[Bug ipa/83582] GCC is unable to fold the code of identical lambda-expressions

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83582

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |missed-optimization

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Case 1:
#include <algorithm>
int main()
{
    int arr[8];
    auto sort = [] (auto x, auto y) { return false; };
    std::sort(arr, arr + 8, sort);
    std::sort(arr, arr + 8, sort);
    std::sort(arr, arr + 8, sort);
    std::sort(arr, arr + 8, sort);
    std::sort(arr, arr + 8, sort);
    std::sort(arr, arr + 8, sort);
    std::sort(arr, arr + 8, sort);
    std::sort(arr, arr + 8, sort);
    std::sort(arr, arr + 8, sort);
}

Case 2:
#include <algorithm>
int main()
{
    int arr[8];

    std::sort(arr, arr + 8, [] (auto x, auto y) { return false; });
    std::sort(arr, arr + 8, [] (auto x, auto y) { return false; });
    std::sort(arr, arr + 8, [] (auto x, auto y) { return false; });
    std::sort(arr, arr + 8, [] (auto x, auto y) { return false; });
    std::sort(arr, arr + 8, [] (auto x, auto y) { return false; });
    std::sort(arr, arr + 8, [] (auto x, auto y) { return false; });
    std::sort(arr, arr + 8, [] (auto x, auto y) { return false; });
    std::sort(arr, arr + 8, [] (auto x, auto y) { return false; });
    std::sort(arr, arr + 8, [] (auto x, auto y) { return false; });
}