[llvm] [SLP] Enable reordering for non-power-of-two vectors (PR #106638)

[Alexey Bataev via llvm-commits]

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@@ -3388,6 +3388,8 @@ class BoUpSLP {
     TreeEntry *Last = VectorizableTree.back().get();
     Last->Idx = VectorizableTree.size() - 1;
     Last->State = EntryState;
+    assert((has_single_bit(VL.size()) || ReuseShuffleIndices.empty()) &&
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alexey-bataev wrote:

Add a FIXME to remove this later

https://github.com/llvm/llvm-project/pull/106638