On Fri, May 2, 2014 at 8:18 AM, Jeff Law <l...@redhat.com> wrote:
> On 04/22/14 03:25, Eric Botcazou wrote:
>>>
>>> Sure, and thanks again for your help.
>>
>>
>> Thanks!
>>
>>> I was not able to find any difference on the generated code with
>>> or without that patch.
>>
>>
>> Yes, my gut feeling is that TYPE_ALIGN_OK is really obsolete now.  It is
>> set
>> in a single place in the compiler
>> (gcc-interface/decl.c:gnat_to_gnu_entity):
>>
>>        /* Tell the middle-end that objects of tagged types are guaranteed
>> to
>>          be properly aligned.  This is necessary because conversions to
>> the
>>          class-wide type are translated into conversions to the root type,
>>          which can be less aligned than some of its derived types.  */
>>        if (Is_Tagged_Type (gnat_entity)
>>           || Is_Class_Wide_Equivalent_Type (gnat_entity))
>>         TYPE_ALIGN_OK (gnu_type) = 1;
>>
>> but we changed the way these conversions are done some time ago.
>
> So does this remove the last concern around Bernd's patch?

And can we remove TYPE_ALIGN_OK as followup?  (ISTR it's used
by obj-c/c++ as well, but I can't find such use)

Thanks,
Richard.

> Jeff
>

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