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From: "hubicka at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/103680] Jump threading and switch corrupts
 profile
Date: Wed, 28 Jun 2023 09:16:28 +0000
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X-Bugzilla-Component: tree-optimization
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D103680

Jan Hubicka <hubicka at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|                            |2023-06-28
             Status|UNCONFIRMED                 |NEW
     Ever confirmed|0                           |1

--- Comment #7 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
a simple testcase:
test (int i)
{
        if (__builtin_expect_with_probability (i > 5, 1, 0.6))
                foo ();
}
test2(int i)
{
        test (i);
        if (__builtin_expect_with_probability (i > 4, 1, 0.7))
                foo ();
}
this is can be updated quite easily, but we still fail.=