[X86] Clear KnownBits instead of reconstructing it. NFC
authorCraig Topper <craig.topper@gmail.com>
Sun, 30 Apr 2017 07:44:55 +0000 (07:44 +0000)
committerCraig Topper <craig.topper@gmail.com>
Sun, 30 Apr 2017 07:44:55 +0000 (07:44 +0000)
commitd503644a4a070e84addb5bd6a31f0d62e3877d5f
tree1552a89ae868bc93363996cf2434aef16be06f8b
parent9d8cd821e690e4bcb2d5277423a1f807ed45a4c8
[X86] Clear KnownBits instead of reconstructing it. NFC

llvm-svn: 301767
llvm/lib/Target/X86/X86ISelLowering.cpp