[PATCH] Plug memory leak in attribute target_clones

[Bernhard Reutner-Fischer via Gcc-patches]

It looks like there was some memory leak in the handling
of attribute target_clones, introduced in 5928bc2ec06d .

Ok for trunk if testing passes?

gcc/ChangeLog:

        * multiple_target.cc (expand_target_clones): Free memory.

Signed-off-by: Bernhard Reutner-Fischer <al...@gcc.gnu.org>
---
 gcc/multiple_target.cc | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/gcc/multiple_target.cc b/gcc/multiple_target.cc
index 67866a7c963..77e0f21dd05 100644
--- a/gcc/multiple_target.cc
+++ b/gcc/multiple_target.cc
@@ -390,19 +390,23 @@ expand_target_clones (struct cgraph_node *node, bool 
definition)
   for (i = 0; i < attrnum; i++)
     {
       char *attr = attrs[i];
-      char *suffix = XNEWVEC (char, strlen (attr) + 1);
 
-      create_new_asm_name (attr, suffix);
       /* Create new target clone.  */
       tree attributes = make_attribute ("target", attr,
                                        DECL_ATTRIBUTES (node->decl));
 
+      char *suffix = XNEWVEC (char, strlen (attr) + 1);
+      create_new_asm_name (attr, suffix);
       cgraph_node *new_node = create_target_clone (node, definition, suffix,
                                                   attributes);
+      XDELETEVEC (suffix);
       if (new_node == NULL)
-       return false;
+       {
+         XDELETEVEC (attrs);
+         XDELETEVEC (attr_str);
+         return false;
+       }
       new_node->local = false;
-      XDELETEVEC (suffix);
 
       decl2_v = new_node->function_version ();
       if (decl2_v != NULL)
-- 
2.38.1