There is a section at the Command Line documentation with the header “Dynamically Adding Command Line Options” but it is empty:
https://llvm.org/docs/CommandLine.html#dynamically-adding-command-line-options
What was this supposed to contain?
It seems that the placeholder has been there since 2002 (https://reviews.llvm.org/rL3095).
I guess it probably intended to include a static local variable example.
// llvm/tools/llvm-readobj/llvm-readobj.cpp has an example.
static cl::alias ...