公开(公告)号：US20170090920A1

公开(公告)日：2017-03-30

申请号：US15346805

申请日：2016-11-09

申请人： International Business Machines Corporation

发明人： Michael H. Dawson ,  Jinghua Feng ,  Daniel J. Heidinga

IPC分类号： G06F9/44

CPC分类号： G06F8/75 ,  G06F8/315 ,  G06F8/443 ,  G06F8/4441 ,  G06F8/71 ,  G06F9/4491 ,  G06F9/45525 ,  G06F9/45529

摘要： An embodiments of the invention may include a method, computer program product and computer system for optimizing computer programs. The embodiment may include a computing device that determines a program code of a computer program contains at least two consecutive method handles. The embodiment may determine that the at least two consecutive method handles can be optimized. The embodiment may optimize the at least two consecutive method handles. Optimizing the at least two consecutive method handles may include one or more of: replacing the at least two consecutive method handles with one or more different commands; and reordering the at least two consecutive method handles.

公开(公告)号：US20160092174A1

公开(公告)日：2016-03-31

申请号：US14962901

申请日：2015-12-08

申请人： Microsoft Technology Licensing, LLC

发明人： Jedrzej Miadowicz ,  Curtis Cheng-Cheng Man ,  Louis Lafreniere

IPC分类号： G06F9/44 ,  G06F9/45

CPC分类号： G06F8/31 ,  G06F8/41 ,  G06F9/4491 ,  G06F9/45504 ,  G06F9/4552 ,  G06F9/45529

摘要： A method for executing a machine code based on a dynamic language is disclosed. An execution guard is created as a value stored in a data structure. The value is representative of an expected condition or a set of conditions for a reusable portion of the machine code. The value representative of the expected condition(s) is compared to an actual value encountered later during execution of a portion of the machine code. The reusable machine code is executed if the actual value corresponds with the value representative of the expected condition(s). The execution guard is invalidated if any of the expected conditions changes.

公开(公告)号：US20150205720A1

公开(公告)日：2015-07-23

申请号：US14262871

申请日：2014-04-28

申请人： QUALCOMM Incorporated

发明人： Behnam Robatmili ,  Gheorghe Calin Cascaval ,  Madhukar Nagaraja Kedlay ,  Dario Suarez Gracia

IPC分类号： G06F12/08

CPC分类号： G06F9/4491 ,  G06F12/0802

摘要： Aspects include apparatuses, systems, and methods for hardware acceleration for inline caches in dynamic languages. An inline cache may be initialized for an instance of a dynamic software operation. A call of an initialized instance of the dynamic software operation may be executed by an inline cache hardware accelerator. The inline cache may be checked to determine that its data is current. When the data is current, the initialized instance of the dynamic software operation may be executed using the related inline cache data. When the data is not current, a new inline cache may be initialized for the instance of the dynamic software operation, including the not current data of a previously initialized instance of the dynamic software operation. The inline cache hardware accelerator may include an inline cache memory, a coprocessor, and/or a functional until one an inline cache pipeline connected to a processor pipeline.

摘要翻译： 方面包括用于动态语言的内联高速缓存的硬件加速的装置，系统和方法。 可以为动态软件操作的实例初始化内联缓存。 动态软件操作的初始化实例的调用可以由内联高速缓存硬件加速器执行。 可以检查内联高速缓存以确定其数据是当前的。 当数据是最新的时，可以使用相关的在线高速缓存数据来执行动态软件操作的初始化实例。 当数据不是当前的时候，可以为动态软件操作的实例初始化新的内联高速缓存，包括动态软件操作的先前初始化的实例的当前数据。 内联高速缓存硬件加速器可以包括内联高速缓冲存储器，协处理器和/或功能，直到连接到处理器流水线的内联高速缓存流水线为止。

公开(公告)号：US20150067639A1

公开(公告)日：2015-03-05

申请号：US14231464

申请日：2014-03-31

申请人： Apple Inc.

发明人： Filip J. Pizlo

IPC分类号： G06F9/44

CPC分类号： G06F12/0815 ,  G06F8/315 ,  G06F8/4443 ,  G06F9/4491 ,  G06F9/451 ,  G06F9/45504 ,  G06F9/45508 ,  G06F9/45516 ,  G06F9/4552 ,  G06F9/45529 ,  G06F2212/621

摘要： A method and an apparatus for an enhanced object model to allow concurrent execution for program code generated from dynamic programming languages, such as JavaScript, are described. An index structure may be introduced to an object model representing a dynamically typed object in addition to a type structure and a data payload storing property or field values of the object. Elements of the index structure may point at corresponding property values as an indirection for accessing the object.

摘要翻译： 描述了用于允许从动态编程语言（例如JavaScript）生成的程序代码的并发执行的增强对象模型的方法和装置。 索引结构可以被引入到表示动态类型对象的对象模型，除了类型结构和数据有效载荷存储对象的属性或字段值之外。 索引结构的元素可以指向相应的属性值作为访问对象的间接。

公开(公告)号：US20110138369A1

公开(公告)日：2011-06-09

申请号：US12633146

申请日：2009-12-08

申请人： Satish Chandra ,  Stephen Fink ,  Manu Sridharan

发明人： Satish Chandra ,  Stephen Fink ,  Manu Sridharan

IPC分类号： G06F9/44

CPC分类号： G06F8/433 ,  G06F9/4491

摘要： A technique for feedback-directed call graph expansion includes performing symbolic analysis on an interprocedural control flow graph representation of software code, skipping over a virtual method call in the control flow graph, using information obtained from the symbolic analysis as feedback to identify a target of the virtual method call, and iterating the symbolic analysis on a modified version of the control flow graph that associates the target with the virtual method.

摘要翻译： 用于反馈定向的调用图扩展的技术包括对软件代码的过程间控制流程图表示执行符号分析，在控制流程图中跳过虚拟方法调用，使用从符号分析获得的信息作为反馈来识别目标 虚拟方法调用，并且将目标与虚拟方法相关联的控制流图的修改版本迭代符号分析。

公开(公告)号：US20080005731A1

公开(公告)日：2008-01-03

申请号：US11478285

申请日：2006-06-29

申请人： Relja Markovic ,  Ramanujan Srinivasan ,  Samuel Glassenberg

发明人： Relja Markovic ,  Ramanujan Srinivasan ,  Samuel Glassenberg

IPC分类号： G06F9/44

CPC分类号： G06F9/44521 ,  G06F9/4491 ,  G06T15/005

摘要： In a state management system of an effects system implemented in a Graphics Processing Unit (GPU), techniques and technologies are provided for setting a value to particular variables at application run-time without validating the variables. For example, a compiled effects file comprising a number of variables can be loaded at application load time, and a generic, variable interface pointer for a particular variable of the effects file can be retrieved. A specialized variable interface pointer can then be generated which is associated with the particular variable by specifying a desired type of access that will be performed on the particular variable. At application run-time, the specialized variable interface can be used to set a value to each of the particular variables without validating the particular variables at application run-time.

摘要翻译： 在图形处理单元（GPU）中实现的效果系统的状态管理系统中，提供了在应用程序运行时将值设置为特定变量而不验证变量的技术和技术。 例如，可以在应用加载时加载包含多个变量的编译效果文件，并且可以检索用于特定文件的特定变量的通用的可变接口指针。 然后可以通过指定将对特定变量执行的期望类型的访问来生成与特定变量相关联的专用变量接口指针。 在应用程序运行时，可以使用专用变量接口为每个特定变量设置一个值，而不在应用程序运行时验证特定变量。

公开(公告)号：US07080366B2

公开(公告)日：2006-07-18

申请号：US09858827

申请日：2001-05-16

申请人： Jeremy Paul Kramskoy ,  William Thomas Charnell ,  Stephen Darnell ,  Blaise Abel Alec Dias ,  Philippa Joy Guthrie ,  Wayne Plummer ,  Jeremy James Sexton ,  Michael John Wynn ,  Keith Rautenback ,  Stephen Paul Thomas

发明人： Jeremy Paul Kramskoy ,  William Thomas Charnell ,  Stephen Darnell ,  Blaise Abel Alec Dias ,  Philippa Joy Guthrie ,  Wayne Plummer ,  Jeremy James Sexton ,  Michael John Wynn ,  Keith Rautenback ,  Stephen Paul Thomas

IPC分类号： G06F9/45

CPC分类号： G06F9/4812 ,  G06F8/4442 ,  G06F8/445 ,  G06F9/4484 ,  G06F9/449 ,  G06F9/4491 ,  G06F9/455 ,  G06F9/45516 ,  G06F11/3612 ,  G06F12/0269 ,  G06F2209/481 ,  Y10S707/99932 ,  Y10S707/99953 ,  Y10S707/99956

摘要： A dynamic compiler and method of compiling code to generate a dominate path and handle exceptions. The dynamic compiler includes an execution history recorder that is configured to record the number of times a fragment of code is interpreted. When the code is interpreted a threshold number of times, the code is queued for compilation. The execution history recorder also keeps track of where transfer of control came from and where transfer of control goes to for each fragment of code that is executed, thereby allowing for compilation of a dominant path of code. If the execution of code deviates from the dominant path of compiled code (such as when an exception occurs), a fallback interpreter is utilized to interpret the fragment of code to be executed.

公开(公告)号：US06901587B2

公开(公告)日：2005-05-31

申请号：US09859072

申请日：2001-05-16

申请人： Jeremy Paul Kramskoy ,  William Thomas Charnell ,  Stephen Darnell ,  Blaise Abel Alec Dias ,  Philippa Joy Guthrie ,  Wayne Plummer ,  Jeremy James Sexton ,  Michael John Wynn ,  Keith Rautenbach ,  Stephen Paul Thomas

发明人： Jeremy Paul Kramskoy ,  William Thomas Charnell ,  Stephen Darnell ,  Blaise Abel Alec Dias ,  Philippa Joy Guthrie ,  Wayne Plummer ,  Jeremy James Sexton ,  Michael John Wynn ,  Keith Rautenbach ,  Stephen Paul Thomas

IPC分类号： G06F11/28 ,  G06F9/40 ,  G06F9/42 ,  G06F9/44 ,  G06F9/45 ,  G06F9/455 ,  G06F9/46 ,  G06F9/48 ,  G06F11/36 ,  G06F12/02 ,  G06F12/00 ,  G06F12/14

CPC分类号： G06F9/4812 ,  G06F8/4442 ,  G06F8/445 ,  G06F9/4484 ,  G06F9/449 ,  G06F9/4491 ,  G06F9/455 ,  G06F9/45516 ,  G06F11/3612 ,  G06F12/0269 ,  G06F2209/481 ,  Y10S707/99932 ,  Y10S707/99953 ,  Y10S707/99956

摘要： A method and a system of cache management using spatial separation of outliers. The system includes a dynamic compiler arranged to create compiled fragments of code having dominant code blocks and outliers. Memory coupled to the dynamic compiler is managed by a compiler manager such that dominant code blocks are stored in one portion of the memory and the outliers are stored in another portion of the memory. Storing the dominant path code separate from the outliers increases efficiency of the system.

摘要翻译： 使用离群值空间分离的缓存管理方法和系统。 该系统包括一个动态编译器，用于创建具有主要代码块和异常值的代码的编译片段。 耦合到动态编译器的存储器由编译器管理器管理，使得主要代码块被存储在存储器的一部分中，异常值存储在存储器的另一部分中。 将主导路径代码与离群值分开可以提高系统的效率。

公开(公告)号：US20040244009A1

公开(公告)日：2004-12-02

申请号：US09896075

申请日：2001-06-28

申请人： Sun Microsystems, Inc.

发明人： Lars Bak ,  Urs Holzle

IPC分类号： G06F009/44

CPC分类号： G06F9/4491

摘要： Systems and methods for implementing message dispatch for an object-oriented program are provided. Receiver type information is collected at a site of a method that dispatches messages to receiver objects. The receiver type information is saved for subsequent execution of the program. By saving the receiver type information, the program may be more efficient as it is not necessary to collect the receiver type information again. Additionally, inlining information may be saved with the receiver type information.

摘要翻译： 提供了一种用于实现面向对象程序的消息发送的系统和方法。 接收器类型信息在将消息分派给接收器对象的方法的站点处收集。 保存接收器类型信息以便随后执行程序。 通过保存接收器类型信息，程序可能更有效，因为不需要再次收集接收器类型信息。 此外，可以使用接收器类型信息来保存内联信息。

公开(公告)号：US06760907B2

公开(公告)日：2004-07-06

申请号：US09108061

申请日：1998-06-30

申请人： Nicholas Shaylor

发明人： Nicholas Shaylor

IPC分类号： G06F945

CPC分类号： G06F8/447 ,  G06F9/4491

摘要： A method, system and apparatus for generating and optimizing native code in a runtime compiler from a group of bytecodes presented to the compiler. The compiler accesses information that indicates a likelihood that a class will be a particular type when accessed by the running program. Using the accessed information, the compiler selects a code generation method from a plurality of code generation methods. A code generator generates optimized native code according to the selected code generation method and stores the optimized native code in a code cache for reuse.

摘要翻译： 一种用于从呈现给编译器的一组字节码生成和优化运行时编译器中的本地代码的方法，系统和装置。 编译器访问指示在正在运行的程序访问时类可能是特定类型的信息。 使用所访问的信息，编译器从多个代码生成方法中选择代码生成方法。 代码生成器根据选择的代码生成方法生成优化的本机代码，并将优化的本机代码存储在代码高速缓存中以供重用。