Johannes Doerfert b3410db2b7 [FIX] Do not recompute SCEVs but pass them to subfunctions
This reverts commit 2879c53e80e05497f408f21ce470d122e9f90f94.
  Additionally, it adds SDiv and SRem instructions to the set of values
  discovered by the findValues function even if we add the operands to
  be able to recompute the SCEVs. In subfunctions we do not want to
  recompute SDiv and SRem instructions but pass them instead as they
  might have been created through the IslExprBuilder and are more
  complicated than simple SDiv/SRem instructions in the code.

llvm-svn: 265873
2016-04-09 14:30:11 +00:00
..
2016-03-30 22:41:38 +00:00
2016-04-05 16:15:44 +00:00
2016-03-30 22:41:38 +00:00

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.