On Jul 7, 2011, at 1:00 PM, Jeff Law wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> On 07/07/11 10:58, Paul Koning wrote:
>>
>> On Jul 7, 2011, at 11:38 AM, Bernd Schmidt wrote:
>>
>>> ...
>>>
>>>> It'd also be nice to get rid of all these big blocks of code that are
>>>> conditional on preprocessor macros, but I realise you're just following
>>>> existing practice in the surrounding code, so again it can be left to
>>>> a future cleanup.
>>>
>>> Yeah, this function is quite horrid - so many different paths through it.
>>>
>>> However, it looks like the only target without HAVE_prologue is actually
>>> pdp11, so we're carrying some unnecessary baggage for purely
>>> retrocomputing purposes. Paul, can you fix that?
>>
>> Sure, but... I searched for HAVE_prologue and I can't find any place that
>> set it. There are tests for it, but I see nothing that defines it (other
>> than df-scan.c which defines it as zero if it's not defined, not sure what
>> the point of that is).
>>
>> I must be missing something...
> Isn't it defined by the insn-foo generators based on the existence of a
> prologue/epilogue insn in the MD file?
Thanks, that must be what I was missing. So someone is generating HAVE_%s, and
that's why grep didn't find HAVE_prologue?
>From a note by Richard Henderson (June 30, 2011) it sounds like rs6000 is the
>other platform that still generates asm prologues. But yes, I said I would do
>this. It sounds like doing it soon would help Bernd a lot. Let me try to
>accelerate it.
paul
