[llvm] [DXIL] Model DXIL Class and Shader Model association of DXIL Ops in DXIL.td (PR #87803)

[Damyan Pepper via llvm-commits]

================
@@ -72,10 +73,26 @@ static SmallVector<Value *> argVectorFlatten(CallInst *Orig,
   return NewOperands;
 }
 
+static uint32_t getShaderModelVer(Module &M) {
+  std::string TTStr = M.getTargetTriple();
+  std::string Error;
+  auto Target = TargetRegistry::lookupTarget(TTStr, Error);
+  if (!Target) {
+    if (TTStr.empty()) {
+      report_fatal_error(StringRef(Error), /*gen_crash_diag*/ false);
+    }
+  }
+  auto Major = Triple(TTStr).getOSVersion().getMajor();
+  auto MinorOrErr = Triple(TTStr).getOSVersion().getMinor();
+  uint32_t Minor = MinorOrErr.has_value() ? *MinorOrErr : 0;
+  return ((Major * 10) + Minor);
----------------
damyanp wrote:

Noting another place where it assumes that Minor < 10.

https://github.com/llvm/llvm-project/pull/87803