llvmlite bacsic usage

llvmliteBasics.py

import sys
from llvmlite import binding as bd
from llvmlite import ir

# read bc / ir file
bc = sys.argv[1]
with open(bc, 'r', encoding="latin-1") as mybc:
    program = mybc.read()

ct = bd.create_context()

moduleRef = bd.parse_bitcode(program, ct)
valueRef = moduleRef.get_function("main")
# creat CFG
graph = bd.get_function_cfg(valueRef, True)
# print(graph)

bd.view_dot_graph(graph, view= True)

'''
Add function to a module
'''
# define a type
int32 = ir.IntType(32)
# create an empty module
mod = ir.Module(name=__file__)
# create a function
ftype = ir.FunctionType(int32, (int32,))
func = ir.Function(mod, ftype, "test")

for f in mod.functions:
    print(str(f))