Reputation: 407
I've got a LLVM Module and I was wondering if there was an easy way to run all LLVM optimizations passes using the C++ API for -O3 (without having to register each pass individually).
Upvotes: 0
Views: 401
Reputation: 273416
Yes, you need to use the PassManagerBuilder
class for it. You set the optimization level, and then ask it to populate a pass manager for you.
An easy way to see how it's done is to look at the source of opt.cpp
in the LLVM repository - right here.
Upvotes: 3