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Date: Sun, 16 Jan 2005 18:42:00 -0000
From: "kon at iki dot fi" <gcc-bugzilla@gcc.gnu.org>
To: java-prs@gcc.gnu.org
Message-ID: <20050116184158.19471.kon@iki.fi>
Reply-To: gcc-bugzilla@gcc.gnu.org
Subject: [Bug java/19471] New: ICE when anonymous class extends inner class of another class
X-Bugzilla-Reason: CC
X-SW-Source: 2005-q1/txt/msg00122.txt.bz2
List-Id: <java-prs.sourceware.org>

A GCC checked out from CVS on 2005-01-03 gets a segmentation fault
when compiling the following code.  Jikes compiles it all right,
generating an <init> method that takes references to both First and
Second as parameters.  Kaffe attempts the same but fails verification.

class First {
    class Inner {}
};

class Second {
    void fn(First first) {
        first.new Inner() {
                void crash() {}
            };
    }
}

$ gcj -v -C AnonExt.java
Using built-in specs.
Configured with: /home/kalle/src/FOREIGN-CVS/gcc/configure --prefix=/home/kalle
--exec-prefix=/home/kalle/i386-pc-linux-gnu --host=i386-pc-linux-gnu
--build=i386-pc-linux-gnu
Thread model: posix
gcc version 4.0.0 20050103 (experimental)

/home/kalle/stow/gcc/i386-pc-linux-gnu/bin/../libexec/gcc/i386-pc-linux-gnu/4.0.0/jc1 AnonExt.java -quiet -dumpbase AnonExt.java -auxbase-strip NONE -g1 -version
-fsyntax-only -femit-class-files -o /dev/null
GNU Java version 4.0.0 20050103 (experimental) (i386-pc-linux-gnu)
	compiled by GNU C version 4.0.0 20041023 (experimental).
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
Class path starts here:
    ./
   
/home/kalle/stow/gcc/i386-pc-linux-gnu/bin/../lib/gcc/../../../share/java/libgcj-4.0.0.jar/ (system) (zip)
AnonExt.java:10: 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.

If I remove the crash() function, then GCC succeeds in compiling the
source.  I haven't checked the resulting bytecode, though.

-- 
           Summary: ICE when anonymous class extends inner class of another
                    class
           Product: gcc
           Version: 4.0.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: java
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: kon at iki dot fi
                CC: gcc-bugs at gcc dot gnu dot org,java-prs at gcc dot gnu
                    dot org
 GCC build triplet: i386-pc-linux-gnu
  GCC host triplet: i386-pc-linux-gnu
GCC target triplet: i386-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19471