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172051a1

Commit 172051a1 authored 3 years ago by Amara Emerson

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[AArch64][GlobalISel] Add identity combines to post-legal combiner.

We see some shifts of zero emitted during legalization.

Differential Revision: https://reviews.llvm.org/D106816

parent c5d8bd5a

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llvm/lib/Target/AArch64/AArch64Combine.td 1 addition, 1 deletion

llvm/lib/Target/AArch64/AArch64Combine.td
llvm/test/CodeGen/AArch64/GlobalISel/arm64-atomic-128.ll 4 additions, 8 deletions

llvm/test/CodeGen/AArch64/GlobalISel/arm64-atomic-128.ll
llvm/test/CodeGen/AArch64/GlobalISel/postlegalizer-combiner-identity.mir 24 additions, 0 deletions

...en/AArch64/GlobalISel/postlegalizer-combiner-identity.mir
llvm/test/CodeGen/AArch64/GlobalISel/postlegalizercombiner-select.mir 1 addition, 3 deletions

...deGen/AArch64/GlobalISel/postlegalizercombiner-select.mir
llvm/test/CodeGen/AArch64/fold-global-offsets.ll 0 additions, 1 deletion

llvm/test/CodeGen/AArch64/fold-global-offsets.ll

with 30 additions and 13 deletions

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