[llvm] [DirectX][NFC] Model precise overload type specification of DXIL Ops (PR #83917)

[Justin Bogner via llvm-commits]

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@@ -219,6 +269,20 @@ static std::string getOverloadKindStr(MVT::SimpleValueType VT) {
     return "OverloadKind::I16 | OverloadKind::I32 | OverloadKind::I64";
   case MVT::fAny:
     return "OverloadKind::HALF | OverloadKind::FLOAT | OverloadKind::DOUBLE";
+  case MVT::Other:
+    // Handle DXIL-specific overload types
+    {
+      auto RetStr =
+          StringSwitch<std::string>(R->getNameInitAsString())
+              .Case("llvm_i16ori32_ty", "OverloadKind::I16 | OverloadKind::I32")
+              .Case("llvm_halforfloat_ty",
+                    "OverloadKind::HALF | OverloadKind::FLOAT")
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bogner wrote:

Hm, I'm not sure that really worked out that well. We're still switching over the names in "getParameterKind" so we haven't really improved the abstraction, and the if chain over the known set of bools is probably just as error prone.

https://github.com/llvm/llvm-project/pull/83917