OLD | NEW |
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 |
(...skipping 1554 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
1565 } | 1565 } |
1566 | 1566 |
1567 | 1567 |
1568 void PatchInlinedSmiCode(Address address) { | 1568 void PatchInlinedSmiCode(Address address) { |
1569 Address andi_instruction_address = | 1569 Address andi_instruction_address = |
1570 address + Assembler::kCallTargetAddressOffset; | 1570 address + Assembler::kCallTargetAddressOffset; |
1571 | 1571 |
1572 // If the instruction following the call is not a andi at, rx, #yyy, nothing | 1572 // If the instruction following the call is not a andi at, rx, #yyy, nothing |
1573 // was inlined. | 1573 // was inlined. |
1574 Instr instr = Assembler::instr_at(andi_instruction_address); | 1574 Instr instr = Assembler::instr_at(andi_instruction_address); |
1575 if (!Assembler::IsAndImmediate(instr)) { | 1575 if (!(Assembler::IsAndImmediate(instr) && |
| 1576 Assembler::GetRt(instr) == (uint32_t)zero_reg.code())) { |
1576 return; | 1577 return; |
1577 } | 1578 } |
1578 | 1579 |
1579 // The delta to the start of the map check instruction and the | 1580 // The delta to the start of the map check instruction and the |
1580 // condition code uses at the patched jump. | 1581 // condition code uses at the patched jump. |
1581 int delta = Assembler::GetImmediate16(instr); | 1582 int delta = Assembler::GetImmediate16(instr); |
1582 delta += Assembler::GetRs(instr) * kImm16Mask; | 1583 delta += Assembler::GetRs(instr) * kImm16Mask; |
1583 // If the delta is 0 the instruction is andi at, zero_reg, #0 which also | 1584 // If the delta is 0 the instruction is andi at, zero_reg, #0 which also |
1584 // signals that nothing was inlined. | 1585 // signals that nothing was inlined. |
1585 if (delta == 0) { | 1586 if (delta == 0) { |
(...skipping 40 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
1626 Register reg = Register::from_code(Assembler::GetRs(instr_at_patch)); | 1627 Register reg = Register::from_code(Assembler::GetRs(instr_at_patch)); |
1627 patcher.masm()->andi(at, reg, kSmiTagMask); | 1628 patcher.masm()->andi(at, reg, kSmiTagMask); |
1628 patcher.ChangeBranchCondition(eq); | 1629 patcher.ChangeBranchCondition(eq); |
1629 } | 1630 } |
1630 } | 1631 } |
1631 | 1632 |
1632 | 1633 |
1633 } } // namespace v8::internal | 1634 } } // namespace v8::internal |
1634 | 1635 |
1635 #endif // V8_TARGET_ARCH_MIPS | 1636 #endif // V8_TARGET_ARCH_MIPS |
OLD | NEW |