[Bug other/53615] New: Buffer overflow in the compiler?

[gjl at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53615

             Bug #: 53615
           Summary: Buffer overflow in the compiler?
    Classification: Unclassified
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: other
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: gjl@gcc.gnu.org
              Host: x86-linux-gnu, mingw32
            Target: avr
             Build: x86-linux-gnu


This is a bug I observe with the GCC 4.7.1 release snapshot SVN 188257.

== Command line ==

$ avr-gcc -c wek.c -mmcu=atmega2561 -O3 -mstrict-X

== configure ==

Target: avr
Configured with: ../../gcc.gnu.org/gcc-4_7-branch/configure --target=avr
--prefix=/local/gnu/install/gcc-4.7 --disable-nls --with-dwarf2
--enable-languages=c,c++ --enable-target-optspace=yes
Thread model: single
gcc version 4.7.1 20120606 (prerelease) (GCC)

GNU C (GCC) version 4.7.1 20120606 (prerelease) (avr)
        compiled by GNU C version 4.3.2 [gcc-4_3-branch revision 141291], GMP
version 4.3.2, MPFR version 2.4.2, MPC version 0.8.2

The problem can also be seen with canadian cross configured as:

../../gcc.gnu.org/gcc-4_7-branch/configure --target=avr
--prefix=/local/gnu/install/gcc-4.7-mingw32 --host=i386-mingw32
--build=i686-linux-gnu --enable-languages=c,c++ --disable-nls --disable-shared
--with-dwarf2