8028767: PPC64: (part 121): smaller shared changes needed to build C2 Summary: smaller shared changes required to build the C2 compiler on PPC64. Reviewed-by: kvn

8028471: PPC64 (part 215): opto: Extend ImplicitNullCheck optimization. Summary: Fixed Implicit NULL check optimization for AIX, where the page at address '0' is only write-protected. Reviewed-by: kvn

Merge

8028580: PPC64 (part 114/120): Support for Call nodes with constants. Summary: extends MachCall nodes so that they can issue constants to the constant table Reviewed-by: kvn

8028514: PPC64: Fix C++ Interpreter after '7195622: CheckUnhandledOops has limited usefulness now' Summary: fix CPP-interpreter after CheckUnhandledOops was re-enabled in the fastdebug build Reviewed-by: kvn, dholmes, lfoltan

8028470: PPC64 (part 214): linux: extend signal handler to catch SIGTRAP on ppc64. Reviewed-by: kvn

8028401: PPC (part 117): Improve usability of adlc and format() functionality. Summary: Add additional, more verbose syntax checks in adlc. Fix printing constant's problem in format(). Reviewed-by: kvn

Merge

8024921: PPC64 (part 113): Extend Load and Store nodes to know about memory ordering Summary: Add a field to C2 LoadNode and StoreNode classes which indicates whether the load/store should do an acquire/release on platforms which support it. Reviewed-by: kvn

8003854: PPC64 (part 115): Introduce PostallocExpand that expands nodes after register allocation Summary: added ability in C2 to expand mach nodes to several mach nodes after register allocation Reviewed-by: kvn

8027968: Adapt PPC to 8024927: Nashorn performance regression with CompressedOops Reviewed-by: coleenp, kvn

8027969: Adapt PPC to 8026328: Setting a breakpoint on invokedynamic crashes the JVM Reviewed-by: dholmes, coleenp, sspitsyn

8027966: Adapt PPC to 8023657: New type profiling points: arguments to call Reviewed-by: dholmes

8027965: Adapt PPC to 8015107: NPG: Use consistent naming for metaspace concepts Reviewed-by: dholmes

8027964: Adapt PPC to 6843347: Boundary values in some public GC options cause crashes Reviewed-by: dholmes

Merge

8026487: PPC64: Implement 'os::fork_and_exec' on AIX Reviewed-by: kvn, twisti

8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling Summary: Implement profiling for c2 jit compilation. Also enable new cppInterpreter features. Reviewed-by: kvn

8024922: PPC64 (part 116): Extend adlc to generate fields into nodes. Summary: Similar to specifying functions returning constants (as ins_avoid_back_to_back()) adlc now accepts specifications with prefix ins_field_xxx(tp) and adds field xxx of type tp to the node. Reviewed-by: kvn

8024342: PPC64 (part 111): Support for C calling conventions that require 64-bit ints. Summary: Some platforms, as ppc and s390x/zArch require that 32-bit ints are passed as 64-bit values to C functions. This change adds support to adapt the signature and to issue proper casts to c2-compiled stubs. The functions are used in generate_native_wrapper(). Adapt signature used by the compiler as in PhaseIdealLoop::intrinsify_fill(). Reviewed-by: kvn

8024469: PPC64 (part 202): cppInterpreter: support for OSR. Summary: Call OSR migration with last java frame. Reviewed-by: kvn

8024344: PPC64 (part 112): C argument in register AND stack slot. Summary: On PPC, the first 13 floating point arguments to C calls are passed in floating point registers. Also, all but the first 8 arguments are passed on the stack. So there can be floating point arguments that are passed on the stack and in a register. We duplicate the regs datastructure in c_calling_convention() to represent this. Reviewed-by: kvn, cjplummer

8023038: PPC64 (part 15): Platform files for AIX/PPC64 support Reviewed-by: kvn

8023034: PPC64 (part 14): Implement AIX/PPC64 support in HotSpot makefiles Reviewed-by: kvn