Beignet OpenCL 1.2 Bug

beignet-bug2.c

// Compile with
// gcc -O2 --std=gnu99 -lOpenCL -g -Wno-deprecated-declarations

#include <CL/cl.h>
#include <stdio.h>
#include <assert.h>

int
main()
{
    cl_platform_id platform_id = NULL;
    cl_uint num_platforms = 0;
    cl_int status = clGetPlatformIDs(1, &platform_id, &num_platforms);
    assert(status == CL_SUCCESS);

    cl_device_id device_id = NULL;
    cl_uint num_devices = 0;
    status = clGetDeviceIDs(platform_id, CL_DEVICE_TYPE_DEFAULT, 1,
                            &device_id, &num_devices);
    assert(status == CL_SUCCESS);
    cl_context context = clCreateContext(NULL, 1, &device_id,
                                         NULL, NULL, &status);
    assert(status == CL_SUCCESS);
    cl_command_queue queue = clCreateCommandQueue(context, device_id,
                                                  0, &status);
    assert(status == CL_SUCCESS);

    cl_event evt1;
    status = clEnqueueMarker(queue, &evt1);
    assert(status == CL_SUCCESS);
    cl_event evt2;
    status = clEnqueueBarrierWithWaitList(queue, 1, &evt1, &evt2);
    assert(status == CL_SUCCESS);
    status = clWaitForEvents(1, &evt2);
    assert(status == CL_SUCCESS);

    status = clFinish(queue);
    assert(status == CL_SUCCESS);

    clReleaseEvent(evt1);
    clReleaseEvent(evt2);
    clReleaseCommandQueue(queue);
    clReleaseContext(context);

    return 0;
}