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authorJason Merrill <jason@redhat.com>2017-03-17 14:42:09 -0400
committerJason Merrill <jason@gcc.gnu.org>2017-03-17 14:42:09 -0400
commitc7ec585d78b25e45813c02f3371714dd72401c63 (patch)
treef50d65694be61c920a049bf106b0ac2293f71863
parent2da189b6ead100a2741fbc27abdad5bc479ac828 (diff)
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PR c++/80073 - C++17 ICE with virtual base.
* decl.c (xref_basetypes): Also check for indirect vbases. From-SVN: r246242
-rw-r--r--gcc/cp/ChangeLog5
-rw-r--r--gcc/cp/decl.c3
-rw-r--r--gcc/testsuite/g++.dg/init/vbase2.C8
3 files changed, 16 insertions, 0 deletions
diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index 089d388..a5c150a 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,3 +1,8 @@
+2017-03-17 Jason Merrill <jason@redhat.com>
+
+ PR c++/80073 - C++17 ICE with virtual base.
+ * decl.c (xref_basetypes): Also check for indirect vbases.
+
2017-03-16 Jason Merrill <jason@redhat.com>
* decl.c (start_enum): std::byte aliases anything.
diff --git a/gcc/cp/decl.c b/gcc/cp/decl.c
index 61ecf81..bf24e8b 100644
--- a/gcc/cp/decl.c
+++ b/gcc/cp/decl.c
@@ -13812,6 +13812,9 @@ xref_basetypes (tree ref, tree base_list)
if (max_vbases)
{
+ /* An aggregate can't have virtual base classes. */
+ CLASSTYPE_NON_AGGREGATE (ref) = true;
+
vec_alloc (CLASSTYPE_VBASECLASSES (ref), max_vbases);
if (max_dvbases)
diff --git a/gcc/testsuite/g++.dg/init/vbase2.C b/gcc/testsuite/g++.dg/init/vbase2.C
new file mode 100644
index 0000000..1711ea9
--- /dev/null
+++ b/gcc/testsuite/g++.dg/init/vbase2.C
@@ -0,0 +1,8 @@
+// PR c++/80073
+// { dg-do compile { target c++11 } }
+
+struct A {};
+
+struct B : virtual A {};
+
+struct C : B {} c {};