Parallel recompilation: remove interrupt for code generation.

src/deoptimizer.cc

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 1975 matching lines @@
   return true;
 }
 
 
 void Deoptimizer::PatchStackCheckCode(Code* unoptimized_code,
                                       Code* check_code,
                                       Code* replacement_code) {
   // Iterate over the stack check table and patch every stack check
   // call to an unconditional call to the replacement code.
   ASSERT(unoptimized_code->kind() == Code::FUNCTION);
+  ASSERT(!unoptimized_code->stack_check_patched_for_osr());
   Address stack_check_cursor = unoptimized_code->instruction_start() +
       unoptimized_code->stack_check_table_offset();
   uint32_t table_length = Memory::uint32_at(stack_check_cursor);
   stack_check_cursor += kIntSize;
   for (uint32_t i = 0; i < table_length; ++i) {
     uint32_t pc_offset = Memory::uint32_at(stack_check_cursor + kIntSize);
     Address pc_after = unoptimized_code->instruction_start() + pc_offset;
     PatchStackCheckCodeAt(unoptimized_code,
                           pc_after,
                           check_code,
                           replacement_code);
     stack_check_cursor += 2 * kIntSize;
   }
+  unoptimized_code->set_stack_check_patched_for_osr(true);
 }
 
 
 void Deoptimizer::RevertStackCheckCode(Code* unoptimized_code,
                                        Code* check_code,
                                        Code* replacement_code) {
   // Iterate over the stack check table and revert the patched
   // stack check calls.
   ASSERT(unoptimized_code->kind() == Code::FUNCTION);
+  ASSERT(unoptimized_code->stack_check_patched_for_osr());
   Address stack_check_cursor = unoptimized_code->instruction_start() +
       unoptimized_code->stack_check_table_offset();
   uint32_t table_length = Memory::uint32_at(stack_check_cursor);
   stack_check_cursor += kIntSize;
   for (uint32_t i = 0; i < table_length; ++i) {
     uint32_t pc_offset = Memory::uint32_at(stack_check_cursor + kIntSize);
     Address pc_after = unoptimized_code->instruction_start() + pc_offset;
     RevertStackCheckCodeAt(unoptimized_code,
                            pc_after,
                            check_code,
                            replacement_code);
     stack_check_cursor += 2 * kIntSize;
   }
+  unoptimized_code->set_stack_check_patched_for_osr(false);
 }
 
 
 unsigned Deoptimizer::ComputeInputFrameSize() const {
   unsigned fixed_size = ComputeFixedSize(function_);
   // The fp-to-sp delta already takes the context and the function
   // into account so we have to avoid double counting them (-2).
   unsigned result = fixed_size + fp_to_sp_delta_ - (2 * kPointerSize);
 #ifdef DEBUG
   if (bailout_type_ == OSR) {
@@ skipping 639 matching lines @@
 
 void DeoptimizedFrameInfo::Iterate(ObjectVisitor* v) {
   v->VisitPointer(BitCast<Object**>(&function_));
   v->VisitPointers(parameters_, parameters_ + parameters_count_);
   v->VisitPointers(expression_stack_, expression_stack_ + expression_count_);
 }
 
 #endif  // ENABLE_DEBUGGER_SUPPORT
 
 } }  // namespace v8::internal