[clang-tools-extra] [llvm] [clang] [SLP]Improve findReusedOrderedScalars and graph rotation. (PR #77529)

[Simon Pilgrim via cfe-commits]

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@@ -2418,7 +2418,8 @@ class BoUpSLP {
   std::optional<TargetTransformInfo::ShuffleKind>
   isGatherShuffledSingleRegisterEntry(
       const TreeEntry *TE, ArrayRef<Value *> VL, MutableArrayRef<int> Mask,
-      SmallVectorImpl<const TreeEntry *> &Entries, unsigned Part);
+      SmallVectorImpl<const TreeEntry *> &Entries, unsigned Part,
+      bool ForOrder);
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RKSimon wrote:

Add ForOrder to the doxygen description

https://github.com/llvm/llvm-project/pull/77529