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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 #include <limits.h> // For LONG_MIN, LONG_MAX. | 5 #include <limits.h> // For LONG_MIN, LONG_MAX. |
6 | 6 |
7 #if V8_TARGET_ARCH_MIPS | 7 #if V8_TARGET_ARCH_MIPS |
8 | 8 |
9 #include "src/base/bits.h" | 9 #include "src/base/bits.h" |
10 #include "src/base/division-by-constant.h" | 10 #include "src/base/division-by-constant.h" |
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5904 Addu(fp, sp, Operand(fp_offset)); | 5904 Addu(fp, sp, Operand(fp_offset)); |
5905 } | 5905 } |
5906 | 5906 |
5907 | 5907 |
5908 void MacroAssembler::LeaveFrame(StackFrame::Type type) { | 5908 void MacroAssembler::LeaveFrame(StackFrame::Type type) { |
5909 addiu(sp, fp, 2 * kPointerSize); | 5909 addiu(sp, fp, 2 * kPointerSize); |
5910 lw(ra, MemOperand(fp, 1 * kPointerSize)); | 5910 lw(ra, MemOperand(fp, 1 * kPointerSize)); |
5911 lw(fp, MemOperand(fp, 0 * kPointerSize)); | 5911 lw(fp, MemOperand(fp, 0 * kPointerSize)); |
5912 } | 5912 } |
5913 | 5913 |
| 5914 void MacroAssembler::EnterBuiltinFrame(Register context, Register target, |
| 5915 Register argc) { |
| 5916 Push(ra, fp); |
| 5917 Move(fp, sp); |
| 5918 Push(context, target, argc); |
| 5919 } |
| 5920 |
| 5921 void MacroAssembler::LeaveBuiltinFrame(Register context, Register target, |
| 5922 Register argc) { |
| 5923 Pop(context, target, argc); |
| 5924 Pop(ra, fp); |
| 5925 } |
| 5926 |
5914 void MacroAssembler::EnterExitFrame(bool save_doubles, int stack_space, | 5927 void MacroAssembler::EnterExitFrame(bool save_doubles, int stack_space, |
5915 StackFrame::Type frame_type) { | 5928 StackFrame::Type frame_type) { |
5916 DCHECK(frame_type == StackFrame::EXIT || | 5929 DCHECK(frame_type == StackFrame::EXIT || |
5917 frame_type == StackFrame::BUILTIN_EXIT); | 5930 frame_type == StackFrame::BUILTIN_EXIT); |
5918 | 5931 |
5919 // Set up the frame structure on the stack. | 5932 // Set up the frame structure on the stack. |
5920 STATIC_ASSERT(2 * kPointerSize == ExitFrameConstants::kCallerSPDisplacement); | 5933 STATIC_ASSERT(2 * kPointerSize == ExitFrameConstants::kCallerSPDisplacement); |
5921 STATIC_ASSERT(1 * kPointerSize == ExitFrameConstants::kCallerPCOffset); | 5934 STATIC_ASSERT(1 * kPointerSize == ExitFrameConstants::kCallerPCOffset); |
5922 STATIC_ASSERT(0 * kPointerSize == ExitFrameConstants::kCallerFPOffset); | 5935 STATIC_ASSERT(0 * kPointerSize == ExitFrameConstants::kCallerFPOffset); |
5923 | 5936 |
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6915 if (mag.shift > 0) sra(result, result, mag.shift); | 6928 if (mag.shift > 0) sra(result, result, mag.shift); |
6916 srl(at, dividend, 31); | 6929 srl(at, dividend, 31); |
6917 Addu(result, result, Operand(at)); | 6930 Addu(result, result, Operand(at)); |
6918 } | 6931 } |
6919 | 6932 |
6920 | 6933 |
6921 } // namespace internal | 6934 } // namespace internal |
6922 } // namespace v8 | 6935 } // namespace v8 |
6923 | 6936 |
6924 #endif // V8_TARGET_ARCH_MIPS | 6937 #endif // V8_TARGET_ARCH_MIPS |
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