gensupport.c (n_comma_elts): Moved here from genattrtab.c.
* gensupport.c (n_comma_elts): Moved here from genattrtab.c.
(scan_comma_elt): New function. Accepts whitespace in comma lists.
* gensupport.h: Prototype new routines.
* genattr.c (gen_attr): Use scan_comma_elt. Avoid unnecessary
use of printf.
* genattrtab.c (n_comma_elts): Moved to gensupport.c.
(next_comma_elt): Use scan_comma_elt.
* config/i386/i386.md: Use new attribute notation to break up
long lines in define_attr forms.