[Bug other/101984] [12 Regression] gimple-ssa-warn-access memory leak

[msebor at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101984

Martin Sebor <msebor at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Assignee|unassigned at gcc dot gnu.org      |msebor at gcc dot gnu.org
             Status|NEW                         |ASSIGNED

--- Comment #2 from Martin Sebor <msebor at gcc dot gnu.org> ---
Patch I'm testing:

diff --git a/gcc/gimple-ssa-warn-access.cc b/gcc/gimple-ssa-warn-access.cc
index f3efe564af0..4a2dd9ade77 100644
--- a/gcc/gimple-ssa-warn-access.cc
+++ b/gcc/gimple-ssa-warn-access.cc
@@ -3310,12 +3310,16 @@ pass_waccess::check (basic_block bb)
 unsigned
 pass_waccess::execute (function *fun)
 {
+  /* Create a new ranger instance and associate it with FUN.  */
   m_ranger = enable_ranger (fun);

   basic_block bb;
   FOR_EACH_BB_FN (bb, fun)
     check (bb);

+  /* Release the ranger instance and replace it with a global ranger.  */
+  disable_ranger (fun);
+
   return 0;
 }