[Bug fortran/21950] New: All gfortran execution tests fail on Tru64 UNIX V4.0F: scalbn unresolved

[Bug fortran/21950] New: All gfortran execution tests fail on Tru64 UNIX V4.0F: scalbn unresolved

[gcc-bugzilla at gcc dot gnu dot org]

Even with the patch to fix PR libfortran/15234

	http://gcc.gnu.org/ml/fortran/2005-06/msg00118.html

(and already mentioned there), all gfortran execution tests fail on
alpha-dec-osf4.0f like this:

% LD_LIBRARY_PATH=../../alpha-dec-osf4.0f/libgfortran/.libs:.. ./PR19754_2.exe
4552:./PR19754_2.exe: /sbin/loader: Error: Unresolved symbol in ../../alpha-dec-osf4.0f/libgfortran/.libs/libgfortran.so.0: scalbn
4552:./PR19754_2.exe: /sbin/loader: Fatal Error: this executable has unresolvable symbols

The platform has no definition of scalbn whatsoever.

Environment:
System: OSF1 rimsky V4.0 1229 alpha
Machine: alpha
	
host: alpha-dec-osf4.0f
build: alpha-dec-osf4.0f
target: alpha-dec-osf4.0f
configured with: /vol/gnu/src/gcc/gcc-dist/configure --prefix=/vol/gcc --with-local-prefix=/vol/gcc --disable-nls --host alpha-dec-osf4.0f --build alpha-dec-osf4.0f --target alpha-dec-osf4.0f --with-gmp-dir=/vol/gnu/obj/gmp-4.1.3 --with-mpfr-dir=/vol/gnu/obj/gmp-4.1.3 --enable-languages=c,c++,f95,java,objc --disable-libmudflap

How-To-Repeat:
Bootstrap and test mainline (or the 4.0 branch) on alpha-dec-osf4.0f with
the patch above applied.
------- Additional Comments From ro at techfak dot uni-bielefeld dot de  2005-06-07 16:21 -------
Fix:
Provide a scalbn replacement.  E.g. there is one in libjava
(java/lang/s_scalbn.c).

-- 
           Summary: All gfortran execution tests fail on Tru64 UNIX V4.0F:
                    scalbn unresolved
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: critical
          Priority: P2
         Component: fortran
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: ro at techfak dot uni-bielefeld dot de
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: alpha-dec-osf4.0f
  GCC host triplet: alpha-dec-osf4.0f
GCC target triplet: alpha-dec-osf4.0f


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21950

[Bug libfortran/21950] All gfortran execution tests fail on Tru64 UNIX V4.0F: scalbn unresolved

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-06-07 16:23 -------
Another C99 math function missing.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
  BugsThisDependsOn|                            |15234
OtherBugsDependingO|                            |16991
              nThis|                            |
          Component|fortran                     |libfortran
           Keywords|                            |build


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21950

[Bug libfortran/21950] All gfortran execution tests fail on Tru64 UNIX V4.0F: scalbn unresolved

[pinskia at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|critical                    |normal


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21950

[Bug libfortran/21950] All gfortran execution tests fail on Tru64 UNIX V4.0F: scalbn unresolved

[ro at techfak dot uni-bielefeld dot de]

------- Additional Comments From ro at techfak dot uni-bielefeld dot de  2005-06-08 13:34 -------
Subject: Re:  All gfortran execution tests fail on Tru64 UNIX V4.0F: scalbn unresolved

The same problem exists on IRIX 6.5.10 (once a patch for libfortran/15266,
to be submitted after testing is complete, goes in) and most likely IRIX
5.3, too.

	Rainer


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21950

[Bug libfortran/21950] All gfortran execution tests fail on Tru64 UNIX V4.0F: scalbn unresolved

[fxcoudert at gcc dot gnu dot org]

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------- Additional Comments From fxcoudert at gcc dot gnu dot org  2005-06-12 10:51 -------
Since scalbnis only used in set_exponent, we could provide a fallback
implementation (I'm not a FP expert, but I'm not sure the libjava implementation
is very portable). What about the naïve implementation:

double scalbn (double x, int n) { return x * pow(FLT_RADIX,n); }

Is FLT_RADIX available on Tru64 UNIX V4.0F and IRIX? That would at least allow
gfortran to build, even if we could enhance this code afterwards.

The fix is: add a check for scalbn in the configure.ac, add the fallback
function to c99_functions.c and the prototype to c99_protos.h. I can write that
and submit the patch for review if someone can test it on Tru64 UNIX and IRIX.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |fxcoudert at gcc dot gnu dot
                   |                            |org
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
   Last reconfirmed|0000-00-00 00:00:00         |2005-06-12 10:51:38
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21950

[Bug libfortran/21950] All gfortran execution tests fail on Tru64 UNIX V4.0F: scalbn unresolved

[ro at techfak dot uni-bielefeld dot de]

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain, Size: 956 bytes --]


------- Additional Comments From ro at techfak dot uni-bielefeld dot de  2005-06-13 15:08 -------
Subject: Re:  All gfortran execution tests fail on Tru64 UNIX V4.0F: scalbn unresolved

> is very portable). What about the naïve implementation:
>
> double scalbn (double x, int n) { return x * pow(FLT_RADIX,n); }

I haven't checked if this handles the corner cases (overflow, NaN or Inf as
input) correctly.

> Is FLT_RADIX available on Tru64 UNIX V4.0F and IRIX? That would at least allow
> gfortran to build, even if we could enhance this code afterwards.

It is, on all of Tru64 UNIX V4.0F, IRIX 5.3 and 6.5.

> The fix is: add a check for scalbn in the configure.ac, add the fallback
> function to c99_functions.c and the prototype to c99_protos.h. I can write that
> and submit the patch for review if someone can test it on Tru64 UNIX and IRIX.

I can easily perform the testing.

	Rainer


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21950

[Bug libfortran/21950] All gfortran execution tests fail on Tru64 UNIX V4.0F: scalbn unresolved

[fxcoudert at gcc dot gnu dot org]

------- Additional Comments From fxcoudert at gcc dot gnu dot org  2005-06-13 15:41 -------
Well, attached patch should clear this point, and hopefully we will have a
working GNU Fortran on these platforms soon. Can you test it? (patch does not
include regenerated files, so once applied you should run autoconf and
autoheader before building)

Once you confirm that it fixes the problem, we can get this approved.

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21950

[Bug libfortran/21950] All gfortran execution tests fail on Tru64 UNIX V4.0F: scalbn unresolved

[ro at techfak dot uni-bielefeld dot de]

------- Additional Comments From ro at techfak dot uni-bielefeld dot de  2005-06-14 23:47 -------
Subject: Re:  All gfortran execution tests fail on Tru64 UNIX V4.0F: scalbn unresolved

fxcoudert at gcc dot gnu dot org writes:

> Well, attached patch should clear this point, and hopefully we will have a
> working GNU Fortran on these platforms soon. Can you test it? (patch does not
> include regenerated files, so once applied you should run autoconf and
> autoheader before building)

No problem: I applied the patch to mainline, regenerated configure, rebuilt
libgfortran and re-run make check-f95 on Tru64 UNIX V4.0F, IRIX 5.3 and
6.5.10 with my cabs fix applied.  On all three platforms, test results
have massively improved:

	http://gcc.gnu.org/ml/gcc-testresults/2005-06/msg00915.html
	http://gcc.gnu.org/ml/gcc-testresults/2005-06/msg00916.html
	http://gcc.gnu.org/ml/gcc-testresults/2005-06/msg00917.html

> Once you confirm that it fixes the problem, we can get this approved.

Indeed: looks good, thanks.

	Rainer


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21950

[Bug libfortran/21950] All gfortran execution tests fail on Tru64 UNIX V4.0F: scalbn unresolved

[fxcoudert at gcc dot gnu dot org]

------- Additional Comments From fxcoudert at gcc dot gnu dot org  2005-06-15 06:02 -------
Patch submitted for review: http://gcc.gnu.org/ml/fortran/2005-06/msg00292.html

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |fxcoudert at gcc dot gnu dot
                   |dot org                     |org
                URL|                            |http://gcc.gnu.org/ml/fortra
                   |                            |n/2005-06/msg00292.html
             Status|NEW                         |ASSIGNED
           Keywords|                            |patch
   Last reconfirmed|2005-06-12 10:51:38         |2005-06-15 06:02:54
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21950

[Bug libfortran/21950] All gfortran execution tests fail on Tru64 UNIX V4.0F: scalbn unresolved

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2005-06-15 08:40 -------
Subject: Bug 21950

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	fxcoudert@gcc.gnu.org	2005-06-15 08:40:36

Modified files:
	libgfortran    : ChangeLog c99_protos.h config.h.in configure 
	                 configure.ac 
	libgfortran/intrinsics: c99_functions.c 

Log message:
	PR libfortran/21950
	* intrinsics/c99_functions.c (scalbn): Provide fallback
	implementation for scalbn.
	* c99_protos.h: Prototype for scalbn.
	* configure.ac: Add check for scalbn.
	* configure: Regenerate.
	* config.h.in: Regenerate.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libgfortran/ChangeLog.diff?cvsroot=gcc&r1=1.241&r2=1.242
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libgfortran/c99_protos.h.diff?cvsroot=gcc&r1=1.3&r2=1.4
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libgfortran/config.h.in.diff?cvsroot=gcc&r1=1.19&r2=1.20
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libgfortran/configure.diff?cvsroot=gcc&r1=1.37&r2=1.38
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libgfortran/configure.ac.diff?cvsroot=gcc&r1=1.27&r2=1.28
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libgfortran/intrinsics/c99_functions.c.diff?cvsroot=gcc&r1=1.11&r2=1.12



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21950

[Bug libfortran/21950] All gfortran execution tests fail on Tru64 UNIX V4.0F: scalbn unresolved

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2005-06-15 18:53 -------
Subject: Bug 21950

CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	gcc-4_0-branch
Changes by:	fxcoudert@gcc.gnu.org	2005-06-15 18:53:26

Modified files:
	libgfortran    : ChangeLog c99_protos.h config.h.in configure 
	                 configure.ac 
	libgfortran/intrinsics: c99_functions.c 

Log message:
	PR libfortran/21950
	* intrinsics/c99_functions.c (scalbn): Provide fallback
	implementation for scalbn.
	* c99_protos.h: Prototype for scalbn.
	* configure.ac: Add check for scalbn.
	* configure: Regenerate.
	* config.h.in: Regenerate.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libgfortran/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=1.163.2.49&r2=1.163.2.50
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libgfortran/c99_protos.h.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=1.2.14.1&r2=1.2.14.2
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libgfortran/config.h.in.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=1.16.12.3&r2=1.16.12.4
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libgfortran/configure.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=1.26.12.5&r2=1.26.12.6
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libgfortran/configure.ac.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=1.20.12.5&r2=1.20.12.6
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libgfortran/intrinsics/c99_functions.c.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=1.10.2.1&r2=1.10.2.2



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21950

[Bug libfortran/21950] All gfortran execution tests fail on Tru64 UNIX V4.0F: scalbn unresolved

[fxcoudert at gcc dot gnu dot org]

------- Additional Comments From fxcoudert at gcc dot gnu dot org  2005-06-15 19:46 -------
Patch commited on mainline and 4.0. Fixed.

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21950

[Bug libfortran/21950] All gfortran execution tests fail on Tru64 UNIX V4.0F: scalbn unresolved

[pinskia at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |4.0.1


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21950