diff --git a/lib/MC/MCStreamer.cpp b/lib/MC/MCStreamer.cpp
index 8a6dcda..e43d941 100644
--- a/lib/MC/MCStreamer.cpp
+++ b/lib/MC/MCStreamer.cpp
@@ -8,6 +8,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/MC/MCStreamer.h"
+#include "llvm/MC/MCExpr.h"
 
 using namespace llvm;
 
@@ -16,3 +17,11 @@
 
 MCStreamer::~MCStreamer() {
 }
+
+/// EmitFill - Emit NumBytes bytes worth of the value specified by
+/// FillValue.  This implements directives such as '.space'.
+void MCStreamer::EmitFill(uint64_t NumBytes, uint8_t FillValue) {
+  const MCExpr *E = MCConstantExpr::Create(FillValue, getContext());
+  for (uint64_t i = 0, e = NumBytes; i != e; ++i)
+    EmitValue(E, 1);
+}