CodeGenFunction.h revision 44ec82b4a1597802f5bf17721481b8c265bc8dc5
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; 58492c4f998d848673d3d6c9e6416115df4036a71dJohn McCall class TargetCodeGenInfo; 59c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class VarDecl; 6016f0049415ec596504891259e2a83e19871c0d52Chris Lattner class ObjCForCollectionStmt; 6116f0049415ec596504891259e2a83e19871c0d52Chris Lattner class ObjCAtTryStmt; 6216f0049415ec596504891259e2a83e19871c0d52Chris Lattner class ObjCAtThrowStmt; 6316f0049415ec596504891259e2a83e19871c0d52Chris Lattner class ObjCAtSynchronizedStmt; 645549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek 655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace CodeGen { 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 955ca2084cf9b529563209429857f01fdae9dcdfa5Daniel Dunbar /// ReturnBlock - Unified return block. 965ca2084cf9b529563209429857f01fdae9dcdfa5Daniel Dunbar llvm::BasicBlock *ReturnBlock; 970dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// ReturnValue - The temporary alloca to hold the return value. This is null 980dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// iff the function has no return value. 99b17daf9ab790ae71aacad2cc4aa11cd8d86c25d1Eli Friedman llvm::Value *ReturnValue; 1000dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// AllocaInsertPoint - This is an instruction in the entry block before which 1025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// we prefer to insert allocas. 103481769b5dc102b0256b35581e787909ad5edfab5Chris Lattner llvm::AssertingVH<llvm::Instruction> AllocaInsertPt; 1040ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar 1055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const llvm::Type *LLVMIntTy; 1067b66000bdfc2684351fb03208e672f23012ed569Hartmut Kaiser uint32_t LLVMPointerWidth; 10718ccc7776ad6288c5f630dc7967fb99d099c9cd9Daniel Dunbar 108d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump bool Exceptions; 1099c276ae0f24d4cee8f7954069d4b8eae45d0447dMike Stump bool CatchUndefined; 11018ccc7776ad6288c5f630dc7967fb99d099c9cd9Daniel Dunbarpublic: 111fa1f756f88f4e6f3da2673082fdc1e8f54bccd6fAnders Carlsson /// ObjCEHValueStack - Stack of Objective-C exception values, used for 112fa1f756f88f4e6f3da2673082fdc1e8f54bccd6fAnders Carlsson /// rethrows. 113273558fbd891a0872e620e0d3d109b92c1160d72Anders Carlsson llvm::SmallVector<llvm::Value*, 8> ObjCEHValueStack; 1140dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1156fc559136b8ef98bfb824a0fd49df385405f2879Anders Carlsson /// PushCleanupBlock - Push a new cleanup entry on the stack and set the 1166fc559136b8ef98bfb824a0fd49df385405f2879Anders Carlsson /// passed in block as the cleanup block. 1177799621ad7d16f3c6a1aeda024312d63ecd77777Fariborz Jahanian void PushCleanupBlock(llvm::BasicBlock *CleanupEntryBlock, 118d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump llvm::BasicBlock *CleanupExitBlock, 119d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump llvm::BasicBlock *PreviousInvokeDest, 12099533834ba8f3658559f334e68a518ebb6388ceaMike Stump bool EHOnly = false); 121d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump void PushCleanupBlock(llvm::BasicBlock *CleanupEntryBlock) { 122d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump PushCleanupBlock(CleanupEntryBlock, 0, getInvokeDest(), false); 123d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump } 124bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson 1250dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// CleanupBlockInfo - A struct representing a popped cleanup block. 126bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson struct CleanupBlockInfo { 1277799621ad7d16f3c6a1aeda024312d63ecd77777Fariborz Jahanian /// CleanupEntryBlock - the cleanup entry block 128bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson llvm::BasicBlock *CleanupBlock; 1290dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1300dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// SwitchBlock - the block (if any) containing the switch instruction used 1310dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// for jumping to the final destination. 132bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson llvm::BasicBlock *SwitchBlock; 1330dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 134bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson /// EndBlock - the default destination for the switch instruction. 135bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson llvm::BasicBlock *EndBlock; 1360dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 13799533834ba8f3658559f334e68a518ebb6388ceaMike Stump /// EHOnly - True iff this cleanup should only be performed on the 13899533834ba8f3658559f334e68a518ebb6388ceaMike Stump /// exceptional edge. 13999533834ba8f3658559f334e68a518ebb6388ceaMike Stump bool EHOnly; 14099533834ba8f3658559f334e68a518ebb6388ceaMike Stump 1410dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump CleanupBlockInfo(llvm::BasicBlock *cb, llvm::BasicBlock *sb, 14299533834ba8f3658559f334e68a518ebb6388ceaMike Stump llvm::BasicBlock *eb, bool ehonly = false) 14399533834ba8f3658559f334e68a518ebb6388ceaMike Stump : CleanupBlock(cb), SwitchBlock(sb), EndBlock(eb), EHOnly(ehonly) {} 144bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson }; 145bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson 146d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump /// EHCleanupBlock - RAII object that will create a cleanup block for the 147d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump /// exceptional edge and set the insert point to that block. When destroyed, 148d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump /// it creates the cleanup edge and sets the insert point to the previous 149d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump /// block. 150d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump class EHCleanupBlock { 151d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump CodeGenFunction& CGF; 152d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump llvm::BasicBlock *Cont; 153d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump llvm::BasicBlock *CleanupHandler; 154d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump llvm::BasicBlock *CleanupEntryBB; 155d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump llvm::BasicBlock *PreviousInvokeDest; 156d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump public: 157d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump EHCleanupBlock(CodeGenFunction &cgf) 158d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump : CGF(cgf), Cont(CGF.createBasicBlock("cont")), 159d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump CleanupHandler(CGF.createBasicBlock("ehcleanup")), 160d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump CleanupEntryBB(CGF.createBasicBlock("ehcleanup.rest")), 161d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump PreviousInvokeDest(CGF.getInvokeDest()) { 162d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump CGF.EmitBranch(Cont); 16320d3a53cef96ed1d42ec82a313e8453cfef6512bMike Stump llvm::BasicBlock *TerminateHandler = CGF.getTerminateHandler(); 164d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump CGF.Builder.SetInsertPoint(CleanupEntryBB); 16520d3a53cef96ed1d42ec82a313e8453cfef6512bMike Stump CGF.setInvokeDest(TerminateHandler); 166d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump } 167d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump ~EHCleanupBlock(); 168d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump }; 169d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump 170bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson /// PopCleanupBlock - Will pop the cleanup entry on the stack, process all 1710dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// branch fixups and return a block info struct with the switch block and end 172d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump /// block. This will also reset the invoke handler to the previous value 173d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump /// from when the cleanup block was created. 174bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson CleanupBlockInfo PopCleanupBlock(); 1750dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 176f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// DelayedCleanupBlock - RAII object that will create a cleanup block and set 177f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// the insert point to that block. When destructed, it sets the insert point 178f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// to the previous block and pushes a new cleanup entry on the stack. 179d5782d5013ef5dbe033d1c3d1334e01c5996e06bDouglas Gregor class DelayedCleanupBlock { 1800d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson CodeGenFunction& CGF; 1810d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson llvm::BasicBlock *CurBB; 1827799621ad7d16f3c6a1aeda024312d63ecd77777Fariborz Jahanian llvm::BasicBlock *CleanupEntryBB; 1837799621ad7d16f3c6a1aeda024312d63ecd77777Fariborz Jahanian llvm::BasicBlock *CleanupExitBB; 184d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump llvm::BasicBlock *CurInvokeDest; 18599533834ba8f3658559f334e68a518ebb6388ceaMike Stump bool EHOnly; 1867799621ad7d16f3c6a1aeda024312d63ecd77777Fariborz Jahanian 1870d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson public: 18899533834ba8f3658559f334e68a518ebb6388ceaMike Stump DelayedCleanupBlock(CodeGenFunction &cgf, bool ehonly = false) 1897799621ad7d16f3c6a1aeda024312d63ecd77777Fariborz Jahanian : CGF(cgf), CurBB(CGF.Builder.GetInsertBlock()), 190d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump CleanupEntryBB(CGF.createBasicBlock("cleanup")), CleanupExitBB(0), 191d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump CurInvokeDest(CGF.getInvokeDest()), 192d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump EHOnly(ehonly) { 1937799621ad7d16f3c6a1aeda024312d63ecd77777Fariborz Jahanian CGF.Builder.SetInsertPoint(CleanupEntryBB); 1940d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson } 1950dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1967799621ad7d16f3c6a1aeda024312d63ecd77777Fariborz Jahanian llvm::BasicBlock *getCleanupExitBlock() { 1977799621ad7d16f3c6a1aeda024312d63ecd77777Fariborz Jahanian if (!CleanupExitBB) 1987799621ad7d16f3c6a1aeda024312d63ecd77777Fariborz Jahanian CleanupExitBB = CGF.createBasicBlock("cleanup.exit"); 1997799621ad7d16f3c6a1aeda024312d63ecd77777Fariborz Jahanian return CleanupExitBB; 2007799621ad7d16f3c6a1aeda024312d63ecd77777Fariborz Jahanian } 2017799621ad7d16f3c6a1aeda024312d63ecd77777Fariborz Jahanian 202d5782d5013ef5dbe033d1c3d1334e01c5996e06bDouglas Gregor ~DelayedCleanupBlock() { 203d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump CGF.PushCleanupBlock(CleanupEntryBB, CleanupExitBB, CurInvokeDest, 204d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump EHOnly); 205d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar // FIXME: This is silly, move this into the builder. 206d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar if (CurBB) 207d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar CGF.Builder.SetInsertPoint(CurBB); 208d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar else 209d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar CGF.Builder.ClearInsertionPoint(); 2100d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson } 2110d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson }; 2120d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson 21301234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor /// \brief Enters a new scope for capturing cleanups, all of which will be 21401234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor /// executed once the scope is exited. 21501234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor class CleanupScope { 21601234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor CodeGenFunction& CGF; 21701234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor size_t CleanupStackDepth; 21801234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor bool OldDidCallStackSave; 2195656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor bool PerformCleanup; 22001234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor 22101234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor CleanupScope(const CleanupScope &); // DO NOT IMPLEMENT 22201234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor CleanupScope &operator=(const CleanupScope &); // DO NOT IMPLEMENT 22301234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor 22401234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor public: 22501234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor /// \brief Enter a new cleanup scope. 2265656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor explicit CleanupScope(CodeGenFunction &CGF) 2275656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor : CGF(CGF), PerformCleanup(true) 2285656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor { 22901234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor CleanupStackDepth = CGF.CleanupEntries.size(); 23001234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor OldDidCallStackSave = CGF.DidCallStackSave; 23101234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor } 23201234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor 23301234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor /// \brief Exit this cleanup scope, emitting any accumulated 23401234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor /// cleanups. 23501234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor ~CleanupScope() { 2365656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor if (PerformCleanup) { 2375656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor CGF.DidCallStackSave = OldDidCallStackSave; 2385656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor CGF.EmitCleanupBlocks(CleanupStackDepth); 2395656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor } 2405656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor } 2415656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor 2425656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor /// \brief Determine whether this scope requires any cleanups. 2435656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor bool requiresCleanups() const { 2445656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor return CGF.CleanupEntries.size() > CleanupStackDepth; 2455656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor } 2465656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor 2475656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor /// \brief Force the emission of cleanups now, instead of waiting 2485656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor /// until this object is destroyed. 2495656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor void ForceCleanup() { 2505656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor assert(PerformCleanup && "Already forced cleanup"); 25101234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor CGF.DidCallStackSave = OldDidCallStackSave; 25201234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor CGF.EmitCleanupBlocks(CleanupStackDepth); 2535656e14d91405417182171a705ed3e3d2d6d7aa3Douglas Gregor PerformCleanup = false; 25401234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor } 25501234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor }; 25601234bbc1cb94946df8046ad95e17537082b4f71Douglas Gregor 25744ec82b4a1597802f5bf17721481b8c265bc8dc5Anders Carlsson /// CXXTemporariesCleanupScope - Enters a new scope for catching live 25844ec82b4a1597802f5bf17721481b8c265bc8dc5Anders Carlsson /// temporaries, all of which will be popped once the scope is exited. 25944ec82b4a1597802f5bf17721481b8c265bc8dc5Anders Carlsson class CXXTemporariesCleanupScope { 26044ec82b4a1597802f5bf17721481b8c265bc8dc5Anders Carlsson CodeGenFunction &CGF; 26144ec82b4a1597802f5bf17721481b8c265bc8dc5Anders Carlsson size_t NumLiveTemporaries; 26244ec82b4a1597802f5bf17721481b8c265bc8dc5Anders Carlsson 26344ec82b4a1597802f5bf17721481b8c265bc8dc5Anders Carlsson // DO NOT IMPLEMENT 26444ec82b4a1597802f5bf17721481b8c265bc8dc5Anders Carlsson CXXTemporariesCleanupScope(const CXXTemporariesCleanupScope &); 26544ec82b4a1597802f5bf17721481b8c265bc8dc5Anders Carlsson CXXTemporariesCleanupScope &operator=(const CXXTemporariesCleanupScope &); 26644ec82b4a1597802f5bf17721481b8c265bc8dc5Anders Carlsson 26744ec82b4a1597802f5bf17721481b8c265bc8dc5Anders Carlsson public: 26844ec82b4a1597802f5bf17721481b8c265bc8dc5Anders Carlsson explicit CXXTemporariesCleanupScope(CodeGenFunction &CGF) 26944ec82b4a1597802f5bf17721481b8c265bc8dc5Anders Carlsson : CGF(CGF), NumLiveTemporaries(CGF.LiveTemporaries.size()) { } 27044ec82b4a1597802f5bf17721481b8c265bc8dc5Anders Carlsson 27144ec82b4a1597802f5bf17721481b8c265bc8dc5Anders Carlsson ~CXXTemporariesCleanupScope() { 27244ec82b4a1597802f5bf17721481b8c265bc8dc5Anders Carlsson while (CGF.LiveTemporaries.size() > NumLiveTemporaries) 27344ec82b4a1597802f5bf17721481b8c265bc8dc5Anders Carlsson CGF.PopCXXTemporary(); 27444ec82b4a1597802f5bf17721481b8c265bc8dc5Anders Carlsson } 27544ec82b4a1597802f5bf17721481b8c265bc8dc5Anders Carlsson }; 27644ec82b4a1597802f5bf17721481b8c265bc8dc5Anders Carlsson 27744ec82b4a1597802f5bf17721481b8c265bc8dc5Anders Carlsson 278c71c845fe77ee1f891d60232ec320912d88557eeAnders Carlsson /// EmitCleanupBlocks - Takes the old cleanup stack size and emits the cleanup 279c71c845fe77ee1f891d60232ec320912d88557eeAnders Carlsson /// blocks that have been added. 280c71c845fe77ee1f891d60232ec320912d88557eeAnders Carlsson void EmitCleanupBlocks(size_t OldCleanupStackSize); 281c71c845fe77ee1f891d60232ec320912d88557eeAnders Carlsson 28287eaf17cc88516277e4389dfa15df93ecfdce559Anders Carlsson /// EmitBranchThroughCleanup - Emit a branch from the current insert block 28387eaf17cc88516277e4389dfa15df93ecfdce559Anders Carlsson /// through the cleanup handling code (if any) and then on to \arg Dest. 28487eaf17cc88516277e4389dfa15df93ecfdce559Anders Carlsson /// 2850dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// FIXME: Maybe this should really be in EmitBranch? Don't we always want 28687eaf17cc88516277e4389dfa15df93ecfdce559Anders Carlsson /// this behavior for branches? 28787eaf17cc88516277e4389dfa15df93ecfdce559Anders Carlsson void EmitBranchThroughCleanup(llvm::BasicBlock *Dest); 2880dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 28972119a887c4af39c90f10b6bdc158389071f42eaAnders Carlsson /// BeginConditionalBranch - Should be called before a conditional part of an 290a36bf8f74180e834c6bf2db867796fd5338495abAnders Carlsson /// expression is emitted. For example, before the RHS of the expression below 291a36bf8f74180e834c6bf2db867796fd5338495abAnders Carlsson /// is emitted: 2921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// 2931d8475067d5b62ed5a57ba93862e23f3096a8bddAnders Carlsson /// b && f(T()); 2941d8475067d5b62ed5a57ba93862e23f3096a8bddAnders Carlsson /// 295a36bf8f74180e834c6bf2db867796fd5338495abAnders Carlsson /// This is used to make sure that any temporaries created in the conditional 2961d8475067d5b62ed5a57ba93862e23f3096a8bddAnders Carlsson /// branch are only destroyed if the branch is taken. 29772119a887c4af39c90f10b6bdc158389071f42eaAnders Carlsson void BeginConditionalBranch() { 298a36bf8f74180e834c6bf2db867796fd5338495abAnders Carlsson ++ConditionalBranchLevel; 299a36bf8f74180e834c6bf2db867796fd5338495abAnders Carlsson } 3001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 30172119a887c4af39c90f10b6bdc158389071f42eaAnders Carlsson /// EndConditionalBranch - Should be called after a conditional part of an 302a36bf8f74180e834c6bf2db867796fd5338495abAnders Carlsson /// expression has been emitted. 30372119a887c4af39c90f10b6bdc158389071f42eaAnders Carlsson void EndConditionalBranch() { 30408e9e453f40aff95a59bd67db49b8f050765e1f0Anders Carlsson assert(ConditionalBranchLevel != 0 && 30508e9e453f40aff95a59bd67db49b8f050765e1f0Anders Carlsson "Conditional branch mismatch!"); 30608e9e453f40aff95a59bd67db49b8f050765e1f0Anders Carlsson 307a36bf8f74180e834c6bf2db867796fd5338495abAnders Carlsson --ConditionalBranchLevel; 308a36bf8f74180e834c6bf2db867796fd5338495abAnders Carlsson } 3091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3107f02f721d48772e4eee4fccd8af4f800be1bbc1eChris Lattnerprivate: 311d9becd1846e2c72bf6ad283faa1b048f33dd3afeChris Lattner CGDebugInfo *DebugInfo; 31209429b962811f2c0a7a81a1b0a89f96f5878b20cMike Stump 313f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// IndirectBranch - The first time an indirect goto is seen we create a block 314f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// with an indirect branch. Every time we see the address of a label taken, 315f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// we add the label to the indirect goto. Every subsequent indirect goto is 316f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// codegen'd as a jump to the IndirectBranch's basic block. 317d9becd1846e2c72bf6ad283faa1b048f33dd3afeChris Lattner llvm::IndirectBrInst *IndirectBranch; 3180ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar 3190dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// LocalDeclMap - This keeps track of the LLVM allocas or globals for local C 3200dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// decls. 3215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::DenseMap<const Decl*, llvm::Value*> LocalDeclMap; 3225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// LabelMap - This keeps track of the LLVM basic block for each C label. 3245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::DenseMap<const LabelStmt*, llvm::BasicBlock*> LabelMap; 3250dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 3260dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // BreakContinueStack - This keeps track of where break and continue 327e4b6d342c29d5cb9d311756100df1603810fa892Anders Carlsson // statements should jump to. 328da13870e99fe33934b2122f06528a5063f78ae4cChris Lattner struct BreakContinue { 329e4b6d342c29d5cb9d311756100df1603810fa892Anders Carlsson BreakContinue(llvm::BasicBlock *bb, llvm::BasicBlock *cb) 330e4b6d342c29d5cb9d311756100df1603810fa892Anders Carlsson : BreakBlock(bb), ContinueBlock(cb) {} 3310dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 332da13870e99fe33934b2122f06528a5063f78ae4cChris Lattner llvm::BasicBlock *BreakBlock; 333da13870e99fe33934b2122f06528a5063f78ae4cChris Lattner llvm::BasicBlock *ContinueBlock; 3340dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump }; 335da13870e99fe33934b2122f06528a5063f78ae4cChris Lattner llvm::SmallVector<BreakContinue, 8> BreakContinueStack; 33618ccc7776ad6288c5f630dc7967fb99d099c9cd9Daniel Dunbar 3370dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// SwitchInsn - This is nearest current switch instruction. It is null if if 3380dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// current context is not in a switch. 33951b09f2c528c8460b5465c676173324e44176d62Devang Patel llvm::SwitchInst *SwitchInsn; 34051b09f2c528c8460b5465c676173324e44176d62Devang Patel 3410dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// CaseRangeBlock - This block holds if condition check for last case 34280fd5f96e6805ac43aab99faabd5b4c8b19551b7Devang Patel /// statement range in current switch instruction. 343c049e4f406a7f7179eba98659044a32508e53289Devang Patel llvm::BasicBlock *CaseRangeBlock; 344c049e4f406a7f7179eba98659044a32508e53289Devang Patel 3459834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar /// InvokeDest - This is the nearest exception target for calls 3469834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar /// which can unwind, when exceptions are being used. 3479834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar llvm::BasicBlock *InvokeDest; 3489834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar 3490dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // VLASizeMap - This keeps track of the associated size for each VLA type. 350bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman // We track this by the size expression rather than the type itself because 351bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman // in certain situations, like a const qualifier applied to an VLA typedef, 352bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman // multiple VLA types can share the same size expression. 3530dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // FIXME: Maybe this could be a stack of maps that is pushed/popped as we 3540dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // enter/leave scopes. 355bbed6b964414145b29e7b60b3e538093734ea3f8Eli Friedman llvm::DenseMap<const Expr*, llvm::Value*> VLASizeMap; 3560dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 3574cc1a4703363ff940b6273aeef9d96a87edeb04bAnders Carlsson /// DidCallStackSave - Whether llvm.stacksave has been called. Used to avoid 3584cc1a4703363ff940b6273aeef9d96a87edeb04bAnders Carlsson /// calling llvm.stacksave for multiple VLAs in the same scope. 3594cc1a4703363ff940b6273aeef9d96a87edeb04bAnders Carlsson bool DidCallStackSave; 36009429b962811f2c0a7a81a1b0a89f96f5878b20cMike Stump 3616ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson struct CleanupEntry { 3627799621ad7d16f3c6a1aeda024312d63ecd77777Fariborz Jahanian /// CleanupEntryBlock - The block of code that does the actual cleanup. 3637799621ad7d16f3c6a1aeda024312d63ecd77777Fariborz Jahanian llvm::BasicBlock *CleanupEntryBlock; 3640dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 3657799621ad7d16f3c6a1aeda024312d63ecd77777Fariborz Jahanian /// CleanupExitBlock - The cleanup exit block. 3667799621ad7d16f3c6a1aeda024312d63ecd77777Fariborz Jahanian llvm::BasicBlock *CleanupExitBlock; 3677799621ad7d16f3c6a1aeda024312d63ecd77777Fariborz Jahanian 3686ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson /// Blocks - Basic blocks that were emitted in the current cleanup scope. 369bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson std::vector<llvm::BasicBlock *> Blocks; 3706ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson 3716ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson /// BranchFixups - Branch instructions to basic blocks that haven't been 3726ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson /// inserted into the current function yet. 373bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson std::vector<llvm::BranchInst *> BranchFixups; 3746ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson 375d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump /// PreviousInvokeDest - The invoke handler from the start of the cleanup 376d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump /// region. 377d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump llvm::BasicBlock *PreviousInvokeDest; 378d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump 37999533834ba8f3658559f334e68a518ebb6388ceaMike Stump /// EHOnly - Perform this only on the exceptional edge, not the main edge. 38099533834ba8f3658559f334e68a518ebb6388ceaMike Stump bool EHOnly; 38199533834ba8f3658559f334e68a518ebb6388ceaMike Stump 3827799621ad7d16f3c6a1aeda024312d63ecd77777Fariborz Jahanian explicit CleanupEntry(llvm::BasicBlock *CleanupEntryBlock, 383d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump llvm::BasicBlock *CleanupExitBlock, 384d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump llvm::BasicBlock *PreviousInvokeDest, 385d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump bool ehonly) 386d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump : CleanupEntryBlock(CleanupEntryBlock), 38799533834ba8f3658559f334e68a518ebb6388ceaMike Stump CleanupExitBlock(CleanupExitBlock), 388d88ea5687968640ada2bc5a10211cbeb68a671ecMike Stump PreviousInvokeDest(PreviousInvokeDest), 38999533834ba8f3658559f334e68a518ebb6388ceaMike Stump EHOnly(ehonly) {} 3906ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson }; 3910dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 3926ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson /// CleanupEntries - Stack of cleanup entries. 3936ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson llvm::SmallVector<CleanupEntry, 8> CleanupEntries; 3946ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson 395bd6fa3d032acd7eafc6c10827c41103df45beab7Anders Carlsson typedef llvm::DenseMap<llvm::BasicBlock*, size_t> BlockScopeMap; 396bd6fa3d032acd7eafc6c10827c41103df45beab7Anders Carlsson 397bd6fa3d032acd7eafc6c10827c41103df45beab7Anders Carlsson /// BlockScopes - Map of which "cleanup scope" scope basic blocks have. 398bd6fa3d032acd7eafc6c10827c41103df45beab7Anders Carlsson BlockScopeMap BlockScopes; 3990dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 400f6c56e2323c3f973253805a2f35629f3253ebed4Anders Carlsson /// CXXThisDecl - When generating code for a C++ member function, 401f6c56e2323c3f973253805a2f35629f3253ebed4Anders Carlsson /// this will hold the implicit 'this' declaration. 4022b77ba8bc7a842829ad9193816dc1d7d5e9c5be6Anders Carlsson ImplicitParamDecl *CXXThisDecl; 4032504941793b549323f9d29c62507cf21d865fadeJohn McCall llvm::Value *CXXThisValue; 4041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 405f6c56e2323c3f973253805a2f35629f3253ebed4Anders Carlsson /// CXXVTTDecl - When generating code for a base object constructor or 406f6c56e2323c3f973253805a2f35629f3253ebed4Anders Carlsson /// base object destructor with virtual bases, this will hold the implicit 407f6c56e2323c3f973253805a2f35629f3253ebed4Anders Carlsson /// VTT parameter. 408f6c56e2323c3f973253805a2f35629f3253ebed4Anders Carlsson ImplicitParamDecl *CXXVTTDecl; 4092504941793b549323f9d29c62507cf21d865fadeJohn McCall llvm::Value *CXXVTTValue; 410f6c56e2323c3f973253805a2f35629f3253ebed4Anders Carlsson 411e8b5578fcc2a3ffb90986f95f2c9127a9a08e34bAnders Carlsson /// CXXLiveTemporaryInfo - Holds information about a live C++ temporary. 412e8b5578fcc2a3ffb90986f95f2c9127a9a08e34bAnders Carlsson struct CXXLiveTemporaryInfo { 413e8b5578fcc2a3ffb90986f95f2c9127a9a08e34bAnders Carlsson /// Temporary - The live temporary. 414e8b5578fcc2a3ffb90986f95f2c9127a9a08e34bAnders Carlsson const CXXTemporary *Temporary; 4151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 416e8b5578fcc2a3ffb90986f95f2c9127a9a08e34bAnders Carlsson /// ThisPtr - The pointer to the temporary. 417e8b5578fcc2a3ffb90986f95f2c9127a9a08e34bAnders Carlsson llvm::Value *ThisPtr; 4181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 419e8b5578fcc2a3ffb90986f95f2c9127a9a08e34bAnders Carlsson /// DtorBlock - The destructor block. 420e8b5578fcc2a3ffb90986f95f2c9127a9a08e34bAnders Carlsson llvm::BasicBlock *DtorBlock; 4211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 422f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// CondPtr - If this is a conditional temporary, this is the pointer to the 423f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// condition variable that states whether the destructor should be called 424f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// or not. 425e8b5578fcc2a3ffb90986f95f2c9127a9a08e34bAnders Carlsson llvm::Value *CondPtr; 4261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 427e8b5578fcc2a3ffb90986f95f2c9127a9a08e34bAnders Carlsson CXXLiveTemporaryInfo(const CXXTemporary *temporary, 428f4b8fea84a6b1ef74cf8fe572918439e34935e51Anders Carlsson llvm::Value *thisptr, llvm::BasicBlock *dtorblock, 429f4b8fea84a6b1ef74cf8fe572918439e34935e51Anders Carlsson llvm::Value *condptr) 4301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump : Temporary(temporary), ThisPtr(thisptr), DtorBlock(dtorblock), 431e8b5578fcc2a3ffb90986f95f2c9127a9a08e34bAnders Carlsson CondPtr(condptr) { } 432e8b5578fcc2a3ffb90986f95f2c9127a9a08e34bAnders Carlsson }; 4331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 434e8b5578fcc2a3ffb90986f95f2c9127a9a08e34bAnders Carlsson llvm::SmallVector<CXXLiveTemporaryInfo, 4> LiveTemporaries; 4351d8475067d5b62ed5a57ba93862e23f3096a8bddAnders Carlsson 436a36bf8f74180e834c6bf2db867796fd5338495abAnders Carlsson /// ConditionalBranchLevel - Contains the nesting level of the current 437a36bf8f74180e834c6bf2db867796fd5338495abAnders Carlsson /// conditional branch. This is used so that we know if a temporary should be 438a36bf8f74180e834c6bf2db867796fd5338495abAnders Carlsson /// destroyed conditionally. 439a36bf8f74180e834c6bf2db867796fd5338495abAnders Carlsson unsigned ConditionalBranchLevel; 4401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4417dfa4079f4b37507048b19bfc693d3b015d9dd11Anders Carlsson 4427dfa4079f4b37507048b19bfc693d3b015d9dd11Anders Carlsson /// ByrefValueInfoMap - For each __block variable, contains a pair of the LLVM 4437dfa4079f4b37507048b19bfc693d3b015d9dd11Anders Carlsson /// type as well as the field number that contains the actual data. 4447dfa4079f4b37507048b19bfc693d3b015d9dd11Anders Carlsson llvm::DenseMap<const ValueDecl *, std::pair<const llvm::Type *, 4457dfa4079f4b37507048b19bfc693d3b015d9dd11Anders Carlsson unsigned> > ByRefValueInfo; 4467dfa4079f4b37507048b19bfc693d3b015d9dd11Anders Carlsson 4477dfa4079f4b37507048b19bfc693d3b015d9dd11Anders Carlsson /// getByrefValueFieldNumber - Given a declaration, returns the LLVM field 4487dfa4079f4b37507048b19bfc693d3b015d9dd11Anders Carlsson /// number that holds the value. 4497dfa4079f4b37507048b19bfc693d3b015d9dd11Anders Carlsson unsigned getByRefValueLLVMField(const ValueDecl *VD) const; 450182f383db1782af752ecaf607fdff72a8542088bMike Stump 451182f383db1782af752ecaf607fdff72a8542088bMike Stump llvm::BasicBlock *TerminateHandler; 45215037caa1542bb810ad54c653aeb80f61df7b00cMike Stump llvm::BasicBlock *TrapBB; 453940670512d7c3d93389bb38a426abcb7ef44271eEli Friedman 454940670512d7c3d93389bb38a426abcb7ef44271eEli Friedman int UniqueAggrDestructorCount; 4555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 4565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CodeGenFunction(CodeGenModule &cgm); 4570dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 4585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ASTContext &getContext() const; 459e896d98548b02223c7740d807a0aa6e20fba7079Anders Carlsson CGDebugInfo *getDebugInfo() { return DebugInfo; } 4605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4619834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar llvm::BasicBlock *getInvokeDest() { return InvokeDest; } 4629834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar void setInvokeDest(llvm::BasicBlock *B) { InvokeDest = B; } 4639834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar 464a1cf15f4680e5cf39e72e28c5ea854fcba792e84Owen Anderson llvm::LLVMContext &getLLVMContext() { return VMContext; } 46569243825cb5c91ec7207256aa57ae327cfaf8cb2Owen Anderson 4669834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar //===--------------------------------------------------------------------===// 4679834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar // Objective-C 4689834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar //===--------------------------------------------------------------------===// 4699834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar 470391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner void GenerateObjCMethod(const ObjCMethodDecl *OMD); 471af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 4720dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump void StartObjCMethod(const ObjCMethodDecl *MD, 473679a502d462ef819e6175b58e255ca3f3391e7cfFariborz Jahanian const ObjCContainerDecl *CD); 474af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 4750dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// GenerateObjCGetter - Synthesize an Objective-C property getter function. 476fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian void GenerateObjCGetter(ObjCImplementationDecl *IMP, 477fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian const ObjCPropertyImplDecl *PID); 478af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 4790dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// GenerateObjCSetter - Synthesize an Objective-C property setter function 4800dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// for the given property. 481fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian void GenerateObjCSetter(ObjCImplementationDecl *IMP, 482fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian const ObjCPropertyImplDecl *PID); 483af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 4844e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump //===--------------------------------------------------------------------===// 4854e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump // Block Bits 4864e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump //===--------------------------------------------------------------------===// 4874e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump 4888a2b4b1c5b960710db95e9b296d9a600aee37c00Mike Stump llvm::Value *BuildBlockLiteralTmp(const BlockExpr *); 4892a7eb28397148079cbc8e54e8a3871ef01c4f4bcBlaine Garst llvm::Constant *BuildDescriptorBlockDecl(const BlockExpr *, 4902a7eb28397148079cbc8e54e8a3871ef01c4f4bcBlaine Garst bool BlockHasCopyDispose, 491199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck CharUnits Size, 4920892099dbc640720400a1d9decd2733a09d733e5Mike Stump const llvm::StructType *, 4930892099dbc640720400a1d9decd2733a09d733e5Mike Stump std::vector<HelperInfo> *); 4944e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump 495161d36de7ee686b09525bb919ad1b20592e499fcChris Lattner llvm::Function *GenerateBlockFunction(const BlockExpr *BExpr, 4964e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump const BlockInfo& Info, 4976cc88f78fd36d3511b89412b193494b3e423cbffMike Stump const Decl *OuterFuncDecl, 4987f28a9c37e67ae16396042ad9c085830969daf29Mike Stump llvm::DenseMap<const Decl*, llvm::Value*> ldm, 49930a8a272f091054ce92b9daa1992bcff887c3ee4Ken Dyck CharUnits &Size, CharUnits &Align, 50000470a1c4c44c5ed26bad9a38b4d3904b02d7a28Mike Stump llvm::SmallVector<const Expr *, 8> &subBlockDeclRefDecls, 50100470a1c4c44c5ed26bad9a38b4d3904b02d7a28Mike Stump bool &subBlockHasCopyDispose); 5024e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump 5036cc88f78fd36d3511b89412b193494b3e423cbffMike Stump void BlockForwardSelf(); 5044e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump llvm::Value *LoadBlockStruct(); 5054e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump 506199c3d6cd16aebbb9c7f0d42af9d922c9628bf70Ken Dyck CharUnits AllocateBlockDecl(const BlockDeclRefExpr *E); 507a99038c0757a836c6faeeddaa5dfd249b32f6e9eMike Stump llvm::Value *GetAddrOfBlockDecl(const BlockDeclRefExpr *E); 5089ad5513b0f9d3999705659fb1aeb0e6c53455f43Anders Carlsson const llvm::Type *BuildByRefType(const ValueDecl *D); 509dab514fc30242c7afd6c03956e46136c400fb0d3Mike Stump 5100ff8bafde95f6fa51ccea70738c1b99db870bddcAnders Carlsson void GenerateCode(GlobalDecl GD, llvm::Function *Fn); 5110ff8bafde95f6fa51ccea70738c1b99db870bddcAnders Carlsson void StartFunction(GlobalDecl GD, QualType RetTy, 5127c086516f3cc9fba2733b1919973206c6ba4b171Daniel Dunbar llvm::Function *Fn, 5132284ac9ec80299fcdefae9a2787cf85105a0f203Daniel Dunbar const FunctionArgList &Args, 5142284ac9ec80299fcdefae9a2787cf85105a0f203Daniel Dunbar SourceLocation StartLoc); 515a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 5169fc6a7774643a810c8501dae2323e863fefb623eJohn McCall void EmitConstructorBody(FunctionArgList &Args); 5179fc6a7774643a810c8501dae2323e863fefb623eJohn McCall void EmitDestructorBody(FunctionArgList &Args); 5189fc6a7774643a810c8501dae2323e863fefb623eJohn McCall void EmitFunctionBody(FunctionArgList &Args); 519a355e07454463b19829ac92ffd115a097faff0e0John McCall 5200dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitReturnBlock - Emit the unified return block, trying to avoid its 5210dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// emission when possible. 5221c1d6074f5a0296dd273362655b1b8f9057289e3Daniel Dunbar void EmitReturnBlock(); 5231c1d6074f5a0296dd273362655b1b8f9057289e3Daniel Dunbar 5240dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// FinishFunction - Complete IR generation of the current function. It is 5250dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// legal to call this function even if there is no current insertion point. 526af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar void FinishFunction(SourceLocation EndLoc=SourceLocation()); 52717b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar 528519c32880b99396034ecaedc0cd86db2e8485003Anders Carlsson /// GenerateThunk - Generate a thunk for the given method. 529519c32880b99396034ecaedc0cd86db2e8485003Anders Carlsson void GenerateThunk(llvm::Function *Fn, GlobalDecl GD, const ThunkInfo &Thunk); 530519c32880b99396034ecaedc0cd86db2e8485003Anders Carlsson 531de1d26b9c1d8823b173e4d77015ad88b4da70559Anders Carlsson void EmitCtorPrologue(const CXXConstructorDecl *CD, CXXCtorType Type); 5321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 533d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson /// InitializeVTablePointer - Initialize the vtable pointer of the given 534d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson /// subobject. 535d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson /// 536d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson /// \param BaseIsMorallyVirtual - Whether the base subobject is a virtual base 537d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson /// or a direct or indirect base of a virtual base. 538d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson void InitializeVTablePointer(BaseSubobject Base, bool BaseIsMorallyVirtual, 539d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson llvm::Constant *VTable, 540d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson const CXXRecordDecl *VTableClass); 541d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson 542d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson typedef llvm::SmallPtrSet<const CXXRecordDecl *, 4> VisitedVirtualBasesSetTy; 543603d6d12cc4cba1ef219a3d55c698c7c87f87adfAnders Carlsson void InitializeVTablePointers(BaseSubobject Base, bool BaseIsMorallyVirtual, 544603d6d12cc4cba1ef219a3d55c698c7c87f87adfAnders Carlsson bool BaseIsNonVirtualPrimaryBase, 545603d6d12cc4cba1ef219a3d55c698c7c87f87adfAnders Carlsson llvm::Constant *VTable, 546603d6d12cc4cba1ef219a3d55c698c7c87f87adfAnders Carlsson const CXXRecordDecl *VTableClass, 547603d6d12cc4cba1ef219a3d55c698c7c87f87adfAnders Carlsson VisitedVirtualBasesSetTy& VBases); 54877a259c6dbf582949af8a243b472c0c7faa373a6Eli Friedman 549603d6d12cc4cba1ef219a3d55c698c7c87f87adfAnders Carlsson void InitializeVTablePointers(const CXXRecordDecl *ClassDecl); 550d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson 551d103f9f9b401b419e756f8c1849683cd77586067Anders Carlsson 5529fc6a7774643a810c8501dae2323e863fefb623eJohn McCall void SynthesizeCXXCopyConstructor(const FunctionArgList &Args); 5539fc6a7774643a810c8501dae2323e863fefb623eJohn McCall void SynthesizeCXXCopyAssignment(const FunctionArgList &Args); 5541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 555426cc3828ce07a2cff15c9837f5958e6fc4b7739Fariborz Jahanian /// EmitDtorEpilogue - Emit all code that comes at the end of class's 556f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// destructor. This is to call destructors on members and base classes in 557f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// reverse order of their construction. 558de1d26b9c1d8823b173e4d77015ad88b4da70559Anders Carlsson void EmitDtorEpilogue(const CXXDestructorDecl *Dtor, 559de1d26b9c1d8823b173e4d77015ad88b4da70559Anders Carlsson CXXDtorType Type); 5601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5610dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitFunctionProlog - Emit the target specific LLVM code to load the 5620dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// arguments for the given function. This is also responsible for naming the 5630dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// LLVM function arguments. 56488b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar void EmitFunctionProlog(const CGFunctionInfo &FI, 56588b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar llvm::Function *Fn, 56617b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar const FunctionArgList &Args); 56717b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar 5680dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitFunctionEpilog - Emit the target specific LLVM code to return the 5690dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// given temporary. 57088b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar void EmitFunctionEpilog(const CGFunctionInfo &FI, llvm::Value *ReturnValue); 57117b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar 572cce3d4f9812182ed4e551b7cf0fc86576be8d9c5Mike Stump /// EmitStartEHSpec - Emit the start of the exception spec. 573cce3d4f9812182ed4e551b7cf0fc86576be8d9c5Mike Stump void EmitStartEHSpec(const Decl *D); 574cce3d4f9812182ed4e551b7cf0fc86576be8d9c5Mike Stump 575cce3d4f9812182ed4e551b7cf0fc86576be8d9c5Mike Stump /// EmitEndEHSpec - Emit the end of the exception spec. 576cce3d4f9812182ed4e551b7cf0fc86576be8d9c5Mike Stump void EmitEndEHSpec(const Decl *D); 577cce3d4f9812182ed4e551b7cf0fc86576be8d9c5Mike Stump 578182f383db1782af752ecaf607fdff72a8542088bMike Stump /// getTerminateHandler - Return a handler that just calls terminate. 5799b39c51ae3c547568ac42325f94b4197618f6b18Mike Stump llvm::BasicBlock *getTerminateHandler(); 5809b39c51ae3c547568ac42325f94b4197618f6b18Mike Stump 5818b1a343b6b360d63d5dc8a6beb841ce4414c1e00Daniel Dunbar const llvm::Type *ConvertTypeForMem(QualType T); 5825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const llvm::Type *ConvertType(QualType T); 583bff225ecf77fb891596ecb1b27196310d268365eJohn McCall const llvm::Type *ConvertType(const TypeDecl *T) { 584bff225ecf77fb891596ecb1b27196310d268365eJohn McCall return ConvertType(getContext().getTypeDeclType(T)); 585bff225ecf77fb891596ecb1b27196310d268365eJohn McCall } 586c8aa5f1f264fb230c38182adab944232bb160c2bChris Lattner 5870dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// LoadObjCSelf - Load the value of self. This function is only valid while 5880dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// generating code for an Objective-C method. 589c8aa5f1f264fb230c38182adab944232bb160c2bChris Lattner llvm::Value *LoadObjCSelf(); 5900dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 5910dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// TypeOfSelfObject - Return type of object that this self represents. 59245012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian QualType TypeOfSelfObject(); 5934111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner 5945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// hasAggregateLLVMType - Return true if the specified AST type will map into 5955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// an aggregate LLVM type or is void. 5965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool hasAggregateLLVMType(QualType T); 59755e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar 59855e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar /// createBasicBlock - Create an LLVM basic block. 5990dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump llvm::BasicBlock *createBasicBlock(const char *Name="", 60055e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar llvm::Function *Parent=0, 60155e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar llvm::BasicBlock *InsertBefore=0) { 60229ea6729155c759836be4b5453bee9ef8e1e97eeDaniel Dunbar#ifdef NDEBUG 6030032b2781b4deb131f8c9b7968f2030bf2489cddOwen Anderson return llvm::BasicBlock::Create(VMContext, "", Parent, InsertBefore); 60429ea6729155c759836be4b5453bee9ef8e1e97eeDaniel Dunbar#else 6050032b2781b4deb131f8c9b7968f2030bf2489cddOwen Anderson return llvm::BasicBlock::Create(VMContext, Name, Parent, InsertBefore); 60629ea6729155c759836be4b5453bee9ef8e1e97eeDaniel Dunbar#endif 60755e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar } 6080dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 6095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getBasicBlockForLabel - Return the LLVM basicblock that the specified 6105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// label maps to. 6115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::BasicBlock *getBasicBlockForLabel(const LabelStmt *S); 6120dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 613f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// SimplifyForwardingBlocks - If the given basic block is only a branch to 614f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// another basic block, simplify it. This assumes that no other code could 615f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// potentially reference the basic block. 616aa5bd87f1fd5f9ca47924248817c89325759b30eDaniel Dunbar void SimplifyForwardingBlocks(llvm::BasicBlock *BB); 617aa5bd87f1fd5f9ca47924248817c89325759b30eDaniel Dunbar 6180dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitBlock - Emit the given block \arg BB and set it as the insert point, 6190dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// adding a fall-through branch from the current insert block if 6200dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// necessary. It is legal to call this function even if there is no current 6210dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// insertion point. 622a0c21a8faa79e88ac432d116eca58f7a7217195dDaniel Dunbar /// 6230dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// IsFinished - If true, indicates that the caller has finished emitting 6240dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// branches to the given block and does not expect to emit code into it. This 6250dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// means the block can be ignored if it is unreachable. 626a0c21a8faa79e88ac432d116eca58f7a7217195dDaniel Dunbar void EmitBlock(llvm::BasicBlock *BB, bool IsFinished=false); 627824e3bd76b2e32db2ec6e4d2d113413e518d1c63Daniel Dunbar 6280dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitBranch - Emit a branch to the specified basic block from the current 6290dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// insert block, taking care to avoid creation of branches from dummy 6300dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// blocks. It is legal to call this function even if there is no current 6310dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// insertion point. 6325e08ad3cc62ab94649959ae227a9a411a729bf49Daniel Dunbar /// 6330dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// This function clears the current insertion point. The caller should follow 6340dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// calls to this function with calls to Emit*Block prior to generation new 6350dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// code. 636d57a871339c7c98d58d93108b806f59bdf4e13e2Daniel Dunbar void EmitBranch(llvm::BasicBlock *Block); 637d57a871339c7c98d58d93108b806f59bdf4e13e2Daniel Dunbar 6380dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// HaveInsertPoint - True if an insertion point is defined. If not, this 6390dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// indicates that the current code being emitted is unreachable. 6400dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump bool HaveInsertPoint() const { 641a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar return Builder.GetInsertBlock() != 0; 642a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar } 643a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 6440dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EnsureInsertPoint - Ensure that an insertion point is defined so that 6450dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// emitted IR has a place to go. Note that by definition, if this function 6460dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// creates a block then that block is unreachable; callers may do better to 6470dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// detect when no insertion point is defined and simply skip IR generation. 648a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar void EnsureInsertPoint() { 649a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar if (!HaveInsertPoint()) 650a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar EmitBlock(createBasicBlock()); 651a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar } 6520dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 653488e993a135ce700b982bf099c3d6b856301d642Daniel Dunbar /// ErrorUnsupported - Print out an error that codegen doesn't support the 654dc5e8268292046114ffe02e48773572a91a310f1Chris Lattner /// specified stmt yet. 65590df4b6661968a84bf64baee489bb2f6d948fcc1Daniel Dunbar void ErrorUnsupported(const Stmt *S, const char *Type, 65690df4b6661968a84bf64baee489bb2f6d948fcc1Daniel Dunbar bool OmitOnError=false); 6575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 6595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Helpers 6605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 6610dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 6620953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Qualifiers MakeQualifiers(QualType T) { 663df317bf71653eeb235da8337b1e8e790f9653aa4Mike Stump Qualifiers Quals = getContext().getCanonicalType(T).getQualifiers(); 6640953e767ff7817f97b3ab20896b229891eeff45bJohn McCall Quals.setObjCGCAttr(getContext().getObjCGCAttrKind(T)); 6650953e767ff7817f97b3ab20896b229891eeff45bJohn McCall return Quals; 6660953e767ff7817f97b3ab20896b229891eeff45bJohn McCall } 6670953e767ff7817f97b3ab20896b229891eeff45bJohn McCall 6685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// CreateTempAlloca - This creates a alloca and inserts it into the entry 669195337d2e5d4625ae9dc1328c7cdbc7115b0261bDaniel Dunbar /// block. The caller is responsible for setting an appropriate alignment on 670195337d2e5d4625ae9dc1328c7cdbc7115b0261bDaniel Dunbar /// the alloca. 6715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::AllocaInst *CreateTempAlloca(const llvm::Type *Ty, 672259e9ccf882d11491ad149aec5e6d7a061c9f938Daniel Dunbar const llvm::Twine &Name = "tmp"); 6730dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 6749bd4da2cfa8b956b851200db8f9a37e175edbb15Daniel Dunbar /// CreateIRTemp - Create a temporary IR object of the given type, with 6759bd4da2cfa8b956b851200db8f9a37e175edbb15Daniel Dunbar /// appropriate alignment. This routine should only be used when an temporary 6769bd4da2cfa8b956b851200db8f9a37e175edbb15Daniel Dunbar /// value needs to be stored into an alloca (for example, to avoid explicit 6779bd4da2cfa8b956b851200db8f9a37e175edbb15Daniel Dunbar /// PHI construction), but the type is the IR type, not the type appropriate 6789bd4da2cfa8b956b851200db8f9a37e175edbb15Daniel Dunbar /// for storing in memory. 6799bd4da2cfa8b956b851200db8f9a37e175edbb15Daniel Dunbar llvm::Value *CreateIRTemp(QualType T, const llvm::Twine &Name = "tmp"); 6809bd4da2cfa8b956b851200db8f9a37e175edbb15Daniel Dunbar 681195337d2e5d4625ae9dc1328c7cdbc7115b0261bDaniel Dunbar /// CreateMemTemp - Create a temporary memory object of the given type, with 682195337d2e5d4625ae9dc1328c7cdbc7115b0261bDaniel Dunbar /// appropriate alignment. 683195337d2e5d4625ae9dc1328c7cdbc7115b0261bDaniel Dunbar llvm::Value *CreateMemTemp(QualType T, const llvm::Twine &Name = "tmp"); 684195337d2e5d4625ae9dc1328c7cdbc7115b0261bDaniel Dunbar 6855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EvaluateExprAsBool - Perform the usual unary conversions on the specified 6865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// expression and compare the result against zero, returning an Int1Ty value. 6875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::Value *EvaluateExprAsBool(const Expr *E); 6885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6899b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// EmitAnyExpr - Emit code to compute the specified expression which can have 6909b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// any type. The result is returned as an RValue struct. If this is an 6919b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// aggregate expression, the aggloc/agglocvolatile arguments indicate where 6929b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// the result should be returned. 69349d1cd5a09ed3df353371fd7f206674a85e0fb45Mike Stump /// 69449d1cd5a09ed3df353371fd7f206674a85e0fb45Mike Stump /// \param IgnoreResult - True if the resulting value isn't used. 6950dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump RValue EmitAnyExpr(const Expr *E, llvm::Value *AggLoc = 0, 69614c5cbf59cffee52275230922283a247de407712Anders Carlsson bool IsAggLocVolatile = false, bool IgnoreResult = false, 69714c5cbf59cffee52275230922283a247de407712Anders Carlsson bool IsInitializer = false); 698d9363c3a80168283b3da518b4e17f545a6246857Devang Patel 6990dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // EmitVAListRef - Emit a "reference" to a va_list; this is either the address 7000dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // or the value of the expression, depending on how va_list is defined. 7014fd0aa5803357d8c72eeac2cae15e12649ea08feEli Friedman llvm::Value *EmitVAListRef(const Expr *E); 7024fd0aa5803357d8c72eeac2cae15e12649ea08feEli Friedman 7030dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitAnyExprToTemp - Similary to EmitAnyExpr(), however, the result will 7040dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// always be accessible even if no aggregate location is provided. 70514c5cbf59cffee52275230922283a247de407712Anders Carlsson RValue EmitAnyExprToTemp(const Expr *E, bool IsAggLocVolatile = false, 70614c5cbf59cffee52275230922283a247de407712Anders Carlsson bool IsInitializer = false); 70746f45b9bec4a265ad8400a538e5ec3a5683617f1Daniel Dunbar 70827fe2e6c97a3782a0639d87b460741e8ba5d076dMike Stump /// EmitAggregateCopy - Emit an aggrate copy. 70927fe2e6c97a3782a0639d87b460741e8ba5d076dMike Stump /// 71027fe2e6c97a3782a0639d87b460741e8ba5d076dMike Stump /// \param isVolatile - True iff either the source or the destination is 71127fe2e6c97a3782a0639d87b460741e8ba5d076dMike Stump /// volatile. 7127482d12c345c6391f8956850545e2d4aa7701ce6Daniel Dunbar void EmitAggregateCopy(llvm::Value *DestPtr, llvm::Value *SrcPtr, 71327fe2e6c97a3782a0639d87b460741e8ba5d076dMike Stump QualType EltTy, bool isVolatile=false); 7147482d12c345c6391f8956850545e2d4aa7701ce6Daniel Dunbar 7157482d12c345c6391f8956850545e2d4aa7701ce6Daniel Dunbar void EmitAggregateClear(llvm::Value *DestPtr, QualType Ty); 7167482d12c345c6391f8956850545e2d4aa7701ce6Daniel Dunbar 71751b09f2c528c8460b5465c676173324e44176d62Devang Patel /// StartBlock - Start new block named N. If insert block is a dummy block 71851b09f2c528c8460b5465c676173324e44176d62Devang Patel /// then reuse it. 71951b09f2c528c8460b5465c676173324e44176d62Devang Patel void StartBlock(const char *N); 72051b09f2c528c8460b5465c676173324e44176d62Devang Patel 721813733577d33ec56479667b49e1bff42dc6bba90Lauro Ramos Venancio /// GetAddrOfStaticLocalVar - Return the address of a static local variable. 722248a753f6b670692523c99afaeb8fe98f7ae3ca7Steve Naroff llvm::Constant *GetAddrOfStaticLocalVar(const VarDecl *BVD); 7234f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman 724dde0a94120915fa925d1ffcdb997c7b44dc9fa21Anders Carlsson /// GetAddrOfLocalVar - Return the address of a local variable. 725dde0a94120915fa925d1ffcdb997c7b44dc9fa21Anders Carlsson llvm::Value *GetAddrOfLocalVar(const VarDecl *VD); 7260dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 7274f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman /// getAccessedFieldNo - Given an encoded value and a result number, return 7284f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman /// the input field number being accessed. 7294f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman static unsigned getAccessedFieldNo(unsigned Idx, const llvm::Constant *Elts); 7304f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman 731d9becd1846e2c72bf6ad283faa1b048f33dd3afeChris Lattner llvm::BlockAddress *GetAddrOfLabel(const LabelStmt *L); 7323d00fdc82fd550ae4bfbb2e700a1fc85bbd6d6fdChris Lattner llvm::BasicBlock *GetIndirectGotoBlock(); 7330ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar 7340dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitMemSetToZero - Generate code to memset a value of the given type to 0. 7353d8400d9a61aa4b63ff35e5cede405b32a41425eAnders Carlsson void EmitMemSetToZero(llvm::Value *DestPtr, QualType Ty); 736ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson 737ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson // EmitVAArg - Generate code to get an argument from the passed in pointer 738ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson // and update it accordingly. The return value is a pointer to the argument. 739ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson // FIXME: We should be able to get rid of this method and use the va_arg 7400dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // instruction in LLVM instead once it works well enough. 741ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson llvm::Value *EmitVAArg(llvm::Value *VAListAddr, QualType Ty); 742f666b7780d04186521adcaedb0e15dfa4d5e6933Anders Carlsson 743f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// EmitVLASize - Generate code for any VLA size expressions that might occur 744f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// in a variably modified type. If Ty is a VLA, will return the value that 745f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// corresponds to the size in bytes of the VLA type. Will return 0 otherwise. 746d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// 747d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// This function can be called with a null (unreachable) insert point. 74860d35413662ebdcd1d31e34a8a7c665eb6977f1eAnders Carlsson llvm::Value *EmitVLASize(QualType Ty); 7490dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 750dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson // GetVLASize - Returns an LLVM value that corresponds to the size in bytes 751dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson // of a variable length array type. 752dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson llvm::Value *GetVLASize(const VariableArrayType *); 753dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson 7545f4307b7ba164b03c853c8d3eb4674d33f8967a6Anders Carlsson /// LoadCXXThis - Load the value of 'this'. This function is only valid while 7555f4307b7ba164b03c853c8d3eb4674d33f8967a6Anders Carlsson /// generating code for an C++ member function. 7562504941793b549323f9d29c62507cf21d865fadeJohn McCall llvm::Value *LoadCXXThis() { 7572504941793b549323f9d29c62507cf21d865fadeJohn McCall assert(CXXThisValue && "no 'this' value for this function"); 7582504941793b549323f9d29c62507cf21d865fadeJohn McCall return CXXThisValue; 7592504941793b549323f9d29c62507cf21d865fadeJohn McCall } 7601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 761c997d4278d329e18891aac9698fb991b2d4622ebAnders Carlsson /// LoadCXXVTT - Load the VTT parameter to base constructors/destructors have 762c997d4278d329e18891aac9698fb991b2d4622ebAnders Carlsson /// virtual bases. 7632504941793b549323f9d29c62507cf21d865fadeJohn McCall llvm::Value *LoadCXXVTT() { 7642504941793b549323f9d29c62507cf21d865fadeJohn McCall assert(CXXVTTValue && "no VTT value for this function"); 7652504941793b549323f9d29c62507cf21d865fadeJohn McCall return CXXVTTValue; 7662504941793b549323f9d29c62507cf21d865fadeJohn McCall } 767bff225ecf77fb891596ecb1b27196310d268365eJohn McCall 768bff225ecf77fb891596ecb1b27196310d268365eJohn McCall /// GetAddressOfBaseOfCompleteClass - Convert the given pointer to a 769bff225ecf77fb891596ecb1b27196310d268365eJohn McCall /// complete class down to one of its virtual bases. 770bff225ecf77fb891596ecb1b27196310d268365eJohn McCall llvm::Value *GetAddressOfBaseOfCompleteClass(llvm::Value *Value, 771bff225ecf77fb891596ecb1b27196310d268365eJohn McCall bool IsVirtual, 772bff225ecf77fb891596ecb1b27196310d268365eJohn McCall const CXXRecordDecl *Derived, 773bff225ecf77fb891596ecb1b27196310d268365eJohn McCall const CXXRecordDecl *Base); 774c997d4278d329e18891aac9698fb991b2d4622ebAnders Carlsson 775f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// GetAddressOfBaseClass - This function will add the necessary delta to the 776f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// load of 'this' and returns address of the base class. 777a3697c9c155bda93fd2802f37084b620f4738822Anders Carlsson llvm::Value *GetAddressOfBaseClass(llvm::Value *Value, 778a3697c9c155bda93fd2802f37084b620f4738822Anders Carlsson const CXXRecordDecl *ClassDecl, 779a3697c9c155bda93fd2802f37084b620f4738822Anders Carlsson const CXXRecordDecl *BaseClassDecl, 780a3697c9c155bda93fd2802f37084b620f4738822Anders Carlsson bool NullCheckValue); 781a3697c9c155bda93fd2802f37084b620f4738822Anders Carlsson 782a3697c9c155bda93fd2802f37084b620f4738822Anders Carlsson llvm::Value *GetAddressOfDerivedClass(llvm::Value *Value, 7835a0f49ebc83e7fe0da07b9964c44b0a7fae270cbAnders Carlsson const CXXRecordDecl *ClassDecl, 784a3697c9c155bda93fd2802f37084b620f4738822Anders Carlsson const CXXRecordDecl *DerivedClassDecl, 7855a0f49ebc83e7fe0da07b9964c44b0a7fae270cbAnders Carlsson bool NullCheckValue); 786a3697c9c155bda93fd2802f37084b620f4738822Anders Carlsson 787bb7e17b52ffaa4097b4c4d7935746d23539ffe2aAnders Carlsson llvm::Value *GetVirtualBaseClassOffset(llvm::Value *This, 788bb7e17b52ffaa4097b4c4d7935746d23539ffe2aAnders Carlsson const CXXRecordDecl *ClassDecl, 789bb7e17b52ffaa4097b4c4d7935746d23539ffe2aAnders Carlsson const CXXRecordDecl *BaseClassDecl); 7902f1986b557fa671c4f8c9dd0d071398edfc073d5Anders Carlsson 7911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void EmitClassAggrMemberwiseCopy(llvm::Value *DestValue, 792eb0b6d556ff2b4a5053e89fd084eb34e44cea14cFariborz Jahanian llvm::Value *SrcValue, 793c28bbc2d2271aab6c5d79ef2758604221cd92a4bFariborz Jahanian const ArrayType *Array, 794c28bbc2d2271aab6c5d79ef2758604221cd92a4bFariborz Jahanian const CXXRecordDecl *BaseClassDecl, 795c28bbc2d2271aab6c5d79ef2758604221cd92a4bFariborz Jahanian QualType Ty); 796c28bbc2d2271aab6c5d79ef2758604221cd92a4bFariborz Jahanian 7971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void EmitClassAggrCopyAssignment(llvm::Value *DestValue, 798c28bbc2d2271aab6c5d79ef2758604221cd92a4bFariborz Jahanian llvm::Value *SrcValue, 799eb0b6d556ff2b4a5053e89fd084eb34e44cea14cFariborz Jahanian const ArrayType *Array, 800eb0b6d556ff2b4a5053e89fd084eb34e44cea14cFariborz Jahanian const CXXRecordDecl *BaseClassDecl, 801eb0b6d556ff2b4a5053e89fd084eb34e44cea14cFariborz Jahanian QualType Ty); 802eb0b6d556ff2b4a5053e89fd084eb34e44cea14cFariborz Jahanian 803ca28361fb0a72c50e0a400fae2fad9520e61c0a5Fariborz Jahanian void EmitClassMemberwiseCopy(llvm::Value *DestValue, llvm::Value *SrcValue, 8041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const CXXRecordDecl *ClassDecl, 805942f4f33d02dba823594bd2d7b3d317cb01c74f8Fariborz Jahanian const CXXRecordDecl *BaseClassDecl, 806942f4f33d02dba823594bd2d7b3d317cb01c74f8Fariborz Jahanian QualType Ty); 8071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8080270b8aa3f9b50ec3acd1abfd2b97377a3e1bb05Fariborz Jahanian void EmitClassCopyAssignment(llvm::Value *DestValue, llvm::Value *SrcValue, 8091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const CXXRecordDecl *ClassDecl, 8100270b8aa3f9b50ec3acd1abfd2b97377a3e1bb05Fariborz Jahanian const CXXRecordDecl *BaseClassDecl, 8110270b8aa3f9b50ec3acd1abfd2b97377a3e1bb05Fariborz Jahanian QualType Ty); 8121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 813c0bf462cf35fe050bddbd8bff967298e4a67e79dJohn McCall void EmitDelegateCXXConstructorCall(const CXXConstructorDecl *Ctor, 814c0bf462cf35fe050bddbd8bff967298e4a67e79dJohn McCall CXXCtorType CtorType, 815c0bf462cf35fe050bddbd8bff967298e4a67e79dJohn McCall const FunctionArgList &Args); 8161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void EmitCXXConstructorCall(const CXXConstructorDecl *D, CXXCtorType Type, 817b14095aa98c6fedd3625920c4ce834bcaf24d9f7Anders Carlsson llvm::Value *This, 818b14095aa98c6fedd3625920c4ce834bcaf24d9f7Anders Carlsson CallExpr::const_arg_iterator ArgBeg, 819b14095aa98c6fedd3625920c4ce834bcaf24d9f7Anders Carlsson CallExpr::const_arg_iterator ArgEnd); 8201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 821288dcaf329c49b01dacd5c1dd9f35609555feecdFariborz Jahanian void EmitCXXAggrConstructorCall(const CXXConstructorDecl *D, 822569c1f4a6c703eaa8b963bed7d5c2fd5d4569e93Anders Carlsson const ConstantArrayType *ArrayTy, 8235d4d946ec2d88696fd8422aeb64dc29688e6a2c1Anders Carlsson llvm::Value *ArrayPtr, 8245d4d946ec2d88696fd8422aeb64dc29688e6a2c1Anders Carlsson CallExpr::const_arg_iterator ArgBeg, 8255d4d946ec2d88696fd8422aeb64dc29688e6a2c1Anders Carlsson CallExpr::const_arg_iterator ArgEnd); 8265d4d946ec2d88696fd8422aeb64dc29688e6a2c1Anders Carlsson 827569c1f4a6c703eaa8b963bed7d5c2fd5d4569e93Anders Carlsson void EmitCXXAggrConstructorCall(const CXXConstructorDecl *D, 828569c1f4a6c703eaa8b963bed7d5c2fd5d4569e93Anders Carlsson llvm::Value *NumElements, 8295d4d946ec2d88696fd8422aeb64dc29688e6a2c1Anders Carlsson llvm::Value *ArrayPtr, 8305d4d946ec2d88696fd8422aeb64dc29688e6a2c1Anders Carlsson CallExpr::const_arg_iterator ArgBeg, 8315d4d946ec2d88696fd8422aeb64dc29688e6a2c1Anders Carlsson CallExpr::const_arg_iterator ArgEnd); 832b14095aa98c6fedd3625920c4ce834bcaf24d9f7Anders Carlsson 833f800f6c09ed4a71bcb593d6962e0fda2c2845a70Fariborz Jahanian void EmitCXXAggrDestructorCall(const CXXDestructorDecl *D, 834f800f6c09ed4a71bcb593d6962e0fda2c2845a70Fariborz Jahanian const ArrayType *Array, 835f800f6c09ed4a71bcb593d6962e0fda2c2845a70Fariborz Jahanian llvm::Value *This); 8361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 83772c2153b466263a21870b2b1c817900d4981493eFariborz Jahanian void EmitCXXAggrDestructorCall(const CXXDestructorDecl *D, 83872c2153b466263a21870b2b1c817900d4981493eFariborz Jahanian llvm::Value *NumElements, 83972c2153b466263a21870b2b1c817900d4981493eFariborz Jahanian llvm::Value *This); 84072c2153b466263a21870b2b1c817900d4981493eFariborz Jahanian 841dd36d328730d8c02915d0884541b45ec6ca0049dChris Lattner llvm::Constant *GenerateCXXAggrDestructorHelper(const CXXDestructorDecl *D, 84288f4280f6b60edcbdea6a38a3da8b17d66473ad6Fariborz Jahanian const ArrayType *Array, 84388f4280f6b60edcbdea6a38a3da8b17d66473ad6Fariborz Jahanian llvm::Value *This); 84488f4280f6b60edcbdea6a38a3da8b17d66473ad6Fariborz Jahanian 8457267c1693abe7875b0c57268be05005ae013c6c9Anders Carlsson void EmitCXXDestructorCall(const CXXDestructorDecl *D, CXXDtorType Type, 8467267c1693abe7875b0c57268be05005ae013c6c9Anders Carlsson llvm::Value *This); 8471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 848543ac0c4d24a81fb2b7b6e83370aa8e4cbc93054Anders Carlsson void PushCXXTemporary(const CXXTemporary *Temporary, llvm::Value *Ptr); 849f4b8fea84a6b1ef74cf8fe572918439e34935e51Anders Carlsson void PopCXXTemporary(); 8501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 851a00703dccbdc6cc4a293db38477dea7db5538c7eAnders Carlsson llvm::Value *EmitCXXNewExpr(const CXXNewExpr *E); 85260e282cc1e508be327b0481cecedc206873cb86aAnders Carlsson void EmitCXXDeleteExpr(const CXXDeleteExpr *E); 8531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8544bf8152799ec41796f989ea1b94f6f1bac349117Eli Friedman void EmitDeleteCall(const FunctionDecl *DeleteFD, llvm::Value *Ptr, 8554bf8152799ec41796f989ea1b94f6f1bac349117Eli Friedman QualType DeleteTy); 8564bf8152799ec41796f989ea1b94f6f1bac349117Eli Friedman 857c2e84ae9a6d25cea3e583c768e576b4c981ec028Mike Stump llvm::Value* EmitCXXTypeidExpr(const CXXTypeidExpr *E); 858c849c052d6b4b70f2651c1969531861a5f230053Mike Stump llvm::Value *EmitDynamicCast(llvm::Value *V, const CXXDynamicCastExpr *DCE); 859c2e84ae9a6d25cea3e583c768e576b4c981ec028Mike Stump 860b14e62d5aee7522b98c410ee65bd750c2cfe6f01Mike Stump void EmitCheck(llvm::Value *, unsigned Size); 861b14e62d5aee7522b98c410ee65bd750c2cfe6f01Mike Stump 862dd36d328730d8c02915d0884541b45ec6ca0049dChris Lattner llvm::Value *EmitScalarPrePostIncDec(const UnaryOperator *E, LValue LV, 863dd36d328730d8c02915d0884541b45ec6ca0049dChris Lattner bool isInc, bool isPre); 864dd36d328730d8c02915d0884541b45ec6ca0049dChris Lattner ComplexPairTy EmitComplexPrePostIncDec(const UnaryOperator *E, LValue LV, 865dd36d328730d8c02915d0884541b45ec6ca0049dChris Lattner bool isInc, bool isPre); 8665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 8675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Declaration Emission 8685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 8690dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 870d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// EmitDecl - Emit a declaration. 871d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// 872d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// This function can be called with a null (unreachable) insert point. 8735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitDecl(const Decl &D); 874d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar 8751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// EmitBlockVarDecl - Emit a block variable declaration. 876d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// 877d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// This function can be called with a null (unreachable) insert point. 878248a753f6b670692523c99afaeb8fe98f7ae3ca7Steve Naroff void EmitBlockVarDecl(const VarDecl &D); 879d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar 880d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// EmitLocalBlockVarDecl - Emit a local block variable declaration. 881d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// 882d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar /// This function can be called with a null (unreachable) insert point. 883248a753f6b670692523c99afaeb8fe98f7ae3ca7Steve Naroff void EmitLocalBlockVarDecl(const VarDecl &D); 884d286f05f1234bac289173f0eed88d7ecbaea0099Daniel Dunbar 885f6b89a173827457c28ac77b7cf091a24ef484e8aAnders Carlsson void EmitStaticBlockVarDecl(const VarDecl &D, 886f6b89a173827457c28ac77b7cf091a24ef484e8aAnders Carlsson llvm::GlobalValue::LinkageTypes Linkage); 887b7ec246872b412f0e7bb9e93eacfd78cfa6adfb3Daniel Dunbar 888b7ec246872b412f0e7bb9e93eacfd78cfa6adfb3Daniel Dunbar /// EmitParmDecl - Emit a ParmVarDecl or an ImplicitParamDecl. 889b7ec246872b412f0e7bb9e93eacfd78cfa6adfb3Daniel Dunbar void EmitParmDecl(const VarDecl &D, llvm::Value *Arg); 8900dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 8915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 8925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Statement Emission 8935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 8945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8950dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitStopPoint - Emit a debug stoppoint if we are emitting debug info. 8960912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar void EmitStopPoint(const Stmt *S); 8970912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar 8980dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitStmt - Emit the code for the statement \arg S. It is legal to call 8990dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// this function even if there is no current insertion point. 9000dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// 9010dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// This function may clear the current insertion point; callers should use 9020dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EnsureInsertPoint if they wish to subsequently generate code without first 9030dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// calling EmitBlock, EmitBranch, or EmitStmt. 9045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitStmt(const Stmt *S); 905a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 9060912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar /// EmitSimpleStmt - Try to emit a "simple" statement which does not 9070dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// necessarily require an insertion point or debug information; typically 9080dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// because the statement amounts to a jump or a container of other 9090dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// statements. 9100912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar /// 9110912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar /// \return True if the statement was handled. 9120912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar bool EmitSimpleStmt(const Stmt *S); 9130912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar 9149b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner RValue EmitCompoundStmt(const CompoundStmt &S, bool GetLast = false, 9159b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner llvm::Value *AggLoc = 0, bool isAggVol = false); 916a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 9170dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitLabel - Emit the block for the given label. It is legal to call this 9180dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// function even if there is no current insertion point. 91991d723da7b68be5245c3ac58aa2a36d04658cfb8Chris Lattner void EmitLabel(const LabelStmt &S); // helper for EmitLabelStmt. 920a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 9215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitLabelStmt(const LabelStmt &S); 9225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitGotoStmt(const GotoStmt &S); 9230ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar void EmitIndirectGotoStmt(const IndirectGotoStmt &S); 9245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitIfStmt(const IfStmt &S); 9255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitWhileStmt(const WhileStmt &S); 9265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitDoStmt(const DoStmt &S); 9275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitForStmt(const ForStmt &S); 9285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitReturnStmt(const ReturnStmt &S); 9295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitDeclStmt(const DeclStmt &S); 9300912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar void EmitBreakStmt(const BreakStmt &S); 9310912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar void EmitContinueStmt(const ContinueStmt &S); 93251b09f2c528c8460b5465c676173324e44176d62Devang Patel void EmitSwitchStmt(const SwitchStmt &S); 93351b09f2c528c8460b5465c676173324e44176d62Devang Patel void EmitDefaultStmt(const DefaultStmt &S); 93451b09f2c528c8460b5465c676173324e44176d62Devang Patel void EmitCaseStmt(const CaseStmt &S); 935c049e4f406a7f7179eba98659044a32508e53289Devang Patel void EmitCaseStmtRange(const CaseStmt &S); 936fb1aeb804c08d5288a923fb278161783e6abdc66Anders Carlsson void EmitAsmStmt(const AsmStmt &S); 9370dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 9383d8400d9a61aa4b63ff35e5cede405b32a41425eAnders Carlsson void EmitObjCForCollectionStmt(const ObjCForCollectionStmt &S); 93964d5d6c5903157c521af496479d06dc26032d718Anders Carlsson void EmitObjCAtTryStmt(const ObjCAtTryStmt &S); 94064d5d6c5903157c521af496479d06dc26032d718Anders Carlsson void EmitObjCAtThrowStmt(const ObjCAtThrowStmt &S); 94110cac6f7115b59a466bb8d2d51cdddeb38aadc37Chris Lattner void EmitObjCAtSynchronizedStmt(const ObjCAtSynchronizedStmt &S); 9420dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 9439fc6a7774643a810c8501dae2323e863fefb623eJohn McCall struct CXXTryStmtInfo { 9449fc6a7774643a810c8501dae2323e863fefb623eJohn McCall llvm::BasicBlock *SavedLandingPad; 9459fc6a7774643a810c8501dae2323e863fefb623eJohn McCall llvm::BasicBlock *HandlerBlock; 9469fc6a7774643a810c8501dae2323e863fefb623eJohn McCall llvm::BasicBlock *FinallyBlock; 9479fc6a7774643a810c8501dae2323e863fefb623eJohn McCall }; 9489fc6a7774643a810c8501dae2323e863fefb623eJohn McCall CXXTryStmtInfo EnterCXXTryStmt(const CXXTryStmt &S); 9499fc6a7774643a810c8501dae2323e863fefb623eJohn McCall void ExitCXXTryStmt(const CXXTryStmt &S, CXXTryStmtInfo Info); 9509fc6a7774643a810c8501dae2323e863fefb623eJohn McCall 9516815e941998659a55c20c147861b0f437928c3d8Anders Carlsson void EmitCXXTryStmt(const CXXTryStmt &S); 9526815e941998659a55c20c147861b0f437928c3d8Anders Carlsson 9535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 9545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // LValue Expression Emission 9555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 9565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 95713e81737a433b23f8c662d10d1d57356122a8caaDaniel Dunbar /// GetUndefRValue - Get an appropriate 'undef' rvalue for the given type. 95813e81737a433b23f8c662d10d1d57356122a8caaDaniel Dunbar RValue GetUndefRValue(QualType Ty); 95913e81737a433b23f8c662d10d1d57356122a8caaDaniel Dunbar 960ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar /// EmitUnsupportedRValue - Emit a dummy r-value using the type of E 961ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar /// and issue an ErrorUnsupported style diagnostic (using the 962ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar /// provided Name). 963ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar RValue EmitUnsupportedRValue(const Expr *E, 964ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar const char *Name); 965ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar 9660dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitUnsupportedLValue - Emit a dummy l-value using the type of E and issue 9670dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// an ErrorUnsupported style diagnostic (using the provided Name). 9686ba82a4a4b295e54cf192c3e98b28f39990c6194Daniel Dunbar LValue EmitUnsupportedLValue(const Expr *E, 9696ba82a4a4b295e54cf192c3e98b28f39990c6194Daniel Dunbar const char *Name); 9706ba82a4a4b295e54cf192c3e98b28f39990c6194Daniel Dunbar 9715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EmitLValue - Emit code to compute a designator that specifies the location 9725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// of the expression. 9735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 9745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// This can return one of two things: a simple address or a bitfield 9755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// reference. In either case, the LLVM Value* in the LValue structure is 9765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// guaranteed to be an LLVM pointer type. 9775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 9785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// If this returns a bitfield reference, nothing about the pointee type of 9795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// the LLVM value is known: For example, it may not be a pointer to an 9805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// integer. 9815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 9825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// If this returns a normal address, and if the lvalue's C type is fixed 9835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// size, this method guarantees that the returned pointer type will point to 9845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// an LLVM type of the same size of the lvalue's type. If the lvalue has a 9855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// variable length type, this is not possible. 9865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 9875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitLValue(const Expr *E); 9880dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 989b14e62d5aee7522b98c410ee65bd750c2cfe6f01Mike Stump /// EmitCheckedLValue - Same as EmitLValue but additionally we generate 990b14e62d5aee7522b98c410ee65bd750c2cfe6f01Mike Stump /// checking code to guard against undefined behavior. This is only 991b14e62d5aee7522b98c410ee65bd750c2cfe6f01Mike Stump /// suitable when we know that the address will be used to access the 992b14e62d5aee7522b98c410ee65bd750c2cfe6f01Mike Stump /// object. 993b14e62d5aee7522b98c410ee65bd750c2cfe6f01Mike Stump LValue EmitCheckedLValue(const Expr *E); 994b14e62d5aee7522b98c410ee65bd750c2cfe6f01Mike Stump 9959d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// EmitLoadOfScalar - Load a scalar value from an address, taking 9969d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// care to appropriately convert from the memory representation to 9979d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// the LLVM value representation. 99809429b962811f2c0a7a81a1b0a89f96f5878b20cMike Stump llvm::Value *EmitLoadOfScalar(llvm::Value *Addr, bool Volatile, 9999d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar QualType Ty); 10009d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar 10019d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// EmitStoreOfScalar - Store a scalar value to an address, taking 10029d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// care to appropriately convert from the memory representation to 10039d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// the LLVM value representation. 100409429b962811f2c0a7a81a1b0a89f96f5878b20cMike Stump void EmitStoreOfScalar(llvm::Value *Value, llvm::Value *Addr, 1005b4aa4664ec851573624a7a29c6c750fc1d5cc268Anders Carlsson bool Volatile, QualType Ty); 10069d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar 10075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EmitLoadOfLValue - Given an expression that represents a value lvalue, 10085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// this method emits the address of the lvalue, then loads the result as an 10095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// rvalue, returning the rvalue. 10105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer RValue EmitLoadOfLValue(LValue V, QualType LVType); 1011213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman RValue EmitLoadOfExtVectorElementLValue(LValue V, QualType LVType); 10123b8c22d93da1432b2d4cea779d14912645c93866Lauro Ramos Venancio RValue EmitLoadOfBitfieldLValue(LValue LV, QualType ExprType); 101385c59edda02df48fae8dc85049743319bc6e7e89Daniel Dunbar RValue EmitLoadOfPropertyRefLValue(LValue LV, QualType ExprType); 101443f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian RValue EmitLoadOfKVCRefLValue(LValue LV, QualType ExprType); 10155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10160dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 10175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EmitStoreThroughLValue - Store the specified rvalue into the specified 10185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// lvalue, where both are guaranteed to the have the same type, and that type 10195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// is 'Ty'. 10205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitStoreThroughLValue(RValue Src, LValue Dst, QualType Ty); 1021213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman void EmitStoreThroughExtVectorComponentLValue(RValue Src, LValue Dst, 1022213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman QualType Ty); 102385c59edda02df48fae8dc85049743319bc6e7e89Daniel Dunbar void EmitStoreThroughPropertyRefLValue(RValue Src, LValue Dst, QualType Ty); 102443f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian void EmitStoreThroughKVCRefLValue(RValue Src, LValue Dst, QualType Ty); 1025ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar 10260dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitStoreThroughLValue - Store Src into Dst with same constraints as 10270dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitStoreThroughLValue. 1028ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar /// 10290dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// \param Result [out] - If non-null, this will be set to a Value* for the 10300dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// bit-field contents after the store, appropriate for use as the result of 10310dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// an assignment to the bit-field. 1032ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar void EmitStoreThroughBitfieldLValue(RValue Src, LValue Dst, QualType Ty, 1033ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar llvm::Value **Result=0); 10340dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 103522c940ee588a420cd2e6c8f68be2ac3cc80061ffChristopher Lamb // Note: only availabe for agg return types 103680e62c29fe21cd06c93eba6e72b7e32dca06fcf9Daniel Dunbar LValue EmitBinaryOperatorLValue(const BinaryOperator *E); 10375b5c9ef865607e179413462dcd71bcebb5b7daaeDaniel Dunbar // Note: only available for agg return types 103822c940ee588a420cd2e6c8f68be2ac3cc80061ffChristopher Lamb LValue EmitCallExprLValue(const CallExpr *E); 10395b5c9ef865607e179413462dcd71bcebb5b7daaeDaniel Dunbar // Note: only available for agg return types 10405b5c9ef865607e179413462dcd71bcebb5b7daaeDaniel Dunbar LValue EmitVAArgExprLValue(const VAArgExpr *E); 10415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitDeclRefLValue(const DeclRefExpr *E); 10425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitStringLiteralLValue(const StringLiteral *E); 1043eaf2bb89eb2aad3b80673de30febe52df43c10ecChris Lattner LValue EmitObjCEncodeExprLValue(const ObjCEncodeExpr *E); 1044662b71ee82339c67f2c3689196e716c6560cf925Daniel Dunbar LValue EmitPredefinedFunctionName(unsigned Type); 1045d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner LValue EmitPredefinedLValue(const PredefinedExpr *E); 10465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitUnaryOpLValue(const UnaryOperator *E); 10475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitArraySubscriptExpr(const ArraySubscriptExpr *E); 1048213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman LValue EmitExtVectorElementExpr(const ExtVectorElementExpr *E); 1049b84a06e68ffd71da22e3c75b6e4bbdba37816413Devang Patel LValue EmitMemberExpr(const MemberExpr *E); 1050820bca41c3899374775d2a1dfc2ef2e22aaf1c7bFariborz Jahanian LValue EmitObjCIsaExpr(const ObjCIsaExpr *E); 105106e863f2902b8ba55b056308875c19f7ba3dab25Eli Friedman LValue EmitCompoundLiteralLValue(const CompoundLiteralExpr *E); 10526fcec8b58d0571866fcb162db947b029cc539ec4Anders Carlsson LValue EmitConditionalOperatorLValue(const ConditionalOperator *E); 105375dfedaf702822c9e51a4f3c5d3ecf2d2ad99272Chris Lattner LValue EmitCastLValue(const CastExpr *E); 105448620bafe4ba879f96c2d17caefeb79f3fae2eeaFariborz Jahanian LValue EmitNullInitializationLValue(const CXXZeroInitValueExpr *E); 1055909fbf70223ea04a5ec8d449789f3683a89701ffAnders Carlsson 10562a03192a02dbf4fdff438d1e658356bde871aba4Daniel Dunbar llvm::Value *EmitIvarOffset(const ObjCInterfaceDecl *Interface, 105729e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar const ObjCIvarDecl *Ivar); 10580ed303c918915cbe2c611cddbfabd00404664831Anders Carlsson LValue EmitLValueForField(llvm::Value* Base, const FieldDecl* Field, 1059e6d2a534851a649485cb087e9dfcaf8a65886858Anders Carlsson unsigned CVRQualifiers); 106006a2970e9480c6d02b367b2f970baff29b9f9721Anders Carlsson 106106a2970e9480c6d02b367b2f970baff29b9f9721Anders Carlsson /// EmitLValueForFieldInitialization - Like EmitLValueForField, except that 106206a2970e9480c6d02b367b2f970baff29b9f9721Anders Carlsson /// if the Field is a reference, this will return the address of the reference 106306a2970e9480c6d02b367b2f970baff29b9f9721Anders Carlsson /// and not the address of the value stored in the reference. 106406a2970e9480c6d02b367b2f970baff29b9f9721Anders Carlsson LValue EmitLValueForFieldInitialization(llvm::Value* Base, 106506a2970e9480c6d02b367b2f970baff29b9f9721Anders Carlsson const FieldDecl* Field, 106606a2970e9480c6d02b367b2f970baff29b9f9721Anders Carlsson unsigned CVRQualifiers); 106706a2970e9480c6d02b367b2f970baff29b9f9721Anders Carlsson 106845012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian LValue EmitLValueForIvar(QualType ObjectTy, 106945012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian llvm::Value* Base, const ObjCIvarDecl *Ivar, 107029e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar unsigned CVRQualifiers); 107129e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar 10720ed303c918915cbe2c611cddbfabd00404664831Anders Carlsson LValue EmitLValueForBitfield(llvm::Value* Base, const FieldDecl* Field, 1073598d3f61b6ca854e9d3c2f3359e24468502a61aaFariborz Jahanian unsigned CVRQualifiers); 1074fd64bb635dc221baa19f81d5d2a084f7eb269f7fFariborz Jahanian 1075a99038c0757a836c6faeeddaa5dfd249b32f6e9eMike Stump LValue EmitBlockDeclRefLValue(const BlockDeclRefExpr *E); 1076a99038c0757a836c6faeeddaa5dfd249b32f6e9eMike Stump 1077b58d017f2b9eeed33f2ab3ede968b89cf5296bf2Anders Carlsson LValue EmitCXXConstructLValue(const CXXConstructExpr *E); 1078e61c9e80a108b5db7e5f0e702f0e455d737c6390Anders Carlsson LValue EmitCXXBindTemporaryLValue(const CXXBindTemporaryExpr *E); 1079b9ea0b53d323cdca2b8284ff986a878e195cb97fAnders Carlsson LValue EmitCXXExprWithTemporariesLValue(const CXXExprWithTemporaries *E); 1080c2e84ae9a6d25cea3e583c768e576b4c981ec028Mike Stump LValue EmitCXXTypeidLValue(const CXXTypeidExpr *E); 1081b9ea0b53d323cdca2b8284ff986a878e195cb97fAnders Carlsson 10820a04d77bde7e3a661c2b41b60630d125d09ed6efDaniel Dunbar LValue EmitObjCMessageExprLValue(const ObjCMessageExpr *E); 1083391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner LValue EmitObjCIvarRefLValue(const ObjCIvarRefExpr *E); 108485c59edda02df48fae8dc85049743319bc6e7e89Daniel Dunbar LValue EmitObjCPropertyRefLValue(const ObjCPropertyRefExpr *E); 108509105f52b1f28cbb1374c27c3c70f5517e2c465dFariborz Jahanian LValue EmitObjCKVCRefLValue(const ObjCImplicitSetterGetterRefExpr *E); 1086654599454c8e6cc83b1b9b3af43c49c2f66a26cbChris Lattner LValue EmitObjCSuperExprLValue(const ObjCSuperExpr *E); 1087654599454c8e6cc83b1b9b3af43c49c2f66a26cbChris Lattner LValue EmitStmtExprLValue(const StmtExpr *E); 10888bfd31f9dad09cd52225d868bbd92a9bebe87775Fariborz Jahanian LValue EmitPointerToDataMemberBinaryExpr(const BinaryOperator *E); 10898bfd31f9dad09cd52225d868bbd92a9bebe87775Fariborz Jahanian 10905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 1091883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner // Scalar Expression Emission 10925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 10935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10940dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitCall - Generate a call of the given function, expecting the given 10950dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// result type, and using the given argument list which specifies both the 10960dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// LLVM arguments and the types they were derived from. 1097c0ef9f59937c3971c48b6fed37cf5bd8985c024bDaniel Dunbar /// 1098f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// \param TargetDecl - If given, the decl of the function in a direct call; 1099f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// used to set attributes on the call (noreturn, etc.). 110088b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar RValue EmitCall(const CGFunctionInfo &FnInfo, 110188b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar llvm::Value *Callee, 1102f3c47c9525153aea2de0ec4bd615b9cf2d81c103Anders Carlsson ReturnValueSlot ReturnValue, 1103c0ef9f59937c3971c48b6fed37cf5bd8985c024bDaniel Dunbar const CallArgList &Args, 1104c0ef9f59937c3971c48b6fed37cf5bd8985c024bDaniel Dunbar const Decl *TargetDecl = 0); 11051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 110631777a2540879051a3c643b90e02c3fd3d315243Anders Carlsson RValue EmitCall(QualType FnType, llvm::Value *Callee, 1107d2490a91341b57df7a7e54f8a707e7ecde2eeb4eAnders Carlsson ReturnValueSlot ReturnValue, 1108986477149db76e6d9f8d3c9859c9880c11b680aeAnders Carlsson CallExpr::const_arg_iterator ArgBeg, 1109986477149db76e6d9f8d3c9859c9880c11b680aeAnders Carlsson CallExpr::const_arg_iterator ArgEnd, 1110986477149db76e6d9f8d3c9859c9880c11b680aeAnders Carlsson const Decl *TargetDecl = 0); 1111d2490a91341b57df7a7e54f8a707e7ecde2eeb4eAnders Carlsson RValue EmitCallExpr(const CallExpr *E, 1112d2490a91341b57df7a7e54f8a707e7ecde2eeb4eAnders Carlsson ReturnValueSlot ReturnValue = ReturnValueSlot()); 11131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1114566abee1e9828a7700b51e4d17ea08234fde3bb4Anders Carlsson llvm::Value *BuildVirtualCall(const CXXMethodDecl *MD, llvm::Value *This, 1115f0070dbae9535836ad41711081465dec2259786bMike Stump const llvm::Type *Ty); 1116566abee1e9828a7700b51e4d17ea08234fde3bb4Anders Carlsson llvm::Value *BuildVirtualCall(const CXXDestructorDecl *DD, CXXDtorType Type, 1117566abee1e9828a7700b51e4d17ea08234fde3bb4Anders Carlsson llvm::Value *&This, const llvm::Type *Ty); 1118566abee1e9828a7700b51e4d17ea08234fde3bb4Anders Carlsson 1119b9de2c55b2a33776e2bee8ee57df7599b374c8a5Anders Carlsson RValue EmitCXXMemberCall(const CXXMethodDecl *MD, 1120b9de2c55b2a33776e2bee8ee57df7599b374c8a5Anders Carlsson llvm::Value *Callee, 1121a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson ReturnValueSlot ReturnValue, 1122b9de2c55b2a33776e2bee8ee57df7599b374c8a5Anders Carlsson llvm::Value *This, 1123c997d4278d329e18891aac9698fb991b2d4622ebAnders Carlsson llvm::Value *VTT, 1124b9de2c55b2a33776e2bee8ee57df7599b374c8a5Anders Carlsson CallExpr::const_arg_iterator ArgBeg, 1125b9de2c55b2a33776e2bee8ee57df7599b374c8a5Anders Carlsson CallExpr::const_arg_iterator ArgEnd); 1126a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson RValue EmitCXXMemberCallExpr(const CXXMemberCallExpr *E, 1127a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson ReturnValueSlot ReturnValue); 1128a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson RValue EmitCXXMemberPointerCallExpr(const CXXMemberCallExpr *E, 1129a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson ReturnValueSlot ReturnValue); 11305549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek 11310f294632f36459174199b77699e339715244b5abAnders Carlsson RValue EmitCXXOperatorMemberCallExpr(const CXXOperatorCallExpr *E, 1132a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson const CXXMethodDecl *MD, 1133a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson ReturnValueSlot ReturnValue); 11341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1135375c31c4673f83f925de221752cf801c2fbbb246Anders Carlsson 11361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump RValue EmitBuiltinExpr(const FunctionDecl *FD, 1137ef2abfee3ea16ec74942dc09e9e425f46aeb2582Daniel Dunbar unsigned BuiltinID, const CallExpr *E); 11385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1139a1736c0c750d4514a5d8fda36670addf1e4de54aAnders Carlsson RValue EmitBlockCallExpr(const CallExpr *E, ReturnValueSlot ReturnValue); 114009429b962811f2c0a7a81a1b0a89f96f5878b20cMike Stump 11410dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitTargetBuiltinExpr - Emit the given builtin call. Returns 0 if the call 11420dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// is unhandled by the current target. 1143f02e9ddf5efc75917af712b3c7f909581205f0a5Daniel Dunbar llvm::Value *EmitTargetBuiltinExpr(unsigned BuiltinID, const CallExpr *E); 1144f02e9ddf5efc75917af712b3c7f909581205f0a5Daniel Dunbar 11452752c0137d95aa2f4ee1cdff4b564bac842e041bChris Lattner llvm::Value *EmitARMBuiltinExpr(unsigned BuiltinID, const CallExpr *E); 1146564f1de67d7ba43646b8740db86d6269e3dfbe0bAnders Carlsson llvm::Value *EmitX86BuiltinExpr(unsigned BuiltinID, const CallExpr *E); 1147564f1de67d7ba43646b8740db86d6269e3dfbe0bAnders Carlsson llvm::Value *EmitPPCBuiltinExpr(unsigned BuiltinID, const CallExpr *E); 11480dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1149ed7c618f849e2541b1d0288c43154937652c5b15Daniel Dunbar llvm::Value *EmitObjCProtocolExpr(const ObjCProtocolExpr *E); 11507f02f721d48772e4eee4fccd8af4f800be1bbc1eChris Lattner llvm::Value *EmitObjCStringLiteral(const ObjCStringLiteral *E); 11518fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner llvm::Value *EmitObjCSelectorExpr(const ObjCSelectorExpr *E); 11528f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar RValue EmitObjCMessageExpr(const ObjCMessageExpr *E); 11535daf570d0ce027e18ed5f9d66e6b2a14a40b720dFariborz Jahanian RValue EmitObjCPropertyGet(const Expr *E); 1154f469557743f77918d2ca8226e2ee2888998ffd4aFariborz Jahanian RValue EmitObjCSuperPropertyGet(const Expr *Exp, const Selector &S); 115543f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian void EmitObjCPropertySet(const Expr *E, RValue Src); 1156f469557743f77918d2ca8226e2ee2888998ffd4aFariborz Jahanian void EmitObjCSuperPropertySet(const Expr *E, const Selector &S, RValue Src); 11578fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner 11588fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner 11594029ca7ae9d3ffd7738fe2ed8782bebc30f36fd6Anders Carlsson /// EmitReferenceBindingToExpr - Emits a reference binding to the passed in 11604029ca7ae9d3ffd7738fe2ed8782bebc30f36fd6Anders Carlsson /// expression. Will emit a temporary variable if E is not an LValue. 1161a64a869312066ff6119d1d7ae03f88ce499e3f82Anders Carlsson RValue EmitReferenceBindingToExpr(const Expr* E, bool IsInitializer = false); 11623aba09376c5f49c4c8d176109ea4835bc2c528eeAnders Carlsson 1163883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner //===--------------------------------------------------------------------===// 1164bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattner // Expression Emission 1165883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner //===--------------------------------------------------------------------===// 1166bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattner 1167bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattner // Expressions are broken into three classes: scalar, complex, aggregate. 11680dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 11690dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitScalarExpr - Emit the computation of the specified expression of LLVM 11700dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// scalar type, returning the result. 117114c5cbf59cffee52275230922283a247de407712Anders Carlsson llvm::Value *EmitScalarExpr(const Expr *E , bool IgnoreResultAssign = false); 11720dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 11733707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner /// EmitScalarConversion - Emit a conversion from the specified type to the 11743707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner /// specified destination type, both of which are LLVM scalar types. 11753707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner llvm::Value *EmitScalarConversion(llvm::Value *Src, QualType SrcTy, 11763707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner QualType DstTy); 11770dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 11784f1a7b380809b4ca19ad2daff61bc11cd1e979d8Chris Lattner /// EmitComplexToScalarConversion - Emit a conversion from the specified 11790dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// complex type to the specified destination type, where the destination type 11800dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// is an LLVM scalar type. 11814f1a7b380809b4ca19ad2daff61bc11cd1e979d8Chris Lattner llvm::Value *EmitComplexToScalarConversion(ComplexPairTy Src, QualType SrcTy, 11824f1a7b380809b4ca19ad2daff61bc11cd1e979d8Chris Lattner QualType DstTy); 11830dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 11840dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1185883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner /// EmitAggExpr - Emit the computation of the specified expression of 1186883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner /// aggregate type. The result is computed into DestPtr. Note that if 1187883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner /// DestPtr is null, the value of the aggregate expression is not needed. 118849d1cd5a09ed3df353371fd7f206674a85e0fb45Mike Stump void EmitAggExpr(const Expr *E, llvm::Value *DestPtr, bool VolatileDest, 118908c321380fff07d476a19daab6d29522c046cd49Fariborz Jahanian bool IgnoreResult = false, bool IsInitializer = false, 119008c321380fff07d476a19daab6d29522c046cd49Fariborz Jahanian bool RequiresGCollection = false); 11910dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 119218aba0dd518e486d8b50523e7dafb4b5657135d2Daniel Dunbar /// EmitAggExprToLValue - Emit the computation of the specified expression of 119318aba0dd518e486d8b50523e7dafb4b5657135d2Daniel Dunbar /// aggregate type into a temporary LValue. 119418aba0dd518e486d8b50523e7dafb4b5657135d2Daniel Dunbar LValue EmitAggExprToLValue(const Expr *E); 119518aba0dd518e486d8b50523e7dafb4b5657135d2Daniel Dunbar 1196082b02e8403d3ee9d2ded969fbe0e5d472f04cd8Fariborz Jahanian /// EmitGCMemmoveCollectable - Emit special API for structs with object 1197082b02e8403d3ee9d2ded969fbe0e5d472f04cd8Fariborz Jahanian /// pointers. 1198082b02e8403d3ee9d2ded969fbe0e5d472f04cd8Fariborz Jahanian void EmitGCMemmoveCollectable(llvm::Value *DestPtr, llvm::Value *SrcPtr, 119908c321380fff07d476a19daab6d29522c046cd49Fariborz Jahanian QualType Ty); 1200082b02e8403d3ee9d2ded969fbe0e5d472f04cd8Fariborz Jahanian 1201b6ef18a2b06d6760459e1756a61f79ff496cee19Chris Lattner /// EmitComplexExpr - Emit the computation of the specified expression of 120223b1cdb0b5e089468bb8475b8ec9287af67b4b59Chris Lattner /// complex type, returning the result. 12037f79f9be5916c51c35da4f126b7c12596a101607Mike Stump ComplexPairTy EmitComplexExpr(const Expr *E, bool IgnoreReal = false, 12047f79f9be5916c51c35da4f126b7c12596a101607Mike Stump bool IgnoreImag = false, 12057f79f9be5916c51c35da4f126b7c12596a101607Mike Stump bool IgnoreRealAssign = false, 12067f79f9be5916c51c35da4f126b7c12596a101607Mike Stump bool IgnoreImagAssign = false); 12070dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 120823b1cdb0b5e089468bb8475b8ec9287af67b4b59Chris Lattner /// EmitComplexExprIntoAddr - Emit the computation of the specified expression 120923b1cdb0b5e089468bb8475b8ec9287af67b4b59Chris Lattner /// of complex type, storing into the specified Value*. 1210190dbe203c2e892ac40f1786035c6c9be3f44a4cChris Lattner void EmitComplexExprIntoAddr(const Expr *E, llvm::Value *DestAddr, 1211190dbe203c2e892ac40f1786035c6c9be3f44a4cChris Lattner bool DestIsVolatile); 12127f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar 12137f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar /// StoreComplexToAddr - Store a complex number into the specified address. 12147f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar void StoreComplexToAddr(ComplexPairTy V, llvm::Value *DestAddr, 12157f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar bool DestIsVolatile); 12169b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// LoadComplexFromAddr - Load a complex number from the specified address. 12179b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner ComplexPairTy LoadComplexFromAddr(llvm::Value *SrcAddr, bool SrcIsVolatile); 12182621fd1d6d3c5eadcae246859f62738645df7540Chris Lattner 1219f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// CreateStaticBlockVarDecl - Create a zero-initialized LLVM global for a 1220f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// static block var decl. 1221761acc19d966a67f2175783d09412d6ac9463400Chris Lattner llvm::GlobalVariable *CreateStaticBlockVarDecl(const VarDecl &D, 1222761acc19d966a67f2175783d09412d6ac9463400Chris Lattner const char *Separator, 1223f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump llvm::GlobalValue::LinkageTypes Linkage); 1224761acc19d966a67f2175783d09412d6ac9463400Chris Lattner 1225761acc19d966a67f2175783d09412d6ac9463400Chris Lattner /// AddInitializerToGlobalBlockVarDecl - Add the initializer for 'D' to the 1226761acc19d966a67f2175783d09412d6ac9463400Chris Lattner /// global variable that has already been created for it. If the initializer 1227761acc19d966a67f2175783d09412d6ac9463400Chris Lattner /// has a different type than GV does, this may free GV and return a different 1228761acc19d966a67f2175783d09412d6ac9463400Chris Lattner /// one. Otherwise it just returns GV. 1229761acc19d966a67f2175783d09412d6ac9463400Chris Lattner llvm::GlobalVariable * 1230761acc19d966a67f2175783d09412d6ac9463400Chris Lattner AddInitializerToGlobalBlockVarDecl(const VarDecl &D, 1231761acc19d966a67f2175783d09412d6ac9463400Chris Lattner llvm::GlobalVariable *GV); 1232761acc19d966a67f2175783d09412d6ac9463400Chris Lattner 12330096acf421c4609ce7f43e8b05f8c5ca866d4611Daniel Dunbar 1234f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// EmitStaticCXXBlockVarDeclInit - Create the initializer for a C++ runtime 1235f71d232ce5354bd2f0c94ded30fb936c2a3d968bMike Stump /// initialized static block var decl. 12363b2e16b3d25f6b311dba2871e2a566c96238c3d2Anders Carlsson void EmitStaticCXXBlockVarDeclInit(const VarDecl &D, 12373b2e16b3d25f6b311dba2871e2a566c96238c3d2Anders Carlsson llvm::GlobalVariable *GV); 1238e1b29efab32d02e114046d33cca242a88585bf8aAnders Carlsson 12393b2e16b3d25f6b311dba2871e2a566c96238c3d2Anders Carlsson /// EmitCXXGlobalVarDeclInit - Create the initializer for a C++ 12403b2e16b3d25f6b311dba2871e2a566c96238c3d2Anders Carlsson /// variable with global storage. 12413b2e16b3d25f6b311dba2871e2a566c96238c3d2Anders Carlsson void EmitCXXGlobalVarDeclInit(const VarDecl &D, llvm::Constant *DeclPtr); 12423b2e16b3d25f6b311dba2871e2a566c96238c3d2Anders Carlsson 12433b2e16b3d25f6b311dba2871e2a566c96238c3d2Anders Carlsson /// EmitCXXGlobalDtorRegistration - Emits a call to register the global ptr 12443b2e16b3d25f6b311dba2871e2a566c96238c3d2Anders Carlsson /// with the C++ runtime so that its destructor will be called at exit. 124588f4280f6b60edcbdea6a38a3da8b17d66473ad6Fariborz Jahanian void EmitCXXGlobalDtorRegistration(llvm::Constant *DtorFn, 12463b2e16b3d25f6b311dba2871e2a566c96238c3d2Anders Carlsson llvm::Constant *DeclPtr); 12471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1248efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar /// GenerateCXXGlobalInitFunc - Generates code for initializing global 1249efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar /// variables. 1250efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar void GenerateCXXGlobalInitFunc(llvm::Function *Fn, 1251efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar llvm::Constant **Decls, 1252efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar unsigned NumDecls); 1253efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar 1254efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar /// GenerateCXXGlobalDtorFunc - Generates code for destroying global 1255efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar /// variables. 1256efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar void GenerateCXXGlobalDtorFunc(llvm::Function *Fn, 1257efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar const std::vector<std::pair<llvm::Constant*, 1258efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar llvm::Constant*> > &DtorsAndObjects); 1259efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar 1260efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar void GenerateCXXGlobalVarDeclInitFunc(llvm::Function *Fn, const VarDecl *D); 1261efb0fa9e11f75af51744a6159530ef7cc8efa24aDaniel Dunbar 126231ccf377f4a676eb6c205b47eef435de616d5e2dAnders Carlsson void EmitCXXConstructExpr(llvm::Value *Dest, const CXXConstructExpr *E); 12631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1264b58d017f2b9eeed33f2ab3ede968b89cf5296bf2Anders Carlsson RValue EmitCXXExprWithTemporaries(const CXXExprWithTemporaries *E, 12651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump llvm::Value *AggLoc = 0, 126614c5cbf59cffee52275230922283a247de407712Anders Carlsson bool IsAggLocVolatile = false, 126714c5cbf59cffee52275230922283a247de407712Anders Carlsson bool IsInitializer = false); 12681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1269756b5c4f9d52642d87d1948bee58f97a4f795b24Anders Carlsson void EmitCXXThrowExpr(const CXXThrowExpr *E); 1270c2e84ae9a6d25cea3e583c768e576b4c981ec028Mike Stump 12710ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar //===--------------------------------------------------------------------===// 12720ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar // Internal Helpers 12730ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar //===--------------------------------------------------------------------===// 12740dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 12750946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner /// ContainsLabel - Return true if the statement contains a label in it. If 12760946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner /// this statement is not executed normally, it not containing a label means 12770946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner /// that we can just remove the code. 12780946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner static bool ContainsLabel(const Stmt *S, bool IgnoreCaseStmts = false); 12790dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 12804bc0455d826e9634b7a68c0d06146edd633c9453Daniel Dunbar /// ConstantFoldsToSimpleInteger - If the specified expression does not fold 128131a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// to a constant, or if it does but contains a label, return 0. If it 128231a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// constant folds to 'true' and does not contain a label, return 1, if it 128331a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// constant folds to 'false' and does not contain a label, return -1. 128431a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner int ConstantFoldsToSimpleInteger(const Expr *Cond); 12850dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 128631a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// EmitBranchOnBoolExpr - Emit a branch on a boolean condition (e.g. for an 128731a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// if statement) to the specified blocks. Based on the condition, this might 128831a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// try to simplify the codegen of the conditional based on the branch. 12899bc47e29dce8f095be7a6d07dbb02a5a7a112949Chris Lattner void EmitBranchOnBoolExpr(const Expr *Cond, llvm::BasicBlock *TrueBlock, 12904bc0455d826e9634b7a68c0d06146edd633c9453Daniel Dunbar llvm::BasicBlock *FalseBlock); 1291be07f60131bc6f8d6696f4644df1ef667a1730d5Mike Stump 129215037caa1542bb810ad54c653aeb80f61df7b00cMike Stump /// getTrapBB - Create a basic block that will call the trap intrinsic. We'll 129315037caa1542bb810ad54c653aeb80f61df7b00cMike Stump /// generate a branch around the created basic block as necessary. 129415037caa1542bb810ad54c653aeb80f61df7b00cMike Stump llvm::BasicBlock* getTrapBB(); 129531a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattnerprivate: 12960dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 129729e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar void EmitReturnOfRValue(RValue RV, QualType Ty); 129829e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar 12995627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// ExpandTypeFromArgs - Reconstruct a structure of type \arg Ty 13005627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// from function arguments into \arg Dst. See ABIArgInfo::Expand. 13015627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// 13025627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// \param AI - The first function argument of the expansion. 13035627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// \return The argument following the last expanded function 13045627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// argument. 13050dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump llvm::Function::arg_iterator 13065627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar ExpandTypeFromArgs(QualType Ty, LValue Dst, 13075627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar llvm::Function::arg_iterator AI); 13085627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar 13090dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// ExpandTypeToArgs - Expand an RValue \arg Src, with the LLVM type for \arg 13100dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// Ty, into individual arguments on the provided vector \arg Args. See 13110dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// ABIArgInfo::Expand. 13120dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump void ExpandTypeToArgs(QualType Ty, RValue Src, 13135627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar llvm::SmallVector<llvm::Value*, 16> &Args); 1314c8c7b187adcd989e01a9fba1ebead6c2abd770c9Anders Carlsson 13151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump llvm::Value* EmitAsmInput(const AsmStmt &S, 1316b84e8a670ad1d00c0a34295c42ac700cdde04815Daniel Dunbar const TargetInfo::ConstraintInfo &Info, 1317c8c7b187adcd989e01a9fba1ebead6c2abd770c9Anders Carlsson const Expr *InputExpr, std::string &ConstraintStr); 13180dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1319c71c845fe77ee1f891d60232ec320912d88557eeAnders Carlsson /// EmitCleanupBlock - emits a single cleanup block. 1320c71c845fe77ee1f891d60232ec320912d88557eeAnders Carlsson void EmitCleanupBlock(); 1321c71c845fe77ee1f891d60232ec320912d88557eeAnders Carlsson 132287eaf17cc88516277e4389dfa15df93ecfdce559Anders Carlsson /// AddBranchFixup - adds a branch instruction to the list of fixups for the 132387eaf17cc88516277e4389dfa15df93ecfdce559Anders Carlsson /// current cleanup scope. 132487eaf17cc88516277e4389dfa15df93ecfdce559Anders Carlsson void AddBranchFixup(llvm::BranchInst *BI); 13250dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 13260139bb96494b4c4ba0824617d5d2495dc7e44c76Anders Carlsson /// EmitCallArg - Emit a single call argument. 13270139bb96494b4c4ba0824617d5d2495dc7e44c76Anders Carlsson RValue EmitCallArg(const Expr *E, QualType ArgType); 13281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13290139bb96494b4c4ba0824617d5d2495dc7e44c76Anders Carlsson /// EmitCallArgs - Emit call arguments for a function. 13301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// The CallArgTypeInfo parameter is used for iterating over the known 1331af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson /// argument types of the function being called. 1332af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson template<typename T> 1333af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson void EmitCallArgs(CallArgList& Args, const T* CallArgTypeInfo, 13340139bb96494b4c4ba0824617d5d2495dc7e44c76Anders Carlsson CallExpr::const_arg_iterator ArgBeg, 1335af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson CallExpr::const_arg_iterator ArgEnd) { 1336af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson CallExpr::const_arg_iterator Arg = ArgBeg; 1337af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson 1338af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson // First, use the argument types that the type info knows about 1339af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson if (CallArgTypeInfo) { 1340af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson for (typename T::arg_type_iterator I = CallArgTypeInfo->arg_type_begin(), 1341af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson E = CallArgTypeInfo->arg_type_end(); I != E; ++I, ++Arg) { 134244b0a3e858af7b19f489619e52cd58970611cd15Eli Friedman assert(Arg != ArgEnd && "Running over edge of argument list!"); 1343af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson QualType ArgType = *I; 1344af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson 1345af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson assert(getContext().getCanonicalType(ArgType.getNonReferenceType()). 13461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getTypePtr() == 13471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getContext().getCanonicalType(Arg->getType()).getTypePtr() && 1348af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson "type mismatch in call argument!"); 13491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Args.push_back(std::make_pair(EmitCallArg(*Arg, ArgType), 1351af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson ArgType)); 1352af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson } 13531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Either we've emitted all the call args, or we have a call to a 1355af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson // variadic function. 13561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert((Arg == ArgEnd || CallArgTypeInfo->isVariadic()) && 1357af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson "Extra arguments in non-variadic function!"); 13581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1359af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson } 13601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1361af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson // If we still have any arguments, emit them using the type of the argument. 1362af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson for (; Arg != ArgEnd; ++Arg) { 1363af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson QualType ArgType = Arg->getType(); 1364af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson Args.push_back(std::make_pair(EmitCallArg(*Arg, ArgType), 1365af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson ArgType)); 1366af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson } 1367af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson } 1368492c4f998d848673d3d6c9e6416115df4036a71dJohn McCall 1369492c4f998d848673d3d6c9e6416115df4036a71dJohn McCall const TargetCodeGenInfo &getTargetHooks() const { 1370492c4f998d848673d3d6c9e6416115df4036a71dJohn McCall return CGM.getTargetCodeGenInfo(); 1371492c4f998d848673d3d6c9e6416115df4036a71dJohn McCall } 13725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 13731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1374af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson 13755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace CodeGen 13765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace clang 13775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#endif 1379