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Issue 101413006: Implement in-heap backing store for typed arrays. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: GC fixes Created 6 years, 11 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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1838 return generic_stub(); 1838 return generic_stub();
1839 } 1839 }
1840 } 1840 }
1841 1841
1842 // If the store mode isn't the standard mode, make sure that all polymorphic 1842 // If the store mode isn't the standard mode, make sure that all polymorphic
1843 // receivers are either external arrays, or all "normal" arrays. Otherwise, 1843 // receivers are either external arrays, or all "normal" arrays. Otherwise,
1844 // use the generic stub. 1844 // use the generic stub.
1845 if (store_mode != STANDARD_STORE) { 1845 if (store_mode != STANDARD_STORE) {
1846 int external_arrays = 0; 1846 int external_arrays = 0;
1847 for (int i = 0; i < target_receiver_maps.length(); ++i) { 1847 for (int i = 0; i < target_receiver_maps.length(); ++i) {
1848 if (target_receiver_maps[i]->has_external_array_elements()) { 1848 if (target_receiver_maps[i]->has_external_array_elements() ||
1849 target_receiver_maps[i]->has_fixed_typed_array_elements()) {
1849 external_arrays++; 1850 external_arrays++;
1850 } 1851 }
1851 } 1852 }
1852 if (external_arrays != 0 && 1853 if (external_arrays != 0 &&
1853 external_arrays != target_receiver_maps.length()) { 1854 external_arrays != target_receiver_maps.length()) {
1854 TRACE_GENERIC_IC(isolate(), "KeyedIC", 1855 TRACE_GENERIC_IC(isolate(), "KeyedIC",
1855 "unsupported combination of external and normal arrays"); 1856 "unsupported combination of external and normal arrays");
1856 return generic_stub(); 1857 return generic_stub();
1857 } 1858 }
1858 } 1859 }
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3220 #undef ADDR 3221 #undef ADDR
3221 }; 3222 };
3222 3223
3223 3224
3224 Address IC::AddressFromUtilityId(IC::UtilityId id) { 3225 Address IC::AddressFromUtilityId(IC::UtilityId id) {
3225 return IC_utilities[id]; 3226 return IC_utilities[id];
3226 } 3227 }
3227 3228
3228 3229
3229 } } // namespace v8::internal 3230 } } // namespace v8::internal
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