LoopStripMiningIterShortLoop is supposed to be set to LoopStripMiningIter / 10 by default but the initializing code is never executed:

java -XX:+PrintFlagsFinal -version | grep LoopStripMiningIter
    uintx LoopStripMiningIter = 1000 {C2 product} {default}
    uintx LoopStripMiningIterShortLoop = 0 {C2 product} {default}

java -XX:+PrintFlagsFinal -XX:LoopStripMiningIterShortLoop=100 -version | grep LoopStripMiningIter
    uintx LoopStripMiningIter = 1000 {C2 product} {default}
    uintx LoopStripMiningIterShortLoop = 100 {C2 product} {command line}