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(parent: 87defd0) | patch
Remove a recently redundant transform from X86ISelLowering.
authorDavid Majnemer <david.majnemer@gmail.com>
Sun, 5 May 2013 02:00:10 +0000 (02:00 +0000)
committerDavid Majnemer <david.majnemer@gmail.com>
Sun, 5 May 2013 02:00:10 +0000 (02:00 +0000)
commit526f3ed7da88aa02bed42fe2238a60e3be64446b
tree035e07222a3a5e2d1fac36f3cb606cd0e34c6866tree | snapshot
parent87defd0924e08dd9c9db51e2fb208f289fa6adf7commit | diff
Remove a recently redundant transform from X86ISelLowering.

X86ISelLowering has support to treat:
(icmp ne (and (xor %flags, -1), (shl 1, flag)), 0)

as if it were actually:
(icmp eq (and %flags, (shl 1, flag)), 0)

However, r179386 has code at the InstCombine level to handle this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181145 91177308-0d34-0410-b5e6-96231b3b80d8
lib/Target/X86/X86ISelLowering.cpp diff | blob | history
test/CodeGen/X86/bt.ll diff | blob | history
C/C++ LLVM-based compilers that forbids OOTA behaviors