Method: LLVM::ExecutionEngine#run_function

Defined in:
lib/llvm/execution_engine.rb

#run_function(fun, *args) ⇒ Object

Execute the given LLVM::Function with the supplied args (as GenericValues). Important: Call #dispose on the returned GenericValue to free backend memory after use.



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# File 'lib/llvm/execution_engine.rb', line 63

def run_function(fun, *args)
  FFI::MemoryPointer.new(FFI.type_size(:pointer) * args.size) do |args_ptr|
    new_values = []
    args_ptr.write_array_of_pointer(fun.params.zip(args).map do |p, a|
      if a.kind_of?(GenericValue)
        a
      else
        value = LLVM.make_generic_value(p.type, a)
        new_values << value
        value
      end
    end)
    result = LLVM::GenericValue.from_ptr(
      C.run_function(self, fun, args.size, args_ptr))
    new_values.each(&:dispose)
    return result
  end
end