CodeGenFunction.h revision 273558fbd891a0872e620e0d3d109b92c1160d72
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 { 98190d00e1396214c77539c7095756b9ea38160463Anders Carlsson ObjCEHEntry(llvm::BasicBlock *fb, llvm::SwitchInst *fs, llvm::Value *dc) 99190d00e1396214c77539c7095756b9ea38160463Anders Carlsson : FinallyBlock(fb), FinallySwitch(fs), 100273558fbd891a0872e620e0d3d109b92c1160d72Anders Carlsson DestCode(dc) {} 10118ccc7776ad6288c5f630dc7967fb99d099c9cd9Daniel Dunbar 102898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar /// Entry point to the finally block. 103898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar llvm::BasicBlock *FinallyBlock; 104898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar 105898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar /// Switch instruction which runs at the end of the finally block 106898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar /// to forward jumps through the finally block. 107898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar llvm::SwitchInst *FinallySwitch; 108898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar 109898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar /// Variable holding the code for the destination of a jump 110898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar /// through the @finally block. 111898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar llvm::Value *DestCode; 11218ccc7776ad6288c5f630dc7967fb99d099c9cd9Daniel Dunbar }; 113898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar 114273558fbd891a0872e620e0d3d109b92c1160d72Anders Carlsson /// ObjCEHValueStack - Stack of exception objects being handled, 115273558fbd891a0872e620e0d3d109b92c1160d72Anders Carlsson /// during IR generation for a @catch block. 116273558fbd891a0872e620e0d3d109b92c1160d72Anders Carlsson llvm::SmallVector<llvm::Value*, 8> ObjCEHValueStack; 117273558fbd891a0872e620e0d3d109b92c1160d72Anders Carlsson 118898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar typedef llvm::SmallVector<ObjCEHEntry*, 8> ObjCEHStackType; 119898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar ObjCEHStackType ObjCEHStack; 120898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar 121898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar /// EmitJumpThroughFinally - Emit a branch from the current insert 122898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar /// point through the finally handling code for \arg Entry and then 123a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// on to \arg Dest. It is legal to call this function even if there 124a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// is no current insertion point. 125898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar /// 126898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar /// \param ExecuteTryExit - When true, the try_exit runtime function 127898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar /// should be called prior to executing the finally code. 128898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar void EmitJumpThroughFinally(ObjCEHEntry *Entry, llvm::BasicBlock *Dest, 129898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar bool ExecuteTryExit=true); 1305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1317f02f721d48772e4eee4fccd8af4f800be1bbc1eChris Lattnerprivate: 1320ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar /// LabelIDs - Track arbitrary ids assigned to labels for use in 1330ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar /// implementing the GCC address-of-label extension and indirect 1340ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar /// goto. IDs are assigned to labels inside getIDForAddrOfLabel(). 1350ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar std::map<const LabelStmt*, unsigned> LabelIDs; 1360ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar 1370ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar /// IndirectSwitches - Record the list of switches for indirect 1380ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar /// gotos. Emission of the actual switching code needs to be delayed 1390ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar /// until all AddrLabelExprs have been seen. 1400ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar std::vector<llvm::SwitchInst*> IndirectSwitches; 1410ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar 14236a2ada69fdb457b0e46d0ef452c150b360d8888Mike Stump /// LocalDeclMap - This keeps track of the LLVM allocas or globals for local 14336a2ada69fdb457b0e46d0ef452c150b360d8888Mike Stump /// C decls. 1445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::DenseMap<const Decl*, llvm::Value*> LocalDeclMap; 1455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// LabelMap - This keeps track of the LLVM basic block for each C label. 1475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::DenseMap<const LabelStmt*, llvm::BasicBlock*> LabelMap; 148da13870e99fe33934b2122f06528a5063f78ae4cChris Lattner 14972cac2ccce8058833f56358e3391e28a8ddeeaa4Mike Stump /// BreakContinuePush - Note a new break and continue level. This 15072cac2ccce8058833f56358e3391e28a8ddeeaa4Mike Stump /// must be called at the stack depth of the continue block. In 15172cac2ccce8058833f56358e3391e28a8ddeeaa4Mike Stump /// particular, this must not be called after the controlling 15272cac2ccce8058833f56358e3391e28a8ddeeaa4Mike Stump /// condition has possibly started a vla. 15336a2ada69fdb457b0e46d0ef452c150b360d8888Mike Stump void BreakContinuePush(llvm::BasicBlock *bb, llvm::BasicBlock *cb) { 15436a2ada69fdb457b0e46d0ef452c150b360d8888Mike Stump BreakContinueStack.push_back(BreakContinue(bb, cb, StackDepth, 15536a2ada69fdb457b0e46d0ef452c150b360d8888Mike Stump ObjCEHStack.size())); 15636a2ada69fdb457b0e46d0ef452c150b360d8888Mike Stump } 15736a2ada69fdb457b0e46d0ef452c150b360d8888Mike Stump 15836a2ada69fdb457b0e46d0ef452c150b360d8888Mike Stump /// BreakContinuePop - Note end of previous break and continue level. 15936a2ada69fdb457b0e46d0ef452c150b360d8888Mike Stump void BreakContinuePop() { 16036a2ada69fdb457b0e46d0ef452c150b360d8888Mike Stump BreakContinueStack.pop_back(); 16136a2ada69fdb457b0e46d0ef452c150b360d8888Mike Stump } 16236a2ada69fdb457b0e46d0ef452c150b360d8888Mike Stump 163da13870e99fe33934b2122f06528a5063f78ae4cChris Lattner // BreakContinueStack - This keeps track of where break and continue 16436a2ada69fdb457b0e46d0ef452c150b360d8888Mike Stump // statements should jump to, as well as the depth of the stack and the size 16536a2ada69fdb457b0e46d0ef452c150b360d8888Mike Stump // of the eh stack. 166da13870e99fe33934b2122f06528a5063f78ae4cChris Lattner struct BreakContinue { 16736a2ada69fdb457b0e46d0ef452c150b360d8888Mike Stump BreakContinue(llvm::BasicBlock *bb, llvm::BasicBlock *cb, 16836a2ada69fdb457b0e46d0ef452c150b360d8888Mike Stump llvm::Value *sd, size_t ehss) 16936a2ada69fdb457b0e46d0ef452c150b360d8888Mike Stump : BreakBlock(bb), ContinueBlock(cb), SaveStackDepth(sd), 17036a2ada69fdb457b0e46d0ef452c150b360d8888Mike Stump EHStackSize(ehss) {} 171da13870e99fe33934b2122f06528a5063f78ae4cChris Lattner 172da13870e99fe33934b2122f06528a5063f78ae4cChris Lattner llvm::BasicBlock *BreakBlock; 173da13870e99fe33934b2122f06528a5063f78ae4cChris Lattner llvm::BasicBlock *ContinueBlock; 17436a2ada69fdb457b0e46d0ef452c150b360d8888Mike Stump llvm::Value *SaveStackDepth; 175e21269bcb732afa70386fdd4c95d22bc2ed943b1Anders Carlsson size_t EHStackSize; 176da13870e99fe33934b2122f06528a5063f78ae4cChris Lattner }; 177da13870e99fe33934b2122f06528a5063f78ae4cChris Lattner llvm::SmallVector<BreakContinue, 8> BreakContinueStack; 17818ccc7776ad6288c5f630dc7967fb99d099c9cd9Daniel Dunbar 17980fd5f96e6805ac43aab99faabd5b4c8b19551b7Devang Patel /// SwitchInsn - This is nearest current switch instruction. It is null if 18080fd5f96e6805ac43aab99faabd5b4c8b19551b7Devang Patel /// if current context is not in a switch. 18151b09f2c528c8460b5465c676173324e44176d62Devang Patel llvm::SwitchInst *SwitchInsn; 18251b09f2c528c8460b5465c676173324e44176d62Devang Patel 18380fd5f96e6805ac43aab99faabd5b4c8b19551b7Devang Patel /// CaseRangeBlock - This block holds if condition check for last case 18480fd5f96e6805ac43aab99faabd5b4c8b19551b7Devang Patel /// statement range in current switch instruction. 185c049e4f406a7f7179eba98659044a32508e53289Devang Patel llvm::BasicBlock *CaseRangeBlock; 186c049e4f406a7f7179eba98659044a32508e53289Devang Patel 187dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson // VLASizeMap - This keeps track of the associated size for each VLA type 188dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson // FIXME: Maybe this could be a stack of maps that is pushed/popped as 189dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson // we enter/leave scopes. 190dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson llvm::DenseMap<const VariableArrayType*, llvm::Value*> VLASizeMap; 191dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson 19236a2ada69fdb457b0e46d0ef452c150b360d8888Mike Stump /// StackDepth - This keeps track of the stack depth. It is used to 19336a2ada69fdb457b0e46d0ef452c150b360d8888Mike Stump /// notice when control flow results in a change in stack depth and 19436a2ada69fdb457b0e46d0ef452c150b360d8888Mike Stump /// to arrange for the appropriate stack depth to be restored. 19536a2ada69fdb457b0e46d0ef452c150b360d8888Mike Stump llvm::Value *StackDepth; 19636a2ada69fdb457b0e46d0ef452c150b360d8888Mike Stump 19717d28a3e0b0efaba14534d0e6d6a307283d96b9fAnders Carlsson /// StackSaveValues - A stack(!) of stack save values. When a new scope is 19817d28a3e0b0efaba14534d0e6d6a307283d96b9fAnders Carlsson /// entered, a null is pushed on this stack. If a VLA is emitted, then 19917d28a3e0b0efaba14534d0e6d6a307283d96b9fAnders Carlsson /// the return value of llvm.stacksave() is stored at the top of this stack. 20017d28a3e0b0efaba14534d0e6d6a307283d96b9fAnders Carlsson llvm::SmallVector<llvm::Value*, 8> StackSaveValues; 20117d28a3e0b0efaba14534d0e6d6a307283d96b9fAnders Carlsson 20236a2ada69fdb457b0e46d0ef452c150b360d8888Mike Stump llvm::DenseMap<const LabelStmt*, llvm::Value *> StackDepthMap; 20336a2ada69fdb457b0e46d0ef452c150b360d8888Mike Stump 20436a2ada69fdb457b0e46d0ef452c150b360d8888Mike Stump /// EmitStackUpdate - Routine to adjust the stack to the depth the 20536a2ada69fdb457b0e46d0ef452c150b360d8888Mike Stump /// stack should be at by the time we transfer control flow to the 20636a2ada69fdb457b0e46d0ef452c150b360d8888Mike Stump /// label. 20736a2ada69fdb457b0e46d0ef452c150b360d8888Mike Stump void EmitStackUpdate(const LabelStmt &S); 20836a2ada69fdb457b0e46d0ef452c150b360d8888Mike Stump 2095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 2105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CodeGenFunction(CodeGenModule &cgm); 2115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ASTContext &getContext() const; 2135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 214391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner void GenerateObjCMethod(const ObjCMethodDecl *OMD); 215af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 216679a502d462ef819e6175b58e255ca3f3391e7cfFariborz Jahanian void StartObjCMethod(const ObjCMethodDecl *MD, 217679a502d462ef819e6175b58e255ca3f3391e7cfFariborz Jahanian const ObjCContainerDecl *CD); 218af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 219af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar /// GenerateObjCGetter - Synthesize an Objective-C property getter 220af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar /// function. 221fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian void GenerateObjCGetter(ObjCImplementationDecl *IMP, 222fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian const ObjCPropertyImplDecl *PID); 223af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 224af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar /// GenerateObjCSetter - Synthesize an Objective-C property setter 225af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar /// function for the given property. 226fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian void GenerateObjCSetter(ObjCImplementationDecl *IMP, 227fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian const ObjCPropertyImplDecl *PID); 228af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 229bd012ff1fa088181646a784f385b28867372d434Daniel Dunbar void GenerateCode(const FunctionDecl *FD, 230bd012ff1fa088181646a784f385b28867372d434Daniel Dunbar llvm::Function *Fn); 2317c086516f3cc9fba2733b1919973206c6ba4b171Daniel Dunbar void StartFunction(const Decl *D, QualType RetTy, 2327c086516f3cc9fba2733b1919973206c6ba4b171Daniel Dunbar llvm::Function *Fn, 2332284ac9ec80299fcdefae9a2787cf85105a0f203Daniel Dunbar const FunctionArgList &Args, 2342284ac9ec80299fcdefae9a2787cf85105a0f203Daniel Dunbar SourceLocation StartLoc); 235a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 2361c1d6074f5a0296dd273362655b1b8f9057289e3Daniel Dunbar /// EmitReturnBlock - Emit the unified return block, trying to avoid 2371c1d6074f5a0296dd273362655b1b8f9057289e3Daniel Dunbar /// its emission when possible. 2381c1d6074f5a0296dd273362655b1b8f9057289e3Daniel Dunbar void EmitReturnBlock(); 2391c1d6074f5a0296dd273362655b1b8f9057289e3Daniel Dunbar 240a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// FinishFunction - Complete IR generation of the current 241a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// function. It is legal to call this function even if there is no 242a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// current insertion point. 243af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar void FinishFunction(SourceLocation EndLoc=SourceLocation()); 24417b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar 24517b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar /// EmitFunctionProlog - Emit the target specific LLVM code to load 24617b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar /// the arguments for the given function. This is also responsible 24717b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar /// for naming the LLVM function arguments. 24888b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar void EmitFunctionProlog(const CGFunctionInfo &FI, 24988b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar llvm::Function *Fn, 25017b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar const FunctionArgList &Args); 25117b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar 25217b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar /// EmitFunctionEpilog - Emit the target specific LLVM code to 25317b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar /// return the given temporary. 25488b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar void EmitFunctionEpilog(const CGFunctionInfo &FI, llvm::Value *ReturnValue); 25517b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar 2568b1a343b6b360d63d5dc8a6beb841ce4414c1e00Daniel Dunbar const llvm::Type *ConvertTypeForMem(QualType T); 2575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const llvm::Type *ConvertType(QualType T); 258c8aa5f1f264fb230c38182adab944232bb160c2bChris Lattner 259b7ec246872b412f0e7bb9e93eacfd78cfa6adfb3Daniel Dunbar /// LoadObjCSelf - Load the value of self. This function is only 260b7ec246872b412f0e7bb9e93eacfd78cfa6adfb3Daniel Dunbar /// valid while generating code for an Objective-C method. 261c8aa5f1f264fb230c38182adab944232bb160c2bChris Lattner llvm::Value *LoadObjCSelf(); 26245012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian 26345012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian /// TypeOfSelfObject 26445012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian /// Return type of object that this self represents. 26545012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian QualType TypeOfSelfObject(); 2664111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner 2674111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner /// isObjCPointerType - Return true if the specificed AST type will map onto 2684111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner /// some Objective-C pointer type. 2694111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner static bool isObjCPointerType(QualType T); 2704111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner 2715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// hasAggregateLLVMType - Return true if the specified AST type will map into 2725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// an aggregate LLVM type or is void. 2735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool hasAggregateLLVMType(QualType T); 27455e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar 27555e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar /// createBasicBlock - Create an LLVM basic block. 27655e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar llvm::BasicBlock *createBasicBlock(const char *Name="", 27755e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar llvm::Function *Parent=0, 27855e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar llvm::BasicBlock *InsertBefore=0) { 27929ea6729155c759836be4b5453bee9ef8e1e97eeDaniel Dunbar#ifdef NDEBUG 28029ea6729155c759836be4b5453bee9ef8e1e97eeDaniel Dunbar return llvm::BasicBlock::Create("", Parent, InsertBefore); 28129ea6729155c759836be4b5453bee9ef8e1e97eeDaniel Dunbar#else 28255e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar return llvm::BasicBlock::Create(Name, Parent, InsertBefore); 28329ea6729155c759836be4b5453bee9ef8e1e97eeDaniel Dunbar#endif 28455e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar } 28555e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar 2865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getBasicBlockForLabel - Return the LLVM basicblock that the specified 2875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// label maps to. 2885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::BasicBlock *getBasicBlockForLabel(const LabelStmt *S); 2895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 290a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// EmitBlock - Emit the given block \arg BB and set it as the 291a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// insert point, adding a fall-through branch from the current 292a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// insert block if necessary. It is legal to call this function 293a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// even if there is no current insertion point. 294a0c21a8faa79e88ac432d116eca58f7a7217195dDaniel Dunbar /// 295a0c21a8faa79e88ac432d116eca58f7a7217195dDaniel Dunbar /// IsFinished - If true, indicates that the caller has finished 296a0c21a8faa79e88ac432d116eca58f7a7217195dDaniel Dunbar /// emitting branches to the given block and does not expect to emit 297a0c21a8faa79e88ac432d116eca58f7a7217195dDaniel Dunbar /// code into it. This means the block can be ignored if it is 298a0c21a8faa79e88ac432d116eca58f7a7217195dDaniel Dunbar /// unreachable. 299a0c21a8faa79e88ac432d116eca58f7a7217195dDaniel Dunbar void EmitBlock(llvm::BasicBlock *BB, bool IsFinished=false); 300824e3bd76b2e32db2ec6e4d2d113413e518d1c63Daniel Dunbar 301d57a871339c7c98d58d93108b806f59bdf4e13e2Daniel Dunbar /// EmitBranch - Emit a branch to the specified basic block from the 302d57a871339c7c98d58d93108b806f59bdf4e13e2Daniel Dunbar /// current insert block, taking care to avoid creation of branches 303a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// from dummy blocks. It is legal to call this function even if 304a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// there is no current insertion point. 3055e08ad3cc62ab94649959ae227a9a411a729bf49Daniel Dunbar /// 3065e08ad3cc62ab94649959ae227a9a411a729bf49Daniel Dunbar /// This function clears the current insertion point. The caller 3075e08ad3cc62ab94649959ae227a9a411a729bf49Daniel Dunbar /// should follow calls to this function with calls to Emit*Block 3085e08ad3cc62ab94649959ae227a9a411a729bf49Daniel Dunbar /// prior to generation new code. 309d57a871339c7c98d58d93108b806f59bdf4e13e2Daniel Dunbar void EmitBranch(llvm::BasicBlock *Block); 310d57a871339c7c98d58d93108b806f59bdf4e13e2Daniel Dunbar 311a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// HaveInsertPoint - True if an insertion point is defined. If not, 312a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// this indicates that the current code being emitted is 313a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// unreachable. 314a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar bool HaveInsertPoint() const { 315a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar return Builder.GetInsertBlock() != 0; 316a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar } 317a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 318a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// EnsureInsertPoint - Ensure that an insertion point is defined so 319a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// that emitted IR has a place to go. Note that by definition, if 320a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// this function creates a block then that block is unreachable; 321a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// callers may do better to detect when no insertion point is 322a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// defined and simply skip IR generation. 323a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar void EnsureInsertPoint() { 324a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar if (!HaveInsertPoint()) 325a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar EmitBlock(createBasicBlock()); 326a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar } 327dc5e8268292046114ffe02e48773572a91a310f1Chris Lattner 328488e993a135ce700b982bf099c3d6b856301d642Daniel Dunbar /// ErrorUnsupported - Print out an error that codegen doesn't support the 329dc5e8268292046114ffe02e48773572a91a310f1Chris Lattner /// specified stmt yet. 33090df4b6661968a84bf64baee489bb2f6d948fcc1Daniel Dunbar void ErrorUnsupported(const Stmt *S, const char *Type, 33190df4b6661968a84bf64baee489bb2f6d948fcc1Daniel Dunbar bool OmitOnError=false); 3325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 3345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Helpers 3355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 3365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// CreateTempAlloca - This creates a alloca and inserts it into the entry 3385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// block. 3395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::AllocaInst *CreateTempAlloca(const llvm::Type *Ty, 3405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *Name = "tmp"); 3415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EvaluateExprAsBool - Perform the usual unary conversions on the specified 3435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// expression and compare the result against zero, returning an Int1Ty value. 3445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::Value *EvaluateExprAsBool(const Expr *E); 3455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3469b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// EmitAnyExpr - Emit code to compute the specified expression which can have 3479b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// any type. The result is returned as an RValue struct. If this is an 3489b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// aggregate expression, the aggloc/agglocvolatile arguments indicate where 3499b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// the result should be returned. 3509b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner RValue EmitAnyExpr(const Expr *E, llvm::Value *AggLoc = 0, 3519b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner bool isAggLocVolatile = false); 352d9363c3a80168283b3da518b4e17f545a6246857Devang Patel 3534fd0aa5803357d8c72eeac2cae15e12649ea08feEli Friedman // EmitVAListRef - Emit a "reference" to a va_list; this is either the 3544fd0aa5803357d8c72eeac2cae15e12649ea08feEli Friedman // address or the value of the expression, depending on how va_list is 3554fd0aa5803357d8c72eeac2cae15e12649ea08feEli Friedman // defined. 3564fd0aa5803357d8c72eeac2cae15e12649ea08feEli Friedman llvm::Value *EmitVAListRef(const Expr *E); 3574fd0aa5803357d8c72eeac2cae15e12649ea08feEli Friedman 35846f45b9bec4a265ad8400a538e5ec3a5683617f1Daniel Dunbar /// EmitAnyExprToTemp - Similary to EmitAnyExpr(), however, the result 35946f45b9bec4a265ad8400a538e5ec3a5683617f1Daniel Dunbar /// will always be accessible even if no aggregate location is 36046f45b9bec4a265ad8400a538e5ec3a5683617f1Daniel Dunbar /// provided. 36146f45b9bec4a265ad8400a538e5ec3a5683617f1Daniel Dunbar RValue EmitAnyExprToTemp(const Expr *E, llvm::Value *AggLoc = 0, 36246f45b9bec4a265ad8400a538e5ec3a5683617f1Daniel Dunbar bool isAggLocVolatile = false); 36346f45b9bec4a265ad8400a538e5ec3a5683617f1Daniel Dunbar 3647482d12c345c6391f8956850545e2d4aa7701ce6Daniel Dunbar void EmitAggregateCopy(llvm::Value *DestPtr, llvm::Value *SrcPtr, 3657482d12c345c6391f8956850545e2d4aa7701ce6Daniel Dunbar QualType EltTy); 3667482d12c345c6391f8956850545e2d4aa7701ce6Daniel Dunbar 3677482d12c345c6391f8956850545e2d4aa7701ce6Daniel Dunbar void EmitAggregateClear(llvm::Value *DestPtr, QualType Ty); 3687482d12c345c6391f8956850545e2d4aa7701ce6Daniel Dunbar 36951b09f2c528c8460b5465c676173324e44176d62Devang Patel /// StartBlock - Start new block named N. If insert block is a dummy block 37051b09f2c528c8460b5465c676173324e44176d62Devang Patel /// then reuse it. 37151b09f2c528c8460b5465c676173324e44176d62Devang Patel void StartBlock(const char *N); 37251b09f2c528c8460b5465c676173324e44176d62Devang Patel 37388a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel /// getCGRecordLayout - Return record layout info. 37488a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel const CGRecordLayout *getCGRecordLayout(CodeGenTypes &CGT, QualType RTy); 375813733577d33ec56479667b49e1bff42dc6bba90Lauro Ramos Venancio 376813733577d33ec56479667b49e1bff42dc6bba90Lauro Ramos Venancio /// GetAddrOfStaticLocalVar - Return the address of a static local variable. 377248a753f6b670692523c99afaeb8fe98f7ae3ca7Steve Naroff llvm::Constant *GetAddrOfStaticLocalVar(const VarDecl *BVD); 3784f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman 379dde0a94120915fa925d1ffcdb997c7b44dc9fa21Anders Carlsson /// GetAddrOfLocalVar - Return the address of a local variable. 380dde0a94120915fa925d1ffcdb997c7b44dc9fa21Anders Carlsson llvm::Value *GetAddrOfLocalVar(const VarDecl *VD); 381dde0a94120915fa925d1ffcdb997c7b44dc9fa21Anders Carlsson 3824f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman /// getAccessedFieldNo - Given an encoded value and a result number, return 3834f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman /// the input field number being accessed. 3844f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman static unsigned getAccessedFieldNo(unsigned Idx, const llvm::Constant *Elts); 3854f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman 3860ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar unsigned GetIDForAddrOfLabel(const LabelStmt *L); 3870ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar 3883d8400d9a61aa4b63ff35e5cede405b32a41425eAnders Carlsson /// EmitMemSetToZero - Generate code to memset a value of the given type to 0; 3893d8400d9a61aa4b63ff35e5cede405b32a41425eAnders Carlsson void EmitMemSetToZero(llvm::Value *DestPtr, QualType Ty); 390ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson 391ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson // EmitVAArg - Generate code to get an argument from the passed in pointer 392ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson // and update it accordingly. The return value is a pointer to the argument. 393ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson // FIXME: We should be able to get rid of this method and use the va_arg 394ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson // instruction in LLVM instead once it works well enough. 395ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson llvm::Value *EmitVAArg(llvm::Value *VAListAddr, QualType Ty); 396f666b7780d04186521adcaedb0e15dfa4d5e6933Anders Carlsson 39760d35413662ebdcd1d31e34a8a7c665eb6977f1eAnders Carlsson // EmitVLASize - Generate code for any VLA size expressions that might occur 39860d35413662ebdcd1d31e34a8a7c665eb6977f1eAnders Carlsson // in a variably modified type. If Ty is a VLA, will return the value that 39960d35413662ebdcd1d31e34a8a7c665eb6977f1eAnders Carlsson // corresponds to the size in bytes of the VLA type. Will return 0 otherwise. 40060d35413662ebdcd1d31e34a8a7c665eb6977f1eAnders Carlsson llvm::Value *EmitVLASize(QualType Ty); 401f666b7780d04186521adcaedb0e15dfa4d5e6933Anders Carlsson 402dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson // GetVLASize - Returns an LLVM value that corresponds to the size in bytes 403dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson // of a variable length array type. 404dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson llvm::Value *GetVLASize(const VariableArrayType *); 405dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson 4065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 4075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Declaration Emission 4085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 4095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitDecl(const Decl &D); 411248a753f6b670692523c99afaeb8fe98f7ae3ca7Steve Naroff void EmitBlockVarDecl(const VarDecl &D); 412248a753f6b670692523c99afaeb8fe98f7ae3ca7Steve Naroff void EmitLocalBlockVarDecl(const VarDecl &D); 413248a753f6b670692523c99afaeb8fe98f7ae3ca7Steve Naroff void EmitStaticBlockVarDecl(const VarDecl &D); 414b7ec246872b412f0e7bb9e93eacfd78cfa6adfb3Daniel Dunbar 415b7ec246872b412f0e7bb9e93eacfd78cfa6adfb3Daniel Dunbar /// EmitParmDecl - Emit a ParmVarDecl or an ImplicitParamDecl. 416b7ec246872b412f0e7bb9e93eacfd78cfa6adfb3Daniel Dunbar void EmitParmDecl(const VarDecl &D, llvm::Value *Arg); 4175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 4195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Statement Emission 4205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 4215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4220912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar /// EmitStopPoint - Emit a debug stoppoint if we are emitting debug 4230912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar /// info. 4240912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar void EmitStopPoint(const Stmt *S); 4250912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar 426a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// EmitStmt - Emit the code for the statement \arg S. It is legal 427a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// to call this function even if there is no current insertion 428a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// point. 429a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// 430a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// This function may clear the current insertion point; callers 431a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// should use EnsureInsertPoint if they wish to subsequently 432a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// generate code without first calling EmitBlock, EmitBranch, or 433a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// EmitStmt. 4345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitStmt(const Stmt *S); 435a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 4360912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar /// EmitSimpleStmt - Try to emit a "simple" statement which does not 4370912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar /// necessarily require an insertion point or debug information; 4380912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar /// typically because the statement amounts to a jump or a container 4390912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar /// of other statements. 4400912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar /// 4410912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar /// \return True if the statement was handled. 4420912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar bool EmitSimpleStmt(const Stmt *S); 4430912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar 4449b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner RValue EmitCompoundStmt(const CompoundStmt &S, bool GetLast = false, 4459b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner llvm::Value *AggLoc = 0, bool isAggVol = false); 446a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 447a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// EmitLabel - Emit the block for the given label. It is legal 448a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// to call this function even if there is no current insertion 449a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar /// point. 45091d723da7b68be5245c3ac58aa2a36d04658cfb8Chris Lattner void EmitLabel(const LabelStmt &S); // helper for EmitLabelStmt. 451a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 4525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitLabelStmt(const LabelStmt &S); 4535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitGotoStmt(const GotoStmt &S); 4540ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar void EmitIndirectGotoStmt(const IndirectGotoStmt &S); 4555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitIfStmt(const IfStmt &S); 4565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitWhileStmt(const WhileStmt &S); 4575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitDoStmt(const DoStmt &S); 4585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitForStmt(const ForStmt &S); 4595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitReturnStmt(const ReturnStmt &S); 4605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitDeclStmt(const DeclStmt &S); 4610912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar void EmitBreakStmt(const BreakStmt &S); 4620912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar void EmitContinueStmt(const ContinueStmt &S); 46351b09f2c528c8460b5465c676173324e44176d62Devang Patel void EmitSwitchStmt(const SwitchStmt &S); 46451b09f2c528c8460b5465c676173324e44176d62Devang Patel void EmitDefaultStmt(const DefaultStmt &S); 46551b09f2c528c8460b5465c676173324e44176d62Devang Patel void EmitCaseStmt(const CaseStmt &S); 466c049e4f406a7f7179eba98659044a32508e53289Devang Patel void EmitCaseStmtRange(const CaseStmt &S); 467fb1aeb804c08d5288a923fb278161783e6abdc66Anders Carlsson void EmitAsmStmt(const AsmStmt &S); 468fb1aeb804c08d5288a923fb278161783e6abdc66Anders Carlsson 4693d8400d9a61aa4b63ff35e5cede405b32a41425eAnders Carlsson void EmitObjCForCollectionStmt(const ObjCForCollectionStmt &S); 47064d5d6c5903157c521af496479d06dc26032d718Anders Carlsson void EmitObjCAtTryStmt(const ObjCAtTryStmt &S); 47164d5d6c5903157c521af496479d06dc26032d718Anders Carlsson void EmitObjCAtThrowStmt(const ObjCAtThrowStmt &S); 47210cac6f7115b59a466bb8d2d51cdddeb38aadc37Chris Lattner void EmitObjCAtSynchronizedStmt(const ObjCAtSynchronizedStmt &S); 4733d8400d9a61aa4b63ff35e5cede405b32a41425eAnders Carlsson 4745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 4755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // LValue Expression Emission 4765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 4775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 47813e81737a433b23f8c662d10d1d57356122a8caaDaniel Dunbar /// GetUndefRValue - Get an appropriate 'undef' rvalue for the given type. 47913e81737a433b23f8c662d10d1d57356122a8caaDaniel Dunbar RValue GetUndefRValue(QualType Ty); 48013e81737a433b23f8c662d10d1d57356122a8caaDaniel Dunbar 481ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar /// EmitUnsupportedRValue - Emit a dummy r-value using the type of E 482ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar /// and issue an ErrorUnsupported style diagnostic (using the 483ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar /// provided Name). 484ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar RValue EmitUnsupportedRValue(const Expr *E, 485ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar const char *Name); 486ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar 4876ba82a4a4b295e54cf192c3e98b28f39990c6194Daniel Dunbar /// EmitUnsupportedLValue - Emit a dummy l-value using the type of E 4886ba82a4a4b295e54cf192c3e98b28f39990c6194Daniel Dunbar /// and issue an ErrorUnsupported style diagnostic (using the 4896ba82a4a4b295e54cf192c3e98b28f39990c6194Daniel Dunbar /// provided Name). 4906ba82a4a4b295e54cf192c3e98b28f39990c6194Daniel Dunbar LValue EmitUnsupportedLValue(const Expr *E, 4916ba82a4a4b295e54cf192c3e98b28f39990c6194Daniel Dunbar const char *Name); 4926ba82a4a4b295e54cf192c3e98b28f39990c6194Daniel Dunbar 4935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EmitLValue - Emit code to compute a designator that specifies the location 4945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// of the expression. 4955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 4965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// This can return one of two things: a simple address or a bitfield 4975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// reference. In either case, the LLVM Value* in the LValue structure is 4985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// guaranteed to be an LLVM pointer type. 4995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 5005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// If this returns a bitfield reference, nothing about the pointee type of 5015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// the LLVM value is known: For example, it may not be a pointer to an 5025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// integer. 5035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 5045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// If this returns a normal address, and if the lvalue's C type is fixed 5055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// size, this method guarantees that the returned pointer type will point to 5065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// an LLVM type of the same size of the lvalue's type. If the lvalue has a 5075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// variable length type, this is not possible. 5085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 5095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitLValue(const Expr *E); 5105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EmitLoadOfLValue - Given an expression that represents a value lvalue, 5125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// this method emits the address of the lvalue, then loads the result as an 5135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// rvalue, returning the rvalue. 5145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer RValue EmitLoadOfLValue(LValue V, QualType LVType); 515213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman RValue EmitLoadOfExtVectorElementLValue(LValue V, QualType LVType); 5163b8c22d93da1432b2d4cea779d14912645c93866Lauro Ramos Venancio RValue EmitLoadOfBitfieldLValue(LValue LV, QualType ExprType); 51785c59edda02df48fae8dc85049743319bc6e7e89Daniel Dunbar RValue EmitLoadOfPropertyRefLValue(LValue LV, QualType ExprType); 51843f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian RValue EmitLoadOfKVCRefLValue(LValue LV, QualType ExprType); 5195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 52034cdc86af5b0a54084a512a1b2643365b8f5bdd2Chris Lattner 5215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EmitStoreThroughLValue - Store the specified rvalue into the specified 5225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// lvalue, where both are guaranteed to the have the same type, and that type 5235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// is 'Ty'. 5245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitStoreThroughLValue(RValue Src, LValue Dst, QualType Ty); 525213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman void EmitStoreThroughExtVectorComponentLValue(RValue Src, LValue Dst, 526213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman QualType Ty); 52785c59edda02df48fae8dc85049743319bc6e7e89Daniel Dunbar void EmitStoreThroughPropertyRefLValue(RValue Src, LValue Dst, QualType Ty); 52843f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian void EmitStoreThroughKVCRefLValue(RValue Src, LValue Dst, QualType Ty); 529ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar 530ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar /// EmitStoreThroughLValue - Store Src into Dst with same 531ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar /// constraints as EmitStoreThroughLValue. 532ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar /// 533ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar /// \param Result [out] - If non-null, this will be set to a Value* 534ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar /// for the bit-field contents after the store, appropriate for use 535ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar /// as the result of an assignment to the bit-field. 536ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar void EmitStoreThroughBitfieldLValue(RValue Src, LValue Dst, QualType Ty, 537ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar llvm::Value **Result=0); 53822c940ee588a420cd2e6c8f68be2ac3cc80061ffChristopher Lamb 53922c940ee588a420cd2e6c8f68be2ac3cc80061ffChristopher Lamb // Note: only availabe for agg return types 54080e62c29fe21cd06c93eba6e72b7e32dca06fcf9Daniel Dunbar LValue EmitBinaryOperatorLValue(const BinaryOperator *E); 54180e62c29fe21cd06c93eba6e72b7e32dca06fcf9Daniel Dunbar // Note: only availabe for agg return types 54222c940ee588a420cd2e6c8f68be2ac3cc80061ffChristopher Lamb LValue EmitCallExprLValue(const CallExpr *E); 5435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitDeclRefLValue(const DeclRefExpr *E); 5445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitStringLiteralLValue(const StringLiteral *E); 545662b71ee82339c67f2c3689196e716c6560cf925Daniel Dunbar LValue EmitPredefinedFunctionName(unsigned Type); 546d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner LValue EmitPredefinedLValue(const PredefinedExpr *E); 5475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitUnaryOpLValue(const UnaryOperator *E); 5485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitArraySubscriptExpr(const ArraySubscriptExpr *E); 549213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman LValue EmitExtVectorElementExpr(const ExtVectorElementExpr *E); 550b84a06e68ffd71da22e3c75b6e4bbdba37816413Devang Patel LValue EmitMemberExpr(const MemberExpr *E); 55106e863f2902b8ba55b056308875c19f7ba3dab25Eli Friedman LValue EmitCompoundLiteralLValue(const CompoundLiteralExpr *E); 552472778eb4fce241721c563280886e98389bc7219Eli Friedman 55329e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar llvm::Value *EmitIvarOffset(ObjCInterfaceDecl *Interface, 55429e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar const ObjCIvarDecl *Ivar); 555472778eb4fce241721c563280886e98389bc7219Eli Friedman LValue EmitLValueForField(llvm::Value* Base, FieldDecl* Field, 5561e692ace08959399794363e77499b73da5494af9Eli Friedman bool isUnion, unsigned CVRQualifiers); 55745012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian LValue EmitLValueForIvar(QualType ObjectTy, 55845012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian llvm::Value* Base, const ObjCIvarDecl *Ivar, 559fd64bb635dc221baa19f81d5d2a084f7eb269f7fFariborz Jahanian const FieldDecl *Field, 56029e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar unsigned CVRQualifiers); 56129e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar 562fd64bb635dc221baa19f81d5d2a084f7eb269f7fFariborz Jahanian LValue EmitLValueForBitfield(llvm::Value* Base, FieldDecl* Field, 563598d3f61b6ca854e9d3c2f3359e24468502a61aaFariborz Jahanian unsigned CVRQualifiers); 564fd64bb635dc221baa19f81d5d2a084f7eb269f7fFariborz Jahanian 565e3a09e6ad09f8d1387ecaa008aaf85527909da0aArgyrios Kyrtzidis LValue EmitCXXConditionDeclLValue(const CXXConditionDeclExpr *E); 566e3a09e6ad09f8d1387ecaa008aaf85527909da0aArgyrios Kyrtzidis 5670a04d77bde7e3a661c2b41b60630d125d09ed6efDaniel Dunbar LValue EmitObjCMessageExprLValue(const ObjCMessageExpr *E); 568391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner LValue EmitObjCIvarRefLValue(const ObjCIvarRefExpr *E); 56985c59edda02df48fae8dc85049743319bc6e7e89Daniel Dunbar LValue EmitObjCPropertyRefLValue(const ObjCPropertyRefExpr *E); 57043f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian LValue EmitObjCKVCRefLValue(const ObjCKVCRefExpr *E); 571cd9b46e5442a3ef17f83f75177d8545cb5b3e2b9Douglas Gregor LValue EmitObjCSuperExpr(const ObjCSuperExpr *E); 5720a04d77bde7e3a661c2b41b60630d125d09ed6efDaniel Dunbar 5735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 574883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner // Scalar Expression Emission 5755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 5765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5777f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar /// EmitCall - Generate a call of the given function, expecting the 5787f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar /// given result type, and using the given argument list which 5797f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar /// specifies both the LLVM arguments and the types they were 5807f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar /// derived from. 58188b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar RValue EmitCall(const CGFunctionInfo &FnInfo, 58288b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar llvm::Value *Callee, 58319cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar const CallArgList &Args); 58419cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar 5855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer RValue EmitCallExpr(const CallExpr *E); 5865549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek 5875549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek RValue EmitCallExpr(Expr *FnExpr, CallExpr::const_arg_iterator ArgBeg, 5885549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek CallExpr::const_arg_iterator ArgEnd); 5895549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek 5905193b8a3e57c4f696161aeddfe8227c294c0a7feEli Friedman RValue EmitCallExpr(llvm::Value *Callee, QualType FnType, 5915549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek CallExpr::const_arg_iterator ArgBeg, 5925549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek CallExpr::const_arg_iterator ArgEnd); 5935549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek 5941e4d21ea5849637c49fd4222b09c4b5dedff7765Chris Lattner RValue EmitBuiltinExpr(unsigned BuiltinID, const CallExpr *E); 5955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 596f02e9ddf5efc75917af712b3c7f909581205f0a5Daniel Dunbar /// EmitTargetBuiltinExpr - Emit the given builtin call. Returns 0 597f02e9ddf5efc75917af712b3c7f909581205f0a5Daniel Dunbar /// if the call is unhandled by the current target. 598f02e9ddf5efc75917af712b3c7f909581205f0a5Daniel Dunbar llvm::Value *EmitTargetBuiltinExpr(unsigned BuiltinID, const CallExpr *E); 599f02e9ddf5efc75917af712b3c7f909581205f0a5Daniel Dunbar 600564f1de67d7ba43646b8740db86d6269e3dfbe0bAnders Carlsson llvm::Value *EmitX86BuiltinExpr(unsigned BuiltinID, const CallExpr *E); 601564f1de67d7ba43646b8740db86d6269e3dfbe0bAnders Carlsson llvm::Value *EmitPPCBuiltinExpr(unsigned BuiltinID, const CallExpr *E); 602564f1de67d7ba43646b8740db86d6269e3dfbe0bAnders Carlsson 603cc23acae84c6d5c37b4805edbcd95ee5d821c400Anders Carlsson llvm::Value *EmitShuffleVector(llvm::Value* V1, llvm::Value *V2, ...); 6044119d1aeca8016654d381ce079864058d1709571Nate Begeman llvm::Value *EmitVector(llvm::Value * const *Vals, unsigned NumVals, 6054119d1aeca8016654d381ce079864058d1709571Nate Begeman bool isSplat = false); 6066086bbd1799e22e75561c3d31dc9b923f0508fa5Anders Carlsson 607ed7c618f849e2541b1d0288c43154937652c5b15Daniel Dunbar llvm::Value *EmitObjCProtocolExpr(const ObjCProtocolExpr *E); 6087f02f721d48772e4eee4fccd8af4f800be1bbc1eChris Lattner llvm::Value *EmitObjCStringLiteral(const ObjCStringLiteral *E); 6098fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner llvm::Value *EmitObjCSelectorExpr(const ObjCSelectorExpr *E); 6108f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar RValue EmitObjCMessageExpr(const ObjCMessageExpr *E); 6115daf570d0ce027e18ed5f9d66e6b2a14a40b720dFariborz Jahanian RValue EmitObjCPropertyGet(const Expr *E); 61243f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian void EmitObjCPropertySet(const Expr *E, RValue Src); 6138fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner 6148fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner 615883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner //===--------------------------------------------------------------------===// 616bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattner // Expression Emission 617883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner //===--------------------------------------------------------------------===// 618bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattner 619bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattner // Expressions are broken into three classes: scalar, complex, aggregate. 620883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner 6217f02f721d48772e4eee4fccd8af4f800be1bbc1eChris Lattner /// EmitScalarExpr - Emit the computation of the specified expression of 6227f02f721d48772e4eee4fccd8af4f800be1bbc1eChris Lattner /// LLVM scalar type, returning the result. 6237f02f721d48772e4eee4fccd8af4f800be1bbc1eChris Lattner llvm::Value *EmitScalarExpr(const Expr *E); 6247f02f721d48772e4eee4fccd8af4f800be1bbc1eChris Lattner 6253707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner /// EmitScalarConversion - Emit a conversion from the specified type to the 6263707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner /// specified destination type, both of which are LLVM scalar types. 6273707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner llvm::Value *EmitScalarConversion(llvm::Value *Src, QualType SrcTy, 6283707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner QualType DstTy); 6293707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner 6304f1a7b380809b4ca19ad2daff61bc11cd1e979d8Chris Lattner /// EmitComplexToScalarConversion - Emit a conversion from the specified 6314f1a7b380809b4ca19ad2daff61bc11cd1e979d8Chris Lattner /// complex type to the specified destination type, where the destination 6324f1a7b380809b4ca19ad2daff61bc11cd1e979d8Chris Lattner /// type is an LLVM scalar type. 6334f1a7b380809b4ca19ad2daff61bc11cd1e979d8Chris Lattner llvm::Value *EmitComplexToScalarConversion(ComplexPairTy Src, QualType SrcTy, 6344f1a7b380809b4ca19ad2daff61bc11cd1e979d8Chris Lattner QualType DstTy); 6354f1a7b380809b4ca19ad2daff61bc11cd1e979d8Chris Lattner 6363707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner 637883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner /// EmitAggExpr - Emit the computation of the specified expression of 638883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner /// aggregate type. The result is computed into DestPtr. Note that if 639883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner /// DestPtr is null, the value of the aggregate expression is not needed. 640883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner void EmitAggExpr(const Expr *E, llvm::Value *DestPtr, bool VolatileDest); 641b6ef18a2b06d6760459e1756a61f79ff496cee19Chris Lattner 642b6ef18a2b06d6760459e1756a61f79ff496cee19Chris Lattner /// EmitComplexExpr - Emit the computation of the specified expression of 64323b1cdb0b5e089468bb8475b8ec9287af67b4b59Chris Lattner /// complex type, returning the result. 64458dee10ed2eee34035f62d1c2d32b3639e9182f8Chris Lattner ComplexPairTy EmitComplexExpr(const Expr *E); 64523b1cdb0b5e089468bb8475b8ec9287af67b4b59Chris Lattner 64623b1cdb0b5e089468bb8475b8ec9287af67b4b59Chris Lattner /// EmitComplexExprIntoAddr - Emit the computation of the specified expression 64723b1cdb0b5e089468bb8475b8ec9287af67b4b59Chris Lattner /// of complex type, storing into the specified Value*. 648190dbe203c2e892ac40f1786035c6c9be3f44a4cChris Lattner void EmitComplexExprIntoAddr(const Expr *E, llvm::Value *DestAddr, 649190dbe203c2e892ac40f1786035c6c9be3f44a4cChris Lattner bool DestIsVolatile); 6507f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar 6517f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar /// StoreComplexToAddr - Store a complex number into the specified address. 6527f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar void StoreComplexToAddr(ComplexPairTy V, llvm::Value *DestAddr, 6537f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar bool DestIsVolatile); 6549b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// LoadComplexFromAddr - Load a complex number from the specified address. 6559b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner ComplexPairTy LoadComplexFromAddr(llvm::Value *SrcAddr, bool SrcIsVolatile); 6562621fd1d6d3c5eadcae246859f62738645df7540Chris Lattner 6572621fd1d6d3c5eadcae246859f62738645df7540Chris Lattner /// GenerateStaticBlockVarDecl - return the the static 6582621fd1d6d3c5eadcae246859f62738645df7540Chris Lattner /// declaration of local variable. 65945206ecf708bf03b04db07c2476b9f862127a8b1Sanjiv Gupta llvm::GlobalValue * GenerateStaticBlockVarDecl(const VarDecl &D, 66045206ecf708bf03b04db07c2476b9f862127a8b1Sanjiv Gupta bool NoInit, 66145206ecf708bf03b04db07c2476b9f862127a8b1Sanjiv Gupta const char *Separator, 66245206ecf708bf03b04db07c2476b9f862127a8b1Sanjiv Gupta llvm::GlobalValue 66345206ecf708bf03b04db07c2476b9f862127a8b1Sanjiv Gupta ::LinkageTypes Linkage); 6640ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar 665ecb6b0e2c17c47ce06da601a78820940e7c6da73Sanjiv Gupta // GenerateStaticCXXBlockVarDecl - return the static declaration of 666e1b29efab32d02e114046d33cca242a88585bf8aAnders Carlsson // a local variable. Performs initialization of the variable if necessary. 667e1b29efab32d02e114046d33cca242a88585bf8aAnders Carlsson llvm::GlobalValue *GenerateStaticCXXBlockVarDecl(const VarDecl &D); 668e1b29efab32d02e114046d33cca242a88585bf8aAnders Carlsson 6690ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar //===--------------------------------------------------------------------===// 6700ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar // Internal Helpers 6710ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar //===--------------------------------------------------------------------===// 6720ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar 6730946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner /// ContainsLabel - Return true if the statement contains a label in it. If 6740946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner /// this statement is not executed normally, it not containing a label means 6750946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner /// that we can just remove the code. 6760946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner static bool ContainsLabel(const Stmt *S, bool IgnoreCaseStmts = false); 6770946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner 6784bc0455d826e9634b7a68c0d06146edd633c9453Daniel Dunbar /// ConstantFoldsToSimpleInteger - If the specified expression does not fold 67931a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// to a constant, or if it does but contains a label, return 0. If it 68031a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// constant folds to 'true' and does not contain a label, return 1, if it 68131a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// constant folds to 'false' and does not contain a label, return -1. 68231a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner int ConstantFoldsToSimpleInteger(const Expr *Cond); 68331a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner 68431a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// EmitBranchOnBoolExpr - Emit a branch on a boolean condition (e.g. for an 68531a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// if statement) to the specified blocks. Based on the condition, this might 68631a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// try to simplify the codegen of the conditional based on the branch. 68731a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// 6889bc47e29dce8f095be7a6d07dbb02a5a7a112949Chris Lattner void EmitBranchOnBoolExpr(const Expr *Cond, llvm::BasicBlock *TrueBlock, 6894bc0455d826e9634b7a68c0d06146edd633c9453Daniel Dunbar llvm::BasicBlock *FalseBlock); 69031a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattnerprivate: 6910946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner 6920ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar /// EmitIndirectSwitches - Emit code for all of the switch 6930ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar /// instructions in IndirectSwitches. 6940ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar void EmitIndirectSwitches(); 6955627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar 69629e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar void EmitReturnOfRValue(RValue RV, QualType Ty); 69729e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar 6985627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// ExpandTypeFromArgs - Reconstruct a structure of type \arg Ty 6995627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// from function arguments into \arg Dst. See ABIArgInfo::Expand. 7005627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// 7015627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// \param AI - The first function argument of the expansion. 7025627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// \return The argument following the last expanded function 7035627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// argument. 7045627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar llvm::Function::arg_iterator 7055627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar ExpandTypeFromArgs(QualType Ty, LValue Dst, 7065627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar llvm::Function::arg_iterator AI); 7075627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar 7085627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// ExpandTypeToArgs - Expand an RValue \arg Src, with the LLVM type 7095627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// for \arg Ty, into individual arguments on the provided vector 7105627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// \arg Args. See ABIArgInfo::Expand. 7115627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar void ExpandTypeToArgs(QualType Ty, RValue Src, 7125627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar llvm::SmallVector<llvm::Value*, 16> &Args); 713c8c7b187adcd989e01a9fba1ebead6c2abd770c9Anders Carlsson 714c8c7b187adcd989e01a9fba1ebead6c2abd770c9Anders Carlsson llvm::Value* EmitAsmInput(const AsmStmt &S, TargetInfo::ConstraintInfo Info, 715c8c7b187adcd989e01a9fba1ebead6c2abd770c9Anders Carlsson const Expr *InputExpr, std::string &ConstraintStr); 716c8c7b187adcd989e01a9fba1ebead6c2abd770c9Anders Carlsson 7175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 7185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace CodeGen 7195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace clang 7205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#endif 722