Function GetXCR0EAX

tensorflow/core/platform/cpu_info.cc:60–60

Visual Studio defines a builtin function, so use that if possible.

#ifdef PLATFORM_WINDOWS
// Visual Studio defines a builtin function, so use that if possible.
int GetXCR0EAX() { return _xgetbv(0); }
#else
int GetXCR0EAX() {
  int eax, edx;