[llvm-commits] [llvm] r55149 - /llvm/trunk/lib/Analysis/ValueTracking.cpp

[Bill Wendling]

Author: void
Date: Thu Aug 21 17:40:10 2008
New Revision: 55149

URL: http://llvm.org/viewvc/llvm-project?rev=55149&view=rev
Log:
Temporarily reverting r55137. This was causing the bootstrap to go into an
infinite loop.

Modified:
    llvm/trunk/lib/Analysis/ValueTracking.cpp

Modified: llvm/trunk/lib/Analysis/ValueTracking.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Analysis/ValueTracking.cpp?rev=55149&r1=55148&r2=55149&view=diff

==============================================================================
--- llvm/trunk/lib/Analysis/ValueTracking.cpp (original)
+++ llvm/trunk/lib/Analysis/ValueTracking.cpp Thu Aug 21 17:40:10 2008
@@ -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());