diff options
Diffstat (limited to 'gcc/bt-load.c')
| -rw-r--r-- | gcc/bt-load.c | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/gcc/bt-load.c b/gcc/bt-load.c index c1b794d5154..e8b02256915 100644 --- a/gcc/bt-load.c +++ b/gcc/bt-load.c @@ -34,6 +34,8 @@ Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA #include "function.h" #include "except.h" #include "tm_p.h" +#include "toplev.h" +#include "tree-pass.h" /* Target register optimizations - these are performed after reload. */ @@ -1479,3 +1481,50 @@ branch_target_load_optimize (bool after_prologue_epilogue_gen) PROP_DEATH_NOTES | PROP_REG_INFO); } } + +static bool +gate_handle_branch_target_load_optimize (void) +{ + return (optimize > 0 && flag_branch_target_load_optimize2); +} + + +static void +rest_of_handle_branch_target_load_optimize (void) +{ + static int warned = 0; + + /* Leave this a warning for now so that it is possible to experiment + with running this pass twice. In 3.6, we should either make this + an error, or use separate dump files. */ + if (flag_branch_target_load_optimize + && flag_branch_target_load_optimize2 + && !warned) + { + warning (0, "branch target register load optimization is not intended " + "to be run twice"); + + warned = 1; + } + + branch_target_load_optimize (epilogue_completed); +} + +struct tree_opt_pass pass_branch_target_load_optimize = +{ + "btl", /* name */ + gate_handle_branch_target_load_optimize, /* gate */ + rest_of_handle_branch_target_load_optimize, /* 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 */ + TODO_dump_func | + TODO_ggc_collect, /* todo_flags_finish */ + 'd' /* letter */ +}; + |
