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annotate lib/Target/NVPTX/NVPTXMCExpr.cpp @ 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 //===-- NVPTXMCExpr.cpp - NVPTX specific MC expression classes ------------===//
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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 #include "NVPTXMCExpr.h"
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11 #include "llvm/ADT/StringExtras.h"
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12 #include "llvm/MC/MCAssembler.h"
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13 #include "llvm/MC/MCContext.h"
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14 using namespace llvm;
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16 #define DEBUG_TYPE "nvptx-mcexpr"
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17
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18 const NVPTXFloatMCExpr*
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19 NVPTXFloatMCExpr::Create(VariantKind Kind, APFloat Flt, MCContext &Ctx) {
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20 return new (Ctx) NVPTXFloatMCExpr(Kind, Flt);
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21 }
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23 void NVPTXFloatMCExpr::PrintImpl(raw_ostream &OS) const {
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24 bool Ignored;
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25 unsigned NumHex;
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26 APFloat APF = getAPFloat();
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27
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28 switch (Kind) {
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29 default: llvm_unreachable("Invalid kind!");
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30 case VK_NVPTX_SINGLE_PREC_FLOAT:
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31 OS << "0f";
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32 NumHex = 8;
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33 APF.convert(APFloat::IEEEsingle, APFloat::rmNearestTiesToEven, &Ignored);
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34 break;
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35 case VK_NVPTX_DOUBLE_PREC_FLOAT:
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36 OS << "0d";
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37 NumHex = 16;
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38 APF.convert(APFloat::IEEEdouble, APFloat::rmNearestTiesToEven, &Ignored);
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39 break;
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40 }
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41
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42 APInt API = APF.bitcastToAPInt();
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43 std::string HexStr(utohexstr(API.getZExtValue()));
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44 if (HexStr.length() < NumHex)
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45 OS << std::string(NumHex - HexStr.length(), '0');
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46 OS << utohexstr(API.getZExtValue());
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47 }