1 files changed, 1 insertions, 3 deletions
diff --git a/lib/Transforms/Scalar/GuardWidening.cpp b/lib/Transforms/Scalar/GuardWidening.cpp
index 198d2b2b024f..65a2cd955672 100644
--- a/lib/Transforms/Scalar/GuardWidening.cpp
+++ b/lib/Transforms/Scalar/GuardWidening.cpp
@@ -537,9 +537,7 @@ bool GuardWideningImpl::parseRangeChecks(
       Changed = true;
     } else if (match(Check.getBase(),
                      m_Or(m_Value(OpLHS), m_ConstantInt(OpRHS)))) {
-      unsigned BitWidth = OpLHS->getType()->getScalarSizeInBits();
-      KnownBits Known(BitWidth);
-      computeKnownBits(OpLHS, Known, DL);
+      KnownBits Known = computeKnownBits(OpLHS, DL);
       if ((OpRHS->getValue() & Known.Zero) == OpRHS->getValue()) {
         Check.setBase(OpLHS);
         APInt NewOffset = Check.getOffsetValue() + OpRHS->getValue();