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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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| 714 void incq(const Operand& dst); | 714 void incq(const Operand& dst); |
| 715 void incl(const Operand& dst); | 715 void incl(const Operand& dst); |
| 716 | 716 |
| 717 void lea(Register dst, const Operand& src); | 717 void lea(Register dst, const Operand& src); |
| 718 | 718 |
| 719 // Multiply rax by src, put the result in rdx:rax. | 719 // Multiply rax by src, put the result in rdx:rax. |
| 720 void mul(Register src); | 720 void mul(Register src); |
| 721 | 721 |
| 722 void neg(Register dst); | 722 void neg(Register dst); |
| 723 void neg(const Operand& dst); | 723 void neg(const Operand& dst); |
| 724 void negl(Register dst); |
| 724 | 725 |
| 725 void not_(Register dst); | 726 void not_(Register dst); |
| 726 void not_(const Operand& dst); | 727 void not_(const Operand& dst); |
| 727 | 728 |
| 728 void or_(Register dst, Register src) { | 729 void or_(Register dst, Register src) { |
| 729 arithmetic_op(0x0B, dst, src); | 730 arithmetic_op(0x0B, dst, src); |
| 730 } | 731 } |
| 731 | 732 |
| 733 void orl(Register dst, Register src) { |
| 734 arithmetic_op_32(0x0B, dst, src); |
| 735 } |
| 736 |
| 732 void or_(Register dst, const Operand& src) { | 737 void or_(Register dst, const Operand& src) { |
| 733 arithmetic_op(0x0B, dst, src); | 738 arithmetic_op(0x0B, dst, src); |
| 734 } | 739 } |
| 735 | 740 |
| 736 void or_(const Operand& dst, Register src) { | 741 void or_(const Operand& dst, Register src) { |
| 737 arithmetic_op(0x09, src, dst); | 742 arithmetic_op(0x09, src, dst); |
| 738 } | 743 } |
| 739 | 744 |
| 740 void or_(Register dst, Immediate src) { | 745 void or_(Register dst, Immediate src) { |
| 741 immediate_arithmetic_op(0x1, dst, src); | 746 immediate_arithmetic_op(0x1, dst, src); |
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| 853 void testl(Register reg, Immediate mask); | 858 void testl(Register reg, Immediate mask); |
| 854 void testl(const Operand& op, Immediate mask); | 859 void testl(const Operand& op, Immediate mask); |
| 855 void testq(const Operand& op, Register reg); | 860 void testq(const Operand& op, Register reg); |
| 856 void testq(Register dst, Register src); | 861 void testq(Register dst, Register src); |
| 857 void testq(Register dst, Immediate mask); | 862 void testq(Register dst, Immediate mask); |
| 858 | 863 |
| 859 void xor_(Register dst, Register src) { | 864 void xor_(Register dst, Register src) { |
| 860 arithmetic_op(0x33, dst, src); | 865 arithmetic_op(0x33, dst, src); |
| 861 } | 866 } |
| 862 | 867 |
| 868 void xorl(Register dst, Register src) { |
| 869 arithmetic_op_32(0x33, dst, src); |
| 870 } |
| 871 |
| 863 void xor_(Register dst, const Operand& src) { | 872 void xor_(Register dst, const Operand& src) { |
| 864 arithmetic_op(0x33, dst, src); | 873 arithmetic_op(0x33, dst, src); |
| 865 } | 874 } |
| 866 | 875 |
| 867 void xor_(const Operand& dst, Register src) { | 876 void xor_(const Operand& dst, Register src) { |
| 868 arithmetic_op(0x31, src, dst); | 877 arithmetic_op(0x31, src, dst); |
| 869 } | 878 } |
| 870 | 879 |
| 871 void xor_(Register dst, Immediate src) { | 880 void xor_(Register dst, Immediate src) { |
| 872 immediate_arithmetic_op(0x6, dst, src); | 881 immediate_arithmetic_op(0x6, dst, src); |
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| 1042 // Used for inline tables, e.g., jump-tables. | 1051 // Used for inline tables, e.g., jump-tables. |
| 1043 // void dd(uint64_t data, RelocInfo::Mode reloc_info); | 1052 // void dd(uint64_t data, RelocInfo::Mode reloc_info); |
| 1044 | 1053 |
| 1045 int pc_offset() const { return pc_ - buffer_; } | 1054 int pc_offset() const { return pc_ - buffer_; } |
| 1046 int current_statement_position() const { return current_statement_position_; } | 1055 int current_statement_position() const { return current_statement_position_; } |
| 1047 int current_position() const { return current_position_; } | 1056 int current_position() const { return current_position_; } |
| 1048 | 1057 |
| 1049 // Check if there is less than kGap bytes available in the buffer. | 1058 // Check if there is less than kGap bytes available in the buffer. |
| 1050 // If this is the case, we need to grow the buffer before emitting | 1059 // If this is the case, we need to grow the buffer before emitting |
| 1051 // an instruction or relocation information. | 1060 // an instruction or relocation information. |
| 1052 inline bool overflow() const { return pc_ >= reloc_info_writer.pos() - kGap; } | 1061 inline bool buffer_overflow() const { |
| 1062 return pc_ >= reloc_info_writer.pos() - kGap; |
| 1063 } |
| 1053 | 1064 |
| 1054 // Get the number of bytes available in the buffer. | 1065 // Get the number of bytes available in the buffer. |
| 1055 inline int available_space() const { return reloc_info_writer.pos() - pc_; } | 1066 inline int available_space() const { return reloc_info_writer.pos() - pc_; } |
| 1056 | 1067 |
| 1057 // Avoid overflows for displacements etc. | 1068 // Avoid overflows for displacements etc. |
| 1058 static const int kMaximalBufferSize = 512*MB; | 1069 static const int kMaximalBufferSize = 512*MB; |
| 1059 static const int kMinimalBufferSize = 4*KB; | 1070 static const int kMinimalBufferSize = 4*KB; |
| 1060 | 1071 |
| 1061 protected: | 1072 protected: |
| 1062 // void movsd(XMMRegister dst, const Operand& src); | 1073 // void movsd(XMMRegister dst, const Operand& src); |
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| 1272 }; | 1283 }; |
| 1273 | 1284 |
| 1274 | 1285 |
| 1275 // Helper class that ensures that there is enough space for generating | 1286 // Helper class that ensures that there is enough space for generating |
| 1276 // instructions and relocation information. The constructor makes | 1287 // instructions and relocation information. The constructor makes |
| 1277 // sure that there is enough space and (in debug mode) the destructor | 1288 // sure that there is enough space and (in debug mode) the destructor |
| 1278 // checks that we did not generate too much. | 1289 // checks that we did not generate too much. |
| 1279 class EnsureSpace BASE_EMBEDDED { | 1290 class EnsureSpace BASE_EMBEDDED { |
| 1280 public: | 1291 public: |
| 1281 explicit EnsureSpace(Assembler* assembler) : assembler_(assembler) { | 1292 explicit EnsureSpace(Assembler* assembler) : assembler_(assembler) { |
| 1282 if (assembler_->overflow()) assembler_->GrowBuffer(); | 1293 if (assembler_->buffer_overflow()) assembler_->GrowBuffer(); |
| 1283 #ifdef DEBUG | 1294 #ifdef DEBUG |
| 1284 space_before_ = assembler_->available_space(); | 1295 space_before_ = assembler_->available_space(); |
| 1285 #endif | 1296 #endif |
| 1286 } | 1297 } |
| 1287 | 1298 |
| 1288 #ifdef DEBUG | 1299 #ifdef DEBUG |
| 1289 ~EnsureSpace() { | 1300 ~EnsureSpace() { |
| 1290 int bytes_generated = space_before_ - assembler_->available_space(); | 1301 int bytes_generated = space_before_ - assembler_->available_space(); |
| 1291 ASSERT(bytes_generated < assembler_->kGap); | 1302 ASSERT(bytes_generated < assembler_->kGap); |
| 1292 } | 1303 } |
| 1293 #endif | 1304 #endif |
| 1294 | 1305 |
| 1295 private: | 1306 private: |
| 1296 Assembler* assembler_; | 1307 Assembler* assembler_; |
| 1297 #ifdef DEBUG | 1308 #ifdef DEBUG |
| 1298 int space_before_; | 1309 int space_before_; |
| 1299 #endif | 1310 #endif |
| 1300 }; | 1311 }; |
| 1301 | 1312 |
| 1302 } } // namespace v8::internal | 1313 } } // namespace v8::internal |
| 1303 | 1314 |
| 1304 #endif // V8_X64_ASSEMBLER_X64_H_ | 1315 #endif // V8_X64_ASSEMBLER_X64_H_ |
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