src/cpu/ppc/vm/templateTable_ppc_64.cpp

rev 13142 : 8181809: PPC64: Leverage mtfprd/mffprd on POWER8
Reviewed-by: mdoerr, simonis
Contributed-by: Matthew Brandyberry <mbrandy@linux.vnet.ibm.com>

*** 1470,1486 ****
        break;
  
      case Bytecodes::_i2d:
        __ extsw(R17_tos, R17_tos);
      case Bytecodes::_l2d:
!       __ push_l_pop_d();
        __ fcfid(F15_ftos, F15_ftos);
        break;
  
      case Bytecodes::_i2f:
        __ extsw(R17_tos, R17_tos);
!       __ push_l_pop_d();
        if (VM_Version::has_fcfids()) { // fcfids is >= Power7 only
          // Comment: alternatively, load with sign extend could be done by lfiwax.
          __ fcfids(F15_ftos, F15_ftos);
        } else {
          __ fcfid(F15_ftos, F15_ftos);
--- 1470,1486 ----
        break;
  
      case Bytecodes::_i2d:
        __ extsw(R17_tos, R17_tos);
      case Bytecodes::_l2d:
!       __ move_l_to_d();
        __ fcfid(F15_ftos, F15_ftos);
        break;
  
      case Bytecodes::_i2f:
        __ extsw(R17_tos, R17_tos);
!       __ move_l_to_d();
        if (VM_Version::has_fcfids()) { // fcfids is >= Power7 only
          // Comment: alternatively, load with sign extend could be done by lfiwax.
          __ fcfids(F15_ftos, F15_ftos);
        } else {
          __ fcfid(F15_ftos, F15_ftos);
*** 1488,1498 ****
        }
        break;
  
      case Bytecodes::_l2f:
        if (VM_Version::has_fcfids()) { // fcfids is >= Power7 only
!         __ push_l_pop_d();
          __ fcfids(F15_ftos, F15_ftos);
        } else {
          // Avoid rounding problem when result should be 0x3f800001: need fixup code before fcfid+frsp.
          __ mr(R3_ARG1, R17_tos);
          __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::l2f));
--- 1488,1498 ----
        }
        break;
  
      case Bytecodes::_l2f:
        if (VM_Version::has_fcfids()) { // fcfids is >= Power7 only
!         __ move_l_to_d();
          __ fcfids(F15_ftos, F15_ftos);
        } else {
          // Avoid rounding problem when result should be 0x3f800001: need fixup code before fcfid+frsp.
          __ mr(R3_ARG1, R17_tos);
          __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::l2f));
*** 1512,1531 ****
      case Bytecodes::_f2i:
        __ fcmpu(CCR0, F15_ftos, F15_ftos);
        __ li(R17_tos, 0); // 0 in case of NAN
        __ bso(CCR0, done);
        __ fctiwz(F15_ftos, F15_ftos);
!       __ push_d_pop_l();
        break;
  
      case Bytecodes::_d2l:
      case Bytecodes::_f2l:
        __ fcmpu(CCR0, F15_ftos, F15_ftos);
        __ li(R17_tos, 0); // 0 in case of NAN
        __ bso(CCR0, done);
        __ fctidz(F15_ftos, F15_ftos);
!       __ push_d_pop_l();
        break;
  
      default: ShouldNotReachHere();
    }
    __ bind(done);
--- 1512,1531 ----
      case Bytecodes::_f2i:
        __ fcmpu(CCR0, F15_ftos, F15_ftos);
        __ li(R17_tos, 0); // 0 in case of NAN
        __ bso(CCR0, done);
        __ fctiwz(F15_ftos, F15_ftos);
!       __ move_d_to_l();
        break;
  
      case Bytecodes::_d2l:
      case Bytecodes::_f2l:
        __ fcmpu(CCR0, F15_ftos, F15_ftos);
        __ li(R17_tos, 0); // 0 in case of NAN
        __ bso(CCR0, done);
        __ fctidz(F15_ftos, F15_ftos);
!       __ move_d_to_l();
        break;
  
      default: ShouldNotReachHere();
    }
    __ bind(done);