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* tests: Drop -polly-detect-unprofitable and -polly-no-early-exitTobias Grosser2015-10-061-2/+2
| | | | | | | | These flags are now always passed to all tests and need to be disabled if not needed. Disabling these flags, rather than passing them to almost all tests, significantly simplfies our RUN: lines. llvm-svn: 249422
* Use schedule trees to represent execution order of statementsTobias Grosser2015-07-141-9/+9
| | | | | | | | | | | | | | | | | | Instead of flat schedules, we now use so-called schedule trees to represent the execution order of the statements in a SCoP. Schedule trees make it a lot easier to analyze, understand and modify properties of a schedule, as specific nodes in the tree can be choosen and possibly replaced. This patch does not yet fully move our DependenceInfo pass to schedule trees, as some additional performance analysis is needed here. (In general schedule trees should be faster in compile-time, as the more structured representation is generally easier to analyze and work with). We also can not yet perform the reduction analysis on schedule trees. For more information regarding schedule trees, please see Section 6 of https://lirias.kuleuven.be/handle/123456789/497238 llvm-svn: 242130
* Remove target triples from test casesTobias Grosser2015-04-211-1/+0
| | | | | | | | I just learned that target triples prevent test cases to be run on other architectures. Polly test cases are until now sufficiently target independent to not require any target triples. Hence, we drop them. llvm-svn: 235384
* Update Polly tests to handle explicitly typed gep changes in LLVMDavid Blaikie2015-02-271-3/+3
| | | | llvm-svn: 230784
* ScopDetection: Only detect scops that have at least one read and one writeTobias Grosser2015-02-191-2/+2
| | | | | | | | | | Scops that only read seem generally uninteresting and scops that only write are most likely initializations where there is also little to optimize. To not waste compile time we bail early. Differential Revision: http://reviews.llvm.org/D7735 llvm-svn: 229820
* Add early exits for SCoPs we did not optimizeJohannes Doerfert2015-02-111-2/+2
| | | | | | | | | | | | | This allows us to skip ast and code generation if we did not optimize a SCoP and will not generate parallel or alias annotations. The initial heuristic to exit is simple but allows improvements later on. All failing test cases have been modified to disable early exit, thus to keep their coverage. Differential Revision: http://reviews.llvm.org/D7254 llvm-svn: 228851
* Do not fail in case we do not have valid dependencesTobias Grosser2014-02-231-0/+64
In case we do not have valid dependences, we do not run dead code elimination or the schedule optimizer. This fixes an infinite loop in the dead code elimination (PR12110). llvm-svn: 201982
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