[Bug tree-optimization/95423] Failure to optimize separated multiplications by x and square of x

gabravier at gmail dot com gcc-bugzilla@gcc.gnu.org
Fri May 29 20:01:23 GMT 2020


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95423

--- Comment #1 from Gabriel Ravier <gabravier at gmail dot com> ---
I've hit a similar thing with this function :

int f(int x)
{
    return (x * x * x) - (3 * x) - 1;
}

Which can be optimized to `return (((x * x) - 3) * x) - 1;`, but isn't


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