Implements parsing and emitting of .cfi_window_save in MC.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191431 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/AsmPrinter/AsmPrinterDwarf.cpp b/lib/CodeGen/AsmPrinter/AsmPrinterDwarf.cpp
index c141d60..c48445f 100644
--- a/lib/CodeGen/AsmPrinter/AsmPrinterDwarf.cpp
+++ b/lib/CodeGen/AsmPrinter/AsmPrinterDwarf.cpp
@@ -185,5 +185,8 @@
   case MCCFIInstruction::OpOffset:
     OutStreamer.EmitCFIOffset(Inst.getRegister(), Inst.getOffset());
     break;
+  case MCCFIInstruction::OpWindowSave:
+    OutStreamer.EmitCFIWindowSave();
+    break;
   }
 }