1 files changed, 64 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.c-torture/execute/memcpy-2.c b/gcc/testsuite/gcc.c-torture/execute/memcpy-2.c
new file mode 100644
index 00000000000..7832bf81ad7
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/memcpy-2.c
@@ -0,0 +1,64 @@
+/* Copyright (C) 2002  Free Software Foundation.
+
+   Test memcpy with various combinations of pointer alignments and lengths to
+   make sure any optimizations in the library are correct.
+
+   Written by Michael Meissner, March 9, 2002.  */
+
+#include <string.h>
+
+#ifndef MAX_OFFSET
+#define MAX_OFFSET (sizeof (long long))
+#endif
+
+#ifndef MAX_COPY
+#define MAX_COPY (8 * sizeof (long long))
+#endif
+
+#ifndef MAX_EXTRA
+#define MAX_EXTRA (sizeof (long long))
+#endif
+
+#define MAX_LENGTH (MAX_OFFSET + MAX_COPY + MAX_EXTRA)
+
+static union {
+  char buf[MAX_LENGTH];
+  long long align_int;
+  long double align_fp;
+} u1, u2;
+
+main ()
+{
+  int off1, off2, len, i;
+  char *p, *q;
+
+  for (off1 = 0; off1 < MAX_OFFSET; off1++)
+    for (off2 = 0; off2 < MAX_OFFSET; off2++)
+      for (len = 1; len < MAX_COPY; len++)
+	{
+	  for (i = 0; i < MAX_LENGTH; i++)
+	    {
+	      u1.buf[i] = 'a';
+	      u2.buf[i] = 'A';
+	    }
+
+	  p = memcpy (u1.buf + off1, u2.buf + off2, len);
+	  if (p != u1.buf + off1)
+	    abort ();
+
+	  q = u1.buf;
+	  for (i = 0; i < off1; i++, q++)
+	    if (*q != 'a')
+	      abort ();
+
+	  for (i = 0; i < len; i++, q++)
+	    if (*q != 'A')
+	      abort ();
+
+	  for (i = 0; i < MAX_EXTRA; i++, q++)
+	    if (*q != 'a')
+	      abort ();
+	}
+
+  exit (0);
+}