[llvm] [DirectX] Simplify DXIL_OP_INTRINSIC_MAP tablegen'ed code (PR #101248)

[Damyan Pepper via llvm-commits]

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@@ -653,12 +641,18 @@ static void EmitDXILOperation(RecordKeeper &Records, raw_ostream &OS) {
   for (auto *Record : OpIntrProps) {
     DXILOps.emplace_back(DXILOperationDesc(Record));
   }
+  // Sort by opcode.
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damyanp wrote:

Wondering if there's anything in place to catch duplicate entries?  Previously I think these would have been quietly swallowed? Now we'd probably get an error in the switch statement.  It'd probably be nicer to catch these while running tablegen rather than later?

https://github.com/llvm/llvm-project/pull/101248