[llvm] Add extended mnemonics (PR #97571)

[Dominik Steenken via llvm-commits]

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@@ -363,7 +363,7 @@ class InstRIEe<bits<16> op, dag outs, dag ins, string asmstr, list<dag> pattern>
   let Inst{7-0}   = op{7-0};
 }
 
-class InstRIEf<bits<16> op, dag outs, dag ins, string asmstr, list<dag> pattern>
+class InstRIEf<bits<16> op, dag outs, dag ins, string asmstr, list<dag> pattern, bits<8> I3Or = 0, bits<8> I4Or = 0>
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dominik-steenken wrote:

I split the line, similar to how it is done in the handful of other formats with extra parms.

https://github.com/llvm/llvm-project/pull/97571