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Aidanamite avatar Aidanamite commented on May 26, 2024

After many attempts to fix the issue I found what was needed to fix the issue by looking at compiler generated methods.

basically there were 2 issues that were causing the same error.
First issue, when replacing the code of a method that has the return type void, there must be a nop ret at the end, like you're returning nop.
Second issue, you must add exactly enough of the pop opcode to empty the stack before the ret (except for the value being returned of course)

So this was not a bug with harmony, just that the error messages appeared to be complaining about something being there when in fact they were complaining that it wasn't there

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pardeike avatar pardeike commented on May 26, 2024

Yes. You need to handle the stack very correctly. There is a static checker in CIL that complains otherwise. You can also only have a RET without a previous NOP.

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Aidanamite avatar Aidanamite commented on May 26, 2024

for me, I needed to have the nop. if I didn't, it had the error

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pardeike avatar pardeike commented on May 26, 2024

That makes no sense. According to the documentation a NOP is a filler used for debugging. It has no effect. Maybe you have weird jumps and the CIL static preflight check does not like that (documented behaviour). Or your runtime is seriously weird.

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