gcc/
* hard-reg-set.h (target_hard_regs): New structure.
(default_target_hard_regs): Declare.
(this_target_hard_regs): Declare as a variable or define as a macro.
(fixed_regs, fixed_reg_set, call_used_regs, call_really_used_regs)
(call_used_reg_set, call_fixed_reg_set, regs_invalidated_by_call)
(reg_alloc_order, inv_reg_alloc_order, reg_class_contents)
(reg_class_size, reg_class_subclasses, reg_class_subunion)
(reg_class_superunion, reg_names): Redefine as macros.
* reginfo.c (fixed_regs, fixed_reg_set, call_used_regs)
(call_used_reg_set, call_really_used_regs, call_fixed_reg_set)
(regs_invalidated_by_call, reg_alloc_order, inv_reg_alloc_order)
(reg_class_contents, reg_class_size, reg_class_subclasses)
(reg_class_subunion, reg_class_superunion, reg_names): Delete.
(default_target_hard_regs): New variable
(this_target_hard_regs, initial_call_really_used_regs)
(initial_reg_alloc_order): New conditional variables.
(initial_reg_names): New variable.
(init_reg_sets): Assert that initial_call_really_used_regs,
initial_reg_alloc_order and initial_reg_names
are all the same size as their variable counterparts. Use them to
initialize those counterparts.
* target-globals.h (this_target_hard_regs): Declare.
(target_globals): Add a hard_regs field.
(restore_target_globals): Copy the hard_regs field to
this_target_hard_regs.
* target-globals.c: Include hard-reg-set.h.
(default_target_globals): Initialize the hard_regs field.
(save_target_globals): Likewise.