LoopIdiom: Replace custom dependence analysis with LoopDependenceAnalysis.
Requires a lot less code and complexity on loop-idiom's side and the more
precise analysis can catch more cases, like the one I included as a test case.
This also fixes the edge-case miscompilation from PR9481. I'm not entirely
sure that all cases are handled that the old checks handled but LDA will
certainly become smarter in the future.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166390
91177308-0d34-0410-b5e6-
96231b3b80d8
projects / oota-llvm.git / commit