diff options
Diffstat (limited to 'llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp')
| -rw-r--r-- | llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp b/llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp index ba9eb59e6fd..92a38f26dde 100644 --- a/llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp +++ b/llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp @@ -1399,7 +1399,9 @@ static Instruction *foldCttzCtlz(IntrinsicInst &II, InstCombiner &IC) { // If the input to cttz/ctlz is known to be non-zero, // then change the 'ZeroIsUndef' parameter to 'true' // because we know the zero behavior can't affect the result. - if (Known.One != 0 || isKnownNonZero(Op0, IC.getDataLayout())) { + if (Known.One != 0 || + isKnownNonZero(Op0, IC.getDataLayout(), 0, &IC.getAssumptionCache(), &II, + &IC.getDominatorTree())) { if (!match(II.getArgOperand(1), m_One())) { II.setOperand(1, IC.Builder->getTrue()); return ⅈ |
