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Issue 703603003: Reland "Optimize function across closures." (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Fix Created 6 years, 1 month ago
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1 // Copyright 2014 the V8 project authors. All rights reserved. 1 // Copyright 2014 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 #include "src/factory.h" 5 #include "src/factory.h"
6 6
7 #include "src/allocation-site-scopes.h" 7 #include "src/allocation-site-scopes.h"
8 #include "src/base/bits.h" 8 #include "src/base/bits.h"
9 #include "src/conversions.h" 9 #include "src/conversions.h"
10 #include "src/isolate-inl.h" 10 #include "src/isolate-inl.h"
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1351 Handle<JSObject> prototype = NewJSObjectFromMap(new_map); 1351 Handle<JSObject> prototype = NewJSObjectFromMap(new_map);
1352 1352
1353 if (!function->shared()->is_generator()) { 1353 if (!function->shared()->is_generator()) {
1354 JSObject::AddProperty(prototype, constructor_string(), function, DONT_ENUM); 1354 JSObject::AddProperty(prototype, constructor_string(), function, DONT_ENUM);
1355 } 1355 }
1356 1356
1357 return prototype; 1357 return prototype;
1358 } 1358 }
1359 1359
1360 1360
1361 static bool ShouldOptimizeNewClosure(Isolate* isolate,
1362 Handle<SharedFunctionInfo> info) {
1363 return isolate->use_crankshaft() && !info->is_toplevel() &&
1364 info->is_compiled() && info->allows_lazy_compilation() &&
1365 !info->optimization_disabled() && !isolate->DebuggerHasBreakPoints();
1366 }
1367
1368
1361 Handle<JSFunction> Factory::NewFunctionFromSharedFunctionInfo( 1369 Handle<JSFunction> Factory::NewFunctionFromSharedFunctionInfo(
1362 Handle<SharedFunctionInfo> info, 1370 Handle<SharedFunctionInfo> info,
1363 Handle<Context> context, 1371 Handle<Context> context,
1364 PretenureFlag pretenure) { 1372 PretenureFlag pretenure) {
1365 int map_index = Context::FunctionMapIndex(info->strict_mode(), info->kind()); 1373 int map_index = Context::FunctionMapIndex(info->strict_mode(), info->kind());
1366 Handle<Map> map(Map::cast(context->native_context()->get(map_index))); 1374 Handle<Map> map(Map::cast(context->native_context()->get(map_index)));
1367 Handle<JSFunction> result = NewFunction(map, info, context, pretenure); 1375 Handle<JSFunction> result = NewFunction(map, info, context, pretenure);
1368 1376
1369 if (info->ic_age() != isolate()->heap()->global_ic_age()) { 1377 if (info->ic_age() != isolate()->heap()->global_ic_age()) {
1370 info->ResetForNewContext(isolate()->heap()->global_ic_age()); 1378 info->ResetForNewContext(isolate()->heap()->global_ic_age());
(...skipping 17 matching lines...) Expand all
1388 if (index > 0) { 1396 if (index > 0) {
1389 // Caching of optimized code enabled and optimized code found. 1397 // Caching of optimized code enabled and optimized code found.
1390 FixedArray* literals = info->GetLiteralsFromOptimizedCodeMap(index); 1398 FixedArray* literals = info->GetLiteralsFromOptimizedCodeMap(index);
1391 if (literals != NULL) result->set_literals(literals); 1399 if (literals != NULL) result->set_literals(literals);
1392 Code* code = info->GetCodeFromOptimizedCodeMap(index); 1400 Code* code = info->GetCodeFromOptimizedCodeMap(index);
1393 DCHECK(!code->marked_for_deoptimization()); 1401 DCHECK(!code->marked_for_deoptimization());
1394 result->ReplaceCode(code); 1402 result->ReplaceCode(code);
1395 return result; 1403 return result;
1396 } 1404 }
1397 1405
1398 if (isolate()->use_crankshaft() && 1406 if (FLAG_always_opt && ShouldOptimizeNewClosure(isolate(), info)) {
1399 FLAG_always_opt &&
1400 result->is_compiled() &&
1401 !info->is_toplevel() &&
1402 info->allows_lazy_compilation() &&
1403 !info->optimization_disabled() &&
1404 !isolate()->DebuggerHasBreakPoints()) {
1405 result->MarkForOptimization(); 1407 result->MarkForOptimization();
1408 } else if (info->optimize_next_closure() &&
1409 ShouldOptimizeNewClosure(isolate(), info)) {
1410 result->AttemptConcurrentOptimization();
1406 } 1411 }
1407 return result; 1412 return result;
1408 } 1413 }
1409 1414
1410 1415
1411 Handle<ScopeInfo> Factory::NewScopeInfo(int length) { 1416 Handle<ScopeInfo> Factory::NewScopeInfo(int length) {
1412 Handle<FixedArray> array = NewFixedArray(length, TENURED); 1417 Handle<FixedArray> array = NewFixedArray(length, TENURED);
1413 array->set_map_no_write_barrier(*scope_info_map()); 1418 array->set_map_no_write_barrier(*scope_info_map());
1414 Handle<ScopeInfo> scope_info = Handle<ScopeInfo>::cast(array); 1419 Handle<ScopeInfo> scope_info = Handle<ScopeInfo>::cast(array);
1415 return scope_info; 1420 return scope_info;
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2498 return Handle<Object>::null(); 2503 return Handle<Object>::null();
2499 } 2504 }
2500 2505
2501 2506
2502 Handle<Object> Factory::ToBoolean(bool value) { 2507 Handle<Object> Factory::ToBoolean(bool value) {
2503 return value ? true_value() : false_value(); 2508 return value ? true_value() : false_value();
2504 } 2509 }
2505 2510
2506 2511
2507 } } // namespace v8::internal 2512 } } // namespace v8::internal
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