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authorJason Merrill <jason@redhat.com>2014-01-29 15:54:21 -0500
committerJason Merrill <jason@gcc.gnu.org>2014-01-29 15:54:21 -0500
commit434e6c8a7c07fef86ddb2347b06017fd469aebf7 (patch)
tree2d7813a44b04c2cef839d14bbd20af18d0e4c901
parent1200933cccdd1bbab4758560f36809f46434294a (diff)
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re PR c++/58466 (ICE in cxx_eval_constant_expression)
PR c++/58466 * pt.c (unify_pack_expansion): Call expand_template_argument_pack. From-SVN: r207283
-rw-r--r--gcc/cp/ChangeLog3
-rw-r--r--gcc/cp/pt.c3
-rw-r--r--gcc/testsuite/g++.dg/cpp0x/variadic147.C10
3 files changed, 16 insertions, 0 deletions
diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index 723ce95..e24a9ae 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,5 +1,8 @@
2014-01-29 Jason Merrill <jason@redhat.com>
+ PR c++/58466
+ * pt.c (unify_pack_expansion): Call expand_template_argument_pack.
+
PR c++/59956
* friend.c (do_friend): Pass the TEMPLATE_DECL to add_friend if we
have a friend template in a class template.
diff --git a/gcc/cp/pt.c b/gcc/cp/pt.c
index 943255d..9be9171 100644
--- a/gcc/cp/pt.c
+++ b/gcc/cp/pt.c
@@ -16897,6 +16897,9 @@ unify_pack_expansion (tree tparms, tree targs, tree packed_parms,
tree pattern = PACK_EXPANSION_PATTERN (parm);
tree pack, packs = NULL_TREE;
int i, start = TREE_VEC_LENGTH (packed_parms) - 1;
+
+ packed_args = expand_template_argument_pack (packed_args);
+
int len = TREE_VEC_LENGTH (packed_args);
/* Determine the parameter packs we will be deducing from the
diff --git a/gcc/testsuite/g++.dg/cpp0x/variadic147.C b/gcc/testsuite/g++.dg/cpp0x/variadic147.C
new file mode 100644
index 0000000..7f606d8
--- /dev/null
+++ b/gcc/testsuite/g++.dg/cpp0x/variadic147.C
@@ -0,0 +1,10 @@
+// PR c++/58466
+// { dg-require-effective-target c++11 }
+
+template<char, char...> struct A;
+
+template<typename> struct B;
+
+template<char... C> struct B<A<C...>> {};
+
+B<A<'X'>> b;