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: r272801

diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index 881dcfb7af942597e469770100cad7cb2ef89945..fa0f93768ab42cd2025a94a7b991bd440fc9cdc7 100644 (file)
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,3 +1,12 @@
+2019-06-29  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.
+
 2019-06-12  Marek Polacek  <polacek@redhat.com>
 
        PR c++/90825 - endless recursion when evaluating sizeof.

diff --git a/gcc/cp/semantics.c b/gcc/cp/semantics.c
index 3ae9cf050fb8155fa3fb7f60419c26cd7b93d353..6d40b145fcb9fa4e113d37a1646bc51de0b65405 100644 (file)
--- a/gcc/cp/semantics.c
+++ b/gcc/cp/semantics.c
@@ -7774,7 +7774,8 @@ 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 (TYPE_REF_P (TREE_TYPE (t))
+         else if (!processing_template_decl
+                  && TYPE_REF_P (TREE_TYPE (t))
                   && !complete_type_or_else (TREE_TYPE (TREE_TYPE (t)), t))
            remove = true;
        }

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index f4d47bca67c488b38ea092b6531f497c2ea57280..1cf3149e3f053ca40580c562c6112381eee65f4e 100644 (file)
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,6 +1,11 @@
 2019-06-29  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> ();