Summary: Added lower bound check for ValueMapInitialSize
Reviewed-by: kvn
Contributed-by: ygaevsky@azulsystems.com

Reviewed-by: tschatzl, jwilhelm

Summary: Changes in JDK-8038423 always initialize (zero out) virtual memory used for auxiliary data structures. This causes a footprint regression for G1 in startup benchmarks. This is because they do not touch that memory at all, so the operating system does not actually commit these pages. The fix is to, if the initialization value of the data structures matches the default value of just committed memory (=0), do not do anything.
Reviewed-by: jwilhelm, brutisso

Reviewed-by: tschatzl, mgerdin

Summary: Check that native memory is returned to the system when decommiting memory within the heap with G1.
Reviewed-by: tschatzl, jwilhelm
Contributed-by: NAndrey Zakharov <andrey.x.zakharov@oracle.com>

Reviewed-by: jmasa, stefank

Reviewed-by: jcoomes

Summary: fixed order of DeoptReason values declaration so now it matches the order used in jdk9 and the names order in Deoptimization::_trap_reason_name.
Reviewed-by: kvn

Reviewed-by: kvn

8052172: Evacuation failure handling in G1 does not evacuate all objects if -XX:-G1DeferredRSUpdate is set
Summary: Remove -XX:-G1DeferredRSUpdate functionality as it is racy. During evacuation failure handling, threads where evacuation failure handling occurred may try to add remembered sets to regions which remembered sets are currently being scanned. The iterator to handle the remembered set scan does not support addition of entries during scan and so may skip valid references.
Reviewed-by: iveresov, brutisso, mgerdin

Summary: Ergonomics updates flags for number of GC threads
Reviewed-by: tschatzl, jwilhelm
Contributed-by: sangheon.kim@oracle.com

8058536: java/lang/instrument/NativeMethodPrefixAgent.java fails due to VirtualMachineError: out of space in CodeCache for method handle intrinsic
Summary: Make sure MH intrinsics can be created before compiler instances
Reviewed-by: kvn

Reviewed-by: coleenp, minqi

Summary: ClassLoader for array klass set to null and not the class loader of the component type.
Reviewed-by: dcubed, ctornqvi

Reviewed-by: jcoomes

8058818: Allocation of more then 1G of memory using Unsafe.allocateMemory is still causing a fatal error on 32bit platforms
Summary: The assert was firing for NMT_Off and minimal too even though the size isn't used.
Reviewed-by: gtriantafill, dholmes

Summary: Provide promoted stack slots for floating-point registers in the SPARC c_calling_convention.
Reviewed-by: kvn, jrose, drchase

Reviewed-by: lfoltan, hseigel

Reviewed-by: brutisso, tschatzl

8058481: Test gc/class_unloading/TestCMSClassUnloadingDisabledHWM.java was removed, but TEST.groups still refers to it
Reviewed-by: tschatzl, fzhinkin, mgerdin

8058475: TestCMSClassUnloadingEnabledHWM.java fails with '.*CMS Initial Mark.*' missing from stdout/stderr
Reviewed-by: mgerdin, tschatzl, brutisso