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RegAllocLocal can count copies too
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103830 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -37,6 +37,7 @@ using namespace llvm;
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STATISTIC(NumStores, "Number of stores added");
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STATISTIC(NumLoads , "Number of loads added");
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STATISTIC(NumCopies, "Number of copies coalesced");
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static RegisterRegAlloc
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localRegAlloc("local", "local register allocator",
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@ -1156,8 +1157,10 @@ void RALocal::AllocateBasicBlock(MachineBasicBlock &MBB) {
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if (TII->isMoveInstr(*MI, SrcCopyReg, DstCopyReg,
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SrcCopySubReg, DstCopySubReg) &&
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SrcCopyReg == DstCopyReg && SrcCopySubReg == DstCopySubReg &&
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DeadDefs.empty())
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DeadDefs.empty()) {
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++NumCopies;
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MBB.erase(MI);
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}
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}
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MachineBasicBlock::iterator MI = MBB.getFirstTerminator();
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