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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 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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59 | 59 |
60 | 60 |
61 class StoreBufferOverflowStub: public PlatformCodeStub { | 61 class StoreBufferOverflowStub: public PlatformCodeStub { |
62 public: | 62 public: |
63 explicit StoreBufferOverflowStub(SaveFPRegsMode save_fp) | 63 explicit StoreBufferOverflowStub(SaveFPRegsMode save_fp) |
64 : save_doubles_(save_fp) { } | 64 : save_doubles_(save_fp) { } |
65 | 65 |
66 void Generate(MacroAssembler* masm); | 66 void Generate(MacroAssembler* masm); |
67 | 67 |
68 virtual bool IsPregenerated(); | 68 virtual bool IsPregenerated(); |
69 static void GenerateFixedRegStubsAheadOfTime(); | 69 static void GenerateFixedRegStubsAheadOfTime(Isolate* isolate); |
70 virtual bool SometimesSetsUpAFrame() { return false; } | 70 virtual bool SometimesSetsUpAFrame() { return false; } |
71 | 71 |
72 private: | 72 private: |
73 SaveFPRegsMode save_doubles_; | 73 SaveFPRegsMode save_doubles_; |
74 | 74 |
75 Major MajorKey() { return StoreBufferOverflow; } | 75 Major MajorKey() { return StoreBufferOverflow; } |
76 int MinorKey() { return (save_doubles_ == kSaveFPRegs) ? 1 : 0; } | 76 int MinorKey() { return (save_doubles_ == kSaveFPRegs) ? 1 : 0; } |
77 }; | 77 }; |
78 | 78 |
79 | 79 |
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298 class WriteInt32ToHeapNumberStub : public PlatformCodeStub { | 298 class WriteInt32ToHeapNumberStub : public PlatformCodeStub { |
299 public: | 299 public: |
300 WriteInt32ToHeapNumberStub(Register the_int, | 300 WriteInt32ToHeapNumberStub(Register the_int, |
301 Register the_heap_number, | 301 Register the_heap_number, |
302 Register scratch) | 302 Register scratch) |
303 : the_int_(the_int), | 303 : the_int_(the_int), |
304 the_heap_number_(the_heap_number), | 304 the_heap_number_(the_heap_number), |
305 scratch_(scratch) { } | 305 scratch_(scratch) { } |
306 | 306 |
307 bool IsPregenerated(); | 307 bool IsPregenerated(); |
308 static void GenerateFixedRegStubsAheadOfTime(); | 308 static void GenerateFixedRegStubsAheadOfTime(Isolate* isolate); |
309 | 309 |
310 private: | 310 private: |
311 Register the_int_; | 311 Register the_int_; |
312 Register the_heap_number_; | 312 Register the_heap_number_; |
313 Register scratch_; | 313 Register scratch_; |
314 | 314 |
315 // Minor key encoding in 16 bits. | 315 // Minor key encoding in 16 bits. |
316 class IntRegisterBits: public BitField<int, 0, 4> {}; | 316 class IntRegisterBits: public BitField<int, 0, 4> {}; |
317 class HeapNumberRegisterBits: public BitField<int, 4, 4> {}; | 317 class HeapNumberRegisterBits: public BitField<int, 4, 4> {}; |
318 class ScratchRegisterBits: public BitField<int, 8, 4> {}; | 318 class ScratchRegisterBits: public BitField<int, 8, 4> {}; |
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372 value) { // One scratch reg. | 372 value) { // One scratch reg. |
373 } | 373 } |
374 | 374 |
375 enum Mode { | 375 enum Mode { |
376 STORE_BUFFER_ONLY, | 376 STORE_BUFFER_ONLY, |
377 INCREMENTAL, | 377 INCREMENTAL, |
378 INCREMENTAL_COMPACTION | 378 INCREMENTAL_COMPACTION |
379 }; | 379 }; |
380 | 380 |
381 virtual bool IsPregenerated(); | 381 virtual bool IsPregenerated(); |
382 static void GenerateFixedRegStubsAheadOfTime(); | 382 static void GenerateFixedRegStubsAheadOfTime(Isolate* isolate); |
383 virtual bool SometimesSetsUpAFrame() { return false; } | 383 virtual bool SometimesSetsUpAFrame() { return false; } |
384 | 384 |
385 static void PatchBranchIntoNop(MacroAssembler* masm, int pos) { | 385 static void PatchBranchIntoNop(MacroAssembler* masm, int pos) { |
386 masm->instr_at_put(pos, (masm->instr_at(pos) & ~B27) | (B24 | B20)); | 386 masm->instr_at_put(pos, (masm->instr_at(pos) & ~B27) | (B24 | B20)); |
387 ASSERT(Assembler::IsTstImmediate(masm->instr_at(pos))); | 387 ASSERT(Assembler::IsTstImmediate(masm->instr_at(pos))); |
388 } | 388 } |
389 | 389 |
390 static void PatchNopIntoBranch(MacroAssembler* masm, int pos) { | 390 static void PatchNopIntoBranch(MacroAssembler* masm, int pos) { |
391 masm->instr_at_put(pos, (masm->instr_at(pos) & ~(B24 | B20)) | B27); | 391 masm->instr_at_put(pos, (masm->instr_at(pos) & ~(B24 | B20)) | B27); |
392 ASSERT(Assembler::IsBranch(masm->instr_at(pos))); | 392 ASSERT(Assembler::IsBranch(masm->instr_at(pos))); |
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791 | 791 |
792 class LookupModeBits: public BitField<LookupMode, 0, 1> {}; | 792 class LookupModeBits: public BitField<LookupMode, 0, 1> {}; |
793 | 793 |
794 LookupMode mode_; | 794 LookupMode mode_; |
795 }; | 795 }; |
796 | 796 |
797 | 797 |
798 } } // namespace v8::internal | 798 } } // namespace v8::internal |
799 | 799 |
800 #endif // V8_ARM_CODE_STUBS_ARM_H_ | 800 #endif // V8_ARM_CODE_STUBS_ARM_H_ |
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