2015-05-14 Vladimir Makarov <vmakarov@redhat.com>
PR rtl-optimization/65862
* target.def (ira_change_pseudo_allocno_class): New hook.
* targhooks.c (default_ira_change_pseudo_allocno_class): Default
value of the hook.
* targhooks.h (default_ira_change_pseudo_allocno_class): New
extern
* doc/tm.texi.in (TARGET_IRA_CHANGE_PSEUDO_ALLOCNO_CLASS): Add the
hook.
* ira-costs.c (find_costs_and_classes): Call the hook and change
classes when it is necessary.
* doc/tm.texi: Update.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@223202 138bc75d-0d04-0410-961f-82ee72b054a4