Index: cfe/trunk/lib/Parse/ParseStmtAsm.cpp
===================================================================
--- cfe/trunk/lib/Parse/ParseStmtAsm.cpp
+++ cfe/trunk/lib/Parse/ParseStmtAsm.cpp
@@ -457,6 +457,11 @@
             break;
           LineNo = SrcMgr.getLineNumber(ExpLoc.first, ExpLoc.second);
           SkippedStartOfLine = Tok.isAtStartOfLine();
+        } else if (Tok.is(tok::semi)) {
+          // A multi-line asm-statement, where next line is a comment
+          InAsmComment = true;
+          FID = ExpLoc.first;
+          LineNo = SrcMgr.getLineNumber(FID, ExpLoc.second);
         }
       } else if (!InAsmComment && Tok.is(tok::r_brace)) {
         // In MSVC mode, braces only participate in brace matching and
Index: cfe/trunk/test/CodeGen/ms-inline-asm.c
===================================================================
--- cfe/trunk/test/CodeGen/ms-inline-asm.c
+++ cfe/trunk/test/CodeGen/ms-inline-asm.c
@@ -55,9 +55,15 @@
     }
   }
   __asm {}
+  __asm {
+    ;
+    ; label
+    mov eax, ebx
+  }
 // CHECK: t7
 // CHECK: call void asm sideeffect inteldialect "int $$0x2cU", "~{dirflag},~{fpsr},~{flags}"()
 // CHECK: call void asm sideeffect inteldialect "", "~{dirflag},~{fpsr},~{flags}"()
+// CHECK: call void asm sideeffect inteldialect "mov eax, ebx", "~{eax},~{dirflag},~{fpsr},~{flags}"()
 }
 
 int t8() {