src/hotspot/share/gc/shared/c2/barrierSetC2.hpp
changeset 57584 9d82a35b6ff7
parent 55543 448d63614b6b
parent 57582 a79a819a8218
child 58217 b1a394e15ae9
equal deleted inserted replaced
57570:d7304cf430f1 57584:9d82a35b6ff7
    40 // The atomic cmpxchg is weak, meaning that spurious false negatives are allowed,
    40 // The atomic cmpxchg is weak, meaning that spurious false negatives are allowed,
    41 // but never false positives.
    41 // but never false positives.
    42 const DecoratorSet C2_WEAK_CMPXCHG           = DECORATOR_LAST << 3;
    42 const DecoratorSet C2_WEAK_CMPXCHG           = DECORATOR_LAST << 3;
    43 // This denotes that a load has control dependency.
    43 // This denotes that a load has control dependency.
    44 const DecoratorSet C2_CONTROL_DEPENDENT_LOAD = DECORATOR_LAST << 4;
    44 const DecoratorSet C2_CONTROL_DEPENDENT_LOAD = DECORATOR_LAST << 4;
    45 // This denotes that a load that must be pinned.
    45 // This denotes that a load that must be pinned, but may float above safepoints.
    46 const DecoratorSet C2_PINNED_LOAD            = DECORATOR_LAST << 5;
    46 const DecoratorSet C2_UNKNOWN_CONTROL_LOAD   = DECORATOR_LAST << 5;
    47 // This denotes that the access is produced from the sun.misc.Unsafe intrinsics.
    47 // This denotes that the access is produced from the sun.misc.Unsafe intrinsics.
    48 const DecoratorSet C2_UNSAFE_ACCESS          = DECORATOR_LAST << 6;
    48 const DecoratorSet C2_UNSAFE_ACCESS          = DECORATOR_LAST << 6;
    49 // This denotes that the access mutates state.
    49 // This denotes that the access mutates state.
    50 const DecoratorSet C2_WRITE_ACCESS           = DECORATOR_LAST << 7;
    50 const DecoratorSet C2_WRITE_ACCESS           = DECORATOR_LAST << 7;
    51 // This denotes that the access reads state.
    51 // This denotes that the access reads state.