Re: [PATCH 4/6] Shrink-wrapping

[Jeff Law <law at redhat dot com>]

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On 07/07/11 11:05, Paul Koning wrote:
> 
> On Jul 7, 2011, at 1:00 PM, Jeff Law wrote:
> 
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>> 
>> 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?
Yup.

Jeff
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