diff --git a/include/llvm/MC/MCStreamer.h b/include/llvm/MC/MCStreamer.h
index 9cd615adeb8..7e3fe665402 100644
--- a/include/llvm/MC/MCStreamer.h
+++ b/include/llvm/MC/MCStreamer.h
@@ -274,7 +274,7 @@ namespace llvm {
     ///
     /// This is used to implement assembler directives such as .gprel32 on
     /// targets that support them.
-    virtual void EmitGPRel32Value(const MCExpr *Value) = 0;
+    virtual void EmitGPRel32Value(const MCExpr *Value);
 
     /// EmitFill - Emit NumBytes bytes worth of the value specified by
     /// FillValue.  This implements directives such as '.space'.
diff --git a/lib/MC/MCELFStreamer.cpp b/lib/MC/MCELFStreamer.cpp
index 5b707cb2189..2e0d85a1e2d 100644
--- a/lib/MC/MCELFStreamer.cpp
+++ b/lib/MC/MCELFStreamer.cpp
@@ -125,9 +125,6 @@ public:
   }
   virtual void EmitBytes(StringRef Data, unsigned AddrSpace);
   virtual void EmitValue(const MCExpr *Value, unsigned Size,unsigned AddrSpace);
-  virtual void EmitGPRel32Value(const MCExpr *Value) {
-    assert(0 && "ELF doesn't support this directive");
-  }
   virtual void EmitValueToAlignment(unsigned ByteAlignment, int64_t Value = 0,
                                     unsigned ValueSize = 1,
                                     unsigned MaxBytesToEmit = 0);
diff --git a/lib/MC/MCMachOStreamer.cpp b/lib/MC/MCMachOStreamer.cpp
index 39b1d4fd4ae..3f93604caaf 100644
--- a/lib/MC/MCMachOStreamer.cpp
+++ b/lib/MC/MCMachOStreamer.cpp
@@ -75,9 +75,6 @@ public:
                               uint64_t Size, unsigned ByteAlignment = 0);
   virtual void EmitBytes(StringRef Data, unsigned AddrSpace);
   virtual void EmitValue(const MCExpr *Value, unsigned Size,unsigned AddrSpace);
-  virtual void EmitGPRel32Value(const MCExpr *Value) {
-    assert(0 && "macho doesn't support this directive");
-  }
   virtual void EmitValueToAlignment(unsigned ByteAlignment, int64_t Value = 0,
                                     unsigned ValueSize = 1,
                                     unsigned MaxBytesToEmit = 0);
diff --git a/lib/MC/MCPureStreamer.cpp b/lib/MC/MCPureStreamer.cpp
index 2dfb389f092..ad365d981a3 100644
--- a/lib/MC/MCPureStreamer.cpp
+++ b/lib/MC/MCPureStreamer.cpp
@@ -91,9 +91,6 @@ public:
   virtual void EmitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size) {
     report_fatal_error("unsupported directive in pure streamer");
   }
-  virtual void EmitGPRel32Value(const MCExpr *Value) {
-    report_fatal_error("unsupported directive in pure streamer");
-  }
   virtual void EmitFileDirective(StringRef Filename) {
     report_fatal_error("unsupported directive in pure streamer");
   }
diff --git a/lib/MC/MCStreamer.cpp b/lib/MC/MCStreamer.cpp
index 69318ea3543..7921957f542 100644
--- a/lib/MC/MCStreamer.cpp
+++ b/lib/MC/MCStreamer.cpp
@@ -55,6 +55,10 @@ void MCStreamer::EmitSymbolValue(const MCSymbol *Sym, unsigned Size,
   EmitValue(MCSymbolRefExpr::Create(Sym, getContext()), Size, AddrSpace);
 }
 
+void MCStreamer::EmitGPRel32Value(const MCExpr *Value) {
+  report_fatal_error("unsupported directive in streamer");
+}
+
 /// 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,
diff --git a/lib/MC/WinCOFFStreamer.cpp b/lib/MC/WinCOFFStreamer.cpp
index 0f0224891d5..cba71882676 100644
--- a/lib/MC/WinCOFFStreamer.cpp
+++ b/lib/MC/WinCOFFStreamer.cpp
@@ -70,7 +70,6 @@ public:
   virtual void EmitBytes(StringRef Data, unsigned AddrSpace);
   virtual void EmitValue(const MCExpr *Value, unsigned Size,
                          unsigned AddrSpace);
-  virtual void EmitGPRel32Value(const MCExpr *Value);
   virtual void EmitValueToAlignment(unsigned ByteAlignment, int64_t Value,
                                    unsigned ValueSize, unsigned MaxBytesToEmit);
   virtual void EmitCodeAlignment(unsigned ByteAlignment,
@@ -368,10 +367,6 @@ void WinCOFFStreamer::EmitValue(const MCExpr *Value, unsigned Size,
   }
 }
 
-void WinCOFFStreamer::EmitGPRel32Value(const MCExpr *Value) {
-  llvm_unreachable("not implemented");
-}
-
 void WinCOFFStreamer::EmitValueToAlignment(unsigned ByteAlignment,
                                            int64_t Value,
                                            unsigned ValueSize,