Profiling showed that during startup of some Java applications, significant time is spent in native code. The reason for that seem to be missing C1 intrinsics for java.lang.Class and jdk.internal.reflect.Reflection:

[0.875s][info][init] JVM_GetCallerClass = 4ms (18137 events)
[0.875s][info][init] JVM_FindClassFromBootLoader = 0ms ( 488 events)
[0.875s][info][init] JVM_FindClassFromCaller = 17ms ( 9883 events)
[0.875s][info][init] JVM_FindClassFromClass = 0ms ( 1 events)
[0.875s][info][init] JVM_InitClassName = 2ms ( 2082 events)
[0.875s][info][init] JVM_GetClassInterfaces = 0ms ( 16 events)
[0.875s][info][init] JVM_IsInterface = 0ms (12484 events)
[0.875s][info][init] JVM_IsArrayClass = 1ms (16368 events)
[0.875s][info][init] JVM_GetClassConstantPool = 1ms (13372 events)

_getCallerClass, _isInterface, _isArray are already intrinsified in C2.

We should identify potential candidates for intrinsification in C1.