clang
6.0.0
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#include "/work/www-prereleases/6.0.0/rc2/docsbuild/llvm.src/tools/clang/lib/CodeGen/ConstantEmitter.h"
Public Member Functions | |
ConstantEmitter (CodeGenModule &CGM, CodeGenFunction *CGF=nullptr) | |
ConstantEmitter (CodeGenFunction &CGF) | |
Initialize this emission in the context of the given function. More... | |
ConstantEmitter (const ConstantEmitter &other)=delete | |
ConstantEmitter & | operator= (const ConstantEmitter &other)=delete |
~ConstantEmitter () | |
bool | isAbstract () const |
Is the current emission context abstract? More... | |
llvm::Constant * | tryEmitForInitializer (const VarDecl &D) |
Try to emit the initiaizer of the given declaration as an abstract constant. More... | |
llvm::Constant * | tryEmitForInitializer (const Expr *E, LangAS destAddrSpace, QualType destType) |
llvm::Constant * | emitForInitializer (const APValue &value, LangAS destAddrSpace, QualType destType) |
void | finalize (llvm::GlobalVariable *global) |
llvm::Constant * | tryEmitAbstractForInitializer (const VarDecl &D) |
Try to emit the initializer of the given declaration as an abstract constant. More... | |
llvm::Constant * | emitAbstract (const Expr *E, QualType T) |
Emit the result of the given expression as an abstract constant, asserting that it succeeded. More... | |
llvm::Constant * | emitAbstract (SourceLocation loc, const APValue &value, QualType T) |
llvm::Constant * | tryEmitAbstract (const Expr *E, QualType T) |
Try to emit the result of the given expression as an abstract constant. More... | |
llvm::Constant * | tryEmitAbstractForMemory (const Expr *E, QualType T) |
llvm::Constant * | tryEmitAbstract (const APValue &value, QualType T) |
llvm::Constant * | tryEmitAbstractForMemory (const APValue &value, QualType T) |
llvm::Constant * | emitNullForMemory (QualType T) |
llvm::Constant * | emitForMemory (llvm::Constant *C, QualType T) |
llvm::Constant * | tryEmitPrivateForVarInit (const VarDecl &D) |
llvm::Constant * | tryEmitPrivate (const Expr *E, QualType T) |
llvm::Constant * | tryEmitPrivateForMemory (const Expr *E, QualType T) |
llvm::Constant * | tryEmitPrivate (const APValue &value, QualType T) |
llvm::Constant * | tryEmitPrivateForMemory (const APValue &value, QualType T) |
llvm::GlobalValue * | getCurrentAddrPrivate () |
Get the address of the current location. More... | |
void | registerCurrentAddrPrivate (llvm::Constant *signal, llvm::GlobalValue *placeholder) |
Register a 'signal' value with the emitter to inform it where to resolve a placeholder. More... | |
Static Public Member Functions | |
static llvm::Constant * | emitNullForMemory (CodeGenModule &CGM, QualType T) |
static llvm::Constant * | emitForMemory (CodeGenModule &CGM, llvm::Constant *C, QualType T) |
Public Attributes | |
CodeGenModule & | CGM |
CodeGenFunction * | CGF |
Definition at line 24 of file ConstantEmitter.h.
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Definition at line 49 of file ConstantEmitter.h.
Referenced by ConstantEmitter().
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Initialize this emission in the context of the given function.
Use this if the expression might contain contextaul references like block addresses or PredefinedExprs.
Definition at line 55 of file ConstantEmitter.h.
References ConstantEmitter(), operator=(), and ~ConstantEmitter().
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delete |
ConstantEmitter::~ConstantEmitter | ( | ) |
Definition at line 1373 of file CGExprConstant.cpp.
Referenced by ConstantEmitter().
Emit the result of the given expression as an abstract constant, asserting that it succeeded.
This is only safe to do when the expression is known to be a constant expression with either a fairly simple type or a known simple form.
Definition at line 1155 of file CGExprConstant.cpp.
References clang::CodeGen::CodeGenModule::EmitNullConstant(), clang::CodeGen::CodeGenModule::Error(), clang::Expr::getExprLoc(), and clang::CodeGen::state.
Referenced by clang::CodeGen::CodeGenFunction::tryEmitAsConstant().
llvm::Constant * ConstantEmitter::emitAbstract | ( | SourceLocation | loc, |
const APValue & | value, | ||
QualType | T | ||
) |
Definition at line 1168 of file CGExprConstant.cpp.
References clang::CodeGen::CodeGenModule::EmitNullConstant(), clang::CodeGen::CodeGenModule::Error(), and clang::CodeGen::state.
llvm::Constant * ConstantEmitter::emitForInitializer | ( | const APValue & | value, |
LangAS | destAddrSpace, | ||
QualType | destType | ||
) |
Definition at line 1193 of file CGExprConstant.cpp.
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inline |
Definition at line 114 of file ConstantEmitter.h.
References emitNullForMemory(), getCurrentAddrPrivate(), registerCurrentAddrPrivate(), tryEmitPrivate(), tryEmitPrivateForMemory(), and tryEmitPrivateForVarInit().
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Definition at line 1457 of file CGExprConstant.cpp.
References clang::CodeGen::CodeGenTypes::ConvertTypeForMem(), clang::Type::getAs(), clang::CodeGen::CodeGenModule::getContext(), clang::CodeGen::CodeGenModule::getTypes(), clang::ASTContext::getTypeSize(), clang::CodeGen::CodeGenTypeCache::Int8Ty, and clang::CodeGen::Type.
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Definition at line 111 of file ConstantEmitter.h.
Referenced by emitForMemory(), and clang::CodeGen::CodeGenModule::EmitNullConstant().
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Definition at line 2085 of file CGExprConstant.cpp.
References clang::CodeGen::CodeGenModule::EmitNullConstant(), and clang::T.
void ConstantEmitter::finalize | ( | llvm::GlobalVariable * | global | ) |
Definition at line 1357 of file CGExprConstant.cpp.
Referenced by clang::CodeGen::CodeGenFunction::AddInitializerToStaticVarDecl(), and clang::CodeGen::CodeGenModule::isTypeConstant().
llvm::GlobalValue * ConstantEmitter::getCurrentAddrPrivate | ( | ) |
Get the address of the current location.
This is a constant that will resolve, after finalization, to the address of the 'signal' value that is registered with the emitter later.
Definition at line 1202 of file CGExprConstant.cpp.
References clang::CodeGen::CodeGenModule::getContext(), clang::CodeGen::CodeGenModule::getModule(), clang::ASTContext::getTargetAddressSpace(), and clang::CodeGen::CodeGenTypeCache::Int8Ty.
Referenced by emitForMemory().
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inline |
Is the current emission context abstract?
Definition at line 64 of file ConstantEmitter.h.
References tryEmitForInitializer().
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delete |
Referenced by ConstantEmitter().
void ConstantEmitter::registerCurrentAddrPrivate | ( | llvm::Constant * | signal, |
llvm::GlobalValue * | placeholder | ||
) |
Register a 'signal' value with the emitter to inform it where to resolve a placeholder.
The signal value must be unique in the initializer; it might, for example, be the address of a global that refers to the current-address value in its own initializer.
Uses of the placeholder must be properly anchored before finalizing the emitter, e.g. by being installed as the initializer of a global variable. That is, it must be possible to replaceAllUsesWith the placeholder with the proper address of the signal.
Definition at line 1222 of file CGExprConstant.cpp.
References clang::CodeGen::Base, clang::ast_matchers::expr, clang::CodeGen::CodeGenTypeCache::Int32Ty, and clang::CodeGen::Type.
Referenced by emitForMemory().
Try to emit the result of the given expression as an abstract constant.
Definition at line 1141 of file CGExprConstant.cpp.
References clang::CodeGen::state.
Referenced by createReferenceTemporary(), and EmitCXXNewAllocSize().
Definition at line 1148 of file CGExprConstant.cpp.
References clang::CodeGen::state.
llvm::Constant * ConstantEmitter::tryEmitAbstractForInitializer | ( | const VarDecl & | D | ) |
Try to emit the initializer of the given declaration as an abstract constant.
Definition at line 1134 of file CGExprConstant.cpp.
References clang::CodeGen::state.
Referenced by clang::CodeGen::CodeGenFunction::EmitAutoVarInit(), and tryCaptureAsConstant().
Definition at line 1429 of file CGExprConstant.cpp.
References getNonMemoryType().
Definition at line 1436 of file CGExprConstant.cpp.
References getNonMemoryType().
llvm::Constant * ConstantEmitter::tryEmitForInitializer | ( | const VarDecl & | D | ) |
Try to emit the initiaizer of the given declaration as an abstract constant.
If this succeeds, the emission must be finalized.
Definition at line 1181 of file CGExprConstant.cpp.
References clang::QualType::getAddressSpace(), and clang::ValueDecl::getType().
Referenced by clang::CodeGen::CodeGenFunction::AddInitializerToStaticVarDecl(), isAbstract(), and clang::CodeGen::CodeGenModule::isTypeConstant().
llvm::Constant * ConstantEmitter::tryEmitForInitializer | ( | const Expr * | E, |
LangAS | destAddrSpace, | ||
QualType | destType | ||
) |
Definition at line 1186 of file CGExprConstant.cpp.
Definition at line 1488 of file CGExprConstant.cpp.
References clang::Expr::EvaluateAsLValue(), clang::Expr::EvaluateAsRValue(), clang::CodeGen::CodeGenModule::getContext(), clang::Expr::EvalStatus::HasSideEffects, clang::Type::isReferenceType(), and clang::Expr::EvalResult::Val.
Referenced by emitForMemory().
Definition at line 1802 of file CGExprConstant.cpp.
References clang::APValue::ComplexFloat, clang::APValue::ComplexInt, clang::APValue::Float, clang::APValue::getComplexFloatImag(), clang::APValue::getComplexFloatReal(), clang::APValue::getComplexIntImag(), clang::APValue::getComplexIntReal(), clang::CodeGen::CodeGenModule::getContext(), clang::APValue::getFloat(), clang::APValue::getInt(), clang::APValue::getKind(), clang::ASTContext::getLangOpts(), clang::CodeGen::CodeGenModule::getLLVMContext(), clang::ASTContext::getTargetInfo(), clang::APValue::getVectorLength(), Inits, clang::APValue::Int, clang::APValue::LValue, clang::APValue::Uninitialized, clang::TargetInfo::useFP16ConversionIntrinsics(), and clang::APValue::Vector.
Definition at line 1443 of file CGExprConstant.cpp.
References getNonMemoryType().
Referenced by emitForMemory().
Definition at line 1450 of file CGExprConstant.cpp.
References getNonMemoryType().
llvm::Constant * ConstantEmitter::tryEmitPrivateForVarInit | ( | const VarDecl & | D | ) |
Definition at line 1387 of file CGExprConstant.cpp.
References clang::CodeGen::CodeGenModule::EmitNullConstant(), clang::VarDecl::evaluateValue(), clang::ASTContext::getBaseElementType(), clang::CodeGen::CodeGenModule::getContext(), clang::VarDecl::getInit(), getNonMemoryType(), clang::ValueDecl::getType(), clang::VarDecl::hasLocalStorage(), clang::CXXConstructorDecl::isDefaultConstructor(), clang::Type::isRecordType(), clang::Type::isReferenceType(), and clang::FunctionDecl::isTrivial().
Referenced by emitForMemory().
CodeGenFunction* clang::CodeGen::ConstantEmitter::CGF |
Definition at line 27 of file ConstantEmitter.h.
CodeGenModule& clang::CodeGen::ConstantEmitter::CGM |
Definition at line 26 of file ConstantEmitter.h.
Referenced by clang::CodeGen::CodeGenModule::getNullPointer().