Patch to implement XFmode/TFmode constant suffixes on IA64

[Uros Bizjak]

Hello!

> When the patch to allow the use of 'q' and 'w' suffixes went in for
> i386, the tests that were added were also enabled for IA64 but the code
> to allow these suffixes was not put in.  Here is a patch to implement
> the suffixes for IA64, it is basically the same code that i386 uses.
> 2007-07-27  Steve Ellcey  <sje@cup.hp.com>
>
> 	* config/ia64/ia64.c (ia64_c_mode_for_suffix): New.
> 	(TARGET_C_MODE_FOR_SUFFIX): New.

This patch can be considered as obvious due to the above reason.

Uros.