Intel Corporation

Sergey Preis

Milind Baburao Girkar

Xinmin Tian

Rakesh Krishnaiyer

David L Kreitzer

Philippe Thierry

Vyacheslav Pavlovich Zakharin

Leonardo Jose Borges

Farhana Aleen Schuchman

Mikhail Plotnikov

Robert Geva

Hideki Ido

Sergey Stanislavoich Kozhukhov

Konstantin Anatolyevich Pyjov

Maxim Shutov

Hideki Sato

Aleksei Gurievich Kasov

Nikolay Vladimirovich Panchenko

Methods, apparatus, and system to optimize compilation of source code into vectorized compiled code, notwithstanding the presence of output dependencies which might otherwise preclude vectorization.

Vectorize store instructions method and apparatus

Methods, apparatus, systems and articles of manufacture are disclosed to eliminate partial-redundant vector load operations. An example apparatus includes a node grouper to associate a vector operation with a node group, a candidate verifier to perform a dependencies test on a subset of the node group, and identify a subset of the node group as a candidate when the subset satisfies the dependencies test, and a code optimizer to determine replacement code based on a characteristic of the candidate in the node group and compare an estimated cost associated with executing the replacement code to a threshold. The example apparatus also includes a code generator to generate machine code using the replacement code when the estimated cost of executing the replacement code satisfies the threshold.

Methods and apparatus to eliminate partial-redundant vector loads

Methods, apparatus, systems and articles of manufacture are disclosed to eliminate partial-redundant vector loads. An example apparatus includes a node group to associate a vector operation with a node group based on a load type of the vector operation. The example apparatus also includes a candidate identifier to identify a candidate in the node group, the candidate to include a subset of vector operations of the node group. The example apparatus also includes a code optimizer to determine replacement code based on a characteristic of the candidate, and to compare an estimated cost associated with executing the replacement code to a threshold cost relative to a cost of executing the candidate. The example apparatus also includes a code generator to generate machine code using the replacement code when the estimated cost of executing the replacement code satisfies the threshold cost.

Methods and apparatuses associated with vectorization of scalar callee functions are disclosed herein. In various embodiments, compiling a first program may include generating one or more vectorized versions of a scalar callee function of the first program, based at least in part on vectorization annotations of the first program. Additionally, compiling may include generating one or more vectorized function signatures respectively associated with the one or more vectorized versions of the scalar callee function. The one or more vectorized function signatures may enable an appropriate vectorized version of the scalar callee function to be matched and invoked for a generic call from a caller function of a second program to a vectorized version of the scalar callee function.

Vectorization of scalar functions including vectorization annotations and vectorized function signatures matching

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Novosibirsk, Russia

Sergey Preis