1 # x86-class cpu description file
2 # this file is read by genmdesc to pruduce a table with all the relevant information
3 # about the cpu instructions that may be used by the regsiter allocator, the scheduler
4 # and other parts of the arch-dependent part of mini.
6 # An opcode name is followed by a colon and optional specifiers.
7 # A specifier has a name, a colon and a value. Specifiers are separated by white space.
8 # Here is a description of the specifiers valid for this file and their possible values.
10 # dest:register describes the destination register of an instruction
11 # src1:register describes the first source register of an instruction
12 # src2:register describes the second source register of an instruction
15 # b base register (used in address references)
16 # f floating point register
19 # l long reg (forced eax:edx)
21 # c register which can be used as a byte register (RAX..RDX)
23 # len:number describe the maximun length in bytes of the instruction
24 # number is a positive integer. If the length is not specified
25 # it defaults to zero. But lengths are only checked if the given opcode
26 # is encountered during compilation. Some opcodes, like CONV_U4 are
27 # transformed into other opcodes in the brg files, so they do not show up
28 # during code generation.
30 # cost:number describe how many cycles are needed to complete the instruction (unused)
32 # clob:spec describe if the instruction clobbers registers or has special needs
34 # c clobbers caller-save registers
35 # 1 clobbers the first source register
38 # x both the source operands are clobbered (xchg)
41 # flags:spec describe if the instruction uses or sets the flags (unused)
45 # m uses and modifies the flags
47 # res:spec describe what units are used in the processor (unused)
49 # delay: describe delay slots (unused)
51 # the required specifiers are: len, clob (if registers are clobbered), the registers
52 # specifiers if the registers are actually used, flags (when scheduling is implemented).
54 # See the code in mini-x86.c for more details on how the specifiers are used.
70 add: dest:i src1:i src2:i len:3 clob:1
71 sub: dest:i src1:i src2:i len:3 clob:1
72 mul: dest:i src1:i src2:i len:4 clob:1
73 div: dest:a src1:a src2:i len:16 clob:d
74 div.un: dest:a src1:a src2:i len:16 clob:d
75 rem: dest:d src1:a src2:i len:16 clob:a
76 rem.un: dest:d src1:a src2:i len:16 clob:a
77 and: dest:i src1:i src2:i len:3 clob:1
78 or: dest:i src1:i src2:i len:3 clob:1
79 xor: dest:i src1:i src2:i len:3 clob:1
80 shl: dest:i src1:i src2:s clob:1 len:3
81 shr: dest:i src1:i src2:s clob:1 len:3
82 shr.un: dest:i src1:i src2:s clob:1 len:3
83 neg: dest:i src1:i len:3 clob:1
84 not: dest:i src1:i len:3 clob:1
85 conv.i1: dest:i src1:i len:4
86 conv.i2: dest:i src1:i len:4
87 conv.i4: dest:i src1:i len:3
88 conv.i8: dest:i src1:i len:3
89 conv.r4: dest:f src1:i len:9
90 conv.r8: dest:f src1:i len:9
91 conv.u4: dest:i src1:i len:3
92 conv.u8: dest:i src1:i len:3
93 conv.r.un: dest:f src1:i len:8
96 rethrow: src1:i len:18
99 endfilter: src1:a len:9
101 conv.ovf.i4.un: dest:i src1:i len:16
103 conv.ovf.u4: dest:i src1:i len:15
104 ckfinite: dest:f src1:f len:43
105 conv.u2: dest:i src1:i len:4
106 conv.u1: dest:i src1:i len:4
107 conv.i: dest:i src1:i len:4
108 mul.ovf: dest:i src1:i src2:i clob:1 len:10
109 # this opcode is handled specially in the code generator
110 mul.ovf.un: dest:i src1:i src2:i len:18
111 conv.u: dest:i src1:i len:4
117 localloc: dest:i src1:i len:84
118 compare: src1:i src2:i len:3
119 lcompare: src1:i src2:i len:3
120 icompare: src1:i src2:i len:3
121 compare_imm: src1:i len:13
122 icompare_imm: src1:i len:8
123 fcompare: src1:f src2:f clob:a len:13
124 oparglist: src1:b len:11
127 setret: dest:a src1:i len:3
128 setlret: dest:i src1:i src2:i len:5
129 checkthis: src1:b len:5
130 call: dest:a clob:c len:64
131 voidcall: clob:c len:64
132 voidcall_reg: src1:i clob:c len:64
133 voidcall_membase: src1:b clob:c len:64
134 fcall: dest:f len:64 clob:c
135 fcall_reg: dest:f src1:i len:64 clob:c
136 fcall_membase: dest:f src1:b len:64 clob:c
137 lcall: dest:a len:64 clob:c
138 lcall_reg: dest:a src1:i len:64 clob:c
139 lcall_membase: dest:a src1:b len:64 clob:c
141 vcall_reg: src1:i len:64 clob:c
142 vcall_membase: src1:b len:64 clob:c
143 call_reg: dest:a src1:i len:64 clob:c
144 call_membase: dest:a src1:b len:64 clob:c
145 iconst: dest:i len:10
146 i8const: dest:i len:18
147 r4const: dest:f len:14
148 r8const: dest:f len:9
149 store_membase_imm: dest:b len:15
150 store_membase_reg: dest:b src1:i len:9
151 storei8_membase_reg: dest:b src1:i len:9
152 storei1_membase_imm: dest:b len:11
153 storei1_membase_reg: dest:b src1:c len:9
154 storei2_membase_imm: dest:b len:13
155 storei2_membase_reg: dest:b src1:i len:9
156 storei4_membase_imm: dest:b len:13
157 storei4_membase_reg: dest:b src1:i len:9
158 storei8_membase_imm: dest:b len:18
159 storer4_membase_reg: dest:b src1:f len:15
160 storer8_membase_reg: dest:b src1:f len:10
161 load_membase: dest:i src1:b len:15
162 loadi1_membase: dest:c src1:b len:9
163 loadu1_membase: dest:c src1:b len:9
164 loadi2_membase: dest:i src1:b len:9
165 loadu2_membase: dest:i src1:b len:9
166 loadi4_membase: dest:i src1:b len:9
167 loadu4_membase: dest:i src1:b len:9
168 loadi8_membase: dest:i src1:b len:18
169 loadr4_membase: dest:f src1:b len:16
170 loadr8_membase: dest:f src1:b len:16
171 loadr8_spill_membase: src1:b len:9
172 loadu4_mem: dest:i len:10
173 amd64_loadi8_memindex: dest:i src1:i src2:i len:10
174 move: dest:i src1:i len:3
175 add_imm: dest:i src1:i len:8 clob:1
176 sub_imm: dest:i src1:i len:8 clob:1
177 mul_imm: dest:i src1:i len:11
178 # there is no actual support for division or reminder by immediate
179 # we simulate them, though (but we need to change the burg rules
180 # to allocate a symbolic reg for src2)
181 div_imm: dest:a src1:i src2:i len:16 clob:d
182 div_un_imm: dest:a src1:i src2:i len:16 clob:d
183 rem_imm: dest:d src1:i src2:i len:16 clob:a
184 rem_un_imm: dest:d src1:i src2:i len:16 clob:a
185 and_imm: dest:i src1:i len:8 clob:1
186 or_imm: dest:i src1:i len:8 clob:1
187 xor_imm: dest:i src1:i len:8 clob:1
188 shl_imm: dest:i src1:i len:8 clob:1
189 shr_imm: dest:i src1:i len:8 clob:1
190 shr_un_imm: dest:i src1:i len:8 clob:1
192 cond_exc_ne_un: len:8
194 cond_exc_lt_un: len:8
196 cond_exc_gt_un: len:8
198 cond_exc_ge_un: len:8
200 cond_exc_le_un: len:8
208 long_add: dest:i src1:i src2:i len:3 clob:1
209 long_mul: dest:i src1:i src2:i clob:1 len:4
210 long_mul_imm: dest:i src1:i clob:1 len:12
211 long_div: dest:a src1:a src2:i len:16 clob:d
212 long_div_un: dest:a src1:a src2:i len:16 clob:d
213 long_rem: dest:d src1:a src2:i len:16 clob:a
214 long_rem_un: dest:d src1:a src2:i len:16 clob:a
215 long_and: dest:i src1:i src2:i len:3 clob:1
216 long_or: dest:i src1:i src2:i len:3 clob:1
217 long_xor: dest:i src1:i src2:i len:3 clob:1
218 long_shl: dest:i src1:i src2:s clob:1 len:31
219 long_shr: dest:i src1:i src2:s clob:1 len:32
220 long_shr_un: dest:i src1:i src2:s clob:1 len:32
221 long_min: dest:i src1:i src2:i len:16 clob:1
222 long_max: dest:i src1:i src2:i len:16 clob:1
224 long_conv_to_r4: dest:f src1:i len:8
225 long_conv_to_r8: dest:f src1:i len:8
226 long_conv_to_ovf_i: dest:i src1:i src2:i len:40
227 long_mul_ovf: dest:i src1:i src2:i clob:1 len:16
228 long_mul_ovf_un: dest:i src1:i src2:i len:22
229 long_conv_to_r_un: dest:f src1:i len:64
230 long_shr_imm: dest:i src1:i clob:1 len:11
231 long_shr_un_imm: dest:i src1:i clob:1 len:11
232 long_shl_imm: dest:i src1:i clob:1 len:11
244 float_add: dest:f src1:f src2:f len:5
245 float_sub: dest:f src1:f src2:f len:5
246 float_mul: dest:f src1:f src2:f len:5
247 float_div: dest:f src1:f src2:f len:5
248 float_div_un: dest:f src1:f src2:f len:5
249 float_rem: dest:f src1:f src2:f len:19
250 float_rem_un: dest:f src1:f src2:f len:19
251 float_neg: dest:f src1:f len:23
252 float_not: dest:f src1:f len:3
253 float_conv_to_i1: dest:i src1:f len:49
254 float_conv_to_i2: dest:i src1:f len:49
255 float_conv_to_i4: dest:i src1:f len:49
256 float_conv_to_i8: dest:i src1:f len:49
257 float_conv_to_u4: dest:i src1:f len:49
258 float_conv_to_u8: dest:i src1:f len:49
259 float_conv_to_u2: dest:i src1:f len:49
260 float_conv_to_u1: dest:i src1:f len:49
261 float_conv_to_i: dest:i src1:f len:49
262 float_conv_to_ovf_i: dest:a src1:f len:40
263 float_conv_to_ovd_u: dest:a src1:f len:40
265 float_ceq: dest:i src1:f src2:f len:35
266 float_cgt: dest:i src1:f src2:f len:35
267 float_cgt_un: dest:i src1:f src2:f len:48
268 float_clt: dest:i src1:f src2:f len:35
269 float_clt_un: dest:i src1:f src2:f len:42
270 float_ceq_membase: dest:i src1:f src2:b len:35
271 float_cgt_membase: dest:i src1:f src2:b len:35
272 float_cgt_un_membase: dest:i src1:f src2:b len:48
273 float_clt_membase: dest:i src1:f src2:b len:35
274 float_clt_un_membase: dest:i src1:f src2:b len:42
275 float_conv_to_u: dest:i src1:f len:46
276 fmove: dest:f src1:f len:8
278 aot_const: dest:i len:10
279 x86_test_null: src1:i len:5
280 x86_compare_membase_reg: src1:b src2:i len:9
281 x86_compare_membase_imm: src1:b len:13
282 x86_compare_reg_membase: src1:i src2:b len:8
283 x86_inc_reg: dest:i src1:i clob:1 len:3
284 x86_inc_membase: src1:b len:8
285 x86_dec_reg: dest:i src1:i clob:1 len:3
286 x86_dec_membase: src1:b len:8
287 x86_add_membase_imm: src1:b len:13
288 x86_sub_membase_imm: src1:b len:13
289 x86_push: src1:i len:3
291 x86_push_membase: src1:b len:8
292 x86_push_obj: src1:b len:40
293 x86_lea: dest:i src1:i src2:i len:8
294 x86_lea_membase: dest:i src1:i len:11
295 x86_xchg: src1:i src2:i clob:x len:2
296 x86_fpop: src1:f len:3
297 x86_fp_load_i8: dest:f src1:b len:8
298 x86_fp_load_i4: dest:f src1:b len:8
299 x86_seteq_membase: src1:b len:9
300 x86_add_membase: dest:i src1:i src2:b clob:1 len:13
301 x86_sub_membase: dest:i src1:i src2:b clob:1 len:13
302 x86_mul_membase: dest:i src1:i src2:b clob:1 len:14
303 tls_get: dest:i len:16
304 amd64_test_null: src1:i len:5
305 amd64_icompare_membase_reg: src1:b src2:i len:8
306 amd64_icompare_membase_imm: src1:b len:13
307 amd64_icompare_reg_membase: src1:i src2:b len:8
308 amd64_set_xmmreg_r4: dest:f src1:f len:14 clob:m
309 amd64_set_xmmreg_r8: dest:f src1:f len:14 clob:m
310 amd64_save_sp_to_lmf: len:16
311 atomic_add_i4: src1:b src2:i dest:i len:32
312 atomic_add_new_i4: src1:b src2:i dest:i len:32
313 atomic_exchange_i4: src1:b src2:i dest:i len:32
314 atomic_add_i8: src1:b src2:i dest:i len:32
315 atomic_add_new_i8: src1:b src2:i dest:i len:32
316 atomic_exchange_i8: src1:b src2:i dest:i len:32
317 memory_barrier: len:16
318 adc: dest:i src1:i src2:i len:3 clob:1
319 addcc: dest:i src1:i src2:i len:3 clob:1
320 subcc: dest:i src1:i src2:i len:3 clob:1
321 adc_imm: dest:i src1:i len:8 clob:1
322 sbb: dest:i src1:i src2:i len:3 clob:1
323 sbb_imm: dest:i src1:i len:8 clob:1
325 sin: dest:f src1:f len:32
326 cos: dest:f src1:f len:32
327 abs: dest:f src1:f len:32
328 tan: dest:f src1:f len:59
329 atan: dest:f src1:f len:9
330 sqrt: dest:f src1:f len:32
331 bigmul: len:3 dest:i src1:a src2:i
332 bigmul_un: len:3 dest:i src1:a src2:i
333 sext_i1: dest:i src1:i len:4
334 sext_i2: dest:i src1:i len:4
335 sext_i4: dest:i src1:i len:8
338 int_add: dest:i src1:i src2:i clob:1 len:4
339 int_sub: dest:i src1:i src2:i clob:1 len:4
340 int_mul: dest:i src1:i src2:i clob:1 len:4
341 int_mul_ovf: dest:i src1:i src2:i clob:1 len:32
342 int_mul_ovf_un: dest:i src1:i src2:i clob:1 len:32
343 int_div: dest:a src1:a src2:i clob:d len:32
344 int_div_un: dest:a src1:a src2:i clob:d len:32
345 int_rem: dest:d src1:a src2:i clob:a len:32
346 int_rem_un: dest:d src1:a src2:i clob:a len:32
347 int_and: dest:i src1:i src2:i clob:1 len:4
348 int_or: dest:i src1:i src2:i clob:1 len:4
349 int_xor: dest:i src1:i src2:i clob:1 len:4
350 int_shl: dest:i src1:i src2:s clob:1 len:4
351 int_shr: dest:i src1:i src2:s clob:1 len:4
352 int_shr_un: dest:i src1:i src2:s clob:1 len:4
353 int_adc: dest:i src1:i src2:i clob:1 len:4
354 int_adc_imm: dest:i src1:i clob:1 len:8
355 int_sbb: dest:i src1:i src2:i clob:1 len:4
356 int_sbb_imm: dest:i src1:i clob:1 len:8
357 int_addcc: dest:i src1:i src2:i clob:1 len:16
358 int_subcc: dest:i src1:i src2:i clob:1 len:16
359 int_add_imm: dest:i src1:i clob:1 len:8
360 int_sub_imm: dest:i src1:i clob:1 len:8
361 int_mul_imm: dest:i src1:i clob:1 len:32
362 int_div_imm: dest:a src1:i clob:d len:32
363 int_div_un_imm: dest:a src1:i clob:d len:32
364 int_rem_imm: dest:d src1:i clob:a len:32
365 int_rem_un_imm: dest:d src1:i clob:a len:32
366 int_and_imm: dest:i src1:i clob:1 len:8
367 int_or_imm: dest:i src1:i clob:1 len:8
368 int_xor_imm: dest:i src1:i clob:1 len:8
369 int_shl_imm: dest:i src1:i clob:1 len:8
370 int_shr_imm: dest:i src1:i clob:1 len:8
371 int_shr_un_imm: dest:i src1:i clob:1 len:8
372 int_min: dest:i src1:i src2:i len:16 clob:1
373 int_max: dest:i src1:i src2:i len:16 clob:1
375 int_neg: dest:i src1:i clob:1 len:4
376 int_not: dest:i src1:i clob:1 len:4
377 int_ceq: dest:c len:8
378 int_cgt: dest:c len:8
379 int_cgt_un: dest:c len:8
380 int_clt: dest:c len:8
381 int_clt_un: dest:c len:8