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From: Josh Triplett <josh@joshtriplett.org>
To: Phil Carmody <phil@dovecot.fi>
Cc: sparse@chrisli.org, linux-sparse@vger.kernel.org
Subject: Re: [PATCH 1/3] sparse: Just use simple ints for decision variables
Date: Mon, 9 Jun 2014 06:27:59 -0700	[thread overview]
Message-ID: <20140609132759.GA11986@thin> (raw)
In-Reply-To: <1402315082-14102-2-git-send-email-phil@dovecot.fi>

On Mon, Jun 09, 2014 at 02:58:00PM +0300, Phil Carmody wrote:
> The expressions are just ints, and const is pointess.

"bool" actually seems more appropriate here.  As for the const, it
does in fact hold true, as neither changes afte rdeclaration; why not
keep it?

> Signed-off-by: Phil Carmody <phil@dovecot.fi>
> ---
>  evaluate.c | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/evaluate.c b/evaluate.c
> index 6655615..9052962 100644
> --- a/evaluate.c
> +++ b/evaluate.c
> @@ -917,10 +917,10 @@ static struct symbol *evaluate_binop(struct expression *expr)
>  			rtype = integer_promotion(rtype);
>  		} else {
>  			// The rest do usual conversions
> -			const unsigned left_not  = expr->left->type == EXPR_PREOP
> -			                           && expr->left->op == '!';
> -			const unsigned right_not = expr->right->type == EXPR_PREOP
> -			                           && expr->right->op == '!';
> +			int left_not  = expr->left->type == EXPR_PREOP
> +					&& expr->left->op == '!';
> +			int right_not = expr->right->type == EXPR_PREOP
> +			                && expr->right->op == '!';
>  			if ((op == '&' || op == '|') && (left_not || right_not))
>  				warning(expr->pos, "dubious: %sx %c %sy",
>  				        left_not ? "!" : "",
> -- 
> 2.0.0
> 
> --
> To unsubscribe from this list: send the line "unsubscribe linux-sparse" in
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> More majordomo info at  http://vger.kernel.org/majordomo-info.html

  parent reply	other threads:[~2014-06-09 13:28 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-06-09 11:57 [PATCH 0/3] catch non-sign-extended '~' brainos Phil Carmody
2014-06-09 11:58 ` [PATCH 1/3] sparse: Just use simple ints for decision variables Phil Carmody
2014-06-09 11:58   ` [PATCH 2/3] sparse: detect non-sign-extended masks created by '~' Phil Carmody
2014-06-09 11:58     ` [PATCH 3/3] validation: dubious bitwise operations with nots Phil Carmody
2014-06-09 13:36       ` Josh Triplett
2014-06-09 13:34     ` [PATCH 2/3] sparse: detect non-sign-extended masks created by '~' Josh Triplett
2014-06-09 16:05       ` Phil Carmody
2014-06-09 13:27   ` Josh Triplett [this message]
2014-06-10  7:54 ` [PATCHv2 0/3] catch non-sign-extended '~' brainos Phil Carmody
2014-06-10  7:54   ` [PATCHv2 1/3] sparse: Just use simple ints for decision variables Phil Carmody
2014-06-10  7:54     ` [PATCHv2 2/3] sparse: detect non-sign-extended masks created by '~' Phil Carmody
2014-06-10  7:54       ` [PATCHv2 3/3] validation: dubious bitwise operations with bitwise nots Phil Carmody
2014-06-27 11:19   ` [PATCHv2 0/3] catch non-sign-extended '~' brainos Phil Carmody
2014-06-27 17:16     ` Christopher Li
2014-06-30  8:56       ` Phil Carmody
     [not found]         ` <CANeU7Q=Z=Xac_T3JRAyqo_fF4LAKD-MM41NYz+nDstDutcVUfA@mail.gmail.com>
2014-06-30 17:27           ` Christopher Li
2014-07-01 11:30           ` Phil Carmody
2014-07-01 19:42             ` Christopher Li
2014-07-02  7:43               ` Phil Carmody
2014-07-02  8:51                 ` Christopher Li
2014-07-02  9:28                   ` Phil Carmody

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