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authorJanus Weil <janus@gcc.gnu.org>2011-02-08 23:51:04 +0100
committerJanus Weil <janus@gcc.gnu.org>2011-02-08 23:51:04 +0100
commit7522a064991a90ac167f51ff021df39975af067d (patch)
tree4362ef6f48f02cc5c8c1ab92556ccfb55016ca70 /gcc
parent4ad70280ecdbbec4582c2baaf9cc58d447bb78fd (diff)
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re PR fortran/45290 ([F08] pointer initialization)
2011-02-08 Janus Weil <janus@gcc.gnu.org> PR fortran/45290 * expr.c (gfc_check_assign_symbol): Reject pointers as pointer initialization target. 2011-02-08 Janus Weil <janus@gcc.gnu.org> PR fortran/45290 * gfortran.dg/pointer_init_6.f90: New. From-SVN: r169948
Diffstat (limited to 'gcc')
-rw-r--r--gcc/fortran/ChangeLog6
-rw-r--r--gcc/fortran/expr.c14
-rw-r--r--gcc/testsuite/ChangeLog5
-rw-r--r--gcc/testsuite/gfortran.dg/pointer_init_6.f9039
4 files changed, 63 insertions, 1 deletions
diff --git a/gcc/fortran/ChangeLog b/gcc/fortran/ChangeLog
index 4463c8d..8ee85c1 100644
--- a/gcc/fortran/ChangeLog
+++ b/gcc/fortran/ChangeLog
@@ -1,3 +1,9 @@
+2011-02-08 Janus Weil <janus@gcc.gnu.org>
+
+ PR fortran/45290
+ * expr.c (gfc_check_assign_symbol): Reject pointers as pointer
+ initialization target.
+
2011-02-07 Janne Blomqvist <jb@gcc.gnu.org>
Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
diff --git a/gcc/fortran/expr.c b/gcc/fortran/expr.c
index bcc23fc..b30bc64 100644
--- a/gcc/fortran/expr.c
+++ b/gcc/fortran/expr.c
@@ -3608,7 +3608,7 @@ gfc_check_assign_symbol (gfc_symbol *sym, gfc_expr *rvalue)
"must not be ALLOCATABLE ");
return FAILURE;
}
- if (!attr.target)
+ if (!attr.target || attr.pointer)
{
gfc_error ("Pointer initialization target at %C "
"must have the TARGET attribute");
@@ -3621,6 +3621,18 @@ gfc_check_assign_symbol (gfc_symbol *sym, gfc_expr *rvalue)
return FAILURE;
}
}
+
+ if (sym->attr.proc_pointer && rvalue->expr_type != EXPR_NULL)
+ {
+ /* F08:C1220. Additional checks for procedure pointer initialization. */
+ symbol_attribute attr = gfc_expr_attr (rvalue);
+ if (attr.proc_pointer)
+ {
+ gfc_error ("Procedure pointer initialization target at %L "
+ "may not be a procedure pointer", &rvalue->where);
+ return FAILURE;
+ }
+ }
return SUCCESS;
}
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 5a4fb3d..1ec8fd2 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2011-02-08 Janus Weil <janus@gcc.gnu.org>
+
+ PR fortran/45290
+ * gfortran.dg/pointer_init_6.f90: New.
+
2011-02-08 Jeff Law <law@redhat.com>
PR tree-optimization/42893
diff --git a/gcc/testsuite/gfortran.dg/pointer_init_6.f90 b/gcc/testsuite/gfortran.dg/pointer_init_6.f90
new file mode 100644
index 0000000..92cece3
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/pointer_init_6.f90
@@ -0,0 +1,39 @@
+! { dg-do compile }
+!
+! PR 45290: [F08] pointer initialization
+!
+! Contributed by Janus Weil <janus@gcc.gnu.org>
+
+module m1
+ implicit none
+ type :: t
+ integer, pointer :: p
+ integer :: i
+ end type
+ integer, target :: i
+ type(t), target :: x
+ integer, pointer :: p1 => i
+ integer, pointer :: p2 => p1 ! { dg-error "must have the TARGET attribute" }
+ integer, pointer :: p3 => x%p ! { dg-error "must have the TARGET attribute" }
+ integer, pointer :: p4 => x%i
+end module m1
+
+
+module m2
+
+ type :: t
+ procedure(s), pointer, nopass :: ppc
+ end type
+ type(t) :: x
+ procedure(s), pointer :: pp1 => s
+ procedure(s), pointer :: pp2 => pp1 ! { dg-error "may not be a procedure pointer" }
+ procedure(s), pointer :: pp3 => t%ppc ! { dg-error "Syntax error" }
+
+contains
+
+ subroutine s
+ end subroutine
+
+end module m2
+
+! { dg-final { cleanup-modules "m1 m2" } }