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| author | Richard Biener <rguenther@suse.de> | 2019-05-03 07:05:34 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2019-05-03 07:05:34 +0000 |
| commit | c0f9d1fd7e54434e4f06b20b9a61a9d35c578223 (patch) | |
| tree | 78ef826d920777215457cdce3cb57e47c4be4d93 | |
| parent | eae0da61e5dd4406a492bbe5d57238eda2e2cf0d (diff) | |
| download | gcc-c0f9d1fd7e54434e4f06b20b9a61a9d35c578223.tar.gz | |
passes.c (execute_function_todo): Remove dead code.
2019-05-03 Richard Biener <rguenther@suse.de>
* passes.c (execute_function_todo): Remove dead code.
From-SVN: r270832
| -rw-r--r-- | gcc/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/passes.c | 24 |
2 files changed, 9 insertions, 19 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 53428649c37..65df01190cc 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,7 @@ +2019-05-03 Richard Biener <rguenther@suse.de> + + * passes.c (execute_function_todo): Remove dead code. + 2019-05-02 Segher Boessenkool <segher@kernel.crashing.org> * config/rs6000/rs6000.c (rs6000_dbx_register_number): Do not use diff --git a/gcc/passes.c b/gcc/passes.c index 02561f8bf18..a9c22889d71 100644 --- a/gcc/passes.c +++ b/gcc/passes.c @@ -1924,26 +1924,12 @@ execute_function_todo (function *fn, void *data) push_cfun (fn); - /* Always cleanup the CFG before trying to update SSA. */ + /* If we need to cleanup the CFG let it perform a needed SSA update. */ if (flags & TODO_cleanup_cfg) - { - cleanup_tree_cfg (flags & TODO_update_ssa_any); - - /* When cleanup_tree_cfg merges consecutive blocks, it may - perform some simplistic propagation when removing single - valued PHI nodes. This propagation may, in turn, cause the - SSA form to become out-of-date (see PR 22037). So, even - if the parent pass had not scheduled an SSA update, we may - still need to do one. */ - if (!(flags & TODO_update_ssa_any) && need_ssa_update_p (cfun)) - flags |= TODO_update_ssa; - } - - if (flags & TODO_update_ssa_any) - { - unsigned update_flags = flags & TODO_update_ssa_any; - update_ssa (update_flags); - } + cleanup_tree_cfg (flags & TODO_update_ssa_any); + else if (flags & TODO_update_ssa_any) + update_ssa (flags & TODO_update_ssa_any); + gcc_assert (!need_ssa_update_p (fn)); if (flag_tree_pta && (flags & TODO_rebuild_alias)) compute_may_aliases (); |