4 # inssel-x86.brg: burg file for special x86 instructions
7 # Dietmar Maurer (dietmar@ximian.com)
8 # Paolo Molaro (lupus@ximian.com)
10 # (C) 2002 Ximian, Inc.
13 stmt: OP_START_HANDLER {
14 MonoInst *spvar = mono_find_spvar_for_region (s, s->cbb->region);
15 MONO_EMIT_NEW_STORE_MEMBASE (s, OP_STORE_MEMBASE_REG, spvar->inst_basereg, spvar->inst_offset, X86_ESP);
18 stmt: CEE_ENDFINALLY {
19 MonoInst *spvar = mono_find_spvar_for_region (s, s->cbb->region);
20 MONO_EMIT_NEW_LOAD_MEMBASE (s, X86_ESP, spvar->inst_basereg, spvar->inst_offset);
21 tree->opcode = CEE_RET;
22 mono_bblock_add_inst (s->cbb, tree);
25 stmt: OP_ENDFILTER (reg) {
26 MonoInst *spvar = mono_find_spvar_for_region (s, s->cbb->region);
27 MONO_EMIT_NEW_UNALU (s, OP_MOVE, X86_EAX, state->left->reg1);
28 MONO_EMIT_NEW_LOAD_MEMBASE (s, X86_ESP, spvar->inst_basereg, spvar->inst_offset);
29 tree->opcode = CEE_RET;
30 mono_bblock_add_inst (s->cbb, tree);
33 stmt: CEE_STIND_I8 (OP_REGVAR, lreg) {
34 /* this should only happen for methods returning a long */
35 MONO_EMIT_NEW_UNALU (s, OP_MOVE, X86_EAX, state->right->reg1);
36 MONO_EMIT_NEW_UNALU (s, OP_MOVE, X86_EDX, state->right->reg2);
39 lreg: OP_LNEG (lreg) "3" {
40 int tmpr = mono_regstate_next_int (s->rs);
41 MONO_EMIT_NEW_UNALU (s, CEE_NEG, state->reg1, state->left->reg1);
42 MONO_EMIT_BIALU_IMM (s, tree, OP_ADC_IMM, tmpr, state->left->reg2, 0);
43 MONO_EMIT_NEW_UNALU (s, CEE_NEG, state->reg2, tmpr);
46 freg: OP_LCONV_TO_R8 (lreg) {
47 MONO_EMIT_NEW_UNALU (s, OP_X86_PUSH, -1, state->left->reg2);
48 MONO_EMIT_NEW_UNALU (s, OP_X86_PUSH, -1, state->left->reg1);
49 tree->opcode = OP_X86_FP_LOAD_I8;
50 tree->inst_basereg = X86_ESP;
51 tree->inst_offset = 0;
52 mono_bblock_add_inst (s->cbb, tree);
53 MONO_EMIT_NEW_BIALU_IMM (s, OP_ADD_IMM, X86_ESP, X86_ESP, 8);
56 freg: OP_LCONV_TO_R4 (lreg) {
57 MONO_EMIT_NEW_UNALU (s, OP_X86_PUSH, -1, state->left->reg2);
58 MONO_EMIT_NEW_UNALU (s, OP_X86_PUSH, -1, state->left->reg1);
59 tree->opcode = OP_X86_FP_LOAD_I8;
60 tree->inst_basereg = X86_ESP;
61 tree->inst_offset = 0;
62 mono_bblock_add_inst (s->cbb, tree);
63 /* change precision */
64 MONO_EMIT_NEW_STORE_MEMBASE (s, OP_STORER4_MEMBASE_REG, X86_ESP, 0, state->reg1);
65 MONO_EMIT_NEW_LOAD_MEMBASE_OP (s, OP_LOADR4_MEMBASE, state->reg1, X86_ESP, 0);
66 MONO_EMIT_NEW_BIALU_IMM (s, OP_ADD_IMM, X86_ESP, X86_ESP, 8);
69 freg: CEE_CONV_R_UN (reg) {
70 MONO_EMIT_NEW_BIALU_IMM (s, OP_X86_PUSH_IMM, -1, -1, 0);
71 MONO_EMIT_NEW_UNALU (s, OP_X86_PUSH, -1, state->left->reg1);
72 tree->opcode = OP_X86_FP_LOAD_I8;
73 tree->inst_basereg = X86_ESP;
74 tree->inst_offset = 0;
75 mono_bblock_add_inst (s->cbb, tree);
76 MONO_EMIT_NEW_BIALU_IMM (s, OP_ADD_IMM, X86_ESP, X86_ESP, 8);
79 cflags: OP_COMPARE (CEE_LDIND_I4 (base), reg) {
80 tree->opcode = OP_X86_COMPARE_MEMBASE_REG;
81 tree->inst_basereg = state->left->left->tree->inst_basereg;
82 tree->inst_offset = state->left->left->tree->inst_offset;
83 tree->sreg2 = state->right->reg1;
84 mono_bblock_add_inst (s->cbb, tree);
87 cflags: OP_COMPARE (CEE_LDIND_I4 (base), OP_ICONST) {
88 tree->opcode = OP_X86_COMPARE_MEMBASE_IMM;
89 tree->inst_basereg = state->left->left->tree->inst_basereg;
90 tree->inst_offset = state->left->left->tree->inst_offset;
91 tree->inst_imm = state->right->tree->inst_c0;
92 mono_bblock_add_inst (s->cbb, tree);
95 cflags: OP_COMPARE (reg, CEE_LDIND_I4 (base)) {
96 tree->opcode = OP_X86_COMPARE_REG_MEMBASE;
97 tree->sreg2 = state->right->left->tree->inst_basereg;
98 tree->inst_offset = state->right->left->tree->inst_offset;
99 tree->sreg1 = state->left->reg1;
100 mono_bblock_add_inst (s->cbb, tree);
103 stmt: CEE_STIND_I1 (base, OP_CEQ (cflags)) {
104 tree->opcode = OP_X86_SETEQ_MEMBASE;
105 tree->inst_offset = state->left->tree->inst_offset;
106 tree->inst_basereg = state->left->tree->inst_basereg;
107 mono_bblock_add_inst (s->cbb, tree);
110 reg: OP_LOCALLOC (OP_ICONST) {
111 if (tree->flags & MONO_INST_INIT) {
112 /* microcoded in mini-x86.c */
113 tree->sreg1 = mono_regstate_next_int (s->rs);
114 MONO_EMIT_NEW_ICONST (s, tree->sreg1, state->left->tree->inst_c0);
115 mono_bblock_add_inst (s->cbb, tree);
117 MONO_EMIT_NEW_BIALU_IMM (s, OP_SUB_IMM, X86_ESP, X86_ESP, state->left->tree->inst_c0);
118 MONO_EMIT_UNALU (s, tree, OP_MOVE, state->reg1, X86_ESP);
122 reg: OP_LOCALLOC (reg) {
123 tree->sreg1 = state->left->tree->dreg;
124 mono_bblock_add_inst (s->cbb, tree);
127 stmt: OP_SETRET (reg) {
128 tree->opcode = OP_MOVE;
129 tree->sreg1 = state->left->reg1;
130 tree->dreg = X86_EAX;
131 mono_bblock_add_inst (s->cbb, tree);
134 stmt: OP_SETRET (lreg) {
135 MONO_EMIT_NEW_UNALU (s, OP_MOVE, X86_EDX, state->left->reg2);
136 tree->opcode = OP_MOVE;
137 tree->sreg1 = state->left->reg1;
138 tree->dreg = X86_EAX;
139 mono_bblock_add_inst (s->cbb, tree);
142 stmt: OP_SETRET (CEE_LDIND_REF (OP_REGVAR)) {
143 tree->opcode = OP_MOVE;
144 tree->sreg1 = state->left->left->tree->dreg;
145 tree->dreg = X86_EAX;
146 mono_bblock_add_inst (s->cbb, tree);
149 stmt: OP_SETRET (freg) {
153 stmt: OP_SETRET (OP_ICONST) {
154 tree->opcode = OP_ICONST;
155 tree->inst_c0 = state->left->tree->inst_c0;
156 tree->dreg = X86_EAX;
157 mono_bblock_add_inst (s->cbb, tree);
160 stmt: OP_OUTARG (reg) {
161 tree->opcode = OP_X86_PUSH;
162 tree->sreg1 = state->left->reg1;
163 mono_bblock_add_inst (s->cbb, tree);
166 # we need to reduce this code duplication with some burg syntax extension
167 stmt: OP_OUTARG (CEE_LDIND_REF (OP_REGVAR)) {
168 tree->opcode = OP_X86_PUSH;
169 tree->sreg1 = state->left->left->tree->dreg;
170 mono_bblock_add_inst (s->cbb, tree);
173 stmt: OP_OUTARG (CEE_LDIND_I4 (OP_REGVAR)) {
174 tree->opcode = OP_X86_PUSH;
175 tree->sreg1 = state->left->left->tree->dreg;
176 mono_bblock_add_inst (s->cbb, tree);
179 stmt: OP_OUTARG (CEE_LDIND_U4 (OP_REGVAR)) {
180 tree->opcode = OP_X86_PUSH;
181 tree->sreg1 = state->left->left->tree->dreg;
182 mono_bblock_add_inst (s->cbb, tree);
185 stmt: OP_OUTARG (CEE_LDIND_I (OP_REGVAR)) {
186 tree->opcode = OP_X86_PUSH;
187 tree->sreg1 = state->left->left->tree->dreg;
188 mono_bblock_add_inst (s->cbb, tree);
191 stmt: OP_OUTARG (lreg) {
192 MONO_EMIT_NEW_UNALU (s, OP_X86_PUSH, -1, state->left->reg2);
193 tree->opcode = OP_X86_PUSH;
194 tree->sreg1 = state->left->reg1;
195 mono_bblock_add_inst (s->cbb, tree);
198 stmt: OP_OUTARG (CEE_LDIND_I8 (base)) {
200 ins = mono_mempool_alloc0 (s->mempool, sizeof (MonoInst));
201 ins->opcode = OP_X86_PUSH_MEMBASE;
202 ins->inst_basereg = state->left->left->tree->inst_basereg;
203 ins->inst_offset = state->left->left->tree->inst_offset + 4;
204 mono_bblock_add_inst (s->cbb, ins);
206 tree->opcode = OP_X86_PUSH_MEMBASE;
207 tree->inst_basereg = state->left->left->tree->inst_basereg;
208 tree->inst_offset = state->left->left->tree->inst_offset;
209 mono_bblock_add_inst (s->cbb, tree);
212 stmt: OP_OUTARG (OP_ICONST) {
213 tree->opcode = OP_X86_PUSH_IMM;
214 tree->inst_imm = state->left->tree->inst_c0;
215 mono_bblock_add_inst (s->cbb, tree);
218 stmt: OP_OUTARG (CEE_LDIND_I4 (base)) {
219 tree->opcode = OP_X86_PUSH_MEMBASE;
220 tree->inst_basereg = state->left->left->tree->inst_basereg;
221 tree->inst_offset = state->left->left->tree->inst_offset;
222 mono_bblock_add_inst (s->cbb, tree);
225 stmt: OP_OUTARG (CEE_LDIND_U4 (base)) {
226 tree->opcode = OP_X86_PUSH_MEMBASE;
227 tree->inst_basereg = state->left->left->tree->inst_basereg;
228 tree->inst_offset = state->left->left->tree->inst_offset;
229 mono_bblock_add_inst (s->cbb, tree);
232 stmt: OP_OUTARG (CEE_LDIND_I (base)) {
233 tree->opcode = OP_X86_PUSH_MEMBASE;
234 tree->inst_basereg = state->left->left->tree->inst_basereg;
235 tree->inst_offset = state->left->left->tree->inst_offset;
236 mono_bblock_add_inst (s->cbb, tree);
239 stmt: OP_OUTARG (CEE_LDIND_REF (base)) {
240 tree->opcode = OP_X86_PUSH_MEMBASE;
241 tree->inst_basereg = state->left->left->tree->inst_basereg;
242 tree->inst_offset = state->left->left->tree->inst_offset;
243 mono_bblock_add_inst (s->cbb, tree);
246 stmt: OP_OUTARG (CEE_LDIND_REF (OP_REGVAR)) {
247 tree->opcode = OP_X86_PUSH;
248 tree->sreg1 = state->left->left->tree->dreg;
249 mono_bblock_add_inst (s->cbb, tree);
252 stmt: OP_OUTARG (CEE_LDOBJ (reg)) {
253 tree->opcode = OP_X86_PUSH;
254 tree->sreg1 = state->left->reg1;
255 mono_bblock_add_inst (s->cbb, tree);
258 stmt: OP_OUTARG (freg) {
259 MONO_EMIT_NEW_BIALU_IMM (s, OP_SUB_IMM, X86_ESP, X86_ESP, 8);
260 tree->opcode = OP_STORER8_MEMBASE_REG;
261 tree->sreg1 = state->left->reg1;
262 tree->inst_destbasereg = X86_ESP;
263 tree->inst_offset = 0;
264 mono_bblock_add_inst (s->cbb, tree);
267 stmt: OP_OUTARG_R4 (freg) {
268 MONO_EMIT_NEW_BIALU_IMM (s, OP_SUB_IMM, X86_ESP, X86_ESP, 4);
269 tree->opcode = OP_STORER4_MEMBASE_REG;
270 tree->sreg1 = state->left->reg1;
271 tree->inst_destbasereg = X86_ESP;
272 tree->inst_offset = 0;
273 mono_bblock_add_inst (s->cbb, tree);
276 stmt: OP_OUTARG_R8 (freg) {
277 MONO_EMIT_NEW_BIALU_IMM (s, OP_SUB_IMM, X86_ESP, X86_ESP, 8);
278 tree->opcode = OP_STORER8_MEMBASE_REG;
279 tree->sreg1 = state->left->reg1;
280 tree->inst_destbasereg = X86_ESP;
281 tree->inst_offset = 0;
282 mono_bblock_add_inst (s->cbb, tree);
285 stmt: OP_OUTARG_VT (CEE_LDOBJ (base)) {
286 MonoInst *vt = state->left->left->tree;
287 //g_print ("vt size: %d at R%d + %d\n", tree->inst_imm, vt->inst_basereg, vt->inst_offset);
292 if (tree->inst_imm <= 4) {
293 tree->opcode = OP_X86_PUSH_MEMBASE;
294 tree->inst_basereg = vt->inst_basereg;
295 tree->inst_offset = vt->inst_offset;
296 mono_bblock_add_inst (s->cbb, tree);
297 } else if (tree->inst_imm <= 20) {
298 int sz = tree->inst_imm;
301 MONO_EMIT_NEW_BIALU_IMM (s, OP_SUB_IMM, X86_ESP, X86_ESP, sz);
302 mini_emit_memcpy (s, X86_ESP, 0, vt->inst_basereg, vt->inst_offset, tree->inst_imm, 0);
304 tree->opcode = OP_X86_PUSH_OBJ;
305 tree->inst_basereg = vt->inst_basereg;
306 tree->inst_offset = vt->inst_offset;
307 mono_bblock_add_inst (s->cbb, tree);
311 stmt: OP_OUTARG_VT (OP_ICONST) {
312 tree->opcode = OP_X86_PUSH_IMM;
313 tree->inst_imm = state->left->tree->inst_c0;
314 mono_bblock_add_inst (s->cbb, tree);
317 stmt: OP_OUTARG_VT (reg) {
318 tree->opcode = OP_X86_PUSH;
319 tree->sreg1 = state->left->tree->dreg;
320 mono_bblock_add_inst (s->cbb, tree);
323 reg: OP_LDADDR (OP_REGOFFSET) "1" {
324 if (state->left->tree->inst_offset) {
325 tree->opcode = OP_X86_LEA_MEMBASE;
326 tree->sreg1 = state->left->tree->inst_basereg;
327 tree->inst_imm = state->left->tree->inst_offset;
328 tree->dreg = state->reg1;
330 tree->opcode = OP_MOVE;
331 tree->sreg1 = state->left->tree->inst_basereg;
332 tree->dreg = state->reg1;
334 mono_bblock_add_inst (s->cbb, tree);
337 reg: CEE_LDOBJ (OP_REGOFFSET) "1" {
338 if (state->left->tree->inst_offset) {
339 tree->opcode = OP_X86_LEA_MEMBASE;
340 tree->sreg1 = state->left->tree->inst_basereg;
341 tree->inst_imm = state->left->tree->inst_offset;
342 tree->dreg = state->reg1;
344 tree->opcode = OP_MOVE;
345 tree->sreg1 = state->left->tree->inst_basereg;
346 tree->dreg = state->reg1;
348 mono_bblock_add_inst (s->cbb, tree);
351 reg: CEE_LDELEMA (reg, reg) "15" {
352 int length_reg = mono_regstate_next_int (s->rs);
353 guint32 size = mono_class_array_element_size (tree->klass);
355 MONO_EMIT_NEW_LOAD_MEMBASE_OP (s, OP_LOADI4_MEMBASE, length_reg,
356 state->left->reg1, G_STRUCT_OFFSET (MonoArray, max_length));
357 MONO_EMIT_NEW_BIALU (s, OP_COMPARE, -1, length_reg, state->right->reg1);
358 MONO_EMIT_NEW_COND_EXC (s, LE_UN, "IndexOutOfRangeException");
360 if (size == 1 || size == 2 || size == 4 || size == 8) {
361 static const int fast_log2 [] = { 1, 0, 1, -1, 2, -1, -1, -1, 3 };
362 tree->opcode = OP_X86_LEA;
363 tree->dreg = state->reg1;
364 tree->sreg1 = state->left->reg1;
365 tree->sreg2 = state->right->reg1;
366 tree->inst_imm = G_STRUCT_OFFSET (MonoArray, vector);
367 tree->unused = fast_log2 [size];
368 mono_bblock_add_inst (s->cbb, tree);
370 int mult_reg = mono_regstate_next_int (s->rs);
371 int add_reg = mono_regstate_next_int (s->rs);
372 MONO_EMIT_NEW_BIALU_IMM (s, OP_MUL_IMM, mult_reg, state->right->reg1, size);
373 MONO_EMIT_NEW_BIALU (s, CEE_ADD, add_reg, mult_reg, state->left->reg1);
374 MONO_EMIT_NEW_BIALU_IMM (s, OP_ADD_IMM, state->reg1, add_reg, G_STRUCT_OFFSET (MonoArray, vector));
378 stmt: CEE_STIND_R8 (OP_REGVAR, freg) {
379 /* nothing to do: the value is already on the FP stack */
382 stmt: CEE_STIND_I4 (base, CEE_ADD (CEE_LDIND_I4 (base), OP_ICONST)) {
383 int con = state->right->right->tree->inst_c0;
386 tree->opcode = OP_X86_INC_MEMBASE;
388 tree->opcode = OP_X86_ADD_MEMBASE_IMM;
389 tree->inst_imm = con;
392 tree->inst_basereg = state->left->tree->inst_basereg;
393 tree->inst_offset = state->left->tree->inst_offset;
394 mono_bblock_add_inst (s->cbb, tree);
396 MBTREE_TYPE *t1 = state->right->left->left->tree;
397 MBTREE_TYPE *t2 = state->left->tree;
398 MBCOND (t1->inst_basereg == t2->inst_basereg &&
399 t1->inst_offset == t2->inst_offset);
403 stmt: CEE_STIND_I4 (base, CEE_SUB (CEE_LDIND_I4 (base), OP_ICONST)) {
404 int con = state->right->right->tree->inst_c0;
407 tree->opcode = OP_X86_DEC_MEMBASE;
409 tree->opcode = OP_X86_SUB_MEMBASE_IMM;
410 tree->inst_imm = con;
413 tree->inst_basereg = state->left->tree->inst_basereg;
414 tree->inst_offset = state->left->tree->inst_offset;
415 mono_bblock_add_inst (s->cbb, tree);
417 MBTREE_TYPE *t1 = state->right->left->left->tree;
418 MBTREE_TYPE *t2 = state->left->tree;
419 MBCOND (t1->inst_basereg == t2->inst_basereg &&
420 t1->inst_offset == t2->inst_offset);
425 # this rules is incorrect, it needs to do an indirect inc (inc_membase)
426 #stmt: CEE_STIND_I4 (reg, CEE_ADD (reg, OP_ICONST)) {
427 # tree->opcode = OP_X86_INC_REG;
428 # tree->dreg = state->left->reg1;
429 # mono_bblock_add_inst (s->cbb, tree);
431 # MBState *s1 = state->left;
432 # MBState *s2 = state->right->left;
433 # int con = state->right->right->tree->inst_c0;
434 # MBCOND (con == 1 && s1->reg1 == s2->reg1);
438 stmt: CEE_STIND_I4 (OP_REGVAR, CEE_SUB (CEE_LDIND_I4 (OP_REGVAR), OP_ICONST)) {
439 int con = state->right->right->tree->inst_c0;
440 int dreg = state->left->tree->dreg;
441 int sreg = state->right->left->left->tree->dreg;
445 MONO_EMIT_NEW_UNALU (s, OP_MOVE, dreg, sreg);
446 tree->opcode = OP_X86_DEC_REG;
447 tree->dreg = tree->sreg1 = dreg;
448 } else if (con == -1) {
450 MONO_EMIT_NEW_UNALU (s, OP_MOVE, dreg, sreg);
451 tree->opcode = OP_X86_INC_REG;
452 tree->dreg = tree->sreg1 = dreg;
454 tree->opcode = OP_SUB_IMM;
455 tree->inst_imm = con;
459 mono_bblock_add_inst (s->cbb, tree);
462 stmt: CEE_STIND_I4 (OP_REGVAR, CEE_ADD (CEE_LDIND_I4 (OP_REGVAR), OP_ICONST)) {
463 int con = state->right->right->tree->inst_c0;
464 int dreg = state->left->tree->dreg;
465 int sreg = state->right->left->left->tree->dreg;
469 MONO_EMIT_NEW_UNALU (s, OP_MOVE, dreg, sreg);
470 tree->opcode = OP_X86_INC_REG;
471 tree->dreg = tree->sreg1 = dreg;
472 } else if (con == -1) {
474 MONO_EMIT_NEW_UNALU (s, OP_MOVE, dreg, sreg);
475 tree->opcode = OP_X86_DEC_REG;
476 tree->dreg = tree->sreg1 = dreg;
478 tree->opcode = OP_ADD_IMM;
479 tree->inst_imm = con;
483 mono_bblock_add_inst (s->cbb, tree);
486 reg: CEE_LDIND_I2 (OP_REGVAR) {
487 MONO_EMIT_UNALU (s, tree, OP_SEXT_I2, state->reg1, state->left->tree->dreg);
490 # on x86, fp compare overwrites EAX, so we must
491 # either improve the local register allocator or
492 # emit coarse opcodes which saves EAX for us.
494 reg: OP_CEQ (OP_COMPARE (freg, freg)) {
495 MONO_EMIT_BIALU (s, tree, OP_FCEQ, state->reg1, state->left->left->reg1,
496 state->left->right->reg1);
499 reg: OP_CLT (OP_COMPARE (freg, freg)) {
500 MONO_EMIT_BIALU (s, tree, OP_FCLT, state->reg1, state->left->left->reg1,
501 state->left->right->reg1);
504 reg: OP_CLT_UN (OP_COMPARE (freg, freg)) {
505 MONO_EMIT_BIALU (s, tree, OP_FCLT_UN, state->reg1, state->left->left->reg1,
506 state->left->right->reg1);
509 reg: OP_CGT (OP_COMPARE (freg, freg)) {
510 MONO_EMIT_BIALU (s, tree, OP_FCGT, state->reg1, state->left->left->reg1,
511 state->left->right->reg1);
514 reg: OP_CGT_UN (OP_COMPARE (freg, freg)) {
515 MONO_EMIT_BIALU (s, tree, OP_FCGT_UN, state->reg1, state->left->left->reg1,
516 state->left->right->reg1);
519 # fpcflags overwrites EAX, but this does not matter for statements
520 # because we are the last operation in the tree.
522 stmt: CEE_BNE_UN (fpcflags) {
523 tree->opcode = OP_FBNE_UN;
524 mono_bblock_add_inst (s->cbb, tree);
527 stmt: CEE_BEQ (fpcflags) {
528 tree->opcode = OP_FBEQ;
529 mono_bblock_add_inst (s->cbb, tree);
532 stmt: CEE_BLT (fpcflags) {
533 tree->opcode = OP_FBLT;
534 mono_bblock_add_inst (s->cbb, tree);
537 stmt: CEE_BLT_UN (fpcflags) {
538 tree->opcode = OP_FBLT_UN;
539 mono_bblock_add_inst (s->cbb, tree);
542 stmt: CEE_BGT (fpcflags) {
543 tree->opcode = OP_FBGT;
544 mono_bblock_add_inst (s->cbb, tree);
547 stmt: CEE_BGT_UN (fpcflags) {
548 tree->opcode = OP_FBGT_UN;
549 mono_bblock_add_inst (s->cbb, tree);
552 stmt: CEE_BGE (fpcflags) {
553 tree->opcode = OP_FBGE;
554 mono_bblock_add_inst (s->cbb, tree);
557 stmt: CEE_BGE_UN (fpcflags) {
558 tree->opcode = OP_FBGE_UN;
559 mono_bblock_add_inst (s->cbb, tree);
562 stmt: CEE_BLE (fpcflags) {
563 tree->opcode = OP_FBLE;
564 mono_bblock_add_inst (s->cbb, tree);
567 stmt: CEE_BLE_UN (fpcflags) {
568 tree->opcode = OP_FBLE_UN;
569 mono_bblock_add_inst (s->cbb, tree);
572 stmt: CEE_POP (freg) "0" {
573 /* we need to pop the value from the x86 FP stack */
574 MONO_EMIT_UNALU (s, tree, OP_X86_FPOP, -1, state->left->reg1);