[PATCH] D146823: [GVN] Avoid replacing uniforms with non-uniforms in propagateEquality
Sameer Sahasrabuddhe via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Wed Apr 12 01:59:03 PDT 2023
sameerds added a comment.
In D146823#4253084 <https://reviews.llvm.org/D146823#4253084>, @arsenm wrote:
> Could another pass undo this instead?
I assume you mean "undo" in a good way? That is, instead of depending on uniformity here, have another pass that replaces divergent values with uniform values, specific to targets that have divergence? Would that be like a "uniformity aware" GVN in MIR?
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https://reviews.llvm.org/D146823/new/
https://reviews.llvm.org/D146823
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