Several compiler tests use -XX:+StressGCM and fail with
reason: User specified action: run main/othervm -XX:-BackgroundCompilation -XX:-UseOnStackReplacement -XX:+IgnoreUnrecognizedVMOptions -XX:+StressGCM TestEliminatedCastPPAtPhi
Mode: othervm [/othervm specified]
elapsed time (seconds): 0.009
----------configuration:(0/0)----------
----------System.out:(0/0)----------
----------System.err:(4/258)----------
Error: VM option 'StressGCM' is diagnostic and must be enabled via -XX:+UnlockDiagnosticVMOptions.
Error: The unlock option must precede 'StressGCM'.
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.

Rules
RULE "compiler/controldependency/TestEliminatedCastPPAtPhi.java" ExitCode 1

RULE "compiler/loopopts/TestPredicateLostDependency.java" ExitCode 1

RULE "compiler/membars/DekkerTest.java" ExitCode 1