From aef22ac1c1f269e145d1f644e86c41712d8cfa12 Mon Sep 17 00:00:00 2001
From: Xinchen Hui <laruence@gmail.com>
Date: Thu, 17 Mar 2016 20:21:36 +0800
Subject: [PATCH] Remove unnecessary pattern

---
 ext/opcache/Optimizer/block_pass.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/ext/opcache/Optimizer/block_pass.c b/ext/opcache/Optimizer/block_pass.c
index 830addc38a..e168457661 100644
--- a/ext/opcache/Optimizer/block_pass.c
+++ b/ext/opcache/Optimizer/block_pass.c
@@ -681,6 +681,9 @@ static void zend_optimize_block(zend_code_block *block, zend_op_array *op_array,
 			MAKE_NOP(src);
 		}
 
+#if 0
+	   /* This pattern is unnecessary for PHP7, 
+		* since compiler won't generate ZEND_FREE for ZEND_BOOL anymore */
        /* T = BOOL(X), FREE(T) => NOP */
 		if (opline->opcode == ZEND_FREE &&
 			ZEND_OP1_TYPE(opline) == IS_TMP_VAR &&
@@ -698,7 +701,6 @@ static void zend_optimize_block(zend_code_block *block, zend_op_array *op_array,
 			}
 		}
 
-#if 0
 		/* pre-evaluate functions:
 		   constant(x)
 		   defined(x)
-- 
2.50.1