Index: llvm/trunk/lib/Target/X86/AsmParser/X86AsmParser.cpp
===================================================================
--- llvm/trunk/lib/Target/X86/AsmParser/X86AsmParser.cpp
+++ llvm/trunk/lib/Target/X86/AsmParser/X86AsmParser.cpp
@@ -2536,7 +2536,7 @@
         (Name == "smov" || Name == "smovb" || Name == "smovw" ||
          Name == "smovl" || Name == "smovd" || Name == "smovq"))) &&
       (Operands.size() == 1 || Operands.size() == 3)) {
-    if (Name == "movsd" && Operands.size() == 1)
+    if (Name == "movsd" && Operands.size() == 1 && !isParsingIntelSyntax())
       Operands.back() = X86Operand::CreateToken("movsl", NameLoc);
     AddDefaultSrcDestOperands(TmpOperands, DefaultMemSIOperand(NameLoc),
                               DefaultMemDIOperand(NameLoc));
Index: llvm/trunk/test/MC/X86/intel-syntax.s
===================================================================
--- llvm/trunk/test/MC/X86/intel-syntax.s
+++ llvm/trunk/test/MC/X86/intel-syntax.s
@@ -77,6 +77,8 @@
     vpgatherdd XMM10, XMMWORD PTR [R15 + 2*XMM9], XMM8
 // CHECK: movsd -8, %xmm5
     movsd   XMM5, QWORD PTR [-8]
+// CHECK: movsl (%rsi), %es:(%rdi)
+    movsd
 // CHECK: movl %ecx, (%eax)
     mov [eax], ecx
 // CHECK: movl %ecx, (,%ebx,4)