[PATCH] D69980: [ObjC] Override TailCallKind when lowering objc intrinsics

[Francis Visoiu Mistrih via Phabricator via llvm-commits]

thegameg created this revision.
thegameg added reviewers: rjmccall, ahatanak, pete.
Herald added subscribers: dexonsmith, hiraditya.
Herald added a project: LLVM.

The tail-call-kind-ness is known by the ObjCARC analysis and can be enforced while lowering the intrinsics to calls.

This allows us to get the requested tail calls at -O0 without trying to preserve the attributes throughout passes that change code even at -O0 ,like the Always Inliner, where the ObjCOpt pass doesn't run.


https://reviews.llvm.org/D69980

Files:
  llvm/lib/CodeGen/PreISelIntrinsicLowering.cpp
  llvm/test/Transforms/PreISelIntrinsicLowering/objc-arc.ll

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