From: Martin Liska <mliska@suse.cz>
Date: Fri, 23 Aug 2019 11:41:32 +0000 (+0200)
Subject: Backport r274503
X-Git-Tag: releases/gcc-9.3.0~693
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=009fed7825868ac3796771050d6953c2b45767e1;p=thirdparty%2Fgcc.git

Backport r274503

2019-08-23  Martin Liska  <mliska@suse.cz>

	Backport from mainline
	2019-08-15  Martin Liska  <mliska@suse.cz>

	* cgraph.c (cgraph_node::verify_node): Verify origin, nested
	and next_nested.

From-SVN: r274852
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index fc42afe4079f..9d3214e02927 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,11 @@
+2019-08-23  Martin Liska  <mliska@suse.cz>
+
+	Backport from mainline
+	2019-08-15  Martin Liska  <mliska@suse.cz>
+
+	* cgraph.c (cgraph_node::verify_node): Verify origin, nested
+	and next_nested.
+
 2019-08-23  Martin Liska  <mliska@suse.cz>
 
 	Backport from mainline
diff --git a/gcc/cgraph.c b/gcc/cgraph.c
index db4c9c747b9e..d9e7353bd7bf 100644
--- a/gcc/cgraph.c
+++ b/gcc/cgraph.c
@@ -3449,6 +3449,30 @@ cgraph_node::verify_node (void)
 	  e->aux = 0;
 	}
     }
+
+  if (nested != NULL)
+    {
+      for (cgraph_node *n = nested; n != NULL; n = n->next_nested)
+	{
+	  if (n->origin == NULL)
+	    {
+	      error ("missing origin for a node in a nested list");
+	      error_found = true;
+	    }
+	  else if (n->origin != this)
+	    {
+	      error ("origin points to a different parent");
+	      error_found = true;
+	      break;
+	    }
+	}
+    }
+  if (next_nested != NULL && origin == NULL)
+    {
+      error ("missing origin for a node in a nested list");
+      error_found = true;
+    }
+
   if (error_found)
     {
       dump (stderr);