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| author | J"orn Rennecke <joern.rennecke@superh.com> | 2002-12-19 23:45:40 +0000 |
|---|---|---|
| committer | Joern Rennecke <amylaar@gcc.gnu.org> | 2002-12-19 23:45:40 +0000 |
| commit | b2dfd40f472d34141d32e9062e3553f1e8a9e3e5 (patch) | |
| tree | 9a7330ef1808d113f68adac8b7ead9280b04857b /gcc | |
| parent | 310b9b1d761dd294d9dd36d729a5be98e688ad0f (diff) | |
| download | gcc-b2dfd40f472d34141d32e9062e3553f1e8a9e3e5.zip gcc-b2dfd40f472d34141d32e9062e3553f1e8a9e3e5.tar.gz gcc-b2dfd40f472d34141d32e9062e3553f1e8a9e3e5.tar.bz2 | |
* sched-rgn.c (init_regions): Update comment.
From-SVN: r60340
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/sched-rgn.c | 15 |
2 files changed, 8 insertions, 11 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 512ef01..f4f556d 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,7 @@ +Thu Dec 19 23:44:09 2002 J"orn Rennecke <joern.rennecke@superh.com> + + * sched-rgn.c (init_regions): Update comment. + 2002-12-19 David Edelsohn <edelsohn@gnu.org> * config/rs6000/rs6000.md (define_attr type): Remove altivec. diff --git a/gcc/sched-rgn.c b/gcc/sched-rgn.c index 3863552..570abac 100644 --- a/gcc/sched-rgn.c +++ b/gcc/sched-rgn.c @@ -2909,17 +2909,10 @@ init_regions () dominance_info dom; struct edge_list *edge_list; - /* The scheduler runs after flow; therefore, we can't blindly call - back into find_basic_blocks since doing so could invalidate the - info in global_live_at_start. - - Consider a block consisting entirely of dead stores; after life - analysis it would be a block of NOTE_INSN_DELETED notes. If - we call find_basic_blocks again, then the block would be removed - entirely and invalidate our the register live information. - - We could (should?) recompute register live information. Doing - so may even be beneficial. */ + /* The scheduler runs after estimate_probabilities; therefore, we + can't blindly call back into find_basic_blocks since doing so + could invalidate the branch probability info. We could, + however, call cleanup_cfg. */ edge_list = create_edge_list (); /* Compute the dominators and post dominators. */ |