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| author | rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-05-06 09:04:00 +0000 |
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| committer | rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-05-06 09:04:00 +0000 |
| commit | 9bf0a3f99ba5847649ec27115c324e000b53de92 (patch) | |
| tree | 06f32bf636037d2caf5f7c51678ee35c661cafa5 /gcc/domwalk.c | |
| parent | 7a3ffe9974993112c5262808d7c7b5a52ee69304 (diff) | |
| download | gcc-9bf0a3f99ba5847649ec27115c324e000b53de92.tar.gz | |
2010-05-06 Richard Guenther <rguenther@suse.de>
PR tree-optimization/43934
* tree-ssa-loop-im.c (movement_possibility): Handle PHI nodes.
(stmt_cost): Likewise.
(extract_true_false_args_from_phi): New helper.
(determine_max_movement): For PHI nodes verify we can hoist them
and compute their cost.
(determine_invariantness_stmt): Handle PHI nodes.
(move_computations_stmt): Likewise. Hoist PHI nodes in
if-converted form using COND_EXPRs.
(move_computations): Return TODO_cleanup_cfg if we hoisted PHI
nodes.
(tree_ssa_lim): Likewise.
* tree-flow.h (tree_ssa_lim): Adjust prototype.
* tree-ssa-loop.c (tree_ssa_loop_im): Return todo.
* gcc.dg/tree-ssa/ssa-lim-9.c: New testcase.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@159099 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/domwalk.c')
0 files changed, 0 insertions, 0 deletions