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annotate lib/Target/NVPTX/NVPTXSection.h @ 77:54457678186b LLVM3.6

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LLVM 3.6
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Mon, 08 Sep 2014 22:06:00 +0900
parents 95c75e76d11b
children afa8332a0e37
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1 //===- NVPTXSection.h - NVPTX-specific section representation -*- 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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9 //
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10 // This file declares the NVPTXSection class.
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11 //
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12 //===----------------------------------------------------------------------===//
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14 #ifndef LLVM_LIB_TARGET_NVPTX_NVPTXSECTION_H
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15 #define LLVM_LIB_TARGET_NVPTX_NVPTXSECTION_H
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16
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17 #include "llvm/IR/GlobalVariable.h"
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18 #include "llvm/MC/MCSection.h"
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19 #include <vector>
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20
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21 namespace llvm {
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22 /// NVPTXSection - Represents a section in PTX
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23 /// PTX does not have sections. We create this class in order to use
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24 /// the ASMPrint interface.
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25 ///
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26 class NVPTXSection : public MCSection {
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27 virtual void anchor();
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28 public:
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29 NVPTXSection(SectionVariant V, SectionKind K) : MCSection(V, K) {}
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30 virtual ~NVPTXSection() {}
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31
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32 /// Override this as NVPTX has its own way of printing switching
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33 /// to a section.
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34 void PrintSwitchToSection(const MCAsmInfo &MAI,
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35 raw_ostream &OS,
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36 const MCExpr *Subsection) const override {}
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37
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38 /// Base address of PTX sections is zero.
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39 bool isBaseAddressKnownZero() const override { return true; }
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40 bool UseCodeAlign() const override { return false; }
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41 bool isVirtualSection() const override { return false; }
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42 std::string getLabelBeginName() const override { return ""; }
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43 std::string getLabelEndName() const override { return ""; }
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44 };
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46 } // end namespace llvm
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47
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48 #endif