Optimize instanceof_function

Split out the simple equality check into an inline function --
this is one of the common cases.

Replace instanceof_function_ex with zend_class_implements_interface.
There are a few more places where it may be used.

1 files changed, 2 insertions, 2 deletions

diff --git a/Zend/zend_API.c b/Zend/zend_API.c
index b32c82a1b9..9bc6b12cd6 100644
--- a/Zend/zend_API.c
+++ b/Zend/zend_API.c
@@ -4282,7 +4282,7 @@ ZEND_API zend_bool zend_is_iterable(zval *iterable) /* {{{ */
 		case IS_ARRAY:
 			return 1;
 		case IS_OBJECT:
-			return instanceof_function(Z_OBJCE_P(iterable), zend_ce_traversable);
+			return zend_class_implements_interface(Z_OBJCE_P(iterable), zend_ce_traversable);
 		default:
 			return 0;
 	}
@@ -4299,7 +4299,7 @@ ZEND_API zend_bool zend_is_countable(zval *countable) /* {{{ */
 				return 1;
 			}
 
-			return instanceof_function(Z_OBJCE_P(countable), zend_ce_countable);
+			return zend_class_implements_interface(Z_OBJCE_P(countable), zend_ce_countable);
 		default:
 			return 0;
 	}