[PATCH] D96913: [AArch64][GlobalISel] Run redundant_sext_inreg in the post-legalizer combiner

[Jessica Paquette via Phabricator via llvm-commits]

paquette created this revision.
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Herald added subscribers: danielkiss, hiraditya, kristof.beyls, rovka.
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This is to ensure that we can eliminate G_ASSERT_SEXT.

In a follow-up patch, I'm going to make CallLowering emit G_ASSERT_SEXT for `signext` parameters.


https://reviews.llvm.org/D96913

Files:
  llvm/lib/Target/AArch64/AArch64Combine.td
  llvm/test/CodeGen/AArch64/GlobalISel/combine-sext-trunc-sextload.mir
  llvm/test/CodeGen/AArch64/GlobalISel/postlegalizer-combiner-redundant-sextinreg.mir

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