Speed-up of ZEND_DO_FCALL and ZEND_INIT_FCALL_BY_NAME by lowercasing and calculating hash values at compile time.

4 files changed, 164 insertions, 165 deletions

diff --git a/Zend/zend_compile.c b/Zend/zend_compile.c
index 761e56b3cc..84e1181e8c 100644
--- a/Zend/zend_compile.c
+++ b/Zend/zend_compile.c
@@ -1446,8 +1446,16 @@ void zend_do_begin_method_call(znode *left_bracket TSRMLS_DC)
 		zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
 		opline->opcode = ZEND_INIT_FCALL_BY_NAME;
 		opline->op2 = *left_bracket;
-		opline->extended_value = 0;
-		SET_UNUSED(opline->op1);
+		if (opline->op2.op_type == IS_CONST) {
+			opline->op1.op_type = IS_CONST;
+			Z_TYPE(opline->op1.u.constant) = IS_STRING;
+			Z_STRVAL(opline->op1.u.constant) = zend_str_tolower_dup(Z_STRVAL(opline->op2.u.constant), Z_STRLEN(opline->op2.u.constant));
+			Z_STRLEN(opline->op1.u.constant) = Z_STRLEN(opline->op2.u.constant);
+			opline->extended_value = zend_hash_func(Z_STRVAL(opline->op1.u.constant), Z_STRLEN(opline->op1.u.constant) + 1);
+		} else {
+			opline->extended_value = 0;
+			SET_UNUSED(opline->op1);
+		}
 	}
 
 	zend_stack_push(&CG(function_call_stack), (void *) &ptr, sizeof(zend_function *));
@@ -1474,19 +1482,42 @@ void zend_do_begin_dynamic_function_call(znode *function_name, int prefix_len TS
 	zend_op *opline;
 
 	opline = get_next_op(CG(active_op_array) TSRMLS_CC);
-	opline->opcode = ZEND_INIT_FCALL_BY_NAME;
-	opline->op2 = *function_name;
-	opline->extended_value = 0;
 
 	if (prefix_len) {
 		/* In run-time PHP will check for function with full name and
 		   internal function with short name */
+		opline->opcode = ZEND_INIT_NS_FCALL_BY_NAME;
+		opline->op2 = *function_name;
+		opline->extended_value = 0;
 		opline->op1.op_type = IS_CONST;
-		ZVAL_LONG(&opline->op1.u.constant, prefix_len);
+		Z_TYPE(opline->op1.u.constant) = IS_STRING;
+		Z_STRVAL(opline->op1.u.constant) = zend_str_tolower_dup(Z_STRVAL(opline->op2.u.constant), Z_STRLEN(opline->op2.u.constant));
+		Z_STRLEN(opline->op1.u.constant) = Z_STRLEN(opline->op2.u.constant);
+		opline->extended_value = zend_hash_func(Z_STRVAL(opline->op1.u.constant), Z_STRLEN(opline->op1.u.constant) + 1);
+		opline = get_next_op(CG(active_op_array) TSRMLS_CC);
+		opline->opcode = ZEND_OP_DATA;
+		opline->op1.op_type = IS_CONST;
+		Z_TYPE(opline->op1.u.constant) = IS_STRING;
+		Z_STRLEN(opline->op1.u.constant) = Z_STRLEN(function_name->u.constant) - prefix_len;
+		Z_STRVAL(opline->op1.u.constant) = zend_str_tolower_dup(Z_STRVAL(function_name->u.constant) + prefix_len, Z_STRLEN(opline->op1.u.constant));
+		opline->extended_value = zend_hash_func(Z_STRVAL(opline->op1.u.constant), Z_STRLEN(opline->op1.u.constant) + 1);
 	} else {
-		SET_UNUSED(opline->op1);
+		opline->opcode = ZEND_INIT_FCALL_BY_NAME;
+		opline->op2 = *function_name;
+		if (opline->op2.op_type == IS_CONST) {
+			opline->op1.op_type = IS_CONST;
+			Z_TYPE(opline->op1.u.constant) = IS_STRING;
+			Z_STRVAL(opline->op1.u.constant) = zend_str_tolower_dup(Z_STRVAL(opline->op2.u.constant), Z_STRLEN(opline->op2.u.constant));
+			Z_STRLEN(opline->op1.u.constant) = Z_STRLEN(opline->op2.u.constant);
+			opline->extended_value = zend_hash_func(Z_STRVAL(opline->op1.u.constant), Z_STRLEN(opline->op1.u.constant) + 1);
+		} else {
+			opline->extended_value = 0;
+			SET_UNUSED(opline->op1);
+		}
 	}
 
+
+
 	zend_stack_push(&CG(function_call_stack), (void *) &ptr, sizeof(zend_function *));
 	zend_do_extended_fcall_begin(TSRMLS_C);
 }
@@ -1731,6 +1762,7 @@ void zend_do_end_function_call(znode *function_name, znode *result, znode *argum
 		if (!is_method && !is_dynamic_fcall && function_name->op_type==IS_CONST) {
 			opline->opcode = ZEND_DO_FCALL;
 			opline->op1 = *function_name;
+			ZVAL_LONG(&opline->op2.u.constant, zend_hash_func(Z_STRVAL(function_name->u.constant), Z_STRLEN(function_name->u.constant) + 1));
 		} else {
 			opline->opcode = ZEND_DO_FCALL_BY_NAME;
 			SET_UNUSED(opline->op1);
@@ -3654,6 +3686,7 @@ void zend_do_shell_exec(znode *result, znode *cmd TSRMLS_DC)
 	opline->op1.op_type = IS_CONST;
 	opline->extended_value = 1;
 	SET_UNUSED(opline->op2);
+	ZVAL_LONG(&opline->op2.u.constant, zend_hash_func("shell_exec", sizeof("shell_exec")));
 	*result = opline->result;
 }
 
diff --git a/Zend/zend_vm_def.h b/Zend/zend_vm_def.h
index 8c33e7d24b..e94676461d 100644
--- a/Zend/zend_vm_def.h
+++ b/Zend/zend_vm_def.h
@@ -1876,60 +1876,65 @@ ZEND_VM_HANDLER(59, ZEND_INIT_FCALL_BY_NAME, ANY, CONST|TMP|VAR|CV)
 {
 	zend_op *opline = EX(opline);
 	zval *function_name;
-	zend_function *function;
 	char *function_name_strval, *lcname;
 	int function_name_strlen;
 	zend_free_op free_op2;
+	int ret;
 
 	zend_ptr_stack_3_push(&EG(arg_types_stack), EX(fbc), EX(object), EX(called_scope));
 
 	if (OP2_TYPE == IS_CONST) {
-		function_name_strval = opline->op2.u.constant.value.str.val;
-		function_name_strlen = opline->op2.u.constant.value.str.len;
+		function_name_strval = Z_STRVAL(opline->op2.u.constant);
+		ret = zend_hash_quick_find(EG(function_table), Z_STRVAL(opline->op1.u.constant), Z_STRLEN(opline->op1.u.constant)+1, opline->extended_value, (void **) &EX(fbc));
 	} else {
 		function_name = GET_OP2_ZVAL_PTR(BP_VAR_R);
 
 		if (Z_TYPE_P(function_name) != IS_STRING) {
 			zend_error_noreturn(E_ERROR, "Function name must be a string");
 		}
-		function_name_strval = function_name->value.str.val;
-		function_name_strlen = function_name->value.str.len;
-	}
-
-	if (OP2_TYPE != IS_CONST &&
-	    function_name_strval[0] == ':' &&
-	    function_name_strval[1] == ':') {
-
-	    function_name_strlen -= 2;
-		lcname = zend_str_tolower_dup(function_name_strval + 2, function_name_strlen);
-	} else {
-		lcname = zend_str_tolower_dup(function_name_strval, function_name_strlen);
-	}
-	if (zend_hash_find(EG(function_table), lcname, function_name_strlen+1, (void **) &function)==FAILURE) {
-		efree(lcname);
+		function_name_strval = Z_STRVAL_P(function_name);
+		function_name_strlen = Z_STRLEN_P(function_name);
+		if (function_name_strval[0] == ':' &&
+		    function_name_strval[1] == ':') {
 
-		if (OP2_TYPE == IS_CONST && opline->op1.op_type == IS_CONST) {
-			function_name_strlen -= Z_LVAL(opline->op1.u.constant);
-			lcname = zend_str_tolower_dup(function_name_strval + Z_LVAL(opline->op1.u.constant), function_name_strlen);
-			if (zend_hash_find(EG(function_table), lcname, function_name_strlen+1, (void **) &function)==FAILURE ||
-			    function->type != ZEND_INTERNAL_FUNCTION) {
-				efree(lcname);
-				zend_error_noreturn(E_ERROR, "Call to undefined function %s()", function_name_strval);
-			}
+		    function_name_strlen -= 2;
+			lcname = zend_str_tolower_dup(function_name_strval + 2, function_name_strlen);
 		} else {
-			zend_error_noreturn(E_ERROR, "Call to undefined function %s()", function_name_strval);
+			lcname = zend_str_tolower_dup(function_name_strval, function_name_strlen);
 		}
+		ret = zend_hash_find(EG(function_table), lcname, function_name_strlen+1, (void **) &EX(fbc));
+		efree(lcname);
+	}
+
+	if (ret == FAILURE) {
+		zend_error_noreturn(E_ERROR, "Call to undefined function %s()", function_name_strval);
 	}
 
-	efree(lcname);
 	if (OP2_TYPE != IS_CONST) {
 		FREE_OP2();
 	}
 
 	EX(object) = NULL;
+	ZEND_VM_NEXT_OPCODE();
+}
+
 
-	EX(fbc) = function;
+ZEND_VM_HANDLER(69, ZEND_INIT_NS_FCALL_BY_NAME, ANY, CONST)
+{
+	zend_op *opline = EX(opline);
+	zend_op *op_data = opline + 1;
 
+	ZEND_VM_INC_OPCODE();
+	zend_ptr_stack_3_push(&EG(arg_types_stack), EX(fbc), EX(object), EX(called_scope));
+
+	if (zend_hash_quick_find(EG(function_table), Z_STRVAL(opline->op1.u.constant), Z_STRLEN(opline->op1.u.constant)+1, opline->extended_value, (void **) &EX(fbc))==FAILURE) {
+		if (zend_hash_quick_find(EG(function_table), Z_STRVAL(op_data->op1.u.constant), Z_STRLEN(op_data->op1.u.constant)+1, op_data->extended_value, (void **) &EX(fbc))==FAILURE ||
+		    EX(fbc)->type != ZEND_INTERNAL_FUNCTION) {
+			zend_error_noreturn(E_ERROR, "Call to undefined function %s()", Z_STRVAL(opline->op2.u.constant));
+		}
+	}
+
+	EX(object) = NULL;
 	ZEND_VM_NEXT_OPCODE();
 }
 
@@ -2134,7 +2139,7 @@ ZEND_VM_HANDLER(60, ZEND_DO_FCALL, CONST, ANY)
 
 	zend_ptr_stack_3_push(&EG(arg_types_stack), EX(fbc), EX(object), EX(called_scope));
 
-	if (zend_hash_find(EG(function_table), fname->value.str.val, fname->value.str.len+1, (void **) &EX(function_state).function)==FAILURE) {
+	if (zend_hash_quick_find(EG(function_table), fname->value.str.val, fname->value.str.len+1, Z_LVAL(opline->op2.u.constant), (void **) &EX(function_state).function)==FAILURE) {
 		zend_error_noreturn(E_ERROR, "Call to undefined function %s()", fname->value.str.val);
 	}
 	EX(object) = NULL;
diff --git a/Zend/zend_vm_execute.h b/Zend/zend_vm_execute.h
index 45f879ea16..098aaa6f35 100644
--- a/Zend/zend_vm_execute.h
+++ b/Zend/zend_vm_execute.h
@@ -648,60 +648,65 @@ static int ZEND_INIT_FCALL_BY_NAME_SPEC_CONST_HANDLER(ZEND_OPCODE_HANDLER_ARGS)
 {
 	zend_op *opline = EX(opline);
 	zval *function_name;
-	zend_function *function;
 	char *function_name_strval, *lcname;
 	int function_name_strlen;
 
+	int ret;
 
 	zend_ptr_stack_3_push(&EG(arg_types_stack), EX(fbc), EX(object), EX(called_scope));
 
 	if (IS_CONST == IS_CONST) {
-		function_name_strval = opline->op2.u.constant.value.str.val;
-		function_name_strlen = opline->op2.u.constant.value.str.len;
+		function_name_strval = Z_STRVAL(opline->op2.u.constant);
+		ret = zend_hash_quick_find(EG(function_table), Z_STRVAL(opline->op1.u.constant), Z_STRLEN(opline->op1.u.constant)+1, opline->extended_value, (void **) &EX(fbc));
 	} else {
 		function_name = &opline->op2.u.constant;
 
 		if (Z_TYPE_P(function_name) != IS_STRING) {
 			zend_error_noreturn(E_ERROR, "Function name must be a string");
 		}
-		function_name_strval = function_name->value.str.val;
-		function_name_strlen = function_name->value.str.len;
-	}
-
-	if (IS_CONST != IS_CONST &&
-	    function_name_strval[0] == ':' &&
-	    function_name_strval[1] == ':') {
-
-	    function_name_strlen -= 2;
-		lcname = zend_str_tolower_dup(function_name_strval + 2, function_name_strlen);
-	} else {
-		lcname = zend_str_tolower_dup(function_name_strval, function_name_strlen);
-	}
-	if (zend_hash_find(EG(function_table), lcname, function_name_strlen+1, (void **) &function)==FAILURE) {
-		efree(lcname);
+		function_name_strval = Z_STRVAL_P(function_name);
+		function_name_strlen = Z_STRLEN_P(function_name);
+		if (function_name_strval[0] == ':' &&
+		    function_name_strval[1] == ':') {
 
-		if (IS_CONST == IS_CONST && opline->op1.op_type == IS_CONST) {
-			function_name_strlen -= Z_LVAL(opline->op1.u.constant);
-			lcname = zend_str_tolower_dup(function_name_strval + Z_LVAL(opline->op1.u.constant), function_name_strlen);
-			if (zend_hash_find(EG(function_table), lcname, function_name_strlen+1, (void **) &function)==FAILURE ||
-			    function->type != ZEND_INTERNAL_FUNCTION) {
-				efree(lcname);
-				zend_error_noreturn(E_ERROR, "Call to undefined function %s()", function_name_strval);
-			}
+		    function_name_strlen -= 2;
+			lcname = zend_str_tolower_dup(function_name_strval + 2, function_name_strlen);
 		} else {
-			zend_error_noreturn(E_ERROR, "Call to undefined function %s()", function_name_strval);
+			lcname = zend_str_tolower_dup(function_name_strval, function_name_strlen);
 		}
+		ret = zend_hash_find(EG(function_table), lcname, function_name_strlen+1, (void **) &EX(fbc));
+		efree(lcname);
+	}
+
+	if (ret == FAILURE) {
+		zend_error_noreturn(E_ERROR, "Call to undefined function %s()", function_name_strval);
 	}
 
-	efree(lcname);
 	if (IS_CONST != IS_CONST) {
 
 	}
 
 	EX(object) = NULL;
+	ZEND_VM_NEXT_OPCODE();
+}
+
+
+static int ZEND_INIT_NS_FCALL_BY_NAME_SPEC_CONST_HANDLER(ZEND_OPCODE_HANDLER_ARGS)
+{
+	zend_op *opline = EX(opline);
+	zend_op *op_data = opline + 1;
 
-	EX(fbc) = function;
+	ZEND_VM_INC_OPCODE();
+	zend_ptr_stack_3_push(&EG(arg_types_stack), EX(fbc), EX(object), EX(called_scope));
+
+	if (zend_hash_quick_find(EG(function_table), Z_STRVAL(opline->op1.u.constant), Z_STRLEN(opline->op1.u.constant)+1, opline->extended_value, (void **) &EX(fbc))==FAILURE) {
+		if (zend_hash_quick_find(EG(function_table), Z_STRVAL(op_data->op1.u.constant), Z_STRLEN(op_data->op1.u.constant)+1, op_data->extended_value, (void **) &EX(fbc))==FAILURE ||
+		    EX(fbc)->type != ZEND_INTERNAL_FUNCTION) {
+			zend_error_noreturn(E_ERROR, "Call to undefined function %s()", Z_STRVAL(opline->op2.u.constant));
+		}
+	}
 
+	EX(object) = NULL;
 	ZEND_VM_NEXT_OPCODE();
 }
 
@@ -807,60 +812,45 @@ static int ZEND_INIT_FCALL_BY_NAME_SPEC_TMP_HANDLER(ZEND_OPCODE_HANDLER_ARGS)
 {
 	zend_op *opline = EX(opline);
 	zval *function_name;
-	zend_function *function;
 	char *function_name_strval, *lcname;
 	int function_name_strlen;
 	zend_free_op free_op2;
+	int ret;
 
 	zend_ptr_stack_3_push(&EG(arg_types_stack), EX(fbc), EX(object), EX(called_scope));
 
 	if (IS_TMP_VAR == IS_CONST) {
-		function_name_strval = opline->op2.u.constant.value.str.val;
-		function_name_strlen = opline->op2.u.constant.value.str.len;
+		function_name_strval = Z_STRVAL(opline->op2.u.constant);
+		ret = zend_hash_quick_find(EG(function_table), Z_STRVAL(opline->op1.u.constant), Z_STRLEN(opline->op1.u.constant)+1, opline->extended_value, (void **) &EX(fbc));
 	} else {
 		function_name = _get_zval_ptr_tmp(&opline->op2, EX(Ts), &free_op2 TSRMLS_CC);
 
 		if (Z_TYPE_P(function_name) != IS_STRING) {
 			zend_error_noreturn(E_ERROR, "Function name must be a string");
 		}
-		function_name_strval = function_name->value.str.val;
-		function_name_strlen = function_name->value.str.len;
-	}
-
-	if (IS_TMP_VAR != IS_CONST &&
-	    function_name_strval[0] == ':' &&
-	    function_name_strval[1] == ':') {
+		function_name_strval = Z_STRVAL_P(function_name);
+		function_name_strlen = Z_STRLEN_P(function_name);
+		if (function_name_strval[0] == ':' &&
+		    function_name_strval[1] == ':') {
 
-	    function_name_strlen -= 2;
-		lcname = zend_str_tolower_dup(function_name_strval + 2, function_name_strlen);
-	} else {
-		lcname = zend_str_tolower_dup(function_name_strval, function_name_strlen);
-	}
-	if (zend_hash_find(EG(function_table), lcname, function_name_strlen+1, (void **) &function)==FAILURE) {
-		efree(lcname);
-
-		if (IS_TMP_VAR == IS_CONST && opline->op1.op_type == IS_CONST) {
-			function_name_strlen -= Z_LVAL(opline->op1.u.constant);
-			lcname = zend_str_tolower_dup(function_name_strval + Z_LVAL(opline->op1.u.constant), function_name_strlen);
-			if (zend_hash_find(EG(function_table), lcname, function_name_strlen+1, (void **) &function)==FAILURE ||
-			    function->type != ZEND_INTERNAL_FUNCTION) {
-				efree(lcname);
-				zend_error_noreturn(E_ERROR, "Call to undefined function %s()", function_name_strval);
-			}
+		    function_name_strlen -= 2;
+			lcname = zend_str_tolower_dup(function_name_strval + 2, function_name_strlen);
 		} else {
-			zend_error_noreturn(E_ERROR, "Call to undefined function %s()", function_name_strval);
+			lcname = zend_str_tolower_dup(function_name_strval, function_name_strlen);
 		}
+		ret = zend_hash_find(EG(function_table), lcname, function_name_strlen+1, (void **) &EX(fbc));
+		efree(lcname);
+	}
+
+	if (ret == FAILURE) {
+		zend_error_noreturn(E_ERROR, "Call to undefined function %s()", function_name_strval);
 	}
 
-	efree(lcname);
 	if (IS_TMP_VAR != IS_CONST) {
 		zval_dtor(free_op2.var);
 	}
 
 	EX(object) = NULL;
-
-	EX(fbc) = function;
-
 	ZEND_VM_NEXT_OPCODE();
 }
 
@@ -923,60 +913,45 @@ static int ZEND_INIT_FCALL_BY_NAME_SPEC_VAR_HANDLER(ZEND_OPCODE_HANDLER_ARGS)
 {
 	zend_op *opline = EX(opline);
 	zval *function_name;
-	zend_function *function;
 	char *function_name_strval, *lcname;
 	int function_name_strlen;
 	zend_free_op free_op2;
+	int ret;
 
 	zend_ptr_stack_3_push(&EG(arg_types_stack), EX(fbc), EX(object), EX(called_scope));
 
 	if (IS_VAR == IS_CONST) {
-		function_name_strval = opline->op2.u.constant.value.str.val;
-		function_name_strlen = opline->op2.u.constant.value.str.len;
+		function_name_strval = Z_STRVAL(opline->op2.u.constant);
+		ret = zend_hash_quick_find(EG(function_table), Z_STRVAL(opline->op1.u.constant), Z_STRLEN(opline->op1.u.constant)+1, opline->extended_value, (void **) &EX(fbc));
 	} else {
 		function_name = _get_zval_ptr_var(&opline->op2, EX(Ts), &free_op2 TSRMLS_CC);
 
 		if (Z_TYPE_P(function_name) != IS_STRING) {
 			zend_error_noreturn(E_ERROR, "Function name must be a string");
 		}
-		function_name_strval = function_name->value.str.val;
-		function_name_strlen = function_name->value.str.len;
-	}
-
-	if (IS_VAR != IS_CONST &&
-	    function_name_strval[0] == ':' &&
-	    function_name_strval[1] == ':') {
-
-	    function_name_strlen -= 2;
-		lcname = zend_str_tolower_dup(function_name_strval + 2, function_name_strlen);
-	} else {
-		lcname = zend_str_tolower_dup(function_name_strval, function_name_strlen);
-	}
-	if (zend_hash_find(EG(function_table), lcname, function_name_strlen+1, (void **) &function)==FAILURE) {
-		efree(lcname);
+		function_name_strval = Z_STRVAL_P(function_name);
+		function_name_strlen = Z_STRLEN_P(function_name);
+		if (function_name_strval[0] == ':' &&
+		    function_name_strval[1] == ':') {
 
-		if (IS_VAR == IS_CONST && opline->op1.op_type == IS_CONST) {
-			function_name_strlen -= Z_LVAL(opline->op1.u.constant);
-			lcname = zend_str_tolower_dup(function_name_strval + Z_LVAL(opline->op1.u.constant), function_name_strlen);
-			if (zend_hash_find(EG(function_table), lcname, function_name_strlen+1, (void **) &function)==FAILURE ||
-			    function->type != ZEND_INTERNAL_FUNCTION) {
-				efree(lcname);
-				zend_error_noreturn(E_ERROR, "Call to undefined function %s()", function_name_strval);
-			}
+		    function_name_strlen -= 2;
+			lcname = zend_str_tolower_dup(function_name_strval + 2, function_name_strlen);
 		} else {
-			zend_error_noreturn(E_ERROR, "Call to undefined function %s()", function_name_strval);
+			lcname = zend_str_tolower_dup(function_name_strval, function_name_strlen);
 		}
+		ret = zend_hash_find(EG(function_table), lcname, function_name_strlen+1, (void **) &EX(fbc));
+		efree(lcname);
+	}
+
+	if (ret == FAILURE) {
+		zend_error_noreturn(E_ERROR, "Call to undefined function %s()", function_name_strval);
 	}
 
-	efree(lcname);
 	if (IS_VAR != IS_CONST) {
 		if (free_op2.var) {zval_ptr_dtor(&free_op2.var);};
 	}
 
 	EX(object) = NULL;
-
-	EX(fbc) = function;
-
 	ZEND_VM_NEXT_OPCODE();
 }
 
@@ -1067,60 +1042,45 @@ static int ZEND_INIT_FCALL_BY_NAME_SPEC_CV_HANDLER(ZEND_OPCODE_HANDLER_ARGS)
 {
 	zend_op *opline = EX(opline);
 	zval *function_name;
-	zend_function *function;
 	char *function_name_strval, *lcname;
 	int function_name_strlen;
 
+	int ret;
 
 	zend_ptr_stack_3_push(&EG(arg_types_stack), EX(fbc), EX(object), EX(called_scope));
 
 	if (IS_CV == IS_CONST) {
-		function_name_strval = opline->op2.u.constant.value.str.val;
-		function_name_strlen = opline->op2.u.constant.value.str.len;
+		function_name_strval = Z_STRVAL(opline->op2.u.constant);
+		ret = zend_hash_quick_find(EG(function_table), Z_STRVAL(opline->op1.u.constant), Z_STRLEN(opline->op1.u.constant)+1, opline->extended_value, (void **) &EX(fbc));
 	} else {
 		function_name = _get_zval_ptr_cv(&opline->op2, EX(Ts), BP_VAR_R TSRMLS_CC);
 
 		if (Z_TYPE_P(function_name) != IS_STRING) {
 			zend_error_noreturn(E_ERROR, "Function name must be a string");
 		}
-		function_name_strval = function_name->value.str.val;
-		function_name_strlen = function_name->value.str.len;
-	}
-
-	if (IS_CV != IS_CONST &&
-	    function_name_strval[0] == ':' &&
-	    function_name_strval[1] == ':') {
+		function_name_strval = Z_STRVAL_P(function_name);
+		function_name_strlen = Z_STRLEN_P(function_name);
+		if (function_name_strval[0] == ':' &&
+		    function_name_strval[1] == ':') {
 
-	    function_name_strlen -= 2;
-		lcname = zend_str_tolower_dup(function_name_strval + 2, function_name_strlen);
-	} else {
-		lcname = zend_str_tolower_dup(function_name_strval, function_name_strlen);
-	}
-	if (zend_hash_find(EG(function_table), lcname, function_name_strlen+1, (void **) &function)==FAILURE) {
-		efree(lcname);
-
-		if (IS_CV == IS_CONST && opline->op1.op_type == IS_CONST) {
-			function_name_strlen -= Z_LVAL(opline->op1.u.constant);
-			lcname = zend_str_tolower_dup(function_name_strval + Z_LVAL(opline->op1.u.constant), function_name_strlen);
-			if (zend_hash_find(EG(function_table), lcname, function_name_strlen+1, (void **) &function)==FAILURE ||
-			    function->type != ZEND_INTERNAL_FUNCTION) {
-				efree(lcname);
-				zend_error_noreturn(E_ERROR, "Call to undefined function %s()", function_name_strval);
-			}
+		    function_name_strlen -= 2;
+			lcname = zend_str_tolower_dup(function_name_strval + 2, function_name_strlen);
 		} else {
-			zend_error_noreturn(E_ERROR, "Call to undefined function %s()", function_name_strval);
+			lcname = zend_str_tolower_dup(function_name_strval, function_name_strlen);
 		}
+		ret = zend_hash_find(EG(function_table), lcname, function_name_strlen+1, (void **) &EX(fbc));
+		efree(lcname);
+	}
+
+	if (ret == FAILURE) {
+		zend_error_noreturn(E_ERROR, "Call to undefined function %s()", function_name_strval);
 	}
 
-	efree(lcname);
 	if (IS_CV != IS_CONST) {
 
 	}
 
 	EX(object) = NULL;
-
-	EX(fbc) = function;
-
 	ZEND_VM_NEXT_OPCODE();
 }
 
@@ -1420,7 +1380,7 @@ static int ZEND_DO_FCALL_SPEC_CONST_HANDLER(ZEND_OPCODE_HANDLER_ARGS)
 
 	zend_ptr_stack_3_push(&EG(arg_types_stack), EX(fbc), EX(object), EX(called_scope));
 
-	if (zend_hash_find(EG(function_table), fname->value.str.val, fname->value.str.len+1, (void **) &EX(function_state).function)==FAILURE) {
+	if (zend_hash_quick_find(EG(function_table), fname->value.str.val, fname->value.str.len+1, Z_LVAL(opline->op2.u.constant), (void **) &EX(function_state).function)==FAILURE) {
 		zend_error_noreturn(E_ERROR, "Call to undefined function %s()", fname->value.str.val);
 	}
 	EX(object) = NULL;
@@ -29742,27 +29702,27 @@ void zend_init_opcodes_handlers(void)
   	ZEND_NEW_SPEC_HANDLER,
   	ZEND_NEW_SPEC_HANDLER,
   	ZEND_NEW_SPEC_HANDLER,
+  	ZEND_INIT_NS_FCALL_BY_NAME_SPEC_CONST_HANDLER,
   	ZEND_NULL_HANDLER,
   	ZEND_NULL_HANDLER,
   	ZEND_NULL_HANDLER,
   	ZEND_NULL_HANDLER,
+  	ZEND_INIT_NS_FCALL_BY_NAME_SPEC_CONST_HANDLER,
   	ZEND_NULL_HANDLER,
   	ZEND_NULL_HANDLER,
   	ZEND_NULL_HANDLER,
   	ZEND_NULL_HANDLER,
+  	ZEND_INIT_NS_FCALL_BY_NAME_SPEC_CONST_HANDLER,
   	ZEND_NULL_HANDLER,
   	ZEND_NULL_HANDLER,
   	ZEND_NULL_HANDLER,
   	ZEND_NULL_HANDLER,
+  	ZEND_INIT_NS_FCALL_BY_NAME_SPEC_CONST_HANDLER,
   	ZEND_NULL_HANDLER,
   	ZEND_NULL_HANDLER,
   	ZEND_NULL_HANDLER,
   	ZEND_NULL_HANDLER,
-  	ZEND_NULL_HANDLER,
-  	ZEND_NULL_HANDLER,
-  	ZEND_NULL_HANDLER,
-  	ZEND_NULL_HANDLER,
-  	ZEND_NULL_HANDLER,
+  	ZEND_INIT_NS_FCALL_BY_NAME_SPEC_CONST_HANDLER,
   	ZEND_NULL_HANDLER,
   	ZEND_NULL_HANDLER,
   	ZEND_NULL_HANDLER,
diff --git a/Zend/zend_vm_opcodes.h b/Zend/zend_vm_opcodes.h
index d663ea6d55..7b11303639 100644
--- a/Zend/zend_vm_opcodes.h
+++ b/Zend/zend_vm_opcodes.h
@@ -87,6 +87,7 @@
 #define ZEND_SEND_VAR                 66
 #define ZEND_SEND_REF                 67
 #define ZEND_NEW                      68
+#define ZEND_INIT_NS_FCALL_BY_NAME    69
 #define ZEND_FREE                     70
 #define ZEND_INIT_ARRAY               71
 #define ZEND_ADD_ARRAY_ELEMENT        72