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Issue 214493002: Introduce rolp, rorp, rclp, rcrp, shlp, shrp and sarp for x64 port (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Addressed comments Created 6 years, 9 months 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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414 // cache. Otherwise probe the dictionary leaving result in rcx. 414 // cache. Otherwise probe the dictionary leaving result in rcx.
415 __ movp(rbx, FieldOperand(rdx, JSObject::kPropertiesOffset)); 415 __ movp(rbx, FieldOperand(rdx, JSObject::kPropertiesOffset));
416 __ CompareRoot(FieldOperand(rbx, HeapObject::kMapOffset), 416 __ CompareRoot(FieldOperand(rbx, HeapObject::kMapOffset),
417 Heap::kHashTableMapRootIndex); 417 Heap::kHashTableMapRootIndex);
418 __ j(equal, &probe_dictionary); 418 __ j(equal, &probe_dictionary);
419 419
420 // Load the map of the receiver, compute the keyed lookup cache hash 420 // Load the map of the receiver, compute the keyed lookup cache hash
421 // based on 32 bits of the map pointer and the string hash. 421 // based on 32 bits of the map pointer and the string hash.
422 __ movp(rbx, FieldOperand(rdx, HeapObject::kMapOffset)); 422 __ movp(rbx, FieldOperand(rdx, HeapObject::kMapOffset));
423 __ movl(rcx, rbx); 423 __ movl(rcx, rbx);
424 __ shr(rcx, Immediate(KeyedLookupCache::kMapHashShift)); 424 __ shrl(rcx, Immediate(KeyedLookupCache::kMapHashShift));
425 __ movl(rdi, FieldOperand(rax, String::kHashFieldOffset)); 425 __ movl(rdi, FieldOperand(rax, String::kHashFieldOffset));
426 __ shr(rdi, Immediate(String::kHashShift)); 426 __ shrl(rdi, Immediate(String::kHashShift));
427 __ xorp(rcx, rdi); 427 __ xorp(rcx, rdi);
428 int mask = (KeyedLookupCache::kCapacityMask & KeyedLookupCache::kHashMask); 428 int mask = (KeyedLookupCache::kCapacityMask & KeyedLookupCache::kHashMask);
429 __ andp(rcx, Immediate(mask)); 429 __ andp(rcx, Immediate(mask));
430 430
431 // Load the key (consisting of map and internalized string) from the cache and 431 // Load the key (consisting of map and internalized string) from the cache and
432 // check for match. 432 // check for match.
433 Label load_in_object_property; 433 Label load_in_object_property;
434 static const int kEntriesPerBucket = KeyedLookupCache::kEntriesPerBucket; 434 static const int kEntriesPerBucket = KeyedLookupCache::kEntriesPerBucket;
435 Label hit_on_nth_entry[kEntriesPerBucket]; 435 Label hit_on_nth_entry[kEntriesPerBucket];
436 ExternalReference cache_keys 436 ExternalReference cache_keys
437 = ExternalReference::keyed_lookup_cache_keys(masm->isolate()); 437 = ExternalReference::keyed_lookup_cache_keys(masm->isolate());
438 438
439 for (int i = 0; i < kEntriesPerBucket - 1; i++) { 439 for (int i = 0; i < kEntriesPerBucket - 1; i++) {
440 Label try_next_entry; 440 Label try_next_entry;
441 __ movp(rdi, rcx); 441 __ movp(rdi, rcx);
442 __ shl(rdi, Immediate(kPointerSizeLog2 + 1)); 442 __ shlp(rdi, Immediate(kPointerSizeLog2 + 1));
443 __ LoadAddress(kScratchRegister, cache_keys); 443 __ LoadAddress(kScratchRegister, cache_keys);
444 int off = kPointerSize * i * 2; 444 int off = kPointerSize * i * 2;
445 __ cmpp(rbx, Operand(kScratchRegister, rdi, times_1, off)); 445 __ cmpp(rbx, Operand(kScratchRegister, rdi, times_1, off));
446 __ j(not_equal, &try_next_entry); 446 __ j(not_equal, &try_next_entry);
447 __ cmpp(rax, Operand(kScratchRegister, rdi, times_1, off + kPointerSize)); 447 __ cmpp(rax, Operand(kScratchRegister, rdi, times_1, off + kPointerSize));
448 __ j(equal, &hit_on_nth_entry[i]); 448 __ j(equal, &hit_on_nth_entry[i]);
449 __ bind(&try_next_entry); 449 __ bind(&try_next_entry);
450 } 450 }
451 451
452 int off = kPointerSize * (kEntriesPerBucket - 1) * 2; 452 int off = kPointerSize * (kEntriesPerBucket - 1) * 2;
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1321 Condition cc = (check == ENABLE_INLINED_SMI_CHECK) 1321 Condition cc = (check == ENABLE_INLINED_SMI_CHECK)
1322 ? (*jmp_address == Assembler::kJncShortOpcode ? not_zero : zero) 1322 ? (*jmp_address == Assembler::kJncShortOpcode ? not_zero : zero)
1323 : (*jmp_address == Assembler::kJnzShortOpcode ? not_carry : carry); 1323 : (*jmp_address == Assembler::kJnzShortOpcode ? not_carry : carry);
1324 *jmp_address = static_cast<byte>(Assembler::kJccShortPrefix | cc); 1324 *jmp_address = static_cast<byte>(Assembler::kJccShortPrefix | cc);
1325 } 1325 }
1326 1326
1327 1327
1328 } } // namespace v8::internal 1328 } } // namespace v8::internal
1329 1329
1330 #endif // V8_TARGET_ARCH_X64 1330 #endif // V8_TARGET_ARCH_X64
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