[Bug tree-optimization/15741] New: ICE: SEGV in unchecked_make_edge

["green at redhat dot com" <gcc-bugzilla at gcc dot gnu dot org>]

I discovered this while building xerces from rhug. 

public final class  Base64 {
    public static String decode(String base64Data) {
        try {
            System.out.println ("Hello");
        } catch(Exception e) {
        }
        finally {
            return null;
        }
    }
}
                                                                                
$ gcj -O2 Base64.java  -c
Base64.java: In class `Base64':
Base64.java: In method `Base64.decode(java.lang.String)':
Base64.java:2: 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.


Here's a stack trace:

Program received signal SIGSEGV, Segmentation fault.
0x081d7d9f in unchecked_make_edge (src=0xf6d6c984, dst=0x0, flags=10)
    at /home/green/sources/jhbuild-src/gcc/gcc/cfg.c:284
284       e->pred_next = dst->pred;
(gdb) where
#0  0x081d7d9f in unchecked_make_edge (src=0xf6d6c984, dst=0x0, flags=10)
    at /home/green/sources/jhbuild-src/gcc/gcc/cfg.c:284
#1  0x081d7eaf in cached_make_edge (edge_cache=0x0, src=0xf6d6c984, dst=0x0,
    flags=10) at /home/green/sources/jhbuild-src/gcc/gcc/cfg.c:332
#2  0x081d7f2c in make_edge (src=0xf6d6c984, dest=0x0, flags=10)
    at /home/green/sources/jhbuild-src/gcc/gcc/cfg.c:346
#3  0x0812951d in make_eh_edge (region=0xf6d6a380, data=0xf6d88d3c)
    at /home/green/sources/jhbuild-src/gcc/gcc/tree-eh.c:1646
#4  0x08240170 in add_reachable_handler (info=0xfef52a30,
    lp_region=0xf6d6a380, region=0xf6d6a380)
    at /home/green/sources/jhbuild-src/gcc/gcc/except.c:2827
#5  0x082401b1 in reachable_next_level (region=0xf6d6a380, type_thrown=0x0,
    info=0xfef52a30) at /home/green/sources/jhbuild-src/gcc/gcc/except.c:2845
#6  0x08240547 in foreach_reachable_handler (region_number=2, is_resx=false,
    callback=0x81294ce <make_eh_edge>, callback_data=0xf6d88d3c)
    at /home/green/sources/jhbuild-src/gcc/gcc/except.c:3028
#7  0x08129641 in make_eh_edges (stmt=0xf6d88d3c)
    at /home/green/sources/jhbuild-src/gcc/gcc/tree-eh.c:1668
#8  0x08110bf3 in make_exit_edges (bb=0xf6d6c984)
    at /home/green/sources/jhbuild-src/gcc/gcc/tree-cfg.c:559
#9  0x081107b8 in make_edges ()
    at /home/green/sources/jhbuild-src/gcc/gcc/tree-cfg.c:442
#10 0x08110097 in build_tree_cfg (tp=0xf6df3fc4)
    at /home/green/sources/jhbuild-src/gcc/gcc/tree-cfg.c:173
#11 0x08110133 in execute_build_cfg ()
    at /home/green/sources/jhbuild-src/gcc/gcc/tree-cfg.c:196
#12 0x0812d9bf in execute_one_pass (pass=0x861e420)
    at /home/green/sources/jhbuild-src/gcc/gcc/tree-optimize.c:406
#13 0x0812da63 in execute_pass_list (pass=0x861e420)
    at /home/green/sources/jhbuild-src/gcc/gcc/tree-optimize.c:435
#14 0x0812da81 in execute_pass_list (pass=0x861e740)
    at /home/green/sources/jhbuild-src/gcc/gcc/tree-optimize.c:436
#15 0x0812dd9d in tree_rest_of_compilation (fndecl=0xf6df3f68, nested_p=false)
    at /home/green/sources/jhbuild-src/gcc/gcc/tree-optimize.c:530
#16 0x080caad2 in java_expand_body (fndecl=0xf6df3f68)
    at /home/green/sources/jhbuild-src/gcc/gcc/java/decl.c:1846
#17 0x084f46ae in cgraph_expand_function (node=0xf6d72f68)
    at /home/green/sources/jhbuild-src/gcc/gcc/cgraphunit.c:794
#18 0x084f652a in cgraph_expand_all_functions ()
    at /home/green/sources/jhbuild-src/gcc/gcc/cgraphunit.c:1668
#19 0x084f680b in cgraph_optimize ()
    at /home/green/sources/jhbuild-src/gcc/gcc/cgraphunit.c:1758
#20 0x080efb95 in java_parse_file (set_yydebug=0)
    at /home/green/sources/jhbuild-src/gcc/gcc/java/jcf-parse.c:1123
#21 0x08486e28 in compile_file ()
    at /home/green/sources/jhbuild-src/gcc/gcc/toplev.c:1653

-- 
           Summary: ICE: SEGV in unchecked_make_edge
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: green at redhat dot com
                CC: gcc-bugs at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15741