Partial ia32 implementation of optimized try/catch (by Kevin Millikin)

src/full-codegen.cc

 // Copyright 2012 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 1225 matching lines @@
   }
   // Restore the context.
   LoadContextField(context_register(), Context::PREVIOUS_INDEX);
   StoreToFrameField(StandardFrameConstants::kContextOffset, context_register());
   scope_ = saved_scope;
   __ jmp(&exit);
 
   // Try block code. Sets up the exception handler chain.
   __ bind(&try_entry);
   __ PushTryHandler(StackHandler::CATCH, stmt->index());
+  PrepareForBailoutForId(stmt->TryEntryId(), NO_REGISTERS);
   { TryCatch try_body(this);
     Visit(stmt->try_block());
   }
   __ PopTryHandler();
+  PrepareForBailoutForId(stmt->TryExitId(), NO_REGISTERS);
   __ bind(&exit);
 }
 
 
 void FullCodeGenerator::VisitTryFinallyStatement(TryFinallyStatement* stmt) {
   Comment cmnt(masm_, "[ TryFinallyStatement");
   SetStatementPosition(stmt);
   // Try finally is compiled by setting up a try-handler on the stack while
   // executing the try body, and removing it again afterwards.
   //
@@ skipping 161 matching lines @@
   }
 
   return false;
 }
 
 
 #undef __
 
 
 } }  // namespace v8::internal