PR middle-end/27337

	* gimplify.c (gimplify_scan_omp_clauses): Handle INDIRECT_REF
	around RESULT_DECL for result passed by reference.
	(gimplify_expr): Call omp_notice_variable when RESULT_DECL is seen.
	* omp-low.c (use_pointer_for_field): Don't look at
	DECL_HAS_VALUE_EXPR_P for RESULT_DECLs.
	(scan_omp_1): Call remap_decl on RESULT_DECLs.
	(lower_rec_input_clauses): Don't allocate VLA memory for the second
	time or var for passing by reference for
	OMP_CLAUSE_LASTPRIVATE_FIRSTPRIVATE clauses.  Allow creation of
	TREE_ADDRESSABLE variables when passing by reference.

	* omp-low.c (dump_omp_region): Fix output formatting.
cp/
	* cp-gimplify.c (cxx_omp_privatize_by_reference): New function.
	* cp-tree.h (cxx_omp_privatize_by_reference): New prototype.
	* cp-objcp-common.h (LANG_HOOKS_OMP_PRIVATIZE_BY_REFERENCE): Define.
testsuite/
	* g++.dg/gomp/pr27337-1.C: New test.
	* g++.dg/gomp/pr27337-2.C: New test.
libgomp/
	* testsuite/libgomp.c++/pr27337.C: New test.


git-svn-id: https://gcc.gnu.org/svn/gcc/trunk@113456 138bc75d-0d04-0410-961f-82ee72b054a4

2 files changed, 96 insertions, 0 deletions

diff --git a/libgomp/ChangeLog b/libgomp/ChangeLog
index 657b7ea0425..754d0f91df6 100644
--- a/libgomp/ChangeLog
+++ b/libgomp/ChangeLog
@@ -1,3 +1,8 @@
+2006-05-02  Jakub Jelinek  <jakub@redhat.com>
+
+	PR middle-end/27337
+	* testsuite/libgomp.c++/pr27337.C: New test.
+
 2006-04-26  Jakub Jelinek  <jakub@redhat.com>
 
 	PR c/26171
diff --git a/libgomp/testsuite/libgomp.c++/pr27337.C b/libgomp/testsuite/libgomp.c++/pr27337.C
new file mode 100644
index 00000000000..c12154e02b6
--- /dev/null
+++ b/libgomp/testsuite/libgomp.c++/pr27337.C
@@ -0,0 +1,91 @@
+// PR middle-end/27337
+// { dg-do run }
+
+#include <omp.h>
+
+extern "C" void abort (void);
+
+struct S
+{
+  S ();
+  ~S ();
+  S (const S &);
+  int i;
+};
+
+int n[3];
+
+S::S () : i(18)
+{
+  if (omp_get_thread_num () != 0)
+#pragma omp atomic
+    n[0]++;
+}
+
+S::~S ()
+{
+  if (omp_get_thread_num () != 0)
+#pragma omp atomic
+    n[1]++;
+}
+
+S::S (const S &x)
+{
+  if (x.i != 18)
+    abort ();
+  i = 118;
+  if (omp_get_thread_num () != 0)
+#pragma omp atomic
+    n[2]++;
+}
+
+S
+foo ()
+{
+  int i;
+  S ret;
+
+#pragma omp parallel for firstprivate (ret) lastprivate (ret) \
+			 schedule (static, 1) num_threads (4)
+  for (i = 0; i < 4; i++)
+    {
+      ret.i += omp_get_thread_num ();
+      // FIXME: The following barrier should be unnecessary.
+#pragma omp barrier
+    }
+
+  return ret;
+}
+
+S
+bar ()
+{
+  int i;
+  S ret;
+
+#pragma omp parallel for num_threads (4)
+  for (i = 0; i < 4; i++)
+#pragma omp atomic
+    ret.i += omp_get_thread_num () + 1;
+
+  return ret;
+}
+
+S x;
+
+int
+main (void)
+{
+  omp_set_dynamic (false);
+  x = foo ();
+  if (n[0] != 0 || n[1] != 3 || n[2] != 3)
+    abort ();
+  if (x.i != 118 + 3)
+    abort ();
+  x = bar ();
+  if (n[0] != 0 || n[1] != 3 || n[2] != 3)
+    abort ();
+  if (x.i != 18 + 0 + 1 + 2 + 3 + 4)
+    abort ();
+  return 0;
+}