test/hotspot/jtreg/runtime/condy/CondyLDCTest.java
author lfoltan
Mon, 12 Feb 2018 14:28:04 -0500
changeset 48959 7b2c4f35fc28
child 49987 e4b3cc56e2b2
permissions -rw-r--r--
8186211: Negative tests for CONSTANT_Dynamic Summary: Additional negative tests for poorly formed CONSTANT_Dynamic_info constant pool structures. Reviewed-by: hseigel, psandoz

/*
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/*
 * @test
 * @bug 8186211
 * @summary Tests various ldc, ldc_w, ldc2_w instructions of CONSTANT_Dynamic.
 * @requires os.arch != "sparcv9"
 * @modules java.base/jdk.internal.misc
 * @library /test/lib
 * @compile CondyUseLDC_W.jasm
 * @compile CondyBadLDC2_W.jasm
 * @compile CondyBadLDC.jasm
 * @run main/othervm -Xverify:all CondyLDCTest
 */

import jdk.test.lib.process.ProcessTools;
import jdk.test.lib.process.OutputAnalyzer;
import jdk.test.lib.compiler.InMemoryJavaCompiler;

public class CondyLDCTest {
    public static void main(String args[]) throws Throwable {
        // 1. Test a ldc_w instruction can be used with condy's which generate
        //    loadable constants of the following types: byte, char, short, float, integer, boolean.
        ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("CondyUseLDC_W");
        OutputAnalyzer oa = new OutputAnalyzer(pb.start());
        oa.shouldNotContain("VerifyError");
        oa.shouldHaveExitValue(0);

        // 2. Test ldc2_w of a condy which returns a dynamically generated
        //    float constant, generates a VerifyError.
        pb = ProcessTools.createJavaProcessBuilder("CondyBadLDC2_W");
        oa = new OutputAnalyzer(pb.start());
        oa.shouldContain("java.lang.VerifyError: Illegal type at constant pool entry");
        oa.shouldContain("CondyBadLDC2_W.F()F @0: ldc2_w");
        oa.shouldHaveExitValue(1);

        // 3. Test a ldc of a condy which returns a dynamically generated
        //    double constant, generates a VerifyError.
        pb = ProcessTools.createJavaProcessBuilder("CondyBadLDC");
        oa = new OutputAnalyzer(pb.start());
        oa.shouldContain("java.lang.VerifyError: Illegal type at constant pool entry");
        oa.shouldContain("CondyBadLDC.D()D @0: ldc");
        oa.shouldHaveExitValue(1);
    }
}