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From: Nathan Froyd <froydnj@codesourcery.com>
To: gcc-patches@gcc.gnu.org, David Edelsohn <dje.gcc@gmail.com>,
	dalej@apple.com, mikestump@comcast.net
Subject: Re: Allow more PowerPC sibling calls
Date: Mon, 18 Apr 2011 17:37:00 -0000	[thread overview]
Message-ID: <20110418172917.GA23480@codesourcery.com> (raw)
In-Reply-To: <20110409025146.GF19002@bubble.grove.modra.org>

On Sat, Apr 09, 2011 at 12:21:46PM +0930, Alan Modra wrote:
> a) Allow sibling calls via function pointer.  At the time
>    rs6000_function_ok_for_sibcall was written, I don't think access to
>    arg types of function pointer calls was available in the target
>    hook/macro.
>
> +      /* Functions with vector parameters are required to have a
> +	 prototype, so the argument type info must be available
> +	 here.  */
> +      for (type = TYPE_ARG_TYPES (fntype);
> +	   type;
> +	   type = TREE_CHAIN (type))
> +	if (TREE_CODE (TREE_VALUE (type)) == VECTOR_TYPE
> +	    && (ALTIVEC_VECTOR_MODE (TYPE_MODE (TREE_VALUE (type)))
> +		|| VSX_VECTOR_MODE (TYPE_MODE (TREE_VALUE (type)))))
> +	  nvreg++;
> +
> +      for (type = TYPE_ARG_TYPES (TREE_TYPE (current_function_decl));
> +	   type;
> +	   type = TREE_CHAIN (type))
> +	if (TREE_CODE (TREE_VALUE (type)) == VECTOR_TYPE
> +	    && (ALTIVEC_VECTOR_MODE (TYPE_MODE (TREE_VALUE (type)))
> +		|| VSX_VECTOR_MODE (TYPE_MODE (TREE_VALUE (type)))))
> +	  nvreg--;

Could I request that you use FOREACH_FUNCTION_ARGS in these two cases?
The conversion is trivial, and avoiding more exposed TYPE_ARG_TYPES
calls is a good thing.

Thanks,
-Nathan

  parent reply	other threads:[~2011-04-18 17:29 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-04-09  2:52 Alan Modra
2011-04-18 17:34 ` David Edelsohn
2011-04-18 21:25   ` Mike Stump
2011-04-18 17:37 ` Nathan Froyd [this message]
2011-04-22  5:00   ` Alan Modra
2011-04-22  6:13     ` Alan Modra

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