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From: Julian Brown <julian@codesourcery.com>
To: <gcc-patches@gcc.gnu.org>
Cc: <fortran@gcc.gnu.org>, <tobias@codesourcery.com>,
	<jakub@redhat.com>, <thomas@codesourcery.com>
Subject: [PATCH] OpenACC: Further attach/detach clause fixes for Fortran [PR109622]
Date: Sat, 29 Apr 2023 03:57:41 -0700	[thread overview]
Message-ID: <20230429105741.108576-1-julian@codesourcery.com> (raw)

This patch moves several tests introduced by the following patch:

  https://gcc.gnu.org/pipermail/gcc-patches/2023-April/616939.html

into the proper location for OpenACC testing (thanks to Thomas for
spotting my mistake!), and also fixes a few additional problems --
missing diagnostics for non-pointer attaches, and a case where a pointer
was incorrectly dereferenced. Tests are also adjusted for vector-length
warnings on nvidia accelerators.

Tested with offloading to nvptx. OK?

2023-04-29  Julian Brown  <julian@codesourcery.com>

	PR fortran/109622

gcc/fortran/
	* trans-openmp.cc (gfc_trans_omp_clauses): Add diagnostic for
	non-pointer/non-allocatable attach/detach.  Remove dereference for
	pointer-to-scalar derived type component attach/detach.

gcc/testsuite/
	* gfortran.dg/goacc/pr109622-5.f90: New test.

libgomp/
	* testsuite/libgomp.fortran/pr109622.f90: Move test...
	* testsuite/libgomp.oacc-fortran/pr109622.f90: ...to here. Ignore
	vector length warning.
	* testsuite/libgomp.fortran/pr109622-2.f90: Move test...
	* testsuite/libgomp.oacc-fortran/pr109622-2.f90: ...to here.  Add
	missing copyin/copyout variable. Ignore vector length warnings.
	* testsuite/libgomp.fortran/pr109622-3.f90: Move test...
	* testsuite/libgomp.oacc-fortran/pr109622-3.f90: ...to here.  Ignore
	vector length warnings.
	* testsuite/libgomp.oacc-fortran/pr109622-4.f90: New test.
---
 gcc/fortran/trans-openmp.cc                   | 38 ++++++++++++---
 .../gfortran.dg/goacc/pr109622-5.f90          | 45 ++++++++++++++++++
 .../pr109622-2.f90                            |  7 ++-
 .../pr109622-3.f90                            |  3 ++
 .../libgomp.oacc-fortran/pr109622-4.f90       | 47 +++++++++++++++++++
 .../pr109622.f90                              |  3 ++
 6 files changed, 135 insertions(+), 8 deletions(-)
 create mode 100644 gcc/testsuite/gfortran.dg/goacc/pr109622-5.f90
 rename libgomp/testsuite/{libgomp.fortran => libgomp.oacc-fortran}/pr109622-2.f90 (63%)
 rename libgomp/testsuite/{libgomp.fortran => libgomp.oacc-fortran}/pr109622-3.f90 (76%)
 create mode 100644 libgomp/testsuite/libgomp.oacc-fortran/pr109622-4.f90
 rename libgomp/testsuite/{libgomp.fortran => libgomp.oacc-fortran}/pr109622.f90 (78%)

diff --git a/gcc/fortran/trans-openmp.cc b/gcc/fortran/trans-openmp.cc
index 6ee22faa836a..b9a4ae3e53a8 100644
--- a/gcc/fortran/trans-openmp.cc
+++ b/gcc/fortran/trans-openmp.cc
@@ -3395,6 +3395,8 @@ gfc_trans_omp_clauses (stmtblock_t *block, gfc_omp_clauses *clauses,
 			  && (n->u.map_op == OMP_MAP_ATTACH
 			      || n->u.map_op == OMP_MAP_DETACH))
 			{
+			  OMP_CLAUSE_DECL (node)
+			    = build_fold_addr_expr (OMP_CLAUSE_DECL (node));
 			  OMP_CLAUSE_SIZE (node) = size_zero_node;
 			  goto finalize_map_clause;
 			}
@@ -3430,6 +3432,13 @@ gfc_trans_omp_clauses (stmtblock_t *block, gfc_omp_clauses *clauses,
 			    = TYPE_SIZE_UNIT (gfc_charlen_type_node);
 			}
 		    }
+		  else if (openacc
+			   && (n->u.map_op == OMP_MAP_ATTACH
+			       || n->u.map_op == OMP_MAP_DETACH))
+		    gfc_error ("%qs clause argument not pointer or "
+			       "allocatable at %L",
+			       (n->u.map_op == OMP_MAP_ATTACH)
+			       ? "attach" : "detach", &where);
 		}
 	      else if (n->expr
 		       && n->expr->expr_type == EXPR_VARIABLE
@@ -3510,6 +3519,13 @@ gfc_trans_omp_clauses (stmtblock_t *block, gfc_omp_clauses *clauses,
 			}
 		      else
 			{
+			  if (openacc
+				&& (n->u.map_op == OMP_MAP_ATTACH
+				    || n->u.map_op == OMP_MAP_DETACH))
+			    gfc_error ("%qs clause argument not pointer or "
+				       "allocatable at %L",
+				       (n->u.map_op == OMP_MAP_ATTACH)
+				       ? "attach" : "detach", &where);
 			  OMP_CLAUSE_DECL (node) = inner;
 			  OMP_CLAUSE_SIZE (node)
 			    = TYPE_SIZE_UNIT (TREE_TYPE (inner));
@@ -3523,15 +3539,25 @@ gfc_trans_omp_clauses (stmtblock_t *block, gfc_omp_clauses *clauses,
 		      if (n->u.map_op == OMP_MAP_ATTACH
 			  || n->u.map_op == OMP_MAP_DETACH)
 			{
-			  if (GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (inner)))
+			  if (POINTER_TYPE_P (TREE_TYPE (inner))
+			      || GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (inner)))
 			    {
-			      tree ptr = gfc_conv_descriptor_data_get (inner);
-			      OMP_CLAUSE_DECL (node) = ptr;
+			      if (GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (inner)))
+				{
+				  tree ptr
+				    = gfc_conv_descriptor_data_get (inner);
+				  OMP_CLAUSE_DECL (node) = ptr;
+				}
+			      else
+				OMP_CLAUSE_DECL (node) = inner;
+			      OMP_CLAUSE_SIZE (node) = size_zero_node;
+			      goto finalize_map_clause;
 			    }
 			  else
-			    OMP_CLAUSE_DECL (node) = inner;
-			  OMP_CLAUSE_SIZE (node) = size_zero_node;
-			  goto finalize_map_clause;
+			    gfc_error ("%qs clause argument not pointer or "
+				       "allocatable at %L",
+				       (n->u.map_op == OMP_MAP_ATTACH)
+				       ? "attach" : "detach", &where);
 			}
 
 		      if (GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (inner)))
diff --git a/gcc/testsuite/gfortran.dg/goacc/pr109622-5.f90 b/gcc/testsuite/gfortran.dg/goacc/pr109622-5.f90
new file mode 100644
index 000000000000..e2748964a1c2
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/goacc/pr109622-5.f90
@@ -0,0 +1,45 @@
+! { dg-do compile }
+
+use openacc
+implicit none
+
+type t
+integer :: foo
+character(len=8) :: bar
+integer :: qux(5)
+end type t
+
+type(t) :: var
+
+var%foo = 3
+var%bar = "HELLOOMP"
+var%qux = (/ 1, 2, 3, 4, 5 /) 
+
+!$acc enter data copyin(var)
+
+!$acc enter data attach(var%foo)
+! { dg-error "'attach' clause argument not pointer or allocatable" "" { target *-*-* } .-1 }
+!$acc enter data attach(var%bar)
+! { dg-error "'attach' clause argument not pointer or allocatable" "" { target *-*-* } .-1 }
+!$acc enter data attach(var%qux)
+! { dg-error "'attach' clause argument not pointer or allocatable" "" { target *-*-* } .-1 }
+
+!$acc serial
+var%foo = 5
+var%bar = "GOODBYE!"
+var%qux = (/ 6, 7, 8, 9, 10 /)
+!$acc end serial
+
+!$acc exit data detach(var%qux)
+! { dg-error "'detach' clause argument not pointer or allocatable" "" { target *-*-* } .-1 }
+!$acc exit data detach(var%bar)
+! { dg-error "'detach' clause argument not pointer or allocatable" "" { target *-*-* } .-1 }
+!$acc exit data detach(var%foo)
+! { dg-error "'detach' clause argument not pointer or allocatable" "" { target *-*-* } .-1 }
+
+!$acc exit data copyout(var)
+
+if (var%foo.ne.5) stop 1
+if (var%bar.ne."GOODBYE!") stop 2
+
+end
diff --git a/libgomp/testsuite/libgomp.fortran/pr109622-2.f90 b/libgomp/testsuite/libgomp.oacc-fortran/pr109622-2.f90
similarity index 63%
rename from libgomp/testsuite/libgomp.fortran/pr109622-2.f90
rename to libgomp/testsuite/libgomp.oacc-fortran/pr109622-2.f90
index 8c5f373f39f7..d3cbebea6892 100644
--- a/libgomp/testsuite/libgomp.fortran/pr109622-2.f90
+++ b/libgomp/testsuite/libgomp.oacc-fortran/pr109622-2.f90
@@ -1,5 +1,7 @@
 ! { dg-do run }
 
+implicit none
+
 type t
 integer :: foo
 integer, pointer :: bar
@@ -13,18 +15,19 @@ var%bar => tgt
 var%foo = 99
 tgt = 199
 
-!$acc enter data copyin(var)
+!$acc enter data copyin(var, tgt)
 
 !$acc enter data attach(var%bar)
 
 !$acc serial
+! { dg-warning "using .vector_length \\(32\\)., ignoring 1" "" { target openacc_nvidia_accel_selected } .-1 }
 var%foo = 5
 var%bar = 7
 !$acc end serial
 
 !$acc exit data detach(var%bar)
 
-!$acc exit data copyout(var)
+!$acc exit data copyout(var, tgt)
 
 if (var%foo.ne.5) stop 1
 if (tgt.ne.7) stop 2
diff --git a/libgomp/testsuite/libgomp.fortran/pr109622-3.f90 b/libgomp/testsuite/libgomp.oacc-fortran/pr109622-3.f90
similarity index 76%
rename from libgomp/testsuite/libgomp.fortran/pr109622-3.f90
rename to libgomp/testsuite/libgomp.oacc-fortran/pr109622-3.f90
index 3ee1b43a7464..a25b1a814143 100644
--- a/libgomp/testsuite/libgomp.fortran/pr109622-3.f90
+++ b/libgomp/testsuite/libgomp.oacc-fortran/pr109622-3.f90
@@ -1,5 +1,7 @@
 ! { dg-do run }
 
+implicit none
+
 type t
 integer :: foo
 integer, pointer :: bar(:)
@@ -18,6 +20,7 @@ tgt = 199
 !$acc enter data attach(var%bar)
 
 !$acc serial
+! { dg-warning "using .vector_length \\(32\\)., ignoring 1" "" { target openacc_nvidia_accel_selected } .-1 }
 var%foo = 5
 var%bar = 7
 !$acc end serial
diff --git a/libgomp/testsuite/libgomp.oacc-fortran/pr109622-4.f90 b/libgomp/testsuite/libgomp.oacc-fortran/pr109622-4.f90
new file mode 100644
index 000000000000..3198a0bbf79f
--- /dev/null
+++ b/libgomp/testsuite/libgomp.oacc-fortran/pr109622-4.f90
@@ -0,0 +1,47 @@
+! { dg-do run }
+
+use openacc
+implicit none
+
+type t
+integer :: foo
+character(len=8), pointer :: bar
+character(len=4), allocatable :: qux
+end type t
+
+type(t) :: var
+character(len=8), target :: tgt
+
+allocate(var%qux)
+
+var%bar => tgt
+
+var%foo = 99
+tgt = "Octopus!"
+var%qux = "Fish"
+
+!$acc enter data copyin(var, tgt)
+
+! Avoid automatic attach (i.e. with "enter data")
+call acc_copyin (var%qux)
+
+!$acc enter data attach(var%bar, var%qux)
+
+!$acc serial
+! { dg-warning "using .vector_length \\(32\\)., ignoring 1" "" { target openacc_nvidia_accel_selected } .-1 }
+var%foo = 5
+var%bar = "Plankton"
+var%qux = "Pond"
+!$acc end serial
+
+!$acc exit data detach(var%bar, var%qux)
+
+call acc_copyout (var%qux)
+
+!$acc exit data copyout(var, tgt)
+
+if (var%foo.ne.5) stop 1
+if (tgt.ne."Plankton") stop 2
+if (var%qux.ne."Pond") stop 3
+
+end
diff --git a/libgomp/testsuite/libgomp.fortran/pr109622.f90 b/libgomp/testsuite/libgomp.oacc-fortran/pr109622.f90
similarity index 78%
rename from libgomp/testsuite/libgomp.fortran/pr109622.f90
rename to libgomp/testsuite/libgomp.oacc-fortran/pr109622.f90
index 5b8c4102f768..a17c4f627147 100644
--- a/libgomp/testsuite/libgomp.fortran/pr109622.f90
+++ b/libgomp/testsuite/libgomp.oacc-fortran/pr109622.f90
@@ -1,5 +1,7 @@
 ! { dg-do run }
 
+implicit none
+
 type t
 integer :: value
 type(t), pointer :: chain
@@ -18,6 +20,7 @@ nullify(var2%chain)
 !$acc enter data attach(var%chain)
 
 !$acc serial
+! { dg-warning "using .vector_length \\(32\\)., ignoring 1" "" { target openacc_nvidia_accel_selected } .-1 }
 var%value = 5
 var%chain%value = 7
 !$acc end serial
-- 
2.29.2


         reply	other threads:[~2023-04-29 10:57 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <138a36f7-8b1e-5955-1d3a-5713a0fcf5b6@univ-grenoble-alpes.fr>
2023-04-27 18:36 ` [PATCH] OpenACC: Stand-alone " Julian Brown
2023-04-28  8:16   ` Tobias Burnus
2023-04-28 12:56   ` Thomas Schwinge
2023-04-29 10:57     ` Julian Brown [this message]
2023-05-02 10:29       ` [PATCH] OpenACC: Further " Tobias Burnus
2023-05-03 12:59         ` Julian Brown
2023-05-03 13:50           ` Tobias Burnus
2023-05-03 11:29       ` Thomas Schwinge

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