From: Jason Merrill <jason@redhat.com>
Date: Fri, 21 Feb 2014 14:01:20 +0000 (-0500)
Subject: re PR c++/60251 ([c++11] ICE capturing variable-length array)
X-Git-Tag: releases/gcc-4.9.0~779
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e429bc3555e7c3cbbc3b03ee0dbf78b3b9a4c198;p=thirdparty%2Fgcc.git

re PR c++/60251 ([c++11] ICE capturing variable-length array)

	PR c++/60251
	* lambda.c (is_normal_capture_proxy): Handle VLA capture.

From-SVN: r207995
---

diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index be248e1f400a..e17576895ed3 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,5 +1,8 @@
 2014-02-21  Jason Merrill  <jason@redhat.com>
 
+	PR c++/60251
+	* lambda.c (is_normal_capture_proxy): Handle VLA capture.
+
 	PR c++/60167
 	PR c++/60222
 	PR c++/58606
diff --git a/gcc/cp/lambda.c b/gcc/cp/lambda.c
index 8bb820d0c3b0..ad993e9d3923 100644
--- a/gcc/cp/lambda.c
+++ b/gcc/cp/lambda.c
@@ -250,6 +250,10 @@ is_normal_capture_proxy (tree decl)
     /* It's not a capture proxy.  */
     return false;
 
+  if (variably_modified_type_p (TREE_TYPE (decl), NULL_TREE))
+    /* VLA capture.  */
+    return true;
+
   /* It is a capture proxy, is it a normal capture?  */
   tree val = DECL_VALUE_EXPR (decl);
   if (val == error_mark_node)
diff --git a/gcc/testsuite/g++.dg/cpp1y/vla11.C b/gcc/testsuite/g++.dg/cpp1y/vla11.C
new file mode 100644
index 000000000000..c9cdadea7ecb
--- /dev/null
+++ b/gcc/testsuite/g++.dg/cpp1y/vla11.C
@@ -0,0 +1,8 @@
+// PR c++/60251
+// { dg-options "-std=c++1y -pedantic-errors" }
+
+void foo(int n)
+{
+  int x[n];
+  [&x]() { decltype(x) y; }; // { dg-error "decltype of array of runtime bound" }
+}