[clang] [flang] [mlir] [flang] Add basic -mtune support (PR #95043)

[Alexis Perry-Holby via cfe-commits]

================
@@ -371,7 +371,7 @@ static mlir::LogicalResult convertFortranSourceToMLIR(
       ctx, semanticsContext, defKinds, semanticsContext.intrinsics(),
       semanticsContext.targetCharacteristics(), parsing.allCooked(),
       targetTriple, kindMap, loweringOptions, envDefaults,
-      semanticsContext.languageFeatures(), targetMachine);
+      semanticsContext.languageFeatures(), targetMachine, ""); // FIXME
----------------
AlexisPerry wrote:

Thank you for catching that.  I meant to remove that comment as the thing it was referring to has been fixed.  I'll clean it up now.

https://github.com/llvm/llvm-project/pull/95043