bool isSafeToReMat(const TargetInstrInfo *TII, AliasAnalysis *AA,
unsigned DstReg) const;
- /// hasVolatileMemoryRef - Return true if this instruction may have a
- /// volatile memory reference, or if the information describing the
- /// memory reference is not available. Return false if it is known to
- /// have no volatile memory references.
- bool hasVolatileMemoryRef() const;
+ /// hasOrderedMemoryRef - Return true if this instruction may have an ordered
+ /// or volatile memory reference, or if the information describing the memory
+ /// reference is not available. Return false if it is known to have no
+ /// ordered or volatile memory references.
+ bool hasOrderedMemoryRef() const;
/// isInvariantLoad - Return true if this instruction is loading from a
/// location whose value is invariant across the function. For example,
// volatiles, but it is required for atomic loads. It is now allowed to move
// a load across an atomic load with Ordering > Monotonic.
if (mayStore() || isCall() ||
- (mayLoad() && hasVolatileMemoryRef())) {
+ (mayLoad() && hasOrderedMemoryRef())) {
SawStore = true;
return false;
}
return true;
}
-/// hasVolatileMemoryRef - Return true if this instruction may have a
-/// volatile memory reference, or if the information describing the
-/// memory reference is not available. Return false if it is known to
-/// have no volatile memory references.
-bool MachineInstr::hasVolatileMemoryRef() const {
+/// hasOrderedMemoryRef - Return true if this instruction may have an ordered
+/// or volatile memory reference, or if the information describing the memory
+/// reference is not available. Return false if it is known to have no ordered
+/// memory references.
+bool MachineInstr::hasOrderedMemoryRef() const {
// An instruction known never to access memory won't have a volatile access.
if (!mayStore() &&
!mayLoad() &&
if (memoperands_empty())
return true;
- // Check the memory reference information for volatile references.
+ // Check the memory reference information for ordered references.
for (mmo_iterator I = memoperands_begin(), E = memoperands_end(); I != E; ++I)
- if ((*I)->isVolatile())
+ if (!(*I)->isUnordered())
return true;
return false;
/// (like a call or something with unmodeled side effects).
static inline bool isGlobalMemoryObject(AliasAnalysis *AA, MachineInstr *MI) {
if (MI->isCall() || MI->hasUnmodeledSideEffects() ||
- (MI->hasVolatileMemoryRef() &&
+ (MI->hasOrderedMemoryRef() &&
(!MI->mayLoad() || !MI->isInvariantLoad(AA))))
return true;
return false;
// 1. Two loads unless they are volatile.
// 2. Two stores in V4 unless they are volatile.
else if ((DepType == SDep::Order) &&
- !I->hasVolatileMemoryRef() &&
- !J->hasVolatileMemoryRef()) {
+ !I->hasOrderedMemoryRef() &&
+ !J->hasOrderedMemoryRef()) {
if (QRI->Subtarget.hasV4TOps() &&
// hexagonv4 allows dual store.
MCIDI.mayStore() && MCIDJ.mayStore()) {