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quoted

As I mentioned earlier in this thread, GCC supports 2 types of
atomics. "Use GCC atomic builtins" does not help distinguish between
them. In "GCC's C11 atomic builtins" - "C11" indicates which atomics
we are using, "atomic builtins" indicates that we are NOT using APIs
from stdatomic.h

if you need a term to distinguish the two sets of atomics in gcc you can qualify
it with "Memory Model Aware" which is straight from the gcc manual.

"Memory model aware" sounds too generic. The same page [1] also makes it clear that the built-in functions match the requirements for the C11 memory model.

There are also several patches merged in the past which do not use the term "memory model aware". I would prefer to be consistent.

[1] https://gcc.gnu.org/onlinedocs/gcc/_005f_005fatomic-Builtins.html