7047954: VM crashes with assert(is_Mem()) failed Summary: cast constant array ptrs to bottom Reviewed-by: never

7044738: Loop unroll optimization causes incorrect result Summary: take into account memory dependencies when clonning nodes in clone_up_backedge_goo(). Reviewed-by: never

6990015: Incorrect Icache line size is used for 64 bit x86 Summary: correct Icache::line_size for x64 and add verification code into vm_version_x86. Reviewed-by: never, phh