emit a 0 byte instead of a noop if a function is empty on darwin.
"0" is nice and target independent.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94718 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/AsmPrinter/AsmPrinter.cpp b/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
index 68fd77c..e7a1286 100644
--- a/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
+++ b/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
@@ -376,10 +376,8 @@
   // If the function is empty and the object file uses .subsections_via_symbols,
   // then we need to emit *some* thing to the function body to prevent the
   // labels from collapsing together.
-  if (MAI->hasSubsectionsViaSymbols() && !HasAnyRealCode) {
-    // FIXME: EmitByte(0).
-    O << "\tnop\n";
-  }
+  if (MAI->hasSubsectionsViaSymbols() && !HasAnyRealCode)
+    OutStreamer.EmitIntValue(0, 1, 0/*addrspace*/);
   
   if (MAI->hasDotTypeDotSizeDirective())
     O << "\t.size\t" << *CurrentFnSym << ", .-" << *CurrentFnSym << '\n';