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Issue 872001: Fix code cache lookup for keyed IC's... (Closed) Base URL: http://v8.googlecode.com/svn/branches/bleeding_edge/
Patch Set: '' Created 10 years, 9 months ago
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1 // Copyright 2006-2009 the V8 project authors. All rights reserved. 1 // Copyright 2006-2009 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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3048 Object* Map::FindInCodeCache(String* name, Code::Flags flags) { 3048 Object* Map::FindInCodeCache(String* name, Code::Flags flags) {
3049 // Do a lookup if a code cache exists. 3049 // Do a lookup if a code cache exists.
3050 if (!code_cache()->IsFixedArray()) { 3050 if (!code_cache()->IsFixedArray()) {
3051 return CodeCache::cast(code_cache())->Lookup(name, flags); 3051 return CodeCache::cast(code_cache())->Lookup(name, flags);
3052 } else { 3052 } else {
3053 return Heap::undefined_value(); 3053 return Heap::undefined_value();
3054 } 3054 }
3055 } 3055 }
3056 3056
3057 3057
3058 int Map::IndexInCodeCache(String* name, Code* code) { 3058 int Map::IndexInCodeCache(Object* name, Code* code) {
3059 // Get the internal index if a code cache exists. 3059 // Get the internal index if a code cache exists.
3060 if (!code_cache()->IsFixedArray()) { 3060 if (!code_cache()->IsFixedArray()) {
3061 return CodeCache::cast(code_cache())->GetIndex(name, code); 3061 return CodeCache::cast(code_cache())->GetIndex(name, code);
3062 } 3062 }
3063 return -1; 3063 return -1;
3064 } 3064 }
3065 3065
3066 3066
3067 void Map::RemoveFromCodeCache(String* name, Code* code, int index) { 3067 void Map::RemoveFromCodeCache(String* name, Code* code, int index) {
3068 // No GC is supposed to happen between a call to IndexInCodeCache and 3068 // No GC is supposed to happen between a call to IndexInCodeCache and
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3193 Object* CodeCache::LookupNormalTypeCache(String* name, Code::Flags flags) { 3193 Object* CodeCache::LookupNormalTypeCache(String* name, Code::Flags flags) {
3194 if (!normal_type_cache()->IsUndefined()) { 3194 if (!normal_type_cache()->IsUndefined()) {
3195 CodeCacheHashTable* cache = CodeCacheHashTable::cast(normal_type_cache()); 3195 CodeCacheHashTable* cache = CodeCacheHashTable::cast(normal_type_cache());
3196 return cache->Lookup(name, flags); 3196 return cache->Lookup(name, flags);
3197 } else { 3197 } else {
3198 return Heap::undefined_value(); 3198 return Heap::undefined_value();
3199 } 3199 }
3200 } 3200 }
3201 3201
3202 3202
3203 int CodeCache::GetIndex(String* name, Code* code) { 3203 int CodeCache::GetIndex(Object* name, Code* code) {
3204 // This is not used for normal load/store/call IC's.
3205 if (code->type() == NORMAL) { 3204 if (code->type() == NORMAL) {
3206 if (normal_type_cache()->IsUndefined()) return -1; 3205 if (normal_type_cache()->IsUndefined()) return -1;
3207 CodeCacheHashTable* cache = CodeCacheHashTable::cast(normal_type_cache()); 3206 CodeCacheHashTable* cache = CodeCacheHashTable::cast(normal_type_cache());
3208 return cache->GetIndex(name, code->flags()); 3207 return cache->GetIndex(String::cast(name), code->flags());
3209 } 3208 }
3210 3209
3211 FixedArray* array = default_cache(); 3210 FixedArray* array = default_cache();
3212 int len = array->length(); 3211 int len = array->length();
3213 for (int i = 0; i < len; i += kCodeCacheEntrySize) { 3212 for (int i = 0; i < len; i += kCodeCacheEntrySize) {
3214 if (array->get(i + kCodeCacheEntryCodeOffset) == code) return i + 1; 3213 if (array->get(i + kCodeCacheEntryCodeOffset) == code) return i + 1;
3215 } 3214 }
3216 return -1; 3215 return -1;
3217 } 3216 }
3218 3217
3219 3218
3220 void CodeCache::RemoveByIndex(String* name, Code* code, int index) { 3219 void CodeCache::RemoveByIndex(Object* name, Code* code, int index) {
3221 if (code->type() == NORMAL) { 3220 if (code->type() == NORMAL) {
3222 ASSERT(!normal_type_cache()->IsUndefined()); 3221 ASSERT(!normal_type_cache()->IsUndefined());
3223 CodeCacheHashTable* cache = CodeCacheHashTable::cast(normal_type_cache()); 3222 CodeCacheHashTable* cache = CodeCacheHashTable::cast(normal_type_cache());
3224 ASSERT(cache->GetIndex(name, code->flags()) == index); 3223 ASSERT(cache->GetIndex(String::cast(name), code->flags()) == index);
3225 cache->RemoveByIndex(index); 3224 cache->RemoveByIndex(index);
3226 } else { 3225 } else {
3227 FixedArray* array = default_cache(); 3226 FixedArray* array = default_cache();
3228 ASSERT(array->length() >= index && array->get(index)->IsCode()); 3227 ASSERT(array->length() >= index && array->get(index)->IsCode());
3229 // Use null instead of undefined for deleted elements to distinguish 3228 // Use null instead of undefined for deleted elements to distinguish
3230 // deleted elements from unused elements. This distinction is used 3229 // deleted elements from unused elements. This distinction is used
3231 // when looking up in the cache and when updating the cache. 3230 // when looking up in the cache and when updating the cache.
3232 ASSERT_EQ(1, kCodeCacheEntryCodeOffset - kCodeCacheEntryNameOffset); 3231 ASSERT_EQ(1, kCodeCacheEntryCodeOffset - kCodeCacheEntryNameOffset);
3233 array->set_null(index - 1); // Name. 3232 array->set_null(index - 1); // Name.
3234 array->set_null(index); // Code. 3233 array->set_null(index); // Code.
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8580 if (break_point_objects()->IsUndefined()) return 0; 8579 if (break_point_objects()->IsUndefined()) return 0;
8581 // Single beak point. 8580 // Single beak point.
8582 if (!break_point_objects()->IsFixedArray()) return 1; 8581 if (!break_point_objects()->IsFixedArray()) return 1;
8583 // Multiple break points. 8582 // Multiple break points.
8584 return FixedArray::cast(break_point_objects())->length(); 8583 return FixedArray::cast(break_point_objects())->length();
8585 } 8584 }
8586 #endif 8585 #endif
8587 8586
8588 8587
8589 } } // namespace v8::internal 8588 } } // namespace v8::internal
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