[PATCH] D40193: [DAGCombine] Disable finding better chains for stores at O0

[Simon Dardis via Phabricator via llvm-commits]

sdardis updated this revision to Diff 123483.
sdardis added reviewers: craig.topper, t.p.northover.
sdardis added a comment.
Herald added a subscriber: javed.absar.

Updating for review comments.

The requested change has lead to some test changes, so I'll wait for additional comments before committing this.

I'm adding people who've touched those test files last for comments.


https://reviews.llvm.org/D40193

Files:
  lib/CodeGen/SelectionDAG/DAGCombiner.cpp
  test/CodeGen/ARM/alloc-no-stack-realign.ll
  test/CodeGen/Mips/dagcombine-store-gep-chain-slow.ll
  test/CodeGen/X86/pr32284.ll
  test/CodeGen/X86/pr32345.ll

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