src/cpu/x86/vm/x86_64.ad

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.

*** 2939,2949 ****
    %}
  
    c_calling_convention
    %{
      // This is obviously always outgoing
!     (void) SharedRuntime::c_calling_convention(sig_bt, regs, length);
    %}
  
    // Location of compiled Java return values.  Same as C for now.
    return_value
    %{
--- 2939,2949 ----
    %}
  
    c_calling_convention
    %{
      // This is obviously always outgoing
!     (void) SharedRuntime::c_calling_convention(sig_bt, regs, /*regs2=*/NULL, length);
    %}
  
    // Location of compiled Java return values.  Same as C for now.
    return_value
    %{