[libcxx-commits] [flang] [lld] [clang-tools-extra] [compiler-rt] [llvm] [libcxx] [lldb] [libc] [clang] [AMDGPU][GFX12] VOP encoding and codegen - add support for v_cvt fp8/… (PR #78414)

[Mariusz Sikora via libcxx-commits]

mariusz-sikora-at-amd wrote:

> > Correct, some of these instructions use opsel[1] which in LLVM in stored in src1_modifiers so a dummy src1 is used.
> 
> Why can't we just use `SRCMODS.OP_SEL_1` with src0?

When referring to `SRCMODS.OP_SEL_1` you are referring to `src1_modifier` (second bit in `OPSEL`) or you are referring to `OPSEL_HI` ?

https://github.com/llvm/llvm-project/pull/78414