/*
- * Project: libFIRM
- * File name: ir/lower/lower_calls.h
- * Purpose: lowering of Calls with compound parameters
- * Author: Michael Beck
- * Created:
- * CVS-ID: $Id$
- * Copyright: (c) 1998-2005 Universität Karlsruhe
- * Licence: This file protected by GPL - GNU GENERAL PUBLIC LICENSE.
- */
-
-/**
- * @file lower_calls.h
+ * Copyright (C) 1995-2011 University of Karlsruhe. All right reserved.
*
- * Lowering of Calls with compound return types.
+ * This file is part of libFirm.
*
- * @author Michael Beck
- */
-#ifndef _LOWER_CALLS_H_
-#define _LOWER_CALLS_H_
-
-/**
- * A type telling where to add hidden parameters.
+ * This file may be distributed and/or modified under the terms of the
+ * GNU General Public License version 2 as published by the Free Software
+ * Foundation and appearing in the file LICENSE.GPL included in the
+ * packaging of this file.
+ *
+ * Licensees holding valid libFirm Professional Edition licenses may use
+ * this file in accordance with the libFirm Commercial License.
+ * Agreement provided with the Software.
+ *
+ * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+ * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE.
*/
-typedef enum add_hidden_params {
- ADD_HIDDEN_ALWAYS_IN_FRONT = 0, /**< always add hidden parameters in front (default). */
- ADD_HIDDEN_ALWAYS_LAST = 1, /**< always add hidden parameters last, did not work for variadic functions. */
- ADD_HIDDEN_SMART = 2, /**< add hidden parameters last for non-variadic and first for variadic functions. */
-} add_hidden;
/**
- * Additional flags for the lowering.
+ * @file
+ * @brief Lowering of calls with compound arguments
+ * @author Michael Beck
+ * @version $Id$
*/
-enum lowering_flags {
- LF_NONE = 0, /**< no additional flags */
- LF_COMPOUND_PARAM = 1, /**< lower calls with compound parameters */
- LF_COMPOUND_RETURN = 2, /**< lower calls with compound returns */
- LF_RETURN_HIDDEN = 4, /**< return the hidden address instead of void */
- LF_SMALL_CMP_IN_REGS = 8 /**< return small compound values in registers */
-};
+#ifndef FIRM_LOWER_CALLS_H
+#define FIRM_LOWER_CALLS_H
-/** Maximum number of registers that can be used to return compound values. */
-#define MAX_REGISTER_RET_VAL 2
+#include "firm_types.h"
/**
- * A struct containing all control parameters for
- * lower_compound_ret_calls().
+ * Additional flags for the lowering.
*/
-typedef struct {
- int def_ptr_alignment; /**< Default alignment for data pointer. */
- unsigned flags; /**< A bitmask of enum lowering_flags. */
- add_hidden hidden_params; /**< Where to add hidden parameters. */
-
- /**
- * A function returning a pointer type for a given type.
- * If this pointer is NULL, a new pointer type is always created.
- */
- ir_type *(*find_pointer_type)(ir_type *e_type, ir_mode *mode, int alignment);
-
- /**
- * If the LF_SMALL_CMP_IN_REGS flag is set, this function will be called
- * to decide, whether a compound value should be returned in registers.
- * This function must return the number of used registers and fill in the modes
- * of the registers to use. Up to MAX_REGISTER_RET_VAL registers can be used.
- */
- int (*ret_compound_in_regs)(ir_type *compound_tp, ir_mode **modes);
-} lower_params_t;
+typedef enum compound_call_lowering_flags {
+ LF_NONE = 0, /**< no additional flags */
+ LF_RETURN_HIDDEN = 1 << 0, /**< return the hidden address instead of void */
+} compound_call_lowering_flags;
+ENUM_BITSET(compound_call_lowering_flags)
/**
* Lower calls with compound parameter and return types.
ret->a = a;
}
@endcode
- *
- * @param params A structure containing the control parameter for this
- * transformation.
- *
- * During the transformation, pointer types must be created or reused.
- * The caller can provide params->find_pointer_type for this task to
- * reduce the number of created pointer types.
- * If params->find_pointer_type is NULL, new pointer types
- * are always created automatically.
*/
-void lower_calls_with_compounds(const lower_params_t *params);
+void lower_calls_with_compounds(compound_call_lowering_flags flags);
-#endif /* _LOWER_CALLS_H_ */
+#endif