Differential D106768

[AArch4][GlobalISel] Post-legalize combine s64 = G_MERGE s32, 0 -> G_ZEXT.
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Authored by aemerson on Jul 25 2021, 7:35 AM.

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paquette
jroelofs

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rG6af8d360546e: [AArch4][GlobalISel] Post-legalize combine s64 = G_MERGE s32, 0 -> G_ZEXT.

Summary

These are generated as a byproduce of legalization.

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Repository: rG LLVM Github Monorepo

Event Timeline

aemerson created this revision.Jul 25 2021, 7:35 AM

Herald added subscribers: hiraditya, rovka. · View Herald TranscriptJul 25 2021, 7:35 AM

aemerson requested review of this revision.Jul 25 2021, 7:35 AM

aemerson added a parent revision: D106762: [AArch64][GlobalISel] Enable some select combines after legalization.

Harbormaster completed remote builds in B116071: Diff 361504.Jul 25 2021, 8:28 AM

aemerson mentioned this in D106494: [AArch64][GlobalISel] Legalize ctpop s128.Jul 25 2021, 2:06 PM

aemerson added a child revision: D106776: [GlobalISel] Add a constant folding combine..Jul 25 2021, 3:10 PM

LGTM

This revision is now accepted and ready to land.Jul 25 2021, 10:46 PM

jroelofs accepted this revision.Jul 26 2021, 10:36 AM

This revision was landed with ongoing or failed builds.Jul 26 2021, 10:58 AM

Closed by commit rG6af8d360546e: [AArch4][GlobalISel] Post-legalize combine s64 = G_MERGE s32, 0 -> G_ZEXT. (authored by aemerson). · Explain Why

This revision was automatically updated to reflect the committed changes.

aemerson added a commit: rG6af8d360546e: [AArch4][GlobalISel] Post-legalize combine s64 = G_MERGE s32, 0 -> G_ZEXT..

Revision Contents
Changeset List

Path

Size

llvm/

lib/

Target/

AArch64/

AArch64Combine.td

9 lines

GISel/

AArch64PostLegalizerCombiner.cpp

22 lines

test/

CodeGen/

AArch64/

GlobalISel/

postlegalizer-combiner-merge.mir

22 lines

Diff 361726

llvm/lib/Target/AArch64/AArch64Combine.td

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llvm/lib/Target/AArch64/GISel/AArch64PostLegalizerCombiner.cpp

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llvm/test/CodeGen/AArch64/GlobalISel/postlegalizer-combiner-merge.mir

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