Description

Methods containing a try/catch/finally are 30x slower in recent builds because they are now run through the interpreter.

For example:

private static void TestTryCatch()
{
	int InvokeMethod(int a)
	{
		try
		{
			return a++;
		}
		catch
		{
			Console.WriteLine("catch");
			return 0;
		}
	}

	var sw = Stopwatch.StartNew();
	for (int i = 0; i < 10000000; i++)
	{
		InvokeMethod(i);
	}
	sw.Stop();
	Console.WriteLine($"TestTryCatch: {sw.ElapsedMilliseconds}");
}

Runs in 45ms with df6e956, and 1140ms with e983168

Here's a profiler trace screenshot:

Configuration

Working commit: df6e956
Failing commit: e983168 (it probably started doing this before this commit)

Regression?

Yes

Other information