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[openacc] acc loop updates in fortran
- From: Cesar Philippidis <cesar at codesourcery dot com>
- To: "gcc-patches at gcc dot gnu dot org" <gcc-patches at gcc dot gnu dot org>, Jakub Jelinek <jakub at redhat dot com>
- Date: Tue, 3 Nov 2015 19:06:50 -0800
- Subject: [openacc] acc loop updates in fortran
- Authentication-results: sourceware.org; auth=none
This patch updates the fortran front end so that it supports the acc
loop clauses in a similar manner to both the c and c++ front ends in
addition to addressing a couple of other loose ends. Specifically:
* the tile clause now supports a list of arguments like c and c++
* made the default clause parser aware that openacc only supports
'none'
* error when no data clauses are used in an update construct
* corrects the way that reduction errors are detected for duplicate
variables
* add support for the gang static argument and the auto clause
Besides for that, a number of tests have either been updated or added.
Is this OK for trunk?
Cesar
2015-11-03 Cesar Philippidis <cesar@codesourcery.com>
Thomas Schwinge <thomas@codesourcery.com>
gcc/fortran/
* openmp.c (gfc_match_omp_clauses): Update support for the tile
and default clauses in OpenACC.
(gfc_match_oacc_update): Error when data clauses are supplied.
(oacc_compatible_clauses): Delete.
(resolve_omp_clauses): Give special care for OpenACC reductions.
Also update error reporting for the tile clause.
(resolve_oacc_loop_blocks): Update error reporting for the tile clause.
* trans-openmp.c (gfc_trans_omp_clauses): Update OMP_CLAUSE_SEQ. Add
OMP_CLAUSE_{AUTO,TILE} and add support the the gang static argument.
(gfc_trans_oacc_combined_directive): Update the list of clauses which
are split to acc loops.
2015-11-03 Cesar Philippidis <cesar@codesourcery.com>
Tom de Vries <tom@codesourcery.com>
Nathan Sidwell <nathan@codesourcery.com>
Thomas Schwinge <thomas@codesourcery.com>
gcc/testsuite/
* gfortran.dg/goacc/combined-directives.f90: New test.
* gfortran.dg/goacc/default.f95: New test.
* gfortran.dg/goacc/default_none.f95: New test.
* gfortran.dg/goacc/firstprivate-1.f95: New test.
* gfortran.dg/goacc/gang-static.f95: New test.
* gfortran.dg/goacc/kernels-loop-inner.f95: New test.
* gfortran.dg/goacc/kernels-loops-adjacent.f95: New test.
* gfortran.dg/goacc/list.f95: Update test.
* gfortran.dg/goacc/loop-2.f95: Likewise.
* gfortran.dg/goacc/loop-4.f95: New test.
* gfortran.dg/goacc/loop-5.f95: New test.
* gfortran.dg/goacc/loop-6.f95: New test.
* gfortran.dg/goacc/loop-tree-1.f90: Update test.
* gfortran.dg/goacc/modules.f95: New test.
* gfortran.dg/goacc/multi-clause.f90: New test.
* gfortran.dg/goacc/parallel-tree.f95: Update test.
* gfortran.dg/goacc/update.f95: New test.
diff --git a/gcc/fortran/openmp.c b/gcc/fortran/openmp.c
index 929a739..0a92541 100644
--- a/gcc/fortran/openmp.c
+++ b/gcc/fortran/openmp.c
@@ -703,6 +703,7 @@ gfc_match_omp_clauses (gfc_omp_clauses **cp, uint64_t mask,
OMP_MAP_FORCE_FROM))
continue;
if ((mask & OMP_CLAUSE_TILE)
+ && !c->tile_list
&& match_oacc_expr_list ("tile (", &c->tile_list, true) == MATCH_YES)
continue;
if ((mask & OMP_CLAUSE_SEQ) && !c->seq
@@ -856,13 +857,14 @@ gfc_match_omp_clauses (gfc_omp_clauses **cp, uint64_t mask,
if ((mask & OMP_CLAUSE_DEFAULT)
&& c->default_sharing == OMP_DEFAULT_UNKNOWN)
{
- if (gfc_match ("default ( shared )") == MATCH_YES)
+ if (!openacc && gfc_match ("default ( shared )") == MATCH_YES)
c->default_sharing = OMP_DEFAULT_SHARED;
- else if (gfc_match ("default ( private )") == MATCH_YES)
+ else if (!openacc && gfc_match ("default ( private )") == MATCH_YES)
c->default_sharing = OMP_DEFAULT_PRIVATE;
else if (gfc_match ("default ( none )") == MATCH_YES)
c->default_sharing = OMP_DEFAULT_NONE;
- else if (gfc_match ("default ( firstprivate )") == MATCH_YES)
+ else if (!openacc
+ && gfc_match ("default ( firstprivate )") == MATCH_YES)
c->default_sharing = OMP_DEFAULT_FIRSTPRIVATE;
if (c->default_sharing != OMP_DEFAULT_UNKNOWN)
continue;
@@ -1304,10 +1306,19 @@ match
gfc_match_oacc_update (void)
{
gfc_omp_clauses *c;
+ locus here = gfc_current_locus;
+
if (gfc_match_omp_clauses (&c, OACC_UPDATE_CLAUSES, false, false, true)
!= MATCH_YES)
return MATCH_ERROR;
+ if (!c->lists[OMP_LIST_MAP])
+ {
+ gfc_error ("%<acc update%> must contain at least one "
+ "%<device%> or %<host/self%> clause at %L", &here);
+ return MATCH_ERROR;
+ }
+
new_st.op = EXEC_OACC_UPDATE;
new_st.ext.omp_clauses = c;
return MATCH_YES;
@@ -2846,30 +2857,6 @@ resolve_omp_udr_clause (gfc_omp_namelist *n, gfc_namespace *ns,
return copy;
}
-/* Returns true if clause in list 'list' is compatible with any of
- of the clauses in lists [0..list-1]. E.g., a reduction variable may
- appear in both reduction and private clauses, so this function
- will return true in this case. */
-
-static bool
-oacc_compatible_clauses (gfc_omp_clauses *clauses, int list,
- gfc_symbol *sym, bool openacc)
-{
- gfc_omp_namelist *n;
-
- if (!openacc)
- return false;
-
- if (list != OMP_LIST_REDUCTION)
- return false;
-
- for (n = clauses->lists[OMP_LIST_FIRST]; n; n = n->next)
- if (n->sym == sym)
- return true;
-
- return false;
-}
-
/* OpenMP directive resolving routines. */
static void
@@ -2975,11 +2962,11 @@ resolve_omp_clauses (gfc_code *code, gfc_omp_clauses *omp_clauses,
&& list != OMP_LIST_DEPEND
&& (list != OMP_LIST_MAP || openacc)
&& list != OMP_LIST_FROM
- && list != OMP_LIST_TO)
+ && list != OMP_LIST_TO
+ && (list != OMP_LIST_REDUCTION || !openacc))
for (n = omp_clauses->lists[list]; n; n = n->next)
{
- if (n->sym->mark && !oacc_compatible_clauses (omp_clauses, list,
- n->sym, openacc))
+ if (n->sym->mark)
gfc_error ("Symbol %qs present on multiple clauses at %L",
n->sym->name, &n->where);
else
@@ -3028,6 +3015,22 @@ resolve_omp_clauses (gfc_code *code, gfc_omp_clauses *omp_clauses,
n->sym->mark = 1;
}
+ /* OpenACC reductions. */
+ if (openacc)
+ {
+ for (n = omp_clauses->lists[OMP_LIST_REDUCTION]; n; n = n->next)
+ n->sym->mark = 0;
+
+ for (n = omp_clauses->lists[OMP_LIST_REDUCTION]; n; n = n->next)
+ {
+ if (n->sym->mark)
+ gfc_error ("Symbol %qs present on multiple clauses at %L",
+ n->sym->name, &n->where);
+ else
+ n->sym->mark = 1;
+ }
+ }
+
for (n = omp_clauses->lists[OMP_LIST_TO]; n; n = n->next)
n->sym->mark = 0;
for (n = omp_clauses->lists[OMP_LIST_FROM]; n; n = n->next)
@@ -4528,22 +4531,8 @@ resolve_oacc_loop_blocks (gfc_code *code)
if (code->ext.omp_clauses->vector)
gfc_error ("Clause AUTO conflicts with VECTOR at %L", &code->loc);
}
- if (!code->ext.omp_clauses->tile_list)
- {
- if (code->ext.omp_clauses->gang)
- {
- if (code->ext.omp_clauses->worker)
- gfc_error ("Clause GANG conflicts with WORKER at %L", &code->loc);
- if (code->ext.omp_clauses->vector)
- gfc_error ("Clause GANG conflicts with VECTOR at %L", &code->loc);
- }
- if (code->ext.omp_clauses->worker)
- if (code->ext.omp_clauses->vector)
- gfc_error ("Clause WORKER conflicts with VECTOR at %L", &code->loc);
- }
- else if (code->ext.omp_clauses->gang
- && code->ext.omp_clauses->worker
- && code->ext.omp_clauses->vector)
+ if (code->ext.omp_clauses->tile_list && code->ext.omp_clauses->gang
+ && code->ext.omp_clauses->worker && code->ext.omp_clauses->vector)
gfc_error ("Tiled loop cannot be parallelized across gangs, workers and "
"vectors at the same time at %L", &code->loc);
@@ -4564,10 +4553,21 @@ resolve_oacc_loop_blocks (gfc_code *code)
{
num++;
if (el->expr == NULL)
- continue;
- resolve_oacc_positive_int_expr (el->expr, "TILE");
- if (el->expr->expr_type != EXPR_CONSTANT)
- gfc_error ("TILE requires constant expression at %L", &code->loc);
+ {
+ /* NULL expressions are used to represent '*' arguments.
+ Convert those to a -1 expressions. */
+ el->expr = gfc_get_constant_expr (BT_INTEGER,
+ gfc_default_integer_kind,
+ &code->loc);
+ mpz_set_si (el->expr->value.integer, -1);
+ }
+ else
+ {
+ resolve_oacc_positive_int_expr (el->expr, "TILE");
+ if (el->expr->expr_type != EXPR_CONSTANT)
+ gfc_error ("TILE requires constant expression at %L",
+ &code->loc);
+ }
}
resolve_oacc_nested_loops (code, code->block->next, num, "tiled");
}
diff --git a/gcc/fortran/trans-openmp.c b/gcc/fortran/trans-openmp.c
index 5f4c382..bf8cfa1 100644
--- a/gcc/fortran/trans-openmp.c
+++ b/gcc/fortran/trans-openmp.c
@@ -2534,8 +2534,12 @@ gfc_trans_omp_clauses (stmtblock_t *block, gfc_omp_clauses *clauses,
}
if (clauses->seq)
{
- c = build_omp_clause (where.lb->location, OMP_CLAUSE_ORDERED);
- OMP_CLAUSE_ORDERED_EXPR (c) = NULL_TREE;
+ c = build_omp_clause (where.lb->location, OMP_CLAUSE_SEQ);
+ omp_clauses = gfc_trans_add_clause (c, omp_clauses);
+ }
+ if (clauses->par_auto)
+ {
+ c = build_omp_clause (where.lb->location, OMP_CLAUSE_AUTO);
omp_clauses = gfc_trans_add_clause (c, omp_clauses);
}
if (clauses->independent)
@@ -2579,6 +2583,21 @@ gfc_trans_omp_clauses (stmtblock_t *block, gfc_omp_clauses *clauses,
OMP_CLAUSE_VECTOR_LENGTH_EXPR (c) = vector_length_var;
omp_clauses = gfc_trans_add_clause (c, omp_clauses);
}
+ if (clauses->tile_list)
+ {
+ vec<tree, va_gc> *tvec;
+ gfc_expr_list *el;
+
+ vec_alloc (tvec, 4);
+
+ for (el = clauses->tile_list; el; el = el->next)
+ vec_safe_push (tvec, gfc_convert_expr_to_tree (block, el->expr));
+
+ c = build_omp_clause (where.lb->location, OMP_CLAUSE_TILE);
+ OMP_CLAUSE_TILE_LIST (c) = build_tree_list_vec (tvec);
+ omp_clauses = gfc_trans_add_clause (c, omp_clauses);
+ tvec->truncate (0);
+ }
if (clauses->vector)
{
if (clauses->vector_expr)
@@ -2618,7 +2637,17 @@ gfc_trans_omp_clauses (stmtblock_t *block, gfc_omp_clauses *clauses,
tree gang_var
= gfc_convert_expr_to_tree (block, clauses->gang_expr);
c = build_omp_clause (where.lb->location, OMP_CLAUSE_GANG);
- OMP_CLAUSE_GANG_EXPR (c) = gang_var;
+ if (clauses->gang_static)
+ OMP_CLAUSE_GANG_STATIC_EXPR (c) = gang_var;
+ else
+ OMP_CLAUSE_GANG_EXPR (c) = gang_var;
+ omp_clauses = gfc_trans_add_clause (c, omp_clauses);
+ }
+ else if (clauses->gang_static)
+ {
+ /* This corresponds to gang (static: *). */
+ c = build_omp_clause (where.lb->location, OMP_CLAUSE_GANG);
+ OMP_CLAUSE_GANG_STATIC_EXPR (c) = integer_minus_one_node;
omp_clauses = gfc_trans_add_clause (c, omp_clauses);
}
else
@@ -3449,16 +3478,28 @@ gfc_trans_oacc_combined_directive (gfc_code *code)
sizeof (construct_clauses));
loop_clauses.collapse = construct_clauses.collapse;
loop_clauses.gang = construct_clauses.gang;
+ loop_clauses.gang_expr = construct_clauses.gang_expr;
+ loop_clauses.gang_static = construct_clauses.gang_static;
loop_clauses.vector = construct_clauses.vector;
+ loop_clauses.vector_expr = construct_clauses.vector_expr;
loop_clauses.worker = construct_clauses.worker;
+ loop_clauses.worker_expr = construct_clauses.worker_expr;
loop_clauses.seq = construct_clauses.seq;
+ loop_clauses.par_auto = construct_clauses.par_auto;
loop_clauses.independent = construct_clauses.independent;
- construct_clauses.collapse = 0;
+ loop_clauses.tile_list = construct_clauses.tile_list;
construct_clauses.gang = false;
+ construct_clauses.gang_expr = NULL;
+ construct_clauses.gang_static = NULL;
construct_clauses.vector = false;
+ construct_clauses.vector_expr = NULL;
construct_clauses.worker = false;
+ construct_clauses.worker_expr = NULL;
construct_clauses.seq = false;
+ construct_clauses.par_auto = false;
+ construct_clauses.independent = false;
construct_clauses.independent = false;
+ construct_clauses.tile_list = NULL;
oacc_clauses = gfc_trans_omp_clauses (&block, &construct_clauses,
code->loc);
}
diff --git a/gcc/testsuite/gfortran.dg/goacc/combined-directives.f90 b/gcc/testsuite/gfortran.dg/goacc/combined-directives.f90
new file mode 100644
index 0000000..620dfd2
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/goacc/combined-directives.f90
@@ -0,0 +1,152 @@
+! Exercise combined OpenACC directives.
+
+! { dg-do compile }
+! { dg-options "-fopenacc -fdump-tree-gimple" }
+
+! { dg-prune-output "sorry, unimplemented" }
+
+subroutine test
+ implicit none
+ integer a(100), i, j, z
+
+ ! PARALLEL
+
+ !$acc parallel loop collapse (2)
+ do i = 1, 100
+ do j = 1, 10
+ end do
+ end do
+ !$acc end parallel loop
+
+ !$acc parallel loop gang
+ do i = 1, 100
+ end do
+ !$acc end parallel loop
+
+ !$acc parallel loop worker
+ do i = 1, 100
+ do j = 1, 10
+ end do
+ end do
+ !$acc end parallel loop
+
+ !$acc parallel loop vector
+ do i = 1, 100
+ do j = 1, 10
+ end do
+ end do
+ !$acc end parallel loop
+
+ !$acc parallel loop seq
+ do i = 1, 100
+ do j = 1, 10
+ end do
+ end do
+ !$acc end parallel loop
+
+ !$acc parallel loop auto
+ do i = 1, 100
+ do j = 1, 10
+ end do
+ end do
+ !$acc end parallel loop
+
+ !$acc parallel loop tile (2, 3)
+ do i = 1, 100
+ do j = 1, 10
+ end do
+ end do
+ !$acc end parallel loop
+
+ !$acc parallel loop independent
+ do i = 1, 100
+ end do
+ !$acc end parallel loop
+
+ !$acc parallel loop private (z)
+ do i = 1, 100
+ z = 0
+ end do
+ !$acc end parallel loop
+
+ !$acc parallel loop reduction (+:z) copy (z)
+ do i = 1, 100
+ end do
+ !$acc end parallel loop
+
+ ! KERNELS
+
+ !$acc kernels loop collapse (2)
+ do i = 1, 100
+ do j = 1, 10
+ end do
+ end do
+ !$acc end kernels loop
+
+ !$acc kernels loop gang
+ do i = 1, 100
+ end do
+ !$acc end kernels loop
+
+ !$acc kernels loop worker
+ do i = 1, 100
+ do j = 1, 10
+ end do
+ end do
+ !$acc end kernels loop
+
+ !$acc kernels loop vector
+ do i = 1, 100
+ do j = 1, 10
+ end do
+ end do
+ !$acc end kernels loop
+
+ !$acc kernels loop seq
+ do i = 1, 100
+ do j = 1, 10
+ end do
+ end do
+ !$acc end kernels loop
+
+ !$acc kernels loop auto
+ do i = 1, 100
+ do j = 1, 10
+ end do
+ end do
+ !$acc end kernels loop
+
+ !$acc kernels loop tile (2, 3)
+ do i = 1, 100
+ do j = 1, 10
+ end do
+ end do
+ !$acc end kernels loop
+
+ !$acc kernels loop independent
+ do i = 1, 100
+ end do
+ !$acc end kernels loop
+
+ !$acc kernels loop private (z)
+ do i = 1, 100
+ z = 0
+ end do
+ !$acc end kernels loop
+
+ !$acc kernels loop reduction (+:z) copy (z)
+ do i = 1, 100
+ end do
+ !$acc end kernels loop
+end subroutine test
+
+! { dg-final { scan-tree-dump-times "acc loop collapse.2. private.j. private.i" 2 "gimple" } }
+! { dg-final { scan-tree-dump-times "acc loop gang" 2 "gimple" } }
+! { dg-final { scan-tree-dump-times "acc loop worker" 2 "gimple" } }
+! { dg-final { scan-tree-dump-times "acc loop vector" 2 "gimple" } }
+! { dg-final { scan-tree-dump-times "acc loop seq" 2 "gimple" } }
+! { dg-final { scan-tree-dump-times "acc loop auto" 2 "gimple" } }
+! { dg-final { scan-tree-dump-times "acc loop tile.2, 3" 2 "gimple" } }
+! { dg-final { scan-tree-dump-times "acc loop independent private.i" 2 "gimple" } }
+! { dg-final { scan-tree-dump-times "private.z" 2 "gimple" } }
+! { dg-final { scan-tree-dump-times "map.force_tofrom:z .len: 4.. reduction..:z." 2 "gimple" } }
diff --git a/gcc/testsuite/gfortran.dg/goacc/default.f95 b/gcc/testsuite/gfortran.dg/goacc/default.f95
new file mode 100644
index 0000000..c1fc52e
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/goacc/default.f95
@@ -0,0 +1,17 @@
+! { dg-do compile }
+
+program tile
+ integer i, j, a
+
+ !$acc parallel default (shared) ! { dg-error "Unclassifiable OpenACC directive" }
+ !$acc end parallel ! { dg-error "Unexpected" }
+
+ !$acc parallel default (private) ! { dg-error "Unclassifiable OpenACC directive" }
+ !$acc end parallel ! { dg-error "Unexpected" }
+
+ !$acc parallel default (none)
+ !$acc end parallel
+
+ !$acc parallel default (firstprivate) ! { dg-error "Unclassifiable OpenACC directive" }
+ !$acc end parallel ! { dg-error "Unexpected" }
+end program tile
diff --git a/gcc/testsuite/gfortran.dg/goacc/default_none.f95 b/gcc/testsuite/gfortran.dg/goacc/default_none.f95
new file mode 100644
index 0000000..5ce66ae
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/goacc/default_none.f95
@@ -0,0 +1,59 @@
+! Ensure that the internal array variables, offset, lbound, etc., don't
+! trigger errors with default(none).
+
+! { dg-do compile }
+
+program main
+ implicit none
+ integer i
+ integer,parameter :: n = 100
+ integer,allocatable :: a1(:), a2(:,:)
+
+ allocate (a1 (n))
+ allocate (a2 (-n:n,-n:n))
+ a1 (:) = -1
+
+ !$acc parallel loop default(none) copy (a1(1:n))
+ do i = 1,n
+ a1(i) = i
+ end do
+ !$acc end parallel loop
+
+ call foo (a1)
+ call bar (a1, n)
+ call foobar (a2,n)
+
+contains
+
+ subroutine foo (da1)
+ integer :: da1(n)
+
+ !$acc parallel loop default(none) copy (da1(1:n))
+ do i = 1,n
+ da1(i) = i*2
+ end do
+ !$acc end parallel loop
+ end subroutine foo
+end program main
+
+subroutine bar (da2,n)
+ integer :: n, da2(n)
+ integer i
+
+ !$acc parallel loop default(none) copy (da2(1:n)) firstprivate(n)
+ do i = 1,n
+ da2(i) = i*3
+ end do
+ !$acc end parallel loop
+end subroutine bar
+
+subroutine foobar (da3,n)
+ integer :: n, da3(-n:n,-n:n)
+ integer i
+
+ !$acc parallel loop default(none) copy (da3(-n:n,-n:n)) firstprivate(n)
+ do i = 1,n
+ da3(i,0) = i*3
+ end do
+ !$acc end parallel loop
+end subroutine foobar
diff --git a/gcc/testsuite/gfortran.dg/goacc/firstprivate-1.f95 b/gcc/testsuite/gfortran.dg/goacc/firstprivate-1.f95
new file mode 100644
index 0000000..fb92dee
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/goacc/firstprivate-1.f95
@@ -0,0 +1,11 @@
+! { dg-do compile }
+
+program test
+ integer a, b(100)
+
+ !$acc parallel firstprivate (a, b)
+ !$acc end parallel
+
+ !$acc parallel firstprivate (b(10:20)) ! { dg-error "Syntax error in OpenMP variable list" }
+ !$acc end parallel ! { dg-error "Unexpected !\\\$ACC END PARALLEL statement" }
+end program test
diff --git a/gcc/testsuite/gfortran.dg/goacc/gang-static.f95 b/gcc/testsuite/gfortran.dg/goacc/gang-static.f95
new file mode 100644
index 0000000..4e46cf3
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/goacc/gang-static.f95
@@ -0,0 +1,68 @@
+! { dg-do compile }
+! { dg-additional-options "-fdump-tree-omplower" }
+
+program main
+ integer, parameter :: n = 100
+ integer i, a(n), b(n)
+
+ do i = 1, n
+ b(i) = i
+ end do
+
+ !$acc parallel loop gang (static:*) num_gangs (10)
+ do i = 1, n
+ a(i) = b(i) + 0
+ end do
+ !$acc end parallel loop
+
+ call test (a, b, 0, n)
+
+ !$acc parallel loop gang (static:1) num_gangs (10)
+ do i = 1, n
+ a(i) = b(i) + 1
+ end do
+ !$acc end parallel loop
+
+ call test (a, b, 1, n)
+
+ !$acc parallel loop gang (static:2) num_gangs (10)
+ do i = 1, n
+ a(i) = b(i) + 2
+ end do
+ !$acc end parallel loop
+
+ call test (a, b, 2, n)
+
+ !$acc parallel loop gang (static:5) num_gangs (10)
+ do i = 1, n
+ a(i) = b(i) + 5
+ end do
+ !$acc end parallel loop
+
+ call test (a, b, 5, n)
+
+ !$acc parallel loop gang (static:20) num_gangs (10)
+ do i = 1, n
+ a(i) = b(i) + 20
+ end do
+ !$acc end parallel loop
+
+ call test (a, b, 20, n)
+
+end program main
+
+subroutine test (a, b, sarg, n)
+ integer n
+ integer a (n), b(n), sarg
+ integer i
+
+ do i = 1, n
+ if (a(i) .ne. b(i) + sarg) call abort ()
+ end do
+end subroutine test
+
+! { dg-final { scan-tree-dump-times "gang\\(static:\\\*\\)" 1 "omplower" } }
+! { dg-final { scan-tree-dump-times "gang\\(static:1\\)" 1 "omplower" } }
+! { dg-final { scan-tree-dump-times "gang\\(static:2\\)" 1 "omplower" } }
+! { dg-final { scan-tree-dump-times "gang\\(static:5\\)" 1 "omplower" } }
+! { dg-final { scan-tree-dump-times "gang\\(static:20\\)" 1 "omplower" } }
diff --git a/gcc/testsuite/gfortran.dg/goacc/kernels-loop-inner.f95 b/gcc/testsuite/gfortran.dg/goacc/kernels-loop-inner.f95
new file mode 100644
index 0000000..4db3a50
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/goacc/kernels-loop-inner.f95
@@ -0,0 +1,23 @@
+! { dg-additional-options "-O2" }
+! { dg-additional-options "-ftree-parallelize-loops=32" }
+
+program main
+ implicit none
+
+ integer :: a(100,100), b(100,100)
+ integer :: i, j, d
+
+ !$acc kernels
+ do i=1,100
+ do j=1,100
+ a(i,j) = 1
+ b(i,j) = 2
+ a(i,j) = a(i,j) + b(i,j)
+ end do
+ end do
+ !$acc end kernels
+
+ d = sum(a)
+
+ print *,d
+end program main
diff --git a/gcc/testsuite/gfortran.dg/goacc/kernels-loops-adjacent.f95 b/gcc/testsuite/gfortran.dg/goacc/kernels-loops-adjacent.f95
new file mode 100644
index 0000000..fef3d10
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/goacc/kernels-loops-adjacent.f95
@@ -0,0 +1,19 @@
+! { dg-additional-options "-O2" }
+! { dg-additional-options "-ftree-parallelize-loops=10" }
+
+program main
+ implicit none
+
+ integer :: a(10000), b(10000)
+ integer :: d
+
+ !$acc kernels
+ a = 1
+ b = 2
+ a = a + b
+ !$acc end kernels
+
+ d = sum(a)
+
+ print *,d
+end program main
diff --git a/gcc/testsuite/gfortran.dg/goacc/list.f95 b/gcc/testsuite/gfortran.dg/goacc/list.f95
index 94fdadd..a8006bc 100644
--- a/gcc/testsuite/gfortran.dg/goacc/list.f95
+++ b/gcc/testsuite/gfortran.dg/goacc/list.f95
@@ -5,7 +5,7 @@ program test
implicit none
integer :: i, j, k, l, a(10)
- common /b/ j, k
+ common /b/ k
real, pointer :: p1 => NULL()
complex :: c, d(10)
@@ -108,4 +108,4 @@ program test
!$acc host_data use_device(p1) ! { dg-error "POINTER" }
!$acc end host_data
-end program test
\ No newline at end of file
+end program test
diff --git a/gcc/testsuite/gfortran.dg/goacc/loop-2.f95 b/gcc/testsuite/gfortran.dg/goacc/loop-2.f95
index f85691e..b5e6368 100644
--- a/gcc/testsuite/gfortran.dg/goacc/loop-2.f95
+++ b/gcc/testsuite/gfortran.dg/goacc/loop-2.f95
@@ -66,7 +66,7 @@ program test
!$acc loop seq worker ! { dg-error "conflicts with" }
DO i = 1,10
ENDDO
- !$acc loop gang worker ! { dg-error "conflicts with" }
+ !$acc loop gang worker
DO i = 1,10
ENDDO
@@ -94,10 +94,10 @@ program test
!$acc loop seq vector ! { dg-error "conflicts with" }
DO i = 1,10
ENDDO
- !$acc loop gang vector ! { dg-error "conflicts with" }
+ !$acc loop gang vector
DO i = 1,10
ENDDO
- !$acc loop worker vector ! { dg-error "conflicts with" }
+ !$acc loop worker vector
DO i = 1,10
ENDDO
@@ -239,7 +239,7 @@ program test
!$acc loop seq worker ! { dg-error "conflicts with" }
DO i = 1,10
ENDDO
- !$acc loop gang worker ! { dg-error "conflicts with" }
+ !$acc loop gang worker
DO i = 1,10
ENDDO
@@ -267,10 +267,10 @@ program test
!$acc loop seq vector ! { dg-error "conflicts with" }
DO i = 1,10
ENDDO
- !$acc loop gang vector ! { dg-error "conflicts with" }
+ !$acc loop gang vector
DO i = 1,10
ENDDO
- !$acc loop worker vector ! { dg-error "conflicts with" }
+ !$acc loop worker vector
DO i = 1,10
ENDDO
@@ -392,7 +392,7 @@ program test
!$acc kernels loop seq worker ! { dg-error "conflicts with" }
DO i = 1,10
ENDDO
- !$acc kernels loop gang worker ! { dg-error "conflicts with" }
+ !$acc kernels loop gang worker
DO i = 1,10
ENDDO
@@ -420,10 +420,10 @@ program test
!$acc kernels loop seq vector ! { dg-error "conflicts with" }
DO i = 1,10
ENDDO
- !$acc kernels loop gang vector ! { dg-error "conflicts with" }
+ !$acc kernels loop gang vector
DO i = 1,10
ENDDO
- !$acc kernels loop worker vector ! { dg-error "conflicts with" }
+ !$acc kernels loop worker vector
DO i = 1,10
ENDDO
@@ -544,7 +544,7 @@ program test
!$acc parallel loop seq worker ! { dg-error "conflicts with" }
DO i = 1,10
ENDDO
- !$acc parallel loop gang worker ! { dg-error "conflicts with" }
+ !$acc parallel loop gang worker
DO i = 1,10
ENDDO
@@ -572,10 +572,10 @@ program test
!$acc parallel loop seq vector ! { dg-error "conflicts with" }
DO i = 1,10
ENDDO
- !$acc parallel loop gang vector ! { dg-error "conflicts with" }
+ !$acc parallel loop gang vector
DO i = 1,10
ENDDO
- !$acc parallel loop worker vector ! { dg-error "conflicts with" }
+ !$acc parallel loop worker vector
DO i = 1,10
ENDDO
@@ -646,4 +646,4 @@ program test
!$acc parallel loop gang worker tile(*)
DO i = 1,10
ENDDO
-end
\ No newline at end of file
+end
diff --git a/gcc/testsuite/gfortran.dg/goacc/loop-4.f95 b/gcc/testsuite/gfortran.dg/goacc/loop-4.f95
new file mode 100644
index 0000000..7c53c02
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/goacc/loop-4.f95
@@ -0,0 +1,7 @@
+! Ensure that loops not affiliated with acc compute regions cause an error.
+
+subroutine test1
+ !$acc loop gang ! { dg-error "loop directive must be associated with an OpenACC compute region" }
+ DO i = 1,10
+ ENDDO
+end subroutine test1
diff --git a/gcc/testsuite/gfortran.dg/goacc/loop-5.f95 b/gcc/testsuite/gfortran.dg/goacc/loop-5.f95
new file mode 100644
index 0000000..5cbd975
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/goacc/loop-5.f95
@@ -0,0 +1,363 @@
+! { dg-do compile }
+! { dg-additional-options "-fmax-errors=100" }
+
+! { dg-prune-output "sorry, unimplemented" }
+! { dg-prune-output "Error: work-sharing region" }
+
+program test
+ implicit none
+ integer :: i, j
+
+ !$acc kernels
+ !$acc loop auto
+ DO i = 1,10
+ ENDDO
+ !$acc loop gang
+ DO i = 1,10
+ ENDDO
+ !$acc loop gang(5)
+ DO i = 1,10
+ ENDDO
+ !$acc loop gang(num:5)
+ DO i = 1,10
+ ENDDO
+ !$acc loop gang(static:5)
+ DO i = 1,10
+ ENDDO
+ !$acc loop gang(static:*)
+ DO i = 1,10
+ ENDDO
+ !$acc loop gang
+ DO i = 1,10
+ !$acc loop vector
+ DO j = 1,10
+ ENDDO
+ !$acc loop worker
+ DO j = 1,10
+ ENDDO
+ ENDDO
+
+ !$acc loop worker
+ DO i = 1,10
+ ENDDO
+ !$acc loop worker(5)
+ DO i = 1,10
+ ENDDO
+ !$acc loop worker(num:5)
+ DO i = 1,10
+ ENDDO
+ !$acc loop worker
+ DO i = 1,10
+ !$acc loop vector
+ DO j = 1,10
+ ENDDO
+ ENDDO
+ !$acc loop gang worker
+ DO i = 1,10
+ ENDDO
+
+ !$acc loop vector
+ DO i = 1,10
+ ENDDO
+ !$acc loop vector(5)
+ DO i = 1,10
+ ENDDO
+ !$acc loop vector(length:5)
+ DO i = 1,10
+ ENDDO
+ !$acc loop vector
+ DO i = 1,10
+ ENDDO
+ !$acc loop gang vector
+ DO i = 1,10
+ ENDDO
+ !$acc loop worker vector
+ DO i = 1,10
+ ENDDO
+
+ !$acc loop auto
+ DO i = 1,10
+ ENDDO
+
+ !$acc loop tile(1)
+ DO i = 1,10
+ ENDDO
+ !$acc loop tile(2)
+ DO i = 1,10
+ ENDDO
+ !$acc loop tile(6-2)
+ DO i = 1,10
+ ENDDO
+ !$acc loop tile(6+2)
+ DO i = 1,10
+ ENDDO
+ !$acc loop tile(*)
+ DO i = 1,10
+ ENDDO
+ !$acc loop tile(*, 1)
+ DO i = 1,10
+ DO j = 1,10
+ ENDDO
+ ENDDO
+ !$acc loop tile(-1) ! { dg-warning "must be positive" }
+ do i = 1,10
+ enddo
+ !$acc loop vector tile(*)
+ DO i = 1,10
+ ENDDO
+ !$acc loop worker tile(*)
+ DO i = 1,10
+ ENDDO
+ !$acc loop gang tile(*)
+ DO i = 1,10
+ ENDDO
+ !$acc loop vector gang tile(*)
+ DO i = 1,10
+ ENDDO
+ !$acc loop vector worker tile(*)
+ DO i = 1,10
+ ENDDO
+ !$acc loop gang worker tile(*)
+ DO i = 1,10
+ ENDDO
+ !$acc end kernels
+
+
+ !$acc parallel
+ !$acc loop tile(1)
+ DO i = 1,10
+ ENDDO
+ !$acc loop tile(*)
+ DO i = 1,10
+ ENDDO
+ !$acc loop tile(2)
+ DO i = 1,10
+ DO j = 1,10
+ ENDDO
+ ENDDO
+ !$acc loop tile(-1) ! { dg-warning "must be positive" }
+ do i = 1,10
+ enddo
+ !$acc loop vector tile(*)
+ DO i = 1,10
+ ENDDO
+ !$acc loop worker tile(*)
+ DO i = 1,10
+ ENDDO
+ !$acc loop gang tile(*)
+ DO i = 1,10
+ ENDDO
+ !$acc loop vector gang tile(*)
+ DO i = 1,10
+ ENDDO
+ !$acc loop vector worker tile(*)
+ DO i = 1,10
+ ENDDO
+ !$acc loop gang worker tile(*)
+ DO i = 1,10
+ ENDDO
+ !$acc end parallel
+
+ !$acc kernels loop auto
+ DO i = 1,10
+ ENDDO
+ !$acc kernels loop gang
+ DO i = 1,10
+ ENDDO
+ !$acc kernels loop gang(5)
+ DO i = 1,10
+ ENDDO
+ !$acc kernels loop gang(num:5)
+ DO i = 1,10
+ ENDDO
+ !$acc kernels loop gang(static:5)
+ DO i = 1,10
+ ENDDO
+ !$acc kernels loop gang(static:*)
+ DO i = 1,10
+ ENDDO
+ !$acc kernels loop gang
+ DO i = 1,10
+ !$acc kernels loop gang ! { dg-error "OpenACC construct inside of non-OpenACC region" }
+ DO j = 1,10
+ ENDDO
+ ENDDO
+
+ !$acc kernels loop worker
+ DO i = 1,10
+ ENDDO
+ !$acc kernels loop worker(5)
+ DO i = 1,10
+ ENDDO
+ !$acc kernels loop worker(num:5)
+ DO i = 1,10
+ ENDDO
+ !$acc kernels loop worker
+ DO i = 1,10
+ !$acc kernels loop worker ! { dg-error "OpenACC construct inside of non-OpenACC region" }
+ DO j = 1,10
+ ENDDO
+ !$acc kernels loop gang ! { dg-error "OpenACC construct inside of non-OpenACC region" }
+ DO j = 1,10
+ ENDDO
+ ENDDO
+ !$acc kernels loop gang worker
+ DO i = 1,10
+ ENDDO
+
+ !$acc kernels loop vector
+ DO i = 1,10
+ ENDDO
+ !$acc kernels loop vector(5)
+ DO i = 1,10
+ ENDDO
+ !$acc kernels loop vector(length:5)
+ DO i = 1,10
+ ENDDO
+ !$acc kernels loop vector
+ DO i = 1,10
+ !$acc kernels loop vector ! { dg-error "OpenACC construct inside of non-OpenACC region" }
+ DO j = 1,10
+ ENDDO
+ !$acc kernels loop worker ! { dg-error "OpenACC construct inside of non-OpenACC region" }
+ DO j = 1,10
+ ENDDO
+ !$acc kernels loop gang ! { dg-error "OpenACC construct inside of non-OpenACC region" }
+ DO j = 1,10
+ ENDDO
+ ENDDO
+ !$acc kernels loop gang vector
+ DO i = 1,10
+ ENDDO
+ !$acc kernels loop worker vector
+ DO i = 1,10
+ ENDDO
+
+ !$acc kernels loop auto
+ DO i = 1,10
+ ENDDO
+
+ !$acc kernels loop tile(1)
+ DO i = 1,10
+ ENDDO
+ !$acc kernels loop tile(*)
+ DO i = 1,10
+ ENDDO
+ !$acc kernels loop tile(*, 1)
+ DO i = 1,10
+ DO j = 1,10
+ ENDDO
+ ENDDO
+ !$acc kernels loop tile(-1) ! { dg-warning "must be positive" }
+ do i = 1,10
+ enddo
+ !$acc kernels loop vector tile(*)
+ DO i = 1,10
+ ENDDO
+ !$acc kernels loop worker tile(*)
+ DO i = 1,10
+ ENDDO
+ !$acc kernels loop gang tile(*)
+ DO i = 1,10
+ ENDDO
+ !$acc kernels loop vector gang tile(*)
+ DO i = 1,10
+ ENDDO
+ !$acc kernels loop vector worker tile(*)
+ DO i = 1,10
+ ENDDO
+ !$acc kernels loop gang worker tile(*)
+ DO i = 1,10
+ ENDDO
+
+ !$acc parallel loop auto
+ DO i = 1,10
+ ENDDO
+ !$acc parallel loop gang
+ DO i = 1,10
+ ENDDO
+ !$acc parallel loop gang(static:5)
+ DO i = 1,10
+ ENDDO
+ !$acc parallel loop gang(static:*)
+ DO i = 1,10
+ ENDDO
+ !$acc parallel loop gang
+ DO i = 1,10
+ !$acc parallel loop gang ! { dg-error "OpenACC construct inside of non-OpenACC region" }
+ DO j = 1,10
+ ENDDO
+ ENDDO
+
+ !$acc parallel loop worker
+ DO i = 1,10
+ ENDDO
+ !$acc parallel loop worker
+ DO i = 1,10
+ !$acc parallel loop worker ! { dg-error "OpenACC construct inside of non-OpenACC region" }
+ DO j = 1,10
+ ENDDO
+ !$acc parallel loop gang ! { dg-error "OpenACC construct inside of non-OpenACC region" }
+ DO j = 1,10
+ ENDDO
+ ENDDO
+ !$acc parallel loop gang worker
+ DO i = 1,10
+ ENDDO
+
+ !$acc parallel loop vector
+ DO i = 1,10
+ !$acc parallel loop vector ! { dg-error "OpenACC construct inside of non-OpenACC region" }
+ DO j = 1,10
+ ENDDO
+ !$acc parallel loop worker ! { dg-error "OpenACC construct inside of non-OpenACC region" }
+ DO j = 1,10
+ ENDDO
+ !$acc parallel loop gang ! { dg-error "OpenACC construct inside of non-OpenACC region" }
+ DO j = 1,10
+ ENDDO
+ ENDDO
+ !$acc parallel loop gang vector
+ DO i = 1,10
+ ENDDO
+ !$acc parallel loop worker vector
+ DO i = 1,10
+ ENDDO
+
+ !$acc parallel loop auto
+ DO i = 1,10
+ ENDDO
+
+ !$acc parallel loop tile(1)
+ DO i = 1,10
+ ENDDO
+ !$acc parallel loop tile(*)
+ DO i = 1,10
+ ENDDO
+ !$acc parallel loop tile(*, 1)
+ DO i = 1,10
+ DO j = 1,10
+ ENDDO
+ ENDDO
+ !$acc parallel loop tile(-1) ! { dg-warning "must be positive" }
+ do i = 1,10
+ enddo
+ !$acc parallel loop vector tile(*)
+ DO i = 1,10
+ ENDDO
+ !$acc parallel loop worker tile(*)
+ DO i = 1,10
+ ENDDO
+ !$acc parallel loop gang tile(*)
+ DO i = 1,10
+ ENDDO
+ !$acc parallel loop vector gang tile(*)
+ DO i = 1,10
+ ENDDO
+ !$acc parallel loop vector worker tile(*)
+ DO i = 1,10
+ ENDDO
+ !$acc parallel loop gang worker tile(*)
+ DO i = 1,10
+ ENDDO
+end
diff --git a/gcc/testsuite/gfortran.dg/goacc/loop-6.f95 b/gcc/testsuite/gfortran.dg/goacc/loop-6.f95
new file mode 100644
index 0000000..c6236db
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/goacc/loop-6.f95
@@ -0,0 +1,80 @@
+! { dg-do compile }
+! { dg-additional-options "-fmax-errors=100" }
+
+! { dg-prune-output "sorry, unimplemented" }
+! { dg-prune-output "Error: work-sharing region" }
+
+program test
+ implicit none
+ integer :: i, j
+
+ !$acc parallel
+ !$acc loop auto
+ DO i = 1,10
+ ENDDO
+ !$acc loop gang
+ DO i = 1,10
+ ENDDO
+ !$acc loop gang(static:5)
+ DO i = 1,10
+ ENDDO
+ !$acc loop gang(static:*)
+ DO i = 1,10
+ ENDDO
+ !$acc loop gang
+ DO i = 1,10
+ !$acc loop vector
+ DO j = 1,10
+ ENDDO
+ !$acc loop worker
+ DO j = 1,10
+ ENDDO
+ ENDDO
+
+ !$acc loop worker
+ DO i = 1,10
+ ENDDO
+ !$acc loop worker
+ DO i = 1,10
+ !$acc loop vector
+ DO j = 1,10
+ ENDDO
+ ENDDO
+ !$acc loop gang worker
+ DO i = 1,10
+ ENDDO
+
+ !$acc loop vector
+ DO i = 1,10
+ ENDDO
+ !$acc loop vector(5) ! { dg-error "argument not permitted" }
+ DO i = 1,10
+ ENDDO
+ !$acc loop vector(length:5) ! { dg-error "argument not permitted" }
+ DO i = 1,10
+ ENDDO
+ !$acc loop vector
+ DO i = 1,10
+ ENDDO
+ !$acc loop gang vector
+ DO i = 1,10
+ ENDDO
+ !$acc loop worker vector
+ DO i = 1,10
+ ENDDO
+
+ !$acc loop auto
+ DO i = 1,10
+ ENDDO
+ !$acc end parallel
+
+ !$acc parallel loop vector
+ DO i = 1,10
+ ENDDO
+ !$acc parallel loop vector(5) ! { dg-error "argument not permitted" }
+ DO i = 1,10
+ ENDDO
+ !$acc parallel loop vector(length:5) ! { dg-error "argument not permitted" }
+ DO i = 1,10
+ ENDDO
+end
diff --git a/gcc/testsuite/gfortran.dg/goacc/loop-tree-1.f90 b/gcc/testsuite/gfortran.dg/goacc/loop-tree-1.f90
index d72bae4..c7f6fae 100644
--- a/gcc/testsuite/gfortran.dg/goacc/loop-tree-1.f90
+++ b/gcc/testsuite/gfortran.dg/goacc/loop-tree-1.f90
@@ -3,6 +3,9 @@
! test for tree-dump-original and spaces-commas
+! { dg-prune-output "sorry, unimplemented" }
+! { dg-prune-output "Error: work-sharing region" }
+
program test
implicit none
integer :: i, j, k, m, sum
@@ -17,7 +20,7 @@ program test
!$acc loop independent gang (3)
DO i = 1,10
- !$acc loop worker(3) ! { dg-error "work-sharing region may not be closely nested inside of work-sharing, critical, ordered, master or explicit task region" }
+ !$acc loop worker(3)
DO j = 1,10
!$acc loop vector(5)
DO k = 1,10
diff --git a/gcc/testsuite/gfortran.dg/goacc/modules.f95 b/gcc/testsuite/gfortran.dg/goacc/modules.f95
new file mode 100644
index 0000000..19a2abe
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/goacc/modules.f95
@@ -0,0 +1,55 @@
+! { dg-do compile }
+
+MODULE reduction_test
+
+CONTAINS
+
+SUBROUTINE reduction_kernel(x_min,x_max,y_min,y_max,arr,sum)
+
+ IMPLICIT NONE
+
+ INTEGER :: x_min,x_max,y_min,y_max
+ REAL(KIND=8), DIMENSION(x_min-2:x_max+2,y_min-2:y_max+2) :: arr
+ REAL(KIND=8) :: sum
+
+ INTEGER :: j,k
+
+ sum=0.0
+
+!$ACC DATA PRESENT(arr) COPY(sum)
+!$ACC PARALLEL LOOP REDUCTION(+ : sum)
+ DO k=y_min,y_max
+ DO j=x_min,x_max
+ sum=sum*arr(j,k)
+ ENDDO
+ ENDDO
+!$ACC END PARALLEL LOOP
+!$ACC END DATA
+
+END SUBROUTINE reduction_kernel
+
+END MODULE reduction_test
+
+program main
+ use reduction_test
+
+ integer :: x_min,x_max,y_min,y_max
+ real(kind=8), dimension(1:10,1:10) :: arr
+ real(kind=8) :: sum
+
+ x_min = 5
+ x_max = 6
+ y_min = 5
+ y_max = 6
+
+ arr(:,:) = 1.0
+
+ sum = 1.0
+
+ !$acc data copy(arr)
+
+ call field_summary_kernel(x_min,x_max,y_min,y_max,arr,sum)
+
+ !$acc end data
+
+end program
diff --git a/gcc/testsuite/gfortran.dg/goacc/multi-clause.f90 b/gcc/testsuite/gfortran.dg/goacc/multi-clause.f90
new file mode 100644
index 0000000..2870076
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/goacc/multi-clause.f90
@@ -0,0 +1,13 @@
+! Test if variable appearing in multiple clauses are errors.
+
+! { dg-compile }
+
+program combined
+ implicit none
+ integer a(100), i, j
+
+ !$acc parallel loop reduction (+:j) copy (j) copyout(j) ! { dg-error "Symbol 'j' present on multiple clauses" }
+ do i = 1, 100
+ end do
+ !$acc end parallel loop
+end program combined
diff --git a/gcc/testsuite/gfortran.dg/goacc/parallel-tree.f95 b/gcc/testsuite/gfortran.dg/goacc/parallel-tree.f95
index 4915744..9037f6c 100644
--- a/gcc/testsuite/gfortran.dg/goacc/parallel-tree.f95
+++ b/gcc/testsuite/gfortran.dg/goacc/parallel-tree.f95
@@ -37,4 +37,3 @@ end program test
! { dg-final { scan-tree-dump-times "map\\(force_deviceptr:u\\)" 1 "original" } }
! { dg-final { scan-tree-dump-times "private\\(v\\)" 1 "original" } }
-! { dg-final { scan-tree-dump-times "firstprivate\\(w\\)" 1 "original" } }
diff --git a/gcc/testsuite/gfortran.dg/goacc/update.f95 b/gcc/testsuite/gfortran.dg/goacc/update.f95
new file mode 100644
index 0000000..ae23dfc
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/goacc/update.f95
@@ -0,0 +1,5 @@
+! { dg-do compile }
+
+program foo
+ !$acc update ! { dg-error "must contain at least one 'device' or 'host/self' clause" }
+end program foo