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Side by Side Diff: src/x64/lithium-codegen-x64.cc

Issue 7232010: Version 3.4.6 (Closed) Base URL: https://v8.googlecode.com/svn/trunk
Patch Set: Created 9 years, 6 months ago
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1 // Copyright 2011 the V8 project authors. All rights reserved. 1 // Copyright 2011 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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1406 // HeapNumber => false iff +0, -0, or NaN. These three cases set the 1406 // HeapNumber => false iff +0, -0, or NaN. These three cases set the
1407 // zero flag when compared to zero using ucomisd. 1407 // zero flag when compared to zero using ucomisd.
1408 __ xorps(xmm0, xmm0); 1408 __ xorps(xmm0, xmm0);
1409 __ ucomisd(xmm0, FieldOperand(reg, HeapNumber::kValueOffset)); 1409 __ ucomisd(xmm0, FieldOperand(reg, HeapNumber::kValueOffset));
1410 __ j(zero, false_label); 1410 __ j(zero, false_label);
1411 __ jmp(true_label); 1411 __ jmp(true_label);
1412 1412
1413 // The conversion stub doesn't cause garbage collections so it's 1413 // The conversion stub doesn't cause garbage collections so it's
1414 // safe to not record a safepoint after the call. 1414 // safe to not record a safepoint after the call.
1415 __ bind(&call_stub); 1415 __ bind(&call_stub);
1416 ToBooleanStub stub; 1416 ToBooleanStub stub(rax);
1417 __ Pushad(); 1417 __ Pushad();
1418 __ push(reg); 1418 __ push(reg);
1419 __ CallStub(&stub); 1419 __ CallStub(&stub);
1420 __ testq(rax, rax); 1420 __ testq(rax, rax);
1421 __ Popad(); 1421 __ Popad();
1422 EmitBranch(true_block, false_block, not_zero); 1422 EmitBranch(true_block, false_block, not_zero);
1423 } 1423 }
1424 } 1424 }
1425 } 1425 }
1426 1426
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1549 __ j(parity_even, chunk_->GetAssemblyLabel(false_block)); 1549 __ j(parity_even, chunk_->GetAssemblyLabel(false_block));
1550 } else { 1550 } else {
1551 EmitCmpI(left, right); 1551 EmitCmpI(left, right);
1552 } 1552 }
1553 1553
1554 Condition cc = TokenToCondition(instr->op(), instr->is_double()); 1554 Condition cc = TokenToCondition(instr->op(), instr->is_double());
1555 EmitBranch(true_block, false_block, cc); 1555 EmitBranch(true_block, false_block, cc);
1556 } 1556 }
1557 1557
1558 1558
1559 void LCodeGen::DoCmpJSObjectEq(LCmpJSObjectEq* instr) { 1559 void LCodeGen::DoCmpObjectEq(LCmpObjectEq* instr) {
1560 Register left = ToRegister(instr->InputAt(0)); 1560 Register left = ToRegister(instr->InputAt(0));
1561 Register right = ToRegister(instr->InputAt(1)); 1561 Register right = ToRegister(instr->InputAt(1));
1562 Register result = ToRegister(instr->result()); 1562 Register result = ToRegister(instr->result());
1563 1563
1564 Label different, done; 1564 Label different, done;
1565 __ cmpq(left, right); 1565 __ cmpq(left, right);
1566 __ j(not_equal, &different, Label::kNear); 1566 __ j(not_equal, &different, Label::kNear);
1567 __ LoadRoot(result, Heap::kTrueValueRootIndex); 1567 __ LoadRoot(result, Heap::kTrueValueRootIndex);
1568 __ jmp(&done, Label::kNear); 1568 __ jmp(&done, Label::kNear);
1569 __ bind(&different); 1569 __ bind(&different);
1570 __ LoadRoot(result, Heap::kFalseValueRootIndex); 1570 __ LoadRoot(result, Heap::kFalseValueRootIndex);
1571 __ bind(&done); 1571 __ bind(&done);
1572 } 1572 }
1573 1573
1574 1574
1575 void LCodeGen::DoCmpJSObjectEqAndBranch(LCmpJSObjectEqAndBranch* instr) { 1575 void LCodeGen::DoCmpObjectEqAndBranch(LCmpObjectEqAndBranch* instr) {
1576 Register left = ToRegister(instr->InputAt(0)); 1576 Register left = ToRegister(instr->InputAt(0));
1577 Register right = ToRegister(instr->InputAt(1)); 1577 Register right = ToRegister(instr->InputAt(1));
1578 int false_block = chunk_->LookupDestination(instr->false_block_id()); 1578 int false_block = chunk_->LookupDestination(instr->false_block_id());
1579 int true_block = chunk_->LookupDestination(instr->true_block_id());
1580
1581 __ cmpq(left, right);
1582 EmitBranch(true_block, false_block, equal);
1583 }
1584
1585
1586 void LCodeGen::DoCmpSymbolEq(LCmpSymbolEq* instr) {
1587 Register left = ToRegister(instr->InputAt(0));
1588 Register right = ToRegister(instr->InputAt(1));
1589 Register result = ToRegister(instr->result());
1590
1591 Label done;
1592 __ cmpq(left, right);
1593 __ LoadRoot(result, Heap::kFalseValueRootIndex);
1594 __ j(not_equal, &done, Label::kNear);
1595 __ LoadRoot(result, Heap::kTrueValueRootIndex);
1596 __ bind(&done);
1597 }
1598
1599
1600 void LCodeGen::DoCmpSymbolEqAndBranch(LCmpSymbolEqAndBranch* instr) {
1601 Register left = ToRegister(instr->InputAt(0));
1602 Register right = ToRegister(instr->InputAt(1));
1603 int false_block = chunk_->LookupDestination(instr->false_block_id());
1604 int true_block = chunk_->LookupDestination(instr->true_block_id()); 1579 int true_block = chunk_->LookupDestination(instr->true_block_id());
1605 1580
1606 __ cmpq(left, right); 1581 __ cmpq(left, right);
1607 EmitBranch(true_block, false_block, equal); 1582 EmitBranch(true_block, false_block, equal);
1608 } 1583 }
1609 1584
1610 1585
1611 void LCodeGen::DoCmpConstantEq(LCmpConstantEq* instr) { 1586 void LCodeGen::DoCmpConstantEq(LCmpConstantEq* instr) {
1612 Register left = ToRegister(instr->InputAt(0)); 1587 Register left = ToRegister(instr->InputAt(0));
1613 Register result = ToRegister(instr->result()); 1588 Register result = ToRegister(instr->result());
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4316 RegisterEnvironmentForDeoptimization(environment); 4291 RegisterEnvironmentForDeoptimization(environment);
4317 ASSERT(osr_pc_offset_ == -1); 4292 ASSERT(osr_pc_offset_ == -1);
4318 osr_pc_offset_ = masm()->pc_offset(); 4293 osr_pc_offset_ = masm()->pc_offset();
4319 } 4294 }
4320 4295
4321 #undef __ 4296 #undef __
4322 4297
4323 } } // namespace v8::internal 4298 } } // namespace v8::internal
4324 4299
4325 #endif // V8_TARGET_ARCH_X64 4300 #endif // V8_TARGET_ARCH_X64
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