DE602006017174D1 - Unterdrückung der aktualisierung eines zweigverlaufsregisters durch schleifenbeendende zweige - Google Patents

Unterdrückung der aktualisierung eines zweigverlaufsregisters durch schleifenbeendende zweige

Info

Publication number
DE602006017174D1
DE602006017174D1 DE602006017174T DE602006017174T DE602006017174D1 DE 602006017174 D1 DE602006017174 D1 DE 602006017174D1 DE 602006017174 T DE602006017174 T DE 602006017174T DE 602006017174 T DE602006017174 T DE 602006017174T DE 602006017174 D1 DE602006017174 D1 DE 602006017174D1
Authority
DE
Germany
Prior art keywords
branches
branch
suppression
wearing
update
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
DE602006017174T
Other languages
English (en)
Inventor
Bohuslav Rychlik
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qualcomm Inc
Original Assignee
Qualcomm Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of DE602006017174D1 publication Critical patent/DE602006017174D1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
    • G06F9/32—Address formation of the next instruction, e.g. by incrementing the instruction counter
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
    • G06F9/38—Concurrent instruction execution, e.g. pipeline or look ahead
    • G06F9/3802—Instruction prefetching
    • G06F9/3804—Instruction prefetching for branches, e.g. hedging, branch folding
    • G06F9/3806—Instruction prefetching for branches, e.g. hedging, branch folding using address prediction, e.g. return stack, branch history buffer
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
    • G06F9/32—Address formation of the next instruction, e.g. by incrementing the instruction counter
    • G06F9/322—Address formation of the next instruction, e.g. by incrementing the instruction counter for non-sequential address
    • G06F9/325—Address formation of the next instruction, e.g. by incrementing the instruction counter for non-sequential address for loops, e.g. loop detection or loop counter
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
    • G06F9/38—Concurrent instruction execution, e.g. pipeline or look ahead
    • G06F9/3836—Instruction issuing, e.g. dynamic instruction scheduling or out of order instruction execution
    • G06F9/3842—Speculative instruction execution
    • G06F9/3844—Speculative instruction execution using dynamic branch prediction, e.g. using branch history tables

Landscapes

  • Engineering & Computer Science (AREA)
  • Software Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Advance Control (AREA)
  • Executing Machine-Instructions (AREA)
  • Devices For Executing Special Programs (AREA)
  • Debugging And Monitoring (AREA)
  • Memory System Of A Hierarchy Structure (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
DE602006017174T 2005-02-24 2006-02-24 Unterdrückung der aktualisierung eines zweigverlaufsregisters durch schleifenbeendende zweige Active DE602006017174D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/066,508 US20060190710A1 (en) 2005-02-24 2005-02-24 Suppressing update of a branch history register by loop-ending branches
PCT/US2006/006531 WO2006091778A2 (en) 2005-02-24 2006-02-24 Suppressing update of a branch history register by loop-ending branches

Publications (1)

Publication Number Publication Date
DE602006017174D1 true DE602006017174D1 (de) 2010-11-11

Family

ID=36577533

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602006017174T Active DE602006017174D1 (de) 2005-02-24 2006-02-24 Unterdrückung der aktualisierung eines zweigverlaufsregisters durch schleifenbeendende zweige

Country Status (11)

Country Link
US (1) US20060190710A1 (de)
EP (2) EP2270651A1 (de)
JP (3) JP5198879B2 (de)
KR (1) KR100930199B1 (de)
CN (2) CN101160561B (de)
AT (1) ATE483198T1 (de)
DE (1) DE602006017174D1 (de)
ES (1) ES2351163T3 (de)
IL (1) IL185362A0 (de)
MX (1) MX2007010386A (de)
WO (1) WO2006091778A2 (de)

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US8607209B2 (en) * 2004-02-04 2013-12-10 Bluerisc Inc. Energy-focused compiler-assisted branch prediction
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US20060190710A1 (en) * 2005-02-24 2006-08-24 Bohuslav Rychlik Suppressing update of a branch history register by loop-ending branches
US8904155B2 (en) * 2006-03-17 2014-12-02 Qualcomm Incorporated Representing loop branches in a branch history register with multiple bits
US7962724B1 (en) * 2007-09-28 2011-06-14 Oracle America, Inc. Branch loop performance enhancement
US7956552B2 (en) * 2008-03-18 2011-06-07 International Business Machiness Corporation Apparatus, system, and method for device group identification
US20090327674A1 (en) * 2008-06-27 2009-12-31 Qualcomm Incorporated Loop Control System and Method
JP5423156B2 (ja) * 2009-06-01 2014-02-19 富士通株式会社 情報処理装置及び分岐予測方法
US20110047357A1 (en) * 2009-08-19 2011-02-24 Qualcomm Incorporated Methods and Apparatus to Predict Non-Execution of Conditional Non-branching Instructions
CN101807145B (zh) * 2010-04-16 2012-12-26 浙江大学 栈式分支预测器的硬件实现方法
US9690583B2 (en) 2011-10-03 2017-06-27 International Business Machines Corporation Exploiting an architected list-use operand indication in a computer system operand resource pool
US9286072B2 (en) 2011-10-03 2016-03-15 International Business Machines Corporation Using register last use infomation to perform decode-time computer instruction optimization
US8615745B2 (en) 2011-10-03 2013-12-24 International Business Machines Corporation Compiling code for an enhanced application binary interface (ABI) with decode time instruction optimization
US8756591B2 (en) 2011-10-03 2014-06-17 International Business Machines Corporation Generating compiled code that indicates register liveness
US10078515B2 (en) 2011-10-03 2018-09-18 International Business Machines Corporation Tracking operand liveness information in a computer system and performing function based on the liveness information
US9329869B2 (en) 2011-10-03 2016-05-03 International Business Machines Corporation Prefix computer instruction for compatibily extending instruction functionality
US9354874B2 (en) 2011-10-03 2016-05-31 International Business Machines Corporation Scalable decode-time instruction sequence optimization of dependent instructions
US8612959B2 (en) 2011-10-03 2013-12-17 International Business Machines Corporation Linking code for an enhanced application binary interface (ABI) with decode time instruction optimization
US9697002B2 (en) 2011-10-03 2017-07-04 International Business Machines Corporation Computer instructions for activating and deactivating operands
US8959320B2 (en) 2011-12-07 2015-02-17 Apple Inc. Preventing update training of first predictor with mismatching second predictor for branch instructions with alternating pattern hysteresis
US9304776B2 (en) * 2012-01-31 2016-04-05 Oracle International Corporation System and method for mitigating the impact of branch misprediction when exiting spin loops
US9268569B2 (en) 2012-02-24 2016-02-23 Apple Inc. Branch misprediction behavior suppression on zero predicate branch mispredict
US9858077B2 (en) 2012-06-05 2018-01-02 Qualcomm Incorporated Issuing instructions to execution pipelines based on register-associated preferences, and related instruction processing circuits, processor systems, methods, and computer-readable media
US20140156978A1 (en) * 2012-11-30 2014-06-05 Muawya M. Al-Otoom Detecting and Filtering Biased Branches in Global Branch History
US10261826B2 (en) 2014-06-02 2019-04-16 International Business Machines Corporation Suppressing branch prediction updates upon repeated execution of an aborted transaction until forward progress is made
US10289414B2 (en) 2014-06-02 2019-05-14 International Business Machines Corporation Suppressing branch prediction on a repeated execution of an aborted transaction
US10503538B2 (en) * 2014-06-02 2019-12-10 International Business Machines Corporation Delaying branch prediction updates specified by a suspend branch prediction instruction until after a transaction is completed
US10235172B2 (en) 2014-06-02 2019-03-19 International Business Machines Corporation Branch predictor performing distinct non-transaction branch prediction functions and transaction branch prediction functions
US10635446B2 (en) * 2015-09-24 2020-04-28 Qualcomm Incorporated Reconfiguring execution pipelines of out-of-order (OOO) computer processors based on phase training and prediction
US9639370B1 (en) * 2015-12-15 2017-05-02 International Business Machines Corporation Software instructed dynamic branch history pattern adjustment
GB2548603B (en) * 2016-03-23 2018-09-26 Advanced Risc Mach Ltd Program loop control
US20180349144A1 (en) * 2017-06-06 2018-12-06 Intel Corporation Method and apparatus for branch prediction utilizing primary and secondary branch predictors
US10613867B1 (en) 2017-07-19 2020-04-07 Apple Inc. Suppressing pipeline redirection indications
CN111177663B (zh) * 2019-12-20 2023-03-14 青岛海尔科技有限公司 编译器的代码混淆改进方法及装置、存储介质、电子装置
US11941403B2 (en) * 2020-06-19 2024-03-26 Arm Limited Selective prediction based on correlation between a given instruction and a subset of a set of monitored instructions ordinarily used to generate predictions for that given instruction
US11113067B1 (en) * 2020-11-17 2021-09-07 Centaur Technology, Inc. Speculative branch pattern update
CN112988234A (zh) * 2021-02-06 2021-06-18 江南大学 一种面向不稳定控制流循环体的分支指令辅助预测器
US11868779B2 (en) * 2021-09-09 2024-01-09 International Business Machines Corporation Updating metadata prediction tables using a reprediction pipeline
US11928474B2 (en) * 2022-06-03 2024-03-12 Microsoft Technology Licensing, Llc Selectively updating branch predictors for loops executed from loop buffers in a processor

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Also Published As

Publication number Publication date
MX2007010386A (es) 2007-10-18
JP2015007995A (ja) 2015-01-15
IL185362A0 (en) 2008-02-09
JP2011100466A (ja) 2011-05-19
KR100930199B1 (ko) 2009-12-07
EP1851620B1 (de) 2010-09-29
EP2270651A1 (de) 2011-01-05
WO2006091778A2 (en) 2006-08-31
KR20070105365A (ko) 2007-10-30
ATE483198T1 (de) 2010-10-15
EP1851620A2 (de) 2007-11-07
CN103488463A (zh) 2014-01-01
ES2351163T3 (es) 2011-02-01
CN101160561B (zh) 2013-10-16
JP2008532142A (ja) 2008-08-14
CN101160561A (zh) 2008-04-09
JP5198879B2 (ja) 2013-05-15
US20060190710A1 (en) 2006-08-24
CN103488463B (zh) 2016-11-09
WO2006091778A3 (en) 2007-07-05

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