1 #define MONO_EMIT_NEW_X86_COMPARE_MEMBASE_REG(cfg,basereg,offset,operand) do { \
3 MONO_INST_NEW ((cfg), inst, OP_X86_COMPARE_MEMBASE_REG); \
4 inst->inst_basereg = basereg; \
5 inst->inst_offset = offset; \
6 inst->sreg2 = operand; \
7 mono_bblock_add_inst (cfg->cbb, inst); \
10 #define MONO_EMIT_NEW_X86_COMPARE_MEMBASE_IMM(cfg,basereg,offset,operand) do { \
12 MONO_INST_NEW ((cfg), inst, OP_X86_COMPARE_MEMBASE_IMM); \
13 inst->inst_basereg = basereg; \
14 inst->inst_offset = offset; \
15 inst->inst_imm = operand; \
16 mono_bblock_add_inst (cfg->cbb, inst); \
19 /* override the arch independant versions with fast x86 versions */
21 #undef MONO_EMIT_BOUNDS_CHECK
22 #undef MONO_EMIT_BOUNDS_CHECK_IMM
24 #define MONO_EMIT_BOUNDS_CHECK(cfg, array_reg, array_type, array_length_field, index_reg) do { \
25 if (! (state->tree->flags & MONO_INST_NORANGECHECK)) { \
26 MONO_EMIT_NEW_X86_COMPARE_MEMBASE_REG (cfg, array_reg, G_STRUCT_OFFSET (array_type, array_length_field), index_reg); \
27 MONO_EMIT_NEW_COND_EXC (cfg, LE_UN, "IndexOutOfRangeException"); \
31 #define MONO_EMIT_BOUNDS_CHECK_IMM(cfg, array_reg, array_type, array_length_field, index_imm) do { \
32 if (! (state->tree->flags & MONO_INST_NORANGECHECK)) { \
33 MONO_EMIT_NEW_X86_COMPARE_MEMBASE_IMM (cfg, array_reg, G_STRUCT_OFFSET (array_type, array_length_field), index_imm); \
34 MONO_EMIT_NEW_COND_EXC (cfg, LE_UN, "IndexOutOfRangeException"); \
41 # inssel-x86.brg: burg file for special x86 instructions
44 # Dietmar Maurer (dietmar@ximian.com)
45 # Paolo Molaro (lupus@ximian.com)
47 # (C) 2002 Ximian, Inc.
50 stmt: OP_START_HANDLER,
52 mono_bblock_add_inst (s->cbb, tree);
55 stmt: OP_ENDFILTER (reg) {
56 tree->sreg1 = state->left->reg1;
57 mono_bblock_add_inst (s->cbb, tree);
60 stmt: CEE_STIND_I8 (OP_REGVAR, lreg) {
61 /* this should only happen for methods returning a long */
62 MONO_EMIT_NEW_UNALU (s, OP_MOVE, X86_EAX, state->right->reg1);
63 MONO_EMIT_NEW_UNALU (s, OP_MOVE, X86_EDX, state->right->reg2);
66 reg: CEE_LDIND_I1 (OP_REGVAR) {
67 MONO_EMIT_UNALU (s, tree, OP_SEXT_I1, state->reg1, state->left->tree->dreg);}
69 reg: CEE_LDIND_I2 (OP_REGVAR) {
70 MONO_EMIT_UNALU (s, tree, OP_SEXT_I2, state->reg1, state->left->tree->dreg);}
72 lreg: OP_LNEG (lreg) "3" {
73 int tmpr = mono_regstate_next_int (s->rs);
74 MONO_EMIT_NEW_UNALU (s, CEE_NEG, state->reg1, state->left->reg1);
75 MONO_EMIT_BIALU_IMM (s, tree, OP_ADC_IMM, tmpr, state->left->reg2, 0);
76 MONO_EMIT_NEW_UNALU (s, CEE_NEG, state->reg2, tmpr);
79 freg: OP_LCONV_TO_R8 (lreg) {
80 MONO_EMIT_NEW_UNALU (s, OP_X86_PUSH, -1, state->left->reg2);
81 MONO_EMIT_NEW_UNALU (s, OP_X86_PUSH, -1, state->left->reg1);
82 tree->opcode = OP_X86_FP_LOAD_I8;
83 tree->inst_basereg = X86_ESP;
84 tree->inst_offset = 0;
85 tree->dreg = state->reg1;
86 mono_bblock_add_inst (s->cbb, tree);
87 MONO_EMIT_NEW_BIALU_IMM (s, OP_ADD_IMM, X86_ESP, X86_ESP, 8);
90 freg: OP_LCONV_TO_R4 (lreg) {
91 MONO_EMIT_NEW_UNALU (s, OP_X86_PUSH, -1, state->left->reg2);
92 MONO_EMIT_NEW_UNALU (s, OP_X86_PUSH, -1, state->left->reg1);
93 tree->opcode = OP_X86_FP_LOAD_I8;
94 tree->inst_basereg = X86_ESP;
95 tree->inst_offset = 0;
96 tree->dreg = state->reg1;
97 mono_bblock_add_inst (s->cbb, tree);
98 /* change precision */
99 MONO_EMIT_NEW_STORE_MEMBASE (s, OP_STORER4_MEMBASE_REG, X86_ESP, 0, state->reg1);
100 MONO_EMIT_NEW_LOAD_MEMBASE_OP (s, OP_LOADR4_MEMBASE, state->reg1, X86_ESP, 0);
101 MONO_EMIT_NEW_BIALU_IMM (s, OP_ADD_IMM, X86_ESP, X86_ESP, 8);
104 freg: CEE_CONV_R_UN (reg) {
105 MONO_EMIT_NEW_BIALU_IMM (s, OP_X86_PUSH_IMM, -1, -1, 0);
106 MONO_EMIT_NEW_UNALU (s, OP_X86_PUSH, -1, state->left->reg1);
107 tree->opcode = OP_X86_FP_LOAD_I8;
108 tree->inst_basereg = X86_ESP;
109 tree->inst_offset = 0;
110 tree->dreg = state->reg1;
111 mono_bblock_add_inst (s->cbb, tree);
112 MONO_EMIT_NEW_BIALU_IMM (s, OP_ADD_IMM, X86_ESP, X86_ESP, 8);
115 cflags: OP_COMPARE (CEE_LDIND_REF (base), reg),
116 cflags: OP_COMPARE (CEE_LDIND_I (base), reg),
117 cflags: OP_COMPARE (CEE_LDIND_I4 (base), reg),
118 cflags: OP_COMPARE (CEE_LDIND_U4 (base), reg) {
119 tree->opcode = OP_X86_COMPARE_MEMBASE_REG;
120 tree->inst_basereg = state->left->left->tree->inst_basereg;
121 tree->inst_offset = state->left->left->tree->inst_offset;
122 tree->sreg2 = state->right->reg1;
123 mono_bblock_add_inst (s->cbb, tree);
126 cflags: OP_COMPARE (CEE_LDIND_REF (base), CEE_LDIND_REF (OP_REGVAR)),
127 cflags: OP_COMPARE (CEE_LDIND_I (base), CEE_LDIND_REF (OP_REGVAR)),
128 cflags: OP_COMPARE (CEE_LDIND_I4 (base), CEE_LDIND_REF (OP_REGVAR)),
129 cflags: OP_COMPARE (CEE_LDIND_U4 (base), CEE_LDIND_REF (OP_REGVAR)) {
130 tree->opcode = OP_X86_COMPARE_MEMBASE_REG;
131 tree->inst_basereg = state->left->left->tree->inst_basereg;
132 tree->inst_offset = state->left->left->tree->inst_offset;
133 tree->sreg2 = state->right->left->tree->dreg;
134 mono_bblock_add_inst (s->cbb, tree);
137 cflags: OP_COMPARE (CEE_LDIND_REF (base), OP_ICONST),
138 cflags: OP_COMPARE (CEE_LDIND_I (base), OP_ICONST),
139 cflags: OP_COMPARE (CEE_LDIND_I4 (base), OP_ICONST),
140 cflags: OP_COMPARE (CEE_LDIND_U4 (base), OP_ICONST) {
141 tree->opcode = OP_X86_COMPARE_MEMBASE_IMM;
142 tree->inst_basereg = state->left->left->tree->inst_basereg;
143 tree->inst_offset = state->left->left->tree->inst_offset;
144 tree->inst_imm = state->right->tree->inst_c0;
145 mono_bblock_add_inst (s->cbb, tree);
149 cflags: OP_COMPARE (CEE_LDIND_REF (OP_ICONST), OP_ICONST),
150 cflags: OP_COMPARE (CEE_LDIND_I (OP_ICONST), OP_ICONST),
151 cflags: OP_COMPARE (CEE_LDIND_I4 (OP_ICONST), OP_ICONST),
152 cflags: OP_COMPARE (CEE_LDIND_U4 (OP_ICONST), OP_ICONST) {
153 tree->opcode = OP_X86_COMPARE_MEM_IMM;
154 tree->inst_offset = state->left->left->tree->inst_c0;
155 tree->inst_imm = state->right->tree->inst_c0;
156 mono_bblock_add_inst (s->cbb, tree);
159 cflags: OP_COMPARE (reg, CEE_LDIND_REF (base)),
160 cflags: OP_COMPARE (reg, CEE_LDIND_I (base)),
161 cflags: OP_COMPARE (reg, CEE_LDIND_I4 (base)),
162 cflags: OP_COMPARE (reg, CEE_LDIND_U4 (base)) {
163 tree->opcode = OP_X86_COMPARE_REG_MEMBASE;
164 tree->sreg2 = state->right->left->tree->inst_basereg;
165 tree->inst_offset = state->right->left->tree->inst_offset;
166 tree->sreg1 = state->left->reg1;
167 mono_bblock_add_inst (s->cbb, tree);
170 cflags: OP_COMPARE (CEE_LDIND_REF (OP_REGVAR), CEE_LDIND_REF (base)),
171 cflags: OP_COMPARE (CEE_LDIND_I (OP_REGVAR), CEE_LDIND_I (base)),
172 cflags: OP_COMPARE (CEE_LDIND_I4 (OP_REGVAR), CEE_LDIND_I4 (base)),
173 cflags: OP_COMPARE (CEE_LDIND_U4 (OP_REGVAR), CEE_LDIND_U4 (base)) {
174 tree->opcode = OP_X86_COMPARE_REG_MEMBASE;
175 tree->sreg2 = state->right->left->tree->inst_basereg;
176 tree->inst_offset = state->right->left->tree->inst_offset;
177 tree->sreg1 = state->left->left->tree->dreg;
178 mono_bblock_add_inst (s->cbb, tree);
181 cflags : OP_CEQ (OP_COMPARE (OP_CEQ (cflags), OP_ICONST)) {
182 tree->opcode = OP_CNE;
183 tree->dreg = state->reg1;
184 mono_bblock_add_inst (s->cbb, tree);
186 MBCOND (!state->left->right->tree->inst_c0);
190 stmt: CEE_STIND_I1 (base, OP_CEQ (OP_COMPARE (OP_CEQ (cflags), OP_ICONST))) {
191 tree->opcode = OP_X86_SETNE_MEMBASE;
192 tree->inst_offset = state->left->tree->inst_offset;
193 tree->inst_basereg = state->left->tree->inst_basereg;
194 mono_bblock_add_inst (s->cbb, tree);
196 MBCOND (!state->right->left->right->tree->inst_c0);
200 stmt: CEE_STIND_I1 (base, OP_CEQ (cflags)) {
201 tree->opcode = OP_X86_SETEQ_MEMBASE;
202 tree->inst_offset = state->left->tree->inst_offset;
203 tree->inst_basereg = state->left->tree->inst_basereg;
204 mono_bblock_add_inst (s->cbb, tree);
207 reg: OP_LOCALLOC (OP_ICONST) {
208 if (tree->flags & MONO_INST_INIT) {
209 /* microcoded in mini-x86.c */
210 tree->sreg1 = mono_regstate_next_int (s->rs);
211 tree->dreg = state->reg1;
212 MONO_EMIT_NEW_ICONST (s, tree->sreg1, state->left->tree->inst_c0);
213 mono_bblock_add_inst (s->cbb, tree);
215 guint32 size = state->left->tree->inst_c0;
216 size = (size + (MONO_ARCH_LOCALLOC_ALIGNMENT - 1)) & ~ (MONO_ARCH_LOCALLOC_ALIGNMENT - 1);
217 MONO_EMIT_NEW_BIALU_IMM (s, OP_SUB_IMM, X86_ESP, X86_ESP, size);
218 MONO_EMIT_UNALU (s, tree, OP_MOVE, state->reg1, X86_ESP);
222 reg: OP_LOCALLOC (reg) {
223 tree->sreg1 = state->left->tree->dreg;
224 tree->dreg = state->reg1;
225 mono_bblock_add_inst (s->cbb, tree);
228 stmt: OP_SETRET (reg) {
229 MONO_EMIT_UNALU (s, tree, OP_MOVE, X86_EAX, state->left->reg1);
232 stmt: OP_SETRET (lreg) {
233 MONO_EMIT_NEW_UNALU (s, OP_MOVE, X86_EDX, state->left->reg2);
234 MONO_EMIT_UNALU (s, tree, OP_MOVE, X86_EAX, state->left->reg1);
237 stmt: OP_SETRET (CEE_LDIND_REF (OP_REGVAR)),
238 stmt: OP_SETRET (CEE_LDIND_I (OP_REGVAR)),
239 stmt: OP_SETRET (CEE_LDIND_I4 (OP_REGVAR)),
240 stmt: OP_SETRET (CEE_LDIND_U4 (OP_REGVAR)) {
241 MONO_EMIT_UNALU (s, tree, OP_MOVE, X86_EAX, state->left->left->tree->dreg);
244 stmt: OP_SETRET (freg) {
248 stmt: OP_SETRET (OP_ICONST) {
249 tree->opcode = OP_ICONST;
250 tree->inst_c0 = state->left->tree->inst_c0;
251 tree->dreg = X86_EAX;
252 mono_bblock_add_inst (s->cbb, tree);
255 stmt: OP_SETRET (i8con) {
256 MONO_EMIT_NEW_ICONST (s, X86_EAX, state->left->tree->inst_ls_word);
257 MONO_EMIT_NEW_ICONST (s, X86_EDX, state->left->tree->inst_ms_word);
260 stmt: OP_OUTARG (reg) {
261 tree->opcode = OP_X86_PUSH;
262 tree->sreg1 = state->left->reg1;
263 mono_bblock_add_inst (s->cbb, tree);
266 stmt: OP_OUTARG (CEE_LDIND_REF (OP_REGVAR)),
267 stmt: OP_OUTARG (CEE_LDIND_I4 (OP_REGVAR)),
268 stmt: OP_OUTARG (CEE_LDIND_U4 (OP_REGVAR)),
269 stmt: OP_OUTARG (CEE_LDIND_I (OP_REGVAR)) {
270 tree->opcode = OP_X86_PUSH;
271 tree->sreg1 = state->left->left->tree->dreg;
272 mono_bblock_add_inst (s->cbb, tree);
275 stmt: OP_OUTARG (OP_GOT_ENTRY (CEE_LDIND_I (OP_REGVAR), OP_PATCH_INFO)) {
277 ins = mono_mempool_alloc0 (s->mempool, sizeof (MonoInst));
278 ins->opcode = OP_X86_PUSH_GOT_ENTRY;
279 ins->inst_right = state->left->right->tree;
280 ins->inst_basereg = state->left->left->left->tree->dreg;
281 mono_bblock_add_inst (s->cbb, ins);
284 stmt: OP_OUTARG (lreg) {
285 MONO_EMIT_NEW_UNALU (s, OP_X86_PUSH, -1, state->left->reg2);
286 tree->opcode = OP_X86_PUSH;
287 tree->sreg1 = state->left->reg1;
288 mono_bblock_add_inst (s->cbb, tree);
291 stmt: OP_OUTARG (CEE_LDIND_I8 (base)) {
293 ins = mono_mempool_alloc0 (s->mempool, sizeof (MonoInst));
294 ins->opcode = OP_X86_PUSH_MEMBASE;
295 ins->inst_basereg = state->left->left->tree->inst_basereg;
296 ins->inst_offset = state->left->left->tree->inst_offset + 4;
297 mono_bblock_add_inst (s->cbb, ins);
299 tree->opcode = OP_X86_PUSH_MEMBASE;
300 tree->inst_basereg = state->left->left->tree->inst_basereg;
301 tree->inst_offset = state->left->left->tree->inst_offset;
302 mono_bblock_add_inst (s->cbb, tree);
305 stmt: OP_OUTARG (OP_ICONST) {
306 tree->opcode = OP_X86_PUSH_IMM;
307 tree->inst_imm = state->left->tree->inst_c0;
308 mono_bblock_add_inst (s->cbb, tree);
311 stmt: OP_OUTARG (i8con) {
313 ins = mono_mempool_alloc0 (s->mempool, sizeof (MonoInst));
314 ins->opcode = OP_X86_PUSH_IMM;
315 ins->inst_imm = state->left->tree->inst_ms_word;
316 mono_bblock_add_inst (s->cbb, ins);
318 tree->opcode = OP_X86_PUSH_IMM;
319 tree->inst_imm = state->left->tree->inst_ls_word;
320 mono_bblock_add_inst (s->cbb, tree);
323 stmt: OP_OUTARG (CEE_LDIND_I4 (base)),
324 stmt: OP_OUTARG (CEE_LDIND_U4 (base)),
325 stmt: OP_OUTARG (CEE_LDIND_I (base)),
326 stmt: OP_OUTARG (CEE_LDIND_REF (base)) {
327 tree->opcode = OP_X86_PUSH_MEMBASE;
328 tree->inst_basereg = state->left->left->tree->inst_basereg;
329 tree->inst_offset = state->left->left->tree->inst_offset;
330 mono_bblock_add_inst (s->cbb, tree);
333 stmt: OP_OUTARG (freg) {
334 MONO_EMIT_NEW_BIALU_IMM (s, OP_SUB_IMM, X86_ESP, X86_ESP, 8);
335 tree->opcode = OP_STORER8_MEMBASE_REG;
336 tree->sreg1 = state->left->reg1;
337 tree->inst_destbasereg = X86_ESP;
338 tree->inst_offset = 0;
339 mono_bblock_add_inst (s->cbb, tree);
342 stmt: OP_OUTARG_R4 (freg) {
343 MONO_EMIT_NEW_BIALU_IMM (s, OP_SUB_IMM, X86_ESP, X86_ESP, 4);
344 tree->opcode = OP_STORER4_MEMBASE_REG;
345 tree->sreg1 = state->left->reg1;
346 tree->inst_destbasereg = X86_ESP;
347 tree->inst_offset = 0;
348 mono_bblock_add_inst (s->cbb, tree);
351 stmt: OP_OUTARG_R8 (freg) {
352 int esp_displ = (tree->backend.arg_info >> 16) & 0xffff;
353 int esp_offset = tree->backend.arg_info & 0xffff;
355 MONO_EMIT_NEW_BIALU_IMM (s, OP_SUB_IMM, X86_ESP, X86_ESP, esp_displ);
356 tree->opcode = OP_STORER8_MEMBASE_REG;
357 tree->sreg1 = state->left->reg1;
358 tree->inst_destbasereg = X86_ESP;
359 tree->inst_offset = esp_offset;
360 mono_bblock_add_inst (s->cbb, tree);
363 stmt: OP_OUTARG_VT (CEE_LDOBJ (base)) {
364 MonoInst *vt = state->left->left->tree;
365 //g_print ("vt size: %d at R%d + %d\n", tree->inst_imm, vt->inst_basereg, vt->inst_offset);
370 if (tree->inst_imm <= 4) {
371 tree->opcode = OP_X86_PUSH_MEMBASE;
372 tree->inst_basereg = vt->inst_basereg;
373 tree->inst_offset = vt->inst_offset;
374 mono_bblock_add_inst (s->cbb, tree);
375 } else if (tree->inst_imm <= 20) {
376 int sz = tree->inst_imm;
379 MONO_EMIT_NEW_BIALU_IMM (s, OP_SUB_IMM, X86_ESP, X86_ESP, sz);
380 mini_emit_memcpy (s, X86_ESP, 0, vt->inst_basereg, vt->inst_offset, tree->inst_imm, 0);
382 tree->opcode = OP_X86_PUSH_OBJ;
383 tree->inst_basereg = vt->inst_basereg;
384 tree->inst_offset = vt->inst_offset;
385 mono_bblock_add_inst (s->cbb, tree);
389 stmt: OP_OUTARG_VT (OP_ICONST) {
390 tree->opcode = OP_X86_PUSH_IMM;
391 tree->inst_imm = state->left->tree->inst_c0;
392 mono_bblock_add_inst (s->cbb, tree);
395 stmt: OP_OUTARG_VT (reg) {
396 tree->opcode = OP_X86_PUSH;
397 tree->sreg1 = state->left->reg1;
398 mono_bblock_add_inst (s->cbb, tree);
401 stmt: OP_X86_OUTARG_ALIGN_STACK {
402 MONO_EMIT_NEW_BIALU_IMM (s, OP_SUB_IMM, X86_ESP, X86_ESP, tree->inst_c0);
405 reg: OP_LDADDR (OP_REGOFFSET),
406 reg: CEE_LDOBJ (OP_REGOFFSET) {
407 if (state->left->tree->inst_offset) {
408 tree->opcode = OP_X86_LEA_MEMBASE;
409 tree->inst_imm = state->left->tree->inst_offset;
411 tree->opcode = OP_MOVE;
413 tree->sreg1 = state->left->tree->inst_basereg;
414 tree->dreg = state->reg1;
415 mono_bblock_add_inst (s->cbb, tree);
418 reg: CEE_LDELEMA (reg, reg) "15" {
419 guint32 size = mono_class_array_element_size (tree->klass);
421 MONO_EMIT_BOUNDS_CHECK (s, state->left->reg1, MonoArray, max_length, state->right->reg1);
423 if (size == 1 || size == 2 || size == 4 || size == 8) {
424 static const int fast_log2 [] = { 1, 0, 1, -1, 2, -1, -1, -1, 3 };
425 tree->opcode = OP_X86_LEA;
426 tree->dreg = state->reg1;
427 tree->sreg1 = state->left->reg1;
428 tree->sreg2 = state->right->reg1;
429 tree->inst_imm = G_STRUCT_OFFSET (MonoArray, vector);
430 tree->backend.shift_amount = fast_log2 [size];
431 mono_bblock_add_inst (s->cbb, tree);
433 int mult_reg = mono_regstate_next_int (s->rs);
434 int add_reg = mono_regstate_next_int (s->rs);
435 MONO_EMIT_NEW_BIALU_IMM (s, OP_MUL_IMM, mult_reg, state->right->reg1, size);
436 MONO_EMIT_NEW_BIALU (s, CEE_ADD, add_reg, mult_reg, state->left->reg1);
437 MONO_EMIT_NEW_BIALU_IMM (s, OP_ADD_IMM, state->reg1, add_reg, G_STRUCT_OFFSET (MonoArray, vector));
441 stmt: CEE_STIND_R8 (OP_REGVAR, freg) {
442 /* nothing to do: the value is already on the FP stack */
445 stmt: CEE_STIND_I4 (base, CEE_AND (CEE_LDIND_U4 (base), OP_ICONST)),
446 stmt: CEE_STIND_I4 (base, CEE_OR (CEE_LDIND_U4 (base), OP_ICONST)),
447 stmt: CEE_STIND_I4 (base, CEE_XOR (CEE_LDIND_U4 (base), OP_ICONST)),
448 stmt: CEE_STIND_I4 (base, CEE_SUB (CEE_LDIND_U4 (base), OP_ICONST)),
449 stmt: CEE_STIND_I4 (base, CEE_ADD (CEE_LDIND_U4 (base), OP_ICONST)),
450 stmt: CEE_STIND_I4 (base, CEE_AND (CEE_LDIND_I4 (base), OP_ICONST)),
451 stmt: CEE_STIND_I4 (base, CEE_OR (CEE_LDIND_I4 (base), OP_ICONST)),
452 stmt: CEE_STIND_I4 (base, CEE_XOR (CEE_LDIND_I4 (base), OP_ICONST)),
453 stmt: CEE_STIND_I4 (base, CEE_SUB (CEE_LDIND_I4 (base), OP_ICONST)),
454 stmt: CEE_STIND_I4 (base, CEE_ADD (CEE_LDIND_I4 (base), OP_ICONST)) {
455 int con = state->right->right->tree->inst_c0;
456 MBTREE_TYPE *t1 = state->left->tree;
457 MBTREE_TYPE *t2 = state->right->left->left->tree;
458 int op = state->right->tree->opcode;
460 /* inst_basereg/offset can't be used for base
461 * operands in cost functions, since they are not set yet,
462 * so we catch all the cases and handle them here.
464 if (t1->inst_basereg == t2->inst_basereg && t1->inst_offset == t2->inst_offset) {
465 if (con == 1 && op == CEE_ADD) {
466 tree->opcode = OP_X86_INC_MEMBASE;
467 } else if (con == 1 && op == CEE_SUB) {
468 tree->opcode = OP_X86_DEC_MEMBASE;
470 tree->opcode = alu_reg_to_alu_membase_imm (op);
471 tree->inst_imm = con;
474 tree->inst_basereg = state->left->tree->inst_basereg;
475 tree->inst_offset = state->left->tree->inst_offset;
476 mono_bblock_add_inst (s->cbb, tree);
479 int loaded_reg = mono_regstate_next_int (s->rs);
480 int add_reg = mono_regstate_next_int (s->rs);
481 MONO_EMIT_NEW_LOAD_MEMBASE_OP (s, OP_LOADI4_MEMBASE, loaded_reg, t2->inst_basereg, t2->inst_offset);
482 MONO_EMIT_NEW_BIALU_IMM (s, alu_reg_to_alu_imm (op), add_reg, loaded_reg, con);
483 MONO_EMIT_NEW_STORE_MEMBASE (s, OP_STOREI4_MEMBASE_REG, t1->inst_basereg, t1->inst_offset, add_reg);
488 # this rules is incorrect, it needs to do an indirect inc (inc_membase)
489 #stmt: CEE_STIND_I4 (reg, CEE_ADD (reg, OP_ICONST)) {
490 # tree->opcode = OP_X86_INC_REG;
491 # tree->dreg = state->left->reg1;
492 # mono_bblock_add_inst (s->cbb, tree);
494 # MBState *s1 = state->left;
495 # MBState *s2 = state->right->left;
496 # int con = state->right->right->tree->inst_c0;
497 # MBCOND (con == 1 && s1->reg1 == s2->reg1);
501 stmt: CEE_STIND_I4 (OP_REGVAR, CEE_SUB (CEE_LDIND_I4 (OP_REGVAR), OP_ICONST)) {
502 int con = state->right->right->tree->inst_c0;
503 int dreg = state->left->tree->dreg;
504 int sreg = state->right->left->left->tree->dreg;
508 MONO_EMIT_NEW_UNALU (s, OP_MOVE, dreg, sreg);
509 tree->opcode = OP_X86_DEC_REG;
510 tree->dreg = tree->sreg1 = dreg;
511 } else if (con == -1) {
513 MONO_EMIT_NEW_UNALU (s, OP_MOVE, dreg, sreg);
514 tree->opcode = OP_X86_INC_REG;
515 tree->dreg = tree->sreg1 = dreg;
517 tree->opcode = OP_SUB_IMM;
518 tree->inst_imm = con;
522 mono_bblock_add_inst (s->cbb, tree);
525 stmt: CEE_STIND_I (OP_REGVAR, CEE_ADD (CEE_LDIND_I (OP_REGVAR), OP_ICONST)),
526 stmt: CEE_STIND_I4 (OP_REGVAR, CEE_ADD (CEE_LDIND_I4 (OP_REGVAR), OP_ICONST)) {
527 int con = state->right->right->tree->inst_c0;
528 int dreg = state->left->tree->dreg;
529 int sreg = state->right->left->left->tree->dreg;
533 MONO_EMIT_NEW_UNALU (s, OP_MOVE, dreg, sreg);
534 tree->opcode = OP_X86_INC_REG;
535 tree->dreg = tree->sreg1 = dreg;
536 } else if (con == -1) {
538 MONO_EMIT_NEW_UNALU (s, OP_MOVE, dreg, sreg);
539 tree->opcode = OP_X86_DEC_REG;
540 tree->dreg = tree->sreg1 = dreg;
542 tree->opcode = OP_ADD_IMM;
543 tree->inst_imm = con;
547 mono_bblock_add_inst (s->cbb, tree);
550 reg: CEE_LDIND_I2 (OP_REGVAR) {
551 MONO_EMIT_UNALU (s, tree, OP_SEXT_I2, state->reg1, state->left->tree->dreg);
555 stmt: CEE_STIND_I4 (OP_REGVAR, OP_ICONST),
556 stmt: CEE_STIND_I2 (OP_REGVAR, OP_ICONST),
557 stmt: CEE_STIND_I1 (OP_REGVAR, OP_ICONST),
558 stmt: CEE_STIND_REF (OP_REGVAR, OP_ICONST),
559 stmt: CEE_STIND_I (OP_REGVAR, OP_ICONST) {
560 int r = state->left->tree->dreg;
561 MONO_EMIT_BIALU (s, tree, CEE_XOR, r, r, r);
563 MBCOND (!state->right->tree->inst_c0);
568 # on x86, fp compare overwrites EAX, so we must
569 # either improve the local register allocator or
570 # emit coarse opcodes which saves EAX for us.
572 reg: OP_CEQ (OP_COMPARE (freg, freg)) {
573 MONO_EMIT_BIALU (s, tree, OP_FCEQ, state->reg1, state->left->left->reg1,
574 state->left->right->reg1);
577 reg: OP_CLT (OP_COMPARE (freg, freg)) {
578 MONO_EMIT_BIALU (s, tree, OP_FCLT, state->reg1, state->left->left->reg1,
579 state->left->right->reg1);
582 reg: OP_CLT_UN (OP_COMPARE (freg, freg)) {
583 MONO_EMIT_BIALU (s, tree, OP_FCLT_UN, state->reg1, state->left->left->reg1,
584 state->left->right->reg1);
587 reg: OP_CGT (OP_COMPARE (freg, freg)) {
588 MONO_EMIT_BIALU (s, tree, OP_FCGT, state->reg1, state->left->left->reg1,
589 state->left->right->reg1);
592 reg: OP_CGT_UN (OP_COMPARE (freg, freg)) {
593 MONO_EMIT_BIALU (s, tree, OP_FCGT_UN, state->reg1, state->left->left->reg1,
594 state->left->right->reg1);
597 # fpcflags overwrites EAX, but this does not matter for statements
598 # because we are the last operation in the tree.
600 stmt: CEE_BNE_UN (fpcflags) {
601 tree->opcode = OP_FBNE_UN;
602 mono_bblock_add_inst (s->cbb, tree);
605 stmt: CEE_BEQ (fpcflags) {
606 tree->opcode = OP_FBEQ;
607 mono_bblock_add_inst (s->cbb, tree);
610 stmt: CEE_BLT (fpcflags) {
611 tree->opcode = OP_FBLT;
612 mono_bblock_add_inst (s->cbb, tree);
615 stmt: CEE_BLT_UN (fpcflags) {
616 tree->opcode = OP_FBLT_UN;
617 mono_bblock_add_inst (s->cbb, tree);
620 stmt: CEE_BGT (fpcflags) {
621 tree->opcode = OP_FBGT;
622 mono_bblock_add_inst (s->cbb, tree);
625 stmt: CEE_BGT_UN (fpcflags) {
626 tree->opcode = OP_FBGT_UN;
627 mono_bblock_add_inst (s->cbb, tree);
630 stmt: CEE_BGE (fpcflags) {
631 tree->opcode = OP_FBGE;
632 mono_bblock_add_inst (s->cbb, tree);
635 stmt: CEE_BGE_UN (fpcflags) {
636 tree->opcode = OP_FBGE_UN;
637 mono_bblock_add_inst (s->cbb, tree);
640 stmt: CEE_BLE (fpcflags) {
641 tree->opcode = OP_FBLE;
642 mono_bblock_add_inst (s->cbb, tree);
645 stmt: CEE_BLE_UN (fpcflags) {
646 tree->opcode = OP_FBLE_UN;
647 mono_bblock_add_inst (s->cbb, tree);
650 stmt: CEE_POP (freg) "0" {
651 /* we need to pop the value from the x86 FP stack */
652 MONO_EMIT_UNALU (s, tree, OP_X86_FPOP, -1, state->left->reg1);
655 # override the rules in inssel-float.brg that work for machines with FP registers
657 reg: CEE_ADD(reg, CEE_LDIND_I4 (base)) {
658 MonoInst *base = state->right->left->tree;
660 tree->dreg = state->reg1;
661 tree->sreg1 = state->left->reg1;
662 tree->sreg2 = base->inst_basereg;
663 tree->inst_offset = base->inst_offset;
664 tree->opcode = OP_X86_ADD_REG_MEMBASE;
665 mono_bblock_add_inst (s->cbb, tree);
668 reg: CEE_SUB(reg, CEE_LDIND_I4 (base)) {
669 MonoInst *base = state->right->left->tree;
671 tree->dreg = state->reg1;
672 tree->sreg1 = state->left->reg1;
673 tree->sreg2 = base->inst_basereg;
674 tree->inst_offset = base->inst_offset;
675 tree->opcode = OP_X86_SUB_REG_MEMBASE;
676 mono_bblock_add_inst (s->cbb, tree);
679 reg: CEE_MUL(reg, CEE_LDIND_I4 (base)) {
680 MonoInst *base = state->right->left->tree;
682 tree->dreg = state->reg1;
683 tree->sreg1 = state->left->reg1;
684 tree->sreg2 = base->inst_basereg;
685 tree->inst_offset = base->inst_offset;
686 tree->opcode = OP_X86_MUL_REG_MEMBASE;
687 mono_bblock_add_inst (s->cbb, tree);
690 reg: OP_IMIN (reg, reg),
691 reg: OP_IMIN_UN (reg, reg),
692 reg: OP_IMAX (reg, reg),
693 reg: OP_IMAX_UN (reg, reg) {
694 MONO_EMIT_BIALU (s, tree, tree->opcode, state->reg1, state->left->reg1, state->right->reg1);
697 lreg: OP_LSHL (lreg, reg) "0" {
698 MONO_EMIT_BIALU (s, tree, tree->opcode, state->reg1, state->left->reg1, state->right->reg1);
701 lreg: OP_LSHL (lreg, OP_ICONST) "0" {
702 MONO_EMIT_BIALU_IMM (s, tree, OP_LSHL_IMM, state->reg1, state->left->reg1, state->right->tree->inst_c0);
705 lreg: OP_LSHR (lreg, reg) "0" {
706 MONO_EMIT_BIALU (s, tree, tree->opcode, state->reg1, state->left->reg1, state->right->reg1);
709 lreg: OP_LSHR (lreg, OP_ICONST) "0" {
710 MONO_EMIT_BIALU_IMM (s, tree, OP_LSHR_IMM, state->reg1, state->left->reg1, state->right->tree->inst_c0);
713 lreg: OP_LSHR_UN (lreg, reg) "0" {
714 MONO_EMIT_BIALU (s, tree, tree->opcode, state->reg1, state->left->reg1, state->right->reg1);
717 lreg: OP_LSHR_UN (lreg, OP_ICONST) "0" {
718 MONO_EMIT_BIALU_IMM (s, tree, OP_LSHR_UN_IMM, state->reg1, state->left->reg1, state->right->tree->inst_c0);
721 reg: OP_ATOMIC_ADD_NEW_I4 (base, reg),
722 reg: OP_ATOMIC_ADD_I4 (base, reg),
723 reg: OP_ATOMIC_EXCHANGE_I4 (base, reg),
724 reg: OP_ATOMIC_CAS_IMM_I4 (base, reg) {
725 tree->opcode = tree->opcode;
726 tree->dreg = state->reg1;
727 tree->sreg2 = state->right->reg1;
728 tree->inst_basereg = state->left->tree->inst_basereg;
729 tree->inst_offset = state->left->tree->inst_offset;
731 mono_bblock_add_inst (s->cbb, tree);
734 # Optimized call instructions
735 reg: OP_CALL_REG (CEE_LDIND_I (base)),
736 freg: OP_FCALL_REG (CEE_LDIND_I (base)) {
737 tree->opcode = call_reg_to_call_membase (tree->opcode);
738 tree->inst_basereg = state->left->left->tree->inst_basereg;
739 tree->inst_offset = state->left->left->tree->inst_offset;
740 tree->dreg = state->reg1;
741 mono_bblock_add_inst (s->cbb, tree);
744 lreg: OP_LCALL_REG (CEE_LDIND_I (base)) {
745 tree->opcode = call_reg_to_call_membase (tree->opcode);
746 tree->inst_basereg = state->left->left->tree->inst_basereg;
747 tree->inst_offset = state->left->left->tree->inst_offset;
748 tree->dreg = state->reg1;
749 mono_bblock_add_inst (s->cbb, tree);
752 stmt: OP_VOIDCALL_REG (CEE_LDIND_I (base)) {
753 tree->opcode = call_reg_to_call_membase (tree->opcode);
754 tree->inst_basereg = state->left->left->tree->inst_basereg;
755 tree->inst_offset = state->left->left->tree->inst_offset;
756 mono_bblock_add_inst (s->cbb, tree);
759 stmt: OP_VCALL_REG (CEE_LDIND_I (base), reg) {
760 mono_arch_emit_this_vret_args (s, (MonoCallInst*)tree, -1, -1, state->right->reg1);
762 tree->opcode = call_reg_to_call_membase (tree->opcode);
763 tree->inst_basereg = state->left->left->tree->inst_basereg;
764 tree->inst_offset = state->left->left->tree->inst_offset;
765 tree->dreg = state->reg1;
766 mono_bblock_add_inst (s->cbb, tree);
769 # Optimized ldind(reg) rules
770 reg: CEE_LDIND_REF (OP_REGVAR),
771 reg: CEE_LDIND_I (OP_REGVAR),
772 reg: CEE_LDIND_I4 (OP_REGVAR),
773 reg: CEE_LDIND_U4 (OP_REGVAR) "0" {
774 state->reg1 = state->left->tree->dreg;
775 tree->dreg = state->reg1;
778 reg: OP_STR_CHAR_ADDR (reg, reg) "2" {
780 * The corlib functions check for oob already.
781 * MONO_EMIT_BOUNDS_CHECK (s, state->left->reg1, MonoString, length, state->right->reg1);
783 tree->opcode = OP_X86_LEA;
784 tree->dreg = state->reg1;
785 tree->sreg1 = state->left->reg1;
786 tree->sreg2 = state->right->reg1;
787 tree->inst_imm = G_STRUCT_OFFSET (MonoString, chars);
788 tree->backend.shift_amount = 1; /* shift by two */
789 mono_bblock_add_inst (s->cbb, tree);
795 alu_reg_to_alu_imm (int op)
809 g_assert_not_reached ();
815 alu_reg_to_alu_membase_imm (int op)
819 return OP_X86_ADD_MEMBASE_IMM;
821 return OP_X86_SUB_MEMBASE_IMM;
823 return OP_X86_AND_MEMBASE_IMM;
825 return OP_X86_OR_MEMBASE_IMM;
827 return OP_X86_XOR_MEMBASE_IMM;
829 g_assert_not_reached ();
835 call_reg_to_call_membase (int opcode)
839 return OP_CALL_MEMBASE;
841 return OP_FCALL_MEMBASE;
843 return OP_VCALL_MEMBASE;
845 return OP_LCALL_MEMBASE;
846 case OP_VOIDCALL_REG:
847 return OP_VOIDCALL_MEMBASE;
849 g_assert_not_reached ();