ruby-llvm/ruby-llvm

# frozen_string_literal: true

require 'test_helper'
require 'llvm/config'
require 'llvm/transforms/pass_manager_builder'

class PassManagerBuilderTest < Minitest::Test
  def setup
    LLVM.init_jit
    @builder = LLVM::PassManagerBuilder.new

    @pass_manager = LLVM::PassManager.new
  end

  def teardown
    @builder.dispose
    @pass_manager.dispose
  end

  def test_init
    assert_equal  0,     @builder.size_level
    assert_equal  0,     @builder.opt_level
    assert_equal  false, @builder.unit_at_a_time
    assert_equal  false, @builder.unroll_loops
    assert_equal  false, @builder.simplify_lib_calls
    assert_equal  0,     @builder.inliner_threshold
  end

  def test_opt_level
    @builder.opt_level = 3
    assert_equal 3, @builder.opt_level
  end

  def test_build
    assert_raises(LLVM::DeprecationError) do
      @builder.build(@pass_manager)
    end
  end

  def test_build_with_lto
    assert_raises(LLVM::DeprecationError) do
      @builder.build_with_lto(@pass_manager)
    end
  end

  def test_build_with_lto_deprecated_internalize_param
    assert_raises do
      @builder.build_with_lto(@pass_manager, 0)
    end
  end

  def test_build_with_lto_deprecated_run_inliner_param
    assert_raises do
      @builder.build_with_lto(@pass_manager, false, 0)
    end
  end

  PASSES = LLVM::PassManager.new.methods.grep(/\S!$/).freeze

  describe "PassManager Passes" do
    before do
      assert @pass_manager = LLVM::PassManager.new
    end
    PASSES.each do |pass|
      it "should raise DeprecationError for '#{pass}'" do
        assert_raises(LLVM::DeprecationError) do
          @pass_manager.send(pass)
        end
      end
    end
  end
end