1 files changed, 36 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.c-torture/execute/builtins/strchr.c b/gcc/testsuite/gcc.c-torture/execute/builtins/strchr.c
new file mode 100644
index 000000000..08e87c63d
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/builtins/strchr.c
@@ -0,0 +1,36 @@
+/* Copyright (C) 2000, 2003  Free Software Foundation.
+
+   Ensure all expected transformations of builtin strchr and index
+   occur and perform correctly.
+
+   Written by Jakub Jelinek, 11/7/2000.  */
+
+extern void abort (void);
+extern char *strchr (const char *, int);
+extern char *index (const char *, int);
+
+void
+main_test (void)
+{
+  const char *const foo = "hello world";
+
+  if (strchr (foo, 'x'))
+    abort ();
+  if (strchr (foo, 'o') != foo + 4)
+    abort ();
+  if (strchr (foo + 5, 'o') != foo + 7)
+    abort ();
+  if (strchr (foo, '\0')  != foo + 11)
+    abort ();
+  /* Test only one instance of index since the code path is the same
+     as that of strchr. */
+  if (index ("hello", 'z')  != 0)
+    abort ();
+
+  /* Test at least one instance of the __builtin_ style.  We do this
+     to ensure that it works and that the prototype is correct.  */
+  if (__builtin_strchr (foo, 'o')  != foo + 4)
+    abort ();
+  if (__builtin_index (foo, 'o')  != foo + 4)
+    abort ();
+}