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 Register mapping for firm nodes. Stolen from bearch_firm :)
23 * @author Oliver Richter, Tobias Gneist
29 #include "arm_map_regs.h"
30 #include "arm_new_nodes.h"
32 #include "gen_arm_regalloc_if.h"
35 static const arch_register_t *gpreg_param_reg_std[] = {
36 &arm_registers[REG_R0],
37 &arm_registers[REG_R1],
38 &arm_registers[REG_R2],
39 &arm_registers[REG_R3],
42 const arch_register_t *arm_get_RegParam_reg(int n)
44 assert(n < 4 && n >=0 && "register param > 3 angefordert");
45 return gpreg_param_reg_std[n];
48 /* Mapping to store registers in firm nodes */
50 typedef struct arm_irn_reg_assoc {
52 const arch_register_t *reg;
55 int arm_cmp_irn_reg_assoc(const void *a, const void *b, size_t size)
57 const arm_irn_reg_assoc *x = (const arm_irn_reg_assoc*)a;
58 const arm_irn_reg_assoc *y = (const arm_irn_reg_assoc*)b;
61 return x->irn != y->irn;
64 static arm_irn_reg_assoc *get_irn_reg_assoc(const ir_node *irn, set *reg_set)
66 arm_irn_reg_assoc templ;
73 return set_insert(arm_irn_reg_assoc, reg_set, &templ, sizeof(templ), hash);
76 void arm_set_firm_reg(ir_node *irn, const arch_register_t *reg, set *reg_set)
78 arm_irn_reg_assoc *assoc = get_irn_reg_assoc(irn, reg_set);
82 const arch_register_t *arm_get_firm_reg(const ir_node *irn, set *reg_set)
84 const arm_irn_reg_assoc *assoc = get_irn_reg_assoc(irn, reg_set);