Riccardo Mori 2ae7d6d427 Revert "Update isl to isl-0.24-69-g54aac5ac"
This reverts commit 13f95cc3d10d9884acd2dbfc112e3c7079403c0a.

The commit makes some polly tests failing
2021-07-23 19:07:19 +02:00
..
2021-07-13 22:36:22 -05:00
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2020-07-16 21:53:45 +02:00
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2017-06-28 12:58:44 +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.