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From: "glisse at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug bootstrap/62005] [4.10 regression] with --enable-checking=rtl : loop-unroll.c:2095:10: error: function may return address of local variable
Date: Mon, 04 Aug 2014 18:55:00 -0000	[thread overview]
Message-ID: <bug-62005-4-dMzmaydNvB@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-62005-4@http.gcc.gnu.org/bugzilla/>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62005

--- Comment #4 from Marc Glisse <glisse at gcc dot gnu.org> ---
(In reply to Jakub Jelinek from comment #3)
> That said, an interesting question is why we don't warn about this without
> rtl checking, the function still returns address of the parameter.  Is that
> because it is inlined in that case and so we don't warn then?

That seems likely, RTL checking may make the function large enough not to be
inlined. Compiling without RTL checking but with -fkeep-inline-functions
probably warns as well then.


  parent reply	other threads:[~2014-08-04 18:55 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-08-04  9:13 [Bug bootstrap/62005] New: " dimhen at gmail dot com
2014-08-04  9:53 ` [Bug bootstrap/62005] " rguenth at gcc dot gnu.org
2014-08-04 10:24 ` glisse at gcc dot gnu.org
2014-08-04 18:47 ` jakub at gcc dot gnu.org
2014-08-04 18:55 ` glisse at gcc dot gnu.org [this message]
2014-08-04 20:12 ` glisse at gcc dot gnu.org
2014-08-05  9:08 ` jakub at gcc dot gnu.org

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