c30bafc9b2757ead876b1e886be81607ebb93672 - llvm-project/llvm

commit: c30bafc9b2757ead876b1e886be81607ebb93672
[log]
author: Craig Topper <craig.topper@intel.com>
Wed Sep 02 20:44:12 2020 -0700
committer: Copybara-Service <copybara-worker@google.com>
Wed Oct 28 17:26:32 2020 -0700
tree: 48401011493af6b27a80db8b8677825d4cb32439
parent: b68ff3afbe311ae0a220b4b50e00bba359112247 [diff]

[CodeGenPrepare][X86] Teach optimizeGatherScatterInst to turn a splat pointer into GEP with scalar base and 0 index

This helps SelectionDAGBuilder recognize the splat can be used as a uniform base.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D86371

GitOrigin-RevId: b16e8687ab6c977ddab3409939e867828f394311

include/llvm/Analysis/VectorUtils.h[diff]
lib/Analysis/VectorUtils.cpp[diff]
lib/CodeGen/CodeGenPrepare.cpp[diff]
test/CodeGen/X86/masked_gather_scatter.ll[diff]
test/Transforms/CodeGenPrepare/X86/gather-scatter-opt.ll[diff]

5 files changed

tree: 48401011493af6b27a80db8b8677825d4cb32439