Merge DECL_PRESERVE_P for C++.

2010-02-22 Mike Stump <mikestump@comcast.net> PR c++/43125 * decl.c (duplicate_decls): Merge DECL_PRESERVE_P. From-SVN: r156977

Merge DECL_PRESERVE_P for C++.
2010-02-22 Mike Stump <mikestump@comcast.net> PR c++/43125 * decl.c (duplicate_decls): Merge DECL_PRESERVE_P. From-SVN: r156977
3a7ba040 · Mike Stump · H.J. Lu · 38bddaf2 · 3a7ba040 · 3a7ba040
Commit 3a7ba040 authored Feb 22, 2010 by Mike Stump Committed by H.J. Lu Feb 22, 2010
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--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
+2010-02-22  Mike Stump  <mikestump@comcast.net>
+
+	PR c++/43125
+	* decl.c (duplicate_decls): Merge DECL_PRESERVE_P.
+
 2010-02-21  Manuel López-Ibáñez  <manu@gcc.gnu.org>

 	PR c++/23510

--- a/gcc/cp/decl.c
+++ b/gcc/cp/decl.c
@@ -2093,6 +2093,10 @@ duplicate_decls (tree newdecl, tree olddecl, bool newdecl_is_friend)
    TREE_USED (newdecl) = 1;
  else if (TREE_USED (newdecl))
    TREE_USED (olddecl) = 1;
+  if (DECL_PRESERVE_P (olddecl))
+    DECL_PRESERVE_P (newdecl) = 1;
+  else if (DECL_PRESERVE_P (newdecl))
+    DECL_PRESERVE_P (olddecl) = 1;

  if (TREE_CODE (newdecl) == FUNCTION_DECL)
    {