>
>    http://gcc.gnu.org/ml/gcc-patches/2006-03/msg00167.html

This patch looks wrong to me.  I don't understand how it could be
correct in the presence of __attribute__ ((aligned (N))).  It checks
TYPE_PACKED but not TYPE_ALIGN or TYPE_USER_ALIGN.  The default hook
assumes that objects larger than pointers are not naturally aligned,
which does not make sense to me: given a type, we know the alignment,
and we should use that.

This patch for the cases when alignment is *not known* at
compile time.

is_packed is for targets that support various alignment rules for packed
structs.

See
 http://gcc.gnu.org/ml/gcc/2005-12/msg00390.html
for more discussion on this topic.

-
Devang

I don't know whether this is still a problem.  If it is, I hope the
IBM Haifa folks will look at the test cases.

Thanks for pointing out the patch.

:REVIEWURL http://gcc.gnu.org/ml/gcc-patches/2006-03/msg00167.html:

Ian

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