1 files changed, 30 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.target/arm/pr64818.c b/gcc/testsuite/gcc.target/arm/pr64818.c
new file mode 100644
index 00000000000..bddd8462c69
--- /dev/null
+++ b/gcc/testsuite/gcc.target/arm/pr64818.c
@@ -0,0 +1,30 @@
+/* { dg-do compile } */
+/* { dg-options "-O1" } */
+
+char temp[16];
+extern int foo1 (void);
+
+void foo (void)
+{
+  int i;
+  int len;
+
+  while (1)
+  {
+    len = foo1 ();
+    register int a asm ("r0") = 5;
+    register char *b asm ("r1") = temp;
+    register int c asm ("r2") = len;
+    asm volatile ("mov %[r0], %[r0]\n  mov %[r1], %[r1]\n  mov %[r2], %[r2]\n"
+		   : "+m"(*b)
+		   : [r0]"r"(a), [r1]"r"(b), [r2]"r"(c));
+
+    for (i = 0; i < len; i++)
+    {
+      if (temp[i] == 10)
+      return;
+    }
+  }
+}
+
+/* { dg-final { scan-assembler "\[\\t \]+mov\ r1,\ r1" } } */