From 1e8588e8c310a628fb0215ef15dc3cc29f98c336 Mon Sep 17 00:00:00 2001
From: Sverker Eriksson <sverker@erlang.org>
Date: Sun, 2 Oct 2016 16:17:21 +0200
Subject: erts: Refactor hipe_loader_state_dtor into a true destructor

that is only called once.

Basically switch hipe_free_loader_state and hipe_loader_state_dtor.
---
 erts/emulator/hipe/hipe_load.c | 26 +++++++++++---------------
 erts/emulator/hipe/hipe_load.h |  2 +-
 2 files changed, 12 insertions(+), 16 deletions(-)

(limited to 'erts/emulator/hipe')

diff --git a/erts/emulator/hipe/hipe_load.c b/erts/emulator/hipe/hipe_load.c
index 48f0cab293..6261857d8f 100644
--- a/erts/emulator/hipe/hipe_load.c
+++ b/erts/emulator/hipe/hipe_load.c
@@ -32,13 +32,8 @@
 #include "erl_binary.h"
 #include "hipe_load.h"
 
-/*
- * This destructor function can safely be called multiple times.
- */
-static void
-hipe_loader_state_dtor(Binary* magic)
+void hipe_free_loader_state(HipeLoaderState *stp)
 {
-    HipeLoaderState* stp = ERTS_MAGIC_BIN_DATA(magic);
     if (stp->module == NIL) return;
 
     erts_fprintf(stderr, "Destroying HiPE loader state for module %T\n",
@@ -64,6 +59,16 @@ hipe_loader_state_dtor(Binary* magic)
      */
 }
 
+static void
+hipe_loader_state_dtor(Binary* magic)
+{
+    HipeLoaderState* stp = ERTS_MAGIC_BIN_DATA(magic);
+
+    ASSERT(ERTS_MAGIC_BIN_DESTRUCTOR(magic) == hipe_loader_state_dtor);
+
+    hipe_free_loader_state(stp);
+}
+
 Binary *hipe_alloc_loader_state(Eterm module)
 {
     HipeLoaderState *stp;
@@ -90,15 +95,6 @@ Binary *hipe_alloc_loader_state(Eterm module)
     return magic;
 }
 
-void hipe_free_loader_state(Binary *magic)
-{
-    if (ERTS_MAGIC_BIN_DESTRUCTOR(magic) != hipe_loader_state_dtor)
-	return;
-
-    /* Why does BEAM do a refc_dec here? What is holding that reference? */
-    hipe_loader_state_dtor(magic);
-}
-
 HipeLoaderState *
 hipe_get_loader_state(Binary *magic)
 {
diff --git a/erts/emulator/hipe/hipe_load.h b/erts/emulator/hipe/hipe_load.h
index 17dd3c3c05..40c8a8aa2a 100644
--- a/erts/emulator/hipe/hipe_load.h
+++ b/erts/emulator/hipe/hipe_load.h
@@ -42,7 +42,7 @@ typedef struct hipe_loader_state {
 } HipeLoaderState;
 
 extern Binary *hipe_alloc_loader_state(Eterm module);
-extern void hipe_free_loader_state(Binary *binary);
+extern void hipe_free_loader_state(HipeLoaderState*);
 extern HipeLoaderState *hipe_get_loader_state(Binary *binary);
 
 #endif /* HIPE_LOAD_H */
-- 
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