41 42 if (UseAVX < 3) { 43 int delta = XMMRegisterImpl::max_slots_per_register * XMMRegisterImpl::number_of_registers; 44 int bottom = ConcreteRegisterImpl::max_fpr; 45 int top = bottom + delta; 46 int middle = bottom + (delta / 2); 47 int xmm_slots = XMMRegisterImpl::max_slots_per_register; 48 int lower = xmm_slots / 2; 49 // mark bad every register that we cannot get to if AVX less than 3, we have all slots in the array 50 // Note: vm2opto is allocated to ConcreteRegisterImpl::number_of_registers 51 for (int i = bottom; i < middle; i += xmm_slots) { 52 for (OptoReg::Name j = OptoReg::Name(i + lower); j<OptoReg::Name(i + xmm_slots); j = OptoReg::add(j, 1)) { 53 OptoReg::invalidate(j); 54 } 55 } 56 // mark the upper zmm bank bad and all the mask registers bad in this case 57 for (OptoReg::Name i = OptoReg::Name(middle); i<OptoReg::Name(_last_Mach_Reg - 1); i = OptoReg::add(i, 1)) { 58 OptoReg::invalidate(i); 59 } 60 } 61 62 SuperWordLoopUnrollAnalysis = true; 63 } | 41 42 if (UseAVX < 3) { 43 int delta = XMMRegisterImpl::max_slots_per_register * XMMRegisterImpl::number_of_registers; 44 int bottom = ConcreteRegisterImpl::max_fpr; 45 int top = bottom + delta; 46 int middle = bottom + (delta / 2); 47 int xmm_slots = XMMRegisterImpl::max_slots_per_register; 48 int lower = xmm_slots / 2; 49 // mark bad every register that we cannot get to if AVX less than 3, we have all slots in the array 50 // Note: vm2opto is allocated to ConcreteRegisterImpl::number_of_registers 51 for (int i = bottom; i < middle; i += xmm_slots) { 52 for (OptoReg::Name j = OptoReg::Name(i + lower); j<OptoReg::Name(i + xmm_slots); j = OptoReg::add(j, 1)) { 53 OptoReg::invalidate(j); 54 } 55 } 56 // mark the upper zmm bank bad and all the mask registers bad in this case 57 for (OptoReg::Name i = OptoReg::Name(middle); i<OptoReg::Name(_last_Mach_Reg - 1); i = OptoReg::add(i, 1)) { 58 OptoReg::invalidate(i); 59 } 60 } 61 } |