llvm-mc/Mach-O: Set .subsections_via_symbols flag properly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80144 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/MC/MCMachOStreamer.cpp b/lib/MC/MCMachOStreamer.cpp
index 4a88807..ef5a99f 100644
--- a/lib/MC/MCMachOStreamer.cpp
+++ b/lib/MC/MCMachOStreamer.cpp
@@ -159,7 +159,14 @@
 }
 
 void MCMachOStreamer::EmitAssemblerFlag(AssemblerFlag Flag) {
-  llvm_unreachable("FIXME: Not yet implemented!");
+  switch (Flag) {
+  default:
+    llvm_unreachable("FIXME: Not yet implemented!");
+
+  case SubsectionsViaSymbols:
+    Assembler.setSubsectionsViaSymbols(true);
+    break;
+  }
 }
 
 void MCMachOStreamer::EmitAssignment(MCSymbol *Symbol,