From: Dmitry Stogov <dmitry@zend.com>
Date: Wed, 31 May 2017 06:53:10 +0000 (+0300)
Subject: New optimization pattern
X-Git-Tag: php-7.2.0alpha1~33
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=a0cc6d426f709bf44741cd7254221bbc6e31c6a4;p=php

New optimization pattern
---

diff --git a/ext/opcache/Optimizer/pass3.c b/ext/opcache/Optimizer/pass3.c
index e5d032cd29..dfb3e0dbcd 100644
--- a/ext/opcache/Optimizer/pass3.c
+++ b/ext/opcache/Optimizer/pass3.c
@@ -299,6 +299,13 @@ void zend_optimizer_pass3(zend_op_array *op_array)
 							  JMPZ_EX(X,L1+1) */
 							ZEND_SET_OP_JMP_ADDR(opline, opline->op2, target + 1);
 							break;
+						} else if (target->opcode == ZEND_BOOL &&
+						           SAME_VAR(opline->result, target->op1)) {
+							/* convert Y = JMPZ_EX(X,L1), L1: Z = BOOL(Y) to
+							   Z = JMPZ_EX(X,L1+1) */
+							opline->result.var = target->result.var;
+							ZEND_SET_OP_JMP_ADDR(opline, opline->op2, target + 1);
+							break;
 						} else {
 							break;
 						}