def br : SDNode<"ISD::BR" , SDTBr, [SDNPHasChain]>;
def trap : SDNode<"ISD::TRAP" , SDTNone,
[SDNPHasChain, SDNPSideEffect]>;
+def debugtrap : SDNode<"ISD::DEBUGTRAP" , SDTNone,
+ [SDNPHasChain, SDNPSideEffect]>;
def prefetch : SDNode<"ISD::PREFETCH" , SDTPrefetch,
[SDNPHasChain, SDNPMayLoad, SDNPMayStore,
SDNPMemOperand]>;
+def readcyclecounter : SDNode<"ISD::READCYCLECOUNTER", SDTIntLeaf,
+ [SDNPHasChain, SDNPSideEffect]>;
+
def membarrier : SDNode<"ISD::MEMBARRIER" , SDTMemBarrier,
[SDNPHasChain, SDNPSideEffect]>;
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]>;
+ [SDNPHasChain, SDNPMayLoad, SDNPMemOperand]>;
def atomic_store : SDNode<"ISD::ATOMIC_STORE", SDTAtomicStore,
- [SDNPHasChain, SDNPMayStore, SDNPMayLoad, SDNPMemOperand]>;
+ [SDNPHasChain, SDNPMayStore, SDNPMemOperand]>;
// Do not use ld, st directly. Use load, extload, sextload, zextload, store,
// and truncst (see below).
def vnot : PatFrag<(ops node:$in), (xor node:$in, immAllOnesV)>;
def ineg : PatFrag<(ops node:$in), (sub 0, node:$in)>;
+// null_frag - The null pattern operator is used in multiclass instantiations
+// which accept an SDPatternOperator for use in matching patterns for internal
+// definitions. When expanding a pattern, if the null fragment is referenced
+// in the expansion, the pattern is discarded and it is as-if '[]' had been
+// specified. This allows multiclasses to have the isel patterns be optional.
+def null_frag : SDPatternOperator;
+
// load fragments.
def unindexedload : PatFrag<(ops node:$ptr), (ld node:$ptr), [{
return cast<LoadSDNode>(N)->getAddressingMode() == ISD::UNINDEXED;