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* [Bug fortran/108592] New: In IF statements -Winteger-division is repeated 4 times
@ 2023-01-29 19:06 rimvydas.jas at gmail dot com
  2023-01-29 20:44 ` [Bug fortran/108592] " anlauf at gcc dot gnu.org
                   ` (4 more replies)
  0 siblings, 5 replies; 6+ messages in thread
From: rimvydas.jas at gmail dot com @ 2023-01-29 19:06 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108592

            Bug ID: 108592
           Summary: In IF statements -Winteger-division is repeated 4
                    times
           Product: gcc
           Version: 13.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: rimvydas.jas at gmail dot com
  Target Milestone: ---

$ cat intdiv.f90
program foo
if (8 < (20/9)) stop 8
end program

$ gfortran -Wall intdiv.f90
intdiv.f90:2:11:

    2 | if (8 < (20/9)) stop 8
      |           1
Warning: Integer division truncated to constant ‘2’ at (1) [-Winteger-division]
intdiv.f90:2:11:

    2 | if (8 < (20/9)) stop 8
      |           1
Warning: Integer division truncated to constant ‘2’ at (1) [-Winteger-division]
intdiv.f90:2:11:

    2 | if (8 < (20/9)) stop 8
      |           1
Warning: Integer division truncated to constant ‘2’ at (1) [-Winteger-division]
intdiv.f90:2:11:

    2 | if (8 < (20/9)) stop 8
      |           1
Warning: Integer division truncated to constant ‘2’ at (1) [-Winteger-division]

Diagnostic is given only twice for if/then/endif form:
if (8 < (20/9)) then ; endif

^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug fortran/108592] In IF statements -Winteger-division is repeated 4 times
  2023-01-29 19:06 [Bug fortran/108592] New: In IF statements -Winteger-division is repeated 4 times rimvydas.jas at gmail dot com
@ 2023-01-29 20:44 ` anlauf at gcc dot gnu.org
  2023-01-30 21:01 ` tkoenig at gcc dot gnu.org
                   ` (3 subsequent siblings)
  4 siblings, 0 replies; 6+ messages in thread
From: anlauf at gcc dot gnu.org @ 2023-01-29 20:44 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108592

anlauf at gcc dot gnu.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|                            |2023-01-29
     Ever confirmed|0                           |1
                 CC|                            |anlauf at gcc dot gnu.org,
                   |                            |tkoenig at gcc dot gnu.org
             Status|UNCONFIRMED                 |NEW

--- Comment #1 from anlauf at gcc dot gnu.org ---
Patch that fixes the multiple warnings:

diff --git a/gcc/fortran/arith.cc b/gcc/fortran/arith.cc
index 6de6d21c73d..d0d1c0b03d2 100644
--- a/gcc/fortran/arith.cc
+++ b/gcc/fortran/arith.cc
@@ -778,7 +778,7 @@ gfc_arith_divide (gfc_expr *op1, gfc_expr *op2, gfc_expr
**resultp)
            {
              char *p;
              p = mpz_get_str (NULL, 10, result->value.integer);
-             gfc_warning_now (OPT_Winteger_division, "Integer division "
+             gfc_warning (OPT_Winteger_division, "Integer division "
                               "truncated to constant %qs at %L", p,
                               &op1->where);
              free (p);

This also regtests cleanly.

@Thomas: do you remember the reason you chose the "_now" version?

^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug fortran/108592] In IF statements -Winteger-division is repeated 4 times
  2023-01-29 19:06 [Bug fortran/108592] New: In IF statements -Winteger-division is repeated 4 times rimvydas.jas at gmail dot com
  2023-01-29 20:44 ` [Bug fortran/108592] " anlauf at gcc dot gnu.org
@ 2023-01-30 21:01 ` tkoenig at gcc dot gnu.org
  2023-01-30 21:57 ` anlauf at gcc dot gnu.org
                   ` (2 subsequent siblings)
  4 siblings, 0 replies; 6+ messages in thread
From: tkoenig at gcc dot gnu.org @ 2023-01-30 21:01 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108592

--- Comment #2 from Thomas Koenig <tkoenig at gcc dot gnu.org> ---
(In reply to anlauf from comment #1)

> @Thomas: do you remember the reason you chose the "_now" version?

I'm not sure any more.  It's been a few years :-)

^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug fortran/108592] In IF statements -Winteger-division is repeated 4 times
  2023-01-29 19:06 [Bug fortran/108592] New: In IF statements -Winteger-division is repeated 4 times rimvydas.jas at gmail dot com
  2023-01-29 20:44 ` [Bug fortran/108592] " anlauf at gcc dot gnu.org
  2023-01-30 21:01 ` tkoenig at gcc dot gnu.org
@ 2023-01-30 21:57 ` anlauf at gcc dot gnu.org
  2023-02-05 21:53 ` cvs-commit at gcc dot gnu.org
  2023-02-05 21:55 ` anlauf at gcc dot gnu.org
  4 siblings, 0 replies; 6+ messages in thread
From: anlauf at gcc dot gnu.org @ 2023-01-30 21:57 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108592

anlauf at gcc dot gnu.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Assignee|unassigned at gcc dot gnu.org      |anlauf at gcc dot gnu.org
             Status|NEW                         |ASSIGNED

--- Comment #3 from anlauf at gcc dot gnu.org ---
(In reply to Thomas Koenig from comment #2)
> (In reply to anlauf from comment #1)
> 
> > @Thomas: do you remember the reason you chose the "_now" version?
> 
> I'm not sure any more.  It's been a few years :-)

Alright, so let's try to be less "chatty":

https://gcc.gnu.org/pipermail/fortran/2023-January/058862.html

^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug fortran/108592] In IF statements -Winteger-division is repeated 4 times
  2023-01-29 19:06 [Bug fortran/108592] New: In IF statements -Winteger-division is repeated 4 times rimvydas.jas at gmail dot com
                   ` (2 preceding siblings ...)
  2023-01-30 21:57 ` anlauf at gcc dot gnu.org
@ 2023-02-05 21:53 ` cvs-commit at gcc dot gnu.org
  2023-02-05 21:55 ` anlauf at gcc dot gnu.org
  4 siblings, 0 replies; 6+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2023-02-05 21:53 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108592

--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Harald Anlauf <anlauf@gcc.gnu.org>:

https://gcc.gnu.org/g:d042f118798ae0648b45f97e63b0e5ab7c82c8ef

commit r13-5705-gd042f118798ae0648b45f97e63b0e5ab7c82c8ef
Author: Harald Anlauf <anlauf@gmx.de>
Date:   Mon Jan 30 22:46:43 2023 +0100

    Fortran: prevent redundant integer division truncation warnings [PR108592]

    gcc/fortran/ChangeLog:

            PR fortran/108592
            * arith.cc (gfc_arith_divide): Emit integer division truncation
            warnings using gfc_warning instead of gfc_warning_now to prevent
            redundant messages.

    gcc/testsuite/ChangeLog:

            PR fortran/108592
            * gfortran.dg/pr108592.f90: New test.

^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug fortran/108592] In IF statements -Winteger-division is repeated 4 times
  2023-01-29 19:06 [Bug fortran/108592] New: In IF statements -Winteger-division is repeated 4 times rimvydas.jas at gmail dot com
                   ` (3 preceding siblings ...)
  2023-02-05 21:53 ` cvs-commit at gcc dot gnu.org
@ 2023-02-05 21:55 ` anlauf at gcc dot gnu.org
  4 siblings, 0 replies; 6+ messages in thread
From: anlauf at gcc dot gnu.org @ 2023-02-05 21:55 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108592

anlauf at gcc dot gnu.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
   Target Milestone|---                         |13.0
         Resolution|---                         |FIXED

--- Comment #5 from anlauf at gcc dot gnu.org ---
Fixed on mainline for gcc-13.

^ permalink raw reply	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2023-02-05 21:55 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2023-01-29 19:06 [Bug fortran/108592] New: In IF statements -Winteger-division is repeated 4 times rimvydas.jas at gmail dot com
2023-01-29 20:44 ` [Bug fortran/108592] " anlauf at gcc dot gnu.org
2023-01-30 21:01 ` tkoenig at gcc dot gnu.org
2023-01-30 21:57 ` anlauf at gcc dot gnu.org
2023-02-05 21:53 ` cvs-commit at gcc dot gnu.org
2023-02-05 21:55 ` anlauf at gcc dot gnu.org

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