Re: Lilypond miscompiled on Fedora 17

[David Kastrup]

Pavel Roskin <address@hidden> writes:

> Quoting Pavel Roskin <address@hidden>:
>
>> Fedora 17 i386 has exactly the same problem.
>>
>> Let me try to find the file that needs to be compiled with -O1.  I have
>> some ideas how to bisect the problem.  I want to write a wrapper around
>> g++ that starts adding -O1 to the command line after N invocations.
>
> The problematic file is simultaneous-music-iterator.cc

> I'll try to identify the function tomorrow.

That would be welcome.  I looked through the function right now and saw
no obvious problematic candidate.

simultanous-music-iterator.cc is short enough to look through the
generated code manually.  If you compile it (of course with all other
relevant options) and options -S (for generating assembly source) and
-fverbose-asm then I should have a reasonable chance of finding problems
in the generated code by manual inspection.

This is sort of curious since the actual error message is generated in
timing-translator.cc, after looking at the current and the previous
moment in the global context.

On the other hand, the output makes it likely that the shorter note
advances time too much for some reasons.

-- 
David Kastrup