[Bug c++/115007] New: [modules] ICE in maybe_clone_body when calling virtual destructor from instantiated template

[Bug c++/115007] New: [modules] ICE in maybe_clone_body when calling virtual destructor from instantiated template

[nshead at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115007

            Bug ID: 115007
           Summary: [modules] ICE in maybe_clone_body when calling virtual
                    destructor from instantiated template
           Product: gcc
           Version: 15.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: nshead at gcc dot gnu.org
            Blocks: 103524
  Target Milestone: ---

The following sample ICEs on trunk:


  // a.cpp
  module;
  struct S {
    virtual ~S() = default;
    virtual void f() = 0;
  };
  module M:a;
  S *p;
  template <typename T> void format(T) { p->~S(); }
  template void format(int);

  // m.cpp
  export module M;
  import :a;


'g++ -fmodules-ts -Wno-global-module -S a.cpp m.cpp' results in:

m.cpp: In destructor ‘S@M:a::~S()’:
m.cpp:2:11: internal compiler error: Segmentation fault
    2 | import :a;
      |           ^
0x1bad37f crash_signal
        ../../gcc/gcc/toplev.cc:319
0x7ffb375cc51f ???
        ./signal/../sysdeps/unix/sysv/linux/x86_64/libc_sigaction.c:0
0x1076395 maybe_clone_body(tree_node*)
        ../../gcc/gcc/cp/optimize.cc:705
0x11e00d9 expand_or_defer_fn_1(tree_node*)
        ../../gcc/gcc/cp/semantics.cc:5098
0x11e040b expand_or_defer_fn(tree_node*)
        ../../gcc/gcc/cp/semantics.cc:5133
0xf54666 c_parse_final_cleanups()
        ../../gcc/gcc/cp/decl2.cc:5362
0x1322ee7 c_common_parse_file()
        ../../gcc/gcc/c-family/c-opts.cc:1329


Referenced Bugs:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103524
[Bug 103524] [meta-bug] modules issue