diff options
| -rw-r--r-- | ext/opcache/Optimizer/compact_literals.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/ext/opcache/Optimizer/compact_literals.c b/ext/opcache/Optimizer/compact_literals.c index c20ddbd183..deae12cdbb 100644 --- a/ext/opcache/Optimizer/compact_literals.c +++ b/ext/opcache/Optimizer/compact_literals.c @@ -345,6 +345,8 @@ void zend_optimizer_compact_literals(zend_op_array *op_array, zend_optimizer_ctx } switch (Z_TYPE(op_array->literals[i])) { case IS_NULL: + /* Only checking MAY_MERGE for IS_NULL here + * is because only IS_NULL can be default value for class type hinting(RECV_INIT). */ if ((info[i].flags & LITERAL_MAY_MERGE)) { if (l_null < 0) { l_null = j; |