On 9/20/22 17:05, Marek Polacek wrote:
We ICE in the code added in r12-7117: type_build_dtor_call gets
the error_mark_node because the type of 'prev' wasn't declared.
Bootstrapped/regtested on x86_64-pc-linux-gnu, ok for trunk?
OK.
PR c++/106983
gcc/cp/ChangeLog:
* typeck2.cc (split_nonconstant_init_1): Check TYPE_P.
gcc/testsuite/ChangeLog:
* g++.dg/other/error36.C: New test.
---
gcc/cp/typeck2.cc | 2 +-
gcc/testsuite/g++.dg/other/error36.C | 13 +++++++++++++
2 files changed, 14 insertions(+), 1 deletion(-)
create mode 100644 gcc/testsuite/g++.dg/other/error36.C
diff --git a/gcc/cp/typeck2.cc b/gcc/cp/typeck2.cc
index 688e9c15326..75fd0e2a9bf 100644
--- a/gcc/cp/typeck2.cc
+++ b/gcc/cp/typeck2.cc
@@ -597,7 +597,7 @@ split_nonconstant_init_1 (tree dest, tree init, bool last,
if (prev == field_index)
break;
tree ptype = TREE_TYPE (prev);
- if (type_build_dtor_call (ptype))
+ if (TYPE_P (ptype) && type_build_dtor_call (ptype))
{
tree pcref = build3 (COMPONENT_REF, ptype, dest, prev,
NULL_TREE);
diff --git a/gcc/testsuite/g++.dg/other/error36.C
b/gcc/testsuite/g++.dg/other/error36.C
new file mode 100644
index 00000000000..556287816fd
--- /dev/null
+++ b/gcc/testsuite/g++.dg/other/error36.C
@@ -0,0 +1,13 @@
+// PR c++/106983
+// { dg-do compile { target c++20 } }
+
+typedef unsigned long long A;
+typedef union
+{
+ struct B s; // { dg-error "incomplete" }
+ A a;
+} U;
+void f (A x, unsigned int b)
+{
+ const U y = {.a = x};
+}
base-commit: be60aa5b608b5f09fadfeff852a46589ac311a42