search for: setmemrefs

...0).getReg(); + unsigned JmpLoc = MRI.createVirtualRegister(&SP::IntRegsRegClass); + + // Instruction to load jmp location + MIB = BuildMI(*MBB, MI, DL, TII->get(SP::LDri)) + .addReg(JmpLoc, RegState::Define) + .addReg(Buf) + .addImm(PtrSize); + MIB.setMemRefs(MMOBegin, MMOEnd); + + // TO DO: If we do 64-bit handling, this perhaps should be FLUSHW, not TA 3 + const long int TRAP_COND_ALWAYS = 0x08; + MIB = BuildMI(*MBB, MI, DL, TII->get(SP::TRAPri), SP::G0).addImm(3).addImm(TRAP_COND_ALWAYS); + + // Instruction to restore FP + const unsigned...

Hi, I'm trying to implement __builtin_setjmp / __builtin_longjmp for Sparc processors. I think I'm very close, but I can't work out how to issue BuildMI-type instructions to load the address of the recovery location (set in setjmp) into a register using the SETHI / OR combination. I can't see any equivalent code anywhere else in Sparc. I imagine this is similar if I try to make a

...ifier because the newly created tBL insn by Thumb1InstrInfo::foldMemoryOperandImpl had memory operands of LoadMI attached by TargetInstrInfo::foldMemoryOperand, which is done unconditionally: // Copy the memoperands from the load to the folded instruction. if (MI.memoperands_empty()) { NewMI->setMemRefs(MF, LoadMI.memoperands()) In this case, we don't want the memory loads to be added to MI from LoadMI. Should there be some mechanism for target specific foldMemoryOperandImpl hook to signal to foldMemoryOperand to not add memory operands from LoadMI ? I was wondering if either of these approa...

.../ Honestly, I have no idea what this does, but other memory // accessing instructions have something similar... MachineSDNode::mmo_iterator MemOp = MF->allocateMemRefsArray(1); MemOp[0] = cast<MemSDNode>(N)->getMemOperand(); cast<MachineSDNode>(LDW)->setMemRefs(MemOp, MemOp + 1); // Reshuffle LDW's results so that the first two match LOAD's result // type SDValue Unpack[] = { SDValue(LDW, 0), SDValue(LDW, 2), SDValue(LDW, 1) }; SDNode* NN = CurDAG->getMergeValues(Unpack, SDLoc(N)).getNode(); ReplaceUses(N, N...

...BL insn by > Thumb1InstrInfo::foldMemoryOperandImpl had memory operands of LoadMI > attached by TargetInstrInfo::foldMemoryOperand, which is done > unconditionally: > > // Copy the memoperands from the load to the folded instruction. > if (MI.memoperands_empty()) { > NewMI->setMemRefs(MF, LoadMI.memoperands()) > > In this case, we don't want the memory loads to be added to MI from > LoadMI. Should there be some mechanism for target specific > foldMemoryOperandImpl hook to signal to foldMemoryOperand to not add > memory operands from LoadMI ? > > I was wo...

...ve no idea what this does, but other memory > // accessing instructions have something similar... > MachineSDNode::mmo_iterator MemOp = MF->allocateMemRefsArray(1); > MemOp[0] = cast<MemSDNode>(N)->getMemOperand(); > cast<MachineSDNode>(LDW)->setMemRefs(MemOp, MemOp + 1); > > // Reshuffle LDW's results so that the first two match LOAD's > result > // type > SDValue Unpack[] = { SDValue(LDW, 0), SDValue(LDW, 2), > SDValue(LDW, 1) }; > SDNode* NN = CurDAG->getMergeValues(Unpack, SDLoc(N)).get...