* [PATCH] tree-optimization/114749 - reset partial vector decision for no-SLP retry
@ 2024-04-17 9:25 Richard Biener
0 siblings, 0 replies; only message in thread
From: Richard Biener @ 2024-04-17 9:25 UTC (permalink / raw)
To: gcc-patches
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.
Bootstrapped on x86_64-unknown-linux-gnu, testing in progress.
Richard.
PR tree-optimization/114749
* tree-vect-loop.cc (vect_analyze_loop_2): Reset
LOOP_VINFO_USING_PARTIAL_VECTORS_P when re-trying without SLP.
---
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 431b3e9492c..a6cf0a5546c 100644
--- a/gcc/tree-vect-loop.cc
+++ b/gcc/tree-vect-loop.cc
@@ -3400,6 +3400,7 @@ 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;
}
--
2.35.3
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