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* [gcc r13-8684] tree-optimization/114749 - reset partial vector decision for no-SLP retry
@ 2024-05-03 13:55 Richard Biener
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From: Richard Biener @ 2024-05-03 13:55 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:704b15e277a8792ac4cd6008ee08bec4b047a3e6
commit r13-8684-g704b15e277a8792ac4cd6008ee08bec4b047a3e6
Author: Richard Biener <rguenther@suse.de>
Date: Wed Apr 17 10:40:04 2024 +0200
tree-optimization/114749 - reset partial vector decision for no-SLP retry
The following makes sure to reset LOOP_VINFO_USING_PARTIAL_VECTORS_P
to its default of false when re-trying without SLP as otherwise
analysis may run into bogus asserts.
PR tree-optimization/114749
* tree-vect-loop.cc (vect_analyze_loop_2): Reset
LOOP_VINFO_USING_PARTIAL_VECTORS_P when re-trying without SLP.
(cherry picked from commit bf2b5231312e1cea45732cb8df6ffa2b2c9115b6)
Diff:
---
gcc/tree-vect-loop.cc | 1 +
1 file changed, 1 insertion(+)
diff --git a/gcc/tree-vect-loop.cc b/gcc/tree-vect-loop.cc
index 73caeb283e3..8bb2e3ff1c8 100644
--- a/gcc/tree-vect-loop.cc
+++ b/gcc/tree-vect-loop.cc
@@ -2957,6 +2957,7 @@ again:
LOOP_VINFO_VERSIONING_THRESHOLD (loop_vinfo) = 0;
LOOP_VINFO_CAN_USE_PARTIAL_VECTORS_P (loop_vinfo)
= saved_can_use_partial_vectors_p;
+ LOOP_VINFO_USING_PARTIAL_VECTORS_P (loop_vinfo) = false;
goto start_over;
}
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