Add regression tests to check whether GCC folds unsafe builtins and

actually shows the security warning.  Also add some other cases
where GCC used to yield the warning but shouldn't (e.g. strncat
simplified into strcat).

1 files changed, 13 insertions, 0 deletions

diff --git a/regress/gnu/egcs/gcc-builtins/stpcpy-1.c b/regress/gnu/egcs/gcc-builtins/stpcpy-1.c
new file mode 100644
index 00000000000..d9506280903
--- /dev/null
+++ b/regress/gnu/egcs/gcc-builtins/stpcpy-1.c
@@ -0,0 +1,13 @@
+#include <string.h>
+
+int
+main(int argc, char **argv)
+{
+	char buf[512];
+	volatile char *rv;
+
+	/* This expression cannot be folded. */
+	rv = stpcpy(buf, argv[0]);
+
+	return (1);
+}