From: Christopher Li <sparse@chrisli.org>
To: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>,
Linux-Sparse <linux-sparse@vger.kernel.org>
Subject: Re: [PATCH v2 4/5] simplify '(x / -1)' to '-x' (but only for signed division)
Date: Wed, 8 Feb 2017 04:33:30 +0800 [thread overview]
Message-ID: <CANeU7Q=67iWdgssXLEQyX0Saoe8iCf17jDCh7PWwwpeAuEhVAQ@mail.gmail.com> (raw)
In-Reply-To: <20170207202805.vtpnn3w5nyt4xwp7@macpro.local>
On Wed, Feb 8, 2017 at 4:28 AM, Luc Van Oostenryck
<luc.vanoostenryck@gmail.com> wrote:
>
>> Also, shouldn't you also add a test that
>> when a is unsigned, a/-1 does _not_ get transformed to -a?
> Hummm , yes but ... well, I'll see what I can do.
Let me know if there is a V3 coming then.
Chris
next prev parent reply other threads:[~2017-02-07 20:40 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-07 15:46 [PATCH 0/5] more simplification of constant multiplicative ops Luc Van Oostenryck
2016-12-07 15:46 ` [PATCH 1/5] move OP_MUL simplification in a separate function Luc Van Oostenryck
2016-12-07 15:46 ` [PATCH 2/5] simplify '(x / 1)' to 'x' Luc Van Oostenryck
2017-02-07 2:53 ` Christopher Li
2017-02-07 14:52 ` Luc Van Oostenryck
2017-02-07 18:29 ` Christopher Li
2017-02-07 19:00 ` [PATCH v2 0/5] more simplification of constant multiplicative ops Luc Van Oostenryck
2017-02-07 19:00 ` [PATCH v2 1/5] move OP_MUL simplification in a separate function Luc Van Oostenryck
2017-02-07 19:00 ` [PATCH v2 2/5] simplify '(x / 1)' to 'x' Luc Van Oostenryck
2017-02-07 19:00 ` [PATCH v2 3/5] simplify '(x * -1)' to '-x' Luc Van Oostenryck
2017-02-07 19:00 ` [PATCH v2 4/5] simplify '(x / -1)' to '-x' (but only for signed division) Luc Van Oostenryck
2017-02-07 19:39 ` Rasmus Villemoes
2017-02-07 20:28 ` Luc Van Oostenryck
2017-02-07 20:33 ` Christopher Li [this message]
2017-02-07 20:50 ` [PATCH v3 0/5] more simplification of constant multiplicative ops Luc Van Oostenryck
2017-02-07 20:50 ` [PATCH v3 1/5] move OP_MUL simplification in a separate function Luc Van Oostenryck
2017-02-07 20:50 ` [PATCH v3 2/5] simplify '(x / 1)' to 'x' Luc Van Oostenryck
2017-02-07 20:50 ` [PATCH v3 3/5] simplify '(x * -1)' to '-x' Luc Van Oostenryck
2017-02-07 20:50 ` [PATCH v3 4/5] simplify '(x / -1)' to '-x' (but only for signed division) Luc Van Oostenryck
2017-02-07 20:50 ` [PATCH v3 5/5] simplify '(x % 1)' into '0' Luc Van Oostenryck
2017-02-07 19:00 ` [PATCH v2 " Luc Van Oostenryck
2017-02-07 19:18 ` [PATCH v2 0/5] more simplification of constant multiplicative ops Christopher Li
2016-12-07 15:46 ` [PATCH 3/5] simplify '(x * -1)' to '-x' Luc Van Oostenryck
2016-12-07 15:46 ` [PATCH 4/5] simplify '(x / -1)' to '-x' (but only for signed division) Luc Van Oostenryck
2016-12-07 15:46 ` [PATCH 5/5] simplify '(x % 1)' into '0' Luc Van Oostenryck
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