re PR fortran/78573 ([OOP] ICE in resolve_component, at fortran/resolve.c:13405)

2016-11-30  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/78573
	* decl.c (build_struct): On error, return directly and do not build
	class symbol.

2016-11-30  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/78573
	* gfortran.dg/class_61.f90: New test case.

From-SVN: r242996

gcc/fortran/ChangeLog

+2016-11-30  Janus Weil  <janus@gcc.gnu.org>
+
+	PR fortran/78573
+	* decl.c (build_struct): On error, return directly and do not build
+	class symbol.
+
 2016-11-29  Tobias Burnus  <burnus@net-b.de>
 
 	PR fortran/58175

gcc/fortran/decl.c

@@ -1850,7 +1850,6 @@ build_struct (const char *name, gfc_charlen *cl, gfc_expr **init,
 {
   gfc_state_data *s;
   gfc_component *c;
-  bool t = true;
 
   /* F03:C438/C439. If the current symbol is of the same derived type that we're
      constructing, it must have the pointer attribute.  */
@@ -1952,7 +1951,7 @@ build_struct (const char *name, gfc_charlen *cl, gfc_expr **init,
 	{
 	  gfc_error ("Pointer array component of structure at %C must have a "
 		     "deferred shape");
-	  t = false;
+	  return false;
 	}
     }
   else if (c->attr.allocatable)
@@ -1961,7 +1960,7 @@ build_struct (const char *name, gfc_charlen *cl, gfc_expr **init,
 	{
 	  gfc_error ("Allocatable component of structure at %C must have a "
 		     "deferred shape");
-	  t = false;
+	  return false;
 	}
     }
   else
@@ -1970,20 +1969,15 @@ build_struct (const char *name, gfc_charlen *cl, gfc_expr **init,
 	{
 	  gfc_error ("Array component of structure at %C must have an "
 		     "explicit shape");
-	  t = false;
+	  return false;
 	}
     }
 
 scalar:
   if (c->ts.type == BT_CLASS)
-    {
-      bool t2 = gfc_build_class_symbol (&c->ts, &c->attr, &c->as);
+    return gfc_build_class_symbol (&c->ts, &c->attr, &c->as);
 
-      if (t)
-	t = t2;
-    }
-
-  return t;
+  return true;
 }
 
 

gcc/testsuite/ChangeLog

+2016-11-30  Janus Weil  <janus@gcc.gnu.org>
+
+	PR fortran/78573
+	* gfortran.dg/class_61.f90: New test case.
+
 2016-11-29  David Malcolm  <dmalcolm@redhat.com>
 
 	PR preprocessor/78569

gcc/testsuite/gfortran.dg/class_61.f90

+! { dg-do compile }
+!
+! PR 78573: [7 Regression] [OOP] ICE in resolve_component, at fortran/resolve.c:13405
+!
+! Contributed by Gerhard Steinmetz <gerhard.steinmetz.fortran@t-online.de>
+
+program p
+  type t1
+    class(t2), pointer :: q(2)  ! { dg-error "must have a deferred shape" }
+  end type
+end