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Issue 1637163003: X87: [es6] Tail calls support. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Created 4 years, 11 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 // 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_X87 5 #if V8_TARGET_ARCH_X87
6 6
7 #include "src/base/bits.h" 7 #include "src/base/bits.h"
8 #include "src/base/division-by-constant.h" 8 #include "src/base/division-by-constant.h"
9 #include "src/bootstrapper.h" 9 #include "src/bootstrapper.h"
10 #include "src/codegen.h" 10 #include "src/codegen.h"
(...skipping 1716 matching lines...) Expand 10 before | Expand all | Expand 10 after
1727 j(not_zero, &short_loop); 1727 j(not_zero, &short_loop);
1728 1728
1729 bind(&done); 1729 bind(&done);
1730 } 1730 }
1731 1731
1732 1732
1733 void MacroAssembler::InitializeFieldsWithFiller(Register current_address, 1733 void MacroAssembler::InitializeFieldsWithFiller(Register current_address,
1734 Register end_address, 1734 Register end_address,
1735 Register filler) { 1735 Register filler) {
1736 Label loop, entry; 1736 Label loop, entry;
1737 jmp(&entry); 1737 jmp(&entry, Label::kNear);
1738 bind(&loop); 1738 bind(&loop);
1739 mov(Operand(current_address, 0), filler); 1739 mov(Operand(current_address, 0), filler);
1740 add(current_address, Immediate(kPointerSize)); 1740 add(current_address, Immediate(kPointerSize));
1741 bind(&entry); 1741 bind(&entry);
1742 cmp(current_address, end_address); 1742 cmp(current_address, end_address);
1743 j(below, &loop); 1743 j(below, &loop, Label::kNear);
1744 } 1744 }
1745 1745
1746 1746
1747 void MacroAssembler::BooleanBitTest(Register object, 1747 void MacroAssembler::BooleanBitTest(Register object,
1748 int field_offset, 1748 int field_offset,
1749 int bit_index) { 1749 int bit_index) {
1750 bit_index += kSmiTagSize + kSmiShiftSize; 1750 bit_index += kSmiTagSize + kSmiShiftSize;
1751 DCHECK(base::bits::IsPowerOfTwo32(kBitsPerByte)); 1751 DCHECK(base::bits::IsPowerOfTwo32(kBitsPerByte));
1752 int byte_index = bit_index / kBitsPerByte; 1752 int byte_index = bit_index / kBitsPerByte;
1753 int byte_bit_index = bit_index & (kBitsPerByte - 1); 1753 int byte_bit_index = bit_index & (kBitsPerByte - 1);
1754 test_b(FieldOperand(object, field_offset + byte_index), 1754 test_b(FieldOperand(object, field_offset + byte_index),
1755 static_cast<byte>(1 << byte_bit_index)); 1755 static_cast<byte>(1 << byte_bit_index));
1756 } 1756 }
1757 1757
1758 1758
1759 1759
1760 void MacroAssembler::NegativeZeroTest(Register result, 1760 void MacroAssembler::NegativeZeroTest(Register result,
1761 Register op, 1761 Register op,
1762 Label* then_label) { 1762 Label* then_label) {
1763 Label ok; 1763 Label ok;
1764 test(result, result); 1764 test(result, result);
1765 j(not_zero, &ok); 1765 j(not_zero, &ok, Label::kNear);
1766 test(op, op); 1766 test(op, op);
1767 j(sign, then_label); 1767 j(sign, then_label, Label::kNear);
1768 bind(&ok); 1768 bind(&ok);
1769 } 1769 }
1770 1770
1771 1771
1772 void MacroAssembler::NegativeZeroTest(Register result, 1772 void MacroAssembler::NegativeZeroTest(Register result,
1773 Register op1, 1773 Register op1,
1774 Register op2, 1774 Register op2,
1775 Register scratch, 1775 Register scratch,
1776 Label* then_label) { 1776 Label* then_label) {
1777 Label ok; 1777 Label ok;
1778 test(result, result); 1778 test(result, result);
1779 j(not_zero, &ok); 1779 j(not_zero, &ok, Label::kNear);
1780 mov(scratch, op1); 1780 mov(scratch, op1);
1781 or_(scratch, op2); 1781 or_(scratch, op2);
1782 j(sign, then_label); 1782 j(sign, then_label, Label::kNear);
1783 bind(&ok); 1783 bind(&ok);
1784 } 1784 }
1785 1785
1786 1786
1787 void MacroAssembler::GetMapConstructor(Register result, Register map, 1787 void MacroAssembler::GetMapConstructor(Register result, Register map,
1788 Register temp) { 1788 Register temp) {
1789 Label done, loop; 1789 Label done, loop;
1790 mov(result, FieldOperand(map, Map::kConstructorOrBackPointerOffset)); 1790 mov(result, FieldOperand(map, Map::kConstructorOrBackPointerOffset));
1791 bind(&loop); 1791 bind(&loop);
1792 JumpIfSmi(result, &done, Label::kNear); 1792 JumpIfSmi(result, &done, Label::kNear);
(...skipping 1183 matching lines...) Expand 10 before | Expand all | Expand 10 after
2976 mov(eax, dividend); 2976 mov(eax, dividend);
2977 shr(eax, 31); 2977 shr(eax, 31);
2978 add(edx, eax); 2978 add(edx, eax);
2979 } 2979 }
2980 2980
2981 2981
2982 } // namespace internal 2982 } // namespace internal
2983 } // namespace v8 2983 } // namespace v8
2984 2984
2985 #endif // V8_TARGET_ARCH_X87 2985 #endif // V8_TARGET_ARCH_X87
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