@Test
	public void testSubPieceOpGen() throws Exception {
		runEquivalenceTest(translateSleigh(ID_TOYBE64, """
				r0l = r1(3);
				r3 = r4l(3);
				"""),
			List.of(
				new Case("only", """
						r1 =0x%x;
						r4l=0x12345678;
						""".formatted(LONG_CONST), 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