'HALO support on recent compilers for C++ coroutines
I have read the article Using Coroutine TS with zero dynamic allocations, and the author insists that HALO would work for coroutines and he provides an godbolt link which shows generator example HALO applied with clang 5.0.
However, with more recent version of clang(clang 13.0.1 on godbolt) I can see calls to operator new. As a matter of fact, I cannot find any recent compiler which supports HALO for corouine. I have tested on MSVC 2019/2022, GCC 11.2 and all assembly shows calls to operator new.
Is it true I can rely on HALO as the author insisted in that article? For instance, RVO was pretty reliable even before C++17 which brings copy ellision into standard. What should I care to expect HALO for my coroutines?
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