2eeb4eAnders Carlsson RValue EmitCallExpr(const CallExpr *E, 1068d2490a91341b57df7a7e54f8a707e7ecde2eeb4eAnders Carlsson ReturnValueSlot ReturnValue = ReturnValueSlot()); 10691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1070566abee1e9828a7700b51e4d17ea08234fde3bb4Anders Carlsson llvm::Value *BuildVirtualCall(const CXXMethodDecl *MD, llvm::Value *This, 1071f0070dbae9535836ad41711081465dec2259786bMike Stump const llvm::Type *Ty); 1072566abee1e9828a7700b51e4d17ea08234fde3bb4Anders Carlsson llvm::Value *BuildVirtualCall(const CXXDestructorDecl *DD, CXXDtorType Type, 1073566abee1e9828a7700b51e4d17ea08234fde3bb4Anders Carlsson llvm::Value *&This, const llvm::Type *Ty); 1074566abee1e9828a7700b51e4d17ea08234fde3bb4Anders Carlsson 1075b9de2c55b2a33776e2bee8ee57df7599b374c8a5Anders Carlsson RValue EmitCXXMemberCall(const CXXMethodDecl *MD, 1076b9de2c55b2a33776e2bee8ee57df7599b374c8a5Anders Carlsson llvm::Value *Callee, 1077a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson ReturnValueSlot ReturnValue, 1078b9de2c55b2a33776e2bee8ee57df7599b374c8a5Anders Carlsson llvm::Value *This, 1079c997d4278d329e18891aac9698fb991b2d4622ebAnders Carlsson llvm::Value *VTT, 1080b9de2c55b2a33776e2bee8ee57df7599b374c8a5Anders Carlsson CallExpr::const_arg_iterator ArgBeg, 1081b9de2c55b2a33776e2bee8ee57df7599b374c8a5Anders Carlsson CallExpr::const_arg_iterator ArgEnd); 1082a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson RValue EmitCXXMemberCallExpr(const CXXMemberCallExpr *E, 1083a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson ReturnValueSlot ReturnValue); 1084a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson RValue EmitCXXMemberPointerCallExpr(const CXXMemberCallExpr *E, 1085a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson ReturnValueSlot ReturnValue); 10865549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek 10870f294632f36459174199b77699e339715244b5abAnders Carlsson RValue EmitCXXOperatorMemberCallExpr(const CXXOperatorCallExpr *E, 1088a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson const CXXMethodDecl *MD, 1089a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson ReturnValueSlot ReturnValue); 10901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1091375c31c4673f83f925de221752cf801c2fbbb246Anders Carlsson 10921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump RValue EmitBuiltinExpr(const FunctionDecl *FD, 1093ef2abfee3ea16ec74942dc09e9e425f46aeb2582Daniel Dunbar unsigned BuiltinID, const CallExpr *E); 10945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1095a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson RValue EmitBlockCallExpr(const CallExpr *E, ReturnValueSlot ReturnValue); 109609429b962811f2c0a7a81a1b0a89f96f5878b20cMike Stump 10970dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitTargetBuiltinExpr - Emit the given builtin call. Returns 0 if the call 10980dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// is unhandled by the current target. 1099f02e9ddf5efc75917af712b3c7f909581205f0a5Daniel Dunbar llvm::Value *EmitTargetBuiltinExpr(unsigned BuiltinID, const CallExpr *E); 1100f02e9ddf5efc75917af712b3c7f909581205f0a5Daniel Dunbar 1101564f1de67d7ba43646b8740db86d6269e3dfbe0bAnders Carlsson llvm::Value *EmitX86BuiltinExpr(unsigned BuiltinID, const CallExpr *E); 1102564f1de67d7ba43646b8740db86d6269e3dfbe0bAnders Carlsson llvm::Value *EmitPPCBuiltinExpr(unsigned BuiltinID, const CallExpr *E); 11030dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1104ed7c618f849e2541b1d0288c43154937652c5b15Daniel Dunbar llvm::Value *EmitObjCProtocolExpr(const ObjCProtocolExpr *E); 11057f02f721d48772e4eee4fccd8af4f800be1bbc1eChris Lattner llvm::Value *EmitObjCStringLiteral(const ObjCStringLiteral *E); 11068fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner llvm::Value *EmitObjCSelectorExpr(const ObjCSelectorExpr *E); 11078f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar RValue EmitObjCMessageExpr(const ObjCMessageExpr *E); 11085daf570d0ce027e18ed5f9d66e6b2a14a40b720dFariborz Jahanian RValue EmitObjCPropertyGet(const Expr *E); 1109f469557743f77918d2ca8226e2ee2888998ffd4aFariborz Jahanian RValue EmitObjCSuperPropertyGet(const Expr *Exp, const Selector &S); 111043f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian void EmitObjCPropertySet(const Expr *E, RValue Src); 1111f469557743f77918d2ca8226e2ee2888998ffd4aFariborz Jahanian void EmitObjCSuperPropertySet(const Expr *E, const Selector &S, RValue Src); 11128fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner 11138fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner 11144029ca7ae9d3ffd7738fe2ed8782bebc30f36fd6Anders Carlsson /// EmitReferenceBindingToExpr - Emits a reference binding to the passed in 11154029ca7ae9d3ffd7738fe2ed8782bebc30f36fd6Anders Carlsson /// expression. Will emit a temporary variable if E is not an LValue. 111614c5cbf59cffee52275230922283a247de407712Anders Carlsson RValue EmitReferenceBindingToExpr(const Expr* E, QualType DestType, 111714c5cbf59cffee52275230922283a247de407712Anders Carlsson bool IsInitializer = false); 11181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11193aba09376c5f49c4c8d176109ea4835bc2c528eeAnders Carlsson llvm::Value *EmitCXXBindReferenceExpr(const CXXBindReferenceExpr *E); 11203aba09376c5f49c4c8d176109ea4835bc2c528eeAnders Carlsson 1121883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner //===--------------------------------------------------------------------===// 1122bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattner // Expression Emission 1123883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner //===--------------------------------------------------------------------===// 1124bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattner 1125bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattner // Expressions are broken into three classes: scalar, complex, aggregate. 11260dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 11270dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitScalarExpr - Emit the computation of the specified expression of LLVM 11280dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// scalar type, returning the result. 112914c5cbf59cffee52275230922283a247de407712Anders Carlsson llvm::Value *EmitScalarExpr(const Expr *E , bool IgnoreResultAssign = false); 11300dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 11313707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner /// EmitScalarConversion - Emit a conversion from the specified type to the 11323707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner /// specified destination type, both of which are LLVM scalar types. 11333707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner llvm::Value *EmitScalarConversion(llvm::Value *Src, QualType SrcTy, 11343707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner QualType DstTy); 11350dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 11364f1a7b380809b4ca19ad2daff61bc11cd1e979d8Chris Lattner /// EmitComplexToScalarConversion - Emit a conversion from the specified 11370dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// complex type to the specified destination type, where the destination type 11380dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// is an LLVM scalar type. 11394f1a7b380809b4ca19ad2daff61bc11cd1e979d8Chris Lattner llvm::Value *EmitComplexToScalarConversion(ComplexPairTy Src, QualType SrcTy, 11404f1a7b380809b4ca19ad2daff61bc11cd1e979d8Chris Lattner QualType DstTy); 11410dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 11420dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1143883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner /// EmitAggExpr - Emit the computation of the specified expression of 1144883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner /// aggregate type. The result is computed into DestPtr. Note that if 1145883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner /// DestPtr is null, the value of the aggregate expression is not needed. 114649d1cd5a09ed3df353371fd7f206674a85e0fb45Mike Stump void EmitAggExpr(const Expr *E, llvm::Value *DestPtr, bool VolatileDest, 114708c321380fff07d476a19daab6d29522c046cd49Fariborz Jahanian bool IgnoreResult = false, bool IsInitializer = false, 114808c321380fff07d476a19daab6d29522c046cd49Fariborz Jahanian bool RequiresGCollection = false); 11490dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1150082b02e8403d3ee9d2ded969fbe0e5d472f04cd8Fariborz Jahanian /// EmitGCMemmoveCollectable - Emit special API for structs with object 1151082b02e8403d3ee9d2ded969fbe0e5d472f04cd8Fariborz Jahanian /// pointers. 1152082b02e8403d3ee9d2ded969fbe0e5d472f04cd8Fariborz Jahanian void EmitGCMemmoveCollectable(llvm::Value *DestPtr, llvm::Value *SrcPtr, 115308c321380fff07d476a19daab6d29522c046cd49Fariborz Jahanian QualType Ty); 1154082b02e8403d3ee9d2ded969fbe0e5d472f04cd8Fariborz Jahanian 1155b6ef18a2b06d6760459e1756a61f79ff496cee19Chris Lattner /// EmitComplexExpr - Emit the computation of the specified expression of 115623b1cdb0b5e089468bb8475b8ec9287af67b4b59Chris Lattner /// complex type, returning the result. 11577f79f9be5916c51c35da4f126b7c12596a101607Mike Stump ComplexPairTy EmitComplexExpr(const Expr *E, bool IgnoreReal = false, 11587f79f9be5916c51c35da4f126b7c12596a101607Mike Stump bool IgnoreImag = false, 11597f79f9be5916c51c35da4f126b7c12596a101607Mike Stump bool IgnoreRealAssign = false, 11607f79f9be5916c51c35da4f126b7c12596a101607Mike Stump bool IgnoreImagAssign = false); 11610dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 116223b1cdb0b5e089468bb8475b8ec9287af67b4b59Chris Lattner /// EmitComplexExprIntoAddr - Emit the computation of the specified expression 116323b1cdb0b5e089468bb8475b8ec9287af67b4b59Chris Lattner /// of complex type, storing into the specified Value*. 1164190dbe203c2e892ac40f1786035c6c9be3f44a4cChris Lattner void EmitComplexExprIntoAddr(const Expr *E, llvm::Value *DestAddr, 1165190dbe203c2e892ac40f1786035c6c9be3f44a4cChris Lattner bool DestIsVolatile); 11667f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar 11677f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar /// StoreComplexToAddr - Store a complex number into the specified address. 11687f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar void StoreComplexToAddr(ComplexPairTy V, llvm::Value *DestAddr, 11697f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar bool DestIsVolatile); 11709b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// LoadComplexFromAddr - Load a complex number from the specified address. 11719b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner ComplexPairTy LoadComplexFromAddr(llvm::Value *SrcAddr, bool SrcIsVolatile); 11722621fd1d6d3c5eadcae246859f62738645df7540Chris Lattner 1173f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// CreateStaticBlockVarDecl - Create a zero-initialized LLVM global for a 1174f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// static block var decl. 1175761acc19d966a67f2175783d09412d6ac9463400Chris Lattner llvm::GlobalVariable *CreateStaticBlockVarDecl(const VarDecl &D, 1176761acc19d966a67f2175783d09412d6ac9463400Chris Lattner const char *Separator, 1177f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump llvm::GlobalValue::LinkageTypes Linkage); 1178761acc19d966a67f2175783d09412d6ac9463400Chris Lattner 1179761acc19d966a67f2175783d09412d6ac9463400Chris Lattner /// AddInitializerToGlobalBlockVarDecl - Add the initializer for 'D' to the 1180761acc19d966a67f2175783d09412d6ac9463400Chris Lattner /// global variable that has already been created for it. If the initializer 1181761acc19d966a67f2175783d09412d6ac9463400Chris Lattner /// has a different type than GV does, this may free GV and return a different 1182761acc19d966a67f2175783d09412d6ac9463400Chris Lattner /// one. Otherwise it just returns GV. 1183761acc19d966a67f2175783d09412d6ac9463400Chris Lattner llvm::GlobalVariable * 1184761acc19d966a67f2175783d09412d6ac9463400Chris Lattner AddInitializerToGlobalBlockVarDecl(const VarDecl &D, 1185761acc19d966a67f2175783d09412d6ac9463400Chris Lattner llvm::GlobalVariable *GV); 1186761acc19d966a67f2175783d09412d6ac9463400Chris Lattner 11870096acf421c4609ce7f43e8b05f8c5ca866d4611Daniel Dunbar 1188f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// EmitStaticCXXBlockVarDeclInit - Create the initializer for a C++ runtime 1189f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// initialized static block var decl. 11903b2e16b3d25f6b311dba2871e2a566c96238c3d2Anders Carlsson void EmitStaticCXXBlockVarDeclInit(const VarDecl &D, 11913b2e16b3d25f6b311dba2871e2a566c96238c3d2Anders Carlsson llvm::GlobalVariable *GV); 1192e1b29efab32d02e114046d33cca242a88585bf8aAnders Carlsson 11933b2e16b3d25f6b311dba2871e2a566c96238c3d2Anders Carlsson /// EmitCXXGlobalVarDeclInit - Create the initializer for a C++ 11943b2e16b3d25f6b311dba2871e2a566c96238c3d2Anders Carlsson /// variable with global storage. 11953b2e16b3d25f6b311dba2871e2a566c96238c3d2Anders Carlsson void EmitCXXGlobalVarDeclInit(const VarDecl &D, llvm::Constant *DeclPtr); 11963b2e16b3d25f6b311dba2871e2a566c96238c3d2Anders Carlsson 11973b2e16b3d25f6b311dba2871e2a566c96238c3d2Anders Carlsson /// EmitCXXGlobalDtorRegistration - Emits a call to register the global ptr 11983b2e16b3d25f6b311dba2871e2a566c96238c3d2Anders Carlsson /// with the C++ runtime so that its destructor will be called at exit. 119988f4280f6b60edcbdea6a38a3da8b17d66473ad6Fariborz Jahanian void EmitCXXGlobalDtorRegistration(llvm::Constant *DtorFn, 12003b2e16b3d25f6b311dba2871e2a566c96238c3d2Anders Carlsson llvm::Constant *DeclPtr); 12011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// GenerateCXXGlobalInitFunc - Generates code for initializing global 120389ed31d3f9eeb8ec77c284a5cf404a74bf5e7acfAnders Carlsson /// variables. 120489ed31d3f9eeb8ec77c284a5cf404a74bf5e7acfAnders Carlsson void GenerateCXXGlobalInitFunc(llvm::Function *Fn, 12056c6bda3b0b1d8adaac2ba3f4da7056e9f1eef52eEli Friedman llvm::Constant **Decls, 120689ed31d3f9eeb8ec77c284a5cf404a74bf5e7acfAnders Carlsson unsigned NumDecls); 12071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12086c6bda3b0b1d8adaac2ba3f4da7056e9f1eef52eEli Friedman void GenerateCXXGlobalVarDeclInitFunc(llvm::Function *Fn, const VarDecl *D); 12096c6bda3b0b1d8adaac2ba3f4da7056e9f1eef52eEli Friedman 121031ccf377f4a676eb6c205b47eef435de616d5e2dAnders Carlsson void EmitCXXConstructExpr(llvm::Value *Dest, const CXXConstructExpr *E); 12111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1212b58d017f2b9eeed33f2ab3ede968b89cf5296bf2Anders Carlsson RValue EmitCXXExprWithTemporaries(const CXXExprWithTemporaries *E, 12131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump llvm::Value *AggLoc = 0, 121414c5cbf59cffee52275230922283a247de407712Anders Carlsson bool IsAggLocVolatile = false, 121514c5cbf59cffee52275230922283a247de407712Anders Carlsson bool IsInitializer = false); 12161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1217756b5c4f9d52642d87d1948bee58f97a4f795b24Anders Carlsson void EmitCXXThrowExpr(const CXXThrowExpr *E); 1218c2e84ae9a6d25cea3e583c768e576b4c981ec028Mike Stump 12190ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar //===--------------------------------------------------------------------===// 12200ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar // Internal Helpers 12210ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar //===--------------------------------------------------------------------===// 12220dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 12230946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner /// ContainsLabel - Return true if the statement contains a label in it. If 12240946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner /// this statement is not executed normally, it not containing a label means 12250946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner /// that we can just remove the code. 12260946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner static bool ContainsLabel(const Stmt *S, bool IgnoreCaseStmts = false); 12270dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 12284bc0455d826e9634b7a68c0d06146edd633c9453Daniel Dunbar /// ConstantFoldsToSimpleInteger - If the specified expression does not fold 122931a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// to a constant, or if it does but contains a label, return 0. If it 123031a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// constant folds to 'true' and does not contain a label, return 1, if it 123131a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// constant folds to 'false' and does not contain a label, return -1. 123231a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner int ConstantFoldsToSimpleInteger(const Expr *Cond); 12330dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 123431a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// EmitBranchOnBoolExpr - Emit a branch on a boolean condition (e.g. for an 123531a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// if statement) to the specified blocks. Based on the condition, this might 123631a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// try to simplify the codegen of the conditional based on the branch. 12379bc47e29dce8f095be7a6d07dbb02a5a7a112949Chris Lattner void EmitBranchOnBoolExpr(const Expr *Cond, llvm::BasicBlock *TrueBlock, 12384bc0455d826e9634b7a68c0d06146edd633c9453Daniel Dunbar llvm::BasicBlock *FalseBlock); 1239be07f60131bc6f8d6696f4644df1ef667a1730d5Mike Stump 124015037caa1542bb810ad54c653aeb80f61df7b00cMike Stump /// getTrapBB - Create a basic block that will call the trap intrinsic. We'll 124115037caa1542bb810ad54c653aeb80f61df7b00cMike Stump /// generate a branch around the created basic block as necessary. 124215037caa1542bb810ad54c653aeb80f61df7b00cMike Stump llvm::BasicBlock* getTrapBB(); 124331a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattnerprivate: 12440dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 124529e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar void EmitReturnOfRValue(RValue RV, QualType Ty); 124629e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar 12475627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// ExpandTypeFromArgs - Reconstruct a structure of type \arg Ty 12485627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// from function arguments into \arg Dst. See ABIArgInfo::Expand. 12495627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// 12505627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// \param AI - The first function argument of the expansion. 12515627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// \return The argument following the last expanded function 12525627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// argument. 12530dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump llvm::Function::arg_iterator 12545627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar ExpandTypeFromArgs(QualType Ty, LValue Dst, 12555627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar llvm::Function::arg_iterator AI); 12565627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar 12570dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// ExpandTypeToArgs - Expand an RValue \arg Src, with the LLVM type for \arg 12580dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// Ty, into individual arguments on the provided vector \arg Args. See 12590dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// ABIArgInfo::Expand. 12600dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump void ExpandTypeToArgs(QualType Ty, RValue Src, 12615627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar llvm::SmallVector<llvm::Value*, 16> &Args); 1262c8c7b187adcd989e01a9fba1ebead6c2abd770c9Anders Carlsson 12631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump llvm::Value* EmitAsmInput(const AsmStmt &S, 1264b84e8a670ad1d00c0a34295c42ac700cdde04815Daniel Dunbar const TargetInfo::ConstraintInfo &Info, 1265c8c7b187adcd989e01a9fba1ebead6c2abd770c9Anders Carlsson const Expr *InputExpr, std::string &ConstraintStr); 12660dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1267c71c845fe77ee1f891d60232ec320912d88557eeAnders Carlsson /// EmitCleanupBlock - emits a single cleanup block. 1268c71c845fe77ee1f891d60232ec320912d88557eeAnders Carlsson void EmitCleanupBlock(); 1269c71c845fe77ee1f891d60232ec320912d88557eeAnders Carlsson 127087eaf17cc88516277e4389dfa15df93ecfdce559Anders Carlsson /// AddBranchFixup - adds a branch instruction to the list of fixups for the 127187eaf17cc88516277e4389dfa15df93ecfdce559Anders Carlsson /// current cleanup scope. 127287eaf17cc88516277e4389dfa15df93ecfdce559Anders Carlsson void AddBranchFixup(llvm::BranchInst *BI); 12730dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 12740139bb96494b4c4ba0824617d5d2495dc7e44c76Anders Carlsson /// EmitCallArg - Emit a single call argument. 12750139bb96494b4c4ba0824617d5d2495dc7e44c76Anders Carlsson RValue EmitCallArg(const Expr *E, QualType ArgType); 12761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12770139bb96494b4c4ba0824617d5d2495dc7e44c76Anders Carlsson /// EmitCallArgs - Emit call arguments for a function. 12781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// The CallArgTypeInfo parameter is used for iterating over the known 1279af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson /// argument types of the function being called. 1280af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson template<typename T> 1281af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson void EmitCallArgs(CallArgList& Args, const T* CallArgTypeInfo, 12820139bb96494b4c4ba0824617d5d2495dc7e44c76Anders Carlsson CallExpr::const_arg_iterator ArgBeg, 1283af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson CallExpr::const_arg_iterator ArgEnd) { 1284af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson CallExpr::const_arg_iterator Arg = ArgBeg; 1285af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson 1286af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson // First, use the argument types that the type info knows about 1287af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson if (CallArgTypeInfo) { 1288af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson for (typename T::arg_type_iterator I = CallArgTypeInfo->arg_type_begin(), 1289af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson E = CallArgTypeInfo->arg_type_end(); I != E; ++I, ++Arg) { 129044b0a3e858af7b19f489619e52cd58970611cd15Eli Friedman assert(Arg != ArgEnd && "Running over edge of argument list!"); 1291af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson QualType ArgType = *I; 1292af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson 1293af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson assert(getContext().getCanonicalType(ArgType.getNonReferenceType()). 12941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getTypePtr() == 12951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getContext().getCanonicalType(Arg->getType()).getTypePtr() && 1296af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson "type mismatch in call argument!"); 12971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Args.push_back(std::make_pair(EmitCallArg(*Arg, ArgType), 1299af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson ArgType)); 1300af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson } 13011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Either we've emitted all the call args, or we have a call to a 1303af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson // variadic function. 13041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert((Arg == ArgEnd || CallArgTypeInfo->isVariadic()) && 1305af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson "Extra arguments in non-variadic function!"); 13061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1307af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson } 13081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1309af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson // If we still have any arguments, emit them using the type of the argument. 1310af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson for (; Arg != ArgEnd; ++Arg) { 1311af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson QualType ArgType = Arg->getType(); 1312af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson Args.push_back(std::make_pair(EmitCallArg(*Arg, ArgType), 1313af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson ArgType)); 1314af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson } 1315af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson } 13165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 13171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1318af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson 13195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace CodeGen 13205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace clang 13215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#endif 1323