* tree.c (build_constructor_va): New.

	* tree.h: Declare it.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@198744 138bc75d-0d04-0410-961f-82ee72b054a4

3 files changed, 27 insertions, 0 deletions

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 34c83ac8558..e16316537bb 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2013-05-09  Jason Merrill  <jason@redhat.com>
+
+	* tree.c (build_constructor_va): New.
+	* tree.h: Declare it.
+
 2013-05-09  Martin Jambor  <mjambor@suse.cz>
 
 	PR lto/57084
diff --git a/gcc/tree.c b/gcc/tree.c
index 444c87673d7..55fa99bd091 100644
--- a/gcc/tree.c
+++ b/gcc/tree.c
@@ -1467,6 +1467,27 @@ build_constructor_from_list (tree type, tree vals)
   return build_constructor (type, v);
 }
 
+/* Return a new CONSTRUCTOR node whose type is TYPE.  NELTS is the number
+   of elements, provided as index/value pairs.  */
+
+tree
+build_constructor_va (tree type, int nelts, ...)
+{
+  vec<constructor_elt, va_gc> *v = NULL;
+  va_list p;
+
+  va_start (p, nelts);
+  vec_alloc (v, nelts);
+  while (nelts--)
+    {
+      tree index = va_arg (p, tree);
+      tree value = va_arg (p, tree);
+      CONSTRUCTOR_APPEND_ELT (v, index, value);
+    }
+  va_end (p);
+  return build_constructor (type, v);
+}
+
 /* Return a new FIXED_CST node whose type is TYPE and value is F.  */
 
 tree
diff --git a/gcc/tree.h b/gcc/tree.h
index 2b6f13b8f12..cd1d7613979 100644
--- a/gcc/tree.h
+++ b/gcc/tree.h
@@ -4763,6 +4763,7 @@ extern tree build_vector_from_val (tree, tree);
 extern tree build_constructor (tree, vec<constructor_elt, va_gc> *);
 extern tree build_constructor_single (tree, tree, tree);
 extern tree build_constructor_from_list (tree, tree);
+extern tree build_constructor_va (tree, int, ...);
 extern tree build_real_from_int_cst (tree, const_tree);
 extern tree build_complex (tree, tree, tree);
 extern tree build_one_cst (tree);