compiler/c2/irTests/TestFewIterationsCountedLoop.java fails with "Did not find IR encoding"

The following test failed in the JDK19 CI:

compiler/c2/irTests/TestFewIterationsCountedLoop.java

Here's a snippet from the log file:

----------System.out:(34/12011)*----------
Run Flag VM:
Command line: [c:\\ade\\mesos\\work_dir\\jib-master\\install\\jdk-19+28-2097\\windows-x64-debug.jdk\\jdk-19\\fastdebug\\bin\\java.exe -cp C:\\sb\\prod\\1655802285\\testoutput\\test-support\\jtreg_open_test_hotspot_jtreg_tier1_compiler_1\\classes\\1\\compiler\\c2\\irTests\\TestFewIterationsCountedLoop.d;C:\\ade\\mesos\\work_dir\\jib-master\\install\\jdk-19+28-2097\\src.full\\open\\test\\hotspot\\jtreg\\compiler\\c2\\irTests;C:\\sb\\prod\\1655802285\\testoutput\\test-support\\jtreg_open_test_hotspot_jtreg_tier1_compiler_1\\classes\\1\\test\\lib;C:\\sb\\prod\\1655802285\\testoutput\\test-support\\jtreg_open_test_hotspot_jtreg_tier1_compiler_1\\classes\\1;C:\\ade\\mesos\\work_dir\\jib-master\\install\\jtreg\\6.1\\1\\bundles\\jtreg-6.1+1.zip\\jtreg\\lib\\javatest.jar;C:\\ade\\mesos\\work_dir\\jib-master\\install\\jtreg\\6.1\\1\\bundles\\jtreg-6.1+1.zip\\jtreg\\lib\\jtreg.jar;C:\\ade\\mesos\\work_dir\\jib-master\\install\\jtreg\\6.1\\1\\bundles\\jtreg-6.1+1.zip\\jtreg\\lib\\junit.jar;C:\\ade\\mesos\\work_dir\\jib-master\\install\\jtreg\\6.1\\1\\bundles\\jtreg-6.1+1.zip\\jtreg\\lib\\hamcrest.jar;C:\\ade\\mesos\\work_dir\\jib-master\\install\\jtreg\\6.1\\1\\bundles\\jtreg-6.1+1.zip\\jtreg\\lib\\testng.jar;C:\\ade\\mesos\\work_dir\\jib-master\\install\\jtreg\\6.1\\1\\bundles\\jtreg-6.1+1.zip\\jtreg\\lib\\jcommander.jar;C:\\ade\\mesos\\work_dir\\jib-master\\install\\jtreg\\6.1\\1\\bundles\\jtreg-6.1+1.zip\\jtreg\\lib\\guice.jar -XX:MaxRAMPercentage=4.16667 -Djava.io.tmpdir=c:\\sb\\prod\\1655802285\\testoutput\\test-support\\jtreg_open_test_hotspot_jtreg_tier1_compiler_1\\tmp -XX:+CreateCoredumpOnCrash -ea -esa -XX:CompileThreshold=100 -XX:+UnlockExperimentalVMOptions -server -XX:-TieredCompilation -Dtest.jdk=c:\\ade\\mesos\\work_dir\\jib-master\\install\\jdk-19+28-2097\\windows-x64-debug.jdk\\jdk-19\\fastdebug -Djava.library.path=c:\\ade\\mesos\\work_dir\\jib-master\\install\\jdk-19+28-2097\\windows-x64-debug.test\\hotspot\\jtreg\\native -cp C:\\sb\\prod\\1655802285\\testoutput\\test-support\\jtreg_open_test_hotspot_jtreg_tier1_compiler_1\\classes\\1\\compiler\\c2\\irTests\\TestFewIterationsCountedLoop.d;C:\\sb\\prod\\1655802285\\testoutput\\test-support\\jtreg_open_test_hotspot_jtreg_tier1_compiler_1\\classes\\1\\test\\lib;C:\\sb\\prod\\1655802285\\testoutput\\test-support\\jtreg_open_test_hotspot_jtreg_tier1_compiler_1\\classes\\1 -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:LoopUnrollLimit=0 compiler.lib.ir_framework.flag.FlagVM compiler.c2.irTests.TestFewIterationsCountedLoop ]
[2022-06-21T09:11:14.292048400Z] Gathering output for process 28076
[2022-06-21T09:11:15.806406800Z] Waiting for completion for process 28076
[2022-06-21T09:11:15.806406800Z] Waiting for completion finished for process 28076
Output and diagnostic info for process 28076 was saved into 'pid-28076-output.log'
[2022-06-21T09:11:15.819033900Z] Waiting for completion for process 28076
[2022-06-21T09:11:15.819033900Z] Waiting for completion finished for process 28076
Run Test VM - [-XX:LoopUnrollLimit=0]:
Command line: [c:\\ade\\mesos\\work_dir\\jib-master\\install\\jdk-19+28-2097\\windows-x64-debug.jdk\\jdk-19\\fastdebug\\bin\\java.exe -cp C:\\sb\\prod\\1655802285\\testoutput\\test-support\\jtreg_open_test_hotspot_jtreg_tier1_compiler_1\\classes\\1\\compiler\\c2\\irTests\\TestFewIterationsCountedLoop.d;C:\\ade\\mesos\\work_dir\\jib-master\\install\\jdk-19+28-2097\\src.full\\open\\test\\hotspot\\jtreg\\compiler\\c2\\irTests;C:\\sb\\prod\\1655802285\\testoutput\\test-support\\jtreg_open_test_hotspot_jtreg_tier1_compiler_1\\classes\\1\\test\\lib;C:\\sb\\prod\\1655802285\\testoutput\\test-support\\jtreg_open_test_hotspot_jtreg_tier1_compiler_1\\classes\\1;C:\\ade\\mesos\\work_dir\\jib-master\\install\\jtreg\\6.1\\1\\bundles\\jtreg-6.1+1.zip\\jtreg\\lib\\javatest.jar;C:\\ade\\mesos\\work_dir\\jib-master\\install\\jtreg\\6.1\\1\\bundles\\jtreg-6.1+1.zip\\jtreg\\lib\\jtreg.jar;C:\\ade\\mesos\\work_dir\\jib-master\\install\\jtreg\\6.1\\1\\bundles\\jtreg-6.1+1.zip\\jtreg\\lib\\junit.jar;C:\\ade\\mesos\\work_dir\\jib-master\\install\\jtreg\\6.1\\1\\bundles\\jtreg-6.1+1.zip\\jtreg\\lib\\hamcrest.jar;C:\\ade\\mesos\\work_dir\\jib-master\\install\\jtreg\\6.1\\1\\bundles\\jtreg-6.1+1.zip\\jtreg\\lib\\testng.jar;C:\\ade\\mesos\\work_dir\\jib-master\\install\\jtreg\\6.1\\1\\bundles\\jtreg-6.1+1.zip\\jtreg\\lib\\jcommander.jar;C:\\ade\\mesos\\work_dir\\jib-master\\install\\jtreg\\6.1\\1\\bundles\\jtreg-6.1+1.zip\\jtreg\\lib\\guice.jar -Djava.library.path=c:\\ade\\mesos\\work_dir\\jib-master\\install\\jdk-19+28-2097\\windows-x64-debug.test\\hotspot\\jtreg\\native -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:MaxRAMPercentage=4.16667 -Djava.io.tmpdir=c:\\sb\\prod\\1655802285\\testoutput\\test-support\\jtreg_open_test_hotspot_jtreg_tier1_compiler_1\\tmp -XX:+CreateCoredumpOnCrash -ea -esa -XX:+UnlockExperimentalVMOptions -server -XX:-TieredCompilation -Dir.framework.server.port=53045 -XX:LoopUnrollLimit=0 -XX:+PrintCompilation -XX:+UnlockDiagnosticVMOptions -XX:+LogCompilation -XX:CompileCommand=log,compiler.c2.irTests.TestFewIterationsCountedLoop::* -XX:CompileCommand=option,compiler.c2.irTests.TestFewIterationsCountedLoop::*,bool,PrintIdeal,true -XX:CompileCommand=option,compiler.c2.irTests.TestFewIterationsCountedLoop::*,bool,PrintOptoAssembly,true -XX:-OmitStackTraceInFastThrow -DShouldDoIRVerification=true -XX:-BackgroundCompilation -XX:CompileCommand=quiet compiler.lib.ir_framework.test.TestVM compiler.c2.irTests.TestFewIterationsCountedLoop ]
[2022-06-21T09:11:15.829118400Z] Gathering output for process 7920
[2022-06-21T09:11:17.482258600Z] Waiting for completion for process 7920
[2022-06-21T09:11:17.482258600Z] Waiting for completion finished for process 7920
Output and diagnostic info for process 7920 was saved into 'pid-7920-output.log'
[2022-06-21T09:11:17.482258600Z] Waiting for completion for process 7920
[2022-06-21T09:11:17.482258600Z] Waiting for completion finished for process 7920

Run Flag VM:
Command line: [c:\\ade\\mesos\\work_dir\\jib-master\\install\\jdk-19+28-2097\\windows-x64-debug.jdk\\jdk-19\\fastdebug\\bin\\java.exe -cp C:\\sb\\prod\\1655802285\\testoutput\\test-support\\jtreg_open_test_hotspot_jtreg_tier1_compiler_1\\classes\\1\\compiler\\c2\\irTests\\TestFewIterationsCountedLoop.d;C:\\ade\\mesos\\work_dir\\jib-master\\install\\jdk-19+28-2097\\src.full\\open\\test\\hotspot\\jtreg\\compiler\\c2\\irTests;C:\\sb\\prod\\1655802285\\testoutput\\test-support\\jtreg_open_test_hotspot_jtreg_tier1_compiler_1\\classes\\1\\test\\lib;C:\\sb\\prod\\1655802285\\testoutput\\test-support\\jtreg_open_test_hotspot_jtreg_tier1_compiler_1\\classes\\1;C:\\ade\\mesos\\work_dir\\jib-master\\install\\jtreg\\6.1\\1\\bundles\\jtreg-6.1+1.zip\\jtreg\\lib\\javatest.jar;C:\\ade\\mesos\\work_dir\\jib-master\\install\\jtreg\\6.1\\1\\bundles\\jtreg-6.1+1.zip\\jtreg\\lib\\jtreg.jar;C:\\ade\\mesos\\work_dir\\jib-master\\install\\jtreg\\6.1\\1\\bundles\\jtreg-6.1+1.zip\\jtreg\\lib\\junit.jar;C:\\ade\\mesos\\work_dir\\jib-master\\install\\jtreg\\6.1\\1\\bundles\\jtreg-6.1+1.zip\\jtreg\\lib\\hamcrest.jar;C:\\ade\\mesos\\work_dir\\jib-master\\install\\jtreg\\6.1\\1\\bundles\\jtreg-6.1+1.zip\\jtreg\\lib\\testng.jar;C:\\ade\\mesos\\work_dir\\jib-master\\install\\jtreg\\6.1\\1\\bundles\\jtreg-6.1+1.zip\\jtreg\\lib\\jcommander.jar;C:\\ade\\mesos\\work_dir\\jib-master\\install\\jtreg\\6.1\\1\\bundles\\jtreg-6.1+1.zip\\jtreg\\lib\\guice.jar -XX:MaxRAMPercentage=4.16667 -Djava.io.tmpdir=c:\\sb\\prod\\1655802285\\testoutput\\test-support\\jtreg_open_test_hotspot_jtreg_tier1_compiler_1\\tmp -XX:+CreateCoredumpOnCrash -ea -esa -XX:CompileThreshold=100 -XX:+UnlockExperimentalVMOptions -server -XX:-TieredCompilation -Dtest.jdk=c:\\ade\\mesos\\work_dir\\jib-master\\install\\jdk-19+28-2097\\windows-x64-debug.jdk\\jdk-19\\fastdebug -Djava.library.path=c:\\ade\\mesos\\work_dir\\jib-master\\install\\jdk-19+28-2097\\windows-x64-debug.test\\hotspot\\jtreg\\native -cp C:\\sb\\prod\\1655802285\\testoutput\\test-support\\jtreg_open_test_hotspot_jtreg_tier1_compiler_1\\classes\\1\\compiler\\c2\\irTests\\TestFewIterationsCountedLoop.d;C:\\sb\\prod\\1655802285\\testoutput\\test-support\\jtreg_open_test_hotspot_jtreg_tier1_compiler_1\\classes\\1\\test\\lib;C:\\sb\\prod\\1655802285\\testoutput\\test-support\\jtreg_open_test_hotspot_jtreg_tier1_compiler_1\\classes\\1 -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI compiler.lib.ir_framework.flag.FlagVM compiler.c2.irTests.TestFewIterationsCountedLoop ]
[2022-06-21T09:11:17.685390100Z] Gathering output for process 22708
[2022-06-21T09:11:20.722117100Z] Waiting for completion for process 22708
[2022-06-21T09:11:20.722117100Z] Waiting for completion finished for process 22708
Output and diagnostic info for process 22708 was saved into 'pid-22708-output.log'
[2022-06-21T09:11:20.722117100Z] Waiting for completion for process 22708
[2022-06-21T09:11:20.722117100Z] Waiting for completion finished for process 22708
Run Test VM:
Command line: [c:\\ade\\mesos\\work_dir\\jib-master\\install\\jdk-19+28-2097\\windows-x64-debug.jdk\\jdk-19\\fastdebug\\bin\\java.exe -cp C:\\sb\\prod\\1655802285\\testoutput\\test-support\\jtreg_open_test_hotspot_jtreg_tier1_compiler_1\\classes\\1\\compiler\\c2\\irTests\\TestFewIterationsCountedLoop.d;C:\\ade\\mesos\\work_dir\\jib-master\\install\\jdk-19+28-2097\\src.full\\open\\test\\hotspot\\jtreg\\compiler\\c2\\irTests;C:\\sb\\prod\\1655802285\\testoutput\\test-support\\jtreg_open_test_hotspot_jtreg_tier1_compiler_1\\classes\\1\\test\\lib;C:\\sb\\prod\\1655802285\\testoutput\\test-support\\jtreg_open_test_hotspot_jtreg_tier1_compiler_1\\classes\\1;C:\\ade\\mesos\\work_dir\\jib-master\\install\\jtreg\\6.1\\1\\bundles\\jtreg-6.1+1.zip\\jtreg\\lib\\javatest.jar;C:\\ade\\mesos\\work_dir\\jib-master\\install\\jtreg\\6.1\\1\\bundles\\jtreg-6.1+1.zip\\jtreg\\lib\\jtreg.jar;C:\\ade\\mesos\\work_dir\\jib-master\\install\\jtreg\\6.1\\1\\bundles\\jtreg-6.1+1.zip\\jtreg\\lib\\junit.jar;C:\\ade\\mesos\\work_dir\\jib-master\\install\\jtreg\\6.1\\1\\bundles\\jtreg-6.1+1.zip\\jtreg\\lib\\hamcrest.jar;C:\\ade\\mesos\\work_dir\\jib-master\\install\\jtreg\\6.1\\1\\bundles\\jtreg-6.1+1.zip\\jtreg\\lib\\testng.jar;C:\\ade\\mesos\\work_dir\\jib-master\\install\\jtreg\\6.1\\1\\bundles\\jtreg-6.1+1.zip\\jtreg\\lib\\jcommander.jar;C:\\ade\\mesos\\work_dir\\jib-master\\install\\jtreg\\6.1\\1\\bundles\\jtreg-6.1+1.zip\\jtreg\\lib\\guice.jar -Djava.library.path=c:\\ade\\mesos\\work_dir\\jib-master\\install\\jdk-19+28-2097\\windows-x64-debug.test\\hotspot\\jtreg\\native -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:MaxRAMPercentage=4.16667 -Djava.io.tmpdir=c:\\sb\\prod\\1655802285\\testoutput\\test-support\\jtreg_open_test_hotspot_jtreg_tier1_compiler_1\\tmp -XX:+CreateCoredumpOnCrash -ea -esa -XX:+UnlockExperimentalVMOptions -server -XX:-TieredCompilation -Dir.framework.server.port=53055 -XX:+PrintCompilation -XX:+UnlockDiagnosticVMOptions -XX:+LogCompilation -XX:CompileCommand=log,compiler.c2.irTests.TestFewIterationsCountedLoop::* -XX:CompileCommand=option,compiler.c2.irTests.TestFewIterationsCountedLoop::*,bool,PrintIdeal,true -XX:CompileCommand=option,compiler.c2.irTests.TestFewIterationsCountedLoop::*,bool,PrintOptoAssembly,true -XX:-OmitStackTraceInFastThrow -DShouldDoIRVerification=true -XX:-BackgroundCompilation -XX:CompileCommand=quiet compiler.lib.ir_framework.test.TestVM compiler.c2.irTests.TestFewIterationsCountedLoop ]
[2022-06-21T09:11:20.737744400Z] Gathering output for process 26204
[2022-06-21T09:11:22.712401600Z] Waiting for completion for process 26204
[2022-06-21T09:11:22.712401600Z] Waiting for completion finished for process 26204
Output and diagnostic info for process 26204 was saved into 'pid-26204-output.log'
[2022-06-21T09:13:07.156611100Z] Waiting for completion for process 26204
[2022-06-21T09:13:07.156611100Z] Waiting for completion finished for process 26204

----------System.err:(23/1805)----------
compiler.lib.ir_framework.shared.TestFrameworkException: Internal Test Framework exception - please file a bug:
Did not find IR encoding
at compiler.lib.ir_framework.TestFramework.check(TestFramework.java:745)
at compiler.lib.ir_framework.driver.irmatching.parser.IREncodingParser.getIREncodingLines(IREncodingParser.java:101)
at compiler.lib.ir_framework.driver.irmatching.parser.IREncodingParser.parseIREncoding(IREncodingParser.java:82)
at compiler.lib.ir_framework.driver.irmatching.parser.IREncodingParser.createCompilationsMap(IREncodingParser.java:73)
at compiler.lib.ir_framework.driver.irmatching.parser.IREncodingParser.parseIRMethods(IREncodingParser.java:63)
at compiler.lib.ir_framework.driver.irmatching.parser.IRMethodParser.parse(IRMethodParser.java:51)
at compiler.lib.ir_framework.driver.irmatching.IRMatcher.<init>(IRMatcher.java:41)
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.run(TestFramework.java:215)
at compiler.lib.ir_framework.TestFramework.run(TestFramework.java:204)
at compiler.c2.irTests.TestFewIterationsCountedLoop.main(TestFewIterationsCountedLoop.java:41)
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.MainActionHelper$AgentVMRunnable.run(MainActionHelper.java:312)
at java.base/java.lang.Thread.run(Thread.java:1596)

JavaTest Message: Test threw exception: compiler.lib.ir_framework.shared.TestFrameworkException
JavaTest Message: shutting down test

result: Failed. Execution failed: `main' threw exception: compiler.lib.ir_framework.shared.TestFrameworkException: Internal Test Framework exception - please file a bug: Did not find IR encoding