diff --git a/gcc/config/arm/iwmmxt.md b/gcc/config/arm/iwmmxt.md
index fda3c2c..d1a60ff 100644
--- a/gcc/config/arm/iwmmxt.md
+++ b/gcc/config/arm/iwmmxt.md
@@ -107,8 +107,8 @@
 )
 
 (define_insn "*iwmmxt_arm_movdi"
-  [(set (match_operand:DI 0 "nonimmediate_di_operand" "=r, r, r, r, m,y,y,yr,y,yrUy,*w, r,*w,*w, *Uv")
-        (match_operand:DI 1 "di_operand"              "rDa,Db,Dc,mi,r,y,yr,y,yrUy,y, r,*w,*w,*Uvi,*w"))]
+  [(set (match_operand:DI 0 "nonimmediate_di_operand" "=r, r, r, r, m,y,y,r, y,Uy,*w, r,*w,*w, *Uv")
+        (match_operand:DI 1 "di_operand"              "rDa,Db,Dc,mi,r,y,r,y,Uy,y,  r,*w,*w,*Uvi,*w"))]
   "TARGET_REALLY_IWMMXT
    && (   register_operand (operands[0], DImode)
        || register_operand (operands[1], DImode))"
diff --git a/gcc/testsuite/gcc.target/arm/pr64208.c b/gcc/testsuite/gcc.target/arm/pr64208.c
new file mode 100644
index 0000000..96fd56d
--- /dev/null
+++ b/gcc/testsuite/gcc.target/arm/pr64208.c
@@ -0,0 +1,25 @@
+/* { dg-do compile } */
+/* { dg-skip-if "Test is specific to the iWMMXt" { arm*-*-* } { "-mcpu=*" } { "-mcpu=iwmmxt" } } */
+/* { dg-skip-if "Test is specific to the iWMMXt" { arm*-*-* } { "-mabi=*" } { "-mabi=iwmmxt" } } */
+/* { dg-skip-if "Test is specific to the iWMMXt" { arm*-*-* } { "-march=*" } { "-march=iwmmxt" } } */
+/* { dg-skip-if "Test is specific to ARM mode" { arm*-*-* } { "-mthumb" } { "" } } */
+/* { dg-require-effective-target arm32 } */
+/* { dg-require-effective-target arm_iwmmxt_ok } */
+/* { dg-options "-O1 -mcpu=iwmmxt" } */
+
+long long x6(void);
+void x7(long long, long long);
+void x8(long long);
+
+int x0;
+long long *x1;
+
+void x2(void) {
+  long long *x3 = x1;
+  while (x1) {
+    long long x4 = x0, x5 = x6();
+    x7(x4, x5);
+    x8(x5);
+    *x3 = 0;
+  }
+}