[Bug fortran/35667] New: FAIL: gfortran.dg/nan_3.f90 execution test

[Bug fortran/35667] New: FAIL: gfortran.dg/nan_3.f90 execution test

[danglin at gcc dot gnu dot org]

Executing on host: /xxx/gnu/gcc/objdir/gcc/testsuite/gfortran/../../gfortran
-B/xxx/gnu/gcc/objdir/gcc/testsuite/gfortran/../../
/xxx/gnu/gcc/gcc/gcc/testsuite/gfortran.dg/nan_3.f90   -O0  -fno-range-check 
-L/xxx/gnu/gcc/objdir/hppa1.1-hp-hpux10.20/./libgfortran/.libs
-L/xxx/gnu/gcc/objdir/hppa1.1-hp-hpux10.20/./libgfortran/.libs
-L/xxx/gnu/gcc/objdir/hppa1.1-hp-hpux10.20/./libiberty  -lm   -o ./
nan_3.exe    (timeout = 600)
PASS: gfortran.dg/nan_3.f90  -O0  (test for excess errors)Setting
LD_LIBRARY_PATH to
.:/xxx/gnu/gcc/objdir/hppa1.1-hp-hpux10.20/./libgfortran/.libs:/xxx/gnu/gcc/objdir/hppa1.1-hp-hpux10.20/./libgfortran/.libs:/xxx/gnu/gcc/objdir/gcc:.:/xxx/gnu/gcc/objdir/hppa1.1-hp-hpux10.20/./libgfortran/.libs:/xxx/gnu/gcc/objdir/hppa1.1-hp-hpux10.20/./libgfortran/.libs:/xxx/gnu/gcc/objdir/g
cc
FAIL: gfortran.dg/nan_3.f90  -O0  execution test


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           Summary: FAIL: gfortran.dg/nan_3.f90 execution test
           Product: gcc
           Version: 4.3.0
            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: hppa1.1-hp-hpux10.20
  GCC host triplet: hppa1.1-hp-hpux10.20
GCC target triplet: hppa1.1-hp-hpux10.20


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35667

[Bug fortran/35667] FAIL: gfortran.dg/nan_3.f90 execution test

[danglin at gcc dot gnu dot org]

------- Comment #1 from danglin at gcc dot gnu dot org  2008-03-22 18:19 -------
Breakpoint 5, MAIN__ ()
    at /xxx/gnu/gcc/gcc/gcc/testsuite/gfortran.dg/nan_3.f90:17
17        if (.not.isnan(r)) call abort()
(gdb) p r
$1 = 0
(gdb) ptype r
type = real(kind=4)
(gdb) p/f r
$2 = 0
(gdb) step
_gfortran_abort () at ../../../gcc/libgfortran/intrinsics/abort.c:38
38        close_units ();


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35667

[Bug fortran/35667] FAIL: gfortran.dg/nan_3.f90 execution test

[danglin at gcc dot gnu dot org]

------- Comment #2 from danglin at gcc dot gnu dot org  2008-03-22 20:12 -------
The problem is the use of strtod in convert_real.  Unfortunately, strtod
does not return correct values for nan, inf and infinity on hpux10.  This
was fixed in hpux11.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35667

[Bug fortran/35667] FAIL: gfortran.dg/nan_3.f90 execution test

[jvdelisle at gcc dot gnu dot org]

------- Comment #3 from jvdelisle at gcc dot gnu dot org  2008-03-22 22:35 -------
*** Bug 35666 has been marked as a duplicate of this bug. ***


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35667

[Bug libfortran/35667] HP-UX 10 has broken strtod

[fxcoudert at gcc dot gnu dot org]

------- Comment #4 from fxcoudert at gcc dot gnu dot org  2009-03-28 08:55 -------
The solution to this issue would be to detect a broken strtod() (or strtof() or
strtold()) in libgfortran configury, and write a wrapper checking for
infinities and nans before calling the system's strtod().

Very low priority issue because HP-UX 10 is probably not that common any more
(HP-UX 11 was released 12 years ago), unless some other target is affected.


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fxcoudert at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |fxcoudert at gcc dot gnu dot
                   |                            |org
           Severity|normal                      |enhancement
             Status|UNCONFIRMED                 |NEW
          Component|fortran                     |libfortran
     Ever Confirmed|0                           |1
      Known to fail|                            |4.3.0 4.4.0 4.5.0
   Last reconfirmed|0000-00-00 00:00:00         |2009-03-28 08:55:37
               date|                            |
            Summary|FAIL: gfortran.dg/nan_3.f90 |HP-UX 10 has broken strtod
                   |execution test              |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35667

[Bug libfortran/35667] HP-UX 10 has broken strtod

[dave at hiauly1 dot hia dot nrc dot ca]

------- Comment #5 from dave at hiauly1 dot hia dot nrc dot ca  2009-03-28 18:57 -------
Subject: Re:  HP-UX 10 has broken strtod

On Sat, 28 Mar 2009, fxcoudert at gcc dot gnu dot org wrote:

> 
> 
> ------- Comment #4 from fxcoudert at gcc dot gnu dot org  2009-03-28 08:55 -------
> The solution to this issue would be to detect a broken strtod() (or strtof() or
> strtold()) in libgfortran configury, and write a wrapper checking for
> infinities and nans before calling the system's strtod().

Just for the record, I've attached my last version of a change to do this.
There was some discussion of this in the following thread:
http://gcc.gnu.org/ml/fortran/2008-04/msg00000.html

I ran out of time to work on it when the new register allocator was added
and the hppa port broke.

Dave


------- Comment #6 from dave at hiauly1 dot hia dot nrc dot ca  2009-03-28 18:57 -------
Created an attachment (id=17556)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=17556&action=view)


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35667