Optimized branch predictions for strongly predicted compiler branches

摘要

A microprocessor is disclosed. The microprocessor includes a branch prediction table that has at least one branch entry. The at least one branch entry includes a prediction field to indicate whether a branch is predicted taken. The at least one branch entry also includes a history register that stores history information. Moreover, the branch prediction table includes a prediction update logic that updates the prediction field and the history register except when a branch is strongly predicted statically.