diff options
Diffstat (limited to 'gcc/cfgrtl.c')
| -rw-r--r-- | gcc/cfgrtl.c | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/gcc/cfgrtl.c b/gcc/cfgrtl.c index 6abac76..16fca39 100644 --- a/gcc/cfgrtl.c +++ b/gcc/cfgrtl.c @@ -1923,10 +1923,30 @@ purge_dead_edges (bb) */ bool -purge_all_dead_edges () +purge_all_dead_edges (update_life_p) + bool update_life_p; { int i, purged = false; + sbitmap blocks; + + if (update_life_p) + { + blocks = sbitmap_alloc (n_basic_blocks); + sbitmap_zero (blocks); + } for (i = 0; i < n_basic_blocks; i++) - purged |= purge_dead_edges (BASIC_BLOCK (i)); + { + bool purged_here; + purged_here = purge_dead_edges (BASIC_BLOCK (i)); + purged |= purged_here; + if (purged_here && update_life_p) + SET_BIT (blocks, i); + } + if (update_life_p && purged) + update_life_info (blocks, UPDATE_LIFE_GLOBAL, + PROP_DEATH_NOTES | PROP_SCAN_DEAD_CODE + | PROP_KILL_DEAD_CODE); + if (update_life_p) + sbitmap_free (blocks); return purged; } |