[Bug fortran/38675] New: FAIL: gfortran.dg/parameter_array_init_3.f90 -O (internal compiler error)

[Bug fortran/38675] New: FAIL: gfortran.dg/parameter_array_init_3.f90 -O (internal compiler error)

[danglin at gcc dot gnu dot org]

This bug has been around for awhile on the 4.3 branch.  Not present in 4.4.

Executing on host: /mnt/gnu/gcc/objdir/gcc/testsuite/gfortran/../../gfortran
-B/
mnt/gnu/gcc/objdir/gcc/testsuite/gfortran/../../
/mnt/gnu/gcc/gcc/gcc/testsuite/
gfortran.dg/parameter_array_init_3.f90   -O   -pedantic-errors -S  -o
parameter_
array_init_3.s    (timeout = 300)
f951: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
compiler exited with status 1
output is:
f951: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

FAIL: gfortran.dg/parameter_array_init_3.f90  -O  (internal compiler error)
FAIL: gfortran.dg/parameter_array_init_3.f90  -O  (test for excess errors)
Excess errors:
f951: internal compiler error: Segmentation fault

(gdb) r
Starting program: /mnt/gnu/gcc/objdir/gcc/f951
/mnt/gnu/gcc/gcc/gcc/testsuite/gfortran.dg/parameter_array_init_3.f90 -quiet
-dumpbase parameter_array_init_3.f90 -auxbase-strip parameter_array_init_3.s -O
-pedantic-errors -version -o parameter_array_init_3.s -fintrinsic-modules-path
finclude
warning: Private mapping of shared library text was not specified
by the executable; setting a breakpoint in a shared library which
is not privately mapped will not work.  See the HP-UX 11i v3 chatr
manpage for methods to privately map shared library text.
warning: Loadable segment ".tbss" outside of ELF segments
warning: Loadable segment ".tbss" outside of ELF segments
GNU F95 (GCC) version 4.3.3 20081229 (prerelease) [gcc-4_3-branch revision
142953] (hppa64-hp-hpux11.11)
        compiled by GNU C version 4.3.3 20081229 (prerelease) [gcc-4_3-branch
revision 142953], GMP version 4.2.2, MPFR version 2.3.1.
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072

Program received signal SIGSEGV, Segmentation fault.
0x400000000070efb0 in __gmpz_add ()
(gdb) bt
#0  0x400000000070efb0 in __gmpz_add ()
#1  0x4000000000173894 in simplify_const_ref (p=0x8000000100130e58)
    at ../../gcc/gcc/fortran/expr.c:1049
#2  0x4000000000174134 in gfc_simplify_expr (p=0x8000000100130e58, type=1)
    at ../../gcc/gcc/fortran/expr.c:1700
#3  0x40000000001745a8 in simplify_parameter_variable (p=0x8000000100130120, 
    type=1) at ../../gcc/gcc/fortran/expr.c:1567
#4  0x4000000000174110 in gfc_simplify_expr (p=0x8000000100130120, type=1)
    at ../../gcc/gcc/fortran/expr.c:1672
#5  0x4000000000150fd0 in expand_constructor (c=0x8000000100130990)
    at ../../gcc/gcc/fortran/array.c:1385
#6  0x4000000000151290 in expand_constructor (c=0x800000010012f928)
    at ../../gcc/gcc/fortran/array.c:1262
#7  0x4000000000151778 in gfc_array_size (array=0x8000000100130490, 
    result=0x800003fffdff18c8) at ../../gcc/gcc/fortran/array.c:1983
#8  0x4000000000151f2c in gfc_array_dimen_size (array=0x8000000100132028, 
    dimen=1, result=0x8) at ../../gcc/gcc/fortran/array.c:1940
#9  0x40000000001bae50 in expression_rank (e=0x8000000100130490)
    at ../../gcc/gcc/fortran/resolve.c:4007
#10 0x40000000001bc8d4 in gfc_resolve_expr (e=0x8000000100130490)
    at ../../gcc/gcc/fortran/resolve.c:4383
#11 0x40000000001757e0 in gfc_match_init_expr (result=0x800003fffdff1410)
    at ../../gcc/gcc/fortran/expr.c:2379
---Type <return> to continue, or q <return> to quit---
#12 0x40000000001684c0 in gfc_match_data_decl ()
    at ../../gcc/gcc/fortran/decl.c:1743
#13 0x40000000001ab530 in match_word (str=0x8000000100132028 "\200", 
    subr=0x4000000000136070, old_locus=0x800003fffdff12c0)
    at ../../gcc/gcc/fortran/parse.c:64
#14 0x40000000001abee4 in decode_statement ()
    at ../../gcc/gcc/fortran/parse.c:280
#15 0x40000000001ad9b4 in next_statement ()
    at ../../gcc/gcc/fortran/parse.c:652
#16 0x40000000001af76c in parse_spec (st=ST_DATA_DECL)
    at ../../gcc/gcc/fortran/parse.c:2179
#17 0x40000000001b251c in gfc_parse_file ()
    at ../../gcc/gcc/fortran/parse.c:3395
#18 0x40000000001e6c0c in gfc_be_parse_file (
    set_yydebug=<value optimized out>) at ../../gcc/gcc/fortran/f95-lang.c:260
#19 0x400000000042ca7c in toplev_main (argc=<value optimized out>, 
    argv=<value optimized out>) at ../../gcc/gcc/toplev.c:1042
#20 0x400000000023188c in main (argc=1253416, argv=0x8)
    at ../../gcc/gcc/main.c:35


-- 
           Summary: FAIL: gfortran.dg/parameter_array_init_3.f90  -O
                    (internal compiler error)
           Product: gcc
           Version: 4.3.3
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: danglin at gcc dot gnu dot org
 GCC build triplet: hppa64-hp-hpux11.11
  GCC host triplet: hppa64-hp-hpux11.11
GCC target triplet: hppa64-hp-hpux11.11


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38675

[Bug fortran/38675] FAIL: gfortran.dg/parameter_array_init_3.f90 -O (internal compiler error)

[danglin at gcc dot gnu dot org]

------- Comment #1 from danglin at gcc dot gnu dot org  2008-12-30 21:03 -------
(gdb) p *p
$2 = {expr_type = EXPR_ARRAY, ts = {type = BT_INTEGER, kind = 1, 
    derived = 0x0, cl = 0x0, is_c_interop = 0, is_iso_c = 0, 
    f90_type = BT_UNKNOWN}, rank = 0, shape = 0x8000000100131b58, 
  symtree = 0x0, ref = 0x8000000100131b90, where = {
    nextc = 0x80000001001279e3 "  [(1,i=1,len(HEX1))]", 
    lb = 0x8000000100127998}, inline_noncopying_intrinsic = 0, is_boz = 0, 
  error = 0, con_by_offset = 0x0, representation = {length = 0, 
    string = 0x0}, value = {logical = -2147483647, integer = {{
        _mp_alloc = -2147483647, _mp_size = 1242656, _mp_d = 0x0}}, real = {{
        _mpfr_prec = 9223372041150985760, _mpfr_sign = 0, _mpfr_exp = 0, 
        _mpfr_d = 0x0}}, complex = {r = {{_mpfr_prec = 9223372041150985760, 
          _mpfr_sign = 0, _mpfr_exp = 0, _mpfr_d = 0x0}}, i = {{
          _mpfr_prec = 0, _mpfr_sign = 0, _mpfr_exp = 0, _mpfr_d = 0x0}}}, 
    op = {operator = -2147483647, uop = 0x0, op1 = 0x0, op2 = 0x0}, 
    function = {actual = 0x800000010012f620, name = 0x0, isym = 0x0, 
      esym = 0x0}, character = {length = -2147483647, string = 0x0}, 
    constructor = 0x800000010012f620}}


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38675

[Bug fortran/38675] FAIL: gfortran.dg/parameter_array_init_3.f90 -O (internal compiler error)

[kargl at gcc dot gnu dot org]

------- Comment #2 from kargl at gcc dot gnu dot org  2008-12-30 21:15 -------
See PR 37469

Given the last comment.  This will probably be closed with a WONTFIX.


-- 

kargl at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P5


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38675

[Bug fortran/38675] FAIL: gfortran.dg/parameter_array_init_3.f90 -O (internal compiler error)

[dave at hiauly1 dot hia dot nrc dot ca]

------- Comment #3 from dave at hiauly1 dot hia dot nrc dot ca  2008-12-30 21:40 -------
Subject: Re:  FAIL: gfortran.dg/parameter_array_init_3.f90  -O  (internal
compiler error)

> Given the last comment.  This will probably be closed with a WONTFIX.

Is backporting the fix for PR fortran/35840, or just gfc_reduce_init_expr,
that difficult?

Dave


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38675

[Bug fortran/38675] FAIL: gfortran.dg/parameter_array_init_3.f90 -O (internal compiler error)

[mikael at gcc dot gnu dot org]

------- Comment #4 from mikael at gcc dot gnu dot org  2008-12-30 22:12 -------
(In reply to comment #3)
> Is backporting the fix for PR fortran/35840, or just gfc_reduce_init_expr,
> that difficult?
No, it should be manageable. 
I gave up when the patch refused to apply. Sorry.
I could try harder. 


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38675

[Bug fortran/38675] FAIL: gfortran.dg/parameter_array_init_3.f90 -O (internal compiler error)

[dave at hiauly1 dot hia dot nrc dot ca]

------- Comment #5 from dave at hiauly1 dot hia dot nrc dot ca  2008-12-30 22:21 -------
Subject: Re:  FAIL: gfortran.dg/parameter_array_init_3.f90  -O  (internal
compiler error)

> > Is backporting the fix for PR fortran/35840, or just gfc_reduce_init_expr,
> > that difficult?
> No, it should be manageable. 
> I gave up when the patch refused to apply. Sorry.
> I could try harder. 

There were a few formating changes and try changed to gfc_try.  I'm
just about to do a build with the backport.

Dave


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38675

[Bug fortran/38675] FAIL: gfortran.dg/parameter_array_init_3.f90 -O (internal compiler error)

[dave at hiauly1 dot hia dot nrc dot ca]

------- Comment #6 from dave at hiauly1 dot hia dot nrc dot ca  2008-12-31 23:28 -------
Subject: Re:  FAIL:
        gfortran.dg/parameter_array_init_3.f90  -O  (internal compiler
        error)

On Tue, 30 Dec 2008, mikael at gcc dot gnu dot org wrote:

> > Is backporting the fix for PR fortran/35840, or just gfc_reduce_init_expr,
> > that difficult?
> No, it should be manageable. 

I currently testing the attached backport.  It fixes the ICE on
hppa64-hp-hpux11.11.  If there are no regressions on hppa2.0w-hp-hpux11.11, I
will commit.

I left off the change to io.c as it's a secondary issue.

Dave


------- Comment #7 from dave at hiauly1 dot hia dot nrc dot ca  2008-12-31 23:28 -------
Created an attachment (id=17019)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=17019&action=view)


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38675

[Bug fortran/38675] FAIL: gfortran.dg/parameter_array_init_3.f90 -O (internal compiler error)

[danglin at gcc dot gnu dot org]

------- Comment #8 from danglin at gcc dot gnu dot org  2009-01-01 17:43 -------
Subject: Bug 38675

Author: danglin
Date: Thu Jan  1 17:42:00 2009
New Revision: 142995

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=142995
Log:
        PR fortran/38675
        Backport from mainline:
        2008-12-09  Mikael Morin  <mikael.morin@tele2.fr>

        PR fortran/37469
        * expr.c (find_array_element): Simplify array bounds.
        Assert that both bounds are constant expressions.

        2008-10-31  Mikael Morin  <mikael.morin@tele2.fr>

        * expr.c (gfc_reduce_init_expr): New function, containing checking code
        from gfc_match_init_expr, so that checking can be deferred. 
        (gfc_match_init_expr): Use gfc_reduce_init_expr.
        * match.h (gfc_reduce_init_expr): Prototype added. 


Modified:
    branches/gcc-4_3-branch/gcc/fortran/ChangeLog
    branches/gcc-4_3-branch/gcc/fortran/expr.c
    branches/gcc-4_3-branch/gcc/fortran/match.h


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38675

[Bug fortran/38675] FAIL: gfortran.dg/parameter_array_init_3.f90 -O (internal compiler error)

[danglin at gcc dot gnu dot org]

------- Comment #9 from danglin at gcc dot gnu dot org  2009-01-01 17:44 -------
Fixed.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38675

[Bug fortran/38675] FAIL: gfortran.dg/parameter_array_init_3.f90 -O (internal compiler error)

[danglin at gcc dot gnu dot org]

------- Comment #10 from danglin at gcc dot gnu dot org  2009-01-01 17:45 -------
Forgot to check button.


-- 

danglin at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38675