From: Richard Biener <rguenther@suse.de>
Date: Fri, 11 Sep 2020 11:51:58 +0000 (+0200)
Subject: tree-optimization/97020 - account SLP cost in loop vect again
X-Git-Tag: basepoints/gcc-12~5109
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8d3767c30240c901a493d82d9d20f306b2f0152d;p=thirdparty%2Fgcc.git

tree-optimization/97020 - account SLP cost in loop vect again

The previous re-org made the cost of SLP vector stmts in loop
vectorization ignored.  The following rectifies this mistake.

2020-09-11  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/97020
	* tree-vect-slp.c (vect_slp_analyze_operations): Apply
	SLP costs when doing loop vectorization.
---

diff --git a/gcc/tree-vect-slp.c b/gcc/tree-vect-slp.c
index 519cd6a72541..15912515caae 100644
--- a/gcc/tree-vect-slp.c
+++ b/gcc/tree-vect-slp.c
@@ -3163,8 +3163,15 @@ vect_slp_analyze_operations (vec_info *vinfo)
 	    visited.add (*x);
 	  i++;
 
-	  /* Remember the SLP graph entry cost for later.  */
-	  instance->cost_vec = cost_vec;
+	  /* For BB vectorization remember the SLP graph entry
+	     cost for later.  */
+	  if (is_a <bb_vec_info> (vinfo))
+	    instance->cost_vec = cost_vec;
+	  else
+	    {
+	      add_stmt_costs (vinfo, vinfo->target_cost_data, &cost_vec);
+	      cost_vec.release ();
+	    }
 	}
     }