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llvm-project/polly
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Tobias Grosser d79cb0378b IRBuilder: Ensure we do not add empty map elements 
Do not use "Map[Key] == nullptr" to check if a Key is in the map, but use
"Map.find(Key) == Map.end()". Map[Key] always adds Key into the map, a
side-effect we do not want.

Found by inspection. This is hard to test outside of a targetted unit test,
which seems too much overhead for this individual issue.

llvm-svn: 249544
 		2015-10-07 13:19:06 +00:00
..
autoconf Generate gitversion.h in autoconf builds 2015-09-09 13:15:11 +00:00
cmake Compile ISL into its own library 2015-09-24 11:30:22 +00:00
include/polly Introduce -polly-process-unprofitable 2015-10-06 16:10:29 +00:00
lib IRBuilder: Ensure we do not add empty map elements 2015-10-07 13:19:06 +00:00
test test: Add example of scalar that is reused accross loop 2015-10-07 09:00:29 +00:00
tools Do not compile GPU library with sanitizers 2015-07-28 12:51:23 +00:00
utils Revise polly-{update|check}-format targets 2015-09-14 16:59:50 +00:00
www Mark a couple of issues as done 2015-09-24 14:30:14 +00:00
.arcconfig Adjusted arc linter config for modern version of arcanist 2015-08-12 09:01:16 +00:00
.arclint Adjusted arc linter config for modern version of arcanist 2015-08-12 09:01:16 +00:00
.gitattributes gitattributes: .png and .txt are no text files 2013-07-28 09:05:20 +00:00
.gitignore Add git patch files to .gitignore 2015-06-23 20:55:01 +00:00
CMakeLists.txt Compile ISL into its own library 2015-09-24 11:30:22 +00:00
CREDITS.txt Add myself to the credits 2014-08-10 03:37:29 +00:00
LICENSE.txt Update the copyright credits -- Happy new year 2014! 2014-01-01 08:27:31 +00:00
Makefile
…
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 Fix autotools build 2015-06-25 16:50:13 +00:00
README Trivial change to the README, mainly to test commit access. 2012-10-09 04:59:42 +00:00
configure Enable ISL's small integer optimization 2015-06-25 20:47:35 +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.