Run All LLVM Passes

374 views Asked by At

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).

1

There are 1 answers

0
Eli Bendersky On BEST ANSWER

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.