CodeGenFunction.h revision 8a2b4b1c5b960710db95e9b296d9a600aee37c00
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; 58e896d98548b02223c7740d807a0aa6e20fba7079Anders Carlsson class CGDebugInfo; 59bb36d331f439f49859efcfb4435c61762fbba6f9Daniel Dunbar class CGFunctionInfo; 600dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump class CGRecordLayout; 610dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// CodeGenFunction - This class organizes the per-function state that is used 635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// while generating LLVM code. 645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CodeGenFunction { 658a219ceda2b5afd447e7199b9c53079bead31b89Anders Carlsson CodeGenFunction(const CodeGenFunction&); // DO NOT IMPLEMENT 668a219ceda2b5afd447e7199b9c53079bead31b89Anders Carlsson void operator=(const CodeGenFunction&); // DO NOT IMPLEMENT 67bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattnerpublic: 685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CodeGenModule &CGM; // Per-module state. 695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer TargetInfo &Target; 700dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 7158dee10ed2eee34035f62d1c2d32b3639e9182f8Chris Lattner typedef std::pair<llvm::Value *, llvm::Value *> ComplexPairTy; 7245d196b8387dcefc4df26cda114fa34c6528e928Daniel Dunbar CGBuilderTy Builder; 730dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 74c8aa5f1f264fb230c38182adab944232bb160c2bChris Lattner // Holds the Decl for the current function or method 754111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner const Decl *CurFuncDecl; 7688b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar const CGFunctionInfo *CurFnInfo; 77391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner QualType FnRetTy; 785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::Function *CurFn; 795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 805ca2084cf9b529563209429857f01fdae9dcdfa5Daniel Dunbar /// ReturnBlock - Unified return block. 815ca2084cf9b529563209429857f01fdae9dcdfa5Daniel Dunbar llvm::BasicBlock *ReturnBlock; 820dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// ReturnValue - The temporary alloca to hold the return value. This is null 830dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// iff the function has no return value. 845ca2084cf9b529563209429857f01fdae9dcdfa5Daniel Dunbar llvm::Instruction *ReturnValue; 850dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// AllocaInsertPoint - This is an instruction in the entry block before which 875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// we prefer to insert allocas. 885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::Instruction *AllocaInsertPt; 890ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar 905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const llvm::Type *LLVMIntTy; 917b66000bdfc2684351fb03208e672f23012ed569Hartmut Kaiser uint32_t LLVMPointerWidth; 9218ccc7776ad6288c5f630dc7967fb99d099c9cd9Daniel Dunbar 9318ccc7776ad6288c5f630dc7967fb99d099c9cd9Daniel Dunbarpublic: 94fa1f756f88f4e6f3da2673082fdc1e8f54bccd6fAnders Carlsson /// ObjCEHValueStack - Stack of Objective-C exception values, used for 95fa1f756f88f4e6f3da2673082fdc1e8f54bccd6fAnders Carlsson /// rethrows. 96273558fbd891a0872e620e0d3d109b92c1160d72Anders Carlsson llvm::SmallVector<llvm::Value*, 8> ObjCEHValueStack; 970dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 986fc559136b8ef98bfb824a0fd49df385405f2879Anders Carlsson /// PushCleanupBlock - Push a new cleanup entry on the stack and set the 996fc559136b8ef98bfb824a0fd49df385405f2879Anders Carlsson /// passed in block as the cleanup block. 1006fc559136b8ef98bfb824a0fd49df385405f2879Anders Carlsson void PushCleanupBlock(llvm::BasicBlock *CleanupBlock); 101bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson 1020dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// CleanupBlockInfo - A struct representing a popped cleanup block. 103bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson struct CleanupBlockInfo { 104bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson /// CleanupBlock - the cleanup block 105bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson llvm::BasicBlock *CleanupBlock; 1060dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1070dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// SwitchBlock - the block (if any) containing the switch instruction used 1080dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// for jumping to the final destination. 109bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson llvm::BasicBlock *SwitchBlock; 1100dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 111bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson /// EndBlock - the default destination for the switch instruction. 112bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson llvm::BasicBlock *EndBlock; 1130dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1140dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump CleanupBlockInfo(llvm::BasicBlock *cb, llvm::BasicBlock *sb, 115bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson llvm::BasicBlock *eb) 116bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson : CleanupBlock(cb), SwitchBlock(sb), EndBlock(eb) {} 117bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson }; 118bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson 119bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson /// PopCleanupBlock - Will pop the cleanup entry on the stack, process all 1200dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// branch fixups and return a block info struct with the switch block and end 1210dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// block. 122bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson CleanupBlockInfo PopCleanupBlock(); 1230dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1240dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// CleanupScope - RAII object that will create a cleanup block and set the 1250dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// insert point to that block. When destructed, it sets the insert point to 1260dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// the previous block and pushes a new cleanup entry on the stack. 1270d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson class CleanupScope { 1280d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson CodeGenFunction& CGF; 1290d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson llvm::BasicBlock *CurBB; 1306fc559136b8ef98bfb824a0fd49df385405f2879Anders Carlsson llvm::BasicBlock *CleanupBB; 1310dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1320d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson public: 1330d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson CleanupScope(CodeGenFunction &cgf) 1340d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson : CGF(cgf), CurBB(CGF.Builder.GetInsertBlock()) { 1356fc559136b8ef98bfb824a0fd49df385405f2879Anders Carlsson CleanupBB = CGF.createBasicBlock("cleanup"); 1366fc559136b8ef98bfb824a0fd49df385405f2879Anders Carlsson CGF.Builder.SetInsertPoint(CleanupBB); 1370d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson } 1380dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1390d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson ~CleanupScope() { 1406fc559136b8ef98bfb824a0fd49df385405f2879Anders Carlsson CGF.PushCleanupBlock(CleanupBB); 1410d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson CGF.Builder.SetInsertPoint(CurBB); 1420d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson } 1430d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson }; 1440d5c6851393d260dfb5ab0420b50adc173e1c549Anders Carlsson 145c71c845fe77ee1f891d60232ec320912d88557eeAnders Carlsson /// EmitCleanupBlocks - Takes the old cleanup stack size and emits the cleanup 146c71c845fe77ee1f891d60232ec320912d88557eeAnders Carlsson /// blocks that have been added. 147c71c845fe77ee1f891d60232ec320912d88557eeAnders Carlsson void EmitCleanupBlocks(size_t OldCleanupStackSize); 148c71c845fe77ee1f891d60232ec320912d88557eeAnders Carlsson 14987eaf17cc88516277e4389dfa15df93ecfdce559Anders Carlsson /// EmitBranchThroughCleanup - Emit a branch from the current insert block 15087eaf17cc88516277e4389dfa15df93ecfdce559Anders Carlsson /// through the cleanup handling code (if any) and then on to \arg Dest. 15187eaf17cc88516277e4389dfa15df93ecfdce559Anders Carlsson /// 1520dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// FIXME: Maybe this should really be in EmitBranch? Don't we always want 15387eaf17cc88516277e4389dfa15df93ecfdce559Anders Carlsson /// this behavior for branches? 15487eaf17cc88516277e4389dfa15df93ecfdce559Anders Carlsson void EmitBranchThroughCleanup(llvm::BasicBlock *Dest); 1550dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1567f02f721d48772e4eee4fccd8af4f800be1bbc1eChris Lattnerprivate: 157e896d98548b02223c7740d807a0aa6e20fba7079Anders Carlsson CGDebugInfo* DebugInfo; 15809429b962811f2c0a7a81a1b0a89f96f5878b20cMike Stump 1590dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// LabelIDs - Track arbitrary ids assigned to labels for use in implementing 1600dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// the GCC address-of-label extension and indirect goto. IDs are assigned to 1610dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// labels inside getIDForAddrOfLabel(). 1620ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar std::map<const LabelStmt*, unsigned> LabelIDs; 1630ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar 1640ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar /// IndirectSwitches - Record the list of switches for indirect 1650dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// gotos. Emission of the actual switching code needs to be delayed until all 1660dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// AddrLabelExprs have been seen. 1670ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar std::vector<llvm::SwitchInst*> IndirectSwitches; 1680ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar 1690dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// LocalDeclMap - This keeps track of the LLVM allocas or globals for local C 1700dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// decls. 1715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::DenseMap<const Decl*, llvm::Value*> LocalDeclMap; 1725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// LabelMap - This keeps track of the LLVM basic block for each C label. 1745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::DenseMap<const LabelStmt*, llvm::BasicBlock*> LabelMap; 1750dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 1760dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // BreakContinueStack - This keeps track of where break and continue 177e4b6d342c29d5cb9d311756100df1603810fa892Anders Carlsson // statements should jump to. 178da13870e99fe33934b2122f06528a5063f78ae4cChris Lattner struct BreakContinue { 179e4b6d342c29d5cb9d311756100df1603810fa892Anders Carlsson BreakContinue(llvm::BasicBlock *bb, llvm::BasicBlock *cb) 180e4b6d342c29d5cb9d311756100df1603810fa892Anders Carlsson : BreakBlock(bb), ContinueBlock(cb) {} 1810dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 182da13870e99fe33934b2122f06528a5063f78ae4cChris Lattner llvm::BasicBlock *BreakBlock; 183da13870e99fe33934b2122f06528a5063f78ae4cChris Lattner llvm::BasicBlock *ContinueBlock; 1840dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump }; 185da13870e99fe33934b2122f06528a5063f78ae4cChris Lattner llvm::SmallVector<BreakContinue, 8> BreakContinueStack; 18618ccc7776ad6288c5f630dc7967fb99d099c9cd9Daniel Dunbar 1870dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// SwitchInsn - This is nearest current switch instruction. It is null if if 1880dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// current context is not in a switch. 18951b09f2c528c8460b5465c676173324e44176d62Devang Patel llvm::SwitchInst *SwitchInsn; 19051b09f2c528c8460b5465c676173324e44176d62Devang Patel 1910dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// CaseRangeBlock - This block holds if condition check for last case 19280fd5f96e6805ac43aab99faabd5b4c8b19551b7Devang Patel /// statement range in current switch instruction. 193c049e4f406a7f7179eba98659044a32508e53289Devang Patel llvm::BasicBlock *CaseRangeBlock; 194c049e4f406a7f7179eba98659044a32508e53289Devang Patel 1959834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar /// InvokeDest - This is the nearest exception target for calls 1969834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar /// which can unwind, when exceptions are being used. 1979834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar llvm::BasicBlock *InvokeDest; 1989834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar 1990dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // VLASizeMap - This keeps track of the associated size for each VLA type. 2000dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // FIXME: Maybe this could be a stack of maps that is pushed/popped as we 2010dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // enter/leave scopes. 202dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson llvm::DenseMap<const VariableArrayType*, llvm::Value*> VLASizeMap; 2030dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 2044cc1a4703363ff940b6273aeef9d96a87edeb04bAnders Carlsson /// DidCallStackSave - Whether llvm.stacksave has been called. Used to avoid 2054cc1a4703363ff940b6273aeef9d96a87edeb04bAnders Carlsson /// calling llvm.stacksave for multiple VLAs in the same scope. 2064cc1a4703363ff940b6273aeef9d96a87edeb04bAnders Carlsson bool DidCallStackSave; 20709429b962811f2c0a7a81a1b0a89f96f5878b20cMike Stump 2086ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson struct CleanupEntry { 2096ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson /// CleanupBlock - The block of code that does the actual cleanup. 2106ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson llvm::BasicBlock *CleanupBlock; 2110dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 2126ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson /// Blocks - Basic blocks that were emitted in the current cleanup scope. 213bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson std::vector<llvm::BasicBlock *> Blocks; 2146ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson 2156ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson /// BranchFixups - Branch instructions to basic blocks that haven't been 2166ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson /// inserted into the current function yet. 217bb66f9f2e454135b86462d121629275b6ac38e96Anders Carlsson std::vector<llvm::BranchInst *> BranchFixups; 2186ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson 2196ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson explicit CleanupEntry(llvm::BasicBlock *cb) 2206ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson : CleanupBlock(cb) {} 2210dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 222bd6fa3d032acd7eafc6c10827c41103df45beab7Anders Carlsson ~CleanupEntry() { 223bd6fa3d032acd7eafc6c10827c41103df45beab7Anders Carlsson assert(Blocks.empty() && "Did not empty blocks!"); 224bd6fa3d032acd7eafc6c10827c41103df45beab7Anders Carlsson assert(BranchFixups.empty() && "Did not empty branch fixups!"); 225bd6fa3d032acd7eafc6c10827c41103df45beab7Anders Carlsson } 2266ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson }; 2270dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 2286ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson /// CleanupEntries - Stack of cleanup entries. 2296ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson llvm::SmallVector<CleanupEntry, 8> CleanupEntries; 2306ccc47698d0311ddabf32fa0f6db8e4f09ac96f8Anders Carlsson 231bd6fa3d032acd7eafc6c10827c41103df45beab7Anders Carlsson typedef llvm::DenseMap<llvm::BasicBlock*, size_t> BlockScopeMap; 232bd6fa3d032acd7eafc6c10827c41103df45beab7Anders Carlsson 233bd6fa3d032acd7eafc6c10827c41103df45beab7Anders Carlsson /// BlockScopes - Map of which "cleanup scope" scope basic blocks have. 234bd6fa3d032acd7eafc6c10827c41103df45beab7Anders Carlsson BlockScopeMap BlockScopes; 2350dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 2365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 2375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CodeGenFunction(CodeGenModule &cgm); 2380dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 2395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ASTContext &getContext() const; 240e896d98548b02223c7740d807a0aa6e20fba7079Anders Carlsson CGDebugInfo *getDebugInfo() { return DebugInfo; } 2415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2429834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar llvm::BasicBlock *getInvokeDest() { return InvokeDest; } 2439834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar void setInvokeDest(llvm::BasicBlock *B) { InvokeDest = B; } 2449834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar 2459834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar //===--------------------------------------------------------------------===// 2469834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar // Objective-C 2479834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar //===--------------------------------------------------------------------===// 2489834ffbe54788239c8361d3cfe5826fd277ddfb2Daniel Dunbar 249391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner void GenerateObjCMethod(const ObjCMethodDecl *OMD); 250af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 2510dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump void StartObjCMethod(const ObjCMethodDecl *MD, 252679a502d462ef819e6175b58e255ca3f3391e7cfFariborz Jahanian const ObjCContainerDecl *CD); 253af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 2540dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// GenerateObjCGetter - Synthesize an Objective-C property getter function. 255fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian void GenerateObjCGetter(ObjCImplementationDecl *IMP, 256fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian const ObjCPropertyImplDecl *PID); 257af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 2580dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// GenerateObjCSetter - Synthesize an Objective-C property setter function 2590dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// for the given property. 260fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian void GenerateObjCSetter(ObjCImplementationDecl *IMP, 261fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian const ObjCPropertyImplDecl *PID); 262af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 2634e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump //===--------------------------------------------------------------------===// 2644e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump // Block Bits 2654e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump //===--------------------------------------------------------------------===// 2664e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump 2678a2b4b1c5b960710db95e9b296d9a600aee37c00Mike Stump llvm::Value *BuildBlockLiteralTmp(const BlockExpr *); 2684e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump llvm::Constant *BuildDescriptorBlockDecl(uint64_t Size); 2694e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump 27067a6448a8d52ae46d1cba4e474f9f6b3968d2ff9Mike Stump /// BlockInfo - Information to generate a block literal. 271d5cab5435371b8cc74a9e05ebd40b5995ebad149Anders Carlsson struct BlockInfo { 27267a6448a8d52ae46d1cba4e474f9f6b3968d2ff9Mike Stump /// BlockLiteralTy - The type of the block literal. 273d5cab5435371b8cc74a9e05ebd40b5995ebad149Anders Carlsson const llvm::Type *BlockLiteralTy; 274d5cab5435371b8cc74a9e05ebd40b5995ebad149Anders Carlsson 27567a6448a8d52ae46d1cba4e474f9f6b3968d2ff9Mike Stump /// Name - the name of the function this block was created for, if any 27630395dd7b77ec1abfae9ebfcacf86f5d72b91fefMike Stump const char *Name; 27767a6448a8d52ae46d1cba4e474f9f6b3968d2ff9Mike Stump 27830395dd7b77ec1abfae9ebfcacf86f5d72b91fefMike Stump BlockInfo(const llvm::Type *blt, const char *n) 27967a6448a8d52ae46d1cba4e474f9f6b3968d2ff9Mike Stump : BlockLiteralTy(blt), Name(n) {} 280d5cab5435371b8cc74a9e05ebd40b5995ebad149Anders Carlsson }; 28109429b962811f2c0a7a81a1b0a89f96f5878b20cMike Stump 282d5cab5435371b8cc74a9e05ebd40b5995ebad149Anders Carlsson llvm::Function *GenerateBlockFunction(const BlockExpr *Expr, 2834e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump const BlockInfo& Info, 2848a2b4b1c5b960710db95e9b296d9a600aee37c00Mike Stump uint64_t &Size, uint64_t &Align, 2858a2b4b1c5b960710db95e9b296d9a600aee37c00Mike Stump llvm::SmallVector<ValueDecl *, 8> &subBlockDeclRefDecls); 2864e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump 2874e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump ImplicitParamDecl *BlockStructDecl; 2884e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump 2894e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump ImplicitParamDecl *getBlockStructDecl() { return BlockStructDecl; } 2904e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump 2914e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump llvm::Value *LoadBlockStruct(); 2924e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump 2934e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump /// BlockHasCopyDispose - True iff the block uses copy/dispose. 2944e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump bool BlockHasCopyDispose; 2954e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump 2968a2b4b1c5b960710db95e9b296d9a600aee37c00Mike Stump /// BlockDeclRefDecls - Decls from BlockDeclRefExprs in apperance order 2978a2b4b1c5b960710db95e9b296d9a600aee37c00Mike Stump /// in a block literal. Decls without names are used for padding. 2988a2b4b1c5b960710db95e9b296d9a600aee37c00Mike Stump llvm::SmallVector<ValueDecl *, 8> BlockDeclRefDecls; 2998a2b4b1c5b960710db95e9b296d9a600aee37c00Mike Stump 3008a2b4b1c5b960710db95e9b296d9a600aee37c00Mike Stump /// BlockOffset - The offset in bytes for the next allocation of an 3018a2b4b1c5b960710db95e9b296d9a600aee37c00Mike Stump /// imported block variable. 3024e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump uint64_t BlockOffset; 3038a2b4b1c5b960710db95e9b296d9a600aee37c00Mike Stump /// BlockAlign - Maximal alignment needed for the Block expressed in bytes. 3048a2b4b1c5b960710db95e9b296d9a600aee37c00Mike Stump uint64_t BlockAlign; 3058a2b4b1c5b960710db95e9b296d9a600aee37c00Mike Stump /// getBlockOffset - Offset for next allocated variable used in a BlockExpr. 3068a2b4b1c5b960710db95e9b296d9a600aee37c00Mike Stump uint64_t getBlockOffset(ValueDecl *D) { 3078a2b4b1c5b960710db95e9b296d9a600aee37c00Mike Stump uint64_t Size = getContext().getTypeSize(D->getType()) / 8; 3088a2b4b1c5b960710db95e9b296d9a600aee37c00Mike Stump uint64_t Align = getContext().getDeclAlignInBytes(D); 3098a2b4b1c5b960710db95e9b296d9a600aee37c00Mike Stump 3108a2b4b1c5b960710db95e9b296d9a600aee37c00Mike Stump assert ((Align > 0) && "alignment must be 1 byte or more"); 3118a2b4b1c5b960710db95e9b296d9a600aee37c00Mike Stump 3128a2b4b1c5b960710db95e9b296d9a600aee37c00Mike Stump uint64_t OldOffset = BlockOffset; 3138a2b4b1c5b960710db95e9b296d9a600aee37c00Mike Stump 3144e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump // Ensure proper alignment, even if it means we have to have a gap 3158a2b4b1c5b960710db95e9b296d9a600aee37c00Mike Stump BlockOffset = llvm::RoundUpToAlignment(BlockOffset, Align); 3168a2b4b1c5b960710db95e9b296d9a600aee37c00Mike Stump BlockAlign = std::max(Align, BlockAlign); 3174e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump 3188a2b4b1c5b960710db95e9b296d9a600aee37c00Mike Stump uint64_t Pad = BlockOffset - OldOffset; 3198a2b4b1c5b960710db95e9b296d9a600aee37c00Mike Stump llvm::ArrayType::get(llvm::Type::Int8Ty, Pad); 3208a2b4b1c5b960710db95e9b296d9a600aee37c00Mike Stump QualType PadTy = getContext().getConstantArrayType(getContext().CharTy, 3218a2b4b1c5b960710db95e9b296d9a600aee37c00Mike Stump llvm::APInt(32, Pad), 3228a2b4b1c5b960710db95e9b296d9a600aee37c00Mike Stump ArrayType::Normal, 0); 3238a2b4b1c5b960710db95e9b296d9a600aee37c00Mike Stump ValueDecl *PadDecl = VarDecl::Create(getContext(), 0, SourceLocation(), 3248a2b4b1c5b960710db95e9b296d9a600aee37c00Mike Stump 0, QualType(PadTy), VarDecl::None, SourceLocation()); 3258a2b4b1c5b960710db95e9b296d9a600aee37c00Mike Stump BlockDeclRefDecls.push_back(PadDecl); 3268a2b4b1c5b960710db95e9b296d9a600aee37c00Mike Stump BlockDeclRefDecls.push_back(D); 3278a2b4b1c5b960710db95e9b296d9a600aee37c00Mike Stump 3284e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump BlockOffset += Size; 3294e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump return BlockOffset-Size; 3304e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump } 3314e7a1f7682d94811bd41fca8aefccc38f686db23Mike Stump std::map<Decl*, uint64_t> BlockDecls; 33230395dd7b77ec1abfae9ebfcacf86f5d72b91fefMike Stump 333bd012ff1fa088181646a784f385b28867372d434Daniel Dunbar void GenerateCode(const FunctionDecl *FD, 334bd012ff1fa088181646a784f385b28867372d434Daniel Dunbar llvm::Function *Fn); 3350dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump void StartFunction(const Decl *D, QualType RetTy, 3367c086516f3cc9fba2733b1919973206c6ba4b171Daniel Dunbar llvm::Function *Fn, 3372284ac9ec80299fcdefae9a2787cf85105a0f203Daniel Dunbar const FunctionArgList &Args, 3382284ac9ec80299fcdefae9a2787cf85105a0f203Daniel Dunbar SourceLocation StartLoc); 339a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 3400dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitReturnBlock - Emit the unified return block, trying to avoid its 3410dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// emission when possible. 3421c1d6074f5a0296dd273362655b1b8f9057289e3Daniel Dunbar void EmitReturnBlock(); 3431c1d6074f5a0296dd273362655b1b8f9057289e3Daniel Dunbar 3440dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// FinishFunction - Complete IR generation of the current function. It is 3450dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// legal to call this function even if there is no current insertion point. 346af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar void FinishFunction(SourceLocation EndLoc=SourceLocation()); 34717b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar 3480dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitFunctionProlog - Emit the target specific LLVM code to load the 3490dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// arguments for the given function. This is also responsible for naming the 3500dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// LLVM function arguments. 35188b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar void EmitFunctionProlog(const CGFunctionInfo &FI, 35288b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar llvm::Function *Fn, 35317b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar const FunctionArgList &Args); 35417b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar 3550dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitFunctionEpilog - Emit the target specific LLVM code to return the 3560dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// given temporary. 35788b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar void EmitFunctionEpilog(const CGFunctionInfo &FI, llvm::Value *ReturnValue); 35817b708d61827cd86278e9580b041dd6cbadf07d3Daniel Dunbar 3598b1a343b6b360d63d5dc8a6beb841ce4414c1e00Daniel Dunbar const llvm::Type *ConvertTypeForMem(QualType T); 3605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const llvm::Type *ConvertType(QualType T); 361c8aa5f1f264fb230c38182adab944232bb160c2bChris Lattner 3620dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// LoadObjCSelf - Load the value of self. This function is only valid while 3630dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// generating code for an Objective-C method. 364c8aa5f1f264fb230c38182adab944232bb160c2bChris Lattner llvm::Value *LoadObjCSelf(); 3650dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 3660dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// TypeOfSelfObject - Return type of object that this self represents. 36745012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian QualType TypeOfSelfObject(); 3684111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner 3694111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner /// isObjCPointerType - Return true if the specificed AST type will map onto 3704111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner /// some Objective-C pointer type. 3714111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner static bool isObjCPointerType(QualType T); 3724111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner 3735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// hasAggregateLLVMType - Return true if the specified AST type will map into 3745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// an aggregate LLVM type or is void. 3755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool hasAggregateLLVMType(QualType T); 37655e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar 37755e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar /// createBasicBlock - Create an LLVM basic block. 3780dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump llvm::BasicBlock *createBasicBlock(const char *Name="", 37955e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar llvm::Function *Parent=0, 38055e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar llvm::BasicBlock *InsertBefore=0) { 38129ea6729155c759836be4b5453bee9ef8e1e97eeDaniel Dunbar#ifdef NDEBUG 38229ea6729155c759836be4b5453bee9ef8e1e97eeDaniel Dunbar return llvm::BasicBlock::Create("", Parent, InsertBefore); 38329ea6729155c759836be4b5453bee9ef8e1e97eeDaniel Dunbar#else 38455e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar return llvm::BasicBlock::Create(Name, Parent, InsertBefore); 38529ea6729155c759836be4b5453bee9ef8e1e97eeDaniel Dunbar#endif 38655e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar } 3870dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 3885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getBasicBlockForLabel - Return the LLVM basicblock that the specified 3895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// label maps to. 3905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::BasicBlock *getBasicBlockForLabel(const LabelStmt *S); 3910dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 3920dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitBlock - Emit the given block \arg BB and set it as the insert point, 3930dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// adding a fall-through branch from the current insert block if 3940dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// necessary. It is legal to call this function even if there is no current 3950dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// insertion point. 396a0c21a8faa79e88ac432d116eca58f7a7217195dDaniel Dunbar /// 3970dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// IsFinished - If true, indicates that the caller has finished emitting 3980dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// branches to the given block and does not expect to emit code into it. This 3990dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// means the block can be ignored if it is unreachable. 400a0c21a8faa79e88ac432d116eca58f7a7217195dDaniel Dunbar void EmitBlock(llvm::BasicBlock *BB, bool IsFinished=false); 401824e3bd76b2e32db2ec6e4d2d113413e518d1c63Daniel Dunbar 4020dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitBranch - Emit a branch to the specified basic block from the current 4030dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// insert block, taking care to avoid creation of branches from dummy 4040dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// blocks. It is legal to call this function even if there is no current 4050dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// insertion point. 4065e08ad3cc62ab94649959ae227a9a411a729bf49Daniel Dunbar /// 4070dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// This function clears the current insertion point. The caller should follow 4080dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// calls to this function with calls to Emit*Block prior to generation new 4090dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// code. 410d57a871339c7c98d58d93108b806f59bdf4e13e2Daniel Dunbar void EmitBranch(llvm::BasicBlock *Block); 411d57a871339c7c98d58d93108b806f59bdf4e13e2Daniel Dunbar 4120dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// HaveInsertPoint - True if an insertion point is defined. If not, this 4130dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// indicates that the current code being emitted is unreachable. 4140dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump bool HaveInsertPoint() const { 415a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar return Builder.GetInsertBlock() != 0; 416a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar } 417a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 4180dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EnsureInsertPoint - Ensure that an insertion point is defined so that 4190dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// emitted IR has a place to go. Note that by definition, if this function 4200dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// creates a block then that block is unreachable; callers may do better to 4210dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// detect when no insertion point is defined and simply skip IR generation. 422a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar void EnsureInsertPoint() { 423a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar if (!HaveInsertPoint()) 424a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar EmitBlock(createBasicBlock()); 425a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar } 4260dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 427488e993a135ce700b982bf099c3d6b856301d642Daniel Dunbar /// ErrorUnsupported - Print out an error that codegen doesn't support the 428dc5e8268292046114ffe02e48773572a91a310f1Chris Lattner /// specified stmt yet. 42990df4b6661968a84bf64baee489bb2f6d948fcc1Daniel Dunbar void ErrorUnsupported(const Stmt *S, const char *Type, 43090df4b6661968a84bf64baee489bb2f6d948fcc1Daniel Dunbar bool OmitOnError=false); 4315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 4335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Helpers 4345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 4350dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 4365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// CreateTempAlloca - This creates a alloca and inserts it into the entry 4375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// block. 4385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::AllocaInst *CreateTempAlloca(const llvm::Type *Ty, 4395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *Name = "tmp"); 4400dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 4415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EvaluateExprAsBool - Perform the usual unary conversions on the specified 4425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// expression and compare the result against zero, returning an Int1Ty value. 4435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::Value *EvaluateExprAsBool(const Expr *E); 4445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4459b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// EmitAnyExpr - Emit code to compute the specified expression which can have 4469b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// any type. The result is returned as an RValue struct. If this is an 4479b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// aggregate expression, the aggloc/agglocvolatile arguments indicate where 4489b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// the result should be returned. 4490dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump RValue EmitAnyExpr(const Expr *E, llvm::Value *AggLoc = 0, 4509b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner bool isAggLocVolatile = false); 451d9363c3a80168283b3da518b4e17f545a6246857Devang Patel 4520dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // EmitVAListRef - Emit a "reference" to a va_list; this is either the address 4530dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // or the value of the expression, depending on how va_list is defined. 4544fd0aa5803357d8c72eeac2cae15e12649ea08feEli Friedman llvm::Value *EmitVAListRef(const Expr *E); 4554fd0aa5803357d8c72eeac2cae15e12649ea08feEli Friedman 4560dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitAnyExprToTemp - Similary to EmitAnyExpr(), however, the result will 4570dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// always be accessible even if no aggregate location is provided. 4580dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump RValue EmitAnyExprToTemp(const Expr *E, llvm::Value *AggLoc = 0, 45946f45b9bec4a265ad8400a538e5ec3a5683617f1Daniel Dunbar bool isAggLocVolatile = false); 46046f45b9bec4a265ad8400a538e5ec3a5683617f1Daniel Dunbar 4617482d12c345c6391f8956850545e2d4aa7701ce6Daniel Dunbar void EmitAggregateCopy(llvm::Value *DestPtr, llvm::Value *SrcPtr, 4627482d12c345c6391f8956850545e2d4aa7701ce6Daniel Dunbar QualType EltTy); 4637482d12c345c6391f8956850545e2d4aa7701ce6Daniel Dunbar 4647482d12c345c6391f8956850545e2d4aa7701ce6Daniel Dunbar void EmitAggregateClear(llvm::Value *DestPtr, QualType Ty); 4657482d12c345c6391f8956850545e2d4aa7701ce6Daniel Dunbar 46651b09f2c528c8460b5465c676173324e44176d62Devang Patel /// StartBlock - Start new block named N. If insert block is a dummy block 46751b09f2c528c8460b5465c676173324e44176d62Devang Patel /// then reuse it. 46851b09f2c528c8460b5465c676173324e44176d62Devang Patel void StartBlock(const char *N); 46951b09f2c528c8460b5465c676173324e44176d62Devang Patel 47088a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel /// getCGRecordLayout - Return record layout info. 47188a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel const CGRecordLayout *getCGRecordLayout(CodeGenTypes &CGT, QualType RTy); 472813733577d33ec56479667b49e1bff42dc6bba90Lauro Ramos Venancio 473813733577d33ec56479667b49e1bff42dc6bba90Lauro Ramos Venancio /// GetAddrOfStaticLocalVar - Return the address of a static local variable. 474248a753f6b670692523c99afaeb8fe98f7ae3ca7Steve Naroff llvm::Constant *GetAddrOfStaticLocalVar(const VarDecl *BVD); 4754f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman 476dde0a94120915fa925d1ffcdb997c7b44dc9fa21Anders Carlsson /// GetAddrOfLocalVar - Return the address of a local variable. 477dde0a94120915fa925d1ffcdb997c7b44dc9fa21Anders Carlsson llvm::Value *GetAddrOfLocalVar(const VarDecl *VD); 4780dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 4794f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman /// getAccessedFieldNo - Given an encoded value and a result number, return 4804f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman /// the input field number being accessed. 4814f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman static unsigned getAccessedFieldNo(unsigned Idx, const llvm::Constant *Elts); 4824f8d123e3e2c260de3377208106ddba87cee28b4Dan Gohman 4830ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar unsigned GetIDForAddrOfLabel(const LabelStmt *L); 4840ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar 4850dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitMemSetToZero - Generate code to memset a value of the given type to 0. 4863d8400d9a61aa4b63ff35e5cede405b32a41425eAnders Carlsson void EmitMemSetToZero(llvm::Value *DestPtr, QualType Ty); 487ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson 488ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson // EmitVAArg - Generate code to get an argument from the passed in pointer 489ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson // and update it accordingly. The return value is a pointer to the argument. 490ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson // FIXME: We should be able to get rid of this method and use the va_arg 4910dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump // instruction in LLVM instead once it works well enough. 492ddf7cac45d85b73127adbbd91a2b28fc7291c57eAnders Carlsson llvm::Value *EmitVAArg(llvm::Value *VAListAddr, QualType Ty); 493f666b7780d04186521adcaedb0e15dfa4d5e6933Anders Carlsson 49460d35413662ebdcd1d31e34a8a7c665eb6977f1eAnders Carlsson // EmitVLASize - Generate code for any VLA size expressions that might occur 49560d35413662ebdcd1d31e34a8a7c665eb6977f1eAnders Carlsson // in a variably modified type. If Ty is a VLA, will return the value that 49660d35413662ebdcd1d31e34a8a7c665eb6977f1eAnders Carlsson // corresponds to the size in bytes of the VLA type. Will return 0 otherwise. 49760d35413662ebdcd1d31e34a8a7c665eb6977f1eAnders Carlsson llvm::Value *EmitVLASize(QualType Ty); 4980dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 499dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson // GetVLASize - Returns an LLVM value that corresponds to the size in bytes 500dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson // of a variable length array type. 501dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson llvm::Value *GetVLASize(const VariableArrayType *); 502dcc90d87e6430c643b4311ae5b0089535bca41f7Anders Carlsson 5035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 5045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Declaration Emission 5055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 5060dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 5075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitDecl(const Decl &D); 508248a753f6b670692523c99afaeb8fe98f7ae3ca7Steve Naroff void EmitBlockVarDecl(const VarDecl &D); 509248a753f6b670692523c99afaeb8fe98f7ae3ca7Steve Naroff void EmitLocalBlockVarDecl(const VarDecl &D); 510248a753f6b670692523c99afaeb8fe98f7ae3ca7Steve Naroff void EmitStaticBlockVarDecl(const VarDecl &D); 511b7ec246872b412f0e7bb9e93eacfd78cfa6adfb3Daniel Dunbar 512b7ec246872b412f0e7bb9e93eacfd78cfa6adfb3Daniel Dunbar /// EmitParmDecl - Emit a ParmVarDecl or an ImplicitParamDecl. 513b7ec246872b412f0e7bb9e93eacfd78cfa6adfb3Daniel Dunbar void EmitParmDecl(const VarDecl &D, llvm::Value *Arg); 5140dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 5155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 5165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Statement Emission 5175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 5185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5190dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitStopPoint - Emit a debug stoppoint if we are emitting debug info. 5200912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar void EmitStopPoint(const Stmt *S); 5210912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar 5220dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitStmt - Emit the code for the statement \arg S. It is legal to call 5230dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// this function even if there is no current insertion point. 5240dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// 5250dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// This function may clear the current insertion point; callers should use 5260dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EnsureInsertPoint if they wish to subsequently generate code without first 5270dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// calling EmitBlock, EmitBranch, or EmitStmt. 5285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitStmt(const Stmt *S); 529a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 5300912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar /// EmitSimpleStmt - Try to emit a "simple" statement which does not 5310dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// necessarily require an insertion point or debug information; typically 5320dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// because the statement amounts to a jump or a container of other 5330dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// statements. 5340912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar /// 5350912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar /// \return True if the statement was handled. 5360912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar bool EmitSimpleStmt(const Stmt *S); 5370912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar 5389b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner RValue EmitCompoundStmt(const CompoundStmt &S, bool GetLast = false, 5399b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner llvm::Value *AggLoc = 0, bool isAggVol = false); 540a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 5410dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitLabel - Emit the block for the given label. It is legal to call this 5420dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// function even if there is no current insertion point. 54391d723da7b68be5245c3ac58aa2a36d04658cfb8Chris Lattner void EmitLabel(const LabelStmt &S); // helper for EmitLabelStmt. 544a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar 5455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitLabelStmt(const LabelStmt &S); 5465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitGotoStmt(const GotoStmt &S); 5470ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar void EmitIndirectGotoStmt(const IndirectGotoStmt &S); 5485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitIfStmt(const IfStmt &S); 5495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitWhileStmt(const WhileStmt &S); 5505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitDoStmt(const DoStmt &S); 5515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitForStmt(const ForStmt &S); 5525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitReturnStmt(const ReturnStmt &S); 5535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitDeclStmt(const DeclStmt &S); 5540912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar void EmitBreakStmt(const BreakStmt &S); 5550912425f79418a215c2fbd2d8fc9511244a4aa46Daniel Dunbar void EmitContinueStmt(const ContinueStmt &S); 55651b09f2c528c8460b5465c676173324e44176d62Devang Patel void EmitSwitchStmt(const SwitchStmt &S); 55751b09f2c528c8460b5465c676173324e44176d62Devang Patel void EmitDefaultStmt(const DefaultStmt &S); 55851b09f2c528c8460b5465c676173324e44176d62Devang Patel void EmitCaseStmt(const CaseStmt &S); 559c049e4f406a7f7179eba98659044a32508e53289Devang Patel void EmitCaseStmtRange(const CaseStmt &S); 560fb1aeb804c08d5288a923fb278161783e6abdc66Anders Carlsson void EmitAsmStmt(const AsmStmt &S); 5610dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 5623d8400d9a61aa4b63ff35e5cede405b32a41425eAnders Carlsson void EmitObjCForCollectionStmt(const ObjCForCollectionStmt &S); 56364d5d6c5903157c521af496479d06dc26032d718Anders Carlsson void EmitObjCAtTryStmt(const ObjCAtTryStmt &S); 56464d5d6c5903157c521af496479d06dc26032d718Anders Carlsson void EmitObjCAtThrowStmt(const ObjCAtThrowStmt &S); 56510cac6f7115b59a466bb8d2d51cdddeb38aadc37Chris Lattner void EmitObjCAtSynchronizedStmt(const ObjCAtSynchronizedStmt &S); 5660dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 5675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 5685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // LValue Expression Emission 5695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 5705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 57113e81737a433b23f8c662d10d1d57356122a8caaDaniel Dunbar /// GetUndefRValue - Get an appropriate 'undef' rvalue for the given type. 57213e81737a433b23f8c662d10d1d57356122a8caaDaniel Dunbar RValue GetUndefRValue(QualType Ty); 57313e81737a433b23f8c662d10d1d57356122a8caaDaniel Dunbar 574ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar /// EmitUnsupportedRValue - Emit a dummy r-value using the type of E 575ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar /// and issue an ErrorUnsupported style diagnostic (using the 576ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar /// provided Name). 577ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar RValue EmitUnsupportedRValue(const Expr *E, 578ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar const char *Name); 579ce1d38b8163650e473d7084e0686ed5a7956057bDaniel Dunbar 5800dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitUnsupportedLValue - Emit a dummy l-value using the type of E and issue 5810dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// an ErrorUnsupported style diagnostic (using the provided Name). 5826ba82a4a4b295e54cf192c3e98b28f39990c6194Daniel Dunbar LValue EmitUnsupportedLValue(const Expr *E, 5836ba82a4a4b295e54cf192c3e98b28f39990c6194Daniel Dunbar const char *Name); 5846ba82a4a4b295e54cf192c3e98b28f39990c6194Daniel Dunbar 5855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EmitLValue - Emit code to compute a designator that specifies the location 5865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// of the expression. 5875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 5885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// This can return one of two things: a simple address or a bitfield 5895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// reference. In either case, the LLVM Value* in the LValue structure is 5905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// guaranteed to be an LLVM pointer type. 5915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 5925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// If this returns a bitfield reference, nothing about the pointee type of 5935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// the LLVM value is known: For example, it may not be a pointer to an 5945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// integer. 5955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 5965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// If this returns a normal address, and if the lvalue's C type is fixed 5975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// size, this method guarantees that the returned pointer type will point to 5985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// an LLVM type of the same size of the lvalue's type. If the lvalue has a 5995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// variable length type, this is not possible. 6005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 6015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitLValue(const Expr *E); 6020dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 6039d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// EmitLoadOfScalar - Load a scalar value from an address, taking 6049d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// care to appropriately convert from the memory representation to 6059d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// the LLVM value representation. 60609429b962811f2c0a7a81a1b0a89f96f5878b20cMike Stump llvm::Value *EmitLoadOfScalar(llvm::Value *Addr, bool Volatile, 6079d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar QualType Ty); 6089d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar 6099d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// EmitStoreOfScalar - Store a scalar value to an address, taking 6109d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// care to appropriately convert from the memory representation to 6119d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar /// the LLVM value representation. 61209429b962811f2c0a7a81a1b0a89f96f5878b20cMike Stump void EmitStoreOfScalar(llvm::Value *Value, llvm::Value *Addr, 6139d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar bool Volatile); 6149d9cc874bcc168474757a8f90476684b4a93ed76Daniel Dunbar 6155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EmitLoadOfLValue - Given an expression that represents a value lvalue, 6165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// this method emits the address of the lvalue, then loads the result as an 6175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// rvalue, returning the rvalue. 6185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer RValue EmitLoadOfLValue(LValue V, QualType LVType); 619213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman RValue EmitLoadOfExtVectorElementLValue(LValue V, QualType LVType); 6203b8c22d93da1432b2d4cea779d14912645c93866Lauro Ramos Venancio RValue EmitLoadOfBitfieldLValue(LValue LV, QualType ExprType); 62185c59edda02df48fae8dc85049743319bc6e7e89Daniel Dunbar RValue EmitLoadOfPropertyRefLValue(LValue LV, QualType ExprType); 62243f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian RValue EmitLoadOfKVCRefLValue(LValue LV, QualType ExprType); 6235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6240dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 6255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EmitStoreThroughLValue - Store the specified rvalue into the specified 6265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// lvalue, where both are guaranteed to the have the same type, and that type 6275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// is 'Ty'. 6285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EmitStoreThroughLValue(RValue Src, LValue Dst, QualType Ty); 629213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman void EmitStoreThroughExtVectorComponentLValue(RValue Src, LValue Dst, 630213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman QualType Ty); 63185c59edda02df48fae8dc85049743319bc6e7e89Daniel Dunbar void EmitStoreThroughPropertyRefLValue(RValue Src, LValue Dst, QualType Ty); 63243f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian void EmitStoreThroughKVCRefLValue(RValue Src, LValue Dst, QualType Ty); 633ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar 6340dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitStoreThroughLValue - Store Src into Dst with same constraints as 6350dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitStoreThroughLValue. 636ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar /// 6370dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// \param Result [out] - If non-null, this will be set to a Value* for the 6380dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// bit-field contents after the store, appropriate for use as the result of 6390dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// an assignment to the bit-field. 640ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar void EmitStoreThroughBitfieldLValue(RValue Src, LValue Dst, QualType Ty, 641ed3849b456d64d124bddc7ac044f3ce590bd9d69Daniel Dunbar llvm::Value **Result=0); 6420dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 64322c940ee588a420cd2e6c8f68be2ac3cc80061ffChristopher Lamb // Note: only availabe for agg return types 64480e62c29fe21cd06c93eba6e72b7e32dca06fcf9Daniel Dunbar LValue EmitBinaryOperatorLValue(const BinaryOperator *E); 6455b5c9ef865607e179413462dcd71bcebb5b7daaeDaniel Dunbar // Note: only available for agg return types 64622c940ee588a420cd2e6c8f68be2ac3cc80061ffChristopher Lamb LValue EmitCallExprLValue(const CallExpr *E); 6475b5c9ef865607e179413462dcd71bcebb5b7daaeDaniel Dunbar // Note: only available for agg return types 6485b5c9ef865607e179413462dcd71bcebb5b7daaeDaniel Dunbar LValue EmitVAArgExprLValue(const VAArgExpr *E); 6495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitDeclRefLValue(const DeclRefExpr *E); 6505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitStringLiteralLValue(const StringLiteral *E); 651eaf2bb89eb2aad3b80673de30febe52df43c10ecChris Lattner LValue EmitObjCEncodeExprLValue(const ObjCEncodeExpr *E); 652662b71ee82339c67f2c3689196e716c6560cf925Daniel Dunbar LValue EmitPredefinedFunctionName(unsigned Type); 653d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner LValue EmitPredefinedLValue(const PredefinedExpr *E); 6545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitUnaryOpLValue(const UnaryOperator *E); 6555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LValue EmitArraySubscriptExpr(const ArraySubscriptExpr *E); 656213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman LValue EmitExtVectorElementExpr(const ExtVectorElementExpr *E); 657b84a06e68ffd71da22e3c75b6e4bbdba37816413Devang Patel LValue EmitMemberExpr(const MemberExpr *E); 65806e863f2902b8ba55b056308875c19f7ba3dab25Eli Friedman LValue EmitCompoundLiteralLValue(const CompoundLiteralExpr *E); 659472778eb4fce241721c563280886e98389bc7219Eli Friedman 66029e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar llvm::Value *EmitIvarOffset(ObjCInterfaceDecl *Interface, 66129e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar const ObjCIvarDecl *Ivar); 662472778eb4fce241721c563280886e98389bc7219Eli Friedman LValue EmitLValueForField(llvm::Value* Base, FieldDecl* Field, 6631e692ace08959399794363e77499b73da5494af9Eli Friedman bool isUnion, unsigned CVRQualifiers); 66445012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian LValue EmitLValueForIvar(QualType ObjectTy, 66545012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian llvm::Value* Base, const ObjCIvarDecl *Ivar, 666fd64bb635dc221baa19f81d5d2a084f7eb269f7fFariborz Jahanian const FieldDecl *Field, 66729e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar unsigned CVRQualifiers); 66829e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar 669fd64bb635dc221baa19f81d5d2a084f7eb269f7fFariborz Jahanian LValue EmitLValueForBitfield(llvm::Value* Base, FieldDecl* Field, 670598d3f61b6ca854e9d3c2f3359e24468502a61aaFariborz Jahanian unsigned CVRQualifiers); 671fd64bb635dc221baa19f81d5d2a084f7eb269f7fFariborz Jahanian 672e3a09e6ad09f8d1387ecaa008aaf85527909da0aArgyrios Kyrtzidis LValue EmitCXXConditionDeclLValue(const CXXConditionDeclExpr *E); 673e3a09e6ad09f8d1387ecaa008aaf85527909da0aArgyrios Kyrtzidis 6740a04d77bde7e3a661c2b41b60630d125d09ed6efDaniel Dunbar LValue EmitObjCMessageExprLValue(const ObjCMessageExpr *E); 675391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner LValue EmitObjCIvarRefLValue(const ObjCIvarRefExpr *E); 67685c59edda02df48fae8dc85049743319bc6e7e89Daniel Dunbar LValue EmitObjCPropertyRefLValue(const ObjCPropertyRefExpr *E); 67743f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian LValue EmitObjCKVCRefLValue(const ObjCKVCRefExpr *E); 678cd9b46e5442a3ef17f83f75177d8545cb5b3e2b9Douglas Gregor LValue EmitObjCSuperExpr(const ObjCSuperExpr *E); 6790a04d77bde7e3a661c2b41b60630d125d09ed6efDaniel Dunbar 6805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 681883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner // Scalar Expression Emission 6825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 6835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6840dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitCall - Generate a call of the given function, expecting the given 6850dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// result type, and using the given argument list which specifies both the 6860dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// LLVM arguments and the types they were derived from. 687c0ef9f59937c3971c48b6fed37cf5bd8985c024bDaniel Dunbar /// 688c0ef9f59937c3971c48b6fed37cf5bd8985c024bDaniel Dunbar /// \param TargetDecl - If given, the decl of the function in a 689c0ef9f59937c3971c48b6fed37cf5bd8985c024bDaniel Dunbar /// direct call; used to set attributes on the call (noreturn, 690c0ef9f59937c3971c48b6fed37cf5bd8985c024bDaniel Dunbar /// etc.). 69188b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar RValue EmitCall(const CGFunctionInfo &FnInfo, 69288b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar llvm::Value *Callee, 693c0ef9f59937c3971c48b6fed37cf5bd8985c024bDaniel Dunbar const CallArgList &Args, 694c0ef9f59937c3971c48b6fed37cf5bd8985c024bDaniel Dunbar const Decl *TargetDecl = 0); 69519cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar 6965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer RValue EmitCallExpr(const CallExpr *E); 6975549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek 6985193b8a3e57c4f696161aeddfe8227c294c0a7feEli Friedman RValue EmitCallExpr(llvm::Value *Callee, QualType FnType, 6995549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek CallExpr::const_arg_iterator ArgBeg, 700c0ef9f59937c3971c48b6fed37cf5bd8985c024bDaniel Dunbar CallExpr::const_arg_iterator ArgEnd, 701c0ef9f59937c3971c48b6fed37cf5bd8985c024bDaniel Dunbar const Decl *TargetDecl = 0); 7020dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 703ef2abfee3ea16ec74942dc09e9e425f46aeb2582Daniel Dunbar RValue EmitBuiltinExpr(const FunctionDecl *FD, 704ef2abfee3ea16ec74942dc09e9e425f46aeb2582Daniel Dunbar unsigned BuiltinID, const CallExpr *E); 7055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 706acfde805d644bc71dfeac54ddbc9f12cdae0bb02Anders Carlsson RValue EmitBlockCallExpr(const CallExpr *E); 70709429b962811f2c0a7a81a1b0a89f96f5878b20cMike Stump 7080dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitTargetBuiltinExpr - Emit the given builtin call. Returns 0 if the call 7090dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// is unhandled by the current target. 710f02e9ddf5efc75917af712b3c7f909581205f0a5Daniel Dunbar llvm::Value *EmitTargetBuiltinExpr(unsigned BuiltinID, const CallExpr *E); 711f02e9ddf5efc75917af712b3c7f909581205f0a5Daniel Dunbar 712564f1de67d7ba43646b8740db86d6269e3dfbe0bAnders Carlsson llvm::Value *EmitX86BuiltinExpr(unsigned BuiltinID, const CallExpr *E); 713564f1de67d7ba43646b8740db86d6269e3dfbe0bAnders Carlsson llvm::Value *EmitPPCBuiltinExpr(unsigned BuiltinID, const CallExpr *E); 7140dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 715cc23acae84c6d5c37b4805edbcd95ee5d821c400Anders Carlsson llvm::Value *EmitShuffleVector(llvm::Value* V1, llvm::Value *V2, ...); 7164119d1aeca8016654d381ce079864058d1709571Nate Begeman llvm::Value *EmitVector(llvm::Value * const *Vals, unsigned NumVals, 7174119d1aeca8016654d381ce079864058d1709571Nate Begeman bool isSplat = false); 7180dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 719ed7c618f849e2541b1d0288c43154937652c5b15Daniel Dunbar llvm::Value *EmitObjCProtocolExpr(const ObjCProtocolExpr *E); 7207f02f721d48772e4eee4fccd8af4f800be1bbc1eChris Lattner llvm::Value *EmitObjCStringLiteral(const ObjCStringLiteral *E); 7218fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner llvm::Value *EmitObjCSelectorExpr(const ObjCSelectorExpr *E); 7228f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar RValue EmitObjCMessageExpr(const ObjCMessageExpr *E); 7235daf570d0ce027e18ed5f9d66e6b2a14a40b720dFariborz Jahanian RValue EmitObjCPropertyGet(const Expr *E); 72443f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian void EmitObjCPropertySet(const Expr *E, RValue Src); 7258fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner 7268fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner 727883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner //===--------------------------------------------------------------------===// 728bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattner // Expression Emission 729883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner //===--------------------------------------------------------------------===// 730bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattner 731bfc0c1ae4b505b52b36f572a9641f99e76879cabChris Lattner // Expressions are broken into three classes: scalar, complex, aggregate. 7320dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 7330dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// EmitScalarExpr - Emit the computation of the specified expression of LLVM 7340dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// scalar type, returning the result. 7357f02f721d48772e4eee4fccd8af4f800be1bbc1eChris Lattner llvm::Value *EmitScalarExpr(const Expr *E); 7360dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 7373707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner /// EmitScalarConversion - Emit a conversion from the specified type to the 7383707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner /// specified destination type, both of which are LLVM scalar types. 7393707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner llvm::Value *EmitScalarConversion(llvm::Value *Src, QualType SrcTy, 7403707b255f8993fb362904c9cff87b0e9bc6ca317Chris Lattner QualType DstTy); 7410dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 7424f1a7b380809b4ca19ad2daff61bc11cd1e979d8Chris Lattner /// EmitComplexToScalarConversion - Emit a conversion from the specified 7430dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// complex type to the specified destination type, where the destination type 7440dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// is an LLVM scalar type. 7454f1a7b380809b4ca19ad2daff61bc11cd1e979d8Chris Lattner llvm::Value *EmitComplexToScalarConversion(ComplexPairTy Src, QualType SrcTy, 7464f1a7b380809b4ca19ad2daff61bc11cd1e979d8Chris Lattner QualType DstTy); 7470dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 7480dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 749883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner /// EmitAggExpr - Emit the computation of the specified expression of 750883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner /// aggregate type. The result is computed into DestPtr. Note that if 751883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner /// DestPtr is null, the value of the aggregate expression is not needed. 752883f6a7cc7dccb1d675e27121a82614d63492a8dChris Lattner void EmitAggExpr(const Expr *E, llvm::Value *DestPtr, bool VolatileDest); 7530dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 754b6ef18a2b06d6760459e1756a61f79ff496cee19Chris Lattner /// EmitComplexExpr - Emit the computation of the specified expression of 75523b1cdb0b5e089468bb8475b8ec9287af67b4b59Chris Lattner /// complex type, returning the result. 75658dee10ed2eee34035f62d1c2d32b3639e9182f8Chris Lattner ComplexPairTy EmitComplexExpr(const Expr *E); 7570dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 75823b1cdb0b5e089468bb8475b8ec9287af67b4b59Chris Lattner /// EmitComplexExprIntoAddr - Emit the computation of the specified expression 75923b1cdb0b5e089468bb8475b8ec9287af67b4b59Chris Lattner /// of complex type, storing into the specified Value*. 760190dbe203c2e892ac40f1786035c6c9be3f44a4cChris Lattner void EmitComplexExprIntoAddr(const Expr *E, llvm::Value *DestAddr, 761190dbe203c2e892ac40f1786035c6c9be3f44a4cChris Lattner bool DestIsVolatile); 7627f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar 7637f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar /// StoreComplexToAddr - Store a complex number into the specified address. 7647f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar void StoreComplexToAddr(ComplexPairTy V, llvm::Value *DestAddr, 7657f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar bool DestIsVolatile); 7669b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner /// LoadComplexFromAddr - Load a complex number from the specified address. 7679b65551d0b387a7597fb39356a4d8ef10046445eChris Lattner ComplexPairTy LoadComplexFromAddr(llvm::Value *SrcAddr, bool SrcIsVolatile); 7682621fd1d6d3c5eadcae246859f62738645df7540Chris Lattner 7690096acf421c4609ce7f43e8b05f8c5ca866d4611Daniel Dunbar /// CreateStaticBlockVarDecl - Create a zero-initialized LLVM global 7700096acf421c4609ce7f43e8b05f8c5ca866d4611Daniel Dunbar /// for a static block var decl. 7710096acf421c4609ce7f43e8b05f8c5ca866d4611Daniel Dunbar llvm::GlobalVariable * CreateStaticBlockVarDecl(const VarDecl &D, 7720096acf421c4609ce7f43e8b05f8c5ca866d4611Daniel Dunbar const char *Separator, 7730096acf421c4609ce7f43e8b05f8c5ca866d4611Daniel Dunbar llvm::GlobalValue::LinkageTypes 7740096acf421c4609ce7f43e8b05f8c5ca866d4611Daniel Dunbar Linkage); 7750096acf421c4609ce7f43e8b05f8c5ca866d4611Daniel Dunbar 7760096acf421c4609ce7f43e8b05f8c5ca866d4611Daniel Dunbar /// GenerateStaticCXXBlockVarDecl - Create the initializer for a C++ 7770096acf421c4609ce7f43e8b05f8c5ca866d4611Daniel Dunbar /// runtime initialized static block var decl. 7780096acf421c4609ce7f43e8b05f8c5ca866d4611Daniel Dunbar void GenerateStaticCXXBlockVarDeclInit(const VarDecl &D, 7790096acf421c4609ce7f43e8b05f8c5ca866d4611Daniel Dunbar llvm::GlobalVariable *GV); 780e1b29efab32d02e114046d33cca242a88585bf8aAnders Carlsson 7810ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar //===--------------------------------------------------------------------===// 7820ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar // Internal Helpers 7830ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar //===--------------------------------------------------------------------===// 7840dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 7850946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner /// ContainsLabel - Return true if the statement contains a label in it. If 7860946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner /// this statement is not executed normally, it not containing a label means 7870946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner /// that we can just remove the code. 7880946ccd1e58c1f1da31ddbca67c5b6301ac8b255Chris Lattner static bool ContainsLabel(const Stmt *S, bool IgnoreCaseStmts = false); 7890dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 7904bc0455d826e9634b7a68c0d06146edd633c9453Daniel Dunbar /// ConstantFoldsToSimpleInteger - If the specified expression does not fold 79131a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// to a constant, or if it does but contains a label, return 0. If it 79231a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// constant folds to 'true' and does not contain a label, return 1, if it 79331a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// constant folds to 'false' and does not contain a label, return -1. 79431a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner int ConstantFoldsToSimpleInteger(const Expr *Cond); 7950dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 79631a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// EmitBranchOnBoolExpr - Emit a branch on a boolean condition (e.g. for an 79731a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// if statement) to the specified blocks. Based on the condition, this might 79831a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattner /// try to simplify the codegen of the conditional based on the branch. 7999bc47e29dce8f095be7a6d07dbb02a5a7a112949Chris Lattner void EmitBranchOnBoolExpr(const Expr *Cond, llvm::BasicBlock *TrueBlock, 8004bc0455d826e9634b7a68c0d06146edd633c9453Daniel Dunbar llvm::BasicBlock *FalseBlock); 80131a0984b5cb4af99d2407c0f25bf5af68df681c6Chris Lattnerprivate: 8020dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 8030ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar /// EmitIndirectSwitches - Emit code for all of the switch 8040ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar /// instructions in IndirectSwitches. 8050ffb125996336fc7602b162c0a9e392f1a93060fDaniel Dunbar void EmitIndirectSwitches(); 8065627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar 80729e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar void EmitReturnOfRValue(RValue RV, QualType Ty); 80829e0bccf2bcce22b877f8b2ed173f564c116b97eDaniel Dunbar 8095627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// ExpandTypeFromArgs - Reconstruct a structure of type \arg Ty 8105627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// from function arguments into \arg Dst. See ABIArgInfo::Expand. 8115627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// 8125627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// \param AI - The first function argument of the expansion. 8135627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// \return The argument following the last expanded function 8145627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar /// argument. 8150dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump llvm::Function::arg_iterator 8165627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar ExpandTypeFromArgs(QualType Ty, LValue Dst, 8175627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar llvm::Function::arg_iterator AI); 8185627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar 8190dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// ExpandTypeToArgs - Expand an RValue \arg Src, with the LLVM type for \arg 8200dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// Ty, into individual arguments on the provided vector \arg Args. See 8210dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump /// ABIArgInfo::Expand. 8220dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump void ExpandTypeToArgs(QualType Ty, RValue Src, 8235627377df5439a1d3d46a4e4cef4ae44f84a322bDaniel Dunbar llvm::SmallVector<llvm::Value*, 16> &Args); 824c8c7b187adcd989e01a9fba1ebead6c2abd770c9Anders Carlsson 825c8c7b187adcd989e01a9fba1ebead6c2abd770c9Anders Carlsson llvm::Value* EmitAsmInput(const AsmStmt &S, TargetInfo::ConstraintInfo Info, 826c8c7b187adcd989e01a9fba1ebead6c2abd770c9Anders Carlsson const Expr *InputExpr, std::string &ConstraintStr); 8270dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 828c71c845fe77ee1f891d60232ec320912d88557eeAnders Carlsson /// EmitCleanupBlock - emits a single cleanup block. 829c71c845fe77ee1f891d60232ec320912d88557eeAnders Carlsson void EmitCleanupBlock(); 830c71c845fe77ee1f891d60232ec320912d88557eeAnders Carlsson 83187eaf17cc88516277e4389dfa15df93ecfdce559Anders Carlsson /// AddBranchFixup - adds a branch instruction to the list of fixups for the 83287eaf17cc88516277e4389dfa15df93ecfdce559Anders Carlsson /// current cleanup scope. 83387eaf17cc88516277e4389dfa15df93ecfdce559Anders Carlsson void AddBranchFixup(llvm::BranchInst *BI); 8340dd9e88aa972d80025c66fb3d7df0266b44cad1aMike Stump 8355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 8365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace CodeGen 8375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace clang 8385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#endif 840