[llvm] AMDGPU/GlobalISel: Regbanklegalize rules for G_FMIN*/MAX* (PR #179778)

[Mirko Brkušanin via llvm-commits]

mbrkusanin wrote:

> Might be worth checking in detail, but think _IEEE version are not used on newer targets and none of the targets that use _IEEE version has SALU floats

`IEEEMinimumMaximumInsts` should be the relevant feature not `SALUFloatInsts`.

https://github.com/llvm/llvm-project/pull/179778