[Bug c++/122774] The compiler ICEs when compiling a file that mixes a module import with a traditional header include.

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122774

--- Comment #4 from Nathaniel Shead <nshead at gcc dot gnu.org> ---
(In reply to d7d1cd from comment #3)
> This example seems to demonstrate the same error, but is more concise:
>   $ cat header.h
>   #pragma once
>   struct Foo {};
> 
>   $ cat module.ixx
>   module;
>   #include "header.h"
>   export module M;
>   export Foo foo() { return {}; }
> 
>   $ cat main.cc
>   import M;
>   #include "header.h"
>   int main() {}
> 
> Here in the online compiler: https://godbolt.org/z/x5bdMrx39

Thanks, though that doesn't appear to reproduce the ICE, just the redeclaration
error (which is PR99000).