1 files changed, 49 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.c-torture/execute/builtins/strrchr.c b/gcc/testsuite/gcc.c-torture/execute/builtins/strrchr.c
new file mode 100644
index 000000000..3cc8faa2e
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/builtins/strrchr.c
@@ -0,0 +1,49 @@
+/* Copyright (C) 2000, 2003, 2004  Free Software Foundation.
+
+   Ensure all expected transformations of builtin strrchr and rindex
+   occur and perform correctly.
+
+   Written by Jakub Jelinek, 11/7/2000.  */
+
+extern void abort (void);
+extern char *strrchr (const char *, int);
+extern char *rindex (const char *, int);
+
+char *bar = "hi world";
+int x = 7;
+
+void
+main_test (void)
+{
+  const char *const foo = "hello world";
+
+  if (strrchr (foo, 'x'))
+    abort ();
+  if (strrchr (foo, 'o') != foo + 7)
+    abort ();
+  if (strrchr (foo, 'e') != foo + 1)
+    abort ();
+  if (strrchr (foo + 3, 'e'))
+    abort ();
+  if (strrchr (foo, '\0') != foo + 11)
+    abort ();
+  if (strrchr (bar, '\0') != bar + 8)
+    abort ();
+  if (strrchr (bar + 4, '\0') != bar + 8)
+    abort ();
+  if (strrchr (bar + (x++ & 3), '\0') != bar + 8)
+    abort ();
+  if (x != 8)
+    abort ();
+  /* Test only one instance of rindex since the code path is the same
+     as that of strrchr. */
+  if (rindex ("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_strrchr (foo, 'o') != foo + 7)
+    abort ();
+  if (__builtin_rindex (foo, 'o') != foo + 7)
+    abort ();
+}