CodeGenFunction.h revision 13e81737a433b23f8c662d10d1d57356122a8caa
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// 105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 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; 5988a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel class CGRecordLayout; 6045d196b8387dcefc4df26cda114fa34c6528e928Daniel Dunbar 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; 67bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattner 6858dee10ed2eee34035f62d1c2d32b3639e9182f8Chris Lattner typedef std::pair<llvm::Value *, llvm::Value *> ComplexPairTy; 6945d196b8387dcefc4df26cda114fa34c6528e928Daniel Dunbar CGBuilderTy Builder; 705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 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; 795ca2084cf9b529563209429857f01fdae9dcdfa5Daniel Dunbar /// ReturnValue - The temporary alloca to hold the return value. This 805ca2084cf9b529563209429857f01fdae9dcdfa5Daniel Dunbar /// is null iff the function has no return value. 815ca2084cf9b529563209429857f01fdae9dcdfa5Daniel Dunbar llvm::Instruction *ReturnValue; 825ca2084cf9b529563209429857f01fdae9dcdfa5Daniel Dunbar 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: 9118ccc7776ad6288c5f630dc7967fb99d099c9cd9Daniel Dunbar // FIXME: The following should be private once EH code is moved out 9218ccc7776ad6288c5f630dc7967fb99d099c9cd9Daniel Dunbar // of NeXT runtime. 9318ccc7776ad6288c5f630dc7967fb99d099c9cd9Daniel Dunbar 9418ccc7776ad6288c5f630dc7967fb99d099c9cd9Daniel Dunbar // ObjCEHStack - This keeps track of which object to rethrow from 9518ccc7776ad6288c5f630dc7967fb99d099c9cd9Daniel Dunbar // inside @catch blocks and which @finally block exits from an EH 9618ccc7776ad6288c5f630dc7967fb99d099c9cd9Daniel Dunbar // scope should be chained through. 9718ccc7776ad6288c5f630dc7967fb99d099c9cd9Daniel Dunbar struct ObjCEHEntry { 98898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar ObjCEHEntry(llvm::BasicBlock *fb, llvm::BasicBlock *fne, 99898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar llvm::SwitchInst *fs, llvm::Value *dc) 100898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar : FinallyBlock(fb), FinallyNoExit(fne), FinallySwitch(fs), 101898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar DestCode(dc), Exception(0) {} 10218ccc7776ad6288c5f630dc7967fb99d099c9cd9Daniel Dunbar 103898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar /// Entry point to the finally block. 104898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar llvm::BasicBlock *FinallyBlock; 105898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar 106898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar /// Entry point to the finally block which skips execution of the 107898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar /// try_exit runtime function. 108898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar llvm::BasicBlock *FinallyNoExit; 109898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar 110898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar /// Switch instruction which runs at the end of the finally block 111898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar /// to forward jumps through the finally block. 112898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar llvm::SwitchInst *FinallySwitch; 113898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar 114898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar /// Variable holding the code for the destination of a jump 115898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar /// through the @finally block. 116898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar llvm::Value *DestCode; 117898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar 118898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar /// The exception object being handled, during IR generation for a 119898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar /// @catch block. 120898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar llvm::Value *Exception; 12118ccc7776ad6288c5f630dc7967fb99d099c9cd9Daniel Dunbar }; 122898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar 123898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar typedef llvm::SmallVector<ObjCEHEntry*, 8> ObjCEHStackType; 124898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar ObjCEHStackType ObjCEHStack; 125898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar 126898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar /// EmitJumpThroughFinally - Emit a branch from the current insert 127898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar /// point through the finally handling code for \arg Entry and then 128a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// on to \arg Dest. It is legal to call this function even if there 129a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// is no current insertion point. 130898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar /// 131898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar /// \param ExecuteTryExit - When true, the try_exit runtime function 132898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar /// should be called prior to executing the finally code. 133898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar void EmitJumpThroughFinally(ObjCEHEntry *Entry, llvm::BasicBlock *Dest, 134898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar bool ExecuteTryExit=true); 1355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1367f02f721d48772e4eee4fccd8af4f800be1bbc1eChris Lattnerprivate: 1370ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar /// LabelIDs - Track arbitrary ids assigned to labels for use in 1380ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar /// implementing the GCC address-of-label extension and indirect 1390ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar /// goto. IDs are assigned to labels inside getIDForAddrOfLabel(). 1400ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar std::map<const LabelStmt*, unsigned> LabelIDs; 1410ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar 1420ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar /// IndirectSwitches - Record the list of switches for indirect 1430ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar /// gotos. Emission of the actual switching code needs to be delayed 1440ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar /// until all AddrLabelExprs have been seen. 1450ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar std::vector<llvm::SwitchInst*> IndirectSwitches; 1460ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar 1475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// LocalDeclMap - This keeps track of the LLVM allocas or globals for local C 1485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// decls. 1495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::DenseMap<const Decl*, llvm::Value*> LocalDeclMap; 1505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// LabelMap - This keeps track of the LLVM basic block for each C label. 1525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::DenseMap<const LabelStmt*, llvm::BasicBlock*> LabelMap; 153da13870e99fe33934b2122f06528a5063f78ae4cChris Lattner 154da13870e99fe33934b2122f06528a5063f78ae4cChris Lattner // BreakContinueStack - This keeps track of where break and continue 155e21269bcb732afa70386fdd4c95d22bc2ed943b1Anders Carlsson // statements should jump to, as well as the size of the eh stack. 156da13870e99fe33934b2122f06528a5063f78ae4cChris Lattner struct BreakContinue { 157e21269bcb732afa70386fdd4c95d22bc2ed943b1Anders Carlsson BreakContinue(llvm::BasicBlock *bb, llvm::BasicBlock *cb, size_t ehss) 158e21269bcb732afa70386fdd4c95d22bc2ed943b1Anders Carlsson : BreakBlock(bb), ContinueBlock(cb), EHStackSize(ehss) {} 159da13870e99fe33934b2122f06528a5063f78ae4cChris Lattner 160da13870e99fe33934b2122f06528a5063f78ae4cChris Lattner llvm::BasicBlock *BreakBlock; 161da13870e99fe33934b2122f06528a5063f78ae4cChris Lattner llvm::BasicBlock *ContinueBlock; 162e21269bcb732afa70386fdd4c95d22bc2ed943b1Anders Carlsson size_t EHStackSize; 163da13870e99fe33934b2122f06528a5063f78ae4cChris Lattner }; 164da13870e99fe33934b2122f06528a5063f78ae4cChris Lattner llvm::SmallVector<BreakContinue, 8> BreakContinueStack; 16518ccc7776ad6288c5f630dc7967fb99d099c9cd9Daniel Dunbar 16680fd5f96e6805ac43aab99faabd5b4c8b19551b7Devang Patel /// SwitchInsn - This is nearest current switch instruction. It is null if 16780fd5f96e6805ac43aab99faabd5b4c8b19551b7Devang Patel /// if current context is not in a switch. 16851b09f2c528c8460b5465c676173324e44176d62Devang Patel llvm::SwitchInst *SwitchInsn; 16951b09f2c528c8460b5465c676173324e44176d62Devang Patel 17080fd5f96e6805ac43aab99faabd5b4c8b19551b7Devang Patel /// CaseRangeBlock - This block holds if condition check for last case 17180fd5f96e6805ac43aab99faabd5b4c8b19551b7Devang Patel /// statement range in current switch instruction. 172c049e4f406a7f7179eba98659044a32508e53289Devang Patel llvm::BasicBlock *CaseRangeBlock; 173c049e4f406a7f7179eba98659044a32508e53289Devang Patel 174dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson // VLASizeMap - This keeps track of the associated size for each VLA type 175dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson // FIXME: Maybe this could be a stack of maps that is pushed/popped as 176dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson // we enter/leave scopes. 177dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson llvm::DenseMap<const VariableArrayType*, llvm::Value*> VLASizeMap; 178dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson 17917d28a3e0b0efaba14534d0e6d6a307283d96b9fAnders Carlsson /// StackSaveValues - A stack(!) of stack save values. When a new scope is 18017d28a3e0b0efaba14534d0e6d6a307283d96b9fAnders Carlsson /// entered, a null is pushed on this stack. If a VLA is emitted, then 18117d28a3e0b0efaba14534d0e6d6a307283d96b9fAnders Carlsson /// the return value of llvm.stacksave() is stored at the top of this stack. 18217d28a3e0b0efaba14534d0e6d6a307283d96b9fAnders Carlsson llvm::SmallVector<llvm::Value*, 8> StackSaveValues; 18317d28a3e0b0efaba14534d0e6d6a307283d96b9fAnders Carlsson 1845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 1855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CodeGenFunction(CodeGenModule &cgm); 1865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ASTContext &getContext() const; 1885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 189391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner void GenerateObjCMethod(const ObjCMethodDecl *OMD); 190af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 191679a502d462ef819e6175b58e255ca3f3391e7cfFariborz Jahanian void StartObjCMethod(const ObjCMethodDecl *MD, 192679a502d462ef819e6175b58e255ca3f3391e7cfFariborz Jahanian const ObjCContainerDecl *CD); 193af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 194af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar /// GenerateObjCGetter - Synthesize an Objective-C property getter 195af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar /// function. 196fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian void GenerateObjCGetter(ObjCImplementationDecl *IMP, 197fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian const ObjCPropertyImplDecl *PID); 198af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 199af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar /// GenerateObjCSetter - Synthesize an Objective-C property setter 200af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar /// function for the given property. 201fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian void GenerateObjCSetter(ObjCImplementationDecl *IMP, 202fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian const ObjCPropertyImplDecl *PID); 203af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 204bd012ff1fa088181646a784f385b28867372d434Daniel Dunbar void GenerateCode(const FunctionDecl *FD, 205bd012ff1fa088181646a784f385b28867372d434Daniel Dunbar llvm::Function *Fn); 2067c086516f3cc9fba2733b1919973206c6ba4b171Daniel Dunbar void StartFunction(const Decl *D, QualType RetTy, 2077c086516f3cc9fba2733b1919973206c6ba4b171Daniel Dunbar llvm::Function *Fn, 2082284ac9ec80299fcdefae9a2787cf85105a0f203Daniel Dunbar const FunctionArgList &Args, 2092284ac9ec80299fcdefae9a2787cf85105a0f203Daniel Dunbar SourceLocation StartLoc); 210a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 2111c1d6074f5a0296dd273362655b1b8f9057289e3Daniel Dunbar /// EmitReturnBlock - Emit the unified return block, trying to avoid 2121c1d6074f5a0296dd273362655b1b8f9057289e3Daniel Dunbar /// its emission when possible. 2131c1d6074f5a0296dd273362655b1b8f9057289e3Daniel Dunbar void EmitReturnBlock(); 2141c1d6074f5a0296dd273362655b1b8f9057289e3Daniel Dunbar 215a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// FinishFunction - Complete IR generation of the current 216a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// function. It is legal to call this function even if there is no 217a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// current insertion point. 218af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar void FinishFunction(SourceLocation EndLoc=SourceLocation()); 21917b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar 22017b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar /// EmitFunctionProlog - Emit the target specific LLVM code to load 22117b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar /// the arguments for the given function. This is also responsible 22217b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar /// for naming the LLVM function arguments. 22388b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar void EmitFunctionProlog(const CGFunctionInfo &FI, 22488b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar llvm::Function *Fn, 22517b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar const FunctionArgList &Args); 22617b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar 22717b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar /// EmitFunctionEpilog - Emit the target specific LLVM code to 22817b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar /// return the given temporary. 22988b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar void EmitFunctionEpilog(const CGFunctionInfo &FI, llvm::Value *ReturnValue); 23017b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar 2318b1a343b6b360d63d5dc8a6beb841ce4414c1e00Daniel Dunbar const llvm::Type *ConvertTypeForMem(QualType T); 2325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const llvm::Type *ConvertType(QualType T); 233c8aa5f1f264fb230c38182adab944232bb160c2bChris Lattner 234b7ec246872b412f0e7bb9e93eacfd78cfa6adfb3Daniel Dunbar /// LoadObjCSelf - Load the value of self. This function is only 235b7ec246872b412f0e7bb9e93eacfd78cfa6adfb3Daniel Dunbar /// valid while generating code for an Objective-C method. 236c8aa5f1f264fb230c38182adab944232bb160c2bChris Lattner llvm::Value *LoadObjCSelf(); 23745012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian 23845012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian /// TypeOfSelfObject 23945012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian /// Return type of object that this self represents. 24045012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian QualType TypeOfSelfObject(); 2414111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner 2424111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner /// isObjCPointerType - Return true if the specificed AST type will map onto 2434111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner /// some Objective-C pointer type. 2444111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner static bool isObjCPointerType(QualType T); 2454111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner 2465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// hasAggregateLLVMType - Return true if the specified AST type will map into 2475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// an aggregate LLVM type or is void. 2485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool hasAggregateLLVMType(QualType T); 24955e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar 25055e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar /// createBasicBlock - Create an LLVM basic block. 25155e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar llvm::BasicBlock *createBasicBlock(const char *Name="", 25255e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar llvm::Function *Parent=0, 25355e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar llvm::BasicBlock *InsertBefore=0) { 25429ea6729155c759836be4b5453bee9ef8e1e97eeDaniel Dunbar#ifdef NDEBUG 25529ea6729155c759836be4b5453bee9ef8e1e97eeDaniel Dunbar return llvm::BasicBlock::Create("", Parent, InsertBefore); 25629ea6729155c759836be4b5453bee9ef8e1e97eeDaniel Dunbar#else 25755e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar return llvm::BasicBlock::Create(Name, Parent, InsertBefore); 25829ea6729155c759836be4b5453bee9ef8e1e97eeDaniel Dunbar#endif 25955e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar } 26055e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar 2615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getBasicBlockForLabel - Return the LLVM basicblock that the specified 2625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// label maps to. 2635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::BasicBlock *getBasicBlockForLabel(const LabelStmt *S); 2645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 265a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// EmitBlock - Emit the given block \arg BB and set it as the 266a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// insert point, adding a fall-through branch from the current 267a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// insert block if necessary. It is legal to call this function 268a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// even if there is no current insertion point. 269a0c21a8faa79e88ac432d116eca58f7a7217195dDaniel Dunbar /// 270a0c21a8faa79e88ac432d116eca58f7a7217195dDaniel Dunbar /// IsFinished - If true, indicates that the caller has finished 271a0c21a8faa79e88ac432d116eca58f7a7217195dDaniel Dunbar /// emitting branches to the given block and does not expect to emit 272a0c21a8faa79e88ac432d116eca58f7a7217195dDaniel Dunbar /// code into it. This means the block can be ignored if it is 273a0c21a8faa79e88ac432d116eca58f7a7217195dDaniel Dunbar /// unreachable. 274a0c21a8faa79e88ac432d116eca58f7a7217195dDaniel Dunbar void EmitBlock(llvm::BasicBlock *BB, bool IsFinished=false); 275824e3bd76b2e32db2ec6e4d2d113413e518d1c63Daniel Dunbar 276d57a871339c7c98d58d93108b806f59bdf4e13e2Daniel Dunbar /// EmitBranch - Emit a branch to the specified basic block from the 277d57a871339c7c98d58d93108b806f59bdf4e13e2Daniel Dunbar /// current insert block, taking care to avoid creation of branches 278a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// from dummy blocks. It is legal to call this function even if 279a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// there is no current insertion point. 2805e08ad3cc62ab94649959ae227a9a411a729bf49Daniel Dunbar /// 2815e08ad3cc62ab94649959ae227a9a411a729bf49Daniel Dunbar /// This function clears the current insertion point. The caller 2825e08ad3cc62ab94649959ae227a9a411a729bf49Daniel Dunbar /// should follow calls to this function with calls to Emit*Block 2835e08ad3cc62ab94649959ae227a9a411a729bf49Daniel Dunbar /// prior to generation new code. 284d57a871339c7c98d58d93108b806f59bdf4e13e2Daniel Dunbar void EmitBranch(llvm::BasicBlock *Block); 285d57a871339c7c98d58d93108b806f59bdf4e13e2Daniel Dunbar 286a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// HaveInsertPoint - True if an insertion point is defined. If not, 287a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// this indicates that the current code being emitted is 288a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// unreachable. 289a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar bool HaveInsertPoint() const { 290a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar return Builder.GetInsertBlock() != 0; 291a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar } 292a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 293a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// EnsureInsertPoint - Ensure that an insertion point is defined so 294a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// that emitted IR has a place to go. Note that by definition, if 295a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// this function creates a block then that block is unreachable; 296a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// callers may do better to detect when no insertion point is 297a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// defined and simply skip IR generation. 298a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar void EnsureInsertPoint() { 299a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar if (!HaveInsertPoint()) 300a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar EmitBlock(createBasicBlock()); 301a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar } 302dc5e8268292046114ffe02e48773572a91a310f1Chris Lattner 303488e993a135ce700b982bf099c3d6b856301d642Daniel Dunbar /// ErrorUnsupported - Print out an error that codegen doesn't support the 304dc5e8268292046114ffe02e48773572a91a310f1Chris Lattner /// specified stmt yet. 30590df4b6661968a84bf64baee489bb2f6d948fcc1Daniel Dunbar void ErrorUnsupported(const Stmt *S, const char *Type, 30690df4b6661968a84bf64baee489bb2f6d948fcc1Daniel Dunbar bool OmitOnError=false); 3075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 3095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Helpers 3105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 3115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// CreateTempAlloca - This creates a alloca and inserts it into the entry 3135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// block. 3145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::AllocaInst *CreateTempAlloca(const llvm::Type *Ty, 3155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *Name = "tmp"); 3165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EvaluateExprAsBool - Perform the usual unary conversions on the specified 3185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// expression and compare the result against zero, returning an Int1Ty value. 3195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::Value *EvaluateExprAsBool(const Expr *E); 3205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3219b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// EmitAnyExpr - Emit code to compute the specified expression which can have 3229b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// any type. The result is returned as an RValue struct. If this is an 3239b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// aggregate expression, the aggloc/agglocvolatile arguments indicate where 3249b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// the result should be returned. 3259b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner RValue EmitAnyExpr(const Expr *E, llvm::Value *AggLoc = 0, 3269b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner bool isAggLocVolatile = false); 327d9363c3a80168283b3da518b4e17f545a6246857Devang Patel 3284fd0aa5803357d8c72eeac2cae15e12649ea08feEli Friedman // EmitVAListRef - Emit a "reference" to a va_list; this is either the 3294fd0aa5803357d8c72eeac2cae15e12649ea08feEli Friedman // address or the value of the expression, depending on how va_list is 3304fd0aa5803357d8c72eeac2cae15e12649ea08feEli Friedman // defined. 3314fd0aa5803357d8c72eeac2cae15e12649ea08feEli Friedman llvm::Value *EmitVAListRef(const Expr *E); 3324fd0aa5803357d8c72eeac2cae15e12649ea08feEli Friedman 33346f45b9bec4a265ad8400a538e5ec3a5683617f1Daniel Dunbar /// EmitAnyExprToTemp - Similary to EmitAnyExpr(), however, the result 33446f45b9bec4a265ad8400a538e5ec3a5683617f1Daniel Dunbar /// will always be accessible even if no aggregate location is 33546f45b9bec4a265ad8400a538e5ec3a5683617f1Daniel Dunbar /// provided. 33646f45b9bec4a265ad8400a538e5ec3a5683617f1Daniel Dunbar RValue EmitAnyExprToTemp(const Expr *E, llvm::Value *AggLoc = 0, 33746f45b9bec4a265ad8400a538e5ec3a5683617f1Daniel Dunbar bool isAggLocVolatile = false); 33846f45b9bec4a265ad8400a538e5ec3a5683617f1Daniel Dunbar 3397482d12c345c6391f8956850545e2d4aa7701ce6Daniel Dunbar void EmitAggregateCopy(llvm::Value *DestPtr, llvm::Value *SrcPtr, 3407482d12c345c6391f8956850545e2d4aa7701ce6Daniel Dunbar QualType EltTy); 3417482d12c345c6391f8956850545e2d4aa7701ce6Daniel Dunbar 3427482d12c345c6391f8956850545e2d4aa7701ce6Daniel Dunbar void EmitAggregateClear(llvm::Value *DestPtr, QualType Ty); 3437482d12c345c6391f8956850545e2d4aa7701ce6Daniel Dunbar 34451b09f2c528c8460b5465c676173324e44176d62Devang Patel /// StartBlock - Start new block named N. If insert block is a dummy block 34551b09f2c528c8460b5465c676173324e44176d62Devang Patel /// then reuse it. 34651b09f2c528c8460b5465c676173324e44176d62Devang Patel void StartBlock(const char *N); 34751b09f2c528c8460b5465c676173324e44176d62Devang Patel 34888a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel /// getCGRecordLayout - Return record layout info. 34988a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel const CGRecordLayout *getCGRecordLayout(CodeGenTypes &CGT, QualType RTy); 350813733577d33ec56479667b49e1bff42dc6bba90Lauro Ramos Venancio 351813733577d33ec56479667b49e1bff42dc6bba90Lauro Ramos Venancio /// GetAddrOfStaticLocalVar - Return the address of a static local variable. 352248a753f6b670692523c99afaeb8fe98f7ae3ca7Steve Naroff llvm::Constant *GetAddrOfStaticLocalVar(const VarDecl *BVD); 3534f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman 354dde0a94120915fa925d1ffcdb997c7b44dc9fa21Anders Carlsson /// GetAddrOfLocalVar - Return the address of a local variable. 355dde0a94120915fa925d1ffcdb997c7b44dc9fa21Anders Carlsson llvm::Value *GetAddrOfLocalVar(const VarDecl *VD); 356dde0a94120915fa925d1ffcdb997c7b44dc9fa21Anders Carlsson 3574f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman /// getAccessedFieldNo - Given an encoded value and a result number, return 3584f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman /// the input field number being accessed. 3594f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman static unsigned getAccessedFieldNo(unsigned Idx, const llvm::Constant *Elts); 3604f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman 3610ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar unsigned GetIDForAddrOfLabel(const LabelStmt *L); 3620ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar 3633d8400d9a61aa4b63ff35e5cede405b32a41425eAnders Carlsson /// EmitMemSetToZero - Generate code to memset a value of the given type to 0; 3643d8400d9a61aa4b63ff35e5cede405b32a41425eAnders Carlsson void EmitMemSetToZero(llvm::Value *DestPtr, QualType Ty); 365ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson 366ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson // EmitVAArg - Generate code to get an argument from the passed in pointer 367ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson // and update it accordingly. The return value is a pointer to the argument. 368ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson // FIXME: We should be able to get rid of this method and use the va_arg 369ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson // instruction in LLVM instead once it works well enough. 370ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson llvm::Value *EmitVAArg(llvm::Value *VAListAddr, QualType Ty); 371f666b7780d04186521adcaedb0e15dfa4d5e6933Anders Carlsson 37260d35413662ebdcd1d31e34a8a7c665eb6977f1eAnders Carlsson // EmitVLASize - Generate code for any VLA size expressions that might occur 37360d35413662ebdcd1d31e34a8a7c665eb6977f1eAnders Carlsson // in a variably modified type. If Ty is a VLA, will return the value that 37460d35413662ebdcd1d31e34a8a7c665eb6977f1eAnders Carlsson // corresponds to the size in bytes of the VLA type. Will return 0 otherwise. 37560d35413662ebdcd1d31e34a8a7c665eb6977f1eAnders Carlsson llvm::Value *EmitVLASize(QualType Ty); 376f666b7780d04186521adcaedb0e15dfa4d5e6933Anders Carlsson 377dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson // GetVLASize - Returns an LLVM value that corresponds to the size in bytes 378dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson // of a variable length array type. 379dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson llvm::Value *GetVLASize(const VariableArrayType *); 380dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson 3815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 3825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Declaration Emission 3835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 3845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitDecl(const Decl &D); 386248a753f6b670692523c99afaeb8fe98f7ae3ca7Steve Naroff void EmitBlockVarDecl(const VarDecl &D); 387248a753f6b670692523c99afaeb8fe98f7ae3ca7Steve Naroff void EmitLocalBlockVarDecl(const VarDecl &D); 388248a753f6b670692523c99afaeb8fe98f7ae3ca7Steve Naroff void EmitStaticBlockVarDecl(const VarDecl &D); 389b7ec246872b412f0e7bb9e93eacfd78cfa6adfb3Daniel Dunbar 390b7ec246872b412f0e7bb9e93eacfd78cfa6adfb3Daniel Dunbar /// EmitParmDecl - Emit a ParmVarDecl or an ImplicitParamDecl. 391b7ec246872b412f0e7bb9e93eacfd78cfa6adfb3Daniel Dunbar void EmitParmDecl(const VarDecl &D, llvm::Value *Arg); 3925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 3945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Statement Emission 3955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 3965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3970912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar /// EmitStopPoint - Emit a debug stoppoint if we are emitting debug 3980912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar /// info. 3990912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar void EmitStopPoint(const Stmt *S); 4000912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar 401a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// EmitStmt - Emit the code for the statement \arg S. It is legal 402a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// to call this function even if there is no current insertion 403a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// point. 404a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// 405a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// This function may clear the current insertion point; callers 406a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// should use EnsureInsertPoint if they wish to subsequently 407a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// generate code without first calling EmitBlock, EmitBranch, or 408a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// EmitStmt. 4095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitStmt(const Stmt *S); 410a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 4110912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar /// EmitSimpleStmt - Try to emit a "simple" statement which does not 4120912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar /// necessarily require an insertion point or debug information; 4130912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar /// typically because the statement amounts to a jump or a container 4140912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar /// of other statements. 4150912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar /// 4160912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar /// \return True if the statement was handled. 4170912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar bool EmitSimpleStmt(const Stmt *S); 4180912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar 4199b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner RValue EmitCompoundStmt(const CompoundStmt &S, bool GetLast = false, 4209b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner llvm::Value *AggLoc = 0, bool isAggVol = false); 421a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 422a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// EmitLabel - Emit the block for the given label. It is legal 423a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// to call this function even if there is no current insertion 424a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// point. 42591d723da7b68be5245c3ac58aa2a36d04658cfb8Chris Lattner void EmitLabel(const LabelStmt &S); // helper for EmitLabelStmt. 426a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 4275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitLabelStmt(const LabelStmt &S); 4285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitGotoStmt(const GotoStmt &S); 4290ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar void EmitIndirectGotoStmt(const IndirectGotoStmt &S); 4305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitIfStmt(const IfStmt &S); 4315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitWhileStmt(const WhileStmt &S); 4325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitDoStmt(const DoStmt &S); 4335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitForStmt(const ForStmt &S); 4345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitReturnStmt(const ReturnStmt &S); 4355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitDeclStmt(const DeclStmt &S); 4360912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar void EmitBreakStmt(const BreakStmt &S); 4370912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar void EmitContinueStmt(const ContinueStmt &S); 43851b09f2c528c8460b5465c676173324e44176d62Devang Patel void EmitSwitchStmt(const SwitchStmt &S); 43951b09f2c528c8460b5465c676173324e44176d62Devang Patel void EmitDefaultStmt(const DefaultStmt &S); 44051b09f2c528c8460b5465c676173324e44176d62Devang Patel void EmitCaseStmt(const CaseStmt &S); 441c049e4f406a7f7179eba98659044a32508e53289Devang Patel void EmitCaseStmtRange(const CaseStmt &S); 442fb1aeb804c08d5288a923fb278161783e6abdc66Anders Carlsson void EmitAsmStmt(const AsmStmt &S); 443fb1aeb804c08d5288a923fb278161783e6abdc66Anders Carlsson 4443d8400d9a61aa4b63ff35e5cede405b32a41425eAnders Carlsson void EmitObjCForCollectionStmt(const ObjCForCollectionStmt &S); 44564d5d6c5903157c521af496479d06dc26032d718Anders Carlsson void EmitObjCAtTryStmt(const ObjCAtTryStmt &S); 44664d5d6c5903157c521af496479d06dc26032d718Anders Carlsson void EmitObjCAtThrowStmt(const ObjCAtThrowStmt &S); 44710cac6f7115b59a466bb8d2d51cdddeb38aadc37Chris Lattner void EmitObjCAtSynchronizedStmt(const ObjCAtSynchronizedStmt &S); 4483d8400d9a61aa4b63ff35e5cede405b32a41425eAnders Carlsson 4495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 4505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // LValue Expression Emission 4515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 4525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 45313e81737a433b23f8c662d10d1d57356122a8caaDaniel Dunbar /// GetUndefRValue - Get an appropriate 'undef' rvalue for the given type. 45413e81737a433b23f8c662d10d1d57356122a8caaDaniel Dunbar RValue GetUndefRValue(QualType Ty); 45513e81737a433b23f8c662d10d1d57356122a8caaDaniel Dunbar 456ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar /// EmitUnsupportedRValue - Emit a dummy r-value using the type of E 457ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar /// and issue an ErrorUnsupported style diagnostic (using the 458ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar /// provided Name). 459ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar RValue EmitUnsupportedRValue(const Expr *E, 460ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar const char *Name); 461ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar 4626ba82a4a4b295e54cf192c3e98b28f39990c6194Daniel Dunbar /// EmitUnsupportedLValue - Emit a dummy l-value using the type of E 4636ba82a4a4b295e54cf192c3e98b28f39990c6194Daniel Dunbar /// and issue an ErrorUnsupported style diagnostic (using the 4646ba82a4a4b295e54cf192c3e98b28f39990c6194Daniel Dunbar /// provided Name). 4656ba82a4a4b295e54cf192c3e98b28f39990c6194Daniel Dunbar LValue EmitUnsupportedLValue(const Expr *E, 4666ba82a4a4b295e54cf192c3e98b28f39990c6194Daniel Dunbar const char *Name); 4676ba82a4a4b295e54cf192c3e98b28f39990c6194Daniel Dunbar 4685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EmitLValue - Emit code to compute a designator that specifies the location 4695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// of the expression. 4705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 4715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// This can return one of two things: a simple address or a bitfield 4725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// reference. In either case, the LLVM Value* in the LValue structure is 4735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// guaranteed to be an LLVM pointer type. 4745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 4755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// If this returns a bitfield reference, nothing about the pointee type of 4765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// the LLVM value is known: For example, it may not be a pointer to an 4775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// integer. 4785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 4795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// If this returns a normal address, and if the lvalue's C type is fixed 4805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// size, this method guarantees that the returned pointer type will point to 4815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// an LLVM type of the same size of the lvalue's type. If the lvalue has a 4825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// variable length type, this is not possible. 4835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 4845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitLValue(const Expr *E); 4855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EmitLoadOfLValue - Given an expression that represents a value lvalue, 4875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// this method emits the address of the lvalue, then loads the result as an 4885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// rvalue, returning the rvalue. 4895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer RValue EmitLoadOfLValue(LValue V, QualType LVType); 490213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman RValue EmitLoadOfExtVectorElementLValue(LValue V, QualType LVType); 4913b8c22d93da1432b2d4cea779d14912645c93866Lauro Ramos Venancio RValue EmitLoadOfBitfieldLValue(LValue LV, QualType ExprType); 49285c59edda02df48fae8dc85049743319bc6e7e89Daniel Dunbar RValue EmitLoadOfPropertyRefLValue(LValue LV, QualType ExprType); 49343f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian RValue EmitLoadOfKVCRefLValue(LValue LV, QualType ExprType); 4945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 49534cdc86af5b0a54084a512a1b2643365b8f5bdd2Chris Lattner 4965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EmitStoreThroughLValue - Store the specified rvalue into the specified 4975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// lvalue, where both are guaranteed to the have the same type, and that type 4985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// is 'Ty'. 4995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitStoreThroughLValue(RValue Src, LValue Dst, QualType Ty); 500213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman void EmitStoreThroughExtVectorComponentLValue(RValue Src, LValue Dst, 501213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman QualType Ty); 50285c59edda02df48fae8dc85049743319bc6e7e89Daniel Dunbar void EmitStoreThroughPropertyRefLValue(RValue Src, LValue Dst, QualType Ty); 50343f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian void EmitStoreThroughKVCRefLValue(RValue Src, LValue Dst, QualType Ty); 504ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar 505ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar /// EmitStoreThroughLValue - Store Src into Dst with same 506ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar /// constraints as EmitStoreThroughLValue. 507ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar /// 508ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar /// \param Result [out] - If non-null, this will be set to a Value* 509ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar /// for the bit-field contents after the store, appropriate for use 510ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar /// as the result of an assignment to the bit-field. 511ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar void EmitStoreThroughBitfieldLValue(RValue Src, LValue Dst, QualType Ty, 512ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar llvm::Value **Result=0); 51322c940ee588a420cd2e6c8f68be2ac3cc80061ffChristopher Lamb 51422c940ee588a420cd2e6c8f68be2ac3cc80061ffChristopher Lamb // Note: only availabe for agg return types 51580e62c29fe21cd06c93eba6e72b7e32dca06fcf9Daniel Dunbar LValue EmitBinaryOperatorLValue(const BinaryOperator *E); 51680e62c29fe21cd06c93eba6e72b7e32dca06fcf9Daniel Dunbar // Note: only availabe for agg return types 51722c940ee588a420cd2e6c8f68be2ac3cc80061ffChristopher Lamb LValue EmitCallExprLValue(const CallExpr *E); 5185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitDeclRefLValue(const DeclRefExpr *E); 5195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitStringLiteralLValue(const StringLiteral *E); 520662b71ee82339c67f2c3689196e716c6560cf925Daniel Dunbar LValue EmitPredefinedFunctionName(unsigned Type); 521d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner LValue EmitPredefinedLValue(const PredefinedExpr *E); 5225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitUnaryOpLValue(const UnaryOperator *E); 5235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitArraySubscriptExpr(const ArraySubscriptExpr *E); 524213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman LValue EmitExtVectorElementExpr(const ExtVectorElementExpr *E); 525b84a06e68ffd71da22e3c75b6e4bbdba37816413Devang Patel LValue EmitMemberExpr(const MemberExpr *E); 52606e863f2902b8ba55b056308875c19f7ba3dab25Eli Friedman LValue EmitCompoundLiteralLValue(const CompoundLiteralExpr *E); 527472778eb4fce241721c563280886e98389bc7219Eli Friedman 52829e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar llvm::Value *EmitIvarOffset(ObjCInterfaceDecl *Interface, 52929e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar const ObjCIvarDecl *Ivar); 530472778eb4fce241721c563280886e98389bc7219Eli Friedman LValue EmitLValueForField(llvm::Value* Base, FieldDecl* Field, 5311e692ace08959399794363e77499b73da5494af9Eli Friedman bool isUnion, unsigned CVRQualifiers); 53245012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian LValue EmitLValueForIvar(QualType ObjectTy, 53345012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian llvm::Value* Base, const ObjCIvarDecl *Ivar, 534fd64bb635dc221baa19f81d5d2a084f7eb269f7fFariborz Jahanian const FieldDecl *Field, 53529e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar unsigned CVRQualifiers); 53629e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar 537fd64bb635dc221baa19f81d5d2a084f7eb269f7fFariborz Jahanian LValue EmitLValueForBitfield(llvm::Value* Base, FieldDecl* Field, 538598d3f61b6ca854e9d3c2f3359e24468502a61aaFariborz Jahanian unsigned CVRQualifiers); 539fd64bb635dc221baa19f81d5d2a084f7eb269f7fFariborz Jahanian 540e3a09e6ad09f8d1387ecaa008aaf85527909da0aArgyrios Kyrtzidis LValue EmitCXXConditionDeclLValue(const CXXConditionDeclExpr *E); 541e3a09e6ad09f8d1387ecaa008aaf85527909da0aArgyrios Kyrtzidis 5420a04d77bde7e3a661c2b41b60630d125d09ed6efDaniel Dunbar LValue EmitObjCMessageExprLValue(const ObjCMessageExpr *E); 543391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner LValue EmitObjCIvarRefLValue(const ObjCIvarRefExpr *E); 54485c59edda02df48fae8dc85049743319bc6e7e89Daniel Dunbar LValue EmitObjCPropertyRefLValue(const ObjCPropertyRefExpr *E); 54543f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian LValue EmitObjCKVCRefLValue(const ObjCKVCRefExpr *E); 546cd9b46e5442a3ef17f83f75177d8545cb5b3e2b9Douglas Gregor LValue EmitObjCSuperExpr(const ObjCSuperExpr *E); 5470a04d77bde7e3a661c2b41b60630d125d09ed6efDaniel Dunbar 5485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 549883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner // Scalar Expression Emission 5505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 5515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5527f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar /// EmitCall - Generate a call of the given function, expecting the 5537f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar /// given result type, and using the given argument list which 5547f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar /// specifies both the LLVM arguments and the types they were 5557f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar /// derived from. 55688b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar RValue EmitCall(const CGFunctionInfo &FnInfo, 55788b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar llvm::Value *Callee, 55819cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar const CallArgList &Args); 55919cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar 5605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer RValue EmitCallExpr(const CallExpr *E); 5615549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek 5625549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek RValue EmitCallExpr(Expr *FnExpr, CallExpr::const_arg_iterator ArgBeg, 5635549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek CallExpr::const_arg_iterator ArgEnd); 5645549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek 5655193b8a3e57c4f696161aeddfe8227c294c0a7feEli Friedman RValue EmitCallExpr(llvm::Value *Callee, QualType FnType, 5665549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek CallExpr::const_arg_iterator ArgBeg, 5675549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek CallExpr::const_arg_iterator ArgEnd); 5685549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek 5691e4d21ea5849637c49fd4222b09c4b5dedff7765Chris Lattner RValue EmitBuiltinExpr(unsigned BuiltinID, const CallExpr *E); 5705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 571f02e9ddf5efc75917af712b3c7f909581205f0a5Daniel Dunbar /// EmitTargetBuiltinExpr - Emit the given builtin call. Returns 0 572f02e9ddf5efc75917af712b3c7f909581205f0a5Daniel Dunbar /// if the call is unhandled by the current target. 573f02e9ddf5efc75917af712b3c7f909581205f0a5Daniel Dunbar llvm::Value *EmitTargetBuiltinExpr(unsigned BuiltinID, const CallExpr *E); 574f02e9ddf5efc75917af712b3c7f909581205f0a5Daniel Dunbar 575564f1de67d7ba43646b8740db86d6269e3dfbe0bAnders Carlsson llvm::Value *EmitX86BuiltinExpr(unsigned BuiltinID, const CallExpr *E); 576564f1de67d7ba43646b8740db86d6269e3dfbe0bAnders Carlsson llvm::Value *EmitPPCBuiltinExpr(unsigned BuiltinID, const CallExpr *E); 577564f1de67d7ba43646b8740db86d6269e3dfbe0bAnders Carlsson 578cc23acae84c6d5c37b4805edbcd95ee5d821c400Anders Carlsson llvm::Value *EmitShuffleVector(llvm::Value* V1, llvm::Value *V2, ...); 5794119d1aeca8016654d381ce079864058d1709571Nate Begeman llvm::Value *EmitVector(llvm::Value * const *Vals, unsigned NumVals, 5804119d1aeca8016654d381ce079864058d1709571Nate Begeman bool isSplat = false); 5816086bbd1799e22e75561c3d31dc9b923f0508fa5Anders Carlsson 582ed7c618f849e2541b1d0288c43154937652c5b15Daniel Dunbar llvm::Value *EmitObjCProtocolExpr(const ObjCProtocolExpr *E); 5837f02f721d48772e4eee4fccd8af4f800be1bbc1eChris Lattner llvm::Value *EmitObjCStringLiteral(const ObjCStringLiteral *E); 5848fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner llvm::Value *EmitObjCSelectorExpr(const ObjCSelectorExpr *E); 5858f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar RValue EmitObjCMessageExpr(const ObjCMessageExpr *E); 5865daf570d0ce027e18ed5f9d66e6b2a14a40b720dFariborz Jahanian RValue EmitObjCPropertyGet(const Expr *E); 58743f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian void EmitObjCPropertySet(const Expr *E, RValue Src); 5888fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner 5898fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner 590883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner //===--------------------------------------------------------------------===// 591bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattner // Expression Emission 592883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner //===--------------------------------------------------------------------===// 593bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattner 594bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattner // Expressions are broken into three classes: scalar, complex, aggregate. 595883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner 5967f02f721d48772e4eee4fccd8af4f800be1bbc1eChris Lattner /// EmitScalarExpr - Emit the computation of the specified expression of 5977f02f721d48772e4eee4fccd8af4f800be1bbc1eChris Lattner /// LLVM scalar type, returning the result. 5987f02f721d48772e4eee4fccd8af4f800be1bbc1eChris Lattner llvm::Value *EmitScalarExpr(const Expr *E); 5997f02f721d48772e4eee4fccd8af4f800be1bbc1eChris Lattner 6003707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner /// EmitScalarConversion - Emit a conversion from the specified type to the 6013707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner /// specified destination type, both of which are LLVM scalar types. 6023707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner llvm::Value *EmitScalarConversion(llvm::Value *Src, QualType SrcTy, 6033707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner QualType DstTy); 6043707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner 6054f1a7b380809b4ca19ad2daff61bc11cd1e979d8Chris Lattner /// EmitComplexToScalarConversion - Emit a conversion from the specified 6064f1a7b380809b4ca19ad2daff61bc11cd1e979d8Chris Lattner /// complex type to the specified destination type, where the destination 6074f1a7b380809b4ca19ad2daff61bc11cd1e979d8Chris Lattner /// type is an LLVM scalar type. 6084f1a7b380809b4ca19ad2daff61bc11cd1e979d8Chris Lattner llvm::Value *EmitComplexToScalarConversion(ComplexPairTy Src, QualType SrcTy, 6094f1a7b380809b4ca19ad2daff61bc11cd1e979d8Chris Lattner QualType DstTy); 6104f1a7b380809b4ca19ad2daff61bc11cd1e979d8Chris Lattner 6113707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner 612883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner /// EmitAggExpr - Emit the computation of the specified expression of 613883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner /// aggregate type. The result is computed into DestPtr. Note that if 614883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner /// DestPtr is null, the value of the aggregate expression is not needed. 615883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner void EmitAggExpr(const Expr *E, llvm::Value *DestPtr, bool VolatileDest); 616b6ef18a2b06d6760459e1756a61f79ff496cee19Chris Lattner 617b6ef18a2b06d6760459e1756a61f79ff496cee19Chris Lattner /// EmitComplexExpr - Emit the computation of the specified expression of 61823b1cdb0b5e089468bb8475b8ec9287af67b4b59Chris Lattner /// complex type, returning the result. 61958dee10ed2eee34035f62d1c2d32b3639e9182f8Chris Lattner ComplexPairTy EmitComplexExpr(const Expr *E); 62023b1cdb0b5e089468bb8475b8ec9287af67b4b59Chris Lattner 62123b1cdb0b5e089468bb8475b8ec9287af67b4b59Chris Lattner /// EmitComplexExprIntoAddr - Emit the computation of the specified expression 62223b1cdb0b5e089468bb8475b8ec9287af67b4b59Chris Lattner /// of complex type, storing into the specified Value*. 623190dbe203c2e892ac40f1786035c6c9be3f44a4cChris Lattner void EmitComplexExprIntoAddr(const Expr *E, llvm::Value *DestAddr, 624190dbe203c2e892ac40f1786035c6c9be3f44a4cChris Lattner bool DestIsVolatile); 6257f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar 6267f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar /// StoreComplexToAddr - Store a complex number into the specified address. 6277f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar void StoreComplexToAddr(ComplexPairTy V, llvm::Value *DestAddr, 6287f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar bool DestIsVolatile); 6299b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// LoadComplexFromAddr - Load a complex number from the specified address. 6309b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner ComplexPairTy LoadComplexFromAddr(llvm::Value *SrcAddr, bool SrcIsVolatile); 6312621fd1d6d3c5eadcae246859f62738645df7540Chris Lattner 6322621fd1d6d3c5eadcae246859f62738645df7540Chris Lattner /// GenerateStaticBlockVarDecl - return the the static 6332621fd1d6d3c5eadcae246859f62738645df7540Chris Lattner /// declaration of local variable. 63445206ecf708bf03b04db07c2476b9f862127a8b1Sanjiv Gupta llvm::GlobalValue * GenerateStaticBlockVarDecl(const VarDecl &D, 63545206ecf708bf03b04db07c2476b9f862127a8b1Sanjiv Gupta bool NoInit, 63645206ecf708bf03b04db07c2476b9f862127a8b1Sanjiv Gupta const char *Separator, 63745206ecf708bf03b04db07c2476b9f862127a8b1Sanjiv Gupta llvm::GlobalValue 63845206ecf708bf03b04db07c2476b9f862127a8b1Sanjiv Gupta ::LinkageTypes Linkage); 6390ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar 640ecb6b0e2c17c47ce06da601a78820940e7c6da73Sanjiv Gupta // GenerateStaticCXXBlockVarDecl - return the static declaration of 641e1b29efab32d02e114046d33cca242a88585bf8aAnders Carlsson // a local variable. Performs initialization of the variable if necessary. 642e1b29efab32d02e114046d33cca242a88585bf8aAnders Carlsson llvm::GlobalValue *GenerateStaticCXXBlockVarDecl(const VarDecl &D); 643e1b29efab32d02e114046d33cca242a88585bf8aAnders Carlsson 6440ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar //===--------------------------------------------------------------------===// 6450ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar // Internal Helpers 6460ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar //===--------------------------------------------------------------------===// 6470ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar 6480946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner /// ContainsLabel - Return true if the statement contains a label in it. If 6490946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner /// this statement is not executed normally, it not containing a label means 6500946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner /// that we can just remove the code. 6510946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner static bool ContainsLabel(const Stmt *S, bool IgnoreCaseStmts = false); 6520946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner 6534bc0455d826e9634b7a68c0d06146edd633c9453Daniel Dunbar /// ConstantFoldsToSimpleInteger - If the specified expression does not fold 65431a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// to a constant, or if it does but contains a label, return 0. If it 65531a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// constant folds to 'true' and does not contain a label, return 1, if it 65631a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// constant folds to 'false' and does not contain a label, return -1. 65731a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner int ConstantFoldsToSimpleInteger(const Expr *Cond); 65831a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner 65931a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// EmitBranchOnBoolExpr - Emit a branch on a boolean condition (e.g. for an 66031a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// if statement) to the specified blocks. Based on the condition, this might 66131a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// try to simplify the codegen of the conditional based on the branch. 66231a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// 6639bc47e29dce8f095be7a6d07dbb02a5a7a112949Chris Lattner void EmitBranchOnBoolExpr(const Expr *Cond, llvm::BasicBlock *TrueBlock, 6644bc0455d826e9634b7a68c0d06146edd633c9453Daniel Dunbar llvm::BasicBlock *FalseBlock); 66531a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattnerprivate: 6660946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner 6670ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar /// EmitIndirectSwitches - Emit code for all of the switch 6680ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar /// instructions in IndirectSwitches. 6690ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar void EmitIndirectSwitches(); 6705627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar 67129e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar void EmitReturnOfRValue(RValue RV, QualType Ty); 67229e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar 6735627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// ExpandTypeFromArgs - Reconstruct a structure of type \arg Ty 6745627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// from function arguments into \arg Dst. See ABIArgInfo::Expand. 6755627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// 6765627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// \param AI - The first function argument of the expansion. 6775627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// \return The argument following the last expanded function 6785627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// argument. 6795627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar llvm::Function::arg_iterator 6805627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar ExpandTypeFromArgs(QualType Ty, LValue Dst, 6815627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar llvm::Function::arg_iterator AI); 6825627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar 6835627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// ExpandTypeToArgs - Expand an RValue \arg Src, with the LLVM type 6845627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// for \arg Ty, into individual arguments on the provided vector 6855627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// \arg Args. See ABIArgInfo::Expand. 6865627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar void ExpandTypeToArgs(QualType Ty, RValue Src, 6875627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar llvm::SmallVector<llvm::Value*, 16> &Args); 688c8c7b187adcd989e01a9fba1ebead6c2abd770c9Anders Carlsson 689c8c7b187adcd989e01a9fba1ebead6c2abd770c9Anders Carlsson llvm::Value* EmitAsmInput(const AsmStmt &S, TargetInfo::ConstraintInfo Info, 690c8c7b187adcd989e01a9fba1ebead6c2abd770c9Anders Carlsson const Expr *InputExpr, std::string &ConstraintStr); 691c8c7b187adcd989e01a9fba1ebead6c2abd770c9Anders Carlsson 6925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 6935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace CodeGen 6945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace clang 6955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#endif 697