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From: "mital at mitalashok dot co.uk" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/114937] [11 regression] -ftree-vrp optimizes
 out range check before conditional increment
Date: Fri, 03 May 2024 14:21:17 +0000
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X-Bugzilla-Component: tree-optimization
X-Bugzilla-Version: 11.4.0
X-Bugzilla-Keywords: wrong-code
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D114937

--- Comment #3 from Mital Ashok <mital at mitalashok dot co.uk> ---
My real code looks more like:

void sat_inc(int& y) {
    if (y < __INT_MAX__)
        ++y;
}

template<typename... F>
void f(int& x, F&&... functions) {
    int copy =3D x;
    (functions(copy), ...);
    if (copy > x)
        x =3D copy;
}

void g(int& x) {
    f(x, sat_inc);
}

... Where `g(x)` became `++x` unconditionally=