From: Richard Biener <rguenther@suse.de>
Date: Wed, 15 Jul 2026 11:20:55 +0000 (+0200)
Subject: Improve dump when SLP fails to compute lane extraction insertion points
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=ab9d428a577b85cef3832bb92d6d3d0bb07e7ad5;p=thirdparty%2Fgcc.git

Improve dump when SLP fails to compute lane extraction insertion points

The following helps debugging.

	* tree-vect-slp.cc (vect_bb_slp_mark_live_stmts): Enhance
	dumping in the failure case.
---

diff --git a/gcc/tree-vect-slp.cc b/gcc/tree-vect-slp.cc
index ff11b392305..7abf0faa765 100644
--- a/gcc/tree-vect-slp.cc
+++ b/gcc/tree-vect-slp.cc
@@ -9082,7 +9082,8 @@ vect_bb_slp_mark_live_stmts (bb_vec_info bb_vinfo, slp_tree node,
 		    if (dump_enabled_p ())
 		      dump_printf_loc (MSG_MISSED_OPTIMIZATION, vect_location,
 				       "Cannot determine insertion place for "
-				       "lane extract\n");
+				       "lane extract of %T at node %p\n",
+				       DEF_FROM_PTR (def_p), (void *)node);
 		    can_insert = false;
 		    break;
 		  }