Files
clang-p2996/polly
Tobias Grosser 922452285a Keep track of ScopArrayInfo objects that model PHI node storage
Summary:
When translating PHI nodes into memory dependences during code generation we
require two kinds of memory. 'Normal memory' as for all scalar dependences and
'PHI node memory' to store the incoming values of the PHI node. With this
patch we now mark and track these two kinds of memories, which we previously
incorrectly marked as a single memory object.

Being aware of PHI node storage makes code generation easier, as we do not need
to guess what kind of storage a scalar reference requires. This simplifies the
code nicely.

Reviewers: jdoerfert

Subscribers: pollydev, llvm-commits

Differential Revision: http://reviews.llvm.org/D11554

llvm-svn: 243420
2015-07-28 14:53:44 +00:00
..
2015-04-21 11:37:25 +00:00
2015-07-14 10:52:58 +00:00
2015-06-23 20:55:01 +00:00
2014-08-10 03:37:29 +00:00
2015-06-25 16:50:13 +00:00

Polly - Polyhedral optimizations for LLVM
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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.