Simple trivial example on how to run an LLVM module and LLVM function pass using LLVM 6.

Run by executing

make runFunctionPassOnTestFile

Or

make runModulePassOnTestfile

LLVM 6.0 and it's dependencies are needed for this to work.

If you get the following error

opt: CommandLine Error: Option 'debug-pass' registered more than once!
LLVM ERROR: inconsistency in registered CommandLine options
make: *** [Makefile:19: runFunctionPassOnTestFile] Error 1

This is most likley due to llvm reporting the following when issuing the following command:

./bin/llvm-config --shared-mode
static

If this is the case, modify the makefile as follows

LLVM_INCLUDEDIR = `llvm-config --includedir`
LLVM_FLAGS = `llvm-config --cxxflags`