From 5098d35fb1997aa6fd6d7e37d0fd4501a5fe2f9d Mon Sep 17 00:00:00 2001
From: Harald Anlauf <anlauf@gmx.de>
Date: Wed, 16 Dec 2020 17:25:06 +0100
Subject: PR fortran/98284 - ICE in get_array_index

Reject DATA elements with the ALLOCATABLE attribute also when they are
components of a derived type.

gcc/fortran/ChangeLog:

	PR fortran/98284
	* resolve.c (check_data_variable): Reject DATA elements with the
	ALLOCATABLE attribute.

gcc/testsuite/ChangeLog:

	PR fortran/98284
	* gfortran.dg/pr98284.f90: New test.
---
 gcc/fortran/resolve.c                 |  7 +++++++
 gcc/testsuite/gfortran.dg/pr98284.f90 | 12 ++++++++++++
 2 files changed, 19 insertions(+)
 create mode 100644 gcc/testsuite/gfortran.dg/pr98284.f90

(limited to 'gcc')

diff --git a/gcc/fortran/resolve.c b/gcc/fortran/resolve.c
index 327dffb..05a5e43 100644
--- a/gcc/fortran/resolve.c
+++ b/gcc/fortran/resolve.c
@@ -16169,6 +16169,13 @@ check_data_variable (gfc_data_variable *var, locus *where)
 	      return false;
 	    }
 	}
+
+      if (ref->type == REF_COMPONENT && ref->u.c.component->attr.allocatable)
+	{
+	  gfc_error ("DATA element %qs at %L cannot have the ALLOCATABLE "
+		     "attribute", ref->u.c.component->name, &e->where);
+	  return false;
+	}
     }
 
   if (e->rank == 0 || has_pointer)
diff --git a/gcc/testsuite/gfortran.dg/pr98284.f90 b/gcc/testsuite/gfortran.dg/pr98284.f90
new file mode 100644
index 0000000..aa4b95c
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/pr98284.f90
@@ -0,0 +1,12 @@
+! { dg-do compile }
+! PR fortran/98284 - ICE in get_array_index
+
+program p
+  implicit none
+  type t
+     integer, allocatable :: h(:)
+  end type t
+  type(t) :: u
+  integer :: i
+  data (u% h(i),i=1,8) /8*1/ ! { dg-error "cannot have the ALLOCATABLE attribute" }
+end
-- 
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