Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame^] | 1 | // Copyright 2009 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 <stdlib.h> |
| 29 | |
| 30 | #include "v8.h" |
| 31 | |
| 32 | #include "macro-assembler.h" |
| 33 | #include "factory.h" |
| 34 | #include "platform.h" |
| 35 | #include "serialize.h" |
| 36 | #include "cctest.h" |
| 37 | |
| 38 | using v8::internal::byte; |
| 39 | using v8::internal::OS; |
| 40 | using v8::internal::Assembler; |
| 41 | using v8::internal::Condition; |
| 42 | using v8::internal::MacroAssembler; |
| 43 | using v8::internal::HandleScope; |
| 44 | using v8::internal::Operand; |
| 45 | using v8::internal::Immediate; |
| 46 | using v8::internal::SmiIndex; |
| 47 | using v8::internal::Label; |
| 48 | using v8::internal::RelocInfo; |
| 49 | using v8::internal::rax; |
| 50 | using v8::internal::rbx; |
| 51 | using v8::internal::rsi; |
| 52 | using v8::internal::rdi; |
| 53 | using v8::internal::rcx; |
| 54 | using v8::internal::rdx; |
| 55 | using v8::internal::rbp; |
| 56 | using v8::internal::rsp; |
| 57 | using v8::internal::r8; |
| 58 | using v8::internal::r9; |
| 59 | using v8::internal::r11; |
| 60 | using v8::internal::r12; |
| 61 | using v8::internal::r13; |
| 62 | using v8::internal::r14; |
| 63 | using v8::internal::r15; |
| 64 | using v8::internal::FUNCTION_CAST; |
| 65 | using v8::internal::CodeDesc; |
| 66 | using v8::internal::less_equal; |
| 67 | using v8::internal::not_equal; |
| 68 | using v8::internal::not_zero; |
| 69 | using v8::internal::greater; |
| 70 | using v8::internal::greater_equal; |
| 71 | using v8::internal::carry; |
| 72 | using v8::internal::not_carry; |
| 73 | using v8::internal::negative; |
| 74 | using v8::internal::positive; |
| 75 | using v8::internal::Smi; |
| 76 | using v8::internal::kSmiTagMask; |
| 77 | using v8::internal::kSmiValueSize; |
| 78 | |
| 79 | // Test the x64 assembler by compiling some simple functions into |
| 80 | // a buffer and executing them. These tests do not initialize the |
| 81 | // V8 library, create a context, or use any V8 objects. |
| 82 | // The AMD64 calling convention is used, with the first five arguments |
| 83 | // in RSI, RDI, RDX, RCX, R8, and R9, and floating point arguments in |
| 84 | // the XMM registers. The return value is in RAX. |
| 85 | // This calling convention is used on Linux, with GCC, and on Mac OS, |
| 86 | // with GCC. A different convention is used on 64-bit windows. |
| 87 | |
| 88 | typedef int (*F0)(); |
| 89 | |
| 90 | #define __ masm-> |
| 91 | |
| 92 | TEST(Smi) { |
| 93 | // Check that C++ Smi operations work as expected. |
| 94 | intptr_t test_numbers[] = { |
| 95 | 0, 1, -1, 127, 128, -128, -129, 255, 256, -256, -257, |
| 96 | Smi::kMaxValue, static_cast<intptr_t>(Smi::kMaxValue) + 1, |
| 97 | Smi::kMinValue, static_cast<intptr_t>(Smi::kMinValue) - 1 |
| 98 | }; |
| 99 | int test_number_count = 15; |
| 100 | for (int i = 0; i < test_number_count; i++) { |
| 101 | intptr_t number = test_numbers[i]; |
| 102 | bool is_valid = Smi::IsValid(number); |
| 103 | bool is_in_range = number >= Smi::kMinValue && number <= Smi::kMaxValue; |
| 104 | CHECK_EQ(is_in_range, is_valid); |
| 105 | if (is_valid) { |
| 106 | Smi* smi_from_intptr = Smi::FromIntptr(number); |
| 107 | if (static_cast<int>(number) == number) { // Is a 32-bit int. |
| 108 | Smi* smi_from_int = Smi::FromInt(static_cast<int32_t>(number)); |
| 109 | CHECK_EQ(smi_from_int, smi_from_intptr); |
| 110 | } |
| 111 | int smi_value = smi_from_intptr->value(); |
| 112 | CHECK_EQ(number, static_cast<intptr_t>(smi_value)); |
| 113 | } |
| 114 | } |
| 115 | } |
| 116 | |
| 117 | |
| 118 | static void TestMoveSmi(MacroAssembler* masm, Label* exit, int id, Smi* value) { |
| 119 | __ movl(rax, Immediate(id)); |
| 120 | __ Move(rcx, Smi::FromInt(0)); |
| 121 | __ Set(rdx, reinterpret_cast<intptr_t>(Smi::FromInt(0))); |
| 122 | __ cmpq(rcx, rdx); |
| 123 | __ j(not_equal, exit); |
| 124 | } |
| 125 | |
| 126 | |
| 127 | // Test that we can move a Smi value literally into a register. |
| 128 | TEST(SmiMove) { |
| 129 | // Allocate an executable page of memory. |
| 130 | size_t actual_size; |
| 131 | byte* buffer = static_cast<byte*>(OS::Allocate(Assembler::kMinimalBufferSize, |
| 132 | &actual_size, |
| 133 | true)); |
| 134 | CHECK(buffer); |
| 135 | HandleScope handles; |
| 136 | MacroAssembler assembler(buffer, actual_size); |
| 137 | MacroAssembler* masm = &assembler; // Create a pointer for the __ macro. |
| 138 | masm->set_allow_stub_calls(false); |
| 139 | Label exit; |
| 140 | |
| 141 | TestMoveSmi(masm, &exit, 1, Smi::FromInt(0)); |
| 142 | TestMoveSmi(masm, &exit, 2, Smi::FromInt(127)); |
| 143 | TestMoveSmi(masm, &exit, 3, Smi::FromInt(128)); |
| 144 | TestMoveSmi(masm, &exit, 4, Smi::FromInt(255)); |
| 145 | TestMoveSmi(masm, &exit, 5, Smi::FromInt(256)); |
| 146 | TestMoveSmi(masm, &exit, 6, Smi::FromInt(Smi::kMaxValue)); |
| 147 | TestMoveSmi(masm, &exit, 7, Smi::FromInt(-1)); |
| 148 | TestMoveSmi(masm, &exit, 8, Smi::FromInt(-128)); |
| 149 | TestMoveSmi(masm, &exit, 9, Smi::FromInt(-129)); |
| 150 | TestMoveSmi(masm, &exit, 10, Smi::FromInt(-256)); |
| 151 | TestMoveSmi(masm, &exit, 11, Smi::FromInt(-257)); |
| 152 | TestMoveSmi(masm, &exit, 12, Smi::FromInt(Smi::kMinValue)); |
| 153 | |
| 154 | __ xor_(rax, rax); // Success. |
| 155 | __ bind(&exit); |
| 156 | __ ret(0); |
| 157 | |
| 158 | CodeDesc desc; |
| 159 | masm->GetCode(&desc); |
| 160 | // Call the function from C++. |
| 161 | int result = FUNCTION_CAST<F0>(buffer)(); |
| 162 | CHECK_EQ(0, result); |
| 163 | } |
| 164 | |
| 165 | |
| 166 | void TestSmiCompare(MacroAssembler* masm, Label* exit, int id, int x, int y) { |
| 167 | __ Move(rcx, Smi::FromInt(x)); |
| 168 | __ movq(r8, rcx); |
| 169 | __ Move(rdx, Smi::FromInt(y)); |
| 170 | __ movq(r9, rdx); |
| 171 | __ SmiCompare(rcx, rdx); |
| 172 | if (x < y) { |
| 173 | __ movl(rax, Immediate(id + 1)); |
| 174 | __ j(greater_equal, exit); |
| 175 | } else if (x > y) { |
| 176 | __ movl(rax, Immediate(id + 2)); |
| 177 | __ j(less_equal, exit); |
| 178 | } else { |
| 179 | ASSERT_EQ(x, y); |
| 180 | __ movl(rax, Immediate(id + 3)); |
| 181 | __ j(not_equal, exit); |
| 182 | } |
| 183 | __ movl(rax, Immediate(id + 4)); |
| 184 | __ cmpq(rcx, r8); |
| 185 | __ j(not_equal, exit); |
| 186 | __ incq(rax); |
| 187 | __ cmpq(rdx, r9); |
| 188 | __ j(not_equal, exit); |
| 189 | |
| 190 | if (x != y) { |
| 191 | __ SmiCompare(rdx, rcx); |
| 192 | if (y < x) { |
| 193 | __ movl(rax, Immediate(id + 9)); |
| 194 | __ j(greater_equal, exit); |
| 195 | } else { |
| 196 | ASSERT(y > x); |
| 197 | __ movl(rax, Immediate(id + 10)); |
| 198 | __ j(less_equal, exit); |
| 199 | } |
| 200 | } else { |
| 201 | __ SmiCompare(rcx, rcx); |
| 202 | __ movl(rax, Immediate(id + 11)); |
| 203 | __ j(not_equal, exit); |
| 204 | __ incq(rax); |
| 205 | __ cmpq(rcx, r8); |
| 206 | __ j(not_equal, exit); |
| 207 | } |
| 208 | } |
| 209 | |
| 210 | |
| 211 | // Test that we can compare smis for equality (and more). |
| 212 | TEST(SmiCompare) { |
| 213 | // Allocate an executable page of memory. |
| 214 | size_t actual_size; |
| 215 | byte* buffer = |
| 216 | static_cast<byte*>(OS::Allocate(Assembler::kMinimalBufferSize, |
| 217 | &actual_size, |
| 218 | true)); |
| 219 | CHECK(buffer); |
| 220 | HandleScope handles; |
| 221 | MacroAssembler assembler(buffer, actual_size); |
| 222 | |
| 223 | MacroAssembler* masm = &assembler; |
| 224 | masm->set_allow_stub_calls(false); |
| 225 | Label exit; |
| 226 | |
| 227 | TestSmiCompare(masm, &exit, 0x10, 0, 0); |
| 228 | TestSmiCompare(masm, &exit, 0x20, 0, 1); |
| 229 | TestSmiCompare(masm, &exit, 0x30, 1, 0); |
| 230 | TestSmiCompare(masm, &exit, 0x40, 1, 1); |
| 231 | TestSmiCompare(masm, &exit, 0x50, 0, -1); |
| 232 | TestSmiCompare(masm, &exit, 0x60, -1, 0); |
| 233 | TestSmiCompare(masm, &exit, 0x70, -1, -1); |
| 234 | TestSmiCompare(masm, &exit, 0x80, 0, Smi::kMinValue); |
| 235 | TestSmiCompare(masm, &exit, 0x90, Smi::kMinValue, 0); |
| 236 | TestSmiCompare(masm, &exit, 0xA0, 0, Smi::kMaxValue); |
| 237 | TestSmiCompare(masm, &exit, 0xB0, Smi::kMaxValue, 0); |
| 238 | TestSmiCompare(masm, &exit, 0xC0, -1, Smi::kMinValue); |
| 239 | TestSmiCompare(masm, &exit, 0xD0, Smi::kMinValue, -1); |
| 240 | TestSmiCompare(masm, &exit, 0xE0, -1, Smi::kMaxValue); |
| 241 | TestSmiCompare(masm, &exit, 0xF0, Smi::kMaxValue, -1); |
| 242 | TestSmiCompare(masm, &exit, 0x100, Smi::kMinValue, Smi::kMinValue); |
| 243 | TestSmiCompare(masm, &exit, 0x110, Smi::kMinValue, Smi::kMaxValue); |
| 244 | TestSmiCompare(masm, &exit, 0x120, Smi::kMaxValue, Smi::kMinValue); |
| 245 | TestSmiCompare(masm, &exit, 0x130, Smi::kMaxValue, Smi::kMaxValue); |
| 246 | |
| 247 | __ xor_(rax, rax); // Success. |
| 248 | __ bind(&exit); |
| 249 | __ ret(0); |
| 250 | |
| 251 | CodeDesc desc; |
| 252 | masm->GetCode(&desc); |
| 253 | // Call the function from C++. |
| 254 | int result = FUNCTION_CAST<F0>(buffer)(); |
| 255 | CHECK_EQ(0, result); |
| 256 | } |
| 257 | |
| 258 | |
| 259 | |
| 260 | TEST(Integer32ToSmi) { |
| 261 | // Allocate an executable page of memory. |
| 262 | size_t actual_size; |
| 263 | byte* buffer = static_cast<byte*>(OS::Allocate(Assembler::kMinimalBufferSize, |
| 264 | &actual_size, |
| 265 | true)); |
| 266 | CHECK(buffer); |
| 267 | HandleScope handles; |
| 268 | MacroAssembler assembler(buffer, actual_size); |
| 269 | |
| 270 | MacroAssembler* masm = &assembler; |
| 271 | masm->set_allow_stub_calls(false); |
| 272 | Label exit; |
| 273 | |
| 274 | __ movq(rax, Immediate(1)); // Test number. |
| 275 | __ movl(rcx, Immediate(0)); |
| 276 | __ Integer32ToSmi(rcx, rcx); |
| 277 | __ Set(rdx, reinterpret_cast<intptr_t>(Smi::FromInt(0))); |
| 278 | __ SmiCompare(rcx, rdx); |
| 279 | __ j(not_equal, &exit); |
| 280 | |
| 281 | __ movq(rax, Immediate(2)); // Test number. |
| 282 | __ movl(rcx, Immediate(1024)); |
| 283 | __ Integer32ToSmi(rcx, rcx); |
| 284 | __ Set(rdx, reinterpret_cast<intptr_t>(Smi::FromInt(1024))); |
| 285 | __ SmiCompare(rcx, rdx); |
| 286 | __ j(not_equal, &exit); |
| 287 | |
| 288 | __ movq(rax, Immediate(3)); // Test number. |
| 289 | __ movl(rcx, Immediate(-1)); |
| 290 | __ Integer32ToSmi(rcx, rcx); |
| 291 | __ Set(rdx, reinterpret_cast<intptr_t>(Smi::FromInt(-1))); |
| 292 | __ SmiCompare(rcx, rdx); |
| 293 | __ j(not_equal, &exit); |
| 294 | |
| 295 | __ movq(rax, Immediate(4)); // Test number. |
| 296 | __ movl(rcx, Immediate(Smi::kMaxValue)); |
| 297 | __ Integer32ToSmi(rcx, rcx); |
| 298 | __ Set(rdx, reinterpret_cast<intptr_t>(Smi::FromInt(Smi::kMaxValue))); |
| 299 | __ SmiCompare(rcx, rdx); |
| 300 | __ j(not_equal, &exit); |
| 301 | |
| 302 | __ movq(rax, Immediate(5)); // Test number. |
| 303 | __ movl(rcx, Immediate(Smi::kMinValue)); |
| 304 | __ Integer32ToSmi(rcx, rcx); |
| 305 | __ Set(rdx, reinterpret_cast<intptr_t>(Smi::FromInt(Smi::kMinValue))); |
| 306 | __ SmiCompare(rcx, rdx); |
| 307 | __ j(not_equal, &exit); |
| 308 | |
| 309 | // Different target register. |
| 310 | |
| 311 | __ movq(rax, Immediate(6)); // Test number. |
| 312 | __ movl(rcx, Immediate(0)); |
| 313 | __ Integer32ToSmi(r8, rcx); |
| 314 | __ Set(rdx, reinterpret_cast<intptr_t>(Smi::FromInt(0))); |
| 315 | __ SmiCompare(r8, rdx); |
| 316 | __ j(not_equal, &exit); |
| 317 | |
| 318 | __ movq(rax, Immediate(7)); // Test number. |
| 319 | __ movl(rcx, Immediate(1024)); |
| 320 | __ Integer32ToSmi(r8, rcx); |
| 321 | __ Set(rdx, reinterpret_cast<intptr_t>(Smi::FromInt(1024))); |
| 322 | __ SmiCompare(r8, rdx); |
| 323 | __ j(not_equal, &exit); |
| 324 | |
| 325 | __ movq(rax, Immediate(8)); // Test number. |
| 326 | __ movl(rcx, Immediate(-1)); |
| 327 | __ Integer32ToSmi(r8, rcx); |
| 328 | __ Set(rdx, reinterpret_cast<intptr_t>(Smi::FromInt(-1))); |
| 329 | __ SmiCompare(r8, rdx); |
| 330 | __ j(not_equal, &exit); |
| 331 | |
| 332 | __ movq(rax, Immediate(9)); // Test number. |
| 333 | __ movl(rcx, Immediate(Smi::kMaxValue)); |
| 334 | __ Integer32ToSmi(r8, rcx); |
| 335 | __ Set(rdx, reinterpret_cast<intptr_t>(Smi::FromInt(Smi::kMaxValue))); |
| 336 | __ SmiCompare(r8, rdx); |
| 337 | __ j(not_equal, &exit); |
| 338 | |
| 339 | __ movq(rax, Immediate(10)); // Test number. |
| 340 | __ movl(rcx, Immediate(Smi::kMinValue)); |
| 341 | __ Integer32ToSmi(r8, rcx); |
| 342 | __ Set(rdx, reinterpret_cast<intptr_t>(Smi::FromInt(Smi::kMinValue))); |
| 343 | __ SmiCompare(r8, rdx); |
| 344 | __ j(not_equal, &exit); |
| 345 | |
| 346 | |
| 347 | __ xor_(rax, rax); // Success. |
| 348 | __ bind(&exit); |
| 349 | __ ret(0); |
| 350 | |
| 351 | CodeDesc desc; |
| 352 | masm->GetCode(&desc); |
| 353 | // Call the function from C++. |
| 354 | int result = FUNCTION_CAST<F0>(buffer)(); |
| 355 | CHECK_EQ(0, result); |
| 356 | } |
| 357 | |
| 358 | |
| 359 | void TestI64PlusConstantToSmi(MacroAssembler* masm, |
| 360 | Label* exit, |
| 361 | int id, |
| 362 | int64_t x, |
| 363 | int y) { |
| 364 | int64_t result = x + y; |
| 365 | ASSERT(Smi::IsValid(result)); |
| 366 | __ movl(rax, Immediate(id)); |
| 367 | __ Move(r8, Smi::FromInt(result)); |
| 368 | __ movq(rcx, x, RelocInfo::NONE); |
| 369 | __ movq(r11, rcx); |
| 370 | __ Integer64PlusConstantToSmi(rdx, rcx, y); |
| 371 | __ SmiCompare(rdx, r8); |
| 372 | __ j(not_equal, exit); |
| 373 | |
| 374 | __ incq(rax); |
| 375 | __ SmiCompare(r11, rcx); |
| 376 | __ j(not_equal, exit); |
| 377 | |
| 378 | __ incq(rax); |
| 379 | __ Integer64PlusConstantToSmi(rcx, rcx, y); |
| 380 | __ SmiCompare(rcx, r8); |
| 381 | __ j(not_equal, exit); |
| 382 | } |
| 383 | |
| 384 | |
| 385 | TEST(Integer64PlusConstantToSmi) { |
| 386 | // Allocate an executable page of memory. |
| 387 | size_t actual_size; |
| 388 | byte* buffer = static_cast<byte*>(OS::Allocate(Assembler::kMinimalBufferSize, |
| 389 | &actual_size, |
| 390 | true)); |
| 391 | CHECK(buffer); |
| 392 | HandleScope handles; |
| 393 | MacroAssembler assembler(buffer, actual_size); |
| 394 | |
| 395 | MacroAssembler* masm = &assembler; |
| 396 | masm->set_allow_stub_calls(false); |
| 397 | Label exit; |
| 398 | |
| 399 | int64_t twice_max = static_cast<int64_t>(Smi::kMaxValue) * 2; |
| 400 | |
| 401 | TestI64PlusConstantToSmi(masm, &exit, 0x10, 0, 0); |
| 402 | TestI64PlusConstantToSmi(masm, &exit, 0x20, 0, 1); |
| 403 | TestI64PlusConstantToSmi(masm, &exit, 0x30, 1, 0); |
| 404 | TestI64PlusConstantToSmi(masm, &exit, 0x40, Smi::kMaxValue - 5, 5); |
| 405 | TestI64PlusConstantToSmi(masm, &exit, 0x50, Smi::kMinValue + 5, 5); |
| 406 | TestI64PlusConstantToSmi(masm, &exit, 0x60, twice_max, -Smi::kMaxValue); |
| 407 | TestI64PlusConstantToSmi(masm, &exit, 0x70, -twice_max, Smi::kMaxValue); |
| 408 | TestI64PlusConstantToSmi(masm, &exit, 0x80, 0, Smi::kMinValue); |
| 409 | TestI64PlusConstantToSmi(masm, &exit, 0x90, 0, Smi::kMaxValue); |
| 410 | TestI64PlusConstantToSmi(masm, &exit, 0xA0, Smi::kMinValue, 0); |
| 411 | TestI64PlusConstantToSmi(masm, &exit, 0xB0, Smi::kMaxValue, 0); |
| 412 | TestI64PlusConstantToSmi(masm, &exit, 0xC0, twice_max, Smi::kMinValue); |
| 413 | |
| 414 | __ xor_(rax, rax); // Success. |
| 415 | __ bind(&exit); |
| 416 | __ ret(0); |
| 417 | |
| 418 | CodeDesc desc; |
| 419 | masm->GetCode(&desc); |
| 420 | // Call the function from C++. |
| 421 | int result = FUNCTION_CAST<F0>(buffer)(); |
| 422 | CHECK_EQ(0, result); |
| 423 | } |
| 424 | |
| 425 | |
| 426 | TEST(SmiCheck) { |
| 427 | // Allocate an executable page of memory. |
| 428 | size_t actual_size; |
| 429 | byte* buffer = static_cast<byte*>(OS::Allocate(Assembler::kMinimalBufferSize, |
| 430 | &actual_size, |
| 431 | true)); |
| 432 | CHECK(buffer); |
| 433 | HandleScope handles; |
| 434 | MacroAssembler assembler(buffer, actual_size); |
| 435 | |
| 436 | MacroAssembler* masm = &assembler; |
| 437 | masm->set_allow_stub_calls(false); |
| 438 | Label exit; |
| 439 | Condition cond; |
| 440 | |
| 441 | __ movl(rax, Immediate(1)); // Test number. |
| 442 | |
| 443 | // CheckSmi |
| 444 | |
| 445 | __ movl(rcx, Immediate(0)); |
| 446 | __ Integer32ToSmi(rcx, rcx); |
| 447 | cond = masm->CheckSmi(rcx); |
| 448 | __ j(NegateCondition(cond), &exit); |
| 449 | |
| 450 | __ incq(rax); |
| 451 | __ xor_(rcx, Immediate(kSmiTagMask)); |
| 452 | cond = masm->CheckSmi(rcx); |
| 453 | __ j(cond, &exit); |
| 454 | |
| 455 | __ incq(rax); |
| 456 | __ movl(rcx, Immediate(-1)); |
| 457 | __ Integer32ToSmi(rcx, rcx); |
| 458 | cond = masm->CheckSmi(rcx); |
| 459 | __ j(NegateCondition(cond), &exit); |
| 460 | |
| 461 | __ incq(rax); |
| 462 | __ xor_(rcx, Immediate(kSmiTagMask)); |
| 463 | cond = masm->CheckSmi(rcx); |
| 464 | __ j(cond, &exit); |
| 465 | |
| 466 | __ incq(rax); |
| 467 | __ movl(rcx, Immediate(Smi::kMaxValue)); |
| 468 | __ Integer32ToSmi(rcx, rcx); |
| 469 | cond = masm->CheckSmi(rcx); |
| 470 | __ j(NegateCondition(cond), &exit); |
| 471 | |
| 472 | __ incq(rax); |
| 473 | __ xor_(rcx, Immediate(kSmiTagMask)); |
| 474 | cond = masm->CheckSmi(rcx); |
| 475 | __ j(cond, &exit); |
| 476 | |
| 477 | __ incq(rax); |
| 478 | __ movl(rcx, Immediate(Smi::kMinValue)); |
| 479 | __ Integer32ToSmi(rcx, rcx); |
| 480 | cond = masm->CheckSmi(rcx); |
| 481 | __ j(NegateCondition(cond), &exit); |
| 482 | |
| 483 | __ incq(rax); |
| 484 | __ xor_(rcx, Immediate(kSmiTagMask)); |
| 485 | cond = masm->CheckSmi(rcx); |
| 486 | __ j(cond, &exit); |
| 487 | |
| 488 | // CheckPositiveSmi |
| 489 | |
| 490 | __ incq(rax); |
| 491 | __ movl(rcx, Immediate(0)); |
| 492 | __ Integer32ToSmi(rcx, rcx); |
| 493 | cond = masm->CheckPositiveSmi(rcx); // Zero counts as positive. |
| 494 | __ j(NegateCondition(cond), &exit); |
| 495 | |
| 496 | __ incq(rax); |
| 497 | __ xor_(rcx, Immediate(kSmiTagMask)); |
| 498 | cond = masm->CheckPositiveSmi(rcx); // "zero" non-smi. |
| 499 | __ j(cond, &exit); |
| 500 | |
| 501 | __ incq(rax); |
| 502 | __ movq(rcx, Immediate(-1)); |
| 503 | __ Integer32ToSmi(rcx, rcx); |
| 504 | cond = masm->CheckPositiveSmi(rcx); // Negative smis are not positive. |
| 505 | __ j(cond, &exit); |
| 506 | |
| 507 | __ incq(rax); |
| 508 | __ movq(rcx, Immediate(Smi::kMinValue)); |
| 509 | __ Integer32ToSmi(rcx, rcx); |
| 510 | cond = masm->CheckPositiveSmi(rcx); // Most negative smi is not positive. |
| 511 | __ j(cond, &exit); |
| 512 | |
| 513 | __ incq(rax); |
| 514 | __ xor_(rcx, Immediate(kSmiTagMask)); |
| 515 | cond = masm->CheckPositiveSmi(rcx); // "Negative" non-smi. |
| 516 | __ j(cond, &exit); |
| 517 | |
| 518 | __ incq(rax); |
| 519 | __ movq(rcx, Immediate(Smi::kMaxValue)); |
| 520 | __ Integer32ToSmi(rcx, rcx); |
| 521 | cond = masm->CheckPositiveSmi(rcx); // Most positive smi is positive. |
| 522 | __ j(NegateCondition(cond), &exit); |
| 523 | |
| 524 | __ incq(rax); |
| 525 | __ xor_(rcx, Immediate(kSmiTagMask)); |
| 526 | cond = masm->CheckPositiveSmi(rcx); // "Positive" non-smi. |
| 527 | __ j(cond, &exit); |
| 528 | |
| 529 | // CheckIsMinSmi |
| 530 | |
| 531 | __ incq(rax); |
| 532 | __ movq(rcx, Immediate(Smi::kMaxValue)); |
| 533 | __ Integer32ToSmi(rcx, rcx); |
| 534 | cond = masm->CheckIsMinSmi(rcx); |
| 535 | __ j(cond, &exit); |
| 536 | |
| 537 | __ incq(rax); |
| 538 | __ movq(rcx, Immediate(0)); |
| 539 | __ Integer32ToSmi(rcx, rcx); |
| 540 | cond = masm->CheckIsMinSmi(rcx); |
| 541 | __ j(cond, &exit); |
| 542 | |
| 543 | __ incq(rax); |
| 544 | __ movq(rcx, Immediate(Smi::kMinValue)); |
| 545 | __ Integer32ToSmi(rcx, rcx); |
| 546 | cond = masm->CheckIsMinSmi(rcx); |
| 547 | __ j(NegateCondition(cond), &exit); |
| 548 | |
| 549 | __ incq(rax); |
| 550 | __ movq(rcx, Immediate(Smi::kMinValue + 1)); |
| 551 | __ Integer32ToSmi(rcx, rcx); |
| 552 | cond = masm->CheckIsMinSmi(rcx); |
| 553 | __ j(cond, &exit); |
| 554 | |
| 555 | // CheckBothSmi |
| 556 | |
| 557 | __ incq(rax); |
| 558 | __ movq(rcx, Immediate(Smi::kMaxValue)); |
| 559 | __ Integer32ToSmi(rcx, rcx); |
| 560 | __ movq(rdx, Immediate(Smi::kMinValue)); |
| 561 | __ Integer32ToSmi(rdx, rdx); |
| 562 | cond = masm->CheckBothSmi(rcx, rdx); |
| 563 | __ j(NegateCondition(cond), &exit); |
| 564 | |
| 565 | __ incq(rax); |
| 566 | __ xor_(rcx, Immediate(kSmiTagMask)); |
| 567 | cond = masm->CheckBothSmi(rcx, rdx); |
| 568 | __ j(cond, &exit); |
| 569 | |
| 570 | __ incq(rax); |
| 571 | __ xor_(rdx, Immediate(kSmiTagMask)); |
| 572 | cond = masm->CheckBothSmi(rcx, rdx); |
| 573 | __ j(cond, &exit); |
| 574 | |
| 575 | __ incq(rax); |
| 576 | __ xor_(rcx, Immediate(kSmiTagMask)); |
| 577 | cond = masm->CheckBothSmi(rcx, rdx); |
| 578 | __ j(cond, &exit); |
| 579 | |
| 580 | __ incq(rax); |
| 581 | cond = masm->CheckBothSmi(rcx, rcx); |
| 582 | __ j(NegateCondition(cond), &exit); |
| 583 | |
| 584 | __ incq(rax); |
| 585 | cond = masm->CheckBothSmi(rdx, rdx); |
| 586 | __ j(cond, &exit); |
| 587 | |
| 588 | // CheckInteger32ValidSmiValue |
| 589 | __ incq(rax); |
| 590 | __ movq(rcx, Immediate(0)); |
| 591 | cond = masm->CheckInteger32ValidSmiValue(rax); |
| 592 | __ j(NegateCondition(cond), &exit); |
| 593 | |
| 594 | __ incq(rax); |
| 595 | __ movq(rcx, Immediate(-1)); |
| 596 | cond = masm->CheckInteger32ValidSmiValue(rax); |
| 597 | __ j(NegateCondition(cond), &exit); |
| 598 | |
| 599 | __ incq(rax); |
| 600 | __ movq(rcx, Immediate(Smi::kMaxValue)); |
| 601 | cond = masm->CheckInteger32ValidSmiValue(rax); |
| 602 | __ j(NegateCondition(cond), &exit); |
| 603 | |
| 604 | __ incq(rax); |
| 605 | __ movq(rcx, Immediate(Smi::kMinValue)); |
| 606 | cond = masm->CheckInteger32ValidSmiValue(rax); |
| 607 | __ j(NegateCondition(cond), &exit); |
| 608 | |
| 609 | // Success |
| 610 | __ xor_(rax, rax); |
| 611 | |
| 612 | __ bind(&exit); |
| 613 | __ ret(0); |
| 614 | |
| 615 | CodeDesc desc; |
| 616 | masm->GetCode(&desc); |
| 617 | // Call the function from C++. |
| 618 | int result = FUNCTION_CAST<F0>(buffer)(); |
| 619 | CHECK_EQ(0, result); |
| 620 | } |
| 621 | |
| 622 | |
| 623 | |
| 624 | void TestSmiNeg(MacroAssembler* masm, Label* exit, int id, int x) { |
| 625 | __ Move(rcx, Smi::FromInt(x)); |
| 626 | __ movq(r11, rcx); |
| 627 | if (x == Smi::kMinValue || x == 0) { |
| 628 | // Negation fails. |
| 629 | __ movl(rax, Immediate(id + 8)); |
| 630 | __ SmiNeg(r9, rcx, exit); |
| 631 | |
| 632 | __ incq(rax); |
| 633 | __ SmiCompare(r11, rcx); |
| 634 | __ j(not_equal, exit); |
| 635 | |
| 636 | __ incq(rax); |
| 637 | __ SmiNeg(rcx, rcx, exit); |
| 638 | |
| 639 | __ incq(rax); |
| 640 | __ SmiCompare(r11, rcx); |
| 641 | __ j(not_equal, exit); |
| 642 | } else { |
| 643 | Label smi_ok, smi_ok2; |
| 644 | int result = -x; |
| 645 | __ movl(rax, Immediate(id)); |
| 646 | __ Move(r8, Smi::FromInt(result)); |
| 647 | |
| 648 | __ SmiNeg(r9, rcx, &smi_ok); |
| 649 | __ jmp(exit); |
| 650 | __ bind(&smi_ok); |
| 651 | __ incq(rax); |
| 652 | __ SmiCompare(r9, r8); |
| 653 | __ j(not_equal, exit); |
| 654 | |
| 655 | __ incq(rax); |
| 656 | __ SmiCompare(r11, rcx); |
| 657 | __ j(not_equal, exit); |
| 658 | |
| 659 | __ incq(rax); |
| 660 | __ SmiNeg(rcx, rcx, &smi_ok2); |
| 661 | __ jmp(exit); |
| 662 | __ bind(&smi_ok2); |
| 663 | __ incq(rax); |
| 664 | __ SmiCompare(rcx, r8); |
| 665 | __ j(not_equal, exit); |
| 666 | } |
| 667 | } |
| 668 | |
| 669 | |
| 670 | TEST(SmiNeg) { |
| 671 | // Allocate an executable page of memory. |
| 672 | size_t actual_size; |
| 673 | byte* buffer = |
| 674 | static_cast<byte*>(OS::Allocate(Assembler::kMinimalBufferSize, |
| 675 | &actual_size, |
| 676 | true)); |
| 677 | CHECK(buffer); |
| 678 | HandleScope handles; |
| 679 | MacroAssembler assembler(buffer, actual_size); |
| 680 | |
| 681 | MacroAssembler* masm = &assembler; |
| 682 | masm->set_allow_stub_calls(false); |
| 683 | Label exit; |
| 684 | |
| 685 | TestSmiNeg(masm, &exit, 0x10, 0); |
| 686 | TestSmiNeg(masm, &exit, 0x20, 1); |
| 687 | TestSmiNeg(masm, &exit, 0x30, -1); |
| 688 | TestSmiNeg(masm, &exit, 0x40, 127); |
| 689 | TestSmiNeg(masm, &exit, 0x50, 65535); |
| 690 | TestSmiNeg(masm, &exit, 0x60, Smi::kMinValue); |
| 691 | TestSmiNeg(masm, &exit, 0x70, Smi::kMaxValue); |
| 692 | TestSmiNeg(masm, &exit, 0x80, -Smi::kMaxValue); |
| 693 | |
| 694 | __ xor_(rax, rax); // Success. |
| 695 | __ bind(&exit); |
| 696 | __ ret(0); |
| 697 | |
| 698 | CodeDesc desc; |
| 699 | masm->GetCode(&desc); |
| 700 | // Call the function from C++. |
| 701 | int result = FUNCTION_CAST<F0>(buffer)(); |
| 702 | CHECK_EQ(0, result); |
| 703 | } |
| 704 | |
| 705 | |
| 706 | |
| 707 | |
| 708 | static void SmiAddTest(MacroAssembler* masm, |
| 709 | Label* exit, |
| 710 | int id, |
| 711 | int first, |
| 712 | int second) { |
| 713 | __ movl(rcx, Immediate(first)); |
| 714 | __ Integer32ToSmi(rcx, rcx); |
| 715 | __ movl(rdx, Immediate(second)); |
| 716 | __ Integer32ToSmi(rdx, rdx); |
| 717 | __ movl(r8, Immediate(first + second)); |
| 718 | __ Integer32ToSmi(r8, r8); |
| 719 | |
| 720 | __ movl(rax, Immediate(id)); // Test number. |
| 721 | __ SmiAdd(r9, rcx, rdx, exit); |
| 722 | __ SmiCompare(r9, r8); |
| 723 | __ j(not_equal, exit); |
| 724 | |
| 725 | __ incq(rax); |
| 726 | __ SmiAdd(rcx, rcx, rdx, exit); \ |
| 727 | __ SmiCompare(rcx, r8); |
| 728 | __ j(not_equal, exit); |
| 729 | |
| 730 | __ movl(rcx, Immediate(first)); |
| 731 | __ Integer32ToSmi(rcx, rcx); |
| 732 | |
| 733 | __ incq(rax); |
| 734 | __ SmiAddConstant(r9, rcx, Smi::FromInt(second)); |
| 735 | __ SmiCompare(r9, r8); |
| 736 | __ j(not_equal, exit); |
| 737 | |
| 738 | __ SmiAddConstant(rcx, rcx, Smi::FromInt(second)); |
| 739 | __ SmiCompare(rcx, r8); |
| 740 | __ j(not_equal, exit); |
| 741 | |
| 742 | __ movl(rcx, Immediate(first)); |
| 743 | __ Integer32ToSmi(rcx, rcx); |
| 744 | |
| 745 | __ incq(rax); |
| 746 | __ SmiAddConstant(r9, rcx, Smi::FromInt(second), exit); |
| 747 | __ SmiCompare(r9, r8); |
| 748 | __ j(not_equal, exit); |
| 749 | |
| 750 | __ incq(rax); |
| 751 | __ SmiAddConstant(rcx, rcx, Smi::FromInt(second), exit); |
| 752 | __ SmiCompare(rcx, r8); |
| 753 | __ j(not_equal, exit); |
| 754 | } |
| 755 | |
| 756 | TEST(SmiAdd) { |
| 757 | // Allocate an executable page of memory. |
| 758 | size_t actual_size; |
| 759 | byte* buffer = static_cast<byte*>(OS::Allocate(Assembler::kMinimalBufferSize, |
| 760 | &actual_size, |
| 761 | true)); |
| 762 | CHECK(buffer); |
| 763 | HandleScope handles; |
| 764 | MacroAssembler assembler(buffer, actual_size); |
| 765 | |
| 766 | MacroAssembler* masm = &assembler; |
| 767 | masm->set_allow_stub_calls(false); |
| 768 | Label exit; |
| 769 | |
| 770 | // No-overflow tests. |
| 771 | SmiAddTest(masm, &exit, 0x10, 1, 2); |
| 772 | SmiAddTest(masm, &exit, 0x20, 1, -2); |
| 773 | SmiAddTest(masm, &exit, 0x30, -1, 2); |
| 774 | SmiAddTest(masm, &exit, 0x40, -1, -2); |
| 775 | SmiAddTest(masm, &exit, 0x50, 0x1000, 0x2000); |
| 776 | SmiAddTest(masm, &exit, 0x60, Smi::kMinValue, 5); |
| 777 | SmiAddTest(masm, &exit, 0x70, Smi::kMaxValue, -5); |
| 778 | SmiAddTest(masm, &exit, 0x80, Smi::kMaxValue, Smi::kMinValue); |
| 779 | |
| 780 | __ xor_(rax, rax); // Success. |
| 781 | __ bind(&exit); |
| 782 | __ ret(0); |
| 783 | |
| 784 | CodeDesc desc; |
| 785 | masm->GetCode(&desc); |
| 786 | // Call the function from C++. |
| 787 | int result = FUNCTION_CAST<F0>(buffer)(); |
| 788 | CHECK_EQ(0, result); |
| 789 | } |
| 790 | |
| 791 | |
| 792 | static void SmiSubTest(MacroAssembler* masm, |
| 793 | Label* exit, |
| 794 | int id, |
| 795 | int first, |
| 796 | int second) { |
| 797 | __ Move(rcx, Smi::FromInt(first)); |
| 798 | __ Move(rdx, Smi::FromInt(second)); |
| 799 | __ Move(r8, Smi::FromInt(first - second)); |
| 800 | |
| 801 | __ movl(rax, Immediate(id)); // Test 0. |
| 802 | __ SmiSub(r9, rcx, rdx, exit); |
| 803 | __ SmiCompare(r9, r8); |
| 804 | __ j(not_equal, exit); |
| 805 | |
| 806 | __ incq(rax); // Test 1. |
| 807 | __ SmiSub(rcx, rcx, rdx, exit); |
| 808 | __ SmiCompare(rcx, r8); |
| 809 | __ j(not_equal, exit); |
| 810 | |
| 811 | __ Move(rcx, Smi::FromInt(first)); |
| 812 | |
| 813 | __ incq(rax); // Test 2. |
| 814 | __ SmiSubConstant(r9, rcx, Smi::FromInt(second)); |
| 815 | __ SmiCompare(r9, r8); |
| 816 | __ j(not_equal, exit); |
| 817 | |
| 818 | __ incq(rax); // Test 3. |
| 819 | __ SmiSubConstant(rcx, rcx, Smi::FromInt(second)); |
| 820 | __ SmiCompare(rcx, r8); |
| 821 | __ j(not_equal, exit); |
| 822 | |
| 823 | __ Move(rcx, Smi::FromInt(first)); |
| 824 | |
| 825 | __ incq(rax); // Test 4. |
| 826 | __ SmiSubConstant(r9, rcx, Smi::FromInt(second), exit); |
| 827 | __ SmiCompare(r9, r8); |
| 828 | __ j(not_equal, exit); |
| 829 | |
| 830 | __ incq(rax); // Test 5. |
| 831 | __ SmiSubConstant(rcx, rcx, Smi::FromInt(second), exit); |
| 832 | __ SmiCompare(rcx, r8); |
| 833 | __ j(not_equal, exit); |
| 834 | } |
| 835 | |
| 836 | static void SmiSubOverflowTest(MacroAssembler* masm, |
| 837 | Label* exit, |
| 838 | int id, |
| 839 | int x) { |
| 840 | // Subtracts a Smi from x so that the subtraction overflows. |
| 841 | ASSERT(x != -1); // Can't overflow by subtracting a Smi. |
| 842 | int y_max = (x < 0) ? (Smi::kMaxValue + 0) : (Smi::kMinValue + 0); |
| 843 | int y_min = (x < 0) ? (Smi::kMaxValue + x + 2) : (Smi::kMinValue + x); |
| 844 | |
| 845 | __ movl(rax, Immediate(id)); |
| 846 | __ Move(rcx, Smi::FromInt(x)); |
| 847 | __ movq(r11, rcx); // Store original Smi value of x in r11. |
| 848 | __ Move(rdx, Smi::FromInt(y_min)); |
| 849 | { |
| 850 | Label overflow_ok; |
| 851 | __ SmiSub(r9, rcx, rdx, &overflow_ok); |
| 852 | __ jmp(exit); |
| 853 | __ bind(&overflow_ok); |
| 854 | __ incq(rax); |
| 855 | __ SmiCompare(rcx, r11); |
| 856 | __ j(not_equal, exit); |
| 857 | } |
| 858 | |
| 859 | { |
| 860 | Label overflow_ok; |
| 861 | __ incq(rax); |
| 862 | __ SmiSub(rcx, rcx, rdx, &overflow_ok); |
| 863 | __ jmp(exit); |
| 864 | __ bind(&overflow_ok); |
| 865 | __ incq(rax); |
| 866 | __ SmiCompare(rcx, r11); |
| 867 | __ j(not_equal, exit); |
| 868 | } |
| 869 | |
| 870 | __ movq(rcx, r11); |
| 871 | { |
| 872 | Label overflow_ok; |
| 873 | __ incq(rax); |
| 874 | __ SmiSubConstant(r9, rcx, Smi::FromInt(y_min), &overflow_ok); |
| 875 | __ jmp(exit); |
| 876 | __ bind(&overflow_ok); |
| 877 | __ incq(rax); |
| 878 | __ SmiCompare(rcx, r11); |
| 879 | __ j(not_equal, exit); |
| 880 | } |
| 881 | |
| 882 | { |
| 883 | Label overflow_ok; |
| 884 | __ incq(rax); |
| 885 | __ SmiSubConstant(rcx, rcx, Smi::FromInt(y_min), &overflow_ok); |
| 886 | __ jmp(exit); |
| 887 | __ bind(&overflow_ok); |
| 888 | __ incq(rax); |
| 889 | __ SmiCompare(rcx, r11); |
| 890 | __ j(not_equal, exit); |
| 891 | } |
| 892 | |
| 893 | __ Move(rdx, Smi::FromInt(y_max)); |
| 894 | |
| 895 | { |
| 896 | Label overflow_ok; |
| 897 | __ incq(rax); |
| 898 | __ SmiSub(r9, rcx, rdx, &overflow_ok); |
| 899 | __ jmp(exit); |
| 900 | __ bind(&overflow_ok); |
| 901 | __ incq(rax); |
| 902 | __ SmiCompare(rcx, r11); |
| 903 | __ j(not_equal, exit); |
| 904 | } |
| 905 | |
| 906 | { |
| 907 | Label overflow_ok; |
| 908 | __ incq(rax); |
| 909 | __ SmiSub(rcx, rcx, rdx, &overflow_ok); |
| 910 | __ jmp(exit); |
| 911 | __ bind(&overflow_ok); |
| 912 | __ incq(rax); |
| 913 | __ SmiCompare(rcx, r11); |
| 914 | __ j(not_equal, exit); |
| 915 | } |
| 916 | |
| 917 | __ movq(rcx, r11); |
| 918 | { |
| 919 | Label overflow_ok; |
| 920 | __ incq(rax); |
| 921 | __ SmiSubConstant(r9, rcx, Smi::FromInt(y_max), &overflow_ok); |
| 922 | __ jmp(exit); |
| 923 | __ bind(&overflow_ok); |
| 924 | __ incq(rax); |
| 925 | __ SmiCompare(rcx, r11); |
| 926 | __ j(not_equal, exit); |
| 927 | } |
| 928 | |
| 929 | { |
| 930 | Label overflow_ok; |
| 931 | __ incq(rax); |
| 932 | __ SmiSubConstant(rcx, rcx, Smi::FromInt(y_max), &overflow_ok); |
| 933 | __ jmp(exit); |
| 934 | __ bind(&overflow_ok); |
| 935 | __ incq(rax); |
| 936 | __ SmiCompare(rcx, r11); |
| 937 | __ j(not_equal, exit); |
| 938 | } |
| 939 | } |
| 940 | |
| 941 | |
| 942 | TEST(SmiSub) { |
| 943 | // Allocate an executable page of memory. |
| 944 | size_t actual_size; |
| 945 | byte* buffer = |
| 946 | static_cast<byte*>(OS::Allocate(Assembler::kMinimalBufferSize * 2, |
| 947 | &actual_size, |
| 948 | true)); |
| 949 | CHECK(buffer); |
| 950 | HandleScope handles; |
| 951 | MacroAssembler assembler(buffer, actual_size); |
| 952 | |
| 953 | MacroAssembler* masm = &assembler; |
| 954 | masm->set_allow_stub_calls(false); |
| 955 | Label exit; |
| 956 | |
| 957 | SmiSubTest(masm, &exit, 0x10, 1, 2); |
| 958 | SmiSubTest(masm, &exit, 0x20, 1, -2); |
| 959 | SmiSubTest(masm, &exit, 0x30, -1, 2); |
| 960 | SmiSubTest(masm, &exit, 0x40, -1, -2); |
| 961 | SmiSubTest(masm, &exit, 0x50, 0x1000, 0x2000); |
| 962 | SmiSubTest(masm, &exit, 0x60, Smi::kMinValue, -5); |
| 963 | SmiSubTest(masm, &exit, 0x70, Smi::kMaxValue, 5); |
| 964 | SmiSubTest(masm, &exit, 0x80, -Smi::kMaxValue, Smi::kMinValue); |
| 965 | SmiSubTest(masm, &exit, 0x90, 0, Smi::kMaxValue); |
| 966 | |
| 967 | SmiSubOverflowTest(masm, &exit, 0xA0, 1); |
| 968 | SmiSubOverflowTest(masm, &exit, 0xB0, 1024); |
| 969 | SmiSubOverflowTest(masm, &exit, 0xC0, Smi::kMaxValue); |
| 970 | SmiSubOverflowTest(masm, &exit, 0xD0, -2); |
| 971 | SmiSubOverflowTest(masm, &exit, 0xE0, -42000); |
| 972 | SmiSubOverflowTest(masm, &exit, 0xF0, Smi::kMinValue); |
| 973 | SmiSubOverflowTest(masm, &exit, 0x100, 0); |
| 974 | |
| 975 | __ xor_(rax, rax); // Success. |
| 976 | __ bind(&exit); |
| 977 | __ ret(0); |
| 978 | |
| 979 | CodeDesc desc; |
| 980 | masm->GetCode(&desc); |
| 981 | // Call the function from C++. |
| 982 | int result = FUNCTION_CAST<F0>(buffer)(); |
| 983 | CHECK_EQ(0, result); |
| 984 | } |
| 985 | |
| 986 | |
| 987 | |
| 988 | void TestSmiMul(MacroAssembler* masm, Label* exit, int id, int x, int y) { |
| 989 | int64_t result = static_cast<int64_t>(x) * static_cast<int64_t>(y); |
| 990 | bool negative_zero = (result == 0) && (x < 0 || y < 0); |
| 991 | __ Move(rcx, Smi::FromInt(x)); |
| 992 | __ movq(r11, rcx); |
| 993 | __ Move(rdx, Smi::FromInt(y)); |
| 994 | if (Smi::IsValid(result) && !negative_zero) { |
| 995 | __ movl(rax, Immediate(id)); |
| 996 | __ Move(r8, Smi::FromIntptr(result)); |
| 997 | __ SmiMul(r9, rcx, rdx, exit); |
| 998 | __ incq(rax); |
| 999 | __ SmiCompare(r11, rcx); |
| 1000 | __ j(not_equal, exit); |
| 1001 | __ incq(rax); |
| 1002 | __ SmiCompare(r9, r8); |
| 1003 | __ j(not_equal, exit); |
| 1004 | |
| 1005 | __ incq(rax); |
| 1006 | __ SmiMul(rcx, rcx, rdx, exit); |
| 1007 | __ SmiCompare(rcx, r8); |
| 1008 | __ j(not_equal, exit); |
| 1009 | } else { |
| 1010 | __ movl(rax, Immediate(id + 8)); |
| 1011 | Label overflow_ok, overflow_ok2; |
| 1012 | __ SmiMul(r9, rcx, rdx, &overflow_ok); |
| 1013 | __ jmp(exit); |
| 1014 | __ bind(&overflow_ok); |
| 1015 | __ incq(rax); |
| 1016 | __ SmiCompare(r11, rcx); |
| 1017 | __ j(not_equal, exit); |
| 1018 | __ incq(rax); |
| 1019 | __ SmiMul(rcx, rcx, rdx, &overflow_ok2); |
| 1020 | __ jmp(exit); |
| 1021 | __ bind(&overflow_ok2); |
| 1022 | // 31-bit version doesn't preserve rcx on failure. |
| 1023 | // __ incq(rax); |
| 1024 | // __ SmiCompare(r11, rcx); |
| 1025 | // __ j(not_equal, exit); |
| 1026 | } |
| 1027 | } |
| 1028 | |
| 1029 | |
| 1030 | TEST(SmiMul) { |
| 1031 | // Allocate an executable page of memory. |
| 1032 | size_t actual_size; |
| 1033 | byte* buffer = static_cast<byte*>(OS::Allocate(Assembler::kMinimalBufferSize, |
| 1034 | &actual_size, |
| 1035 | true)); |
| 1036 | CHECK(buffer); |
| 1037 | HandleScope handles; |
| 1038 | MacroAssembler assembler(buffer, actual_size); |
| 1039 | |
| 1040 | MacroAssembler* masm = &assembler; |
| 1041 | masm->set_allow_stub_calls(false); |
| 1042 | Label exit; |
| 1043 | |
| 1044 | TestSmiMul(masm, &exit, 0x10, 0, 0); |
| 1045 | TestSmiMul(masm, &exit, 0x20, -1, 0); |
| 1046 | TestSmiMul(masm, &exit, 0x30, 0, -1); |
| 1047 | TestSmiMul(masm, &exit, 0x40, -1, -1); |
| 1048 | TestSmiMul(masm, &exit, 0x50, 0x10000, 0x10000); |
| 1049 | TestSmiMul(masm, &exit, 0x60, 0x10000, 0xffff); |
| 1050 | TestSmiMul(masm, &exit, 0x70, 0x10000, 0xffff); |
| 1051 | TestSmiMul(masm, &exit, 0x80, Smi::kMaxValue, -1); |
| 1052 | TestSmiMul(masm, &exit, 0x90, Smi::kMaxValue, -2); |
| 1053 | TestSmiMul(masm, &exit, 0xa0, Smi::kMaxValue, 2); |
| 1054 | TestSmiMul(masm, &exit, 0xb0, (Smi::kMaxValue / 2), 2); |
| 1055 | TestSmiMul(masm, &exit, 0xc0, (Smi::kMaxValue / 2) + 1, 2); |
| 1056 | TestSmiMul(masm, &exit, 0xd0, (Smi::kMinValue / 2), 2); |
| 1057 | TestSmiMul(masm, &exit, 0xe0, (Smi::kMinValue / 2) - 1, 2); |
| 1058 | |
| 1059 | __ xor_(rax, rax); // Success. |
| 1060 | __ bind(&exit); |
| 1061 | __ ret(0); |
| 1062 | |
| 1063 | CodeDesc desc; |
| 1064 | masm->GetCode(&desc); |
| 1065 | // Call the function from C++. |
| 1066 | int result = FUNCTION_CAST<F0>(buffer)(); |
| 1067 | CHECK_EQ(0, result); |
| 1068 | } |
| 1069 | |
| 1070 | |
| 1071 | void TestSmiDiv(MacroAssembler* masm, Label* exit, int id, int x, int y) { |
| 1072 | bool division_by_zero = (y == 0); |
| 1073 | bool negative_zero = (x == 0 && y < 0); |
| 1074 | #ifdef V8_TARGET_ARCH_X64 |
| 1075 | bool overflow = (x == Smi::kMinValue && y < 0); // Safe approx. used. |
| 1076 | #else |
| 1077 | bool overflow = (x == Smi::kMinValue && y == -1); |
| 1078 | #endif |
| 1079 | bool fraction = !division_by_zero && !overflow && (x % y != 0); |
| 1080 | __ Move(r11, Smi::FromInt(x)); |
| 1081 | __ Move(r12, Smi::FromInt(y)); |
| 1082 | if (!fraction && !overflow && !negative_zero && !division_by_zero) { |
| 1083 | // Division succeeds |
| 1084 | __ movq(rcx, r11); |
| 1085 | __ movq(r15, Immediate(id)); |
| 1086 | int result = x / y; |
| 1087 | __ Move(r8, Smi::FromInt(result)); |
| 1088 | __ SmiDiv(r9, rcx, r12, exit); |
| 1089 | // Might have destroyed rcx and r12. |
| 1090 | __ incq(r15); |
| 1091 | __ SmiCompare(r9, r8); |
| 1092 | __ j(not_equal, exit); |
| 1093 | |
| 1094 | __ incq(r15); |
| 1095 | __ movq(rcx, r11); |
| 1096 | __ Move(r12, Smi::FromInt(y)); |
| 1097 | __ SmiCompare(rcx, r11); |
| 1098 | __ j(not_equal, exit); |
| 1099 | |
| 1100 | __ incq(r15); |
| 1101 | __ SmiDiv(rcx, rcx, r12, exit); |
| 1102 | |
| 1103 | __ incq(r15); |
| 1104 | __ SmiCompare(rcx, r8); |
| 1105 | __ j(not_equal, exit); |
| 1106 | } else { |
| 1107 | // Division fails. |
| 1108 | __ movq(r15, Immediate(id + 8)); |
| 1109 | |
| 1110 | Label fail_ok, fail_ok2; |
| 1111 | __ movq(rcx, r11); |
| 1112 | __ SmiDiv(r9, rcx, r12, &fail_ok); |
| 1113 | __ jmp(exit); |
| 1114 | __ bind(&fail_ok); |
| 1115 | |
| 1116 | __ incq(r15); |
| 1117 | __ SmiCompare(rcx, r11); |
| 1118 | __ j(not_equal, exit); |
| 1119 | |
| 1120 | __ incq(r15); |
| 1121 | __ SmiDiv(rcx, rcx, r12, &fail_ok2); |
| 1122 | __ jmp(exit); |
| 1123 | __ bind(&fail_ok2); |
| 1124 | |
| 1125 | __ incq(r15); |
| 1126 | __ SmiCompare(rcx, r11); |
| 1127 | __ j(not_equal, exit); |
| 1128 | } |
| 1129 | } |
| 1130 | |
| 1131 | |
| 1132 | TEST(SmiDiv) { |
| 1133 | // Allocate an executable page of memory. |
| 1134 | size_t actual_size; |
| 1135 | byte* buffer = |
| 1136 | static_cast<byte*>(OS::Allocate(Assembler::kMinimalBufferSize * 2, |
| 1137 | &actual_size, |
| 1138 | true)); |
| 1139 | CHECK(buffer); |
| 1140 | HandleScope handles; |
| 1141 | MacroAssembler assembler(buffer, actual_size); |
| 1142 | |
| 1143 | MacroAssembler* masm = &assembler; |
| 1144 | masm->set_allow_stub_calls(false); |
| 1145 | Label exit; |
| 1146 | |
| 1147 | TestSmiDiv(masm, &exit, 0x10, 1, 1); |
| 1148 | TestSmiDiv(masm, &exit, 0x20, 1, 0); |
| 1149 | TestSmiDiv(masm, &exit, 0x30, -1, 0); |
| 1150 | TestSmiDiv(masm, &exit, 0x40, 0, 1); |
| 1151 | TestSmiDiv(masm, &exit, 0x50, 0, -1); |
| 1152 | TestSmiDiv(masm, &exit, 0x60, 4, 2); |
| 1153 | TestSmiDiv(masm, &exit, 0x70, -4, 2); |
| 1154 | TestSmiDiv(masm, &exit, 0x80, 4, -2); |
| 1155 | TestSmiDiv(masm, &exit, 0x90, -4, -2); |
| 1156 | TestSmiDiv(masm, &exit, 0xa0, 3, 2); |
| 1157 | TestSmiDiv(masm, &exit, 0xb0, 3, 4); |
| 1158 | TestSmiDiv(masm, &exit, 0xc0, 1, Smi::kMaxValue); |
| 1159 | TestSmiDiv(masm, &exit, 0xd0, -1, Smi::kMaxValue); |
| 1160 | TestSmiDiv(masm, &exit, 0xe0, Smi::kMaxValue, 1); |
| 1161 | TestSmiDiv(masm, &exit, 0xf0, Smi::kMaxValue, Smi::kMaxValue); |
| 1162 | TestSmiDiv(masm, &exit, 0x100, Smi::kMaxValue, -Smi::kMaxValue); |
| 1163 | TestSmiDiv(masm, &exit, 0x110, Smi::kMaxValue, -1); |
| 1164 | TestSmiDiv(masm, &exit, 0x120, Smi::kMinValue, 1); |
| 1165 | TestSmiDiv(masm, &exit, 0x130, Smi::kMinValue, Smi::kMinValue); |
| 1166 | TestSmiDiv(masm, &exit, 0x140, Smi::kMinValue, -1); |
| 1167 | |
| 1168 | __ xor_(r15, r15); // Success. |
| 1169 | __ bind(&exit); |
| 1170 | __ movq(rax, r15); |
| 1171 | __ ret(0); |
| 1172 | |
| 1173 | CodeDesc desc; |
| 1174 | masm->GetCode(&desc); |
| 1175 | // Call the function from C++. |
| 1176 | int result = FUNCTION_CAST<F0>(buffer)(); |
| 1177 | CHECK_EQ(0, result); |
| 1178 | } |
| 1179 | |
| 1180 | |
| 1181 | void TestSmiMod(MacroAssembler* masm, Label* exit, int id, int x, int y) { |
| 1182 | bool division_by_zero = (y == 0); |
| 1183 | bool division_overflow = (x == Smi::kMinValue) && (y == -1); |
| 1184 | bool fraction = !division_by_zero && !division_overflow && ((x % y) != 0); |
| 1185 | bool negative_zero = (!fraction && x < 0); |
| 1186 | __ Move(rcx, Smi::FromInt(x)); |
| 1187 | __ movq(r11, rcx); |
| 1188 | __ Move(r12, Smi::FromInt(y)); |
| 1189 | if (!division_overflow && !negative_zero && !division_by_zero) { |
| 1190 | // Modulo succeeds |
| 1191 | __ movq(r15, Immediate(id)); |
| 1192 | int result = x % y; |
| 1193 | __ Move(r8, Smi::FromInt(result)); |
| 1194 | __ SmiMod(r9, rcx, r12, exit); |
| 1195 | |
| 1196 | __ incq(r15); |
| 1197 | __ SmiCompare(r9, r8); |
| 1198 | __ j(not_equal, exit); |
| 1199 | |
| 1200 | __ incq(r15); |
| 1201 | __ SmiCompare(rcx, r11); |
| 1202 | __ j(not_equal, exit); |
| 1203 | |
| 1204 | __ incq(r15); |
| 1205 | __ SmiMod(rcx, rcx, r12, exit); |
| 1206 | |
| 1207 | __ incq(r15); |
| 1208 | __ SmiCompare(rcx, r8); |
| 1209 | __ j(not_equal, exit); |
| 1210 | } else { |
| 1211 | // Modulo fails. |
| 1212 | __ movq(r15, Immediate(id + 8)); |
| 1213 | |
| 1214 | Label fail_ok, fail_ok2; |
| 1215 | __ SmiMod(r9, rcx, r12, &fail_ok); |
| 1216 | __ jmp(exit); |
| 1217 | __ bind(&fail_ok); |
| 1218 | |
| 1219 | __ incq(r15); |
| 1220 | __ SmiCompare(rcx, r11); |
| 1221 | __ j(not_equal, exit); |
| 1222 | |
| 1223 | __ incq(r15); |
| 1224 | __ SmiMod(rcx, rcx, r12, &fail_ok2); |
| 1225 | __ jmp(exit); |
| 1226 | __ bind(&fail_ok2); |
| 1227 | |
| 1228 | __ incq(r15); |
| 1229 | __ SmiCompare(rcx, r11); |
| 1230 | __ j(not_equal, exit); |
| 1231 | } |
| 1232 | } |
| 1233 | |
| 1234 | |
| 1235 | TEST(SmiMod) { |
| 1236 | // Allocate an executable page of memory. |
| 1237 | size_t actual_size; |
| 1238 | byte* buffer = |
| 1239 | static_cast<byte*>(OS::Allocate(Assembler::kMinimalBufferSize * 2, |
| 1240 | &actual_size, |
| 1241 | true)); |
| 1242 | CHECK(buffer); |
| 1243 | HandleScope handles; |
| 1244 | MacroAssembler assembler(buffer, actual_size); |
| 1245 | |
| 1246 | MacroAssembler* masm = &assembler; |
| 1247 | masm->set_allow_stub_calls(false); |
| 1248 | Label exit; |
| 1249 | |
| 1250 | TestSmiMod(masm, &exit, 0x10, 1, 1); |
| 1251 | TestSmiMod(masm, &exit, 0x20, 1, 0); |
| 1252 | TestSmiMod(masm, &exit, 0x30, -1, 0); |
| 1253 | TestSmiMod(masm, &exit, 0x40, 0, 1); |
| 1254 | TestSmiMod(masm, &exit, 0x50, 0, -1); |
| 1255 | TestSmiMod(masm, &exit, 0x60, 4, 2); |
| 1256 | TestSmiMod(masm, &exit, 0x70, -4, 2); |
| 1257 | TestSmiMod(masm, &exit, 0x80, 4, -2); |
| 1258 | TestSmiMod(masm, &exit, 0x90, -4, -2); |
| 1259 | TestSmiMod(masm, &exit, 0xa0, 3, 2); |
| 1260 | TestSmiMod(masm, &exit, 0xb0, 3, 4); |
| 1261 | TestSmiMod(masm, &exit, 0xc0, 1, Smi::kMaxValue); |
| 1262 | TestSmiMod(masm, &exit, 0xd0, -1, Smi::kMaxValue); |
| 1263 | TestSmiMod(masm, &exit, 0xe0, Smi::kMaxValue, 1); |
| 1264 | TestSmiMod(masm, &exit, 0xf0, Smi::kMaxValue, Smi::kMaxValue); |
| 1265 | TestSmiMod(masm, &exit, 0x100, Smi::kMaxValue, -Smi::kMaxValue); |
| 1266 | TestSmiMod(masm, &exit, 0x110, Smi::kMaxValue, -1); |
| 1267 | TestSmiMod(masm, &exit, 0x120, Smi::kMinValue, 1); |
| 1268 | TestSmiMod(masm, &exit, 0x130, Smi::kMinValue, Smi::kMinValue); |
| 1269 | TestSmiMod(masm, &exit, 0x140, Smi::kMinValue, -1); |
| 1270 | |
| 1271 | __ xor_(r15, r15); // Success. |
| 1272 | __ bind(&exit); |
| 1273 | __ movq(rax, r15); |
| 1274 | __ ret(0); |
| 1275 | |
| 1276 | CodeDesc desc; |
| 1277 | masm->GetCode(&desc); |
| 1278 | // Call the function from C++. |
| 1279 | int result = FUNCTION_CAST<F0>(buffer)(); |
| 1280 | CHECK_EQ(0, result); |
| 1281 | } |
| 1282 | |
| 1283 | |
| 1284 | void TestSmiIndex(MacroAssembler* masm, Label* exit, int id, int x) { |
| 1285 | __ movl(rax, Immediate(id)); |
| 1286 | |
| 1287 | for (int i = 0; i < 8; i++) { |
| 1288 | __ Move(rcx, Smi::FromInt(x)); |
| 1289 | SmiIndex index = masm->SmiToIndex(rdx, rcx, i); |
| 1290 | ASSERT(index.reg.is(rcx) || index.reg.is(rdx)); |
| 1291 | __ shl(index.reg, Immediate(index.scale)); |
| 1292 | __ Set(r8, static_cast<intptr_t>(x) << i); |
| 1293 | __ SmiCompare(index.reg, r8); |
| 1294 | __ j(not_equal, exit); |
| 1295 | __ incq(rax); |
| 1296 | __ Move(rcx, Smi::FromInt(x)); |
| 1297 | index = masm->SmiToIndex(rcx, rcx, i); |
| 1298 | ASSERT(index.reg.is(rcx)); |
| 1299 | __ shl(rcx, Immediate(index.scale)); |
| 1300 | __ Set(r8, static_cast<intptr_t>(x) << i); |
| 1301 | __ SmiCompare(rcx, r8); |
| 1302 | __ j(not_equal, exit); |
| 1303 | __ incq(rax); |
| 1304 | |
| 1305 | __ Move(rcx, Smi::FromInt(x)); |
| 1306 | index = masm->SmiToNegativeIndex(rdx, rcx, i); |
| 1307 | ASSERT(index.reg.is(rcx) || index.reg.is(rdx)); |
| 1308 | __ shl(index.reg, Immediate(index.scale)); |
| 1309 | __ Set(r8, static_cast<intptr_t>(-x) << i); |
| 1310 | __ SmiCompare(index.reg, r8); |
| 1311 | __ j(not_equal, exit); |
| 1312 | __ incq(rax); |
| 1313 | __ Move(rcx, Smi::FromInt(x)); |
| 1314 | index = masm->SmiToNegativeIndex(rcx, rcx, i); |
| 1315 | ASSERT(index.reg.is(rcx)); |
| 1316 | __ shl(rcx, Immediate(index.scale)); |
| 1317 | __ Set(r8, static_cast<intptr_t>(-x) << i); |
| 1318 | __ SmiCompare(rcx, r8); |
| 1319 | __ j(not_equal, exit); |
| 1320 | __ incq(rax); |
| 1321 | } |
| 1322 | } |
| 1323 | |
| 1324 | TEST(SmiIndex) { |
| 1325 | // Allocate an executable page of memory. |
| 1326 | size_t actual_size; |
| 1327 | byte* buffer = |
| 1328 | static_cast<byte*>(OS::Allocate(Assembler::kMinimalBufferSize * 2, |
| 1329 | &actual_size, |
| 1330 | true)); |
| 1331 | CHECK(buffer); |
| 1332 | HandleScope handles; |
| 1333 | MacroAssembler assembler(buffer, actual_size); |
| 1334 | |
| 1335 | MacroAssembler* masm = &assembler; |
| 1336 | masm->set_allow_stub_calls(false); |
| 1337 | Label exit; |
| 1338 | |
| 1339 | TestSmiIndex(masm, &exit, 0x10, 0); |
| 1340 | TestSmiIndex(masm, &exit, 0x20, 1); |
| 1341 | TestSmiIndex(masm, &exit, 0x30, 100); |
| 1342 | TestSmiIndex(masm, &exit, 0x40, 1000); |
| 1343 | TestSmiIndex(masm, &exit, 0x50, Smi::kMaxValue); |
| 1344 | |
| 1345 | __ xor_(rax, rax); // Success. |
| 1346 | __ bind(&exit); |
| 1347 | __ ret(0); |
| 1348 | |
| 1349 | CodeDesc desc; |
| 1350 | masm->GetCode(&desc); |
| 1351 | // Call the function from C++. |
| 1352 | int result = FUNCTION_CAST<F0>(buffer)(); |
| 1353 | CHECK_EQ(0, result); |
| 1354 | } |
| 1355 | |
| 1356 | |
| 1357 | void TestSelectNonSmi(MacroAssembler* masm, Label* exit, int id, int x, int y) { |
| 1358 | __ movl(rax, Immediate(id)); |
| 1359 | __ Move(rcx, Smi::FromInt(x)); |
| 1360 | __ Move(rdx, Smi::FromInt(y)); |
| 1361 | __ xor_(rdx, Immediate(kSmiTagMask)); |
| 1362 | __ SelectNonSmi(r9, rcx, rdx, exit); |
| 1363 | |
| 1364 | __ incq(rax); |
| 1365 | __ SmiCompare(r9, rdx); |
| 1366 | __ j(not_equal, exit); |
| 1367 | |
| 1368 | __ incq(rax); |
| 1369 | __ Move(rcx, Smi::FromInt(x)); |
| 1370 | __ Move(rdx, Smi::FromInt(y)); |
| 1371 | __ xor_(rcx, Immediate(kSmiTagMask)); |
| 1372 | __ SelectNonSmi(r9, rcx, rdx, exit); |
| 1373 | |
| 1374 | __ incq(rax); |
| 1375 | __ SmiCompare(r9, rcx); |
| 1376 | __ j(not_equal, exit); |
| 1377 | |
| 1378 | __ incq(rax); |
| 1379 | Label fail_ok; |
| 1380 | __ Move(rcx, Smi::FromInt(x)); |
| 1381 | __ Move(rdx, Smi::FromInt(y)); |
| 1382 | __ xor_(rcx, Immediate(kSmiTagMask)); |
| 1383 | __ xor_(rdx, Immediate(kSmiTagMask)); |
| 1384 | __ SelectNonSmi(r9, rcx, rdx, &fail_ok); |
| 1385 | __ jmp(exit); |
| 1386 | __ bind(&fail_ok); |
| 1387 | } |
| 1388 | |
| 1389 | |
| 1390 | TEST(SmiSelectNonSmi) { |
| 1391 | // Allocate an executable page of memory. |
| 1392 | size_t actual_size; |
| 1393 | byte* buffer = |
| 1394 | static_cast<byte*>(OS::Allocate(Assembler::kMinimalBufferSize, |
| 1395 | &actual_size, |
| 1396 | true)); |
| 1397 | CHECK(buffer); |
| 1398 | HandleScope handles; |
| 1399 | MacroAssembler assembler(buffer, actual_size); |
| 1400 | |
| 1401 | MacroAssembler* masm = &assembler; |
| 1402 | masm->set_allow_stub_calls(false); // Avoid inline checks. |
| 1403 | Label exit; |
| 1404 | |
| 1405 | TestSelectNonSmi(masm, &exit, 0x10, 0, 0); |
| 1406 | TestSelectNonSmi(masm, &exit, 0x20, 0, 1); |
| 1407 | TestSelectNonSmi(masm, &exit, 0x30, 1, 0); |
| 1408 | TestSelectNonSmi(masm, &exit, 0x40, 0, -1); |
| 1409 | TestSelectNonSmi(masm, &exit, 0x50, -1, 0); |
| 1410 | TestSelectNonSmi(masm, &exit, 0x60, -1, -1); |
| 1411 | TestSelectNonSmi(masm, &exit, 0x70, 1, 1); |
| 1412 | TestSelectNonSmi(masm, &exit, 0x80, Smi::kMinValue, Smi::kMaxValue); |
| 1413 | TestSelectNonSmi(masm, &exit, 0x90, Smi::kMinValue, Smi::kMinValue); |
| 1414 | |
| 1415 | __ xor_(rax, rax); // Success. |
| 1416 | __ bind(&exit); |
| 1417 | __ ret(0); |
| 1418 | |
| 1419 | CodeDesc desc; |
| 1420 | masm->GetCode(&desc); |
| 1421 | // Call the function from C++. |
| 1422 | int result = FUNCTION_CAST<F0>(buffer)(); |
| 1423 | CHECK_EQ(0, result); |
| 1424 | } |
| 1425 | |
| 1426 | |
| 1427 | void TestSmiAnd(MacroAssembler* masm, Label* exit, int id, int x, int y) { |
| 1428 | int result = x & y; |
| 1429 | |
| 1430 | __ movl(rax, Immediate(id)); |
| 1431 | |
| 1432 | __ Move(rcx, Smi::FromInt(x)); |
| 1433 | __ movq(r11, rcx); |
| 1434 | __ Move(rdx, Smi::FromInt(y)); |
| 1435 | __ Move(r8, Smi::FromInt(result)); |
| 1436 | __ SmiAnd(r9, rcx, rdx); |
| 1437 | __ SmiCompare(r8, r9); |
| 1438 | __ j(not_equal, exit); |
| 1439 | |
| 1440 | __ incq(rax); |
| 1441 | __ SmiCompare(r11, rcx); |
| 1442 | __ j(not_equal, exit); |
| 1443 | |
| 1444 | __ incq(rax); |
| 1445 | __ SmiAnd(rcx, rcx, rdx); |
| 1446 | __ SmiCompare(r8, rcx); |
| 1447 | __ j(not_equal, exit); |
| 1448 | |
| 1449 | __ movq(rcx, r11); |
| 1450 | __ incq(rax); |
| 1451 | __ SmiAndConstant(r9, rcx, Smi::FromInt(y)); |
| 1452 | __ SmiCompare(r8, r9); |
| 1453 | __ j(not_equal, exit); |
| 1454 | |
| 1455 | __ incq(rax); |
| 1456 | __ SmiCompare(r11, rcx); |
| 1457 | __ j(not_equal, exit); |
| 1458 | |
| 1459 | __ incq(rax); |
| 1460 | __ SmiAndConstant(rcx, rcx, Smi::FromInt(y)); |
| 1461 | __ SmiCompare(r8, rcx); |
| 1462 | __ j(not_equal, exit); |
| 1463 | } |
| 1464 | |
| 1465 | |
| 1466 | TEST(SmiAnd) { |
| 1467 | // Allocate an executable page of memory. |
| 1468 | size_t actual_size; |
| 1469 | byte* buffer = |
| 1470 | static_cast<byte*>(OS::Allocate(Assembler::kMinimalBufferSize, |
| 1471 | &actual_size, |
| 1472 | true)); |
| 1473 | CHECK(buffer); |
| 1474 | HandleScope handles; |
| 1475 | MacroAssembler assembler(buffer, actual_size); |
| 1476 | |
| 1477 | MacroAssembler* masm = &assembler; |
| 1478 | masm->set_allow_stub_calls(false); |
| 1479 | Label exit; |
| 1480 | |
| 1481 | TestSmiAnd(masm, &exit, 0x10, 0, 0); |
| 1482 | TestSmiAnd(masm, &exit, 0x20, 0, 1); |
| 1483 | TestSmiAnd(masm, &exit, 0x30, 1, 0); |
| 1484 | TestSmiAnd(masm, &exit, 0x40, 0, -1); |
| 1485 | TestSmiAnd(masm, &exit, 0x50, -1, 0); |
| 1486 | TestSmiAnd(masm, &exit, 0x60, -1, -1); |
| 1487 | TestSmiAnd(masm, &exit, 0x70, 1, 1); |
| 1488 | TestSmiAnd(masm, &exit, 0x80, Smi::kMinValue, Smi::kMaxValue); |
| 1489 | TestSmiAnd(masm, &exit, 0x90, Smi::kMinValue, Smi::kMinValue); |
| 1490 | TestSmiAnd(masm, &exit, 0xA0, Smi::kMinValue, -1); |
| 1491 | TestSmiAnd(masm, &exit, 0xB0, Smi::kMinValue, -1); |
| 1492 | |
| 1493 | __ xor_(rax, rax); // Success. |
| 1494 | __ bind(&exit); |
| 1495 | __ ret(0); |
| 1496 | |
| 1497 | CodeDesc desc; |
| 1498 | masm->GetCode(&desc); |
| 1499 | // Call the function from C++. |
| 1500 | int result = FUNCTION_CAST<F0>(buffer)(); |
| 1501 | CHECK_EQ(0, result); |
| 1502 | } |
| 1503 | |
| 1504 | |
| 1505 | void TestSmiOr(MacroAssembler* masm, Label* exit, int id, int x, int y) { |
| 1506 | int result = x | y; |
| 1507 | |
| 1508 | __ movl(rax, Immediate(id)); |
| 1509 | |
| 1510 | __ Move(rcx, Smi::FromInt(x)); |
| 1511 | __ movq(r11, rcx); |
| 1512 | __ Move(rdx, Smi::FromInt(y)); |
| 1513 | __ Move(r8, Smi::FromInt(result)); |
| 1514 | __ SmiOr(r9, rcx, rdx); |
| 1515 | __ SmiCompare(r8, r9); |
| 1516 | __ j(not_equal, exit); |
| 1517 | |
| 1518 | __ incq(rax); |
| 1519 | __ SmiCompare(r11, rcx); |
| 1520 | __ j(not_equal, exit); |
| 1521 | |
| 1522 | __ incq(rax); |
| 1523 | __ SmiOr(rcx, rcx, rdx); |
| 1524 | __ SmiCompare(r8, rcx); |
| 1525 | __ j(not_equal, exit); |
| 1526 | |
| 1527 | __ movq(rcx, r11); |
| 1528 | __ incq(rax); |
| 1529 | __ SmiOrConstant(r9, rcx, Smi::FromInt(y)); |
| 1530 | __ SmiCompare(r8, r9); |
| 1531 | __ j(not_equal, exit); |
| 1532 | |
| 1533 | __ incq(rax); |
| 1534 | __ SmiCompare(r11, rcx); |
| 1535 | __ j(not_equal, exit); |
| 1536 | |
| 1537 | __ incq(rax); |
| 1538 | __ SmiOrConstant(rcx, rcx, Smi::FromInt(y)); |
| 1539 | __ SmiCompare(r8, rcx); |
| 1540 | __ j(not_equal, exit); |
| 1541 | } |
| 1542 | |
| 1543 | |
| 1544 | TEST(SmiOr) { |
| 1545 | // Allocate an executable page of memory. |
| 1546 | size_t actual_size; |
| 1547 | byte* buffer = |
| 1548 | static_cast<byte*>(OS::Allocate(Assembler::kMinimalBufferSize, |
| 1549 | &actual_size, |
| 1550 | true)); |
| 1551 | CHECK(buffer); |
| 1552 | HandleScope handles; |
| 1553 | MacroAssembler assembler(buffer, actual_size); |
| 1554 | |
| 1555 | MacroAssembler* masm = &assembler; |
| 1556 | masm->set_allow_stub_calls(false); |
| 1557 | Label exit; |
| 1558 | |
| 1559 | TestSmiOr(masm, &exit, 0x10, 0, 0); |
| 1560 | TestSmiOr(masm, &exit, 0x20, 0, 1); |
| 1561 | TestSmiOr(masm, &exit, 0x30, 1, 0); |
| 1562 | TestSmiOr(masm, &exit, 0x40, 0, -1); |
| 1563 | TestSmiOr(masm, &exit, 0x50, -1, 0); |
| 1564 | TestSmiOr(masm, &exit, 0x60, -1, -1); |
| 1565 | TestSmiOr(masm, &exit, 0x70, 1, 1); |
| 1566 | TestSmiOr(masm, &exit, 0x80, Smi::kMinValue, Smi::kMaxValue); |
| 1567 | TestSmiOr(masm, &exit, 0x90, Smi::kMinValue, Smi::kMinValue); |
| 1568 | TestSmiOr(masm, &exit, 0xA0, Smi::kMinValue, -1); |
| 1569 | TestSmiOr(masm, &exit, 0xB0, 0x05555555, 0x01234567); |
| 1570 | TestSmiOr(masm, &exit, 0xC0, 0x05555555, 0x0fedcba9); |
| 1571 | TestSmiOr(masm, &exit, 0xD0, Smi::kMinValue, -1); |
| 1572 | |
| 1573 | __ xor_(rax, rax); // Success. |
| 1574 | __ bind(&exit); |
| 1575 | __ ret(0); |
| 1576 | |
| 1577 | CodeDesc desc; |
| 1578 | masm->GetCode(&desc); |
| 1579 | // Call the function from C++. |
| 1580 | int result = FUNCTION_CAST<F0>(buffer)(); |
| 1581 | CHECK_EQ(0, result); |
| 1582 | } |
| 1583 | |
| 1584 | |
| 1585 | void TestSmiXor(MacroAssembler* masm, Label* exit, int id, int x, int y) { |
| 1586 | int result = x ^ y; |
| 1587 | |
| 1588 | __ movl(rax, Immediate(id)); |
| 1589 | |
| 1590 | __ Move(rcx, Smi::FromInt(x)); |
| 1591 | __ movq(r11, rcx); |
| 1592 | __ Move(rdx, Smi::FromInt(y)); |
| 1593 | __ Move(r8, Smi::FromInt(result)); |
| 1594 | __ SmiXor(r9, rcx, rdx); |
| 1595 | __ SmiCompare(r8, r9); |
| 1596 | __ j(not_equal, exit); |
| 1597 | |
| 1598 | __ incq(rax); |
| 1599 | __ SmiCompare(r11, rcx); |
| 1600 | __ j(not_equal, exit); |
| 1601 | |
| 1602 | __ incq(rax); |
| 1603 | __ SmiXor(rcx, rcx, rdx); |
| 1604 | __ SmiCompare(r8, rcx); |
| 1605 | __ j(not_equal, exit); |
| 1606 | |
| 1607 | __ movq(rcx, r11); |
| 1608 | __ incq(rax); |
| 1609 | __ SmiXorConstant(r9, rcx, Smi::FromInt(y)); |
| 1610 | __ SmiCompare(r8, r9); |
| 1611 | __ j(not_equal, exit); |
| 1612 | |
| 1613 | __ incq(rax); |
| 1614 | __ SmiCompare(r11, rcx); |
| 1615 | __ j(not_equal, exit); |
| 1616 | |
| 1617 | __ incq(rax); |
| 1618 | __ SmiXorConstant(rcx, rcx, Smi::FromInt(y)); |
| 1619 | __ SmiCompare(r8, rcx); |
| 1620 | __ j(not_equal, exit); |
| 1621 | } |
| 1622 | |
| 1623 | |
| 1624 | TEST(SmiXor) { |
| 1625 | // Allocate an executable page of memory. |
| 1626 | size_t actual_size; |
| 1627 | byte* buffer = |
| 1628 | static_cast<byte*>(OS::Allocate(Assembler::kMinimalBufferSize, |
| 1629 | &actual_size, |
| 1630 | true)); |
| 1631 | CHECK(buffer); |
| 1632 | HandleScope handles; |
| 1633 | MacroAssembler assembler(buffer, actual_size); |
| 1634 | |
| 1635 | MacroAssembler* masm = &assembler; |
| 1636 | masm->set_allow_stub_calls(false); |
| 1637 | Label exit; |
| 1638 | |
| 1639 | TestSmiXor(masm, &exit, 0x10, 0, 0); |
| 1640 | TestSmiXor(masm, &exit, 0x20, 0, 1); |
| 1641 | TestSmiXor(masm, &exit, 0x30, 1, 0); |
| 1642 | TestSmiXor(masm, &exit, 0x40, 0, -1); |
| 1643 | TestSmiXor(masm, &exit, 0x50, -1, 0); |
| 1644 | TestSmiXor(masm, &exit, 0x60, -1, -1); |
| 1645 | TestSmiXor(masm, &exit, 0x70, 1, 1); |
| 1646 | TestSmiXor(masm, &exit, 0x80, Smi::kMinValue, Smi::kMaxValue); |
| 1647 | TestSmiXor(masm, &exit, 0x90, Smi::kMinValue, Smi::kMinValue); |
| 1648 | TestSmiXor(masm, &exit, 0xA0, Smi::kMinValue, -1); |
| 1649 | TestSmiXor(masm, &exit, 0xB0, 0x5555555, 0x01234567); |
| 1650 | TestSmiXor(masm, &exit, 0xC0, 0x5555555, 0x0fedcba9); |
| 1651 | TestSmiXor(masm, &exit, 0xD0, Smi::kMinValue, -1); |
| 1652 | |
| 1653 | __ xor_(rax, rax); // Success. |
| 1654 | __ bind(&exit); |
| 1655 | __ ret(0); |
| 1656 | |
| 1657 | CodeDesc desc; |
| 1658 | masm->GetCode(&desc); |
| 1659 | // Call the function from C++. |
| 1660 | int result = FUNCTION_CAST<F0>(buffer)(); |
| 1661 | CHECK_EQ(0, result); |
| 1662 | } |
| 1663 | |
| 1664 | |
| 1665 | void TestSmiNot(MacroAssembler* masm, Label* exit, int id, int x) { |
| 1666 | int result = ~x; |
| 1667 | __ movl(rax, Immediate(id)); |
| 1668 | |
| 1669 | __ Move(r8, Smi::FromInt(result)); |
| 1670 | __ Move(rcx, Smi::FromInt(x)); |
| 1671 | __ movq(r11, rcx); |
| 1672 | |
| 1673 | __ SmiNot(r9, rcx); |
| 1674 | __ SmiCompare(r9, r8); |
| 1675 | __ j(not_equal, exit); |
| 1676 | |
| 1677 | __ incq(rax); |
| 1678 | __ SmiCompare(r11, rcx); |
| 1679 | __ j(not_equal, exit); |
| 1680 | |
| 1681 | __ incq(rax); |
| 1682 | __ SmiNot(rcx, rcx); |
| 1683 | __ SmiCompare(rcx, r8); |
| 1684 | __ j(not_equal, exit); |
| 1685 | } |
| 1686 | |
| 1687 | |
| 1688 | TEST(SmiNot) { |
| 1689 | // Allocate an executable page of memory. |
| 1690 | size_t actual_size; |
| 1691 | byte* buffer = |
| 1692 | static_cast<byte*>(OS::Allocate(Assembler::kMinimalBufferSize, |
| 1693 | &actual_size, |
| 1694 | true)); |
| 1695 | CHECK(buffer); |
| 1696 | HandleScope handles; |
| 1697 | MacroAssembler assembler(buffer, actual_size); |
| 1698 | |
| 1699 | MacroAssembler* masm = &assembler; |
| 1700 | masm->set_allow_stub_calls(false); |
| 1701 | Label exit; |
| 1702 | |
| 1703 | TestSmiNot(masm, &exit, 0x10, 0); |
| 1704 | TestSmiNot(masm, &exit, 0x20, 1); |
| 1705 | TestSmiNot(masm, &exit, 0x30, -1); |
| 1706 | TestSmiNot(masm, &exit, 0x40, 127); |
| 1707 | TestSmiNot(masm, &exit, 0x50, 65535); |
| 1708 | TestSmiNot(masm, &exit, 0x60, Smi::kMinValue); |
| 1709 | TestSmiNot(masm, &exit, 0x70, Smi::kMaxValue); |
| 1710 | TestSmiNot(masm, &exit, 0x80, 0x05555555); |
| 1711 | |
| 1712 | __ xor_(rax, rax); // Success. |
| 1713 | __ bind(&exit); |
| 1714 | __ ret(0); |
| 1715 | |
| 1716 | CodeDesc desc; |
| 1717 | masm->GetCode(&desc); |
| 1718 | // Call the function from C++. |
| 1719 | int result = FUNCTION_CAST<F0>(buffer)(); |
| 1720 | CHECK_EQ(0, result); |
| 1721 | } |
| 1722 | |
| 1723 | |
| 1724 | void TestSmiShiftLeft(MacroAssembler* masm, Label* exit, int id, int x) { |
| 1725 | const int shifts[] = { 0, 1, 7, 24, kSmiValueSize - 1}; |
| 1726 | const int kNumShifts = 5; |
| 1727 | __ movl(rax, Immediate(id)); |
| 1728 | for (int i = 0; i < kNumShifts; i++) { |
| 1729 | // rax == id + i * 10. |
| 1730 | int shift = shifts[i]; |
| 1731 | int result = x << shift; |
| 1732 | if (Smi::IsValid(result)) { |
| 1733 | __ Move(r8, Smi::FromInt(result)); |
| 1734 | __ Move(rcx, Smi::FromInt(x)); |
| 1735 | __ SmiShiftLeftConstant(r9, rcx, shift, exit); |
| 1736 | |
| 1737 | __ incq(rax); |
| 1738 | __ SmiCompare(r9, r8); |
| 1739 | __ j(not_equal, exit); |
| 1740 | |
| 1741 | __ incq(rax); |
| 1742 | __ Move(rcx, Smi::FromInt(x)); |
| 1743 | __ SmiShiftLeftConstant(rcx, rcx, shift, exit); |
| 1744 | |
| 1745 | __ incq(rax); |
| 1746 | __ SmiCompare(rcx, r8); |
| 1747 | __ j(not_equal, exit); |
| 1748 | |
| 1749 | __ incq(rax); |
| 1750 | __ Move(rdx, Smi::FromInt(x)); |
| 1751 | __ Move(rcx, Smi::FromInt(shift)); |
| 1752 | __ SmiShiftLeft(r9, rdx, rcx, exit); |
| 1753 | |
| 1754 | __ incq(rax); |
| 1755 | __ SmiCompare(r9, r8); |
| 1756 | __ j(not_equal, exit); |
| 1757 | |
| 1758 | __ incq(rax); |
| 1759 | __ Move(rdx, Smi::FromInt(x)); |
| 1760 | __ Move(r11, Smi::FromInt(shift)); |
| 1761 | __ SmiShiftLeft(r9, rdx, r11, exit); |
| 1762 | |
| 1763 | __ incq(rax); |
| 1764 | __ SmiCompare(r9, r8); |
| 1765 | __ j(not_equal, exit); |
| 1766 | |
| 1767 | __ incq(rax); |
| 1768 | __ Move(rdx, Smi::FromInt(x)); |
| 1769 | __ Move(r11, Smi::FromInt(shift)); |
| 1770 | __ SmiShiftLeft(rdx, rdx, r11, exit); |
| 1771 | |
| 1772 | __ incq(rax); |
| 1773 | __ SmiCompare(rdx, r8); |
| 1774 | __ j(not_equal, exit); |
| 1775 | |
| 1776 | __ incq(rax); |
| 1777 | } else { |
| 1778 | // Cannot happen with long smis. |
| 1779 | Label fail_ok; |
| 1780 | __ Move(rcx, Smi::FromInt(x)); |
| 1781 | __ movq(r11, rcx); |
| 1782 | __ SmiShiftLeftConstant(r9, rcx, shift, &fail_ok); |
| 1783 | __ jmp(exit); |
| 1784 | __ bind(&fail_ok); |
| 1785 | |
| 1786 | __ incq(rax); |
| 1787 | __ SmiCompare(rcx, r11); |
| 1788 | __ j(not_equal, exit); |
| 1789 | |
| 1790 | __ incq(rax); |
| 1791 | Label fail_ok2; |
| 1792 | __ SmiShiftLeftConstant(rcx, rcx, shift, &fail_ok2); |
| 1793 | __ jmp(exit); |
| 1794 | __ bind(&fail_ok2); |
| 1795 | |
| 1796 | __ incq(rax); |
| 1797 | __ SmiCompare(rcx, r11); |
| 1798 | __ j(not_equal, exit); |
| 1799 | |
| 1800 | __ incq(rax); |
| 1801 | __ Move(r8, Smi::FromInt(shift)); |
| 1802 | Label fail_ok3; |
| 1803 | __ SmiShiftLeft(r9, rcx, r8, &fail_ok3); |
| 1804 | __ jmp(exit); |
| 1805 | __ bind(&fail_ok3); |
| 1806 | |
| 1807 | __ incq(rax); |
| 1808 | __ SmiCompare(rcx, r11); |
| 1809 | __ j(not_equal, exit); |
| 1810 | |
| 1811 | __ incq(rax); |
| 1812 | __ Move(r8, Smi::FromInt(shift)); |
| 1813 | __ movq(rdx, r11); |
| 1814 | Label fail_ok4; |
| 1815 | __ SmiShiftLeft(rdx, rdx, r8, &fail_ok4); |
| 1816 | __ jmp(exit); |
| 1817 | __ bind(&fail_ok4); |
| 1818 | |
| 1819 | __ incq(rax); |
| 1820 | __ SmiCompare(rdx, r11); |
| 1821 | __ j(not_equal, exit); |
| 1822 | |
| 1823 | __ addq(rax, Immediate(3)); |
| 1824 | } |
| 1825 | } |
| 1826 | } |
| 1827 | |
| 1828 | |
| 1829 | TEST(SmiShiftLeft) { |
| 1830 | // Allocate an executable page of memory. |
| 1831 | size_t actual_size; |
| 1832 | byte* buffer = |
| 1833 | static_cast<byte*>(OS::Allocate(Assembler::kMinimalBufferSize * 3, |
| 1834 | &actual_size, |
| 1835 | true)); |
| 1836 | CHECK(buffer); |
| 1837 | HandleScope handles; |
| 1838 | MacroAssembler assembler(buffer, actual_size); |
| 1839 | |
| 1840 | MacroAssembler* masm = &assembler; |
| 1841 | masm->set_allow_stub_calls(false); |
| 1842 | Label exit; |
| 1843 | |
| 1844 | TestSmiShiftLeft(masm, &exit, 0x10, 0); |
| 1845 | TestSmiShiftLeft(masm, &exit, 0x50, 1); |
| 1846 | TestSmiShiftLeft(masm, &exit, 0x90, 127); |
| 1847 | TestSmiShiftLeft(masm, &exit, 0xD0, 65535); |
| 1848 | TestSmiShiftLeft(masm, &exit, 0x110, Smi::kMaxValue); |
| 1849 | TestSmiShiftLeft(masm, &exit, 0x150, Smi::kMinValue); |
| 1850 | TestSmiShiftLeft(masm, &exit, 0x190, -1); |
| 1851 | |
| 1852 | __ xor_(rax, rax); // Success. |
| 1853 | __ bind(&exit); |
| 1854 | __ ret(0); |
| 1855 | |
| 1856 | CodeDesc desc; |
| 1857 | masm->GetCode(&desc); |
| 1858 | // Call the function from C++. |
| 1859 | int result = FUNCTION_CAST<F0>(buffer)(); |
| 1860 | CHECK_EQ(0, result); |
| 1861 | } |
| 1862 | |
| 1863 | |
| 1864 | void TestSmiShiftLogicalRight(MacroAssembler* masm, |
| 1865 | Label* exit, |
| 1866 | int id, |
| 1867 | int x) { |
| 1868 | const int shifts[] = { 0, 1, 7, 24, kSmiValueSize - 1}; |
| 1869 | const int kNumShifts = 5; |
| 1870 | __ movl(rax, Immediate(id)); |
| 1871 | for (int i = 0; i < kNumShifts; i++) { |
| 1872 | int shift = shifts[i]; |
| 1873 | intptr_t result = static_cast<unsigned int>(x) >> shift; |
| 1874 | if (Smi::IsValid(result)) { |
| 1875 | __ Move(r8, Smi::FromInt(result)); |
| 1876 | __ Move(rcx, Smi::FromInt(x)); |
| 1877 | __ SmiShiftLogicalRightConstant(r9, rcx, shift, exit); |
| 1878 | |
| 1879 | __ incq(rax); |
| 1880 | __ SmiCompare(r9, r8); |
| 1881 | __ j(not_equal, exit); |
| 1882 | |
| 1883 | __ incq(rax); |
| 1884 | __ Move(rdx, Smi::FromInt(x)); |
| 1885 | __ Move(rcx, Smi::FromInt(shift)); |
| 1886 | __ SmiShiftLogicalRight(r9, rdx, rcx, exit); |
| 1887 | |
| 1888 | __ incq(rax); |
| 1889 | __ SmiCompare(r9, r8); |
| 1890 | __ j(not_equal, exit); |
| 1891 | |
| 1892 | __ incq(rax); |
| 1893 | __ Move(rdx, Smi::FromInt(x)); |
| 1894 | __ Move(r11, Smi::FromInt(shift)); |
| 1895 | __ SmiShiftLogicalRight(r9, rdx, r11, exit); |
| 1896 | |
| 1897 | __ incq(rax); |
| 1898 | __ SmiCompare(r9, r8); |
| 1899 | __ j(not_equal, exit); |
| 1900 | |
| 1901 | __ incq(rax); |
| 1902 | } else { |
| 1903 | // Cannot happen with long smis. |
| 1904 | Label fail_ok; |
| 1905 | __ Move(rcx, Smi::FromInt(x)); |
| 1906 | __ movq(r11, rcx); |
| 1907 | __ SmiShiftLogicalRightConstant(r9, rcx, shift, &fail_ok); |
| 1908 | __ jmp(exit); |
| 1909 | __ bind(&fail_ok); |
| 1910 | |
| 1911 | __ incq(rax); |
| 1912 | __ SmiCompare(rcx, r11); |
| 1913 | __ j(not_equal, exit); |
| 1914 | |
| 1915 | __ incq(rax); |
| 1916 | __ Move(r8, Smi::FromInt(shift)); |
| 1917 | Label fail_ok3; |
| 1918 | __ SmiShiftLogicalRight(r9, rcx, r8, &fail_ok3); |
| 1919 | __ jmp(exit); |
| 1920 | __ bind(&fail_ok3); |
| 1921 | |
| 1922 | __ incq(rax); |
| 1923 | __ SmiCompare(rcx, r11); |
| 1924 | __ j(not_equal, exit); |
| 1925 | |
| 1926 | __ addq(rax, Immediate(3)); |
| 1927 | } |
| 1928 | } |
| 1929 | } |
| 1930 | |
| 1931 | |
| 1932 | TEST(SmiShiftLogicalRight) { |
| 1933 | // Allocate an executable page of memory. |
| 1934 | size_t actual_size; |
| 1935 | byte* buffer = |
| 1936 | static_cast<byte*>(OS::Allocate(Assembler::kMinimalBufferSize * 2, |
| 1937 | &actual_size, |
| 1938 | true)); |
| 1939 | CHECK(buffer); |
| 1940 | HandleScope handles; |
| 1941 | MacroAssembler assembler(buffer, actual_size); |
| 1942 | |
| 1943 | MacroAssembler* masm = &assembler; |
| 1944 | masm->set_allow_stub_calls(false); |
| 1945 | Label exit; |
| 1946 | |
| 1947 | TestSmiShiftLogicalRight(masm, &exit, 0x10, 0); |
| 1948 | TestSmiShiftLogicalRight(masm, &exit, 0x30, 1); |
| 1949 | TestSmiShiftLogicalRight(masm, &exit, 0x50, 127); |
| 1950 | TestSmiShiftLogicalRight(masm, &exit, 0x70, 65535); |
| 1951 | TestSmiShiftLogicalRight(masm, &exit, 0x90, Smi::kMaxValue); |
| 1952 | TestSmiShiftLogicalRight(masm, &exit, 0xB0, Smi::kMinValue); |
| 1953 | TestSmiShiftLogicalRight(masm, &exit, 0xD0, -1); |
| 1954 | |
| 1955 | __ xor_(rax, rax); // Success. |
| 1956 | __ bind(&exit); |
| 1957 | __ ret(0); |
| 1958 | |
| 1959 | CodeDesc desc; |
| 1960 | masm->GetCode(&desc); |
| 1961 | // Call the function from C++. |
| 1962 | int result = FUNCTION_CAST<F0>(buffer)(); |
| 1963 | CHECK_EQ(0, result); |
| 1964 | } |
| 1965 | |
| 1966 | |
| 1967 | void TestSmiShiftArithmeticRight(MacroAssembler* masm, |
| 1968 | Label* exit, |
| 1969 | int id, |
| 1970 | int x) { |
| 1971 | const int shifts[] = { 0, 1, 7, 24, kSmiValueSize - 1}; |
| 1972 | const int kNumShifts = 5; |
| 1973 | __ movl(rax, Immediate(id)); |
| 1974 | for (int i = 0; i < kNumShifts; i++) { |
| 1975 | int shift = shifts[i]; |
| 1976 | // Guaranteed arithmetic shift. |
| 1977 | int result = (x < 0) ? ~((~x) >> shift) : (x >> shift); |
| 1978 | __ Move(r8, Smi::FromInt(result)); |
| 1979 | __ Move(rcx, Smi::FromInt(x)); |
| 1980 | __ SmiShiftArithmeticRightConstant(rcx, rcx, shift); |
| 1981 | |
| 1982 | __ SmiCompare(rcx, r8); |
| 1983 | __ j(not_equal, exit); |
| 1984 | |
| 1985 | __ incq(rax); |
| 1986 | __ Move(rdx, Smi::FromInt(x)); |
| 1987 | __ Move(r11, Smi::FromInt(shift)); |
| 1988 | __ SmiShiftArithmeticRight(rdx, rdx, r11); |
| 1989 | |
| 1990 | __ SmiCompare(rdx, r8); |
| 1991 | __ j(not_equal, exit); |
| 1992 | |
| 1993 | __ incq(rax); |
| 1994 | } |
| 1995 | } |
| 1996 | |
| 1997 | |
| 1998 | TEST(SmiShiftArithmeticRight) { |
| 1999 | // Allocate an executable page of memory. |
| 2000 | size_t actual_size; |
| 2001 | byte* buffer = |
| 2002 | static_cast<byte*>(OS::Allocate(Assembler::kMinimalBufferSize * 2, |
| 2003 | &actual_size, |
| 2004 | true)); |
| 2005 | CHECK(buffer); |
| 2006 | HandleScope handles; |
| 2007 | MacroAssembler assembler(buffer, actual_size); |
| 2008 | |
| 2009 | MacroAssembler* masm = &assembler; |
| 2010 | masm->set_allow_stub_calls(false); |
| 2011 | Label exit; |
| 2012 | |
| 2013 | TestSmiShiftArithmeticRight(masm, &exit, 0x10, 0); |
| 2014 | TestSmiShiftArithmeticRight(masm, &exit, 0x20, 1); |
| 2015 | TestSmiShiftArithmeticRight(masm, &exit, 0x30, 127); |
| 2016 | TestSmiShiftArithmeticRight(masm, &exit, 0x40, 65535); |
| 2017 | TestSmiShiftArithmeticRight(masm, &exit, 0x50, Smi::kMaxValue); |
| 2018 | TestSmiShiftArithmeticRight(masm, &exit, 0x60, Smi::kMinValue); |
| 2019 | TestSmiShiftArithmeticRight(masm, &exit, 0x70, -1); |
| 2020 | |
| 2021 | __ xor_(rax, rax); // Success. |
| 2022 | __ bind(&exit); |
| 2023 | __ ret(0); |
| 2024 | |
| 2025 | CodeDesc desc; |
| 2026 | masm->GetCode(&desc); |
| 2027 | // Call the function from C++. |
| 2028 | int result = FUNCTION_CAST<F0>(buffer)(); |
| 2029 | CHECK_EQ(0, result); |
| 2030 | } |
| 2031 | |
| 2032 | |
| 2033 | void TestPositiveSmiPowerUp(MacroAssembler* masm, Label* exit, int id, int x) { |
| 2034 | ASSERT(x >= 0); |
| 2035 | int powers[] = { 0, 1, 2, 3, 8, 16, 24, 31 }; |
| 2036 | int power_count = 8; |
| 2037 | __ movl(rax, Immediate(id)); |
| 2038 | for (int i = 0; i < power_count; i++) { |
| 2039 | int power = powers[i]; |
| 2040 | intptr_t result = static_cast<intptr_t>(x) << power; |
| 2041 | __ Set(r8, result); |
| 2042 | __ Move(rcx, Smi::FromInt(x)); |
| 2043 | __ movq(r11, rcx); |
| 2044 | __ PositiveSmiTimesPowerOfTwoToInteger64(rdx, rcx, power); |
| 2045 | __ SmiCompare(rdx, r8); |
| 2046 | __ j(not_equal, exit); |
| 2047 | __ incq(rax); |
| 2048 | __ SmiCompare(r11, rcx); // rcx unchanged. |
| 2049 | __ j(not_equal, exit); |
| 2050 | __ incq(rax); |
| 2051 | __ PositiveSmiTimesPowerOfTwoToInteger64(rcx, rcx, power); |
| 2052 | __ SmiCompare(rdx, r8); |
| 2053 | __ j(not_equal, exit); |
| 2054 | __ incq(rax); |
| 2055 | } |
| 2056 | } |
| 2057 | |
| 2058 | |
| 2059 | TEST(PositiveSmiTimesPowerOfTwoToInteger64) { |
| 2060 | // Allocate an executable page of memory. |
| 2061 | size_t actual_size; |
| 2062 | byte* buffer = |
| 2063 | static_cast<byte*>(OS::Allocate(Assembler::kMinimalBufferSize * 2, |
| 2064 | &actual_size, |
| 2065 | true)); |
| 2066 | CHECK(buffer); |
| 2067 | HandleScope handles; |
| 2068 | MacroAssembler assembler(buffer, actual_size); |
| 2069 | |
| 2070 | MacroAssembler* masm = &assembler; |
| 2071 | masm->set_allow_stub_calls(false); |
| 2072 | Label exit; |
| 2073 | |
| 2074 | TestPositiveSmiPowerUp(masm, &exit, 0x20, 0); |
| 2075 | TestPositiveSmiPowerUp(masm, &exit, 0x40, 1); |
| 2076 | TestPositiveSmiPowerUp(masm, &exit, 0x60, 127); |
| 2077 | TestPositiveSmiPowerUp(masm, &exit, 0x80, 128); |
| 2078 | TestPositiveSmiPowerUp(masm, &exit, 0xA0, 255); |
| 2079 | TestPositiveSmiPowerUp(masm, &exit, 0xC0, 256); |
| 2080 | TestPositiveSmiPowerUp(masm, &exit, 0x100, 65535); |
| 2081 | TestPositiveSmiPowerUp(masm, &exit, 0x120, 65536); |
| 2082 | TestPositiveSmiPowerUp(masm, &exit, 0x140, Smi::kMaxValue); |
| 2083 | |
| 2084 | __ xor_(rax, rax); // Success. |
| 2085 | __ bind(&exit); |
| 2086 | __ ret(0); |
| 2087 | |
| 2088 | CodeDesc desc; |
| 2089 | masm->GetCode(&desc); |
| 2090 | // Call the function from C++. |
| 2091 | int result = FUNCTION_CAST<F0>(buffer)(); |
| 2092 | CHECK_EQ(0, result); |
| 2093 | } |
| 2094 | |
| 2095 | |
| 2096 | #undef __ |