backport: re PR c++/90950 (OpenMP clause handling rejecting references to incomplete...

	Backported from mainline
	2019-06-21  Jakub Jelinek  <jakub@redhat.com>

	PR c++/90950
	* semantics.c (finish_omp_clauses): Don't reject references to
	incomplete types if processing_template_decl.

	* g++.dg/gomp/lastprivate-1.C: New test.

From-SVN: r275160

diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index bd1e464c107dbb731a06bcb8400520e838009eb0..4f55803a5dc39c4f2656651cadea0af41e15cf5b 100644 (file)
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,6 +1,12 @@
 2019-08-30  Jakub Jelinek  <jakub@redhat.com>
 
        Backported from mainline
+       2019-06-21  Jakub Jelinek  <jakub@redhat.com>
+
+       PR c++/90950
+       * semantics.c (finish_omp_clauses): Don't reject references to
+       incomplete types if processing_template_decl.
+
        2019-05-10  Jakub Jelinek  <jakub@redhat.com>
 
        PR pch/90326

diff --git a/gcc/cp/semantics.c b/gcc/cp/semantics.c
index 6ed0495c33bd2c04ef4c1c07e1d4f1efd8973fbc..694aef52fa0908be5caaa2630e7c35613a5143aa 100644 (file)
--- a/gcc/cp/semantics.c
+++ b/gcc/cp/semantics.c
@@ -7369,7 +7369,8 @@ finish_omp_clauses (tree clauses, enum c_omp_region_type ort)
          t = require_complete_type (t);
          if (t == error_mark_node)
            remove = true;
-         else if (TREE_CODE (TREE_TYPE (t)) == REFERENCE_TYPE
+         else if (!processing_template_decl
+                  && TREE_CODE (TREE_TYPE (t)) == REFERENCE_TYPE
                   && !complete_type_or_else (TREE_TYPE (TREE_TYPE (t)), t))
            remove = true;
        }

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index dcb3634ead0507998fbe1d6a86954a9362b59b9f..5ec7de87a3ec28e37f543cb24f5197ef7cbe3fe4 100644 (file)
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,6 +1,11 @@
 2019-08-30  Jakub Jelinek  <jakub@redhat.com>
 
        Backported from mainline
+       2019-06-21  Jakub Jelinek  <jakub@redhat.com>
+
+       PR c++/90950
+       * g++.dg/gomp/lastprivate-1.C: New test.
+
        2019-06-12  Jakub Jelinek  <jakub@redhat.com>
 
        PR c/90760

diff --git a/gcc/testsuite/g++.dg/gomp/lastprivate-1.C b/gcc/testsuite/g++.dg/gomp/lastprivate-1.C
new file mode 100644 (file)
index 0000000..ce25e1a
--- /dev/null
+++ b/gcc/testsuite/g++.dg/gomp/lastprivate-1.C
@@ -0,0 +1,16 @@
+// PR c++/90950
+// { dg-do compile }
+
+template <typename T>
+T
+foo (void)
+{
+  T y = 0;
+  T &x = y;
+  #pragma omp parallel for lastprivate (x)
+  for (int i = 0; i < 8; ++i)
+    x = i;
+  return x;
+}
+
+int a = foo<int> ();