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Some code cleanups from Chris
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11724 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -18,12 +18,10 @@
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#define LLVM_CODEGEN_PHYSREGTRACKER_H
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#include "llvm/CodeGen/MachineFunction.h"
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#include <vector>
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namespace llvm {
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class PhysRegTracker {
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private:
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const MRegisterInfo* mri_;
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std::vector<unsigned> regUse_;
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@ -50,10 +48,8 @@ namespace llvm {
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assert(MRegisterInfo::isPhysicalRegister(physReg) &&
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"should be physical register!");
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++regUse_[physReg];
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for (const unsigned* as = mri_->getAliasSet(physReg); *as; ++as) {
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physReg = *as;
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++regUse_[physReg];
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}
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for (const unsigned* as = mri_->getAliasSet(physReg); *as; ++as)
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++regUse_[*as];
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}
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void delRegUse(unsigned physReg) {
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@ -62,9 +58,8 @@ namespace llvm {
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assert(regUse_[physReg] != 0);
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--regUse_[physReg];
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for (const unsigned* as = mri_->getAliasSet(physReg); *as; ++as) {
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physReg = *as;
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assert(regUse_[physReg] != 0);
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--regUse_[physReg];
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assert(regUse_[*as] != 0);
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--regUse_[*as];
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}
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}
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