13#ifndef LLVM_CLANG_AST_INTERP_EVALEMITTER_H
14#define LLVM_CLANG_AST_INTERP_EVALEMITTER_H
38 bool ConvertResultToRValue =
false,
39 bool DestroyToplevelScope =
false);
41 bool CheckFullyInitialized);
64 bool ConstantContext) = 0;
79 bool isActive()
const {
return CurrentLabel == ActiveLabel; }
81 return S.checkingForUndefinedBehavior();
93 llvm::DenseMap<const ParmVarDecl *, ParamOffset>
Params;
112 bool ConvertResultToRValue =
false;
115 bool CheckFullyInitialized =
false;
117 std::optional<PtrCallback> PtrCB;
122 Block *getLocal(
unsigned Index)
const {
123 assert(Index < Locals.size());
124 return reinterpret_cast<Block *
>(Locals[Index].get());
127 void updateGlobalTemporaries();
143#define GET_EVAL_PROTO
144#include "Opcodes.inc"
CallExpr - Represents a function call (C99 6.5.2.2, C++ [expr.call]).
This represents one expression.
Represents a function declaration or definition.
Represents a variable declaration or definition.
A memory block, either on the stack or in the heap.
Pointer into the code segment.
Holds all information required to evaluate constexpr code in a module.
std::optional< SourceInfo > LocOverride
bool jump(const LabelTy &Label)
virtual bool visitFunc(const FunctionDecl *F)=0
EvaluationResult interpretDecl(const VarDecl *VD, const Expr *Init, bool CheckFullyInitialized)
EvaluationResult interpretExpr(const Expr *E, bool ConvertResultToRValue=false, bool DestroyToplevelScope=false)
bool jumpFalse(const LabelTy &Label)
bool checkingForUndefinedBehavior() const
virtual bool visit(const Expr *E)=0
bool speculate(const CallExpr *E, const LabelTy &EndLabel)
Speculative execution.
Local createLocal(Descriptor *D)
Callback for registering a local.
bool interpretCall(const FunctionDecl *FD, const Expr *E)
Interpret the given expression as if it was in the body of the given function, i.e.
llvm::function_ref< bool(const Pointer &)> PtrCallback
void emitLabel(LabelTy Label)
Define a label.
bool isActive() const
Since expressions can only jump forward, predicated execution is used to deal with if-else statements...
virtual bool visitExpr(const Expr *E, bool DestroyToplevelScope)=0
Methods implemented by the compiler.
bool fallthrough(const LabelTy &Label)
virtual bool visitDeclAndReturn(const VarDecl *VD, const Expr *Init, bool ConstantContext)=0
void cleanup()
Clean up all resources.
LabelTy getLabel()
Create a label.
llvm::DenseMap< const ValueDecl *, ParamOffset > LambdaCaptures
Lambda captures.
EvaluationResult interpretAsPointer(const Expr *E, PtrCallback PtrCB)
Interpret the given Expr to a Pointer.
EvalEmitter(Context &Ctx, Program &P, State &Parent, InterpStack &Stk)
llvm::DenseMap< const ParmVarDecl *, ParamOffset > Params
Parameter indices.
virtual bool emitBool(bool V, const Expr *E)=0
ParamOffset LambdaThisCapture
Offset of the This parameter in a lambda record.
SourceInfo getSource(const Function *F, CodePtr PC) const override
Returns the source location of the current opcode.
llvm::SmallVector< SmallVector< Local, 8 >, 2 > Descriptors
Local descriptors.
bool jumpTrue(const LabelTy &Label)
Emits jumps.
Defines the result of an evaluation.
bool hasBody() const
Checks if the function already has a body attached.
SourceInfo getSource(CodePtr PC) const
Returns the source information at a given PC.
Stack frame storing temporaries and parameters.
A pointer to a memory block, live or dead.
The program contains and links the bytecode for all functions.
Describes the statement/declaration an opcode was generated from.
Interface for classes which map locations to sources.
Interface for the VM to interact with the AST walker's context.
bool Init(InterpState &S, CodePtr OpPC)
The JSON file list parser is used to communicate input to InstallAPI.
__UINTPTR_TYPE__ uintptr_t
An unsigned integer type with the property that any valid pointer to void can be converted to this ty...
Describes a memory block created by an allocation site.
Information about a local's storage.