+/*
+ * Copyright (C) 1995-2008 University of Karlsruhe. All right reserved.
+ *
+ * This file is part of libFirm.
+ *
+ * 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.
+ */
/**
- * Backend ABI implementation.
+ * @file
+ * @brief Backend ABI implementation.
+ * @author Sebastian Hack
+ * @version $Id$
*/
-
-#ifndef _BEABI_H
-#define _BEABI_H
+#ifndef FIRM_BE_BEABI_H
+#define FIRM_BE_BEABI_H
#include "firm_types.h"
#include "bitset.h"
#include "be.h"
+#include "beirg.h"
#include "bearch.h"
-#include "beabi_t.h"
+#include "beabi.h"
-struct _be_abi_call_flags_bits_t {
+struct be_abi_call_flags_bits_t {
unsigned left_to_right : 1; /**< Arguments are from left to right. */
unsigned store_args_sequential : 1; /**< Use sequential stores for arguments. */
unsigned try_omit_fp : 1; /**< Try to omit the frame pointer. */
unsigned frame_is_setup_on_call : 1; /**< Set to one, if there is already enough room on the stack for call args. */
};
-union _be_abi_call_flags_t {
+union be_abi_call_flags_t {
be_abi_call_flags_bits_t bits;
unsigned val;
};
-struct _be_abi_callbacks_t {
+struct be_abi_callbacks_t {
/**
* Initialize the callback object.
* @param call The call object.
- * @param aenv The architecture environment.
* @param irg The graph with the method.
* @return Some pointer. This pointer is passed to all other callback functions as self object.
*/
- void *(*init)(const be_abi_call_t *call, const arch_env_t *aenv, ir_graph *irg);
+ void *(*init)(const be_abi_call_t *call, ir_graph *irg);
/**
* Destroy the callback object.
*/
ir_type *(*get_between_type)(void *self);
- /**
- * Put all registers which are saved by the prologue/epilogue in a set.
- * @param self The callback object.
- * @param regs A set.
- */
- void (*regs_saved_by_me)(void *self, pset *regs);
-
/**
* Generate the prologue.
- * @param self The callback object.
- * @param mem A pointer to the mem node. Update this if you define new memory.
- * @param reg_map A mapping mapping all callee_save/ignore/parameter registers to their defining nodes.
- * @return The register which shall be used as a stack frame base.
+ * @param self The callback object.
+ * @param mem A pointer to the mem node. Update this if you define new memory.
+ * @param reg_map A map mapping all callee_save/ignore/parameter registers to their defining nodes.
+ * @param stack_bias Points to the current stack bias, can be modified if needed.
+ * @return The register which shall be used as a stack frame base.
*
* All nodes which define registers in @p reg_map must keep @p reg_map current.
*/
- const arch_register_t *(*prologue)(void *self, ir_node **mem, pmap *reg_map);
+ const arch_register_t *(*prologue)(void *self, ir_node **mem, pmap *reg_map, int *stack_bias);
/**
* Generate the epilogue.
*/
void be_abi_call_set_flags(be_abi_call_t *call, be_abi_call_flags_t flags, const be_abi_callbacks_t *cb);
+/**
+ * Sets the number of bytes the stackframe is shrinked by the callee on return
+ */
+void be_abi_call_set_pop(be_abi_call_t *call, int pop);
+
/**
* Set register class for call address.
* @param call The call.
*/
void be_abi_call_set_call_address_reg_class(be_abi_call_t *call, const arch_register_class_t *cls);
-void be_abi_call_param_stack(be_abi_call_t *call, int pos, unsigned alignment, unsigned space_before, unsigned space_after);
-void be_abi_call_param_reg(be_abi_call_t *call, int pos, const arch_register_t *reg);
-void be_abi_call_res_reg(be_abi_call_t *call, int pos, const arch_register_t *reg);
+/**
+ * The ABI can change when we call a function vs. when we have
+ * been called.
+ */
+typedef enum {
+ ABI_CONTEXT_CALLEE = 1 << 0,
+ ABI_CONTEXT_CALLER = 1 << 1,
+ ABI_CONTEXT_BOTH = ABI_CONTEXT_CALLEE | ABI_CONTEXT_CALLER
+} be_abi_context_t;
+
+/**
+ * Record the that ABI transmits call argument pos on the stack. Modifies the abi object.
+ *
+ * @param call the abi call object
+ * @param pos the parameter position
+ * @param load_mode load the parameter with this mode (if the parameter mode is different from this mode a Conv is inserted)
+ * @param alignment stack alignment for the parameter on the current architecture
+ * @param space_before size of allocated additional space before the parameter
+ * @param space_after size of allocated additional space after the parameter
+ */
+void be_abi_call_param_stack(be_abi_call_t *call, int pos, ir_mode *load_mode,
+ unsigned alignment, unsigned space_before,
+ unsigned space_after, be_abi_context_t context);
+
+/**
+ * Record the that ABI transmits call argument pos in the given register.
+ *
+ * @param call the abi call object
+ * @param pos the parameter position
+ * @param reg the register used
+ */
+void be_abi_call_param_reg(be_abi_call_t *call, int pos,
+ const arch_register_t *reg,
+ be_abi_context_t context);
+
+/**
+ * Record the that ABI transmits return value pos in the given register.
+ *
+ * @param call the abi call object
+ * @param pos the return value position
+ * @param reg the register used
+ */
+void be_abi_call_res_reg(be_abi_call_t *call, int pos,
+ const arch_register_t *reg,
+ be_abi_context_t context);
/**
* Get the flags of a ABI call object.
*/
ir_type *be_abi_call_get_method_type(const be_abi_call_t *call);
-be_abi_irg_t *be_abi_introduce(be_irg_t *bi);
-void be_abi_fix_stack_bias(be_abi_irg_t *env);
-void be_abi_fix_stack_nodes(be_abi_irg_t *env, be_lv_t *lv);
-void be_abi_free(be_abi_irg_t *abi);
+be_abi_irg_t *be_abi_introduce(ir_graph *irg);
+
+void be_abi_free(ir_graph *irg);
/**
* Put the registers which are forbidden specifically for this IRG in a bitset.
*/
void be_abi_put_ignore_regs(be_abi_irg_t *abi, const arch_register_class_t *cls, bitset_t *bs);
+void be_abi_set_non_ignore_regs(be_abi_irg_t *abi, const arch_register_class_t *cls, unsigned *raw_bitset);
+
ir_node *be_abi_get_callee_save_irn(be_abi_irg_t *abi, const arch_register_t *reg);
ir_node *be_abi_get_ignore_irn(be_abi_irg_t *abi, const arch_register_t *reg);
-ir_node *be_abi_get_start_barrier(be_abi_irg_t *abi);
#define be_abi_reg_map_get(map, reg) pmap_get((map), (void *) (reg))
#define be_abi_reg_map_set(map, reg, irn) pmap_insert((map), (void *) (reg), (irn))
-#define N_FRAME_TYPES 3
-
-/**
- * This type describes the stack layout.
- * The stack is divided into 3 parts:
- * - arg_type: A struct type describing the stack arguments and it's order.
- * - between_type: A struct type describing the stack layout between arguments
- * and frame type
- * - frame_type: A class type describing the frame layout
- */
-struct _be_stack_layout_t {
- ir_type *arg_type; /**< A type describing the stack argument layout. */
- ir_type *between_type; /**< A type describing the "between" layout. */
- ir_type *frame_type; /**< The frame type. */
-
- ir_type *order[N_FRAME_TYPES]; /**< arg, between and frame types ordered. */
-
- int initial_offset;
- int stack_dir; /**< -1 for decreasing, 1 for increasing. */
- ir_entity **param_map; /**< An array mapping type parameters to arg_type entries */
-};
-
-/**
- * Returns the stack layout from a abi environment.
- */
-const be_stack_layout_t *be_abi_get_stack_layout(const be_abi_irg_t *abi);
-
-/**
- * Returns non-zero if the ABI has omitted the frame pointer in
- * the current graph.
- */
-int be_abi_omit_fp(const be_abi_irg_t *abi);
-
-#endif /* _BEABI_H */
+#endif
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