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From: "jorg.brown at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/114913] "verify_gimple failed" due to addition of
 two constexpr strings
Date: Wed, 01 May 2024 22:55:53 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D114913

--- Comment #4 from Jorg Brown <jorg.brown at gmail dot com> ---
Oddly, if I move the reference to HelloWorld into a separate routine, it wo=
rks
(you can comment out a() and ba() returns what it should, on gcc 15.0)

struct strt {
  const char *ptr =3D &data;
  char data =3D '\0';

  constexpr strt() {}
  constexpr strt(const strt &__str) {}
};
constexpr strt f() { return {}; }
constexpr strt HelloWorld =3D f();

// This works fine...
const strt &b() { return HelloWorld; }
const char *ba() { return b().ptr; }

// This causes the verify_gimple failure, on gcc 15
const char *a() { return HelloWorld.ptr; }

=3D - =3D - =3D - =3D - =3D - =3D - =3D

Also odd is that the above code (including a()) works fine on gcc 10.1 thro=
ugh
13.2.  As seen https://godbolt.org/z/z3qnosG37=