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Bug#378599: [m68k] gcc-4.1 -O2 optimization problem



Package: gcc-4.1
Version: 4.1.1-8
Severity: important

gcc-4.1 seems to have an optimization problem at -O2 and -O1. If I
compile libgc -O2, then one of the tests segfaults. If I compile it -O0
then the self-tests run fine.

binutils showed a strange linker error until recompiled with -O0.

We now have about sixteen packages that end up with a segfault or an
illegal instruction. I haven't tried recompiling all these to verify that 
this is the same problem, but I will if it will help.

The problem is I have no idea how to isolate this bug. I'd be happy to
perform any tests you can direct or we can get you access to m68k
hardware if necessary.

In the meantime maybe it would be good to have gcc build itself or at 
least the bootstrap compiler -O0?

Thanks,

Stephen

-- 
Stephen R. Marenka     If life's not fun, you're not doing it right!
<stephen@marenka.net>

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