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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 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #if V8_TARGET_ARCH_X64 | 5 #if V8_TARGET_ARCH_X64 |
6 | 6 |
7 #include "src/code-factory.h" | 7 #include "src/code-factory.h" |
8 #include "src/codegen.h" | 8 #include "src/codegen.h" |
9 #include "src/deoptimizer.h" | 9 #include "src/deoptimizer.h" |
10 #include "src/full-codegen/full-codegen.h" | 10 #include "src/full-codegen/full-codegen.h" |
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1613 __ LoadRoot(rbx, Heap::kUndefinedValueRootIndex); | 1613 __ LoadRoot(rbx, Heap::kUndefinedValueRootIndex); |
1614 ArrayConstructorStub stub(masm->isolate()); | 1614 ArrayConstructorStub stub(masm->isolate()); |
1615 __ TailCallStub(&stub); | 1615 __ TailCallStub(&stub); |
1616 } | 1616 } |
1617 | 1617 |
1618 | 1618 |
1619 // static | 1619 // static |
1620 void Builtins::Generate_MathMaxMin(MacroAssembler* masm, MathMaxMinKind kind) { | 1620 void Builtins::Generate_MathMaxMin(MacroAssembler* masm, MathMaxMinKind kind) { |
1621 // ----------- S t a t e ------------- | 1621 // ----------- S t a t e ------------- |
1622 // -- rax : number of arguments | 1622 // -- rax : number of arguments |
| 1623 // -- rdi : function |
| 1624 // -- rsi : context |
1623 // -- rsp[0] : return address | 1625 // -- rsp[0] : return address |
1624 // -- rsp[(argc - n) * 8] : arg[n] (zero-based) | 1626 // -- rsp[(argc - n) * 8] : arg[n] (zero-based) |
1625 // -- rsp[(argc + 1) * 8] : receiver | 1627 // -- rsp[(argc + 1) * 8] : receiver |
1626 // ----------------------------------- | 1628 // ----------------------------------- |
1627 Condition const cc = (kind == MathMaxMinKind::kMin) ? below : above; | 1629 Condition const cc = (kind == MathMaxMinKind::kMin) ? below : above; |
1628 Heap::RootListIndex const root_index = | 1630 Heap::RootListIndex const root_index = |
1629 (kind == MathMaxMinKind::kMin) ? Heap::kInfinityValueRootIndex | 1631 (kind == MathMaxMinKind::kMin) ? Heap::kInfinityValueRootIndex |
1630 : Heap::kMinusInfinityValueRootIndex; | 1632 : Heap::kMinusInfinityValueRootIndex; |
1631 XMMRegister const reg = (kind == MathMaxMinKind::kMin) ? xmm1 : xmm0; | 1633 XMMRegister const reg = (kind == MathMaxMinKind::kMin) ? xmm1 : xmm0; |
1632 | 1634 |
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1648 | 1650 |
1649 // Load the double value of the parameter into xmm1, maybe converting the | 1651 // Load the double value of the parameter into xmm1, maybe converting the |
1650 // parameter to a number first using the ToNumberStub if necessary. | 1652 // parameter to a number first using the ToNumberStub if necessary. |
1651 Label convert, convert_smi, convert_number, done_convert; | 1653 Label convert, convert_smi, convert_number, done_convert; |
1652 __ bind(&convert); | 1654 __ bind(&convert); |
1653 __ JumpIfSmi(rbx, &convert_smi); | 1655 __ JumpIfSmi(rbx, &convert_smi); |
1654 __ JumpIfRoot(FieldOperand(rbx, HeapObject::kMapOffset), | 1656 __ JumpIfRoot(FieldOperand(rbx, HeapObject::kMapOffset), |
1655 Heap::kHeapNumberMapRootIndex, &convert_number); | 1657 Heap::kHeapNumberMapRootIndex, &convert_number); |
1656 { | 1658 { |
1657 // Parameter is not a Number, use the ToNumberStub to convert it. | 1659 // Parameter is not a Number, use the ToNumberStub to convert it. |
1658 FrameScope scope(masm, StackFrame::INTERNAL); | 1660 FrameScope scope(masm, StackFrame::MANUAL); |
| 1661 __ Push(rbp); |
| 1662 __ Move(rbp, rsp); |
| 1663 __ Push(rsi); |
| 1664 __ Push(rdi); |
1659 __ Integer32ToSmi(rax, rax); | 1665 __ Integer32ToSmi(rax, rax); |
1660 __ Integer32ToSmi(rcx, rcx); | 1666 __ Integer32ToSmi(rcx, rcx); |
1661 __ Push(rax); | 1667 __ Push(rax); |
1662 __ Push(rcx); | 1668 __ Push(rcx); |
1663 __ Push(rdx); | 1669 __ Push(rdx); |
1664 __ movp(rax, rbx); | 1670 __ movp(rax, rbx); |
1665 ToNumberStub stub(masm->isolate()); | 1671 ToNumberStub stub(masm->isolate()); |
1666 __ CallStub(&stub); | 1672 __ CallStub(&stub); |
1667 __ movp(rbx, rax); | 1673 __ movp(rbx, rax); |
1668 __ Pop(rdx); | 1674 __ Pop(rdx); |
1669 __ Pop(rcx); | 1675 __ Pop(rcx); |
1670 __ Pop(rax); | 1676 __ Pop(rax); |
| 1677 __ Pop(rdi); |
| 1678 __ Pop(rsi); |
1671 { | 1679 { |
1672 // Restore the double accumulator value (xmm0). | 1680 // Restore the double accumulator value (xmm0). |
1673 Label restore_smi, done_restore; | 1681 Label restore_smi, done_restore; |
1674 __ JumpIfSmi(rdx, &restore_smi, Label::kNear); | 1682 __ JumpIfSmi(rdx, &restore_smi, Label::kNear); |
1675 __ Movsd(xmm0, FieldOperand(rdx, HeapNumber::kValueOffset)); | 1683 __ Movsd(xmm0, FieldOperand(rdx, HeapNumber::kValueOffset)); |
1676 __ jmp(&done_restore, Label::kNear); | 1684 __ jmp(&done_restore, Label::kNear); |
1677 __ bind(&restore_smi); | 1685 __ bind(&restore_smi); |
1678 __ SmiToDouble(xmm0, rdx); | 1686 __ SmiToDouble(xmm0, rdx); |
1679 __ bind(&done_restore); | 1687 __ bind(&done_restore); |
1680 } | 1688 } |
1681 __ SmiToInteger32(rcx, rcx); | 1689 __ SmiToInteger32(rcx, rcx); |
1682 __ SmiToInteger32(rax, rax); | 1690 __ SmiToInteger32(rax, rax); |
| 1691 __ leave(); |
1683 } | 1692 } |
1684 __ jmp(&convert); | 1693 __ jmp(&convert); |
1685 __ bind(&convert_number); | 1694 __ bind(&convert_number); |
1686 __ Movsd(xmm1, FieldOperand(rbx, HeapNumber::kValueOffset)); | 1695 __ Movsd(xmm1, FieldOperand(rbx, HeapNumber::kValueOffset)); |
1687 __ jmp(&done_convert, Label::kNear); | 1696 __ jmp(&done_convert, Label::kNear); |
1688 __ bind(&convert_smi); | 1697 __ bind(&convert_smi); |
1689 __ SmiToDouble(xmm1, rbx); | 1698 __ SmiToDouble(xmm1, rbx); |
1690 __ bind(&done_convert); | 1699 __ bind(&done_convert); |
1691 | 1700 |
1692 // Perform the actual comparison with the accumulator value on the left hand | 1701 // Perform the actual comparison with the accumulator value on the left hand |
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2917 __ ret(0); | 2926 __ ret(0); |
2918 } | 2927 } |
2919 | 2928 |
2920 | 2929 |
2921 #undef __ | 2930 #undef __ |
2922 | 2931 |
2923 } // namespace internal | 2932 } // namespace internal |
2924 } // namespace v8 | 2933 } // namespace v8 |
2925 | 2934 |
2926 #endif // V8_TARGET_ARCH_X64 | 2935 #endif // V8_TARGET_ARCH_X64 |
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