From: Richard Biener <rguenther@suse.de>
Date: Mon, 20 Sep 2021 09:17:49 +0000 (+0200)
Subject: vect alignmet enhance TLC
X-Git-Tag: basepoints/gcc-13~4632
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=f55c8db019af13851ba92cd39086658e39800acd;p=thirdparty%2Fgcc.git

vect alignmet enhance TLC

This properly marks the loop as for a runtime alias peel rather
than (pointlessly) going through DR_MISALIGNMENT.

2021-09-20  Richard Biener  <rguenther@suse.de>

	* tree-vect-data-refs.c (vect_enhance_data_refs_alignment):
	Store -1 for runtime alias peeling iterations.
---

diff --git a/gcc/tree-vect-data-refs.c b/gcc/tree-vect-data-refs.c
index 967d43726db8..1a7abe3ff29a 100644
--- a/gcc/tree-vect-data-refs.c
+++ b/gcc/tree-vect-data-refs.c
@@ -2268,8 +2268,7 @@ vect_enhance_data_refs_alignment (loop_vec_info loop_vinfo)
           if (npeel)
             LOOP_VINFO_PEELING_FOR_ALIGNMENT (loop_vinfo) = npeel;
           else
-            LOOP_VINFO_PEELING_FOR_ALIGNMENT (loop_vinfo)
-	      = DR_MISALIGNMENT (dr0_info);
+	    LOOP_VINFO_PEELING_FOR_ALIGNMENT (loop_vinfo) = -1;
 	  SET_DR_MISALIGNMENT (dr0_info, 0);
 	  if (dump_enabled_p ())
             {