src/hotspot/share/c1/c1_LIRAssembler.hpp

rev 50668 : PPC64: Add support for HW random number generator

Add support to use a hardware random number generator through new 'darn'
instruction introduced with POWER9 processor. That change introduces a new
JCA provider (called HWTRNG) with the proper methods to be intrinsified and
that are used, in the end, by generateSeed() and nextBytes() methods in
SecureRandom class when the HWTPRNG provider is selected. It also paves the
way to use a HW TRNG for other architectures that support it.

*** 251,260 ****
--- 251,261 ----
    void membar_storestore();
    void membar_loadstore();
    void membar_storeload();
    void on_spin_wait();
    void get_thread(LIR_Opr result);
+   void rng(LIR_Opr result);
  
    void verify_oop_map(CodeEmitInfo* info);
  
    void atomic_op(LIR_Code code, LIR_Opr src, LIR_Opr data, LIR_Opr dest, LIR_Opr tmp);