[Bug libstdc++/95759] New: Sized deallocation function can not be matched

[hujiangping at cn dot fujitsu.com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95759

            Bug ID: 95759
           Summary: Sized deallocation function can not be matched
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libstdc++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: hujiangping at cn dot fujitsu.com
  Target Milestone: ---

Accroding to https://gcc.gnu.org/projects/cxx-status.html#cxx14, sized
dealloction function which is one of C++14 language features should have been
implemented from GCC 5. But, I cann't get the following replaced one matched.

---
#include <cstdlib>
#include <cassert>
#include <stdio.h>

void* operator new[](std::size_t sz){
    printf("new called\n");
    void* m = malloc(sz);
    assert(m);
    return m;
}

void operator delete[](void*p)noexcept {
    printf("usual deallocation called\n");
    return free(p);
}

void operator delete[](void*p, std::size_t size)noexcept {
    printf("sized deallocation called\n");
    return free(p);
}

void test() {
    delete[] new int[3];
}

int main() {
    test();
}
---

The gcc version and command used are as follow:
---
$ /home/extra_mnt/build_gcc/bin_gcc-master/bin/g++ --version
g++ (GCC) 11.0.0 20200519 (experimental)
Copyright (C) 2020 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

$ /home/extra_mnt/build_gcc/bin_gcc-master/bin/g++ --std=c++14 tmp.cpp &&
./a.out
new called
usual deallocation called
---

I guess if the sized deallocation funtion may not replaceable, or there is a
mis-matched bug?