// Make the classpath of :foo differ from :bar's
        // thus causing :foo:foo and :bar:bar to have separate ClassLoaders.
        File someLib = file('lib/someLib.jar')
        jarWithClasses(someLib, SomeClass: 'class SomeClass {}')

        file("foo/build.gradle") << """
            buildscript { dependencies { classpath(files('${someLib.toURI()}')) } }
        """

            dependencies {
                compileOnly project(':processor')
                annotationProcessor project(':processor')
            }
        """
        file("src/main/java/SomeClass.java") << """
            @Helper class SomeClass {}
        """
        def processorProjectDir = file("processor")
        def fixture = new HelperProcessorFixture()
        fixture.writeApiTo(processorProjectDir)

            dependencies {
                testFixturesApi('org.foo:stuff:1.0')
            }
        """
        file("fixtures/src/testFixtures/java/SomeClass.java") << "class SomeClass {}"
        file("src/test/java/SomeTest.java") <<
            """
            public class SomeTest {
                @org.junit.Test
                public void test() { }
            }

    int input_last_dim = input_ty.getShape().back();
    if (input_last_dim < 1) return std::nullopt;
    int num_result = result_ty.getNumElements();
    auto size_last = *(--size.value_end<APInt>());
    int32_t k = size_last.getSExtValue();
    if (num_input / input_last_dim * k != num_result) return std::nullopt;
    // We don't match sliceOp with last dim size = 0.
    if (!k) return std::nullopt;