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| author | Richard Biener <rguenther@suse.de> | 2022-10-20 11:04:21 +0200 |
|---|---|---|
| committer | Richard Biener <rguenther@suse.de> | 2022-10-20 12:49:50 +0200 |
| commit | 5362b5cc8dba9de70904613fff1d5391a9c087ce (patch) | |
| tree | 7ff6ab63d0a747beb811208e228d7dc34b8643e8 /libgomp | |
| parent | c7ebee2378426eeca425ca5406af213a926f154c (diff) | |
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Avoid PHI - PHI recurrence in vectorization
The reported regression of libgomp loop-14.C shows that there isn't
generally a good reliable place to insert the permute upfront so
the following simply restricts recurrence vectorization to the cases
where the latch value isn't defined by a PHI.
* tree-vect-loop.cc (vect_phi_first_order_recurrence_p):
Disallow latch PHI defs.
(vectorizable_recurr): Revert previous change.
Diffstat (limited to 'libgomp')
0 files changed, 0 insertions, 0 deletions