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| author | Richard Biener <rguenther@suse.de> | 2015-03-18 12:29:20 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2015-03-18 12:29:20 +0000 |
| commit | 9538c95bb185a04a86a993c4332b7f19aca95f1e (patch) | |
| tree | 82f17baa9df7d450d4c2cc2e708ccb4bf32abfc6 /gcc/tree-ssa-loop-ch.c | |
| parent | 076701b69d3a1f02e46df451ab9cb092863e5baa (diff) | |
| download | gcc-9538c95bb185a04a86a993c4332b7f19aca95f1e.zip gcc-9538c95bb185a04a86a993c4332b7f19aca95f1e.tar.gz gcc-9538c95bb185a04a86a993c4332b7f19aca95f1e.tar.bz2 | |
tree-ssa-loop-ch.c (pass_data_ch): Remove TODO_cleanup_cfg.
2015-03-18 Richard Biener <rguenther@suse.de>
* tree-ssa-loop-ch.c (pass_data_ch): Remove TODO_cleanup_cfg.
(pass_ch::execute): Cleanup the CFG only if we did sth.
* tree-vect-generic.c (pass_data_lower_vector): Remove TODO_cleanup_cfg.
From-SVN: r221487
Diffstat (limited to 'gcc/tree-ssa-loop-ch.c')
| -rw-r--r-- | gcc/tree-ssa-loop-ch.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/gcc/tree-ssa-loop-ch.c b/gcc/tree-ssa-loop-ch.c index d759de7..c6441b8 100644 --- a/gcc/tree-ssa-loop-ch.c +++ b/gcc/tree-ssa-loop-ch.c @@ -159,7 +159,7 @@ const pass_data pass_data_ch = 0, /* properties_provided */ 0, /* properties_destroyed */ 0, /* todo_flags_start */ - TODO_cleanup_cfg, /* todo_flags_finish */ + 0, /* todo_flags_finish */ }; class pass_ch : public gimple_opt_pass @@ -184,6 +184,7 @@ pass_ch::execute (function *fun) basic_block *bbs, *copied_bbs; unsigned n_bbs; unsigned bbs_size; + bool changed = false; loop_optimizer_init (LOOPS_HAVE_PREHEADERS | LOOPS_HAVE_SIMPLE_LATCHES); @@ -291,6 +292,8 @@ pass_ch::execute (function *fun) are not now, since there was the loop exit condition. */ split_edge (loop_preheader_edge (loop)); split_edge (loop_latch_edge (loop)); + + changed = true; } update_ssa (TODO_update_ssa); @@ -298,7 +301,7 @@ pass_ch::execute (function *fun) free (copied_bbs); loop_optimizer_finalize (); - return 0; + return changed ? TODO_cleanup_cfg : 0; } } // anon namespace |