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annotate lib/Target/SystemZ/SystemZConstantPoolValue.h @ 95:afa8332a0e37 LLVM3.8

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LLVM 3.8
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Tue, 13 Oct 2015 17:48:58 +0900
parents 54457678186b
children 7d135dc70f03
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1 //===- SystemZConstantPoolValue.h - SystemZ constant-pool value -*- C++ -*-===//
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2 //
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3 // The LLVM Compiler Infrastructure
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4 //
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5 // This file is distributed under the University of Illinois Open Source
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6 // License. See LICENSE.TXT for details.
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7 //
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8 //===----------------------------------------------------------------------===//
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10 #ifndef LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZCONSTANTPOOLVALUE_H
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11 #define LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZCONSTANTPOOLVALUE_H
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13 #include "llvm/CodeGen/MachineConstantPool.h"
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14 #include "llvm/Support/ErrorHandling.h"
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16 namespace llvm {
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17
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18 class GlobalValue;
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20 namespace SystemZCP {
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21 enum SystemZCPModifier {
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22 TLSGD,
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23 TLSLDM,
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24 DTPOFF,
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25 NTPOFF
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26 };
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27 } // end namespace SystemZCP
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29 /// A SystemZ-specific constant pool value. At present, the only
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30 /// defined constant pool values are module IDs or offsets of
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31 /// thread-local variables (written x@TLSGD, x@TLSLDM, x@DTPOFF,
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32 /// or x@NTPOFF).
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33 class SystemZConstantPoolValue : public MachineConstantPoolValue {
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34 const GlobalValue *GV;
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35 SystemZCP::SystemZCPModifier Modifier;
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36
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37 protected:
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38 SystemZConstantPoolValue(const GlobalValue *GV,
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39 SystemZCP::SystemZCPModifier Modifier);
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41 public:
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42 static SystemZConstantPoolValue *
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43 Create(const GlobalValue *GV, SystemZCP::SystemZCPModifier Modifier);
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45 // Override MachineConstantPoolValue.
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46 unsigned getRelocationInfo() const override;
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47 int getExistingMachineCPValue(MachineConstantPool *CP,
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48 unsigned Alignment) override;
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49 void addSelectionDAGCSEId(FoldingSetNodeID &ID) override;
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50 void print(raw_ostream &O) const override;
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51
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52 // Access SystemZ-specific fields.
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53 const GlobalValue *getGlobalValue() const { return GV; }
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54 SystemZCP::SystemZCPModifier getModifier() const { return Modifier; }
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55 };
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57 } // end namespace llvm
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59 #endif