llvm-project/polly
Roman Gareev 98075fe181 A new algorithm for identification of a SCoP statement that implement a matrix
multiplication

The current identification of a SCoP statement that implement a matrix
multiplication does not help to identify different permutations of loops that
contain it and check for dependencies, which can prevent it from being
optimized. It also requires external determination of the operands of
the matrix multiplication. This patch contains the implementation of a new
algorithm that helps to avoid these issues. It also modifies the test cases
that generate matrix multiplications with linearized accesses, because
the new algorithm does not support them.

Reviewed-by: Michael Kruse <llvm@meinersbur.de>,
             Tobias Grosser <tobias@grosser.es>

Differential Revision: https://reviews.llvm.org/D28357

llvm-svn: 293890
2017-02-02 14:23:14 +00:00
..
cmake Remove -fvisibility=hidden and FORCE_STATIC. 2016-09-12 18:25:00 +00:00
docs docs: Add source of LLVM pass order illustration 2017-01-17 06:16:09 +00:00
include/polly A new algorithm for identification of a SCoP statement that implement a matrix 2017-02-02 14:23:14 +00:00
lib A new algorithm for identification of a SCoP statement that implement a matrix 2017-02-02 14:23:14 +00:00
test A new algorithm for identification of a SCoP statement that implement a matrix 2017-02-02 14:23:14 +00:00
tools GPURuntime: ensure compilation with C99 2016-09-11 07:32:50 +00:00
unittests Update to recent formatting changes 2017-02-01 10:12:09 +00:00
utils Revise polly-{update|check}-format targets 2015-09-14 16:59:50 +00:00
www www: Add dates RSS news 2017-01-08 09:28:10 +00:00
.arcconfig Upgrade all the .arcconfigs to https. 2016-07-14 13:15:37 +00:00
.arclint Adjusted arc linter config for modern version of arcanist 2015-08-12 09:01:16 +00:00
.gitattributes
.gitignore Do not track the isl PDF manual in SVN 2017-01-16 11:48:03 +00:00
CMakeLists.txt Teach Polly's standalone build to work now that we include the gmock 2017-01-11 01:07:37 +00:00
CREDITS.txt Add myself to the credits 2014-08-10 03:37:29 +00:00
LICENSE.txt Update copyright year to 2016. 2016-03-30 22:41:38 +00:00
README

README

Polly - Polyhedral optimizations for LLVM
-----------------------------------------
http://polly.llvm.org/

Polly uses a mathematical representation, the polyhedral model, to represent and
transform loops and other control flow structures. Using an abstract
representation it is possible to reason about transformations in a more general
way and to use highly optimized linear programming libraries to figure out the
optimal loop structure. These transformations can be used to do constant
propagation through arrays, remove dead loop iterations, optimize loops for
cache locality, optimize arrays, apply advanced automatic parallelization, drive
vectorization, or they can be used to do software pipelining.