CodeGenFunction.h revision 49d1cd5a09ed3df353371fd7f206674a85e0fb45
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" 20481769b5dc102b0256b35581e787909ad5edfab5Chris Lattner#include "clang/Basic/TargetInfo.h" 21481769b5dc102b0256b35581e787909ad5edfab5Chris Lattner#include "llvm/ADT/DenseMap.h" 22481769b5dc102b0256b35581e787909ad5edfab5Chris Lattner#include "llvm/ADT/SmallVector.h" 23481769b5dc102b0256b35581e787909ad5edfab5Chris Lattner#include "llvm/Support/ValueHandle.h" 240ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar#include <map> 2596bd13ae1ab89f5a04b3ad3ec8ec1864cbba3482Mike Stump#include "CGBlocks.h" 2645d196b8387dcefc4df26cda114fa34c6528e928Daniel Dunbar#include "CGBuilder.h" 270dbe227feccf6a8dbadfff8ca3f80416b7bf2f28Daniel Dunbar#include "CGCall.h" 28b14095aa98c6fedd3625920c4ce834bcaf24d9f7Anders Carlsson#include "CGCXX.h" 298f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar#include "CGValue.h" 308f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar 315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace llvm { 32c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class BasicBlock; 335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class Module; 34898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar class SwitchInst; 35ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar class Value; 365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace clang { 395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class ASTContext; 405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class Decl; 41c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class EnumConstantDecl; 425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class FunctionDecl; 4372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor class FunctionProtoType; 44c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class LabelStmt; 45679a502d462ef819e6175b58e255ca3f3391e7cfFariborz Jahanian class ObjCContainerDecl; 4629e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar class ObjCInterfaceDecl; 4729e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar class ObjCIvarDecl; 48391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner class ObjCMethodDecl; 49fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian class ObjCImplementationDecl; 50af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar class ObjCPropertyImplDecl; 515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class TargetInfo; 52c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class VarDecl; 5316f0049415ec596504891259e2a83e19871c0d52Chris Lattner class ObjCForCollectionStmt; 5416f0049415ec596504891259e2a83e19871c0d52Chris Lattner class ObjCAtTryStmt; 5516f0049415ec596504891259e2a83e19871c0d52Chris Lattner class ObjCAtThrowStmt; 5616f0049415ec596504891259e2a83e19871c0d52Chris Lattner class ObjCAtSynchronizedStmt; 575549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek 585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace CodeGen { 595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class CodeGenModule; 60b84a06e68ffd71da22e3c75b6e4bbdba37816413Devang Patel class CodeGenTypes; 61e896d98548b02223c7740d807a0aa6e20fba7079Anders Carlsson class CGDebugInfo; 62bb36d331f439f49859efcfb4435c61762fbba6f9Daniel Dunbar class CGFunctionInfo; 630dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump class CGRecordLayout; 640dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// CodeGenFunction - This class organizes the per-function state that is used 665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// while generating LLVM code. 672a998148a6823c44d67da347c95eb2ea21f6b986Mike Stumpclass CodeGenFunction : public BlockFunction { 688a219ceda2b5afd447e7199b9c53079bead31b89Anders Carlsson CodeGenFunction(const CodeGenFunction&); // DO NOT IMPLEMENT 698a219ceda2b5afd447e7199b9c53079bead31b89Anders Carlsson void operator=(const CodeGenFunction&); // DO NOT IMPLEMENT 70bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattnerpublic: 715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CodeGenModule &CGM; // Per-module state. 725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer TargetInfo &Target; 730dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 7458dee10ed2eee34035f62d1c2d32b3639e9182f8Chris Lattner typedef std::pair<llvm::Value *, llvm::Value *> ComplexPairTy; 7545d196b8387dcefc4df26cda114fa34c6528e928Daniel Dunbar CGBuilderTy Builder; 760dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 77b5437d238752dc297e42410e98d38d5250fe0463Chris Lattner /// CurFuncDecl - Holds the Decl for the current function or ObjC method. 78b5437d238752dc297e42410e98d38d5250fe0463Chris Lattner /// This excludes BlockDecls. 794111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner const Decl *CurFuncDecl; 80b5437d238752dc297e42410e98d38d5250fe0463Chris Lattner /// CurCodeDecl - This is the inner-most code context, which includes blocks. 81b5437d238752dc297e42410e98d38d5250fe0463Chris Lattner const Decl *CurCodeDecl; 8288b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar const CGFunctionInfo *CurFnInfo; 83391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner QualType FnRetTy; 845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::Function *CurFn; 855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 865ca2084cf9b529563209429857f01fdae9dcdfa5Daniel Dunbar /// ReturnBlock - Unified return block. 875ca2084cf9b529563209429857f01fdae9dcdfa5Daniel Dunbar llvm::BasicBlock *ReturnBlock; 880dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// ReturnValue - The temporary alloca to hold the return value. This is null 890dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// iff the function has no return value. 905ca2084cf9b529563209429857f01fdae9dcdfa5Daniel Dunbar llvm::Instruction *ReturnValue; 910dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// AllocaInsertPoint - This is an instruction in the entry block before which 935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// we prefer to insert allocas. 94481769b5dc102b0256b35581e787909ad5edfab5Chris Lattner llvm::AssertingVH<llvm::Instruction> AllocaInsertPt; 950ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar 965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const llvm::Type *LLVMIntTy; 977b66000bdfc2684351fb03208e672f23012ed569Hartmut Kaiser uint32_t LLVMPointerWidth; 9818ccc7776ad6288c5f630dc7967fb99d099c9cd9Daniel Dunbar 9918ccc7776ad6288c5f630dc7967fb99d099c9cd9Daniel Dunbarpublic: 100fa1f756f88f4e6f3da2673082fdc1e8f54bccd6fAnders Carlsson /// ObjCEHValueStack - Stack of Objective-C exception values, used for 101fa1f756f88f4e6f3da2673082fdc1e8f54bccd6fAnders Carlsson /// rethrows. 102273558fbd891a0872e620e0d3d109b92c1160d72Anders Carlsson llvm::SmallVector<llvm::Value*, 8> ObjCEHValueStack; 1030dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1046fc559136b8ef98bfb824a0fd49df385405f2879Anders Carlsson /// PushCleanupBlock - Push a new cleanup entry on the stack and set the 1056fc559136b8ef98bfb824a0fd49df385405f2879Anders Carlsson /// passed in block as the cleanup block. 1066fc559136b8ef98bfb824a0fd49df385405f2879Anders Carlsson void PushCleanupBlock(llvm::BasicBlock *CleanupBlock); 107bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson 1080dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// CleanupBlockInfo - A struct representing a popped cleanup block. 109bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson struct CleanupBlockInfo { 110bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson /// CleanupBlock - the cleanup block 111bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson llvm::BasicBlock *CleanupBlock; 1120dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1130dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// SwitchBlock - the block (if any) containing the switch instruction used 1140dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// for jumping to the final destination. 115bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson llvm::BasicBlock *SwitchBlock; 1160dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 117bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson /// EndBlock - the default destination for the switch instruction. 118bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson llvm::BasicBlock *EndBlock; 1190dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1200dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump CleanupBlockInfo(llvm::BasicBlock *cb, llvm::BasicBlock *sb, 121bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson llvm::BasicBlock *eb) 122bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson : CleanupBlock(cb), SwitchBlock(sb), EndBlock(eb) {} 123bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson }; 124bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson 125bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson /// PopCleanupBlock - Will pop the cleanup entry on the stack, process all 1260dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// branch fixups and return a block info struct with the switch block and end 1270dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// block. 128bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson CleanupBlockInfo PopCleanupBlock(); 1290dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1300dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// CleanupScope - RAII object that will create a cleanup block and set the 1310dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// insert point to that block. When destructed, it sets the insert point to 1320dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// the previous block and pushes a new cleanup entry on the stack. 1330d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson class CleanupScope { 1340d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson CodeGenFunction& CGF; 1350d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson llvm::BasicBlock *CurBB; 1366fc559136b8ef98bfb824a0fd49df385405f2879Anders Carlsson llvm::BasicBlock *CleanupBB; 1370dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1380d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson public: 1390d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson CleanupScope(CodeGenFunction &cgf) 1400d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson : CGF(cgf), CurBB(CGF.Builder.GetInsertBlock()) { 1416fc559136b8ef98bfb824a0fd49df385405f2879Anders Carlsson CleanupBB = CGF.createBasicBlock("cleanup"); 1426fc559136b8ef98bfb824a0fd49df385405f2879Anders Carlsson CGF.Builder.SetInsertPoint(CleanupBB); 1430d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson } 1440dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1450d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson ~CleanupScope() { 1466fc559136b8ef98bfb824a0fd49df385405f2879Anders Carlsson CGF.PushCleanupBlock(CleanupBB); 1470d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson CGF.Builder.SetInsertPoint(CurBB); 1480d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson } 1490d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson }; 1500d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson 151c71c845fe77ee1f891d60232ec320912d88557eeAnders Carlsson /// EmitCleanupBlocks - Takes the old cleanup stack size and emits the cleanup 152c71c845fe77ee1f891d60232ec320912d88557eeAnders Carlsson /// blocks that have been added. 153c71c845fe77ee1f891d60232ec320912d88557eeAnders Carlsson void EmitCleanupBlocks(size_t OldCleanupStackSize); 154c71c845fe77ee1f891d60232ec320912d88557eeAnders Carlsson 15587eaf17cc88516277e4389dfa15df93ecfdce559Anders Carlsson /// EmitBranchThroughCleanup - Emit a branch from the current insert block 15687eaf17cc88516277e4389dfa15df93ecfdce559Anders Carlsson /// through the cleanup handling code (if any) and then on to \arg Dest. 15787eaf17cc88516277e4389dfa15df93ecfdce559Anders Carlsson /// 1580dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// FIXME: Maybe this should really be in EmitBranch? Don't we always want 15987eaf17cc88516277e4389dfa15df93ecfdce559Anders Carlsson /// this behavior for branches? 16087eaf17cc88516277e4389dfa15df93ecfdce559Anders Carlsson void EmitBranchThroughCleanup(llvm::BasicBlock *Dest); 1610dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1627f02f721d48772e4eee4fccd8af4f800be1bbc1eChris Lattnerprivate: 163e896d98548b02223c7740d807a0aa6e20fba7079Anders Carlsson CGDebugInfo* DebugInfo; 16409429b962811f2c0a7a81a1b0a89f96f5878b20cMike Stump 1650dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// LabelIDs - Track arbitrary ids assigned to labels for use in implementing 1660dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// the GCC address-of-label extension and indirect goto. IDs are assigned to 1670dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// labels inside getIDForAddrOfLabel(). 1680ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar std::map<const LabelStmt*, unsigned> LabelIDs; 1690ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar 1700ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar /// IndirectSwitches - Record the list of switches for indirect 1710dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// gotos. Emission of the actual switching code needs to be delayed until all 1720dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// AddrLabelExprs have been seen. 1730ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar std::vector<llvm::SwitchInst*> IndirectSwitches; 1740ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar 1750dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// LocalDeclMap - This keeps track of the LLVM allocas or globals for local C 1760dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// decls. 1775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::DenseMap<const Decl*, llvm::Value*> LocalDeclMap; 1785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// LabelMap - This keeps track of the LLVM basic block for each C label. 1805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::DenseMap<const LabelStmt*, llvm::BasicBlock*> LabelMap; 1810dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1820dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // BreakContinueStack - This keeps track of where break and continue 183e4b6d342c29d5cb9d311756100df1603810fa892Anders Carlsson // statements should jump to. 184da13870e99fe33934b2122f06528a5063f78ae4cChris Lattner struct BreakContinue { 185e4b6d342c29d5cb9d311756100df1603810fa892Anders Carlsson BreakContinue(llvm::BasicBlock *bb, llvm::BasicBlock *cb) 186e4b6d342c29d5cb9d311756100df1603810fa892Anders Carlsson : BreakBlock(bb), ContinueBlock(cb) {} 1870dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 188da13870e99fe33934b2122f06528a5063f78ae4cChris Lattner llvm::BasicBlock *BreakBlock; 189da13870e99fe33934b2122f06528a5063f78ae4cChris Lattner llvm::BasicBlock *ContinueBlock; 1900dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump }; 191da13870e99fe33934b2122f06528a5063f78ae4cChris Lattner llvm::SmallVector<BreakContinue, 8> BreakContinueStack; 19218ccc7776ad6288c5f630dc7967fb99d099c9cd9Daniel Dunbar 1930dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// SwitchInsn - This is nearest current switch instruction. It is null if if 1940dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// current context is not in a switch. 19551b09f2c528c8460b5465c676173324e44176d62Devang Patel llvm::SwitchInst *SwitchInsn; 19651b09f2c528c8460b5465c676173324e44176d62Devang Patel 1970dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// CaseRangeBlock - This block holds if condition check for last case 19880fd5f96e6805ac43aab99faabd5b4c8b19551b7Devang Patel /// statement range in current switch instruction. 199c049e4f406a7f7179eba98659044a32508e53289Devang Patel llvm::BasicBlock *CaseRangeBlock; 200c049e4f406a7f7179eba98659044a32508e53289Devang Patel 2019834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar /// InvokeDest - This is the nearest exception target for calls 2029834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar /// which can unwind, when exceptions are being used. 2039834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar llvm::BasicBlock *InvokeDest; 2049834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar 2050dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // VLASizeMap - This keeps track of the associated size for each VLA type. 2060dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // FIXME: Maybe this could be a stack of maps that is pushed/popped as we 2070dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // enter/leave scopes. 208dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson llvm::DenseMap<const VariableArrayType*, llvm::Value*> VLASizeMap; 2090dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 2104cc1a4703363ff940b6273aeef9d96a87edeb04bAnders Carlsson /// DidCallStackSave - Whether llvm.stacksave has been called. Used to avoid 2114cc1a4703363ff940b6273aeef9d96a87edeb04bAnders Carlsson /// calling llvm.stacksave for multiple VLAs in the same scope. 2124cc1a4703363ff940b6273aeef9d96a87edeb04bAnders Carlsson bool DidCallStackSave; 21309429b962811f2c0a7a81a1b0a89f96f5878b20cMike Stump 2146ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson struct CleanupEntry { 2156ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson /// CleanupBlock - The block of code that does the actual cleanup. 2166ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson llvm::BasicBlock *CleanupBlock; 2170dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 2186ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson /// Blocks - Basic blocks that were emitted in the current cleanup scope. 219bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson std::vector<llvm::BasicBlock *> Blocks; 2206ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson 2216ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson /// BranchFixups - Branch instructions to basic blocks that haven't been 2226ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson /// inserted into the current function yet. 223bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson std::vector<llvm::BranchInst *> BranchFixups; 2246ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson 2256ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson explicit CleanupEntry(llvm::BasicBlock *cb) 2266ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson : CleanupBlock(cb) {} 2276ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson }; 2280dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 2296ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson /// CleanupEntries - Stack of cleanup entries. 2306ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson llvm::SmallVector<CleanupEntry, 8> CleanupEntries; 2316ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson 232bd6fa3d032acd7eafc6c10827c41103df45beab7Anders Carlsson typedef llvm::DenseMap<llvm::BasicBlock*, size_t> BlockScopeMap; 233bd6fa3d032acd7eafc6c10827c41103df45beab7Anders Carlsson 234bd6fa3d032acd7eafc6c10827c41103df45beab7Anders Carlsson /// BlockScopes - Map of which "cleanup scope" scope basic blocks have. 235bd6fa3d032acd7eafc6c10827c41103df45beab7Anders Carlsson BlockScopeMap BlockScopes; 2360dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 2372b77ba8bc7a842829ad9193816dc1d7d5e9c5be6Anders Carlsson /// CXXThisDecl - When parsing an C++ function, this will hold the implicit 2382b77ba8bc7a842829ad9193816dc1d7d5e9c5be6Anders Carlsson /// 'this' declaration. 2392b77ba8bc7a842829ad9193816dc1d7d5e9c5be6Anders Carlsson ImplicitParamDecl *CXXThisDecl; 2402b77ba8bc7a842829ad9193816dc1d7d5e9c5be6Anders Carlsson 2415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 2425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CodeGenFunction(CodeGenModule &cgm); 2430dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 2445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ASTContext &getContext() const; 245e896d98548b02223c7740d807a0aa6e20fba7079Anders Carlsson CGDebugInfo *getDebugInfo() { return DebugInfo; } 2465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2479834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar llvm::BasicBlock *getInvokeDest() { return InvokeDest; } 2489834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar void setInvokeDest(llvm::BasicBlock *B) { InvokeDest = B; } 2499834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar 2509834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar //===--------------------------------------------------------------------===// 2519834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar // Objective-C 2529834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar //===--------------------------------------------------------------------===// 2539834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar 254391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner void GenerateObjCMethod(const ObjCMethodDecl *OMD); 255af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 2560dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump void StartObjCMethod(const ObjCMethodDecl *MD, 257679a502d462ef819e6175b58e255ca3f3391e7cfFariborz Jahanian const ObjCContainerDecl *CD); 258af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 2590dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// GenerateObjCGetter - Synthesize an Objective-C property getter function. 260fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian void GenerateObjCGetter(ObjCImplementationDecl *IMP, 261fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian const ObjCPropertyImplDecl *PID); 262af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 2630dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// GenerateObjCSetter - Synthesize an Objective-C property setter function 2640dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// for the given property. 265fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian void GenerateObjCSetter(ObjCImplementationDecl *IMP, 266fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian const ObjCPropertyImplDecl *PID); 267af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 2684e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump //===--------------------------------------------------------------------===// 2694e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump // Block Bits 2704e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump //===--------------------------------------------------------------------===// 2714e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump 2728a2b4b1c5b960710db95e9b296d9a600aee37c00Mike Stump llvm::Value *BuildBlockLiteralTmp(const BlockExpr *); 273a803b0e6ca0d1c71a0b3f5d7380da8bbacf2f983Mike Stump llvm::Constant *BuildDescriptorBlockDecl(bool BlockHasCopyDispose, 274a803b0e6ca0d1c71a0b3f5d7380da8bbacf2f983Mike Stump uint64_t Size, 2750892099dbc640720400a1d9decd2733a09d733e5Mike Stump const llvm::StructType *, 2760892099dbc640720400a1d9decd2733a09d733e5Mike Stump std::vector<HelperInfo> *); 2774e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump 278161d36de7ee686b09525bb919ad1b20592e499fcChris Lattner llvm::Function *GenerateBlockFunction(const BlockExpr *BExpr, 2794e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump const BlockInfo& Info, 2806cc88f78fd36d3511b89412b193494b3e423cbffMike Stump const Decl *OuterFuncDecl, 2817f28a9c37e67ae16396042ad9c085830969daf29Mike Stump llvm::DenseMap<const Decl*, llvm::Value*> ldm, 2828a2b4b1c5b960710db95e9b296d9a600aee37c00Mike Stump uint64_t &Size, uint64_t &Align, 28300470a1c4c44c5ed26bad9a38b4d3904b02d7a28Mike Stump llvm::SmallVector<const Expr *, 8> &subBlockDeclRefDecls, 28400470a1c4c44c5ed26bad9a38b4d3904b02d7a28Mike Stump bool &subBlockHasCopyDispose); 2854e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump 2866cc88f78fd36d3511b89412b193494b3e423cbffMike Stump void BlockForwardSelf(); 2874e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump llvm::Value *LoadBlockStruct(); 2884e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump 289a99038c0757a836c6faeeddaa5dfd249b32f6e9eMike Stump llvm::Value *GetAddrOfBlockDecl(const BlockDeclRefExpr *E); 29030395dd7b77ec1abfae9ebfcacf86f5d72b91fefMike Stump 291dab514fc30242c7afd6c03956e46136c400fb0d3Mike Stump const llvm::Type *BuildByRefType(QualType Ty, uint64_t Align); 292dab514fc30242c7afd6c03956e46136c400fb0d3Mike Stump 293bd012ff1fa088181646a784f385b28867372d434Daniel Dunbar void GenerateCode(const FunctionDecl *FD, 294bd012ff1fa088181646a784f385b28867372d434Daniel Dunbar llvm::Function *Fn); 2950dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump void StartFunction(const Decl *D, QualType RetTy, 2967c086516f3cc9fba2733b1919973206c6ba4b171Daniel Dunbar llvm::Function *Fn, 2972284ac9ec80299fcdefae9a2787cf85105a0f203Daniel Dunbar const FunctionArgList &Args, 2982284ac9ec80299fcdefae9a2787cf85105a0f203Daniel Dunbar SourceLocation StartLoc); 299a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 3000dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitReturnBlock - Emit the unified return block, trying to avoid its 3010dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// emission when possible. 3021c1d6074f5a0296dd273362655b1b8f9057289e3Daniel Dunbar void EmitReturnBlock(); 3031c1d6074f5a0296dd273362655b1b8f9057289e3Daniel Dunbar 3040dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// FinishFunction - Complete IR generation of the current function. It is 3050dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// legal to call this function even if there is no current insertion point. 306af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar void FinishFunction(SourceLocation EndLoc=SourceLocation()); 30717b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar 3080dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitFunctionProlog - Emit the target specific LLVM code to load the 3090dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// arguments for the given function. This is also responsible for naming the 3100dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// LLVM function arguments. 31188b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar void EmitFunctionProlog(const CGFunctionInfo &FI, 31288b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar llvm::Function *Fn, 31317b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar const FunctionArgList &Args); 31417b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar 3150dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitFunctionEpilog - Emit the target specific LLVM code to return the 3160dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// given temporary. 31788b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar void EmitFunctionEpilog(const CGFunctionInfo &FI, llvm::Value *ReturnValue); 31817b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar 3198b1a343b6b360d63d5dc8a6beb841ce4414c1e00Daniel Dunbar const llvm::Type *ConvertTypeForMem(QualType T); 3205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const llvm::Type *ConvertType(QualType T); 321c8aa5f1f264fb230c38182adab944232bb160c2bChris Lattner 3220dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// LoadObjCSelf - Load the value of self. This function is only valid while 3230dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// generating code for an Objective-C method. 324c8aa5f1f264fb230c38182adab944232bb160c2bChris Lattner llvm::Value *LoadObjCSelf(); 3250dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 3260dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// TypeOfSelfObject - Return type of object that this self represents. 32745012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian QualType TypeOfSelfObject(); 3284111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner 3295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// hasAggregateLLVMType - Return true if the specified AST type will map into 3305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// an aggregate LLVM type or is void. 3315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool hasAggregateLLVMType(QualType T); 33255e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar 33355e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar /// createBasicBlock - Create an LLVM basic block. 3340dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump llvm::BasicBlock *createBasicBlock(const char *Name="", 33555e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar llvm::Function *Parent=0, 33655e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar llvm::BasicBlock *InsertBefore=0) { 33729ea6729155c759836be4b5453bee9ef8e1e97eeDaniel Dunbar#ifdef NDEBUG 33829ea6729155c759836be4b5453bee9ef8e1e97eeDaniel Dunbar return llvm::BasicBlock::Create("", Parent, InsertBefore); 33929ea6729155c759836be4b5453bee9ef8e1e97eeDaniel Dunbar#else 34055e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar return llvm::BasicBlock::Create(Name, Parent, InsertBefore); 34129ea6729155c759836be4b5453bee9ef8e1e97eeDaniel Dunbar#endif 34255e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar } 3430dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 3445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getBasicBlockForLabel - Return the LLVM basicblock that the specified 3455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// label maps to. 3465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::BasicBlock *getBasicBlockForLabel(const LabelStmt *S); 3470dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 348aa5bd87f1fd5f9ca47924248817c89325759b30eDaniel Dunbar /// SimplifyForwardingBlocks - If the given basic block is only a 349aa5bd87f1fd5f9ca47924248817c89325759b30eDaniel Dunbar /// branch to another basic block, simplify it. This assumes that no 350aa5bd87f1fd5f9ca47924248817c89325759b30eDaniel Dunbar /// other code could potentially reference the basic block. 351aa5bd87f1fd5f9ca47924248817c89325759b30eDaniel Dunbar void SimplifyForwardingBlocks(llvm::BasicBlock *BB); 352aa5bd87f1fd5f9ca47924248817c89325759b30eDaniel Dunbar 3530dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitBlock - Emit the given block \arg BB and set it as the insert point, 3540dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// adding a fall-through branch from the current insert block if 3550dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// necessary. It is legal to call this function even if there is no current 3560dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// insertion point. 357a0c21a8faa79e88ac432d116eca58f7a7217195dDaniel Dunbar /// 3580dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// IsFinished - If true, indicates that the caller has finished emitting 3590dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// branches to the given block and does not expect to emit code into it. This 3600dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// means the block can be ignored if it is unreachable. 361a0c21a8faa79e88ac432d116eca58f7a7217195dDaniel Dunbar void EmitBlock(llvm::BasicBlock *BB, bool IsFinished=false); 362824e3bd76b2e32db2ec6e4d2d113413e518d1c63Daniel Dunbar 3630dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitBranch - Emit a branch to the specified basic block from the current 3640dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// insert block, taking care to avoid creation of branches from dummy 3650dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// blocks. It is legal to call this function even if there is no current 3660dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// insertion point. 3675e08ad3cc62ab94649959ae227a9a411a729bf49Daniel Dunbar /// 3680dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// This function clears the current insertion point. The caller should follow 3690dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// calls to this function with calls to Emit*Block prior to generation new 3700dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// code. 371d57a871339c7c98d58d93108b806f59bdf4e13e2Daniel Dunbar void EmitBranch(llvm::BasicBlock *Block); 372d57a871339c7c98d58d93108b806f59bdf4e13e2Daniel Dunbar 3730dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// HaveInsertPoint - True if an insertion point is defined. If not, this 3740dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// indicates that the current code being emitted is unreachable. 3750dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump bool HaveInsertPoint() const { 376a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar return Builder.GetInsertBlock() != 0; 377a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar } 378a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 3790dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EnsureInsertPoint - Ensure that an insertion point is defined so that 3800dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// emitted IR has a place to go. Note that by definition, if this function 3810dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// creates a block then that block is unreachable; callers may do better to 3820dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// detect when no insertion point is defined and simply skip IR generation. 383a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar void EnsureInsertPoint() { 384a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar if (!HaveInsertPoint()) 385a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar EmitBlock(createBasicBlock()); 386a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar } 3870dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 388488e993a135ce700b982bf099c3d6b856301d642Daniel Dunbar /// ErrorUnsupported - Print out an error that codegen doesn't support the 389dc5e8268292046114ffe02e48773572a91a310f1Chris Lattner /// specified stmt yet. 39090df4b6661968a84bf64baee489bb2f6d948fcc1Daniel Dunbar void ErrorUnsupported(const Stmt *S, const char *Type, 39190df4b6661968a84bf64baee489bb2f6d948fcc1Daniel Dunbar bool OmitOnError=false); 3925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 3945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Helpers 3955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 3960dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 3975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// CreateTempAlloca - This creates a alloca and inserts it into the entry 3985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// block. 3995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::AllocaInst *CreateTempAlloca(const llvm::Type *Ty, 4005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *Name = "tmp"); 4010dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 4025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EvaluateExprAsBool - Perform the usual unary conversions on the specified 4035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// expression and compare the result against zero, returning an Int1Ty value. 4045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::Value *EvaluateExprAsBool(const Expr *E); 4055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4069b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// EmitAnyExpr - Emit code to compute the specified expression which can have 4079b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// any type. The result is returned as an RValue struct. If this is an 4089b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// aggregate expression, the aggloc/agglocvolatile arguments indicate where 4099b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// the result should be returned. 41049d1cd5a09ed3df353371fd7f206674a85e0fb45Mike Stump /// 41149d1cd5a09ed3df353371fd7f206674a85e0fb45Mike Stump /// \param IgnoreResult - True if the resulting value isn't used. 4120dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump RValue EmitAnyExpr(const Expr *E, llvm::Value *AggLoc = 0, 41349d1cd5a09ed3df353371fd7f206674a85e0fb45Mike Stump bool isAggLocVolatile = false, bool IgnoreResult = false); 414d9363c3a80168283b3da518b4e17f545a6246857Devang Patel 4150dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // EmitVAListRef - Emit a "reference" to a va_list; this is either the address 4160dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // or the value of the expression, depending on how va_list is defined. 4174fd0aa5803357d8c72eeac2cae15e12649ea08feEli Friedman llvm::Value *EmitVAListRef(const Expr *E); 4184fd0aa5803357d8c72eeac2cae15e12649ea08feEli Friedman 4190dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitAnyExprToTemp - Similary to EmitAnyExpr(), however, the result will 4200dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// always be accessible even if no aggregate location is provided. 4210dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump RValue EmitAnyExprToTemp(const Expr *E, llvm::Value *AggLoc = 0, 42246f45b9bec4a265ad8400a538e5ec3a5683617f1Daniel Dunbar bool isAggLocVolatile = false); 42346f45b9bec4a265ad8400a538e5ec3a5683617f1Daniel Dunbar 42427fe2e6c97a3782a0639d87b460741e8ba5d076dMike Stump /// EmitAggregateCopy - Emit an aggrate copy. 42527fe2e6c97a3782a0639d87b460741e8ba5d076dMike Stump /// 42627fe2e6c97a3782a0639d87b460741e8ba5d076dMike Stump /// \param isVolatile - True iff either the source or the destination is 42727fe2e6c97a3782a0639d87b460741e8ba5d076dMike Stump /// volatile. 4287482d12c345c6391f8956850545e2d4aa7701ce6Daniel Dunbar void EmitAggregateCopy(llvm::Value *DestPtr, llvm::Value *SrcPtr, 42927fe2e6c97a3782a0639d87b460741e8ba5d076dMike Stump QualType EltTy, bool isVolatile=false); 4307482d12c345c6391f8956850545e2d4aa7701ce6Daniel Dunbar 4317482d12c345c6391f8956850545e2d4aa7701ce6Daniel Dunbar void EmitAggregateClear(llvm::Value *DestPtr, QualType Ty); 4327482d12c345c6391f8956850545e2d4aa7701ce6Daniel Dunbar 43351b09f2c528c8460b5465c676173324e44176d62Devang Patel /// StartBlock - Start new block named N. If insert block is a dummy block 43451b09f2c528c8460b5465c676173324e44176d62Devang Patel /// then reuse it. 43551b09f2c528c8460b5465c676173324e44176d62Devang Patel void StartBlock(const char *N); 43651b09f2c528c8460b5465c676173324e44176d62Devang Patel 43788a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel /// getCGRecordLayout - Return record layout info. 43888a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel const CGRecordLayout *getCGRecordLayout(CodeGenTypes &CGT, QualType RTy); 439813733577d33ec56479667b49e1bff42dc6bba90Lauro Ramos Venancio 440813733577d33ec56479667b49e1bff42dc6bba90Lauro Ramos Venancio /// GetAddrOfStaticLocalVar - Return the address of a static local variable. 441248a753f6b670692523c99afaeb8fe98f7ae3ca7Steve Naroff llvm::Constant *GetAddrOfStaticLocalVar(const VarDecl *BVD); 4424f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman 443dde0a94120915fa925d1ffcdb997c7b44dc9fa21Anders Carlsson /// GetAddrOfLocalVar - Return the address of a local variable. 444dde0a94120915fa925d1ffcdb997c7b44dc9fa21Anders Carlsson llvm::Value *GetAddrOfLocalVar(const VarDecl *VD); 4450dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 4464f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman /// getAccessedFieldNo - Given an encoded value and a result number, return 4474f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman /// the input field number being accessed. 4484f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman static unsigned getAccessedFieldNo(unsigned Idx, const llvm::Constant *Elts); 4494f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman 4500ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar unsigned GetIDForAddrOfLabel(const LabelStmt *L); 4510ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar 4520dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitMemSetToZero - Generate code to memset a value of the given type to 0. 4533d8400d9a61aa4b63ff35e5cede405b32a41425eAnders Carlsson void EmitMemSetToZero(llvm::Value *DestPtr, QualType Ty); 454ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson 455ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson // EmitVAArg - Generate code to get an argument from the passed in pointer 456ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson // and update it accordingly. The return value is a pointer to the argument. 457ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson // FIXME: We should be able to get rid of this method and use the va_arg 4580dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // instruction in LLVM instead once it works well enough. 459ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson llvm::Value *EmitVAArg(llvm::Value *VAListAddr, QualType Ty); 460f666b7780d04186521adcaedb0e15dfa4d5e6933Anders Carlsson 46160d35413662ebdcd1d31e34a8a7c665eb6977f1eAnders Carlsson // EmitVLASize - Generate code for any VLA size expressions that might occur 46260d35413662ebdcd1d31e34a8a7c665eb6977f1eAnders Carlsson // in a variably modified type. If Ty is a VLA, will return the value that 46360d35413662ebdcd1d31e34a8a7c665eb6977f1eAnders Carlsson // corresponds to the size in bytes of the VLA type. Will return 0 otherwise. 46460d35413662ebdcd1d31e34a8a7c665eb6977f1eAnders Carlsson llvm::Value *EmitVLASize(QualType Ty); 4650dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 466dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson // GetVLASize - Returns an LLVM value that corresponds to the size in bytes 467dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson // of a variable length array type. 468dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson llvm::Value *GetVLASize(const VariableArrayType *); 469dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson 4705f4307b7ba164b03c853c8d3eb4674d33f8967a6Anders Carlsson /// LoadCXXThis - Load the value of 'this'. This function is only valid while 4715f4307b7ba164b03c853c8d3eb4674d33f8967a6Anders Carlsson /// generating code for an C++ member function. 4725f4307b7ba164b03c853c8d3eb4674d33f8967a6Anders Carlsson llvm::Value *LoadCXXThis(); 4735f4307b7ba164b03c853c8d3eb4674d33f8967a6Anders Carlsson 474b14095aa98c6fedd3625920c4ce834bcaf24d9f7Anders Carlsson void EmitCXXConstructorCall(const CXXConstructorDecl *D, CXXCtorType Type, 475b14095aa98c6fedd3625920c4ce834bcaf24d9f7Anders Carlsson llvm::Value *This, 476b14095aa98c6fedd3625920c4ce834bcaf24d9f7Anders Carlsson CallExpr::const_arg_iterator ArgBeg, 477b14095aa98c6fedd3625920c4ce834bcaf24d9f7Anders Carlsson CallExpr::const_arg_iterator ArgEnd); 478b14095aa98c6fedd3625920c4ce834bcaf24d9f7Anders Carlsson 4795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 4805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Declaration Emission 4815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 4820dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 4835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitDecl(const Decl &D); 484248a753f6b670692523c99afaeb8fe98f7ae3ca7Steve Naroff void EmitBlockVarDecl(const VarDecl &D); 485248a753f6b670692523c99afaeb8fe98f7ae3ca7Steve Naroff void EmitLocalBlockVarDecl(const VarDecl &D); 486248a753f6b670692523c99afaeb8fe98f7ae3ca7Steve Naroff void EmitStaticBlockVarDecl(const VarDecl &D); 487b7ec246872b412f0e7bb9e93eacfd78cfa6adfb3Daniel Dunbar 488b7ec246872b412f0e7bb9e93eacfd78cfa6adfb3Daniel Dunbar /// EmitParmDecl - Emit a ParmVarDecl or an ImplicitParamDecl. 489b7ec246872b412f0e7bb9e93eacfd78cfa6adfb3Daniel Dunbar void EmitParmDecl(const VarDecl &D, llvm::Value *Arg); 4900dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 4915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 4925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Statement Emission 4935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 4945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4950dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitStopPoint - Emit a debug stoppoint if we are emitting debug info. 4960912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar void EmitStopPoint(const Stmt *S); 4970912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar 4980dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitStmt - Emit the code for the statement \arg S. It is legal to call 4990dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// this function even if there is no current insertion point. 5000dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// 5010dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// This function may clear the current insertion point; callers should use 5020dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EnsureInsertPoint if they wish to subsequently generate code without first 5030dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// calling EmitBlock, EmitBranch, or EmitStmt. 5045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitStmt(const Stmt *S); 505a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 5060912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar /// EmitSimpleStmt - Try to emit a "simple" statement which does not 5070dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// necessarily require an insertion point or debug information; typically 5080dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// because the statement amounts to a jump or a container of other 5090dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// statements. 5100912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar /// 5110912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar /// \return True if the statement was handled. 5120912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar bool EmitSimpleStmt(const Stmt *S); 5130912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar 5149b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner RValue EmitCompoundStmt(const CompoundStmt &S, bool GetLast = false, 5159b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner llvm::Value *AggLoc = 0, bool isAggVol = false); 516a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 5170dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitLabel - Emit the block for the given label. It is legal to call this 5180dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// function even if there is no current insertion point. 51991d723da7b68be5245c3ac58aa2a36d04658cfb8Chris Lattner void EmitLabel(const LabelStmt &S); // helper for EmitLabelStmt. 520a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 5215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitLabelStmt(const LabelStmt &S); 5225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitGotoStmt(const GotoStmt &S); 5230ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar void EmitIndirectGotoStmt(const IndirectGotoStmt &S); 5245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitIfStmt(const IfStmt &S); 5255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitWhileStmt(const WhileStmt &S); 5265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitDoStmt(const DoStmt &S); 5275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitForStmt(const ForStmt &S); 5285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitReturnStmt(const ReturnStmt &S); 5295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitDeclStmt(const DeclStmt &S); 5300912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar void EmitBreakStmt(const BreakStmt &S); 5310912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar void EmitContinueStmt(const ContinueStmt &S); 53251b09f2c528c8460b5465c676173324e44176d62Devang Patel void EmitSwitchStmt(const SwitchStmt &S); 53351b09f2c528c8460b5465c676173324e44176d62Devang Patel void EmitDefaultStmt(const DefaultStmt &S); 53451b09f2c528c8460b5465c676173324e44176d62Devang Patel void EmitCaseStmt(const CaseStmt &S); 535c049e4f406a7f7179eba98659044a32508e53289Devang Patel void EmitCaseStmtRange(const CaseStmt &S); 536fb1aeb804c08d5288a923fb278161783e6abdc66Anders Carlsson void EmitAsmStmt(const AsmStmt &S); 5370dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 5383d8400d9a61aa4b63ff35e5cede405b32a41425eAnders Carlsson void EmitObjCForCollectionStmt(const ObjCForCollectionStmt &S); 53964d5d6c5903157c521af496479d06dc26032d718Anders Carlsson void EmitObjCAtTryStmt(const ObjCAtTryStmt &S); 54064d5d6c5903157c521af496479d06dc26032d718Anders Carlsson void EmitObjCAtThrowStmt(const ObjCAtThrowStmt &S); 54110cac6f7115b59a466bb8d2d51cdddeb38aadc37Chris Lattner void EmitObjCAtSynchronizedStmt(const ObjCAtSynchronizedStmt &S); 5420dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 5435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 5445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // LValue Expression Emission 5455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 5465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 54713e81737a433b23f8c662d10d1d57356122a8caaDaniel Dunbar /// GetUndefRValue - Get an appropriate 'undef' rvalue for the given type. 54813e81737a433b23f8c662d10d1d57356122a8caaDaniel Dunbar RValue GetUndefRValue(QualType Ty); 54913e81737a433b23f8c662d10d1d57356122a8caaDaniel Dunbar 550ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar /// EmitUnsupportedRValue - Emit a dummy r-value using the type of E 551ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar /// and issue an ErrorUnsupported style diagnostic (using the 552ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar /// provided Name). 553ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar RValue EmitUnsupportedRValue(const Expr *E, 554ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar const char *Name); 555ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar 5560dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitUnsupportedLValue - Emit a dummy l-value using the type of E and issue 5570dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// an ErrorUnsupported style diagnostic (using the provided Name). 5586ba82a4a4b295e54cf192c3e98b28f39990c6194Daniel Dunbar LValue EmitUnsupportedLValue(const Expr *E, 5596ba82a4a4b295e54cf192c3e98b28f39990c6194Daniel Dunbar const char *Name); 5606ba82a4a4b295e54cf192c3e98b28f39990c6194Daniel Dunbar 5615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EmitLValue - Emit code to compute a designator that specifies the location 5625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// of the expression. 5635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 5645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// This can return one of two things: a simple address or a bitfield 5655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// reference. In either case, the LLVM Value* in the LValue structure is 5665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// guaranteed to be an LLVM pointer type. 5675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 5685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// If this returns a bitfield reference, nothing about the pointee type of 5695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// the LLVM value is known: For example, it may not be a pointer to an 5705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// integer. 5715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 5725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// If this returns a normal address, and if the lvalue's C type is fixed 5735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// size, this method guarantees that the returned pointer type will point to 5745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// an LLVM type of the same size of the lvalue's type. If the lvalue has a 5755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// variable length type, this is not possible. 5765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 5775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitLValue(const Expr *E); 5780dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 5799d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// EmitLoadOfScalar - Load a scalar value from an address, taking 5809d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// care to appropriately convert from the memory representation to 5819d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// the LLVM value representation. 58209429b962811f2c0a7a81a1b0a89f96f5878b20cMike Stump llvm::Value *EmitLoadOfScalar(llvm::Value *Addr, bool Volatile, 5839d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar QualType Ty); 5849d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar 5859d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// EmitStoreOfScalar - Store a scalar value to an address, taking 5869d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// care to appropriately convert from the memory representation to 5879d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// the LLVM value representation. 58809429b962811f2c0a7a81a1b0a89f96f5878b20cMike Stump void EmitStoreOfScalar(llvm::Value *Value, llvm::Value *Addr, 589b4aa4664ec851573624a7a29c6c750fc1d5cc268Anders Carlsson bool Volatile, QualType Ty); 5909d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar 5915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EmitLoadOfLValue - Given an expression that represents a value lvalue, 5925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// this method emits the address of the lvalue, then loads the result as an 5935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// rvalue, returning the rvalue. 5945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer RValue EmitLoadOfLValue(LValue V, QualType LVType); 595213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman RValue EmitLoadOfExtVectorElementLValue(LValue V, QualType LVType); 5963b8c22d93da1432b2d4cea779d14912645c93866Lauro Ramos Venancio RValue EmitLoadOfBitfieldLValue(LValue LV, QualType ExprType); 59785c59edda02df48fae8dc85049743319bc6e7e89Daniel Dunbar RValue EmitLoadOfPropertyRefLValue(LValue LV, QualType ExprType); 59843f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian RValue EmitLoadOfKVCRefLValue(LValue LV, QualType ExprType); 5995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6000dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 6015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EmitStoreThroughLValue - Store the specified rvalue into the specified 6025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// lvalue, where both are guaranteed to the have the same type, and that type 6035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// is 'Ty'. 6045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitStoreThroughLValue(RValue Src, LValue Dst, QualType Ty); 605213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman void EmitStoreThroughExtVectorComponentLValue(RValue Src, LValue Dst, 606213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman QualType Ty); 60785c59edda02df48fae8dc85049743319bc6e7e89Daniel Dunbar void EmitStoreThroughPropertyRefLValue(RValue Src, LValue Dst, QualType Ty); 60843f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian void EmitStoreThroughKVCRefLValue(RValue Src, LValue Dst, QualType Ty); 609ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar 6100dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitStoreThroughLValue - Store Src into Dst with same constraints as 6110dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitStoreThroughLValue. 612ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar /// 6130dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// \param Result [out] - If non-null, this will be set to a Value* for the 6140dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// bit-field contents after the store, appropriate for use as the result of 6150dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// an assignment to the bit-field. 616ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar void EmitStoreThroughBitfieldLValue(RValue Src, LValue Dst, QualType Ty, 617ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar llvm::Value **Result=0); 6180dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 61922c940ee588a420cd2e6c8f68be2ac3cc80061ffChristopher Lamb // Note: only availabe for agg return types 62080e62c29fe21cd06c93eba6e72b7e32dca06fcf9Daniel Dunbar LValue EmitBinaryOperatorLValue(const BinaryOperator *E); 6215b5c9ef865607e179413462dcd71bcebb5b7daaeDaniel Dunbar // Note: only available for agg return types 62222c940ee588a420cd2e6c8f68be2ac3cc80061ffChristopher Lamb LValue EmitCallExprLValue(const CallExpr *E); 6235b5c9ef865607e179413462dcd71bcebb5b7daaeDaniel Dunbar // Note: only available for agg return types 6245b5c9ef865607e179413462dcd71bcebb5b7daaeDaniel Dunbar LValue EmitVAArgExprLValue(const VAArgExpr *E); 6255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitDeclRefLValue(const DeclRefExpr *E); 6265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitStringLiteralLValue(const StringLiteral *E); 627eaf2bb89eb2aad3b80673de30febe52df43c10ecChris Lattner LValue EmitObjCEncodeExprLValue(const ObjCEncodeExpr *E); 628662b71ee82339c67f2c3689196e716c6560cf925Daniel Dunbar LValue EmitPredefinedFunctionName(unsigned Type); 629d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner LValue EmitPredefinedLValue(const PredefinedExpr *E); 6305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitUnaryOpLValue(const UnaryOperator *E); 6315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitArraySubscriptExpr(const ArraySubscriptExpr *E); 632213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman LValue EmitExtVectorElementExpr(const ExtVectorElementExpr *E); 633b84a06e68ffd71da22e3c75b6e4bbdba37816413Devang Patel LValue EmitMemberExpr(const MemberExpr *E); 63406e863f2902b8ba55b056308875c19f7ba3dab25Eli Friedman LValue EmitCompoundLiteralLValue(const CompoundLiteralExpr *E); 6359034558f2f9ac1dc6bd2e74f4481ca62fce28718Daniel Dunbar LValue EmitConditionalOperator(const ConditionalOperator *E); 63675dfedaf702822c9e51a4f3c5d3ecf2d2ad99272Chris Lattner LValue EmitCastLValue(const CastExpr *E); 637472778eb4fce241721c563280886e98389bc7219Eli Friedman 6382a03192a02dbf4fdff438d1e658356bde871aba4Daniel Dunbar llvm::Value *EmitIvarOffset(const ObjCInterfaceDecl *Interface, 63929e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar const ObjCIvarDecl *Ivar); 640472778eb4fce241721c563280886e98389bc7219Eli Friedman LValue EmitLValueForField(llvm::Value* Base, FieldDecl* Field, 6411e692ace08959399794363e77499b73da5494af9Eli Friedman bool isUnion, unsigned CVRQualifiers); 64245012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian LValue EmitLValueForIvar(QualType ObjectTy, 64345012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian llvm::Value* Base, const ObjCIvarDecl *Ivar, 64429e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar unsigned CVRQualifiers); 64529e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar 646fd64bb635dc221baa19f81d5d2a084f7eb269f7fFariborz Jahanian LValue EmitLValueForBitfield(llvm::Value* Base, FieldDecl* Field, 647598d3f61b6ca854e9d3c2f3359e24468502a61aaFariborz Jahanian unsigned CVRQualifiers); 648fd64bb635dc221baa19f81d5d2a084f7eb269f7fFariborz Jahanian 649a99038c0757a836c6faeeddaa5dfd249b32f6e9eMike Stump LValue EmitBlockDeclRefLValue(const BlockDeclRefExpr *E); 650a99038c0757a836c6faeeddaa5dfd249b32f6e9eMike Stump 651e3a09e6ad09f8d1387ecaa008aaf85527909da0aArgyrios Kyrtzidis LValue EmitCXXConditionDeclLValue(const CXXConditionDeclExpr *E); 652e3a09e6ad09f8d1387ecaa008aaf85527909da0aArgyrios Kyrtzidis 6530a04d77bde7e3a661c2b41b60630d125d09ed6efDaniel Dunbar LValue EmitObjCMessageExprLValue(const ObjCMessageExpr *E); 654391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner LValue EmitObjCIvarRefLValue(const ObjCIvarRefExpr *E); 65585c59edda02df48fae8dc85049743319bc6e7e89Daniel Dunbar LValue EmitObjCPropertyRefLValue(const ObjCPropertyRefExpr *E); 65643f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian LValue EmitObjCKVCRefLValue(const ObjCKVCRefExpr *E); 657654599454c8e6cc83b1b9b3af43c49c2f66a26cbChris Lattner LValue EmitObjCSuperExprLValue(const ObjCSuperExpr *E); 658654599454c8e6cc83b1b9b3af43c49c2f66a26cbChris Lattner LValue EmitStmtExprLValue(const StmtExpr *E); 6590a04d77bde7e3a661c2b41b60630d125d09ed6efDaniel Dunbar 6605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 661883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner // Scalar Expression Emission 6625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 6635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6640dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitCall - Generate a call of the given function, expecting the given 6650dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// result type, and using the given argument list which specifies both the 6660dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// LLVM arguments and the types they were derived from. 667c0ef9f59937c3971c48b6fed37cf5bd8985c024bDaniel Dunbar /// 668c0ef9f59937c3971c48b6fed37cf5bd8985c024bDaniel Dunbar /// \param TargetDecl - If given, the decl of the function in a 669c0ef9f59937c3971c48b6fed37cf5bd8985c024bDaniel Dunbar /// direct call; used to set attributes on the call (noreturn, 670c0ef9f59937c3971c48b6fed37cf5bd8985c024bDaniel Dunbar /// etc.). 67188b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar RValue EmitCall(const CGFunctionInfo &FnInfo, 67288b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar llvm::Value *Callee, 673c0ef9f59937c3971c48b6fed37cf5bd8985c024bDaniel Dunbar const CallArgList &Args, 674c0ef9f59937c3971c48b6fed37cf5bd8985c024bDaniel Dunbar const Decl *TargetDecl = 0); 67519cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar 6765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer RValue EmitCallExpr(const CallExpr *E); 677b9de2c55b2a33776e2bee8ee57df7599b374c8a5Anders Carlsson 678b9de2c55b2a33776e2bee8ee57df7599b374c8a5Anders Carlsson RValue EmitCXXMemberCall(const CXXMethodDecl *MD, 679b9de2c55b2a33776e2bee8ee57df7599b374c8a5Anders Carlsson llvm::Value *Callee, 680b9de2c55b2a33776e2bee8ee57df7599b374c8a5Anders Carlsson llvm::Value *This, 681b9de2c55b2a33776e2bee8ee57df7599b374c8a5Anders Carlsson CallExpr::const_arg_iterator ArgBeg, 682b9de2c55b2a33776e2bee8ee57df7599b374c8a5Anders Carlsson CallExpr::const_arg_iterator ArgEnd); 683b9de2c55b2a33776e2bee8ee57df7599b374c8a5Anders Carlsson 684774e7c6881ee6cb970cd42239d700dce87ed402aAnders Carlsson RValue EmitCXXMemberCallExpr(const CXXMemberCallExpr *E); 6855549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek 6865193b8a3e57c4f696161aeddfe8227c294c0a7feEli Friedman RValue EmitCallExpr(llvm::Value *Callee, QualType FnType, 6875549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek CallExpr::const_arg_iterator ArgBeg, 688c0ef9f59937c3971c48b6fed37cf5bd8985c024bDaniel Dunbar CallExpr::const_arg_iterator ArgEnd, 689c0ef9f59937c3971c48b6fed37cf5bd8985c024bDaniel Dunbar const Decl *TargetDecl = 0); 6900dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 691ef2abfee3ea16ec74942dc09e9e425f46aeb2582Daniel Dunbar RValue EmitBuiltinExpr(const FunctionDecl *FD, 692ef2abfee3ea16ec74942dc09e9e425f46aeb2582Daniel Dunbar unsigned BuiltinID, const CallExpr *E); 6935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 694acfde805d644bc71dfeac54ddbc9f12cdae0bb02Anders Carlsson RValue EmitBlockCallExpr(const CallExpr *E); 69509429b962811f2c0a7a81a1b0a89f96f5878b20cMike Stump 6960dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitTargetBuiltinExpr - Emit the given builtin call. Returns 0 if the call 6970dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// is unhandled by the current target. 698f02e9ddf5efc75917af712b3c7f909581205f0a5Daniel Dunbar llvm::Value *EmitTargetBuiltinExpr(unsigned BuiltinID, const CallExpr *E); 699f02e9ddf5efc75917af712b3c7f909581205f0a5Daniel Dunbar 700564f1de67d7ba43646b8740db86d6269e3dfbe0bAnders Carlsson llvm::Value *EmitX86BuiltinExpr(unsigned BuiltinID, const CallExpr *E); 701564f1de67d7ba43646b8740db86d6269e3dfbe0bAnders Carlsson llvm::Value *EmitPPCBuiltinExpr(unsigned BuiltinID, const CallExpr *E); 7020dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 703cc23acae84c6d5c37b4805edbcd95ee5d821c400Anders Carlsson llvm::Value *EmitShuffleVector(llvm::Value* V1, llvm::Value *V2, ...); 7044119d1aeca8016654d381ce079864058d1709571Nate Begeman llvm::Value *EmitVector(llvm::Value * const *Vals, unsigned NumVals, 7054119d1aeca8016654d381ce079864058d1709571Nate Begeman bool isSplat = false); 7060dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 707ed7c618f849e2541b1d0288c43154937652c5b15Daniel Dunbar llvm::Value *EmitObjCProtocolExpr(const ObjCProtocolExpr *E); 7087f02f721d48772e4eee4fccd8af4f800be1bbc1eChris Lattner llvm::Value *EmitObjCStringLiteral(const ObjCStringLiteral *E); 7098fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner llvm::Value *EmitObjCSelectorExpr(const ObjCSelectorExpr *E); 7108f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar RValue EmitObjCMessageExpr(const ObjCMessageExpr *E); 7115daf570d0ce027e18ed5f9d66e6b2a14a40b720dFariborz Jahanian RValue EmitObjCPropertyGet(const Expr *E); 712f469557743f77918d2ca8226e2ee2888998ffd4aFariborz Jahanian RValue EmitObjCSuperPropertyGet(const Expr *Exp, const Selector &S); 71343f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian void EmitObjCPropertySet(const Expr *E, RValue Src); 714f469557743f77918d2ca8226e2ee2888998ffd4aFariborz Jahanian void EmitObjCSuperPropertySet(const Expr *E, const Selector &S, RValue Src); 7158fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner 7168fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner 7174029ca7ae9d3ffd7738fe2ed8782bebc30f36fd6Anders Carlsson /// EmitReferenceBindingToExpr - Emits a reference binding to the passed in 7184029ca7ae9d3ffd7738fe2ed8782bebc30f36fd6Anders Carlsson /// expression. Will emit a temporary variable if E is not an LValue. 7194029ca7ae9d3ffd7738fe2ed8782bebc30f36fd6Anders Carlsson RValue EmitReferenceBindingToExpr(const Expr* E, QualType DestType); 7204029ca7ae9d3ffd7738fe2ed8782bebc30f36fd6Anders Carlsson 721883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner //===--------------------------------------------------------------------===// 722bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattner // Expression Emission 723883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner //===--------------------------------------------------------------------===// 724bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattner 725bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattner // Expressions are broken into three classes: scalar, complex, aggregate. 7260dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 7270dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitScalarExpr - Emit the computation of the specified expression of LLVM 7280dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// scalar type, returning the result. 7297f02f721d48772e4eee4fccd8af4f800be1bbc1eChris Lattner llvm::Value *EmitScalarExpr(const Expr *E); 7300dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 7313707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner /// EmitScalarConversion - Emit a conversion from the specified type to the 7323707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner /// specified destination type, both of which are LLVM scalar types. 7333707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner llvm::Value *EmitScalarConversion(llvm::Value *Src, QualType SrcTy, 7343707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner QualType DstTy); 7350dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 7364f1a7b380809b4ca19ad2daff61bc11cd1e979d8Chris Lattner /// EmitComplexToScalarConversion - Emit a conversion from the specified 7370dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// complex type to the specified destination type, where the destination type 7380dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// is an LLVM scalar type. 7394f1a7b380809b4ca19ad2daff61bc11cd1e979d8Chris Lattner llvm::Value *EmitComplexToScalarConversion(ComplexPairTy Src, QualType SrcTy, 7404f1a7b380809b4ca19ad2daff61bc11cd1e979d8Chris Lattner QualType DstTy); 7410dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 7420dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 743883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner /// EmitAggExpr - Emit the computation of the specified expression of 744883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner /// aggregate type. The result is computed into DestPtr. Note that if 745883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner /// DestPtr is null, the value of the aggregate expression is not needed. 74649d1cd5a09ed3df353371fd7f206674a85e0fb45Mike Stump void EmitAggExpr(const Expr *E, llvm::Value *DestPtr, bool VolatileDest, 74749d1cd5a09ed3df353371fd7f206674a85e0fb45Mike Stump bool IgnoreResult = false); 7480dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 749b6ef18a2b06d6760459e1756a61f79ff496cee19Chris Lattner /// EmitComplexExpr - Emit the computation of the specified expression of 75023b1cdb0b5e089468bb8475b8ec9287af67b4b59Chris Lattner /// complex type, returning the result. 75158dee10ed2eee34035f62d1c2d32b3639e9182f8Chris Lattner ComplexPairTy EmitComplexExpr(const Expr *E); 7520dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 75323b1cdb0b5e089468bb8475b8ec9287af67b4b59Chris Lattner /// EmitComplexExprIntoAddr - Emit the computation of the specified expression 75423b1cdb0b5e089468bb8475b8ec9287af67b4b59Chris Lattner /// of complex type, storing into the specified Value*. 755190dbe203c2e892ac40f1786035c6c9be3f44a4cChris Lattner void EmitComplexExprIntoAddr(const Expr *E, llvm::Value *DestAddr, 756190dbe203c2e892ac40f1786035c6c9be3f44a4cChris Lattner bool DestIsVolatile); 7577f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar 7587f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar /// StoreComplexToAddr - Store a complex number into the specified address. 7597f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar void StoreComplexToAddr(ComplexPairTy V, llvm::Value *DestAddr, 7607f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar bool DestIsVolatile); 7619b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// LoadComplexFromAddr - Load a complex number from the specified address. 7629b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner ComplexPairTy LoadComplexFromAddr(llvm::Value *SrcAddr, bool SrcIsVolatile); 7632621fd1d6d3c5eadcae246859f62738645df7540Chris Lattner 7640096acf421c4609ce7f43e8b05f8c5ca866d4611Daniel Dunbar /// CreateStaticBlockVarDecl - Create a zero-initialized LLVM global 7650096acf421c4609ce7f43e8b05f8c5ca866d4611Daniel Dunbar /// for a static block var decl. 7660096acf421c4609ce7f43e8b05f8c5ca866d4611Daniel Dunbar llvm::GlobalVariable * CreateStaticBlockVarDecl(const VarDecl &D, 7670096acf421c4609ce7f43e8b05f8c5ca866d4611Daniel Dunbar const char *Separator, 7680096acf421c4609ce7f43e8b05f8c5ca866d4611Daniel Dunbar llvm::GlobalValue::LinkageTypes 7690096acf421c4609ce7f43e8b05f8c5ca866d4611Daniel Dunbar Linkage); 7700096acf421c4609ce7f43e8b05f8c5ca866d4611Daniel Dunbar 7710096acf421c4609ce7f43e8b05f8c5ca866d4611Daniel Dunbar /// GenerateStaticCXXBlockVarDecl - Create the initializer for a C++ 7720096acf421c4609ce7f43e8b05f8c5ca866d4611Daniel Dunbar /// runtime initialized static block var decl. 7730096acf421c4609ce7f43e8b05f8c5ca866d4611Daniel Dunbar void GenerateStaticCXXBlockVarDeclInit(const VarDecl &D, 7740096acf421c4609ce7f43e8b05f8c5ca866d4611Daniel Dunbar llvm::GlobalVariable *GV); 775e1b29efab32d02e114046d33cca242a88585bf8aAnders Carlsson 77631ccf377f4a676eb6c205b47eef435de616d5e2dAnders Carlsson void EmitCXXConstructExpr(llvm::Value *Dest, const CXXConstructExpr *E); 777b14095aa98c6fedd3625920c4ce834bcaf24d9f7Anders Carlsson 7780ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar //===--------------------------------------------------------------------===// 7790ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar // Internal Helpers 7800ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar //===--------------------------------------------------------------------===// 7810dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 7820946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner /// ContainsLabel - Return true if the statement contains a label in it. If 7830946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner /// this statement is not executed normally, it not containing a label means 7840946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner /// that we can just remove the code. 7850946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner static bool ContainsLabel(const Stmt *S, bool IgnoreCaseStmts = false); 7860dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 7874bc0455d826e9634b7a68c0d06146edd633c9453Daniel Dunbar /// ConstantFoldsToSimpleInteger - If the specified expression does not fold 78831a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// to a constant, or if it does but contains a label, return 0. If it 78931a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// constant folds to 'true' and does not contain a label, return 1, if it 79031a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// constant folds to 'false' and does not contain a label, return -1. 79131a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner int ConstantFoldsToSimpleInteger(const Expr *Cond); 7920dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 79331a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// EmitBranchOnBoolExpr - Emit a branch on a boolean condition (e.g. for an 79431a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// if statement) to the specified blocks. Based on the condition, this might 79531a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// try to simplify the codegen of the conditional based on the branch. 7969bc47e29dce8f095be7a6d07dbb02a5a7a112949Chris Lattner void EmitBranchOnBoolExpr(const Expr *Cond, llvm::BasicBlock *TrueBlock, 7974bc0455d826e9634b7a68c0d06146edd633c9453Daniel Dunbar llvm::BasicBlock *FalseBlock); 79831a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattnerprivate: 7990dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 8000ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar /// EmitIndirectSwitches - Emit code for all of the switch 8010ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar /// instructions in IndirectSwitches. 8020ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar void EmitIndirectSwitches(); 8035627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar 80429e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar void EmitReturnOfRValue(RValue RV, QualType Ty); 80529e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar 8065627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// ExpandTypeFromArgs - Reconstruct a structure of type \arg Ty 8075627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// from function arguments into \arg Dst. See ABIArgInfo::Expand. 8085627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// 8095627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// \param AI - The first function argument of the expansion. 8105627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// \return The argument following the last expanded function 8115627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// argument. 8120dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump llvm::Function::arg_iterator 8135627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar ExpandTypeFromArgs(QualType Ty, LValue Dst, 8145627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar llvm::Function::arg_iterator AI); 8155627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar 8160dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// ExpandTypeToArgs - Expand an RValue \arg Src, with the LLVM type for \arg 8170dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// Ty, into individual arguments on the provided vector \arg Args. See 8180dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// ABIArgInfo::Expand. 8190dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump void ExpandTypeToArgs(QualType Ty, RValue Src, 8205627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar llvm::SmallVector<llvm::Value*, 16> &Args); 821c8c7b187adcd989e01a9fba1ebead6c2abd770c9Anders Carlsson 822b84e8a670ad1d00c0a34295c42ac700cdde04815Daniel Dunbar llvm::Value* EmitAsmInput(const AsmStmt &S, 823b84e8a670ad1d00c0a34295c42ac700cdde04815Daniel Dunbar const TargetInfo::ConstraintInfo &Info, 824c8c7b187adcd989e01a9fba1ebead6c2abd770c9Anders Carlsson const Expr *InputExpr, std::string &ConstraintStr); 8250dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 826c71c845fe77ee1f891d60232ec320912d88557eeAnders Carlsson /// EmitCleanupBlock - emits a single cleanup block. 827c71c845fe77ee1f891d60232ec320912d88557eeAnders Carlsson void EmitCleanupBlock(); 828c71c845fe77ee1f891d60232ec320912d88557eeAnders Carlsson 82987eaf17cc88516277e4389dfa15df93ecfdce559Anders Carlsson /// AddBranchFixup - adds a branch instruction to the list of fixups for the 83087eaf17cc88516277e4389dfa15df93ecfdce559Anders Carlsson /// current cleanup scope. 83187eaf17cc88516277e4389dfa15df93ecfdce559Anders Carlsson void AddBranchFixup(llvm::BranchInst *BI); 8320dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 8330139bb96494b4c4ba0824617d5d2495dc7e44c76Anders Carlsson /// EmitCallArg - Emit a single call argument. 8340139bb96494b4c4ba0824617d5d2495dc7e44c76Anders Carlsson RValue EmitCallArg(const Expr *E, QualType ArgType); 8350139bb96494b4c4ba0824617d5d2495dc7e44c76Anders Carlsson 8360139bb96494b4c4ba0824617d5d2495dc7e44c76Anders Carlsson /// EmitCallArgs - Emit call arguments for a function. 837af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson /// The CallArgTypeInfo parameter is used for iterating over the known 838af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson /// argument types of the function being called. 839af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson template<typename T> 840af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson void EmitCallArgs(CallArgList& Args, const T* CallArgTypeInfo, 8410139bb96494b4c4ba0824617d5d2495dc7e44c76Anders Carlsson CallExpr::const_arg_iterator ArgBeg, 842af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson CallExpr::const_arg_iterator ArgEnd) { 843af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson CallExpr::const_arg_iterator Arg = ArgBeg; 844af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson 845af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson // First, use the argument types that the type info knows about 846af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson if (CallArgTypeInfo) { 847af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson for (typename T::arg_type_iterator I = CallArgTypeInfo->arg_type_begin(), 848af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson E = CallArgTypeInfo->arg_type_end(); I != E; ++I, ++Arg) { 849af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson QualType ArgType = *I; 850af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson 851af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson assert(getContext().getCanonicalType(ArgType.getNonReferenceType()). 852af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson getTypePtr() == 853af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson getContext().getCanonicalType(Arg->getType()).getTypePtr() && 854af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson "type mismatch in call argument!"); 855af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson 856af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson Args.push_back(std::make_pair(EmitCallArg(*Arg, ArgType), 857af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson ArgType)); 858af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson } 859af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson 860af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson // Either we've emitted all the call args, or we have a call to a 861af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson // variadic function. 8621768fabfbae60202ba497b98dd9be9eb09bb2e20Eli Friedman assert((Arg == ArgEnd || CallArgTypeInfo->isVariadic()) && 863af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson "Extra arguments in non-variadic function!"); 864af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson 865af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson } 866af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson 867af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson // If we still have any arguments, emit them using the type of the argument. 868af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson for (; Arg != ArgEnd; ++Arg) { 869af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson QualType ArgType = Arg->getType(); 870af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson Args.push_back(std::make_pair(EmitCallArg(*Arg, ArgType), 871af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson ArgType)); 872af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson } 873af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson } 8745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 875af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson 876af23f69aa6247e6bd20a66b2e16babb91f192535Anders Carlsson 8775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace CodeGen 8785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace clang 8795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#endif 881