LOCAL AND GLOBAL BRANCH PREDICTION INFORMATION STORAGE

LOCAL AND GLOBAL BRANCH PREDICTION INFORMATION STORAGE

Embodiments of the invention provide an apparatus of storing branch prediction information. In one embodiment, an integrated circuit device includes a first table for storing local branch prediction information, a second table for storing global branch prediction information, and circuitry. The circ...

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1. Verfasser: LUICK, DAVID, ARNOLD
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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creator LUICK, DAVID, ARNOLD
description Embodiments of the invention provide an apparatus of storing branch prediction information. In one embodiment, an integrated circuit device includes a first table for storing local branch prediction information, a second table for storing global branch prediction information, and circuitry. The circuitry is configured to receive a branch instruction and store local branch prediction information for the branch instruction in the first table. The local branch prediction information includes a local predictability value for the local branch prediction information. The circuitry is further configured to store global branch prediction information for the branch instruction in the second table only if the local predictability value is below a threshold value of predictability.
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In one embodiment, an integrated circuit device includes a first table for storing local branch prediction information, a second table for storing global branch prediction information, and circuitry. The circuitry is configured to receive a branch instruction and store local branch prediction information for the branch instruction in the first table. The local branch prediction information includes a local predictability value for the local branch prediction information. 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In one embodiment, an integrated circuit device includes a first table for storing local branch prediction information, a second table for storing global branch prediction information, and circuitry. The circuitry is configured to receive a branch instruction and store local branch prediction information for the branch instruction in the first table. The local branch prediction information includes a local predictability value for the local branch prediction information. The circuitry is further configured to store global branch prediction information for the branch instruction in the second table only if the local predictability value is below a threshold value of predictability.</abstract><oa>free_for_read</oa></addata></record>
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subjects CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
title LOCAL AND GLOBAL BRANCH PREDICTION INFORMATION STORAGE
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