Method run

chapter21/src/test/java/com/seaofnodes/simple/Compile.java:16–35

(String simple, String c)

public class Compile {

    private static Process run(String simple, String c) throws IOException, InterruptedException {
        boolean USE_WSL = System.getProperty("os.name").startsWith("Windows");
        CodeGen code = new CodeGen(simple);
        code.parse().opto().typeCheck().instSelect("x86_64_v2", "SystemV").GCM().localSched().regAlloc().encode();
        if (c != null) for (var n:code._start._outputs) if (n instanceof FunNode f && f._name.equals("main")) f._name = "simple_main";
        code.exportELF("test.o");
        var params = new ArrayList<String>();
        if (USE_WSL) params.add("wsl.exe");
        params.add("gcc");
        params.add("-o");
        params.add("test");
        if (c != null) {
            Files.writeString(Path.of("test.c"), c);
            params.add("test.c");
        }
        params.add("test.o");
        Process p = Runtime.getRuntime().exec(params.toArray(String[]::new));
        assertEquals(0, p.waitFor());
        return Runtime.getRuntime().exec(USE_WSL ? new String[]{"wsl.exe", "./test"}:new String[]{"./test"});
    }

    @Test
    @Ignore