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Date: Thu, 14 Aug 2014 14:34:00 -0000
Message-ID: <CAFiYyc16RQqU8fKkpHB0myMKgandnjsArt+V7ur_o+pkVae1Og@mail.gmail.com>
Subject: Re: Fix if-conversion pass for dead type-unsafe code
From: Richard Biener <richard.guenther@gmail.com>
To: Tom de Vries <Tom_deVries@mentor.com>
Cc: Richard Biener <rguenther@suse.de>, Steven Bosscher <stevenb.gcc@gmail.com>, 	"gcc- >> GCC Patches" <gcc-patches@gcc.gnu.org>, Andrew Pinski <pinskia@gmail.com>
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On Sat, Aug 9, 2014 at 7:14 AM, Tom de Vries <Tom_deVries@mentor.com> wrote:
> On 08-08-14 17:17, Tom de Vries wrote:
>>>
>>> Maybe instead of a new mem_alias_equal_p simply compare MEM_ATTRs
>>> with mem_attrs_eq_p?
>>
>>
>> I propose to fix it this way (as attached) on 4.8/4.9/trunk, and maybe do
>> a more
>> efficient handling on trunk as a follow-up patch.
>>
>> I'll put this through bootstrap/test again.
>
>
> Bootstrapped and reg-tested on trunk x86_64.
>
> Re-attached patch OK for trunk, 4.8, 4.9 ?

Ok.  (did you check the effect on code-generation?  that is, how many
opportunities compiling GCC do we "lose"?)

Thanks,
Richard.

> Thanks,
> - Tom