This commit splits the generic part of `LoopInfo` into separate files.
These new `GenericLoopInfo` files are located in `llvm/Support` to be inline
with `GenericDomTree`.
Furthermore, this change ensures that MLIR's Bazel build does not have
to link against `LLVMAnalysis` just to use these template headers.
Depends on D148219
Reviewed By: ftynse
Differential Revision: https://reviews.llvm.org/D148235
This commit moves the CFGLoopInfo instantiation into the C++ file to
ensure that it is only compiled once. Instantiating the template
explicitly revealed two missing functions that this commit also adds.
Reviewed By: ftynse
Differential Revision: https://reviews.llvm.org/D148219
This commit introduces an instantiation of LLVM's LoopInfo for CFGs in
MLIR. To test the LoopInfo, a test pass is added the checks the analysis
results for a set of CFGs.
Reviewed By: ftynse
Differential Revision: https://reviews.llvm.org/D147323
