Methods and apparatus to collect profile information

摘要

Methods and apparatus to collect profile information with respect to computer program block(s) are disclosed. A disclosed method collects profile information with respect to target code by predicating execution of profile collection code on a predicate register value; setting the predicate register value to a first predetermined value to permit execution of the profile information collection code to collect profile information with respect to the target code; and setting the predicate register value to a second predetermined value to prevent execution of the profile collection code.