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| author | Richard Biener <rguenther@suse.de> | 2019-06-04 09:05:10 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2019-06-04 09:05:10 +0000 |
| commit | 5fd8a9cb5b0e95af7f833f8dfe62ce5b9d435846 (patch) | |
| tree | 3b5d284dec65e1db933d98245b02d38df7414bff /gcc/omp-expand.c | |
| parent | d62887a42bc49963179b0429f6914b050dd2517c (diff) | |
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re PR middle-end/90726 (exponential behavior on SCEV results everywhere)
2019-06-04 Richard Biener <rguenther@suse.de>
PR middle-end/90726
* tree-chrec.c (chrec_contains_symbols): Add to visited.
(tree_contains_chrecs): Likewise.
(chrec_contains_symbols_defined_in_loop): Move here and avoid
exponential behaivor from ...
* tree-scalar-evolution.c (chrec_contains_symbols_defined_in_loop):
... here.
(expression_expensive_p): Avoid exponential behavior and compute
expanded size, rejecting any expansion.
* tree-ssa-loop-ivopts.c (abnormal_ssa_name_p): Remove.
(idx_contains_abnormal_ssa_name_p): Likewise.
(contains_abnormal_ssa_name_p_1): New helper for walk_tree.
(contains_abnormal_ssa_name_p): Simplify and use
walk_tree_without_duplicates.
* gcc.dg/pr90726.c: New testcase.
From-SVN: r271903
Diffstat (limited to 'gcc/omp-expand.c')
0 files changed, 0 insertions, 0 deletions