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* [Bug middle-end/18005] New: ICE in fold-const.c/fold
@ 2004-10-15  5:26 aj at gcc dot gnu dot org
  2004-10-15  5:27 ` [Bug middle-end/18005] " aj at gcc dot gnu dot org
                   ` (9 more replies)
  0 siblings, 10 replies; 11+ messages in thread
From: aj at gcc dot gnu dot org @ 2004-10-15  5:26 UTC (permalink / raw)
  To: gcc-bugs

I get now an ICE compiling glibc.  The error is in 20041014 but also in 
20041013 and has been introduced during the last 5 days or so (or glibc 
has changed in a way to trigger this). 
 
aj@gromit:/cvs/libc/stdlib> /opt/gcc/4.0-devel/libexec/gcc/x86_64-suse-linux-gnu/4.0.0/cc1-fpreprocessed 
tst-random.i -quiet -dumpbase tst-random.c -mtune=k8 
-auxbase-strip /builds/glibc/4.0/stdlib/tst-random.o -O2  -std=gnu99 -version 
-o tst-random.s 
GNU C version 4.0.0 20041014 (experimental) (x86_64-suse-linux-gnu) 
        compiled by GNU C version 4.0.0 20041014 (experimental). 
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096 
tst-random.i: In function 'main': 
tst-random.i:2738: 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. 
 
Running under gdb shows: 
(gdb) r -fpreprocessed tst-random.i -quiet -dumpbase tst-random.c -mtune=k8 
-auxbase-strip/builds/glibc/4.0/stdlib/tst-random.o -O2  -std=gnu99 -version -o 
tst-random.s 
GNU C version 4.0.0 20041014 (experimental) (x86_64-suse-linux-gnu) 
        compiled by GNU C version 4.0.0 20041014 (experimental). 
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096 
 
Program received signal SIGSEGV, Segmentation fault. 
0x00000000005b1b94 in fold (expr=0x2a95b67a50) 
at /cvs/gcc/gcc/fold-const.c:6051 
6051                STRIP_NOPS (op); 
(gdb) bt 
#0  0x00000000005b1b94 in fold (expr=0x2a95b67a50) 
at /cvs/gcc/gcc/fold-const.c:6051 
#1  0x00000000005cb832 in extract_muldiv (t=Variable "t" is not available. 
) at /cvs/gcc/gcc/fold-const.c:5313 
#2  0x00000000005b4655 in fold (expr=0x2a95b67a00) 
at /cvs/gcc/gcc/fold-const.c:7571 
#3  0x00000000007bb9d6 in analyze_array_indexes (loop=0xb79850, 
access_fns=0xb78268, ref=Variable "ref" is not available. 
) 
    at /cvs/gcc/gcc/tree-data-ref.c:519 
#4  0x00000000007becdd in analyze_array (stmt=0x2a95b01d20, ref=0x2a95afabd0, 
    is_read=0 '\0') at /cvs/gcc/gcc/tree-data-ref.c:596 
#5  0x00000000007bf069 in find_data_references_in_loop (loop=0xb79710, 
    datarefs=0x7fbfffe860) at /cvs/gcc/gcc/tree-data-ref.c:2236 
#6  0x00000000004d70b6 in estimate_numbers_of_iterations (loops=0xb56d00) 
    at /cvs/gcc/gcc/tree-ssa-loop-niter.c:1005 
#7  0x00000000004d5615 in tree_ssa_loop_bounds () 
at /cvs/gcc/gcc/tree-ssa-loop.c:308 
#8  0x000000000047ca9d in execute_pass_list (pass=0xa8be60) 
    at /cvs/gcc/gcc/tree-optimize.c:503 
#9  0x000000000047cb29 in execute_pass_list (pass=0xa8c100) 
    at /cvs/gcc/gcc/tree-optimize.c:539 
#10 0x000000000047cb29 in execute_pass_list (pass=0xa87540) 
    at /cvs/gcc/gcc/tree-optimize.c:539 
#11 0x000000000047cd6f in tree_rest_of_compilation (fndecl=0x2a95aff380) 
    at /cvs/gcc/gcc/tree-optimize.c:633 
#12 0x000000000041a10b in c_expand_body (fndecl=0x2a95aff380) 
    at /cvs/gcc/gcc/c-decl.c:6370 
#13 0x00000000007ae32e in cgraph_expand_function (node=0x2a95b100e0) 
    at /cvs/gcc/gcc/cgraphunit.c:1046 
#14 0x00000000007b1c14 in cgraph_optimize () at /cvs/gcc/gcc/cgraphunit.c:2728 
#15 0x000000000075bb55 in toplev_main (argc=Variable "argc" is not available. 
) at /cvs/gcc/gcc/toplev.c:999 
#16 0x0000002a9568900d in __libc_start_main () from /lib64/tls/libc.so.6 
#17 0x00000000004023ca in _start () at start.S:113 
(gdb) p expr 
$1 = 0x2a95b67a50 
(gdb) pge 
(bit_size_type) iD.3284_20 * 1 
(gdb) p op 
$2 = 0x2a95af53c0 
(gdb) pt op 
 <nop_expr 0x2a95af53c0 
    type <integer_type 0x2a95896460 bit_size_type public unsigned sizetype TI 
        size <integer_cst 0x2a958a7150 constant invariant 128> 
        unit size <integer_cst 0x2a958a7180 constant invariant 16> 
        align 128 symtab 0 alias set -1 precision 68 min <integer_cst 
0x2a958a7900 0> max <integer_cst 0x2a958a7930 0xfffffffffffffffff>> 
    readonly 
    arg 0 <ssa_name 0x2a95b26780 nothrow var <var_decl 0x2a95b021c0 i> def_stmt 
<ssa_name 0x2a95b26730> 
        version 20 in-free-list>>

-- 
           Summary: ICE in fold-const.c/fold
           Product: gcc
           Version: 4.0.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: middle-end
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: aj at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: x86_64-linux-gnu
  GCC host triplet: x86_64-linux-gnu
GCC target triplet: x86_64-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18005


^ permalink raw reply	[flat|nested] 11+ messages in thread
end of thread, other threads:[~2004-11-12  1:08 UTC | newest]

Thread overview: 11+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2004-10-15  5:26 [Bug middle-end/18005] New: ICE in fold-const.c/fold aj at gcc dot gnu dot org
2004-10-15  5:27 ` [Bug middle-end/18005] " aj at gcc dot gnu dot org
2004-10-15 12:55 ` [Bug middle-end/18005] [4.0 Regression] " pinskia at gcc dot gnu dot org
2004-10-15 13:26 ` pinskia at gcc dot gnu dot org
2004-10-16 15:37 ` [Bug middle-end/18005] [4.0 Regression] ICE with simple loop reichelt at gcc dot gnu dot org
2004-10-18 22:55 ` [Bug middle-end/18005] [4.0 Regression] ICE with simple loop with VLA pinskia at gcc dot gnu dot org
2004-10-19  4:14 ` pinskia at gcc dot gnu dot org
2004-10-19 10:03 ` sebastian dot pop at cri dot ensmp dot fr
2004-10-31 17:37 ` phython at gcc dot gnu dot org
2004-11-12  0:13 ` cvs-commit at gcc dot gnu dot org
2004-11-12  1:08 ` pinskia at gcc dot gnu dot org

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