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Issue 7860045: Stack allocating block scoped variables. Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Rebased on tip of tree. Created 9 years ago
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1 // Copyright 2011 the V8 project authors. All rights reserved. 1 // Copyright 2011 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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314 } 314 }
315 315
316 316
317 static bool GenerateCode(CompilationInfo* info) { 317 static bool GenerateCode(CompilationInfo* info) {
318 return info->IsCompilingForDebugging() || !V8::UseCrankshaft() ? 318 return info->IsCompilingForDebugging() || !V8::UseCrankshaft() ?
319 FullCodeGenerator::MakeCode(info) : 319 FullCodeGenerator::MakeCode(info) :
320 MakeCrankshaftCode(info); 320 MakeCrankshaftCode(info);
321 } 321 }
322 322
323 323
324 static bool MakeCode(CompilationInfo* info) { 324 bool Compiler::MakeCode(CompilationInfo* info) {
325 // Precondition: code has been parsed. Postcondition: the code field in 325 // Precondition: code has been parsed. Postcondition: the code field in
326 // the compilation info is set if compilation succeeded. 326 // the compilation info is set if compilation succeeded.
327 ASSERT(info->function() != NULL); 327 ASSERT(info->function() != NULL);
328 return Rewriter::Rewrite(info) && Scope::Analyze(info) && GenerateCode(info); 328 return Rewriter::Rewrite(info) && Scope::Analyze(info) && GenerateCode(info);
329 } 329 }
330 330
331 331
332 #ifdef ENABLE_DEBUGGER_SUPPORT 332 #ifdef ENABLE_DEBUGGER_SUPPORT
333 bool Compiler::MakeCodeForLiveEdit(CompilationInfo* info) { 333 bool Compiler::MakeCodeForLiveEdit(CompilationInfo* info) {
334 // Precondition: code has been parsed. Postcondition: the code field in 334 // Precondition: code has been parsed. Postcondition: the code field in
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390 // rest of the function into account to avoid overlap with the 390 // rest of the function into account to avoid overlap with the
391 // parsing statistics. 391 // parsing statistics.
392 HistogramTimer* rate = info->is_eval() 392 HistogramTimer* rate = info->is_eval()
393 ? info->isolate()->counters()->compile_eval() 393 ? info->isolate()->counters()->compile_eval()
394 : info->isolate()->counters()->compile(); 394 : info->isolate()->counters()->compile();
395 HistogramTimerScope timer(rate); 395 HistogramTimerScope timer(rate);
396 396
397 // Compile the code. 397 // Compile the code.
398 FunctionLiteral* lit = info->function(); 398 FunctionLiteral* lit = info->function();
399 LiveEditFunctionTracker live_edit_tracker(isolate, lit); 399 LiveEditFunctionTracker live_edit_tracker(isolate, lit);
400 if (!MakeCode(info)) { 400 if (!Compiler::MakeCode(info)) {
401 isolate->StackOverflow(); 401 isolate->StackOverflow();
402 return Handle<SharedFunctionInfo>::null(); 402 return Handle<SharedFunctionInfo>::null();
403 } 403 }
404 404
405 // Allocate function. 405 // Allocate function.
406 ASSERT(!info->code().is_null()); 406 ASSERT(!info->code().is_null());
407 Handle<SharedFunctionInfo> result = 407 Handle<SharedFunctionInfo> result =
408 isolate->factory()->NewSharedFunctionInfo( 408 isolate->factory()->NewSharedFunctionInfo(
409 lit->name(), 409 lit->name(),
410 lit->materialized_literal_count(), 410 lit->materialized_literal_count(),
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786 } 786 }
787 } 787 }
788 788
789 GDBJIT(AddCode(Handle<String>(shared->DebugName()), 789 GDBJIT(AddCode(Handle<String>(shared->DebugName()),
790 Handle<Script>(info->script()), 790 Handle<Script>(info->script()),
791 Handle<Code>(info->code()), 791 Handle<Code>(info->code()),
792 info)); 792 info));
793 } 793 }
794 794
795 } } // namespace v8::internal 795 } } // namespace v8::internal
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