tree 97a13cf302560765c6b11772e89492122789fbc0
parent 7a3afa91ad8f68428373948fc16375e99bff3c6f
author Manman Ren <mren@apple.com> 1335826285 +0000
committer Manman Ren <mren@apple.com> 1335826285 +0000

X86: optimization for -(x != 0)

This patch will optimize -(x != 0) on X86
FROM 
cmpl	$0x01,%edi
sbbl	%eax,%eax
notl	%eax
TO
negl %edi
sbbl %eax %eax


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155853 91177308-0d34-0410-b5e6-96231b3b80d8