[X86] Add test cases for the patterns used by __builtin_ffs.
authorCraig Topper <craig.topper@intel.com>
Wed, 1 Aug 2018 18:38:43 +0000 (18:38 +0000)
committerCraig Topper <craig.topper@intel.com>
Wed, 1 Aug 2018 18:38:43 +0000 (18:38 +0000)
commitffb8eb30ff85d5d2ffbfbebc36b0f2002dc3aa99
tree99eac15ef21c467223cc8f62ff6266d97a527cf4
parent95d8c464d8ff334e7ceaa1630a6d39a5cb72e69c
[X86] Add test cases for the patterns used by __builtin_ffs.

We previously had tests for "__builtin_ffs + 5", but the SelectinoDAG without an extra addition came out slightly different.

llvm-svn: 338612
llvm/test/CodeGen/X86/dagcombine-select.ll