@Test
	public void testLzCountOpGen() throws Exception {
		// Test size change, even though not necessary here
		runEquivalenceTest(translateSleigh(ID_TOYBE64, """
				r0 = lzcount(r1l);
				"""),
			List.of(
				new Case("pos", """
						r1l =4;
						""", List.of("r0")),
				new Case("neg", """
						r1l =-4;
						""", List.of("r0"))));
	}
The size swap is not necessary, but test anyway.
Ghidra/Test/IntegrationTest/src/test.slow/java/ghidra/pcode/emu/jit/gen/JitCodeGeneratorTest.java