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From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/107310] [12/13 Regression] "warning: control reaches end of
 non-void function" with a throw under a trivially-true conditional since
 r12-5638-ga3e75c1491cd2d50
Date: Wed, 16 Nov 2022 16:35:39 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D107310

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jakub at gcc dot gnu.org

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
This is similar to C:
void bar (int *x);
__attribute__((noreturn)) void baz (void);

int
foo (void)
{
  int a __attribute__((cleanup (bar)));
  if (1)
    baz ();
}
on which we were at -O0 warning already in 4.7, haven't tried older compile=
rs.
In C we optimizing the if (0) and if (1) conditions at genericization time,
only in C++ we were and now we no longer do.=