Apparatus And Method For Memory Alias Disambiguation Training

A method, comprising:

• decoding, by a decoder, sequences of instructions into sequences of microoperations (uops), including a plurality of load uops and a plurality of store uops;
• executing, by memory execution circuitry, the plurality of load uops to load data from a memory subsystem and to execute the plurality of store uops to store data to the memory subsystem;
• and
• making a prediction, by memory alias disambiguation (MAD) prediction circuitry, as to whether a first load uop of the plurality of load uops can be executed prior to execution of a first one or more store uops of the plurality of store uops without causing a conflict, wherein the prediction is to be made based on first prediction circuitry when a first confidence value indicated by the first prediction circuitry is above a threshold and is to be made based on second prediction circuitry when the first confidence value is at or below the threshold.

A machine-readable medium having program code stored thereon which, when executed by a machine, causes the machine to perform operations, comprising:

• decoding, by a decoder, sequences of instructions into sequences of microoperations (uops), including a plurality of load uops and a plurality of store uops;
• executing, by memory execution circuitry, the plurality of load uops to load data from a memory subsystem and to execute the plurality of store uops to store data to the memory subsystem;
• and
• making a prediction, by memory alias disambiguation (MAD) prediction circuitry, as to whether a first load uop of the plurality of load uops can be executed prior to execution of a first one or more store uops of the plurality of store uops without causing a conflict, wherein the prediction is to be made based on first prediction circuitry when a first confidence value indicated by the first prediction circuitry is above a threshold and is to be made based on second prediction circuitry when the first confidence value is at or below the threshold.