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annotate lib/MC/SubtargetFeature.cpp @ 121:803732b1fca8

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LLVM 5.0
author kono
date Fri, 27 Oct 2017 17:07:41 +0900
parents 1172e4bd9c6f
children c2174574ed3a
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1 //===- SubtargetFeature.cpp - CPU characteristics Implementation ----------===//
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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 /// \file Implements the SubtargetFeature interface.
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11 //
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12 //===----------------------------------------------------------------------===//
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13
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14 #include "llvm/MC/SubtargetFeature.h"
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15 #include "llvm/ADT/ArrayRef.h"
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16 #include "llvm/ADT/SmallVector.h"
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17 #include "llvm/ADT/StringExtras.h"
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18 #include "llvm/ADT/StringRef.h"
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19 #include "llvm/ADT/Triple.h"
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20 #include "llvm/Support/Compiler.h"
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21 #include "llvm/Support/Debug.h"
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22 #include "llvm/Support/Format.h"
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23 #include "llvm/Support/raw_ostream.h"
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24 #include <algorithm>
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25 #include <cassert>
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26 #include <cstddef>
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27 #include <cstring>
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28 #include <iterator>
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29 #include <string>
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30 #include <vector>
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31
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32 using namespace llvm;
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33
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34 /// Determine if a feature has a flag; '+' or '-'
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35 static inline bool hasFlag(StringRef Feature) {
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36 assert(!Feature.empty() && "Empty string");
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37 // Get first character
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38 char Ch = Feature[0];
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39 // Check if first character is '+' or '-' flag
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40 return Ch == '+' || Ch =='-';
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41 }
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42
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43 /// Return string stripped of flag.
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44 static inline std::string StripFlag(StringRef Feature) {
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45 return hasFlag(Feature) ? Feature.substr(1) : Feature;
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46 }
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47
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48 /// Return true if enable flag; '+'.
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49 static inline bool isEnabled(StringRef Feature) {
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50 assert(!Feature.empty() && "Empty string");
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51 // Get first character
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52 char Ch = Feature[0];
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53 // Check if first character is '+' for enabled
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54 return Ch == '+';
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55 }
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56
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57 /// Splits a string of comma separated items in to a vector of strings.
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58 static void Split(std::vector<std::string> &V, StringRef S) {
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59 SmallVector<StringRef, 3> Tmp;
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60 S.split(Tmp, ',', -1, false /* KeepEmpty */);
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61 V.assign(Tmp.begin(), Tmp.end());
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62 }
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64 void SubtargetFeatures::AddFeature(StringRef String, bool Enable) {
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65 // Don't add empty features.
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66 if (!String.empty())
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67 // Convert to lowercase, prepend flag if we don't already have a flag.
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68 Features.push_back(hasFlag(String) ? String.lower()
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69 : (Enable ? "+" : "-") + String.lower());
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70 }
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71
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72 /// Find KV in array using binary search.
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73 static const SubtargetFeatureKV *Find(StringRef S,
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74 ArrayRef<SubtargetFeatureKV> A) {
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75 // Binary search the array
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76 auto F = std::lower_bound(A.begin(), A.end(), S);
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77 // If not found then return NULL
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78 if (F == A.end() || StringRef(F->Key) != S) return nullptr;
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79 // Return the found array item
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80 return F;
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81 }
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82
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83 /// Return the length of the longest entry in the table.
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84 static size_t getLongestEntryLength(ArrayRef<SubtargetFeatureKV> Table) {
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85 size_t MaxLen = 0;
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86 for (auto &I : Table)
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87 MaxLen = std::max(MaxLen, std::strlen(I.Key));
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88 return MaxLen;
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89 }
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91 /// Display help for feature choices.
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92 static void Help(ArrayRef<SubtargetFeatureKV> CPUTable,
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93 ArrayRef<SubtargetFeatureKV> FeatTable) {
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94 // Determine the length of the longest CPU and Feature entries.
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95 unsigned MaxCPULen = getLongestEntryLength(CPUTable);
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96 unsigned MaxFeatLen = getLongestEntryLength(FeatTable);
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97
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98 // Print the CPU table.
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99 errs() << "Available CPUs for this target:\n\n";
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100 for (auto &CPU : CPUTable)
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101 errs() << format(" %-*s - %s.\n", MaxCPULen, CPU.Key, CPU.Desc);
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102 errs() << '\n';
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103
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104 // Print the Feature table.
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105 errs() << "Available features for this target:\n\n";
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106 for (auto &Feature : FeatTable)
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107 errs() << format(" %-*s - %s.\n", MaxFeatLen, Feature.Key, Feature.Desc);
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108 errs() << '\n';
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109
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110 errs() << "Use +feature to enable a feature, or -feature to disable it.\n"
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111 "For example, llc -mcpu=mycpu -mattr=+feature1,-feature2\n";
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112 }
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113
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114 SubtargetFeatures::SubtargetFeatures(StringRef Initial) {
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115 // Break up string into separate features
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116 Split(Features, Initial);
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117 }
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118
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119 std::string SubtargetFeatures::getString() const {
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120 return join(Features.begin(), Features.end(), ",");
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121 }
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122
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123 /// For each feature that is (transitively) implied by this feature, set it.
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124 static
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125 void SetImpliedBits(FeatureBitset &Bits, const SubtargetFeatureKV &FeatureEntry,
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126 ArrayRef<SubtargetFeatureKV> FeatureTable) {
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127 for (const SubtargetFeatureKV &FE : FeatureTable) {
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128 if (FeatureEntry.Value == FE.Value) continue;
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129
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130 if ((FeatureEntry.Implies & FE.Value).any()) {
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131 Bits |= FE.Value;
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132 SetImpliedBits(Bits, FE, FeatureTable);
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133 }
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134 }
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135 }
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136
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kono
parents: 120
diff changeset
137 /// For each feature that (transitively) implies this feature, clear it.
0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
138 static
121
803732b1fca8 LLVM 5.0
kono
parents: 120
diff changeset
139 void ClearImpliedBits(FeatureBitset &Bits,
803732b1fca8 LLVM 5.0
kono
parents: 120
diff changeset
140 const SubtargetFeatureKV &FeatureEntry,
77
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
141 ArrayRef<SubtargetFeatureKV> FeatureTable) {
121
803732b1fca8 LLVM 5.0
kono
parents: 120
diff changeset
142 for (const SubtargetFeatureKV &FE : FeatureTable) {
803732b1fca8 LLVM 5.0
kono
parents: 120
diff changeset
143 if (FeatureEntry.Value == FE.Value) continue;
0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
144
121
803732b1fca8 LLVM 5.0
kono
parents: 120
diff changeset
145 if ((FE.Implies & FeatureEntry.Value).any()) {
0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
146 Bits &= ~FE.Value;
121
803732b1fca8 LLVM 5.0
kono
parents: 120
diff changeset
147 ClearImpliedBits(Bits, FE, FeatureTable);
0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
148 }
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
149 }
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
150 }
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
151
100
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents: 95
diff changeset
152 void
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents: 95
diff changeset
153 SubtargetFeatures::ToggleFeature(FeatureBitset &Bits, StringRef Feature,
77
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
154 ArrayRef<SubtargetFeatureKV> FeatureTable) {
0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
155 // Find feature in table.
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
156 const SubtargetFeatureKV *FeatureEntry =
77
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
157 Find(StripFlag(Feature), FeatureTable);
0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
158 // If there is a match
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
159 if (FeatureEntry) {
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
160 if ((Bits & FeatureEntry->Value) == FeatureEntry->Value) {
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
161 Bits &= ~FeatureEntry->Value;
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
162 // For each feature that implies this, clear it.
121
803732b1fca8 LLVM 5.0
kono
parents: 120
diff changeset
163 ClearImpliedBits(Bits, *FeatureEntry, FeatureTable);
0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
164 } else {
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
165 Bits |= FeatureEntry->Value;
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
166
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
167 // For each feature that this implies, set it.
121
803732b1fca8 LLVM 5.0
kono
parents: 120
diff changeset
168 SetImpliedBits(Bits, *FeatureEntry, FeatureTable);
0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
169 }
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
170 } else {
121
803732b1fca8 LLVM 5.0
kono
parents: 120
diff changeset
171 errs() << "'" << Feature << "' is not a recognized feature for this target"
0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
172 << " (ignoring feature)\n";
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
173 }
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
174 }
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
175
100
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents: 95
diff changeset
176 void SubtargetFeatures::ApplyFeatureFlag(FeatureBitset &Bits, StringRef Feature,
95
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 77
diff changeset
177 ArrayRef<SubtargetFeatureKV> FeatureTable) {
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 77
diff changeset
178 assert(hasFlag(Feature));
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 77
diff changeset
179
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 77
diff changeset
180 // Find feature in table.
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 77
diff changeset
181 const SubtargetFeatureKV *FeatureEntry =
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 77
diff changeset
182 Find(StripFlag(Feature), FeatureTable);
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 77
diff changeset
183 // If there is a match
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 77
diff changeset
184 if (FeatureEntry) {
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 77
diff changeset
185 // Enable/disable feature in bits
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 77
diff changeset
186 if (isEnabled(Feature)) {
100
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents: 95
diff changeset
187 Bits |= FeatureEntry->Value;
95
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 77
diff changeset
188
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 77
diff changeset
189 // For each feature that this implies, set it.
121
803732b1fca8 LLVM 5.0
kono
parents: 120
diff changeset
190 SetImpliedBits(Bits, *FeatureEntry, FeatureTable);
95
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 77
diff changeset
191 } else {
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 77
diff changeset
192 Bits &= ~FeatureEntry->Value;
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 77
diff changeset
193
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 77
diff changeset
194 // For each feature that implies this, clear it.
121
803732b1fca8 LLVM 5.0
kono
parents: 120
diff changeset
195 ClearImpliedBits(Bits, *FeatureEntry, FeatureTable);
95
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 77
diff changeset
196 }
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 77
diff changeset
197 } else {
121
803732b1fca8 LLVM 5.0
kono
parents: 120
diff changeset
198 errs() << "'" << Feature << "' is not a recognized feature for this target"
95
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 77
diff changeset
199 << " (ignoring feature)\n";
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 77
diff changeset
200 }
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 77
diff changeset
201 }
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 77
diff changeset
202
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 77
diff changeset
203 FeatureBitset
77
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
204 SubtargetFeatures::getFeatureBits(StringRef CPU,
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
205 ArrayRef<SubtargetFeatureKV> CPUTable,
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
206 ArrayRef<SubtargetFeatureKV> FeatureTable) {
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
207 if (CPUTable.empty() || FeatureTable.empty())
95
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 77
diff changeset
208 return FeatureBitset();
0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
209
100
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents: 95
diff changeset
210 assert(std::is_sorted(std::begin(CPUTable), std::end(CPUTable)) &&
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents: 95
diff changeset
211 "CPU table is not sorted");
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents: 95
diff changeset
212 assert(std::is_sorted(std::begin(FeatureTable), std::end(FeatureTable)) &&
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents: 95
diff changeset
213 "CPU features table is not sorted");
95
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 77
diff changeset
214 // Resulting bits
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 77
diff changeset
215 FeatureBitset Bits;
0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
216
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
217 // Check if help is needed
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
218 if (CPU == "help")
77
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
219 Help(CPUTable, FeatureTable);
0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
220
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
221 // Find CPU entry if CPU name is specified.
77
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
222 else if (!CPU.empty()) {
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
223 const SubtargetFeatureKV *CPUEntry = Find(CPU, CPUTable);
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
224
0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
225 // If there is a match
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
226 if (CPUEntry) {
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
227 // Set base feature bits
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
228 Bits = CPUEntry->Value;
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
229
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
230 // Set the feature implied by this CPU feature, if any.
77
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
231 for (auto &FE : FeatureTable) {
95
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 77
diff changeset
232 if ((CPUEntry->Value & FE.Value).any())
121
803732b1fca8 LLVM 5.0
kono
parents: 120
diff changeset
233 SetImpliedBits(Bits, FE, FeatureTable);
0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
234 }
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
235 } else {
121
803732b1fca8 LLVM 5.0
kono
parents: 120
diff changeset
236 errs() << "'" << CPU << "' is not a recognized processor for this target"
0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
237 << " (ignoring processor)\n";
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
238 }
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
239 }
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
240
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
241 // Iterate through each feature
121
803732b1fca8 LLVM 5.0
kono
parents: 120
diff changeset
242 for (const std::string &Feature : Features) {
0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
243 // Check for help
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
244 if (Feature == "+help")
77
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
245 Help(CPUTable, FeatureTable);
0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
246
100
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents: 95
diff changeset
247 ApplyFeatureFlag(Bits, Feature, FeatureTable);
0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
248 }
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
249
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
250 return Bits;
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
251 }
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
252
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
253 void SubtargetFeatures::print(raw_ostream &OS) const {
77
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
254 for (auto &F : Features)
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
255 OS << F << " ";
0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
256 OS << "\n";
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
257 }
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
258
121
803732b1fca8 LLVM 5.0
kono
parents: 120
diff changeset
259 #if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
120
1172e4bd9c6f update 4.0.0
mir3636
parents: 100
diff changeset
260 LLVM_DUMP_METHOD void SubtargetFeatures::dump() const {
0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
261 print(dbgs());
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
262 }
121
803732b1fca8 LLVM 5.0
kono
parents: 120
diff changeset
263 #endif
0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
264
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
265 void SubtargetFeatures::getDefaultSubtargetFeatures(const Triple& Triple) {
121
803732b1fca8 LLVM 5.0
kono
parents: 120
diff changeset
266 // FIXME: This is an inelegant way of specifying the features of a
803732b1fca8 LLVM 5.0
kono
parents: 120
diff changeset
267 // subtarget. It would be better if we could encode this information
803732b1fca8 LLVM 5.0
kono
parents: 120
diff changeset
268 // into the IR. See <rdar://5972456>.
0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
269 if (Triple.getVendor() == Triple::Apple) {
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
270 if (Triple.getArch() == Triple::ppc) {
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
271 // powerpc-apple-*
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
272 AddFeature("altivec");
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
273 } else if (Triple.getArch() == Triple::ppc64) {
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
274 // powerpc64-apple-*
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
275 AddFeature("64bit");
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
276 AddFeature("altivec");
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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277 }
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
278 }
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
279 }