Temporarily reverting r55137. This was causing the bootstrap to go into an
infinite loop.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55149 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/ValueTracking.cpp b/lib/Analysis/ValueTracking.cpp
index b956d39..3a04f5e 100644
--- a/lib/Analysis/ValueTracking.cpp
+++ b/lib/Analysis/ValueTracking.cpp
@@ -509,13 +509,9 @@
ComputeMaskedBits(R, Mask2, KnownZero2, KnownOne2, TD, Depth+1);
Mask2 = APInt::getLowBitsSet(BitWidth,
KnownZero2.countTrailingOnes());
-
- // We need to take the minimum number of known bits
- APInt KnownZero3(KnownZero), KnownOne3(KnownOne);
- KnownOne3.clear();
- KnownZero3.clear();
- ComputeMaskedBits(L, Mask2, KnownZero3, KnownOne3, TD, Depth+1);
-
+ KnownOne2.clear();
+ KnownZero2.clear();
+ ComputeMaskedBits(L, Mask2, KnownZero2, KnownOne2, TD, Depth+1);
KnownZero = Mask &
APInt::getLowBitsSet(BitWidth,
KnownZero2.countTrailingOnes());