040000 tree 23849f08162fc922bfd98667122baead1e21b693	clang
040000 tree 2cdf699548ebffa76bf8714e2520e896b19b9a5c	gcc
040000 tree d0136d52ed135b566184f013ff6101675287484e	host-gcc
040000 tree 0607af05d64595352ffb75347e975115376c2156	xcc