diff options
Diffstat (limited to 'gcc/recog.c')
| -rw-r--r-- | gcc/recog.c | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/gcc/recog.c b/gcc/recog.c index eb9aeacdd85..8e6a62b6dd0 100644 --- a/gcc/recog.c +++ b/gcc/recog.c @@ -39,6 +39,8 @@ Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA #include "basic-block.h" #include "output.h" #include "reload.h" +#include "timevar.h" +#include "tree-pass.h" #ifndef STACK_PUSH_CODE #ifdef STACK_GROWS_DOWNWARD @@ -3418,3 +3420,122 @@ if_test_bypass_p (rtx out_insn, rtx in_insn) return true; } + +static bool +gate_handle_peephole2 (void) +{ + return (optimize > 0 && flag_peephole2); +} + +static void +rest_of_handle_peephole2 (void) +{ +#ifdef HAVE_peephole2 + peephole2_optimize (dump_file); +#endif +} + +struct tree_opt_pass pass_peephole2 = +{ + "peephole2", /* name */ + gate_handle_peephole2, /* gate */ + rest_of_handle_peephole2, /* execute */ + NULL, /* sub */ + NULL, /* next */ + 0, /* static_pass_number */ + TV_PEEPHOLE2, /* tv_id */ + 0, /* properties_required */ + 0, /* properties_provided */ + 0, /* properties_destroyed */ + 0, /* todo_flags_start */ + TODO_dump_func, /* todo_flags_finish */ + 'z' /* letter */ +}; + +static void +rest_of_handle_split_all_insns (void) +{ + split_all_insns (1); +} + +struct tree_opt_pass pass_split_all_insns = +{ + NULL, /* name */ + NULL, /* gate */ + rest_of_handle_split_all_insns, /* execute */ + NULL, /* sub */ + NULL, /* next */ + 0, /* static_pass_number */ + 0, /* tv_id */ + 0, /* properties_required */ + 0, /* properties_provided */ + 0, /* properties_destroyed */ + 0, /* todo_flags_start */ + 0, /* todo_flags_finish */ + 0 /* letter */ +}; + +/* The placement of the splitting that we do for shorten_branches + depends on whether regstack is used by the target or not. */ +static bool +gate_do_final_split (void) +{ +#if defined (HAVE_ATTR_length) && !defined (STACK_REGS) + return 1; +#else + return 0; +#endif +} + +struct tree_opt_pass pass_split_for_shorten_branches = +{ + NULL, /* name */ + gate_do_final_split, /* gate */ + split_all_insns_noflow, /* execute */ + NULL, /* sub */ + NULL, /* next */ + 0, /* static_pass_number */ + TV_SHORTEN_BRANCH, /* tv_id */ + 0, /* properties_required */ + 0, /* properties_provided */ + 0, /* properties_destroyed */ + 0, /* todo_flags_start */ + 0, /* todo_flags_finish */ + 0 /* letter */ +}; + + +static bool +gate_handle_split_before_regstack (void) +{ +#if defined (HAVE_ATTR_length) && defined (STACK_REGS) + /* If flow2 creates new instructions which need splitting + and scheduling after reload is not done, they might not be + split until final which doesn't allow splitting + if HAVE_ATTR_length. */ +# ifdef INSN_SCHEDULING + return (optimize && !flag_schedule_insns_after_reload); +# else + return (optimize); +# endif +#else + return 0; +#endif +} + +struct tree_opt_pass pass_split_before_regstack = +{ + NULL, /* name */ + gate_handle_split_before_regstack, /* gate */ + rest_of_handle_split_all_insns, /* execute */ + NULL, /* sub */ + NULL, /* next */ + 0, /* static_pass_number */ + TV_SHORTEN_BRANCH, /* tv_id */ + 0, /* properties_required */ + 0, /* properties_provided */ + 0, /* properties_destroyed */ + 0, /* todo_flags_start */ + 0, /* todo_flags_finish */ + 0 /* letter */ +}; |