* ggc-page.c (poison_pages): Don't be overzealous.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@30209 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 8 insertions, 0 deletions

diff --git a/gcc/ggc-page.c b/gcc/ggc-page.c
index 54f762f9533..f034a4fb47f 100644
--- a/gcc/ggc-page.c
+++ b/gcc/ggc-page.c
@@ -1021,6 +1021,14 @@ poison_pages ()
       for (p = G.pages[order]; p != NULL; p = p->next)
 	{
 	  size_t i;
+
+	  if (p->context_depth != G.context_depth)
+	    /* Since we don't do any collection for pages in pushed
+	       contexts, there's no need to do any poisoning.  And
+	       besides, the IN_USE_P array isn't valid until we pop
+	       contexts.  */
+	    continue;
+
 	  for (i = 0; i < num_objects; i++)
 	    {
 	      size_t word, bit;