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annotate lib/Target/SystemZ/SystemZMachineFunctionInfo.h @ 147:c2174574ed3a

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LLVM 10
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Wed, 14 Aug 2019 16:55:33 +0900
parents 1172e4bd9c6f
children
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1 //=== SystemZMachineFunctionInfo.h - SystemZ machine function info -*- C++ -*-//
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2 //
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3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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4 // See https://llvm.org/LICENSE.txt for license information.
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5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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6 //
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7 //===----------------------------------------------------------------------===//
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8
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9 #ifndef LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZMACHINEFUNCTIONINFO_H
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10 #define LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZMACHINEFUNCTIONINFO_H
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12 #include "llvm/CodeGen/MachineFunction.h"
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13
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14 namespace llvm {
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15
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16 class SystemZMachineFunctionInfo : public MachineFunctionInfo {
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17 virtual void anchor();
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18 unsigned LowSavedGPR;
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19 unsigned HighSavedGPR;
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20 unsigned VarArgsFirstGPR;
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21 unsigned VarArgsFirstFPR;
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22 unsigned VarArgsFrameIndex;
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23 unsigned RegSaveFrameIndex;
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24 int FramePointerSaveIndex;
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25 bool ManipulatesSP;
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26 unsigned NumLocalDynamics;
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27
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28 public:
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29 explicit SystemZMachineFunctionInfo(MachineFunction &MF)
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30 : LowSavedGPR(0), HighSavedGPR(0), VarArgsFirstGPR(0), VarArgsFirstFPR(0),
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31 VarArgsFrameIndex(0), RegSaveFrameIndex(0), FramePointerSaveIndex(0),
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32 ManipulatesSP(false), NumLocalDynamics(0) {}
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33
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34 // Get and set the first call-saved GPR that should be saved and restored
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35 // by this function. This is 0 if no GPRs need to be saved or restored.
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36 unsigned getLowSavedGPR() const { return LowSavedGPR; }
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37 void setLowSavedGPR(unsigned Reg) { LowSavedGPR = Reg; }
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38
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39 // Get and set the last call-saved GPR that should be saved and restored
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40 // by this function.
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41 unsigned getHighSavedGPR() const { return HighSavedGPR; }
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42 void setHighSavedGPR(unsigned Reg) { HighSavedGPR = Reg; }
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43
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44 // Get and set the number of fixed (as opposed to variable) arguments
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45 // that are passed in GPRs to this function.
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46 unsigned getVarArgsFirstGPR() const { return VarArgsFirstGPR; }
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47 void setVarArgsFirstGPR(unsigned GPR) { VarArgsFirstGPR = GPR; }
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48
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49 // Likewise FPRs.
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50 unsigned getVarArgsFirstFPR() const { return VarArgsFirstFPR; }
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51 void setVarArgsFirstFPR(unsigned FPR) { VarArgsFirstFPR = FPR; }
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52
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53 // Get and set the frame index of the first stack vararg.
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54 unsigned getVarArgsFrameIndex() const { return VarArgsFrameIndex; }
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55 void setVarArgsFrameIndex(unsigned FI) { VarArgsFrameIndex = FI; }
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56
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57 // Get and set the frame index of the register save area
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58 // (i.e. the incoming stack pointer).
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59 unsigned getRegSaveFrameIndex() const { return RegSaveFrameIndex; }
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60 void setRegSaveFrameIndex(unsigned FI) { RegSaveFrameIndex = FI; }
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61
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62 // Get and set the frame index of where the old frame pointer is stored.
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63 int getFramePointerSaveIndex() const { return FramePointerSaveIndex; }
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64 void setFramePointerSaveIndex(int Idx) { FramePointerSaveIndex = Idx; }
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65
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66 // Get and set whether the function directly manipulates the stack pointer,
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67 // e.g. through STACKSAVE or STACKRESTORE.
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68 bool getManipulatesSP() const { return ManipulatesSP; }
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69 void setManipulatesSP(bool MSP) { ManipulatesSP = MSP; }
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70
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71 // Count number of local-dynamic TLS symbols used.
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72 unsigned getNumLocalDynamicTLSAccesses() const { return NumLocalDynamics; }
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73 void incNumLocalDynamicTLSAccesses() { ++NumLocalDynamics; }
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74 };
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75
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76 } // end namespace llvm
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78 #endif