Revert r54876 r54877 r54906 and r54907. Evan found that these caused a 20%
authorNick Lewycky <nicholas@mxc.ca>
Thu, 21 Aug 2008 05:56:10 +0000 (05:56 +0000)
committerNick Lewycky <nicholas@mxc.ca>
Thu, 21 Aug 2008 05:56:10 +0000 (05:56 +0000)
commit5d52c4501a3f59b134521ba7dbcf00050218a639
tree0861f257d7acf4ad502710aa747fde0363dbbf7c
parent1f0f37a7429eac80421236dd62eaa13dbe4d3893
Revert r54876 r54877 r54906 and r54907. Evan found that these caused a 20%
slowdown in bzip2.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55113 91177308-0d34-0410-b5e6-96231b3b80d8
lib/Transforms/Scalar/InstructionCombining.cpp
test/Transforms/InstCombine/2008-08-17-ICmpXorSignbit.ll