[PATCH] D31586: [coroutines] Replace all coro.frame builtins with an SSA value of coro.begin

[Gor Nishanov via Phabricator via cfe-commits]

GorNishanov created this revision.

SemaCoroutine forms expressions referring to the coroutine frame of the enclosing coroutine using coro.frame builtin.
During codegen, we emit llvm.coro.begin intrinsic that returns the address of the coroutine frame.
When coro.frame is emitted, we replace it with SSA value of coro.begin.


https://reviews.llvm.org/D31586

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

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