[llvm] [AArch64][SVE] Fold nested boolean UMIN trees (PR #209234)

[Paul Walker via llvm-commits]

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@@ -3235,6 +3235,39 @@ instCombineInStreamingMode(InstCombiner &IC, IntrinsicInst &II) {
   return std::nullopt;
 }
 
+static std::optional<Instruction *> instCombineSVEUMin(InstCombiner &IC,
+                                                       IntrinsicInst &II) {
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paulwalker-arm wrote:

Please add a comment to describe the transformation.

https://github.com/llvm/llvm-project/pull/209234