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Re: Add st[pr]ncpy to stmt_kills_ref_p

From: Marc Glisse <marc dot glisse at inria dot fr>
To: Martin Sebor <msebor at gmail dot com>
Cc: gcc-patches at gcc dot gnu dot org
Date: Sun, 30 Apr 2017 19:59:20 +0200 (CEST)
Subject: Re: Add st[pr]ncpy to stmt_kills_ref_p
Authentication-results: sourceware.org; auth=none
References: <alpine.DEB.2.02.1704290907370.10028@stedding.saclay.inria.fr> <0544dd2e-4dc3-ce8d-2b86-c1a73474d0dc@gmail.com>

On Sun, 30 Apr 2017, Martin Sebor wrote:

On 04/29/2017 01:17 AM, Marc Glisse wrote:

Hello,

this patch seems rather trivial, once one knows that those functions
always write exactly n characters (they fill with 0 as needed at the end).


Nice!  Now it just needs to be made to work the other way around
too, so the dead str{,n}cpy calls is eliminated:

I think I've seen related patches on the list, Prathamesh Kulkarni seemsto be working on it.


--
Marc Glisse

References:
- Add st[pr]ncpy to stmt_kills_ref_p
  - From: Marc Glisse
- Re: Add st[pr]ncpy to stmt_kills_ref_p
  - From: Martin Sebor

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