From d5d24137f0d52fa89e25d8a8e89d506fa603394e Mon Sep 17 00:00:00 2001
From: krakjoe <joe.watkins@live.co.uk>
Date: Sat, 14 Sep 2013 07:57:19 +0100
Subject: [PATCH] disable unsafe optimization

---
 ext/opcache/Optimizer/pass2.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/ext/opcache/Optimizer/pass2.c b/ext/opcache/Optimizer/pass2.c
index 30708a0935baa..a24b034af99ff 100644
--- a/ext/opcache/Optimizer/pass2.c
+++ b/ext/opcache/Optimizer/pass2.c
@@ -125,13 +125,11 @@ if (ZEND_OPTIMIZER_PASS_2 & OPTIMIZATION_LEVEL) {
 						/* JMPZ(X, L1), JMP(L1) => NOP, JMP(L1) */
 						MAKE_NOP(opline);
 					} else {
-						if (opline->opcode == ZEND_JMPZ) {
-							opline->extended_value = ZEND_OP1(opline + 1).opline_num;
-						} else {
+						if (opline->opcode != ZEND_JMPZ) {
 							opline->extended_value = ZEND_OP2(opline).opline_num;
 							COPY_NODE(opline->op2, (opline + 1)->op1);
+							opline->opcode = ZEND_JMPZNZ;
 						}
-						opline->opcode = ZEND_JMPZNZ;
 					}
 				}
 				break;