[Bug c/21916] New: [4.1 Regression] ICE: segmentation fault in stage3

[Bug c/21916] New: [4.1 Regression] ICE: segmentation fault in stage3

[danglin at gcc dot gnu dot org]

./xgcc -B./ -B/home/dave/opt/gnu/gcc/gcc-4.1.0/hppa-linux/bin/ -isystem /home/da
ve/opt/gnu/gcc/gcc-4.1.0/hppa-linux/include -isystem /home/dave/opt/gnu/gcc/gcc-
4.1.0/hppa-linux/sys-include -L/home/dave/gnu/gcc-4.0/objdir/gcc/../ld -O2 -DIN_
GCC    -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wold-s
tyle-definition  -isystem ./include  -I. -I. -I../../gcc/gcc -I../../gcc/gcc/. -
I../../gcc/gcc/../include -I../../gcc/gcc/../libcpp/include   -g0 -finhibit-size
-directive -fno-inline-functions -fno-exceptions -fno-zero-initialized-in-bss -f
no-unit-at-a-time  \
   -c ../../gcc/gcc/crtstuff.c -DCRT_BEGIN \
  -o crtbegin.o
In file included from /usr/include/stdio.h:828,
                 from ../../gcc/gcc/tsystem.h:90,
                 from ../../gcc/gcc/crtstuff.c:62:
/usr/include/bits/stdio.h: In function 'vprintf':
/usr/include/bits/stdio.h:36: internal compiler error: Segmentation fault

(gdb) p (char *)$r26
$5 = 0x24 <Address 0x24 out of bounds>
(gdb) p (char *)$r25
$6 = 0x5155f0 "/usr/include/bits/stdio.h"
(gdb) bt
#0  0x4093008c in strcmp () from /lib/libc.so.6
#1  0x002f6044 in annotate_with_file_line (node=0x400094e0,
    file=0x5155f0 "/usr/include/bits/stdio.h", line=36)
    at ../../gcc/gcc/tree.c:2896
#2  0x002f622c in annotate_with_locus (node=Variable "node" is not available.
) at ../../gcc/gcc/tree.c:2927
#3  0x000749fc in c_parser_statement_after_labels (parser=0x40010078)
    at ../../gcc/gcc/c-parser.c:3565
#4  0x00075bc0 in c_parser_compound_statement_nostart (parser=0x40010078)
    at ../../gcc/gcc/c-parser.c:3299
#5  0x0007bd5c in c_parser_compound_statement (parser=0x40010078)
    at ../../gcc/gcc/c-parser.c:3174
#6  0x00074748 in c_parser_declaration_or_fndef (parser=0x40010078,
    fndef_ok=1 '\001', empty_ok=Variable "empty_ok" is not available.
) at ../../gcc/gcc/c-parser.c:1294
#7  0x0007c90c in c_parser_external_declaration (parser=0x40010078)
    at ../../gcc/gcc/c-parser.c:1070
#8  0x0007d904 in c_parse_file () at ../../gcc/gcc/c-parser.c:976
#9  0x0006827c in c_common_parse_file (set_yydebug=Variable "set_yydebug" is not 
available.
)
    at ../../gcc/gcc/c-opts.c:1118
#10 0x002f3c4c in toplev_main (argc=Variable "argc" is not available.
) at ../../gcc/gcc/toplev.c:966
#11 0x408ca51c in __libc_start_main () from /lib/libc.so.6
#12 0x0001a848 in _start () at ../sysdeps/hppa/elf/start.S:67
(gdb)

  if (EXPR_LOCUS (node)
      && (EXPR_FILENAME (node) == file
          || ! strcmp (EXPR_FILENAME (node), file))
      && EXPR_LINENO (node) == line)

EXPR_FILENAME (node) is garbage (i.e., the $r26 argument register
points to page 0 in the call to strcmp).

I get a similar error when I try to dump the tree:


Breakpoint 3, annotate_with_file_line (node=0x400094e0,
    file=0x5155f0 "/usr/include/bits/stdio.h", line=36)
    at ../../gcc/gcc/tree.c:2896
2896      if (EXPR_LOCUS (node)
(gdb) p debug_tree (node)
 <return_expr 0x400094e0
    type <void_type 0x40018460 void VOID
        align 8 symtab 0 alias set -1
        pointer_to_this <pointer_type 0x400184d0>>
    side-effects
    arg 0 <modify_expr 0x40010460
        type <integer_type 0x4000e380 int public SI
            size <integer_cst 0x400042e8 constant invariant 32>
            unit size <integer_cst 0x40004078 constant invariant 4>
            align 32 symtab 0 alias set -1 precision 32 min <integer_cst 
0x400042a0 -2147483648> max <integer_cst 0x400042b8 2147483647>
            pointer_to_this <pointer_type 0x400188c0>>
        side-effects
        arg 0 <result_decl 0x400c0f50 D.1805 type <integer_type 0x4000e380 int>
            ignored in_system_header SI file /usr/include/bits/stdio.h line 35 
size <integer_cst 0x400042e8 32> unit size <integer_cst 0x40004078 4>
            align 32>
        arg 1 <call_expr 0x40010438 type <integer_type 0x4000e380 int>
            side-effects
            arg 0 <addr_expr 0x400094a0 type <pointer_type 0x400c1070>
                constant invariant arg 0 <function_decl 0x4004c380 vfprintf>>
            arg 1 <tree_list 0x400bf4f8
                value <nop_expr 0x400094c0 type <pointer_type 0x400af930>
                    arg 0 <var_decl 0x400ac5b0 stdout>>
                chain <tree_list 0x400bf510 value <parm_decl 0x400c0bd0 __fmt>
                    chain <tree_list 0x400bf528 value <parm_decl 0x400c0c40 
__arg>>>>>>

Program received signal SIGSEGV, Segmentation fault.
0x40931668 in strlen () from /lib/libc.so.6
The program being debugged was signaled while in a function called from GDB.
GDB remains in the frame where the signal was received.
To change this behavior use "set unwindonsignal on"
Evaluation of the expression containing the function (debug_tree) will be 
abandoned.

Last successful build was updated at Wed Jun 1 22:33:22 UTC 2005.

-- 
           Summary: [4.1 Regression] ICE: segmentation fault in stage3
           Product: gcc
           Version: 4.1.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: danglin at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: hppa-unknown-linux-gnu
  GCC host triplet: hppa-unknown-linux-gnu
GCC target triplet: hppa-unknown-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21916

[Bug middle-end/21916] [4.1 Regression] ICE: segmentation fault in stage3

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-06-04 20:29 -------
Very related to PR 21886.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
  BugsThisDependsOn|                            |21886
          Component|c                           |middle-end
           Keywords|                            |build, ice-on-valid-code,
                   |                            |wrong-code
   Target Milestone|---                         |4.1.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21916

[Bug middle-end/21916] [4.1 Regression] ICE: segmentation fault in stage3

[dave at hiauly1 dot hia dot nrc dot ca]

------- Additional Comments From dave at hiauly1 dot hia dot nrc dot ca  2005-06-04 20:54 -------
Subject: Re:  [4.1 Regression] ICE: segmentation fault in stage3

> ------- Additional Comments From pinskia at gcc dot gnu dot org  2005-06-04 20:29 -------
> Very related to PR 21886.

More than related, they are the same:

(gdb) r `cat xx.sh`
The program being debugged has been started already.
Start it from the beginning? (y or n) y

Starting program: /test/gnu/gcc-3.3/objdir/gcc/cc1 `cat xx.sh`
Breakpoint 3 at 0x42b5d4
Breakpoint 4 at 0x40e83c
Breakpoint 3 at 0x7af87744
Breakpoint 4 at 0x7afeb230
GNU C version 4.1.0 20050604 (experimental) (hppa2.0w-hp-hpux11.11)
        compiled by GNU C version 4.1.0 20050604 (experimental).
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
options passed:  -I. -I. -I../../gcc/gcc -I../../gcc/gcc/.
 -I../../gcc/gcc/../include -I../../gcc/gcc/../libcpp/include
 -I/opt/gnu/include -iprefix -isystem -DIN_GCC -DHAVE_GTHR_DEFAULT
 -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED -DL_muldi3 -isystem -isystem
 -isystem -auxbase-strip -g -O2 -W -Wall -Wwrite-strings
 -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition -fPIC
options enabled:  -fPIC -falign-loops -fargument-alias -fbranch-count-reg
 -fcaller-saves -fcommon -fcprop-registers -fcrossjumping
 -fcse-follow-jumps -fcse-skip-blocks -fdefer-pop -fdelayed-branch
 -fdelete-null-pointer-checks -feliminate-unused-debug-types
 -fexpensive-optimizations -fforce-mem -ffunction-cse -fgcse -fgcse-lm
 -fguess-branch-probability -fident -fif-conversion -fif-conversion2
 -fivopts -fkeep-static-consts -fleading-underscore -floop-optimize
 -floop-optimize2 -fmath-errno -fmerge-constants -fomit-frame-pointer
 -foptimize-register-move -foptimize-sibling-calls -fpeephole -fpeephole2
 -freg-struct-return -fregmove -freorder-blocks -freorder-functions
 -frerun-cse-after-loop -frerun-loop-opt -fsched-interblock -fsched-spec
 -fsched-stalled-insns-dep -fschedule-insns -fschedule-insns2 -fshow-column
 -fsplit-ivs-in-unroller -fstrength-reduce -fstrict-aliasing -fthread-jumps
 -ftrapping-math -ftree-ccp -ftree-ch -ftree-copy-prop -ftree-copyrename
 -ftree-dce -ftree-dominator-opts -ftree-dse -ftree-fre -ftree-loop-im
 -ftree-loop-ivcanon -ftree-loop-optimize -ftree-lrs -ftree-pre
 -ftree-salias -ftree-sink -ftree-sra -ftree-store-ccp
 -ftree-store-copy-prop -ftree-ter -ftree-vrp -funit-at-a-time
 -fvar-tracking -fzero-initialized-in-bss -mbig-switch -mgas -mspace-regs
Compiler executable checksum: a84585677dfebb3db993ca6fba1108aa
 _muldi3

Program received signal SIGSEGV, Segmentation fault.
0x7af72538 in strcmp () from /usr/lib/libc.2
(gdb) bt
#0  0x7af72538 in strcmp () from /usr/lib/libc.2
#1  0x001e8a38 in annotate_with_file_line ()
#2  0x001e8b5c in annotate_with_locus ()
#3  0x000786cc in build_stmt ()
#4  0x0002ed9c in finish_decl ()
#5  0x00080bb4 in c_parser_declaration_or_fndef ()
#6  0x00082698 in c_parser_compound_statement_nostart ()
#7  0x0008887c in c_parser_compound_statement ()
#8  0x00080eac in c_parser_declaration_or_fndef ()
#9  0x0008960c in c_parser_external_declaration ()
#10 0x0008a584 in c_parse_file ()
#11 0x00073d3c in c_common_parse_file ()
#12 0x001e64f0 in toplev_main ()
#13 0x00094464 in main ()

Dave


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21916

[Bug middle-end/21916] [4.1 Regression] ICE: segmentation fault in stage3

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-06-05 06:55 -------
*** Bug 21886 has been marked as a duplicate of this bug. ***

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
Bug 21916 depends on bug 21886, which changed state.

Bug 21886 Summary: [4.1 Regression] bootstrap fails on hppa2.0w-hpux
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21886

           What    |Old Value                   |New Value
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |DUPLICATEBug 21916 depends on bug 21886, which changed state.

Bug 21886 Summary: [4.1 Regression] bootstrap fails on hppa2.0w-hpux
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21886

           What    |Old Value                   |New Value
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |DUPLICATE

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21916

[Bug middle-end/21916] [4.1 Regression] ICE: segmentation fault in stage3

[jsm28 at gcc dot gnu dot org]

------- Additional Comments From jsm28 at gcc dot gnu dot org  2005-06-05 11:17 -------
The bootstrap failure on hppa2.0w-hpux appeared between 2005-06-02 02:52 UTC and
2005-06-02 02:58 UTC.  I.e., caused by

2005-06-01  Diego Novillo  <dnovillo@redhat.com>

        PR 14341, PR 21332, PR 20701, PR 21029, PR 21086, PR 21090
        PR 21289, PR 21348, PR 21367, PR 21368, PR 21458.
[...]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |dnovillo at gcc dot gnu dot
                   |                            |org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21916

[Bug middle-end/21916] [4.1 Regression] ICE: segmentation fault in stage3

[dave at hiauly1 dot hia dot nrc dot ca]

------- Additional Comments From dave at hiauly1 dot hia dot nrc dot ca  2005-06-05 14:10 -------
Subject: Re:  [4.1 Regression] ICE: segmentation fault in stage3

> ------- Additional Comments From jsm28 at gcc dot gnu dot org  2005-06-05 11:17 -------
> The bootstrap failure on hppa2.0w-hpux appeared between 2005-06-02 02:52 UTC and
> 2005-06-02 02:58 UTC.  I.e., caused by
> 
> 2005-06-01  Diego Novillo  <dnovillo@redhat.com>
> 
>         PR 14341, PR 21332, PR 20701, PR 21029, PR 21086, PR 21090
>         PR 21289, PR 21348, PR 21367, PR 21368, PR 21458.
> [...]

Also confirmed on hppa-unknown-linux-gnu.

Dave


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21916

[Bug middle-end/21916] [4.1 Regression] ICE: segmentation fault in stage3

[dnovillo at gcc dot gnu dot org]

------- Additional Comments From dnovillo at gcc dot gnu dot org  2005-06-05 14:19 -------

I will need someone with accesss to hppa to binary search the miscompiled file
from stage2 and send me a .i file.

Either that or give me access to an hppa machine.  There is nothing in the PR
log that gives any clue at what may be going on.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21916

[Bug middle-end/21916] [4.1 Regression] ICE: segmentation fault in stage3

[dave at hiauly1 dot hia dot nrc dot ca]

------- Additional Comments From dave at hiauly1 dot hia dot nrc dot ca  2005-06-06 14:51 -------
Subject: Re:  [4.1 Regression] ICE: segmentation fault in stage3

> I will need someone with accesss to hppa to binary search the miscompiled file
> from stage2 and send me a .i file.
> 
> Either that or give me access to an hppa machine.  There is nothing in the PR
> log that gives any clue at what may be going on.

On hppa-unknown-linux-gnu, there are about a dozen files which differ
between stage2 and stage3.  I've enclosed the .i for tree-sra.c since
it's relatively small.  I have also attatched a diff of the assembler
output from stages 2 and 3.

Dave

------- Additional Comments From dave at hiauly1 dot hia dot nrc dot ca  2005-06-06 14:51 -------
Created an attachment (id=9036)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=9036&action=view)

------- Additional Comments From dave at hiauly1 dot hia dot nrc dot ca  2005-06-06 14:51 -------
Created an attachment (id=9037)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=9037&action=view)


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21916

[Bug middle-end/21916] [4.1 Regression] ICE: segmentation fault in stage3

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-06-06 15:00 -------
Can you try -fdump-tree-all and see if any of the dumps there differ?

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21916

[Bug middle-end/21916] [4.1 Regression] ICE: segmentation fault in stage3

[pluto at agmk dot net]

------- Additional Comments From pluto at agmk dot net  2005-06-06 17:53 -------
(In reply to comment #7)  
 
> On hppa-unknown-linux-gnu, there are about a dozen files which differ  
> between stage2 and stage3. (...) 
  
Could You also check the testcase from PR20586? (-funroll-loops issue) 
 

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21916

[Bug middle-end/21916] [4.1 Regression] ICE: segmentation fault in stage3

[dave at hiauly1 dot hia dot nrc dot ca]

------- Additional Comments From dave at hiauly1 dot hia dot nrc dot ca  2005-06-06 19:24 -------
Subject: Re:  [4.1 Regression] ICE: segmentation fault in stage3

On Mon, Jun 06, 2005 at 03:00:57PM -0000, pinskia at gcc dot gnu dot org wrote:
> 
> ------- Additional Comments From pinskia at gcc dot gnu dot org  2005-06-06 15:00 -------
> Can you try -fdump-tree-all and see if any of the dumps there differ?

tree-sra.c.t08.expand differs.  I enclosed the stage2 output and the diff.

Dave

------- Additional Comments From dave at hiauly1 dot hia dot nrc dot ca  2005-06-06 19:24 -------
Created an attachment (id=9039)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=9039&action=view)

------- Additional Comments From dave at hiauly1 dot hia dot nrc dot ca  2005-06-06 19:24 -------
Created an attachment (id=9040)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=9040&action=view)


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21916

[Bug middle-end/21916] [4.1 Regression] ICE: segmentation fault in stage3

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-06-06 19:31 -------
I think this is the same as:
<http://gcc.gnu.org/ml/gcc-patches/2005-06/msg00458.html>.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |ebotcazou at libertysurf dot
                   |                            |fr


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21916

[Bug middle-end/21916] [4.1 Regression] ICE: segmentation fault in stage3

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-06-11 16:14 -------
This is most likely the same as PR 22018 which has a reduced testcase but since I don't have access to 
hppa-linux-gnu, I don't know for sure.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
  BugsThisDependsOn|                            |22018


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21916

[Bug middle-end/21916] [4.1 Regression] ICE: segmentation fault in stage3

[dave at hiauly1 dot hia dot nrc dot ca]

------- Additional Comments From dave at hiauly1 dot hia dot nrc dot ca  2005-06-11 16:47 -------
Subject: Re:  [4.1 Regression] ICE: segmentation fault in stage3

> This is most likely the same as PR 22018 which has a reduced testcase but since I don't have access to 
> hppa-linux-gnu, I don't know for sure.

I'll try the testcase.

Dave


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21916

[Bug middle-end/21916] [4.1 Regression] ICE: segmentation fault in stage3

[dnovillo at gcc dot gnu dot org]

-- 
Bug 21916 depends on bug 22018, which changed state.

Bug 22018 Summary: [4.1 Regression] VRP miscompiles multiply
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22018

           What    |Old Value                   |New Value
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21916

[Bug middle-end/21916] [4.1 Regression] ICE: segmentation fault in stage3

[jsm28 at gcc dot gnu dot org]

------- Additional Comments From jsm28 at gcc dot gnu dot org  2005-06-19 01:34 -------
Fixed 20050618 at least as regards hppa2.0w-hpux.

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21916

[Bug middle-end/21916] [4.1 Regression] ICE: segmentation fault in stage3

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-06-19 01:39 -------
Fixed, both targets.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |FIXED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21916