[Bug tree-optimization/80520] [7/8 Regression] Performance regression from missing if-conversion

[krister.walfridsson at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80520

--- Comment #3 from krister.walfridsson at gmail dot com ---
You can see the issue in the generated code with

  int foo(std::mt19937 &gen)
  {
    std::uniform_int_distribution<int> dist(0,99);
    return dist(gen);
  }

too. I.e. it is not just an artifact of the uninteresting use in the
benchmarking loop.