[Cuis-dev] [help] genBranchPopFalse: distance out of range

[Luciano Notarfrancesco]

Looks like a block becomes too large after you insert the message sends to
record coverage, and it fails to get inlined because the jump exceeds the
limit of 1024. But I guess you already knew that. Maybe instead of
signaling an exception, the compiler should compile it without inlining in
the case it exceeds the jump limit, I wonder why it doesn’t do that.

On Sun, 4 Dec 2022 at 04:41 Nicolás Papagna Maldonado via Cuis-dev <
cuis-dev at lists.cuis.st> wrote:

> Hi folks,
>
> Recently, Hernan let me know about a method that was not covered correctly
> by my code coverage tool: https://github.com/npapagna/cuis-code-coverage
>
> After closer inspection, I found out that the tool fails to compile the
> method with the additional tracing messages that collect the coverage
> information for each node.
> I don't know much about the internals of the compiler, but my hunch is
> that the method might be "too big" to be compiled/fitted in what compile
> methods allow.
>
> The error raised is "Error: genBranchPopFalse: distance index 1154 is out
> of range 0 to 1023" (screenshot attached).
>
> Does anyone know what could be going on here?
> Any pointers will be greatly appreciated.
>
> Best,
> Nico PM
>
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