[PATCH] D99549: [LoopVectorize] Use SetVector to track uniform uses to prevent non-determinism.

Huihui Zhang via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Wed Mar 31 11:21:29 PDT 2021


This revision was automatically updated to reflect the committed changes.
Closed by commit rGfe5c4a06a49c: [LoopVectorize] Use SetVector to track uniform uses to prevent non-determinism. (authored by huihuiz).

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D99549/new/

https://reviews.llvm.org/D99549

Files:
  llvm/lib/Transforms/Vectorize/LoopVectorize.cpp


Index: llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
===================================================================
--- llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
+++ llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
@@ -5413,7 +5413,7 @@
   // here is something which only demands lane 0 of the unrolled iterations;
   // it does not imply that all lanes produce the same value (e.g. this is not
   // the usual meaning of uniform)
-  SmallPtrSet<Value *, 8> HasUniformUse;
+  SetVector<Value *> HasUniformUse;
 
   // Scan the loop for instructions which are either a) known to have only
   // lane 0 demanded or b) are uses which demand only lane 0 of their operand.


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