I’m following this guide on writing an LLVM pass and in particular running the hello world pass: Writing an LLVM Pass — LLVM 16.0.0git documentation
When loading the LLVMHello.so library in opt and running it, opt says the ‘hello’ pass doesn’t exist:
./bin/opt -load ./lib/LLVMHello.so -hello input.ll -S ./bin/opt: unknown pass name 'hello'
Even though if I run --help, it shows the hello pass as an option:
./bin/opt -load ./lib/LLVMHello.so --help | grep -i hello --hello - Hello World Pass --hello2 - Hello World Pass (with getAnalysisUsage implemented)
What am I doing wrong here?