Thanks! I was thinking specifically of bugs that occur in the browser target but not the native build.
Given your experience that "99% of the bugs are not emscripten specific", I'm very impressed with how emscripten can retain the semantics of the native code across the conversion and optimisation process. Obviously thats what any compiler does, but in this case the target environment seems to me to be much more complex than a physical cpu: threads, memory management, etc.
> in this case the target environment seems to me to be much more complex than a physical cpu: threads, memory management, etc.
It compiles for a restricted subset of javascript. There are no threads (there are no threads in javascript itself in the first place), and it works around memory management (it sets up big typed arrays, and memory allocations are slices of that)
Given your experience that "99% of the bugs are not emscripten specific", I'm very impressed with how emscripten can retain the semantics of the native code across the conversion and optimisation process. Obviously thats what any compiler does, but in this case the target environment seems to me to be much more complex than a physical cpu: threads, memory management, etc.