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[PR c++/84593] ice on braced init with uninit ref field
- From: Alexandre Oliva <aoliva at redhat dot com>
- To: gcc-patches at gcc dot gnu dot org
- Date: Wed, 28 Feb 2018 09:08:38 -0300
- Subject: [PR c++/84593] ice on braced init with uninit ref field
- Authentication-results: sourceware.org; auth=none
Don't allow the initializer expr to be NULL in a ctor initializer
list, make it error_marker_node instead.
Regstrapped on x86_64- and i686-linux-gnu. Ok to install?
for gcc/cp/ChangeLog
PR c++/84593
* typeck2.c (process_init_constructor_record): Set NULL next
to error_marker_node.
for gcc/testsuite/ChangeLog
PR c++/84593
* g++.dg/cpp1y/pr84593.C: New.
---
gcc/cp/typeck2.c | 2 ++
gcc/testsuite/g++.dg/cpp1y/pr84593.C | 8 ++++++++
2 files changed, 10 insertions(+)
create mode 100644 gcc/testsuite/g++.dg/cpp1y/pr84593.C
diff --git a/gcc/cp/typeck2.c b/gcc/cp/typeck2.c
index 153b46cca775..8c2aa3ed55a5 100644
--- a/gcc/cp/typeck2.c
+++ b/gcc/cp/typeck2.c
@@ -1529,6 +1529,8 @@ process_init_constructor_record (tree type, tree init, int nested,
/* If this is a bitfield, now convert to the lowered type. */
if (type != TREE_TYPE (field))
next = cp_convert_and_check (TREE_TYPE (field), next, complain);
+ if (!next)
+ next = error_mark_node;
flags |= picflag_from_initializer (next);
CONSTRUCTOR_APPEND_ELT (v, field, next);
}
diff --git a/gcc/testsuite/g++.dg/cpp1y/pr84593.C b/gcc/testsuite/g++.dg/cpp1y/pr84593.C
new file mode 100644
index 000000000000..8aa869f19193
--- /dev/null
+++ b/gcc/testsuite/g++.dg/cpp1y/pr84593.C
@@ -0,0 +1,8 @@
+// PR c++/84593
+// { dg-do compile { target c++14 } }
+
+struct a {
+ int x;
+ int c = 0;
+ int &b;
+} c = {}; // { dg-error "uninitialized reference" }
--
Alexandre Oliva, freedom fighter http://FSFLA.org/~lxoliva/
You must be the change you wish to see in the world. -- Gandhi
Be Free! -- http://FSFLA.org/ FSF Latin America board member
Free Software Evangelist|Red Hat Brasil GNU Toolchain Engineer