Major changes in this patch are made to improve the debug output mode of
the compiler.

Linux kernel behaviour is not affected as the change only applies to
the compiler which is not shipped in the Linux kernel.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>