* config/i386/i386.c (ix86_dep_by_shift_count_body) : Add
check on reload_completed since it can be invoked before
register allocation phase in pre-reload schedule.
(ia32_multipass_dfa_lookahead) : Do not use dfa_lookahead for pre-reload
schedule to save compile time.
(ix86_sched_reorder) : Do not perform ready list reordering for pre-reload
schedule to save compile time.
(insn_is_function_arg) : New function. Returns true if lhs of insn is
HW function argument register.
(add_parameter_dependencies) : New function. Add output dependencies
for chain of function adjacent arguments if only there is a move to
likely spilled HW registers. Return first argument if at least one
dependence was added or NULL otherwise.
(avoid_func_arg_motion) : New function. Add output or anti dependency
from insn to first_arg to restrict code motion.
(add_dependee_for_func_arg) : New function. Avoid cross block motion of
function argument through adding dependency from the first non-jump
insn in bb.
(ix86_dependencies_evaluation_hook) : New function. Hook for pre-reload schedule:
avoid motion of function arguments passed in passed in likely spilled
HW registers.
(ix86_adjust_priority) : New function. Hook for pre-reload schedule: set priority
of moves from likely spilled HW registers to maximum to schedule them
as soon as possible.
(ix86_sched_init_global): Do not perform multipass scheduling for pre-reload
schedule to save compile time.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@192065
138bc75d-0d04-0410-961f-
82ee72b054a4