commit 4d303443cc66bf32f3f045014dd22f0e475f0d50
Author: Jeff Law <law@redhat.com>
Date:   Thu Oct 8 14:46:03 2015 -0600

    [PATCH] [3/n] Fix minor SSA_NAME leaks
    
    	* tree-stdarg.c (expand_ifn_va_arg_1): Add missing call to
    	unlink_stmt_vdef and release_ssa_name_fn.

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 64309c1..31e2f30 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,8 @@
 2015-10-08  Jeff Law  <law@redhat.com>
 
+	* tree-stdarg.c (expand_ifn_va_arg_1): Add missing call to
+	unlink_stmt_vdef and release_ssa_name_fn.
+
 	* tree-ssa-dse.c (dse_optimize_stmt): Add missing call to
 	release_defs.
 
diff --git a/gcc/tree-stdarg.c b/gcc/tree-stdarg.c
index d69fa06..3e6d98c 100644
--- a/gcc/tree-stdarg.c
+++ b/gcc/tree-stdarg.c
@@ -1080,6 +1080,8 @@ expand_ifn_va_arg_1 (function *fun)
 
 	/* Remove the IFN_VA_ARG gimple_call.  It's the last stmt in the
 	   bb.  */
+	unlink_stmt_vdef (stmt);
+	release_ssa_name_fn (fun, gimple_vdef (stmt));
 	gsi_remove (&i, true);
 	gcc_assert (gsi_end_p (i));