[llvm] [SystemZ] Handle indirect symbols (PR #180815)

[Ulrich Weigand via llvm-commits]

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@@ -355,9 +371,12 @@ void SystemZHLASMAsmStreamer::finishImpl() {
     auto &Sym = static_cast<MCSymbolGOFF &>(const_cast<MCSymbol &>(Symbol));
     OS << " " << (Sym.isWeak() ? "WXTRN" : "EXTRN") << " " << Sym.getName();
     EmitEOL();
-    emitXATTR(OS, Sym.getName(), Sym.getLinkage(), Sym.getCodeData(),
-              Sym.getBindingScope());
-    EmitEOL();
+    emitXATTR(OS, Sym.getName(), Sym.isIndirect(), Sym.getLinkage(),
+              Sym.getCodeData(), Sym.getBindingScope());
+    if (Sym.hasExternalName()) {
+      OS << Sym.getName() << " ALIAS \"" << Sym.getExternalName() << "\"\n";
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uweigand wrote:

Here we also print a newline just before calling `EmitEOL` - does this make sense?

https://github.com/llvm/llvm-project/pull/180815