[Bug tree-optimization/16437] New c-torture failures after bitfield patch

["dnovillo at redhat dot com" <gcc-bugzilla at gcc dot gnu dot org>]

------- Additional Comments From dnovillo at redhat dot com  2004-07-08 16:27 -------
Subject: Re:  New c-torture failures after
	bitfield patch

On Thu, 2004-07-08 at 11:57, jsm at polyomino dot org dot uk wrote:

> struct tmp
> {
>   long long int pad : 12;
>   long long int field : 52;
> };
> 
> main()
> {
>   struct tmp tmp = {0x123, 0xFFF000FFF000FLL};
> 
>   if (tmp.field != 0xFFFFFF000FFF000FLL)
>     abort();
> 
>   exit (0);
> }
> 
> from my previous message also fail now?  If so, that should speed up
> investigating this one.  If not, I'll start from the full bf64-1.c.
> 
This one works.  We don't fold the conditional into 'if (1)' like we do
in the full test.  Perhaps a good starting point is to set a breakpoint
in gimplify_cond_expr and follow the path into some call to fold().


Diego.



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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16437