[llvm] [AMDGPU][GFX12] VOP encoding and codegen - add support for v_cvt fp8/… (PR #78414)

[Ivan Kosarev via llvm-commits]

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@@ -8765,6 +8786,11 @@ void AMDGPUAsmParser::cvtVOP3DPP(MCInst &Inst, const OperandVector &Operands,
   int OldIdx = AMDGPU::getNamedOperandIdx(Opc, AMDGPU::OpName::old);
   int Src2ModIdx =
       AMDGPU::getNamedOperandIdx(Opc, AMDGPU::OpName::src2_modifiers);
+  int VdstInIdx = AMDGPU::getNamedOperandIdx(Opc, AMDGPU::OpName::vdst_in);
+  bool IsVOP3CvtSrDpp = Opc == AMDGPU::V_CVT_SR_BF8_F32_e64_dpp8_gfx12 ||
+                        Opc == AMDGPU::V_CVT_SR_FP8_F32_e64_dpp8_gfx12 ||
+                        Opc == AMDGPU::V_CVT_SR_BF8_F32_e64_dpp_gfx12 ||
+                        Opc == AMDGPU::V_CVT_SR_FP8_F32_e64_dpp_gfx12;
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kosarev wrote:

These could be moved closer to where they are actually used?

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