Hi, I am adapting a pass plugin for opt to the new Pass Manager and everything is fine but the arguments that this pass requires. The next line works with the legacy PM and --xxx (or whatever) is understood:
cl::opt OutputFilename(“xxx”, cl::desc(“This is a parameter”), cl::value_desc(“xxx”));
But this is not the case for the new PM. What can I do?
I have read an answer to a similar question that suggests to build the pass inside LLVM, but there should be a better way to accept
arguments. Other than that, I can’t find anything about this issue.
Hi,
This has come up on llvm-dev before. Min-Yih Hsu gives a really good explanation here: https://lists.llvm.org/pipermail/llvm-dev/2019-September/134974.html
The easiest fix for this is to use the Legacy Pass Manager. Otherwise, IIUC, opt would have to be updated to accommodate for this use case.
-Andrzej