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| 1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
| 2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
| 3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
| 4 // met: | 4 // met: |
| 5 // | 5 // |
| 6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
| 7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
| 8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
| 9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
| 10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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| 246 add(esp, Immediate(kDoubleSize)); | 246 add(esp, Immediate(kDoubleSize)); |
| 247 } | 247 } |
| 248 | 248 |
| 249 | 249 |
| 250 void MacroAssembler::X87TOSToI(Register result_reg, | 250 void MacroAssembler::X87TOSToI(Register result_reg, |
| 251 MinusZeroMode minus_zero_mode, | 251 MinusZeroMode minus_zero_mode, |
| 252 Label* conversion_failed, | 252 Label* conversion_failed, |
| 253 Label::Distance dst) { | 253 Label::Distance dst) { |
| 254 Label done; | 254 Label done; |
| 255 sub(esp, Immediate(kPointerSize)); | 255 sub(esp, Immediate(kPointerSize)); |
| 256 fist_s(MemOperand(esp, 0)); |
| 256 fld(0); | 257 fld(0); |
| 257 fist_s(MemOperand(esp, 0)); | |
| 258 fild_s(MemOperand(esp, 0)); | 258 fild_s(MemOperand(esp, 0)); |
| 259 pop(result_reg); | 259 pop(result_reg); |
| 260 FCmp(); | 260 FCmp(); |
| 261 j(not_equal, conversion_failed, dst); | 261 j(not_equal, conversion_failed, dst); |
| 262 j(parity_even, conversion_failed, dst); | 262 j(parity_even, conversion_failed, dst); |
| 263 if (minus_zero_mode == FAIL_ON_MINUS_ZERO) { | 263 if (minus_zero_mode == FAIL_ON_MINUS_ZERO) { |
| 264 test(result_reg, Operand(result_reg)); | 264 test(result_reg, Operand(result_reg)); |
| 265 j(not_zero, &done, Label::kNear); | 265 j(not_zero, &done, Label::kNear); |
| 266 // To check for minus zero, we load the value again as float, and check | 266 // To check for minus zero, we load the value again as float, and check |
| 267 // if that is still 0. | 267 // if that is still 0. |
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| 446 | 446 |
| 447 | 447 |
| 448 | 448 |
| 449 static double kUint32Bias = | 449 static double kUint32Bias = |
| 450 static_cast<double>(static_cast<uint32_t>(0xFFFFFFFF)) + 1; | 450 static_cast<double>(static_cast<uint32_t>(0xFFFFFFFF)) + 1; |
| 451 | 451 |
| 452 | 452 |
| 453 void MacroAssembler::LoadUint32(XMMRegister dst, | 453 void MacroAssembler::LoadUint32(XMMRegister dst, |
| 454 Register src, | 454 Register src, |
| 455 XMMRegister scratch) { | 455 XMMRegister scratch) { |
| 456 ASSERT(!Serializer::enabled()); | |
| 457 Label done; | 456 Label done; |
| 458 cmp(src, Immediate(0)); | 457 cmp(src, Immediate(0)); |
| 459 movdbl(scratch, | 458 movdbl(scratch, |
| 460 Operand(reinterpret_cast<int32_t>(&kUint32Bias), RelocInfo::NONE32)); | 459 Operand(reinterpret_cast<int32_t>(&kUint32Bias), RelocInfo::NONE32)); |
| 461 Cvtsi2sd(dst, src); | 460 Cvtsi2sd(dst, src); |
| 462 j(not_sign, &done, Label::kNear); | 461 j(not_sign, &done, Label::kNear); |
| 463 addsd(dst, scratch); | 462 addsd(dst, scratch); |
| 464 bind(&done); | 463 bind(&done); |
| 465 } | 464 } |
| 466 | 465 |
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| 3514 j(greater, &no_memento_available); | 3513 j(greater, &no_memento_available); |
| 3515 cmp(MemOperand(scratch_reg, -AllocationMemento::kSize), | 3514 cmp(MemOperand(scratch_reg, -AllocationMemento::kSize), |
| 3516 Immediate(isolate()->factory()->allocation_memento_map())); | 3515 Immediate(isolate()->factory()->allocation_memento_map())); |
| 3517 bind(&no_memento_available); | 3516 bind(&no_memento_available); |
| 3518 } | 3517 } |
| 3519 | 3518 |
| 3520 | 3519 |
| 3521 } } // namespace v8::internal | 3520 } } // namespace v8::internal |
| 3522 | 3521 |
| 3523 #endif // V8_TARGET_ARCH_IA32 | 3522 #endif // V8_TARGET_ARCH_IA32 |
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