Prevent incorrect optimization

diff --git a/ext/opcache/jit/zend_jit_x86.dasc b/ext/opcache/jit/zend_jit_x86.dasc
index 9229b278f130a3f78079c17b5bb390c3f5b2b6b1..0c8d847dec268e8e097623eb7f54596f008b15d7 100644 (file)
--- a/ext/opcache/jit/zend_jit_x86.dasc
+++ b/ext/opcache/jit/zend_jit_x86.dasc
@@ -4083,7 +4083,8 @@ static int zend_jit_math_double_long(dasm_State    **Dst,
 {
        zend_reg result_reg;
 
-       if (zend_is_commutative(opcode)) {
+       if (zend_is_commutative(opcode)
+        && (Z_MODE(res_addr) != IS_REG || Z_MODE(op1_addr) != IS_REG || Z_REG(res_addr) != Z_REG(op1_addr))) {
                if (Z_MODE(res_addr) == IS_REG) {
                        result_reg = Z_REG(res_addr);
                } else {