llvm-project/polly
Tobias Grosser f44f005a7d Remove freed InvalidDomains from InvalidDomainMap.
Summary:
Since r306667, propagateInvalidStmtDomains gets a reference to an
InvalidDomainMap. As part of the branch leading to return false, the respective
domain is freed. It is, however, not removed from the InvalidDomainMap, leaking
a pointer to a freed object which results in a use-after-free. Fix this be
removing the domain from the map before returning.

We tried to derive a test case that reliably failes, but did not succeed in
producing one. Hence, for now the failures in our LNT bots must be sufficient
to keep this issue tested.

Reviewers: grosser, Meinersbur, bollu

Subscribers: bollu, nandini12396, pollydev, llvm-commits

Differential Revision: https://reviews.llvm.org/D34971

llvm-svn: 307499
2017-07-09 15:47:17 +00:00
..
cmake Test commit 2017-06-29 16:35:38 +00:00
docs [doc] Add Davide's links regarding automated bisecting 2017-06-17 08:44:12 +00:00
include/polly Introduce a hybrid target to generate code for either the GPU or CPU 2017-06-30 19:42:21 +00:00
lib Remove freed InvalidDomains from InvalidDomainMap. 2017-07-09 15:47:17 +00:00
test [NFC] [PPCGCodeGeneration] Extend `invariant-load-hoisting-with-variable-upper-bound` test case. 2017-07-07 14:02:27 +00:00
tools [CMake] Retire Polly's FindCUDA.cmake in favour of CMake's default FindCUDA.cmake script. 2017-06-06 19:20:48 +00:00
unittests Update Polly to reflect a change to a clang-format patch. I'm not sure 2017-06-29 23:58:03 +00:00
utils Revise polly-{update|check}-format targets 2015-09-14 16:59:50 +00:00
www [www] Remove outdated documentation 2017-06-12 12:21:47 +00:00
.arcconfig Upgrade all the .arcconfigs to https. 2016-07-14 13:15:37 +00:00
.arclint [External] Move lib/JSON to lib/External/JSON. NFC. 2017-02-05 15:26:56 +00:00
.gitattributes
.gitignore Do not track the isl PDF manual in SVN 2017-01-16 11:48:03 +00:00
CMakeLists.txt [CMake] Retire Polly's FindCUDA.cmake in favour of CMake's default FindCUDA.cmake script. 2017-06-06 19:20:48 +00:00
CREDITS.txt Add myself to the credits 2014-08-10 03:37:29 +00:00
LICENSE.txt [External] Move lib/JSON to lib/External/JSON. NFC. 2017-02-05 15:26:56 +00:00
README Test commit 2017-06-28 12:58:44 +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.