[PATCH] D45543: [globalisel] Add a combiner helpers for extending loads and use them in a pre-legalize combiner for AArch64

[Daniel Sanders via Phabricator via llvm-commits]

dsanders added a comment.

I believe the only remaining issue on this was the compile-time impact. I've run CTMark* before and after and found that no tests were significantly different. The geomean was improved by 1.24%. I'm going to be working on the combiner infrastructure for the next few months so if there are any further issues that come up we can address them post-commit.

- Except bullet, kc, and tramp3d-v4 as these don't seem to build when I target AArch64. They all fail due to missing headers for me.


Repository:
  rL LLVM

https://reviews.llvm.org/D45543