From 023dc4691c73ed594d5c1085f1aab897ca4a7153 Mon Sep 17 00:00:00 2001
From: Harald Anlauf <anlauf@gmx.de>
Date: Wed, 29 Nov 2023 21:47:24 +0100
Subject: [PATCH] Fortran: fix TARGET attribute of associating entity in
ASSOCIATE [PR112764]
The associating entity in an ASSOCIATE construct has the TARGET attribute
if and only if the selector is a variable and has either the TARGET or
POINTER attribute (e.g. F2018:11.1.3.3).
gcc/fortran/ChangeLog:
PR fortran/112764
* primary.cc (gfc_variable_attr): Set TARGET attribute of associating
entity dependent on TARGET or POINTER attribute of selector.
gcc/testsuite/ChangeLog:
PR fortran/112764
* gfortran.dg/associate_62.f90: New test.
---
gcc/fortran/primary.cc | 16 ++++++++++++++
gcc/testsuite/gfortran.dg/associate_62.f90 | 25 ++++++++++++++++++++++
2 files changed, 41 insertions(+)
create mode 100644 gcc/testsuite/gfortran.dg/associate_62.f90
@@ -2653,6 +2653,22 @@ gfc_variable_attr (gfc_expr *expr, gfc_typespec *ts)
if (pointer || attr.proc_pointer)
target = 1;
+ /* F2018:11.1.3.3: Other attributes of associate names
+ "The associating entity does not have the ALLOCATABLE or POINTER
+ attributes; it has the TARGET attribute if and only if the selector is
+ a variable and has either the TARGET or POINTER attribute." */
+ if (sym->attr.associate_var && sym->assoc && sym->assoc->target)
+ {
+ if (sym->assoc->target->expr_type == EXPR_VARIABLE)
+ {
+ symbol_attribute tgt_attr;
+ tgt_attr = gfc_expr_attr (sym->assoc->target);
+ target = (tgt_attr.pointer || tgt_attr.target);
+ }
+ else
+ target = 0;
+ }
+
if (ts != NULL && expr->ts.type == BT_UNKNOWN)
*ts = sym->ts;
new file mode 100644
@@ -0,0 +1,25 @@
+! { dg-do compile }
+! PR fortran/112764
+! Contributed by martin <mscfd@gmx.net>
+
+program assoc_target
+ implicit none
+ integer, dimension(:,:), pointer :: x
+ integer, pointer :: j
+ integer, allocatable, target :: z(:)
+ allocate (x(1:100,1:2), source=1)
+ associate (i1 => x(:,1))
+ j => i1(1)
+ print *, j
+ if (j /= 1) stop 1
+ end associate
+ deallocate (x)
+ allocate (z(3))
+ z(:) = [1,2,3]
+ associate (i2 => z(2:3))
+ j => i2(1)
+ print *, j
+ if (j /= 2) stop 2
+ end associate
+ deallocate (z)
+end program assoc_target
--
2.35.3