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List:       gcc-patches
Subject:    Re: [PATCH] Improve tree_unary_nonnegative_warnv_p (PR middle-end/58564)
From:       Richard Biener <rguenther () suse ! de>
Date:       2013-09-30 13:39:11
Message-ID: alpine.LNX.2.00.1309301539040.5759 () zhemvz ! fhfr ! qr
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On Mon, 30 Sep 2013, Jakub Jelinek wrote:

> Hi!
> 
> Related to the last patch, this handles also BOOLEAN_TYPE and
> ENUMERAL_TYPE the same as INTEGER_TYPE in tree_unary_nonnegative_warnv_p,
> which means we e.g. fold properly the (int) (x != 0 && y != 0) < 0
> when (x != 0 && y != 0) has BOOLEAN_TYPE.
> 
> Bootstrapped/regtested on x86_64-linux and i686-linux, ok for trunk?

Ok.

Thanks,
Richard.

> 2013-09-30  Jakub Jelinek  <jakub@redhat.com>
> 
> 	PR middle-end/58564
> 	* fold-const.c (tree_unary_nonnegative_warnv_p): Use
> 	INTEGRAL_TYPE_P (t) instead of TREE_CODE (t) == INTEGER_TYPE.
> 
> --- gcc/fold-const.c.jj	2013-09-30 11:19:06.000000000 +0200
> +++ gcc/fold-const.c	2013-09-30 11:47:40.984561868 +0200
> @@ -15448,7 +15448,7 @@ tree_unary_nonnegative_warnv_p (enum tre
>  	    if (TREE_CODE (inner_type) == REAL_TYPE)
>  	      return tree_expr_nonnegative_warnv_p (op0,
>  						    strict_overflow_p);
> -	    if (TREE_CODE (inner_type) == INTEGER_TYPE)
> +	    if (INTEGRAL_TYPE_P (inner_type))
>  	      {
>  		if (TYPE_UNSIGNED (inner_type))
>  		  return true;
> @@ -15456,12 +15456,12 @@ tree_unary_nonnegative_warnv_p (enum tre
>  						      strict_overflow_p);
>  	      }
>  	  }
> -	else if (TREE_CODE (outer_type) == INTEGER_TYPE)
> +	else if (INTEGRAL_TYPE_P (outer_type))
>  	  {
>  	    if (TREE_CODE (inner_type) == REAL_TYPE)
>  	      return tree_expr_nonnegative_warnv_p (op0,
>  						    strict_overflow_p);
> -	    if (TREE_CODE (inner_type) == INTEGER_TYPE)
> +	    if (INTEGRAL_TYPE_P (inner_type))
>  	      return TYPE_PRECISION (inner_type) < TYPE_PRECISION (outer_type)
>  		      && TYPE_UNSIGNED (inner_type);
>  	  }
> 
> 	Jakub
> 
> 

-- 
Richard Biener <rguenther@suse.de>
SUSE / SUSE Labs
SUSE LINUX Products GmbH - Nuernberg - AG Nuernberg - HRB 16746
GF: Jeff Hawn, Jennifer Guild, Felix Imend
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