gnu /
gcc /
3fceb4462a7484503f3048a2c402e7996c72cc7c backport: common.opt (fira-select): New.
2018-07-18 Vladimir Makarov <vmakarov@redhat.com>
Merge with trunk.
* common.opt (fira-select): New. Choose the selection algorithm
by default.
* ira-costs.c (struct op_info, op_infos, insn_selection): New.
(insn_selections): New.
(CONST_POOL_OK_P, SMALL_REGISTER_CLASS_P, general_constant_p):
New.
(insn_constraints, setup_insn_alt): New.
(record_address_regs): Forward declaration.
(define_op_cost_from_alt): New.
(scan_one_insn): Call setup_insn_alt and define_op_cost_from_alt
for the selection algorithm.
(find_costs_and_classes): Release insn_constraints and
insn_selections. Don't reuse already calculated pseudo classes
for the selection algorithm.
From-SVN: r262866
