diff --git a/lib/MC/MCStreamer.cpp b/lib/MC/MCStreamer.cpp
index 8f45360f49d..fad1425dd1d 100644
--- a/lib/MC/MCStreamer.cpp
+++ b/lib/MC/MCStreamer.cpp
@@ -571,7 +571,6 @@ void MCStreamer::EmitCOFFSectionIndex(MCSymbol const *Symbol) {
 }
 
 void MCStreamer::EmitCOFFSecRel32(MCSymbol const *Symbol) {
-  llvm_unreachable("This file format doesn't support this directive");
 }
 
 /// EmitRawText - If this file is backed by an assembly streamer, this dumps
diff --git a/test/CodeGen/X86/null-streamer.ll b/test/CodeGen/X86/null-streamer.ll
index 7c0e82f08f9..fa77fcb1d13 100644
--- a/test/CodeGen/X86/null-streamer.ll
+++ b/test/CodeGen/X86/null-streamer.ll
@@ -1,6 +1,7 @@
 ; Check the MCNullStreamer operates correctly, at least on a minimal test case.
 ;
 ; RUN: llc -filetype=null -o %t -march=x86 %s
+; RUN: llc -filetype=null -o %t -mtriple=i686-cygwin %s
 
 define void @f0()  {
   ret void
@@ -9,3 +10,20 @@ define void @f0()  {
 define void @f1() {
   ret void
 }
+
+!llvm.dbg.cu = !{!0}
+!llvm.module.flags = !{!11, !13}
+
+!0 = metadata !{i32 786449, metadata !1, i32 4, metadata !" ", i1 true, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !9, metadata !2, metadata !""}
+!1 = metadata !{metadata !"", metadata !""}
+!2 = metadata !{}
+!3 = metadata !{metadata !4}
+!4 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"", metadata !"", metadata !"", i32 2, metadata !6, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, i32 ()* null, null, null, metadata !2, i32 2}
+!5 = metadata !{i32 786473, metadata !1}
+!6 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !7, i32 0, null, null, null}
+!7 = metadata !{metadata !8}
+!8 = metadata !{i32 786468, null, null, metadata !"", i32 0, i64 32, i64 32, i64 0, i32 0, i32 5}
+!9 = metadata !{metadata !10}
+!10 = metadata !{i32 786484, i32 0, null, metadata !"i", metadata !"i", metadata !"_ZL1i", metadata !5, i32 1, metadata !8, i32 1, i32 1, null, null}
+!11 = metadata !{i32 2, metadata !"Dwarf Version", i32 3}
+!13 = metadata !{i32 1, metadata !"Debug Info Version", i32 1}