[interpreter] Print name together with bytecode handler.

src/interpreter/interpreter.cc

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/interpreter/interpreter.h"
 
 #include "src/ast/prettyprinter.h"
 #include "src/code-factory.h"
 #include "src/compiler.h"
 #include "src/factory.h"
@@ skipping 19 matching lines @@
   DCHECK(FLAG_ignition);
   if (IsDispatchTableInitialized()) return;
   Zone zone;
   HandleScope scope(isolate_);
 
 #define GENERATE_CODE(Name, ...)                                        \
   {                                                                     \
     InterpreterAssembler assembler(isolate_, &zone, Bytecode::k##Name); \
     Do##Name(&assembler);                                               \
     Handle<Code> code = assembler.GenerateCode();                       \
-    TraceCodegen(code, #Name);                                          \
+    dispatch_table_[Bytecodes::ToByte(Bytecode::k##Name)] = *code;      \
+    TraceCodegen(code);                                                 \
     LOG_CODE_EVENT(isolate_,                                            \
                    CodeCreateEvent(Logger::BYTECODE_HANDLER_TAG,        \
                                    AbstractCode::cast(*code), #Name));  \
-    dispatch_table_[Bytecodes::ToByte(Bytecode::k##Name)] = *code;      \
   }
   BYTECODE_LIST(GENERATE_CODE)
 #undef GENERATE_CODE
 }
 
 Code* Interpreter::GetBytecodeHandler(Bytecode bytecode) {
   DCHECK(IsDispatchTableInitialized());
   return dispatch_table_[Bytecodes::ToByte(bytecode)];
 }
 
@@ skipping 54 matching lines @@
 }
 
 bool Interpreter::IsDispatchTableInitialized() {
   if (FLAG_trace_ignition) {
     // Regenerate table to add bytecode tracing operations.
     return false;
   }
   return dispatch_table_[0] != nullptr;
 }
 
-void Interpreter::TraceCodegen(Handle<Code> code, const char* name) {
+void Interpreter::TraceCodegen(Handle<Code> code) {
 #ifdef ENABLE_DISASSEMBLER
   if (FLAG_trace_ignition_codegen) {
     OFStream os(stdout);
-    code->Disassemble(name, os);
+    code->Disassemble(nullptr, os);
     os << std::flush;
   }
 #endif  // ENABLE_DISASSEMBLER
 }
 
+const char* Interpreter::LookupNameOfBytecodeHandler(Code* code) {
+#ifdef ENABLE_DISASSEMBLER
+#define RETURN_NAME(Name, ...)                                         \
+  if (dispatch_table_[Bytecodes::ToByte(Bytecode::k##Name)] == code) { \
+    return #Name;                                                      \
+  }
+  BYTECODE_LIST(RETURN_NAME)
+#undef RETURN_NAME
+#endif  // ENABLE_DISASSEMBLER
+  return nullptr;
+}
+
 // LdaZero
 //
 // Load literal '0' into the accumulator.
 void Interpreter::DoLdaZero(InterpreterAssembler* assembler) {
   Node* zero_value = __ NumberConstant(0.0);
   __ SetAccumulator(zero_value);
   __ Dispatch();
 }
 
 
@@ skipping 1769 matching lines @@
   Node* index = __ LoadRegister(index_reg);
   Node* one = __ SmiConstant(Smi::FromInt(1));
   Node* result = __ SmiAdd(index, one);
   __ SetAccumulator(result);
   __ Dispatch();
 }
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8