2 * Copyright (C) 1995-2007 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
21 * Register mapping for firm nodes. Stolen from bearch_firm :)
30 #include "arm_map_regs.h"
31 #include "arm_new_nodes.h"
33 #include "gen_arm_regalloc_if.h"
36 static const arch_register_t *gpreg_param_reg_std[] = {
43 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 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 len) {
56 const struct arm_irn_reg_assoc *x = a;
57 const struct arm_irn_reg_assoc *y = b;
59 return x->irn != y->irn;
62 static struct arm_irn_reg_assoc *get_irn_reg_assoc(const ir_node *irn, set *reg_set) {
63 struct arm_irn_reg_assoc templ;
70 return set_insert(reg_set, &templ, sizeof(templ), hash);
73 void arm_set_firm_reg(ir_node *irn, const arch_register_t *reg, set *reg_set) {
74 struct arm_irn_reg_assoc *assoc = get_irn_reg_assoc(irn, reg_set);
78 const arch_register_t *arm_get_firm_reg(const ir_node *irn, set *reg_set) {
79 struct arm_irn_reg_assoc *assoc = get_irn_reg_assoc(irn, reg_set);
86 * Translates the proj number into a "real" argument position for register
87 * requirements depended on the predecessor.
89 long arm_translate_proj_pos(const ir_node *proj) {
90 ir_node *pred = get_Proj_pred(proj);
91 long nr = get_Proj_proj(proj);
93 if (is_irn_machine_op(pred)) {
94 switch (get_arm_irn_opcode(pred)) {
102 if (nr == pn_Load_res)
104 assert(0 && "unsupported Proj(Load) number");
107 case iro_arm_Storebs:
109 case iro_arm_Storehs:
115 if (nr == pn_Quot_res)
117 assert(0 && "there should be no more Projs for a fDiv");
124 // assert(0 && "unsupported Proj(X)");