llvm-project/polly/unittests/Flatten/CMakeLists.txt

add_polly_unittest(FlattenTests
  FlattenTest.cpp
  )
Add -polly-flatten-schedule pass. The -polly-flatten-schedule pass reduces the number of scattering dimensions in its isl_union_map form to make them easier to understand. It is not meant to be used in production, only for debugging and regression tests. To illustrate, how it can make sets simpler, here is a lifetime set used computed by the porposed DeLICM pass without flattening: { Stmt_reduction_for[0, 4] -> [0, 2, o2, o3] : o2 < 0; Stmt_reduction_for[0, 4] -> [0, 1, o2, o3] : o2 >= 5; Stmt_reduction_for[0, 4] -> [0, 1, 4, o3] : o3 > 0; Stmt_reduction_for[0, i1] -> [0, 1, i1, 1] : 0 <= i1 <= 3; Stmt_reduction_for[0, 4] -> [0, 2, 0, o3] : o3 <= 0 } And here the same lifetime for a semantically identical one-dimensional schedule: { Stmt_reduction_for[0, i1] -> [2 + 3i1] : 0 <= i1 <= 4 } Differential Revision: https://reviews.llvm.org/D24310 llvm-svn: 280948 2016-09-08 23:02:36 +08:00			`add_polly_unittest(FlattenTests`
			`FlattenTest.cpp`
			`)`