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Add long-overdue helpers for getting constants with known upper bits

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23426 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2005-09-24 22:57:28 +00:00
parent 5d735bf29b
commit a58ef7b652
1 changed files with 14 additions and 0 deletions
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14
include/llvm/Constants.h
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@ -55,6 +55,20 @@ public:
/// ///
inline uint64_t getRawValue() const { return Val.Unsigned; } inline uint64_t getRawValue() const { return Val.Unsigned; }
/// getZExtValue - Return the constant zero extended as appropriate for this
/// type.
inline uint64_t getZExtValue() const {
unsigned Size = getType()->getPrimitiveSizeInBits();
return Val.Unsigned & (~0ULL >> (64-Size));
}
/// getSExtValue - Return the constant sign extended as appropriate for this
/// type.
inline int64_t getSExtValue() const {
unsigned Size = getType()->getPrimitiveSizeInBits();
return (Val.Signed << (64-Size)) >> (64-Size);
}
/// isNullValue - Return true if this is the value that would be returned by /// isNullValue - Return true if this is the value that would be returned by
/// getNullValue. /// getNullValue.
/// ///