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
28 #include "firm_types.h"
38 #include "beabihelper.h"
40 struct be_abi_call_flags_t {
41 bool try_omit_fp : 1; /**< Try to omit the frame pointer. */
42 bool call_has_imm : 1; /**< A call can take the callee's address as an
46 struct be_abi_callbacks_t {
48 * Get the between type for that call.
49 * @param self The callback object.
50 * @return The between type of for that call.
52 ir_type *(*get_between_type)(ir_graph *irg);
56 * Set the flags for a call.
57 * @param call The call.
58 * @param flags Some flags to be set.
59 * @param cb The call callbacks for that call.
60 * @note The ABI phase might change the flags due to analysis.
62 void be_abi_call_set_flags(be_abi_call_t *call, be_abi_call_flags_t flags, const be_abi_callbacks_t *cb);
65 * Sets the number of bytes the stackframe is shrinked by the callee on return
67 void be_abi_call_set_pop(be_abi_call_t *call, int pop);
70 * Set register class for call address.
71 * @param call The call.
72 * @param cls The register class for call address.
74 void be_abi_call_set_call_address_reg_class(be_abi_call_t *call, const arch_register_class_t *cls);
77 * The ABI can change when we call a function vs. when we have
81 ABI_CONTEXT_CALLEE = 1 << 0,
82 ABI_CONTEXT_CALLER = 1 << 1,
83 ABI_CONTEXT_BOTH = ABI_CONTEXT_CALLEE | ABI_CONTEXT_CALLER
87 * Record the that ABI transmits call argument pos on the stack. Modifies the abi object.
89 * @param call the abi call object
90 * @param pos the parameter position
91 * @param load_mode load the parameter with this mode (if the parameter mode is different from this mode a Conv is inserted)
92 * @param alignment stack alignment for the parameter on the current architecture
93 * @param space_before size of allocated additional space before the parameter
94 * @param space_after size of allocated additional space after the parameter
96 void be_abi_call_param_stack(be_abi_call_t *call, int pos, ir_mode *load_mode,
97 unsigned alignment, unsigned space_before,
98 unsigned space_after, be_abi_context_t context);
101 * Record the that ABI transmits call argument pos in the given register.
103 * @param call the abi call object
104 * @param pos the parameter position
105 * @param reg the register used
107 void be_abi_call_param_reg(be_abi_call_t *call, int pos,
108 const arch_register_t *reg,
109 be_abi_context_t context);
112 * Record the that ABI transmits return value pos in the given register.
114 * @param call the abi call object
115 * @param pos the return value position
116 * @param reg the register used
118 void be_abi_call_res_reg(be_abi_call_t *call, int pos,
119 const arch_register_t *reg,
120 be_abi_context_t context);
123 * Get the flags of a ABI call object.
124 * Note that the flags must not be the same as set by be_abi_call_set_flags(). Analysis may have
125 * altered several flags, so getting them from the call object is always a good idea.
126 * @param call The call object.
129 be_abi_call_flags_t be_abi_call_get_flags(const be_abi_call_t *call);
132 * Get the method type of an ABI call object.
133 * @param call The call object.
134 * @return The method type for that call object.
136 ir_type *be_abi_call_get_method_type(const be_abi_call_t *call);
138 void be_abi_introduce(ir_graph *irg);