* ggc-zone.c (struct alloc_zone): Add statistics counters.
(always_collect): New flag.
(ggc_alloc_zone_1): Update statistics support. Don't include
overhead in allocated counter.
(sweep_pages): Update allocated counter for large pages. Don'y
include overhead.
(ggc_collect_1): Always collect.
(ggc_collect): Honor always_collect flag. Sum all zones to decide
whether to collect.
(SCALE, LABEL): New macros.
(ggc_print_statistics): Add statistics support.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@85729
138bc75d-0d04-0410-961f-
82ee72b054a4