[llvm] [AMDGPU] Correctly insert s_nops for dst forwarding hazard (PR #100276)

[Stanislav Mekhanoshin via llvm-commits]

================
@@ -2904,6 +2905,15 @@ def getVCMPXOpFromVCMP : InstrMapping {
   let ValueCols = [["1"]];
 }
 
+def FP8DstByteSelTable : GenericTable {
+  let FilterClass = "VOP3_Pseudo";
----------------
rampitec wrote:

In general the w/a is already guarded by the ST.hasDstSelForwardingHazard() check, which is limited to gfx940.

https://github.com/llvm/llvm-project/pull/100276