[gcc r12-10467] c++: array of PMF [PR113598]

[Jason Merrill via Gcc-cvs]

https://gcc.gnu.org/g:419b5e17eace9b6b985b9853db0dc1a5478375b6

commit r12-10467-g419b5e17eace9b6b985b9853db0dc1a5478375b6
Author: Jason Merrill <ja...@redhat.com>
Date:   Thu Jan 25 12:02:07 2024 -0500

    c++: array of PMF [PR113598]
    
    Here AGGREGATE_TYPE_P includes pointers to member functions, which is not
    what we want.  Instead we should use class||array, as elsewhere in the
    function.
    
            PR c++/113598
    
    gcc/cp/ChangeLog:
    
            * init.cc (build_vec_init): Don't use {} for PMF.
    
    gcc/testsuite/ChangeLog:
    
            * g++.dg/cpp0x/initlist-pmf2.C: New test.
    
    (cherry picked from commit 136a828754ff65079a834555582b49d54bd5bc64)

Diff:
---
 gcc/cp/init.cc                             |  4 +++-
 gcc/testsuite/g++.dg/cpp0x/initlist-pmf2.C | 12 ++++++++++++
 2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/gcc/cp/init.cc b/gcc/cp/init.cc
index 36a5d7c4849..a0a28f2a002 100644
--- a/gcc/cp/init.cc
+++ b/gcc/cp/init.cc
@@ -4760,7 +4760,9 @@ build_vec_init (tree base, tree maxindex, tree init,
         But for non-classes, that's the same as value-initialization.  */
       if (empty_list)
        {
-         if (cxx_dialect >= cxx11 && AGGREGATE_TYPE_P (type))
+         if (cxx_dialect >= cxx11
+             && (CLASS_TYPE_P (type)
+                 || TREE_CODE (type) == ARRAY_TYPE))
            {
              init = build_constructor (init_list_type_node, NULL);
            }
diff --git a/gcc/testsuite/g++.dg/cpp0x/initlist-pmf2.C 
b/gcc/testsuite/g++.dg/cpp0x/initlist-pmf2.C
new file mode 100644
index 00000000000..0fac8333c75
--- /dev/null
+++ b/gcc/testsuite/g++.dg/cpp0x/initlist-pmf2.C
@@ -0,0 +1,12 @@
+// PR c++/113598
+// { dg-additional-options -Wno-c++11-extensions }
+
+struct Cpu
+{
+  int op_nop();
+};
+typedef int(Cpu::*OpCode)();
+void f()
+{
+  new OpCode[256]{&Cpu::op_nop};
+}