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Message-ID: <260c79313587c9f4f8f9fc83f384f7845af48090.camel@mengyan1223.wang>
Subject: Re: [PATCH] vect: fix out-of-bound access in
 supports_vec_convert_optab_p [PR 104851]
From: Xi Ruoyao <xry111@mengyan1223.wang>
To: Richard Biener <richard.guenther@gmail.com>
Cc: GCC Patches <gcc-patches@gcc.gnu.org>, Richard Sandiford
 <richard.sandiford@arm.com>
Date: Wed, 09 Mar 2022 18:57:51 +0800
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On Wed, 2022-03-09 at 09:37 +0100, Richard Biener wrote:
> On Wed, Mar 9, 2022 at 5:06 AM Xi Ruoyao via Gcc-patches
> <gcc-patches@gcc.gnu.org> wrote:
> > 
> > This should be obvious, OK for trunk?
> 
> OK.

Committed r12-7559.

> > -- >8 --
> > 
> > Calling VECTOR_MODE_P with MAX_MACHINE_MODE has caused out-of-bound
> > access.

/* snip */

> > -  int end = mode == VOIDmode ? MAX_MACHINE_MODE : mode;
> > +  int end = mode == VOIDmode ? MAX_MACHINE_MODE - 1 : mode;

-- 
Xi Ruoyao <xry111@mengyan1223.wang>
School of Aerospace Science and Technology, Xidian University