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Issue 24072013: Hydrogenisation of binops (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: fix rewrite mode & finetune type feedback Created 7 years, 2 months ago
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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 fld(0);
256 fist_s(MemOperand(esp, 0)); 257 fist_s(MemOperand(esp, 0));
257 fld(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());
456 Label done; 457 Label done;
457 cmp(src, Immediate(0)); 458 cmp(src, Immediate(0));
458 movdbl(scratch, 459 movdbl(scratch,
459 Operand(reinterpret_cast<int32_t>(&kUint32Bias), RelocInfo::NONE32)); 460 Operand(reinterpret_cast<int32_t>(&kUint32Bias), RelocInfo::NONE32));
460 Cvtsi2sd(dst, src); 461 Cvtsi2sd(dst, src);
461 j(not_sign, &done, Label::kNear); 462 j(not_sign, &done, Label::kNear);
462 addsd(dst, scratch); 463 addsd(dst, scratch);
463 bind(&done); 464 bind(&done);
464 } 465 }
465 466
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3513 j(greater, &no_memento_available); 3514 j(greater, &no_memento_available);
3514 cmp(MemOperand(scratch_reg, -AllocationMemento::kSize), 3515 cmp(MemOperand(scratch_reg, -AllocationMemento::kSize),
3515 Immediate(isolate()->factory()->allocation_memento_map())); 3516 Immediate(isolate()->factory()->allocation_memento_map()));
3516 bind(&no_memento_available); 3517 bind(&no_memento_available);
3517 } 3518 }
3518 3519
3519 3520
3520 } } // namespace v8::internal 3521 } } // namespace v8::internal
3521 3522
3522 #endif // V8_TARGET_ARCH_IA32 3523 #endif // V8_TARGET_ARCH_IA32
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