1 files changed, 23 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.c-torture/execute/builtins/lib/memcmp.c b/gcc/testsuite/gcc.c-torture/execute/builtins/lib/memcmp.c
new file mode 100644
index 000000000..fd6556d22
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/builtins/lib/memcmp.c
@@ -0,0 +1,23 @@
+extern void abort(void);
+extern int inside_main;
+
+__attribute__ ((__noinline__))
+int
+memcmp (const void *s1, const void *s2, __SIZE_TYPE__ len)
+{
+  const unsigned char *sp1, *sp2;
+
+#ifdef __OPTIMIZE__
+  if (inside_main)
+    abort ();
+#endif
+
+  sp1 = s1;
+  sp2 = s2;
+  while (len != 0 && *sp1 == *sp2)
+    sp1++, sp2++, len--;
+
+  if (len == 0)
+    return 0;
+  return *sp1 - *sp2;
+}