[Bug testsuite/95706] New: New test case gfortran.dg/pr95690.f90 fails

[Bug testsuite/95706] New: New test case gfortran.dg/pr95690.f90 fails

[seurer at linux dot vnet.ibm.com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95706

            Bug ID: 95706
           Summary: New test case gfortran.dg/pr95690.f90 fails
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: testsuite
          Assignee: unassigned at gcc dot gnu.org
          Reporter: seurer at linux dot vnet.ibm.com
  Target Milestone: ---

g:a97e49a89d11b302b12ec319a3316ba78adca02a, r11-1349 

Executing on host:
/home/seurer/gcc/git/build/gcc-test/gcc/testsuite/gfortran/../../gfortran
-B/home/seurer/gcc/git/build/gcc-test/gcc/testsuite/gfortran/../../
-B/home/seurer/gcc/git/build/gcc-test/powerpc64le-unknown-linux-gnu/./libgfortran/
/home/seurer/gcc/git/gcc-test/gcc/testsuite/gfortran.dg/pr95690.f90   
-fno-diagnostics-show-caret -fno-diagnostics-show-line-numbers
-fdiagnostics-color=never  -fdiagnostics-urls=never 
-fno-diagnostics-show-caret -fno-diagnostics-show-line-numbers
-fdiagnostics-color=never  -fdiagnostics-urls=never    -O   -pedantic-errors -S
-o pr95690.s    (timeout = 300)
spawn -ignore SIGHUP
/home/seurer/gcc/git/build/gcc-test/gcc/testsuite/gfortran/../../gfortran
-B/home/seurer/gcc/git/build/gcc-test/gcc/testsuite/gfortran/../../
-B/home/seurer/gcc/git/build/gcc-test/powerpc64le-unknown-linux-gnu/./libgfortran/
/home/seurer/gcc/git/gcc-test/gcc/testsuite/gfortran.dg/pr95690.f90
-fno-diagnostics-show-caret -fno-diagnostics-show-line-numbers
-fdiagnostics-color=never -fdiagnostics-urls=never -fno-diagnostics-show-caret
-fno-diagnostics-show-line-numbers -fdiagnostics-color=never
-fdiagnostics-urls=never -O -pedantic-errors -S -o pr95690.s
/home/seurer/gcc/git/gcc-test/gcc/testsuite/gfortran.dg/pr95690.f90:6:0: Error:
initializer for floating value is not a floating constant
compiler exited with status 1
FAIL: gfortran.dg/pr95690.f90   -O   (test for errors, line 5)
Executing on host:
/home/seurer/gcc/git/build/gcc-test/gcc/testsuite/gfortran/../../gfortran
-B/home/seurer/gcc/git/build/gcc-test/gcc/testsuite/gfortran/../../
-B/home/seurer/gcc/git/build/gcc-test/powerpc64le-unknown-linux-gnu/./libgfortran/
exceptions_enabled590613.cc    -fno-diagnostics-show-caret
-fno-diagnostics-show-line-numbers -fdiagnostics-color=never 
-fdiagnostics-urls=never  -fno-diagnostics-show-caret
-fno-diagnostics-show-line-numbers -fdiagnostics-color=never 
-fdiagnostics-urls=never  -S -o exceptions_enabled590613.s    (timeout = 300)
spawn -ignore SIGHUP
/home/seurer/gcc/git/build/gcc-test/gcc/testsuite/gfortran/../../gfortran
-B/home/seurer/gcc/git/build/gcc-test/gcc/testsuite/gfortran/../../
-B/home/seurer/gcc/git/build/gcc-test/powerpc64le-unknown-linux-gnu/./libgfortran/
exceptions_enabled590613.cc -fno-diagnostics-show-caret
-fno-diagnostics-show-line-numbers -fdiagnostics-color=never
-fdiagnostics-urls=never -fno-diagnostics-show-caret
-fno-diagnostics-show-line-numbers -fdiagnostics-color=never
-fdiagnostics-urls=never -S -o exceptions_enabled590613.s
FAIL: gfortran.dg/pr95690.f90   -O  (test for excess errors)
Excess errors:
/home/seurer/gcc/git/gcc-test/gcc/testsuite/gfortran.dg/pr95690.f90:6:0: Error:
initializer for floating value is not a floating constant

[Bug testsuite/95706] New test case gfortran.dg/pr95690.f90 fails

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95706

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Why on earth does it show the error on line 6 on powerpc?!

[Bug testsuite/95706] New test case gfortran.dg/pr95690.f90 fails

[seurer at linux dot vnet.ibm.com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95706

--- Comment #2 from Bill Seurer <seurer at linux dot vnet.ibm.com> ---
No idea, sorry.  Is that the problem?  Supposed to be an error but on a
different line?

[Bug testsuite/95706] New test case gfortran.dg/pr95690.f90 fails

[rguenther at suse dot de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95706

--- Comment #3 from rguenther at suse dot de <rguenther at suse dot de> ---
On Wed, 17 Jun 2020, seurer at linux dot vnet.ibm.com wrote:

> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95706
> 
> --- Comment #2 from Bill Seurer <seurer at linux dot vnet.ibm.com> ---
> No idea, sorry.  Is that the problem?  Supposed to be an error but on a
> different line?

Yes.  On line 5, see the dg-error marker.

[Bug testsuite/95706] New test case gfortran.dg/pr95690.f90 fails

[clyon at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95706

Christophe Lyon <clyon at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |clyon at gcc dot gnu.org

--- Comment #4 from Christophe Lyon <clyon at gcc dot gnu.org> ---
Seen on arm and aarch64 too.

[Bug testsuite/95706] New test case gfortran.dg/pr95690.f90 fails

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95706

--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
*** Bug 95893 has been marked as a duplicate of this bug. ***

[Bug testsuite/95706] New test case gfortran.dg/pr95690.f90 fails

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95706

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Version|11.0                        |10.1.1
      Known to fail|                            |10.1.1, 11.0

--- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> ---
Now also on the branch.

[Bug testsuite/95706] New test case gfortran.dg/pr95690.f90 fails

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95706

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |dje at gcc dot gnu.org

--- Comment #7 from Richard Biener <rguenth at gcc dot gnu.org> ---
*** Bug 96023 has been marked as a duplicate of this bug. ***

[Bug testsuite/95706] New test case gfortran.dg/pr95690.f90 fails

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95706

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2020-07-02
     Ever confirmed|0                           |1

--- Comment #8 from Richard Biener <rguenth at gcc dot gnu.org> ---
The interesting thing is that for a x86_64 -> aarch64-linux cross the error
_also_ appears on line 5:

> ./f951 -quiet /home/rguenther/src/gcc3/gcc/testsuite/gfortran.dg/pr95690.f90 -o pr95690.s -fno-diagnostics-show-caret
/home/rguenther/src/gcc3/gcc/testsuite/gfortran.dg/pr95690.f90:5:0: Error:
initializer for floating value is not a floating constant

so - what line number does the test report for a aarch64 -> x86_64-linux cross?

Note the error is emitted via output_constant via

4980        case REAL_TYPE:
4981          if (TREE_CODE (exp) != REAL_CST)
4982            error ("initializer for floating value is not a floating
constant");

so it depends on input_location (ick).  Now the question is where on earth
input_location has a dependence on the host ...

On x86_64 the respective location is set via

New value = 2147483652
expand_gimple_stmt (stmt=<gimple_call 0x7ffff69dd260>)
    at /home/rguenther/src/gcc3/gcc/cfgexpand.c:3847
3847      expand_gimple_stmt_1 (stmt);
(gdb) l
3842         it would be better if the diagnostic routines used the source
location
3843         embedded in the tree nodes rather than globals.  */
3844      if (gimple_has_location (stmt))
3845        input_location = gimple_location (stmt);
3846
3847      expand_gimple_stmt_1 (stmt);
(gdb) p debug_gimple_stmt (stmt)
# .MEM_7 = VDEF <.MEM_6>
_gfortran_transfer_real_write (&dt_parm.0, &C.3905, 4);

which is where we expand C.3905 from.

[Bug testsuite/95706] New test case gfortran.dg/pr95690.f90 fails

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95706

--- Comment #9 from Richard Biener <rguenth at gcc dot gnu.org> ---
David "fixed" this on trunk with the following, the testcase still fails on the
branch and of course we don't know why it exhibits this particular behavior.

commit b260e9123e3c80e0f4e18e6a6ac988d63042e741
Author: David Edelsohn <dje.gcc@gmail.com>
Date:   Wed Jul 1 14:05:26 2020 -0400

    testsuite: Adjust gfortran.dg/pr95690.f90 line number.

    gfortran produces associates a different line number for the same error
    message depending on x86 versus other architectures.  This patch adjusts
    the dg-error line number depending on the target.

    gcc/testsuite/ChangeLog

    2020-07-01  David Edelsohn  <dje.gcc@gmail.com>

            * gfortran.dg/pr95690.f90: Adjust dg-error line number.

[Bug testsuite/95706] New test case gfortran.dg/pr95690.f90 fails

[ro at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95706

Rainer Orth <ro at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Target|powerpc64*-linux-gnu        |powerpc64*-linux-gnu,
                   |                            |sparc-sun-solaris2.11
               Host|powerpc64*-linux-gnu        |powerpc64*-linux-gnu,
                   |                            |sparc-sun-solaris2.11
                 CC|                            |ro at gcc dot gnu.org
              Build|powerpc64*-linux-gnu        |powerpc64*-linux-gnu,
                   |                            |sparc-sun-solaris2.11

--- Comment #10 from Rainer Orth <ro at gcc dot gnu.org> ---
(In reply to Richard Biener from comment #9)
> David "fixed" this on trunk with the following, the testcase still fails on
> the branch and of course we don't know why it exhibits this particular
> behavior.

This change broke the test on sparc-sun-solaris2.11 (both 32 and 64-bit):

+FAIL: gfortran.dg/pr95690.f90   -O   (test for errors, line 6)
+FAIL: gfortran.dg/pr95690.f90   -O  (test for excess errors)

Excess errors:
/vol/gcc/src/hg/master/local/gcc/testsuite/gfortran.dg/pr95690.f90:5:0: Error:
initializer for floating value is not a floating constant

[Bug testsuite/95706] New test case gfortran.dg/pr95690.f90 fails

[dje at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95706

--- Comment #11 from David Edelsohn <dje at gcc dot gnu.org> ---
I added Solaris to the list of targets that see the error on line 5.  Add it
wherever your target sees it.

[Bug testsuite/95706] New test case gfortran.dg/pr95690.f90 fails

[ro at CeBiTec dot Uni-Bielefeld.DE]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95706

--- Comment #12 from ro at CeBiTec dot Uni-Bielefeld.DE <ro at CeBiTec dot Uni-Bielefeld.DE> ---
> --- Comment #11 from David Edelsohn <dje at gcc dot gnu.org> ---
> I added Solaris to the list of targets that see the error on line 5.  Add it
> wherever your target sees it.

This has almost certainly nothing to do with Solaris per se, but just
piles hack upon hack without trying to understand why the test FAILs on
some targets, but not on others.

So far, we have failure reports for at least
powerpc64le-unknown-linux-gnu, armv8l-unknown-linux-gnueabihf,
s390x-ibm-linux-gnu, aarch64-unknown-linux-gnu, arm-none-linux-gnueabi,
powerpc-ibm-aix7.2.0.0, ia64-suse-linux-gnu, m68k-unknown-linux-gnu.

This needs to be analyzed, not hacked around.  Besides, the patch is
supposed to be posted to gcc-patches.

[Bug testsuite/95706] New test case gfortran.dg/pr95690.f90 fails

[danglin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95706

John David Anglin <danglin at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Target|powerpc64*-linux-gnu,       |powerpc64*-linux-gnu,
                   |sparc-sun-solaris2.11       |sparc-sun-solaris2.11,
                   |                            |hppa-unknown-linux-gnu
   Last reconfirmed|2020-07-02 00:00:00         |2022-12-14
              Build|powerpc64*-linux-gnu,       |powerpc64*-linux-gnu,
                   |sparc-sun-solaris2.11       |sparc-sun-solaris2.11,
                   |                            |hppa-unknown-linux-gnu
               Host|powerpc64*-linux-gnu,       |powerpc64*-linux-gnu,
                   |sparc-sun-solaris2.11       |sparc-sun-solaris2.11,
                   |                            |hppa-unknown-linux-gnu
                 CC|                            |danglin at gcc dot gnu.org

--- Comment #13 from John David Anglin <danglin at gcc dot gnu.org> ---
On hppa-unknown-linux-gnu, error is also on line 5:

/home/dave/gnu/gcc/gcc/gcc/testsuite/gfortran.dg/pr95690.f90:5:21: Error:
initializer for floating value is not a floating constant

[Bug testsuite/95706] New test case gfortran.dg/pr95690.f90 fails

[danglin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95706

--- Comment #14 from John David Anglin <danglin at gcc dot gnu.org> ---
Executing on host:
/home/dave/gnu/gcc/objdir/gcc/testsuite/gfortran/../../gfortran
-B/home/dave/gnu/gcc/objdir/gcc/testsuite/gfortran/../../
-B/home/dave/gnu/gcc/objdir/hppa-linux-gnu/./libgfortran/ 
/home/dave/gnu/gcc/gcc/gcc/testsuite/gfortran.dg/pr95690.f90   
-fdiagnostics-plain-output  -fdiagnostics-plain-output    -O   -pedantic-errors
-S -o pr95690.s    (timeout = 300)
spawn -ignore SIGHUP
/home/dave/gnu/gcc/objdir/gcc/testsuite/gfortran/../../gfortran
-B/home/dave/gnu/gcc/objdir/gcc/testsuite/gfortran/../../
-B/home/dave/gnu/gcc/objdir/hppa-linux-gnu/./libgfortran/
/home/dave/gnu/gcc/gcc/gcc/testsuite/gfortran.dg/pr95690.f90
-fdiagnostics-plain-output -fdiagnostics-plain-output -O -pedantic-errors -S -o
pr95690.s
/home/dave/gnu/gcc/gcc/gcc/testsuite/gfortran.dg/pr95690.f90:5:21: Error:
initializer for floating value is not a floating constant
compiler exited with status 1
FAIL: gfortran.dg/pr95690.f90   -O   (test for errors, line 6)
FAIL: gfortran.dg/pr95690.f90   -O  (test for excess errors)
Excess errors:
/home/dave/gnu/gcc/gcc/gcc/testsuite/gfortran.dg/pr95690.f90:5:21: Error:
initializer for floating value is not a floating constant

[Bug testsuite/95706] New test case gfortran.dg/pr95690.f90 fails

[vital.had at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95706

Sergey Fedorov <vital.had at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |vital.had at gmail dot com

--- Comment #15 from Sergey Fedorov <vital.had at gmail dot com> ---
Also happens on powerpc-apple-darwin with gcc13:

Executing on host:
/Users/svacchanda/GCC_test/gcc_devel/gcc/testsuite/gfortran1/../../gfortran
-B/Users/svacchanda/GCC_test/gcc_devel/gcc/testsuite/gfortran1/../../
-B/Users/svacchanda/GCC_test/gcc_devel/powerpc-apple-darwin10/./libgfortran/
/Users/svacchanda/GCC_sources/gcc-git/gcc/testsuite/gfortran.dg/pr95690.f90   
-fdiagnostics-plain-output  -fdiagnostics-plain-output    -O   -pedantic-errors
-S -o pr95690.s    (timeout = 300)
spawn -ignore SIGHUP
/Users/svacchanda/GCC_test/gcc_devel/gcc/testsuite/gfortran1/../../gfortran
-B/Users/svacchanda/GCC_test/gcc_devel/gcc/testsuite/gfortran1/../../
-B/Users/svacchanda/GCC_test/gcc_devel/powerpc-apple-darwin10/./libgfortran/
/Users/svacchanda/GCC_sources/gcc-git/gcc/testsuite/gfortran.dg/pr95690.f90
-fdiagnostics-plain-output -fdiagnostics-plain-output -O -pedantic-errors -S -o
pr95690.s

/Users/svacchanda/GCC_sources/gcc-git/gcc/testsuite/gfortran.dg/pr95690.f90:5:21:
Error: initializer for floating value is not a floating constant

compiler exited with status 1
FAIL: gfortran.dg/pr95690.f90   -O   (test for errors, line 6)
FAIL: gfortran.dg/pr95690.f90   -O  (test for excess errors)