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Basic x86 code generation for atomic load and store instructions.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138478 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eli Friedman 2011-08-24 20:50:09 +00:00
parent b05fdd6bab
commit 327236cd6c
10 changed files with 254 additions and 29 deletions
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22
include/llvm/CodeGen/ISDOpcodes.h
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@ -597,22 +597,22 @@ namespace ISD {
// two integer constants: an AtomicOrdering and a SynchronizationScope.
ATOMIC_FENCE,
// Val, OUTCHAIN = ATOMIC_LOAD(INCHAIN, ptr)
// This corresponds to "load atomic" instruction.
ATOMIC_LOAD,
// OUTCHAIN = ATOMIC_LOAD(INCHAIN, ptr, val)
// This corresponds to "store atomic" instruction.
ATOMIC_STORE,
// Val, OUTCHAIN = ATOMIC_CMP_SWAP(INCHAIN, ptr, cmp, swap)
// this corresponds to the atomic.lcs intrinsic.
// cmp is compared to *ptr, and if equal, swap is stored in *ptr.
// the return is always the original value in *ptr
// This corresponds to the cmpxchg instruction.
ATOMIC_CMP_SWAP,
// Val, OUTCHAIN = ATOMIC_SWAP(INCHAIN, ptr, amt)
// this corresponds to the atomic.swap intrinsic.
// amt is stored to *ptr atomically.
// the return is always the original value in *ptr
ATOMIC_SWAP,
// Val, OUTCHAIN = ATOMIC_LOAD_[OpName](INCHAIN, ptr, amt)
// this corresponds to the atomic.load.[OpName] intrinsic.
// op(*ptr, amt) is stored to *ptr atomically.
// the return is always the original value in *ptr
// These correspond to the atomicrmw instruction.
ATOMIC_SWAP,
ATOMIC_LOAD_ADD,
ATOMIC_LOAD_SUB,
ATOMIC_LOAD_AND,

20
include/llvm/CodeGen/SelectionDAG.h
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@ -598,16 +598,26 @@ public:
AtomicOrdering Ordering,
SynchronizationScope SynchScope);
/// getAtomic - Gets a node for an atomic op, produces result and chain and
/// takes 2 operands.
/// getAtomic - Gets a node for an atomic op, produces result (if relevant)
/// and chain and takes 2 operands.
SDValue getAtomic(unsigned Opcode, DebugLoc dl, EVT MemVT, SDValue Chain,
SDValue Ptr, SDValue Val, const Value* PtrVal,
unsigned Alignment, AtomicOrdering Ordering,
SynchronizationScope SynchScope);
SDValue getAtomic(unsigned Opcode, DebugLoc dl, EVT MemVT, SDValue Chain,
SDValue Ptr, SDValue Val, MachineMemOperand *MMO,
AtomicOrdering Ordering,
SynchronizationScope SynchScope);
/// getAtomic - Gets a node for an atomic op, produces result and chain and
/// takes 1 operand.
SDValue getAtomic(unsigned Opcode, DebugLoc dl, EVT MemVT, EVT VT,
SDValue Chain, SDValue Ptr, const Value* PtrVal,
unsigned Alignment,
AtomicOrdering Ordering,
SynchronizationScope SynchScope);
SDValue getAtomic(unsigned Opcode, DebugLoc dl, EVT MemVT, SDValue Chain,
SDValue Ptr, SDValue Val,
MachineMemOperand *MMO,
SDValue getAtomic(unsigned Opcode, DebugLoc dl, EVT MemVT, EVT VT,
SDValue Chain, SDValue Ptr, MachineMemOperand *MMO,
AtomicOrdering Ordering,
SynchronizationScope SynchScope);

14
include/llvm/CodeGen/SelectionDAGNodes.h
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@ -976,6 +976,8 @@ public:
N->getOpcode() == ISD::ATOMIC_LOAD_MAX ||
N->getOpcode() == ISD::ATOMIC_LOAD_UMIN ||
N->getOpcode() == ISD::ATOMIC_LOAD_UMAX ||
N->getOpcode() == ISD::ATOMIC_LOAD ||
N->getOpcode() == ISD::ATOMIC_STORE ||
N->isTargetMemoryOpcode();
}
};
@ -1025,6 +1027,14 @@ public:
InitAtomic(Ordering, SynchScope);
InitOperands(Ops, Chain, Ptr, Val);
}
AtomicSDNode(unsigned Opc, DebugLoc dl, SDVTList VTL, EVT MemVT,
SDValue Chain, SDValue Ptr,
MachineMemOperand *MMO,
AtomicOrdering Ordering, SynchronizationScope SynchScope)
: MemSDNode(Opc, dl, VTL, MemVT, MMO) {
InitAtomic(Ordering, SynchScope);
InitOperands(Ops, Chain, Ptr);
}
const SDValue &getBasePtr() const { return getOperand(1); }
const SDValue &getVal() const { return getOperand(2); }
@ -1048,7 +1058,9 @@ public:
N->getOpcode() == ISD::ATOMIC_LOAD_MIN ||
N->getOpcode() == ISD::ATOMIC_LOAD_MAX ||
N->getOpcode() == ISD::ATOMIC_LOAD_UMIN ||
N->getOpcode() == ISD::ATOMIC_LOAD_UMAX;
N->getOpcode() == ISD::ATOMIC_LOAD_UMAX ||
N->getOpcode() == ISD::ATOMIC_LOAD ||
N->getOpcode() == ISD::ATOMIC_STORE;
}
};

32
include/llvm/Target/TargetSelectionDAG.td
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@ -214,6 +214,12 @@ def SDTAtomic3 : SDTypeProfile<1, 3, [
def SDTAtomic2 : SDTypeProfile<1, 2, [
SDTCisSameAs<0,2>, SDTCisInt<0>, SDTCisPtrTy<1>
]>;
def SDTAtomicStore : SDTypeProfile<0, 2, [
SDTCisPtrTy<0>, SDTCisInt<1>
]>;
def SDTAtomicLoad : SDTypeProfile<1, 1, [
SDTCisInt<0>, SDTCisPtrTy<1>
]>;
def SDTConvertOp : SDTypeProfile<1, 5, [ //cvtss, su, us, uu, ff, fs, fu, sf, su
SDTCisVT<2, OtherVT>, SDTCisVT<3, OtherVT>, SDTCisPtrTy<4>, SDTCisPtrTy<5>
@ -427,6 +433,10 @@ def atomic_load_umin : SDNode<"ISD::ATOMIC_LOAD_UMIN", SDTAtomic2,
[SDNPHasChain, SDNPMayStore, SDNPMayLoad, SDNPMemOperand]>;
def atomic_load_umax : SDNode<"ISD::ATOMIC_LOAD_UMAX", SDTAtomic2,
[SDNPHasChain, SDNPMayStore, SDNPMayLoad, SDNPMemOperand]>;
def atomic_load : SDNode<"ISD::ATOMIC_LOAD", SDTAtomicLoad,
[SDNPHasChain, SDNPMayStore, SDNPMayLoad, SDNPMemOperand]>;
def atomic_store : SDNode<"ISD::ATOMIC_STORE", SDTAtomicStore,
[SDNPHasChain, SDNPMayStore, SDNPMayLoad, SDNPMemOperand]>;
// Do not use ld, st directly. Use load, extload, sextload, zextload, store,
// and truncst (see below).
@ -844,6 +854,28 @@ defm atomic_load_min : binary_atomic_op<atomic_load_min>;
defm atomic_load_max : binary_atomic_op<atomic_load_max>;
defm atomic_load_umin : binary_atomic_op<atomic_load_umin>;
defm atomic_load_umax : binary_atomic_op<atomic_load_umax>;
defm atomic_store : binary_atomic_op<atomic_store>;
def atomic_load_8 :
PatFrag<(ops node:$ptr),
(atomic_load node:$ptr), [{
return cast<AtomicSDNode>(N)->getMemoryVT() == MVT::i8;
}]>;
def atomic_load_16 :
PatFrag<(ops node:$ptr),
(atomic_load node:$ptr), [{
return cast<AtomicSDNode>(N)->getMemoryVT() == MVT::i16;
}]>;
def atomic_load_32 :
PatFrag<(ops node:$ptr),
(atomic_load node:$ptr), [{
return cast<AtomicSDNode>(N)->getMemoryVT() == MVT::i32;
}]>;
def atomic_load_64 :
PatFrag<(ops node:$ptr),
(atomic_load node:$ptr), [{
return cast<AtomicSDNode>(N)->getMemoryVT() == MVT::i64;
}]>;
//===----------------------------------------------------------------------===//
// Selection DAG CONVERT_RNDSAT patterns

5
lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
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@ -819,6 +819,11 @@ SDValue SelectionDAGLegalize::LegalizeOp(SDValue Op) {
Action = TLI.getOperationAction(Node->getOpcode(), InnerType);
break;
}
case ISD::ATOMIC_STORE: {
Action = TLI.getOperationAction(Node->getOpcode(),
Node->getOperand(2).getValueType());
break;
}
case ISD::SELECT_CC:
case ISD::SETCC:
case ISD::BR_CC: {

61
lib/CodeGen/SelectionDAG/SelectionDAG.cpp
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@ -432,7 +432,9 @@ static void AddNodeIDCustom(FoldingSetNodeID &ID, const SDNode *N) {
case ISD::ATOMIC_LOAD_MIN:
case ISD::ATOMIC_LOAD_MAX:
case ISD::ATOMIC_LOAD_UMIN:
case ISD::ATOMIC_LOAD_UMAX: {
case ISD::ATOMIC_LOAD_UMAX:
case ISD::ATOMIC_LOAD:
case ISD::ATOMIC_STORE: {
const AtomicSDNode *AT = cast<AtomicSDNode>(N);
ID.AddInteger(AT->getMemoryVT().getRawBits());
ID.AddInteger(AT->getRawSubclassData());
@ -3904,12 +3906,14 @@ SDValue SelectionDAG::getAtomic(unsigned Opcode, DebugLoc dl, EVT MemVT,
Opcode == ISD::ATOMIC_LOAD_MAX ||
Opcode == ISD::ATOMIC_LOAD_UMIN ||
Opcode == ISD::ATOMIC_LOAD_UMAX ||
Opcode == ISD::ATOMIC_SWAP) &&
Opcode == ISD::ATOMIC_SWAP ||
Opcode == ISD::ATOMIC_STORE) &&
"Invalid Atomic Op");
EVT VT = Val.getValueType();
SDVTList VTs = getVTList(VT, MVT::Other);
SDVTList VTs = Opcode == ISD::ATOMIC_STORE ? getVTList(MVT::Other) :
getVTList(VT, MVT::Other);
FoldingSetNodeID ID;
ID.AddInteger(MemVT.getRawBits());
SDValue Ops[] = {Chain, Ptr, Val};
@ -3927,6 +3931,55 @@ SDValue SelectionDAG::getAtomic(unsigned Opcode, DebugLoc dl, EVT MemVT,
return SDValue(N, 0);
}
SDValue SelectionDAG::getAtomic(unsigned Opcode, DebugLoc dl, EVT MemVT,
EVT VT, SDValue Chain,
SDValue Ptr,
const Value* PtrVal,
unsigned Alignment,
AtomicOrdering Ordering,
SynchronizationScope SynchScope) {
if (Alignment == 0) // Ensure that codegen never sees alignment 0
Alignment = getEVTAlignment(MemVT);
MachineFunction &MF = getMachineFunction();
unsigned Flags = MachineMemOperand::MOLoad | MachineMemOperand::MOStore;
// For now, atomics are considered to be volatile always.
Flags |= MachineMemOperand::MOVolatile;
MachineMemOperand *MMO =
MF.getMachineMemOperand(MachinePointerInfo(PtrVal), Flags,
MemVT.getStoreSize(), Alignment);
return getAtomic(Opcode, dl, MemVT, VT, Chain, Ptr, MMO,
Ordering, SynchScope);
}
SDValue SelectionDAG::getAtomic(unsigned Opcode, DebugLoc dl, EVT MemVT,
EVT VT, SDValue Chain,
SDValue Ptr,
MachineMemOperand *MMO,
AtomicOrdering Ordering,
SynchronizationScope SynchScope) {
assert(Opcode == ISD::ATOMIC_LOAD && "Invalid Atomic Op");
SDVTList VTs = getVTList(VT, MVT::Other);
FoldingSetNodeID ID;
ID.AddInteger(MemVT.getRawBits());
SDValue Ops[] = {Chain, Ptr};
AddNodeIDNode(ID, Opcode, VTs, Ops, 2);
void* IP = 0;
if (SDNode *E = CSEMap.FindNodeOrInsertPos(ID, IP)) {
cast<AtomicSDNode>(E)->refineAlignment(MMO);
return SDValue(E, 0);
}
SDNode *N = new (NodeAllocator) AtomicSDNode(Opcode, dl, VTs, MemVT, Chain,
Ptr, MMO, Ordering, SynchScope);
CSEMap.InsertNode(N, IP);
AllNodes.push_back(N);
return SDValue(N, 0);
}
/// getMergeValues - Create a MERGE_VALUES node from the given operands.
SDValue SelectionDAG::getMergeValues(const SDValue *Ops, unsigned NumOps,
DebugLoc dl) {
@ -5795,6 +5848,8 @@ std::string SDNode::getOperationName(const SelectionDAG *G) const {
case ISD::ATOMIC_LOAD_MAX: return "AtomicLoadMax";
case ISD::ATOMIC_LOAD_UMIN: return "AtomicLoadUMin";
case ISD::ATOMIC_LOAD_UMAX: return "AtomicLoadUMax";
case ISD::ATOMIC_LOAD: return "AtomicLoad";
case ISD::ATOMIC_STORE: return "AtomicStore";
case ISD::PCMARKER: return "PCMarker";
case ISD::READCYCLECOUNTER: return "ReadCycleCounter";
case ISD::SRCVALUE: return "SrcValue";

89
lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
View File

@ -3149,6 +3149,9 @@ void SelectionDAGBuilder::visitAlloca(const AllocaInst &I) {
}
void SelectionDAGBuilder::visitLoad(const LoadInst &I) {
if (I.isAtomic())
return visitAtomicLoad(I);
const Value *SV = I.getOperand(0);
SDValue Ptr = getValue(SV);
@ -3226,6 +3229,9 @@ void SelectionDAGBuilder::visitLoad(const LoadInst &I) {
}
void SelectionDAGBuilder::visitStore(const StoreInst &I) {
if (I.isAtomic())
return visitAtomicStore(I);
const Value *SrcV = I.getOperand(0);
const Value *PtrV = I.getOperand(1);
@ -3277,6 +3283,7 @@ void SelectionDAGBuilder::visitStore(const StoreInst &I) {
}
static SDValue InsertFenceForAtomic(SDValue Chain, AtomicOrdering Order,
SynchronizationScope Scope,
bool Before, DebugLoc dl,
SelectionDAG &DAG,
const TargetLowering &TLI) {
@ -3294,19 +3301,21 @@ static SDValue InsertFenceForAtomic(SDValue Chain, AtomicOrdering Order,
}
SDValue Ops[3];
Ops[0] = Chain;
Ops[1] = DAG.getConstant(SequentiallyConsistent, TLI.getPointerTy());
Ops[2] = DAG.getConstant(Order, TLI.getPointerTy());
Ops[1] = DAG.getConstant(Order, TLI.getPointerTy());
Ops[2] = DAG.getConstant(Scope, TLI.getPointerTy());
return DAG.getNode(ISD::ATOMIC_FENCE, dl, MVT::Other, Ops, 3);
}
void SelectionDAGBuilder::visitAtomicCmpXchg(const AtomicCmpXchgInst &I) {
DebugLoc dl = getCurDebugLoc();
AtomicOrdering Order = I.getOrdering();
SynchronizationScope Scope = I.getSynchScope();
SDValue InChain = getRoot();
if (TLI.getInsertFencesForAtomic())
InChain = InsertFenceForAtomic(InChain, Order, true, dl, DAG, TLI);
InChain = InsertFenceForAtomic(InChain, Order, Scope, true, dl,
DAG, TLI);
SDValue L =
DAG.getAtomic(ISD::ATOMIC_CMP_SWAP, dl,
@ -3316,12 +3325,14 @@ void SelectionDAGBuilder::visitAtomicCmpXchg(const AtomicCmpXchgInst &I) {
getValue(I.getCompareOperand()),
getValue(I.getNewValOperand()),
MachinePointerInfo(I.getPointerOperand()), 0 /* Alignment */,
I.getOrdering(), I.getSynchScope());
TLI.getInsertFencesForAtomic() ? Monotonic : Order,
Scope);
SDValue OutChain = L.getValue(1);
if (TLI.getInsertFencesForAtomic())
OutChain = InsertFenceForAtomic(OutChain, Order, false, dl, DAG, TLI);
OutChain = InsertFenceForAtomic(OutChain, Order, Scope, false, dl,
DAG, TLI);
setValue(&I, L);
DAG.setRoot(OutChain);
@ -3345,11 +3356,13 @@ void SelectionDAGBuilder::visitAtomicRMW(const AtomicRMWInst &I) {
case AtomicRMWInst::UMin: NT = ISD::ATOMIC_LOAD_UMIN; break;
}
AtomicOrdering Order = I.getOrdering();
SynchronizationScope Scope = I.getSynchScope();
SDValue InChain = getRoot();
if (TLI.getInsertFencesForAtomic())
InChain = InsertFenceForAtomic(InChain, Order, true, dl, DAG, TLI);
InChain = InsertFenceForAtomic(InChain, Order, Scope, true, dl,
DAG, TLI);
SDValue L =
DAG.getAtomic(NT, dl,
@ -3359,12 +3372,13 @@ void SelectionDAGBuilder::visitAtomicRMW(const AtomicRMWInst &I) {
getValue(I.getValOperand()),
I.getPointerOperand(), 0 /* Alignment */,
TLI.getInsertFencesForAtomic() ? Monotonic : Order,
I.getSynchScope());
Scope);
SDValue OutChain = L.getValue(1);
if (TLI.getInsertFencesForAtomic())
OutChain = InsertFenceForAtomic(OutChain, Order, false, dl, DAG, TLI);
OutChain = InsertFenceForAtomic(OutChain, Order, Scope, false, dl,
DAG, TLI);
setValue(&I, L);
DAG.setRoot(OutChain);
@ -3379,6 +3393,65 @@ void SelectionDAGBuilder::visitFence(const FenceInst &I) {
DAG.setRoot(DAG.getNode(ISD::ATOMIC_FENCE, dl, MVT::Other, Ops, 3));
}
void SelectionDAGBuilder::visitAtomicLoad(const LoadInst &I) {
DebugLoc dl = getCurDebugLoc();
AtomicOrdering Order = I.getOrdering();
SynchronizationScope Scope = I.getSynchScope();
SDValue InChain = getRoot();
if (TLI.getInsertFencesForAtomic())
InChain = InsertFenceForAtomic(InChain, Order, Scope, true, dl,
DAG, TLI);
EVT VT = EVT::getEVT(I.getType());
SDValue L =
DAG.getAtomic(ISD::ATOMIC_LOAD, dl, VT, VT, InChain,
getValue(I.getPointerOperand()),
I.getPointerOperand(), I.getAlignment(),
TLI.getInsertFencesForAtomic() ? Monotonic : Order,
Scope);
SDValue OutChain = L.getValue(1);
if (TLI.getInsertFencesForAtomic())
OutChain = InsertFenceForAtomic(OutChain, Order, Scope, false, dl,
DAG, TLI);
setValue(&I, L);
DAG.setRoot(OutChain);
}
void SelectionDAGBuilder::visitAtomicStore(const StoreInst &I) {
DebugLoc dl = getCurDebugLoc();
AtomicOrdering Order = I.getOrdering();
SynchronizationScope Scope = I.getSynchScope();
SDValue InChain = getRoot();
if (TLI.getInsertFencesForAtomic())
InChain = InsertFenceForAtomic(InChain, Order, Scope, true, dl,
DAG, TLI);
SDValue OutChain =
DAG.getAtomic(ISD::ATOMIC_STORE, dl,
getValue(I.getValueOperand()).getValueType().getSimpleVT(),
InChain,
getValue(I.getPointerOperand()),
getValue(I.getValueOperand()),
I.getPointerOperand(), I.getAlignment(),
TLI.getInsertFencesForAtomic() ? Monotonic : Order,
Scope);
if (TLI.getInsertFencesForAtomic())
OutChain = InsertFenceForAtomic(OutChain, Order, Scope, false, dl,
DAG, TLI);
DAG.setRoot(OutChain);
}
/// visitTargetIntrinsic - Lower a call of a target intrinsic to an INTRINSIC
/// node.
void SelectionDAGBuilder::visitTargetIntrinsic(const CallInst &I,

4
lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h
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@ -526,7 +526,9 @@ private:
void visitPHI(const PHINode &I);
void visitCall(const CallInst &I);
bool visitMemCmpCall(const CallInst &I);
void visitAtomicLoad(const LoadInst &I);
void visitAtomicStore(const StoreInst &I);
void visitInlineAsm(ImmutableCallSite CS);
const char *visitIntrinsicCall(const CallInst &I, unsigned Intrinsic);
void visitTargetIntrinsic(const CallInst &I, unsigned Intrinsic);

22
lib/Target/X86/X86ISelLowering.cpp
View File

@ -464,6 +464,7 @@ X86TargetLowering::X86TargetLowering(X86TargetMachine &TM)
MVT VT = IntVTs[i];
setOperationAction(ISD::ATOMIC_CMP_SWAP, VT, Custom);
setOperationAction(ISD::ATOMIC_LOAD_SUB, VT, Custom);
setOperationAction(ISD::ATOMIC_STORE, VT, Custom);
}
if (!Subtarget->is64Bit()) {
@ -9999,6 +10000,26 @@ SDValue X86TargetLowering::LowerLOAD_SUB(SDValue Op, SelectionDAG &DAG) const {
cast<AtomicSDNode>(Node)->getSynchScope());
}
static SDValue LowerATOMIC_STORE(SDValue Op, SelectionDAG &DAG) {
SDNode *Node = Op.getNode();
DebugLoc dl = Node->getDebugLoc();
// Convert seq_cst store -> xchg
if (cast<AtomicSDNode>(Node)->getOrdering() == SequentiallyConsistent) {
SDValue Swap = DAG.getAtomic(ISD::ATOMIC_SWAP, dl,
cast<AtomicSDNode>(Node)->getMemoryVT(),
Node->getOperand(0),
Node->getOperand(1), Node->getOperand(2),
cast<AtomicSDNode>(Node)->getSrcValue(),
cast<AtomicSDNode>(Node)->getAlignment(),
cast<AtomicSDNode>(Node)->getOrdering(),
cast<AtomicSDNode>(Node)->getSynchScope());
return Swap.getValue(1);
}
// Other atomic stores have a simple pattern.
return Op;
}
static SDValue LowerADDC_ADDE_SUBC_SUBE(SDValue Op, SelectionDAG &DAG) {
EVT VT = Op.getNode()->getValueType(0);
@ -10035,6 +10056,7 @@ SDValue X86TargetLowering::LowerOperation(SDValue Op, SelectionDAG &DAG) const {
case ISD::ATOMIC_FENCE: return LowerATOMIC_FENCE(Op,DAG);
case ISD::ATOMIC_CMP_SWAP: return LowerCMP_SWAP(Op,DAG);
case ISD::ATOMIC_LOAD_SUB: return LowerLOAD_SUB(Op,DAG);
case ISD::ATOMIC_STORE: return LowerATOMIC_STORE(Op,DAG);
case ISD::BUILD_VECTOR: return LowerBUILD_VECTOR(Op, DAG);
case ISD::CONCAT_VECTORS: return LowerCONCAT_VECTORS(Op, DAG);
case ISD::VECTOR_SHUFFLE: return LowerVECTOR_SHUFFLE(Op, DAG);

14
lib/Target/X86/X86InstrCompiler.td
View File

@ -1691,3 +1691,17 @@ def : Pat<(and GR64:$src1, i64immSExt8:$src2),
(AND64ri8 GR64:$src1, i64immSExt8:$src2)>;
def : Pat<(and GR64:$src1, i64immSExt32:$src2),
(AND64ri32 GR64:$src1, i64immSExt32:$src2)>;
def : Pat<(atomic_load_8 addr:$src), (MOV8rm addr:$src)>;
def : Pat<(atomic_load_16 addr:$src), (MOV16rm addr:$src)>;
def : Pat<(atomic_load_32 addr:$src), (MOV32rm addr:$src)>;
def : Pat<(atomic_load_64 addr:$src), (MOV64rm addr:$src)>;
def : Pat<(atomic_store_8 addr:$ptr, GR8:$val),
(MOV8mr addr:$ptr, GR8:$val)>;
def : Pat<(atomic_store_16 addr:$ptr, GR16:$val),
(MOV16mr addr:$ptr, GR16:$val)>;
def : Pat<(atomic_store_32 addr:$ptr, GR32:$val),
(MOV32mr addr:$ptr, GR32:$val)>;
def : Pat<(atomic_store_64 addr:$ptr, GR64:$val),
(MOV64mr addr:$ptr, GR64:$val)>;