[Bug c++/120350] New: [modules] address taken but ‘TREE_ADDRESSABLE’ bit not set for imported inline ref of typeid

[nshead at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120350

            Bug ID: 120350
           Summary: [modules] address taken but ‘TREE_ADDRESSABLE’ bit not
                    set for imported inline ref of typeid
           Product: gcc
           Version: 16.0
            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: ---

Consider:

  // a.cpp
  module;
  #include <typeinfo>
  export module M;
  struct S {};
  export inline auto& x = typeid(S);

  // b.cpp
  import M;
  int main() { x == x; }

$ g++ -fmodules -S a.cpp b.cpp

b.cpp: In function ‘int main()’:
b.cpp:2:5: error: address taken but ‘TREE_ADDRESSABLE’ bit not set
    2 | int main() {
      |     ^~~~
x.0_1 = &_ZTIW1M1S;
b.cpp:2:5: error: address taken but ‘TREE_ADDRESSABLE’ bit not set
x.1_2 = &_ZTIW1M1S;
b.cpp:2:5: internal compiler error: ‘verify_gimple’ failed
0x3d7f97f internal_error(char const*, ...)
        ../../gcc/gcc/diagnostic-global-context.cc:517
0x1df90b7 verify_gimple_in_seq(gimple*, bool)
        ../../gcc/gcc/tree-cfg.cc:5350
0x190cf3a gimplify_body(tree_node*, bool)
        ../../gcc/gcc/gimplify.cc:20916
0x190d479 gimplify_function_tree(tree_node*)
        ../../gcc/gcc/gimplify.cc:21042
0x1618b64 cgraph_node::analyze()
        ../../gcc/gcc/cgraphunit.cc:689
0x161b055 analyze_functions
        ../../gcc/gcc/cgraphunit.cc:1265
0x161e6e1 symbol_table::finalize_compilation_unit()
        ../../gcc/gcc/cgraphunit.cc:2574
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.


Referenced Bugs:

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