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Make isOneBitSet faster by using APInt::isPowerOf2. Thanks Chris.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35194 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Reid Spencer 2007-03-20 00:16:52 +00:00
parent 8cf47cef5c
commit 5f6a89562d
1 changed files with 1 additions and 1 deletions
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lib/Transforms/Scalar/InstructionCombining.cpp
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@ -3472,7 +3472,7 @@ static bool isMinValuePlusOne(const ConstantInt *C, bool isSigned) {
// isOneBitSet - Return true if there is exactly one bit set in the specified
// constant.
static bool isOneBitSet(const ConstantInt *CI) {
return CI->getValue().countPopulation() == 1;
return CI->getValue().isPowerOf2();
}
#if 0 // Currently unused