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[NewPM] Separate out alias analysis passes in opt
Summary:
This somewhat matches the --aa-pipeline option, which separates out any
AA analyses to make sure they run before other passes.
Makes check-llvm failures under new PM go from 2356 -> 2303.
AA passes are not handled by PassBuilder::parsePassPipeline() but rather
PassBuilder::parseAAPipeline(), which is why this fixes some failures.
Reviewers: asbirlea, hans, ychen, leonardchan
Subscribers: hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D82488