diff options
Diffstat (limited to 'llvm/lib/Analysis')
| -rw-r--r-- | llvm/lib/Analysis/ValueTracking.cpp | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/llvm/lib/Analysis/ValueTracking.cpp b/llvm/lib/Analysis/ValueTracking.cpp index 1171149180b..e25087e6911 100644 --- a/llvm/lib/Analysis/ValueTracking.cpp +++ b/llvm/lib/Analysis/ValueTracking.cpp @@ -380,9 +380,7 @@ void llvm::computeKnownBitsFromRangeMetadata(const MDNode &Ranges, ConstantInt *Upper = mdconst::extract<ConstantInt>(Ranges.getOperand(2 * i + 1)); ConstantRange Range(Lower->getValue(), Upper->getValue()); - if (Range.isWrappedSet()) - MinLeadingZeros = 0; // -1 has no zeros - unsigned LeadingZeros = (Upper->getValue() - 1).countLeadingZeros(); + unsigned LeadingZeros = Range.getUnsignedMax().countLeadingZeros(); MinLeadingZeros = std::min(LeadingZeros, MinLeadingZeros); } |
