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authorJason Merrill <jason@redhat.com>2011-10-19 18:29:15 -0400
committerJason Merrill <jason@gcc.gnu.org>2011-10-19 18:29:15 -0400
commit875bcfdbf412ba625cf9ee9e1bd6610c0ad5b5f8 (patch)
tree4c9775c1197e68fdedd21754444fa1abc3c19c9a /gcc/cp
parentf33fa066984c6f29eee20db130133354a5ec995c (diff)
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re PR c++/50793 (G++ doesn't value-initialize all members of non-trivial type in default argument)
PR c++/50793 * tree.c (bot_manip): Propagate AGGR_INIT_ZERO_FIRST. From-SVN: r180227
Diffstat (limited to 'gcc/cp')
-rw-r--r--gcc/cp/ChangeLog5
-rw-r--r--gcc/cp/tree.c8
2 files changed, 11 insertions, 2 deletions
diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index 3b5c14c..8e9bb4a 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,3 +1,8 @@
+2011-10-19 Jason Merrill <jason@redhat.com>
+
+ PR c++/50793
+ * tree.c (bot_manip): Propagate AGGR_INIT_ZERO_FIRST.
+
2011-10-19 Roland Stigge <stigge@antcom.de>
PR translation/49704
diff --git a/gcc/cp/tree.c b/gcc/cp/tree.c
index 75aa265..d023eb8 100644
--- a/gcc/cp/tree.c
+++ b/gcc/cp/tree.c
@@ -1879,8 +1879,12 @@ bot_manip (tree* tp, int* walk_subtrees, void* data)
tree u;
if (TREE_CODE (TREE_OPERAND (t, 1)) == AGGR_INIT_EXPR)
- u = build_cplus_new (TREE_TYPE (t), TREE_OPERAND (t, 1),
- tf_warning_or_error);
+ {
+ u = build_cplus_new (TREE_TYPE (t), TREE_OPERAND (t, 1),
+ tf_warning_or_error);
+ if (AGGR_INIT_ZERO_FIRST (TREE_OPERAND (t, 1)))
+ AGGR_INIT_ZERO_FIRST (TREE_OPERAND (u, 1)) = true;
+ }
else
u = build_target_expr_with_type (TREE_OPERAND (t, 1), TREE_TYPE (t),
tf_warning_or_error);