The following test failed in the JDK20 CI:

compiler/vectorapi/VectorLogicalOpIdentityTest.java

Here's a snippet from the log file:

----------System.err:(47/5875)*----------
WARNING: Using incubator modules: jdk.incubator.vector

Command Line:
/System/Volumes/Data/mesos/work_dir/jib-master/install/jdk-20+5-193/macosx-x64-debug.jdk/jdk-20/fastdebug/bin/java -DReproduce=true -cp /System/Volumes/Data/mesos/work_dir/slaves/0c72054a-24ab-4dbb-944f-97f9341a1b96-S4130/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/96643a06-773a-480b-ab73-caebe4cd758e/runs/c612c19b-0a8c-4cb1-bbba-5bbe8727ea2f/testoutput/test-support/jtreg_open_test_hotspot_jtreg_hotspot_not_fast_compiler/classes/2/compiler/vectorapi/VectorLogicalOpIdentityTest.d:/System/Volumes/Data/mesos/work_dir/jib-master/install/jdk-20+5-193/src.full/open/test/hotspot/jtreg/compiler/vectorapi:/System/Volumes/Data/mesos/work_dir/slaves/0c72054a-24ab-4dbb-944f-97f9341a1b96-S4130/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/96643a06-773a-480b-ab73-caebe4cd758e/runs/c612c19b-0a8c-4cb1-bbba-5bbe8727ea2f/testoutput/test-support/jtreg_open_test_hotspot_jtreg_hotspot_not_fast_compiler/classes/2/test/lib:/System/Volumes/Data/mesos/work_dir/jib-master/install/jdk-20+5-193/src.full/open/test/lib:/System/Volumes/Data/mesos/work_dir/slaves/0c72054a-24ab-4dbb-944f-97f9341a1b96-S4130/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/96643a06-773a-480b-ab73-caebe4cd758e/runs/c612c19b-0a8c-4cb1-bbba-5bbe8727ea2f/testoutput/test-support/jtreg_open_test_hotspot_jtreg_hotspot_not_fast_compiler/classes/2:/System/Volumes/Data/mesos/work_dir/jib-master/install/jdk-20+5-193/src.full/open/test/hotspot/jtreg:/System/Volumes/Data/mesos/work_dir/jib-master/install/jtreg/6.1/1/bundles/jtreg-6.1+1.zip/jtreg/lib/javatest.jar:/System/Volumes/Data/mesos/work_dir/jib-master/install/jtreg/6.1/1/bundles/jtreg-6.1+1.zip/jtreg/lib/jtreg.jar -Djava.library.path=/System/Volumes/Data/mesos/work_dir/jib-master/install/jdk-20+5-193/macosx-x64-debug.test/hotspot/jtreg/native -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:MaxRAMPercentage=6.25 -Djava.io.tmpdir=/System/Volumes/Data/mesos/work_dir/slaves/0c72054a-24ab-4dbb-944f-97f9341a1b96-S4130/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/96643a06-773a-480b-ab73-caebe4cd758e/runs/c612c19b-0a8c-4cb1-bbba-5bbe8727ea2f/testoutput/test-support/jtreg_open_test_hotspot_jtreg_hotspot_not_fast_compiler/tmp -XX:+CreateCoredumpOnCrash -ea -esa -XX:+UnlockExperimentalVMOptions -server -XX:-TieredCompilation -Dir.framework.server.port=56658 --add-modules=jdk.incubator.vector -XX:+PrintCompilation -XX:+UnlockDiagnosticVMOptions -XX:+LogCompilation -XX:CompileCommand=log,compiler.vectorapi.VectorLogicalOpIdentityTest::* -XX:CompileCommand=option,compiler.vectorapi.VectorLogicalOpIdentityTest::*,bool,PrintIdeal,true -XX:CompileCommand=option,compiler.vectorapi.VectorLogicalOpIdentityTest::*,bool,PrintOptoAssembly,true -XX:-OmitStackTraceInFastThrow -DShouldDoIRVerification=true -XX:-BackgroundCompilation -XX:CompileCommand=quiet compiler.lib.ir_framework.test.TestVM compiler.vectorapi.VectorLogicalOpIdentityTest

One or more @IR rules failed:

Failed IR Rules (1) of Methods (1)
----------------------------------
1) Method "public static void compiler.vectorapi.VectorLogicalOpIdentityTest.testMaskAndZero()" - [Failed IR rules: 1]:
   * @IR rule 1: "@compiler.lib.ir_framework.IR(applyIfCPUFeatureAnd={}, applyIf={}, applyIfCPUFeatureOr={}, applyIfCPUFeature={}, counts={"(\\\\d+(\\\\s){2}(StoreVector.*)+(\\\\s){2}===.*)", ">=1"}, failOn={"(\\\\d+(\\\\s){2}(AndV.*)+(\\\\s){2}===.*)", "(\\\\d+(\\\\s){2}(AndVMask.*)+(\\\\s){2}===.*)"}, applyIfAnd={}, applyIfOr={}, applyIfNot={})"
     - counts: Graph contains wrong number of nodes:
       * Regex 1: (\\d+(\\s){2}(StoreVector.*)+(\\s){2}===.*)
         - Failed comparison: [found] 0 >= 1 [given]
         - No nodes matched!

>>> Check stdout for compilation output of the failed methods


  #############################################################
   - To only run the failed tests use -DTest, -DExclude,
     and/or -DScenarios.
   - To also get the standard output of the test VM run with
     -DReportStdout=true or for even more fine-grained logging
     use -DVerbose=true.
  #############################################################


compiler.lib.ir_framework.driver.irmatching.IRViolationException: There were one or multiple IR rule failures. Please check stderr for more information.
at compiler.lib.ir_framework.driver.irmatching.IRMatcher.throwIfNoSafepointWhilePrinting(IRMatcher.java:91)
at compiler.lib.ir_framework.driver.irmatching.IRMatcher.reportFailures(IRMatcher.java:82)
at compiler.lib.ir_framework.driver.irmatching.IRMatcher.applyIRRules(IRMatcher.java:54)
at compiler.lib.ir_framework.driver.irmatching.IRMatcher.<init>(IRMatcher.java:43)
at compiler.lib.ir_framework.TestFramework.runTestVM(TestFramework.java:729)
at compiler.lib.ir_framework.TestFramework.start(TestFramework.java:698)
at compiler.lib.ir_framework.TestFramework.start(TestFramework.java:329)
at compiler.lib.ir_framework.TestFramework.runWithFlags(TestFramework.java:237)
at compiler.vectorapi.VectorLogicalOpIdentityTest.main(VectorLogicalOpIdentityTest.java:510)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
at java.base/java.lang.reflect.Method.invoke(Method.java:578)
at com.sun.javatest.regtest.agent.MainWrapper$MainThread.run(MainWrapper.java:127)
at java.base/java.lang.Thread.run(Thread.java:1589)

JavaTest Message: Test threw exception: compiler.lib.ir_framework.driver.irmatching.IRViolationException: There were one or multiple IR rule failures. Please check stderr for more information.
JavaTest Message: shutting down test

STATUS:Failed.`main' threw exception: compiler.lib.ir_framework.driver.irmatching.IRViolationException: There were one or multiple IR rule failures. Please check stderr for more information.
----------rerun:(40/8663)*----------