[PATCH] D69355: [AMDGPU] Skip additional folding on the same operand.

[Michael Liao via Phabricator via llvm-commits]

hliao created this revision.
hliao added reviewers: rampitec, arsenm.
Herald added subscribers: llvm-commits, hiraditya, t-tye, tpr, dstuttard, yaxunl, nhaehnle, wdng, jvesely, kzhuravl.
Herald added a project: LLVM.
hliao added a comment.

This patch fixes a crash, which is caused by the same instruction is added as a candidate twice after commuting.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D69355

Files:
  llvm/lib/Target/AMDGPU/SIFoldOperands.cpp
  llvm/test/CodeGen/AMDGPU/operand-folding.ll

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