diff options
| author | law <law@138bc75d-0d04-0410-961f-82ee72b054a4> | 2015-10-07 21:56:18 +0000 |
|---|---|---|
| committer | law <law@138bc75d-0d04-0410-961f-82ee72b054a4> | 2015-10-07 21:56:18 +0000 |
| commit | 5b4ada2a11ab19842d77296fc4b75971ddb07434 (patch) | |
| tree | a02016d5a52b8fb18cc01274f221a76ba860a673 /gcc/tree-ssa-dom.c | |
| parent | 0e526381351bdc1a865fe56435b07ec1bb87c38c (diff) | |
| download | gcc-5b4ada2a11ab19842d77296fc4b75971ddb07434.tar.gz | |
Re: [PATCH] Improve DOM's optimization of control statements
* tree-ssa-dom.c (optimize_stmt): Don't set LOOPS_NEED_FIXUP here.
* tree-ssa-threadupdate.c (remove_ctrl_stmt_and_useless_edges): Do it
here instead. Tighten test to avoid setting LOOPS_NEED_FIXUP
unnecessarily.
@@ -1848,12 +1848,6 @@ optimize_stmt (basic_block bb, gimple_stmt_iterator si,
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@228585 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/tree-ssa-dom.c')
| -rw-r--r-- | gcc/tree-ssa-dom.c | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/gcc/tree-ssa-dom.c b/gcc/tree-ssa-dom.c index 941087d56de..38cceff2c84 100644 --- a/gcc/tree-ssa-dom.c +++ b/gcc/tree-ssa-dom.c @@ -1848,12 +1848,6 @@ optimize_stmt (basic_block bb, gimple_stmt_iterator si, FOR_EACH_EDGE (e, ei, bb->succs) remove_jump_threads_including (e); - /* If BB is in a loop, then removing an outgoing edge from BB - may cause BB to move outside the loop, changes in the - loop exit edges, etc. So note that loops need fixing. */ - if (bb_loop_depth (bb) > 0) - loops_state_set (LOOPS_NEED_FIXUP); - /* Now clean up the control statement at the end of BB and remove unexecutable edges. */ remove_ctrl_stmt_and_useless_edges (bb, taken_edge->dest); |