/[pcre]/code/trunk/sljit/sljitNativeSPARC_32.c
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Contents of /code/trunk/sljit/sljitNativeSPARC_32.c

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Revision 1754 - (show annotations)
Wed Jul 17 07:17:16 2019 UTC (7 months, 1 week ago) by zherczeg
File MIME type: text/plain
File size: 11199 byte(s)
JIT compiler update.
1 /*
2 * Stack-less Just-In-Time compiler
3 *
4 * Copyright Zoltan Herczeg (hzmester@freemail.hu). All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without modification, are
7 * permitted provided that the following conditions are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright notice, this list of
10 * conditions and the following disclaimer.
11 *
12 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
13 * of conditions and the following disclaimer in the documentation and/or other materials
14 * provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) AND CONTRIBUTORS ``AS IS'' AND ANY
17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
19 * SHALL THE COPYRIGHT HOLDER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
21 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
22 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
24 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27 static sljit_s32 load_immediate(struct sljit_compiler *compiler, sljit_s32 dst, sljit_sw imm)
28 {
29 if (imm <= SIMM_MAX && imm >= SIMM_MIN)
30 return push_inst(compiler, OR | D(dst) | S1(0) | IMM(imm), DR(dst));
31
32 FAIL_IF(push_inst(compiler, SETHI | D(dst) | ((imm >> 10) & 0x3fffff), DR(dst)));
33 return (imm & 0x3ff) ? push_inst(compiler, OR | D(dst) | S1(dst) | IMM_ARG | (imm & 0x3ff), DR(dst)) : SLJIT_SUCCESS;
34 }
35
36 #define ARG2(flags, src2) ((flags & SRC2_IMM) ? IMM(src2) : S2(src2))
37
38 static SLJIT_INLINE sljit_s32 emit_single_op(struct sljit_compiler *compiler, sljit_s32 op, sljit_s32 flags,
39 sljit_s32 dst, sljit_s32 src1, sljit_sw src2)
40 {
41 SLJIT_COMPILE_ASSERT(ICC_IS_SET == SET_FLAGS, icc_is_set_and_set_flags_must_be_the_same);
42
43 switch (op) {
44 case SLJIT_MOV:
45 case SLJIT_MOV_U32:
46 case SLJIT_MOV_S32:
47 case SLJIT_MOV_P:
48 SLJIT_ASSERT(src1 == TMP_REG1 && !(flags & SRC2_IMM));
49 if (dst != src2)
50 return push_inst(compiler, OR | D(dst) | S1(0) | S2(src2), DR(dst));
51 return SLJIT_SUCCESS;
52
53 case SLJIT_MOV_U8:
54 case SLJIT_MOV_S8:
55 SLJIT_ASSERT(src1 == TMP_REG1 && !(flags & SRC2_IMM));
56 if ((flags & (REG_DEST | REG2_SOURCE)) == (REG_DEST | REG2_SOURCE)) {
57 if (op == SLJIT_MOV_U8)
58 return push_inst(compiler, AND | D(dst) | S1(src2) | IMM(0xff), DR(dst));
59 FAIL_IF(push_inst(compiler, SLL | D(dst) | S1(src2) | IMM(24), DR(dst)));
60 return push_inst(compiler, SRA | D(dst) | S1(dst) | IMM(24), DR(dst));
61 }
62 else if (dst != src2)
63 SLJIT_UNREACHABLE();
64 return SLJIT_SUCCESS;
65
66 case SLJIT_MOV_U16:
67 case SLJIT_MOV_S16:
68 SLJIT_ASSERT(src1 == TMP_REG1 && !(flags & SRC2_IMM));
69 if ((flags & (REG_DEST | REG2_SOURCE)) == (REG_DEST | REG2_SOURCE)) {
70 FAIL_IF(push_inst(compiler, SLL | D(dst) | S1(src2) | IMM(16), DR(dst)));
71 return push_inst(compiler, (op == SLJIT_MOV_S16 ? SRA : SRL) | D(dst) | S1(dst) | IMM(16), DR(dst));
72 }
73 else if (dst != src2)
74 SLJIT_UNREACHABLE();
75 return SLJIT_SUCCESS;
76
77 case SLJIT_NOT:
78 SLJIT_ASSERT(src1 == TMP_REG1 && !(flags & SRC2_IMM));
79 return push_inst(compiler, XNOR | (flags & SET_FLAGS) | D(dst) | S1(0) | S2(src2), DR(dst) | (flags & SET_FLAGS));
80
81 case SLJIT_CLZ:
82 SLJIT_ASSERT(src1 == TMP_REG1 && !(flags & SRC2_IMM));
83 FAIL_IF(push_inst(compiler, SUB | SET_FLAGS | D(0) | S1(src2) | S2(0), SET_FLAGS));
84 FAIL_IF(push_inst(compiler, OR | D(TMP_REG1) | S1(0) | S2(src2), DR(TMP_REG1)));
85 FAIL_IF(push_inst(compiler, BICC | DA(0x1) | (7 & DISP_MASK), UNMOVABLE_INS));
86 FAIL_IF(push_inst(compiler, OR | D(dst) | S1(0) | IMM(32), UNMOVABLE_INS));
87 FAIL_IF(push_inst(compiler, OR | D(dst) | S1(0) | IMM(-1), DR(dst)));
88
89 /* Loop. */
90 FAIL_IF(push_inst(compiler, SUB | SET_FLAGS | D(0) | S1(TMP_REG1) | S2(0), SET_FLAGS));
91 FAIL_IF(push_inst(compiler, SLL | D(TMP_REG1) | S1(TMP_REG1) | IMM(1), DR(TMP_REG1)));
92 FAIL_IF(push_inst(compiler, BICC | DA(0xe) | (-2 & DISP_MASK), UNMOVABLE_INS));
93 return push_inst(compiler, ADD | D(dst) | S1(dst) | IMM(1), UNMOVABLE_INS);
94
95 case SLJIT_ADD:
96 return push_inst(compiler, ADD | (flags & SET_FLAGS) | D(dst) | S1(src1) | ARG2(flags, src2), DR(dst) | (flags & SET_FLAGS));
97
98 case SLJIT_ADDC:
99 return push_inst(compiler, ADDC | (flags & SET_FLAGS) | D(dst) | S1(src1) | ARG2(flags, src2), DR(dst) | (flags & SET_FLAGS));
100
101 case SLJIT_SUB:
102 return push_inst(compiler, SUB | (flags & SET_FLAGS) | D(dst) | S1(src1) | ARG2(flags, src2), DR(dst) | (flags & SET_FLAGS));
103
104 case SLJIT_SUBC:
105 return push_inst(compiler, SUBC | (flags & SET_FLAGS) | D(dst) | S1(src1) | ARG2(flags, src2), DR(dst) | (flags & SET_FLAGS));
106
107 case SLJIT_MUL:
108 FAIL_IF(push_inst(compiler, SMUL | D(dst) | S1(src1) | ARG2(flags, src2), DR(dst)));
109 if (!(flags & SET_FLAGS))
110 return SLJIT_SUCCESS;
111 FAIL_IF(push_inst(compiler, SRA | D(TMP_REG1) | S1(dst) | IMM(31), DR(TMP_REG1)));
112 FAIL_IF(push_inst(compiler, RDY | D(TMP_LINK), DR(TMP_LINK)));
113 return push_inst(compiler, SUB | SET_FLAGS | D(0) | S1(TMP_REG1) | S2(TMP_LINK), MOVABLE_INS | SET_FLAGS);
114
115 case SLJIT_AND:
116 return push_inst(compiler, AND | (flags & SET_FLAGS) | D(dst) | S1(src1) | ARG2(flags, src2), DR(dst) | (flags & SET_FLAGS));
117
118 case SLJIT_OR:
119 return push_inst(compiler, OR | (flags & SET_FLAGS) | D(dst) | S1(src1) | ARG2(flags, src2), DR(dst) | (flags & SET_FLAGS));
120
121 case SLJIT_XOR:
122 return push_inst(compiler, XOR | (flags & SET_FLAGS) | D(dst) | S1(src1) | ARG2(flags, src2), DR(dst) | (flags & SET_FLAGS));
123
124 case SLJIT_SHL:
125 FAIL_IF(push_inst(compiler, SLL | D(dst) | S1(src1) | ARG2(flags, src2), DR(dst)));
126 return !(flags & SET_FLAGS) ? SLJIT_SUCCESS : push_inst(compiler, SUB | SET_FLAGS | D(0) | S1(dst) | S2(0), SET_FLAGS);
127
128 case SLJIT_LSHR:
129 FAIL_IF(push_inst(compiler, SRL | D(dst) | S1(src1) | ARG2(flags, src2), DR(dst)));
130 return !(flags & SET_FLAGS) ? SLJIT_SUCCESS : push_inst(compiler, SUB | SET_FLAGS | D(0) | S1(dst) | S2(0), SET_FLAGS);
131
132 case SLJIT_ASHR:
133 FAIL_IF(push_inst(compiler, SRA | D(dst) | S1(src1) | ARG2(flags, src2), DR(dst)));
134 return !(flags & SET_FLAGS) ? SLJIT_SUCCESS : push_inst(compiler, SUB | SET_FLAGS | D(0) | S1(dst) | S2(0), SET_FLAGS);
135 }
136
137 SLJIT_UNREACHABLE();
138 return SLJIT_SUCCESS;
139 }
140
141 static sljit_s32 call_with_args(struct sljit_compiler *compiler, sljit_s32 arg_types, sljit_s32 *src)
142 {
143 sljit_s32 reg_index = 8;
144 sljit_s32 word_reg_index = 8;
145 sljit_s32 float_arg_index = 1;
146 sljit_s32 double_arg_count = 0;
147 sljit_s32 float_offset = (16 + 6) * sizeof(sljit_sw);
148 sljit_s32 types = 0;
149 sljit_s32 reg = 0;
150 sljit_s32 move_to_tmp2 = 0;
151
152 if (src)
153 reg = reg_map[*src & REG_MASK];
154
155 arg_types >>= SLJIT_DEF_SHIFT;
156
157 while (arg_types) {
158 types = (types << SLJIT_DEF_SHIFT) | (arg_types & SLJIT_DEF_MASK);
159
160 switch (arg_types & SLJIT_DEF_MASK) {
161 case SLJIT_ARG_TYPE_F32:
162 float_arg_index++;
163 if (reg_index == reg)
164 move_to_tmp2 = 1;
165 reg_index++;
166 break;
167 case SLJIT_ARG_TYPE_F64:
168 float_arg_index++;
169 double_arg_count++;
170 if (reg_index == reg || reg_index + 1 == reg)
171 move_to_tmp2 = 1;
172 reg_index += 2;
173 break;
174 default:
175 if (reg_index != word_reg_index && reg_index < 14 && reg_index == reg)
176 move_to_tmp2 = 1;
177 reg_index++;
178 word_reg_index++;
179 break;
180 }
181
182 if (move_to_tmp2) {
183 move_to_tmp2 = 0;
184 if (reg < 14)
185 FAIL_IF(push_inst(compiler, OR | D(TMP_REG1) | S1(0) | S2A(reg), DR(TMP_REG1)));
186 *src = TMP_REG1;
187 }
188
189 arg_types >>= SLJIT_DEF_SHIFT;
190 }
191
192 arg_types = types;
193
194 while (arg_types) {
195 switch (arg_types & SLJIT_DEF_MASK) {
196 case SLJIT_ARG_TYPE_F32:
197 float_arg_index--;
198 FAIL_IF(push_inst(compiler, STF | FD(float_arg_index) | S1(SLJIT_SP) | IMM(float_offset), MOVABLE_INS));
199 float_offset -= sizeof(sljit_f64);
200 break;
201 case SLJIT_ARG_TYPE_F64:
202 float_arg_index--;
203 if (float_arg_index == 4 && double_arg_count == 4) {
204 FAIL_IF(push_inst(compiler, STF | FD(float_arg_index) | S1(SLJIT_SP) | IMM((16 + 7) * sizeof(sljit_sw)), MOVABLE_INS));
205 FAIL_IF(push_inst(compiler, STF | FD(float_arg_index) | (1 << 25) | S1(SLJIT_SP) | IMM((16 + 8) * sizeof(sljit_sw)), MOVABLE_INS));
206 }
207 else
208 FAIL_IF(push_inst(compiler, STDF | FD(float_arg_index) | S1(SLJIT_SP) | IMM(float_offset), MOVABLE_INS));
209 float_offset -= sizeof(sljit_f64);
210 break;
211 default:
212 break;
213 }
214
215 arg_types >>= SLJIT_DEF_SHIFT;
216 }
217
218 float_offset = (16 + 6) * sizeof(sljit_sw);
219
220 while (types) {
221 switch (types & SLJIT_DEF_MASK) {
222 case SLJIT_ARG_TYPE_F32:
223 reg_index--;
224 if (reg_index < 14)
225 FAIL_IF(push_inst(compiler, LDUW | DA(reg_index) | S1(SLJIT_SP) | IMM(float_offset), reg_index));
226 float_offset -= sizeof(sljit_f64);
227 break;
228 case SLJIT_ARG_TYPE_F64:
229 reg_index -= 2;
230 if (reg_index < 14) {
231 if ((reg_index & 0x1) != 0) {
232 FAIL_IF(push_inst(compiler, LDUW | DA(reg_index) | S1(SLJIT_SP) | IMM(float_offset), reg_index));
233 if (reg_index < 13)
234 FAIL_IF(push_inst(compiler, LDUW | DA(reg_index + 1) | S1(SLJIT_SP) | IMM(float_offset + sizeof(sljit_sw)), reg_index + 1));
235 }
236 else
237 FAIL_IF(push_inst(compiler, LDD | DA(reg_index) | S1(SLJIT_SP) | IMM(float_offset), reg_index));
238 }
239 float_offset -= sizeof(sljit_f64);
240 break;
241 default:
242 reg_index--;
243 word_reg_index--;
244
245 if (reg_index != word_reg_index) {
246 if (reg_index < 14)
247 FAIL_IF(push_inst(compiler, OR | DA(reg_index) | S1(0) | S2A(word_reg_index), reg_index));
248 else
249 FAIL_IF(push_inst(compiler, STW | DA(word_reg_index) | S1(SLJIT_SP) | IMM(92), word_reg_index));
250 }
251 break;
252 }
253
254 types >>= SLJIT_DEF_SHIFT;
255 }
256
257 return SLJIT_SUCCESS;
258 }
259
260 static SLJIT_INLINE sljit_s32 emit_const(struct sljit_compiler *compiler, sljit_s32 dst, sljit_sw init_value)
261 {
262 FAIL_IF(push_inst(compiler, SETHI | D(dst) | ((init_value >> 10) & 0x3fffff), DR(dst)));
263 return push_inst(compiler, OR | D(dst) | S1(dst) | IMM_ARG | (init_value & 0x3ff), DR(dst));
264 }
265
266 SLJIT_API_FUNC_ATTRIBUTE void sljit_set_jump_addr(sljit_uw addr, sljit_uw new_target, sljit_sw executable_offset)
267 {
268 sljit_ins *inst = (sljit_ins *)addr;
269
270 SLJIT_ASSERT(((inst[0] & 0xc1c00000) == 0x01000000) && ((inst[1] & 0xc1f82000) == 0x80102000));
271 inst[0] = (inst[0] & 0xffc00000) | ((new_target >> 10) & 0x3fffff);
272 inst[1] = (inst[1] & 0xfffffc00) | (new_target & 0x3ff);
273 inst = (sljit_ins *)SLJIT_ADD_EXEC_OFFSET(inst, executable_offset);
274 SLJIT_CACHE_FLUSH(inst, inst + 2);
275 }
276
277 SLJIT_API_FUNC_ATTRIBUTE void sljit_set_const(sljit_uw addr, sljit_sw new_constant, sljit_sw executable_offset)
278 {
279 sljit_ins *inst = (sljit_ins *)addr;
280
281 SLJIT_ASSERT(((inst[0] & 0xc1c00000) == 0x01000000) && ((inst[1] & 0xc1f82000) == 0x80102000));
282 inst[0] = (inst[0] & 0xffc00000) | ((new_constant >> 10) & 0x3fffff);
283 inst[1] = (inst[1] & 0xfffffc00) | (new_constant & 0x3ff);
284 inst = (sljit_ins *)SLJIT_ADD_EXEC_OFFSET(inst, executable_offset);
285 SLJIT_CACHE_FLUSH(inst, inst + 2);
286 }

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