[gcc r14-8228] Fix memory leak in vectorizable_store

[gcc r14-8228] Fix memory leak in vectorizable_store

[Richard Biener]

https://gcc.gnu.org/g:5b421c2a5b429fcebd7ee6444a5677633df0f28a

commit r14-8228-g5b421c2a5b429fcebd7ee6444a5677633df0f28a
Author: Richard Biener <rguenther@suse.de>
Date:   Thu Jan 18 13:04:17 2024 +0100

    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:
---
 gcc/tree-vect-stmts.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gcc/tree-vect-stmts.cc b/gcc/tree-vect-stmts.cc
index cabd4e3ae86..69d76c3b350 100644
--- 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)
     {