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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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1920 if (IsPrevInstrCompactBranch()) { | 1920 if (IsPrevInstrCompactBranch()) { |
1921 nop(); | 1921 nop(); |
1922 } | 1922 } |
1923 } | 1923 } |
1924 | 1924 |
1925 inline void CheckTrampolinePoolQuick(int extra_instructions = 0); | 1925 inline void CheckTrampolinePoolQuick(int extra_instructions = 0); |
1926 | 1926 |
1927 inline void CheckBuffer(); | 1927 inline void CheckBuffer(); |
1928 | 1928 |
1929 private: | 1929 private: |
| 1930 // Avoid overflows for displacements etc. |
| 1931 static const int kMaximalBufferSize = 512 * MB; |
| 1932 |
1930 inline static void set_target_internal_reference_encoded_at(Address pc, | 1933 inline static void set_target_internal_reference_encoded_at(Address pc, |
1931 Address target); | 1934 Address target); |
1932 | 1935 |
1933 // Buffer size and constant pool distance are checked together at regular | 1936 // Buffer size and constant pool distance are checked together at regular |
1934 // intervals of kBufferCheckInterval emitted bytes. | 1937 // intervals of kBufferCheckInterval emitted bytes. |
1935 static constexpr int kBufferCheckInterval = 1 * KB / 2; | 1938 static constexpr int kBufferCheckInterval = 1 * KB / 2; |
1936 | 1939 |
1937 // Code generation. | 1940 // Code generation. |
1938 // The relocation writer's position is at least kGap bytes below the end of | 1941 // The relocation writer's position is at least kGap bytes below the end of |
1939 // the generated instructions. This is so that multi-instruction sequences do | 1942 // the generated instructions. This is so that multi-instruction sequences do |
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2213 public: | 2216 public: |
2214 explicit EnsureSpace(Assembler* assembler) { | 2217 explicit EnsureSpace(Assembler* assembler) { |
2215 assembler->CheckBuffer(); | 2218 assembler->CheckBuffer(); |
2216 } | 2219 } |
2217 }; | 2220 }; |
2218 | 2221 |
2219 } // namespace internal | 2222 } // namespace internal |
2220 } // namespace v8 | 2223 } // namespace v8 |
2221 | 2224 |
2222 #endif // V8_ARM_ASSEMBLER_MIPS_H_ | 2225 #endif // V8_ARM_ASSEMBLER_MIPS_H_ |
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