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[Bug middle-end/35705] [4.3/4.4 Regression] Symbol address check eliminated by C frontend.
- From: "rguenther at suse dot de" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 26 Mar 2008 22:57:15 -0000
- Subject: [Bug middle-end/35705] [4.3/4.4 Regression] Symbol address check eliminated by C frontend.
- References: <bug-35705-11932@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #10 from rguenther at suse dot de 2008-03-26 22:57 -------
Subject: Re: [4.3/4.4 Regression] Symbol address check
eliminated by C frontend.
On Wed, 26 Mar 2008, dave at hiauly1 dot hia dot nrc dot ca wrote:
> ------- Comment #9 from dave at hiauly1 dot hia dot nrc dot ca 2008-03-26 22:55 -------
> Subject: Re: [4.3/4.4 Regression] Symbol address check eliminated by C
> frontend.
>
> > so I suppose you want to disable this optimization for addresses of functions.
>
> Something like the following?
Yes.
Richard.
> Index: fold-const.c
> ===================================================================
> --- fold-const.c (revision 133621)
> +++ fold-const.c (working copy)
> @@ -9065,7 +9065,7 @@
> }
> }
>
> - if (DECL_P (expr))
> + if (DECL_P (expr) && TREE_CODE (expr) != FUNCTION_DECL)
> return DECL_ALIGN_UNIT (expr);
> }
> else if (code == POINTER_PLUS_EXPR)
>
> Dave
>
>
>
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35705