We run into test failures on our KVM based Linux Alpine x86_64 .

The test output says :
One or more @IR rules failed:

Failed IR Rules (2) of Methods (2)
----------------------------------
1) Method "static java.lang.Object[] compiler.loopopts.superword.TestCompatibleUseDefTypeSize.test3(int[],int[])" - [Failed IR rules: 1]:
   * @IR rule 1: "@compiler.lib.ir_framework.IR(phase={DEFAULT}, applyIfPlatformAnd={}, applyIfCPUFeatureOr={"sse4.1", "true", "asimd", "true"}, counts={"_#V#LOAD_VECTOR_I#_", "> 0", "_#V#ADD_VI#_", "> 0", "_#STORE_VECTOR#_", "> 0"}, failOn={}, applyIfPlatform={"64-bit", "true"}, applyIfPlatformOr={}, applyIfOr={}, applyIfCPUFeatureAnd={}, applyIf={}, applyIfCPUFeature={}, applyIfAnd={}, applyIfNot={})"
     > Phase "PrintIdeal":
       - counts: Graph contains wrong number of nodes:
         * Constraint 1: "(\\d+(\\s){2}(LoadVector.*)+(\\s){2}===.*vector[A-Za-z]\\[4\\]:\\{int\\})"
           - Failed comparison: [found] 0 > 0 [given]
           - No nodes matched!
         * Constraint 2: "(\\d+(\\s){2}(AddVI.*)+(\\s){2}===.*vector[A-Za-z]\\[4\\]:\\{int\\})"
           - Failed comparison: [found] 0 > 0 [given]
           - No nodes matched!
         * Constraint 3: "(\\d+(\\s){2}(StoreVector.*)+(\\s){2}===.*)"
           - Failed comparison: [found] 0 > 0 [given]
           - No nodes matched!

2) Method "static java.lang.Object[] compiler.loopopts.superword.TestCompatibleUseDefTypeSize.test4(int[],int[])" - [Failed IR rules: 1]:
   * @IR rule 1: "@compiler.lib.ir_framework.IR(phase={DEFAULT}, applyIfPlatformAnd={}, applyIfCPUFeatureOr={"sse4.1", "true", "asimd", "true"}, counts={"_#V#LOAD_VECTOR_I#_", "> 0", "_#V#ADD_VI#_", "> 0", "_#STORE_VECTOR#_", "> 0"}, failOn={}, applyIfPlatform={"64-bit", "true"}, applyIfPlatformOr={}, applyIfOr={}, applyIfCPUFeatureAnd={}, applyIf={}, applyIfCPUFeature={}, applyIfAnd={}, applyIfNot={})"
     > Phase "PrintIdeal":
       - counts: Graph contains wrong number of nodes:
         * Constraint 1: "(\\d+(\\s){2}(LoadVector.*)+(\\s){2}===.*vector[A-Za-z]\\[4\\]:\\{int\\})"
           - Failed comparison: [found] 0 > 0 [given]
           - No nodes matched!
         * Constraint 2: "(\\d+(\\s){2}(AddVI.*)+(\\s){2}===.*vector[A-Za-z]\\[4\\]:\\{int\\})"
           - Failed comparison: [found] 0 > 0 [given]
           - No nodes matched!
         * Constraint 3: "(\\d+(\\s){2}(StoreVector.*)+(\\s){2}===.*)"
           - Failed comparison: [found] 0 > 0 [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.reportFailures(IRMatcher.java:61)
at compiler.lib.ir_framework.driver.irmatching.IRMatcher.match(IRMatcher.java:49)
at compiler.lib.ir_framework.TestFramework.runTestVM(TestFramework.java:754)
at compiler.lib.ir_framework.TestFramework.start(TestFramework.java:719)
at compiler.lib.ir_framework.TestFramework.start(TestFramework.java:339)
at compiler.lib.ir_framework.TestFramework.run(TestFramework.java:223)
at compiler.lib.ir_framework.TestFramework.run(TestFramework.java:212)
at compiler.loopopts.superword.TestCompatibleUseDefTypeSize.main(TestCompatibleUseDefTypeSize.java:75)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
at java.base/java.lang.reflect.Method.invoke(Method.java:580)
at com.sun.javatest.regtest.agent.MainActionHelper$AgentVMRunnable.run(MainActionHelper.java:333)
at java.base/java.lang.Thread.run(Thread.java:1575)