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re PR fortran/38220 (C_LOC intrinsic non-pure and without explicit interface)

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2009-01-06  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/38220
	* interface.c (gfc_procedure_use):  Don't warn about functions
	from ISO_C_BINDING.
	* symbol.c (generate_isocbinding_symbol):  Mark c_loc and
	c_funloc as pure.

2009-01-06  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/38220
	* gfortran.dg/c_loc_pure_1.f90:  New test.

From-SVN: r143140
This commit is contained in:
Thomas Koenig 2009-01-06 23:03:18 +00:00
parent c10bf728da
commit a9c5fe7e72
5 changed files with 30 additions and 2 deletions
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8
gcc/fortran/ChangeLog
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@ -1,3 +1,11 @@
2009-01-06 Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/38220
* interface.c (gfc_procedure_use): Don't warn about functions
from ISO_C_BINDING.
* symbol.c (generate_isocbinding_symbol): Mark c_loc and
c_funloc as pure.
2009-01-05 Paul Thomas <pault@gcc.gnu.org>
PR fortran/38657

7
gcc/fortran/interface.c
View File

@ -2411,9 +2411,12 @@ void
gfc_procedure_use (gfc_symbol *sym, gfc_actual_arglist **ap, locus *where)
{
/* Warn about calls with an implicit interface. */
/* Warn about calls with an implicit interface. Special case
for calling a ISO_C_BINDING becase c_loc and c_funloc
are pseudo-unknown. */
if (gfc_option.warn_implicit_interface
&& sym->attr.if_source == IFSRC_UNKNOWN)
&& sym->attr.if_source == IFSRC_UNKNOWN
&& ! sym->attr.is_iso_c)
gfc_warning ("Procedure '%s' called with an implicit interface at %L",
sym->name, where);

1
gcc/fortran/symbol.c
View File

@ -4169,6 +4169,7 @@ generate_isocbinding_symbol (const char *mod_name, iso_c_binding_symbol s,
tmp_sym->result = tmp_sym;
tmp_sym->attr.external = 1;
tmp_sym->attr.use_assoc = 0;
tmp_sym->attr.pure = 1;
tmp_sym->attr.if_source = IFSRC_UNKNOWN;
tmp_sym->attr.proc = PROC_UNKNOWN;
}

5
gcc/testsuite/ChangeLog
View File

@ -1,3 +1,8 @@
2009-01-06 Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/38220
* gfortran.dg/c_loc_pure_1.f90: New test.
2009-01-06 Mikael Morin <mikael.morin@tele2.fr>
PR fortran/38669

11
gcc/testsuite/gfortran.dg/c_loc_pure_1.f90 Normal file
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@ -0,0 +1,11 @@
! { dg-do compile }
! { dg-options "-Wimplicit-interface" }
! PR 38220 - c_loc is pure and has an explicit interface
USE ISO_C_BINDING, ONLY: C_PTR, C_LOC
CONTAINS
PURE SUBROUTINE F(x)
INTEGER, INTENT(in), TARGET :: x
TYPE(C_PTR) :: px
px = C_LOC(x)
END SUBROUTINE
END