From 87a5ccfb7cbabcf510f7909387a16cc0f73931f3 Mon Sep 17 00:00:00 2001
From: Joseph Myers <joseph@codesourcery.com>
Date: Mon, 29 Oct 2018 14:31:20 +0000
Subject: [PATCH] [OpenACC] Support C++ "this" in OpenACC directives

2018-10-29  Joseph Myers  <joseph@codesourcery.com>
	    Julian Brown  <julian@codesourcery.com>

	* semantics.c (handle_omp_array_sections_1): Allow array sections with
	"this" pointer for OpenACC.

Co-Authored-By: Julian Brown <julian@codesourcery.com>

From-SVN: r265591
---
 gcc/cp/ChangeLog                          |  7 +++++
 gcc/cp/semantics.c                        |  3 ++-
 libgomp/ChangeLog                         |  5 ++++
 libgomp/testsuite/libgomp.oacc-c++/this.C | 43 +++++++++++++++++++++++++++++++
 4 files changed, 57 insertions(+), 1 deletion(-)
 create mode 100644 libgomp/testsuite/libgomp.oacc-c++/this.C

diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index 27b739c..9130b86 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,3 +1,10 @@
+2018-10-29  Joseph Myers  <joseph@codesourcery.com>
+	    Julian Brown  <julian@codesourcery.com>
+
+        PR c++/66053
+        * semantics.c (handle_omp_array_sections_1): Allow array
+        sections with "this" pointer for OpenACC.
+
 2018-10-25  Jason Merrill  <jason@redhat.com>
 
 	* parser.c (cp_parser_sizeof_operand): Remove redundant use of
diff --git a/gcc/cp/semantics.c b/gcc/cp/semantics.c
index c7f53d1..4c05365 100644
--- a/gcc/cp/semantics.c
+++ b/gcc/cp/semantics.c
@@ -4600,7 +4600,8 @@ handle_omp_array_sections_1 (tree c, tree t, vec<tree> &types,
 		      omp_clause_code_name[OMP_CLAUSE_CODE (c)]);
 	  return error_mark_node;
 	}
-      else if (TREE_CODE (t) == PARM_DECL
+      else if (ort == C_ORT_OMP
+	       && TREE_CODE (t) == PARM_DECL
 	       && DECL_ARTIFICIAL (t)
 	       && DECL_NAME (t) == this_identifier)
 	{
diff --git a/libgomp/ChangeLog b/libgomp/ChangeLog
index 9c2ae06..81fae2f 100644
--- a/libgomp/ChangeLog
+++ b/libgomp/ChangeLog
@@ -1,3 +1,8 @@
+2018-10-29  Joseph Myers  <joseph@codesourcery.com>
+	    Julian Brown  <julian@codesourcery.com>
+
+	* testsuite/libgomp.oacc-c++/this.C: New.
+
 2018-09-18  Cesar Philippidis  <cesar@codesourcery.com>
 
 	* plugin/plugin-nvptx.c (struct cuda_map): New.
diff --git a/libgomp/testsuite/libgomp.oacc-c++/this.C b/libgomp/testsuite/libgomp.oacc-c++/this.C
new file mode 100644
index 0000000..510c690
--- /dev/null
+++ b/libgomp/testsuite/libgomp.oacc-c++/this.C
@@ -0,0 +1,43 @@
+#include <cstdlib>
+#include <iostream>
+using namespace std;
+
+class test {
+  public:
+  int a;
+
+  test ()
+  {
+    a = -1;
+#pragma acc enter data copyin (this[0:1])
+  }
+
+  ~test ()
+  {
+#pragma acc exit data delete (this[0:1])
+  }
+
+  void set (int i)
+  {
+    a = i;
+#pragma acc update device (this[0:1])
+  }
+
+  int get ()
+  {
+#pragma acc update host (this[0:1])
+    return a;
+  }
+};
+
+int
+main ()
+{
+  test t;
+
+  t.set (4);
+  if (t.get () != 4)
+    abort ();
+
+  return 0;
+}
-- 
2.7.4