search for: mmo_iterator

The following code snippet taken from StackColoring::remapInstructions clears a mem operand if it can't guarantee whether the memoperand's underlying value aliases with the merged allocas: // Update the MachineMemOperand to use the new alloca. 522 for (MachineInstr::mmo_iterator MM = I->memoperands_begin(), .... // Climb up and find the original alloca. 532 V = GetUnderlyingObject(V); 533 // If we did not find one, or if the one that we found is not in our 534 // map, then move on. 535 if (!V || !isa<AllocaInst>(V)) {...

...s.uiuc.edu> The following code snippet taken from StackColoring::remapInstructions clears a mem operand if it can't guarantee whether the memoperand's underlying value aliases with the merged allocas: // Update the MachineMemOperand to use the new alloca. 522 for (MachineInstr::mmo_iterator MM = I->memoperands_begin(), .... // Climb up and find the original alloca. 532 V = GetUnderlyingObject(V); 533 // If we did not find one, or if the one that we found is not in our 534 // map, then move on. 535 if (!V || !isa<AllocaInst>(V)) {...

...owing code snippet taken from StackColoring::remapInstructions clears a > mem operand if it can't guarantee whether the memoperand's underlying value > aliases with the merged allocas: > > // Update the MachineMemOperand to use the new alloca. > 522 for (MachineInstr::mmo_iterator MM = I->memoperands_begin(), > .... > // Climb up and find the original alloca. > 532 V = GetUnderlyingObject(V); > 533 // If we did not find one, or if the one that we found is not in our > 534 // map, then move on. > 535 if (!...

...; SDNode* LDW = CurDAG->getMachineNode(AVR::LDWRdPtr, SDLoc(N), VT, PtrVT, MVT::Other, LD->getBasePtr(), LD->getChain()); // 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[]...

...; The following code snippet taken from StackColoring::remapInstructions clears a mem operand if it can't guarantee whether the memoperand's underlying value aliases with the merged allocas: > > // Update the MachineMemOperand to use the new alloca. > 522 for (MachineInstr::mmo_iterator MM = I->memoperands_begin(), > .... > // Climb up and find the original alloca. > 532 V = GetUnderlyingObject(V); > 533 // If we did not find one, or if the one that we found is not in our > 534 // map, then move on. > 535 if (!V ||...

...ing::**remapInstructions >> clears a >> mem operand if it can't guarantee whether the memoperand's underlying >> value >> aliases with the merged allocas: >> >> // Update the MachineMemOperand to use the new alloca. >> 522 for (MachineInstr::mmo_iterator MM = I->memoperands_begin(), >> .... >> // Climb up and find the original alloca. >> 532 V = GetUnderlyingObject(V); >> 533 // If we did not find one, or if the one that we found is >> not in our >> 534 // map, then move...

...ck *MBB) const + { + DebugLoc DL = MI->getDebugLoc(); + const TargetInstrInfo *TII = Subtarget->getInstrInfo(); + + MachineFunction *MF = MBB->getParent(); + MachineRegisterInfo &MRI = MF->getRegInfo(); + MachineInstrBuilder MIB; + + // Memory Reference + MachineInstr::mmo_iterator MMOBegin = MI->memoperands_begin(); + MachineInstr::mmo_iterator MMOEnd = MI->memoperands_end(); + + MVT PVT = getPointerTy(MF->getDataLayout()); + unsigned PtrSize = PVT.getStoreSize(); + assert(PVT == MVT::i32 && "Invalid Pointer Size!"); + + unsigned Buf = MI...

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

...// If we have mem operands, make sure that the sizes of the memoperands for each + // MI are the same. The values can be different, so lets only check the sizes. + // If the sizes between one of the memoperands differ, then the instructions are + // not identical. + for (MachineInstr::mmo_iterator mb1 = memoperands_begin(), mb2 = Other->memoperands_begin() + me = memoperands_end(); mb1 != me; ++mb1, ++mb2) { + if (mb1->getSize() != mb2->getSize() || + mb1->getFlags() != mb2->getFlags() || + mb1->getOffset() != mb2->getOffset()) { +...

...operands, make sure that the sizes of the memoperands for each > + // MI are the same. The values can be different, so lets only check the sizes. > + // If the sizes between one of the memoperands differ, then the instructions are > + // not identical. > + for (MachineInstr::mmo_iterator mb1 = memoperands_begin(), mb2 = Other->memoperands_begin() > + me = memoperands_end(); mb1 != me; ++mb1, ++mb2) { > + if (mb1->getSize() != mb2->getSize() || > + mb1->getFlags() != mb2->getFlags() || > + mb1->getOffset() != mb2->getO...

...rDAG->getMachineNode(AVR::LDWRdPtr, SDLoc(N), > VT, PtrVT, MVT::Other, > LD->getBasePtr(), LD->getChain()); > > // 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 > // ty...

We'd like to be able to vary the latency of our load instructions based on what address space is being loaded from. I was thinking I could do this by overriding getOperandLatency in our target, but I'm wondering if the addrspace info is available when instructions are scheduled? For example, I have this in our llvm IR: %0 = load i32 addrspace(4)* @answer, align 4 store i32 %0, i32*