[llvm] [AMDGPU] Model GFX1250 VALU blocking cycles (PR #222483)

[via llvm-commits]

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hidekisaito wrote:

You are right about VOP2 _pseudo f64 add/mul. They need blocking cycles. Will add. There are some more missing, too. Will take care of them as well.

https://github.com/llvm/llvm-project/pull/222483