Chen Zheng 80f3bb4cf2 [PowerPC] adjust cost for vector insert/extract with non const index (#79092) ...

P9 has vxform `Vector Extract Element Instructions` like `vextuwrx` and
P10 has vxform `Vector Insert Element instructions` like `vinsd`. Update
the instruction cost reflecting these instructions.

Fixes https://github.com/llvm/llvm-project/issues/50249

2024-02-19 09:57:49 +08:00

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