1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
|
//===- VTEmitter.cpp - Generate properties from ValueTypes.td -------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "llvm/ADT/StringRef.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/TableGen/Record.h"
#include "llvm/TableGen/TableGenBackend.h"
#include <array>
#include <cassert>
#include <map>
using namespace llvm;
namespace {
class VTEmitter {
private:
RecordKeeper &Records;
public:
VTEmitter(RecordKeeper &R) : Records(R) {}
void run(raw_ostream &OS);
};
} // End anonymous namespace.
void VTEmitter::run(raw_ostream &OS) {
emitSourceFileHeader("ValueTypes Source Fragment", OS, Records);
std::array<const Record *, 256> VTsByNumber = {};
auto ValueTypes = Records.getAllDerivedDefinitions("ValueType");
for (auto *VT : ValueTypes) {
auto Number = VT->getValueAsInt("Value");
assert(0 <= Number && Number < (int)VTsByNumber.size() &&
"ValueType should be uint8_t");
assert(!VTsByNumber[Number] && "Duplicate ValueType");
VTsByNumber[Number] = VT;
}
struct VTRange {
StringRef First;
StringRef Last;
bool Closed;
};
std::map<StringRef, VTRange> VTRanges;
auto UpdateVTRange = [&VTRanges](const char *Key, StringRef Name,
bool Valid) {
if (Valid) {
if (!VTRanges.count(Key))
VTRanges[Key].First = Name;
assert(!VTRanges[Key].Closed && "Gap detected!");
VTRanges[Key].Last = Name;
} else if (VTRanges.count(Key)) {
VTRanges[Key].Closed = true;
}
};
OS << "#ifdef GET_VT_ATTR // (Ty, n, sz, Any, Int, FP, Vec, Sc)\n";
for (const auto *VT : VTsByNumber) {
if (!VT)
continue;
auto Name = VT->getValueAsString("LLVMName");
auto Value = VT->getValueAsInt("Value");
bool IsInteger = VT->getValueAsInt("isInteger");
bool IsFP = VT->getValueAsInt("isFP");
bool IsVector = VT->getValueAsInt("isVector");
bool IsScalable = VT->getValueAsInt("isScalable");
UpdateVTRange("INTEGER_FIXEDLEN_VECTOR_VALUETYPE", Name,
IsInteger && IsVector && !IsScalable);
UpdateVTRange("INTEGER_SCALABLE_VECTOR_VALUETYPE", Name,
IsInteger && IsScalable);
UpdateVTRange("FP_FIXEDLEN_VECTOR_VALUETYPE", Name,
IsFP && IsVector && !IsScalable);
UpdateVTRange("FP_SCALABLE_VECTOR_VALUETYPE", Name, IsFP && IsScalable);
UpdateVTRange("FIXEDLEN_VECTOR_VALUETYPE", Name, IsVector && !IsScalable);
UpdateVTRange("SCALABLE_VECTOR_VALUETYPE", Name, IsScalable);
UpdateVTRange("VECTOR_VALUETYPE", Name, IsVector);
UpdateVTRange("INTEGER_VALUETYPE", Name, IsInteger && !IsVector);
UpdateVTRange("FP_VALUETYPE", Name, IsFP && !IsVector);
UpdateVTRange("VALUETYPE", Name, Value < 224);
// clang-format off
OS << " GET_VT_ATTR("
<< Name << ", "
<< Value << ", "
<< VT->getValueAsInt("Size") << ", "
<< VT->getValueAsInt("isOverloaded") << ", "
<< (IsInteger ? Name[0] == 'i' ? 3 : 1 : 0) << ", "
<< (IsFP ? Name[0] == 'f' ? 3 : 1 : 0) << ", "
<< IsVector << ", "
<< IsScalable << ")\n";
// clang-format on
}
OS << "#endif\n\n";
OS << "#ifdef GET_VT_RANGES\n";
for (const auto &KV : VTRanges) {
assert(KV.second.Closed);
OS << " FIRST_" << KV.first << " = " << KV.second.First << ",\n"
<< " LAST_" << KV.first << " = " << KV.second.Last << ",\n";
}
OS << "#endif\n\n";
OS << "#ifdef GET_VT_VECATTR // (Ty, Sc, nElem, ElTy, ElSz)\n";
for (const auto *VT : VTsByNumber) {
if (!VT || !VT->getValueAsInt("isVector"))
continue;
const auto *ElTy = VT->getValueAsDef("ElementType");
assert(ElTy);
// clang-format off
OS << " GET_VT_VECATTR("
<< VT->getValueAsString("LLVMName") << ", "
<< VT->getValueAsInt("isScalable") << ", "
<< VT->getValueAsInt("nElem") << ", "
<< ElTy->getName() << ", "
<< ElTy->getValueAsInt("Size") << ")\n";
// clang-format on
}
OS << "#endif\n\n";
}
static TableGen::Emitter::OptClass<VTEmitter> X("gen-vt", "Generate ValueType");
|
