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From: "Diego Novillo" <dnovillo@google.com>
To: "Ian Lance Taylor" <iant@google.com>
Cc: "Godmar Back" <godmar@gmail.com>, gcc-help@gcc.gnu.org
Subject: Re: optimization of switch statements on i386
Date: Mon, 11 Feb 2008 18:47:00 -0000	[thread overview]
Message-ID: <b798aad50802111047n59175822ha2ade5ff2d9ff532@mail.gmail.com> (raw)
In-Reply-To: <m34pcftm44.fsf@localhost.localdomain>

On 11 Feb 2008 09:54:19 -0800, Ian Lance Taylor <iant@google.com> wrote:

>  gcc_unreachable means nothing special to gcc.

But it does have control-flow connotations.  The function ultimately
expands into fancy_abort, which is marked noreturn. We do use that
fact in the optimizer.


Diego.

  parent reply	other threads:[~2008-02-11 18:47 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <719dced30802081629g19f67f6fi76dfaa0ede35b7aa@mail.gmail.com>
2008-02-09  0:31 ` Godmar Back
2008-02-09  2:05   ` Ian Lance Taylor
2008-02-09  2:43     ` Godmar Back
2008-02-09  2:52       ` Ian Lance Taylor
2008-02-09  3:02     ` Godmar Back
2008-02-11 17:55       ` Ian Lance Taylor
2008-02-11 18:13         ` Godmar Back
2008-02-11 19:31           ` Ian Lance Taylor
2008-02-11 18:47         ` Diego Novillo [this message]
2008-02-11 19:52           ` Godmar Back
2008-02-11 20:01             ` Ian Lance Taylor

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