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Optimizer hangs on non-terminating while loop

Chris_C_1
Beginner
‎08-21-2017 01:28 PM
317 Views

Compilation of the following kernel loops indefinitely:

kernel void A() {
  int a = get_global_id(0);
  while (a < 512) {}
}

Passing argument -cl-opt-disable to clBuildProgram() prevents this.

Reproduced on:

  • /opt/intel/opencl-1.2-6.4.0.25/lib64/libintelocl.so
  • /opt/intel/opencl-1.2-4.4.0.117/lib64/libintelocl.so

 

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For more complete information about compiler optimizations, see our Optimization Notice.