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1 // Copyright 2009 the V8 project authors. All rights reserved. | 1 // Copyright 2009 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 |
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875 return CheckPositiveSmi(first); | 875 return CheckPositiveSmi(first); |
876 } | 876 } |
877 movq(kScratchRegister, first); | 877 movq(kScratchRegister, first); |
878 or_(kScratchRegister, second); | 878 or_(kScratchRegister, second); |
879 rol(kScratchRegister, Immediate(1)); | 879 rol(kScratchRegister, Immediate(1)); |
880 testl(kScratchRegister, Immediate(0x03)); | 880 testl(kScratchRegister, Immediate(0x03)); |
881 return zero; | 881 return zero; |
882 } | 882 } |
883 | 883 |
884 | 884 |
885 Condition MacroAssembler::CheckEitherSmi(Register first, Register second) { | 885 Condition MacroAssembler::CheckEitherSmi(Register first, |
| 886 Register second, |
| 887 Register scratch) { |
886 if (first.is(second)) { | 888 if (first.is(second)) { |
887 return CheckSmi(first); | 889 return CheckSmi(first); |
888 } | 890 } |
889 movl(kScratchRegister, first); | 891 if (scratch.is(second)) { |
890 andl(kScratchRegister, second); | 892 andl(scratch, first); |
891 testb(kScratchRegister, Immediate(kSmiTagMask)); | 893 } else { |
| 894 if (!scratch.is(first)) { |
| 895 movl(scratch, first); |
| 896 } |
| 897 andl(scratch, second); |
| 898 } |
| 899 testb(scratch, Immediate(kSmiTagMask)); |
892 return zero; | 900 return zero; |
893 } | 901 } |
894 | 902 |
895 | 903 |
896 Condition MacroAssembler::CheckIsMinSmi(Register src) { | 904 Condition MacroAssembler::CheckIsMinSmi(Register src) { |
897 ASSERT(!src.is(kScratchRegister)); | 905 ASSERT(!src.is(kScratchRegister)); |
898 // If we overflow by subtracting one, it's the minimal smi value. | 906 // If we overflow by subtracting one, it's the minimal smi value. |
899 cmpq(src, kSmiConstantRegister); | 907 cmpq(src, kSmiConstantRegister); |
900 return overflow; | 908 return overflow; |
901 } | 909 } |
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2940 CPU::FlushICache(address_, size_); | 2948 CPU::FlushICache(address_, size_); |
2941 | 2949 |
2942 // Check that the code was patched as expected. | 2950 // Check that the code was patched as expected. |
2943 ASSERT(masm_.pc_ == address_ + size_); | 2951 ASSERT(masm_.pc_ == address_ + size_); |
2944 ASSERT(masm_.reloc_info_writer.pos() == address_ + size_ + Assembler::kGap); | 2952 ASSERT(masm_.reloc_info_writer.pos() == address_ + size_ + Assembler::kGap); |
2945 } | 2953 } |
2946 | 2954 |
2947 } } // namespace v8::internal | 2955 } } // namespace v8::internal |
2948 | 2956 |
2949 #endif // V8_TARGET_ARCH_X64 | 2957 #endif // V8_TARGET_ARCH_X64 |
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