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| author | Richard Biener <rguenther@suse.de> | 2025-11-18 09:59:54 +0100 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2025-11-18 12:40:54 +0100 |
| commit | facb92812a4ec5c60ef783db6d02c35fa6a21e16 (patch) | |
| tree | 3ab5b52a26267a67a831263979f30df03fd382e0 /libjava/classpath/java/io/FileNotFoundException.java | |
| parent | 596b4fde343b4e89ba627b3c1f02c09b50307e57 (diff) | |
tree-optimization/122723 - masking of .COND_ADD reductions
The following fixes loop masking of .COND_ADD reductions when
we decide to reduce multiple lanes to one, thus go through
vect_transform_reduction. The first issue is in
vect_reduction_update_partial_vector_usage which does not handle
incoming .COND_ADD well and fails to compute 'cond_fn' in this
case, disabling masking. The second issue is that
vect_transform_reduction does not implement the masked but
not mask-by-cond case for any .COND_* operation. The following
should fix both.
The testcases verify runtime in vect.exp and vectorization support
in the i386 target section for the combinations of -O3, -Ofast
plus masked vs. non-masked epilogues.
PR tree-optimization/122723
* tree-vect-loop.cc (vect_reduction_update_partial_vector_usage):
Handle incoming .COND_* operation.
(vect_transform_reduction): Likewise. Handle .COND_*
operation when not using COND_EXPR masking in a masked loop.
* gcc.dg/vect/vect-reduc-cond-add-1.c: New generic functional
testcase.
* gcc.target/i386/vect-epilogues-6.c: New testcase.
* gcc.target/i386/vect-epilogues-7.c: Likewise.
* gcc.target/i386/vect-epilogues-8.c: Likewise.
* gcc.target/i386/vect-epilogues-9.c: Likewise.
Diffstat (limited to 'libjava/classpath/java/io/FileNotFoundException.java')
0 files changed, 0 insertions, 0 deletions