src/share/vm/c1/c1_FrameMap.cpp

rev 5188 : 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.

*** 131,141 ****
        sig_bt[i + 1] = T_VOID;
        i++;
      }
    }
  
!   intptr_t out_preserve = SharedRuntime::c_calling_convention(sig_bt, regs, sizeargs);
    LIR_OprList* args = new LIR_OprList(signature->length());
    for (i = 0; i < sizeargs;) {
      BasicType t = sig_bt[i];
      assert(t != T_VOID, "should be skipping these");
  
--- 131,141 ----
        sig_bt[i + 1] = T_VOID;
        i++;
      }
    }
  
!   intptr_t out_preserve = SharedRuntime::c_calling_convention(sig_bt, regs, NULL, sizeargs);
    LIR_OprList* args = new LIR_OprList(signature->length());
    for (i = 0; i < sizeargs;) {
      BasicType t = sig_bt[i];
      assert(t != T_VOID, "should be skipping these");