Cannot bootstrap compiler with 2.0.2 and --mm:orc due to codegen error about nim HOT 10 OPEN

Can anyone else reproduce this?

from nim.

I cannot reproduce it on Linux. You might need to remove bin/nim and bin/nim_temp before booting the compiler using an older binary.

from nim.

Can anyone else reproduce this?

I managed to reproduce your error using gcc 6.4.0 and Nim 2.0.2 for bootstrap devel. (note: it was necessary to comment out hint[LineTooLong]=off in nim.cfg)

Using csource_v2 this error does not occur.

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That's just the "var T" destructor changes. You're building Nim in a way that is not supported and I don't know if it's fixable.

Or maybe it's something else.

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(note: it was necessary to comment out hint[LineTooLong]=off in nim.cfg)

This probably refreshes the nimcache which reveals the problem. @ringabout This might be why it worked for you, I don't know if cleaning bin would change anything (the command that koch showed pointed to my 2.0.2 installation) but I did clean the nimcache.

That's just the var T destructor changes.

The csources_v2 version doesn't seem to have these changes, 2.0 does (which is almost a year ahead). So, the var T destructor changes could be breaking the Nim compiler, is how I interpreted it. If the Nim compiler codebase needs to be updated to be compatible with the var T destructor changes then I understand but does the compiler do anything that would violate them?

Also it's weird that booting in CI doesn't catch this, which is why I'm still not sure what's wrong.

Edit: Adding -f to the successive boot operations might show the problem in Cı, again because of the nimcache.

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@metagn Could you boot the compiler with the nightlies?

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Works on today's nightly. Still might be in version-2-0 branch, will try adding -f to boot CI as written above this won't do anything, the problem isn't whether the version-2-0 compiler can bootstrap itself, it's whether it can compile the devel compiler.

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The problem is that the version-2-0 compiler cannot compile the devel compiler. This is hard to test, let alone bisect (git checkout abcd1234; nim c compiler/nim; git checkout devel; compiler/nim c compiler/nim), so we could leave it alone and update csources later to a devel commit we know works, like today's nightly or later. It would still be nice if we had an idea of which commit we could backport so the var T destructor changes aren't broken on 2.0.

Also yeah, version-2-0 needs to define nimHasNoLineTooLong.

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It would still be nice if we had an idea of which commit we could backport so the var T destructor changes aren't broken on 2.0.

In order

#22147
#22167
#22207
#22225
#22810
#22975

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FWIW, I had the same error when I tried to update my devel version of Nim one month ago.

It worked once I downloaded nim binary from nightlies, and @Araq said to me it is because "you need to use a nim binary from csources_v2".

from nim.