[Bug bootstrap/17489] New: Mainline failed to boostrap on i386, x86_64 and ia64

["hjl at lucon dot org" <gcc-bugzilla at gcc dot gnu dot org>]

Mainline failed to boostrap in stage2 on i386, x86_64 and ia64. Compiler
went to a infinite loop.

# ps -xa
...
12175 pts/0    S      0:00 ./xgcc -B./ -B/usr/gcc-3.5/x86_64-unknown-linux-gnu/b
12176 pts/0    R    256:24 ./cc1 -quiet -I. -I. -I/net/gnu/export/gnu/src/gcc/gc

The hanging command is

./xgcc -B./ -B/usr/gcc-3.5/x86_64-unknown-linux-gnu/bin/ -isystem
/usr/gcc-3.5/x86_64-unknown-linux-gnu/include -isystem
/usr/gcc-3.5/x86_64-unknown-linux-gnu/sys-include
-L/export/build/gnu/gcc/build-x86_64-linux/gcc/../ld -O2  -DIN_GCC  -W -Wall
-Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition
 -isystem ./include  -fPIC -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2
-D__GCC_FLOAT_NOT_NEEDED  -I. -I. -I/net/gnu/export/gnu/src/gcc/gcc/gcc
-I/net/gnu/export/gnu/src/gcc/gcc/gcc/.
-I/net/gnu/export/gnu/src/gcc/gcc/gcc/../include
-I/net/gnu/export/gnu/src/gcc/gcc/gcc/../libcpp/include  -DL_cmpdi2 -c
/net/gnu/export/gnu/src/gcc/gcc/gcc/libgcc2.c -o libgcc/./_cmpdi2.o

(gdb) att 12176
Attaching to program: /export/build/gnu/gcc/build-x86_64-linux/gcc/cc1, process
12176
Reading symbols from /lib64/tls/libc.so.6...done.
Loaded symbols for /lib64/tls/libc.so.6
Reading symbols from /lib64/ld-linux-x86-64.so.2...done.
Loaded symbols for /lib64/ld-linux-x86-64.so.2
0x0000000000448bd9 in tree_find_edge_insert_loc (e=0xa68928, bsi=0x7fbfffd150,
    new_bb=0x0) at tree-iterator.h:75
75        i->ptr = i->ptr->next;
(gdb) bt
#0  0x0000000000448bd9 in tree_find_edge_insert_loc (e=0xa68928,
    bsi=0x7fbfffd150, new_bb=0x0) at tree-iterator.h:75
During symbol reading, Incomplete CFI data; unspecified registers at
0x0000000000448b33.
During symbol reading, Incomplete CFI data; unspecified registers at
0x0000000000448b33.
During symbol reading, Incomplete CFI data; unspecified registers at
0x0000000000448b33.
During symbol reading, Incomplete CFI data; unspecified registers at
0x0000000000448b33.
During symbol reading, Incomplete CFI data; unspecified registers at
0x0000000000448b33.
During symbol reading, Incomplete CFI data; unspecified registers at
0x0000000000448b33.
During symbol reading, Incomplete CFI data; unspecified registers at
0x0000000000448b33.
During symbol reading, Incomplete CFI data; unspecified registers at
0x0000000000448b33.
During symbol reading, Incomplete CFI data; unspecified registers at
0x0000000000448b33.
During symbol reading, Incomplete CFI data; unspecified registers at
0x0000000000448b33.
During symbol reading, Incomplete CFI data; unspecified registers at
0x0000000000448b33.
During symbol reading, Incomplete CFI data; unspecified registers at
0x0000000000448b33.
#1  0x0000000000448d28 in bsi_commit_edge_inserts_1 (e=Variable "e" is not
available.
)
    at /net/gnu/export/gnu/src/gcc/gcc/gcc/tree-cfg.c:2954
During symbol reading, Incomplete CFI data; unspecified registers at
0x0000000000448cfe.
During symbol reading, Incomplete CFI data; unspecified registers at
0x0000000000448cfe.
During symbol reading, Incomplete CFI data; unspecified registers at
0x0000000000448cfe.
During symbol reading, Incomplete CFI data; unspecified registers at
0x0000000000448cfe.
During symbol reading, Incomplete CFI data; unspecified registers at
0x0000000000448cfe.
During symbol reading, Incomplete CFI data; unspecified registers at
0x0000000000448cfe.
During symbol reading, Incomplete CFI data; unspecified registers at
0x0000000000448cfe.
During symbol reading, Incomplete CFI data; unspecified registers at
0x0000000000448cfe.
#2  0x0000000000448dc8 in bsi_commit_edge_inserts (new_blocks=0x0)
    at /net/gnu/export/gnu/src/gcc/gcc/gcc/tree-cfg.c:2935
#3  0x000000000045fa9c in rewrite_trees (map=0xac3a50, values=0xab3dc0)
    at /net/gnu/export/gnu/src/gcc/gcc/gcc/tree-outof-ssa.c:1939
#4  0x0000000000461747 in rewrite_out_of_ssa ()
    at /net/gnu/export/gnu/src/gcc/gcc/gcc/tree-outof-ssa.c:2009
#5  0x0000000000452172 in execute_pass_list (pass=0x9b0ce0)
    at /net/gnu/export/gnu/src/gcc/gcc/gcc/tree-optimize.c:501
#6  0x0000000000452195 in execute_pass_list (pass=0x9b0b60)
    at /net/gnu/export/gnu/src/gcc/gcc/gcc/tree-optimize.c:537
#7  0x0000000000452386 in tree_rest_of_compilation (fndecl=0x2a97ee5c40,
    nested_p=0 '\0') at /net/gnu/export/gnu/src/gcc/gcc/gcc/tree-optimize.c:618
#8  0x0000000000412ace in c_expand_body (fndecl=0x2a97ee5c40)
    at /net/gnu/export/gnu/src/gcc/gcc/gcc/c-decl.c:6443
#9  0x00000000006f037f in cgraph_expand_function (node=0x2a97ef97e0)
    at /net/gnu/export/gnu/src/gcc/gcc/gcc/cgraphunit.c:1040
#10 0x00000000006f049e in cgraph_expand_all_functions ()
    at /net/gnu/export/gnu/src/gcc/gcc/gcc/cgraphunit.c:2706
#11 0x00000000006f16a4 in cgraph_optimize ()
---Type <return> to continue, or q <return> to quit---
    at /net/gnu/export/gnu/src/gcc/gcc/gcc/cgraphunit.c:2817
#12 0x0000000000413e39 in c_write_global_declarations ()
    at /net/gnu/export/gnu/src/gcc/gcc/gcc/c-decl.c:7034
#13 0x00000000006b451a in toplev_main (argc=Variable "argc" is not available.
)
    at /net/gnu/export/gnu/src/gcc/gcc/gcc/toplev.c:1003
#14 0x000000361bd1bfda in __libc_start_main () from /lib64/tls/libc.so.6
#15 0x000000000040250a in _start ()

-- 
           Summary: Mainline failed to boostrap on i386, x86_64 and ia64
           Product: gcc
           Version: 4.0.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: bootstrap
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: hjl at lucon dot org
                CC: gcc-bugs at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17489