hanchenye-llvm-project

History

Tobias Grosser e8df5bd92b IndependentBlocks: We can only reconstruct PHI nodes that are within the ScoP In the classical (non -polly-codegen-scev) mode, we assume that we can always recreate PHI nodes during code generation. This is not true. We can only reconstruct them from the polyhedral information, in case the entire loop of the PHI node is part of the SCoP and consequently the PHI node was translated in the polyhedral description. llvm-svn: 179674		2013-04-17 07:20:36 +00:00
..
autoconf	'chmod -x' on files that do not need the executable bits	2012-12-29 15:09:03 +00:00
cmake	autoconf/cmake: Always require isl code generation.	2012-10-21 21:48:21 +00:00
docs	…
include	Remove unneeded RegionSimplify pass.	2013-04-17 07:20:30 +00:00
lib	IndependentBlocks: We can only reconstruct PHI nodes that are within the ScoP	2013-04-17 07:20:36 +00:00
test	IndependentBlocks: We can only reconstruct PHI nodes that are within the ScoP	2013-04-17 07:20:36 +00:00
tools	Update formatting to latest version of clang-format	2013-04-10 06:55:45 +00:00
utils	check that clang-format exists	2013-02-15 21:26:50 +00:00
www	Remove unneeded RegionSimplify pass.	2013-04-17 07:20:30 +00:00
CMakeLists.txt	cmake: Do not clang-format check the externally imported json library	2013-03-23 01:04:48 +00:00
CREDITS.txt	(Test commit for polly)	2011-07-16 13:30:03 +00:00
LICENSE.txt	Update the copyright coredits -- Happy new year 2013!	2013-01-01 10:00:19 +00:00
Makefile	Revert "Fix a bug introduced by r153739: We are not able to provide the correct"	2012-04-11 07:43:13 +00:00
Makefile.common.in	'chmod -x' on files that do not need the executable bits	2012-12-29 15:09:03 +00:00
Makefile.config.in	'chmod -x' on files that do not need the executable bits	2012-12-29 15:09:03 +00:00
README	Trivial change to the README, mainly to test commit access.	2012-10-09 04:59:42 +00:00
configure	do not require cloog from configure	2012-11-26 23:03:41 +00:00

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.