clang
6.0.0
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#include "CGBlocks.h"
#include "CGCXXABI.h"
#include "CGCleanup.h"
#include "CGDebugInfo.h"
#include "CGOpenCLRuntime.h"
#include "CGOpenMPRuntime.h"
#include "CodeGenFunction.h"
#include "CodeGenModule.h"
#include "ConstantEmitter.h"
#include "TargetInfo.h"
#include "clang/AST/ASTContext.h"
#include "clang/AST/CharUnits.h"
#include "clang/AST/Decl.h"
#include "clang/AST/DeclObjC.h"
#include "clang/AST/DeclOpenMP.h"
#include "clang/Basic/SourceManager.h"
#include "clang/Basic/TargetInfo.h"
#include "clang/CodeGen/CGFunctionInfo.h"
#include "clang/Frontend/CodeGenOptions.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/IR/GlobalVariable.h"
#include "llvm/IR/Intrinsics.h"
#include "llvm/IR/Type.h"
Go to the source code of this file.
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static std::string | getStaticDeclName (CodeGenModule &CGM, const VarDecl &D) |
static bool | hasNontrivialDestruction (QualType T) |
hasNontrivialDestruction - Determine whether a type's destruction is non-trivial. More... | |
static void | EmitAutoVarWithLifetime (CodeGenFunction &CGF, const VarDecl &var, Address addr, Qualifiers::ObjCLifetime lifetime) |
EmitAutoVarWithLifetime - Does the setup required for an automatic variable with lifetime. More... | |
static bool | isAccessedBy (const VarDecl &var, const Stmt *s) |
static bool | isAccessedBy (const ValueDecl *decl, const Expr *e) |
static bool | tryEmitARCCopyWeakInit (CodeGenFunction &CGF, const LValue &destLV, const Expr *init) |
static void | drillIntoBlockVariable (CodeGenFunction &CGF, LValue &lvalue, const VarDecl *var) |
static bool | canEmitInitWithFewStoresAfterMemset (llvm::Constant *Init, unsigned &NumStores) |
canEmitInitWithFewStoresAfterMemset - Decide whether we can emit the non-zero parts of the specified initializer with equal or fewer than NumStores scalar stores. More... | |
static void | emitStoresForInitAfterMemset (llvm::Constant *Init, llvm::Value *Loc, bool isVolatile, CGBuilderTy &Builder) |
emitStoresForInitAfterMemset - For inits that canEmitInitWithFewStoresAfterMemset returned true for, emit the scalar stores that would be required. More... | |
static bool | shouldUseMemSetPlusStoresToInitialize (llvm::Constant *Init, uint64_t GlobalSize) |
shouldUseMemSetPlusStoresToInitialize - Decide whether we should use memset plus some stores to initialize a local variable instead of using a memcpy from a constant global. More... | |
static bool | isCapturedBy (const VarDecl &var, const Expr *e) |
Determines whether the given __block variable is potentially captured by the given expression. More... | |
static void | emitPartialArrayDestroy (CodeGenFunction &CGF, llvm::Value *begin, llvm::Value *end, QualType type, CharUnits elementAlign, CodeGenFunction::Destroyer *destroyer) |
Perform partial array destruction as if in an EH cleanup. More... | |
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canEmitInitWithFewStoresAfterMemset - Decide whether we can emit the non-zero parts of the specified initializer with equal or fewer than NumStores scalar stores.
Definition at line 827 of file CGDecl.cpp.
Referenced by shouldUseMemSetPlusStoresToInitialize().
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Definition at line 686 of file CGDecl.cpp.
References clang::CodeGen::CodeGenFunction::emitBlockByrefAddress(), clang::CodeGen::LValue::getAddress(), and clang::CodeGen::LValue::setAddress().
Referenced by clang::CodeGen::CodeGenFunction::EmitExprAsInit(), and clang::CodeGen::CodeGenFunction::EmitScalarInit().
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EmitAutoVarWithLifetime - Does the setup required for an automatic variable with lifetime.
Definition at line 568 of file CGDecl.cpp.
References clang::CodeGen::CodeGenFunction::destroyARCStrongImprecise, clang::CodeGen::CodeGenFunction::destroyARCStrongPrecise, clang::CodeGen::CodeGenFunction::destroyARCWeak, clang::CodeGen::EHCleanup, clang::CodeGen::CodeGenFunction::getARCCleanupKind(), clang::ValueDecl::getType(), clang::Decl::hasAttr(), clang::CodeGen::NormalAndEHCleanup, clang::Qualifiers::OCL_Autoreleasing, clang::Qualifiers::OCL_ExplicitNone, clang::Qualifiers::OCL_None, clang::Qualifiers::OCL_Strong, clang::Qualifiers::OCL_Weak, and clang::CodeGen::CodeGenFunction::pushDestroy().
Referenced by clang::CodeGen::CodeGenFunction::EmitParmDecl().
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Perform partial array destruction as if in an EH cleanup.
Unlike emitArrayDestroy, the element type here may still be an array type.
Definition at line 1629 of file CGDecl.cpp.
References clang::ast_matchers::arrayType, clang::CodeGen::CodeGenFunction::Builder, clang::CodeGen::CGBuilderTy::CreateLoad(), clang::CodeGen::CodeGenFunction::emitArrayDestroy(), clang::ASTContext::getAsArrayType(), clang::CodeGen::CodeGenFunction::getContext(), and clang::CodeGen::CodeGenTypeCache::SizeTy.
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emitStoresForInitAfterMemset - For inits that canEmitInitWithFewStoresAfterMemset returned true for, emit the scalar stores that would be required.
Definition at line 866 of file CGDecl.cpp.
References clang::CodeGen::CGBuilderTy::CreateDefaultAlignedStore().
Referenced by clang::CodeGen::CodeGenFunction::EmitAutoVarInit().
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Definition at line 186 of file CGDecl.cpp.
References clang::CodeGen::CodeGenModule::getBlockMangledName(), clang::Decl::getDeclContext(), clang::CodeGen::CodeGenModule::getLangOpts(), clang::CodeGen::CodeGenModule::getMangledName(), clang::NamedDecl::getNameAsString(), and clang::NamedDecl::isExternallyVisible().
hasNontrivialDestruction - Determine whether a type's destruction is non-trivial.
If so, and the variable uses static initialization, we must register its destructor to run on exit.
Definition at line 303 of file CGDecl.cpp.
References clang::Type::getAsCXXRecordDecl(), clang::Type::getBaseElementTypeUnsafe(), and clang::CXXRecordDecl::hasTrivialDestructor().
Referenced by clang::CodeGen::CodeGenFunction::AddInitializerToStaticVarDecl().
Definition at line 604 of file CGDecl.cpp.
Referenced by clang::CodeGen::CodeGenFunction::EmitScalarInit(), and isAccessedBy().
Definition at line 629 of file CGDecl.cpp.
References clang::ast_matchers::decl, and isAccessedBy().
Determines whether the given __block variable is potentially captured by the given expression.
Definition at line 1148 of file CGDecl.cpp.
References clang::Expr::IgnoreParenCasts().
Referenced by clang::CodeGen::CodeGenFunction::EmitAutoVarInit().
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shouldUseMemSetPlusStoresToInitialize - Decide whether we should use memset plus some stores to initialize a local variable instead of using a memcpy from a constant global.
It is beneficial to use memset if the global is all zeros, or mostly zeros and large.
Definition at line 910 of file CGDecl.cpp.
References canEmitInitWithFewStoresAfterMemset().
Referenced by clang::CodeGen::CodeGenFunction::EmitAutoVarInit().
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Definition at line 636 of file CGDecl.cpp.
References clang::CodeGen::CodeGenFunction::Builder, clang::ast_matchers::castExpr, clang::CodeGen::CGBuilderTy::CreateElementBitCast(), clang::CodeGen::CodeGenFunction::EmitARCCopyWeak(), clang::CodeGen::CodeGenFunction::EmitARCMoveWeak(), clang::CodeGen::CodeGenFunction::EmitLValue(), clang::CodeGen::LValue::getAddress(), clang::CodeGen::Address::getElementType(), clang::QualType::getObjCLifetime(), clang::Expr::getType(), clang::Expr::getValueKind(), clang::Expr::IgnoreParens(), clang::Qualifiers::OCL_Weak, clang::VK_LValue, and clang::VK_XValue.
Referenced by clang::CodeGen::CodeGenFunction::EmitScalarInit().