[PATCH] D99507: [amdgpu] Add a pass to avoid jump into blocks with 0 exec mask.
Jay Foad via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Mon Mar 29 07:46:30 PDT 2021
foad added inline comments.
================
Comment at: llvm/lib/Target/AMDGPU/SIAvoidZeroExecMask.cpp:19
+// In case the mask to be restored needs reloading at the beginning of a block,
+// relax the eager exec mask evaluation in the corresponding predecessor block.
+//
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I don't know what you mean by "relax" here.
This comment doesn't explain //why// you'd want to do this transformation.
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D99507/new/
https://reviews.llvm.org/D99507
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