From eddef861b49f1635222a9e1771231c34a807debf Mon Sep 17 00:00:00 2001
From: Inada Naoki <songofacandy@gmail.com>
Date: Tue, 4 Jun 2019 07:38:10 +0900
Subject: [PATCH] bpo-37146: disable opcache when Py_DEBUG is defined
 (GH-13787)

--with-pydebug is commonly used to find memory leaks.
But opcache makes it harder.
So disable opcache when Py_DEBUG is defined.
---
 Python/ceval.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Python/ceval.c b/Python/ceval.c
index 0a4af915d6f..2590ce6575a 100644
--- a/Python/ceval.c
+++ b/Python/ceval.c
@@ -103,7 +103,14 @@ static long dxp[256];
 #endif
 
 /* per opcode cache */
+#ifdef Py_DEBUG
+// --with-pydebug is used to find memory leak.  opcache makes it harder.
+// So we disable opcache when Py_DEBUG is defined.
+// See bpo-37146
+#define OPCACHE_MIN_RUNS 0  /* disable opcache */
+#else
 #define OPCACHE_MIN_RUNS 1024  /* create opcache when code executed this time */
+#endif
 #define OPCACHE_STATS 0  /* Enable stats */
 
 #if OPCACHE_STATS