Fix memory leak in vectorizable_store

The following fixes a memory leak in vectorizable_store which happens
because the functions populating gvec_oprnds[i] will call .create ()
on the incoming vector, leaking what we've previously allocated.

	* tree-vect-stmts.cc (vectorizable_store): Do not allocate
	storage for gvec_oprnds elements.

diff --git a/gcc/tree-vect-stmts.cc b/gcc/tree-vect-stmts.cc
index cabd4e3ae86473c4fdaf1315cdbf434914b68b7b..69d76c3b350f6addd3a3d39797ff541f3aaa97de 100644 (file)
--- a/gcc/tree-vect-stmts.cc
+++ b/gcc/tree-vect-stmts.cc
@@ -8772,7 +8772,7 @@ vectorizable_store (vec_info *vinfo,
   tree vec_mask = NULL;
   auto_delete_vec<auto_vec<tree>> gvec_oprnds (group_size);
   for (i = 0; i < group_size; i++)
-    gvec_oprnds.quick_push (new auto_vec<tree> (ncopies));
+    gvec_oprnds.quick_push (new auto_vec<tree> ());
 
   if (memory_access_type == VMAT_LOAD_STORE_LANES)
     {