diff options
| -rw-r--r-- | llvm/lib/Analysis/ValueTracking.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/llvm/lib/Analysis/ValueTracking.cpp b/llvm/lib/Analysis/ValueTracking.cpp index 3a0efa76b2f..6fdf4afebc2 100644 --- a/llvm/lib/Analysis/ValueTracking.cpp +++ b/llvm/lib/Analysis/ValueTracking.cpp @@ -831,6 +831,9 @@ void computeKnownBits(Value *V, APInt &KnownZero, APInt &KnownOne, if (Align) KnownZero = APInt::getLowBitsSet(BitWidth, countTrailingZeros(Align)); + else + KnownZero.clearAllBits(); + KnownOne.clearAllBits(); // Don't give up yet... there might be an assumption that provides more // information... |
