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* [Bug fortran/30871] New: incorrect error message for valid code
@ 2007-02-20 7:50 jv244 at cam dot ac dot uk
2007-02-20 16:53 ` [Bug fortran/30871] Pointer to substring rejected with "Different character lengths in pointer assignment" burnus at gcc dot gnu dot org
` (8 more replies)
0 siblings, 9 replies; 10+ messages in thread
From: jv244 at cam dot ac dot uk @ 2007-02-20 7:50 UTC (permalink / raw)
To: gcc-bugs
With recent trunk, gfortran incorrectly generates an error for the following
standard code:
TYPE data
CHARACTER(LEN=3) :: A
END TYPE
TYPE(data), DIMENSION(10), TARGET :: Z
CHARACTER(LEN=1), DIMENSION(:), POINTER :: ptr
Z(:)%A="123"
ptr=>Z(:)%A(2:2)
write(6,*) ptr
END
--
Summary: incorrect error message for valid code
Product: gcc
Version: 4.3.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: jv244 at cam dot ac dot uk
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30871
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug fortran/30871] Pointer to substring rejected with "Different character lengths in pointer assignment"
2007-02-20 7:50 [Bug fortran/30871] New: incorrect error message for valid code jv244 at cam dot ac dot uk
@ 2007-02-20 16:53 ` burnus at gcc dot gnu dot org
2007-03-03 10:46 ` fxcoudert at gcc dot gnu dot org
` (7 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: burnus at gcc dot gnu dot org @ 2007-02-20 16:53 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from burnus at gcc dot gnu dot org 2007-02-20 16:53 -------
Error: Different character lengths in pointer assignment at (1)
Compiles with g95, ifort and nagf95.
--
burnus at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |rejects-valid
Summary|incorrect error message for |Pointer to substring
|valid code |rejected with "Different
| |character lengths in pointer
| |assignment"
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30871
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug fortran/30871] Pointer to substring rejected with "Different character lengths in pointer assignment"
2007-02-20 7:50 [Bug fortran/30871] New: incorrect error message for valid code jv244 at cam dot ac dot uk
2007-02-20 16:53 ` [Bug fortran/30871] Pointer to substring rejected with "Different character lengths in pointer assignment" burnus at gcc dot gnu dot org
@ 2007-03-03 10:46 ` fxcoudert at gcc dot gnu dot org
2007-04-10 14:14 ` tobi at gcc dot gnu dot org
` (6 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: fxcoudert at gcc dot gnu dot org @ 2007-03-03 10:46 UTC (permalink / raw)
To: gcc-bugs
--
fxcoudert at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2007-03-03 10:46:40
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30871
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug fortran/30871] Pointer to substring rejected with "Different character lengths in pointer assignment"
2007-02-20 7:50 [Bug fortran/30871] New: incorrect error message for valid code jv244 at cam dot ac dot uk
2007-02-20 16:53 ` [Bug fortran/30871] Pointer to substring rejected with "Different character lengths in pointer assignment" burnus at gcc dot gnu dot org
2007-03-03 10:46 ` fxcoudert at gcc dot gnu dot org
@ 2007-04-10 14:14 ` tobi at gcc dot gnu dot org
2007-04-12 17:17 ` tobi at gcc dot gnu dot org
` (5 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: tobi at gcc dot gnu dot org @ 2007-04-10 14:14 UTC (permalink / raw)
To: gcc-bugs
--
tobi at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |tobi at gcc dot gnu dot org
|dot org |
Status|NEW |ASSIGNED
Last reconfirmed|2007-03-03 10:46:40 |2007-04-10 15:14:17
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30871
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug fortran/30871] Pointer to substring rejected with "Different character lengths in pointer assignment"
2007-02-20 7:50 [Bug fortran/30871] New: incorrect error message for valid code jv244 at cam dot ac dot uk
` (2 preceding siblings ...)
2007-04-10 14:14 ` tobi at gcc dot gnu dot org
@ 2007-04-12 17:17 ` tobi at gcc dot gnu dot org
2007-04-16 13:12 ` tobi at gcc dot gnu dot org
` (4 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: tobi at gcc dot gnu dot org @ 2007-04-12 17:17 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from tobi at gcc dot gnu dot org 2007-04-12 18:17 -------
This is not fixed with the patch for PR31266. The remaining issue looks
closely related to not using byte-sized strides in array descriptors.
--
tobi at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |tobi at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30871
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug fortran/30871] Pointer to substring rejected with "Different character lengths in pointer assignment"
2007-02-20 7:50 [Bug fortran/30871] New: incorrect error message for valid code jv244 at cam dot ac dot uk
` (3 preceding siblings ...)
2007-04-12 17:17 ` tobi at gcc dot gnu dot org
@ 2007-04-16 13:12 ` tobi at gcc dot gnu dot org
2007-07-03 18:23 ` jv244 at cam dot ac dot uk
` (3 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: tobi at gcc dot gnu dot org @ 2007-04-16 13:12 UTC (permalink / raw)
To: gcc-bugs
--
tobi at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|tobi at gcc dot gnu dot org |unassigned at gcc dot gnu
| |dot org
Status|ASSIGNED |NEW
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30871
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug fortran/30871] Pointer to substring rejected with "Different character lengths in pointer assignment"
2007-02-20 7:50 [Bug fortran/30871] New: incorrect error message for valid code jv244 at cam dot ac dot uk
` (4 preceding siblings ...)
2007-04-16 13:12 ` tobi at gcc dot gnu dot org
@ 2007-07-03 18:23 ` jv244 at cam dot ac dot uk
2007-09-03 11:49 ` pault at gcc dot gnu dot org
` (2 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: jv244 at cam dot ac dot uk @ 2007-07-03 18:23 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from jv244 at cam dot ac dot uk 2007-07-03 18:23 -------
this has become an ICE in the meanwhile
test.f90:6: internal compiler error: in gfc_conv_expr_descriptor, at
fortran/trans-array.c:4492
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30871
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug fortran/30871] Pointer to substring rejected with "Different character lengths in pointer assignment"
2007-02-20 7:50 [Bug fortran/30871] New: incorrect error message for valid code jv244 at cam dot ac dot uk
` (5 preceding siblings ...)
2007-07-03 18:23 ` jv244 at cam dot ac dot uk
@ 2007-09-03 11:49 ` pault at gcc dot gnu dot org
2007-09-16 9:18 ` pault at gcc dot gnu dot org
2007-09-16 9:39 ` pault at gcc dot gnu dot org
8 siblings, 0 replies; 10+ messages in thread
From: pault at gcc dot gnu dot org @ 2007-09-03 11:49 UTC (permalink / raw)
To: gcc-bugs
--
pault at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |pault at gcc dot gnu dot org
|dot org |
Status|NEW |ASSIGNED
Last reconfirmed|2007-04-10 15:14:17 |2007-09-03 11:48:57
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30871
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug fortran/30871] Pointer to substring rejected with "Different character lengths in pointer assignment"
2007-02-20 7:50 [Bug fortran/30871] New: incorrect error message for valid code jv244 at cam dot ac dot uk
` (6 preceding siblings ...)
2007-09-03 11:49 ` pault at gcc dot gnu dot org
@ 2007-09-16 9:18 ` pault at gcc dot gnu dot org
2007-09-16 9:39 ` pault at gcc dot gnu dot org
8 siblings, 0 replies; 10+ messages in thread
From: pault at gcc dot gnu dot org @ 2007-09-16 9:18 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from pault at gcc dot gnu dot org 2007-09-16 09:18 -------
Subject: Bug 30871
Author: pault
Date: Sun Sep 16 09:17:49 2007
New Revision: 128523
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=128523
Log:
2007-09-16 Paul Thomas <pault@gcc.gnu.org>
PR fortran/29396
PR fortran/29606
PR fortran/30625
PR fortran/30871
* trans.h : Add extra argument to gfc_build_array_ref. Rename
gfc_conv_aliased_arg to gfc_conv_subref_array_arg. Move
prototype of is_aliased_array to gfortran.h and rename it
gfc_is_subref_array. Add field span to lang_decl, add a new
decl lang specific flag accessed by GFC_DECL_SUBREF_ARRAY_P
and a new type flag GFC_DECL_SUBREF_ARRAY_P.
* trans.c (gfc_build_array_ref): Add the new argument, decl.
If this is a subreference array pointer, use the lang_decl
field 'span' to calculate the offset in bytes and use pointer
arithmetic to address the element.
* trans-array.c (gfc_conv_scalarized_array_ref,
gfc_conv_array_ref): Add the backend declaration as the third
field, if it is likely to be a subreference array pointer.
(gfc_conv_descriptor_dimension, gfc_trans_array_ctor_element,
gfc_trans_array_constructor_element, structure_alloc_comps,
gfc_conv_array_index_offset): For all other references to
gfc_build_array_ref, set the third argument to NULL.
(gfc_get_dataptr_offset): New function.
(gfc_conv_expr_descriptor): If the rhs of a pointer assignment
is a subreference array, then calculate the offset to the
subreference of the first element and set the descriptor data
pointer to this, using gfc_get_dataptr_offset.
trans-expr.c (gfc_get_expr_charlen): Use the expression for the
character length for a character subreference.
(gfc_conv_substring, gfc_conv_subref_array_arg): Add NULL for
third argument in call to gfc_build_array_ref.
(gfc_conv_aliased_arg): Rename to gfc_conv_subref_array_arg.
(is_aliased_array): Remove.
(gfc_conv_function_call): Change reference to is_aliased_array
to gfc_is_subref_array and reference to gfc_conv_aliased_arg to
gfc_conv_subref_array_arg.
(gfc_trans_pointer_assignment): Add the array element length to
the lang_decl 'span' field.
* gfortran.h : Add subref_array_pointer to symbol_attribute and
add the prototype for gfc_is_subref_array.
* trans-stmt.c : Add NULL for third argument in all references
to gfc_build_array_ref.
* expr.c (gfc_is_subref_array): Renamed is_aliased_array.
If this is a subreference array pointer, return true.
(gfc_check_pointer_assign): If the rhs is a subreference array,
set the lhs subreference_array_pointer attribute.
* trans-decl.c (gfc_get_symbol_decl): Allocate the lang_decl
field if the symbol is a subreference array pointer and set an
initial value of zero for the 'span' field.
* trans-io.c (set_internal_unit): Refer to is_subref_array and
gfc_conv_subref_array_arg.
(nml_get_addr_expr): Add NULL third argument to
gfc_build_array_ref.
(gfc_trans_transfer): Use the scalarizer for a subreference
array.
2007-09-16 Paul Thomas <pault@gcc.gnu.org>
PR fortran/29396
PR fortran/29606
PR fortran/30625
PR fortran/30871
* gfortran.dg/subref_array_pointer_1.f90: New test.
* gfortran.dg/subref_array_pointer_2.f90: New test.
Added:
trunk/gcc/testsuite/gfortran.dg/subref_array_pointer_1.f90
trunk/gcc/testsuite/gfortran.dg/subref_array_pointer_2.f90
Modified:
trunk/gcc/fortran/ChangeLog
trunk/gcc/fortran/expr.c
trunk/gcc/fortran/gfortran.h
trunk/gcc/fortran/trans-array.c
trunk/gcc/fortran/trans-decl.c
trunk/gcc/fortran/trans-expr.c
trunk/gcc/fortran/trans-io.c
trunk/gcc/fortran/trans-stmt.c
trunk/gcc/fortran/trans.c
trunk/gcc/fortran/trans.h
trunk/gcc/testsuite/ChangeLog
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30871
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug fortran/30871] Pointer to substring rejected with "Different character lengths in pointer assignment"
2007-02-20 7:50 [Bug fortran/30871] New: incorrect error message for valid code jv244 at cam dot ac dot uk
` (7 preceding siblings ...)
2007-09-16 9:18 ` pault at gcc dot gnu dot org
@ 2007-09-16 9:39 ` pault at gcc dot gnu dot org
8 siblings, 0 replies; 10+ messages in thread
From: pault at gcc dot gnu dot org @ 2007-09-16 9:39 UTC (permalink / raw)
To: gcc-bugs
------- Comment #5 from pault at gcc dot gnu dot org 2007-09-16 09:39 -------
Fixed on trunk
Paul
--
pault at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30871
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2007-02-20 7:50 [Bug fortran/30871] New: incorrect error message for valid code jv244 at cam dot ac dot uk
2007-02-20 16:53 ` [Bug fortran/30871] Pointer to substring rejected with "Different character lengths in pointer assignment" burnus at gcc dot gnu dot org
2007-03-03 10:46 ` fxcoudert at gcc dot gnu dot org
2007-04-10 14:14 ` tobi at gcc dot gnu dot org
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2007-07-03 18:23 ` jv244 at cam dot ac dot uk
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