[PATCH] D20658: MemorySSA: Revert r269678 and r268068; replace with special casing in MemorySSA.
Daniel Berlin via llvm-commits
llvm-commits at lists.llvm.org
Wed May 25 20:22:18 PDT 2016
On Wed, May 25, 2016 at 6:52 PM, Peter Collingbourne <peter at pcc.me.uk>
> pcc created this revision.
> pcc added reviewers: dberlin, chandlerc, hfinkel, reames, sanjoy, boazo,
> majnemer, gberry.
> pcc added a subscriber: llvm-commits.
> It turns out that too many passes are relying on alias analysis results
> for control dependencies. Until we fix that by introducing a more accurate
> modelling of control dependencies, special case assume in MemorySSA
> Also introduce tests to ensure we don't regress the FunctionAttrs or LICM
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