From: Jason Merrill <jason@redhat.com>
Date: Sat, 17 Dec 2011 13:52:02 +0000 (-0500)
Subject: re PR c++/51416 ([c++0x] [4.6/4.7 Regression] ICE with invalid use of auto)
X-Git-Tag: releases/gcc-4.6.3~252
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d634d58b9e43e724d1630a08d0ffb59d6b2739a7;p=thirdparty%2Fgcc.git

re PR c++/51416 ([c++0x] [4.6/4.7 Regression] ICE with invalid use of auto)

	PR c++/51416
	* init.c (build_value_init_noctor): Check for incomplete type.

From-SVN: r182436
---

diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index 6260496830cc..24d2b924a93e 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,3 +1,8 @@
+2011-12-16  Jason Merrill  <jason@redhat.com>
+
+	PR c++/51416
+	* init.c (build_value_init_noctor): Check for incomplete type.
+
 2011-12-16  Jason Merrill  <jason@redhat.com>
 
 	PR c++/51331
diff --git a/gcc/cp/init.c b/gcc/cp/init.c
index 14766b648fbc..091ac73ae1e1 100644
--- a/gcc/cp/init.c
+++ b/gcc/cp/init.c
@@ -370,6 +370,12 @@ build_value_init (tree type, tsubst_flags_t complain)
 tree
 build_value_init_noctor (tree type, tsubst_flags_t complain)
 {
+  if (!COMPLETE_TYPE_P (type))
+    {
+      if (complain & tf_error)
+	error ("value-initialization of incomplete type %qT", type);
+      return error_mark_node;
+    }
   if (CLASS_TYPE_P (type))
     {
       gcc_assert (!TYPE_NEEDS_CONSTRUCTING (type));
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 3bfeedb5a73a..2d37cba75c9f 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2011-12-16  Jason Merrill  <jason@redhat.com>
+
+	PR c++/51416
+	* g++.dg/cpp0x/auto31.C: New.
+
 2011-12-16  Jason Merrill  <jason@redhat.com>
 
 	PR c++/51331
diff --git a/gcc/testsuite/g++.dg/cpp0x/auto31.C b/gcc/testsuite/g++.dg/cpp0x/auto31.C
new file mode 100644
index 000000000000..2c74b72df4a3
--- /dev/null
+++ b/gcc/testsuite/g++.dg/cpp0x/auto31.C
@@ -0,0 +1,12 @@
+// PR c++/51416
+// { dg-options "-std=c++0x" }
+
+template<typename T, typename... U> void foo(T, U... u)
+{
+  auto foo(u...);		// { dg-error "auto" }
+}
+
+void bar()
+{
+  foo(0);
+}
diff --git a/gcc/testsuite/g++.dg/cpp0x/variadic103.C b/gcc/testsuite/g++.dg/cpp0x/variadic103.C
index 6d12331d000d..9d6b5ea20b85 100644
--- a/gcc/testsuite/g++.dg/cpp0x/variadic103.C
+++ b/gcc/testsuite/g++.dg/cpp0x/variadic103.C
@@ -5,7 +5,7 @@ T&& create();
 
 template<class T, class... Args>
 void test() {
-  T t(create<Args>()...);	// { dg-error "unknown bound" }
+  T t(create<Args>()...);	// { dg-error "incomplete" }
   (void) t;
 }