[llvm] [SLP]Improve masked loads vectorization, attempting gathered loads (PR #110151)

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Thu Sep 26 11:14:02 PDT 2024


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git-clang-format --diff 9abf6d3506c7289e062836cb9f70a9eaa56bcb68 e4768e045c2f56ccfdf0cbeeaacb0cacd754fb22 --extensions cpp -- llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
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View the diff from clang-format here.
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``````````diff
diff --git a/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp b/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
index 62c77704d9..875e515691 100644
--- a/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
+++ b/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
@@ -6968,8 +6968,7 @@ void BoUpSLP::tryToVectorizeGatheredLoads(
   // Try to vectorize postponed load entries, previously marked as gathered.
   for (unsigned Idx : LoadEntriesToVectorize) {
     const TreeEntry &E = *VectorizableTree[Idx];
-    SmallVector<Value *> GatheredScalars(E.Scalars.begin(),
-                                         E.Scalars.end());
+    SmallVector<Value *> GatheredScalars(E.Scalars.begin(), E.Scalars.end());
     // Avoid reordering, if possible.
     if (!E.ReorderIndices.empty()) {
       // Build a mask out of the reorder indices and reorder scalars per this

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https://github.com/llvm/llvm-project/pull/110151


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