2 * Copyright (C) 1995-2008 University of Karlsruhe. All right reserved.
4 * This file is part of libFirm.
6 * This file may be distributed and/or modified under the terms of the
7 * GNU General Public License version 2 as published by the Free Software
8 * Foundation and appearing in the file LICENSE.GPL included in the
9 * packaging of this file.
11 * Licensees holding valid libFirm Professional Edition licenses may use
12 * this file in accordance with the libFirm Commercial License.
13 * Agreement provided with the Software.
15 * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
16 * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * @brief Backend ABI implementation.
23 * @author Sebastian Hack
25 #ifndef FIRM_BE_BEABI_H
26 #define FIRM_BE_BEABI_H
31 #include "firm_types.h"
33 struct be_abi_call_flags_t {
34 bool try_omit_fp : 1; /**< Try to omit the frame pointer. */
35 bool call_has_imm : 1; /**< A call can take the callee's address as an
39 struct be_abi_callbacks_t {
41 * Get the between type for that call.
42 * @param self The callback object.
43 * @return The between type of for that call.
45 ir_type *(*get_between_type)(ir_graph *irg);
49 * Set the flags for a call.
50 * @param call The call.
51 * @param flags Some flags to be set.
52 * @param cb The call callbacks for that call.
53 * @note The ABI phase might change the flags due to analysis.
55 void be_abi_call_set_flags(be_abi_call_t *call, be_abi_call_flags_t flags, const be_abi_callbacks_t *cb);
58 * Sets the number of bytes the stackframe is shrinked by the callee on return
60 void be_abi_call_set_pop(be_abi_call_t *call, int pop);
63 * The ABI can change when we call a function vs. when we have
67 ABI_CONTEXT_CALLEE = 1 << 0,
68 ABI_CONTEXT_CALLER = 1 << 1,
69 ABI_CONTEXT_BOTH = ABI_CONTEXT_CALLEE | ABI_CONTEXT_CALLER
73 * Record the that ABI transmits call argument pos on the stack. Modifies the abi object.
75 * @param call the abi call object
76 * @param pos the parameter position
77 * @param load_mode load the parameter with this mode (if the parameter mode is different from this mode a Conv is inserted)
78 * @param alignment stack alignment for the parameter on the current architecture
79 * @param space_before size of allocated additional space before the parameter
80 * @param space_after size of allocated additional space after the parameter
82 void be_abi_call_param_stack(be_abi_call_t *call, int pos, ir_mode *load_mode,
83 unsigned alignment, unsigned space_before,
84 unsigned space_after, be_abi_context_t context);
87 * Record the that ABI transmits call argument pos in the given register.
89 * @param call the abi call object
90 * @param pos the parameter position
91 * @param reg the register used
93 void be_abi_call_param_reg(be_abi_call_t *call, int pos,
94 const arch_register_t *reg,
95 be_abi_context_t context);
98 * Record the that ABI transmits return value pos in the given register.
100 * @param call the abi call object
101 * @param pos the return value position
102 * @param reg the register used
104 void be_abi_call_res_reg(be_abi_call_t *call, int pos,
105 const arch_register_t *reg,
106 be_abi_context_t context);
109 * Get the flags of a ABI call object.
110 * Note that the flags must not be the same as set by be_abi_call_set_flags(). Analysis may have
111 * altered several flags, so getting them from the call object is always a good idea.
112 * @param call The call object.
115 be_abi_call_flags_t be_abi_call_get_flags(const be_abi_call_t *call);
117 void be_abi_introduce(ir_graph *irg);