Removed useless IS_UNDEF checks

Zend/zend_interfaces.c

@@ -161,12 +161,10 @@ ZEND_API int zend_user_it_valid(zend_object_iterator *_iter)
 		int result;
 
 		zend_call_method_with_0_params(object, iter->ce, &iter->ce->iterator_funcs_ptr->zf_valid, "valid", &more);
-		if (Z_TYPE(more) != IS_UNDEF) {
 		result = i_zend_is_true(&more);
 		zval_ptr_dtor(&more);
 		return result ? SUCCESS : FAILURE;
 	}
-	}
 	return FAILURE;
 }
 /* }}} */

Zend/zend_object_handlers.c

@@ -909,19 +909,13 @@ ZEND_API int zend_std_has_dimension(zval *object, zval *offset, int check_empty)
 		ZVAL_COPY_DEREF(&tmp_offset, offset);
 		ZVAL_COPY(&tmp_object, object);
 		zend_call_method_with_1_params(&tmp_object, ce, NULL, "offsetexists", &retval, &tmp_offset);
-		if (EXPECTED(Z_TYPE(retval) != IS_UNDEF)) {
 		result = i_zend_is_true(&retval);
 		zval_ptr_dtor(&retval);
 		if (check_empty && result && EXPECTED(!EG(exception))) {
 			zend_call_method_with_1_params(&tmp_object, ce, NULL, "offsetget", &retval, &tmp_offset);
-				if (EXPECTED(Z_TYPE(retval) != IS_UNDEF)) {
 			result = i_zend_is_true(&retval);
 			zval_ptr_dtor(&retval);
 		}
-			}
-		} else {
-			result = 0;
-		}
 		zval_ptr_dtor(&tmp_object);
 		zval_ptr_dtor(&tmp_offset);
 	} else {
@@ -1690,7 +1684,6 @@ found:
 			GC_ADDREF(zobj);
 			(*guard) |= IN_ISSET; /* prevent circular getting */
 			zend_std_call_issetter(zobj, member, &rv);
-			if (Z_TYPE(rv) != IS_UNDEF) {
 			result = zend_is_true(&rv);
 			zval_ptr_dtor(&rv);
 			if (has_set_exists == ZEND_PROPERTY_NOT_EMPTY && result) {
@@ -1698,16 +1691,11 @@ found:
 					(*guard) |= IN_GET;
 					zend_std_call_getter(zobj, member, &rv);
 					(*guard) &= ~IN_GET;
-						if (Z_TYPE(rv) != IS_UNDEF) {
 					result = i_zend_is_true(&rv);
 					zval_ptr_dtor(&rv);
 				} else {
 					result = 0;
 				}
-					} else {
-						result = 0;
-					}
-				}
 			}
 			(*guard) &= ~IN_ISSET;
 			OBJ_RELEASE(zobj);

ext/spl/spl_array.c

@@ -617,7 +617,7 @@ static int spl_array_has_dimension_ex(int check_inherited, zval *object, zval *o
 		zend_call_method_with_1_params(object, Z_OBJCE_P(object), &intern->fptr_offset_has, "offsetExists", &rv, offset);
 		zval_ptr_dtor(offset);
 
-		if (!Z_ISUNDEF(rv) && zend_is_true(&rv)) {
+		if (zend_is_true(&rv)) {
 			zval_ptr_dtor(&rv);
 			if (check_empty != 1) {
 				return 1;

ext/spl/spl_directory.c

@@ -846,10 +846,8 @@ SPL_METHOD(DirectoryIterator, seek)
 	while (intern->u.dir.index < pos) {
 		int valid = 0;
 		zend_call_method_with_0_params(&EX(This), Z_OBJCE(EX(This)), &intern->u.dir.func_valid, "valid", &retval);
-		if (!Z_ISUNDEF(retval)) {
 		valid = zend_is_true(&retval);
 		zval_ptr_dtor(&retval);
-		}
 		if (!valid) {
 			zend_throw_exception_ex(spl_ce_OutOfBoundsException, 0, "Seek position " ZEND_LONG_FMT " is out of range", pos);
 			return;

ext/spl/spl_fixedarray.c

@@ -507,16 +507,15 @@ static int spl_fixedarray_object_has_dimension(zval *object, zval *offset, int c
 
 	if (intern->fptr_offset_has) {
 		zval rv;
+		zend_bool result;
+
 		SEPARATE_ARG_IF_REF(offset);
 		zend_call_method_with_1_params(object, intern->std.ce, &intern->fptr_offset_has, "offsetExists", &rv, offset);
 		zval_ptr_dtor(offset);
-		if (!Z_ISUNDEF(rv)) {
+		result = zend_is_true(&rv);
-			zend_bool result = zend_is_true(&rv);
 		zval_ptr_dtor(&rv);
 		return result;
 	}
-		return 0;
-	}
 
 	return spl_fixedarray_object_has_dimension_helper(intern, offset, check_empty);
 }

ext/spl/spl_iterators.c

@@ -3644,12 +3644,8 @@ static int spl_iterator_func_apply(zend_object_iterator *iter, void *puser) /* {
 
 	apply_info->count++;
 	zend_fcall_info_call(&apply_info->fci, &apply_info->fcc, &retval, NULL);
-	if (Z_TYPE(retval) != IS_UNDEF) {
 	result = zend_is_true(&retval) ? ZEND_HASH_APPLY_KEEP : ZEND_HASH_APPLY_STOP;
 	zval_ptr_dtor(&retval);
-	} else {
-		result = ZEND_HASH_APPLY_STOP;
-	}
 	return result;
 }
 /* }}} */

ext/standard/array.c

@@ -6056,20 +6056,17 @@ PHP_FUNCTION(array_filter)
 			fci.params = args;
 
 			if (zend_call_function(&fci, &fci_cache) == SUCCESS) {
+				int retval_true;
+
 				zval_ptr_dtor(&args[0]);
 				if (use_type == ARRAY_FILTER_USE_BOTH) {
 					zval_ptr_dtor(&args[1]);
 				}
-				if (!Z_ISUNDEF(retval)) {
+				retval_true = zend_is_true(&retval);
-					int retval_true = zend_is_true(&retval);
-
 				zval_ptr_dtor(&retval);
 				if (!retval_true) {
 					continue;
 				}
-				} else {
-					continue;
-				}
 			} else {
 				zval_ptr_dtor(&args[0]);
 				if (use_type == ARRAY_FILTER_USE_BOTH) {

main/streams/userspace.c

@@ -1067,7 +1067,7 @@ static int php_userstreamop_set_option(php_stream *stream, int option, int value
 			php_error_docref(NULL, E_WARNING, "%s::" USERSTREAM_SET_OPTION " is not implemented!",
 					us->wrapper->classname);
 			ret = PHP_STREAM_OPTION_RETURN_ERR;
-		} else if (Z_TYPE(retval) != IS_UNDEF && zend_is_true(&retval)) {
+		} else if (zend_is_true(&retval)) {
 			ret = PHP_STREAM_OPTION_RETURN_OK;
 		} else {
 			ret = PHP_STREAM_OPTION_RETURN_ERR;
@@ -1512,7 +1512,7 @@ static int php_userstreamop_cast(php_stream *stream, int castas, void **retptr)
 					us->wrapper->classname);
 			break;
 		}
-		if (Z_ISUNDEF(retval) || !zend_is_true(&retval)) {
+		if (!zend_is_true(&retval)) {
 			break;
 		}
 		php_stream_from_zval_no_verify(intstream, &retval);