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Change ScheduleDAGInstrs::Defs and ::Uses to be variable-size vectors
instead of fixed size arrays, so that increasing FirstVirtualRegister to 16K won't cause a compile time performance regression. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109330 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -32,7 +32,8 @@ using namespace llvm;
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ScheduleDAGInstrs::ScheduleDAGInstrs(MachineFunction &mf,
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const MachineLoopInfo &mli,
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const MachineDominatorTree &mdt)
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: ScheduleDAG(mf), MLI(mli), MDT(mdt), LoopRegs(MLI, MDT) {
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: ScheduleDAG(mf), MLI(mli), MDT(mdt), Defs(TRI->getNumRegs()),
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Uses(TRI->getNumRegs()), LoopRegs(MLI, MDT) {
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MFI = mf.getFrameInfo();
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DbgValueVec.clear();
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}
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@ -106,8 +106,8 @@ namespace llvm {
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/// are as we iterate upward through the instructions. This is allocated
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/// here instead of inside BuildSchedGraph to avoid the need for it to be
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/// initialized and destructed for each block.
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std::vector<SUnit *> Defs[TargetRegisterInfo::FirstVirtualRegister];
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std::vector<SUnit *> Uses[TargetRegisterInfo::FirstVirtualRegister];
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std::vector<std::vector<SUnit *> > Defs;
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std::vector<std::vector<SUnit *> > Uses;
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/// DbgValueVec - Remember DBG_VALUEs that refer to a particular
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/// register.
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