That doesn't work because async functions need to be compiled for minimal stack usage (i.e. segmented stacks, packed variables), while non-async functions need to be compiled for minimal CPU usage (i.e. no stack checking or allocation, no variable packing, only one stack adjustment per function).
If you compile both for the same goal the system will have suboptimal memory usage or performance, and in general you don't know whether a function will be interrupted in advance if you don't have colored functions (also you can't move the stack if you have references unless you have a GC, which is terrible).
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That doesn't work because async functions need to be compiled for minimal stack usage (i.e. segmented stacks, packed variables), while non-async functions need to be compiled for minimal CPU usage (i.e. no stack checking or allocation, no variable packing, only one stack adjustment per function).
If you compile both for the same goal the system will have suboptimal memory usage or performance, and in general you don't know whether a function will be interrupted in advance if you don't have colored functions (also you can't move the stack if you have references unless you have a GC, which is terrible).