[PATCH] D23993: [Coroutines] Part 10: Add coroutine promise support.

[Gor Nishanov via llvm-commits]

GorNishanov created this revision.
GorNishanov added a reviewer: majnemer.
GorNishanov added a subscriber: llvm-commits.
Herald added a subscriber: mehdi_amini.

1) CoroEarly now lowers llvm.coro.promise intrinsic that allows to obtain
a coroutine promise pointer from a coroutine frame and vice versa.

2) CoroFrame now interprets Promise argument of llvm.coro.begin to
place CoroutinPromise alloca at a deterministic offset from the coroutine frame.

Now, the coroutine promise example from docs\Coroutines.rst compiles and produces expected result (see test/Transform/Coroutines/ex4.ll).


https://reviews.llvm.org/D23993

Files:
  lib/Transforms/Coroutines/CoroEarly.cpp
  lib/Transforms/Coroutines/CoroFrame.cpp
  lib/Transforms/Coroutines/CoroInstr.h
  lib/Transforms/Coroutines/CoroInternal.h
  lib/Transforms/Coroutines/Coroutines.cpp
  test/Transforms/Coroutines/ex4.ll

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