1 // Copyright 2012 the V8 project authors. All rights reserved. 2 // Redistribution and use in source and binary forms, with or without 3 // modification, are permitted provided that the following conditions are 4 // met: 5 // 6 // * Redistributions of source code must retain the above copyright 7 // notice, this list of conditions and the following disclaimer. 8 // * Redistributions in binary form must reproduce the above 9 // copyright notice, this list of conditions and the following 10 // disclaimer in the documentation and/or other materials provided 11 // with the distribution. 12 // * Neither the name of Google Inc. nor the names of its 13 // contributors may be used to endorse or promote products derived 14 // from this software without specific prior written permission. 15 // 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 28 #include "src/v8.h" 29 30 #include "src/disassembler.h" 31 #include "src/factory.h" 32 #include "src/macro-assembler.h" 33 #include "src/mips64/macro-assembler-mips64.h" 34 #include "src/mips64/simulator-mips64.h" 35 36 #include "test/cctest/cctest.h" 37 38 using namespace v8::internal; 39 40 41 // Define these function prototypes to match JSEntryFunction in execution.cc. 42 typedef Object* (*F1)(int x, int p1, int p2, int p3, int p4); 43 typedef Object* (*F2)(int x, int y, int p2, int p3, int p4); 44 typedef Object* (*F3)(void* p, int p1, int p2, int p3, int p4); 45 46 47 #define __ assm. 48 49 50 TEST(MIPS0) { 51 CcTest::InitializeVM(); 52 Isolate* isolate = CcTest::i_isolate(); 53 HandleScope scope(isolate); 54 55 MacroAssembler assm(isolate, NULL, 0); 56 57 // Addition. 58 __ addu(v0, a0, a1); 59 __ jr(ra); 60 __ nop(); 61 62 CodeDesc desc; 63 assm.GetCode(&desc); 64 Handle<Code> code = isolate->factory()->NewCode( 65 desc, Code::ComputeFlags(Code::STUB), Handle<Code>()); 66 F2 f = FUNCTION_CAST<F2>(code->entry()); 67 int64_t res = 68 reinterpret_cast<int64_t>(CALL_GENERATED_CODE(f, 0xab0, 0xc, 0, 0, 0)); 69 ::printf("f() = %ld\n", res); 70 CHECK_EQ(0xabcL, res); 71 } 72 73 74 TEST(MIPS1) { 75 CcTest::InitializeVM(); 76 Isolate* isolate = CcTest::i_isolate(); 77 HandleScope scope(isolate); 78 79 MacroAssembler assm(isolate, NULL, 0); 80 Label L, C; 81 82 __ mov(a1, a0); 83 __ li(v0, 0); 84 __ b(&C); 85 __ nop(); 86 87 __ bind(&L); 88 __ addu(v0, v0, a1); 89 __ addiu(a1, a1, -1); 90 91 __ bind(&C); 92 __ xori(v1, a1, 0); 93 __ Branch(&L, ne, v1, Operand((int64_t)0)); 94 __ nop(); 95 96 __ jr(ra); 97 __ nop(); 98 99 CodeDesc desc; 100 assm.GetCode(&desc); 101 Handle<Code> code = isolate->factory()->NewCode( 102 desc, Code::ComputeFlags(Code::STUB), Handle<Code>()); 103 F1 f = FUNCTION_CAST<F1>(code->entry()); 104 int64_t res = 105 reinterpret_cast<int64_t>(CALL_GENERATED_CODE(f, 50, 0, 0, 0, 0)); 106 ::printf("f() = %ld\n", res); 107 CHECK_EQ(1275L, res); 108 } 109 110 111 TEST(MIPS2) { 112 CcTest::InitializeVM(); 113 Isolate* isolate = CcTest::i_isolate(); 114 HandleScope scope(isolate); 115 116 MacroAssembler assm(isolate, NULL, 0); 117 118 Label exit, error; 119 120 // ----- Test all instructions. 121 122 // Test lui, ori, and addiu, used in the li pseudo-instruction. 123 // This way we can then safely load registers with chosen values. 124 125 __ ori(a4, zero_reg, 0); 126 __ lui(a4, 0x1234); 127 __ ori(a4, a4, 0); 128 __ ori(a4, a4, 0x0f0f); 129 __ ori(a4, a4, 0xf0f0); 130 __ addiu(a5, a4, 1); 131 __ addiu(a6, a5, -0x10); 132 133 // Load values in temporary registers. 134 __ li(a4, 0x00000004); 135 __ li(a5, 0x00001234); 136 __ li(a6, 0x12345678); 137 __ li(a7, 0x7fffffff); 138 __ li(t0, 0xfffffffc); 139 __ li(t1, 0xffffedcc); 140 __ li(t2, 0xedcba988); 141 __ li(t3, 0x80000000); 142 143 // SPECIAL class. 144 __ srl(v0, a6, 8); // 0x00123456 145 __ sll(v0, v0, 11); // 0x91a2b000 146 __ sra(v0, v0, 3); // 0xf2345600 147 __ srav(v0, v0, a4); // 0xff234560 148 __ sllv(v0, v0, a4); // 0xf2345600 149 __ srlv(v0, v0, a4); // 0x0f234560 150 __ Branch(&error, ne, v0, Operand(0x0f234560)); 151 __ nop(); 152 153 __ addu(v0, a4, a5); // 0x00001238 154 __ subu(v0, v0, a4); // 0x00001234 155 __ Branch(&error, ne, v0, Operand(0x00001234)); 156 __ nop(); 157 __ addu(v1, a7, a4); // 32bit addu result is sign-extended into 64bit reg. 158 __ Branch(&error, ne, v1, Operand(0xffffffff80000003)); 159 __ nop(); 160 __ subu(v1, t3, a4); // 0x7ffffffc 161 __ Branch(&error, ne, v1, Operand(0x7ffffffc)); 162 __ nop(); 163 164 __ and_(v0, a5, a6); // 0x0000000000001230 165 __ or_(v0, v0, a5); // 0x0000000000001234 166 __ xor_(v0, v0, a6); // 0x000000001234444c 167 __ nor(v0, v0, a6); // 0xffffffffedcba987 168 __ Branch(&error, ne, v0, Operand(0xffffffffedcba983)); 169 __ nop(); 170 171 // Shift both 32bit number to left, to preserve meaning of next comparison. 172 __ dsll32(a7, a7, 0); 173 __ dsll32(t3, t3, 0); 174 175 __ slt(v0, t3, a7); 176 __ Branch(&error, ne, v0, Operand(0x1)); 177 __ nop(); 178 __ sltu(v0, t3, a7); 179 __ Branch(&error, ne, v0, Operand(zero_reg)); 180 __ nop(); 181 182 // Restore original values in registers. 183 __ dsrl32(a7, a7, 0); 184 __ dsrl32(t3, t3, 0); 185 // End of SPECIAL class. 186 187 __ addiu(v0, zero_reg, 0x7421); // 0x00007421 188 __ addiu(v0, v0, -0x1); // 0x00007420 189 __ addiu(v0, v0, -0x20); // 0x00007400 190 __ Branch(&error, ne, v0, Operand(0x00007400)); 191 __ nop(); 192 __ addiu(v1, a7, 0x1); // 0x80000000 - result is sign-extended. 193 __ Branch(&error, ne, v1, Operand(0xffffffff80000000)); 194 __ nop(); 195 196 __ slti(v0, a5, 0x00002000); // 0x1 197 __ slti(v0, v0, 0xffff8000); // 0x0 198 __ Branch(&error, ne, v0, Operand(zero_reg)); 199 __ nop(); 200 __ sltiu(v0, a5, 0x00002000); // 0x1 201 __ sltiu(v0, v0, 0x00008000); // 0x1 202 __ Branch(&error, ne, v0, Operand(0x1)); 203 __ nop(); 204 205 __ andi(v0, a5, 0xf0f0); // 0x00001030 206 __ ori(v0, v0, 0x8a00); // 0x00009a30 207 __ xori(v0, v0, 0x83cc); // 0x000019fc 208 __ Branch(&error, ne, v0, Operand(0x000019fc)); 209 __ nop(); 210 __ lui(v1, 0x8123); // Result is sign-extended into 64bit register. 211 __ Branch(&error, ne, v1, Operand(0xffffffff81230000)); 212 __ nop(); 213 214 // Bit twiddling instructions & conditional moves. 215 // Uses a4-t3 as set above. 216 __ Clz(v0, a4); // 29 217 __ Clz(v1, a5); // 19 218 __ addu(v0, v0, v1); // 48 219 __ Clz(v1, a6); // 3 220 __ addu(v0, v0, v1); // 51 221 __ Clz(v1, t3); // 0 222 __ addu(v0, v0, v1); // 51 223 __ Branch(&error, ne, v0, Operand(51)); 224 __ Movn(a0, a7, a4); // Move a0<-a7 (a4 is NOT 0). 225 __ Ins(a0, a5, 12, 8); // 0x7ff34fff 226 __ Branch(&error, ne, a0, Operand(0x7ff34fff)); 227 __ Movz(a0, t2, t3); // a0 not updated (t3 is NOT 0). 228 __ Ext(a1, a0, 8, 12); // 0x34f 229 __ Branch(&error, ne, a1, Operand(0x34f)); 230 __ Movz(a0, t2, v1); // a0<-t2, v0 is 0, from 8 instr back. 231 __ Branch(&error, ne, a0, Operand(t2)); 232 233 // Everything was correctly executed. Load the expected result. 234 __ li(v0, 0x31415926); 235 __ b(&exit); 236 __ nop(); 237 238 __ bind(&error); 239 // Got an error. Return a wrong result. 240 __ li(v0, 666); 241 242 __ bind(&exit); 243 __ jr(ra); 244 __ nop(); 245 246 CodeDesc desc; 247 assm.GetCode(&desc); 248 Handle<Code> code = isolate->factory()->NewCode( 249 desc, Code::ComputeFlags(Code::STUB), Handle<Code>()); 250 F2 f = FUNCTION_CAST<F2>(code->entry()); 251 int64_t res = 252 reinterpret_cast<int64_t>(CALL_GENERATED_CODE(f, 0xab0, 0xc, 0, 0, 0)); 253 ::printf("f() = %ld\n", res); 254 255 CHECK_EQ(0x31415926L, res); 256 } 257 258 259 TEST(MIPS3) { 260 // Test floating point instructions. 261 CcTest::InitializeVM(); 262 Isolate* isolate = CcTest::i_isolate(); 263 HandleScope scope(isolate); 264 265 typedef struct { 266 double a; 267 double b; 268 double c; 269 double d; 270 double e; 271 double f; 272 double g; 273 double h; 274 double i; 275 } T; 276 T t; 277 278 // Create a function that accepts &t, and loads, manipulates, and stores 279 // the doubles t.a ... t.f. 280 MacroAssembler assm(isolate, NULL, 0); 281 Label L, C; 282 283 __ ldc1(f4, MemOperand(a0, OFFSET_OF(T, a)) ); 284 __ ldc1(f6, MemOperand(a0, OFFSET_OF(T, b)) ); 285 __ add_d(f8, f4, f6); 286 __ sdc1(f8, MemOperand(a0, OFFSET_OF(T, c)) ); // c = a + b. 287 288 __ mov_d(f10, f8); // c 289 __ neg_d(f12, f6); // -b 290 __ sub_d(f10, f10, f12); 291 __ sdc1(f10, MemOperand(a0, OFFSET_OF(T, d)) ); // d = c - (-b). 292 293 __ sdc1(f4, MemOperand(a0, OFFSET_OF(T, b)) ); // b = a. 294 295 __ li(a4, 120); 296 __ mtc1(a4, f14); 297 __ cvt_d_w(f14, f14); // f14 = 120.0. 298 __ mul_d(f10, f10, f14); 299 __ sdc1(f10, MemOperand(a0, OFFSET_OF(T, e)) ); // e = d * 120 = 1.8066e16. 300 301 __ div_d(f12, f10, f4); 302 __ sdc1(f12, MemOperand(a0, OFFSET_OF(T, f)) ); // f = e / a = 120.44. 303 304 __ sqrt_d(f14, f12); 305 __ sdc1(f14, MemOperand(a0, OFFSET_OF(T, g)) ); 306 // g = sqrt(f) = 10.97451593465515908537 307 308 if (kArchVariant == kMips64r2) { 309 __ ldc1(f4, MemOperand(a0, OFFSET_OF(T, h)) ); 310 __ ldc1(f6, MemOperand(a0, OFFSET_OF(T, i)) ); 311 __ madd_d(f14, f6, f4, f6); 312 __ sdc1(f14, MemOperand(a0, OFFSET_OF(T, h)) ); 313 } 314 315 __ jr(ra); 316 __ nop(); 317 318 CodeDesc desc; 319 assm.GetCode(&desc); 320 Handle<Code> code = isolate->factory()->NewCode( 321 desc, Code::ComputeFlags(Code::STUB), Handle<Code>()); 322 F3 f = FUNCTION_CAST<F3>(code->entry()); 323 t.a = 1.5e14; 324 t.b = 2.75e11; 325 t.c = 0.0; 326 t.d = 0.0; 327 t.e = 0.0; 328 t.f = 0.0; 329 t.h = 1.5; 330 t.i = 2.75; 331 Object* dummy = CALL_GENERATED_CODE(f, &t, 0, 0, 0, 0); 332 USE(dummy); 333 CHECK_EQ(1.5e14, t.a); 334 CHECK_EQ(1.5e14, t.b); 335 CHECK_EQ(1.50275e14, t.c); 336 CHECK_EQ(1.50550e14, t.d); 337 CHECK_EQ(1.8066e16, t.e); 338 CHECK_EQ(120.44, t.f); 339 CHECK_EQ(10.97451593465515908537, t.g); 340 if (kArchVariant == kMips64r2) { 341 CHECK_EQ(6.875, t.h); 342 } 343 } 344 345 346 TEST(MIPS4) { 347 // Test moves between floating point and integer registers. 348 CcTest::InitializeVM(); 349 Isolate* isolate = CcTest::i_isolate(); 350 HandleScope scope(isolate); 351 352 typedef struct { 353 double a; 354 double b; 355 double c; 356 double d; 357 int64_t high; 358 int64_t low; 359 } T; 360 T t; 361 362 Assembler assm(isolate, NULL, 0); 363 Label L, C; 364 365 __ ldc1(f4, MemOperand(a0, OFFSET_OF(T, a))); 366 __ ldc1(f5, MemOperand(a0, OFFSET_OF(T, b))); 367 368 // Swap f4 and f5, by using 3 integer registers, a4-a6, 369 // both two 32-bit chunks, and one 64-bit chunk. 370 // mXhc1 is mips32/64-r2 only, not r1, 371 // but we will not support r1 in practice. 372 __ mfc1(a4, f4); 373 __ mfhc1(a5, f4); 374 __ dmfc1(a6, f5); 375 376 __ mtc1(a4, f5); 377 __ mthc1(a5, f5); 378 __ dmtc1(a6, f4); 379 380 // Store the swapped f4 and f5 back to memory. 381 __ sdc1(f4, MemOperand(a0, OFFSET_OF(T, a))); 382 __ sdc1(f5, MemOperand(a0, OFFSET_OF(T, c))); 383 384 // Test sign extension of move operations from coprocessor. 385 __ ldc1(f4, MemOperand(a0, OFFSET_OF(T, d))); 386 __ mfhc1(a4, f4); 387 __ mfc1(a5, f4); 388 389 __ sd(a4, MemOperand(a0, OFFSET_OF(T, high))); 390 __ sd(a5, MemOperand(a0, OFFSET_OF(T, low))); 391 392 __ jr(ra); 393 __ nop(); 394 395 CodeDesc desc; 396 assm.GetCode(&desc); 397 Handle<Code> code = isolate->factory()->NewCode( 398 desc, Code::ComputeFlags(Code::STUB), Handle<Code>()); 399 F3 f = FUNCTION_CAST<F3>(code->entry()); 400 t.a = 1.5e22; 401 t.b = 2.75e11; 402 t.c = 17.17; 403 t.d = -2.75e11; 404 Object* dummy = CALL_GENERATED_CODE(f, &t, 0, 0, 0, 0); 405 USE(dummy); 406 407 CHECK_EQ(2.75e11, t.a); 408 CHECK_EQ(2.75e11, t.b); 409 CHECK_EQ(1.5e22, t.c); 410 CHECK_EQ(0xffffffffc25001d1L, t.high); 411 CHECK_EQ(0xffffffffbf800000L, t.low); 412 } 413 414 415 TEST(MIPS5) { 416 // Test conversions between doubles and integers. 417 CcTest::InitializeVM(); 418 Isolate* isolate = CcTest::i_isolate(); 419 HandleScope scope(isolate); 420 421 typedef struct { 422 double a; 423 double b; 424 int i; 425 int j; 426 } T; 427 T t; 428 429 Assembler assm(isolate, NULL, 0); 430 Label L, C; 431 432 // Load all structure elements to registers. 433 __ ldc1(f4, MemOperand(a0, OFFSET_OF(T, a)) ); 434 __ ldc1(f6, MemOperand(a0, OFFSET_OF(T, b)) ); 435 __ lw(a4, MemOperand(a0, OFFSET_OF(T, i)) ); 436 __ lw(a5, MemOperand(a0, OFFSET_OF(T, j)) ); 437 438 // Convert double in f4 to int in element i. 439 __ cvt_w_d(f8, f4); 440 __ mfc1(a6, f8); 441 __ sw(a6, MemOperand(a0, OFFSET_OF(T, i)) ); 442 443 // Convert double in f6 to int in element j. 444 __ cvt_w_d(f10, f6); 445 __ mfc1(a7, f10); 446 __ sw(a7, MemOperand(a0, OFFSET_OF(T, j)) ); 447 448 // Convert int in original i (a4) to double in a. 449 __ mtc1(a4, f12); 450 __ cvt_d_w(f0, f12); 451 __ sdc1(f0, MemOperand(a0, OFFSET_OF(T, a)) ); 452 453 // Convert int in original j (a5) to double in b. 454 __ mtc1(a5, f14); 455 __ cvt_d_w(f2, f14); 456 __ sdc1(f2, MemOperand(a0, OFFSET_OF(T, b)) ); 457 458 __ jr(ra); 459 __ nop(); 460 461 CodeDesc desc; 462 assm.GetCode(&desc); 463 Handle<Code> code = isolate->factory()->NewCode( 464 desc, Code::ComputeFlags(Code::STUB), Handle<Code>()); 465 F3 f = FUNCTION_CAST<F3>(code->entry()); 466 t.a = 1.5e4; 467 t.b = 2.75e8; 468 t.i = 12345678; 469 t.j = -100000; 470 Object* dummy = CALL_GENERATED_CODE(f, &t, 0, 0, 0, 0); 471 USE(dummy); 472 473 CHECK_EQ(12345678.0, t.a); 474 CHECK_EQ(-100000.0, t.b); 475 CHECK_EQ(15000, t.i); 476 CHECK_EQ(275000000, t.j); 477 } 478 479 480 TEST(MIPS6) { 481 // Test simple memory loads and stores. 482 CcTest::InitializeVM(); 483 Isolate* isolate = CcTest::i_isolate(); 484 HandleScope scope(isolate); 485 486 typedef struct { 487 uint32_t ui; 488 int32_t si; 489 int32_t r1; 490 int32_t r2; 491 int32_t r3; 492 int32_t r4; 493 int32_t r5; 494 int32_t r6; 495 } T; 496 T t; 497 498 Assembler assm(isolate, NULL, 0); 499 Label L, C; 500 501 // Basic word load/store. 502 __ lw(a4, MemOperand(a0, OFFSET_OF(T, ui)) ); 503 __ sw(a4, MemOperand(a0, OFFSET_OF(T, r1)) ); 504 505 // lh with positive data. 506 __ lh(a5, MemOperand(a0, OFFSET_OF(T, ui)) ); 507 __ sw(a5, MemOperand(a0, OFFSET_OF(T, r2)) ); 508 509 // lh with negative data. 510 __ lh(a6, MemOperand(a0, OFFSET_OF(T, si)) ); 511 __ sw(a6, MemOperand(a0, OFFSET_OF(T, r3)) ); 512 513 // lhu with negative data. 514 __ lhu(a7, MemOperand(a0, OFFSET_OF(T, si)) ); 515 __ sw(a7, MemOperand(a0, OFFSET_OF(T, r4)) ); 516 517 // lb with negative data. 518 __ lb(t0, MemOperand(a0, OFFSET_OF(T, si)) ); 519 __ sw(t0, MemOperand(a0, OFFSET_OF(T, r5)) ); 520 521 // sh writes only 1/2 of word. 522 __ lui(t1, 0x3333); 523 __ ori(t1, t1, 0x3333); 524 __ sw(t1, MemOperand(a0, OFFSET_OF(T, r6)) ); 525 __ lhu(t1, MemOperand(a0, OFFSET_OF(T, si)) ); 526 __ sh(t1, MemOperand(a0, OFFSET_OF(T, r6)) ); 527 528 __ jr(ra); 529 __ nop(); 530 531 CodeDesc desc; 532 assm.GetCode(&desc); 533 Handle<Code> code = isolate->factory()->NewCode( 534 desc, Code::ComputeFlags(Code::STUB), Handle<Code>()); 535 F3 f = FUNCTION_CAST<F3>(code->entry()); 536 t.ui = 0x11223344; 537 t.si = 0x99aabbcc; 538 Object* dummy = CALL_GENERATED_CODE(f, &t, 0, 0, 0, 0); 539 USE(dummy); 540 541 CHECK_EQ(0x11223344, t.r1); 542 CHECK_EQ(0x3344, t.r2); 543 CHECK_EQ(0xffffbbcc, t.r3); 544 CHECK_EQ(0x0000bbcc, t.r4); 545 CHECK_EQ(0xffffffcc, t.r5); 546 CHECK_EQ(0x3333bbcc, t.r6); 547 } 548 549 550 TEST(MIPS7) { 551 // Test floating point compare and branch instructions. 552 CcTest::InitializeVM(); 553 Isolate* isolate = CcTest::i_isolate(); 554 HandleScope scope(isolate); 555 556 typedef struct { 557 double a; 558 double b; 559 double c; 560 double d; 561 double e; 562 double f; 563 int32_t result; 564 } T; 565 T t; 566 567 // Create a function that accepts &t, and loads, manipulates, and stores 568 // the doubles t.a ... t.f. 569 MacroAssembler assm(isolate, NULL, 0); 570 Label neither_is_nan, less_than, outa_here; 571 572 __ ldc1(f4, MemOperand(a0, OFFSET_OF(T, a)) ); 573 __ ldc1(f6, MemOperand(a0, OFFSET_OF(T, b)) ); 574 if (kArchVariant != kMips64r6) { 575 __ c(UN, D, f4, f6); 576 __ bc1f(&neither_is_nan); 577 } else { 578 __ cmp(UN, L, f2, f4, f6); 579 __ bc1eqz(&neither_is_nan, f2); 580 } 581 __ nop(); 582 __ sw(zero_reg, MemOperand(a0, OFFSET_OF(T, result)) ); 583 __ Branch(&outa_here); 584 585 __ bind(&neither_is_nan); 586 587 if (kArchVariant == kMips64r6) { 588 __ cmp(OLT, L, f2, f6, f4); 589 __ bc1nez(&less_than, f2); 590 } else { 591 __ c(OLT, D, f6, f4, 2); 592 __ bc1t(&less_than, 2); 593 } 594 595 __ nop(); 596 __ sw(zero_reg, MemOperand(a0, OFFSET_OF(T, result)) ); 597 __ Branch(&outa_here); 598 599 __ bind(&less_than); 600 __ Addu(a4, zero_reg, Operand(1)); 601 __ sw(a4, MemOperand(a0, OFFSET_OF(T, result)) ); // Set true. 602 603 604 // This test-case should have additional tests. 605 606 __ bind(&outa_here); 607 608 __ jr(ra); 609 __ nop(); 610 611 CodeDesc desc; 612 assm.GetCode(&desc); 613 Handle<Code> code = isolate->factory()->NewCode( 614 desc, Code::ComputeFlags(Code::STUB), Handle<Code>()); 615 F3 f = FUNCTION_CAST<F3>(code->entry()); 616 t.a = 1.5e14; 617 t.b = 2.75e11; 618 t.c = 2.0; 619 t.d = -4.0; 620 t.e = 0.0; 621 t.f = 0.0; 622 t.result = 0; 623 Object* dummy = CALL_GENERATED_CODE(f, &t, 0, 0, 0, 0); 624 USE(dummy); 625 CHECK_EQ(1.5e14, t.a); 626 CHECK_EQ(2.75e11, t.b); 627 CHECK_EQ(1, t.result); 628 } 629 630 631 TEST(MIPS8) { 632 // Test ROTR and ROTRV instructions. 633 CcTest::InitializeVM(); 634 Isolate* isolate = CcTest::i_isolate(); 635 HandleScope scope(isolate); 636 637 typedef struct { 638 int32_t input; 639 int32_t result_rotr_4; 640 int32_t result_rotr_8; 641 int32_t result_rotr_12; 642 int32_t result_rotr_16; 643 int32_t result_rotr_20; 644 int32_t result_rotr_24; 645 int32_t result_rotr_28; 646 int32_t result_rotrv_4; 647 int32_t result_rotrv_8; 648 int32_t result_rotrv_12; 649 int32_t result_rotrv_16; 650 int32_t result_rotrv_20; 651 int32_t result_rotrv_24; 652 int32_t result_rotrv_28; 653 } T; 654 T t; 655 656 MacroAssembler assm(isolate, NULL, 0); 657 658 // Basic word load. 659 __ lw(a4, MemOperand(a0, OFFSET_OF(T, input)) ); 660 661 // ROTR instruction (called through the Ror macro). 662 __ Ror(a5, a4, 0x0004); 663 __ Ror(a6, a4, 0x0008); 664 __ Ror(a7, a4, 0x000c); 665 __ Ror(t0, a4, 0x0010); 666 __ Ror(t1, a4, 0x0014); 667 __ Ror(t2, a4, 0x0018); 668 __ Ror(t3, a4, 0x001c); 669 670 // Basic word store. 671 __ sw(a5, MemOperand(a0, OFFSET_OF(T, result_rotr_4)) ); 672 __ sw(a6, MemOperand(a0, OFFSET_OF(T, result_rotr_8)) ); 673 __ sw(a7, MemOperand(a0, OFFSET_OF(T, result_rotr_12)) ); 674 __ sw(t0, MemOperand(a0, OFFSET_OF(T, result_rotr_16)) ); 675 __ sw(t1, MemOperand(a0, OFFSET_OF(T, result_rotr_20)) ); 676 __ sw(t2, MemOperand(a0, OFFSET_OF(T, result_rotr_24)) ); 677 __ sw(t3, MemOperand(a0, OFFSET_OF(T, result_rotr_28)) ); 678 679 // ROTRV instruction (called through the Ror macro). 680 __ li(t3, 0x0004); 681 __ Ror(a5, a4, t3); 682 __ li(t3, 0x0008); 683 __ Ror(a6, a4, t3); 684 __ li(t3, 0x000C); 685 __ Ror(a7, a4, t3); 686 __ li(t3, 0x0010); 687 __ Ror(t0, a4, t3); 688 __ li(t3, 0x0014); 689 __ Ror(t1, a4, t3); 690 __ li(t3, 0x0018); 691 __ Ror(t2, a4, t3); 692 __ li(t3, 0x001C); 693 __ Ror(t3, a4, t3); 694 695 // Basic word store. 696 __ sw(a5, MemOperand(a0, OFFSET_OF(T, result_rotrv_4)) ); 697 __ sw(a6, MemOperand(a0, OFFSET_OF(T, result_rotrv_8)) ); 698 __ sw(a7, MemOperand(a0, OFFSET_OF(T, result_rotrv_12)) ); 699 __ sw(t0, MemOperand(a0, OFFSET_OF(T, result_rotrv_16)) ); 700 __ sw(t1, MemOperand(a0, OFFSET_OF(T, result_rotrv_20)) ); 701 __ sw(t2, MemOperand(a0, OFFSET_OF(T, result_rotrv_24)) ); 702 __ sw(t3, MemOperand(a0, OFFSET_OF(T, result_rotrv_28)) ); 703 704 __ jr(ra); 705 __ nop(); 706 707 CodeDesc desc; 708 assm.GetCode(&desc); 709 Handle<Code> code = isolate->factory()->NewCode( 710 desc, Code::ComputeFlags(Code::STUB), Handle<Code>()); 711 F3 f = FUNCTION_CAST<F3>(code->entry()); 712 t.input = 0x12345678; 713 Object* dummy = CALL_GENERATED_CODE(f, &t, 0x0, 0, 0, 0); 714 USE(dummy); 715 CHECK_EQ(0x81234567, t.result_rotr_4); 716 CHECK_EQ(0x78123456, t.result_rotr_8); 717 CHECK_EQ(0x67812345, t.result_rotr_12); 718 CHECK_EQ(0x56781234, t.result_rotr_16); 719 CHECK_EQ(0x45678123, t.result_rotr_20); 720 CHECK_EQ(0x34567812, t.result_rotr_24); 721 CHECK_EQ(0x23456781, t.result_rotr_28); 722 723 CHECK_EQ(0x81234567, t.result_rotrv_4); 724 CHECK_EQ(0x78123456, t.result_rotrv_8); 725 CHECK_EQ(0x67812345, t.result_rotrv_12); 726 CHECK_EQ(0x56781234, t.result_rotrv_16); 727 CHECK_EQ(0x45678123, t.result_rotrv_20); 728 CHECK_EQ(0x34567812, t.result_rotrv_24); 729 CHECK_EQ(0x23456781, t.result_rotrv_28); 730 } 731 732 733 TEST(MIPS9) { 734 // Test BRANCH improvements. 735 CcTest::InitializeVM(); 736 Isolate* isolate = CcTest::i_isolate(); 737 HandleScope scope(isolate); 738 739 MacroAssembler assm(isolate, NULL, 0); 740 Label exit, exit2, exit3; 741 742 __ Branch(&exit, ge, a0, Operand(zero_reg)); 743 __ Branch(&exit2, ge, a0, Operand(0x00001FFF)); 744 __ Branch(&exit3, ge, a0, Operand(0x0001FFFF)); 745 746 __ bind(&exit); 747 __ bind(&exit2); 748 __ bind(&exit3); 749 __ jr(ra); 750 __ nop(); 751 752 CodeDesc desc; 753 assm.GetCode(&desc); 754 isolate->factory()->NewCode( 755 desc, Code::ComputeFlags(Code::STUB), Handle<Code>()); 756 } 757 758 759 TEST(MIPS10) { 760 // Test conversions between doubles and long integers. 761 // Test hos the long ints map to FP regs pairs. 762 CcTest::InitializeVM(); 763 Isolate* isolate = CcTest::i_isolate(); 764 HandleScope scope(isolate); 765 766 typedef struct { 767 double a; 768 double a_converted; 769 double b; 770 int32_t dbl_mant; 771 int32_t dbl_exp; 772 int32_t long_hi; 773 int32_t long_lo; 774 int64_t long_as_int64; 775 int32_t b_long_hi; 776 int32_t b_long_lo; 777 int64_t b_long_as_int64; 778 } T; 779 T t; 780 781 Assembler assm(isolate, NULL, 0); 782 Label L, C; 783 784 if (kArchVariant == kMips64r2) { 785 // Rewritten for FR=1 FPU mode: 786 // - 32 FP regs of 64-bits each, no odd/even pairs. 787 // - Note that cvt_l_d/cvt_d_l ARE legal in FR=1 mode. 788 // Load all structure elements to registers. 789 __ ldc1(f0, MemOperand(a0, OFFSET_OF(T, a))); 790 791 // Save the raw bits of the double. 792 __ mfc1(a4, f0); 793 __ mfhc1(a5, f0); 794 __ sw(a4, MemOperand(a0, OFFSET_OF(T, dbl_mant))); 795 __ sw(a5, MemOperand(a0, OFFSET_OF(T, dbl_exp))); 796 797 // Convert double in f0 to long, save hi/lo parts. 798 __ cvt_l_d(f0, f0); 799 __ mfc1(a4, f0); // f0 LS 32 bits of long. 800 __ mfhc1(a5, f0); // f0 MS 32 bits of long. 801 __ sw(a4, MemOperand(a0, OFFSET_OF(T, long_lo))); 802 __ sw(a5, MemOperand(a0, OFFSET_OF(T, long_hi))); 803 804 // Combine the high/low ints, convert back to double. 805 __ dsll32(a6, a5, 0); // Move a5 to high bits of a6. 806 __ or_(a6, a6, a4); 807 __ dmtc1(a6, f1); 808 __ cvt_d_l(f1, f1); 809 __ sdc1(f1, MemOperand(a0, OFFSET_OF(T, a_converted))); 810 811 812 // Convert the b long integers to double b. 813 __ lw(a4, MemOperand(a0, OFFSET_OF(T, b_long_lo))); 814 __ lw(a5, MemOperand(a0, OFFSET_OF(T, b_long_hi))); 815 __ mtc1(a4, f8); // f8 LS 32-bits. 816 __ mthc1(a5, f8); // f8 MS 32-bits. 817 __ cvt_d_l(f10, f8); 818 __ sdc1(f10, MemOperand(a0, OFFSET_OF(T, b))); 819 820 // Convert double b back to long-int. 821 __ ldc1(f31, MemOperand(a0, OFFSET_OF(T, b))); 822 __ cvt_l_d(f31, f31); 823 __ dmfc1(a7, f31); 824 __ sd(a7, MemOperand(a0, OFFSET_OF(T, b_long_as_int64))); 825 826 827 __ jr(ra); 828 __ nop(); 829 830 CodeDesc desc; 831 assm.GetCode(&desc); 832 Handle<Code> code = isolate->factory()->NewCode( 833 desc, Code::ComputeFlags(Code::STUB), Handle<Code>()); 834 F3 f = FUNCTION_CAST<F3>(code->entry()); 835 t.a = 2.147483647e9; // 0x7fffffff -> 0x41DFFFFFFFC00000 as double. 836 t.b_long_hi = 0x000000ff; // 0xFF00FF00FF -> 0x426FE01FE01FE000 as double. 837 t.b_long_lo = 0x00ff00ff; 838 Object* dummy = CALL_GENERATED_CODE(f, &t, 0, 0, 0, 0); 839 USE(dummy); 840 841 CHECK_EQ(0x41DFFFFF, t.dbl_exp); 842 CHECK_EQ(0xFFC00000, t.dbl_mant); 843 CHECK_EQ(0, t.long_hi); 844 CHECK_EQ(0x7fffffff, t.long_lo); 845 CHECK_EQ(2.147483647e9, t.a_converted); 846 847 // 0xFF00FF00FF -> 1.095233372415e12. 848 CHECK_EQ(1.095233372415e12, t.b); 849 CHECK_EQ(0xFF00FF00FF, t.b_long_as_int64); 850 } 851 } 852 853 854 TEST(MIPS11) { 855 // Do not run test on MIPS64r6, as these instructions are removed. 856 if (kArchVariant != kMips64r6) { 857 // Test LWL, LWR, SWL and SWR instructions. 858 CcTest::InitializeVM(); 859 Isolate* isolate = CcTest::i_isolate(); 860 HandleScope scope(isolate); 861 862 typedef struct { 863 int32_t reg_init; 864 int32_t mem_init; 865 int32_t lwl_0; 866 int32_t lwl_1; 867 int32_t lwl_2; 868 int32_t lwl_3; 869 int32_t lwr_0; 870 int32_t lwr_1; 871 int32_t lwr_2; 872 int32_t lwr_3; 873 int32_t swl_0; 874 int32_t swl_1; 875 int32_t swl_2; 876 int32_t swl_3; 877 int32_t swr_0; 878 int32_t swr_1; 879 int32_t swr_2; 880 int32_t swr_3; 881 } T; 882 T t; 883 884 Assembler assm(isolate, NULL, 0); 885 886 // Test all combinations of LWL and vAddr. 887 __ lw(a4, MemOperand(a0, OFFSET_OF(T, reg_init))); 888 __ lwl(a4, MemOperand(a0, OFFSET_OF(T, mem_init))); 889 __ sw(a4, MemOperand(a0, OFFSET_OF(T, lwl_0))); 890 891 __ lw(a5, MemOperand(a0, OFFSET_OF(T, reg_init))); 892 __ lwl(a5, MemOperand(a0, OFFSET_OF(T, mem_init) + 1)); 893 __ sw(a5, MemOperand(a0, OFFSET_OF(T, lwl_1))); 894 895 __ lw(a6, MemOperand(a0, OFFSET_OF(T, reg_init))); 896 __ lwl(a6, MemOperand(a0, OFFSET_OF(T, mem_init) + 2)); 897 __ sw(a6, MemOperand(a0, OFFSET_OF(T, lwl_2))); 898 899 __ lw(a7, MemOperand(a0, OFFSET_OF(T, reg_init))); 900 __ lwl(a7, MemOperand(a0, OFFSET_OF(T, mem_init) + 3)); 901 __ sw(a7, MemOperand(a0, OFFSET_OF(T, lwl_3))); 902 903 // Test all combinations of LWR and vAddr. 904 __ lw(a4, MemOperand(a0, OFFSET_OF(T, reg_init))); 905 __ lwr(a4, MemOperand(a0, OFFSET_OF(T, mem_init))); 906 __ sw(a4, MemOperand(a0, OFFSET_OF(T, lwr_0))); 907 908 __ lw(a5, MemOperand(a0, OFFSET_OF(T, reg_init))); 909 __ lwr(a5, MemOperand(a0, OFFSET_OF(T, mem_init) + 1)); 910 __ sw(a5, MemOperand(a0, OFFSET_OF(T, lwr_1))); 911 912 __ lw(a6, MemOperand(a0, OFFSET_OF(T, reg_init))); 913 __ lwr(a6, MemOperand(a0, OFFSET_OF(T, mem_init) + 2)); 914 __ sw(a6, MemOperand(a0, OFFSET_OF(T, lwr_2)) ); 915 916 __ lw(a7, MemOperand(a0, OFFSET_OF(T, reg_init))); 917 __ lwr(a7, MemOperand(a0, OFFSET_OF(T, mem_init) + 3)); 918 __ sw(a7, MemOperand(a0, OFFSET_OF(T, lwr_3)) ); 919 920 // Test all combinations of SWL and vAddr. 921 __ lw(a4, MemOperand(a0, OFFSET_OF(T, mem_init))); 922 __ sw(a4, MemOperand(a0, OFFSET_OF(T, swl_0))); 923 __ lw(a4, MemOperand(a0, OFFSET_OF(T, reg_init))); 924 __ swl(a4, MemOperand(a0, OFFSET_OF(T, swl_0))); 925 926 __ lw(a5, MemOperand(a0, OFFSET_OF(T, mem_init))); 927 __ sw(a5, MemOperand(a0, OFFSET_OF(T, swl_1))); 928 __ lw(a5, MemOperand(a0, OFFSET_OF(T, reg_init))); 929 __ swl(a5, MemOperand(a0, OFFSET_OF(T, swl_1) + 1)); 930 931 __ lw(a6, MemOperand(a0, OFFSET_OF(T, mem_init))); 932 __ sw(a6, MemOperand(a0, OFFSET_OF(T, swl_2))); 933 __ lw(a6, MemOperand(a0, OFFSET_OF(T, reg_init))); 934 __ swl(a6, MemOperand(a0, OFFSET_OF(T, swl_2) + 2)); 935 936 __ lw(a7, MemOperand(a0, OFFSET_OF(T, mem_init))); 937 __ sw(a7, MemOperand(a0, OFFSET_OF(T, swl_3))); 938 __ lw(a7, MemOperand(a0, OFFSET_OF(T, reg_init))); 939 __ swl(a7, MemOperand(a0, OFFSET_OF(T, swl_3) + 3)); 940 941 // Test all combinations of SWR and vAddr. 942 __ lw(a4, MemOperand(a0, OFFSET_OF(T, mem_init))); 943 __ sw(a4, MemOperand(a0, OFFSET_OF(T, swr_0))); 944 __ lw(a4, MemOperand(a0, OFFSET_OF(T, reg_init))); 945 __ swr(a4, MemOperand(a0, OFFSET_OF(T, swr_0))); 946 947 __ lw(a5, MemOperand(a0, OFFSET_OF(T, mem_init))); 948 __ sw(a5, MemOperand(a0, OFFSET_OF(T, swr_1))); 949 __ lw(a5, MemOperand(a0, OFFSET_OF(T, reg_init))); 950 __ swr(a5, MemOperand(a0, OFFSET_OF(T, swr_1) + 1)); 951 952 __ lw(a6, MemOperand(a0, OFFSET_OF(T, mem_init))); 953 __ sw(a6, MemOperand(a0, OFFSET_OF(T, swr_2))); 954 __ lw(a6, MemOperand(a0, OFFSET_OF(T, reg_init))); 955 __ swr(a6, MemOperand(a0, OFFSET_OF(T, swr_2) + 2)); 956 957 __ lw(a7, MemOperand(a0, OFFSET_OF(T, mem_init))); 958 __ sw(a7, MemOperand(a0, OFFSET_OF(T, swr_3))); 959 __ lw(a7, MemOperand(a0, OFFSET_OF(T, reg_init))); 960 __ swr(a7, MemOperand(a0, OFFSET_OF(T, swr_3) + 3)); 961 962 __ jr(ra); 963 __ nop(); 964 965 CodeDesc desc; 966 assm.GetCode(&desc); 967 Handle<Code> code = isolate->factory()->NewCode( 968 desc, Code::ComputeFlags(Code::STUB), Handle<Code>()); 969 F3 f = FUNCTION_CAST<F3>(code->entry()); 970 t.reg_init = 0xaabbccdd; 971 t.mem_init = 0x11223344; 972 973 Object* dummy = CALL_GENERATED_CODE(f, &t, 0, 0, 0, 0); 974 USE(dummy); 975 976 CHECK_EQ(0x44bbccdd, t.lwl_0); 977 CHECK_EQ(0x3344ccdd, t.lwl_1); 978 CHECK_EQ(0x223344dd, t.lwl_2); 979 CHECK_EQ(0x11223344, t.lwl_3); 980 981 CHECK_EQ(0x11223344, t.lwr_0); 982 CHECK_EQ(0xaa112233, t.lwr_1); 983 CHECK_EQ(0xaabb1122, t.lwr_2); 984 CHECK_EQ(0xaabbcc11, t.lwr_3); 985 986 CHECK_EQ(0x112233aa, t.swl_0); 987 CHECK_EQ(0x1122aabb, t.swl_1); 988 CHECK_EQ(0x11aabbcc, t.swl_2); 989 CHECK_EQ(0xaabbccdd, t.swl_3); 990 991 CHECK_EQ(0xaabbccdd, t.swr_0); 992 CHECK_EQ(0xbbccdd44, t.swr_1); 993 CHECK_EQ(0xccdd3344, t.swr_2); 994 CHECK_EQ(0xdd223344, t.swr_3); 995 } 996 } 997 998 999 TEST(MIPS12) { 1000 CcTest::InitializeVM(); 1001 Isolate* isolate = CcTest::i_isolate(); 1002 HandleScope scope(isolate); 1003 1004 typedef struct { 1005 int32_t x; 1006 int32_t y; 1007 int32_t y1; 1008 int32_t y2; 1009 int32_t y3; 1010 int32_t y4; 1011 } T; 1012 T t; 1013 1014 MacroAssembler assm(isolate, NULL, 0); 1015 1016 __ mov(t2, fp); // Save frame pointer. 1017 __ mov(fp, a0); // Access struct T by fp. 1018 __ lw(a4, MemOperand(a0, OFFSET_OF(T, y))); 1019 __ lw(a7, MemOperand(a0, OFFSET_OF(T, y4))); 1020 1021 __ addu(a5, a4, a7); 1022 __ subu(t0, a4, a7); 1023 __ nop(); 1024 __ push(a4); // These instructions disappear after opt. 1025 __ Pop(); 1026 __ addu(a4, a4, a4); 1027 __ nop(); 1028 __ Pop(); // These instructions disappear after opt. 1029 __ push(a7); 1030 __ nop(); 1031 __ push(a7); // These instructions disappear after opt. 1032 __ pop(a7); 1033 __ nop(); 1034 __ push(a7); 1035 __ pop(t0); 1036 __ nop(); 1037 __ sw(a4, MemOperand(fp, OFFSET_OF(T, y))); 1038 __ lw(a4, MemOperand(fp, OFFSET_OF(T, y))); 1039 __ nop(); 1040 __ sw(a4, MemOperand(fp, OFFSET_OF(T, y))); 1041 __ lw(a5, MemOperand(fp, OFFSET_OF(T, y))); 1042 __ nop(); 1043 __ push(a5); 1044 __ lw(a5, MemOperand(fp, OFFSET_OF(T, y))); 1045 __ pop(a5); 1046 __ nop(); 1047 __ push(a5); 1048 __ lw(a6, MemOperand(fp, OFFSET_OF(T, y))); 1049 __ pop(a5); 1050 __ nop(); 1051 __ push(a5); 1052 __ lw(a6, MemOperand(fp, OFFSET_OF(T, y))); 1053 __ pop(a6); 1054 __ nop(); 1055 __ push(a6); 1056 __ lw(a6, MemOperand(fp, OFFSET_OF(T, y))); 1057 __ pop(a5); 1058 __ nop(); 1059 __ push(a5); 1060 __ lw(a6, MemOperand(fp, OFFSET_OF(T, y))); 1061 __ pop(a7); 1062 __ nop(); 1063 1064 __ mov(fp, t2); 1065 __ jr(ra); 1066 __ nop(); 1067 1068 CodeDesc desc; 1069 assm.GetCode(&desc); 1070 Handle<Code> code = isolate->factory()->NewCode( 1071 desc, Code::ComputeFlags(Code::STUB), Handle<Code>()); 1072 F3 f = FUNCTION_CAST<F3>(code->entry()); 1073 t.x = 1; 1074 t.y = 2; 1075 t.y1 = 3; 1076 t.y2 = 4; 1077 t.y3 = 0XBABA; 1078 t.y4 = 0xDEDA; 1079 1080 Object* dummy = CALL_GENERATED_CODE(f, &t, 0, 0, 0, 0); 1081 USE(dummy); 1082 1083 CHECK_EQ(3, t.y1); 1084 } 1085 1086 1087 TEST(MIPS13) { 1088 // Test Cvt_d_uw and Trunc_uw_d macros. 1089 CcTest::InitializeVM(); 1090 Isolate* isolate = CcTest::i_isolate(); 1091 HandleScope scope(isolate); 1092 1093 typedef struct { 1094 double cvt_big_out; 1095 double cvt_small_out; 1096 uint32_t trunc_big_out; 1097 uint32_t trunc_small_out; 1098 uint32_t cvt_big_in; 1099 uint32_t cvt_small_in; 1100 } T; 1101 T t; 1102 1103 MacroAssembler assm(isolate, NULL, 0); 1104 1105 __ sw(a4, MemOperand(a0, OFFSET_OF(T, cvt_small_in))); 1106 __ Cvt_d_uw(f10, a4, f22); 1107 __ sdc1(f10, MemOperand(a0, OFFSET_OF(T, cvt_small_out))); 1108 1109 __ Trunc_uw_d(f10, f10, f22); 1110 __ swc1(f10, MemOperand(a0, OFFSET_OF(T, trunc_small_out))); 1111 1112 __ sw(a4, MemOperand(a0, OFFSET_OF(T, cvt_big_in))); 1113 __ Cvt_d_uw(f8, a4, f22); 1114 __ sdc1(f8, MemOperand(a0, OFFSET_OF(T, cvt_big_out))); 1115 1116 __ Trunc_uw_d(f8, f8, f22); 1117 __ swc1(f8, MemOperand(a0, OFFSET_OF(T, trunc_big_out))); 1118 1119 __ jr(ra); 1120 __ nop(); 1121 1122 CodeDesc desc; 1123 assm.GetCode(&desc); 1124 Handle<Code> code = isolate->factory()->NewCode( 1125 desc, Code::ComputeFlags(Code::STUB), Handle<Code>()); 1126 F3 f = FUNCTION_CAST<F3>(code->entry()); 1127 1128 t.cvt_big_in = 0xFFFFFFFF; 1129 t.cvt_small_in = 333; 1130 1131 Object* dummy = CALL_GENERATED_CODE(f, &t, 0, 0, 0, 0); 1132 USE(dummy); 1133 1134 CHECK_EQ(t.cvt_big_out, static_cast<double>(t.cvt_big_in)); 1135 CHECK_EQ(t.cvt_small_out, static_cast<double>(t.cvt_small_in)); 1136 1137 CHECK_EQ(static_cast<int>(t.trunc_big_out), static_cast<int>(t.cvt_big_in)); 1138 CHECK_EQ(static_cast<int>(t.trunc_small_out), 1139 static_cast<int>(t.cvt_small_in)); 1140 } 1141 1142 1143 TEST(MIPS14) { 1144 // Test round, floor, ceil, trunc, cvt. 1145 CcTest::InitializeVM(); 1146 Isolate* isolate = CcTest::i_isolate(); 1147 HandleScope scope(isolate); 1148 1149 #define ROUND_STRUCT_ELEMENT(x) \ 1150 int32_t x##_up_out; \ 1151 int32_t x##_down_out; \ 1152 int32_t neg_##x##_up_out; \ 1153 int32_t neg_##x##_down_out; \ 1154 uint32_t x##_err1_out; \ 1155 uint32_t x##_err2_out; \ 1156 uint32_t x##_err3_out; \ 1157 uint32_t x##_err4_out; \ 1158 int32_t x##_invalid_result; 1159 1160 typedef struct { 1161 double round_up_in; 1162 double round_down_in; 1163 double neg_round_up_in; 1164 double neg_round_down_in; 1165 double err1_in; 1166 double err2_in; 1167 double err3_in; 1168 double err4_in; 1169 1170 ROUND_STRUCT_ELEMENT(round) 1171 ROUND_STRUCT_ELEMENT(floor) 1172 ROUND_STRUCT_ELEMENT(ceil) 1173 ROUND_STRUCT_ELEMENT(trunc) 1174 ROUND_STRUCT_ELEMENT(cvt) 1175 } T; 1176 T t; 1177 1178 #undef ROUND_STRUCT_ELEMENT 1179 1180 MacroAssembler assm(isolate, NULL, 0); 1181 1182 // Save FCSR. 1183 __ cfc1(a1, FCSR); 1184 // Disable FPU exceptions. 1185 __ ctc1(zero_reg, FCSR); 1186 #define RUN_ROUND_TEST(x) \ 1187 __ ldc1(f0, MemOperand(a0, OFFSET_OF(T, round_up_in))); \ 1188 __ x##_w_d(f0, f0); \ 1189 __ swc1(f0, MemOperand(a0, OFFSET_OF(T, x##_up_out))); \ 1190 \ 1191 __ ldc1(f0, MemOperand(a0, OFFSET_OF(T, round_down_in))); \ 1192 __ x##_w_d(f0, f0); \ 1193 __ swc1(f0, MemOperand(a0, OFFSET_OF(T, x##_down_out))); \ 1194 \ 1195 __ ldc1(f0, MemOperand(a0, OFFSET_OF(T, neg_round_up_in))); \ 1196 __ x##_w_d(f0, f0); \ 1197 __ swc1(f0, MemOperand(a0, OFFSET_OF(T, neg_##x##_up_out))); \ 1198 \ 1199 __ ldc1(f0, MemOperand(a0, OFFSET_OF(T, neg_round_down_in))); \ 1200 __ x##_w_d(f0, f0); \ 1201 __ swc1(f0, MemOperand(a0, OFFSET_OF(T, neg_##x##_down_out))); \ 1202 \ 1203 __ ldc1(f0, MemOperand(a0, OFFSET_OF(T, err1_in))); \ 1204 __ ctc1(zero_reg, FCSR); \ 1205 __ x##_w_d(f0, f0); \ 1206 __ cfc1(a2, FCSR); \ 1207 __ sw(a2, MemOperand(a0, OFFSET_OF(T, x##_err1_out))); \ 1208 \ 1209 __ ldc1(f0, MemOperand(a0, OFFSET_OF(T, err2_in))); \ 1210 __ ctc1(zero_reg, FCSR); \ 1211 __ x##_w_d(f0, f0); \ 1212 __ cfc1(a2, FCSR); \ 1213 __ sw(a2, MemOperand(a0, OFFSET_OF(T, x##_err2_out))); \ 1214 \ 1215 __ ldc1(f0, MemOperand(a0, OFFSET_OF(T, err3_in))); \ 1216 __ ctc1(zero_reg, FCSR); \ 1217 __ x##_w_d(f0, f0); \ 1218 __ cfc1(a2, FCSR); \ 1219 __ sw(a2, MemOperand(a0, OFFSET_OF(T, x##_err3_out))); \ 1220 \ 1221 __ ldc1(f0, MemOperand(a0, OFFSET_OF(T, err4_in))); \ 1222 __ ctc1(zero_reg, FCSR); \ 1223 __ x##_w_d(f0, f0); \ 1224 __ cfc1(a2, FCSR); \ 1225 __ sw(a2, MemOperand(a0, OFFSET_OF(T, x##_err4_out))); \ 1226 __ swc1(f0, MemOperand(a0, OFFSET_OF(T, x##_invalid_result))); 1227 1228 RUN_ROUND_TEST(round) 1229 RUN_ROUND_TEST(floor) 1230 RUN_ROUND_TEST(ceil) 1231 RUN_ROUND_TEST(trunc) 1232 RUN_ROUND_TEST(cvt) 1233 1234 // Restore FCSR. 1235 __ ctc1(a1, FCSR); 1236 1237 __ jr(ra); 1238 __ nop(); 1239 1240 CodeDesc desc; 1241 assm.GetCode(&desc); 1242 Handle<Code> code = isolate->factory()->NewCode( 1243 desc, Code::ComputeFlags(Code::STUB), Handle<Code>()); 1244 F3 f = FUNCTION_CAST<F3>(code->entry()); 1245 1246 t.round_up_in = 123.51; 1247 t.round_down_in = 123.49; 1248 t.neg_round_up_in = -123.5; 1249 t.neg_round_down_in = -123.49; 1250 t.err1_in = 123.51; 1251 t.err2_in = 1; 1252 t.err3_in = static_cast<double>(1) + 0xFFFFFFFF; 1253 t.err4_in = NAN; 1254 1255 Object* dummy = CALL_GENERATED_CODE(f, &t, 0, 0, 0, 0); 1256 USE(dummy); 1257 1258 #define GET_FPU_ERR(x) (static_cast<int>(x & kFCSRFlagMask)) 1259 #define CHECK_ROUND_RESULT(type) \ 1260 CHECK(GET_FPU_ERR(t.type##_err1_out) & kFCSRInexactFlagMask); \ 1261 CHECK_EQ(0, GET_FPU_ERR(t.type##_err2_out)); \ 1262 CHECK(GET_FPU_ERR(t.type##_err3_out) & kFCSRInvalidOpFlagMask); \ 1263 CHECK(GET_FPU_ERR(t.type##_err4_out) & kFCSRInvalidOpFlagMask); \ 1264 CHECK_EQ(static_cast<int32_t>(kFPUInvalidResult), t.type##_invalid_result); 1265 1266 CHECK_ROUND_RESULT(round); 1267 CHECK_ROUND_RESULT(floor); 1268 CHECK_ROUND_RESULT(ceil); 1269 CHECK_ROUND_RESULT(cvt); 1270 } 1271 1272 1273 TEST(MIPS15) { 1274 // Test chaining of label usages within instructions (issue 1644). 1275 CcTest::InitializeVM(); 1276 Isolate* isolate = CcTest::i_isolate(); 1277 HandleScope scope(isolate); 1278 Assembler assm(isolate, NULL, 0); 1279 1280 Label target; 1281 __ beq(v0, v1, &target); 1282 __ nop(); 1283 __ bne(v0, v1, &target); 1284 __ nop(); 1285 __ bind(&target); 1286 __ nop(); 1287 } 1288 1289 1290 // ----- mips64 tests ----------------------------------------------- 1291 1292 TEST(MIPS16) { 1293 // Test 64-bit memory loads and stores. 1294 CcTest::InitializeVM(); 1295 Isolate* isolate = CcTest::i_isolate(); 1296 HandleScope scope(isolate); 1297 1298 typedef struct { 1299 int64_t r1; 1300 int64_t r2; 1301 int64_t r3; 1302 int64_t r4; 1303 int64_t r5; 1304 int64_t r6; 1305 uint32_t ui; 1306 int32_t si; 1307 } T; 1308 T t; 1309 1310 Assembler assm(isolate, NULL, 0); 1311 Label L, C; 1312 1313 // Basic 32-bit word load/store, with un-signed data. 1314 __ lw(a4, MemOperand(a0, OFFSET_OF(T, ui))); 1315 __ sw(a4, MemOperand(a0, OFFSET_OF(T, r1))); 1316 1317 // Check that the data got zero-extended into 64-bit a4. 1318 __ sd(a4, MemOperand(a0, OFFSET_OF(T, r2))); 1319 1320 // Basic 32-bit word load/store, with SIGNED data. 1321 __ lw(a5, MemOperand(a0, OFFSET_OF(T, si))); 1322 __ sw(a5, MemOperand(a0, OFFSET_OF(T, r3))); 1323 1324 // Check that the data got sign-extended into 64-bit a4. 1325 __ sd(a5, MemOperand(a0, OFFSET_OF(T, r4))); 1326 1327 // 32-bit UNSIGNED word load/store, with SIGNED data. 1328 __ lwu(a6, MemOperand(a0, OFFSET_OF(T, si))); 1329 __ sw(a6, MemOperand(a0, OFFSET_OF(T, r5))); 1330 1331 // Check that the data got zero-extended into 64-bit a4. 1332 __ sd(a6, MemOperand(a0, OFFSET_OF(T, r6))); 1333 1334 // lh with positive data. 1335 __ lh(a5, MemOperand(a0, OFFSET_OF(T, ui))); 1336 __ sw(a5, MemOperand(a0, OFFSET_OF(T, r2))); 1337 1338 // lh with negative data. 1339 __ lh(a6, MemOperand(a0, OFFSET_OF(T, si))); 1340 __ sw(a6, MemOperand(a0, OFFSET_OF(T, r3))); 1341 1342 // lhu with negative data. 1343 __ lhu(a7, MemOperand(a0, OFFSET_OF(T, si))); 1344 __ sw(a7, MemOperand(a0, OFFSET_OF(T, r4))); 1345 1346 // lb with negative data. 1347 __ lb(t0, MemOperand(a0, OFFSET_OF(T, si))); 1348 __ sw(t0, MemOperand(a0, OFFSET_OF(T, r5))); 1349 1350 // // sh writes only 1/2 of word. 1351 __ lui(t1, 0x3333); 1352 __ ori(t1, t1, 0x3333); 1353 __ sw(t1, MemOperand(a0, OFFSET_OF(T, r6))); 1354 __ lhu(t1, MemOperand(a0, OFFSET_OF(T, si))); 1355 __ sh(t1, MemOperand(a0, OFFSET_OF(T, r6))); 1356 1357 __ jr(ra); 1358 __ nop(); 1359 1360 CodeDesc desc; 1361 assm.GetCode(&desc); 1362 Handle<Code> code = isolate->factory()->NewCode( 1363 desc, Code::ComputeFlags(Code::STUB), Handle<Code>()); 1364 F3 f = FUNCTION_CAST<F3>(code->entry()); 1365 t.ui = 0x44332211; 1366 t.si = 0x99aabbcc; 1367 t.r1 = 0x1111111111111111; 1368 t.r2 = 0x2222222222222222; 1369 t.r3 = 0x3333333333333333; 1370 t.r4 = 0x4444444444444444; 1371 t.r5 = 0x5555555555555555; 1372 t.r6 = 0x6666666666666666; 1373 Object* dummy = CALL_GENERATED_CODE(f, &t, 0, 0, 0, 0); 1374 USE(dummy); 1375 1376 // Unsigned data, 32 & 64. 1377 CHECK_EQ(0x1111111144332211L, t.r1); 1378 CHECK_EQ(0x0000000000002211L, t.r2); 1379 1380 // Signed data, 32 & 64. 1381 CHECK_EQ(0x33333333ffffbbccL, t.r3); 1382 CHECK_EQ(0xffffffff0000bbccL, t.r4); 1383 1384 // Signed data, 32 & 64. 1385 CHECK_EQ(0x55555555ffffffccL, t.r5); 1386 CHECK_EQ(0x000000003333bbccL, t.r6); 1387 } 1388 1389 #undef __ 1390
