[llvm] [SLP]Improve isGatherShuffledEntry by trying per-register shuffle. (PR #66542)

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Thu Oct 5 09:34:33 PDT 2023


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git-clang-format --diff 77feba5a92a8526d237abb6fe778d63a4a9ba5b7 ebe5674fc743461e03c9ff88f470683ce809573e -- llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
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View the diff from clang-format here.
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diff --git a/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp b/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
index 0932bc154140..141d6ee80343 100644
--- a/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
+++ b/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
@@ -9465,8 +9465,8 @@ BoUpSLP::isGatherShuffledSingleRegisterEntry(
   Entries.swap(TempEntries);
   if (EntryLanes.size() == Entries.size() &&
       !VL.equals(ArrayRef(TE->Scalars)
-                        .slice(Part * VL.size(),
-                               std::min<int>(VL.size(), TE->Scalars.size())))) {
+                     .slice(Part * VL.size(),
+                            std::min<int>(VL.size(), TE->Scalars.size())))) {
     // We may have here 1 or 2 entries only. If the number of scalars is equal
     // to the number of entries, no need to do the analysis, it is not very
     // profitable. Since VL is not the same as TE->Scalars, it means we already

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https://github.com/llvm/llvm-project/pull/66542


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