Move some simple-sched-specific instance vars to the simple scheduler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26690 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/ScheduleDAGSimple.cpp b/lib/CodeGen/SelectionDAG/ScheduleDAGSimple.cpp
index 5497ecf..42f6b06 100644
--- a/lib/CodeGen/SelectionDAG/ScheduleDAGSimple.cpp
+++ b/lib/CodeGen/SelectionDAG/ScheduleDAGSimple.cpp
@@ -188,24 +188,48 @@
///
class ScheduleDAGSimple : public ScheduleDAG {
private:
+ SchedHeuristics Heuristic; // Scheduling heuristic
+
ResourceTally<unsigned> Tally; // Resource usage tally
unsigned NSlots; // Total latency
static const unsigned NotFound = ~0U; // Search marker
+
+ unsigned NodeCount; // Number of nodes in DAG
+ std::map<SDNode *, NodeInfo *> Map; // Map nodes to info
+ bool HasGroups; // True if there are any groups
+ NodeInfo *Info; // Info for nodes being scheduled
+ NIVector Ordering; // Emit ordering of nodes
+ NodeGroup *HeadNG, *TailNG; // Keep track of allocated NodeGroups
public:
// Ctor.
ScheduleDAGSimple(SchedHeuristics hstc, SelectionDAG &dag,
MachineBasicBlock *bb, const TargetMachine &tm)
- : ScheduleDAG(hstc, dag, bb, tm), Tally(), NSlots(0) {
+ : ScheduleDAG(dag, bb, tm), Heuristic(hstc), Tally(), NSlots(0),
+ NodeCount(0), HasGroups(false), Info(NULL), HeadNG(NULL), TailNG(NULL) {
assert(&TII && "Target doesn't provide instr info?");
assert(&MRI && "Target doesn't provide register info?");
}
- virtual ~ScheduleDAGSimple() {};
+ virtual ~ScheduleDAGSimple() {
+ if (Info)
+ delete[] Info;
+
+ NodeGroup *NG = HeadNG;
+ while (NG) {
+ NodeGroup *NextSU = NG->Next;
+ delete NG;
+ NG = NextSU;
+ }
+ }
void Schedule();
+ /// getNI - Returns the node info for the specified node.
+ ///
+ NodeInfo *getNI(SDNode *Node) { return Map[Node]; }
+
private:
static bool isDefiner(NodeInfo *A, NodeInfo *B);
void IncludeNode(NodeInfo *NI);
@@ -826,6 +850,9 @@
/// Schedule - Order nodes according to selected style.
///
void ScheduleDAGSimple::Schedule() {
+ // Number the nodes
+ NodeCount = std::distance(DAG.allnodes_begin(), DAG.allnodes_end());
+
// Set up minimum info for scheduling
PrepareNodeInfo();
// Construct node groups for flagged nodes