gcj/198: gcj crashes when trying to compile this code!

[Mo DeJong]

The following reply was made to PR gcj/198; it has been noted by GNATS.

From: Mo DeJong <mdejong@cygnus.com>
To: java-gnats@sourceware.cygnus.com, apbianco@cygnus.com
Cc:  
Subject: Re: gcj/198: gcj crashes when trying to compile this code!
Date: Sun, 9 Apr 2000 05:50:37 -0700 (PDT)

 I was able to trim the gcj crasher described in pr 198 to the following.
 Could the download like I put up originally be replaced by this?
 I did not see any way to change anything in gnats once it was submitted.
 
 
 // File Regexp.java
 
 import java.util.*;
 import java.io.*;
 
 public class Regexp
 {
     public interface Filter
     {
 	public boolean filter(Object rs, StringBuffer sb);
     }
 
     private static class SubspecFilter implements Filter
     {
 	public boolean
 	filter(Object rs, StringBuffer sb)
 	{
 	    return true;
 	}
     }
 
     static class Compiler {}
 
     static class Match {
 	// Whats odd is that the core dump changes location
 	// if you coment out the following method!
 	void regtry(int off) {}
     }
 }
 
 
 
 
 The GDB info is the same.
 
 (gdb) bt
 #0  lookup_do (searched_class=0x8272ba8, searched_interface=0x82919b4, 
     method_name=0x8291be4, signature=0x8291d04, 
     signature_builder=0x8079fac <build_java_argument_signature>)
     at ../../../egcs/gcc/java/typeck.c:784
 #1  0x807a448 in lookup_argument_method2 (searched_class=0x82919b4, 
     method_name=0x8291be4, method_signature=0x8291d04)
     at ../../../egcs/gcc/java/typeck.c:733
 #2  0x805b578 in java_check_regular_methods (class_decl=0x8291a70) at
 ./parse.y:5927
 #3  0x805d870 in java_layout_classes () at ./parse.y:7159
 #4  0x805f65d in java_expand_classes () at ./parse.y:8245
 #5  0x807fdc2 in yyparse () at ../../../egcs/gcc/java/jcf-parse.c:897
 #6  0x8089312 in compile_file (name=0xbffff8f4 "Regexp.java")
     at ../../egcs/gcc/toplev.c:2391
 #7  0x808c254 in main (argc=2, argv=0xbffff794) at
 ../../egcs/gcc/toplev.c:4667
 
 (gdb) list
 779
 780           for (i = interface_len; i > 0; i--)
 781            {
 782              tree child = 
 783                TREE_VEC_ELT (TYPE_BINFO_BASETYPES
 (searched_interface), i);
 784              tree iclass = BINFO_TYPE (child);
 785
 786              /* If the superinterface hasn't been loaded yet, do so
 now.  */
 787              if (CLASS_FROM_SOURCE_P (iclass))
 788                safe_layout_class (iclass);
 
 (gdb) print child
 $1 = (union tree_node *) 0x0
 
 
 
 Mo Dejong
 Red Hat Inc.