[clang] [clang] Support -Wa, options -mmsa and -mno-msa (PR #99615)

[Fangrui Song via cfe-commits]

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@@ -2716,6 +2721,18 @@ static void CollectArgsForIntegratedAssembler(Compilation &C,
           << "-Wa,--crel" << D.getTargetTriple();
     }
   }
+  if (Msa) {
+    if (!Triple.isMIPS()) {
+      if (*Msa)
+        D.Diag(diag::err_drv_unsupported_opt_for_target)
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MaskRay wrote:

`D.Diag(diag::err_drv_unsupported_opt_for_target)` << (*Msa ? "-Wa,-mssa" : "-Wa,-mno-ssa") << D.getTargetTriple()`

https://github.com/llvm/llvm-project/pull/99615