forked from OSchip/llvm-project
47 lines
1.4 KiB
C++
47 lines
1.4 KiB
C++
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//===-- NVPTXMCExpr.cpp - NVPTX specific MC expression classes ------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#define DEBUG_TYPE "nvptx-mcexpr"
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#include "NVPTXMCExpr.h"
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#include "llvm/ADT/StringExtras.h"
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#include "llvm/MC/MCAssembler.h"
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#include "llvm/MC/MCContext.h"
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using namespace llvm;
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const NVPTXFloatMCExpr*
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NVPTXFloatMCExpr::Create(VariantKind Kind, APFloat Flt, MCContext &Ctx) {
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return new (Ctx) NVPTXFloatMCExpr(Kind, Flt);
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}
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void NVPTXFloatMCExpr::PrintImpl(raw_ostream &OS) const {
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bool Ignored;
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unsigned NumHex;
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APFloat APF = getAPFloat();
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switch (Kind) {
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default: llvm_unreachable("Invalid kind!");
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case VK_NVPTX_SINGLE_PREC_FLOAT:
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OS << "0f";
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NumHex = 8;
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APF.convert(APFloat::IEEEsingle, APFloat::rmNearestTiesToEven, &Ignored);
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break;
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case VK_NVPTX_DOUBLE_PREC_FLOAT:
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OS << "0d";
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NumHex = 16;
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APF.convert(APFloat::IEEEdouble, APFloat::rmNearestTiesToEven, &Ignored);
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break;
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}
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APInt API = APF.bitcastToAPInt();
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std::string HexStr(utohexstr(API.getZExtValue()));
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if (HexStr.length() < NumHex)
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OS << std::string(NumHex - HexStr.length(), '0');
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OS << utohexstr(API.getZExtValue());
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}
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