Follow-up Comment #11, bug #42717 (project gnustep):
No crash if I apply your changes in r38003.
If it is a compiler bug, most probably it is present in earlier versions as
this bug was reported last year when 4.9 was not released yet. However, it
may be that GCC is taking advantage of the "undefined behaviour" scenario and
is optimizing in a way that leads to a crash. Very often code that works with
-O0 but fails with -O2 reveals a bug in the code, not the compiler. In any
case, if it is a compiler bug, it should be haunted down and fixed rather than
the code adapted to cope with it. IMHO. It might be difficult to write a
self-contained example exposing the bug, though.
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