Victor M Hernandez

US Patent:

8561045, Oct 15, 2013

Filed:

Jul 30, 2010

Appl. No.:

12/847904

Inventors:

Victor Leonel Hernandez Porras - San Francisco CA, US
Christopher Arthur Lattner - San Jose CA, US
Jia-Hong Chen - Cupertino CA, US
Eric Marshall Christopher - Los Gatos CA, US
Roger Scott Hoover - Cheyenne WY, US
Francois Jouaux - Woodside CA, US
Robert John McCall - San Francisco CA, US
Thomas John O'Brien - San Jose CA, US
Pratik Solanki - Mountain View CA, US

Assignee:

Apple Inc. - Cupertino CA

International Classification:

G06F 9/45

US Classification:

717159, 717151

Abstract:

Techniques for processing computer code are disclosed. In one example, an indication that a computer code is to begin execution at a portion of code other than a starting portion of the code is received, and a runtime state associated with the portion of the code at which execution is to begin is constructed. In some examples, execution of the portion of code is initiated. In some examples, a program counter associated with the portion of the code is used to initiate execution of the code. In some examples, the computer code comprises a fallback code associated with a previously executing code.

US Patent:

20100153911, Jun 17, 2010

Filed:

Dec 15, 2008

Appl. No.:

12/316731

Inventors:

Victor Leonel Hernandez Porras - San Francisco CA, US
Roger Scott Hoover - Cheyenne WY, US

International Classification:

G06F 9/44

US Classification:

717106

Abstract:

Optimized storage of function variables in compiled code is disclosed. It is determined that a variable of a first function is required to be available for use by a second function subsequent to return of the first function. Machine code is generated to escape the variable from a storage location in a stack memory to a storage location in a heap memory, prior to the variable being removed from the stack memory, in connection with return of the first function.

US Patent:

20100153912, Jun 17, 2010

Filed:

Dec 15, 2008

Appl. No.:

12/316768

Inventors:

Victor Leonel Hernandez Porras - San Francisco CA, US
Roger Scott Hoover - Cheyenne WY, US
Eric Marshall Christopher - Los Gatos CA, US
Christopher Arthur Lattner - San Jose CA, US
Thomas John O'Brien - San Jose CA, US
Pratik Solanki - Mountain View CA, US
Jia-Hong Chen - Cupertino CA, US

International Classification:

G06F 9/44

US Classification:

717106

Abstract:

Variable type knowledge based call specialization is disclosed. An indication is received that a variable that is an argument of a function or operation the behavior of which depends at least in part on a data type of the argument is of a first data type. Machine code that implements a first behavior that corresponds to the first data type, but not a second behavior that corresponds to a second data type other than the first data type, is generated for the function or operation.

US Patent:

20100153929, Jun 17, 2010

Filed:

Dec 15, 2008

Appl. No.:

12/316730

Inventors:

Victor Leonel Hernandez Porras - San Francisco CA, US
Thomas John O'Brien - San Jose CA, US
Roger Scott Hoover - Cheyenne WY, US
Christopher Arthur Lattner - San Jose CA, US
Eric Marshall Christopher - Los Gatos CA, US
Pratik Solanki - Mountain View CA, US
Jia-Hong Chen - Cupertino CA, US
Michael Alan Kahl - Austin TX, US

International Classification:

G06F 9/45

US Classification:

717139, 717146

Abstract:

A device-independent intermediate representation of a source code is generated and stored, e.g., in a memory or other storage mechanism. The stored intermediate representation of the source code is used to generate a device-specific machine code corresponding to the source code. The stored intermediate representation may be updated, e.g., periodically, for example by obtaining an updated version of the source code and compiling the updated source code to generate an updated intermediate representation. The stored intermediate representation may be based on source code received from a device that is synchronized with which a compiling device that generates the device-specific machine code. In some cases, the stored intermediate representation may be used to generate for each of a plurality of devices a corresponding device-specific machine code.

US Patent:

20100153935, Jun 17, 2010

Filed:

Dec 15, 2008

Appl. No.:

12/316729

Inventors:

Victor Leonel Hernandez Porras - San Francisco CA, US
Roger Scott Hoover - Cheyenne WY, US
Christopher Arthur Lattner - San Jose CA, US
Thomas John O'Brien - San Jose CA, US

International Classification:

G06F 9/45

US Classification:

717146, 717154

Abstract:

Delayed insertion of safepoint related code is disclosed. Optimization processing is performed with respect to an intermediate representation of a source code. The optimized intermediate representation is analyzed programmatically to identify a safepoint and insert safepoint related code associated with the safepoint. In some embodiments, analyzing the optimized intermediate representation programmatically comprises determining where to place the safepoint within a program structure of the source code as reflected in the intermediate representation.

US Patent:

20100153936, Jun 17, 2010

Filed:

Dec 15, 2008

Appl. No.:

12/316761

Inventors:

Victor Leonel Hernandez Porras - San Francisco CA, US
Roger Scott Hoover - Cheyenne WY, US
Christopher Arthur Lattner - San Jose CA, US
Eric Marshall Christopher - Los Gatos CA, US

International Classification:

G06F 9/45

US Classification:

717146, 717151

Abstract:

Deferred constant pool generation is disclosed. Optimization processing is performed with respect to an intermediate representation of a source code. The optimized intermediate representation is used to generate a constant pool. In some embodiments, the source code comprises JavaScript, which is used to generate an LLVM or other intermediate representation (IR), which intermediate representation is optimized prior to a constant pool being generated.

US Patent:

20120030653, Feb 2, 2012

Filed:

Jul 30, 2010

Appl. No.:

12/847925

Inventors:

Victor Leonel Hernandez Porras - San Francisco CA, US
Christopher Arthur Lattner - San Jose CA, US
Jia-Hong Chen - Cupertino CA, US
Eric Marshall Christopher - Los Gatos CA, US
Roger Scott Hoover - Cheyenne WY, US
Francois Jouaux - Woodside CA, US
Robert John McCall - San Francisco CA, US
Thomas John O'Brien - San Jose CA, US
Pratik Solanki - Mountain View CA, US

Assignee:

APPLE INC. - Cupertino CA

International Classification:

G06F 9/44

US Classification:

717124

Abstract:

Techniques for processing source code written in a traditionally interpreted language such as JavaScript, or another dynamic and/or interpreted language, are disclosed. In one example, compiled code associated with the source code is constructed and executed. An assumption on which a specific aspect of the compiled code is based (e.g., an optimization) is tested at a checkpoint of the compiled code. A roll over to fallback code is performed if the test indicates the assumption is not true.

US Patent:

20120030661, Feb 2, 2012

Filed:

Jul 30, 2010

Appl. No.:

12/847945

Inventors:

Victor Leonel Hernandez Porras - San Francisco CA, US
Christopher Arthur Lattner - San Jose CA, US
Jia-Hong Chen - Cupertino CA, US
Eric Marshall Christopher - Los Gatos CA, US
Roger Scott Hoover - Cheyenne WY, US
Francois Jouaux - Woodside CA, US
Robert John McCall - San Francisco CA, US
Thomas John O'Brien - San Jose CA, US
Pratik Solanki - Mountain View CA, US

Assignee:

APPLE INC. - Cupertino CA

International Classification:

G06F 9/45

US Classification:

717153

Abstract:

Observation and analysis based optimization of software code is disclosed. An expected value is chosen for a dynamic attribute that cannot be determined, prior to execution of the associated software code, to be guaranteed to have that expected value at runtime. An optimized version of the software code is generated, including one or more optimizations based on an assumption that the dynamic attribute will have the expected value. Non-exhaustive examples of a dynamic attribute include a variable type; a location in memory; a location in which a global object, property, or variable is stored; the contents of a global function or method; and a value of a global property or variable. A check is performed during execution of the optimized version of the software code, prior to executing the portion that has been optimized based on the assumption, to verify that the dynamic attribute has the expected value. In the event that it is determined at runtime that the dynamic attribute does not have the expected value, execution reverts to backup code that is not based on the assumption that dynamic attribute will have the expected value.

Address:

1360 Dalarna Way, Turlock, CA 95382

Phone:

(209)6568481

VIN:

3N1BC13E07L382138

Make:

NISSAN

Model:

VERSA

Year:

2007