[llvm] 6fa07a8 - [LV] Document selectEpilogueVectorizationFactor (NFC).
Florian Hahn via llvm-commits
llvm-commits at lists.llvm.org
Sun Apr 30 13:10:01 PDT 2023
Author: Florian Hahn
Date: 2023-04-30T21:09:24+01:00
New Revision: 6fa07a87abc96c3b924be07ce446e79691a7f186
URL: https://github.com/llvm/llvm-project/commit/6fa07a87abc96c3b924be07ce446e79691a7f186
DIFF: https://github.com/llvm/llvm-project/commit/6fa07a87abc96c3b924be07ce446e79691a7f186.diff
LOG: [LV] Document selectEpilogueVectorizationFactor (NFC).
Add missing documentation for selectEpilogueVectorizationFactor.
Suggested as independent improvement in D143938.
Added:
Modified:
llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
Removed:
################################################################################
diff --git a/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp b/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
index 54fee331ca39..6418bba94a22 100644
--- a/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
+++ b/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
@@ -1199,6 +1199,9 @@ class LoopVectorizationCostModel {
VectorizationFactor
selectVectorizationFactor(const ElementCountSet &CandidateVFs);
+ /// \return The most profitable vectorization factor and the cost of that VF
+ /// for vectorizing the epilogue. Returns VectorizationFactor::Disabled if
+ /// epilogue vectorization is not supported for the loop.
VectorizationFactor
selectEpilogueVectorizationFactor(const ElementCount MaxVF,
const LoopVectorizationPlanner &LVP);
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