[Bug java/23620] New: Segfault compiling inner interfaces

[wmahan at gmail dot com]

I'm getting an ICE with gcc 4.0.1 that I've reduced to the following test case
with three classes, in A.java, B.java, and C.java, respectively:

public class A  {
    public interface AInt { void methA(); }
}
public class B implements A.AInt {
    void methA() { }
    public interface BInt { void methB(); }
}
public class C implements B.BInt {
    void methB() { }
}

$ gcj -C A.java
$ gcj -C B.java
$ gcj -C C.java
C.java:0: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
For Debian GNU/Linux specific bug reporting instructions,
see <URL:file:///usr/share/doc/gcc-4.0/README.Bugs>.

However, doing

$ gcj -C A.java B.java C.java

gives no error.

Sorry if this is already known, but I couldn't find a similar bug already reported.

$ gcc-4.0 -v
Using built-in specs.
Target: i486-linux-gnu
Configured with: ../src/configure -v
--enable-languages=c,c++,java,f95,objc,ada,treelang --prefix=/usr
--enable-shared --with-system-zlib --libexecdir=/usr/lib --enable-nls
--without-included-gettext --enable-threads=posix --program-suffix=-4.0
--enable-__cxa_atexit --enable-libstdcxx-allocator=mt --enable-clocale=gnu
--enable-libstdcxx-debug --enable-java-gc=boehm --enable-java-awt=gtk
--with-java-home=/usr/lib/jvm/java-1.4.2-gcj-4.0-1.4.2.0/jre --enable-mpfr
--disable-werror --enable-checking=release i486-linux-gnu
Thread model: posix
gcc version 4.0.1 (Debian 4.0.1-2)

-- 
           Summary: Segfault compiling inner interfaces
           Product: gcc
           Version: 4.0.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: java
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: wmahan at gmail dot com
                CC: gcc-bugs at gcc dot gnu dot org,java-prs at gcc dot gnu
                    dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23620