2008-11-14 Vladimir Makarov <vmakarov@redhat.com>
PR rtl-optimization/37397
* ira-int.h (struct ira_allocno): New member bad_spill_p.
(ALLOCNO_BAD_SPILL_P): New macro.
* ira-color.c (push_allocnos_to_stack): Check ALLOCNO_BAD_SPILL_P.
* ira-build.c (ira_create_allocno): Initialize
ALLOCNO_BAD_SPILL_P.
(create_cap_allocno, propagate_allocno_info,
remove_unnecessary_allocnos): Set up or update
ALLOCNO_BAD_SPILL_P.
(update_bad_spill_attribute): New function.
(ira_build): Call it.
* ira-costs.c (record_reg_classes): Set up ALLOCNO_BAD_SPILL_P.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@141860
138bc75d-0d04-0410-961f-
82ee72b054a4