[PATCH] D31590: [coroutines] Add support for deallocation elision

[Gor Nishanov via Phabricator via cfe-commits]

GorNishanov created this revision.

Wrap deallocation code with:

  if (auto *mem = coro.free()) Deallocate

When backend decides to elide allocations it will replace coro.free with nullptr to suppress deallocation code.


https://reviews.llvm.org/D31590

Files:
  lib/CodeGen/CGCoroutine.cpp
  test/CodeGenCoroutines/coro-alloc.cpp

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