1 files changed, 54 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.target/i386/pr57003.c b/gcc/testsuite/gcc.target/i386/pr57003.c
new file mode 100644
index 0000000..dfa6b8b
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr57003.c
@@ -0,0 +1,54 @@
+/* PR rtl-optimization/57003 */
+/* { dg-do run } */
+/* { dg-options "-O2" } */
+
+#define N 2001
+unsigned short *b, *c, *d;
+
+__attribute__ ((noinline, noclone)) unsigned
+bar (void)
+{
+  asm volatile ("" : : : "memory");
+  return N;
+}
+
+__attribute__ ((noinline, noclone)) unsigned short *
+baz (unsigned long x)
+{
+  if (x != N * sizeof (unsigned short) + 20)
+    __builtin_abort ();
+  asm volatile ("" : : : "memory");
+  return d;
+}
+
+__attribute__ ((ms_abi, noinline, noclone))
+foo (void)
+{
+  unsigned d;
+  unsigned short *e;
+  if ((d = bar ()))
+    {
+      e = baz (d * sizeof (unsigned short) + 20);
+      __builtin_memcpy (e, b, d * sizeof (unsigned short));
+      c = e;
+    }
+}
+
+int
+main ()
+{
+  unsigned short a[2 * N];
+  int i;
+  for (i = 0; i < 2 * N; i++)
+    a[i] = i + 1;
+  b = a;
+  d = a + N;
+  asm volatile ("" : : : "memory");
+  foo ();
+  for (i = 0; i < N; i++)
+    if (a[i] != i + 1 || a[i + N] != i + 1)
+      __builtin_abort ();
+  if (c != a + N)
+    __builtin_abort ();
+  return 0;
+}