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From: "siddhesh at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug ipa/96503] attribute alloc_size effect lost after inlining
Date: Wed, 25 Oct 2023 11:08:01 +0000	[thread overview]
Message-ID: <bug-96503-4-6uEWv4Pbbt@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-96503-4@http.gcc.gnu.org/bugzilla/>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96503

--- Comment #6 from Siddhesh Poyarekar <siddhesh at gcc dot gnu.org> ---
So basically,

  __builtin_with_access(void *ptr, size_t size, int access)

where access ==

-1: Unknown access semantics
0: none
1: read_only
2: write_only
3: read_write

should address both access and alloc_size and even counted_by.  We would need
to emit the builtin in the caller as well as callee of the function that has
the access attribute while for alloc_size, we only need to emit this in the
caller.

  parent reply	other threads:[~2023-10-25 11:08 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-06 15:51 [Bug ipa/96503] New: " msebor at gcc dot gnu.org
2022-09-30  1:54 ` [Bug ipa/96503] " kees at outflux dot net
2022-11-18 23:57 ` pageexec at gmail dot com
2023-10-25  5:46 ` muecker at gwdg dot de
2023-10-25  5:54 ` sjames at gcc dot gnu.org
2023-10-25 10:55 ` siddhesh at gcc dot gnu.org
2023-10-25 11:08 ` siddhesh at gcc dot gnu.org [this message]
2023-10-25 13:03 ` muecker at gwdg dot de
2023-10-25 13:40 ` siddhesh at gcc dot gnu.org
2023-11-03 19:04 ` uecker at gcc dot gnu.org

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