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annotate lib/Target/NVPTX/NVPTXSubtarget.cpp @ 83:60c9769439b8 LLVM3.7

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LLVM 3.7
author Tatsuki IHA <e125716@ie.u-ryukyu.ac.jp>
date Wed, 18 Feb 2015 14:55:36 +0900
parents 54457678186b
children afa8332a0e37
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1 //===- NVPTXSubtarget.cpp - NVPTX Subtarget Information -------------------===//
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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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9 //
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10 // This file implements the NVPTX specific subclass of TargetSubtarget.
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11 //
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12 //===----------------------------------------------------------------------===//
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14 #include "NVPTXSubtarget.h"
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16 using namespace llvm;
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17
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18 #define DEBUG_TYPE "nvptx-subtarget"
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19
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20 #define GET_SUBTARGETINFO_ENUM
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21 #define GET_SUBTARGETINFO_TARGET_DESC
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22 #define GET_SUBTARGETINFO_CTOR
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23 #include "NVPTXGenSubtargetInfo.inc"
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25 // Pin the vtable to this file.
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26 void NVPTXSubtarget::anchor() {}
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27
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28 NVPTXSubtarget &NVPTXSubtarget::initializeSubtargetDependencies(StringRef CPU,
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29 StringRef FS) {
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30 // Provide the default CPU if we don't have one.
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31 if (CPU.empty() && FS.size())
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32 llvm_unreachable("we are not using FeatureStr");
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33 TargetName = CPU.empty() ? "sm_20" : CPU;
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34
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35 ParseSubtargetFeatures(TargetName, FS);
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36
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37 // Set default to PTX 3.2 (CUDA 5.5)
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38 if (PTXVersion == 0) {
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39 PTXVersion = 32;
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40 }
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42 return *this;
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43 }
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45 NVPTXSubtarget::NVPTXSubtarget(const std::string &TT, const std::string &CPU,
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46 const std::string &FS, const TargetMachine &TM,
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47 bool is64Bit)
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48 : NVPTXGenSubtargetInfo(TT, CPU, FS), Is64Bit(is64Bit), PTXVersion(0),
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49 SmVersion(20), InstrInfo(initializeSubtargetDependencies(CPU, FS)),
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50 TLInfo((const NVPTXTargetMachine &)TM, *this), TSInfo(TM.getDataLayout()),
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51 FrameLowering(*this) {
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53 Triple T(TT);
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55 if (T.getOS() == Triple::NVCL)
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56 drvInterface = NVPTX::NVCL;
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57 else
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58 drvInterface = NVPTX::CUDA;
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59 }