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 *
create(VariantKind Kind,const APFloat & Flt,MCContext & Ctx)19 NVPTXFloatMCExpr::create(VariantKind Kind, const APFloat &Flt, MCContext &Ctx) {
20 return new (Ctx) NVPTXFloatMCExpr(Kind, Flt);
21 }
22
printImpl(raw_ostream & OS,const MCAsmInfo * MAI) const23 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*
create(const MCSymbolRefExpr * SymExpr,MCContext & Ctx)50 NVPTXGenericMCSymbolRefExpr::create(const MCSymbolRefExpr *SymExpr,
51 MCContext &Ctx) {
52 return new (Ctx) NVPTXGenericMCSymbolRefExpr(SymExpr);
53 }
54
printImpl(raw_ostream & OS,const MCAsmInfo * MAI) const55 void NVPTXGenericMCSymbolRefExpr::printImpl(raw_ostream &OS,
56 const MCAsmInfo *MAI) const {
57 OS << "generic(";
58 SymExpr->print(OS, MAI);
59 OS << ")";
60 }
61