From: Richard Biener <rguenther@suse.de>
Date: Wed, 17 Apr 2024 08:40:04 +0000 (+0200)
Subject: tree-optimization/114749 - reset partial vector decision for no-SLP retry
X-Git-Tag: basepoints/gcc-15~134
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=bf2b5231312e1cea45732cb8df6ffa2b2c9115b6;p=thirdparty%2Fgcc.git

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.
---

diff --git a/gcc/tree-vect-loop.cc b/gcc/tree-vect-loop.cc
index 431b3e9492c0..a6cf0a5546ce 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;
 }