[Bug tree-optimization/90304] -O3 vectorization gets worse when code is inlined

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90304

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|-O3 vectorization gets      |-O3 vectorization gets
                   |worse when code is moved    |worse when code is inlined
                   |into main()                 |
           Keywords|                            |alias

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Testcase:
int* ptr();

int f()
{
    int*__restrict result = ptr();
    int* first = ptr();
    int* second = ptr();

    for (int i = 0; i < 1024; ++i)
        result[i] = first[i] * second[i];
}
__attribute__((noinline))
void func(int*__restrict result, int* first, int* second)
{
    for (int i = 0; i < 1024; ++i)
        result[i] = first[i] * second[i];
}

int g()
{
    func(ptr(), ptr(), ptr());
}

Notice func is vectorized while f is not.