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[ScheduleDAG] Remove obsolete VReg2SUnitMap. NFC #96559

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Merged
merged 1 commit into from
Jun 25, 2024
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[ScheduleDAG] Remove obsolete VReg2SUnitMap. NFC #96559

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7 changes: 0 additions & 7 deletions llvm/include/llvm/CodeGen/ScheduleDAGInstrs.h
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Original file line number Diff line number Diff line change
Expand Up @@ -18,7 +18,6 @@
#include "llvm/ADT/PointerIntPair.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/SparseMultiSet.h"
#include "llvm/ADT/SparseSet.h"
#include "llvm/ADT/identity.h"
#include "llvm/CodeGen/LiveRegUnits.h"
#include "llvm/CodeGen/MachineBasicBlock.h"
Expand Down Expand Up @@ -91,12 +90,6 @@ namespace llvm {
using RegUnit2SUnitsMap =
SparseMultiSet<PhysRegSUOper, identity<unsigned>, uint16_t>;

/// Use SparseSet as a SparseMap by relying on the fact that it never
/// compares ValueT's, only unsigned keys. This allows the set to be cleared
/// between scheduling regions in constant time as long as ValueT does not
/// require a destructor.
using VReg2SUnitMap = SparseSet<VReg2SUnit, VirtReg2IndexFunctor>;

/// Track local uses of virtual registers. These uses are gathered by the DAG
/// builder and may be consulted by the scheduler to avoid iterating an entire
/// vreg use list.
Expand Down
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