Method and apparatus for supporting speculative memory optimizations

Method and apparatus for supporting speculative memory optimizations

A processor includes a store buffer to store store instructions to be processed to store data in main memory, a load buffer to store load instructions to be processed to load data from main memory, and a loop invariant code motion (LICM) protection structure coupled to the store buffer and the load...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Mekkat, Vineeth, Lee, Janghaeng, Ko, Hou-Jen, Zhang, Zhongying, Dechene, Mark, Faistl, John, Margulis, Oleg, Winkel, Sebastian
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Beschreibung
Zusammenfassung:A processor includes a store buffer to store store instructions to be processed to store data in main memory, a load buffer to store load instructions to be processed to load data from main memory, and a loop invariant code motion (LICM) protection structure coupled to the store buffer and the load buffer. The LPT tracks information to compare an address of a store or snoop microoperation with entries in the LICM and re-loads a load microoperation of a matching entry.