diff options
Diffstat (limited to 'llvm/lib/Transforms/Scalar/SimplifyLibCalls.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Scalar/SimplifyLibCalls.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/llvm/lib/Transforms/Scalar/SimplifyLibCalls.cpp b/llvm/lib/Transforms/Scalar/SimplifyLibCalls.cpp index 90efa8ae0e0..c82a00fc2c8 100644 --- a/llvm/lib/Transforms/Scalar/SimplifyLibCalls.cpp +++ b/llvm/lib/Transforms/Scalar/SimplifyLibCalls.cpp @@ -772,8 +772,8 @@ struct FFSOpt : public LibCallOptimization { // Constant fold. if (ConstantInt *CI = dyn_cast<ConstantInt>(Op)) { - if (CI->getValue() == 0) // ffs(0) -> 0. - return Constant::getNullValue(CI->getType()); + if (CI->isZero()) // ffs(0) -> 0. + return B.getInt32(0); // ffs(c) -> cttz(c)+1 return B.getInt32(CI->getValue().countTrailingZeros() + 1); } |
