Index: lib/Target/ARM/MCTargetDesc/ARMELFStreamer.cpp
===================================================================
--- lib/Target/ARM/MCTargetDesc/ARMELFStreamer.cpp
+++ lib/Target/ARM/MCTargetDesc/ARMELFStreamer.cpp
@@ -465,6 +465,11 @@
   void emitPad(int64_t Offset);
   void emitRegSave(const SmallVectorImpl<unsigned> &RegList, bool isVector);
   void emitUnwindRaw(int64_t Offset, const SmallVectorImpl<uint8_t> &Opcodes);
+  void emitFill(const MCExpr &NumBytes, uint64_t FillValue,
+                SMLoc Loc) override {
+    EmitDataMappingSymbol();
+    MCObjectStreamer::emitFill(NumBytes, FillValue, Loc);
+  }
 
   void ChangeSection(MCSection *Section, const MCExpr *Subsection) override {
     LastMappingSymbols[getCurrentSection().first] = std::move(LastEMSInfo);
Index: test/MC/ARM/CheckDataSymbol.s
===================================================================
--- /dev/null
+++ test/MC/ARM/CheckDataSymbol.s
@@ -0,0 +1,15 @@
+# RUN: llvm-mc -filetype=obj -assemble -arm-implicit-it=thumb \
+# RUN: -triple=arm-arm-none-eabi -mcpu=cortex-a9 %s -o - \
+# RUN: | llvm-readobj -s -t - | FileCheck %s
+# CHECK:     Name: $d.1 ({{[1-9][0-9]+}})
+# CHECK-NEXT:     Value: 0x4
+# CHECK-NEXT:     Size: 0
+# CHECK-NEXT:     Binding: Local (0x0)
+# CHECK-NEXT:     Type: None (0x0)
+# CHECK-NEXT:     Other: 0
+# CHECK-NEXT:     Section: .text (0x2)
+# CHECK-NEXT:   }
+
+.text
+nop
+.zero 4