Re: [PATCH] Fix ICEs in expand_builtin_expect (PR middle-end/31959)

["Andrew Pinski" <pinskia at gmail dot com>]

> --- gcc/testsuite/gcc.dg/pr31959-1.c.jj 2007-06-19 18:44:16.000000000 +0200
> +++ gcc/testsuite/gcc.dg/pr31959-1.c    2007-06-19 18:49:57.000000000 +0200
> @@ -0,0 +1,26 @@
> +/* PR middle-end/31959 */
> +/* { dg-do compile } */
> +/* { dg-options "-Werror -O2" } */
> +/* { dg-message "warnings being treated as errors" "" {target "*-*-*"} 0 } */
> +
> +struct A { int i; };
> +
> +static inline struct A *
> +baz (struct A *x)
> +{
> +  return x;
> +}
> +static inline struct A *
> +bar (const struct A *x)
> +{
> +  return baz ((struct A *) x); /* { dg-error "discards qualifiers" } */
> +}
> +
> +void *
> +foo (struct A *x, int y)
> +{
> +  void *p = (void *) 0;
> +  if (__builtin_expect (y >= 6, 0))
> +    p = bar (x);
> +  return p;
> +}

This testcase really should not, produce a warning/error at all.
Please see PR 29478 about that issue.

Thanks,
Andrew Pinski