[Bug fortran/24875] [gfortran, 4.1.0 regression] Arithmetic overflow during compilation
--- Comment #10 from sgk at troutmask dot apl dot washington dot edu 2006-01-21 17:27 --- Subject: Re: [gfortran, 4.1.0 regression] Arithmetic overflow during compilation On Sat, Jan 21, 2006 at 08:49:26AM -, martin at mpa-garching dot mpg dot de wrote: > > Unfortunately I can reproduce it with GMP 4.1.4 now :( > This is on an Athlon64 with Suse 10.0, using the GMP 4.1.4 coming with the > distribution. > > What do we do? > Contact SuSe. This isn't a gfortran problem. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24875
[Bug fortran/24875] [gfortran, 4.1.0 regression] Arithmetic overflow during compilation
--- Comment #9 from martin at mpa-garching dot mpg dot de 2006-01-21 08:49 --- (In reply to comment #8) > I am going to declare this is GMP bug as I can reproduce it on two out of > three > of my machines. The one with the newest GMP, it works. These three machines > are all different targets, powerpc, x86 and x86-64. Unfortunately I can reproduce it with GMP 4.1.4 now :( This is on an Athlon64 with Suse 10.0, using the GMP 4.1.4 coming with the distribution. What do we do? BTW, the GMP people have a big notice on their web page that recent gcc versions often miscompile GMP. That could of course be a problem of the GMP code as well, but maybe the GMP testsuite should be used regularly to test GCC builds. This is especially important since gfortran relies on GMP and MPFR working properly. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24875
[Bug fortran/24875] [gfortran, 4.1.0 regression] Arithmetic overflow during compilation
--- Comment #8 from pinskia at gcc dot gnu dot org 2006-01-20 20:56 --- I am going to declare this is GMP bug as I can reproduce it on two out of three of my machines. The one with the newest GMP, it works. These three machines are all different targets, powerpc, x86 and x86-64. So closing as worksforme. -- pinskia at gcc dot gnu dot org changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED Resolution||WORKSFORME http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24875
[Bug fortran/24875] [gfortran, 4.1.0 regression] Arithmetic overflow during compilation
--- Comment #7 from martin at mpa-garching dot mpg dot de 2006-01-16 11:14 --- I have re-tested today, and it seems that the problem only occurs when gfortran is built using a self-compiled version of GMP 4.1.3. When using the system-wide installed GMP 4.1.4 I don't get the error. So this looks like a GMP-related problem (either a bug in GMP or a miscompilation of GMP). -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24875
[Bug fortran/24875] [gfortran, 4.1.0 regression] Arithmetic overflow during compilation
--- Comment #6 from sgk at troutmask dot apl dot washington dot edu 2005-11-15 21:49 --- Subject: Re: [gfortran, 4.1.0 regression] Arithmetic overflow during compilation > Comment #5 from martin > ~/tmp>gfortran -c -fdump-parse-tree huge.f90 > >Namespace: A-Z: (UNKNOWN 0) >procedure name = mod1 >symtree: gndp_max Ambig 0 >symbol gndp_max (REAL 8)(PARAMETER UNKNOWN-INTENT UNKNOWN-ACCESS UNKNOWN-PROC) >value: 1.79769313486232e308_8 > On amd64-*-freebsd. Namespace: A-Z: (UNKNOWN 0) procedure name = mod1 symtree: gndp_max Ambig 0 symbol gndp_max (REAL 8)(PARAMETER UNKNOWN-INTENT UNKNOWN-ACCESS UNKNOWN-PROC) value: 1.7976931348623157e308_8 >procedure name = mod2 >symtree: gndp_max Ambig 0 >symbol gndp_max (REAL 8)(PARAMETER UNKNOWN-INTENT UNKNOWN-ACCESS > UNKNOWN-PROC USE-ASSOC) >value: 1.79769313486232e308_8 Good, you're reading in what was written to the module. > 6 'gndp_max' 'mod1' 1 ((PARAMETER UNKNOWN-INTENT UNKNOWN-PROC UNKNOWN) ( > REAL 8 ()) 0 0 () (CONSTANT (REAL 8 ()) 0 '[EMAIL PROTECTED]') () 0 () > ()) 6 'gndp_max' 'mod1' 1 ((PARAMETER UNKNOWN-INTENT UNKNOWN-PROC UNKNOWN) ( REAL 8 ()) 0 0 () (CONSTANT (REAL 8 ()) 0 '[EMAIL PROTECTED]') () 0 () Hmmm, this doesn't look good. You're getting 1 fewer digits than I. I'll check what happens on i386-*-freebsd. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24875
[Bug fortran/24875] [gfortran, 4.1.0 regression] Arithmetic overflow during compilation
--- Comment #5 from martin at mpa-garching dot mpg dot de 2005-11-15 21:16
---
~/tmp>gfortran -c -fdump-parse-tree huge.f90
Namespace: A-Z: (UNKNOWN 0)
procedure name = mod1
symtree: gndp_max Ambig 0
symbol gndp_max (REAL 8)(PARAMETER UNKNOWN-INTENT UNKNOWN-ACCESS
UNKNOWN-PROC)
value: 1.79769313486232e308_8
symtree: gndp Ambig 0
symbol gndp (INTEGER 4)(PARAMETER UNKNOWN-INTENT UNKNOWN-ACCESS
UNKNOWN-PROC)
value: 8
symtree: mod1 Ambig 0
symbol mod1 (UNKNOWN 0)(MODULE UNKNOWN-INTENT UNKNOWN-ACCESS
UNKNOWN-PROC)
symtree: huge Ambig 0
symbol huge (UNKNOWN 0)(PROCEDURE UNKNOWN-INTENT UNKNOWN-ACCESS
UNKNOWN-PROC FUNCTION)
result: huge
symtree: kind Ambig 0
symbol kind (UNKNOWN 0)(PROCEDURE UNKNOWN-INTENT UNKNOWN-ACCESS
UNKNOWN-PROC FUNCTION)
result: kind
In file huge.f90:15
val = -GNDP_MAX
1
Error: Arithmetic overflow at (1)
Namespace: A-Z: (UNKNOWN 0)
procedure name = mod2
symtree: gndp_max Ambig 0
symbol gndp_max (REAL 8)(PARAMETER UNKNOWN-INTENT UNKNOWN-ACCESS
UNKNOWN-PROC USE-ASSOC)
value: 1.79769313486232e308_8
symtree: gndp Ambig 0
symbol gndp (INTEGER 4)(PARAMETER UNKNOWN-INTENT UNKNOWN-ACCESS
UNKNOWN-PROC USE-ASSOC)
value: 8
symtree: foo Ambig 0
symbol foo (UNKNOWN 0)(PROCEDURE UNKNOWN-INTENT UNKNOWN-ACCESS
MODULE-PROC SUBROUTINE)
symtree: mod2 Ambig 0
symbol mod2 (UNKNOWN 0)(MODULE UNKNOWN-INTENT UNKNOWN-ACCESS
UNKNOWN-PROC)
symtree: kind Ambig 0
symbol kind (UNKNOWN 0)(PROCEDURE UNKNOWN-INTENT UNKNOWN-ACCESS
UNKNOWN-PROC USE-ASSOC FUNCTION)
result: kind
symtree: huge Ambig 0
symbol huge (UNKNOWN 0)(PROCEDURE UNKNOWN-INTENT UNKNOWN-ACCESS
UNKNOWN-PROC USE-ASSOC FUNCTION)
result: huge
symtree: mod1 Ambig 0
symbol mod1 (UNKNOWN 0)(MODULE UNKNOWN-INTENT UNKNOWN-ACCESS
UNKNOWN-PROC USE-ASSOC)
CONTAINS
Namespace: A-Z: (UNKNOWN 0)
procedure name = foo
symtree: foo Ambig 0 from namespace mod2
symtree: val Ambig 0
symbol val (REAL 8)(VARIABLE UNKNOWN-INTENT UNKNOWN-ACCESS
UNKNOWN-PROC)
~/tmp>
~/tmp>cat mod1.mod
GFORTRAN module created from huge.f90 on Tue Nov 15 22:14:38 2005
If you edit this, you'll get what you deserve.
(() () () () () () () () () () () () () () () () () () () ())
()
()
()
()
(2 'gndp' 'mod1' 1 ((PARAMETER UNKNOWN-INTENT UNKNOWN-PROC UNKNOWN) (
INTEGER 4 ()) 0 0 () (CONSTANT (INTEGER 4 ()) 0 '8') () 0 () ())
3 'kind' '(intrinsic)' 1 ((PROCEDURE UNKNOWN-INTENT UNKNOWN-PROC UNKNOWN
FUNCTION) (UNKNOWN 0 ()) 0 0 () () 3 () ())
4 'huge' '(intrinsic)' 1 ((PROCEDURE UNKNOWN-INTENT UNKNOWN-PROC UNKNOWN
FUNCTION) (UNKNOWN 0 ()) 0 0 () () 4 () ())
5 'mod1' 'mod1' 1 ((MODULE UNKNOWN-INTENT UNKNOWN-PROC UNKNOWN) (
UNKNOWN 0 ()) 0 0 () () 0 () ())
6 'gndp_max' 'mod1' 1 ((PARAMETER UNKNOWN-INTENT UNKNOWN-PROC UNKNOWN) (
REAL 8 ()) 0 0 () (CONSTANT (REAL 8 ()) 0 '[EMAIL PROTECTED]') () 0 ()
())
)
('gndp_max' 0 6 'gndp' 0 2 'mod1' 0 5 'huge' 0 4 'kind' 0 3)
~/tmp>
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24875
[Bug fortran/24875] [gfortran, 4.1.0 regression] Arithmetic overflow during compilation
--- Comment #4 from martin at mpa-garching dot mpg dot de 2005-11-15 21:09 --- > The code works for me on amd64-*-freebsd. Can > you compile the failing code with -fdump-parse-tree > and post both mod1.mod and the parse-tree? Will do tomorrow. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24875
[Bug fortran/24875] [gfortran, 4.1.0 regression] Arithmetic overflow during compilation
--- Comment #3 from martin at mpa-garching dot mpg dot de 2005-11-15 21:09 --- (In reply to comment #2) > It fails on powerpc64-linux with both -m32 and -m64 for current trunk, > 4.0 branch, and GCC 4.0.0. Since it's Fortran 90 code it's not really > a regression. Well, it worked for me with the current gcc 4.0 branch, so I thought it might be one. But it seems this is a quite intermittent problem ... -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24875
[Bug fortran/24875] [gfortran, 4.1.0 regression] Arithmetic overflow during compilation
--- Comment #2 from janis at gcc dot gnu dot org 2005-11-15 20:16 --- It fails on powerpc64-linux with both -m32 and -m64 for current trunk, 4.0 branch, and GCC 4.0.0. Since it's Fortran 90 code it's not really a regression. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24875
[Bug fortran/24875] [gfortran, 4.1.0 regression] Arithmetic overflow during compilation
--- Comment #1 from kargl at gcc dot gnu dot org 2005-11-15 20:11 --- The code works for me on amd64-*-freebsd. Can you compile the failing code with -fdump-parse-tree and post both mod1.mod and the parse-tree? -- kargl at gcc dot gnu dot org changed: What|Removed |Added CC||kargl at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24875
