opt-16(1) on Linux
The text d20e64c3e08e, as Debian 11 (Bullseye) shipped it.
LLVM optimizer
Flags it lists
-
-S -
-debug -
-f -
-help -
-load -
-o -
-print-passes -
-stats -
-strip-debug -
-time-passes -
-verify-each