private:
SDNode *Node; // Representative node.
MachineInstr *Instr; // Alternatively, a MachineInstr.
+ MachineInstr *DbgInstr; // A dbg_value referencing this.
public:
SUnit *OrigNode; // If not this, the node from which
// this node was cloned.
/// SUnit - Construct an SUnit for pre-regalloc scheduling to represent
/// an SDNode and any nodes flagged to it.
SUnit(SDNode *node, unsigned nodenum)
- : Node(node), Instr(0), OrigNode(0), NodeNum(nodenum), NodeQueueId(0),
- Latency(0), NumPreds(0), NumSuccs(0), NumPredsLeft(0), NumSuccsLeft(0),
- isTwoAddress(false), isCommutable(false), hasPhysRegDefs(false),
- hasPhysRegClobbers(false),
+ : Node(node), Instr(0), DbgInstr(0), OrigNode(0), NodeNum(nodenum),
+ NodeQueueId(0), Latency(0), NumPreds(0), NumSuccs(0), NumPredsLeft(0),
+ NumSuccsLeft(0), isTwoAddress(false), isCommutable(false),
+ hasPhysRegDefs(false), hasPhysRegClobbers(false),
isPending(false), isAvailable(false), isScheduled(false),
isScheduleHigh(false), isCloned(false),
isDepthCurrent(false), isHeightCurrent(false), Depth(0), Height(0),
/// SUnit - Construct an SUnit for post-regalloc scheduling to represent
/// a MachineInstr.
SUnit(MachineInstr *instr, unsigned nodenum)
- : Node(0), Instr(instr), OrigNode(0), NodeNum(nodenum), NodeQueueId(0),
- Latency(0), NumPreds(0), NumSuccs(0), NumPredsLeft(0), NumSuccsLeft(0),
- isTwoAddress(false), isCommutable(false), hasPhysRegDefs(false),
- hasPhysRegClobbers(false),
+ : Node(0), Instr(instr), DbgInstr(0), OrigNode(0), NodeNum(nodenum),
+ NodeQueueId(0), Latency(0), NumPreds(0), NumSuccs(0), NumPredsLeft(0),
+ NumSuccsLeft(0), isTwoAddress(false), isCommutable(false),
+ hasPhysRegDefs(false), hasPhysRegClobbers(false),
isPending(false), isAvailable(false), isScheduled(false),
isScheduleHigh(false), isCloned(false),
isDepthCurrent(false), isHeightCurrent(false), Depth(0), Height(0),
/// SUnit - Construct a placeholder SUnit.
SUnit()
- : Node(0), Instr(0), OrigNode(0), NodeNum(~0u), NodeQueueId(0),
- Latency(0), NumPreds(0), NumSuccs(0), NumPredsLeft(0), NumSuccsLeft(0),
- isTwoAddress(false), isCommutable(false), hasPhysRegDefs(false),
- hasPhysRegClobbers(false),
+ : Node(0), Instr(0), DbgInstr(0), OrigNode(0), NodeNum(~0u),
+ NodeQueueId(0), Latency(0), NumPreds(0), NumSuccs(0), NumPredsLeft(0),
+ NumSuccsLeft(0), isTwoAddress(false), isCommutable(false),
+ hasPhysRegDefs(false), hasPhysRegClobbers(false),
isPending(false), isAvailable(false), isScheduled(false),
isScheduleHigh(false), isCloned(false),
isDepthCurrent(false), isHeightCurrent(false), Depth(0), Height(0),
return Instr;
}
+ /// setDbgInstr - Assign the debug instruction for the SUnit.
+ /// This may be used during post-regalloc scheduling.
+ void setDbgInstr(MachineInstr *MI) {
+ assert(!Node && "Setting debug MachineInstr of SUnit with SDNode!");
+ DbgInstr = MI;
+ }
+
+ /// getDbgInstr - Return the debug MachineInstr for this SUnit.
+ /// This may be used during post-regalloc scheduling.
+ MachineInstr *getDbgInstr() const {
+ assert(!Node && "Reading debug MachineInstr of SUnit with SDNode!");
+ return DbgInstr;
+ }
+
/// addPred - This adds the specified edge as a pred of the current node if
/// not already. It also adds the current node as a successor of the
/// specified node.
/// getDepth - Return the depth of this node, which is the length of the
/// maximum path up to any node with has no predecessors.
unsigned getDepth() const {
- if (!isDepthCurrent) const_cast<SUnit *>(this)->ComputeDepth();
+ if (!isDepthCurrent)
+ const_cast<SUnit *>(this)->ComputeDepth();
return Depth;
}
/// getHeight - Return the height of this node, which is the length of the
/// maximum path down to any node with has no successors.
unsigned getHeight() const {
- if (!isHeightCurrent) const_cast<SUnit *>(this)->ComputeHeight();
+ if (!isHeightCurrent)
+ const_cast<SUnit *>(this)->ComputeHeight();
return Height;
}
- /// setDepthToAtLeast - If NewDepth is greater than this node's depth
- /// value, set it to be the new depth value. This also recursively
- /// marks successor nodes dirty.
+ /// setDepthToAtLeast - If NewDepth is greater than this node's
+ /// depth value, set it to be the new depth value. This also
+ /// recursively marks successor nodes dirty.
void setDepthToAtLeast(unsigned NewDepth);
- /// setDepthToAtLeast - If NewDepth is greater than this node's depth
- /// value, set it to be the new height value. This also recursively
- /// marks predecessor nodes dirty.
+ /// setDepthToAtLeast - If NewDepth is greater than this node's
+ /// depth value, set it to be the new height value. This also
+ /// recursively marks predecessor nodes dirty.
void setHeightToAtLeast(unsigned NewHeight);
/// setDepthDirty - Set a flag in this node to indicate that its
/// operand use/def information
///
virtual void ComputeOperandLatency(SUnit *, SUnit *,
- SDep&) const { };
+ SDep&) const { }
/// Schedule - Order nodes according to selected style, filling
/// in the Sequence member.