re PR c++/92524 (ICE in short program with constexpr and std::array)

	PR c++/92524
	* tree.c (replace_placeholders_r): Don't walk constructor elts with
	RANGE_EXPR indexes.

	* g++.dg/cpp0x/pr92524.C: New test.

From-SVN: r278759

gcc/cp/ChangeLog

+2019-11-27  Jakub Jelinek  <jakub@redhat.com>
+
+	PR c++/92524
+	* tree.c (replace_placeholders_r): Don't walk constructor elts with
+	RANGE_EXPR indexes.
+
 2019-11-26  Jason Merrill  <jason@redhat.com>
 
 	* pt.c (tsubst_copy_and_build) [TEMPLATE_ID_EXPR]: Remember the

gcc/cp/tree.c

@@ -3144,6 +3144,11 @@ replace_placeholders_r (tree* t, int* walk_subtrees, void* data_)
 	    tree type = TREE_TYPE (*valp);
 	    tree subob = obj;
 
+	    /* Elements with RANGE_EXPR index shouldn't have any
+	       placeholders in them.  */
+	    if (ce->index && TREE_CODE (ce->index) == RANGE_EXPR)
+	      continue;
+
 	    if (TREE_CODE (*valp) == CONSTRUCTOR
 		&& AGGREGATE_TYPE_P (type))
 	      {

gcc/testsuite/ChangeLog

+2019-11-27  Jakub Jelinek  <jakub@redhat.com>
+
+	PR c++/92524
+	* g++.dg/cpp0x/pr92524.C: New test.
+
 2019-11-27  Richard Biener  <rguenther@suse.de>
 
 	PR tree-optimization/92645

gcc/testsuite/g++.dg/cpp0x/pr92524.C

+// PR c++/92524
+// { dg-do compile { target c++11 } }
+
+struct A { char a = '*'; };
+struct B { A b[64]; };
+
+void
+foo ()
+{
+  A a;
+  B{a};
+}