[PATCH] D34545: [AMDGPU] Simplify setcc (sext from i1 b), -1|0, cc

[Matt Arsenault via Phabricator via llvm-commits]

arsenm added a comment.

There are already an extensive number of combines that do this sort of thing in the generic DAGcombiner. Have you looked into why those aren't working? I know some are broken because they don't properly check the TargetBooalenContents


https://reviews.llvm.org/D34545