From: Dmitry Stogov <dmitry@zend.com>
Date: Thu, 1 Mar 2018 22:53:59 +0000 (+0300)
Subject: micro-optimization
X-Git-Tag: php-7.3.0alpha1~270^2~2^2~1
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=8b5e76c790271bd4cdef5f816ed63b2e6545f9d6;p=php

micro-optimization
---

diff --git a/Zend/zend_gc.c b/Zend/zend_gc.c
index f99507220a..0b4f1bb685 100644
--- a/Zend/zend_gc.c
+++ b/Zend/zend_gc.c
@@ -275,7 +275,8 @@ static zend_always_inline uint32_t gc_fetch_unused(void)
 	addr = GC_G(unused);
 	root = GC_G(buf) + addr;
 	ZEND_ASSERT(GC_IS_UNUSED(root->ref));
-	GC_G(unused) = (uint32_t)(uintptr_t)GC_GET_PTR(root->ref) / sizeof(void*);
+	/* optimization: GC_GET_PTR(root->ref) is not necessary because it shifted anyway */
+	GC_G(unused) = (uint32_t)(uintptr_t)root->ref / sizeof(void*);
 	return addr;
 }