Predicting literal load values using literal load prediction tables, and related circuits, methods, and computer readable media

摘要

Predicting literal load values using a literal load prediction table, and related circuits, methods, and computer readable media are disclosed. In one aspect, the instruction processing circuit provides a literal load prediction table including one or more entries, each entry including an address and a literal load value. Upon detecting a literal load instruction in the instruction stream, the instruction processing circuit determines whether the literal load prediction table includes an entry with the address of the literal load instruction. If so, the instruction processing circuit provides the predictive literal load value stored in the entry to the at least one dependent instruction. The instruction processing circuit then determines whether the predictive literal load value matches the actual literal load value loaded by the literal load instruction. If there is a mismatch, the instruction processing circuit activates the prediction mis-recovery. At least one dependent instruction is reexecuted using the actual literal load value.