1 files changed, 13 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/AsmPrinter/AsmPrinterDwarf.cpp b/llvm/lib/CodeGen/AsmPrinter/AsmPrinterDwarf.cpp
index 187148cddbe..7e694d05390 100644
--- a/llvm/lib/CodeGen/AsmPrinter/AsmPrinterDwarf.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/AsmPrinterDwarf.cpp
@@ -16,6 +16,7 @@
 #include "llvm/MC/MCAsmInfo.h"
 #include "llvm/MC/MCStreamer.h"
 #include "llvm/ADT/Twine.h"
+#include "llvm/Support/Dwarf.h"
 using namespace llvm;
 
 /// EmitSLEB128 - emit the specified signed leb128 value.
@@ -69,3 +70,15 @@ void AsmPrinter::EmitULEB128(unsigned Value, const char *Desc,
   }
 }
 
+/// EmitCFAByte - Emit a .byte 42 directive for a DW_CFA_xxx value.
+void AsmPrinter::EmitCFAByte(unsigned Val) const {
+  if (isVerbose()) {
+    if (Val >= dwarf::DW_CFA_offset && Val < dwarf::DW_CFA_offset+64)
+      OutStreamer.AddComment("DW_CFA_offset + Reg (" + 
+                             Twine(Val-dwarf::DW_CFA_offset) + ")");
+    else
+      OutStreamer.AddComment(dwarf::CallFrameString(Val));
+  }
+  OutStreamer.EmitIntValue(Val, 1, 0/*addrspace*/);
+}
+