diff --git a/lib/MC/MCParser/AsmParser.cpp b/lib/MC/MCParser/AsmParser.cpp
index 68889cb2053..9becb403d57 100644
--- a/lib/MC/MCParser/AsmParser.cpp
+++ b/lib/MC/MCParser/AsmParser.cpp
@@ -1595,14 +1595,18 @@ bool AsmParser::parseStatement(ParseStatementInfo &Info,
   // directive for the instruction.
   if (!HadError && getContext().getGenDwarfForAssembly() &&
       getContext().getGenDwarfSectionSyms().count(
-        getStreamer().getCurrentSection().first)) {
-
-    unsigned Line = SrcMgr.FindLineNumber(IDLoc, CurBuffer);
+          getStreamer().getCurrentSection().first)) {
+    unsigned Line;
+    if (ActiveMacros.empty())
+      Line = SrcMgr.FindLineNumber(IDLoc, CurBuffer);
+    else
+      Line = SrcMgr.FindLineNumber(ActiveMacros.back()->InstantiationLoc,
+                                   ActiveMacros.back()->ExitBuffer);
 
     // If we previously parsed a cpp hash file line comment then make sure the
     // current Dwarf File is for the CppHashFilename if not then emit the
     // Dwarf File table for it and adjust the line number for the .loc.
-    if (CppHashFilename.size() != 0) {
+    if (CppHashFilename.size()) {
       unsigned FileNumber = getStreamer().EmitDwarfFileDirective(
           0, StringRef(), CppHashFilename);
       getContext().setGenDwarfFileNumber(FileNumber);
diff --git a/test/DebugInfo/X86/asm-macro-line-number.s b/test/DebugInfo/X86/asm-macro-line-number.s
new file mode 100644
index 00000000000..0f51dbb6440
--- /dev/null
+++ b/test/DebugInfo/X86/asm-macro-line-number.s
@@ -0,0 +1,20 @@
+# RUN: llvm-mc -g -triple i686-linux-gnu -filetype asm -o - %s | FileCheck %s
+
+# 1 "reduced.S"
+# 1 "<built-in>" 1
+# 1 "reduced.S" 2
+
+ .macro return arg
+  movl %eax, \arg
+  retl
+ .endm
+
+function:
+ return 0
+
+# CHECK: .file 2 "reduced.S"
+# CHECK: .loc 2 8 0
+# CHECK: movl %eax, 0
+# CHECK: .loc 2 8 0
+# CHECK: retl
+