Index: config/i386/i386.md
===================================================================
--- config/i386/i386.md	(revision 137276)
+++ config/i386/i386.md	(working copy)
@@ -2464,7 +2464,7 @@
 	      (const_string "TI")))])
 
 (define_insn "*movti_rex64"
-  [(set (match_operand:TI 0 "nonimmediate_operand" "=r,o,x,x,xm")
+  [(set (match_operand:TI 0 "nonimmediate_operand" "=!r,o,x,x,xm")
 	(match_operand:TI 1 "general_operand" "riFo,riF,C,xm,x"))]
   "TARGET_64BIT
    && !(MEM_P (operands[0]) && MEM_P (operands[1]))"
Index: testsuite/gcc.target/i386/movti.c
===================================================================
--- testsuite/gcc.target/i386/movti.c	(revision 0)
+++ testsuite/gcc.target/i386/movti.c	(revision 0)
@@ -0,0 +1,10 @@
+/* { dg-do compile } */
+/* { dg-require-effective-target dfp } */
+/* { dg-options "-O -std=gnu99" } */
+
+_Decimal128 test (void)
+{
+  return 1234123412341234.123412341234dl;
+}
+
+/* { dg-final { scan-assembler-not "movabs" } } */