Hewlett-packard Development Company, L.p.

Sungdo Moon

Robert Hundt

Dhruva Ranjan Chakrabarti

Xinliang David Li

Sandya Srivilliputtur Mannarswamy

Shin-Ming Liu

David Xinliang Li

Luis A Lozano

Loreena Wong

One embodiment relates to a computer-implemented method of compiling a software program into an executable binary file, including determining a data layout in the binary file and a data layout in the executable's dynamically allocated memory. The method includes taking into account data types of data as a factor in determining a data layout for the binary file and for the executable's dynamically allocated memory, wherein the data types include a floating-point data type and a non-floating-point data type. Other embodiments, aspects and features are also disclosed herein.

Data layout using data type information

Techniques for cross-module in-lining are disclosed. In an embodiment, in-lining is done in conjunction with a 3-phase compiler including a front-end phase, an IPA (Inter-Procedural Analysis) phase, and a back-end phase. The front-end phase processes the source code in various modules and provides the intermediate representations of such source code. The IPA phase determines whether a function should be in-lined, and, if so, provides in-line transformation instructions for the back-end phase to execute. The back-end phase executes the instructions provided by the IPA, which, in effect, transforms the in-lining code.

Cross-module in-lining

Techniques for cloning programming code are disclosed. In an embodiment, the cloned code is in the form of functions in the C language. Further, in a method embodiment, a clone of a function is invoked, and information mapping the clone to the function is generated. At link time, if no function body of the clone is accessible by a linker, then the linker uses information mapping the clone to the function to satisfy a linker's requirement. At load time, if no function body of the clone is accessible by a loader, then the loader, based on the mapping information, allows selection of a body of the function. However, if the body function of the clone is accessible by the loader, then the loader allows selection of the body of the clone.

Cloning programming code

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Cupertino, CA, United States of America

Sungdo Moon