1 files changed, 31 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.target/i386/pr36753.c b/gcc/testsuite/gcc.target/i386/pr36753.c
new file mode 100644
index 000000000..2d43d42a0
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr36753.c
@@ -0,0 +1,31 @@
+/* { dg-options "-O2" } */
+/* { dg-do run } */
+
+#if defined __i386__
+#define REG "edi"
+#else
+#define REG "r14"
+#endif
+
+register unsigned long *ds asm(REG);
+
+extern void abort (void);
+
+__attribute__ ((noinline)) void
+test (void)
+{
+  *++ds = 31337;
+}
+
+int
+main ()
+{
+  unsigned long stack[2];
+  stack[0] = 0;
+  stack[1] = 0;
+  ds = stack;
+  test ();
+  if (ds != stack + 1 || *ds != 31337)
+    abort ();
+  return 0;
+}