diff options
Diffstat (limited to 'gcc/tree-pass.h')
| -rw-r--r-- | gcc/tree-pass.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/gcc/tree-pass.h b/gcc/tree-pass.h index b772435..299255c 100644 --- a/gcc/tree-pass.h +++ b/gcc/tree-pass.h @@ -218,6 +218,9 @@ struct dump_file_info for the passes that are handed to register_dump_files. */ #define TODO_set_props (1 << 15) +/* Internally used for the first instance of a pass. */ +#define TODO_mark_first_instance (1 << 16) + #define TODO_update_ssa_any \ (TODO_update_ssa \ | TODO_update_ssa_no_phi \ @@ -417,4 +420,13 @@ extern struct tree_opt_pass *all_passes, *all_ipa_passes, *all_lowering_passes; extern void execute_pass_list (struct tree_opt_pass *); extern void execute_ipa_pass_list (struct tree_opt_pass *); +/* Set to true if the pass is called the first time during compilation of the + current function. Note that using this information in the optimization + passes is considered not to be clean, and it should be avoided if possible. + This flag is currently used to prevent loops from being peeled repeatedly + in jump threading; it will be removed once we preserve loop structures + throughout the compilation -- we will be able to mark the affected loops + directly in jump threading, and avoid peeling them next time. */ +extern bool first_pass_instance; + #endif /* GCC_TREE_PASS_H */ |