re PR lto/48492 (LTO bootstrap failure in copy_constant)

	PR lto/48492
	* dwarf2out.c (dwarf2out_finish): Do not attach a DIE on the limbo list
	to a NULL parent.

From-SVN: r175533

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 9c89885d8a3a4d9938c0a5b2faf2e9fb6aab5762..e0abefef6e160403bb124def7bf013328ea84ec7 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2011-06-27  Eric Botcazou  <ebotcazou@adacore.com>
+
+       PR lto/48492
+       * dwarf2out.c (dwarf2out_finish): Do not attach a DIE on the limbo list
+       to a NULL parent.
+
 2011-06-27  Richard Guenther  <rguenther@suse.de>
 
        PR tree-optimization/49394

diff --git a/gcc/dwarf2out.c b/gcc/dwarf2out.c
index 6d58a00dd634d98453e2f899368a4feb1afbcb1a..63ac527c4af9dcd746afc05eb54bed6e7b7568df 100644 (file)
--- a/gcc/dwarf2out.c
+++ b/gcc/dwarf2out.c
@@ -25017,7 +25017,7 @@ dwarf2out_finish (const char *filename)
        {
          dw_die_ref origin = get_AT_ref (die, DW_AT_abstract_origin);
 
-         if (origin)
+         if (origin && origin->die_parent)
            add_child_die (origin->die_parent, die);
          else if (is_cu_die (die))
            ;