Re: Warning: Immediates 21 and 32 will give undefined behavior.

[Frans Pop <elendil@planet.nl>]

On Friday 31 July 2009, Carlos O'Donell wrote:
> On Fri, Jul 31, 2009, John David Anglin<dave@hiauly1.hia.nrc.ca> wrote:
> >> > GCC loads various constants with depwi and depdi. The deposit
> >> > length was wrong.
> >
> > No, the bug is present in all released versions of gcc.  They need
> > to build a snapshot from the current GCC svn tree (4.3, 4.4 or
> > trunk), or apply the patch to their own source.
> >
> > 2009-07-20  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
> >        * pa.c (compute_zdepwi_operands): Limit deposit length to 32 -
> > lsb. Cast "1" to unsigned HOST_WIDE_INT.
> >        (compute_zdepdi_operands): Limit maximum length to 64 bits.
> >  Limit deposit length to the maximum length - lsb.  Extend length if
> > HOST_BITS_PER_WIDE_INT is 32.
>
> Would you mind filing a bug against debian gcc to have them pickup
> this patch for hppa?

Done: http://bugs.debian.org/539470

Cheers,
FJP