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| author | Richard Guenther <rguenther@suse.de> | 2012-09-12 14:46:22 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2012-09-12 14:46:22 +0000 |
| commit | 40b178f44696219fb4781f1f555eb7962fbcd401 (patch) | |
| tree | 75f427c396cf952039512fc27fcfae7107035c92 /gcc/tree-ssa-phiopt.c | |
| parent | 0dadc27181235760099ae5c87a48b46b22b65d8b (diff) | |
| download | gcc-40b178f44696219fb4781f1f555eb7962fbcd401.zip gcc-40b178f44696219fb4781f1f555eb7962fbcd401.tar.gz gcc-40b178f44696219fb4781f1f555eb7962fbcd401.tar.bz2 | |
re PR tree-optimization/54489 (tree FRE uses an excessive amount of memory)
2012-09-12 Richard Guenther <rguenther@suse.de>
PR tree-optimization/54489
* tree-ssa-pre.c: Include domwalk.h.
(in_fre): Remove.
(sccvn_valnum_from_value_id): New function.
(debug_bitmap_sets_for): Simplify.
(get_representative_for): Properly initialize the SCCVN valnum.
(create_expression_by_pieces): Likewise.
(insert_into_preds_of_block): Likewise.
(can_PRE_operation): Remove.
(make_values_for_phi): Simplify.
(compute_avail): Likewise.
(do_SCCVN_insertion): Remove.
(eliminate_avail, eliminate_push_avail, eliminate_insert):
New functions.
(eliminate): Split and perform a domwalk.
(eliminate_bb): Former eliminate part that is now dom-enter.
(eliminate_leave_block): New function.
(fini_eliminate): Likewise.
(init_pre): Simplify.
(fini_pre): Likewise.
(execute_pre): Fold into do_pre and do_fre.
(do_pre): Consume execute_pre.
(do_fre): Likewise.
* Makefile.in (tree-ssa-pre.o): Add domwalk.h dependency.
From-SVN: r191225
Diffstat (limited to 'gcc/tree-ssa-phiopt.c')
0 files changed, 0 insertions, 0 deletions