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Side by Side Diff: src/arm/code-stubs-arm.h

Issue 96853003: Drop IsPregenerated() and allow_stub_calls flag. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Also ditch the fixed register hack that was required for RecordWriteStub. Created 7 years ago
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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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61 }; 61 };
62 62
63 63
64 class StoreBufferOverflowStub: public PlatformCodeStub { 64 class StoreBufferOverflowStub: public PlatformCodeStub {
65 public: 65 public:
66 explicit StoreBufferOverflowStub(SaveFPRegsMode save_fp) 66 explicit StoreBufferOverflowStub(SaveFPRegsMode save_fp)
67 : save_doubles_(save_fp) {} 67 : save_doubles_(save_fp) {}
68 68
69 void Generate(MacroAssembler* masm); 69 void Generate(MacroAssembler* masm);
70 70
71 virtual bool IsPregenerated(Isolate* isolate) V8_OVERRIDE { return true; }
72 static void GenerateFixedRegStubsAheadOfTime(Isolate* isolate); 71 static void GenerateFixedRegStubsAheadOfTime(Isolate* isolate);
73 virtual bool SometimesSetsUpAFrame() { return false; } 72 virtual bool SometimesSetsUpAFrame() { return false; }
74 73
75 private: 74 private:
76 SaveFPRegsMode save_doubles_; 75 SaveFPRegsMode save_doubles_;
77 76
78 Major MajorKey() { return StoreBufferOverflow; } 77 Major MajorKey() { return StoreBufferOverflow; }
79 int MinorKey() { return (save_doubles_ == kSaveFPRegs) ? 1 : 0; } 78 int MinorKey() { return (save_doubles_ == kSaveFPRegs) ? 1 : 0; }
80 }; 79 };
81 80
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224 // so you don't have to set up the frame. 223 // so you don't have to set up the frame.
225 class WriteInt32ToHeapNumberStub : public PlatformCodeStub { 224 class WriteInt32ToHeapNumberStub : public PlatformCodeStub {
226 public: 225 public:
227 WriteInt32ToHeapNumberStub(Register the_int, 226 WriteInt32ToHeapNumberStub(Register the_int,
228 Register the_heap_number, 227 Register the_heap_number,
229 Register scratch) 228 Register scratch)
230 : the_int_(the_int), 229 : the_int_(the_int),
231 the_heap_number_(the_heap_number), 230 the_heap_number_(the_heap_number),
232 scratch_(scratch) { } 231 scratch_(scratch) { }
233 232
234 virtual bool IsPregenerated(Isolate* isolate) V8_OVERRIDE;
235 static void GenerateFixedRegStubsAheadOfTime(Isolate* isolate); 233 static void GenerateFixedRegStubsAheadOfTime(Isolate* isolate);
236 234
237 private: 235 private:
238 Register the_int_; 236 Register the_int_;
239 Register the_heap_number_; 237 Register the_heap_number_;
240 Register scratch_; 238 Register scratch_;
241 239
242 // Minor key encoding in 16 bits. 240 // Minor key encoding in 16 bits.
243 class IntRegisterBits: public BitField<int, 0, 4> {}; 241 class IntRegisterBits: public BitField<int, 0, 4> {};
244 class HeapNumberRegisterBits: public BitField<int, 4, 4> {}; 242 class HeapNumberRegisterBits: public BitField<int, 4, 4> {};
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272 address, // An input reg. 270 address, // An input reg.
273 value) { // One scratch reg. 271 value) { // One scratch reg.
274 } 272 }
275 273
276 enum Mode { 274 enum Mode {
277 STORE_BUFFER_ONLY, 275 STORE_BUFFER_ONLY,
278 INCREMENTAL, 276 INCREMENTAL,
279 INCREMENTAL_COMPACTION 277 INCREMENTAL_COMPACTION
280 }; 278 };
281 279
282 virtual bool IsPregenerated(Isolate* isolate) V8_OVERRIDE;
283 static void GenerateFixedRegStubsAheadOfTime(Isolate* isolate);
284 virtual bool SometimesSetsUpAFrame() { return false; } 280 virtual bool SometimesSetsUpAFrame() { return false; }
285 281
286 static void PatchBranchIntoNop(MacroAssembler* masm, int pos) { 282 static void PatchBranchIntoNop(MacroAssembler* masm, int pos) {
287 masm->instr_at_put(pos, (masm->instr_at(pos) & ~B27) | (B24 | B20)); 283 masm->instr_at_put(pos, (masm->instr_at(pos) & ~B27) | (B24 | B20));
288 ASSERT(Assembler::IsTstImmediate(masm->instr_at(pos))); 284 ASSERT(Assembler::IsTstImmediate(masm->instr_at(pos)));
289 } 285 }
290 286
291 static void PatchNopIntoBranch(MacroAssembler* masm, int pos) { 287 static void PatchNopIntoBranch(MacroAssembler* masm, int pos) {
292 masm->instr_at_put(pos, (masm->instr_at(pos) & ~(B24 | B20)) | B27); 288 masm->instr_at_put(pos, (masm->instr_at(pos) & ~(B24 | B20)) | B27);
293 ASSERT(Assembler::IsBranch(masm->instr_at(pos))); 289 ASSERT(Assembler::IsBranch(masm->instr_at(pos)));
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504 500
505 class LookupModeBits: public BitField<LookupMode, 0, 1> {}; 501 class LookupModeBits: public BitField<LookupMode, 0, 1> {};
506 502
507 LookupMode mode_; 503 LookupMode mode_;
508 }; 504 };
509 505
510 506
511 } } // namespace v8::internal 507 } } // namespace v8::internal
512 508
513 #endif // V8_ARM_CODE_STUBS_ARM_H_ 509 #endif // V8_ARM_CODE_STUBS_ARM_H_
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