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annotate src/cpu/x86/vm/macroAssembler_x86.hpp @ 8654:3bbad4ec6510
new phase: PushNodesThroughPi
author | Bernhard Urban <bernhard.urban@jku.at> |
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date | Thu, 04 Apr 2013 16:03:08 +0200 |
parents | 8391fdd36e1f |
children | e961c11b85fe |
rev | line source |
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7199 | 1 /* |
2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. | |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
20 * or visit www.oracle.com if you need additional information or have any | |
21 * questions. | |
22 * | |
23 */ | |
24 | |
25 #ifndef CPU_X86_VM_MACROASSEMBLER_X86_HPP | |
26 #define CPU_X86_VM_MACROASSEMBLER_X86_HPP | |
27 | |
28 #include "asm/assembler.hpp" | |
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29 #include "utilities/macros.hpp" |
7199 | 30 |
31 | |
32 // MacroAssembler extends Assembler by frequently used macros. | |
33 // | |
34 // Instructions for which a 'better' code sequence exists depending | |
35 // on arguments should also go in here. | |
36 | |
37 class MacroAssembler: public Assembler { | |
38 friend class LIR_Assembler; | |
39 friend class Runtime1; // as_Address() | |
40 | |
41 protected: | |
42 | |
43 Address as_Address(AddressLiteral adr); | |
44 Address as_Address(ArrayAddress adr); | |
45 | |
46 // Support for VM calls | |
47 // | |
48 // This is the base routine called by the different versions of call_VM_leaf. The interpreter | |
49 // may customize this version by overriding it for its purposes (e.g., to save/restore | |
50 // additional registers when doing a VM call). | |
51 #ifdef CC_INTERP | |
52 // c++ interpreter never wants to use interp_masm version of call_VM | |
53 #define VIRTUAL | |
54 #else | |
55 #define VIRTUAL virtual | |
56 #endif | |
57 | |
58 VIRTUAL void call_VM_leaf_base( | |
59 address entry_point, // the entry point | |
60 int number_of_arguments // the number of arguments to pop after the call | |
61 ); | |
62 | |
63 // This is the base routine called by the different versions of call_VM. The interpreter | |
64 // may customize this version by overriding it for its purposes (e.g., to save/restore | |
65 // additional registers when doing a VM call). | |
66 // | |
67 // If no java_thread register is specified (noreg) than rdi will be used instead. call_VM_base | |
68 // returns the register which contains the thread upon return. If a thread register has been | |
69 // specified, the return value will correspond to that register. If no last_java_sp is specified | |
70 // (noreg) than rsp will be used instead. | |
71 VIRTUAL void call_VM_base( // returns the register containing the thread upon return | |
72 Register oop_result, // where an oop-result ends up if any; use noreg otherwise | |
73 Register java_thread, // the thread if computed before ; use noreg otherwise | |
74 Register last_java_sp, // to set up last_Java_frame in stubs; use noreg otherwise | |
75 address entry_point, // the entry point | |
76 int number_of_arguments, // the number of arguments (w/o thread) to pop after the call | |
77 bool check_exceptions // whether to check for pending exceptions after return | |
78 ); | |
79 | |
80 // These routines should emit JVMTI PopFrame and ForceEarlyReturn handling code. | |
81 // The implementation is only non-empty for the InterpreterMacroAssembler, | |
82 // as only the interpreter handles PopFrame and ForceEarlyReturn requests. | |
83 virtual void check_and_handle_popframe(Register java_thread); | |
84 virtual void check_and_handle_earlyret(Register java_thread); | |
85 | |
86 void call_VM_helper(Register oop_result, address entry_point, int number_of_arguments, bool check_exceptions = true); | |
87 | |
88 // helpers for FPU flag access | |
89 // tmp is a temporary register, if none is available use noreg | |
90 void save_rax (Register tmp); | |
91 void restore_rax(Register tmp); | |
92 | |
93 public: | |
94 MacroAssembler(CodeBuffer* code) : Assembler(code) {} | |
95 | |
96 // Support for NULL-checks | |
97 // | |
98 // Generates code that causes a NULL OS exception if the content of reg is NULL. | |
99 // If the accessed location is M[reg + offset] and the offset is known, provide the | |
100 // offset. No explicit code generation is needed if the offset is within a certain | |
101 // range (0 <= offset <= page_size). | |
102 | |
103 void null_check(Register reg, int offset = -1); | |
104 static bool needs_explicit_null_check(intptr_t offset); | |
105 | |
106 // Required platform-specific helpers for Label::patch_instructions. | |
107 // They _shadow_ the declarations in AbstractAssembler, which are undefined. | |
108 void pd_patch_instruction(address branch, address target) { | |
109 unsigned char op = branch[0]; | |
110 assert(op == 0xE8 /* call */ || | |
111 op == 0xE9 /* jmp */ || | |
112 op == 0xEB /* short jmp */ || | |
113 (op & 0xF0) == 0x70 /* short jcc */ || | |
114 op == 0x0F && (branch[1] & 0xF0) == 0x80 /* jcc */, | |
115 "Invalid opcode at patch point"); | |
116 | |
117 if (op == 0xEB || (op & 0xF0) == 0x70) { | |
118 // short offset operators (jmp and jcc) | |
119 char* disp = (char*) &branch[1]; | |
120 int imm8 = target - (address) &disp[1]; | |
121 guarantee(this->is8bit(imm8), "Short forward jump exceeds 8-bit offset"); | |
122 *disp = imm8; | |
123 } else { | |
124 int* disp = (int*) &branch[(op == 0x0F)? 2: 1]; | |
125 int imm32 = target - (address) &disp[1]; | |
126 *disp = imm32; | |
127 } | |
128 } | |
129 | |
130 // The following 4 methods return the offset of the appropriate move instruction | |
131 | |
132 // Support for fast byte/short loading with zero extension (depending on particular CPU) | |
133 int load_unsigned_byte(Register dst, Address src); | |
134 int load_unsigned_short(Register dst, Address src); | |
135 | |
136 // Support for fast byte/short loading with sign extension (depending on particular CPU) | |
137 int load_signed_byte(Register dst, Address src); | |
138 int load_signed_short(Register dst, Address src); | |
139 | |
140 // Support for sign-extension (hi:lo = extend_sign(lo)) | |
141 void extend_sign(Register hi, Register lo); | |
142 | |
143 // Load and store values by size and signed-ness | |
144 void load_sized_value(Register dst, Address src, size_t size_in_bytes, bool is_signed, Register dst2 = noreg); | |
145 void store_sized_value(Address dst, Register src, size_t size_in_bytes, Register src2 = noreg); | |
146 | |
147 // Support for inc/dec with optimal instruction selection depending on value | |
148 | |
149 void increment(Register reg, int value = 1) { LP64_ONLY(incrementq(reg, value)) NOT_LP64(incrementl(reg, value)) ; } | |
150 void decrement(Register reg, int value = 1) { LP64_ONLY(decrementq(reg, value)) NOT_LP64(decrementl(reg, value)) ; } | |
151 | |
152 void decrementl(Address dst, int value = 1); | |
153 void decrementl(Register reg, int value = 1); | |
154 | |
155 void decrementq(Register reg, int value = 1); | |
156 void decrementq(Address dst, int value = 1); | |
157 | |
158 void incrementl(Address dst, int value = 1); | |
159 void incrementl(Register reg, int value = 1); | |
160 | |
161 void incrementq(Register reg, int value = 1); | |
162 void incrementq(Address dst, int value = 1); | |
163 | |
164 | |
165 // Support optimal SSE move instructions. | |
166 void movflt(XMMRegister dst, XMMRegister src) { | |
167 if (UseXmmRegToRegMoveAll) { movaps(dst, src); return; } | |
168 else { movss (dst, src); return; } | |
169 } | |
170 void movflt(XMMRegister dst, Address src) { movss(dst, src); } | |
171 void movflt(XMMRegister dst, AddressLiteral src); | |
172 void movflt(Address dst, XMMRegister src) { movss(dst, src); } | |
173 | |
174 void movdbl(XMMRegister dst, XMMRegister src) { | |
175 if (UseXmmRegToRegMoveAll) { movapd(dst, src); return; } | |
176 else { movsd (dst, src); return; } | |
177 } | |
178 | |
179 void movdbl(XMMRegister dst, AddressLiteral src); | |
180 | |
181 void movdbl(XMMRegister dst, Address src) { | |
182 if (UseXmmLoadAndClearUpper) { movsd (dst, src); return; } | |
183 else { movlpd(dst, src); return; } | |
184 } | |
185 void movdbl(Address dst, XMMRegister src) { movsd(dst, src); } | |
186 | |
187 void incrementl(AddressLiteral dst); | |
188 void incrementl(ArrayAddress dst); | |
189 | |
190 // Alignment | |
191 void align(int modulus); | |
192 | |
193 // A 5 byte nop that is safe for patching (see patch_verified_entry) | |
194 void fat_nop(); | |
195 | |
196 // Stack frame creation/removal | |
197 void enter(); | |
198 void leave(); | |
199 | |
200 // Support for getting the JavaThread pointer (i.e.; a reference to thread-local information) | |
201 // The pointer will be loaded into the thread register. | |
202 void get_thread(Register thread); | |
203 | |
204 | |
205 // Support for VM calls | |
206 // | |
207 // It is imperative that all calls into the VM are handled via the call_VM macros. | |
208 // They make sure that the stack linkage is setup correctly. call_VM's correspond | |
209 // to ENTRY/ENTRY_X entry points while call_VM_leaf's correspond to LEAF entry points. | |
210 | |
211 | |
212 void call_VM(Register oop_result, | |
213 address entry_point, | |
214 bool check_exceptions = true); | |
215 void call_VM(Register oop_result, | |
216 address entry_point, | |
217 Register arg_1, | |
218 bool check_exceptions = true); | |
219 void call_VM(Register oop_result, | |
220 address entry_point, | |
221 Register arg_1, Register arg_2, | |
222 bool check_exceptions = true); | |
223 void call_VM(Register oop_result, | |
224 address entry_point, | |
225 Register arg_1, Register arg_2, Register arg_3, | |
226 bool check_exceptions = true); | |
227 | |
228 // Overloadings with last_Java_sp | |
229 void call_VM(Register oop_result, | |
230 Register last_java_sp, | |
231 address entry_point, | |
232 int number_of_arguments = 0, | |
233 bool check_exceptions = true); | |
234 void call_VM(Register oop_result, | |
235 Register last_java_sp, | |
236 address entry_point, | |
237 Register arg_1, bool | |
238 check_exceptions = true); | |
239 void call_VM(Register oop_result, | |
240 Register last_java_sp, | |
241 address entry_point, | |
242 Register arg_1, Register arg_2, | |
243 bool check_exceptions = true); | |
244 void call_VM(Register oop_result, | |
245 Register last_java_sp, | |
246 address entry_point, | |
247 Register arg_1, Register arg_2, Register arg_3, | |
248 bool check_exceptions = true); | |
249 | |
250 void get_vm_result (Register oop_result, Register thread); | |
251 void get_vm_result_2(Register metadata_result, Register thread); | |
252 | |
253 // These always tightly bind to MacroAssembler::call_VM_base | |
254 // bypassing the virtual implementation | |
255 void super_call_VM(Register oop_result, Register last_java_sp, address entry_point, int number_of_arguments = 0, bool check_exceptions = true); | |
256 void super_call_VM(Register oop_result, Register last_java_sp, address entry_point, Register arg_1, bool check_exceptions = true); | |
257 void super_call_VM(Register oop_result, Register last_java_sp, address entry_point, Register arg_1, Register arg_2, bool check_exceptions = true); | |
258 void super_call_VM(Register oop_result, Register last_java_sp, address entry_point, Register arg_1, Register arg_2, Register arg_3, bool check_exceptions = true); | |
259 void super_call_VM(Register oop_result, Register last_java_sp, address entry_point, Register arg_1, Register arg_2, Register arg_3, Register arg_4, bool check_exceptions = true); | |
260 | |
261 void call_VM_leaf(address entry_point, | |
262 int number_of_arguments = 0); | |
263 void call_VM_leaf(address entry_point, | |
264 Register arg_1); | |
265 void call_VM_leaf(address entry_point, | |
266 Register arg_1, Register arg_2); | |
267 void call_VM_leaf(address entry_point, | |
268 Register arg_1, Register arg_2, Register arg_3); | |
269 | |
270 // These always tightly bind to MacroAssembler::call_VM_leaf_base | |
271 // bypassing the virtual implementation | |
272 void super_call_VM_leaf(address entry_point); | |
273 void super_call_VM_leaf(address entry_point, Register arg_1); | |
274 void super_call_VM_leaf(address entry_point, Register arg_1, Register arg_2); | |
275 void super_call_VM_leaf(address entry_point, Register arg_1, Register arg_2, Register arg_3); | |
276 void super_call_VM_leaf(address entry_point, Register arg_1, Register arg_2, Register arg_3, Register arg_4); | |
277 | |
278 // last Java Frame (fills frame anchor) | |
279 void set_last_Java_frame(Register thread, | |
280 Register last_java_sp, | |
281 Register last_java_fp, | |
282 address last_java_pc); | |
283 | |
284 // thread in the default location (r15_thread on 64bit) | |
285 void set_last_Java_frame(Register last_java_sp, | |
286 Register last_java_fp, | |
287 address last_java_pc); | |
288 | |
289 void reset_last_Java_frame(Register thread, bool clear_fp, bool clear_pc); | |
290 | |
291 // thread in the default location (r15_thread on 64bit) | |
292 void reset_last_Java_frame(bool clear_fp, bool clear_pc); | |
293 | |
294 // Stores | |
295 void store_check(Register obj); // store check for obj - register is destroyed afterwards | |
296 void store_check(Register obj, Address dst); // same as above, dst is exact store location (reg. is destroyed) | |
297 | |
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298 #if INCLUDE_ALL_GCS |
7199 | 299 |
300 void g1_write_barrier_pre(Register obj, | |
301 Register pre_val, | |
302 Register thread, | |
303 Register tmp, | |
304 bool tosca_live, | |
305 bool expand_call); | |
306 | |
307 void g1_write_barrier_post(Register store_addr, | |
308 Register new_val, | |
309 Register thread, | |
310 Register tmp, | |
311 Register tmp2); | |
312 | |
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313 #endif // INCLUDE_ALL_GCS |
7199 | 314 |
315 // split store_check(Register obj) to enhance instruction interleaving | |
316 void store_check_part_1(Register obj); | |
317 void store_check_part_2(Register obj); | |
318 | |
319 // C 'boolean' to Java boolean: x == 0 ? 0 : 1 | |
320 void c2bool(Register x); | |
321 | |
322 // C++ bool manipulation | |
323 | |
324 void movbool(Register dst, Address src); | |
325 void movbool(Address dst, bool boolconst); | |
326 void movbool(Address dst, Register src); | |
327 void testbool(Register dst); | |
328 | |
329 // oop manipulations | |
330 void load_klass(Register dst, Register src); | |
331 void store_klass(Register dst, Register src); | |
332 | |
333 void load_heap_oop(Register dst, Address src); | |
334 void load_heap_oop_not_null(Register dst, Address src); | |
335 void store_heap_oop(Address dst, Register src); | |
336 void cmp_heap_oop(Register src1, Address src2, Register tmp = noreg); | |
337 | |
338 // Used for storing NULL. All other oop constants should be | |
339 // stored using routines that take a jobject. | |
340 void store_heap_oop_null(Address dst); | |
341 | |
342 void load_prototype_header(Register dst, Register src); | |
343 | |
344 #ifdef _LP64 | |
345 void store_klass_gap(Register dst, Register src); | |
346 | |
347 // This dummy is to prevent a call to store_heap_oop from | |
348 // converting a zero (like NULL) into a Register by giving | |
349 // the compiler two choices it can't resolve | |
350 | |
351 void store_heap_oop(Address dst, void* dummy); | |
352 | |
353 void encode_heap_oop(Register r); | |
354 void decode_heap_oop(Register r); | |
355 void encode_heap_oop_not_null(Register r); | |
356 void decode_heap_oop_not_null(Register r); | |
357 void encode_heap_oop_not_null(Register dst, Register src); | |
358 void decode_heap_oop_not_null(Register dst, Register src); | |
359 | |
360 void set_narrow_oop(Register dst, jobject obj); | |
361 void set_narrow_oop(Address dst, jobject obj); | |
362 void cmp_narrow_oop(Register dst, jobject obj); | |
363 void cmp_narrow_oop(Address dst, jobject obj); | |
364 | |
365 void encode_klass_not_null(Register r); | |
366 void decode_klass_not_null(Register r); | |
367 void encode_klass_not_null(Register dst, Register src); | |
368 void decode_klass_not_null(Register dst, Register src); | |
369 void set_narrow_klass(Register dst, Klass* k); | |
370 void set_narrow_klass(Address dst, Klass* k); | |
371 void cmp_narrow_klass(Register dst, Klass* k); | |
372 void cmp_narrow_klass(Address dst, Klass* k); | |
373 | |
374 // if heap base register is used - reinit it with the correct value | |
375 void reinit_heapbase(); | |
376 | |
377 DEBUG_ONLY(void verify_heapbase(const char* msg);) | |
378 | |
379 #endif // _LP64 | |
380 | |
381 // Int division/remainder for Java | |
382 // (as idivl, but checks for special case as described in JVM spec.) | |
383 // returns idivl instruction offset for implicit exception handling | |
384 int corrected_idivl(Register reg); | |
385 | |
386 // Long division/remainder for Java | |
387 // (as idivq, but checks for special case as described in JVM spec.) | |
388 // returns idivq instruction offset for implicit exception handling | |
389 int corrected_idivq(Register reg); | |
390 | |
391 void int3(); | |
392 | |
393 // Long operation macros for a 32bit cpu | |
394 // Long negation for Java | |
395 void lneg(Register hi, Register lo); | |
396 | |
397 // Long multiplication for Java | |
398 // (destroys contents of eax, ebx, ecx and edx) | |
399 void lmul(int x_rsp_offset, int y_rsp_offset); // rdx:rax = x * y | |
400 | |
401 // Long shifts for Java | |
402 // (semantics as described in JVM spec.) | |
403 void lshl(Register hi, Register lo); // hi:lo << (rcx & 0x3f) | |
404 void lshr(Register hi, Register lo, bool sign_extension = false); // hi:lo >> (rcx & 0x3f) | |
405 | |
406 // Long compare for Java | |
407 // (semantics as described in JVM spec.) | |
408 void lcmp2int(Register x_hi, Register x_lo, Register y_hi, Register y_lo); // x_hi = lcmp(x, y) | |
409 | |
410 | |
411 // misc | |
412 | |
413 // Sign extension | |
414 void sign_extend_short(Register reg); | |
415 void sign_extend_byte(Register reg); | |
416 | |
417 // Division by power of 2, rounding towards 0 | |
418 void division_with_shift(Register reg, int shift_value); | |
419 | |
420 // Compares the top-most stack entries on the FPU stack and sets the eflags as follows: | |
421 // | |
422 // CF (corresponds to C0) if x < y | |
423 // PF (corresponds to C2) if unordered | |
424 // ZF (corresponds to C3) if x = y | |
425 // | |
426 // The arguments are in reversed order on the stack (i.e., top of stack is first argument). | |
427 // tmp is a temporary register, if none is available use noreg (only matters for non-P6 code) | |
428 void fcmp(Register tmp); | |
429 // Variant of the above which allows y to be further down the stack | |
430 // and which only pops x and y if specified. If pop_right is | |
431 // specified then pop_left must also be specified. | |
432 void fcmp(Register tmp, int index, bool pop_left, bool pop_right); | |
433 | |
434 // Floating-point comparison for Java | |
435 // Compares the top-most stack entries on the FPU stack and stores the result in dst. | |
436 // The arguments are in reversed order on the stack (i.e., top of stack is first argument). | |
437 // (semantics as described in JVM spec.) | |
438 void fcmp2int(Register dst, bool unordered_is_less); | |
439 // Variant of the above which allows y to be further down the stack | |
440 // and which only pops x and y if specified. If pop_right is | |
441 // specified then pop_left must also be specified. | |
442 void fcmp2int(Register dst, bool unordered_is_less, int index, bool pop_left, bool pop_right); | |
443 | |
444 // Floating-point remainder for Java (ST0 = ST0 fremr ST1, ST1 is empty afterwards) | |
445 // tmp is a temporary register, if none is available use noreg | |
446 void fremr(Register tmp); | |
447 | |
448 | |
449 // same as fcmp2int, but using SSE2 | |
450 void cmpss2int(XMMRegister opr1, XMMRegister opr2, Register dst, bool unordered_is_less); | |
451 void cmpsd2int(XMMRegister opr1, XMMRegister opr2, Register dst, bool unordered_is_less); | |
452 | |
453 // Inlined sin/cos generator for Java; must not use CPU instruction | |
454 // directly on Intel as it does not have high enough precision | |
455 // outside of the range [-pi/4, pi/4]. Extra argument indicate the | |
456 // number of FPU stack slots in use; all but the topmost will | |
457 // require saving if a slow case is necessary. Assumes argument is | |
458 // on FP TOS; result is on FP TOS. No cpu registers are changed by | |
459 // this code. | |
460 void trigfunc(char trig, int num_fpu_regs_in_use = 1); | |
461 | |
462 // branch to L if FPU flag C2 is set/not set | |
463 // tmp is a temporary register, if none is available use noreg | |
464 void jC2 (Register tmp, Label& L); | |
465 void jnC2(Register tmp, Label& L); | |
466 | |
467 // Pop ST (ffree & fincstp combined) | |
468 void fpop(); | |
469 | |
470 // pushes double TOS element of FPU stack on CPU stack; pops from FPU stack | |
471 void push_fTOS(); | |
472 | |
473 // pops double TOS element from CPU stack and pushes on FPU stack | |
474 void pop_fTOS(); | |
475 | |
476 void empty_FPU_stack(); | |
477 | |
478 void push_IU_state(); | |
479 void pop_IU_state(); | |
480 | |
481 void push_FPU_state(); | |
482 void pop_FPU_state(); | |
483 | |
484 void push_CPU_state(); | |
485 void pop_CPU_state(); | |
486 | |
487 // Round up to a power of two | |
488 void round_to(Register reg, int modulus); | |
489 | |
490 // Callee saved registers handling | |
491 void push_callee_saved_registers(); | |
492 void pop_callee_saved_registers(); | |
493 | |
494 // allocation | |
495 void eden_allocate( | |
496 Register obj, // result: pointer to object after successful allocation | |
497 Register var_size_in_bytes, // object size in bytes if unknown at compile time; invalid otherwise | |
498 int con_size_in_bytes, // object size in bytes if known at compile time | |
499 Register t1, // temp register | |
500 Label& slow_case // continuation point if fast allocation fails | |
501 ); | |
502 void tlab_allocate( | |
503 Register obj, // result: pointer to object after successful allocation | |
504 Register var_size_in_bytes, // object size in bytes if unknown at compile time; invalid otherwise | |
505 int con_size_in_bytes, // object size in bytes if known at compile time | |
506 Register t1, // temp register | |
507 Register t2, // temp register | |
508 Label& slow_case // continuation point if fast allocation fails | |
509 ); | |
510 Register tlab_refill(Label& retry_tlab, Label& try_eden, Label& slow_case); // returns TLS address | |
511 void incr_allocated_bytes(Register thread, | |
512 Register var_size_in_bytes, int con_size_in_bytes, | |
513 Register t1 = noreg); | |
514 | |
515 // interface method calling | |
516 void lookup_interface_method(Register recv_klass, | |
517 Register intf_klass, | |
518 RegisterOrConstant itable_index, | |
519 Register method_result, | |
520 Register scan_temp, | |
521 Label& no_such_interface); | |
522 | |
523 // virtual method calling | |
524 void lookup_virtual_method(Register recv_klass, | |
525 RegisterOrConstant vtable_index, | |
526 Register method_result); | |
527 | |
528 // Test sub_klass against super_klass, with fast and slow paths. | |
529 | |
530 // The fast path produces a tri-state answer: yes / no / maybe-slow. | |
531 // One of the three labels can be NULL, meaning take the fall-through. | |
532 // If super_check_offset is -1, the value is loaded up from super_klass. | |
533 // No registers are killed, except temp_reg. | |
534 void check_klass_subtype_fast_path(Register sub_klass, | |
535 Register super_klass, | |
536 Register temp_reg, | |
537 Label* L_success, | |
538 Label* L_failure, | |
539 Label* L_slow_path, | |
540 RegisterOrConstant super_check_offset = RegisterOrConstant(-1)); | |
541 | |
542 // The rest of the type check; must be wired to a corresponding fast path. | |
543 // It does not repeat the fast path logic, so don't use it standalone. | |
544 // The temp_reg and temp2_reg can be noreg, if no temps are available. | |
545 // Updates the sub's secondary super cache as necessary. | |
546 // If set_cond_codes, condition codes will be Z on success, NZ on failure. | |
547 void check_klass_subtype_slow_path(Register sub_klass, | |
548 Register super_klass, | |
549 Register temp_reg, | |
550 Register temp2_reg, | |
551 Label* L_success, | |
552 Label* L_failure, | |
553 bool set_cond_codes = false); | |
554 | |
555 // Simplified, combined version, good for typical uses. | |
556 // Falls through on failure. | |
557 void check_klass_subtype(Register sub_klass, | |
558 Register super_klass, | |
559 Register temp_reg, | |
560 Label& L_success); | |
561 | |
562 // method handles (JSR 292) | |
563 Address argument_address(RegisterOrConstant arg_slot, int extra_slot_offset = 0); | |
564 | |
565 //---- | |
566 void set_word_if_not_zero(Register reg); // sets reg to 1 if not zero, otherwise 0 | |
567 | |
568 // Debugging | |
569 | |
570 // only if +VerifyOops | |
571 // TODO: Make these macros with file and line like sparc version! | |
572 void verify_oop(Register reg, const char* s = "broken oop"); | |
573 void verify_oop_addr(Address addr, const char * s = "broken oop addr"); | |
574 | |
575 // TODO: verify method and klass metadata (compare against vptr?) | |
576 void _verify_method_ptr(Register reg, const char * msg, const char * file, int line) {} | |
577 void _verify_klass_ptr(Register reg, const char * msg, const char * file, int line){} | |
578 | |
579 #define verify_method_ptr(reg) _verify_method_ptr(reg, "broken method " #reg, __FILE__, __LINE__) | |
580 #define verify_klass_ptr(reg) _verify_klass_ptr(reg, "broken klass " #reg, __FILE__, __LINE__) | |
581 | |
582 // only if +VerifyFPU | |
583 void verify_FPU(int stack_depth, const char* s = "illegal FPU state"); | |
584 | |
585 // prints msg, dumps registers and stops execution | |
586 void stop(const char* msg); | |
587 | |
588 // prints msg and continues | |
589 void warn(const char* msg); | |
590 | |
591 // dumps registers and other state | |
592 void print_state(); | |
593 | |
594 static void debug32(int rdi, int rsi, int rbp, int rsp, int rbx, int rdx, int rcx, int rax, int eip, char* msg); | |
595 static void debug64(char* msg, int64_t pc, int64_t regs[]); | |
596 static void print_state32(int rdi, int rsi, int rbp, int rsp, int rbx, int rdx, int rcx, int rax, int eip); | |
597 static void print_state64(int64_t pc, int64_t regs[]); | |
598 | |
599 void os_breakpoint(); | |
600 | |
601 void untested() { stop("untested"); } | |
602 | |
603 void unimplemented(const char* what = "") { char* b = new char[1024]; jio_snprintf(b, 1024, "unimplemented: %s", what); stop(b); } | |
604 | |
605 void should_not_reach_here() { stop("should not reach here"); } | |
606 | |
607 void print_CPU_state(); | |
608 | |
609 // Stack overflow checking | |
610 void bang_stack_with_offset(int offset) { | |
611 // stack grows down, caller passes positive offset | |
612 assert(offset > 0, "must bang with negative offset"); | |
613 movl(Address(rsp, (-offset)), rax); | |
614 } | |
615 | |
616 // Writes to stack successive pages until offset reached to check for | |
617 // stack overflow + shadow pages. Also, clobbers tmp | |
618 void bang_stack_size(Register size, Register tmp); | |
619 | |
620 virtual RegisterOrConstant delayed_value_impl(intptr_t* delayed_value_addr, | |
621 Register tmp, | |
622 int offset); | |
623 | |
624 // Support for serializing memory accesses between threads | |
625 void serialize_memory(Register thread, Register tmp); | |
626 | |
627 void verify_tlab(); | |
628 | |
629 // Biased locking support | |
630 // lock_reg and obj_reg must be loaded up with the appropriate values. | |
631 // swap_reg must be rax, and is killed. | |
632 // tmp_reg is optional. If it is supplied (i.e., != noreg) it will | |
633 // be killed; if not supplied, push/pop will be used internally to | |
634 // allocate a temporary (inefficient, avoid if possible). | |
635 // Optional slow case is for implementations (interpreter and C1) which branch to | |
636 // slow case directly. Leaves condition codes set for C2's Fast_Lock node. | |
637 // Returns offset of first potentially-faulting instruction for null | |
638 // check info (currently consumed only by C1). If | |
639 // swap_reg_contains_mark is true then returns -1 as it is assumed | |
640 // the calling code has already passed any potential faults. | |
641 int biased_locking_enter(Register lock_reg, Register obj_reg, | |
642 Register swap_reg, Register tmp_reg, | |
643 bool swap_reg_contains_mark, | |
644 Label& done, Label* slow_case = NULL, | |
645 BiasedLockingCounters* counters = NULL); | |
646 void biased_locking_exit (Register obj_reg, Register temp_reg, Label& done); | |
647 | |
648 | |
649 Condition negate_condition(Condition cond); | |
650 | |
651 // Instructions that use AddressLiteral operands. These instruction can handle 32bit/64bit | |
652 // operands. In general the names are modified to avoid hiding the instruction in Assembler | |
653 // so that we don't need to implement all the varieties in the Assembler with trivial wrappers | |
654 // here in MacroAssembler. The major exception to this rule is call | |
655 | |
656 // Arithmetics | |
657 | |
658 | |
659 void addptr(Address dst, int32_t src) { LP64_ONLY(addq(dst, src)) NOT_LP64(addl(dst, src)) ; } | |
660 void addptr(Address dst, Register src); | |
661 | |
662 void addptr(Register dst, Address src) { LP64_ONLY(addq(dst, src)) NOT_LP64(addl(dst, src)); } | |
663 void addptr(Register dst, int32_t src); | |
664 void addptr(Register dst, Register src); | |
665 void addptr(Register dst, RegisterOrConstant src) { | |
666 if (src.is_constant()) addptr(dst, (int) src.as_constant()); | |
667 else addptr(dst, src.as_register()); | |
668 } | |
669 | |
670 void andptr(Register dst, int32_t src); | |
671 void andptr(Register src1, Register src2) { LP64_ONLY(andq(src1, src2)) NOT_LP64(andl(src1, src2)) ; } | |
672 | |
673 void cmp8(AddressLiteral src1, int imm); | |
674 | |
675 // renamed to drag out the casting of address to int32_t/intptr_t | |
676 void cmp32(Register src1, int32_t imm); | |
677 | |
678 void cmp32(AddressLiteral src1, int32_t imm); | |
679 // compare reg - mem, or reg - &mem | |
680 void cmp32(Register src1, AddressLiteral src2); | |
681 | |
682 void cmp32(Register src1, Address src2); | |
683 | |
684 #ifndef _LP64 | |
685 void cmpklass(Address dst, Metadata* obj); | |
686 void cmpklass(Register dst, Metadata* obj); | |
687 void cmpoop(Address dst, jobject obj); | |
688 void cmpoop(Register dst, jobject obj); | |
689 #endif // _LP64 | |
690 | |
691 // NOTE src2 must be the lval. This is NOT an mem-mem compare | |
692 void cmpptr(Address src1, AddressLiteral src2); | |
693 | |
694 void cmpptr(Register src1, AddressLiteral src2); | |
695 | |
696 void cmpptr(Register src1, Register src2) { LP64_ONLY(cmpq(src1, src2)) NOT_LP64(cmpl(src1, src2)) ; } | |
697 void cmpptr(Register src1, Address src2) { LP64_ONLY(cmpq(src1, src2)) NOT_LP64(cmpl(src1, src2)) ; } | |
698 // void cmpptr(Address src1, Register src2) { LP64_ONLY(cmpq(src1, src2)) NOT_LP64(cmpl(src1, src2)) ; } | |
699 | |
700 void cmpptr(Register src1, int32_t src2) { LP64_ONLY(cmpq(src1, src2)) NOT_LP64(cmpl(src1, src2)) ; } | |
701 void cmpptr(Address src1, int32_t src2) { LP64_ONLY(cmpq(src1, src2)) NOT_LP64(cmpl(src1, src2)) ; } | |
702 | |
703 // cmp64 to avoild hiding cmpq | |
704 void cmp64(Register src1, AddressLiteral src); | |
705 | |
706 void cmpxchgptr(Register reg, Address adr); | |
707 | |
708 void locked_cmpxchgptr(Register reg, AddressLiteral adr); | |
709 | |
710 | |
711 void imulptr(Register dst, Register src) { LP64_ONLY(imulq(dst, src)) NOT_LP64(imull(dst, src)); } | |
712 | |
713 | |
714 void negptr(Register dst) { LP64_ONLY(negq(dst)) NOT_LP64(negl(dst)); } | |
715 | |
716 void notptr(Register dst) { LP64_ONLY(notq(dst)) NOT_LP64(notl(dst)); } | |
717 | |
718 void shlptr(Register dst, int32_t shift); | |
719 void shlptr(Register dst) { LP64_ONLY(shlq(dst)) NOT_LP64(shll(dst)); } | |
720 | |
721 void shrptr(Register dst, int32_t shift); | |
722 void shrptr(Register dst) { LP64_ONLY(shrq(dst)) NOT_LP64(shrl(dst)); } | |
723 | |
724 void sarptr(Register dst) { LP64_ONLY(sarq(dst)) NOT_LP64(sarl(dst)); } | |
725 void sarptr(Register dst, int32_t src) { LP64_ONLY(sarq(dst, src)) NOT_LP64(sarl(dst, src)); } | |
726 | |
727 void subptr(Address dst, int32_t src) { LP64_ONLY(subq(dst, src)) NOT_LP64(subl(dst, src)); } | |
728 | |
729 void subptr(Register dst, Address src) { LP64_ONLY(subq(dst, src)) NOT_LP64(subl(dst, src)); } | |
730 void subptr(Register dst, int32_t src); | |
731 // Force generation of a 4 byte immediate value even if it fits into 8bit | |
732 void subptr_imm32(Register dst, int32_t src); | |
733 void subptr(Register dst, Register src); | |
734 void subptr(Register dst, RegisterOrConstant src) { | |
735 if (src.is_constant()) subptr(dst, (int) src.as_constant()); | |
736 else subptr(dst, src.as_register()); | |
737 } | |
738 | |
739 void sbbptr(Address dst, int32_t src) { LP64_ONLY(sbbq(dst, src)) NOT_LP64(sbbl(dst, src)); } | |
740 void sbbptr(Register dst, int32_t src) { LP64_ONLY(sbbq(dst, src)) NOT_LP64(sbbl(dst, src)); } | |
741 | |
742 void xchgptr(Register src1, Register src2) { LP64_ONLY(xchgq(src1, src2)) NOT_LP64(xchgl(src1, src2)) ; } | |
743 void xchgptr(Register src1, Address src2) { LP64_ONLY(xchgq(src1, src2)) NOT_LP64(xchgl(src1, src2)) ; } | |
744 | |
745 void xaddptr(Address src1, Register src2) { LP64_ONLY(xaddq(src1, src2)) NOT_LP64(xaddl(src1, src2)) ; } | |
746 | |
747 | |
748 | |
749 // Helper functions for statistics gathering. | |
750 // Conditionally (atomically, on MPs) increments passed counter address, preserving condition codes. | |
751 void cond_inc32(Condition cond, AddressLiteral counter_addr); | |
752 // Unconditional atomic increment. | |
753 void atomic_incl(AddressLiteral counter_addr); | |
754 | |
755 void lea(Register dst, AddressLiteral adr); | |
756 void lea(Address dst, AddressLiteral adr); | |
757 void lea(Register dst, Address adr) { Assembler::lea(dst, adr); } | |
758 | |
759 void leal32(Register dst, Address src) { leal(dst, src); } | |
760 | |
761 // Import other testl() methods from the parent class or else | |
762 // they will be hidden by the following overriding declaration. | |
763 using Assembler::testl; | |
764 void testl(Register dst, AddressLiteral src); | |
765 | |
766 void orptr(Register dst, Address src) { LP64_ONLY(orq(dst, src)) NOT_LP64(orl(dst, src)); } | |
767 void orptr(Register dst, Register src) { LP64_ONLY(orq(dst, src)) NOT_LP64(orl(dst, src)); } | |
768 void orptr(Register dst, int32_t src) { LP64_ONLY(orq(dst, src)) NOT_LP64(orl(dst, src)); } | |
769 | |
770 void testptr(Register src, int32_t imm32) { LP64_ONLY(testq(src, imm32)) NOT_LP64(testl(src, imm32)); } | |
771 void testptr(Register src1, Register src2); | |
772 | |
773 void xorptr(Register dst, Register src) { LP64_ONLY(xorq(dst, src)) NOT_LP64(xorl(dst, src)); } | |
774 void xorptr(Register dst, Address src) { LP64_ONLY(xorq(dst, src)) NOT_LP64(xorl(dst, src)); } | |
775 | |
776 // Calls | |
777 | |
778 void call(Label& L, relocInfo::relocType rtype); | |
779 void call(Register entry); | |
780 | |
781 // NOTE: this call tranfers to the effective address of entry NOT | |
782 // the address contained by entry. This is because this is more natural | |
783 // for jumps/calls. | |
784 void call(AddressLiteral entry); | |
785 | |
786 // Emit the CompiledIC call idiom | |
787 void ic_call(address entry); | |
788 | |
789 // Jumps | |
790 | |
791 // NOTE: these jumps tranfer to the effective address of dst NOT | |
792 // the address contained by dst. This is because this is more natural | |
793 // for jumps/calls. | |
794 void jump(AddressLiteral dst); | |
795 void jump_cc(Condition cc, AddressLiteral dst); | |
796 | |
797 // 32bit can do a case table jump in one instruction but we no longer allow the base | |
798 // to be installed in the Address class. This jump will tranfers to the address | |
799 // contained in the location described by entry (not the address of entry) | |
800 void jump(ArrayAddress entry); | |
801 | |
802 // Floating | |
803 | |
804 void andpd(XMMRegister dst, Address src) { Assembler::andpd(dst, src); } | |
805 void andpd(XMMRegister dst, AddressLiteral src); | |
806 | |
807 void andps(XMMRegister dst, XMMRegister src) { Assembler::andps(dst, src); } | |
808 void andps(XMMRegister dst, Address src) { Assembler::andps(dst, src); } | |
809 void andps(XMMRegister dst, AddressLiteral src); | |
810 | |
811 void comiss(XMMRegister dst, XMMRegister src) { Assembler::comiss(dst, src); } | |
812 void comiss(XMMRegister dst, Address src) { Assembler::comiss(dst, src); } | |
813 void comiss(XMMRegister dst, AddressLiteral src); | |
814 | |
815 void comisd(XMMRegister dst, XMMRegister src) { Assembler::comisd(dst, src); } | |
816 void comisd(XMMRegister dst, Address src) { Assembler::comisd(dst, src); } | |
817 void comisd(XMMRegister dst, AddressLiteral src); | |
818 | |
819 void fadd_s(Address src) { Assembler::fadd_s(src); } | |
820 void fadd_s(AddressLiteral src) { Assembler::fadd_s(as_Address(src)); } | |
821 | |
822 void fldcw(Address src) { Assembler::fldcw(src); } | |
823 void fldcw(AddressLiteral src); | |
824 | |
825 void fld_s(int index) { Assembler::fld_s(index); } | |
826 void fld_s(Address src) { Assembler::fld_s(src); } | |
827 void fld_s(AddressLiteral src); | |
828 | |
829 void fld_d(Address src) { Assembler::fld_d(src); } | |
830 void fld_d(AddressLiteral src); | |
831 | |
832 void fld_x(Address src) { Assembler::fld_x(src); } | |
833 void fld_x(AddressLiteral src); | |
834 | |
835 void fmul_s(Address src) { Assembler::fmul_s(src); } | |
836 void fmul_s(AddressLiteral src) { Assembler::fmul_s(as_Address(src)); } | |
837 | |
838 void ldmxcsr(Address src) { Assembler::ldmxcsr(src); } | |
839 void ldmxcsr(AddressLiteral src); | |
840 | |
841 // compute pow(x,y) and exp(x) with x86 instructions. Don't cover | |
842 // all corner cases and may result in NaN and require fallback to a | |
843 // runtime call. | |
844 void fast_pow(); | |
845 void fast_exp(); | |
846 void increase_precision(); | |
847 void restore_precision(); | |
848 | |
849 // computes exp(x). Fallback to runtime call included. | |
850 void exp_with_fallback(int num_fpu_regs_in_use) { pow_or_exp(true, num_fpu_regs_in_use); } | |
851 // computes pow(x,y). Fallback to runtime call included. | |
852 void pow_with_fallback(int num_fpu_regs_in_use) { pow_or_exp(false, num_fpu_regs_in_use); } | |
853 | |
854 private: | |
855 | |
856 // call runtime as a fallback for trig functions and pow/exp. | |
857 void fp_runtime_fallback(address runtime_entry, int nb_args, int num_fpu_regs_in_use); | |
858 | |
859 // computes 2^(Ylog2X); Ylog2X in ST(0) | |
860 void pow_exp_core_encoding(); | |
861 | |
862 // computes pow(x,y) or exp(x). Fallback to runtime call included. | |
863 void pow_or_exp(bool is_exp, int num_fpu_regs_in_use); | |
864 | |
865 // these are private because users should be doing movflt/movdbl | |
866 | |
867 void movss(Address dst, XMMRegister src) { Assembler::movss(dst, src); } | |
868 void movss(XMMRegister dst, XMMRegister src) { Assembler::movss(dst, src); } | |
869 void movss(XMMRegister dst, Address src) { Assembler::movss(dst, src); } | |
870 void movss(XMMRegister dst, AddressLiteral src); | |
871 | |
872 void movlpd(XMMRegister dst, Address src) {Assembler::movlpd(dst, src); } | |
873 void movlpd(XMMRegister dst, AddressLiteral src); | |
874 | |
875 public: | |
876 | |
877 void addsd(XMMRegister dst, XMMRegister src) { Assembler::addsd(dst, src); } | |
878 void addsd(XMMRegister dst, Address src) { Assembler::addsd(dst, src); } | |
879 void addsd(XMMRegister dst, AddressLiteral src); | |
880 | |
881 void addss(XMMRegister dst, XMMRegister src) { Assembler::addss(dst, src); } | |
882 void addss(XMMRegister dst, Address src) { Assembler::addss(dst, src); } | |
883 void addss(XMMRegister dst, AddressLiteral src); | |
884 | |
885 void divsd(XMMRegister dst, XMMRegister src) { Assembler::divsd(dst, src); } | |
886 void divsd(XMMRegister dst, Address src) { Assembler::divsd(dst, src); } | |
887 void divsd(XMMRegister dst, AddressLiteral src); | |
888 | |
889 void divss(XMMRegister dst, XMMRegister src) { Assembler::divss(dst, src); } | |
890 void divss(XMMRegister dst, Address src) { Assembler::divss(dst, src); } | |
891 void divss(XMMRegister dst, AddressLiteral src); | |
892 | |
893 // Move Unaligned Double Quadword | |
894 void movdqu(Address dst, XMMRegister src) { Assembler::movdqu(dst, src); } | |
895 void movdqu(XMMRegister dst, Address src) { Assembler::movdqu(dst, src); } | |
896 void movdqu(XMMRegister dst, XMMRegister src) { Assembler::movdqu(dst, src); } | |
897 void movdqu(XMMRegister dst, AddressLiteral src); | |
898 | |
899 void movsd(XMMRegister dst, XMMRegister src) { Assembler::movsd(dst, src); } | |
900 void movsd(Address dst, XMMRegister src) { Assembler::movsd(dst, src); } | |
901 void movsd(XMMRegister dst, Address src) { Assembler::movsd(dst, src); } | |
902 void movsd(XMMRegister dst, AddressLiteral src); | |
903 | |
904 void mulsd(XMMRegister dst, XMMRegister src) { Assembler::mulsd(dst, src); } | |
905 void mulsd(XMMRegister dst, Address src) { Assembler::mulsd(dst, src); } | |
906 void mulsd(XMMRegister dst, AddressLiteral src); | |
907 | |
908 void mulss(XMMRegister dst, XMMRegister src) { Assembler::mulss(dst, src); } | |
909 void mulss(XMMRegister dst, Address src) { Assembler::mulss(dst, src); } | |
910 void mulss(XMMRegister dst, AddressLiteral src); | |
911 | |
912 void sqrtsd(XMMRegister dst, XMMRegister src) { Assembler::sqrtsd(dst, src); } | |
913 void sqrtsd(XMMRegister dst, Address src) { Assembler::sqrtsd(dst, src); } | |
914 void sqrtsd(XMMRegister dst, AddressLiteral src); | |
915 | |
916 void sqrtss(XMMRegister dst, XMMRegister src) { Assembler::sqrtss(dst, src); } | |
917 void sqrtss(XMMRegister dst, Address src) { Assembler::sqrtss(dst, src); } | |
918 void sqrtss(XMMRegister dst, AddressLiteral src); | |
919 | |
920 void subsd(XMMRegister dst, XMMRegister src) { Assembler::subsd(dst, src); } | |
921 void subsd(XMMRegister dst, Address src) { Assembler::subsd(dst, src); } | |
922 void subsd(XMMRegister dst, AddressLiteral src); | |
923 | |
924 void subss(XMMRegister dst, XMMRegister src) { Assembler::subss(dst, src); } | |
925 void subss(XMMRegister dst, Address src) { Assembler::subss(dst, src); } | |
926 void subss(XMMRegister dst, AddressLiteral src); | |
927 | |
928 void ucomiss(XMMRegister dst, XMMRegister src) { Assembler::ucomiss(dst, src); } | |
929 void ucomiss(XMMRegister dst, Address src) { Assembler::ucomiss(dst, src); } | |
930 void ucomiss(XMMRegister dst, AddressLiteral src); | |
931 | |
932 void ucomisd(XMMRegister dst, XMMRegister src) { Assembler::ucomisd(dst, src); } | |
933 void ucomisd(XMMRegister dst, Address src) { Assembler::ucomisd(dst, src); } | |
934 void ucomisd(XMMRegister dst, AddressLiteral src); | |
935 | |
936 // Bitwise Logical XOR of Packed Double-Precision Floating-Point Values | |
937 void xorpd(XMMRegister dst, XMMRegister src) { Assembler::xorpd(dst, src); } | |
938 void xorpd(XMMRegister dst, Address src) { Assembler::xorpd(dst, src); } | |
939 void xorpd(XMMRegister dst, AddressLiteral src); | |
940 | |
941 // Bitwise Logical XOR of Packed Single-Precision Floating-Point Values | |
942 void xorps(XMMRegister dst, XMMRegister src) { Assembler::xorps(dst, src); } | |
943 void xorps(XMMRegister dst, Address src) { Assembler::xorps(dst, src); } | |
944 void xorps(XMMRegister dst, AddressLiteral src); | |
945 | |
946 // Shuffle Bytes | |
947 void pshufb(XMMRegister dst, XMMRegister src) { Assembler::pshufb(dst, src); } | |
948 void pshufb(XMMRegister dst, Address src) { Assembler::pshufb(dst, src); } | |
949 void pshufb(XMMRegister dst, AddressLiteral src); | |
950 // AVX 3-operands instructions | |
951 | |
952 void vaddsd(XMMRegister dst, XMMRegister nds, XMMRegister src) { Assembler::vaddsd(dst, nds, src); } | |
953 void vaddsd(XMMRegister dst, XMMRegister nds, Address src) { Assembler::vaddsd(dst, nds, src); } | |
954 void vaddsd(XMMRegister dst, XMMRegister nds, AddressLiteral src); | |
955 | |
956 void vaddss(XMMRegister dst, XMMRegister nds, XMMRegister src) { Assembler::vaddss(dst, nds, src); } | |
957 void vaddss(XMMRegister dst, XMMRegister nds, Address src) { Assembler::vaddss(dst, nds, src); } | |
958 void vaddss(XMMRegister dst, XMMRegister nds, AddressLiteral src); | |
959 | |
960 void vandpd(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256) { Assembler::vandpd(dst, nds, src, vector256); } | |
961 void vandpd(XMMRegister dst, XMMRegister nds, Address src, bool vector256) { Assembler::vandpd(dst, nds, src, vector256); } | |
962 void vandpd(XMMRegister dst, XMMRegister nds, AddressLiteral src, bool vector256); | |
963 | |
964 void vandps(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256) { Assembler::vandps(dst, nds, src, vector256); } | |
965 void vandps(XMMRegister dst, XMMRegister nds, Address src, bool vector256) { Assembler::vandps(dst, nds, src, vector256); } | |
966 void vandps(XMMRegister dst, XMMRegister nds, AddressLiteral src, bool vector256); | |
967 | |
968 void vdivsd(XMMRegister dst, XMMRegister nds, XMMRegister src) { Assembler::vdivsd(dst, nds, src); } | |
969 void vdivsd(XMMRegister dst, XMMRegister nds, Address src) { Assembler::vdivsd(dst, nds, src); } | |
970 void vdivsd(XMMRegister dst, XMMRegister nds, AddressLiteral src); | |
971 | |
972 void vdivss(XMMRegister dst, XMMRegister nds, XMMRegister src) { Assembler::vdivss(dst, nds, src); } | |
973 void vdivss(XMMRegister dst, XMMRegister nds, Address src) { Assembler::vdivss(dst, nds, src); } | |
974 void vdivss(XMMRegister dst, XMMRegister nds, AddressLiteral src); | |
975 | |
976 void vmulsd(XMMRegister dst, XMMRegister nds, XMMRegister src) { Assembler::vmulsd(dst, nds, src); } | |
977 void vmulsd(XMMRegister dst, XMMRegister nds, Address src) { Assembler::vmulsd(dst, nds, src); } | |
978 void vmulsd(XMMRegister dst, XMMRegister nds, AddressLiteral src); | |
979 | |
980 void vmulss(XMMRegister dst, XMMRegister nds, XMMRegister src) { Assembler::vmulss(dst, nds, src); } | |
981 void vmulss(XMMRegister dst, XMMRegister nds, Address src) { Assembler::vmulss(dst, nds, src); } | |
982 void vmulss(XMMRegister dst, XMMRegister nds, AddressLiteral src); | |
983 | |
984 void vsubsd(XMMRegister dst, XMMRegister nds, XMMRegister src) { Assembler::vsubsd(dst, nds, src); } | |
985 void vsubsd(XMMRegister dst, XMMRegister nds, Address src) { Assembler::vsubsd(dst, nds, src); } | |
986 void vsubsd(XMMRegister dst, XMMRegister nds, AddressLiteral src); | |
987 | |
988 void vsubss(XMMRegister dst, XMMRegister nds, XMMRegister src) { Assembler::vsubss(dst, nds, src); } | |
989 void vsubss(XMMRegister dst, XMMRegister nds, Address src) { Assembler::vsubss(dst, nds, src); } | |
990 void vsubss(XMMRegister dst, XMMRegister nds, AddressLiteral src); | |
991 | |
992 // AVX Vector instructions | |
993 | |
994 void vxorpd(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256) { Assembler::vxorpd(dst, nds, src, vector256); } | |
995 void vxorpd(XMMRegister dst, XMMRegister nds, Address src, bool vector256) { Assembler::vxorpd(dst, nds, src, vector256); } | |
996 void vxorpd(XMMRegister dst, XMMRegister nds, AddressLiteral src, bool vector256); | |
997 | |
998 void vxorps(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256) { Assembler::vxorps(dst, nds, src, vector256); } | |
999 void vxorps(XMMRegister dst, XMMRegister nds, Address src, bool vector256) { Assembler::vxorps(dst, nds, src, vector256); } | |
1000 void vxorps(XMMRegister dst, XMMRegister nds, AddressLiteral src, bool vector256); | |
1001 | |
1002 void vpxor(XMMRegister dst, XMMRegister nds, XMMRegister src, bool vector256) { | |
1003 if (UseAVX > 1 || !vector256) // vpxor 256 bit is available only in AVX2 | |
1004 Assembler::vpxor(dst, nds, src, vector256); | |
1005 else | |
1006 Assembler::vxorpd(dst, nds, src, vector256); | |
1007 } | |
1008 void vpxor(XMMRegister dst, XMMRegister nds, Address src, bool vector256) { | |
1009 if (UseAVX > 1 || !vector256) // vpxor 256 bit is available only in AVX2 | |
1010 Assembler::vpxor(dst, nds, src, vector256); | |
1011 else | |
1012 Assembler::vxorpd(dst, nds, src, vector256); | |
1013 } | |
1014 | |
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1015 // Simple version for AVX2 256bit vectors |
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1016 void vpxor(XMMRegister dst, XMMRegister src) { Assembler::vpxor(dst, dst, src, true); } |
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1017 void vpxor(XMMRegister dst, Address src) { Assembler::vpxor(dst, dst, src, true); } |
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1018 |
7199 | 1019 // Move packed integer values from low 128 bit to hign 128 bit in 256 bit vector. |
1020 void vinserti128h(XMMRegister dst, XMMRegister nds, XMMRegister src) { | |
1021 if (UseAVX > 1) // vinserti128h is available only in AVX2 | |
1022 Assembler::vinserti128h(dst, nds, src); | |
1023 else | |
1024 Assembler::vinsertf128h(dst, nds, src); | |
1025 } | |
1026 | |
1027 // Data | |
1028 | |
1029 void cmov32( Condition cc, Register dst, Address src); | |
1030 void cmov32( Condition cc, Register dst, Register src); | |
1031 | |
1032 void cmov( Condition cc, Register dst, Register src) { cmovptr(cc, dst, src); } | |
1033 | |
1034 void cmovptr(Condition cc, Register dst, Address src) { LP64_ONLY(cmovq(cc, dst, src)) NOT_LP64(cmov32(cc, dst, src)); } | |
1035 void cmovptr(Condition cc, Register dst, Register src) { LP64_ONLY(cmovq(cc, dst, src)) NOT_LP64(cmov32(cc, dst, src)); } | |
1036 | |
1037 void movoop(Register dst, jobject obj); | |
1038 void movoop(Address dst, jobject obj); | |
1039 | |
1040 void mov_metadata(Register dst, Metadata* obj); | |
1041 void mov_metadata(Address dst, Metadata* obj); | |
1042 | |
1043 void movptr(ArrayAddress dst, Register src); | |
1044 // can this do an lea? | |
1045 void movptr(Register dst, ArrayAddress src); | |
1046 | |
1047 void movptr(Register dst, Address src); | |
1048 | |
1049 void movptr(Register dst, AddressLiteral src); | |
1050 | |
1051 void movptr(Register dst, intptr_t src); | |
1052 void movptr(Register dst, Register src); | |
1053 void movptr(Address dst, intptr_t src); | |
1054 | |
1055 void movptr(Address dst, Register src); | |
1056 | |
1057 void movptr(Register dst, RegisterOrConstant src) { | |
1058 if (src.is_constant()) movptr(dst, src.as_constant()); | |
1059 else movptr(dst, src.as_register()); | |
1060 } | |
1061 | |
1062 #ifdef _LP64 | |
1063 // Generally the next two are only used for moving NULL | |
1064 // Although there are situations in initializing the mark word where | |
1065 // they could be used. They are dangerous. | |
1066 | |
1067 // They only exist on LP64 so that int32_t and intptr_t are not the same | |
1068 // and we have ambiguous declarations. | |
1069 | |
1070 void movptr(Address dst, int32_t imm32); | |
1071 void movptr(Register dst, int32_t imm32); | |
1072 #endif // _LP64 | |
1073 | |
1074 // to avoid hiding movl | |
1075 void mov32(AddressLiteral dst, Register src); | |
1076 void mov32(Register dst, AddressLiteral src); | |
1077 | |
1078 // to avoid hiding movb | |
1079 void movbyte(ArrayAddress dst, int src); | |
1080 | |
1081 // Import other mov() methods from the parent class or else | |
1082 // they will be hidden by the following overriding declaration. | |
1083 using Assembler::movdl; | |
1084 using Assembler::movq; | |
1085 void movdl(XMMRegister dst, AddressLiteral src); | |
1086 void movq(XMMRegister dst, AddressLiteral src); | |
1087 | |
1088 // Can push value or effective address | |
1089 void pushptr(AddressLiteral src); | |
1090 | |
1091 void pushptr(Address src) { LP64_ONLY(pushq(src)) NOT_LP64(pushl(src)); } | |
1092 void popptr(Address src) { LP64_ONLY(popq(src)) NOT_LP64(popl(src)); } | |
1093 | |
1094 void pushoop(jobject obj); | |
1095 void pushklass(Metadata* obj); | |
1096 | |
1097 // sign extend as need a l to ptr sized element | |
1098 void movl2ptr(Register dst, Address src) { LP64_ONLY(movslq(dst, src)) NOT_LP64(movl(dst, src)); } | |
1099 void movl2ptr(Register dst, Register src) { LP64_ONLY(movslq(dst, src)) NOT_LP64(if (dst != src) movl(dst, src)); } | |
1100 | |
1101 // C2 compiled method's prolog code. | |
1102 void verified_entry(int framesize, bool stack_bang, bool fp_mode_24b); | |
1103 | |
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1104 // clear memory of size 'cnt' qwords, starting at 'base'. |
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1105 void clear_mem(Register base, Register cnt, Register rtmp); |
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1106 |
7199 | 1107 // IndexOf strings. |
1108 // Small strings are loaded through stack if they cross page boundary. | |
1109 void string_indexof(Register str1, Register str2, | |
1110 Register cnt1, Register cnt2, | |
1111 int int_cnt2, Register result, | |
1112 XMMRegister vec, Register tmp); | |
1113 | |
1114 // IndexOf for constant substrings with size >= 8 elements | |
1115 // which don't need to be loaded through stack. | |
1116 void string_indexofC8(Register str1, Register str2, | |
1117 Register cnt1, Register cnt2, | |
1118 int int_cnt2, Register result, | |
1119 XMMRegister vec, Register tmp); | |
1120 | |
1121 // Smallest code: we don't need to load through stack, | |
1122 // check string tail. | |
1123 | |
1124 // Compare strings. | |
1125 void string_compare(Register str1, Register str2, | |
1126 Register cnt1, Register cnt2, Register result, | |
1127 XMMRegister vec1); | |
1128 | |
1129 // Compare char[] arrays. | |
1130 void char_arrays_equals(bool is_array_equ, Register ary1, Register ary2, | |
1131 Register limit, Register result, Register chr, | |
1132 XMMRegister vec1, XMMRegister vec2); | |
1133 | |
1134 // Fill primitive arrays | |
1135 void generate_fill(BasicType t, bool aligned, | |
1136 Register to, Register value, Register count, | |
1137 Register rtmp, XMMRegister xtmp); | |
1138 | |
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1139 void encode_iso_array(Register src, Register dst, Register len, |
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1140 XMMRegister tmp1, XMMRegister tmp2, XMMRegister tmp3, |
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1141 XMMRegister tmp4, Register tmp5, Register result); |
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1142 |
7199 | 1143 #undef VIRTUAL |
1144 | |
1145 }; | |
1146 | |
1147 /** | |
1148 * class SkipIfEqual: | |
1149 * | |
1150 * Instantiating this class will result in assembly code being output that will | |
1151 * jump around any code emitted between the creation of the instance and it's | |
1152 * automatic destruction at the end of a scope block, depending on the value of | |
1153 * the flag passed to the constructor, which will be checked at run-time. | |
1154 */ | |
1155 class SkipIfEqual { | |
1156 private: | |
1157 MacroAssembler* _masm; | |
1158 Label _label; | |
1159 | |
1160 public: | |
1161 SkipIfEqual(MacroAssembler*, const bool* flag_addr, bool value); | |
1162 ~SkipIfEqual(); | |
1163 }; | |
1164 | |
1165 #endif // CPU_X86_VM_MACROASSEMBLER_X86_HPP |