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authorJason Merrill <jason@redhat.com>2020-05-27 10:27:25 -0400
committerJason Merrill <jason@redhat.com>2020-05-27 13:56:56 -0400
commit6efa97ea1d2fe6df1fbb9df78faaa2248a8618d7 (patch)
tree91fc64c10ba4920564cb1170a6e5937d7194b45a /gcc/cp
parenta7fd43c38f7469a3ef5ee30e889d60e1376d4dfc (diff)
c++: Handle multiple aggregate overloads [PR95319].
Here, when considering the two 'insert' overloads, we look for aggregate conversions from the same initializer-list to B<3> or initializer_list<B<3>>. But since my fix for reshape_init overhead on the PR14179 testcase we reshaped the initializer-list directly, leading to an error when we then tried to reshape it differently for the second overload. gcc/cp/ChangeLog: PR c++/95319 * decl.c (reshape_init_array_1): Don't reuse in overload context. gcc/testsuite/ChangeLog: PR c++/95319 * g++.dg/cpp0x/initlist-array12.C: New test.
Diffstat (limited to 'gcc/cp')
-rw-r--r--gcc/cp/decl.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/gcc/cp/decl.c b/gcc/cp/decl.c
index 5476965996b..56571e39570 100644
--- a/gcc/cp/decl.c
+++ b/gcc/cp/decl.c
@@ -6029,8 +6029,10 @@ reshape_init_array_1 (tree elt_type, tree max_index, reshape_iter *d,
/* The initializer for an array is always a CONSTRUCTOR. If this is the
outermost CONSTRUCTOR and the element type is non-aggregate, we don't need
- to build a new one. */
+ to build a new one. But don't reuse if not complaining; if this is
+ tentative, we might also reshape to another type (95319). */
bool reuse = (first_initializer_p
+ && (complain & tf_error)
&& !CP_AGGREGATE_TYPE_P (elt_type)
&& !TREE_SIDE_EFFECTS (first_initializer_p));
if (reuse)