clang  6.0.0svn
Functions
SemaStmtAsm.cpp File Reference
#include "clang/AST/ExprCXX.h"
#include "clang/AST/RecordLayout.h"
#include "clang/AST/TypeLoc.h"
#include "clang/Basic/TargetInfo.h"
#include "clang/Lex/Preprocessor.h"
#include "clang/Sema/Initialization.h"
#include "clang/Sema/Lookup.h"
#include "clang/Sema/Scope.h"
#include "clang/Sema/ScopeInfo.h"
#include "clang/Sema/SemaInternal.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/StringSet.h"
#include "llvm/MC/MCParser/MCAsmParser.h"
Include dependency graph for SemaStmtAsm.cpp:

Go to the source code of this file.

Functions

static bool CheckAsmLValue (const Expr *E, Sema &S)
 CheckAsmLValue - GNU C has an extremely ugly extension whereby they silently ignore "noop" casts in places where an lvalue is required by an inline asm. More...
 
static bool isOperandMentioned (unsigned OpNo, ArrayRef< GCCAsmStmt::AsmStringPiece > AsmStrPieces)
 isOperandMentioned - Return true if the specified operand # is mentioned anywhere in the decomposed asm string. More...
 
static bool CheckNakedParmReference (Expr *E, Sema &S)
 
static bool checkExprMemoryConstraintCompat (Sema &S, Expr *E, TargetInfo::ConstraintInfo &Info, bool is_input_expr)
 Returns true if given expression is not compatible with inline assembly's memory constraint; false otherwise. More...
 
static StringRef extractRegisterName (const Expr *Expression, const TargetInfo &Target)
 
static SourceLocation getClobberConflictLocation (MultiExprArg Exprs, StringLiteral **Constraints, StringLiteral **Clobbers, int NumClobbers, const TargetInfo &Target, ASTContext &Cont)
 

Function Documentation

◆ CheckAsmLValue()

static bool CheckAsmLValue ( const Expr E,
Sema S 
)
static

CheckAsmLValue - GNU C has an extremely ugly extension whereby they silently ignore "noop" casts in places where an lvalue is required by an inline asm.

We emulate this behavior when -fheinous-gnu-extensions is specified, but provide a strong guidance to not use it.

This method checks to see if the argument is an acceptable l-value and returns false if it is a case we can handle.

Definition at line 37 of file SemaStmtAsm.cpp.

◆ checkExprMemoryConstraintCompat()

static bool checkExprMemoryConstraintCompat ( Sema S,
Expr E,
TargetInfo::ConstraintInfo Info,
bool  is_input_expr 
)
static

Returns true if given expression is not compatible with inline assembly's memory constraint; false otherwise.

Definition at line 114 of file SemaStmtAsm.cpp.

◆ CheckNakedParmReference()

static bool CheckNakedParmReference ( Expr E,
Sema S 
)
static

Definition at line 81 of file SemaStmtAsm.cpp.

Referenced by clang::Sema::LookupInlineAsmIdentifier().

◆ extractRegisterName()

static StringRef extractRegisterName ( const Expr Expression,
const TargetInfo Target 
)
static

◆ getClobberConflictLocation()

static SourceLocation getClobberConflictLocation ( MultiExprArg  Exprs,
StringLiteral **  Constraints,
StringLiteral **  Clobbers,
int  NumClobbers,
const TargetInfo Target,
ASTContext Cont 
)
static

◆ isOperandMentioned()

static bool isOperandMentioned ( unsigned  OpNo,
ArrayRef< GCCAsmStmt::AsmStringPiece AsmStrPieces 
)
static

isOperandMentioned - Return true if the specified operand # is mentioned anywhere in the decomposed asm string.

Definition at line 66 of file SemaStmtAsm.cpp.

References clang::GCCAsmStmt::AsmStringPiece::getOperandNo(), and clang::GCCAsmStmt::AsmStringPiece::isOperand().