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f3091bf4cf
ScopInfo's normal profitability heuristic considers SCoPs where all statements have scalar writes as not profitably optimizable and invalidate the SCoP in that case. However, -polly-delicm and -polly-simplify may be able to remove some of the scalar writes such that the flag -polly-unprofitable-scalar-accs=false allows disabling that part of the heuristic. In cases where DeLICM (or other passes after ScopInfo) are not successful in removing scalar writes, the SCoP is still not profitably optimizable. The schedule optimizer would again try computing another schedule, resulting in slower compilation. The -polly-prune-unprofitable pass applies the profitability heuristic again before the schedule optimizer Polly can still bail out even with -polly-unprofitable-scalar-accs=false. Differential Revision: https://reviews.llvm.org/D31033 llvm-svn: 298080 |
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| .. | ||
| CodeGen/OpenMP | ||
| DeadCodeElimination | ||
| DeLICM | ||
| DependenceInfo | ||
| FlattenSchedule | ||
| GPGPU | ||
| Isl | ||
| PruneUnprofitable | ||
| ScheduleOptimizer | ||
| ScopDetect | ||
| ScopDetectionDiagnostics | ||
| ScopInfo | ||
| Simplify | ||
| Unit | ||
| UnitIsl | ||
| CMakeLists.txt | ||
| create_ll.sh | ||
| lit.cfg | ||
| lit.site.cfg.in | ||
| polly.ll | ||
| README | ||
| update_check.py | ||
place tests here