diff options
Diffstat (limited to 'gcc/df.h')
| -rw-r--r-- | gcc/df.h | 40 |
1 files changed, 37 insertions, 3 deletions
@@ -951,8 +951,6 @@ extern void debug_df_chain (struct df_link *); extern struct df_link *df_chain_create (df_ref, df_ref); extern void df_chain_unlink (df_ref); extern void df_chain_copy (df_ref, struct df_link *); -extern bitmap df_get_live_in (basic_block); -extern bitmap df_get_live_out (basic_block); extern void df_grow_bb_info (struct dataflow *); extern void df_chain_dump (struct df_link *, FILE *); extern void df_print_bb_index (basic_block bb, FILE *file); @@ -1023,7 +1021,10 @@ extern void df_compute_regs_ever_live (bool); extern bool df_read_modify_subreg_p (rtx); extern void df_scan_verify (void); -/* Get basic block info. */ + +/*---------------------------------------------------------------------------- + Public functions access functions for the dataflow problems. +----------------------------------------------------------------------------*/ static inline struct df_scan_bb_info * df_scan_get_bb_info (unsigned int index) @@ -1079,6 +1080,39 @@ df_word_lr_get_bb_info (unsigned int index) return NULL; } +/* Get the live at out set for BB no matter what problem happens to be + defined. This function is used by the register allocators who + choose different dataflow problems depending on the optimization + level. */ + +static inline bitmap +df_get_live_out (basic_block bb) +{ + gcc_checking_assert (df_lr); + + if (df_live) + return DF_LIVE_OUT (bb); + else + return DF_LR_OUT (bb); +} + +/* Get the live at in set for BB no matter what problem happens to be + defined. This function is used by the register allocators who + choose different dataflow problems depending on the optimization + level. */ + +static inline bitmap +df_get_live_in (basic_block bb) +{ + gcc_checking_assert (df_lr); + + if (df_live) + return DF_LIVE_IN (bb); + else + return DF_LR_IN (bb); +} + +/* Get basic block info. */ /* Get the artificial defs for a basic block. */ static inline df_ref * |