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1 // Copyright 2013 the V8 project authors. All rights reserved. | 1 // Copyright 2013 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef V8_ARM64_INSTRUCTIONS_ARM64_H_ | 5 #ifndef V8_ARM64_INSTRUCTIONS_ARM64_H_ |
6 #define V8_ARM64_INSTRUCTIONS_ARM64_H_ | 6 #define V8_ARM64_INSTRUCTIONS_ARM64_H_ |
7 | 7 |
8 #include "src/arm64/constants-arm64.h" | 8 #include "src/arm64/constants-arm64.h" |
9 #include "src/arm64/utils-arm64.h" | 9 #include "src/arm64/utils-arm64.h" |
10 #include "src/globals.h" | 10 #include "src/globals.h" |
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331 // which is encoded as | 331 // which is encoded as |
332 // orr r<n>, xzr, r<n> | 332 // orr r<n>, xzr, r<n> |
333 return (Mask(LogicalShiftedMask) == ORR_x) && | 333 return (Mask(LogicalShiftedMask) == ORR_x) && |
334 (Rd() == Rm()) && | 334 (Rd() == Rm()) && |
335 (Rd() == n); | 335 (Rd() == n); |
336 } | 336 } |
337 | 337 |
338 // Find the PC offset encoded in this instruction. 'this' may be a branch or | 338 // Find the PC offset encoded in this instruction. 'this' may be a branch or |
339 // a PC-relative addressing instruction. | 339 // a PC-relative addressing instruction. |
340 // The offset returned is unscaled. | 340 // The offset returned is unscaled. |
341 ptrdiff_t ImmPCOffset(); | 341 int64_t ImmPCOffset(); |
342 | 342 |
343 // Find the target of this instruction. 'this' may be a branch or a | 343 // Find the target of this instruction. 'this' may be a branch or a |
344 // PC-relative addressing instruction. | 344 // PC-relative addressing instruction. |
345 Instruction* ImmPCOffsetTarget(); | 345 Instruction* ImmPCOffsetTarget(); |
346 | 346 |
347 static bool IsValidImmPCOffset(ImmBranchType branch_type, int32_t offset); | 347 static bool IsValidImmPCOffset(ImmBranchType branch_type, int32_t offset); |
348 bool IsTargetInImmPCOffsetRange(Instruction* target); | 348 bool IsTargetInImmPCOffsetRange(Instruction* target); |
349 // Patch a PC-relative offset to refer to 'target'. 'this' may be a branch or | 349 // Patch a PC-relative offset to refer to 'target'. 'this' may be a branch or |
350 // a PC-relative addressing instruction. | 350 // a PC-relative addressing instruction. |
351 void SetImmPCOffsetTarget(Instruction* target); | 351 void SetImmPCOffsetTarget(Instruction* target); |
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500 TRACE_ENABLE = 1 << 6, | 500 TRACE_ENABLE = 1 << 6, |
501 TRACE_DISABLE = 2 << 6, | 501 TRACE_DISABLE = 2 << 6, |
502 TRACE_OVERRIDE = 3 << 6 | 502 TRACE_OVERRIDE = 3 << 6 |
503 }; | 503 }; |
504 | 504 |
505 | 505 |
506 } } // namespace v8::internal | 506 } } // namespace v8::internal |
507 | 507 |
508 | 508 |
509 #endif // V8_ARM64_INSTRUCTIONS_ARM64_H_ | 509 #endif // V8_ARM64_INSTRUCTIONS_ARM64_H_ |
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