#version 430 core
#extension GL_EXT_split_barrier : enable

float f;

void fooBarrier1()
{
    controlBarrierArrive();
    controlBarrierWait();
}

void fooBarrier2()
{
    uint i = 0;
    for (i = 0; i < 16; ++i) {
      controlBarrierArrive();
      controlBarrierWait();
    }
}

void fooBarrier3()
{
    bool cond = f > 0.0f;
    if (cond) {
        controlBarrierArrive();
    }
    if (cond) {
        controlBarrierWait();
    }
}

void main()
{
    fooBarrier1();
    fooBarrier2();
    fooBarrier3();
}