/Users/buildslave/jenkins/sharedspace/clang-stage2-coverage-R@2/llvm/lib/Target/NVPTX/NVPTXMCExpr.cpp
Line | Count | Source (jump to first uncovered line) |
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 | 97 | NVPTXFloatMCExpr::create(VariantKind Kind, const APFloat &Flt, MCContext &Ctx) { |
20 | 97 | return new (Ctx) NVPTXFloatMCExpr(Kind, Flt); |
21 | 97 | } |
22 | | |
23 | 92 | void NVPTXFloatMCExpr::printImpl(raw_ostream &OS, const MCAsmInfo *MAI) const { |
24 | 92 | bool Ignored; |
25 | 92 | unsigned NumHex; |
26 | 92 | APFloat APF = getAPFloat(); |
27 | 92 | |
28 | 92 | switch (Kind) { |
29 | 0 | default: 0 llvm_unreachable0 ("Invalid kind!"); |
30 | 6 | case VK_NVPTX_HALF_PREC_FLOAT: |
31 | 6 | // ptxas does not have a way to specify half-precision floats. |
32 | 6 | // Instead we have to print and load fp16 constants as .b16 |
33 | 6 | OS << "0x"; |
34 | 6 | NumHex = 4; |
35 | 6 | APF.convert(APFloat::IEEEhalf(), APFloat::rmNearestTiesToEven, &Ignored); |
36 | 6 | break; |
37 | 70 | case VK_NVPTX_SINGLE_PREC_FLOAT: |
38 | 70 | OS << "0f"; |
39 | 70 | NumHex = 8; |
40 | 70 | APF.convert(APFloat::IEEEsingle(), APFloat::rmNearestTiesToEven, &Ignored); |
41 | 70 | break; |
42 | 16 | case VK_NVPTX_DOUBLE_PREC_FLOAT: |
43 | 16 | OS << "0d"; |
44 | 16 | NumHex = 16; |
45 | 16 | APF.convert(APFloat::IEEEdouble(), APFloat::rmNearestTiesToEven, &Ignored); |
46 | 16 | break; |
47 | 92 | } |
48 | 92 | |
49 | 92 | APInt API = APF.bitcastToAPInt(); |
50 | 92 | std::string HexStr(utohexstr(API.getZExtValue())); |
51 | 92 | if (HexStr.length() < NumHex) |
52 | 26 | OS << std::string(NumHex - HexStr.length(), '0'); |
53 | 92 | OS << utohexstr(API.getZExtValue()); |
54 | 92 | } |
55 | | |
56 | | const NVPTXGenericMCSymbolRefExpr* |
57 | | NVPTXGenericMCSymbolRefExpr::create(const MCSymbolRefExpr *SymExpr, |
58 | 1 | MCContext &Ctx) { |
59 | 1 | return new (Ctx) NVPTXGenericMCSymbolRefExpr(SymExpr); |
60 | 1 | } |
61 | | |
62 | | void NVPTXGenericMCSymbolRefExpr::printImpl(raw_ostream &OS, |
63 | 1 | const MCAsmInfo *MAI) const { |
64 | 1 | OS << "generic("; |
65 | 1 | SymExpr->print(OS, MAI); |
66 | 1 | OS << ")"; |
67 | 1 | } |