Reviewed-by: stuefe, stefank

Summary: Fixed miscounting of virtual space node's free memory
Reviewed-by: shade, coleenp, stuefe

Summary: Bias compiler thread's resource area to mtCompiler
Reviewed-by: kvn, coleenp

Summary: Fixed memory counting in compiler (C2)
Reviewed-by: adinn, cjplummer, kvn

Summary: NMT detail allocation site comparison should compare sites with the same memory type
Reviewed-by: shade, coleenp

Summary: Show memory types of malloc site in detail report
Reviewed-by: dholmes, shade

Reviewed-by: kvn

8087291: InitialBootClassLoaderMetaspaceSize and CompressedClassSpaceSize should be checked consistent from MaxMetaspaceSize
Reviewed-by: dholmes, sspitsyn, poonam

Summary: Backed out changeset 62c8545a9b6f
Reviewed-by: asaha

8189599: InitialBootClassLoaderMetaspaceSize and CompressedClassSpaceSize should be checked consistent from MaxMetaspaceSize
Reviewed-by: dholmes, sspitsyn, poonam

Summary: Don't split if all edges will be moved to new phi
Reviewed-by: kvn

Reviewed-by: mdoerr, simonis
Contributed-by: NMatthew Brandyberry <mbrandy@linux.vnet.ibm.com>

Reviewed-by: ihse

Summary: Ignore error of intialization of C2 only variables
Reviewed-by: sla, dholmes

Reviewed-by: kvn

Summary: Set UseLoopCounter ergonomically if on-stack-replacement is enabled. Print warning.
Reviewed-by: kvn

Summary: CCP computes wrong type for CountedLoop iv Phi
Reviewed-by: kvn

Summary: Check for possible null-point dereference.
Reviewed-by: kvn

Reviewed-by: sla, dholmes

6651256: jstack: DeleteGlobalRef method call doesn't lead to descreasing of global refs count shown by jstack
Summary: jni_DeleteGlobalRef does not really release the jni handle, instead, set the handle point to JNIHandles::_deleted_handle which holds an oop instance (java/lang/Object) in Java heap and never be GC'ed. When counting number of global reference, it counts all the handles on the chain list, which includes the already deleted ones.
Reviewed-by: zgu, sla, coleenp
Contributed-by: yumin.qi@oracle.com