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Provide simpler ways to extract the value of an integer constant.

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llvm-svn: 223
This commit is contained in:
Vikram S. Adve 2001-07-20 21:11:07 +00:00
parent 0452d48c50
commit fcb6aefa90
1 changed files with 22 additions and 2 deletions
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22
llvm/include/llvm/ConstPoolVals.h
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@ -110,7 +110,7 @@ public:
return Val.Unsigned == V;
}
// isIntegral - Equilivent to isSigned() || isUnsigned, but with only a single
// isIntegral - Equivalent to isSigned() || isUnsigned, but with only a single
// virtual function invocation.
//
virtual bool isIntegral() const { return 1; }
@ -224,4 +224,24 @@ public:
inline const vector<Use> &getValues() const { return Operands; }
};
//===---------------------------------------------------------------------------
// External functions
//
// Convenience functions to get the value of an integer constant, for an
// appropriate integer or non-integer type that can be held in an integer.
// The type of the argument must be the following:
// GetSignedIntConstantValue: signed integer or bool
// GetUnsignedIntConstantValue: unsigned integer, bool, or pointer
// GetConstantValueAsSignedInt: any of the above, but the value
// must fit into a int64_t.
//
// isValidConstant is set to true if a valid constant was found.
//
int64_t GetSignedIntConstantValue (const Value* val, bool& isValidConst);
uint64_t GetUnsignedIntConstantValue (const Value* val, bool& isValidConst);
int64_t GetConstantValueAsSignedInt (const Value* val, bool& isValidConst);
//===---------------------------------------------------------------------------
#endif