2016-08-14 Chung-Lin Tang <cltang@codesourcery.com>

	PR fortran/70598

	gcc/fortran/
	* openmp.c (resolve_omp_clauses): Adjust use_device clause
	handling to only allow pointers and arrays.

	gcc/testsuite/
	* gfortran.dg/goacc/host_data-tree.f95: Adjust to use pointers
	in use_device clause.
	* gfortran.dg/goacc/uninit-use-device-clause.f95: Likewise.
	* gfortran.dg/goacc/list.f95: Adjust to catch
	"neither a POINTER nor an array" error messages.

	libgomp/
	* testsuite/libgomp.oacc-fortran/host_data-1.f90: New test.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@239457 138bc75d-0d04-0410-961f-82ee72b054a4

6 files changed, 44 insertions, 18 deletions

diff --git a/gcc/fortran/ChangeLog b/gcc/fortran/ChangeLog
index 95cd0753925..e6336ba52d7 100644
--- a/gcc/fortran/ChangeLog
+++ b/gcc/fortran/ChangeLog
@@ -1,3 +1,9 @@
+2016-08-14  Chung-Lin Tang  <cltang@codesourcery.com>
+
+	PR fortran/70598
+	* openmp.c (resolve_omp_clauses): Adjust use_device clause
+	handling to only allow pointers and arrays.
+
 2016-08-12  Marek Polacek  <polacek@redhat.com>
 
 	PR c/7652
diff --git a/gcc/fortran/openmp.c b/gcc/fortran/openmp.c
index 2fed4918907..f50e6e83d91 100644
--- a/gcc/fortran/openmp.c
+++ b/gcc/fortran/openmp.c
@@ -3758,17 +3758,24 @@ resolve_omp_clauses (gfc_code *code, gfc_omp_clauses *omp_clauses,
 			      && CLASS_DATA (n->sym)->attr.allocatable))
 			gfc_error ("ALLOCATABLE object %qs in %s clause at %L",
 				   n->sym->name, name, &n->where);
-		      if (n->sym->attr.pointer
-			  || (n->sym->ts.type == BT_CLASS && CLASS_DATA (n->sym)
-			      && CLASS_DATA (n->sym)->attr.class_pointer))
-			gfc_error ("POINTER object %qs in %s clause at %L",
-				   n->sym->name, name, &n->where);
+		      if (n->sym->ts.type == BT_CLASS
+			  && CLASS_DATA (n->sym)
+			  && CLASS_DATA (n->sym)->attr.class_pointer)
+			gfc_error ("POINTER object %qs of polymorphic type in "
+				   "%s clause at %L", n->sym->name, name,
+				   &n->where);
 		      if (n->sym->attr.cray_pointer)
 			gfc_error ("Cray pointer object %qs in %s clause at %L",
 				   n->sym->name, name, &n->where);
-		      if (n->sym->attr.cray_pointee)
+		      else if (n->sym->attr.cray_pointee)
 			gfc_error ("Cray pointee object %qs in %s clause at %L",
 				   n->sym->name, name, &n->where);
+		      else if (n->sym->attr.flavor == FL_VARIABLE
+			       && !n->sym->as
+			       && !n->sym->attr.pointer)
+			gfc_error ("%s clause variable %qs at %L is neither "
+				   "a POINTER nor an array", name,
+				   n->sym->name, &n->where);
 		      /* FALLTHRU */
 		  case OMP_LIST_DEVICE_RESIDENT:
 		    check_symbol_not_pointer (n->sym, n->where, name);
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 4665ac77211..ee1f86f2ece 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,12 @@
+2016-08-14  Chung-Lin Tang  <cltang@codesourcery.com>
+
+	PR fortran/70598
+	* gfortran.dg/goacc/host_data-tree.f95: Adjust to use pointers
+	in use_device clause.
+	* gfortran.dg/goacc/uninit-use-device-clause.f95: Likewise.
+	* gfortran.dg/goacc/list.f95: Adjust to catch
+	"neither a POINTER nor an array" error messages.
+
 2016-08-14  Uros Bizjak  <ubizjak@gmail.com>
 
 	PR target/76342
diff --git a/gcc/testsuite/gfortran.dg/goacc/host_data-tree.f95 b/gcc/testsuite/gfortran.dg/goacc/host_data-tree.f95
index 4a11b9dcbcb..d44ca587051 100644
--- a/gcc/testsuite/gfortran.dg/goacc/host_data-tree.f95
+++ b/gcc/testsuite/gfortran.dg/goacc/host_data-tree.f95
@@ -3,9 +3,9 @@
 
 program test
   implicit none
-  integer :: i = 1
+  integer, pointer :: p
 
-  !$acc host_data use_device(i)
+  !$acc host_data use_device(p)
   !$acc end host_data
 end program test
-! { dg-final { scan-tree-dump-times "pragma acc host_data use_device_ptr\\(i\\)" 1 "original" } }
+! { dg-final { scan-tree-dump-times "pragma acc host_data use_device_ptr\\(p\\)" 1 "original" } }
diff --git a/gcc/testsuite/gfortran.dg/goacc/list.f95 b/gcc/testsuite/gfortran.dg/goacc/list.f95
index a8006bcdd84..87c84085b13 100644
--- a/gcc/testsuite/gfortran.dg/goacc/list.f95
+++ b/gcc/testsuite/gfortran.dg/goacc/list.f95
@@ -76,19 +76,19 @@ program test
   !$acc parallel private (i) firstprivate (i) ! { dg-error "present on multiple clauses" }
   !$acc end parallel
 
-  !$acc host_data use_device(i)
+  !$acc host_data use_device(i) ! { dg-error "neither a POINTER nor an array" }
   !$acc end host_data
 
-  !$acc host_data use_device(c, d)
+  !$acc host_data use_device(c, d) ! { dg-error "neither a POINTER nor an array" }
   !$acc end host_data
 
   !$acc host_data use_device(a)
   !$acc end host_data
 
-  !$acc host_data use_device(i, j, k, l, a)
+  !$acc host_data use_device(i, j, k, l, a) ! { dg-error "neither a POINTER nor an array" }
   !$acc end host_data  
 
-  !$acc host_data use_device (i) use_device (j)
+  !$acc host_data use_device (i) use_device (j) ! { dg-error "neither a POINTER nor an array" }
   !$acc end host_data
 
   !$acc host_data use_device ! { dg-error "Unclassifiable OpenACC directive" }
@@ -99,13 +99,17 @@ program test
 
   !$acc host_data use_device(10) ! { dg-error "Syntax error" }
 
-  !$acc host_data use_device(/b/, /b/) ! { dg-error "present on multiple clauses" }
+  !$acc host_data use_device(/b/, /b/)
   !$acc end host_data
+  ! { dg-error "neither a POINTER nor an array" "" { target *-*-* } 102 }
+  ! { dg-error "present on multiple clauses" "" { target *-*-* } 102 }
 
-  !$acc host_data use_device(i, j, i) ! { dg-error "present on multiple clauses" }
+  !$acc host_data use_device(i, j, i)
   !$acc end host_data
+  ! { dg-error "neither a POINTER nor an array" "" { target *-*-* } 107 }
+  ! { dg-error "present on multiple clauses" "" { target *-*-* } 107 }
 
-  !$acc host_data use_device(p1) ! { dg-error "POINTER" }
+  !$acc host_data use_device(p1)
   !$acc end host_data
 
 end program test
diff --git a/gcc/testsuite/gfortran.dg/goacc/uninit-use-device-clause.f95 b/gcc/testsuite/gfortran.dg/goacc/uninit-use-device-clause.f95
index 873eea70a76..48d08a5a55d 100644
--- a/gcc/testsuite/gfortran.dg/goacc/uninit-use-device-clause.f95
+++ b/gcc/testsuite/gfortran.dg/goacc/uninit-use-device-clause.f95
@@ -2,9 +2,9 @@
 ! { dg-additional-options "-Wuninitialized" }
 
 subroutine test
-  integer :: i
+  integer, pointer :: p
 
-  !$acc host_data use_device(i) ! { dg-warning "is used uninitialized in this function" }
+  !$acc host_data use_device(p) ! { dg-warning "is used uninitialized in this function" }
   !$acc end host_data
 end subroutine test