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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26631 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2006-03-09 06:37:29 +00:00
parent e32178dd32
commit e87c5c8088
1 changed files with 13 additions and 8 deletions
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21
lib/CodeGen/SelectionDAG/ScheduleDAGList.cpp
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@ -119,13 +119,14 @@ void SUnit::dump(const SelectionDAG *G, bool All) const {
} }
//===----------------------------------------------------------------------===// //===----------------------------------------------------------------------===//
// SchedulingPriorityQueue - This interface is used to plug different /// SchedulingPriorityQueue - This interface is used to plug different
// priorities computation algorithms into the list scheduler. It implements the /// priorities computation algorithms into the list scheduler. It implements the
// interface of a standard priority queue, where nodes are inserted in arbitrary /// interface of a standard priority queue, where nodes are inserted in
// order and returned in priority order. The computation of the priority and /// arbitrary order and returned in priority order. The computation of the
// the representation of the queue are totally up to the implementation to /// priority and the representation of the queue are totally up to the
// decide. /// implementation to decide.
// ///
namespace {
class SchedulingPriorityQueue { class SchedulingPriorityQueue {
public: public:
virtual ~SchedulingPriorityQueue() {} virtual ~SchedulingPriorityQueue() {}
@ -137,11 +138,15 @@ public:
virtual void push(SUnit *U) = 0; virtual void push(SUnit *U) = 0;
virtual SUnit *pop() = 0; virtual SUnit *pop() = 0;
}; };
}
namespace { namespace {
/// ScheduleDAGList - List scheduler. //===----------------------------------------------------------------------===//
/// ScheduleDAGList - The actual list scheduler implementation. This supports
/// both top-down and bottom-up scheduling.
///
class ScheduleDAGList : public ScheduleDAG { class ScheduleDAGList : public ScheduleDAG {
private: private:
// SDNode to SUnit mapping (many to one). // SDNode to SUnit mapping (many to one).