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Issue 6691003: Strict mode poision pills. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Kraken fix. Created 9 years, 9 months ago
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1 // Copyright 2010 the V8 project authors. All rights reserved. 1 // Copyright 2010 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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4909 Result CodeGenerator::InstantiateFunction( 4909 Result CodeGenerator::InstantiateFunction(
4910 Handle<SharedFunctionInfo> function_info, 4910 Handle<SharedFunctionInfo> function_info,
4911 bool pretenure) { 4911 bool pretenure) {
4912 // The inevitable call will sync frame elements to memory anyway, so 4912 // The inevitable call will sync frame elements to memory anyway, so
4913 // we do it eagerly to allow us to push the arguments directly into 4913 // we do it eagerly to allow us to push the arguments directly into
4914 // place. 4914 // place.
4915 frame()->SyncRange(0, frame()->element_count() - 1); 4915 frame()->SyncRange(0, frame()->element_count() - 1);
4916 4916
4917 // Use the fast case closure allocation code that allocates in new 4917 // Use the fast case closure allocation code that allocates in new
4918 // space for nested functions that don't need literals cloning. 4918 // space for nested functions that don't need literals cloning.
4919 if (scope()->is_function_scope() && 4919 if (!pretenure &&
4920 scope()->is_function_scope() &&
4920 function_info->num_literals() == 0 && 4921 function_info->num_literals() == 0 &&
4921 !pretenure) { 4922 !function_info->strict_mode()) { // Strict mode functions use slow path.
4922 FastNewClosureStub stub; 4923 FastNewClosureStub stub;
4923 frame()->EmitPush(Immediate(function_info)); 4924 frame()->EmitPush(Immediate(function_info));
4924 return frame()->CallStub(&stub, 1); 4925 return frame()->CallStub(&stub, 1);
4925 } else { 4926 } else {
4926 // Call the runtime to instantiate the function based on the 4927 // Call the runtime to instantiate the function based on the
4927 // shared function info. 4928 // shared function info.
4928 frame()->EmitPush(esi); 4929 frame()->EmitPush(esi);
4929 frame()->EmitPush(Immediate(function_info)); 4930 frame()->EmitPush(Immediate(function_info));
4930 frame()->EmitPush(Immediate(pretenure 4931 frame()->EmitPush(Immediate(pretenure
4931 ? Factory::true_value() 4932 ? Factory::true_value()
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10355 memcpy(chunk->GetStartAddress(), desc.buffer, desc.instr_size); 10356 memcpy(chunk->GetStartAddress(), desc.buffer, desc.instr_size);
10356 CPU::FlushICache(chunk->GetStartAddress(), desc.instr_size); 10357 CPU::FlushICache(chunk->GetStartAddress(), desc.instr_size);
10357 return FUNCTION_CAST<MemCopyFunction>(chunk->GetStartAddress()); 10358 return FUNCTION_CAST<MemCopyFunction>(chunk->GetStartAddress());
10358 } 10359 }
10359 10360
10360 #undef __ 10361 #undef __
10361 10362
10362 } } // namespace v8::internal 10363 } } // namespace v8::internal
10363 10364
10364 #endif // V8_TARGET_ARCH_IA32 10365 #endif // V8_TARGET_ARCH_IA32
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