clang::interp::EvalEmitter Class Reference

An emitter which evaluates opcodes as they are emitted. More...

#include "/home/buildbot/as-worker-4/publish-doxygen-docs/llvm-project/clang/lib/AST/Interp/EvalEmitter.h"

Inheritance diagram for clang::interp::EvalEmitter:

Collaboration diagram for clang::interp::EvalEmitter:

Public Types
using	LabelTy = uint32_t
using	AddrTy = uintptr_t
using	Local = Scope::Local

Public Member Functions
llvm::Expected< bool >	interpretExpr (const Expr *E)
llvm::Expected< bool >	interpretDecl (const VarDecl *VD)
Public Member Functions inherited from clang::interp::SourceMapper
virtual	~SourceMapper ()
virtual SourceInfo	getSource (const Function *F, CodePtr PC) const =0
	Returns source information for a given PC in a function.
const Expr *	getExpr (const Function *F, CodePtr PC) const
	Returns the expression if an opcode belongs to one, null otherwise.
SourceLocation	getLocation (const Function *F, CodePtr PC) const
	Returns the location from which an opcode originates.

Protected Member Functions
	EvalEmitter (Context &Ctx, Program &P, State &Parent, InterpStack &Stk, APValue &Result)
virtual	~EvalEmitter ()
void	emitLabel (LabelTy Label)
	Define a label.
LabelTy	getLabel ()
	Create a label.
virtual bool	visitExpr (const Expr *E)=0
	Methods implemented by the compiler.
virtual bool	visitDecl (const VarDecl *VD)=0
bool	bail (const Stmt *S)
bool	bail (const Decl *D)
bool	bail (const SourceLocation &Loc)
bool	jumpTrue (const LabelTy &Label)
	Emits jumps.
bool	jumpFalse (const LabelTy &Label)
bool	jump (const LabelTy &Label)
bool	fallthrough (const LabelTy &Label)
Local	createLocal (Descriptor *D)
	Callback for registering a local.
SourceInfo	getSource (const Function *F, CodePtr PC) const override
	Returns the source location of the current opcode.

Protected Attributes
llvm::DenseMap< const ParmVarDecl *, unsigned >	Params
	Parameter indices.
llvm::SmallVector< SmallVector< Local, 8 >, 2 >	Descriptors
	Local descriptors.

Detailed Description

An emitter which evaluates opcodes as they are emitted.

Definition at line 35 of file EvalEmitter.h.

Member Typedef Documentation

AddrTy

using clang::interp::EvalEmitter::AddrTy = uintptr_t

Definition at line 38 of file EvalEmitter.h.

LabelTy

using clang::interp::EvalEmitter::LabelTy = uint32_t

Definition at line 37 of file EvalEmitter.h.

Local

using clang::interp::EvalEmitter::Local = Scope::Local

Definition at line 39 of file EvalEmitter.h.

Constructor & Destructor Documentation

EvalEmitter()

EvalEmitter::EvalEmitter ( Context &  Ctx, Program &  P, State &  Parent, InterpStack &  Stk, APValue &  Result  )

protected

Definition at line 22 of file EvalEmitter.cpp.

References clang::interp::InterpState::Current.

~EvalEmitter()

virtual clang::interp::EvalEmitter::~EvalEmitter ( )

inlineprotectedvirtual

Definition at line 48 of file EvalEmitter.h.

Member Function Documentation

bail() [1/3]

bool clang::interp::EvalEmitter::bail ( const Decl *  D )

inlineprotected

Definition at line 60 of file EvalEmitter.h.

References bail(), and clang::Decl::getBeginLoc().

Referenced by bail().

bail() [2/3]

bool EvalEmitter::bail ( const SourceLocation &  Loc )

protected

Definition at line 74 of file EvalEmitter.cpp.

bail() [3/3]

bool clang::interp::EvalEmitter::bail ( const Stmt *  S )

inlineprotected

Definition at line 59 of file EvalEmitter.h.

References bail().

Referenced by bail().

createLocal()

Scope::Local EvalEmitter::createLocal ( Descriptor *  D )

protected

Callback for registering a local.

Definition at line 52 of file EvalEmitter.cpp.

References clang::interp::InlineDescriptor::Desc, clang::interp::Descriptor::getAllocSize(), clang::interp::Block::invokeCtor(), clang::interp::InlineDescriptor::IsActive, clang::interp::InlineDescriptor::IsBase, clang::interp::InlineDescriptor::IsConst, clang::interp::InlineDescriptor::IsFieldMutable, clang::interp::InlineDescriptor::IsInitialized, and clang::interp::InlineDescriptor::Offset.

emitLabel()

void EvalEmitter::emitLabel ( LabelTy  Label )

protected

Define a label.

Definition at line 46 of file EvalEmitter.cpp.

References Label.

fallthrough()

bool EvalEmitter::fallthrough ( const LabelTy &  Label )

protected

Definition at line 102 of file EvalEmitter.cpp.

References Label.

getLabel()

EvalEmitter::LabelTy EvalEmitter::getLabel ( )

protected

Create a label.

Definition at line 50 of file EvalEmitter.cpp.

getSource()

SourceInfo clang::interp::EvalEmitter::getSource ( const Function *  F, CodePtr  PC  ) const

inlineoverrideprotectedvirtual

Returns the source location of the current opcode.

Implements clang::interp::SourceMapper.

Definition at line 73 of file EvalEmitter.h.

References clang::interp::Function::getSource().

interpretDecl()

llvm::Expected< bool > EvalEmitter::interpretDecl

(

const VarDecl *

VD

)

Definition at line 38 of file EvalEmitter.cpp.

References visitDecl().

interpretExpr()

llvm::Expected< bool > EvalEmitter::interpretExpr

(

const Expr *

E

)

Definition at line 30 of file EvalEmitter.cpp.

References visitExpr().

jump()

bool EvalEmitter::jump ( const LabelTy &  Label )

protected

Definition at line 96 of file EvalEmitter.cpp.

References Label.

jumpFalse()

bool EvalEmitter::jumpFalse ( const LabelTy &  Label )

protected

Definition at line 88 of file EvalEmitter.cpp.

References Label, clang::interp::InterpStack::pop(), and clang::interp::InterpState::Stk.

jumpTrue()

bool EvalEmitter::jumpTrue ( const LabelTy &  Label )

protected

Emits jumps.

Definition at line 80 of file EvalEmitter.cpp.

References Label, clang::interp::InterpStack::pop(), and clang::interp::InterpState::Stk.

visitDecl()

virtual bool clang::interp::EvalEmitter::visitDecl ( const VarDecl *  VD )

protectedpure virtual

Referenced by interpretDecl().

visitExpr()

virtual bool clang::interp::EvalEmitter::visitExpr ( const Expr *  E )

protectedpure virtual

Methods implemented by the compiler.

Referenced by interpretExpr().

Member Data Documentation

Descriptors

llvm::SmallVector<SmallVector<Local, 8>, 2> clang::interp::EvalEmitter::Descriptors

protected

Local descriptors.

Definition at line 80 of file EvalEmitter.h.

Params

llvm::DenseMap<const ParmVarDecl *, unsigned> clang::interp::EvalEmitter::Params

protected

Parameter indices.

Definition at line 78 of file EvalEmitter.h.

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The documentation for this class was generated from the following files:

• lib/AST/Interp/EvalEmitter.h
• lib/AST/Interp/EvalEmitter.cpp