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1 // Copyright (c) 1994-2006 Sun Microsystems Inc. | 1 // Copyright (c) 1994-2006 Sun Microsystems Inc. |
2 // All Rights Reserved. | 2 // All Rights Reserved. |
3 // | 3 // |
4 // Redistribution and use in source and binary forms, with or without | 4 // Redistribution and use in source and binary forms, with or without |
5 // modification, are permitted provided that the following conditions are | 5 // modification, are permitted provided that the following conditions are |
6 // met: | 6 // met: |
7 // | 7 // |
8 // - Redistributions of source code must retain the above copyright notice, | 8 // - Redistributions of source code must retain the above copyright notice, |
9 // this list of conditions and the following disclaimer. | 9 // this list of conditions and the following disclaimer. |
10 // | 10 // |
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923 // Note: The same Label can be used for forward and backward branches | 923 // Note: The same Label can be used for forward and backward branches |
924 // but it may be bound only once. | 924 // but it may be bound only once. |
925 | 925 |
926 void bind(Label* L); // binds an unbound label L to the current code position | 926 void bind(Label* L); // binds an unbound label L to the current code position |
927 | 927 |
928 // Calls | 928 // Calls |
929 // Call near relative 32-bit displacement, relative to next instruction. | 929 // Call near relative 32-bit displacement, relative to next instruction. |
930 void call(Label* L); | 930 void call(Label* L); |
931 void call(Address entry, RelocInfo::Mode rmode); | 931 void call(Address entry, RelocInfo::Mode rmode); |
932 void call(Handle<Code> target, | 932 void call(Handle<Code> target, |
933 RelocInfo::Mode rmode = RelocInfo::CODE_TARGET, | 933 RelocInfo::Mode rmode = RelocInfo::CODE_TARGET); |
934 TypeFeedbackId ast_id = TypeFeedbackId::None()); | |
935 | 934 |
936 // Calls directly to the given address using a relative offset. | 935 // Calls directly to the given address using a relative offset. |
937 // Should only ever be used in Code objects for calls within the | 936 // Should only ever be used in Code objects for calls within the |
938 // same Code object. Should not be used when generating new code (use labels), | 937 // same Code object. Should not be used when generating new code (use labels), |
939 // but only when patching existing code. | 938 // but only when patching existing code. |
940 void call(Address target); | 939 void call(Address target); |
941 | 940 |
942 // Call near absolute indirect, address in register | 941 // Call near absolute indirect, address in register |
943 void call(Register adr); | 942 void call(Register adr); |
944 | 943 |
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2061 } | 2060 } |
2062 | 2061 |
2063 // code emission | 2062 // code emission |
2064 void GrowBuffer(); | 2063 void GrowBuffer(); |
2065 | 2064 |
2066 void emit(byte x) { *pc_++ = x; } | 2065 void emit(byte x) { *pc_++ = x; } |
2067 inline void emitl(uint32_t x); | 2066 inline void emitl(uint32_t x); |
2068 inline void emitp(void* x, RelocInfo::Mode rmode); | 2067 inline void emitp(void* x, RelocInfo::Mode rmode); |
2069 inline void emitq(uint64_t x); | 2068 inline void emitq(uint64_t x); |
2070 inline void emitw(uint16_t x); | 2069 inline void emitw(uint16_t x); |
2071 inline void emit_code_target(Handle<Code> target, | 2070 inline void emit_code_target(Handle<Code> target, RelocInfo::Mode rmode); |
2072 RelocInfo::Mode rmode, | |
2073 TypeFeedbackId ast_id = TypeFeedbackId::None()); | |
2074 inline void emit_runtime_entry(Address entry, RelocInfo::Mode rmode); | 2071 inline void emit_runtime_entry(Address entry, RelocInfo::Mode rmode); |
2075 inline void emit(Immediate x); | 2072 inline void emit(Immediate x); |
2076 | 2073 |
2077 // Emits a REX prefix that encodes a 64-bit operand size and | 2074 // Emits a REX prefix that encodes a 64-bit operand size and |
2078 // the top bit of both register codes. | 2075 // the top bit of both register codes. |
2079 // High bit of reg goes to REX.R, high bit of rm_reg goes to REX.B. | 2076 // High bit of reg goes to REX.R, high bit of rm_reg goes to REX.B. |
2080 // REX.W is set. | 2077 // REX.W is set. |
2081 inline void emit_rex_64(XMMRegister reg, Register rm_reg); | 2078 inline void emit_rex_64(XMMRegister reg, Register rm_reg); |
2082 inline void emit_rex_64(Register reg, XMMRegister rm_reg); | 2079 inline void emit_rex_64(Register reg, XMMRegister rm_reg); |
2083 inline void emit_rex_64(Register reg, Register rm_reg); | 2080 inline void emit_rex_64(Register reg, Register rm_reg); |
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2540 Assembler* assembler_; | 2537 Assembler* assembler_; |
2541 #ifdef DEBUG | 2538 #ifdef DEBUG |
2542 int space_before_; | 2539 int space_before_; |
2543 #endif | 2540 #endif |
2544 }; | 2541 }; |
2545 | 2542 |
2546 } // namespace internal | 2543 } // namespace internal |
2547 } // namespace v8 | 2544 } // namespace v8 |
2548 | 2545 |
2549 #endif // V8_X64_ASSEMBLER_X64_H_ | 2546 #endif // V8_X64_ASSEMBLER_X64_H_ |
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