[PATCH] D60889: [GlobalISel][AArch64] Add generic legalization rule for extends

[Jessica Paquette via Phabricator via llvm-commits]

paquette created this revision.
paquette added a reviewer: aemerson.
Herald added subscribers: Petar.Avramovic, hiraditya, kristof.beyls, javed.absar, rovka.
Herald added a project: LLVM.

This adds a legalization rule for G_ZEXT, G_ANYEXT, and G_SEXT which allows extends whenever the types will fit in registers (or the source is an s1).

      

Update tests. Add GISel checks throughout all of arm64-vabs.ll, where we now select a good portion of the code. Add GISel checks to arm64-subvector-extend.ll, which has a good number of vector extends in it.


https://reviews.llvm.org/D60889

Files:
  llvm/lib/Target/AArch64/AArch64LegalizerInfo.cpp
  llvm/test/CodeGen/AArch64/GlobalISel/legalize-ext.mir
  llvm/test/CodeGen/AArch64/GlobalISel/legalizer-info-validation.mir
  llvm/test/CodeGen/AArch64/GlobalISel/select-int-ext.mir
  llvm/test/CodeGen/AArch64/arm64-subvector-extend.ll
  llvm/test/CodeGen/AArch64/arm64-vabs.ll

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