[PATCH] D70634: Ignore Unknown dependencies using vectorize.ivdep metadata

[Yashas Andaluri via Phabricator via llvm-commits]

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Comment at: llvm/docs/LangRef.rst:5492
 
+'``llvm.loop.vectorize.ivdep.enable``' Metadata
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
----------------
Meinersbur wrote:
> [serious] Please also describe the relationship to `llvm.mem.parallel_loop_access`.
`llvm.loop.parallel_accesses` metadata indicates that no dependencies exist between instructions marked with `llvm.access.group` metadata and can be executed in parallel, whereas `llvm.loop.vectorize.ivdep.enable` indicates that Unknown dependencies are safe for vectorization.


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