1 /* src/vm/jit/sparc64/md-abi.c - functions for Sparc ABI
3 Copyright (C) 1996-2005, 2006 R. Grafl, A. Krall, C. Kruegel,
4 C. Oates, R. Obermaisser, M. Platter, M. Probst, S. Ring,
5 E. Steiner, C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich,
6 J. Wenninger, Institut f. Computersprachen - TU Wien
8 This file is part of CACAO.
10 This program is free software; you can redistribute it and/or
11 modify it under the terms of the GNU General Public License as
12 published by the Free Software Foundation; either version 2, or (at
13 your option) any later version.
15 This program is distributed in the hope that it will be useful, but
16 WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
25 $Id: md-abi.h 4357 2006-01-22 23:33:38Z twisti $
33 #include "vm/jit/sparc64/md-abi.h"
35 #include "vm/global.h"
37 #include "vm/jit/abi.h"
39 #include "vmcore/descriptor.h"
42 #include "mm/memory.h"
46 /* register descripton array **************************************************/
48 /* callee point-of-view, after SAVE has been called. */
50 /* zero itmp1/g1 itmp2/g2 itmp3/g3 temp/g4 temp/g5 sys/g6 sys/g7 */
51 REG_RES, REG_RES, REG_RES, REG_RES, REG_RES, REG_RES, REG_RES, REG_RES,
53 /* o0 o1 o2 o3 o4 pv/o5 sp/o6 ra/o7 */
54 REG_ARG, REG_ARG, REG_ARG, REG_ARG, REG_ARG, REG_RES, REG_RES, REG_RES,
56 /* l0 l1 l2 l3 l4 l5 l6 l7 */
57 REG_SAV, REG_SAV, REG_SAV, REG_SAV, REG_SAV, REG_SAV, REG_SAV, REG_SAV,
59 /* i0/v0 i1 i2 i3 i4 pv/i5 fp/i6 ra/i7 */
60 REG_RET, REG_SAV, REG_SAV, REG_SAV, REG_SAV, REG_RES, REG_RES, REG_RES,
66 const char *abi_registers_integer_name[] = {
67 "zero", "g1", "g2", "g3", "g4", "g5", "g6", "g7",
68 "o0", "o1", "o2", "o3", "o4", "o5", "sp", "o7",
69 "l0", "l1", "l2", "l3", "l4", "l5", "l6", "l7",
70 "i0", "i1", "i2", "i3", "i4", "i5", "fp", "i7"
73 s4 nregdescfloat[] = {
74 REG_RET, REG_RES, REG_RES, REG_RES, REG_TMP, REG_TMP, REG_TMP, REG_TMP,
75 REG_ARG, REG_ARG, REG_ARG, REG_ARG, REG_TMP, REG_TMP, REG_TMP, REG_TMP,
80 s4 nat_argintregs[] = {
81 REG_OUT0, REG_OUT1, REG_OUT2, REG_OUT3, REG_OUT4, REG_OUT5
85 /* md_param_alloc **************************************************************
87 Allocate Arguments to Stackslots according the Calling Conventions
90 md->paramcount: Number of arguments for this method
91 md->paramtypes[].type: Argument types
94 md->params[].inmemory: Argument spilled on stack
95 md->params[].regoff: Stack offset or rd->arg[int|flt]regs index
96 md->memuse: Stackslots needed for argument spilling
97 md->argintreguse: max number of integer arguments used
98 md->argfltreguse: max number of float arguments used
100 *******************************************************************************/
102 void md_param_alloc(methoddesc *md)
109 /* set default values */
114 /* get params field of methoddesc */
118 for (i = 0; i < md->paramcount; i++, pd++) {
119 switch (md->paramtypes[i].type) {
123 if (i < INT_ARG_CNT) {
124 pd->inmemory = false;
127 md->argintreguse = reguse;
131 pd->regoff = stacksize;
137 if (i < FLT_ARG_CNT) {
138 pd->inmemory = false;
141 md->argfltreguse = reguse;
144 pd->regoff = stacksize;
151 /* Since O0 is used for passing return values, this */
152 /* argument register usage has to be regarded, too */
153 if (IS_INT_LNG_TYPE(md->returntype.type)) {
155 md->argintreguse = 1;
158 /* fill register and stack usage */
160 md->memuse = stacksize;
163 /* md_native_param_alloc **************************************************************
167 *******************************************************************************/
169 void md_native_param_alloc(methoddesc *md)
176 /* set default values */
181 /* get params field of methoddesc */
185 for (i = 0; i < md->paramcount; i++, pd++) {
186 switch (md->paramtypes[i].type) {
190 if (i < INT_NATARG_CNT) {
191 pd->inmemory = false;
194 md->argintreguse = reguse;
205 if (i < FLT_NATARG_CNT) {
206 pd->inmemory = false;
209 md->argfltreguse = reguse;
220 /* Since O0 is used for passing return values, this */
221 /* argument register usage has to be regarded, too */
222 if (IS_INT_LNG_TYPE(md->returntype.type)) {
224 md->argintreguse = 1;
227 /* fill register and stack usage */
229 md->memuse = stacksize;
232 /* md_param_alloc_native *******************************************************
234 * Pre-allocate arguments according to the native ABI.
236 * *******************************************************************************/
238 void md_param_alloc_native(methoddesc *md)
240 /* XXX need to merge this with my hacked solution to the same problem */
244 /* reg_setup *******************************************************************
248 *******************************************************************************/
250 void md_native_reg_setup(jitdata *jd)
256 /* get required compiler data */
261 /* setup the integer register table */
264 rd->argintregs = DMNEW(s4, INT_NATARG_CNT);
265 rd->argintreguse = 0;
267 for (rd->argintreguse = 0, i = 8; rd->argintreguse < INT_NATARG_CNT; i++) {
268 rd->argintregs[rd->argintreguse++] = i;
271 assert(rd->argintreguse == INT_NATARG_CNT);
273 /* setup the float register table */
275 rd->argfltregs = DMNEW(s4, FLT_NATARG_CNT);
277 rd->argfltreguse = 0;
280 for (rd->argfltreguse = 0, i = 0; rd->argfltreguse < FLT_NATARG_CNT; i++) {
281 rd->argfltregs[rd->argfltreguse++] = i;
283 assert(rd->argfltreguse == FLT_NATARG_CNT);
287 /* md_return_alloc *************************************************************
291 *******************************************************************************/
293 void md_return_alloc(jitdata *jd, stackptr stackslot)
300 * These are local overrides for various environment variables in Emacs.
301 * Please do not remove this and leave it at the end of the file, where
302 * Emacs will automagically detect them.
303 * ---------------------------------------------------------------------
306 * indent-tabs-mode: t