1. Indenting spaces converted to tabs

2. Options changed: -G --> -g

evmcc/evmcc.cpp

@@ -1,4 +1,5 @@
 
+#include <chrono>
 #include <iostream>
 #include <fstream>
 #include <ostream>
@@ -32,6 +33,7 @@ int main(int argc, char** argv)
 	bool opt_interpret = false;
 	bool opt_dump_graph = false;
 	bool opt_unknown = false;
+	bool opt_verbose = false;
 	size_t initialGas = 10000;
 
 	for (int i = 1; i < argc; i++)
@@ -45,14 +47,16 @@ int main(int argc, char** argv)
 			opt_dissassemble = true;
 		else if (option == "-i")
 			opt_interpret = true;
-		else if (option == "-g")
+		else if (option == "--dump-cfg")
 			opt_dump_graph = true;
-		else if (option == "-G" && i + 1 < argc)
+		else if (option == "-g" && i + 1 < argc)
 		{
 			std::string gasValue = argv[++i];
 			initialGas = boost::lexical_cast<size_t>(gasValue);
 			std::cerr << "Initial gas set to " << initialGas << "\n";
 		}
+		else if (option == "-v")
+			opt_verbose = true;
 		else if (option[0] != '-' && input_file.empty())
 			input_file = option;
 		else
@@ -87,9 +91,7 @@ int main(int argc, char** argv)
 	bytes bytecode = fromHex(src);
 
 	if (opt_show_bytes)
-    {
 		std::cout << memDump(bytecode) << std::endl;
-    }
 
 	if (opt_dissassemble)
 	{
@@ -99,11 +101,22 @@ int main(int argc, char** argv)
 
 	if (opt_compile || opt_interpret)
 	{
+		auto compilationStartTime = std::chrono::high_resolution_clock::now();
+
 		auto compiler = eth::jit::Compiler();
 		auto module = compiler.compile({bytecode.data(), bytecode.size()});
 
+		auto compilationEndTime = std::chrono::high_resolution_clock::now();
+
 		module->dump();
 
+		if (opt_verbose)
+		{
+			std::cerr << "*** Compilation time: "
+			          << std::chrono::duration_cast<std::chrono::microseconds>(compilationEndTime - compilationStartTime).count()
+			          << std::endl;
+		}
+
 		if (opt_dump_graph)
 		{
 			std::ofstream ofs("blocks.dot");