[PATCH] D45114: [coroutines] Add support for llvm.coro.noop intrinsics

[Gor Nishanov via Phabricator via llvm-commits]

GorNishanov created this revision.
GorNishanov added reviewers: EricWF, modocache, rnk, lewissbaker.

A recent addition to Coroutines TS (https://wg21.link/p0913) adds a pre-defined coroutine noop_coroutine that does nothing.
To implement this feature, we implemented an llvm.coro.noop intrinsic that returns a coroutine handle to a coroutine that does nothing when resumed or destroyed.


https://reviews.llvm.org/D45114

Files:
  docs/Coroutines.rst
  include/llvm/IR/Intrinsics.td
  lib/Transforms/Coroutines/CoroEarly.cpp
  lib/Transforms/Coroutines/Coroutines.cpp

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