Remove all the code that set and tested Res. Change all convert* functions to return void since none of them can fail. getInstruction only has one main point of failure, after all calls to tryDecodeInst have failed.
Remove all the code that set and tested Res. Change all convert* functions to return void since none of them can fail. getInstruction only has one main point of failure, after all calls to tryDecodeInst have failed.