[PATCH] D23677: [AArch64] Avoid materializing constant values when generating csel instructions.

Chad Rosier via llvm-commits llvm-commits at lists.llvm.org
Fri Aug 26 10:20:07 PDT 2016


mcrosier retitled this revision from "[AArch64] Avoid materializing constant values when generating csel/csinv/csinc instructions." to "[AArch64] Avoid materializing constant values when generating csel instructions.".
mcrosier added a reviewer: efriedma.
mcrosier removed a subscriber: efriedma.
mcrosier updated this revision to Diff 69393.
mcrosier added a comment.

I found very few cases where the csinc/csinv optimizations actually hit, so I'm limiting this patch to just csel to simplify the logic/review.


https://reviews.llvm.org/D23677

Files:
  lib/Target/AArch64/AArch64ISelLowering.cpp
  test/CodeGen/AArch64/cond-sel-value-prop.ll

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