[PATCH 3/9] Fix leak in gcc/tree-ssa-reassoc.c.

[marxin]

Leak can be seen e.g. here:
gcc reassoc-11.c -fno-diagnostics-show-caret -fdiagnostics-color=never -O2 
-fdump-tree-reassoc1

gcc/ChangeLog:

2016-05-18  Martin Liska  <mli...@suse.cz>

        * tree-ssa-reassoc.c (eliminate_duplicate_pair): Truncate
        an auto_vec instead of re-creating it.
---
 gcc/tree-ssa-reassoc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gcc/tree-ssa-reassoc.c b/gcc/tree-ssa-reassoc.c
index 3b5f36b..81b8977 100644
--- a/gcc/tree-ssa-reassoc.c
+++ b/gcc/tree-ssa-reassoc.c
@@ -732,7 +732,7 @@ eliminate_duplicate_pair (enum tree_code opcode,
 
          if (ops->length () == 2)
            {
-             ops->create (0);
+             ops->truncate (0);
              add_to_ops_vec (ops, build_zero_cst (TREE_TYPE (last->op)));
              *all_done = true;
            }
-- 
2.8.2