Re: [patch RFC] SH: Fix build failure

[Joern RENNECKE <joern dot rennecke at st dot com>]

Kaz Kojima wrote:

> Hi,
>
> The attached patch is a quick fix for the build failure on
> sh*-elf which is caused by the removal of NOTE_INSN_LOOP_*,
> though the first hunk is to silence a bogus compile time
> warning and logically independent.  It simply makes the code
> using NOTE_INSN_LOOP_* #if 0'ed out.
>  
A proper solution would be to use basic block frequency and the target
register pressure to judge if it makes sense to save all the target 
registers.
OTOH, it looks like the SH5 port will have to be removed sooner or later
anyway, so it's probably not worth the effort to do it right.

> Regards,
> 	kaz
> --
> :ADDPATCH target:
>
> 2006-11-13  Kaz Kojima  <kkojima@gcc.gnu.org>
>
> 	* config/sh/sh.c (expand_cbranchdi4): Initialize skip_label.
> 	(sh_optimize_target_register_callee_saved): #if 0 the code
> 	using NOTE_INSN_LOOP_{BEG,END}.
>  
:REVIEWMAIL:
OK.