[llvm] [VectorCombine] Add foldShuffleOfIntrinsics. (PR #106502)

[Han-Kuan Chen via llvm-commits]

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@@ -0,0 +1,81 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
+; RUN: opt -passes=vector-combine -S %s | FileCheck %s
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HanKuanChen wrote:

Is this a bad idea? Different CPUs may have different cost model, but the optimization should be good.

https://github.com/llvm/llvm-project/pull/106502