re PR fortran/46411 (MOVE_ALLOC wrongly rejected as impure)

2010-11-10  Tobias Burnus  <burnus@net-b.de>

        PR fortran/46411
        * intrinsic.c (gfc_intrinsic_sub_interface): Check for attr.pure
        and not for attr.elemental.
        * intrinsic.texi (move_alloc): Document as being pure.

2010-11-10  Tobias Burnus  <burnus@net-b.de>

        PR fortran/46411
        * gfortran.dg/intrinsic_7.f90: New.

From-SVN: r166550

gcc/fortran/ChangeLog

+2010-11-10  Tobias Burnus  <burnus@net-b.de>
+
+	PR fortran/46411
+	* intrinsic.c (gfc_intrinsic_sub_interface): Check for attr.pure
+	and not for attr.elemental.
+	* intrinsic.texi (move_alloc): Document as being pure.
+
 2010-11-10  Tobias Burnus <burnus@net-b.de>
 
 	PR fortran/46244

gcc/fortran/intrinsic.c

@@ -4193,7 +4193,7 @@ gfc_intrinsic_sub_interface (gfc_code *c, int error_flag)
       c->resolved_sym->attr.elemental = isym->elemental;
     }
 
-  if (gfc_pure (NULL) && !isym->elemental)
+  if (gfc_pure (NULL) && !isym->pure)
     {
       gfc_error ("Subroutine call to intrinsic '%s' at %L is not PURE", name,
 		 &c->loc);

gcc/fortran/intrinsic.texi

@@ -8977,7 +8977,7 @@ end program
 Fortran 2003 and later
 
 @item @emph{Class}:
-Subroutine
+Pure subroutine
 
 @item @emph{Syntax}:
 @code{CALL MOVE_ALLOC(FROM, TO)}

gcc/testsuite/ChangeLog

+2010-11-10  Tobias Burnus  <burnus@net-b.de>
+
+	PR fortran/46411
+	* gfortran.dg/intrinsic_7.f90: New.
+
 2010-11-10  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 
 	* g++.dg/abi/rtti3.C: Scan for .weakext on alpha*-dec-osf*.

gcc/testsuite/gfortran.dg/intrinsic_7.f90

+! { dg-do compile }
+!
+! PR fortran/46411
+!
+! MOVE_ALLOC and other non-elemental but pure
+! procedures where regarded as impure.
+!
+
+pure subroutine test()
+  integer, allocatable :: a, b
+  allocate(a,b)
+  call move_alloc(a,b)
+end subroutine test