//
// The LLVM Compiler Infrastructure
//
-// This file was developed by Chris Lattner and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
InlineAsm(const FunctionType *Ty, const std::string &AsmString,
const std::string &Constraints, bool hasSideEffects);
+ virtual ~InlineAsm();
public:
/// InlineAsm::get - Return the the specified uniqued inline asm string.
const std::string &getConstraintString() const { return Constraints; }
virtual void print(std::ostream &O) const { print(O, 0); }
+ void print(std::ostream *O) const { if (O) print(*O); }
void print(std::ostream &OS, AssemblyAnnotationWriter *AAW) const;
/// Verify - This static method can be used by the parser to check to see if
enum ConstraintPrefix {
isInput, // 'x'
isOutput, // '=x'
- isClobber, // '~x'
+ isClobber // '~x'
};
struct ConstraintInfo {
/// read. This is only ever set for an output operand.
bool isEarlyClobber;
- /// isIndirectOutput - If this is true for an output constraint, the address
- /// to store the output result is passed as an operand to the call.
- bool isIndirectOutput;
+ /// hasMatchingInput - This is set to true for an output constraint iff
+ /// there is an input constraint that is required to match it (e.g. "0").
+ bool hasMatchingInput;
+
+ /// isCommutative - This is set to true for a constraint that is commutative
+ /// with the next operand.
+ bool isCommutative;
+
+ /// isIndirect - True if this operand is an indirect operand. This means
+ /// that the address of the source or destination is present in the call
+ /// instruction, instead of it being returned or passed in explicitly. This
+ /// is represented with a '*' in the asm string.
+ bool isIndirect;
/// Code - The constraint code, either the register name (in braces) or the
/// constraint letter/number.
std::vector<std::string> Codes;
- /// Parse - Analyze the specified string (e.g. "==&{eax}") and fill in the
+ /// Parse - Analyze the specified string (e.g. "=*&{eax}") and fill in the
/// fields in this structure. If the constraint string is not understood,
/// return true, otherwise return false.
- bool Parse(const std::string &Str);
+ bool Parse(const std::string &Str,
+ std::vector<InlineAsm::ConstraintInfo> &ConstraintsSoFar);
};
/// ParseConstraints - Split up the constraint string into the specific
// Methods for support type inquiry through isa, cast, and dyn_cast:
static inline bool classof(const InlineAsm *) { return true; }
static inline bool classof(const Value *V) {
- return V->getValueType() == Value::InlineAsmVal;
+ return V->getValueID() == Value::InlineAsmVal;
}
};