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| author | Jeff Law <law@redhat.com> | 2015-10-06 20:25:57 -0600 |
|---|---|---|
| committer | Jeff Law <law@gcc.gnu.org> | 2015-10-06 20:25:57 -0600 |
| commit | 00852255e4a0d3b67ed853aacbc4aa4f4dfe724a (patch) | |
| tree | 38f2371bdfbd8f8e7bf213eb5d5aa9aa8733c0f7 /gcc/tree-ssa-threadupdate.h | |
| parent | 165ccc545563b5899a4e8256933b8955914f988b (diff) | |
| download | gcc-00852255e4a0d3b67ed853aacbc4aa4f4dfe724a.zip gcc-00852255e4a0d3b67ed853aacbc4aa4f4dfe724a.tar.gz gcc-00852255e4a0d3b67ed853aacbc4aa4f4dfe724a.tar.bz2 | |
[PATCH][PR tree-optimization/67816] Fix jump threading when DOM removes conditionals in jump threading path
PR tree-optimization/67816
* tree-ssa-threadupdate.h (remove_jump_threads_including): Renamed
from remove_jump_threads_starting_at. Accept an edge rather than
a basic block.
* tree-ssa-threadupdate.c (removed_edges): New hash table.
(remove_jump_threads_including): Note edges that get removed from
the CFG for later pruning of jump threading paths including them.
(thread_through_all_blocks): Remove paths which include edges that
have been removed.
* tree-ssa-dom.c (optimize_stmt): Call remove_jump_threads_including
on each outgoing edges when optimizing away a control statement.
* gcc.c-torture/compile/pr67816.c: New test.
From-SVN: r228559
Diffstat (limited to 'gcc/tree-ssa-threadupdate.h')
| -rw-r--r-- | gcc/tree-ssa-threadupdate.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/gcc/tree-ssa-threadupdate.h b/gcc/tree-ssa-threadupdate.h index 30428e8..984b6c4 100644 --- a/gcc/tree-ssa-threadupdate.h +++ b/gcc/tree-ssa-threadupdate.h @@ -43,7 +43,7 @@ public: }; extern void register_jump_thread (vec <class jump_thread_edge *> *); -extern void remove_jump_threads_starting_at (basic_block); +extern void remove_jump_threads_including (edge); extern void delete_jump_thread_path (vec <class jump_thread_edge *> *); extern void remove_ctrl_stmt_and_useless_edges (basic_block, basic_block); #endif |