Successfully bootstrapped & regrtested on x86_64-pc-linux-gnu.

I can self-approve this, but it requires the patch adding make-unique.h
as a prerequisite.

gcc/analyzer/ChangeLog:
        * call-info.cc: Add define of INCLUDE_MEMORY.
        * call-summary.cc: Likewise.
        * checker-path.cc: Likewise.
        * constraint-manager.cc: Likewise.
        * diagnostic-manager.cc: Likewise.
        (saved_diagnostic::saved_diagnostic): Use std::unique_ptr for
        param d and field m_d.
        (saved_diagnostic::~saved_diagnostic): Remove explicit delete of m_d.
        (saved_diagnostic::add_note): Use std::unique_ptr for
        param pn.
        (saved_diagnostic::get_pending_diagnostic): Update for conversion
        of m_sd.m_d to unique_ptr.
        (diagnostic_manager::add_diagnostic): Use std::unique_ptr for
        param d.  Remove explicit deletion.
        (diagnostic_manager::add_note): Use std::unique_ptr for param pn.
        (diagnostic_manager::emit_saved_diagnostic): Update for conversion
        of m_sd.m_d to unique_ptr.
        (null_assignment_sm_context::warn): Use std::unique_ptr for
        param d.  Remove explicit deletion.
        * diagnostic-manager.h (saved_diagnostic::saved_diagnostic): Use
        std::unique_ptr for param d.
        (saved_diagnostic::add_note): Likewise for param pn.
        (saved_diagnostic::m_d): Likewise.
        (diagnostic_manager::add_diagnostic): Use std::unique_ptr for
        param d.
        (diagnostic_manager::add_note): Use std::unique_ptr for param pn.
        * engine.cc: Include "make-unique.h".
        (impl_region_model_context::warn): Update to use std::unique_ptr
        for param, removing explicit deletion.
        (impl_region_model_context::add_note): Likewise.
        (impl_sm_context::warn): Update to use std::unique_ptr
        for param.
        (impl_region_model_context::on_state_leak): Likewise for result of
        on_leak.
        (exploded_node::on_longjmp): Use make_unique when creating
        pending_diagnostic.
        (exploded_graph::process_node): Likewise.
        * exploded-graph.h (impl_region_model_context::warn): Update to
        use std::unique_ptr for param.
        (impl_region_model_context::add_note): Likewise.
        * feasible-graph.cc: Add define of INCLUDE_MEMORY.
        * pending-diagnostic.cc: Likewise.
        * pending-diagnostic.h: Include analyzer.sm.h"
        * program-point.cc: Add define of INCLUDE_MEMORY.
        * program-state.cc: Likewise.
        * region-model-asm.cc: Likewise.
        * region-model-impl-calls.cc: Likewise.  Include "make-unique.h".
        (region_model::impl_call_putenv): Use make_unique when creating
        pending_diagnostic.
        * region-model-manager.cc: Add define of INCLUDE_MEMORY.
        * region-model-reachability.cc: Likewise.
        * region-model.cc: Likewise.  Include "make-unique.h".
        (region_model::get_gassign_result): Use make_unique when creating
        pending_diagnostic.
        (region_model::check_for_poison): Likewise.
        (region_model::on_stmt_pre): Likewise.
        (region_model::check_symbolic_bounds): Likewise.
        (region_model::check_region_bounds): Likewise.
        (annotating_ctxt: make_note): Use std::unique_ptr for result.
        (region_model::deref_rvalue): Use make_unique when creating
        pending_diagnostic.
        (region_model::check_for_writable_region): Likewise.
        (region_model::check_region_size): Likewise.
        (region_model::check_dynamic_size_for_floats): Likewise.
        (region_model::maybe_complain_about_infoleak): Likewise.
        (noop_region_model_context::add_note): Use std::unique_ptr for
        param.  Remove explicit deletion.
        * region-model.h: Include "analyzer/pending-diagnostic.h".
        (region_model_context::warn): Convert param to std::unique_ptr.
        (region_model_context::add_note): Likewise.
        (noop_region_model_context::warn): Likewise.
        (noop_region_model_context::add_note): Likewise.
        (region_model_context_decorator::warn): Likewise.
        (region_model_context_decorator::add_note): Likewise.
        (note_adding_context::warn): Likewise.
        (note_adding_context::make_note): Likewise for return type.
        (test_region_model_context::warn): Convert param to
        std::unique_ptr.
        * region.cc: Add define of INCLUDE_MEMORY.
        * sm-fd.cc: Likewise.  Include "make-unique.h".
        (fd_state_machine::check_for_fd_attrs): Use make_unique when
        creating pending_diagnostics.
        (fd_state_machine::on_open): Likewise.
        (fd_state_machine::on_creat): Likewise.
        (fd_state_machine::check_for_dup): Likewise.
        (fd_state_machine::on_close): Likewise.
        (fd_state_machine::check_for_open_fd): Likewise.
        (fd_state_machine::on_leak): Likewise, converting return type to
        std::unique_ptr.
        * sm-file.cc: Add define of INCLUDE_MEMORY.  Include
        "make-unique.h".
        (fileptr_state_machine::on_stmt): Use make_unique when creating
        pending_diagnostic.
        (fileptr_state_machine::on_leak): Likewise, converting return type
        to std::unique_ptr.
        * sm-malloc.cc: Add define of INCLUDE_MEMORY.  Include
        "make-unique.h".
        (malloc_state_machine::on_stmt): Use make_unique when creating
        pending_diagnostic.
        (malloc_state_machine::handle_free_of_non_heap): Likewise.
        (malloc_state_machine::on_deallocator_call): Likewise.
        (malloc_state_machine::on_realloc_call): Likewise.
        (malloc_state_machine::on_leak): Likewise, converting return type
        to std::unique_ptr.
        * sm-pattern-test.cc: Add define of INCLUDE_MEMORY.  Include
        "make-unique.h".
        (pattern_test_state_machine::on_condition): Use make_unique when
        creating pending_diagnostic.
        * sm-sensitive.cc: Add define of INCLUDE_MEMORY.  Include
        "make-unique.h".
        (sensitive_state_machine::warn_for_any_exposure): Use make_unique
        when creating pending_diagnostic.
        * sm-signal.cc: Add define of INCLUDE_MEMORY.  Include
        "make-unique.h".
        (signal_state_machine::on_stmt): Use make_unique when creating
        pending_diagnostic.
        * sm-taint.cc: Add define of INCLUDE_MEMORY.  Include
        "make-unique.h".
        (taint_state_machine::check_for_tainted_size_arg): Use make_unique
        when creating pending_diagnostic.
        (taint_state_machine::check_for_tainted_divisor): Likewise.
        (region_model::check_region_for_taint): Likewise.
        (region_model::check_dynamic_size_for_taint): Likewise.
        * sm.cc: Add define of INCLUDE_MEMORY.  Include
        "analyzer/pending-diagnostic.h".
        (state_machine::on_leak): Move here from sm.h, changing return
        type to std::unique_ptr.
        * sm.h (state_machine::on_leak): Change return type to
        std::unique_ptr.  Move defn of base impl to sm.cc
        (sm_context::warn): Convert param d to std_unique_ptr.
        * state-purge.cc: Add define of INCLUDE_MEMORY.
        * store.cc: Likewise.
        * svalue.cc: Likewise.
        * trimmed-graph.cc: Likewise.
        * varargs.cc: Likewise.  Include "make-unique.h".
        (va_list_state_machine::check_for_ended_va_list): Use make_unique
        when creating pending_diagnostic.
        (va_list_state_machine::on_leak): Likewise, converting return type
        to std::unique_ptr.
        (region_model::impl_call_va_arg): Use make_unique when creating
        pending_diagnostic.

gcc/testsuite/ChangeLog:
        * gcc.dg/plugin/analyzer_gil_plugin.c: Add define of
        INCLUDE_MEMORY.  Include "make-unique.h".
        (gil_state_machine::check_for_pyobject_in_call): Use make_unique
        when creating pending_diagnostic.
        (gil_state_machine::on_stmt): Likewise.
        (gil_state_machine::check_for_pyobject_usage_without_gil): Likewise.
        * gcc.dg/plugin/analyzer_kernel_plugin.c: : Add define of
        INCLUDE_MEMORY.
        * gcc.dg/plugin/analyzer_known_fns_plugin.c: Likewise.

Signed-off-by: David Malcolm <dmalc...@redhat.com>
---
 gcc/analyzer/call-info.cc                     |  1 +
 gcc/analyzer/call-summary.cc                  |  1 +
 gcc/analyzer/checker-path.cc                  |  1 +
 gcc/analyzer/constraint-manager.cc            |  1 +
 gcc/analyzer/diagnostic-manager.cc            | 40 ++++-----
 gcc/analyzer/diagnostic-manager.h             | 12 +--
 gcc/analyzer/engine.cc                        | 41 +++++----
 gcc/analyzer/exploded-graph.h                 |  4 +-
 gcc/analyzer/feasible-graph.cc                |  1 +
 gcc/analyzer/pending-diagnostic.cc            |  1 +
 gcc/analyzer/pending-diagnostic.h             |  1 +
 gcc/analyzer/program-point.cc                 |  1 +
 gcc/analyzer/program-state.cc                 |  1 +
 gcc/analyzer/region-model-asm.cc              |  1 +
 gcc/analyzer/region-model-impl-calls.cc       |  4 +-
 gcc/analyzer/region-model-manager.cc          |  1 +
 gcc/analyzer/region-model-reachability.cc     |  1 +
 gcc/analyzer/region-model.cc                  | 87 +++++++++++--------
 gcc/analyzer/region-model.h                   | 31 +++----
 gcc/analyzer/region.cc                        |  1 +
 gcc/analyzer/sm-fd.cc                         | 58 ++++++++-----
 gcc/analyzer/sm-file.cc                       | 10 ++-
 gcc/analyzer/sm-malloc.cc                     | 53 +++++------
 gcc/analyzer/sm-pattern-test.cc               |  6 +-
 gcc/analyzer/sm-sensitive.cc                  |  5 +-
 gcc/analyzer/sm-signal.cc                     |  6 +-
 gcc/analyzer/sm-taint.cc                      | 22 +++--
 gcc/analyzer/sm.cc                            | 10 +++
 gcc/analyzer/sm.h                             | 12 +--
 gcc/analyzer/state-purge.cc                   |  1 +
 gcc/analyzer/store.cc                         |  1 +
 gcc/analyzer/svalue.cc                        |  1 +
 gcc/analyzer/trimmed-graph.cc                 |  1 +
 gcc/analyzer/varargs.cc                       | 24 ++---
 .../gcc.dg/plugin/analyzer_gil_plugin.c       | 12 +--
 .../gcc.dg/plugin/analyzer_kernel_plugin.c    |  1 +
 .../gcc.dg/plugin/analyzer_known_fns_plugin.c |  1 +
 37 files changed, 266 insertions(+), 190 deletions(-)

diff --git a/gcc/analyzer/call-info.cc b/gcc/analyzer/call-info.cc
index 56059ac5cf4..3572e06d14b 100644
--- a/gcc/analyzer/call-info.cc
+++ b/gcc/analyzer/call-info.cc
@@ -19,6 +19,7 @@ along with GCC; see the file COPYING3.  If not see
 <http://www.gnu.org/licenses/>.  */
 
 #include "config.h"
+#define INCLUDE_MEMORY
 #include "system.h"
 #include "coretypes.h"
 #include "tree.h"
diff --git a/gcc/analyzer/call-summary.cc b/gcc/analyzer/call-summary.cc
index 12ef82d18d6..ebc7b5028ec 100644
--- a/gcc/analyzer/call-summary.cc
+++ b/gcc/analyzer/call-summary.cc
@@ -18,6 +18,7 @@ along with GCC; see the file COPYING3.  If not see
 <http://www.gnu.org/licenses/>.  */
 
 #include "config.h"
+#define INCLUDE_MEMORY
 #include "system.h"
 #include "coretypes.h"
 #include "tree.h"
diff --git a/gcc/analyzer/checker-path.cc b/gcc/analyzer/checker-path.cc
index 371111b288d..4cf28c2af86 100644
--- a/gcc/analyzer/checker-path.cc
+++ b/gcc/analyzer/checker-path.cc
@@ -19,6 +19,7 @@ along with GCC; see the file COPYING3.  If not see
 <http://www.gnu.org/licenses/>.  */
 
 #include "config.h"
+#define INCLUDE_MEMORY
 #include "system.h"
 #include "coretypes.h"
 #include "tree.h"
diff --git a/gcc/analyzer/constraint-manager.cc 
b/gcc/analyzer/constraint-manager.cc
index 96ae0738419..b4e51b08943 100644
--- a/gcc/analyzer/constraint-manager.cc
+++ b/gcc/analyzer/constraint-manager.cc
@@ -19,6 +19,7 @@ along with GCC; see the file COPYING3.  If not see
 <http://www.gnu.org/licenses/>.  */
 
 #include "config.h"
+#define INCLUDE_MEMORY
 #include "system.h"
 #include "coretypes.h"
 #include "tree.h"
diff --git a/gcc/analyzer/diagnostic-manager.cc 
b/gcc/analyzer/diagnostic-manager.cc
index 695bde5bee1..0444e52258c 100644
--- a/gcc/analyzer/diagnostic-manager.cc
+++ b/gcc/analyzer/diagnostic-manager.cc
@@ -19,6 +19,7 @@ along with GCC; see the file COPYING3.  If not see
 <http://www.gnu.org/licenses/>.  */
 
 #include "config.h"
+#define INCLUDE_MEMORY
 #include "system.h"
 #include "coretypes.h"
 #include "tree.h"
@@ -638,14 +639,14 @@ saved_diagnostic::saved_diagnostic (const state_machine 
*sm,
                                    tree var,
                                    const svalue *sval,
                                    state_machine::state_t state,
-                                   pending_diagnostic *d,
+                                   std::unique_ptr<pending_diagnostic> d,
                                    unsigned idx)
 : m_sm (sm), m_enode (enode), m_snode (snode), m_stmt (stmt),
  /* stmt_finder could be on-stack; we want our own copy that can
     outlive that.  */
   m_stmt_finder (stmt_finder ? stmt_finder->clone () : NULL),
   m_var (var), m_sval (sval), m_state (state),
-  m_d (d), m_trailing_eedge (NULL),
+  m_d (std::move (d)), m_trailing_eedge (NULL),
   m_idx (idx),
   m_best_epath (NULL), m_problem (NULL),
   m_notes ()
@@ -662,7 +663,6 @@ saved_diagnostic::saved_diagnostic (const state_machine *sm,
 saved_diagnostic::~saved_diagnostic ()
 {
   delete m_stmt_finder;
-  delete m_d;
   delete m_best_epath;
   delete m_problem;
 }
@@ -689,10 +689,10 @@ saved_diagnostic::operator== (const saved_diagnostic 
&other) const
 /* Add PN to this diagnostic, taking ownership of it.  */
 
 void
-saved_diagnostic::add_note (pending_note *pn)
+saved_diagnostic::add_note (std::unique_ptr<pending_note> pn)
 {
   gcc_assert (pn);
-  m_notes.safe_push (pn);
+  m_notes.safe_push (pn.release ());
 }
 
 /* Return a new json::object of the form
@@ -896,7 +896,7 @@ public:
 
   pending_diagnostic *get_pending_diagnostic () const
   {
-    return m_sd.m_d;
+    return m_sd.m_d.get ();
   }
 
   bool reachable_from_p (const exploded_node *src_enode) const
@@ -955,8 +955,7 @@ diagnostic_manager::diagnostic_manager (logger *logger, 
engine *eng,
 }
 
 /* Queue pending_diagnostic D at ENODE for later emission.
-   Return true/false signifying if the diagnostic was actually added.
-   Take ownership of D (or delete it).  */
+   Return true/false signifying if the diagnostic was actually added.  */
 
 bool
 diagnostic_manager::add_diagnostic (const state_machine *sm,
@@ -966,7 +965,7 @@ diagnostic_manager::add_diagnostic (const state_machine *sm,
                                    tree var,
                                    const svalue *sval,
                                    state_machine::state_t state,
-                                   pending_diagnostic *d)
+                                   std::unique_ptr<pending_diagnostic> d)
 {
   LOG_FUNC (get_logger ());
 
@@ -987,7 +986,6 @@ diagnostic_manager::add_diagnostic (const state_machine *sm,
          if (get_logger ())
            get_logger ()->log ("rejecting disabled warning %qs",
                                d->get_kind ());
-         delete d;
          m_num_disabled_diagnostics++;
          return false;
        }
@@ -995,13 +993,13 @@ diagnostic_manager::add_diagnostic (const state_machine 
*sm,
 
   saved_diagnostic *sd
     = new saved_diagnostic (sm, enode, snode, stmt, finder, var, sval,
-                           state, d, m_saved_diagnostics.length ());
+                           state, std::move (d), m_saved_diagnostics.length 
());
   m_saved_diagnostics.safe_push (sd);
   enode->add_diagnostic (sd);
   if (get_logger ())
     log ("adding saved diagnostic %i at SN %i to EN %i: %qs",
         sd->get_index (),
-        snode->m_index, enode->m_index, d->get_kind ());
+        snode->m_index, enode->m_index, sd->m_d->get_kind ());
   return true;
 }
 
@@ -1013,17 +1011,17 @@ bool
 diagnostic_manager::add_diagnostic (exploded_node *enode,
                                    const supernode *snode, const gimple *stmt,
                                    stmt_finder *finder,
-                                   pending_diagnostic *d)
+                                   std::unique_ptr<pending_diagnostic> d)
 {
   gcc_assert (enode);
   return add_diagnostic (NULL, enode, snode, stmt, finder, NULL_TREE,
-                        NULL, 0, d);
+                        NULL, 0, std::move (d));
 }
 
 /* Add PN to the most recent saved_diagnostic.  */
 
 void
-diagnostic_manager::add_note (pending_note *pn)
+diagnostic_manager::add_note (std::unique_ptr<pending_note> pn)
 {
   LOG_FUNC (get_logger ());
   gcc_assert (pn);
@@ -1031,7 +1029,7 @@ diagnostic_manager::add_note (pending_note *pn)
   /* Get most recent saved_diagnostic.  */
   gcc_assert (m_saved_diagnostics.length () > 0);
   saved_diagnostic *sd = m_saved_diagnostics[m_saved_diagnostics.length () - 
1];
-  sd->add_note (pn);
+  sd->add_note (std::move (pn));
 }
 
 /* Return a new json::object of the form
@@ -1386,13 +1384,13 @@ diagnostic_manager::emit_saved_diagnostic (const 
exploded_graph &eg,
 
   emission_path.inject_any_inlined_call_events (get_logger ());
 
-  emission_path.prepare_for_emission (sd.m_d);
+  emission_path.prepare_for_emission (sd.m_d.get ());
 
   location_t loc
     = get_emission_location (sd.m_stmt, sd.m_snode->m_fun, *sd.m_d);
 
   /* Allow the pending_diagnostic to fix up the locations of events.  */
-  emission_path.fixup_locations (sd.m_d);
+  emission_path.fixup_locations (sd.m_d.get ());
 
   gcc_rich_location rich_loc (loc);
   rich_loc.set_path (&emission_path);
@@ -1783,14 +1781,12 @@ struct null_assignment_sm_context : public sm_context
   }
 
   void warn (const supernode *, const gimple *,
-            tree, pending_diagnostic *d) final override
+            tree, std::unique_ptr<pending_diagnostic>) final override
   {
-    delete d;
   }
   void warn (const supernode *, const gimple *,
-            const svalue *, pending_diagnostic *d) final override
+            const svalue *, std::unique_ptr<pending_diagnostic>) final override
   {
-    delete d;
   }
 
   tree get_diagnostic_tree (tree expr) final override
diff --git a/gcc/analyzer/diagnostic-manager.h 
b/gcc/analyzer/diagnostic-manager.h
index 266eed8f9cb..fdab038d7a1 100644
--- a/gcc/analyzer/diagnostic-manager.h
+++ b/gcc/analyzer/diagnostic-manager.h
@@ -36,13 +36,13 @@ public:
                    stmt_finder *stmt_finder,
                    tree var, const svalue *sval,
                    state_machine::state_t state,
-                   pending_diagnostic *d,
+                   std::unique_ptr<pending_diagnostic> d,
                    unsigned idx);
   ~saved_diagnostic ();
 
   bool operator== (const saved_diagnostic &other) const;
 
-  void add_note (pending_note *pn);
+  void add_note (std::unique_ptr<pending_note> pn);
 
   json::object *to_json () const;
 
@@ -76,7 +76,7 @@ public:
   tree m_var;
   const svalue *m_sval;
   state_machine::state_t m_state;
-  pending_diagnostic *m_d; // owned
+  std::unique_ptr<pending_diagnostic> m_d;
   const exploded_edge *m_trailing_eedge;
 
 private:
@@ -117,14 +117,14 @@ public:
                       tree var,
                       const svalue *sval,
                       state_machine::state_t state,
-                      pending_diagnostic *d);
+                      std::unique_ptr<pending_diagnostic> d);
 
   bool add_diagnostic (exploded_node *enode,
                       const supernode *snode, const gimple *stmt,
                       stmt_finder *finder,
-                      pending_diagnostic *d);
+                      std::unique_ptr<pending_diagnostic> d);
 
-  void add_note (pending_note *pn);
+  void add_note (std::unique_ptr<pending_note> pn);
 
   void emit_saved_diagnostics (const exploded_graph &eg);
 
diff --git a/gcc/analyzer/engine.cc b/gcc/analyzer/engine.cc
index 46bcaeda837..3d191adf30d 100644
--- a/gcc/analyzer/engine.cc
+++ b/gcc/analyzer/engine.cc
@@ -22,6 +22,7 @@ along with GCC; see the file COPYING3.  If not see
 #define INCLUDE_MEMORY
 #include "system.h"
 #include "coretypes.h"
+#include "make-unique.h"
 #include "tree.h"
 #include "fold-const.h"
 #include "gcc-rich-location.h"
@@ -114,35 +115,29 @@ impl_region_model_context (program_state *state,
 }
 
 bool
-impl_region_model_context::warn (pending_diagnostic *d)
+impl_region_model_context::warn (std::unique_ptr<pending_diagnostic> d)
 {
   LOG_FUNC (get_logger ());
   if (m_stmt == NULL && m_stmt_finder == NULL)
     {
       if (get_logger ())
        get_logger ()->log ("rejecting diagnostic: no stmt");
-      delete d;
       return false;
     }
   if (m_eg)
     return m_eg->get_diagnostic_manager ().add_diagnostic
       (m_enode_for_diag, m_enode_for_diag->get_supernode (),
-       m_stmt, m_stmt_finder, d);
+       m_stmt, m_stmt_finder, std::move (d));
   else
-    {
-      delete d;
-      return false;
-    }
+    return false;
 }
 
 void
-impl_region_model_context::add_note (pending_note *pn)
+impl_region_model_context::add_note (std::unique_ptr<pending_note> pn)
 {
   LOG_FUNC (get_logger ());
   if (m_eg)
-    m_eg->get_diagnostic_manager ().add_note (pn);
-  else
-    delete pn;
+    m_eg->get_diagnostic_manager ().add_note (std::move (pn));
 }
 
 void
@@ -415,10 +410,11 @@ public:
   }
 
   void warn (const supernode *snode, const gimple *stmt,
-            tree var, pending_diagnostic *d) final override
+            tree var,
+            std::unique_ptr<pending_diagnostic> d) final override
   {
     LOG_FUNC (get_logger ());
-    gcc_assert (d); // take ownership
+    gcc_assert (d);
     impl_region_model_context old_ctxt
       (m_eg, m_enode_for_diag, m_old_state, m_new_state, NULL, NULL, NULL);
 
@@ -430,14 +426,15 @@ public:
         : m_old_smap->get_global_state ());
     m_eg.get_diagnostic_manager ().add_diagnostic
       (&m_sm, m_enode_for_diag, snode, stmt, m_stmt_finder,
-       var, var_old_sval, current, d);
+       var, var_old_sval, current, std::move (d));
   }
 
   void warn (const supernode *snode, const gimple *stmt,
-            const svalue *sval, pending_diagnostic *d) final override
+            const svalue *sval,
+            std::unique_ptr<pending_diagnostic> d) final override
   {
     LOG_FUNC (get_logger ());
-    gcc_assert (d); // take ownership
+    gcc_assert (d);
     impl_region_model_context old_ctxt
       (m_eg, m_enode_for_diag, m_old_state, m_new_state, NULL, NULL, NULL);
 
@@ -447,7 +444,7 @@ public:
         : m_old_smap->get_global_state ());
     m_eg.get_diagnostic_manager ().add_diagnostic
       (&m_sm, m_enode_for_diag, snode, stmt, m_stmt_finder,
-       NULL_TREE, sval, current, d);
+       NULL_TREE, sval, current, std::move (d));
   }
 
   /* Hook for picking more readable trees for SSA names of temporaries,
@@ -878,12 +875,12 @@ impl_region_model_context::on_state_leak (const 
state_machine &sm,
     }
 
   tree leaked_tree_for_diag = fixup_tree_for_diagnostic (leaked_tree);
-  pending_diagnostic *pd = sm.on_leak (leaked_tree_for_diag);
+  std::unique_ptr<pending_diagnostic> pd = sm.on_leak (leaked_tree_for_diag);
   if (pd)
     m_eg->get_diagnostic_manager ().add_diagnostic
       (&sm, m_enode_for_diag, m_enode_for_diag->get_supernode (),
        m_stmt, &stmt_finder,
-       leaked_tree_for_diag, sval, state, pd);
+       leaked_tree_for_diag, sval, state, std::move (pd));
 }
 
 /* Implementation of region_model_context::on_condition vfunc.
@@ -1859,7 +1856,9 @@ exploded_node::on_longjmp (exploded_graph &eg,
   /* Verify that the setjmp's call_stack hasn't been popped.  */
   if (!valid_longjmp_stack_p (longjmp_point, setjmp_point))
     {
-      ctxt->warn (new stale_jmp_buf (setjmp_call, longjmp_call, setjmp_point));
+      ctxt->warn (make_unique<stale_jmp_buf> (setjmp_call,
+                                             longjmp_call,
+                                             setjmp_point));
       return;
     }
 
@@ -4257,7 +4256,7 @@ exploded_graph::process_node (exploded_node *node)
                        const svalue *fn_ptr_sval
                          = model->get_rvalue (fn_ptr, &ctxt);
                        if (fn_ptr_sval->all_zeroes_p ())
-                         ctxt.warn (new jump_through_null (call));
+                         ctxt.warn (make_unique<jump_through_null> (call));
                      }
 
                    /* An unknown function or a special function was called
diff --git a/gcc/analyzer/exploded-graph.h b/gcc/analyzer/exploded-graph.h
index 11e46cab160..3455a445b01 100644
--- a/gcc/analyzer/exploded-graph.h
+++ b/gcc/analyzer/exploded-graph.h
@@ -56,8 +56,8 @@ class impl_region_model_context : public region_model_context
                             uncertainty_t *uncertainty,
                             logger *logger = NULL);
 
-  bool warn (pending_diagnostic *d) final override;
-  void add_note (pending_note *pn) final override;
+  bool warn (std::unique_ptr<pending_diagnostic> d) final override;
+  void add_note (std::unique_ptr<pending_note> pn) final override;
   void on_svalue_leak (const svalue *) override;
   void on_liveness_change (const svalue_set &live_svalues,
                           const region_model *model) final override;
diff --git a/gcc/analyzer/feasible-graph.cc b/gcc/analyzer/feasible-graph.cc
index a946e4c5a35..c5b0d620243 100644
--- a/gcc/analyzer/feasible-graph.cc
+++ b/gcc/analyzer/feasible-graph.cc
@@ -19,6 +19,7 @@ along with GCC; see the file COPYING3.  If not see
 <http://www.gnu.org/licenses/>.  */
 
 #include "config.h"
+#define INCLUDE_MEMORY
 #include "system.h"
 #include "coretypes.h"
 #include "tree.h"
diff --git a/gcc/analyzer/pending-diagnostic.cc 
b/gcc/analyzer/pending-diagnostic.cc
index 50a8afc6afd..a21c86f37b5 100644
--- a/gcc/analyzer/pending-diagnostic.cc
+++ b/gcc/analyzer/pending-diagnostic.cc
@@ -19,6 +19,7 @@ along with GCC; see the file COPYING3.  If not see
 <http://www.gnu.org/licenses/>.  */
 
 #include "config.h"
+#define INCLUDE_MEMORY
 #include "system.h"
 #include "coretypes.h"
 #include "tree.h"
diff --git a/gcc/analyzer/pending-diagnostic.h 
b/gcc/analyzer/pending-diagnostic.h
index 4ea469e1879..6ca8ab9f4aa 100644
--- a/gcc/analyzer/pending-diagnostic.h
+++ b/gcc/analyzer/pending-diagnostic.h
@@ -22,6 +22,7 @@ along with GCC; see the file COPYING3.  If not see
 #define GCC_ANALYZER_PENDING_DIAGNOSTIC_H
 
 #include "diagnostic-path.h"
+#include "analyzer/sm.h"
 
 namespace ana {
 
diff --git a/gcc/analyzer/program-point.cc b/gcc/analyzer/program-point.cc
index cfa4dda14df..23635a18de1 100644
--- a/gcc/analyzer/program-point.cc
+++ b/gcc/analyzer/program-point.cc
@@ -19,6 +19,7 @@ along with GCC; see the file COPYING3.  If not see
 <http://www.gnu.org/licenses/>.  */
 
 #include "config.h"
+#define INCLUDE_MEMORY
 #include "system.h"
 #include "coretypes.h"
 #include "tree.h"
diff --git a/gcc/analyzer/program-state.cc b/gcc/analyzer/program-state.cc
index 7537dc03e41..d00fd5ebe0b 100644
--- a/gcc/analyzer/program-state.cc
+++ b/gcc/analyzer/program-state.cc
@@ -19,6 +19,7 @@ along with GCC; see the file COPYING3.  If not see
 <http://www.gnu.org/licenses/>.  */
 
 #include "config.h"
+#define INCLUDE_MEMORY
 #include "system.h"
 #include "coretypes.h"
 #include "tree.h"
diff --git a/gcc/analyzer/region-model-asm.cc b/gcc/analyzer/region-model-asm.cc
index b4c1f9195ec..171b2496f58 100644
--- a/gcc/analyzer/region-model-asm.cc
+++ b/gcc/analyzer/region-model-asm.cc
@@ -19,6 +19,7 @@ along with GCC; see the file COPYING3.  If not see
 <http://www.gnu.org/licenses/>.  */
 
 #include "config.h"
+#define INCLUDE_MEMORY
 #include "system.h"
 #include "coretypes.h"
 #include "tree.h"
diff --git a/gcc/analyzer/region-model-impl-calls.cc 
b/gcc/analyzer/region-model-impl-calls.cc
index 8f4940a4d55..796556e4082 100644
--- a/gcc/analyzer/region-model-impl-calls.cc
+++ b/gcc/analyzer/region-model-impl-calls.cc
@@ -19,6 +19,7 @@ along with GCC; see the file COPYING3.  If not see
 <http://www.gnu.org/licenses/>.  */
 
 #include "config.h"
+#define INCLUDE_MEMORY
 #include "system.h"
 #include "coretypes.h"
 #include "tree.h"
@@ -54,6 +55,7 @@ along with GCC; see the file COPYING3.  If not see
 #include "diagnostic-path.h"
 #include "analyzer/pending-diagnostic.h"
 #include "gimple-pretty-print.h"
+#include "make-unique.h"
 
 #if ENABLE_ANALYZER
 
@@ -675,7 +677,7 @@ region_model::impl_call_putenv (const call_details &cd)
       break;
     case MEMSPACE_STACK:
       if (ctxt)
-       ctxt->warn (new putenv_of_auto_var (fndecl, reg));
+       ctxt->warn (make_unique<putenv_of_auto_var> (fndecl, reg));
       break;
     }
 }
diff --git a/gcc/analyzer/region-model-manager.cc 
b/gcc/analyzer/region-model-manager.cc
index f5999e64d01..de01627bdb6 100644
--- a/gcc/analyzer/region-model-manager.cc
+++ b/gcc/analyzer/region-model-manager.cc
@@ -19,6 +19,7 @@ along with GCC; see the file COPYING3.  If not see
 <http://www.gnu.org/licenses/>.  */
 
 #include "config.h"
+#define INCLUDE_MEMORY
 #include "system.h"
 #include "coretypes.h"
 #include "tree.h"
diff --git a/gcc/analyzer/region-model-reachability.cc 
b/gcc/analyzer/region-model-reachability.cc
index be1372c9e80..6d2711a0181 100644
--- a/gcc/analyzer/region-model-reachability.cc
+++ b/gcc/analyzer/region-model-reachability.cc
@@ -19,6 +19,7 @@ along with GCC; see the file COPYING3.  If not see
 <http://www.gnu.org/licenses/>.  */
 
 #include "config.h"
+#define INCLUDE_MEMORY
 #include "system.h"
 #include "coretypes.h"
 #include "tree.h"
diff --git a/gcc/analyzer/region-model.cc b/gcc/analyzer/region-model.cc
index 81ef41edee4..10a96d28086 100644
--- a/gcc/analyzer/region-model.cc
+++ b/gcc/analyzer/region-model.cc
@@ -22,6 +22,7 @@ along with GCC; see the file COPYING3.  If not see
 #define INCLUDE_MEMORY
 #include "system.h"
 #include "coretypes.h"
+#include "make-unique.h"
 #include "tree.h"
 #include "function.h"
 #include "basic-block.h"
@@ -813,14 +814,17 @@ region_model::get_gassign_result (const gassign *assign,
              if (TREE_CODE (rhs2_cst) == INTEGER_CST)
                {
                  if (tree_int_cst_sgn (rhs2_cst) < 0)
-                   ctxt->warn (new shift_count_negative_diagnostic
-                                 (assign, rhs2_cst));
+                   ctxt->warn
+                     (make_unique<shift_count_negative_diagnostic>
+                        (assign, rhs2_cst));
                  else if (compare_tree_int (rhs2_cst,
                                             TYPE_PRECISION (TREE_TYPE (rhs1)))
                           >= 0)
-                   ctxt->warn (new shift_count_overflow_diagnostic
-                                 (assign, TYPE_PRECISION (TREE_TYPE (rhs1)),
-                                  rhs2_cst));
+                   ctxt->warn
+                     (make_unique<shift_count_overflow_diagnostic>
+                        (assign,
+                         int (TYPE_PRECISION (TREE_TYPE (rhs1))),
+                         rhs2_cst));
                }
          }
 
@@ -1038,8 +1042,9 @@ region_model::check_for_poison (const svalue *sval,
       const region *src_region = NULL;
       if (pkind == POISON_KIND_UNINIT)
        src_region = get_region_for_poisoned_expr (expr);
-      if (ctxt->warn (new poisoned_value_diagnostic (diag_arg, pkind,
-                                                    src_region)))
+      if (ctxt->warn (make_unique<poisoned_value_diagnostic> (diag_arg,
+                                                             pkind,
+                                                             src_region)))
        {
          /* We only want to report use of a poisoned value at the first
             place it gets used; return an unknown value to avoid generating
@@ -1228,7 +1233,7 @@ region_model::on_stmt_pre (const gimple *stmt,
          {
            /* Handle the builtin "__analyzer_dump_path" by queuing a
               diagnostic at this exploded_node.  */
-           ctxt->warn (new dump_path_diagnostic ());
+           ctxt->warn (make_unique<dump_path_diagnostic> ());
          }
        else if (is_special_named_call_p (call, "__analyzer_dump_region_model",
                                          0))
@@ -1784,16 +1789,18 @@ void region_model::check_symbolic_bounds (const region 
*base_reg,
          gcc_unreachable ();
          break;
        case DIR_READ:
-         ctxt->warn (new symbolic_buffer_overread (base_reg, diag_arg,
-                                                   offset_tree,
-                                                   num_bytes_tree,
-                                                   capacity_tree));
+         ctxt->warn (make_unique<symbolic_buffer_overread> (base_reg,
+                                                            diag_arg,
+                                                            offset_tree,
+                                                            num_bytes_tree,
+                                                            capacity_tree));
          break;
        case DIR_WRITE:
-         ctxt->warn (new symbolic_buffer_overflow (base_reg, diag_arg,
-                                                   offset_tree,
-                                                   num_bytes_tree,
-                                                   capacity_tree));
+         ctxt->warn (make_unique<symbolic_buffer_overflow> (base_reg,
+                                                            diag_arg,
+                                                            offset_tree,
+                                                            num_bytes_tree,
+                                                            capacity_tree));
          break;
        }
     }
@@ -1884,10 +1891,10 @@ region_model::check_region_bounds (const region *reg,
          gcc_unreachable ();
          break;
        case DIR_READ:
-         ctxt->warn (new buffer_underread (reg, diag_arg, out));
+         ctxt->warn (make_unique<buffer_underread> (reg, diag_arg, out));
          break;
        case DIR_WRITE:
-         ctxt->warn (new buffer_underflow (reg, diag_arg, out));
+         ctxt->warn (make_unique<buffer_underflow> (reg, diag_arg, out));
          break;
        }
     }
@@ -1912,10 +1919,12 @@ region_model::check_region_bounds (const region *reg,
          gcc_unreachable ();
          break;
        case DIR_READ:
-         ctxt->warn (new buffer_overread (reg, diag_arg, out, byte_bound));
+         ctxt->warn (make_unique<buffer_overread> (reg, diag_arg,
+                                                   out, byte_bound));
          break;
        case DIR_WRITE:
-         ctxt->warn (new buffer_overflow (reg, diag_arg, out, byte_bound));
+         ctxt->warn (make_unique<buffer_overflow> (reg, diag_arg,
+                                                   out, byte_bound));
          break;
        }
     }
@@ -2537,9 +2546,10 @@ check_external_function_for_access_attr (const gcall 
*call,
              m_access (access)
            {
            }
-           pending_note *make_note () final override
+           std::unique_ptr<pending_note> make_note () final override
            {
-             return new reason_attr_access (m_callee_fndecl, m_access);
+             return make_unique<reason_attr_access>
+               (m_callee_fndecl, m_access);
            }
          private:
            tree m_callee_fndecl;
@@ -3347,7 +3357,8 @@ region_model::deref_rvalue (const svalue *ptr_sval, tree 
ptr_tree,
                const poisoned_svalue *poisoned_sval
                  = as_a <const poisoned_svalue *> (ptr_sval);
                enum poison_kind pkind = poisoned_sval->get_poison_kind ();
-               ctxt->warn (new poisoned_value_diagnostic (ptr, pkind, NULL));
+               ctxt->warn (make_unique<poisoned_value_diagnostic>
+                             (ptr, pkind, NULL));
              }
          }
       }
@@ -3504,14 +3515,16 @@ region_model::check_for_writable_region (const region* 
dest_reg,
       {
        const function_region *func_reg = as_a <const function_region *> 
(base_reg);
        tree fndecl = func_reg->get_fndecl ();
-       ctxt->warn (new write_to_const_diagnostic (func_reg, fndecl));
+       ctxt->warn (make_unique<write_to_const_diagnostic>
+                     (func_reg, fndecl));
       }
       break;
     case RK_LABEL:
       {
        const label_region *label_reg = as_a <const label_region *> (base_reg);
        tree label = label_reg->get_label ();
-       ctxt->warn (new write_to_const_diagnostic (label_reg, label));
+       ctxt->warn (make_unique<write_to_const_diagnostic>
+                     (label_reg, label));
       }
       break;
     case RK_DECL:
@@ -3524,11 +3537,11 @@ region_model::check_for_writable_region (const region* 
dest_reg,
           "this" param is "T* const").  */
        if (TREE_READONLY (decl)
            && is_global_var (decl))
-         ctxt->warn (new write_to_const_diagnostic (dest_reg, decl));
+         ctxt->warn (make_unique<write_to_const_diagnostic> (dest_reg, decl));
       }
       break;
     case RK_STRING:
-      ctxt->warn (new write_to_string_literal_diagnostic (dest_reg));
+      ctxt->warn (make_unique<write_to_string_literal_diagnostic> (dest_reg));
       break;
     }
 }
@@ -4004,8 +4017,8 @@ region_model::check_region_size (const region *lhs_reg, 
const svalue *rhs_sval,
        if (TREE_CODE (cst_cap) == INTEGER_CST
            && !capacity_compatible_with_type (cst_cap, pointee_size_tree,
                                               is_struct))
-         ctxt->warn (new dubious_allocation_size (lhs_reg, rhs_reg,
-                                                  cst_cap));
+         ctxt->warn (make_unique <dubious_allocation_size> (lhs_reg, rhs_reg,
+                                                            cst_cap));
       }
       break;
     default:
@@ -4016,8 +4029,9 @@ region_model::check_region_size (const region *lhs_reg, 
const svalue *rhs_sval,
            if (!v.get_result ())
              {
                tree expr = get_representative_tree (capacity);
-               ctxt->warn (new dubious_allocation_size (lhs_reg, rhs_reg,
-                           expr));
+               ctxt->warn (make_unique <dubious_allocation_size> (lhs_reg,
+                                                                  rhs_reg,
+                                                                  expr));
              }
          }
       break;
@@ -5730,7 +5744,7 @@ region_model::check_dynamic_size_for_floats (const svalue 
*size_in_bytes,
   if (const svalue *float_sval = v.get_svalue_to_report ())
        {
          tree diag_arg = get_representative_tree (float_sval);
-         ctxt->warn (new float_as_size_arg (diag_arg));
+         ctxt->warn (make_unique<float_as_size_arg> (diag_arg));
        }
 }
 
@@ -6353,17 +6367,16 @@ region_model::maybe_complain_about_infoleak (const 
region *dst_reg,
 {
   /* Check for exposure.  */
   if (contains_uninit_p (copied_sval))
-    ctxt->warn (new exposure_through_uninit_copy (src_reg,
-                                                 dst_reg,
-                                                 copied_sval));
+    ctxt->warn (make_unique<exposure_through_uninit_copy> (src_reg,
+                                                          dst_reg,
+                                                          copied_sval));
 }
 
 /* class noop_region_model_context : public region_model_context.  */
 
 void
-noop_region_model_context::add_note (pending_note *pn)
+noop_region_model_context::add_note (std::unique_ptr<pending_note>)
 {
-  delete pn;
 }
 
 void
diff --git a/gcc/analyzer/region-model.h b/gcc/analyzer/region-model.h
index 635a0c27330..3c355c3d7ec 100644
--- a/gcc/analyzer/region-model.h
+++ b/gcc/analyzer/region-model.h
@@ -31,6 +31,7 @@ along with GCC; see the file COPYING3.  If not see
 #include "analyzer/region.h"
 #include "analyzer/known-function-manager.h"
 #include "analyzer/region-model-manager.h"
+#include "analyzer/pending-diagnostic.h"
 
 using namespace ana;
 
@@ -664,11 +665,11 @@ class region_model_context
  public:
   /* Hook for clients to store pending diagnostics.
      Return true if the diagnostic was stored, or false if it was deleted.  */
-  virtual bool warn (pending_diagnostic *d) = 0;
+  virtual bool warn (std::unique_ptr<pending_diagnostic> d) = 0;
 
-  /* Hook for clients to add a note to the last previously stored pending 
diagnostic.
-     Takes ownership of the pending_node (or deletes it).  */
-  virtual void add_note (pending_note *pn) = 0;
+  /* Hook for clients to add a note to the last previously stored
+     pending diagnostic.  */
+  virtual void add_note (std::unique_ptr<pending_note> pn) = 0;
 
   /* Hook for clients to be notified when an SVAL that was reachable
      in a previous state is no longer live, so that clients can emit warnings
@@ -749,8 +750,8 @@ class region_model_context
 class noop_region_model_context : public region_model_context
 {
 public:
-  bool warn (pending_diagnostic *) override { return false; }
-  void add_note (pending_note *pn) override;
+  bool warn (std::unique_ptr<pending_diagnostic>) override { return false; }
+  void add_note (std::unique_ptr<pending_note>) override;
   void on_svalue_leak (const svalue *) override {}
   void on_liveness_change (const svalue_set &,
                           const region_model *) override {}
@@ -827,14 +828,14 @@ private:
 class region_model_context_decorator : public region_model_context
 {
  public:
-  bool warn (pending_diagnostic *d) override
+  bool warn (std::unique_ptr<pending_diagnostic> d) override
   {
-    return m_inner->warn (d);
+    return m_inner->warn (std::move (d));
   }
 
-  void add_note (pending_note *pn) override
+  void add_note (std::unique_ptr<pending_note> pn) override
   {
-    m_inner->add_note (pn);
+    m_inner->add_note (std::move (pn));
   }
 
   void on_svalue_leak (const svalue *sval) override
@@ -947,9 +948,9 @@ protected:
 class note_adding_context : public region_model_context_decorator
 {
 public:
-  bool warn (pending_diagnostic *d) override
+  bool warn (std::unique_ptr<pending_diagnostic> d) override
   {
-    if (m_inner->warn (d))
+    if (m_inner->warn (std::move (d)))
       {
        add_note (make_note ());
        return true;
@@ -959,7 +960,7 @@ public:
   }
 
   /* Hook to make the new note.  */
-  virtual pending_note *make_note () = 0;
+  virtual std::unique_ptr<pending_note> make_note () = 0;
 
 protected:
   note_adding_context (region_model_context *inner)
@@ -1102,9 +1103,9 @@ using namespace ::selftest;
 class test_region_model_context : public noop_region_model_context
 {
 public:
-  bool warn (pending_diagnostic *d) final override
+  bool warn (std::unique_ptr<pending_diagnostic> d) final override
   {
-    m_diagnostics.safe_push (d);
+    m_diagnostics.safe_push (d.release ());
     return true;
   }
 
diff --git a/gcc/analyzer/region.cc b/gcc/analyzer/region.cc
index da5a13ec0be..4bc191848a4 100644
--- a/gcc/analyzer/region.cc
+++ b/gcc/analyzer/region.cc
@@ -19,6 +19,7 @@ along with GCC; see the file COPYING3.  If not see
 <http://www.gnu.org/licenses/>.  */
 
 #include "config.h"
+#define INCLUDE_MEMORY
 #include "system.h"
 #include "coretypes.h"
 #include "tree.h"
diff --git a/gcc/analyzer/sm-fd.cc b/gcc/analyzer/sm-fd.cc
index c4ad91cfeb2..eae1b77229f 100644
--- a/gcc/analyzer/sm-fd.cc
+++ b/gcc/analyzer/sm-fd.cc
@@ -19,8 +19,10 @@ along with GCC; see the file COPYING3.  If not see
 <http://www.gnu.org/licenses/>.  */
 
 #include "config.h"
+#define INCLUDE_MEMORY
 #include "system.h"
 #include "coretypes.h"
+#include "make-unique.h"
 #include "tree.h"
 #include "function.h"
 #include "basic-block.h"
@@ -109,7 +111,7 @@ public:
                     const svalue *rhs) const final override;
 
   bool can_purge_p (state_t s) const final override;
-  pending_diagnostic *on_leak (tree var) const final override;
+  std::unique_ptr<pending_diagnostic> on_leak (tree var) const final override;
 
   bool is_unchecked_fd_p (state_t s) const;
   bool is_valid_fd_p (state_t s) const;
@@ -864,9 +866,10 @@ fd_state_machine::check_for_fd_attrs (
            {
 
              sm_ctxt->warn (node, stmt, arg,
-                            new fd_use_after_close (*this, diag_arg,
-                                                    callee_fndecl, attr_name,
-                                                    arg_idx));
+                            make_unique<fd_use_after_close>
+                              (*this, diag_arg,
+                               callee_fndecl, attr_name,
+                               arg_idx));
              continue;
            }
 
@@ -874,9 +877,10 @@ fd_state_machine::check_for_fd_attrs (
            {
              if (!is_constant_fd_p (state))
                sm_ctxt->warn (node, stmt, arg,
-                              new fd_use_without_check (*this, diag_arg,
-                                                       callee_fndecl, 
attr_name,
-                                                       arg_idx));
+                              make_unique<fd_use_without_check>
+                                (*this, diag_arg,
+                                 callee_fndecl, attr_name,
+                                 arg_idx));
            }
 
          switch (fd_attr_access_dir)
@@ -889,8 +893,11 @@ fd_state_machine::check_for_fd_attrs (
                {
                  sm_ctxt->warn (
                      node, stmt, arg,
-                     new fd_access_mode_mismatch (*this, diag_arg, DIRS_WRITE,
-                                                  callee_fndecl, attr_name, 
arg_idx));
+                     make_unique<fd_access_mode_mismatch> (*this, diag_arg,
+                                                           DIRS_WRITE,
+                                                           callee_fndecl,
+                                                           attr_name,
+                                                           arg_idx));
                }
 
              break;
@@ -900,8 +907,11 @@ fd_state_machine::check_for_fd_attrs (
                {
                  sm_ctxt->warn (
                      node, stmt, arg,
-                     new fd_access_mode_mismatch (*this, diag_arg, DIRS_READ,
-                                                  callee_fndecl, attr_name, 
arg_idx));
+                     make_unique<fd_access_mode_mismatch> (*this, diag_arg,
+                                                           DIRS_READ,
+                                                           callee_fndecl,
+                                                           attr_name,
+                                                           arg_idx));
                }
 
              break;
@@ -942,7 +952,8 @@ fd_state_machine::on_open (sm_context *sm_ctxt, const 
supernode *node,
     }
   else
     {
-      sm_ctxt->warn (node, stmt, NULL_TREE, new fd_leak (*this, NULL_TREE));
+      sm_ctxt->warn (node, stmt, NULL_TREE,
+                    make_unique<fd_leak> (*this, NULL_TREE));
     }
 }
 
@@ -954,7 +965,8 @@ fd_state_machine::on_creat (sm_context *sm_ctxt, const 
supernode *node,
   if (lhs)
     sm_ctxt->on_transition (node, stmt, lhs, m_start, m_unchecked_write_only);
   else
-    sm_ctxt->warn (node, stmt, NULL_TREE, new fd_leak (*this, NULL_TREE));
+    sm_ctxt->warn (node, stmt, NULL_TREE,
+                  make_unique<fd_leak> (*this, NULL_TREE));
 }
 
 void
@@ -1000,7 +1012,8 @@ fd_state_machine::check_for_dup (sm_context *sm_ctxt, 
const supernode *node,
        {
          sm_ctxt->warn (
              node, stmt, arg_2,
-             new fd_use_without_check (*this, diag_arg_2, callee_fndecl));
+             make_unique<fd_use_without_check> (*this, diag_arg_2,
+                                                callee_fndecl));
          return;
        }
       /* dup2 returns value of its second argument on success.But, the
@@ -1038,7 +1051,8 @@ fd_state_machine::on_close (sm_context *sm_ctxt, const 
supernode *node,
 
   if (is_closed_fd_p (state))
     {
-      sm_ctxt->warn (node, stmt, arg, new fd_double_close (*this, diag_arg));
+      sm_ctxt->warn (node, stmt, arg,
+                    make_unique<fd_double_close> (*this, diag_arg));
       sm_ctxt->set_next_state (stmt, arg, m_stop);
     }
 }
@@ -1070,7 +1084,8 @@ fd_state_machine::check_for_open_fd (
   if (is_closed_fd_p (state))
     {
       sm_ctxt->warn (node, stmt, arg,
-                    new fd_use_after_close (*this, diag_arg, callee_fndecl));
+                    make_unique<fd_use_after_close> (*this, diag_arg,
+                                                     callee_fndecl));
     }
 
   else
@@ -1080,7 +1095,8 @@ fd_state_machine::check_for_open_fd (
          if (!is_constant_fd_p (state))
            sm_ctxt->warn (
                node, stmt, arg,
-               new fd_use_without_check (*this, diag_arg, callee_fndecl));
+               make_unique<fd_use_without_check> (*this, diag_arg,
+                                                  callee_fndecl));
        }
       switch (callee_fndecl_dir)
        {
@@ -1091,7 +1107,7 @@ fd_state_machine::check_for_open_fd (
            {
              tree diag_arg = sm_ctxt->get_diagnostic_tree (arg);
              sm_ctxt->warn (node, stmt, arg,
-                            new fd_access_mode_mismatch (
+                            make_unique<fd_access_mode_mismatch> (
                                 *this, diag_arg, DIRS_WRITE, callee_fndecl));
            }
 
@@ -1102,7 +1118,7 @@ fd_state_machine::check_for_open_fd (
            {
              tree diag_arg = sm_ctxt->get_diagnostic_tree (arg);
              sm_ctxt->warn (node, stmt, arg,
-                            new fd_access_mode_mismatch (
+                            make_unique<fd_access_mode_mismatch> (
                                 *this, diag_arg, DIRS_READ, callee_fndecl));
            }
          break;
@@ -1174,10 +1190,10 @@ fd_state_machine::can_purge_p (state_t s) const
     return true;
 }
 
-pending_diagnostic *
+std::unique_ptr<pending_diagnostic>
 fd_state_machine::on_leak (tree var) const
 {
-  return new fd_leak (*this, var);
+  return make_unique<fd_leak> (*this, var);
 }
 } // namespace
 
diff --git a/gcc/analyzer/sm-file.cc b/gcc/analyzer/sm-file.cc
index 13f2507f7c7..cbd17887e93 100644
--- a/gcc/analyzer/sm-file.cc
+++ b/gcc/analyzer/sm-file.cc
@@ -19,8 +19,10 @@ along with GCC; see the file COPYING3.  If not see
 <http://www.gnu.org/licenses/>.  */
 
 #include "config.h"
+#define INCLUDE_MEMORY
 #include "system.h"
 #include "coretypes.h"
+#include "make-unique.h"
 #include "tree.h"
 #include "function.h"
 #include "basic-block.h"
@@ -79,7 +81,7 @@ public:
                     const svalue *rhs) const final override;
 
   bool can_purge_p (state_t s) const final override;
-  pending_diagnostic *on_leak (tree var) const final override;
+  std::unique_ptr<pending_diagnostic> on_leak (tree var) const final override;
 
   /* State for a FILE * returned from fopen that hasn't been checked for
      NULL.
@@ -404,7 +406,7 @@ fileptr_state_machine::on_stmt (sm_context *sm_ctxt,
              {
                tree diag_arg = sm_ctxt->get_diagnostic_tree (arg);
                sm_ctxt->warn (node, stmt, arg,
-                              new double_fclose (*this, diag_arg));
+                              make_unique<double_fclose> (*this, diag_arg));
                sm_ctxt->set_next_state (stmt, arg, m_stop);
              }
            return true;
@@ -471,10 +473,10 @@ fileptr_state_machine::can_purge_p (state_t s) const
    fileptr_state_machine, for complaining about leaks of FILE * in
    state 'unchecked' and 'nonnull'.  */
 
-pending_diagnostic *
+std::unique_ptr<pending_diagnostic>
 fileptr_state_machine::on_leak (tree var) const
 {
-  return new file_leak (*this, var);
+  return make_unique<file_leak> (*this, var);
 }
 
 } // anonymous namespace
diff --git a/gcc/analyzer/sm-malloc.cc b/gcc/analyzer/sm-malloc.cc
index fef6e63e1d7..d050ef83eeb 100644
--- a/gcc/analyzer/sm-malloc.cc
+++ b/gcc/analyzer/sm-malloc.cc
@@ -19,8 +19,10 @@ along with GCC; see the file COPYING3.  If not see
 <http://www.gnu.org/licenses/>.  */
 
 #include "config.h"
+#define INCLUDE_MEMORY
 #include "system.h"
 #include "coretypes.h"
+#include "make-unique.h"
 #include "tree.h"
 #include "function.h"
 #include "basic-block.h"
@@ -383,7 +385,7 @@ public:
                     const svalue *rhs) const final override;
 
   bool can_purge_p (state_t s) const final override;
-  pending_diagnostic *on_leak (tree var) const final override;
+  std::unique_ptr<pending_diagnostic> on_leak (tree var) const final override;
 
   bool reset_when_passed_to_unknown_fn_p (state_t s,
                                          bool is_mutable) const final override;
@@ -1726,9 +1728,8 @@ malloc_state_machine::on_stmt (sm_context *sm_ctxt,
                        {
                          tree diag_arg = sm_ctxt->get_diagnostic_tree (arg);
                          sm_ctxt->warn (node, stmt, arg,
-                                        new possible_null_arg (*this, diag_arg,
-                                                               callee_fndecl,
-                                                               i));
+                                        make_unique<possible_null_arg>
+                                          (*this, diag_arg, callee_fndecl, i));
                          const allocation_state *astate
                            = as_a_allocation_state (state);
                          sm_ctxt->set_next_state (stmt, arg,
@@ -1738,8 +1739,8 @@ malloc_state_machine::on_stmt (sm_context *sm_ctxt,
                        {
                          tree diag_arg = sm_ctxt->get_diagnostic_tree (arg);
                          sm_ctxt->warn (node, stmt, arg,
-                                        new null_arg (*this, diag_arg,
-                                                      callee_fndecl, i));
+                                        make_unique<null_arg>
+                                          (*this, diag_arg, callee_fndecl, i));
                          sm_ctxt->set_next_state (stmt, arg, m_stop);
                        }
                    }
@@ -1781,7 +1782,8 @@ malloc_state_machine::on_stmt (sm_context *sm_ctxt,
            {
              tree diag_arg = sm_ctxt->get_diagnostic_tree (arg);
              sm_ctxt->warn (node, stmt, arg,
-                            new possible_null_deref (*this, diag_arg));
+                            make_unique<possible_null_deref> (*this,
+                                                              diag_arg));
              const allocation_state *astate = as_a_allocation_state (state);
              sm_ctxt->set_next_state (stmt, arg, astate->get_nonnull ());
            }
@@ -1789,7 +1791,7 @@ malloc_state_machine::on_stmt (sm_context *sm_ctxt,
            {
              tree diag_arg = sm_ctxt->get_diagnostic_tree (arg);
              sm_ctxt->warn (node, stmt, arg,
-                            new null_deref (*this, diag_arg));
+                            make_unique<null_deref> (*this, diag_arg));
              sm_ctxt->set_next_state (stmt, arg, m_stop);
            }
          else if (freed_p (state))
@@ -1797,8 +1799,8 @@ malloc_state_machine::on_stmt (sm_context *sm_ctxt,
              tree diag_arg = sm_ctxt->get_diagnostic_tree (arg);
              const allocation_state *astate = as_a_allocation_state (state);
              sm_ctxt->warn (node, stmt, arg,
-                            new use_after_free (*this, diag_arg,
-                                                astate->m_deallocator));
+                            make_unique<use_after_free>
+                              (*this, diag_arg, astate->m_deallocator));
              sm_ctxt->set_next_state (stmt, arg, m_stop);
            }
        }
@@ -1850,8 +1852,8 @@ malloc_state_machine::handle_free_of_non_heap (sm_context 
*sm_ctxt,
       freed_reg = old_model->deref_rvalue (ptr_sval, arg, NULL);
     }
   sm_ctxt->warn (node, call, arg,
-                new free_of_non_heap (*this, diag_arg, freed_reg,
-                                      d->m_name));
+                make_unique<free_of_non_heap>
+                  (*this, diag_arg, freed_reg, d->m_name));
   sm_ctxt->set_next_state (call, arg, m_stop);
 }
 
@@ -1879,11 +1881,11 @@ malloc_state_machine::on_deallocator_call (sm_context 
*sm_ctxt,
        {
          /* Wrong allocator.  */
          tree diag_arg = sm_ctxt->get_diagnostic_tree (arg);
-         pending_diagnostic *pd
-           = new mismatching_deallocation (*this, diag_arg,
-                                           astate->m_deallocators,
-                                           d);
-         sm_ctxt->warn (node, call, arg, pd);
+         sm_ctxt->warn (node, call, arg,
+                        make_unique<mismatching_deallocation>
+                          (*this, diag_arg,
+                           astate->m_deallocators,
+                           d));
        }
       sm_ctxt->set_next_state (call, arg, d->m_freed);
     }
@@ -1895,7 +1897,7 @@ malloc_state_machine::on_deallocator_call (sm_context 
*sm_ctxt,
       /* freed -> stop, with warning.  */
       tree diag_arg = sm_ctxt->get_diagnostic_tree (arg);
       sm_ctxt->warn (node, call, arg,
-                    new double_free (*this, diag_arg, d->m_name));
+                    make_unique<double_free> (*this, diag_arg, d->m_name));
       sm_ctxt->set_next_state (call, arg, m_stop);
     }
   else if (state == m_non_heap)
@@ -1933,11 +1935,10 @@ malloc_state_machine::on_realloc_call (sm_context 
*sm_ctxt,
        {
          /* Wrong allocator.  */
          tree diag_arg = sm_ctxt->get_diagnostic_tree (arg);
-         pending_diagnostic *pd
-           = new mismatching_deallocation (*this, diag_arg,
-                                           astate->m_deallocators,
-                                           d);
-         sm_ctxt->warn (node, call, arg, pd);
+         sm_ctxt->warn (node, call, arg,
+                        make_unique<mismatching_deallocation>
+                          (*this, diag_arg,
+                           astate->m_deallocators, d));
          sm_ctxt->set_next_state (call, arg, m_stop);
          if (path_context *path_ctxt = sm_ctxt->get_path_context ())
            path_ctxt->terminate_path ();
@@ -1948,7 +1949,7 @@ malloc_state_machine::on_realloc_call (sm_context 
*sm_ctxt,
       /* freed -> stop, with warning.  */
       tree diag_arg = sm_ctxt->get_diagnostic_tree (arg);
       sm_ctxt->warn (node, call, arg,
-                    new double_free (*this, diag_arg, "free"));
+                    make_unique<double_free> (*this, diag_arg, "free"));
       sm_ctxt->set_next_state (call, arg, m_stop);
       if (path_context *path_ctxt = sm_ctxt->get_path_context ())
        path_ctxt->terminate_path ();
@@ -2030,10 +2031,10 @@ malloc_state_machine::can_purge_p (state_t s) const
    (for complaining about leaks of pointers in state 'unchecked' and
    'nonnull').  */
 
-pending_diagnostic *
+std::unique_ptr<pending_diagnostic>
 malloc_state_machine::on_leak (tree var) const
 {
-  return new malloc_leak (*this, var);
+  return make_unique<malloc_leak> (*this, var);
 }
 
 /* Implementation of state_machine::reset_when_passed_to_unknown_fn_p vfunc
diff --git a/gcc/analyzer/sm-pattern-test.cc b/gcc/analyzer/sm-pattern-test.cc
index 3208132882e..704f628f5b7 100644
--- a/gcc/analyzer/sm-pattern-test.cc
+++ b/gcc/analyzer/sm-pattern-test.cc
@@ -21,8 +21,10 @@ along with GCC; see the file COPYING3.  If not see
 <http://www.gnu.org/licenses/>.  */
 
 #include "config.h"
+#define INCLUDE_MEMORY
 #include "system.h"
 #include "coretypes.h"
+#include "make-unique.h"
 #include "tree.h"
 #include "function.h"
 #include "basic-block.h"
@@ -139,8 +141,8 @@ pattern_test_state_machine::on_condition (sm_context 
*sm_ctxt,
 
   if (tree lhs_expr = sm_ctxt->get_diagnostic_tree (lhs))
     {
-      pending_diagnostic *diag = new pattern_match (lhs_expr, op, rhs_cst);
-      sm_ctxt->warn (node, stmt, lhs_expr, diag);
+      sm_ctxt->warn (node, stmt, lhs_expr,
+                    make_unique<pattern_match> (lhs_expr, op, rhs_cst));
     }
 }
 
diff --git a/gcc/analyzer/sm-sensitive.cc b/gcc/analyzer/sm-sensitive.cc
index cb5f8595b1f..d19765fc4a9 100644
--- a/gcc/analyzer/sm-sensitive.cc
+++ b/gcc/analyzer/sm-sensitive.cc
@@ -20,8 +20,10 @@ along with GCC; see the file COPYING3.  If not see
 <http://www.gnu.org/licenses/>.  */
 
 #include "config.h"
+#define INCLUDE_MEMORY
 #include "system.h"
 #include "coretypes.h"
+#include "make-unique.h"
 #include "tree.h"
 #include "function.h"
 #include "basic-block.h"
@@ -181,7 +183,8 @@ sensitive_state_machine::warn_for_any_exposure (sm_context 
*sm_ctxt,
     {
       tree diag_arg = sm_ctxt->get_diagnostic_tree (arg);
       sm_ctxt->warn (node, stmt, arg,
-                    new exposure_through_output_file (*this, diag_arg));
+                    make_unique<exposure_through_output_file> (*this,
+                                                               diag_arg));
     }
 }
 
diff --git a/gcc/analyzer/sm-signal.cc b/gcc/analyzer/sm-signal.cc
index e3b08c38b30..737ec4a8ad5 100644
--- a/gcc/analyzer/sm-signal.cc
+++ b/gcc/analyzer/sm-signal.cc
@@ -21,8 +21,10 @@ along with GCC; see the file COPYING3.  If not see
 <http://www.gnu.org/licenses/>.  */
 
 #include "config.h"
+#define INCLUDE_MEMORY
 #include "system.h"
 #include "coretypes.h"
+#include "make-unique.h"
 #include "tree.h"
 #include "function.h"
 #include "basic-block.h"
@@ -351,8 +353,8 @@ signal_state_machine::on_stmt (sm_context *sm_ctxt,
          if (signal_unsafe_p (callee_fndecl))
            if (sm_ctxt->get_global_state () == m_in_signal_handler)
              sm_ctxt->warn (node, stmt, NULL_TREE,
-                            new signal_unsafe_call (*this, call,
-                                                    callee_fndecl));
+                            make_unique<signal_unsafe_call>
+                              (*this, call, callee_fndecl));
     }
 
   return false;
diff --git a/gcc/analyzer/sm-taint.cc b/gcc/analyzer/sm-taint.cc
index bc27533256f..d4ee6c435b8 100644
--- a/gcc/analyzer/sm-taint.cc
+++ b/gcc/analyzer/sm-taint.cc
@@ -21,8 +21,10 @@ along with GCC; see the file COPYING3.  If not see
 <http://www.gnu.org/licenses/>.  */
 
 #include "config.h"
+#define INCLUDE_MEMORY
 #include "system.h"
 #include "coretypes.h"
+#include "make-unique.h"
 #include "tree.h"
 #include "function.h"
 #include "basic-block.h"
@@ -1163,10 +1165,11 @@ taint_state_machine::check_for_tainted_size_arg 
(sm_context *sm_ctxt,
            TREE_STRING_POINTER (access->to_external_string ());
          tree diag_size = sm_ctxt->get_diagnostic_tree (size_arg);
          sm_ctxt->warn (node, call, size_arg,
-                        new tainted_access_attrib_size (*this, diag_size, b,
-                                                        callee_fndecl,
-                                                        access->sizarg,
-                                                        access_str));
+                        make_unique<tainted_access_attrib_size>
+                          (*this, diag_size, b,
+                           callee_fndecl,
+                           access->sizarg,
+                           access_str));
        }
     }
 }
@@ -1201,7 +1204,7 @@ taint_state_machine::check_for_tainted_divisor 
(sm_context *sm_ctxt,
 
       tree diag_divisor = sm_ctxt->get_diagnostic_tree (divisor_expr);
       sm_ctxt->warn (node, assign, divisor_expr,
-                    new tainted_divisor (*this, diag_divisor, b));
+                    make_unique <tainted_divisor> (*this, diag_divisor, b));
       sm_ctxt->set_next_state (assign, divisor_sval, m_stop);
     }
 }
@@ -1264,7 +1267,7 @@ region_model::check_region_for_taint (const region *reg,
            if (taint_sm.get_taint (state, index->get_type (), &b))
            {
              tree arg = get_representative_tree (index);
-             ctxt->warn (new tainted_array_index (taint_sm, arg, b));
+             ctxt->warn (make_unique<tainted_array_index> (taint_sm, arg, b));
            }
          }
          break;
@@ -1286,7 +1289,7 @@ region_model::check_region_for_taint (const region *reg,
            if (taint_sm.get_taint (state, effective_type, &b))
              {
                tree arg = get_representative_tree (offset);
-               ctxt->warn (new tainted_offset (taint_sm, arg, b));
+               ctxt->warn (make_unique<tainted_offset> (taint_sm, arg, b));
              }
          }
          break;
@@ -1311,7 +1314,7 @@ region_model::check_region_for_taint (const region *reg,
            if (taint_sm.get_taint (state, size_sval->get_type (), &b))
              {
                tree arg = get_representative_tree (size_sval);
-               ctxt->warn (new tainted_size (taint_sm, arg, b));
+               ctxt->warn (make_unique<tainted_size> (taint_sm, arg, b));
              }
          }
          break;
@@ -1357,7 +1360,8 @@ region_model::check_dynamic_size_for_taint (enum 
memory_space mem_space,
   if (taint_sm.get_taint (state, size_in_bytes->get_type (), &b))
     {
       tree arg = get_representative_tree (size_in_bytes);
-      ctxt->warn (new tainted_allocation_size (taint_sm, arg, b, mem_space));
+      ctxt->warn (make_unique<tainted_allocation_size>
+                   (taint_sm, arg, b, mem_space));
     }
 }
 
diff --git a/gcc/analyzer/sm.cc b/gcc/analyzer/sm.cc
index 1ab4c21fa1d..1f329cb11d0 100644
--- a/gcc/analyzer/sm.cc
+++ b/gcc/analyzer/sm.cc
@@ -19,6 +19,7 @@ along with GCC; see the file COPYING3.  If not see
 <http://www.gnu.org/licenses/>.  */
 
 #include "config.h"
+#define INCLUDE_MEMORY
 #include "system.h"
 #include "coretypes.h"
 #include "tree.h"
@@ -39,6 +40,7 @@ along with GCC; see the file COPYING3.  If not see
 #include "analyzer/store.h"
 #include "analyzer/svalue.h"
 #include "analyzer/program-state.h"
+#include "analyzer/pending-diagnostic.h"
 
 #if ENABLE_ANALYZER
 
@@ -121,6 +123,14 @@ state_machine::get_state_by_name (const char *name) const
   gcc_unreachable ();
 }
 
+/* Base implementation of state_machine::on_leak.  */
+
+std::unique_ptr<pending_diagnostic>
+state_machine::on_leak (tree var ATTRIBUTE_UNUSED) const
+{
+  return NULL;
+}
+
 /* Dump a multiline representation of this state machine to PP.  */
 
 void
diff --git a/gcc/analyzer/sm.h b/gcc/analyzer/sm.h
index 87ab11cc962..0171474e4b9 100644
--- a/gcc/analyzer/sm.h
+++ b/gcc/analyzer/sm.h
@@ -123,10 +123,8 @@ public:
   virtual bool can_purge_p (state_t s) const = 0;
 
   /* Called when VAR leaks (and !can_purge_p).  */
-  virtual pending_diagnostic *on_leak (tree var ATTRIBUTE_UNUSED) const
-  {
-    return NULL;
-  }
+  virtual std::unique_ptr<pending_diagnostic>
+  on_leak (tree var ATTRIBUTE_UNUSED) const;
 
   /* Return true if S should be reset to "start" for values passed (or 
reachable
      from) calls to unknown functions.  IS_MUTABLE is true for pointers as
@@ -250,9 +248,11 @@ public:
   /* Called by state_machine in response to pattern matches:
      issue a diagnostic D using NODE and STMT for location information.  */
   virtual void warn (const supernode *node, const gimple *stmt,
-                    tree var, pending_diagnostic *d) = 0;
+                    tree var,
+                    std::unique_ptr<pending_diagnostic> d) = 0;
   virtual void warn (const supernode *node, const gimple *stmt,
-                    const svalue *var, pending_diagnostic *d) = 0;
+                    const svalue *var,
+                    std::unique_ptr<pending_diagnostic> d) = 0;
 
   /* For use when generating trees when creating pending_diagnostics, so that
      rather than e.g.
diff --git a/gcc/analyzer/state-purge.cc b/gcc/analyzer/state-purge.cc
index d3f516a671c..6fac18a2bbc 100644
--- a/gcc/analyzer/state-purge.cc
+++ b/gcc/analyzer/state-purge.cc
@@ -19,6 +19,7 @@ along with GCC; see the file COPYING3.  If not see
 <http://www.gnu.org/licenses/>.  */
 
 #include "config.h"
+#define INCLUDE_MEMORY
 #include "system.h"
 #include "coretypes.h"
 #include "tree.h"
diff --git a/gcc/analyzer/store.cc b/gcc/analyzer/store.cc
index 2631ea25559..c0f5ed104e1 100644
--- a/gcc/analyzer/store.cc
+++ b/gcc/analyzer/store.cc
@@ -19,6 +19,7 @@ along with GCC; see the file COPYING3.  If not see
 <http://www.gnu.org/licenses/>.  */
 
 #include "config.h"
+#define INCLUDE_MEMORY
 #include "system.h"
 #include "coretypes.h"
 #include "tree.h"
diff --git a/gcc/analyzer/svalue.cc b/gcc/analyzer/svalue.cc
index 4b00a81b31d..aa03b049724 100644
--- a/gcc/analyzer/svalue.cc
+++ b/gcc/analyzer/svalue.cc
@@ -19,6 +19,7 @@ along with GCC; see the file COPYING3.  If not see
 <http://www.gnu.org/licenses/>.  */
 
 #include "config.h"
+#define INCLUDE_MEMORY
 #include "system.h"
 #include "coretypes.h"
 #include "tree.h"
diff --git a/gcc/analyzer/trimmed-graph.cc b/gcc/analyzer/trimmed-graph.cc
index 9fdb4a9e240..9a42248e6fa 100644
--- a/gcc/analyzer/trimmed-graph.cc
+++ b/gcc/analyzer/trimmed-graph.cc
@@ -19,6 +19,7 @@ along with GCC; see the file COPYING3.  If not see
 <http://www.gnu.org/licenses/>.  */
 
 #include "config.h"
+#define INCLUDE_MEMORY
 #include "system.h"
 #include "coretypes.h"
 #include "tree.h"
diff --git a/gcc/analyzer/varargs.cc b/gcc/analyzer/varargs.cc
index b2e6cd53c06..a4b7ed5cd10 100644
--- a/gcc/analyzer/varargs.cc
+++ b/gcc/analyzer/varargs.cc
@@ -19,8 +19,10 @@ along with GCC; see the file COPYING3.  If not see
 <http://www.gnu.org/licenses/>.  */
 
 #include "config.h"
+#define INCLUDE_MEMORY
 #include "system.h"
 #include "coretypes.h"
+#include "make-unique.h"
 #include "tree.h"
 #include "function.h"
 #include "basic-block.h"
@@ -206,7 +208,7 @@ public:
   {
     return s != m_started;
   }
-  pending_diagnostic *on_leak (tree var) const final override;
+  std::unique_ptr<pending_diagnostic> on_leak (tree var) const final override;
 
   /* State for a va_list that the result of a va_start or va_copy.  */
   state_t m_started;
@@ -547,8 +549,8 @@ va_list_state_machine::check_for_ended_va_list (sm_context 
*sm_ctxt,
 {
   if (sm_ctxt->get_state (call, arg) == m_ended)
     sm_ctxt->warn (node, call, arg,
-                  new va_list_use_after_va_end (*this, arg, NULL_TREE,
-                                                usage_fnname));
+                  make_unique<va_list_use_after_va_end>
+                    (*this, arg, NULL_TREE, usage_fnname));
 }
 
 /* Get the svalue with associated va_list_state_machine state for a
@@ -623,10 +625,10 @@ va_list_state_machine::on_va_end (sm_context *sm_ctxt,
 /* Implementation of state_machine::on_leak vfunc for va_list_state_machine
    (for complaining about leaks of values in state 'started').  */
 
-pending_diagnostic *
+std::unique_ptr<pending_diagnostic>
 va_list_state_machine::on_leak (tree var) const
 {
-  return new va_list_leak (*this, NULL, var);
+  return make_unique<va_list_leak> (*this, NULL, var);
 }
 
 } // anonymous namespace
@@ -994,17 +996,19 @@ region_model::impl_call_va_arg (const call_details &cd)
                  else
                    {
                      if (ctxt)
-                       ctxt->warn (new va_arg_type_mismatch (va_list_tree,
-                                                             arg_reg,
-                                                             lhs_type,
-                                                             arg_type));
+                       ctxt->warn (make_unique <va_arg_type_mismatch>
+                                     (va_list_tree,
+                                      arg_reg,
+                                      lhs_type,
+                                      arg_type));
                      saw_problem = true;
                    }
                }
              else
                {
                  if (ctxt)
-                   ctxt->warn (new va_list_exhausted (va_list_tree, arg_reg));
+                   ctxt->warn (make_unique <va_list_exhausted> (va_list_tree,
+                                                                arg_reg));
                  saw_problem = true;
                }
            }
diff --git a/gcc/testsuite/gcc.dg/plugin/analyzer_gil_plugin.c 
b/gcc/testsuite/gcc.dg/plugin/analyzer_gil_plugin.c
index 2a8bf11b3e9..cf0baa5670d 100644
--- a/gcc/testsuite/gcc.dg/plugin/analyzer_gil_plugin.c
+++ b/gcc/testsuite/gcc.dg/plugin/analyzer_gil_plugin.c
@@ -4,10 +4,12 @@
 */
 /* { dg-options "-g" } */
 
+#define INCLUDE_MEMORY
 #include "gcc-plugin.h"
 #include "config.h"
 #include "system.h"
 #include "coretypes.h"
+#include "make-unique.h"
 #include "diagnostic.h"
 #include "tree.h"
 #include "gimple.h"
@@ -309,9 +311,9 @@ gil_state_machine::check_for_pyobject_in_call (sm_context 
*sm_ctxt,
       if (type_based_on_pyobject_p (type))
        {
          sm_ctxt->warn (node, call, NULL_TREE,
-                        new fncall_without_gil (*this, call,
-                                                callee_fndecl,
-                                                i));
+                        make_unique<fncall_without_gil> (*this, call,
+                                                         callee_fndecl,
+                                                         i));
          sm_ctxt->set_global_state (m_stop);
        }
     }
@@ -337,7 +339,7 @@ gil_state_machine::on_stmt (sm_context *sm_ctxt,
              if (global_state == m_released_gil)
                {
                  sm_ctxt->warn (node, stmt, NULL_TREE,
-                                new double_save_thread (*this, call));
+                                make_unique<double_save_thread> (*this, call));
                  sm_ctxt->set_global_state (m_stop);
                }
              else
@@ -393,7 +395,7 @@ gil_state_machine::check_for_pyobject_usage_without_gil 
(sm_context *sm_ctxt,
   if (type_based_on_pyobject_p (type))
     {
       sm_ctxt->warn (node, stmt, NULL_TREE,
-                    new pyobject_usage_without_gil (*this, op));
+                    make_unique<pyobject_usage_without_gil> (*this, op));
       sm_ctxt->set_global_state (m_stop);
     }
 }
diff --git a/gcc/testsuite/gcc.dg/plugin/analyzer_kernel_plugin.c 
b/gcc/testsuite/gcc.dg/plugin/analyzer_kernel_plugin.c
index 6ec08bff73c..d1c29132e67 100644
--- a/gcc/testsuite/gcc.dg/plugin/analyzer_kernel_plugin.c
+++ b/gcc/testsuite/gcc.dg/plugin/analyzer_kernel_plugin.c
@@ -1,6 +1,7 @@
 /* Proof-of-concept of a -fanalyzer plugin for the Linux kernel.  */
 /* { dg-options "-g" } */
 
+#define INCLUDE_MEMORY
 #include "gcc-plugin.h"
 #include "config.h"
 #include "system.h"
diff --git a/gcc/testsuite/gcc.dg/plugin/analyzer_known_fns_plugin.c 
b/gcc/testsuite/gcc.dg/plugin/analyzer_known_fns_plugin.c
index 060a3082fd6..ccf69ed8338 100644
--- a/gcc/testsuite/gcc.dg/plugin/analyzer_known_fns_plugin.c
+++ b/gcc/testsuite/gcc.dg/plugin/analyzer_known_fns_plugin.c
@@ -1,6 +1,7 @@
 /* Proof-of-concept of a -fanalyzer plugin to handle known functions.  */
 /* { dg-options "-g" } */
 
+#define INCLUDE_MEMORY
 #include "gcc-plugin.h"
 #include "config.h"
 #include "system.h"
-- 
2.26.3

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