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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 "src/v8.h" | 5 #include "src/v8.h" |
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/bootstrapper.h" | 10 #include "src/bootstrapper.h" |
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1955 Operand(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR))); | 1955 Operand(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR))); |
1956 | 1956 |
1957 // Get the length from the frame. | 1957 // Get the length from the frame. |
1958 __ lw(a1, MemOperand(sp, 0)); | 1958 __ lw(a1, MemOperand(sp, 0)); |
1959 __ Branch(&try_allocate); | 1959 __ Branch(&try_allocate); |
1960 | 1960 |
1961 // Patch the arguments.length and the parameters pointer. | 1961 // Patch the arguments.length and the parameters pointer. |
1962 __ bind(&adaptor_frame); | 1962 __ bind(&adaptor_frame); |
1963 __ lw(a1, MemOperand(a2, ArgumentsAdaptorFrameConstants::kLengthOffset)); | 1963 __ lw(a1, MemOperand(a2, ArgumentsAdaptorFrameConstants::kLengthOffset)); |
1964 if (has_new_target()) { | 1964 if (has_new_target()) { |
| 1965 Label skip_decrement; |
| 1966 __ Branch(&skip_decrement, eq, a1, Operand(Smi::FromInt(0))); |
1965 // Subtract 1 from smi-tagged arguments count. | 1967 // Subtract 1 from smi-tagged arguments count. |
1966 __ Subu(a1, a1, Operand(2)); | 1968 __ Subu(a1, a1, Operand(2)); |
| 1969 __ bind(&skip_decrement); |
1967 } | 1970 } |
1968 __ sw(a1, MemOperand(sp, 0)); | 1971 __ sw(a1, MemOperand(sp, 0)); |
1969 __ sll(at, a1, kPointerSizeLog2 - kSmiTagSize); | 1972 __ sll(at, a1, kPointerSizeLog2 - kSmiTagSize); |
1970 __ Addu(a3, a2, Operand(at)); | 1973 __ Addu(a3, a2, Operand(at)); |
1971 | 1974 |
1972 __ Addu(a3, a3, Operand(StandardFrameConstants::kCallerSPOffset)); | 1975 __ Addu(a3, a3, Operand(StandardFrameConstants::kCallerSPOffset)); |
1973 __ sw(a3, MemOperand(sp, 1 * kPointerSize)); | 1976 __ sw(a3, MemOperand(sp, 1 * kPointerSize)); |
1974 | 1977 |
1975 // Try the new space allocation. Start out with computing the size | 1978 // Try the new space allocation. Start out with computing the size |
1976 // of the arguments object and the elements array in words. | 1979 // of the arguments object and the elements array in words. |
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5497 kStackUnwindSpace, kInvalidStackOffset, | 5500 kStackUnwindSpace, kInvalidStackOffset, |
5498 MemOperand(fp, 6 * kPointerSize), NULL); | 5501 MemOperand(fp, 6 * kPointerSize), NULL); |
5499 } | 5502 } |
5500 | 5503 |
5501 | 5504 |
5502 #undef __ | 5505 #undef __ |
5503 | 5506 |
5504 } } // namespace v8::internal | 5507 } } // namespace v8::internal |
5505 | 5508 |
5506 #endif // V8_TARGET_ARCH_MIPS | 5509 #endif // V8_TARGET_ARCH_MIPS |
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