llvm-project/polly
Tobias Grosser 46c6abb306 Remove unneeded preservation and restore of ValueMap and ClastVars in GPGPU code
generation.

We don't use the exact same way to build loop body for GPGPU codegen as openmp
codegen and other transformations do currently, in which cases 'createLoop'
function is called recursively. GPGPU codegen may fail due to improper restore
of ValueMap and ClastVars .

Contributed by:  Yabin Hu <yabin.hwu@gmail.com>

llvm-svn: 168966
2012-11-30 01:05:05 +00:00
..
autoconf do not require cloog from configure 2012-11-26 23:03:41 +00:00
cmake autoconf/cmake: Always require isl code generation. 2012-10-21 21:48:21 +00:00
docs Add initial version of Polly 2011-04-29 06:27:02 +00:00
include remove dependence on CLOOG_FOUND for PollyVectorizerChoice 2012-11-26 22:16:17 +00:00
lib Remove unneeded preservation and restore of ValueMap and ClastVars in GPGPU code 2012-11-30 01:05:05 +00:00
test Fix tests with broken datalayout strings. 2012-11-28 13:30:31 +00:00
tools Update libGPURuntime to be dual licensed under MIT and UIUC license. 2012-07-06 10:40:15 +00:00
utils Update to Polly for LLVM r165262 which changes TargetData to Datalayout. 2012-11-29 17:34:50 +00:00
www www: Correct command line that loads polly into dragonegg 2012-10-21 17:33:00 +00:00
CMakeLists.txt cmake: Fix installation of include files 2012-11-28 10:12:21 +00:00
CREDITS.txt (Test commit for polly) 2011-07-16 13:30:03 +00:00
LICENSE.txt Happy new year 2012! 2012-01-01 08:16:56 +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 Add initial version of Polly 2011-04-29 06:27:02 +00:00
Makefile.config.in autoconf/cmake: Always require isl code generation. 2012-10-21 21:48:21 +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.