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* [Bug fortran/17708] New: gfortran problem with goto inside loop
@ 2004-09-28 8:28 mimo2 at free dot fr
2004-09-28 11:35 ` [Bug fortran/17708] " pinskia at gcc dot gnu dot org
` (6 more replies)
0 siblings, 7 replies; 8+ messages in thread
From: mimo2 at free dot fr @ 2004-09-28 8:28 UTC (permalink / raw)
To: gcc-bugs
Here is a simple example
program test
do 10 i=1,3
if(i == 2) goto 10
write(*,*) ' loop with i =',i
10 enddo
end
where the loop stops at the second pass (i=2). Replacing the
"goto" by "cycle" cures the problem (but this breaks compatibility
with old g77 codes)
program test
do 10 i=1,3
if(i == 2) cycle
write(*,*) ' loop with i =',i
10 enddo
end
I've used the gfortran version as of today (28 sep), on gcc 3.2.2
--
Summary: gfortran problem with goto inside loop
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: critical
Priority: P2
Component: fortran
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: mimo2 at free dot fr
CC: gcc-bugs at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17708
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug fortran/17708] gfortran problem with goto inside loop
2004-09-28 8:28 [Bug fortran/17708] New: gfortran problem with goto inside loop mimo2 at free dot fr
@ 2004-09-28 11:35 ` pinskia at gcc dot gnu dot org
2004-09-28 13:53 ` tobi at gcc dot gnu dot org
` (5 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-09-28 11:35 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-09-28 11:35 -------
Confirmed.
--
What |Removed |Added
----------------------------------------------------------------------------
Severity|critical |normal
Status|UNCONFIRMED |NEW
Ever Confirmed| |1
Keywords| |wrong-code
Last reconfirmed|0000-00-00 00:00:00 |2004-09-28 11:35:10
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17708
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug fortran/17708] gfortran problem with goto inside loop
2004-09-28 8:28 [Bug fortran/17708] New: gfortran problem with goto inside loop mimo2 at free dot fr
2004-09-28 11:35 ` [Bug fortran/17708] " pinskia at gcc dot gnu dot org
@ 2004-09-28 13:53 ` tobi at gcc dot gnu dot org
2004-09-28 16:07 ` tobi at gcc dot gnu dot org
` (4 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: tobi at gcc dot gnu dot org @ 2004-09-28 13:53 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From tobi at gcc dot gnu dot org 2004-09-28 13:43 -------
t02.original looks like this:
MAIN__ ()
{
int4 i;
{
int4 count.0;
count.0 = 3;
i = 1;
while (1)
{
if (count.0 <= 0)
{
goto L.2;
}
else
{
(void) 0;
}
_gfortran_filename = "pr17708.f90";
_gfortran_line = 4;
_gfortran_ioparm.unit = 6;
_gfortran_ioparm.list_format = 1;
_gfortran_st_write ();
_gfortran_transfer_character (" loop with i =", 14);
_gfortran_transfer_integer (&i, 4);
_gfortran_st_write_done ();
i = i + 1;
count.0 = count.0 - 1;
}
L.2:;
}
__label_000010:; <<<<<<<<<<<<<<<<<<<< this is the wrong place
}
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17708
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug fortran/17708] gfortran problem with goto inside loop
2004-09-28 8:28 [Bug fortran/17708] New: gfortran problem with goto inside loop mimo2 at free dot fr
2004-09-28 11:35 ` [Bug fortran/17708] " pinskia at gcc dot gnu dot org
2004-09-28 13:53 ` tobi at gcc dot gnu dot org
@ 2004-09-28 16:07 ` tobi at gcc dot gnu dot org
2004-09-28 16:46 ` tobi at gcc dot gnu dot org
` (3 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: tobi at gcc dot gnu dot org @ 2004-09-28 16:07 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From tobi at gcc dot gnu dot org 2004-09-28 16:07 -------
The bug is actually in the frontend. From the -fdump-parse-tree output:
DO i=1 3 1
IF (= i 2)
GOTO 10
ENDIF
WRITE UNIT=6 FMT=-1
TRANSFER ' loop with i ='
TRANSFER i
DT_END
END DO
10 NOP
The last two lines should clearly be interchanged.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17708
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug fortran/17708] gfortran problem with goto inside loop
2004-09-28 8:28 [Bug fortran/17708] New: gfortran problem with goto inside loop mimo2 at free dot fr
` (2 preceding siblings ...)
2004-09-28 16:07 ` tobi at gcc dot gnu dot org
@ 2004-09-28 16:46 ` tobi at gcc dot gnu dot org
2004-10-04 21:05 ` tobi at gcc dot gnu dot org
` (2 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: tobi at gcc dot gnu dot org @ 2004-09-28 16:46 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From tobi at gcc dot gnu dot org 2004-09-28 16:45 -------
Patch here: http://gcc.gnu.org/ml/fortran/2004-09/msg00277.html
--
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |patch
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17708
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug fortran/17708] gfortran problem with goto inside loop
2004-09-28 8:28 [Bug fortran/17708] New: gfortran problem with goto inside loop mimo2 at free dot fr
` (4 preceding siblings ...)
2004-10-04 21:05 ` tobi at gcc dot gnu dot org
@ 2004-10-04 21:05 ` cvs-commit at gcc dot gnu dot org
2004-10-04 21:19 ` pinskia at gcc dot gnu dot org
6 siblings, 0 replies; 8+ messages in thread
From: cvs-commit at gcc dot gnu dot org @ 2004-10-04 21:05 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From cvs-commit at gcc dot gnu dot org 2004-10-04 21:05 -------
Subject: Bug 17708
CVSROOT: /cvs/gcc
Module name: gcc
Changes by: tobi@gcc.gnu.org 2004-10-04 21:05:08
Modified files:
gcc/fortran : ChangeLog parse.c
gcc/testsuite : ChangeLog
Added files:
gcc/testsuite/gfortran.dg: pr17708.f90
Log message:
fortran/
PR fortran/17708
* parse.c (accept_statement): Don't treat END DO like END IF and
END SELECT.
(parse_do_block): Generate possible END DO label inside END DO
block.
also, added ChangeLog entry for previous commit.
testsuite/
PR fortran/17708
* gfortran.dg/pr17708.f90: New test.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/fortran/ChangeLog.diff?cvsroot=gcc&r1=1.224&r2=1.225
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/fortran/parse.c.diff?cvsroot=gcc&r1=1.19&r2=1.20
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.4384&r2=1.4385
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gfortran.dg/pr17708.f90.diff?cvsroot=gcc&r1=NONE&r2=1.1
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17708
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug fortran/17708] gfortran problem with goto inside loop
2004-09-28 8:28 [Bug fortran/17708] New: gfortran problem with goto inside loop mimo2 at free dot fr
` (3 preceding siblings ...)
2004-09-28 16:46 ` tobi at gcc dot gnu dot org
@ 2004-10-04 21:05 ` tobi at gcc dot gnu dot org
2004-10-04 21:05 ` cvs-commit at gcc dot gnu dot org
2004-10-04 21:19 ` pinskia at gcc dot gnu dot org
6 siblings, 0 replies; 8+ messages in thread
From: tobi at gcc dot gnu dot org @ 2004-10-04 21:05 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From tobi at gcc dot gnu dot org 2004-10-04 21:05 -------
Fixed.
--
What |Removed |Added
----------------------------------------------------------------------------
CC| |tobi at gcc dot gnu dot org
Status|NEW |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17708
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug fortran/17708] gfortran problem with goto inside loop
2004-09-28 8:28 [Bug fortran/17708] New: gfortran problem with goto inside loop mimo2 at free dot fr
` (5 preceding siblings ...)
2004-10-04 21:05 ` cvs-commit at gcc dot gnu dot org
@ 2004-10-04 21:19 ` pinskia at gcc dot gnu dot org
6 siblings, 0 replies; 8+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-10-04 21:19 UTC (permalink / raw)
To: gcc-bugs
--
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |4.0.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17708
^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2004-10-04 21:19 UTC | newest]
Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
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2004-09-28 8:28 [Bug fortran/17708] New: gfortran problem with goto inside loop mimo2 at free dot fr
2004-09-28 11:35 ` [Bug fortran/17708] " pinskia at gcc dot gnu dot org
2004-09-28 13:53 ` tobi at gcc dot gnu dot org
2004-09-28 16:07 ` tobi at gcc dot gnu dot org
2004-09-28 16:46 ` tobi at gcc dot gnu dot org
2004-10-04 21:05 ` tobi at gcc dot gnu dot org
2004-10-04 21:05 ` cvs-commit at gcc dot gnu dot org
2004-10-04 21:19 ` pinskia at gcc dot gnu dot org
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