[llvm] [SLP]Initial support for (masked)loads + compress and (masked)interleaved (PR #132099)

[Simon Pilgrim via llvm-commits]

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@@ -3375,10 +3377,11 @@ class BoUpSLP {
     /// (either with vector instruction or with scatter/gather
     /// intrinsics for store/load)?
     enum EntryState {
-      Vectorize,         ///< The node is regularly vectorized.
-      ScatterVectorize,  ///< Masked scatter/gather node.
-      StridedVectorize,  ///< Strided loads (and stores)
-      NeedToGather,      ///< Gather/buildvector node.
+      Vectorize,                   ///< The node is regularly vectorized.
+      ScatterVectorize,            ///< Masked scatter/gather node.
+      StridedVectorize,            ///< Strided loads (and stores)
+      MaskedLoadCompressVectorize, ///< Masked load with compress.
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RKSimon wrote:

Aren't all compress nodes masked? Would CompressedVectorize be better?

https://github.com/llvm/llvm-project/pull/132099