From: Marc Glisse <marc.glisse@inria.fr>
To: Richard Biener <rguenther@suse.de>
Cc: gcc-patches@gcc.gnu.org
Subject: Re: [PATCH] Fix PR79547
Date: Fri, 17 Feb 2017 10:52:00 -0000 [thread overview]
Message-ID: <alpine.DEB.2.20.1702171131030.2176@stedding.saclay.inria.fr> (raw)
In-Reply-To: <alpine.LSU.2.20.1702171042390.8538@zhemvz.fhfr.qr>
On Fri, 17 Feb 2017, Richard Biener wrote:
> On Thu, 16 Feb 2017, Richard Biener wrote:
>
>>
>> I am testing the following patch for PR79547. Those builtins do not
>> return anything that can be used to re-construct the pointer(s) passed
>> to them.
>>
>> Queued for GCC 8.
>
> Actually we need calluse constraints. Thus adjusted as follows.
>
> Richard.
>
> 2017-02-17 Richard Biener <rguenther@suse.de>
>
> PR tree-optimization/79547
> * tree-ssa-structalias.c (find_func_aliases_for_builtin_call):
> Handle strlen, strcmp, strncmp, strcasecmp, strncasecmp, memcmp,
> bcmp, strspn, strcspn, __builtin_object_size and __builtin_constant_p
> without any constraints.
We have EAF_NOESCAPE that we are using for non-builtins, though it
probably gets little use there. Would it make sense to use it here as
well, or would that be pointless?
--
Marc Glisse
next prev parent reply other threads:[~2017-02-17 10:35 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-16 12:47 Richard Biener
2017-02-17 9:45 ` Richard Biener
2017-02-17 10:52 ` Marc Glisse [this message]
2017-02-17 11:32 ` Richard Biener
2017-04-21 13:08 ` Richard Biener
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