DEPENDENT INSTRUCTION SUPPRESSION

摘要

A method includes suppressing execution of at least one dependent instruction of a first instruction by a processor responsive to an invalid status of an ancestor load instruction associated with the first instruction. A processor includes an instruction pipeline having an execution unit to execute instructions, a load store unit for retrieving data from a memory hierarchy, and a scheduler unit. The scheduler unit selects for execution in the execution unit a first load instruction having at least one dependent instruction linked to the first load instruction for data forwarding from the load store unit and suppresses execution of a second dependent instruction of the first dependent instruction responsive to an invalid status of the first load instruction.

主权项

1. A method comprising:
suppressing execution of at least one dependent instruction of a first instruction by a processor responsive to an invalid status of an ancestor load instruction associated with the first instruction.