From: Richard Biener <rguenther@suse.de>
Date: Wed, 30 Nov 2022 11:03:56 +0000 (+0100)
Subject: Improve uninit diagnostic dumps
X-Git-Tag: basepoints/gcc-14~2800
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2792cb50f55529e1737461e032ed13e7f04f73d2;p=thirdparty%2Fgcc.git

Improve uninit diagnostic dumps

The following dumps the edge a use is uninitialized in a PHI.

	* tree-ssa-uninit.cc (find_uninit_use): Dump the edge for a
	PHI node.
---

diff --git a/gcc/tree-ssa-uninit.cc b/gcc/tree-ssa-uninit.cc
index bf2e50511af1..7fbc384f2d4c 100644
--- a/gcc/tree-ssa-uninit.cc
+++ b/gcc/tree-ssa-uninit.cc
@@ -1249,8 +1249,8 @@ find_uninit_use (gphi *phi, unsigned uninit_opnds, int *bb_to_rpo)
 
 	  if (dump_file && (dump_flags & TDF_DETAILS))
 	    {
-	      fprintf (dump_file, "Found unguarded use in bb %u: ",
-		       use_bb->index);
+	      fprintf (dump_file, "Found unguarded use on edge %u -> %u: ",
+		       e->src->index, e->dest->index);
 	      print_gimple_stmt (dump_file, use_stmt, 0);
 	    }
 	  /* Found a phi use that is not guarded, mark the phi_result as