CodeGenFunction.h revision fa1f756f88f4e6f3da2673082fdc1e8f54bccd6f
1bd012ff1fa088181646a784f385b28867372d434Daniel Dunbar//===-- CodeGenFunction.h - Per-Function state for LLVM CodeGen -*- C++ -*-===// 25f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 35f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// The LLVM Compiler Infrastructure 45f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 50bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// This file is distributed under the University of Illinois Open Source 60bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// License. See LICENSE.TXT for details. 75f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 85f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 95f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 100dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump// This is the internal per-function state used for llvm translation. 115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14ef52a2fb2ace36c92f88c6e125bd7defa17dafa5Chris Lattner#ifndef CLANG_CODEGEN_CODEGENFUNCTION_H 15ef52a2fb2ace36c92f88c6e125bd7defa17dafa5Chris Lattner#define CLANG_CODEGEN_CODEGENFUNCTION_H 165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 17391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner#include "clang/AST/Type.h" 185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "llvm/ADT/DenseMap.h" 19da13870e99fe33934b2122f06528a5063f78ae4cChris Lattner#include "llvm/ADT/SmallVector.h" 20c8c7b187adcd989e01a9fba1ebead6c2abd770c9Anders Carlsson#include "clang/Basic/TargetInfo.h" 215549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek#include "clang/AST/Expr.h" 22e3a09e6ad09f8d1387ecaa008aaf85527909da0aArgyrios Kyrtzidis#include "clang/AST/ExprCXX.h" 235549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek#include "clang/AST/ExprObjC.h" 245549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek 255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include <vector> 260ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar#include <map> 275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2845d196b8387dcefc4df26cda114fa34c6528e928Daniel Dunbar#include "CGBuilder.h" 290dbe227feccf6a8dbadfff8ca3f80416b7bf2f28Daniel Dunbar#include "CGCall.h" 308f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar#include "CGValue.h" 318f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar 325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace llvm { 33c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class BasicBlock; 345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class Module; 35898d508d4c9e9d45914952473e39196b20830a9fDaniel Dunbar class SwitchInst; 36ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar class Value; 375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace clang { 405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class ASTContext; 415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class Decl; 42c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class EnumConstantDecl; 435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class FunctionDecl; 44c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class FunctionTypeProto; 45c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class LabelStmt; 46679a502d462ef819e6175b58e255ca3f3391e7cfFariborz Jahanian class ObjCContainerDecl; 4729e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar class ObjCInterfaceDecl; 4829e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar class ObjCIvarDecl; 49391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner class ObjCMethodDecl; 50fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian class ObjCImplementationDecl; 51af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar class ObjCPropertyImplDecl; 525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class TargetInfo; 53c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class VarDecl; 545549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek 555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace CodeGen { 565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class CodeGenModule; 57b84a06e68ffd71da22e3c75b6e4bbdba37816413Devang Patel class CodeGenTypes; 58bb36d331f439f49859efcfb4435c61762fbba6f9Daniel Dunbar class CGFunctionInfo; 590dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump class CGRecordLayout; 600dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// CodeGenFunction - This class organizes the per-function state that is used 625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// while generating LLVM code. 635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CodeGenFunction { 64bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattnerpublic: 655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CodeGenModule &CGM; // Per-module state. 665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer TargetInfo &Target; 670dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 6858dee10ed2eee34035f62d1c2d32b3639e9182f8Chris Lattner typedef std::pair<llvm::Value *, llvm::Value *> ComplexPairTy; 6945d196b8387dcefc4df26cda114fa34c6528e928Daniel Dunbar CGBuilderTy Builder; 700dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 71c8aa5f1f264fb230c38182adab944232bb160c2bChris Lattner // Holds the Decl for the current function or method 724111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner const Decl *CurFuncDecl; 7388b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar const CGFunctionInfo *CurFnInfo; 74391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner QualType FnRetTy; 755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::Function *CurFn; 765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 775ca2084cf9b529563209429857f01fdae9dcdfa5Daniel Dunbar /// ReturnBlock - Unified return block. 785ca2084cf9b529563209429857f01fdae9dcdfa5Daniel Dunbar llvm::BasicBlock *ReturnBlock; 790dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// ReturnValue - The temporary alloca to hold the return value. This is null 800dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// iff the function has no return value. 815ca2084cf9b529563209429857f01fdae9dcdfa5Daniel Dunbar llvm::Instruction *ReturnValue; 820dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// AllocaInsertPoint - This is an instruction in the entry block before which 845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// we prefer to insert allocas. 855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::Instruction *AllocaInsertPt; 860ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar 875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const llvm::Type *LLVMIntTy; 887b66000bdfc2684351fb03208e672f23012ed569Hartmut Kaiser uint32_t LLVMPointerWidth; 8918ccc7776ad6288c5f630dc7967fb99d099c9cd9Daniel Dunbar 9018ccc7776ad6288c5f630dc7967fb99d099c9cd9Daniel Dunbarpublic: 91fa1f756f88f4e6f3da2673082fdc1e8f54bccd6fAnders Carlsson /// ObjCEHValueStack - Stack of Objective-C exception values, used for 92fa1f756f88f4e6f3da2673082fdc1e8f54bccd6fAnders Carlsson /// rethrows. 93273558fbd891a0872e620e0d3d109b92c1160d72Anders Carlsson llvm::SmallVector<llvm::Value*, 8> ObjCEHValueStack; 940dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 956fc559136b8ef98bfb824a0fd49df385405f2879Anders Carlsson /// PushCleanupBlock - Push a new cleanup entry on the stack and set the 966fc559136b8ef98bfb824a0fd49df385405f2879Anders Carlsson /// passed in block as the cleanup block. 976fc559136b8ef98bfb824a0fd49df385405f2879Anders Carlsson void PushCleanupBlock(llvm::BasicBlock *CleanupBlock); 98bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson 990dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// CleanupBlockInfo - A struct representing a popped cleanup block. 100bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson struct CleanupBlockInfo { 101bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson /// CleanupBlock - the cleanup block 102bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson llvm::BasicBlock *CleanupBlock; 1030dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1040dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// SwitchBlock - the block (if any) containing the switch instruction used 1050dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// for jumping to the final destination. 106bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson llvm::BasicBlock *SwitchBlock; 1070dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 108bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson /// EndBlock - the default destination for the switch instruction. 109bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson llvm::BasicBlock *EndBlock; 1100dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1110dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump CleanupBlockInfo(llvm::BasicBlock *cb, llvm::BasicBlock *sb, 112bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson llvm::BasicBlock *eb) 113bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson : CleanupBlock(cb), SwitchBlock(sb), EndBlock(eb) {} 114bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson }; 115bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson 116bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson /// PopCleanupBlock - Will pop the cleanup entry on the stack, process all 1170dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// branch fixups and return a block info struct with the switch block and end 1180dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// block. 119bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson CleanupBlockInfo PopCleanupBlock(); 1200dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1210dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// CleanupScope - RAII object that will create a cleanup block and set the 1220dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// insert point to that block. When destructed, it sets the insert point to 1230dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// the previous block and pushes a new cleanup entry on the stack. 1240d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson class CleanupScope { 1250d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson CodeGenFunction& CGF; 1260d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson llvm::BasicBlock *CurBB; 1276fc559136b8ef98bfb824a0fd49df385405f2879Anders Carlsson llvm::BasicBlock *CleanupBB; 1280dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1290d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson public: 1300d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson CleanupScope(CodeGenFunction &cgf) 1310d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson : CGF(cgf), CurBB(CGF.Builder.GetInsertBlock()) { 1326fc559136b8ef98bfb824a0fd49df385405f2879Anders Carlsson CleanupBB = CGF.createBasicBlock("cleanup"); 1336fc559136b8ef98bfb824a0fd49df385405f2879Anders Carlsson CGF.Builder.SetInsertPoint(CleanupBB); 1340d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson } 1350dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1360d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson ~CleanupScope() { 1376fc559136b8ef98bfb824a0fd49df385405f2879Anders Carlsson CGF.PushCleanupBlock(CleanupBB); 1380d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson CGF.Builder.SetInsertPoint(CurBB); 1390d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson } 1400d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson }; 1410d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson 142c71c845fe77ee1f891d60232ec320912d88557eeAnders Carlsson /// EmitCleanupBlocks - Takes the old cleanup stack size and emits the cleanup 143c71c845fe77ee1f891d60232ec320912d88557eeAnders Carlsson /// blocks that have been added. 144c71c845fe77ee1f891d60232ec320912d88557eeAnders Carlsson void EmitCleanupBlocks(size_t OldCleanupStackSize); 145c71c845fe77ee1f891d60232ec320912d88557eeAnders Carlsson 14687eaf17cc88516277e4389dfa15df93ecfdce559Anders Carlsson /// EmitBranchThroughCleanup - Emit a branch from the current insert block 14787eaf17cc88516277e4389dfa15df93ecfdce559Anders Carlsson /// through the cleanup handling code (if any) and then on to \arg Dest. 14887eaf17cc88516277e4389dfa15df93ecfdce559Anders Carlsson /// 1490dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// FIXME: Maybe this should really be in EmitBranch? Don't we always want 15087eaf17cc88516277e4389dfa15df93ecfdce559Anders Carlsson /// this behavior for branches? 15187eaf17cc88516277e4389dfa15df93ecfdce559Anders Carlsson void EmitBranchThroughCleanup(llvm::BasicBlock *Dest); 1520dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1537f02f721d48772e4eee4fccd8af4f800be1bbc1eChris Lattnerprivate: 1540dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// LabelIDs - Track arbitrary ids assigned to labels for use in implementing 1550dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// the GCC address-of-label extension and indirect goto. IDs are assigned to 1560dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// labels inside getIDForAddrOfLabel(). 1570ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar std::map<const LabelStmt*, unsigned> LabelIDs; 1580ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar 1590ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar /// IndirectSwitches - Record the list of switches for indirect 1600dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// gotos. Emission of the actual switching code needs to be delayed until all 1610dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// AddrLabelExprs have been seen. 1620ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar std::vector<llvm::SwitchInst*> IndirectSwitches; 1630ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar 1640dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// LocalDeclMap - This keeps track of the LLVM allocas or globals for local C 1650dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// decls. 1665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::DenseMap<const Decl*, llvm::Value*> LocalDeclMap; 1675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// LabelMap - This keeps track of the LLVM basic block for each C label. 1695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::DenseMap<const LabelStmt*, llvm::BasicBlock*> LabelMap; 1700dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1710dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // BreakContinueStack - This keeps track of where break and continue 172e4b6d342c29d5cb9d311756100df1603810fa892Anders Carlsson // statements should jump to. 173da13870e99fe33934b2122f06528a5063f78ae4cChris Lattner struct BreakContinue { 174e4b6d342c29d5cb9d311756100df1603810fa892Anders Carlsson BreakContinue(llvm::BasicBlock *bb, llvm::BasicBlock *cb) 175e4b6d342c29d5cb9d311756100df1603810fa892Anders Carlsson : BreakBlock(bb), ContinueBlock(cb) {} 1760dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 177da13870e99fe33934b2122f06528a5063f78ae4cChris Lattner llvm::BasicBlock *BreakBlock; 178da13870e99fe33934b2122f06528a5063f78ae4cChris Lattner llvm::BasicBlock *ContinueBlock; 1790dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump }; 180da13870e99fe33934b2122f06528a5063f78ae4cChris Lattner llvm::SmallVector<BreakContinue, 8> BreakContinueStack; 18118ccc7776ad6288c5f630dc7967fb99d099c9cd9Daniel Dunbar 1820dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// SwitchInsn - This is nearest current switch instruction. It is null if if 1830dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// current context is not in a switch. 18451b09f2c528c8460b5465c676173324e44176d62Devang Patel llvm::SwitchInst *SwitchInsn; 18551b09f2c528c8460b5465c676173324e44176d62Devang Patel 1860dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// CaseRangeBlock - This block holds if condition check for last case 18780fd5f96e6805ac43aab99faabd5b4c8b19551b7Devang Patel /// statement range in current switch instruction. 188c049e4f406a7f7179eba98659044a32508e53289Devang Patel llvm::BasicBlock *CaseRangeBlock; 189c049e4f406a7f7179eba98659044a32508e53289Devang Patel 1900dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // VLASizeMap - This keeps track of the associated size for each VLA type. 1910dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // FIXME: Maybe this could be a stack of maps that is pushed/popped as we 1920dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // enter/leave scopes. 193dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson llvm::DenseMap<const VariableArrayType*, llvm::Value*> VLASizeMap; 1940dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1954cc1a4703363ff940b6273aeef9d96a87edeb04bAnders Carlsson /// DidCallStackSave - Whether llvm.stacksave has been called. Used to avoid 1964cc1a4703363ff940b6273aeef9d96a87edeb04bAnders Carlsson /// calling llvm.stacksave for multiple VLAs in the same scope. 1974cc1a4703363ff940b6273aeef9d96a87edeb04bAnders Carlsson bool DidCallStackSave; 1984cc1a4703363ff940b6273aeef9d96a87edeb04bAnders Carlsson 1996ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson struct CleanupEntry { 2006ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson /// CleanupBlock - The block of code that does the actual cleanup. 2016ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson llvm::BasicBlock *CleanupBlock; 2020dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 2036ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson /// Blocks - Basic blocks that were emitted in the current cleanup scope. 204bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson std::vector<llvm::BasicBlock *> Blocks; 2056ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson 2066ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson /// BranchFixups - Branch instructions to basic blocks that haven't been 2076ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson /// inserted into the current function yet. 208bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson std::vector<llvm::BranchInst *> BranchFixups; 2096ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson 2106ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson explicit CleanupEntry(llvm::BasicBlock *cb) 2116ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson : CleanupBlock(cb) {} 2120dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 213bd6fa3d032acd7eafc6c10827c41103df45beab7Anders Carlsson ~CleanupEntry() { 214bd6fa3d032acd7eafc6c10827c41103df45beab7Anders Carlsson assert(Blocks.empty() && "Did not empty blocks!"); 215bd6fa3d032acd7eafc6c10827c41103df45beab7Anders Carlsson assert(BranchFixups.empty() && "Did not empty branch fixups!"); 216bd6fa3d032acd7eafc6c10827c41103df45beab7Anders Carlsson } 2176ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson }; 2180dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 2196ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson /// CleanupEntries - Stack of cleanup entries. 2206ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson llvm::SmallVector<CleanupEntry, 8> CleanupEntries; 2216ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson 222bd6fa3d032acd7eafc6c10827c41103df45beab7Anders Carlsson typedef llvm::DenseMap<llvm::BasicBlock*, size_t> BlockScopeMap; 223bd6fa3d032acd7eafc6c10827c41103df45beab7Anders Carlsson 224bd6fa3d032acd7eafc6c10827c41103df45beab7Anders Carlsson /// BlockScopes - Map of which "cleanup scope" scope basic blocks have. 225bd6fa3d032acd7eafc6c10827c41103df45beab7Anders Carlsson BlockScopeMap BlockScopes; 2260dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 2275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 2285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CodeGenFunction(CodeGenModule &cgm); 2290dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 2305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ASTContext &getContext() const; 2315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 232391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner void GenerateObjCMethod(const ObjCMethodDecl *OMD); 233af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 2340dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump void StartObjCMethod(const ObjCMethodDecl *MD, 235679a502d462ef819e6175b58e255ca3f3391e7cfFariborz Jahanian const ObjCContainerDecl *CD); 236af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 2370dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// GenerateObjCGetter - Synthesize an Objective-C property getter function. 238fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian void GenerateObjCGetter(ObjCImplementationDecl *IMP, 239fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian const ObjCPropertyImplDecl *PID); 240af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 2410dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// GenerateObjCSetter - Synthesize an Objective-C property setter function 2420dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// for the given property. 243fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian void GenerateObjCSetter(ObjCImplementationDecl *IMP, 244fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian const ObjCPropertyImplDecl *PID); 245af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 246bd012ff1fa088181646a784f385b28867372d434Daniel Dunbar void GenerateCode(const FunctionDecl *FD, 247bd012ff1fa088181646a784f385b28867372d434Daniel Dunbar llvm::Function *Fn); 2480dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump void StartFunction(const Decl *D, QualType RetTy, 2497c086516f3cc9fba2733b1919973206c6ba4b171Daniel Dunbar llvm::Function *Fn, 2502284ac9ec80299fcdefae9a2787cf85105a0f203Daniel Dunbar const FunctionArgList &Args, 2512284ac9ec80299fcdefae9a2787cf85105a0f203Daniel Dunbar SourceLocation StartLoc); 252a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 2530dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitReturnBlock - Emit the unified return block, trying to avoid its 2540dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// emission when possible. 2551c1d6074f5a0296dd273362655b1b8f9057289e3Daniel Dunbar void EmitReturnBlock(); 2561c1d6074f5a0296dd273362655b1b8f9057289e3Daniel Dunbar 2570dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// FinishFunction - Complete IR generation of the current function. It is 2580dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// legal to call this function even if there is no current insertion point. 259af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar void FinishFunction(SourceLocation EndLoc=SourceLocation()); 26017b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar 2610dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitFunctionProlog - Emit the target specific LLVM code to load the 2620dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// arguments for the given function. This is also responsible for naming the 2630dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// LLVM function arguments. 26488b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar void EmitFunctionProlog(const CGFunctionInfo &FI, 26588b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar llvm::Function *Fn, 26617b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar const FunctionArgList &Args); 26717b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar 2680dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitFunctionEpilog - Emit the target specific LLVM code to return the 2690dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// given temporary. 27088b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar void EmitFunctionEpilog(const CGFunctionInfo &FI, llvm::Value *ReturnValue); 27117b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar 2728b1a343b6b360d63d5dc8a6beb841ce4414c1e00Daniel Dunbar const llvm::Type *ConvertTypeForMem(QualType T); 2735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const llvm::Type *ConvertType(QualType T); 274c8aa5f1f264fb230c38182adab944232bb160c2bChris Lattner 2750dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// LoadObjCSelf - Load the value of self. This function is only valid while 2760dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// generating code for an Objective-C method. 277c8aa5f1f264fb230c38182adab944232bb160c2bChris Lattner llvm::Value *LoadObjCSelf(); 2780dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 2790dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// TypeOfSelfObject - Return type of object that this self represents. 28045012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian QualType TypeOfSelfObject(); 2814111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner 2824111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner /// isObjCPointerType - Return true if the specificed AST type will map onto 2834111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner /// some Objective-C pointer type. 2844111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner static bool isObjCPointerType(QualType T); 2854111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner 2865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// hasAggregateLLVMType - Return true if the specified AST type will map into 2875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// an aggregate LLVM type or is void. 2885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool hasAggregateLLVMType(QualType T); 28955e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar 29055e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar /// createBasicBlock - Create an LLVM basic block. 2910dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump llvm::BasicBlock *createBasicBlock(const char *Name="", 29255e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar llvm::Function *Parent=0, 29355e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar llvm::BasicBlock *InsertBefore=0) { 29429ea6729155c759836be4b5453bee9ef8e1e97eeDaniel Dunbar#ifdef NDEBUG 29529ea6729155c759836be4b5453bee9ef8e1e97eeDaniel Dunbar return llvm::BasicBlock::Create("", Parent, InsertBefore); 29629ea6729155c759836be4b5453bee9ef8e1e97eeDaniel Dunbar#else 29755e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar return llvm::BasicBlock::Create(Name, Parent, InsertBefore); 29829ea6729155c759836be4b5453bee9ef8e1e97eeDaniel Dunbar#endif 29955e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar } 3000dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 3015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getBasicBlockForLabel - Return the LLVM basicblock that the specified 3025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// label maps to. 3035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::BasicBlock *getBasicBlockForLabel(const LabelStmt *S); 3040dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 3050dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitBlock - Emit the given block \arg BB and set it as the insert point, 3060dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// adding a fall-through branch from the current insert block if 3070dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// necessary. It is legal to call this function even if there is no current 3080dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// insertion point. 309a0c21a8faa79e88ac432d116eca58f7a7217195dDaniel Dunbar /// 3100dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// IsFinished - If true, indicates that the caller has finished emitting 3110dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// branches to the given block and does not expect to emit code into it. This 3120dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// means the block can be ignored if it is unreachable. 313a0c21a8faa79e88ac432d116eca58f7a7217195dDaniel Dunbar void EmitBlock(llvm::BasicBlock *BB, bool IsFinished=false); 314824e3bd76b2e32db2ec6e4d2d113413e518d1c63Daniel Dunbar 3150dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitBranch - Emit a branch to the specified basic block from the current 3160dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// insert block, taking care to avoid creation of branches from dummy 3170dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// blocks. It is legal to call this function even if there is no current 3180dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// insertion point. 3195e08ad3cc62ab94649959ae227a9a411a729bf49Daniel Dunbar /// 3200dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// This function clears the current insertion point. The caller should follow 3210dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// calls to this function with calls to Emit*Block prior to generation new 3220dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// code. 323d57a871339c7c98d58d93108b806f59bdf4e13e2Daniel Dunbar void EmitBranch(llvm::BasicBlock *Block); 324d57a871339c7c98d58d93108b806f59bdf4e13e2Daniel Dunbar 3250dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// HaveInsertPoint - True if an insertion point is defined. If not, this 3260dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// indicates that the current code being emitted is unreachable. 3270dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump bool HaveInsertPoint() const { 328a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar return Builder.GetInsertBlock() != 0; 329a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar } 330a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 3310dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EnsureInsertPoint - Ensure that an insertion point is defined so that 3320dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// emitted IR has a place to go. Note that by definition, if this function 3330dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// creates a block then that block is unreachable; callers may do better to 3340dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// detect when no insertion point is defined and simply skip IR generation. 335a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar void EnsureInsertPoint() { 336a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar if (!HaveInsertPoint()) 337a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar EmitBlock(createBasicBlock()); 338a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar } 3390dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 340488e993a135ce700b982bf099c3d6b856301d642Daniel Dunbar /// ErrorUnsupported - Print out an error that codegen doesn't support the 341dc5e8268292046114ffe02e48773572a91a310f1Chris Lattner /// specified stmt yet. 34290df4b6661968a84bf64baee489bb2f6d948fcc1Daniel Dunbar void ErrorUnsupported(const Stmt *S, const char *Type, 34390df4b6661968a84bf64baee489bb2f6d948fcc1Daniel Dunbar bool OmitOnError=false); 3445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 3465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Helpers 3475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 3480dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 3495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// CreateTempAlloca - This creates a alloca and inserts it into the entry 3505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// block. 3515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::AllocaInst *CreateTempAlloca(const llvm::Type *Ty, 3525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *Name = "tmp"); 3530dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 3545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EvaluateExprAsBool - Perform the usual unary conversions on the specified 3555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// expression and compare the result against zero, returning an Int1Ty value. 3565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::Value *EvaluateExprAsBool(const Expr *E); 3575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3589b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// EmitAnyExpr - Emit code to compute the specified expression which can have 3599b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// any type. The result is returned as an RValue struct. If this is an 3609b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// aggregate expression, the aggloc/agglocvolatile arguments indicate where 3619b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// the result should be returned. 3620dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump RValue EmitAnyExpr(const Expr *E, llvm::Value *AggLoc = 0, 3639b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner bool isAggLocVolatile = false); 364d9363c3a80168283b3da518b4e17f545a6246857Devang Patel 3650dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // EmitVAListRef - Emit a "reference" to a va_list; this is either the address 3660dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // or the value of the expression, depending on how va_list is defined. 3674fd0aa5803357d8c72eeac2cae15e12649ea08feEli Friedman llvm::Value *EmitVAListRef(const Expr *E); 3684fd0aa5803357d8c72eeac2cae15e12649ea08feEli Friedman 3690dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitAnyExprToTemp - Similary to EmitAnyExpr(), however, the result will 3700dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// always be accessible even if no aggregate location is provided. 3710dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump RValue EmitAnyExprToTemp(const Expr *E, llvm::Value *AggLoc = 0, 37246f45b9bec4a265ad8400a538e5ec3a5683617f1Daniel Dunbar bool isAggLocVolatile = false); 37346f45b9bec4a265ad8400a538e5ec3a5683617f1Daniel Dunbar 3747482d12c345c6391f8956850545e2d4aa7701ce6Daniel Dunbar void EmitAggregateCopy(llvm::Value *DestPtr, llvm::Value *SrcPtr, 3757482d12c345c6391f8956850545e2d4aa7701ce6Daniel Dunbar QualType EltTy); 3767482d12c345c6391f8956850545e2d4aa7701ce6Daniel Dunbar 3777482d12c345c6391f8956850545e2d4aa7701ce6Daniel Dunbar void EmitAggregateClear(llvm::Value *DestPtr, QualType Ty); 3787482d12c345c6391f8956850545e2d4aa7701ce6Daniel Dunbar 37951b09f2c528c8460b5465c676173324e44176d62Devang Patel /// StartBlock - Start new block named N. If insert block is a dummy block 38051b09f2c528c8460b5465c676173324e44176d62Devang Patel /// then reuse it. 38151b09f2c528c8460b5465c676173324e44176d62Devang Patel void StartBlock(const char *N); 38251b09f2c528c8460b5465c676173324e44176d62Devang Patel 38388a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel /// getCGRecordLayout - Return record layout info. 38488a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel const CGRecordLayout *getCGRecordLayout(CodeGenTypes &CGT, QualType RTy); 385813733577d33ec56479667b49e1bff42dc6bba90Lauro Ramos Venancio 386813733577d33ec56479667b49e1bff42dc6bba90Lauro Ramos Venancio /// GetAddrOfStaticLocalVar - Return the address of a static local variable. 387248a753f6b670692523c99afaeb8fe98f7ae3ca7Steve Naroff llvm::Constant *GetAddrOfStaticLocalVar(const VarDecl *BVD); 3884f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman 389dde0a94120915fa925d1ffcdb997c7b44dc9fa21Anders Carlsson /// GetAddrOfLocalVar - Return the address of a local variable. 390dde0a94120915fa925d1ffcdb997c7b44dc9fa21Anders Carlsson llvm::Value *GetAddrOfLocalVar(const VarDecl *VD); 3910dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 3924f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman /// getAccessedFieldNo - Given an encoded value and a result number, return 3934f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman /// the input field number being accessed. 3944f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman static unsigned getAccessedFieldNo(unsigned Idx, const llvm::Constant *Elts); 3954f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman 3960ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar unsigned GetIDForAddrOfLabel(const LabelStmt *L); 3970ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar 3980dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitMemSetToZero - Generate code to memset a value of the given type to 0. 3993d8400d9a61aa4b63ff35e5cede405b32a41425eAnders Carlsson void EmitMemSetToZero(llvm::Value *DestPtr, QualType Ty); 400ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson 401ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson // EmitVAArg - Generate code to get an argument from the passed in pointer 402ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson // and update it accordingly. The return value is a pointer to the argument. 403ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson // FIXME: We should be able to get rid of this method and use the va_arg 4040dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // instruction in LLVM instead once it works well enough. 405ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson llvm::Value *EmitVAArg(llvm::Value *VAListAddr, QualType Ty); 406f666b7780d04186521adcaedb0e15dfa4d5e6933Anders Carlsson 40760d35413662ebdcd1d31e34a8a7c665eb6977f1eAnders Carlsson // EmitVLASize - Generate code for any VLA size expressions that might occur 40860d35413662ebdcd1d31e34a8a7c665eb6977f1eAnders Carlsson // in a variably modified type. If Ty is a VLA, will return the value that 40960d35413662ebdcd1d31e34a8a7c665eb6977f1eAnders Carlsson // corresponds to the size in bytes of the VLA type. Will return 0 otherwise. 41060d35413662ebdcd1d31e34a8a7c665eb6977f1eAnders Carlsson llvm::Value *EmitVLASize(QualType Ty); 4110dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 412dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson // GetVLASize - Returns an LLVM value that corresponds to the size in bytes 413dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson // of a variable length array type. 414dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson llvm::Value *GetVLASize(const VariableArrayType *); 415dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson 4165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 4175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Declaration Emission 4185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 4190dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 4205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitDecl(const Decl &D); 421248a753f6b670692523c99afaeb8fe98f7ae3ca7Steve Naroff void EmitBlockVarDecl(const VarDecl &D); 422248a753f6b670692523c99afaeb8fe98f7ae3ca7Steve Naroff void EmitLocalBlockVarDecl(const VarDecl &D); 423248a753f6b670692523c99afaeb8fe98f7ae3ca7Steve Naroff void EmitStaticBlockVarDecl(const VarDecl &D); 424b7ec246872b412f0e7bb9e93eacfd78cfa6adfb3Daniel Dunbar 425b7ec246872b412f0e7bb9e93eacfd78cfa6adfb3Daniel Dunbar /// EmitParmDecl - Emit a ParmVarDecl or an ImplicitParamDecl. 426b7ec246872b412f0e7bb9e93eacfd78cfa6adfb3Daniel Dunbar void EmitParmDecl(const VarDecl &D, llvm::Value *Arg); 4270dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 4285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 4295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Statement Emission 4305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 4315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4320dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitStopPoint - Emit a debug stoppoint if we are emitting debug info. 4330912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar void EmitStopPoint(const Stmt *S); 4340912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar 4350dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitStmt - Emit the code for the statement \arg S. It is legal to call 4360dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// this function even if there is no current insertion point. 4370dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// 4380dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// This function may clear the current insertion point; callers should use 4390dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EnsureInsertPoint if they wish to subsequently generate code without first 4400dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// calling EmitBlock, EmitBranch, or EmitStmt. 4415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitStmt(const Stmt *S); 442a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 4430912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar /// EmitSimpleStmt - Try to emit a "simple" statement which does not 4440dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// necessarily require an insertion point or debug information; typically 4450dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// because the statement amounts to a jump or a container of other 4460dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// statements. 4470912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar /// 4480912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar /// \return True if the statement was handled. 4490912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar bool EmitSimpleStmt(const Stmt *S); 4500912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar 4519b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner RValue EmitCompoundStmt(const CompoundStmt &S, bool GetLast = false, 4529b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner llvm::Value *AggLoc = 0, bool isAggVol = false); 453a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 4540dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitLabel - Emit the block for the given label. It is legal to call this 4550dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// function even if there is no current insertion point. 45691d723da7b68be5245c3ac58aa2a36d04658cfb8Chris Lattner void EmitLabel(const LabelStmt &S); // helper for EmitLabelStmt. 457a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 4585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitLabelStmt(const LabelStmt &S); 4595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitGotoStmt(const GotoStmt &S); 4600ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar void EmitIndirectGotoStmt(const IndirectGotoStmt &S); 4615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitIfStmt(const IfStmt &S); 4625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitWhileStmt(const WhileStmt &S); 4635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitDoStmt(const DoStmt &S); 4645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitForStmt(const ForStmt &S); 4655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitReturnStmt(const ReturnStmt &S); 4665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitDeclStmt(const DeclStmt &S); 4670912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar void EmitBreakStmt(const BreakStmt &S); 4680912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar void EmitContinueStmt(const ContinueStmt &S); 46951b09f2c528c8460b5465c676173324e44176d62Devang Patel void EmitSwitchStmt(const SwitchStmt &S); 47051b09f2c528c8460b5465c676173324e44176d62Devang Patel void EmitDefaultStmt(const DefaultStmt &S); 47151b09f2c528c8460b5465c676173324e44176d62Devang Patel void EmitCaseStmt(const CaseStmt &S); 472c049e4f406a7f7179eba98659044a32508e53289Devang Patel void EmitCaseStmtRange(const CaseStmt &S); 473fb1aeb804c08d5288a923fb278161783e6abdc66Anders Carlsson void EmitAsmStmt(const AsmStmt &S); 4740dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 4753d8400d9a61aa4b63ff35e5cede405b32a41425eAnders Carlsson void EmitObjCForCollectionStmt(const ObjCForCollectionStmt &S); 47664d5d6c5903157c521af496479d06dc26032d718Anders Carlsson void EmitObjCAtTryStmt(const ObjCAtTryStmt &S); 47764d5d6c5903157c521af496479d06dc26032d718Anders Carlsson void EmitObjCAtThrowStmt(const ObjCAtThrowStmt &S); 47810cac6f7115b59a466bb8d2d51cdddeb38aadc37Chris Lattner void EmitObjCAtSynchronizedStmt(const ObjCAtSynchronizedStmt &S); 4790dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 4805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 4815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // LValue Expression Emission 4825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 4835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 48413e81737a433b23f8c662d10d1d57356122a8caaDaniel Dunbar /// GetUndefRValue - Get an appropriate 'undef' rvalue for the given type. 48513e81737a433b23f8c662d10d1d57356122a8caaDaniel Dunbar RValue GetUndefRValue(QualType Ty); 48613e81737a433b23f8c662d10d1d57356122a8caaDaniel Dunbar 487ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar /// EmitUnsupportedRValue - Emit a dummy r-value using the type of E 488ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar /// and issue an ErrorUnsupported style diagnostic (using the 489ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar /// provided Name). 490ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar RValue EmitUnsupportedRValue(const Expr *E, 491ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar const char *Name); 492ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar 4930dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitUnsupportedLValue - Emit a dummy l-value using the type of E and issue 4940dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// an ErrorUnsupported style diagnostic (using the provided Name). 4956ba82a4a4b295e54cf192c3e98b28f39990c6194Daniel Dunbar LValue EmitUnsupportedLValue(const Expr *E, 4966ba82a4a4b295e54cf192c3e98b28f39990c6194Daniel Dunbar const char *Name); 4976ba82a4a4b295e54cf192c3e98b28f39990c6194Daniel Dunbar 4985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EmitLValue - Emit code to compute a designator that specifies the location 4995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// of the expression. 5005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 5015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// This can return one of two things: a simple address or a bitfield 5025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// reference. In either case, the LLVM Value* in the LValue structure is 5035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// guaranteed to be an LLVM pointer type. 5045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 5055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// If this returns a bitfield reference, nothing about the pointee type of 5065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// the LLVM value is known: For example, it may not be a pointer to an 5075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// integer. 5085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 5095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// If this returns a normal address, and if the lvalue's C type is fixed 5105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// size, this method guarantees that the returned pointer type will point to 5115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// an LLVM type of the same size of the lvalue's type. If the lvalue has a 5125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// variable length type, this is not possible. 5135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 5145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitLValue(const Expr *E); 5150dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 5169d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// EmitLoadOfScalar - Load a scalar value from an address, taking 5179d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// care to appropriately convert from the memory representation to 5189d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// the LLVM value representation. 5199d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar llvm::Value *EmitLoadOfScalar(llvm::Value *Addr, bool Volatile, 5209d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar QualType Ty); 5219d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar 5229d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// EmitStoreOfScalar - Store a scalar value to an address, taking 5239d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// care to appropriately convert from the memory representation to 5249d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// the LLVM value representation. 5259d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar void EmitStoreOfScalar(llvm::Value *Value, llvm::Value *Addr, 5269d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar bool Volatile); 5279d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar 5285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EmitLoadOfLValue - Given an expression that represents a value lvalue, 5295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// this method emits the address of the lvalue, then loads the result as an 5305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// rvalue, returning the rvalue. 5315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer RValue EmitLoadOfLValue(LValue V, QualType LVType); 532213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman RValue EmitLoadOfExtVectorElementLValue(LValue V, QualType LVType); 5333b8c22d93da1432b2d4cea779d14912645c93866Lauro Ramos Venancio RValue EmitLoadOfBitfieldLValue(LValue LV, QualType ExprType); 53485c59edda02df48fae8dc85049743319bc6e7e89Daniel Dunbar RValue EmitLoadOfPropertyRefLValue(LValue LV, QualType ExprType); 53543f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian RValue EmitLoadOfKVCRefLValue(LValue LV, QualType ExprType); 5365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5370dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 5385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EmitStoreThroughLValue - Store the specified rvalue into the specified 5395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// lvalue, where both are guaranteed to the have the same type, and that type 5405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// is 'Ty'. 5415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitStoreThroughLValue(RValue Src, LValue Dst, QualType Ty); 542213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman void EmitStoreThroughExtVectorComponentLValue(RValue Src, LValue Dst, 543213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman QualType Ty); 54485c59edda02df48fae8dc85049743319bc6e7e89Daniel Dunbar void EmitStoreThroughPropertyRefLValue(RValue Src, LValue Dst, QualType Ty); 54543f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian void EmitStoreThroughKVCRefLValue(RValue Src, LValue Dst, QualType Ty); 546ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar 5470dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitStoreThroughLValue - Store Src into Dst with same constraints as 5480dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitStoreThroughLValue. 549ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar /// 5500dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// \param Result [out] - If non-null, this will be set to a Value* for the 5510dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// bit-field contents after the store, appropriate for use as the result of 5520dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// an assignment to the bit-field. 553ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar void EmitStoreThroughBitfieldLValue(RValue Src, LValue Dst, QualType Ty, 554ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar llvm::Value **Result=0); 5550dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 55622c940ee588a420cd2e6c8f68be2ac3cc80061ffChristopher Lamb // Note: only availabe for agg return types 55780e62c29fe21cd06c93eba6e72b7e32dca06fcf9Daniel Dunbar LValue EmitBinaryOperatorLValue(const BinaryOperator *E); 55880e62c29fe21cd06c93eba6e72b7e32dca06fcf9Daniel Dunbar // Note: only availabe for agg return types 55922c940ee588a420cd2e6c8f68be2ac3cc80061ffChristopher Lamb LValue EmitCallExprLValue(const CallExpr *E); 5605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitDeclRefLValue(const DeclRefExpr *E); 5615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitStringLiteralLValue(const StringLiteral *E); 562662b71ee82339c67f2c3689196e716c6560cf925Daniel Dunbar LValue EmitPredefinedFunctionName(unsigned Type); 563d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner LValue EmitPredefinedLValue(const PredefinedExpr *E); 5645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitUnaryOpLValue(const UnaryOperator *E); 5655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitArraySubscriptExpr(const ArraySubscriptExpr *E); 566213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman LValue EmitExtVectorElementExpr(const ExtVectorElementExpr *E); 567b84a06e68ffd71da22e3c75b6e4bbdba37816413Devang Patel LValue EmitMemberExpr(const MemberExpr *E); 56806e863f2902b8ba55b056308875c19f7ba3dab25Eli Friedman LValue EmitCompoundLiteralLValue(const CompoundLiteralExpr *E); 569472778eb4fce241721c563280886e98389bc7219Eli Friedman 57029e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar llvm::Value *EmitIvarOffset(ObjCInterfaceDecl *Interface, 57129e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar const ObjCIvarDecl *Ivar); 572472778eb4fce241721c563280886e98389bc7219Eli Friedman LValue EmitLValueForField(llvm::Value* Base, FieldDecl* Field, 5731e692ace08959399794363e77499b73da5494af9Eli Friedman bool isUnion, unsigned CVRQualifiers); 57445012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian LValue EmitLValueForIvar(QualType ObjectTy, 57545012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian llvm::Value* Base, const ObjCIvarDecl *Ivar, 576fd64bb635dc221baa19f81d5d2a084f7eb269f7fFariborz Jahanian const FieldDecl *Field, 57729e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar unsigned CVRQualifiers); 57829e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar 579fd64bb635dc221baa19f81d5d2a084f7eb269f7fFariborz Jahanian LValue EmitLValueForBitfield(llvm::Value* Base, FieldDecl* Field, 580598d3f61b6ca854e9d3c2f3359e24468502a61aaFariborz Jahanian unsigned CVRQualifiers); 581fd64bb635dc221baa19f81d5d2a084f7eb269f7fFariborz Jahanian 582e3a09e6ad09f8d1387ecaa008aaf85527909da0aArgyrios Kyrtzidis LValue EmitCXXConditionDeclLValue(const CXXConditionDeclExpr *E); 583e3a09e6ad09f8d1387ecaa008aaf85527909da0aArgyrios Kyrtzidis 5840a04d77bde7e3a661c2b41b60630d125d09ed6efDaniel Dunbar LValue EmitObjCMessageExprLValue(const ObjCMessageExpr *E); 585391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner LValue EmitObjCIvarRefLValue(const ObjCIvarRefExpr *E); 58685c59edda02df48fae8dc85049743319bc6e7e89Daniel Dunbar LValue EmitObjCPropertyRefLValue(const ObjCPropertyRefExpr *E); 58743f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian LValue EmitObjCKVCRefLValue(const ObjCKVCRefExpr *E); 588cd9b46e5442a3ef17f83f75177d8545cb5b3e2b9Douglas Gregor LValue EmitObjCSuperExpr(const ObjCSuperExpr *E); 5890a04d77bde7e3a661c2b41b60630d125d09ed6efDaniel Dunbar 5905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 591883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner // Scalar Expression Emission 5925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 5935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5940dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitCall - Generate a call of the given function, expecting the given 5950dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// result type, and using the given argument list which specifies both the 5960dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// LLVM arguments and the types they were derived from. 59788b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar RValue EmitCall(const CGFunctionInfo &FnInfo, 59888b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar llvm::Value *Callee, 59919cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar const CallArgList &Args); 60019cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar 6015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer RValue EmitCallExpr(const CallExpr *E); 6025549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek 6035549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek RValue EmitCallExpr(Expr *FnExpr, CallExpr::const_arg_iterator ArgBeg, 6045549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek CallExpr::const_arg_iterator ArgEnd); 6055549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek 6065193b8a3e57c4f696161aeddfe8227c294c0a7feEli Friedman RValue EmitCallExpr(llvm::Value *Callee, QualType FnType, 6075549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek CallExpr::const_arg_iterator ArgBeg, 6085549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek CallExpr::const_arg_iterator ArgEnd); 6090dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 6101e4d21ea5849637c49fd4222b09c4b5dedff7765Chris Lattner RValue EmitBuiltinExpr(unsigned BuiltinID, const CallExpr *E); 6115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6120dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitTargetBuiltinExpr - Emit the given builtin call. Returns 0 if the call 6130dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// is unhandled by the current target. 614f02e9ddf5efc75917af712b3c7f909581205f0a5Daniel Dunbar llvm::Value *EmitTargetBuiltinExpr(unsigned BuiltinID, const CallExpr *E); 615f02e9ddf5efc75917af712b3c7f909581205f0a5Daniel Dunbar 616564f1de67d7ba43646b8740db86d6269e3dfbe0bAnders Carlsson llvm::Value *EmitX86BuiltinExpr(unsigned BuiltinID, const CallExpr *E); 617564f1de67d7ba43646b8740db86d6269e3dfbe0bAnders Carlsson llvm::Value *EmitPPCBuiltinExpr(unsigned BuiltinID, const CallExpr *E); 6180dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 619cc23acae84c6d5c37b4805edbcd95ee5d821c400Anders Carlsson llvm::Value *EmitShuffleVector(llvm::Value* V1, llvm::Value *V2, ...); 6204119d1aeca8016654d381ce079864058d1709571Nate Begeman llvm::Value *EmitVector(llvm::Value * const *Vals, unsigned NumVals, 6214119d1aeca8016654d381ce079864058d1709571Nate Begeman bool isSplat = false); 6220dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 623ed7c618f849e2541b1d0288c43154937652c5b15Daniel Dunbar llvm::Value *EmitObjCProtocolExpr(const ObjCProtocolExpr *E); 6247f02f721d48772e4eee4fccd8af4f800be1bbc1eChris Lattner llvm::Value *EmitObjCStringLiteral(const ObjCStringLiteral *E); 6258fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner llvm::Value *EmitObjCSelectorExpr(const ObjCSelectorExpr *E); 6268f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar RValue EmitObjCMessageExpr(const ObjCMessageExpr *E); 6275daf570d0ce027e18ed5f9d66e6b2a14a40b720dFariborz Jahanian RValue EmitObjCPropertyGet(const Expr *E); 62843f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian void EmitObjCPropertySet(const Expr *E, RValue Src); 6298fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner 6308fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner 631883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner //===--------------------------------------------------------------------===// 632bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattner // Expression Emission 633883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner //===--------------------------------------------------------------------===// 634bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattner 635bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattner // Expressions are broken into three classes: scalar, complex, aggregate. 6360dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 6370dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitScalarExpr - Emit the computation of the specified expression of LLVM 6380dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// scalar type, returning the result. 6397f02f721d48772e4eee4fccd8af4f800be1bbc1eChris Lattner llvm::Value *EmitScalarExpr(const Expr *E); 6400dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 6413707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner /// EmitScalarConversion - Emit a conversion from the specified type to the 6423707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner /// specified destination type, both of which are LLVM scalar types. 6433707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner llvm::Value *EmitScalarConversion(llvm::Value *Src, QualType SrcTy, 6443707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner QualType DstTy); 6450dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 6464f1a7b380809b4ca19ad2daff61bc11cd1e979d8Chris Lattner /// EmitComplexToScalarConversion - Emit a conversion from the specified 6470dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// complex type to the specified destination type, where the destination type 6480dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// is an LLVM scalar type. 6494f1a7b380809b4ca19ad2daff61bc11cd1e979d8Chris Lattner llvm::Value *EmitComplexToScalarConversion(ComplexPairTy Src, QualType SrcTy, 6504f1a7b380809b4ca19ad2daff61bc11cd1e979d8Chris Lattner QualType DstTy); 6510dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 6520dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 653883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner /// EmitAggExpr - Emit the computation of the specified expression of 654883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner /// aggregate type. The result is computed into DestPtr. Note that if 655883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner /// DestPtr is null, the value of the aggregate expression is not needed. 656883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner void EmitAggExpr(const Expr *E, llvm::Value *DestPtr, bool VolatileDest); 6570dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 658b6ef18a2b06d6760459e1756a61f79ff496cee19Chris Lattner /// EmitComplexExpr - Emit the computation of the specified expression of 65923b1cdb0b5e089468bb8475b8ec9287af67b4b59Chris Lattner /// complex type, returning the result. 66058dee10ed2eee34035f62d1c2d32b3639e9182f8Chris Lattner ComplexPairTy EmitComplexExpr(const Expr *E); 6610dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 66223b1cdb0b5e089468bb8475b8ec9287af67b4b59Chris Lattner /// EmitComplexExprIntoAddr - Emit the computation of the specified expression 66323b1cdb0b5e089468bb8475b8ec9287af67b4b59Chris Lattner /// of complex type, storing into the specified Value*. 664190dbe203c2e892ac40f1786035c6c9be3f44a4cChris Lattner void EmitComplexExprIntoAddr(const Expr *E, llvm::Value *DestAddr, 665190dbe203c2e892ac40f1786035c6c9be3f44a4cChris Lattner bool DestIsVolatile); 6667f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar 6677f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar /// StoreComplexToAddr - Store a complex number into the specified address. 6687f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar void StoreComplexToAddr(ComplexPairTy V, llvm::Value *DestAddr, 6697f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar bool DestIsVolatile); 6709b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// LoadComplexFromAddr - Load a complex number from the specified address. 6719b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner ComplexPairTy LoadComplexFromAddr(llvm::Value *SrcAddr, bool SrcIsVolatile); 6722621fd1d6d3c5eadcae246859f62738645df7540Chris Lattner 6730dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// GenerateStaticBlockVarDecl - return the the static declaration of local 6740dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// variable. 67545206ecf708bf03b04db07c2476b9f862127a8b1Sanjiv Gupta llvm::GlobalValue * GenerateStaticBlockVarDecl(const VarDecl &D, 67645206ecf708bf03b04db07c2476b9f862127a8b1Sanjiv Gupta bool NoInit, 67745206ecf708bf03b04db07c2476b9f862127a8b1Sanjiv Gupta const char *Separator, 67845206ecf708bf03b04db07c2476b9f862127a8b1Sanjiv Gupta llvm::GlobalValue 67945206ecf708bf03b04db07c2476b9f862127a8b1Sanjiv Gupta ::LinkageTypes Linkage); 6800ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar 6810dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // GenerateStaticCXXBlockVarDecl - return the static declaration of a local 6820dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // variable. Performs initialization of the variable if necessary. 683e1b29efab32d02e114046d33cca242a88585bf8aAnders Carlsson llvm::GlobalValue *GenerateStaticCXXBlockVarDecl(const VarDecl &D); 684e1b29efab32d02e114046d33cca242a88585bf8aAnders Carlsson 6850ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar //===--------------------------------------------------------------------===// 6860ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar // Internal Helpers 6870ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar //===--------------------------------------------------------------------===// 6880dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 6890946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner /// ContainsLabel - Return true if the statement contains a label in it. If 6900946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner /// this statement is not executed normally, it not containing a label means 6910946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner /// that we can just remove the code. 6920946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner static bool ContainsLabel(const Stmt *S, bool IgnoreCaseStmts = false); 6930dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 6944bc0455d826e9634b7a68c0d06146edd633c9453Daniel Dunbar /// ConstantFoldsToSimpleInteger - If the specified expression does not fold 69531a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// to a constant, or if it does but contains a label, return 0. If it 69631a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// constant folds to 'true' and does not contain a label, return 1, if it 69731a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// constant folds to 'false' and does not contain a label, return -1. 69831a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner int ConstantFoldsToSimpleInteger(const Expr *Cond); 6990dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 70031a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// EmitBranchOnBoolExpr - Emit a branch on a boolean condition (e.g. for an 70131a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// if statement) to the specified blocks. Based on the condition, this might 70231a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// try to simplify the codegen of the conditional based on the branch. 7039bc47e29dce8f095be7a6d07dbb02a5a7a112949Chris Lattner void EmitBranchOnBoolExpr(const Expr *Cond, llvm::BasicBlock *TrueBlock, 7044bc0455d826e9634b7a68c0d06146edd633c9453Daniel Dunbar llvm::BasicBlock *FalseBlock); 70531a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattnerprivate: 7060dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 7070ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar /// EmitIndirectSwitches - Emit code for all of the switch 7080ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar /// instructions in IndirectSwitches. 7090ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar void EmitIndirectSwitches(); 7105627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar 71129e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar void EmitReturnOfRValue(RValue RV, QualType Ty); 71229e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar 7135627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// ExpandTypeFromArgs - Reconstruct a structure of type \arg Ty 7145627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// from function arguments into \arg Dst. See ABIArgInfo::Expand. 7155627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// 7165627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// \param AI - The first function argument of the expansion. 7175627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// \return The argument following the last expanded function 7185627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// argument. 7190dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump llvm::Function::arg_iterator 7205627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar ExpandTypeFromArgs(QualType Ty, LValue Dst, 7215627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar llvm::Function::arg_iterator AI); 7225627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar 7230dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// ExpandTypeToArgs - Expand an RValue \arg Src, with the LLVM type for \arg 7240dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// Ty, into individual arguments on the provided vector \arg Args. See 7250dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// ABIArgInfo::Expand. 7260dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump void ExpandTypeToArgs(QualType Ty, RValue Src, 7275627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar llvm::SmallVector<llvm::Value*, 16> &Args); 728c8c7b187adcd989e01a9fba1ebead6c2abd770c9Anders Carlsson 729c8c7b187adcd989e01a9fba1ebead6c2abd770c9Anders Carlsson llvm::Value* EmitAsmInput(const AsmStmt &S, TargetInfo::ConstraintInfo Info, 730c8c7b187adcd989e01a9fba1ebead6c2abd770c9Anders Carlsson const Expr *InputExpr, std::string &ConstraintStr); 7310dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 732c71c845fe77ee1f891d60232ec320912d88557eeAnders Carlsson /// EmitCleanupBlock - emits a single cleanup block. 733c71c845fe77ee1f891d60232ec320912d88557eeAnders Carlsson void EmitCleanupBlock(); 734c71c845fe77ee1f891d60232ec320912d88557eeAnders Carlsson 73587eaf17cc88516277e4389dfa15df93ecfdce559Anders Carlsson /// AddBranchFixup - adds a branch instruction to the list of fixups for the 73687eaf17cc88516277e4389dfa15df93ecfdce559Anders Carlsson /// current cleanup scope. 73787eaf17cc88516277e4389dfa15df93ecfdce559Anders Carlsson void AddBranchFixup(llvm::BranchInst *BI); 7380dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 7395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 7405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace CodeGen 7415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace clang 7425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#endif 744