[PATCH] fold_builtin target hook

[Roger Sayle]

On Mon, 20 Sep 2004, Paolo Bonzini wrote:
> 2004-09-20  Paolo Bonzini  <bonzini@gnu.org>
>
>	* builtins.c (fold_builtin): Call the new omonymous
>	target hook for machine-dependent built-ins.
>	* target-def.h (TARGET_FOLD_BUILTIN): New.
>	* target.h (struct gcc_target): Add the fold_builtin hook.
>	* targhooks.c (default_fold_builtin): New.
>	* targhooks.h (default_fold_builtin): Declare it.


This is OK for mainline.  I presume this is required infrastructure
to fix some of the outstanding altivec bugs?  The patch itself is
safe and it's useful functionality to have in the compiler.

Thanks,

Roger
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