[Mlir-commits] [mlir] [AMD][ROCDL][AMDGPU] Support packed conversions fp8/bf8->bf16 and fp8/bf8->fp32 (PR #131850)

[Krzysztof Drewniak]

krzysz00 wrote:

@yiqian1 Please add guards to prevent using the bf16 instructions on gfx942

That is, 
```
%y = arith.extf %x : f8E4M3FNUZ to bf16
```
on gfx942 needs to go via `f32`

https://github.com/llvm/llvm-project/pull/131850