CodeGenFunction.h revision e4b6d342c29d5cb9d311756100df1603810fa892
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" 185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "llvm/ADT/DenseMap.h" 19da13870e99fe33934b2122f06528a5063f78ae4cChris Lattner#include "llvm/ADT/SmallVector.h" 20c8c7b187adcd989e01a9fba1ebead6c2abd770c9Anders Carlsson#include "clang/Basic/TargetInfo.h" 215549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek#include "clang/AST/Expr.h" 22e3a09e6ad09f8d1387ecaa008aaf85527909da0aArgyrios Kyrtzidis#include "clang/AST/ExprCXX.h" 235549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek#include "clang/AST/ExprObjC.h" 245549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek 255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include <vector> 260ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar#include <map> 275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2845d196b8387dcefc4df26cda114fa34c6528e928Daniel Dunbar#include "CGBuilder.h" 290dbe227feccf6a8dbadfff8ca3f80416b7bf2f28Daniel Dunbar#include "CGCall.h" 308f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar#include "CGValue.h" 318f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar 325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace llvm { 33c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class BasicBlock; 345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class Module; 35898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar class SwitchInst; 36ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar class Value; 375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace clang { 405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class ASTContext; 415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class Decl; 42c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class EnumConstantDecl; 435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class FunctionDecl; 44c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class FunctionTypeProto; 45c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class LabelStmt; 46679a502d462ef819e6175b58e255ca3f3391e7cfFariborz Jahanian class ObjCContainerDecl; 4729e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar class ObjCInterfaceDecl; 4829e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar class ObjCIvarDecl; 49391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner class ObjCMethodDecl; 50fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian class ObjCImplementationDecl; 51af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar class ObjCPropertyImplDecl; 525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class TargetInfo; 53c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class VarDecl; 545549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek 555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace CodeGen { 565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class CodeGenModule; 57b84a06e68ffd71da22e3c75b6e4bbdba37816413Devang Patel class CodeGenTypes; 58bb36d331f439f49859efcfb4435c61762fbba6f9Daniel Dunbar class CGFunctionInfo; 590dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump class CGRecordLayout; 600dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// CodeGenFunction - This class organizes the per-function state that is used 625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// while generating LLVM code. 635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CodeGenFunction { 64bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattnerpublic: 655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CodeGenModule &CGM; // Per-module state. 665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer TargetInfo &Target; 670dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 6858dee10ed2eee34035f62d1c2d32b3639e9182f8Chris Lattner typedef std::pair<llvm::Value *, llvm::Value *> ComplexPairTy; 6945d196b8387dcefc4df26cda114fa34c6528e928Daniel Dunbar CGBuilderTy Builder; 700dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 71c8aa5f1f264fb230c38182adab944232bb160c2bChris Lattner // Holds the Decl for the current function or method 724111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner const Decl *CurFuncDecl; 7388b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar const CGFunctionInfo *CurFnInfo; 74391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner QualType FnRetTy; 755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::Function *CurFn; 765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 775ca2084cf9b529563209429857f01fdae9dcdfa5Daniel Dunbar /// ReturnBlock - Unified return block. 785ca2084cf9b529563209429857f01fdae9dcdfa5Daniel Dunbar llvm::BasicBlock *ReturnBlock; 790dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// ReturnValue - The temporary alloca to hold the return value. This is null 800dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// iff the function has no return value. 815ca2084cf9b529563209429857f01fdae9dcdfa5Daniel Dunbar llvm::Instruction *ReturnValue; 820dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// AllocaInsertPoint - This is an instruction in the entry block before which 845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// we prefer to insert allocas. 855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::Instruction *AllocaInsertPt; 860ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar 875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const llvm::Type *LLVMIntTy; 887b66000bdfc2684351fb03208e672f23012ed569Hartmut Kaiser uint32_t LLVMPointerWidth; 8918ccc7776ad6288c5f630dc7967fb99d099c9cd9Daniel Dunbar 9018ccc7776ad6288c5f630dc7967fb99d099c9cd9Daniel Dunbarpublic: 910dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // FIXME: The following should be private once EH code is moved out of NeXT 920dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // runtime. 9318ccc7776ad6288c5f630dc7967fb99d099c9cd9Daniel Dunbar 940dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // ObjCEHStack - This keeps track of which object to rethrow from inside 950dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // @catch blocks and which @finally block exits from an EH scope should be 960dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // chained through. 9718ccc7776ad6288c5f630dc7967fb99d099c9cd9Daniel Dunbar struct ObjCEHEntry { 98190d00e1396214c77539c7095756b9ea38160463Anders Carlsson ObjCEHEntry(llvm::BasicBlock *fb, llvm::SwitchInst *fs, llvm::Value *dc) 990dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump : FinallyBlock(fb), FinallySwitch(fs), 100273558fbd891a0872e620e0d3d109b92c1160d72Anders Carlsson DestCode(dc) {} 10118ccc7776ad6288c5f630dc7967fb99d099c9cd9Daniel Dunbar 102898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar /// Entry point to the finally block. 1030dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump llvm::BasicBlock *FinallyBlock; 104898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar 1050dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// Switch instruction which runs at the end of the finally block to forward 1060dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// jumps through the finally block. 1070dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump llvm::SwitchInst *FinallySwitch; 108898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar 1090dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// Variable holding the code for the destination of a jump through the 1100dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// @finally block. 111898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar llvm::Value *DestCode; 11218ccc7776ad6288c5f630dc7967fb99d099c9cd9Daniel Dunbar }; 113898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar 1140dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// ObjCEHValueStack - Stack of exception objects being handled, during IR 1150dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// generation for a @catch block. 116273558fbd891a0872e620e0d3d109b92c1160d72Anders Carlsson llvm::SmallVector<llvm::Value*, 8> ObjCEHValueStack; 1170dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 118898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar typedef llvm::SmallVector<ObjCEHEntry*, 8> ObjCEHStackType; 119898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar ObjCEHStackType ObjCEHStack; 120898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar 1210dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitJumpThroughFinally - Emit a branch from the current insert point 1220dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// through the finally handling code for \arg Entry and then on to \arg 1230dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// Dest. It is legal to call this function even if there is no current 1240dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// insertion point. 125898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar /// 1260dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// \param ExecuteTryExit - When true, the try_exit runtime function should be 1270dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// called prior to executing the finally code. 12848de1012a2d8525362b417efce6fbfdf1c2b36e1Anders Carlsson void EmitJumpThroughFinally(ObjCEHEntry *Entry, llvm::BasicBlock *Dest); 1290dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 13048de1012a2d8525362b417efce6fbfdf1c2b36e1Anders Carlsson void EmitJumpThroughFinally(llvm::BasicBlock *Dest); 1315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1326fc559136b8ef98bfb824a0fd49df385405f2879Anders Carlsson /// PushCleanupBlock - Push a new cleanup entry on the stack and set the 1336fc559136b8ef98bfb824a0fd49df385405f2879Anders Carlsson /// passed in block as the cleanup block. 1346fc559136b8ef98bfb824a0fd49df385405f2879Anders Carlsson void PushCleanupBlock(llvm::BasicBlock *CleanupBlock); 135bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson 1360dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// CleanupBlockInfo - A struct representing a popped cleanup block. 137bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson struct CleanupBlockInfo { 138bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson /// CleanupBlock - the cleanup block 139bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson llvm::BasicBlock *CleanupBlock; 1400dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1410dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// SwitchBlock - the block (if any) containing the switch instruction used 1420dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// for jumping to the final destination. 143bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson llvm::BasicBlock *SwitchBlock; 1440dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 145bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson /// EndBlock - the default destination for the switch instruction. 146bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson llvm::BasicBlock *EndBlock; 1470dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1480dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump CleanupBlockInfo(llvm::BasicBlock *cb, llvm::BasicBlock *sb, 149bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson llvm::BasicBlock *eb) 150bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson : CleanupBlock(cb), SwitchBlock(sb), EndBlock(eb) {} 151bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson }; 152bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson 153bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson /// PopCleanupBlock - Will pop the cleanup entry on the stack, process all 1540dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// branch fixups and return a block info struct with the switch block and end 1550dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// block. 156bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson CleanupBlockInfo PopCleanupBlock(); 1570dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1580dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// CleanupScope - RAII object that will create a cleanup block and set the 1590dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// insert point to that block. When destructed, it sets the insert point to 1600dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// the previous block and pushes a new cleanup entry on the stack. 1610d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson class CleanupScope { 1620d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson CodeGenFunction& CGF; 1630d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson llvm::BasicBlock *CurBB; 1646fc559136b8ef98bfb824a0fd49df385405f2879Anders Carlsson llvm::BasicBlock *CleanupBB; 1650dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1660d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson public: 1670d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson CleanupScope(CodeGenFunction &cgf) 1680d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson : CGF(cgf), CurBB(CGF.Builder.GetInsertBlock()) { 1696fc559136b8ef98bfb824a0fd49df385405f2879Anders Carlsson CleanupBB = CGF.createBasicBlock("cleanup"); 1706fc559136b8ef98bfb824a0fd49df385405f2879Anders Carlsson CGF.Builder.SetInsertPoint(CleanupBB); 1710d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson } 1720dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1730d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson ~CleanupScope() { 1746fc559136b8ef98bfb824a0fd49df385405f2879Anders Carlsson CGF.PushCleanupBlock(CleanupBB); 1750d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson CGF.Builder.SetInsertPoint(CurBB); 1760d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson } 1770d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson }; 1780d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson 179c71c845fe77ee1f891d60232ec320912d88557eeAnders Carlsson /// EmitCleanupBlocks - Takes the old cleanup stack size and emits the cleanup 180c71c845fe77ee1f891d60232ec320912d88557eeAnders Carlsson /// blocks that have been added. 181c71c845fe77ee1f891d60232ec320912d88557eeAnders Carlsson void EmitCleanupBlocks(size_t OldCleanupStackSize); 182c71c845fe77ee1f891d60232ec320912d88557eeAnders Carlsson 18387eaf17cc88516277e4389dfa15df93ecfdce559Anders Carlsson /// EmitBranchThroughCleanup - Emit a branch from the current insert block 18487eaf17cc88516277e4389dfa15df93ecfdce559Anders Carlsson /// through the cleanup handling code (if any) and then on to \arg Dest. 18587eaf17cc88516277e4389dfa15df93ecfdce559Anders Carlsson /// 1860dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// FIXME: Maybe this should really be in EmitBranch? Don't we always want 18787eaf17cc88516277e4389dfa15df93ecfdce559Anders Carlsson /// this behavior for branches? 18887eaf17cc88516277e4389dfa15df93ecfdce559Anders Carlsson void EmitBranchThroughCleanup(llvm::BasicBlock *Dest); 1890dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1907f02f721d48772e4eee4fccd8af4f800be1bbc1eChris Lattnerprivate: 1910dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// LabelIDs - Track arbitrary ids assigned to labels for use in implementing 1920dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// the GCC address-of-label extension and indirect goto. IDs are assigned to 1930dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// labels inside getIDForAddrOfLabel(). 1940ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar std::map<const LabelStmt*, unsigned> LabelIDs; 1950ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar 1960ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar /// IndirectSwitches - Record the list of switches for indirect 1970dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// gotos. Emission of the actual switching code needs to be delayed until all 1980dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// AddrLabelExprs have been seen. 1990ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar std::vector<llvm::SwitchInst*> IndirectSwitches; 2000ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar 2010dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// LocalDeclMap - This keeps track of the LLVM allocas or globals for local C 2020dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// decls. 2035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::DenseMap<const Decl*, llvm::Value*> LocalDeclMap; 2045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// LabelMap - This keeps track of the LLVM basic block for each C label. 2065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::DenseMap<const LabelStmt*, llvm::BasicBlock*> LabelMap; 2070dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 2080dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // BreakContinueStack - This keeps track of where break and continue 209e4b6d342c29d5cb9d311756100df1603810fa892Anders Carlsson // statements should jump to. 210da13870e99fe33934b2122f06528a5063f78ae4cChris Lattner struct BreakContinue { 211e4b6d342c29d5cb9d311756100df1603810fa892Anders Carlsson BreakContinue(llvm::BasicBlock *bb, llvm::BasicBlock *cb) 212e4b6d342c29d5cb9d311756100df1603810fa892Anders Carlsson : BreakBlock(bb), ContinueBlock(cb) {} 2130dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 214da13870e99fe33934b2122f06528a5063f78ae4cChris Lattner llvm::BasicBlock *BreakBlock; 215da13870e99fe33934b2122f06528a5063f78ae4cChris Lattner llvm::BasicBlock *ContinueBlock; 2160dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump }; 217da13870e99fe33934b2122f06528a5063f78ae4cChris Lattner llvm::SmallVector<BreakContinue, 8> BreakContinueStack; 21818ccc7776ad6288c5f630dc7967fb99d099c9cd9Daniel Dunbar 2190dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// SwitchInsn - This is nearest current switch instruction. It is null if if 2200dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// current context is not in a switch. 22151b09f2c528c8460b5465c676173324e44176d62Devang Patel llvm::SwitchInst *SwitchInsn; 22251b09f2c528c8460b5465c676173324e44176d62Devang Patel 2230dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// CaseRangeBlock - This block holds if condition check for last case 22480fd5f96e6805ac43aab99faabd5b4c8b19551b7Devang Patel /// statement range in current switch instruction. 225c049e4f406a7f7179eba98659044a32508e53289Devang Patel llvm::BasicBlock *CaseRangeBlock; 226c049e4f406a7f7179eba98659044a32508e53289Devang Patel 2270dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // VLASizeMap - This keeps track of the associated size for each VLA type. 2280dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // FIXME: Maybe this could be a stack of maps that is pushed/popped as we 2290dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // enter/leave scopes. 230dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson llvm::DenseMap<const VariableArrayType*, llvm::Value*> VLASizeMap; 2310dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 2320dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// StackDepth - This keeps track of the stack depth. It is used to notice 2330dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// when control flow results in a change in stack depth and to arrange for 2340dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// the appropriate stack depth to be restored. VLAs are the primary means by 2350dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// which the stack depth changes. 23636a2ada69fdb457b0e46d0ef452c150b360d8888Mike Stump llvm::Value *StackDepth; 23736a2ada69fdb457b0e46d0ef452c150b360d8888Mike Stump 2384cc1a4703363ff940b6273aeef9d96a87edeb04bAnders Carlsson /// DidCallStackSave - Whether llvm.stacksave has been called. Used to avoid 2394cc1a4703363ff940b6273aeef9d96a87edeb04bAnders Carlsson /// calling llvm.stacksave for multiple VLAs in the same scope. 2404cc1a4703363ff940b6273aeef9d96a87edeb04bAnders Carlsson bool DidCallStackSave; 2414cc1a4703363ff940b6273aeef9d96a87edeb04bAnders Carlsson 24217d28a3e0b0efaba14534d0e6d6a307283d96b9fAnders Carlsson /// StackSaveValues - A stack(!) of stack save values. When a new scope is 2430dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// entered, a null is pushed on this stack. If a VLA is emitted, then the 2440dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// return value of llvm.stacksave() is stored at the top of this stack. 24517d28a3e0b0efaba14534d0e6d6a307283d96b9fAnders Carlsson llvm::SmallVector<llvm::Value*, 8> StackSaveValues; 2460dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 2470dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// StackDepthMap - A association of stack depth that will be in effect for 2480dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// each label. If control flow is transferred to a label, we have to restore 2490dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// the desired stack depth at the destination label, beore we transfer to 2500dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// that label. 251ec9771d57f94cc204491b3174e88069d08cdd684Mike Stump llvm::DenseMap<const void*, llvm::Value *> StackDepthMap; 252ec9771d57f94cc204491b3174e88069d08cdd684Mike Stump 2530dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// StackFixupAtLabel - Routine to adjust the stack to the depth the stack 2540dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// should be at by the time we transfer control flow to the label. This is 2550dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// called as we emit destinations for control flow, such as user labels for 2560dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// goto statements and compiler generated labels for break and continue 2570dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// processsing. We return true, if for any reason we can't generate code for 2580dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// the construct yet. See EmitStackUpdate for the paired routine to mark the 2590dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// branch. 260ec9771d57f94cc204491b3174e88069d08cdd684Mike Stump bool StackFixupAtLabel(const void *); 26136a2ada69fdb457b0e46d0ef452c150b360d8888Mike Stump 2620dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitStackUpdate - Routine to adjust the stack to the depth the stack 2630dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// should be at by the time we transfer control flow to the label. This is 2640dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// called just before emitting branches for user level goto processing, 2650dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// branhes for break or continue processing. The llvm::value overload is 2660dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// used when handling break and continue, as we know the stack depth 2670dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// directly. We return true, if for any reason we can't generate code for 2680dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// the construct yet. See StackFixupAtLabel for the paired routine to mark 2690dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// the destinations. 270ec9771d57f94cc204491b3174e88069d08cdd684Mike Stump bool EmitStackUpdate(llvm::Value *V); 271ec9771d57f94cc204491b3174e88069d08cdd684Mike Stump bool EmitStackUpdate(const void *S); 27236a2ada69fdb457b0e46d0ef452c150b360d8888Mike Stump 2736ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson struct CleanupEntry { 2746ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson /// CleanupBlock - The block of code that does the actual cleanup. 2756ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson llvm::BasicBlock *CleanupBlock; 2760dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 2776ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson /// Blocks - Basic blocks that were emitted in the current cleanup scope. 278bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson std::vector<llvm::BasicBlock *> Blocks; 2796ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson 2806ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson /// BranchFixups - Branch instructions to basic blocks that haven't been 2816ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson /// inserted into the current function yet. 282bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson std::vector<llvm::BranchInst *> BranchFixups; 2836ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson 2846ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson explicit CleanupEntry(llvm::BasicBlock *cb) 2856ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson : CleanupBlock(cb) {} 2860dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 287bd6fa3d032acd7eafc6c10827c41103df45beab7Anders Carlsson ~CleanupEntry() { 288bd6fa3d032acd7eafc6c10827c41103df45beab7Anders Carlsson assert(Blocks.empty() && "Did not empty blocks!"); 289bd6fa3d032acd7eafc6c10827c41103df45beab7Anders Carlsson assert(BranchFixups.empty() && "Did not empty branch fixups!"); 290bd6fa3d032acd7eafc6c10827c41103df45beab7Anders Carlsson } 2916ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson }; 2920dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 2936ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson /// CleanupEntries - Stack of cleanup entries. 2946ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson llvm::SmallVector<CleanupEntry, 8> CleanupEntries; 2956ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson 296bd6fa3d032acd7eafc6c10827c41103df45beab7Anders Carlsson typedef llvm::DenseMap<llvm::BasicBlock*, size_t> BlockScopeMap; 297bd6fa3d032acd7eafc6c10827c41103df45beab7Anders Carlsson 298bd6fa3d032acd7eafc6c10827c41103df45beab7Anders Carlsson /// BlockScopes - Map of which "cleanup scope" scope basic blocks have. 299bd6fa3d032acd7eafc6c10827c41103df45beab7Anders Carlsson BlockScopeMap BlockScopes; 3000dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 3015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 3025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CodeGenFunction(CodeGenModule &cgm); 3030dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 3045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ASTContext &getContext() const; 3055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 306391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner void GenerateObjCMethod(const ObjCMethodDecl *OMD); 307af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 3080dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump void StartObjCMethod(const ObjCMethodDecl *MD, 309679a502d462ef819e6175b58e255ca3f3391e7cfFariborz Jahanian const ObjCContainerDecl *CD); 310af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 3110dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// GenerateObjCGetter - Synthesize an Objective-C property getter function. 312fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian void GenerateObjCGetter(ObjCImplementationDecl *IMP, 313fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian const ObjCPropertyImplDecl *PID); 314af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 3150dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// GenerateObjCSetter - Synthesize an Objective-C property setter function 3160dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// for the given property. 317fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian void GenerateObjCSetter(ObjCImplementationDecl *IMP, 318fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian const ObjCPropertyImplDecl *PID); 319af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 320bd012ff1fa088181646a784f385b28867372d434Daniel Dunbar void GenerateCode(const FunctionDecl *FD, 321bd012ff1fa088181646a784f385b28867372d434Daniel Dunbar llvm::Function *Fn); 3220dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump void StartFunction(const Decl *D, QualType RetTy, 3237c086516f3cc9fba2733b1919973206c6ba4b171Daniel Dunbar llvm::Function *Fn, 3242284ac9ec80299fcdefae9a2787cf85105a0f203Daniel Dunbar const FunctionArgList &Args, 3252284ac9ec80299fcdefae9a2787cf85105a0f203Daniel Dunbar SourceLocation StartLoc); 326a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 3270dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitReturnBlock - Emit the unified return block, trying to avoid its 3280dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// emission when possible. 3291c1d6074f5a0296dd273362655b1b8f9057289e3Daniel Dunbar void EmitReturnBlock(); 3301c1d6074f5a0296dd273362655b1b8f9057289e3Daniel Dunbar 3310dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// FinishFunction - Complete IR generation of the current function. It is 3320dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// legal to call this function even if there is no current insertion point. 333af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar void FinishFunction(SourceLocation EndLoc=SourceLocation()); 33417b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar 3350dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitFunctionProlog - Emit the target specific LLVM code to load the 3360dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// arguments for the given function. This is also responsible for naming the 3370dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// LLVM function arguments. 33888b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar void EmitFunctionProlog(const CGFunctionInfo &FI, 33988b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar llvm::Function *Fn, 34017b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar const FunctionArgList &Args); 34117b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar 3420dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitFunctionEpilog - Emit the target specific LLVM code to return the 3430dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// given temporary. 34488b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar void EmitFunctionEpilog(const CGFunctionInfo &FI, llvm::Value *ReturnValue); 34517b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar 3468b1a343b6b360d63d5dc8a6beb841ce4414c1e00Daniel Dunbar const llvm::Type *ConvertTypeForMem(QualType T); 3475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const llvm::Type *ConvertType(QualType T); 348c8aa5f1f264fb230c38182adab944232bb160c2bChris Lattner 3490dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// LoadObjCSelf - Load the value of self. This function is only valid while 3500dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// generating code for an Objective-C method. 351c8aa5f1f264fb230c38182adab944232bb160c2bChris Lattner llvm::Value *LoadObjCSelf(); 3520dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 3530dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// TypeOfSelfObject - Return type of object that this self represents. 35445012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian QualType TypeOfSelfObject(); 3554111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner 3564111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner /// isObjCPointerType - Return true if the specificed AST type will map onto 3574111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner /// some Objective-C pointer type. 3584111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner static bool isObjCPointerType(QualType T); 3594111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner 3605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// hasAggregateLLVMType - Return true if the specified AST type will map into 3615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// an aggregate LLVM type or is void. 3625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool hasAggregateLLVMType(QualType T); 36355e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar 36455e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar /// createBasicBlock - Create an LLVM basic block. 3650dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump llvm::BasicBlock *createBasicBlock(const char *Name="", 36655e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar llvm::Function *Parent=0, 36755e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar llvm::BasicBlock *InsertBefore=0) { 36829ea6729155c759836be4b5453bee9ef8e1e97eeDaniel Dunbar#ifdef NDEBUG 36929ea6729155c759836be4b5453bee9ef8e1e97eeDaniel Dunbar return llvm::BasicBlock::Create("", Parent, InsertBefore); 37029ea6729155c759836be4b5453bee9ef8e1e97eeDaniel Dunbar#else 37155e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar return llvm::BasicBlock::Create(Name, Parent, InsertBefore); 37229ea6729155c759836be4b5453bee9ef8e1e97eeDaniel Dunbar#endif 37355e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar } 3740dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 3755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getBasicBlockForLabel - Return the LLVM basicblock that the specified 3765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// label maps to. 3775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::BasicBlock *getBasicBlockForLabel(const LabelStmt *S); 3780dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 3790dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitBlock - Emit the given block \arg BB and set it as the insert point, 3800dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// adding a fall-through branch from the current insert block if 3810dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// necessary. It is legal to call this function even if there is no current 3820dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// insertion point. 383a0c21a8faa79e88ac432d116eca58f7a7217195dDaniel Dunbar /// 3840dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// IsFinished - If true, indicates that the caller has finished emitting 3850dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// branches to the given block and does not expect to emit code into it. This 3860dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// means the block can be ignored if it is unreachable. 387a0c21a8faa79e88ac432d116eca58f7a7217195dDaniel Dunbar void EmitBlock(llvm::BasicBlock *BB, bool IsFinished=false); 388824e3bd76b2e32db2ec6e4d2d113413e518d1c63Daniel Dunbar 3890dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitBranch - Emit a branch to the specified basic block from the current 3900dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// insert block, taking care to avoid creation of branches from dummy 3910dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// blocks. It is legal to call this function even if there is no current 3920dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// insertion point. 3935e08ad3cc62ab94649959ae227a9a411a729bf49Daniel Dunbar /// 3940dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// This function clears the current insertion point. The caller should follow 3950dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// calls to this function with calls to Emit*Block prior to generation new 3960dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// code. 397d57a871339c7c98d58d93108b806f59bdf4e13e2Daniel Dunbar void EmitBranch(llvm::BasicBlock *Block); 398d57a871339c7c98d58d93108b806f59bdf4e13e2Daniel Dunbar 3990dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// HaveInsertPoint - True if an insertion point is defined. If not, this 4000dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// indicates that the current code being emitted is unreachable. 4010dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump bool HaveInsertPoint() const { 402a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar return Builder.GetInsertBlock() != 0; 403a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar } 404a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 4050dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EnsureInsertPoint - Ensure that an insertion point is defined so that 4060dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// emitted IR has a place to go. Note that by definition, if this function 4070dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// creates a block then that block is unreachable; callers may do better to 4080dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// detect when no insertion point is defined and simply skip IR generation. 409a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar void EnsureInsertPoint() { 410a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar if (!HaveInsertPoint()) 411a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar EmitBlock(createBasicBlock()); 412a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar } 4130dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 414488e993a135ce700b982bf099c3d6b856301d642Daniel Dunbar /// ErrorUnsupported - Print out an error that codegen doesn't support the 415dc5e8268292046114ffe02e48773572a91a310f1Chris Lattner /// specified stmt yet. 41690df4b6661968a84bf64baee489bb2f6d948fcc1Daniel Dunbar void ErrorUnsupported(const Stmt *S, const char *Type, 41790df4b6661968a84bf64baee489bb2f6d948fcc1Daniel Dunbar bool OmitOnError=false); 4185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 4205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Helpers 4215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 4220dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 4235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// CreateTempAlloca - This creates a alloca and inserts it into the entry 4245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// block. 4255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::AllocaInst *CreateTempAlloca(const llvm::Type *Ty, 4265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *Name = "tmp"); 4270dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 4285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EvaluateExprAsBool - Perform the usual unary conversions on the specified 4295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// expression and compare the result against zero, returning an Int1Ty value. 4305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::Value *EvaluateExprAsBool(const Expr *E); 4315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4329b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// EmitAnyExpr - Emit code to compute the specified expression which can have 4339b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// any type. The result is returned as an RValue struct. If this is an 4349b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// aggregate expression, the aggloc/agglocvolatile arguments indicate where 4359b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// the result should be returned. 4360dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump RValue EmitAnyExpr(const Expr *E, llvm::Value *AggLoc = 0, 4379b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner bool isAggLocVolatile = false); 438d9363c3a80168283b3da518b4e17f545a6246857Devang Patel 4390dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // EmitVAListRef - Emit a "reference" to a va_list; this is either the address 4400dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // or the value of the expression, depending on how va_list is defined. 4414fd0aa5803357d8c72eeac2cae15e12649ea08feEli Friedman llvm::Value *EmitVAListRef(const Expr *E); 4424fd0aa5803357d8c72eeac2cae15e12649ea08feEli Friedman 4430dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitAnyExprToTemp - Similary to EmitAnyExpr(), however, the result will 4440dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// always be accessible even if no aggregate location is provided. 4450dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump RValue EmitAnyExprToTemp(const Expr *E, llvm::Value *AggLoc = 0, 44646f45b9bec4a265ad8400a538e5ec3a5683617f1Daniel Dunbar bool isAggLocVolatile = false); 44746f45b9bec4a265ad8400a538e5ec3a5683617f1Daniel Dunbar 4487482d12c345c6391f8956850545e2d4aa7701ce6Daniel Dunbar void EmitAggregateCopy(llvm::Value *DestPtr, llvm::Value *SrcPtr, 4497482d12c345c6391f8956850545e2d4aa7701ce6Daniel Dunbar QualType EltTy); 4507482d12c345c6391f8956850545e2d4aa7701ce6Daniel Dunbar 4517482d12c345c6391f8956850545e2d4aa7701ce6Daniel Dunbar void EmitAggregateClear(llvm::Value *DestPtr, QualType Ty); 4527482d12c345c6391f8956850545e2d4aa7701ce6Daniel Dunbar 45351b09f2c528c8460b5465c676173324e44176d62Devang Patel /// StartBlock - Start new block named N. If insert block is a dummy block 45451b09f2c528c8460b5465c676173324e44176d62Devang Patel /// then reuse it. 45551b09f2c528c8460b5465c676173324e44176d62Devang Patel void StartBlock(const char *N); 45651b09f2c528c8460b5465c676173324e44176d62Devang Patel 45788a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel /// getCGRecordLayout - Return record layout info. 45888a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel const CGRecordLayout *getCGRecordLayout(CodeGenTypes &CGT, QualType RTy); 459813733577d33ec56479667b49e1bff42dc6bba90Lauro Ramos Venancio 460813733577d33ec56479667b49e1bff42dc6bba90Lauro Ramos Venancio /// GetAddrOfStaticLocalVar - Return the address of a static local variable. 461248a753f6b670692523c99afaeb8fe98f7ae3ca7Steve Naroff llvm::Constant *GetAddrOfStaticLocalVar(const VarDecl *BVD); 4624f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman 463dde0a94120915fa925d1ffcdb997c7b44dc9fa21Anders Carlsson /// GetAddrOfLocalVar - Return the address of a local variable. 464dde0a94120915fa925d1ffcdb997c7b44dc9fa21Anders Carlsson llvm::Value *GetAddrOfLocalVar(const VarDecl *VD); 4650dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 4664f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman /// getAccessedFieldNo - Given an encoded value and a result number, return 4674f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman /// the input field number being accessed. 4684f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman static unsigned getAccessedFieldNo(unsigned Idx, const llvm::Constant *Elts); 4694f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman 4700ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar unsigned GetIDForAddrOfLabel(const LabelStmt *L); 4710ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar 4720dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitMemSetToZero - Generate code to memset a value of the given type to 0. 4733d8400d9a61aa4b63ff35e5cede405b32a41425eAnders Carlsson void EmitMemSetToZero(llvm::Value *DestPtr, QualType Ty); 474ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson 475ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson // EmitVAArg - Generate code to get an argument from the passed in pointer 476ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson // and update it accordingly. The return value is a pointer to the argument. 477ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson // FIXME: We should be able to get rid of this method and use the va_arg 4780dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // instruction in LLVM instead once it works well enough. 479ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson llvm::Value *EmitVAArg(llvm::Value *VAListAddr, QualType Ty); 480f666b7780d04186521adcaedb0e15dfa4d5e6933Anders Carlsson 48160d35413662ebdcd1d31e34a8a7c665eb6977f1eAnders Carlsson // EmitVLASize - Generate code for any VLA size expressions that might occur 48260d35413662ebdcd1d31e34a8a7c665eb6977f1eAnders Carlsson // in a variably modified type. If Ty is a VLA, will return the value that 48360d35413662ebdcd1d31e34a8a7c665eb6977f1eAnders Carlsson // corresponds to the size in bytes of the VLA type. Will return 0 otherwise. 48460d35413662ebdcd1d31e34a8a7c665eb6977f1eAnders Carlsson llvm::Value *EmitVLASize(QualType Ty); 4850dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 486dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson // GetVLASize - Returns an LLVM value that corresponds to the size in bytes 487dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson // of a variable length array type. 488dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson llvm::Value *GetVLASize(const VariableArrayType *); 489dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson 4905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 4915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Declaration Emission 4925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 4930dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 4945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitDecl(const Decl &D); 495248a753f6b670692523c99afaeb8fe98f7ae3ca7Steve Naroff void EmitBlockVarDecl(const VarDecl &D); 496248a753f6b670692523c99afaeb8fe98f7ae3ca7Steve Naroff void EmitLocalBlockVarDecl(const VarDecl &D); 497248a753f6b670692523c99afaeb8fe98f7ae3ca7Steve Naroff void EmitStaticBlockVarDecl(const VarDecl &D); 498b7ec246872b412f0e7bb9e93eacfd78cfa6adfb3Daniel Dunbar 499b7ec246872b412f0e7bb9e93eacfd78cfa6adfb3Daniel Dunbar /// EmitParmDecl - Emit a ParmVarDecl or an ImplicitParamDecl. 500b7ec246872b412f0e7bb9e93eacfd78cfa6adfb3Daniel Dunbar void EmitParmDecl(const VarDecl &D, llvm::Value *Arg); 5010dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 5025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 5035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Statement Emission 5045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 5055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5060dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitStopPoint - Emit a debug stoppoint if we are emitting debug info. 5070912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar void EmitStopPoint(const Stmt *S); 5080912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar 5090dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitStmt - Emit the code for the statement \arg S. It is legal to call 5100dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// this function even if there is no current insertion point. 5110dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// 5120dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// This function may clear the current insertion point; callers should use 5130dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EnsureInsertPoint if they wish to subsequently generate code without first 5140dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// calling EmitBlock, EmitBranch, or EmitStmt. 5155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitStmt(const Stmt *S); 516a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 5170912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar /// EmitSimpleStmt - Try to emit a "simple" statement which does not 5180dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// necessarily require an insertion point or debug information; typically 5190dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// because the statement amounts to a jump or a container of other 5200dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// statements. 5210912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar /// 5220912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar /// \return True if the statement was handled. 5230912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar bool EmitSimpleStmt(const Stmt *S); 5240912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar 5259b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner RValue EmitCompoundStmt(const CompoundStmt &S, bool GetLast = false, 5269b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner llvm::Value *AggLoc = 0, bool isAggVol = false); 527a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 5280dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitLabel - Emit the block for the given label. It is legal to call this 5290dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// function even if there is no current insertion point. 53091d723da7b68be5245c3ac58aa2a36d04658cfb8Chris Lattner void EmitLabel(const LabelStmt &S); // helper for EmitLabelStmt. 531a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 5325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitLabelStmt(const LabelStmt &S); 5335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitGotoStmt(const GotoStmt &S); 5340ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar void EmitIndirectGotoStmt(const IndirectGotoStmt &S); 5355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitIfStmt(const IfStmt &S); 5365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitWhileStmt(const WhileStmt &S); 5375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitDoStmt(const DoStmt &S); 5385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitForStmt(const ForStmt &S); 5395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitReturnStmt(const ReturnStmt &S); 5405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitDeclStmt(const DeclStmt &S); 5410912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar void EmitBreakStmt(const BreakStmt &S); 5420912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar void EmitContinueStmt(const ContinueStmt &S); 54351b09f2c528c8460b5465c676173324e44176d62Devang Patel void EmitSwitchStmt(const SwitchStmt &S); 54451b09f2c528c8460b5465c676173324e44176d62Devang Patel void EmitDefaultStmt(const DefaultStmt &S); 54551b09f2c528c8460b5465c676173324e44176d62Devang Patel void EmitCaseStmt(const CaseStmt &S); 546c049e4f406a7f7179eba98659044a32508e53289Devang Patel void EmitCaseStmtRange(const CaseStmt &S); 547fb1aeb804c08d5288a923fb278161783e6abdc66Anders Carlsson void EmitAsmStmt(const AsmStmt &S); 5480dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 5493d8400d9a61aa4b63ff35e5cede405b32a41425eAnders Carlsson void EmitObjCForCollectionStmt(const ObjCForCollectionStmt &S); 55064d5d6c5903157c521af496479d06dc26032d718Anders Carlsson void EmitObjCAtTryStmt(const ObjCAtTryStmt &S); 55164d5d6c5903157c521af496479d06dc26032d718Anders Carlsson void EmitObjCAtThrowStmt(const ObjCAtThrowStmt &S); 55210cac6f7115b59a466bb8d2d51cdddeb38aadc37Chris Lattner void EmitObjCAtSynchronizedStmt(const ObjCAtSynchronizedStmt &S); 5530dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 5545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 5555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // LValue Expression Emission 5565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 5575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 55813e81737a433b23f8c662d10d1d57356122a8caaDaniel Dunbar /// GetUndefRValue - Get an appropriate 'undef' rvalue for the given type. 55913e81737a433b23f8c662d10d1d57356122a8caaDaniel Dunbar RValue GetUndefRValue(QualType Ty); 56013e81737a433b23f8c662d10d1d57356122a8caaDaniel Dunbar 561ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar /// EmitUnsupportedRValue - Emit a dummy r-value using the type of E 562ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar /// and issue an ErrorUnsupported style diagnostic (using the 563ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar /// provided Name). 564ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar RValue EmitUnsupportedRValue(const Expr *E, 565ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar const char *Name); 566ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar 5670dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitUnsupportedLValue - Emit a dummy l-value using the type of E and issue 5680dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// an ErrorUnsupported style diagnostic (using the provided Name). 5696ba82a4a4b295e54cf192c3e98b28f39990c6194Daniel Dunbar LValue EmitUnsupportedLValue(const Expr *E, 5706ba82a4a4b295e54cf192c3e98b28f39990c6194Daniel Dunbar const char *Name); 5716ba82a4a4b295e54cf192c3e98b28f39990c6194Daniel Dunbar 5725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EmitLValue - Emit code to compute a designator that specifies the location 5735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// of the expression. 5745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 5755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// This can return one of two things: a simple address or a bitfield 5765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// reference. In either case, the LLVM Value* in the LValue structure is 5775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// guaranteed to be an LLVM pointer type. 5785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 5795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// If this returns a bitfield reference, nothing about the pointee type of 5805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// the LLVM value is known: For example, it may not be a pointer to an 5815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// integer. 5825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 5835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// If this returns a normal address, and if the lvalue's C type is fixed 5845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// size, this method guarantees that the returned pointer type will point to 5855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// an LLVM type of the same size of the lvalue's type. If the lvalue has a 5865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// variable length type, this is not possible. 5875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 5885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitLValue(const Expr *E); 5890dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 5909d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// EmitLoadOfScalar - Load a scalar value from an address, taking 5919d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// care to appropriately convert from the memory representation to 5929d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// the LLVM value representation. 5939d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar llvm::Value *EmitLoadOfScalar(llvm::Value *Addr, bool Volatile, 5949d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar QualType Ty); 5959d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar 5969d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// EmitStoreOfScalar - Store a scalar value to an address, taking 5979d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// care to appropriately convert from the memory representation to 5989d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// the LLVM value representation. 5999d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar void EmitStoreOfScalar(llvm::Value *Value, llvm::Value *Addr, 6009d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar bool Volatile); 6019d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar 6025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EmitLoadOfLValue - Given an expression that represents a value lvalue, 6035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// this method emits the address of the lvalue, then loads the result as an 6045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// rvalue, returning the rvalue. 6055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer RValue EmitLoadOfLValue(LValue V, QualType LVType); 606213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman RValue EmitLoadOfExtVectorElementLValue(LValue V, QualType LVType); 6073b8c22d93da1432b2d4cea779d14912645c93866Lauro Ramos Venancio RValue EmitLoadOfBitfieldLValue(LValue LV, QualType ExprType); 60885c59edda02df48fae8dc85049743319bc6e7e89Daniel Dunbar RValue EmitLoadOfPropertyRefLValue(LValue LV, QualType ExprType); 60943f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian RValue EmitLoadOfKVCRefLValue(LValue LV, QualType ExprType); 6105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6110dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 6125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EmitStoreThroughLValue - Store the specified rvalue into the specified 6135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// lvalue, where both are guaranteed to the have the same type, and that type 6145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// is 'Ty'. 6155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitStoreThroughLValue(RValue Src, LValue Dst, QualType Ty); 616213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman void EmitStoreThroughExtVectorComponentLValue(RValue Src, LValue Dst, 617213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman QualType Ty); 61885c59edda02df48fae8dc85049743319bc6e7e89Daniel Dunbar void EmitStoreThroughPropertyRefLValue(RValue Src, LValue Dst, QualType Ty); 61943f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian void EmitStoreThroughKVCRefLValue(RValue Src, LValue Dst, QualType Ty); 620ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar 6210dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitStoreThroughLValue - Store Src into Dst with same constraints as 6220dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitStoreThroughLValue. 623ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar /// 6240dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// \param Result [out] - If non-null, this will be set to a Value* for the 6250dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// bit-field contents after the store, appropriate for use as the result of 6260dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// an assignment to the bit-field. 627ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar void EmitStoreThroughBitfieldLValue(RValue Src, LValue Dst, QualType Ty, 628ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar llvm::Value **Result=0); 6290dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 63022c940ee588a420cd2e6c8f68be2ac3cc80061ffChristopher Lamb // Note: only availabe for agg return types 63180e62c29fe21cd06c93eba6e72b7e32dca06fcf9Daniel Dunbar LValue EmitBinaryOperatorLValue(const BinaryOperator *E); 63280e62c29fe21cd06c93eba6e72b7e32dca06fcf9Daniel Dunbar // Note: only availabe for agg return types 63322c940ee588a420cd2e6c8f68be2ac3cc80061ffChristopher Lamb LValue EmitCallExprLValue(const CallExpr *E); 6345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitDeclRefLValue(const DeclRefExpr *E); 6355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitStringLiteralLValue(const StringLiteral *E); 636662b71ee82339c67f2c3689196e716c6560cf925Daniel Dunbar LValue EmitPredefinedFunctionName(unsigned Type); 637d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner LValue EmitPredefinedLValue(const PredefinedExpr *E); 6385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitUnaryOpLValue(const UnaryOperator *E); 6395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitArraySubscriptExpr(const ArraySubscriptExpr *E); 640213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman LValue EmitExtVectorElementExpr(const ExtVectorElementExpr *E); 641b84a06e68ffd71da22e3c75b6e4bbdba37816413Devang Patel LValue EmitMemberExpr(const MemberExpr *E); 64206e863f2902b8ba55b056308875c19f7ba3dab25Eli Friedman LValue EmitCompoundLiteralLValue(const CompoundLiteralExpr *E); 643472778eb4fce241721c563280886e98389bc7219Eli Friedman 64429e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar llvm::Value *EmitIvarOffset(ObjCInterfaceDecl *Interface, 64529e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar const ObjCIvarDecl *Ivar); 646472778eb4fce241721c563280886e98389bc7219Eli Friedman LValue EmitLValueForField(llvm::Value* Base, FieldDecl* Field, 6471e692ace08959399794363e77499b73da5494af9Eli Friedman bool isUnion, unsigned CVRQualifiers); 64845012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian LValue EmitLValueForIvar(QualType ObjectTy, 64945012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian llvm::Value* Base, const ObjCIvarDecl *Ivar, 650fd64bb635dc221baa19f81d5d2a084f7eb269f7fFariborz Jahanian const FieldDecl *Field, 65129e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar unsigned CVRQualifiers); 65229e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar 653fd64bb635dc221baa19f81d5d2a084f7eb269f7fFariborz Jahanian LValue EmitLValueForBitfield(llvm::Value* Base, FieldDecl* Field, 654598d3f61b6ca854e9d3c2f3359e24468502a61aaFariborz Jahanian unsigned CVRQualifiers); 655fd64bb635dc221baa19f81d5d2a084f7eb269f7fFariborz Jahanian 656e3a09e6ad09f8d1387ecaa008aaf85527909da0aArgyrios Kyrtzidis LValue EmitCXXConditionDeclLValue(const CXXConditionDeclExpr *E); 657e3a09e6ad09f8d1387ecaa008aaf85527909da0aArgyrios Kyrtzidis 6580a04d77bde7e3a661c2b41b60630d125d09ed6efDaniel Dunbar LValue EmitObjCMessageExprLValue(const ObjCMessageExpr *E); 659391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner LValue EmitObjCIvarRefLValue(const ObjCIvarRefExpr *E); 66085c59edda02df48fae8dc85049743319bc6e7e89Daniel Dunbar LValue EmitObjCPropertyRefLValue(const ObjCPropertyRefExpr *E); 66143f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian LValue EmitObjCKVCRefLValue(const ObjCKVCRefExpr *E); 662cd9b46e5442a3ef17f83f75177d8545cb5b3e2b9Douglas Gregor LValue EmitObjCSuperExpr(const ObjCSuperExpr *E); 6630a04d77bde7e3a661c2b41b60630d125d09ed6efDaniel Dunbar 6645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 665883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner // Scalar Expression Emission 6665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 6675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6680dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitCall - Generate a call of the given function, expecting the given 6690dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// result type, and using the given argument list which specifies both the 6700dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// LLVM arguments and the types they were derived from. 67188b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar RValue EmitCall(const CGFunctionInfo &FnInfo, 67288b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar llvm::Value *Callee, 67319cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar const CallArgList &Args); 67419cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar 6755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer RValue EmitCallExpr(const CallExpr *E); 6765549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek 6775549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek RValue EmitCallExpr(Expr *FnExpr, CallExpr::const_arg_iterator ArgBeg, 6785549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek CallExpr::const_arg_iterator ArgEnd); 6795549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek 6805193b8a3e57c4f696161aeddfe8227c294c0a7feEli Friedman RValue EmitCallExpr(llvm::Value *Callee, QualType FnType, 6815549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek CallExpr::const_arg_iterator ArgBeg, 6825549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek CallExpr::const_arg_iterator ArgEnd); 6830dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 6841e4d21ea5849637c49fd4222b09c4b5dedff7765Chris Lattner RValue EmitBuiltinExpr(unsigned BuiltinID, const CallExpr *E); 6855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6860dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitTargetBuiltinExpr - Emit the given builtin call. Returns 0 if the call 6870dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// is unhandled by the current target. 688f02e9ddf5efc75917af712b3c7f909581205f0a5Daniel Dunbar llvm::Value *EmitTargetBuiltinExpr(unsigned BuiltinID, const CallExpr *E); 689f02e9ddf5efc75917af712b3c7f909581205f0a5Daniel Dunbar 690564f1de67d7ba43646b8740db86d6269e3dfbe0bAnders Carlsson llvm::Value *EmitX86BuiltinExpr(unsigned BuiltinID, const CallExpr *E); 691564f1de67d7ba43646b8740db86d6269e3dfbe0bAnders Carlsson llvm::Value *EmitPPCBuiltinExpr(unsigned BuiltinID, const CallExpr *E); 6920dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 693cc23acae84c6d5c37b4805edbcd95ee5d821c400Anders Carlsson llvm::Value *EmitShuffleVector(llvm::Value* V1, llvm::Value *V2, ...); 6944119d1aeca8016654d381ce079864058d1709571Nate Begeman llvm::Value *EmitVector(llvm::Value * const *Vals, unsigned NumVals, 6954119d1aeca8016654d381ce079864058d1709571Nate Begeman bool isSplat = false); 6960dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 697ed7c618f849e2541b1d0288c43154937652c5b15Daniel Dunbar llvm::Value *EmitObjCProtocolExpr(const ObjCProtocolExpr *E); 6987f02f721d48772e4eee4fccd8af4f800be1bbc1eChris Lattner llvm::Value *EmitObjCStringLiteral(const ObjCStringLiteral *E); 6998fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner llvm::Value *EmitObjCSelectorExpr(const ObjCSelectorExpr *E); 7008f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar RValue EmitObjCMessageExpr(const ObjCMessageExpr *E); 7015daf570d0ce027e18ed5f9d66e6b2a14a40b720dFariborz Jahanian RValue EmitObjCPropertyGet(const Expr *E); 70243f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian void EmitObjCPropertySet(const Expr *E, RValue Src); 7038fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner 7048fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner 705883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner //===--------------------------------------------------------------------===// 706bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattner // Expression Emission 707883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner //===--------------------------------------------------------------------===// 708bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattner 709bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattner // Expressions are broken into three classes: scalar, complex, aggregate. 7100dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 7110dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitScalarExpr - Emit the computation of the specified expression of LLVM 7120dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// scalar type, returning the result. 7137f02f721d48772e4eee4fccd8af4f800be1bbc1eChris Lattner llvm::Value *EmitScalarExpr(const Expr *E); 7140dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 7153707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner /// EmitScalarConversion - Emit a conversion from the specified type to the 7163707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner /// specified destination type, both of which are LLVM scalar types. 7173707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner llvm::Value *EmitScalarConversion(llvm::Value *Src, QualType SrcTy, 7183707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner QualType DstTy); 7190dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 7204f1a7b380809b4ca19ad2daff61bc11cd1e979d8Chris Lattner /// EmitComplexToScalarConversion - Emit a conversion from the specified 7210dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// complex type to the specified destination type, where the destination type 7220dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// is an LLVM scalar type. 7234f1a7b380809b4ca19ad2daff61bc11cd1e979d8Chris Lattner llvm::Value *EmitComplexToScalarConversion(ComplexPairTy Src, QualType SrcTy, 7244f1a7b380809b4ca19ad2daff61bc11cd1e979d8Chris Lattner QualType DstTy); 7250dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 7260dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 727883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner /// EmitAggExpr - Emit the computation of the specified expression of 728883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner /// aggregate type. The result is computed into DestPtr. Note that if 729883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner /// DestPtr is null, the value of the aggregate expression is not needed. 730883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner void EmitAggExpr(const Expr *E, llvm::Value *DestPtr, bool VolatileDest); 7310dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 732b6ef18a2b06d6760459e1756a61f79ff496cee19Chris Lattner /// EmitComplexExpr - Emit the computation of the specified expression of 73323b1cdb0b5e089468bb8475b8ec9287af67b4b59Chris Lattner /// complex type, returning the result. 73458dee10ed2eee34035f62d1c2d32b3639e9182f8Chris Lattner ComplexPairTy EmitComplexExpr(const Expr *E); 7350dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 73623b1cdb0b5e089468bb8475b8ec9287af67b4b59Chris Lattner /// EmitComplexExprIntoAddr - Emit the computation of the specified expression 73723b1cdb0b5e089468bb8475b8ec9287af67b4b59Chris Lattner /// of complex type, storing into the specified Value*. 738190dbe203c2e892ac40f1786035c6c9be3f44a4cChris Lattner void EmitComplexExprIntoAddr(const Expr *E, llvm::Value *DestAddr, 739190dbe203c2e892ac40f1786035c6c9be3f44a4cChris Lattner bool DestIsVolatile); 7407f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar 7417f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar /// StoreComplexToAddr - Store a complex number into the specified address. 7427f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar void StoreComplexToAddr(ComplexPairTy V, llvm::Value *DestAddr, 7437f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar bool DestIsVolatile); 7449b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// LoadComplexFromAddr - Load a complex number from the specified address. 7459b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner ComplexPairTy LoadComplexFromAddr(llvm::Value *SrcAddr, bool SrcIsVolatile); 7462621fd1d6d3c5eadcae246859f62738645df7540Chris Lattner 7470dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// GenerateStaticBlockVarDecl - return the the static declaration of local 7480dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// variable. 74945206ecf708bf03b04db07c2476b9f862127a8b1Sanjiv Gupta llvm::GlobalValue * GenerateStaticBlockVarDecl(const VarDecl &D, 75045206ecf708bf03b04db07c2476b9f862127a8b1Sanjiv Gupta bool NoInit, 75145206ecf708bf03b04db07c2476b9f862127a8b1Sanjiv Gupta const char *Separator, 75245206ecf708bf03b04db07c2476b9f862127a8b1Sanjiv Gupta llvm::GlobalValue 75345206ecf708bf03b04db07c2476b9f862127a8b1Sanjiv Gupta ::LinkageTypes Linkage); 7540ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar 7550dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // GenerateStaticCXXBlockVarDecl - return the static declaration of a local 7560dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // variable. Performs initialization of the variable if necessary. 757e1b29efab32d02e114046d33cca242a88585bf8aAnders Carlsson llvm::GlobalValue *GenerateStaticCXXBlockVarDecl(const VarDecl &D); 758e1b29efab32d02e114046d33cca242a88585bf8aAnders Carlsson 7590ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar //===--------------------------------------------------------------------===// 7600ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar // Internal Helpers 7610ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar //===--------------------------------------------------------------------===// 7620dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 7630946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner /// ContainsLabel - Return true if the statement contains a label in it. If 7640946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner /// this statement is not executed normally, it not containing a label means 7650946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner /// that we can just remove the code. 7660946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner static bool ContainsLabel(const Stmt *S, bool IgnoreCaseStmts = false); 7670dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 7684bc0455d826e9634b7a68c0d06146edd633c9453Daniel Dunbar /// ConstantFoldsToSimpleInteger - If the specified expression does not fold 76931a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// to a constant, or if it does but contains a label, return 0. If it 77031a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// constant folds to 'true' and does not contain a label, return 1, if it 77131a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// constant folds to 'false' and does not contain a label, return -1. 77231a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner int ConstantFoldsToSimpleInteger(const Expr *Cond); 7730dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 77431a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// EmitBranchOnBoolExpr - Emit a branch on a boolean condition (e.g. for an 77531a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// if statement) to the specified blocks. Based on the condition, this might 77631a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// try to simplify the codegen of the conditional based on the branch. 7779bc47e29dce8f095be7a6d07dbb02a5a7a112949Chris Lattner void EmitBranchOnBoolExpr(const Expr *Cond, llvm::BasicBlock *TrueBlock, 7784bc0455d826e9634b7a68c0d06146edd633c9453Daniel Dunbar llvm::BasicBlock *FalseBlock); 77931a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattnerprivate: 7800dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 7810ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar /// EmitIndirectSwitches - Emit code for all of the switch 7820ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar /// instructions in IndirectSwitches. 7830ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar void EmitIndirectSwitches(); 7845627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar 78529e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar void EmitReturnOfRValue(RValue RV, QualType Ty); 78629e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar 7875627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// ExpandTypeFromArgs - Reconstruct a structure of type \arg Ty 7885627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// from function arguments into \arg Dst. See ABIArgInfo::Expand. 7895627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// 7905627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// \param AI - The first function argument of the expansion. 7915627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// \return The argument following the last expanded function 7925627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// argument. 7930dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump llvm::Function::arg_iterator 7945627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar ExpandTypeFromArgs(QualType Ty, LValue Dst, 7955627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar llvm::Function::arg_iterator AI); 7965627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar 7970dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// ExpandTypeToArgs - Expand an RValue \arg Src, with the LLVM type for \arg 7980dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// Ty, into individual arguments on the provided vector \arg Args. See 7990dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// ABIArgInfo::Expand. 8000dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump void ExpandTypeToArgs(QualType Ty, RValue Src, 8015627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar llvm::SmallVector<llvm::Value*, 16> &Args); 802c8c7b187adcd989e01a9fba1ebead6c2abd770c9Anders Carlsson 803c8c7b187adcd989e01a9fba1ebead6c2abd770c9Anders Carlsson llvm::Value* EmitAsmInput(const AsmStmt &S, TargetInfo::ConstraintInfo Info, 804c8c7b187adcd989e01a9fba1ebead6c2abd770c9Anders Carlsson const Expr *InputExpr, std::string &ConstraintStr); 8050dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 806c71c845fe77ee1f891d60232ec320912d88557eeAnders Carlsson /// EmitCleanupBlock - emits a single cleanup block. 807c71c845fe77ee1f891d60232ec320912d88557eeAnders Carlsson void EmitCleanupBlock(); 808c71c845fe77ee1f891d60232ec320912d88557eeAnders Carlsson 80987eaf17cc88516277e4389dfa15df93ecfdce559Anders Carlsson /// AddBranchFixup - adds a branch instruction to the list of fixups for the 81087eaf17cc88516277e4389dfa15df93ecfdce559Anders Carlsson /// current cleanup scope. 81187eaf17cc88516277e4389dfa15df93ecfdce559Anders Carlsson void AddBranchFixup(llvm::BranchInst *BI); 8120dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 8135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 8145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace CodeGen 8155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace clang 8165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#endif 818