EM++ error: Unexpected arg0 type ((select unexpected expression type

[fabo92]

I've got a weird issue coming after the SDK update (I was using the old backend and everything was running fine).

This error appears:

Fatal: Unexpected arg0 type ((select
unexpected expression type
UNREACHABLE executed at /b/s/w/ir/cache/builder/emscripten-releases/binaryen/src/wasm-traversal.h:100!

This is quite weird, because it's not giving me any info and I discovered (using dichotomous method haha) that the culprit "line" was a simply object instantiation (and the constructor is empty too)

s_defaultLoader = new CStandardLoader();

Removing this line, the code compiles... so I tried to change the class entirely, removing interfaces and everything weird inside it... but the error appears again, and it's not even related to that line anymore, but to something else... so this seems to be an unpredictable error, at least for now...

Do you have any suggestions or comments? Any help would be appreciated! Thanks in advance!

[kripken]

This sounds like an unknown binaryen bug. If you can provide the wasm file that fails we can take a look.

[fabo92]

@kripken I'll try to replicate the same behaviour in a handled/contained environment and I'll come back to you with the needed artifacts... Unfortunately it's not that easy, the entire project is quite big and after spending some time trying to mock the unneccessary components I didn't replicate it yet... But I'm on it, I'll come back asap

[sbc100]

This looks related to recent EM_ASM / EM_JS changes. Can you try re-building all your object files and libraries. If it goes away then my hunch is correct.

We probably should invent some way to signal that old object files are not longer acceptable when we make this kinds of changed.

[stale]

This issue has been automatically marked as stale because there has been no activity in the past year. It will be closed automatically if no further activity occurs in the next 30 days. Feel free to re-open at any time if this issue is still relevant.