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| author | Richard Biener <rguenther@suse.de> | 2020-09-04 14:35:39 +0200 |
|---|---|---|
| committer | Richard Biener <rguenther@suse.de> | 2020-09-04 15:42:43 +0200 |
| commit | 46a58c779af3055a4b10b285a1f4be28abe4351c (patch) | |
| tree | baefb67199cad573cf5461dbfc4c9f8be57a2001 /gcc/cp/expr.c | |
| parent | 09fa6acd8d96013cf97046b273642fdefeef7559 (diff) | |
| download | gcc-46a58c779af3055a4b10b285a1f4be28abe4351c.zip gcc-46a58c779af3055a4b10b285a1f4be28abe4351c.tar.gz gcc-46a58c779af3055a4b10b285a1f4be28abe4351c.tar.bz2 | |
tree-optimization/96920 - another ICE when vectorizing nested cycles
This refines the previous fix for PR96698 by re-doing how and where
we arrange for setting vectorized cycle PHI backedge values.
2020-09-04 Richard Biener <rguenther@suse.de>
PR tree-optimization/96698
PR tree-optimization/96920
* tree-vectorizer.h (loop_vec_info::reduc_latch_defs): Remove.
(loop_vec_info::reduc_latch_slp_defs): Likewise.
* tree-vect-stmts.c (vect_transform_stmt): Remove vectorized
cycle PHI latch code.
* tree-vect-loop.c (maybe_set_vectorized_backedge_value): New
helper to set vectorized cycle PHI latch values.
(vect_transform_loop): Walk over all PHIs again after
vectorizing them, calling maybe_set_vectorized_backedge_value.
Call maybe_set_vectorized_backedge_value for each vectorized
stmt. Remove delayed update code.
* tree-vect-slp.c (vect_analyze_slp_instance): Initialize
SLP instance reduc_phis member.
(vect_schedule_slp): Set vectorized cycle PHI latch values.
* gfortran.dg/vect/pr96920.f90: New testcase.
* gcc.dg/vect/pr96920.c: Likewise.
Diffstat (limited to 'gcc/cp/expr.c')
0 files changed, 0 insertions, 0 deletions