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CriticalAntiDepBreaker: Replace a SmallSet of regs with a much denser BitVector.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152999 91177308-0d34-0410-b5e6-96231b3b80d8
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@@ -24,7 +24,6 @@
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#include "llvm/CodeGen/MachineRegisterInfo.h"
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#include "llvm/CodeGen/ScheduleDAG.h"
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#include "llvm/ADT/BitVector.h"
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#include "llvm/ADT/SmallSet.h"
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#include <map>
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namespace llvm {
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@@ -66,7 +65,7 @@ class TargetRegisterInfo;
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/// KeepRegs - A set of registers which are live and cannot be changed to
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/// break anti-dependencies.
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SmallSet<unsigned, 4> KeepRegs;
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BitVector KeepRegs;
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public:
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CriticalAntiDepBreaker(MachineFunction& MFi, const RegisterClassInfo&);
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