bootstrap/3313: GCC-SH: shift_costs indexed incorrectly on sh-elf target

[tm2@best.com]

>Number:         3313
>Category:       bootstrap
>Synopsis:       GCC-SH: shift_costs indexed incorrectly on sh-elf target
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Jun 21 01:26:02 PDT 2001
>Closed-Date:
>Last-Modified:
>Originator:     Toshiyasu Morita
>Release:        3.0
>Organization:
>Environment:

>Description:
See this message

http://gcc.gnu.org/ml/gcc-bugs/2001-05/msg00802.html
>How-To-Repeat:
Run GCC under GDB
>Fix:
The best way to fix it may be to modify the RTX_COST macro
to handle non-SImode RTXes. I'm not sure what's the best fix.
>Release-Note:
>Audit-Trail:
>Unformatted: