[PATCH] D121335: [SDAG] Use MMO flags in MemSDNode folding

Stanislav Mekhanoshin via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Wed Mar 9 13:54:15 PST 2022


rampitec created this revision.
rampitec added reviewers: foad, arsenm, pete, bogner.
Herald added subscribers: kerbowa, hiraditya, tpr, jvesely.
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rampitec requested review of this revision.
Herald added a subscriber: wdng.
Herald added a project: LLVM.

SDNodes with different target flags may now be folded together
rightfully resulting in the assertion in the refineAlignment.
Folding nodes with different target flags may result in the
wrong load instructions produced at least on the AMDGPU.

Fixes: SWDEV-326805


https://reviews.llvm.org/D121335

Files:
  llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
  llvm/test/CodeGen/AMDGPU/mmo-target-flags-folding.ll

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