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Switch to using smallvector for liveintervals. This speeds up live interval
analysis 11% on kc++. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29812 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -21,6 +21,7 @@
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#ifndef LLVM_CODEGEN_LIVEINTERVAL_H
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#define LLVM_CODEGEN_LIVEINTERVAL_H
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#include "llvm/ADT/SmallVector.h"
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#include <iosfwd>
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#include <vector>
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#include <cassert>
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@ -72,7 +73,7 @@ namespace llvm {
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/// register or value. This class also contains a bit of register allocator
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/// state.
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struct LiveInterval {
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typedef std::vector<LiveRange> Ranges;
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typedef SmallVector<LiveRange,4> Ranges;
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unsigned reg; // the register of this interval
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float weight; // weight of this interval
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Ranges ranges; // the ranges in which this register is live
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