Segmentation fault in cc1plus when compiling witty library

[Dmitry Pankratov]

Binary package hint: g++-4.4

Ubuntu 10.10 Beta AMD64
g++-4.4: 4.4.4-14ubuntu4

When compiling witty library (either a version from the repositories or the latest from their web site (wt-3.1.5)) gcc compiler crashes with segmentation fault.

The 4.5 version of the compiler does not crash.

Compiler output:
[ 0%] Building CXX object src/CMakeFiles/wt.dir/Wt/WAbstractArea.o
In member function ‘void Wt::WAbstractArea::setResource(Wt::WResource*)’:
cc1plus: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-4.4/README.Bugs> for instructions.
make[2]: *** [src/CMakeFiles/wt.dir/Wt/WAbstractArea.o] Error 1
make[1]: *** [src/CMakeFiles/wt.dir/all] Error 2
make: *** [all] Error 2

[Dmitry Pankratov (dremon)]

Isolated test case (fails to compile on the assert statement):

#include <cassert>

template <typename A>
struct Base {
    template <typename T, typename V>
    void foo(T* target, void (V::*method)())
    {
        assert(dynamic_cast<T*>(target));
    }
};

struct C { void foo() {} };

int main()
{
    C c;
    Base<int>().foo(&c, &C::foo);
    return 0;
}

[Dmitry Pankratov (dremon)]

Further pinpointed to a __PRETTY_FUNCTION__ being a source of the problem for the above shown template construct.

[Matthias Klose (doko)]

thanks for the reduced test case, but I am unable to repruduce this, with or without optimization options.

  g++-4.4 -c -O2 -g foo.cc

succeeds.

[Dmitry Pankratov (dremon)]

Try it without -O2 switch.

[Dmitry Pankratov (dremon)]

I have this under 10.10 AMD64:

g++-4.4 -c foo.cc
In member function ‘void Base<A>::foo(T*, void (V::*)()) [with T = C, V = C, A = int]’:
cc1plus: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-4.4/README.Bugs> for instructions.

[Matthias Klose (doko)]

thanks, and confirmed. works on 4.3, 4,5, current trunk and Debian 4.4, so would like to ask linaro to recheck this one.

[Michael Hope (michaelh1)]

Confirmed in plain gcc-linaro-4.4-2010.09-1:

michaelh@crucis:~/+junk/bugs$ ~/toolchains/gcc-linaro-4.4-2010.09-1-x86_64-lucid-cbuild3-orion/bin/g++ -g bug1.cc
In member function ‘void Base<A>::foo(T*, void (V::*)()) [with T = C, V = C, A = int]’:
cc1plus: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.

As expected, does not occur in gcc-linaro-4.5-2010.09-1

[Michael Hope (michaelh1)]

Confirmed fixed in gcc-linaro-4-4-2010.10-0