SYSTEM AND METHOD OF USING SPECULATIVE SOURCE OPERANDS IN ORDER TO BYPASS LOAD/STORE OPERATIONS

摘要

A system may include a scheduler (118) and an execution core (124). The scheduler includes an entry (522) allocated to an operation. The entry includes a non-speculative tag (512) and a speculative tag (524), and both the non-speculative tag and the speculative tag are associated with a first operand of the operation. The scheduler is configured to issue the operation in response to a data value identified by the speculative tag being available. The execution core may be configured to execute the operation using the data value identified by the speculative tag. The scheduler may be configured to reissue the operation if the non-speculative tag appears on a result bus (130).