[llvm] [Exegesis][RISCV] Add RISCV support for llvm-exegesis (PR #89047)

[via llvm-commits]

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@@ -509,7 +509,7 @@ class BranchCC_rri<bits<3> funct3, string opcodestr>
   let isTerminator = 1;
 }
 
-let hasSideEffects = 0, mayLoad = 1, mayStore = 0 in {
+let hasSideEffects = 0, mayLoad = 1, mayStore = 0, UseNamedOperandTable = 1 in {
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AnastasiyaChernikova wrote:

'UseNamedOperandTable = 1' builds a table that's used to find instruction operand by its name in td

https://github.com/llvm/llvm-project/pull/89047