From: Richard Biener <rguenther@suse.de>
Date: Thu, 18 Jan 2024 12:04:17 +0000 (+0100)
Subject: Fix memory leak in vectorizable_store
X-Git-Tag: basepoints/gcc-15~1911
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=5b421c2a5b429fcebd7ee6444a5677633df0f28a;p=thirdparty%2Fgcc.git

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 cabd4e3ae864..69d76c3b350f 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)
     {