[PATCH] D40290: [X86] Fix a bug in handling GRXX subclasses in Domain Reassignment pass

Tue Nov 21 02:12:29 PST 2017

guyblank created this revision.

When choosing the mask register class to convert to, only "regular" GPR classes were handled (GR8, GR16, GR32, GR64),
The patch adds handling for their subclasses as well.
Added a 32 bit RUN line to the test, so classes like GR8_ABCD and such will be used. This would fail with an assertion without the patch.

https://reviews.llvm.org/D40290

Files:
  lib/Target/X86/X86DomainReassignment.cpp
  test/CodeGen/X86/gpr-to-mask.ll

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