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| author | H.J. Lu <hjl.tools@gmail.com> | 2017-07-26 05:48:44 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2017-07-26 06:19:21 -0700 |
| commit | d08bf520578bc5105820f21ad3e70ba487e5cbff (patch) | |
| tree | bb23edbcb1c1b26da9f0a966248fac93d856b4ff | |
| parent | 140827931922cd7bfd22037fede148dcbf804e72 (diff) | |
| download | gcc-hjl/x86/gcc-4_8-branch.tar.gz | |
Remove unused locals in tree SSA dcehjl/x86/gcc-4_8-branch
Partially revert:
commit 560965e9b33deb5fa67c848c8b14ea7bbb42e8a2
Author: rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Wed Feb 20 15:19:13 2013 +0000
2013-02-20 Richard Biener <rguenther@suse.de>
* tree-call-cdce.c (tree_call_cdce): Do not remove unused locals.
* tree-ssa-forwprop.c (ssa_forward_propagate_and_combine): Likewise.
* tree-ssa-dce.c (perform_tree_ssa_dce): Likewise.
* tree-ssa-copyrename.c (copy_rename_partition_coalesce): Do
not return anything.
(rename_ssa_copies): Do not remove unused locals.
* tree-ssa-ccp.c (do_ssa_ccp): Likewise.
* tree-ssanames.c (pass_release_ssa_names): Remove unused
locals first.
* passes.c (execute_function_todo): Do not schedule unused locals
removal if cleanup_tree_cfg did something.
* tree-ssa-live.c (remove_unused_locals): Dump statistics
about the number of removed locals.
* tree-ssa-dce.c (perform_tree_ssa_dce): Remove unused locals.
| -rw-r--r-- | gcc/tree-ssa-dce.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/gcc/tree-ssa-dce.c b/gcc/tree-ssa-dce.c index 7a3434b173c..f9adb20098d 100644 --- a/gcc/tree-ssa-dce.c +++ b/gcc/tree-ssa-dce.c @@ -1605,8 +1605,10 @@ perform_tree_ssa_dce (bool aggressive) free_edge_list (el); if (something_changed) - return TODO_update_ssa | TODO_cleanup_cfg; - return 0; + return (TODO_update_ssa | TODO_cleanup_cfg + | TODO_remove_unused_locals); + else + return 0; } /* Pass entry points. */ |