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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 // 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_ARM_MACRO_ASSEMBLER_ARM_H_ | 5 #ifndef V8_ARM_MACRO_ASSEMBLER_ARM_H_ |
6 #define V8_ARM_MACRO_ASSEMBLER_ARM_H_ | 6 #define V8_ARM_MACRO_ASSEMBLER_ARM_H_ |
7 | 7 |
8 #include "src/assembler.h" | 8 #include "src/assembler.h" |
9 #include "src/frames.h" | 9 #include "src/frames.h" |
10 #include "src/globals.h" | 10 #include "src/globals.h" |
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30 enum TaggingMode { | 30 enum TaggingMode { |
31 // Tag the result. | 31 // Tag the result. |
32 TAG_RESULT, | 32 TAG_RESULT, |
33 // Don't tag | 33 // Don't tag |
34 DONT_TAG_RESULT | 34 DONT_TAG_RESULT |
35 }; | 35 }; |
36 | 36 |
37 | 37 |
38 enum RememberedSetAction { EMIT_REMEMBERED_SET, OMIT_REMEMBERED_SET }; | 38 enum RememberedSetAction { EMIT_REMEMBERED_SET, OMIT_REMEMBERED_SET }; |
39 enum SmiCheck { INLINE_SMI_CHECK, OMIT_SMI_CHECK }; | 39 enum SmiCheck { INLINE_SMI_CHECK, OMIT_SMI_CHECK }; |
| 40 enum PointersToHereCheck { |
| 41 kPointersToHereMaybeInteresting, |
| 42 kPointersToHereAreAlwaysInteresting |
| 43 }; |
40 enum LinkRegisterStatus { kLRHasNotBeenSaved, kLRHasBeenSaved }; | 44 enum LinkRegisterStatus { kLRHasNotBeenSaved, kLRHasBeenSaved }; |
41 | 45 |
42 | 46 |
43 Register GetRegisterThatIsNotOneOf(Register reg1, | 47 Register GetRegisterThatIsNotOneOf(Register reg1, |
44 Register reg2 = no_reg, | 48 Register reg2 = no_reg, |
45 Register reg3 = no_reg, | 49 Register reg3 = no_reg, |
46 Register reg4 = no_reg, | 50 Register reg4 = no_reg, |
47 Register reg5 = no_reg, | 51 Register reg5 = no_reg, |
48 Register reg6 = no_reg); | 52 Register reg6 = no_reg); |
49 | 53 |
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237 // The offset is the offset from the start of the object, not the offset from | 241 // The offset is the offset from the start of the object, not the offset from |
238 // the tagged HeapObject pointer. For use with FieldOperand(reg, off). | 242 // the tagged HeapObject pointer. For use with FieldOperand(reg, off). |
239 void RecordWriteField( | 243 void RecordWriteField( |
240 Register object, | 244 Register object, |
241 int offset, | 245 int offset, |
242 Register value, | 246 Register value, |
243 Register scratch, | 247 Register scratch, |
244 LinkRegisterStatus lr_status, | 248 LinkRegisterStatus lr_status, |
245 SaveFPRegsMode save_fp, | 249 SaveFPRegsMode save_fp, |
246 RememberedSetAction remembered_set_action = EMIT_REMEMBERED_SET, | 250 RememberedSetAction remembered_set_action = EMIT_REMEMBERED_SET, |
247 SmiCheck smi_check = INLINE_SMI_CHECK); | 251 SmiCheck smi_check = INLINE_SMI_CHECK, |
| 252 PointersToHereCheck pointers_to_here_check_for_value = |
| 253 kPointersToHereMaybeInteresting); |
248 | 254 |
249 // As above, but the offset has the tag presubtracted. For use with | 255 // As above, but the offset has the tag presubtracted. For use with |
250 // MemOperand(reg, off). | 256 // MemOperand(reg, off). |
251 inline void RecordWriteContextSlot( | 257 inline void RecordWriteContextSlot( |
252 Register context, | 258 Register context, |
253 int offset, | 259 int offset, |
254 Register value, | 260 Register value, |
255 Register scratch, | 261 Register scratch, |
256 LinkRegisterStatus lr_status, | 262 LinkRegisterStatus lr_status, |
257 SaveFPRegsMode save_fp, | 263 SaveFPRegsMode save_fp, |
258 RememberedSetAction remembered_set_action = EMIT_REMEMBERED_SET, | 264 RememberedSetAction remembered_set_action = EMIT_REMEMBERED_SET, |
259 SmiCheck smi_check = INLINE_SMI_CHECK) { | 265 SmiCheck smi_check = INLINE_SMI_CHECK, |
| 266 PointersToHereCheck pointers_to_here_check_for_value = |
| 267 kPointersToHereMaybeInteresting) { |
260 RecordWriteField(context, | 268 RecordWriteField(context, |
261 offset + kHeapObjectTag, | 269 offset + kHeapObjectTag, |
262 value, | 270 value, |
263 scratch, | 271 scratch, |
264 lr_status, | 272 lr_status, |
265 save_fp, | 273 save_fp, |
266 remembered_set_action, | 274 remembered_set_action, |
267 smi_check); | 275 smi_check, |
| 276 pointers_to_here_check_for_value); |
268 } | 277 } |
269 | 278 |
| 279 void RecordWriteForMap( |
| 280 Register object, |
| 281 Register map, |
| 282 Register dst, |
| 283 LinkRegisterStatus lr_status, |
| 284 SaveFPRegsMode save_fp); |
| 285 |
270 // For a given |object| notify the garbage collector that the slot |address| | 286 // For a given |object| notify the garbage collector that the slot |address| |
271 // has been written. |value| is the object being stored. The value and | 287 // has been written. |value| is the object being stored. The value and |
272 // address registers are clobbered by the operation. | 288 // address registers are clobbered by the operation. |
273 void RecordWrite( | 289 void RecordWrite( |
274 Register object, | 290 Register object, |
275 Register address, | 291 Register address, |
276 Register value, | 292 Register value, |
277 LinkRegisterStatus lr_status, | 293 LinkRegisterStatus lr_status, |
278 SaveFPRegsMode save_fp, | 294 SaveFPRegsMode save_fp, |
279 RememberedSetAction remembered_set_action = EMIT_REMEMBERED_SET, | 295 RememberedSetAction remembered_set_action = EMIT_REMEMBERED_SET, |
280 SmiCheck smi_check = INLINE_SMI_CHECK); | 296 SmiCheck smi_check = INLINE_SMI_CHECK, |
| 297 PointersToHereCheck pointers_to_here_check_for_value = |
| 298 kPointersToHereMaybeInteresting); |
281 | 299 |
282 // Push a handle. | 300 // Push a handle. |
283 void Push(Handle<Object> handle); | 301 void Push(Handle<Object> handle); |
284 void Push(Smi* smi) { Push(Handle<Smi>(smi, isolate())); } | 302 void Push(Smi* smi) { Push(Handle<Smi>(smi, isolate())); } |
285 | 303 |
286 // Push two registers. Pushes leftmost register first (to highest address). | 304 // Push two registers. Pushes leftmost register first (to highest address). |
287 void Push(Register src1, Register src2, Condition cond = al) { | 305 void Push(Register src1, Register src2, Condition cond = al) { |
288 ASSERT(!src1.is(src2)); | 306 ASSERT(!src1.is(src2)); |
289 if (src1.code() > src2.code()) { | 307 if (src1.code() > src2.code()) { |
290 stm(db_w, sp, src1.bit() | src2.bit(), cond); | 308 stm(db_w, sp, src1.bit() | src2.bit(), cond); |
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1595 #define __FILE_LINE__ __FILE__ ":" CODE_COVERAGE_TOSTRING(__LINE__) | 1613 #define __FILE_LINE__ __FILE__ ":" CODE_COVERAGE_TOSTRING(__LINE__) |
1596 #define ACCESS_MASM(masm) masm->stop(__FILE_LINE__); masm-> | 1614 #define ACCESS_MASM(masm) masm->stop(__FILE_LINE__); masm-> |
1597 #else | 1615 #else |
1598 #define ACCESS_MASM(masm) masm-> | 1616 #define ACCESS_MASM(masm) masm-> |
1599 #endif | 1617 #endif |
1600 | 1618 |
1601 | 1619 |
1602 } } // namespace v8::internal | 1620 } } // namespace v8::internal |
1603 | 1621 |
1604 #endif // V8_ARM_MACRO_ASSEMBLER_ARM_H_ | 1622 #endif // V8_ARM_MACRO_ASSEMBLER_ARM_H_ |
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