[all-commits] [llvm/llvm-project] 21765a: [C++] [Coroutines] Assume the allocation doesn't r...

[Chuanqi Xu via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 21765af763f163e6c87f63d3c1dbc32b06119f60
      https://github.com/llvm/llvm-project/commit/21765af763f163e6c87f63d3c1dbc32b06119f60
  Author: Chuanqi Xu <yedeng.yd at linux.alibaba.com>
  Date:   2023-06-26 (Mon, 26 Jun 2023)

  Changed paths:
    M clang/lib/CodeGen/CGCoroutine.cpp
    M clang/test/CodeGenCoroutines/coro-alloc.cpp

  Log Message:
  -----------
  [C++] [Coroutines] Assume the allocation doesn't return nullptr

In case of 'get_return_object_on_allocation_failure' get declared, the
compiler is required to call 'operator new(size_t, nothrow_t)' and the
handle the failure case by calling
'get_return_object_on_allocation_failure()'. But the failure case should
be rare and we can assume the allocation is successful and pass the
information to the optimizer.