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* [Bug fortran/24168]  New: Problems with SPREAD and/or scalarization
@ 2005-10-02 18:00 kargl at gcc dot gnu dot org
  2006-05-12  9:24 ` [Bug fortran/24168] " paul dot richard dot thomas at cea dot fr
                   ` (4 more replies)
  0 siblings, 5 replies; 6+ messages in thread
From: kargl at gcc dot gnu dot org @ 2005-10-02 18:00 UTC (permalink / raw)
  To: gcc-bugs

The following program fails to compile.

program bug
 implicit none
 integer, parameter :: nx=4,ny=4
 real, dimension(nx,ny) :: f, g
 real, dimension(nx) :: x
 integer :: i
 x = cshift((/ (i, i = 1, nx) /), nx/2) * 2
 g = spread(x, 2, ny)
 !
 ! x and g above (which compiles) are equivalent to f below (which doesn't).
 !
 f = spread(cshift((/ (i, i = 1, nx) /), nx/2) * 2, 2, ny)
end program bug

kargl[236] gfc41 -o z -static f.f90
 In file f.f90:9

 f = spread(cshift((/ (i, i = 1, nx) /), nx/2) * 2, 2, ny)
 1
Error: Incompatible ranks 2 and 1 in assignment at (1)

-fdump-parse-tree shows

ASSIGN x(FULL) __convert_i4_r4[[(((* _gfortran_cshift0_4[[(((/1, 2, 3, 4/))
  (2) ((arg not-present)))]] 2)))]]
ASSIGN g(FULL) _gfortran_spread[[((x(FULL)) (2) (4))]]

ASSIGN f(FULL) _gfortran_spread[[(((* _gfortran_cshift0_4[[(((/1, 2, 3, 4/))
  (2) ((arg not-present)))]] 2)) (2) (4))]]

which suggests that the scalarization of cshift0 has set the rank to 2
instead of 2.


-- 
           Summary: Problems with SPREAD and/or scalarization
           Product: gcc
           Version: 4.1.0
            Status: NEW
          Severity: normal
          Priority: P2
         Component: fortran
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: kargl@gcc.gnu.org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24168


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

* [Bug fortran/24168] Problems with SPREAD and/or scalarization
  2005-10-02 18:00 [Bug fortran/24168] New: Problems with SPREAD and/or scalarization kargl at gcc dot gnu dot org
@ 2006-05-12  9:24 ` paul dot richard dot thomas at cea dot fr
  2006-06-06 11:16 ` paul dot richard dot thomas at cea dot fr
                   ` (3 subsequent siblings)
  4 siblings, 0 replies; 6+ messages in thread
From: paul dot richard dot thomas at cea dot fr @ 2006-05-12  9:24 UTC (permalink / raw)
  To: gcc-bugs



------- Comment #1 from paul dot richard dot thomas at cea dot fr  2006-05-12 09:23 -------
I find this to be "surprising":

$ cat pr24168.f90;rm a.exe;/irun/bin/gfortran -fdump-tree-original pr24168.f90;
./a
program bug
 implicit none
 integer, parameter :: nx=2,ny=2
 real, dimension(nx,ny) :: f
 real, dimension(nx) :: x
 integer, dimension(nx) :: p
 integer :: i
 x = real ((/ (i, i = 1, nx) /))
 print '(A,2F4.1)', "x = ", x
 print '(A,2F4.1)', "cshift( x, nx/2) * 2 = ",cshift( x, nx/2) * 2
 print '(A,4F4.1)', "spread(cshift( x, nx/2) * 2, 2, ny) = ", spread(cshift( x,
nx/2) * 2, 2, ny)
end program bug

x =  1.0 2.0
cshift( x, nx/2) * 2 =  4.0 2.0
spread(cshift( x, nx/2) * 2, 2, ny) =  4.0 4.0 4.0 4.0

Paul


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24168


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

* [Bug fortran/24168] Problems with SPREAD and/or scalarization
  2005-10-02 18:00 [Bug fortran/24168] New: Problems with SPREAD and/or scalarization kargl at gcc dot gnu dot org
  2006-05-12  9:24 ` [Bug fortran/24168] " paul dot richard dot thomas at cea dot fr
@ 2006-06-06 11:16 ` paul dot richard dot thomas at cea dot fr
  2006-06-07  7:21 ` pault at gcc dot gnu dot org
                   ` (2 subsequent siblings)
  4 siblings, 0 replies; 6+ messages in thread
From: paul dot richard dot thomas at cea dot fr @ 2006-06-06 11:16 UTC (permalink / raw)
  To: gcc-bugs



------- Comment #2 from paul dot richard dot thomas at cea dot fr  2006-06-06 10:26 -------
Created an attachment (id=11607)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=11607&action=view)
Patch and testcase for the PR

The problem lay in simplification of the binary expression because the rank of
the operands was not transferred.

I will submit tonight.

Paul


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24168


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

* [Bug fortran/24168] Problems with SPREAD and/or scalarization
  2005-10-02 18:00 [Bug fortran/24168] New: Problems with SPREAD and/or scalarization kargl at gcc dot gnu dot org
  2006-05-12  9:24 ` [Bug fortran/24168] " paul dot richard dot thomas at cea dot fr
  2006-06-06 11:16 ` paul dot richard dot thomas at cea dot fr
@ 2006-06-07  7:21 ` pault at gcc dot gnu dot org
  2006-06-11 22:33 ` pault at gcc dot gnu dot org
  2006-06-11 22:37 ` pault at gcc dot gnu dot org
  4 siblings, 0 replies; 6+ messages in thread
From: pault at gcc dot gnu dot org @ 2006-06-07  7:21 UTC (permalink / raw)
  To: gcc-bugs



------- Comment #3 from pault at gcc dot gnu dot org  2006-06-07 07:20 -------
Subject: Bug 24168

Author: pault
Date: Wed Jun  7 07:20:39 2006
New Revision: 114461

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=114461
Log:
2006-06-07  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/23091
        * resolve.c (resolve_fl_variable): Error if an automatic
        object has the SAVE attribute.

        PR fortran/24168
        * expr.c (simplify_intrinsic_op): Transfer the rank and
        the locus to the simplified expression.

        PR fortran/25090
        PR fortran/25058
        * gfortran.h : Add int entry_id to gfc_symbol.
        * resolve.c : Add static variables current_entry_id and
        specification_expr.
        (resolve_variable): During code resolution, check if a
        reference to a dummy variable in an executable expression
        is preceded by its appearance as a parameter in an entry.
        Likewise check its specification expressions.
        (resolve_code): Update current_entry_id on EXEC_ENTRY.
        (resolve_charlen, resolve_fl_variable): Set and reset
        specifiaction_expr.
        (is_non_constant_shape_array): Do not return on detection
        of a variable but continue to resolve all the expressions.
        (resolve_codes): set current_entry_id to an out of range
        value.

2006-06-07  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/23091
        * gfortran.dg/saved_automatic_1.f90: New test.

        PR fortran/24168
        * gfortran.dg/array_simplify_1.f90: New test.

        PR fortran/25090
        * gfortran.dg/entry_dummy_ref_1.f90: New test.

        PR fortran/25058
        * gfortran.dg/entry_dummy_ref_2.f90: New test.




Added:
    trunk/gcc/testsuite/gfortran.dg/array_simplify_1.f90
    trunk/gcc/testsuite/gfortran.dg/entry_dummy_ref_1.f90
    trunk/gcc/testsuite/gfortran.dg/entry_dummy_ref_2.f90
    trunk/gcc/testsuite/gfortran.dg/saved_automatic_1.f90
Modified:
    trunk/gcc/fortran/ChangeLog
    trunk/gcc/fortran/expr.c
    trunk/gcc/fortran/gfortran.h
    trunk/gcc/fortran/resolve.c
    trunk/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24168


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

* [Bug fortran/24168] Problems with SPREAD and/or scalarization
  2005-10-02 18:00 [Bug fortran/24168] New: Problems with SPREAD and/or scalarization kargl at gcc dot gnu dot org
                   ` (2 preceding siblings ...)
  2006-06-07  7:21 ` pault at gcc dot gnu dot org
@ 2006-06-11 22:33 ` pault at gcc dot gnu dot org
  2006-06-11 22:37 ` pault at gcc dot gnu dot org
  4 siblings, 0 replies; 6+ messages in thread
From: pault at gcc dot gnu dot org @ 2006-06-11 22:33 UTC (permalink / raw)
  To: gcc-bugs



------- Comment #4 from pault at gcc dot gnu dot org  2006-06-11 22:32 -------
Subject: Bug 24168

Author: pault
Date: Sun Jun 11 22:32:26 2006
New Revision: 114551

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=114551
Log:
2006-06-12  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/24558
        PR fortran/20877
        PR fortran/25047
        * decl.c (get_proc_name): Add new argument to flag that a
        module function entry is being treated. If true, correct
        error condition, add symtree to module namespace and add
        a module procedure.
        (gfc_match_function_decl, gfc_match_entry,
        gfc_match_subroutine): Use the new argument in calls to
        get_proc_name.
        * resolve.c (resolve_entries): ENTRY symbol reference to
        to master entry namespace if a module function.
        * trans-decl.c (gfc_create_module_variable): Return if
        the symbol is an entry.

        PR fortran/23091
        * resolve.c (resolve_fl_variable): Error if an automatic
        object has the SAVE attribute.

        PR fortran/24168
        * expr.c (simplify_intrinsic_op): Transfer the rank and
        the locus to the simplified expression.

        PR fortran/25090
        PR fortran/25058
        * gfortran.h : Add int entry_id to gfc_symbol.
        * resolve.c : Add static variables current_entry_id and
        specification_expr.
        (resolve_variable): During code resolution, check if a
        reference to a dummy variable in an executable expression
        is preceded by its appearance as a parameter in an entry.
        Likewise check its specification expressions.
        (resolve_code): Update current_entry_id on EXEC_ENTRY.
        (resolve_charlen, resolve_fl_variable): Set and reset
        specifiaction_expr.
        (is_non_constant_shape_array): Do not return on detection
        of a variable but continue to resolve all the expressions.
        (resolve_codes): set current_entry_id to an out of range
        value.

2006-06-12  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/24558
        * gfortran.dg/entry_6.f90: New test.

        PR fortran/20877
        PR fortran/25047
        * gfortran.dg/entry_7.f90: New test.

        PR fortran/23091
        * gfortran.dg/saved_automatic_1.f90: New test.

        PR fortran/24168
        * gfortran.dg/array_simplify_1.f90: New test.

        PR fortran/25090
        * gfortran.dg/entry_dummy_ref_1.f90: New test.

        PR fortran/25058
        * gfortran.dg/entry_dummy_ref_2.f90: New test.

Added:
    branches/gcc-4_1-branch/gcc/testsuite/gfortran.dg/array_simplify_1.f90
    branches/gcc-4_1-branch/gcc/testsuite/gfortran.dg/entry_6.f90
    branches/gcc-4_1-branch/gcc/testsuite/gfortran.dg/entry_7.f90
    branches/gcc-4_1-branch/gcc/testsuite/gfortran.dg/entry_dummy_ref_1.f90
    branches/gcc-4_1-branch/gcc/testsuite/gfortran.dg/entry_dummy_ref_2.f90
    branches/gcc-4_1-branch/gcc/testsuite/gfortran.dg/saved_automatic_1.f90
Modified:
    branches/gcc-4_1-branch/gcc/fortran/ChangeLog
    branches/gcc-4_1-branch/gcc/fortran/decl.c
    branches/gcc-4_1-branch/gcc/fortran/expr.c
    branches/gcc-4_1-branch/gcc/fortran/gfortran.h
    branches/gcc-4_1-branch/gcc/fortran/resolve.c
    branches/gcc-4_1-branch/gcc/fortran/trans-decl.c
    branches/gcc-4_1-branch/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24168


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

* [Bug fortran/24168] Problems with SPREAD and/or scalarization
  2005-10-02 18:00 [Bug fortran/24168] New: Problems with SPREAD and/or scalarization kargl at gcc dot gnu dot org
                   ` (3 preceding siblings ...)
  2006-06-11 22:33 ` pault at gcc dot gnu dot org
@ 2006-06-11 22:37 ` pault at gcc dot gnu dot org
  4 siblings, 0 replies; 6+ messages in thread
From: pault at gcc dot gnu dot org @ 2006-06-11 22:37 UTC (permalink / raw)
  To: gcc-bugs



------- Comment #5 from pault at gcc dot gnu dot org  2006-06-11 22:36 -------
Cracked on trunk and 4.1.

Paul


-- 

pault at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24168


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

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2005-10-02 18:00 [Bug fortran/24168] New: Problems with SPREAD and/or scalarization kargl at gcc dot gnu dot org
2006-05-12  9:24 ` [Bug fortran/24168] " paul dot richard dot thomas at cea dot fr
2006-06-06 11:16 ` paul dot richard dot thomas at cea dot fr
2006-06-07  7:21 ` pault at gcc dot gnu dot org
2006-06-11 22:33 ` pault at gcc dot gnu dot org
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