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

8024379: Adapt PPC64 port to 8003424 Reviewed-by: coleenp

Merge