MIR Gen - Patch around edge case where an arm can end up with the drop flag incorrectly set
MIR Gen - Patch around edge case where an arm can end up with the drop flag incorrectly set

thepowersgang/mrustc,thepowersgang/mrustc,thepowersgang/mrustc,thepowersgang/mrustc,thepowersgang/mrustc