1 //===-- NVPTXMCExpr.cpp - NVPTX specific MC expression classes ------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #include "NVPTXMCExpr.h" 11 #include "llvm/ADT/StringExtras.h" 12 #include "llvm/MC/MCAssembler.h" 13 #include "llvm/MC/MCContext.h" 14 using namespace llvm; 15 16 #define DEBUG_TYPE "nvptx-mcexpr" 17 18 const NVPTXFloatMCExpr * 19 NVPTXFloatMCExpr::create(VariantKind Kind, const APFloat &Flt, MCContext &Ctx) { 20 return new (Ctx) NVPTXFloatMCExpr(Kind, Flt); 21 } 22 23 void NVPTXFloatMCExpr::printImpl(raw_ostream &OS, const MCAsmInfo *MAI) const { 24 bool Ignored; 25 unsigned NumHex; 26 APFloat APF = getAPFloat(); 27 28 switch (Kind) { 29 default: llvm_unreachable("Invalid kind!"); 30 case VK_NVPTX_SINGLE_PREC_FLOAT: 31 OS << "0f"; 32 NumHex = 8; 33 APF.convert(APFloat::IEEEsingle, APFloat::rmNearestTiesToEven, &Ignored); 34 break; 35 case VK_NVPTX_DOUBLE_PREC_FLOAT: 36 OS << "0d"; 37 NumHex = 16; 38 APF.convert(APFloat::IEEEdouble, APFloat::rmNearestTiesToEven, &Ignored); 39 break; 40 } 41 42 APInt API = APF.bitcastToAPInt(); 43 std::string HexStr(utohexstr(API.getZExtValue())); 44 if (HexStr.length() < NumHex) 45 OS << std::string(NumHex - HexStr.length(), '0'); 46 OS << utohexstr(API.getZExtValue()); 47 } 48 49 const NVPTXGenericMCSymbolRefExpr* 50 NVPTXGenericMCSymbolRefExpr::create(const MCSymbolRefExpr *SymExpr, 51 MCContext &Ctx) { 52 return new (Ctx) NVPTXGenericMCSymbolRefExpr(SymExpr); 53 } 54 55 void NVPTXGenericMCSymbolRefExpr::printImpl(raw_ostream &OS, 56 const MCAsmInfo *MAI) const { 57 OS << "generic("; 58 SymExpr->print(OS, MAI); 59 OS << ")"; 60 } 61
