[Bug tree-optimization/49772] [4.7 Regression] ICE: in ipa_pta_execute, at tree-ssa-structalias.c:6790 with -fipa-pta

[rguenther at suse dot de]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49772

--- Comment #11 from rguenther at suse dot de <rguenther at suse dot de> 2011-12-08 08:57:22 UTC ---
On Thu, 8 Dec 2011, pinskia at gcc dot gnu.org wrote:

> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49772
> 
> --- Comment #10 from Andrew Pinski <pinskia at gcc dot gnu.org> 2011-12-08 04:54:41 UTC ---
> A better non specific to tree-ssa-structaliasing patch:
> Index: cgraphunit.c
> ===================================================================
> --- cgraphunit.c        (revision 182098)
> +++ cgraphunit.c        (working copy)
> @@ -1817,6 +1817,9 @@ cgraph_expand_function (struct cgraph_no
>    /* Generate RTL for the body of DECL.  */
>    tree_rest_of_compilation (decl);
> 
> +  if (seen_error ())
> +    return;
> +
>    /* Make sure that BE didn't give up on compiling.  */
>    gcc_assert (TREE_ASM_WRITTEN (decl));
>    current_function_decl = NULL;
> Index: passes.c
> ===================================================================
> --- passes.c    (revision 182098)
> +++ passes.c    (working copy)
> @@ -2074,7 +2074,7 @@ execute_one_pass (struct opt_pass *pass)
>      timevar_push (pass->tv_id);
> 
>    /* Do it!  */
> -  if (pass->execute)
> +  if (pass->execute && !seen_error ())
>      {
>        todo_after = pass->execute ();
>        do_per_function (clear_last_verified, NULL);

We don't want late warnings in random functions to be suppressed
by earlier errors.