diff options
Diffstat (limited to 'lib/Analysis/DemandedBits.cpp')
| -rw-r--r-- | lib/Analysis/DemandedBits.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/Analysis/DemandedBits.cpp b/lib/Analysis/DemandedBits.cpp index 8f808f3e78719..926b28d6094a5 100644 --- a/lib/Analysis/DemandedBits.cpp +++ b/lib/Analysis/DemandedBits.cpp @@ -107,6 +107,8 @@ void DemandedBits::determineLiveOperandBits( AB = AOut.byteSwap(); break; case Intrinsic::bitreverse: + // The alive bits of the input are the reversed alive bits of + // the output. AB = AOut.reverseBits(); break; case Intrinsic::ctlz: |