From: Jan Hubicka <jh@suse.cz>
Date: Mon, 31 Oct 2005 21:07:29 +0000 (+0100)
Subject: re PR middle-end/24093 (cgraph exhausts virtual memory building 197.parser with ... 
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=d63f0fe58ad1702b1efbf8bafa83266755c889aa;p=gcc.git

re PR middle-end/24093 (cgraph exhausts virtual memory building 197.parser with -profile-use -O3)


	PR middle-end/24093
	* cgraph.c (cgraph_clone_edge, cgraph_clone_node): Watch negative

From-SVN: r106291
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 7f69964ea4c..17a48a278a5 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,8 @@
 2005-10-31  Jan Hubicka  <jh@suse.cz>
 
+	PR middle-end/24093
+	* cgraph.c (cgraph_clone_edge, cgraph_clone_node): Watch negative
+
 	PR target/20928
 	* i386.c (legitimize_pic_address): Deal with large immediates.
 
diff --git a/gcc/cgraph.c b/gcc/cgraph.c
index 32fbe309739..33eb1fe7d2f 100644
--- a/gcc/cgraph.c
+++ b/gcc/cgraph.c
@@ -895,7 +895,11 @@ cgraph_clone_edge (struct cgraph_edge *e, struct cgraph_node *n,
 
   new->inline_failed = e->inline_failed;
   if (update_original)
-    e->count -= new->count;
+    {
+      e->count -= new->count;
+      if (e->count < 0)
+	e->count = 0;
+    }
   return new;
 }
 
@@ -931,7 +935,11 @@ cgraph_clone_node (struct cgraph_node *n, gcov_type count, int loop_nest,
   else
     count_scale = 0;
   if (update_original)
-    n->count -= count;
+    {
+      n->count -= count;
+      if (n->count < 0)
+	n->count = 0;
+    }
 
   for (e = n->callees;e; e=e->next_callee)
     cgraph_clone_edge (e, new, e->call_stmt, count_scale, loop_nest,