diff options
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/flow.c | 9 |
2 files changed, 7 insertions, 7 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 06f2531..ad5ebc5 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2000-05-06 Richard Henderson <rth@cygnus.com> + + * flow.c (split_edge): Don't allocate global_live_at_start for + the new block unless the old blocks had them as well. + 2000-05-06 Zack Weinberg <zack@wolery.cumb.org> * cpphash.h: Remove conditional #define of __extension__. @@ -1349,20 +1349,15 @@ split_edge (edge_in) n_edges++; memset (bb, 0, sizeof (*bb)); - bb->global_live_at_start = OBSTACK_ALLOC_REG_SET (function_obstack); - bb->global_live_at_end = OBSTACK_ALLOC_REG_SET (function_obstack); /* ??? This info is likely going to be out of date very soon. */ if (old_succ->global_live_at_start) { + bb->global_live_at_start = OBSTACK_ALLOC_REG_SET (function_obstack); + bb->global_live_at_end = OBSTACK_ALLOC_REG_SET (function_obstack); COPY_REG_SET (bb->global_live_at_start, old_succ->global_live_at_start); COPY_REG_SET (bb->global_live_at_end, old_succ->global_live_at_start); } - else - { - CLEAR_REG_SET (bb->global_live_at_start); - CLEAR_REG_SET (bb->global_live_at_end); - } /* Wire them up. */ bb->pred = edge_in; |