A FUTEX_WAIT_PRIVATE hang has been observed after the program runs for
a while. Multithreading is not used, so it is hoped that this
eliminates the bug.
-fwarn-incomplete-record-updates
-fwarn-monomorphism-restriction
-fwarn-unused-do-bind
-fwarn-incomplete-record-updates
-fwarn-monomorphism-restriction
-fwarn-unused-do-bind
-optc-O3
-optc-march=native
-O2
-optc-O3
-optc-march=native
-O2
-fwarn-incomplete-record-updates
-fwarn-monomorphism-restriction
-fwarn-unused-do-bind
-fwarn-incomplete-record-updates
-fwarn-monomorphism-restriction
-fwarn-unused-do-bind
-optc-O3
-optc-march=native
-O2
-optc-O3
-optc-march=native
-O2