From 7b24b675378a69ff254e4a4b5faa3615d4abd84d Mon Sep 17 00:00:00 2001
From: Teresa Johnson <tejohnson@google.com>
Date: Thu, 11 Jul 2013 21:32:14 +0000
Subject: [PATCH] This patch adds a call to ggc_free from va_gc::release, which
 is called by vec_free.

This patch adds a call to ggc_free from va_gc::release, which is
called by vec_free. This restores the functionality of the old VEC_free
and reduces the memory footprint during compilation.

2013-07-11  Teresa Johnson  <tejohnson@google.com>

	* vec.h (struct va_gc): Move release out-of-line.
	(va_gc::release): Call ggc_free on released vec.

From-SVN: r200909
---
 gcc/ChangeLog |  5 +++++
 gcc/vec.h     | 14 +++++++++++++-
 2 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 30f63c4b4da..4454b01a50a 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2013-07-11  Teresa Johnson  <tejohnson@google.com>
+
+	* vec.h (struct va_gc): Move release out-of-line.
+	(va_gc::release): Call ggc_free on released vec.
+
 2013-07-11  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>
 
 	* config/rs6000/rs6000.md (""*tls_gd_low<TLSmode:tls_abi_suffix>"):
diff --git a/gcc/vec.h b/gcc/vec.h
index 3c1bb9a3d6b..09a1d0a4d86 100644
--- a/gcc/vec.h
+++ b/gcc/vec.h
@@ -337,10 +337,22 @@ struct va_gc
 		       CXX_MEM_STAT_INFO);
 
   template<typename T, typename A>
-  static void release (vec<T, A, vl_embed> *&v) { v = NULL; }
+  static void release (vec<T, A, vl_embed> *&v);
 };
 
 
+/* Free GC memory used by V and reset V to NULL.  */
+
+template<typename T, typename A>
+inline void
+va_gc::release (vec<T, A, vl_embed> *&v)
+{
+  if (v)
+    ::ggc_free (v);
+  v = NULL;
+}
+
+
 /* Allocator for GC memory.  Ensure there are at least RESERVE free
    slots in V.  If EXACT is true, grow exactly, else grow
    exponentially.  As a special case, if the vector had not been
-- 
2.30.2