diff options
Diffstat (limited to 'gcc/flow.c')
| -rw-r--r-- | gcc/flow.c | 33 |
1 files changed, 29 insertions, 4 deletions
@@ -645,10 +645,6 @@ update_life_info (blocks, extent, prop_flags) && (extent == UPDATE_LIFE_LOCAL || blocks)) abort (); - /* Clear log links in case we are asked to (re)compute them. */ - if (prop_flags & PROP_LOG_LINKS) - clear_log_links (blocks); - /* For a global update, we go through the relaxation process again. */ if (extent != UPDATE_LIFE_LOCAL) { @@ -685,6 +681,10 @@ update_life_info (blocks, extent, prop_flags) count_or_remove_death_notes (blocks, 1); } + /* Clear log links in case we are asked to (re)compute them. */ + if (prop_flags & PROP_LOG_LINKS) + clear_log_links (blocks); + if (blocks) { EXECUTE_IF_SET_IN_SBITMAP (blocks, 0, i, @@ -746,6 +746,31 @@ update_life_info (blocks, extent, prop_flags) ? TV_LIFE_UPDATE : TV_LIFE); } +/* Update life information in all blocks where BB_DIRTY is set. */ + +void +update_life_info_in_dirty_blocks (extent, prop_flags) + enum update_life_extent extent; + int prop_flags; +{ + sbitmap update_life_blocks = sbitmap_alloc (n_basic_blocks); + int block_num; + int n = 0; + + sbitmap_zero (update_life_blocks); + for (block_num = 0; block_num < n_basic_blocks; block_num++) + if (BASIC_BLOCK (block_num)->flags & BB_DIRTY) + { + SET_BIT (update_life_blocks, block_num); + n++; + } + + if (n) + update_life_info (update_life_blocks, extent, prop_flags); + + sbitmap_free (update_life_blocks); +} + /* Free the variables allocated by find_basic_blocks. KEEP_HEAD_END_P is non-zero if basic_block_info is not to be freed. */ |