Function SetDenormalState

tensorflow/core/platform/denormal.cc:45–58

namespace port {

static void SetDenormalState(bool flush_zero_mode, bool denormals_zero_mode) {
  // For now, we flush denormals only on SSE 3.  Other architectures such as ARM
  // can be added as needed.

#ifdef DENORM_USE_INTRINSICS
  if (TestCPUFeature(SSE3)) {
    // Restore flags
    _MM_SET_FLUSH_ZERO_MODE(flush_zero_mode ? _MM_FLUSH_ZERO_ON
                                            : _MM_FLUSH_ZERO_OFF);
    _MM_SET_DENORMALS_ZERO_MODE(denormals_zero_mode ? _MM_DENORMALS_ZERO_ON
                                                    : _MM_DENORMALS_ZERO_OFF);
  }
#endif
}

static std::pair<bool, bool> GetDernormalState() {
  // For now, we flush denormals only on SSE 3.  Other architectures such as ARM