| commit | 70a10441b95ef578d92b2bd6e5d29bc8b3a6af04 | [log] [tgz] |
|---|---|---|
| author | Sanjay Patel <spatel@rotateright.com> | Sat Feb 09 17:03:59 2019 +0000 |
| committer | Sanjay Patel <spatel@rotateright.com> | Sat Feb 09 17:03:59 2019 +0000 |
| tree | ed70292165c2a6ff576748a1ea3d9880224123b5 | |
| parent | 04e18cd6ef2b70b210ae2610de3ffb8dc6570567 [diff] |
[TargetLowering] add tests to show effect of setcc sub->shift; NFC There's effectively no difference for the cases with variables. We just trade a sub for an add on those. But the case with a subtract from constant would require an extra move instruction on x86, so this looks like a reasonable generic combine. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@353619 91177308-0d34-0410-b5e6-96231b3b80d8