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
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
|
#pragma once
#ifdef __GNUC__
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wunused-parameter"
#endif
//====- TargetFolder.h - Constant folding helper ---------------*- C++ -*-====//
//
// 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
//
//===----------------------------------------------------------------------===//
//
// This file defines the TargetFolder class, a helper for IRBuilder.
// It provides IRBuilder with a set of methods for creating constants with
// target dependent folding, in addition to the same target-independent
// folding that the ConstantFolder class provides. For general constant
// creation and folding, use ConstantExpr and the routines in
// llvm/Analysis/ConstantFolding.h.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_ANALYSIS_TARGETFOLDER_H
#define LLVM_ANALYSIS_TARGETFOLDER_H
#include "llvm/ADT/ArrayRef.h"
#include "llvm/Analysis/ConstantFolding.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/InstrTypes.h"
#include "llvm/IR/IRBuilderFolder.h"
namespace llvm {
class DataLayout;
/// TargetFolder - Create constants with target dependent folding.
class TargetFolder final : public IRBuilderFolder {
const DataLayout &DL;
/// Fold - Fold the constant using target specific information.
Constant *Fold(Constant *C) const {
return ConstantFoldConstant(C, DL);
}
virtual void anchor();
public:
explicit TargetFolder(const DataLayout &DL) : DL(DL) {}
//===--------------------------------------------------------------------===//
// Binary Operators
//===--------------------------------------------------------------------===//
Constant *CreateAdd(Constant *LHS, Constant *RHS,
bool HasNUW = false, bool HasNSW = false) const override {
return Fold(ConstantExpr::getAdd(LHS, RHS, HasNUW, HasNSW));
}
Constant *CreateFAdd(Constant *LHS, Constant *RHS) const override {
return Fold(ConstantExpr::getFAdd(LHS, RHS));
}
Constant *CreateSub(Constant *LHS, Constant *RHS,
bool HasNUW = false, bool HasNSW = false) const override {
return Fold(ConstantExpr::getSub(LHS, RHS, HasNUW, HasNSW));
}
Constant *CreateFSub(Constant *LHS, Constant *RHS) const override {
return Fold(ConstantExpr::getFSub(LHS, RHS));
}
Constant *CreateMul(Constant *LHS, Constant *RHS,
bool HasNUW = false, bool HasNSW = false) const override {
return Fold(ConstantExpr::getMul(LHS, RHS, HasNUW, HasNSW));
}
Constant *CreateFMul(Constant *LHS, Constant *RHS) const override {
return Fold(ConstantExpr::getFMul(LHS, RHS));
}
Constant *CreateUDiv(Constant *LHS, Constant *RHS,
bool isExact = false) const override {
return Fold(ConstantExpr::getUDiv(LHS, RHS, isExact));
}
Constant *CreateSDiv(Constant *LHS, Constant *RHS,
bool isExact = false) const override {
return Fold(ConstantExpr::getSDiv(LHS, RHS, isExact));
}
Constant *CreateFDiv(Constant *LHS, Constant *RHS) const override {
return Fold(ConstantExpr::getFDiv(LHS, RHS));
}
Constant *CreateURem(Constant *LHS, Constant *RHS) const override {
return Fold(ConstantExpr::getURem(LHS, RHS));
}
Constant *CreateSRem(Constant *LHS, Constant *RHS) const override {
return Fold(ConstantExpr::getSRem(LHS, RHS));
}
Constant *CreateFRem(Constant *LHS, Constant *RHS) const override {
return Fold(ConstantExpr::getFRem(LHS, RHS));
}
Constant *CreateShl(Constant *LHS, Constant *RHS,
bool HasNUW = false, bool HasNSW = false) const override {
return Fold(ConstantExpr::getShl(LHS, RHS, HasNUW, HasNSW));
}
Constant *CreateLShr(Constant *LHS, Constant *RHS,
bool isExact = false) const override {
return Fold(ConstantExpr::getLShr(LHS, RHS, isExact));
}
Constant *CreateAShr(Constant *LHS, Constant *RHS,
bool isExact = false) const override {
return Fold(ConstantExpr::getAShr(LHS, RHS, isExact));
}
Constant *CreateAnd(Constant *LHS, Constant *RHS) const override {
return Fold(ConstantExpr::getAnd(LHS, RHS));
}
Constant *CreateOr(Constant *LHS, Constant *RHS) const override {
return Fold(ConstantExpr::getOr(LHS, RHS));
}
Constant *CreateXor(Constant *LHS, Constant *RHS) const override {
return Fold(ConstantExpr::getXor(LHS, RHS));
}
Constant *CreateBinOp(Instruction::BinaryOps Opc,
Constant *LHS, Constant *RHS) const override {
return Fold(ConstantExpr::get(Opc, LHS, RHS));
}
//===--------------------------------------------------------------------===//
// Unary Operators
//===--------------------------------------------------------------------===//
Constant *CreateNeg(Constant *C,
bool HasNUW = false, bool HasNSW = false) const override {
return Fold(ConstantExpr::getNeg(C, HasNUW, HasNSW));
}
Constant *CreateFNeg(Constant *C) const override {
return Fold(ConstantExpr::getFNeg(C));
}
Constant *CreateNot(Constant *C) const override {
return Fold(ConstantExpr::getNot(C));
}
Constant *CreateUnOp(Instruction::UnaryOps Opc, Constant *C) const override {
return Fold(ConstantExpr::get(Opc, C));
}
//===--------------------------------------------------------------------===//
// Memory Instructions
//===--------------------------------------------------------------------===//
Constant *CreateGetElementPtr(Type *Ty, Constant *C,
ArrayRef<Constant *> IdxList) const override {
return Fold(ConstantExpr::getGetElementPtr(Ty, C, IdxList));
}
Constant *CreateGetElementPtr(Type *Ty, Constant *C,
Constant *Idx) const override {
// This form of the function only exists to avoid ambiguous overload
// warnings about whether to convert Idx to ArrayRef<Constant *> or
// ArrayRef<Value *>.
return Fold(ConstantExpr::getGetElementPtr(Ty, C, Idx));
}
Constant *CreateGetElementPtr(Type *Ty, Constant *C,
ArrayRef<Value *> IdxList) const override {
return Fold(ConstantExpr::getGetElementPtr(Ty, C, IdxList));
}
Constant *CreateInBoundsGetElementPtr(
Type *Ty, Constant *C, ArrayRef<Constant *> IdxList) const override {
return Fold(ConstantExpr::getInBoundsGetElementPtr(Ty, C, IdxList));
}
Constant *CreateInBoundsGetElementPtr(Type *Ty, Constant *C,
Constant *Idx) const override {
// This form of the function only exists to avoid ambiguous overload
// warnings about whether to convert Idx to ArrayRef<Constant *> or
// ArrayRef<Value *>.
return Fold(ConstantExpr::getInBoundsGetElementPtr(Ty, C, Idx));
}
Constant *CreateInBoundsGetElementPtr(
Type *Ty, Constant *C, ArrayRef<Value *> IdxList) const override {
return Fold(ConstantExpr::getInBoundsGetElementPtr(Ty, C, IdxList));
}
//===--------------------------------------------------------------------===//
// Cast/Conversion Operators
//===--------------------------------------------------------------------===//
Constant *CreateCast(Instruction::CastOps Op, Constant *C,
Type *DestTy) const override {
if (C->getType() == DestTy)
return C; // avoid calling Fold
return Fold(ConstantExpr::getCast(Op, C, DestTy));
}
Constant *CreateIntCast(Constant *C, Type *DestTy,
bool isSigned) const override {
if (C->getType() == DestTy)
return C; // avoid calling Fold
return Fold(ConstantExpr::getIntegerCast(C, DestTy, isSigned));
}
Constant *CreatePointerCast(Constant *C, Type *DestTy) const override {
if (C->getType() == DestTy)
return C; // avoid calling Fold
return Fold(ConstantExpr::getPointerCast(C, DestTy));
}
Constant *CreateFPCast(Constant *C, Type *DestTy) const override {
if (C->getType() == DestTy)
return C; // avoid calling Fold
return Fold(ConstantExpr::getFPCast(C, DestTy));
}
Constant *CreateBitCast(Constant *C, Type *DestTy) const override {
return CreateCast(Instruction::BitCast, C, DestTy);
}
Constant *CreateIntToPtr(Constant *C, Type *DestTy) const override {
return CreateCast(Instruction::IntToPtr, C, DestTy);
}
Constant *CreatePtrToInt(Constant *C, Type *DestTy) const override {
return CreateCast(Instruction::PtrToInt, C, DestTy);
}
Constant *CreateZExtOrBitCast(Constant *C, Type *DestTy) const override {
if (C->getType() == DestTy)
return C; // avoid calling Fold
return Fold(ConstantExpr::getZExtOrBitCast(C, DestTy));
}
Constant *CreateSExtOrBitCast(Constant *C, Type *DestTy) const override {
if (C->getType() == DestTy)
return C; // avoid calling Fold
return Fold(ConstantExpr::getSExtOrBitCast(C, DestTy));
}
Constant *CreateTruncOrBitCast(Constant *C, Type *DestTy) const override {
if (C->getType() == DestTy)
return C; // avoid calling Fold
return Fold(ConstantExpr::getTruncOrBitCast(C, DestTy));
}
Constant *CreatePointerBitCastOrAddrSpaceCast(Constant *C,
Type *DestTy) const override {
if (C->getType() == DestTy)
return C; // avoid calling Fold
return Fold(ConstantExpr::getPointerBitCastOrAddrSpaceCast(C, DestTy));
}
//===--------------------------------------------------------------------===//
// Compare Instructions
//===--------------------------------------------------------------------===//
Constant *CreateICmp(CmpInst::Predicate P, Constant *LHS,
Constant *RHS) const override {
return Fold(ConstantExpr::getCompare(P, LHS, RHS));
}
Constant *CreateFCmp(CmpInst::Predicate P, Constant *LHS,
Constant *RHS) const override {
return Fold(ConstantExpr::getCompare(P, LHS, RHS));
}
//===--------------------------------------------------------------------===//
// Other Instructions
//===--------------------------------------------------------------------===//
Constant *CreateSelect(Constant *C, Constant *True,
Constant *False) const override {
return Fold(ConstantExpr::getSelect(C, True, False));
}
Constant *CreateExtractElement(Constant *Vec, Constant *Idx) const override {
return Fold(ConstantExpr::getExtractElement(Vec, Idx));
}
Constant *CreateInsertElement(Constant *Vec, Constant *NewElt,
Constant *Idx) const override {
return Fold(ConstantExpr::getInsertElement(Vec, NewElt, Idx));
}
Constant *CreateShuffleVector(Constant *V1, Constant *V2,
ArrayRef<int> Mask) const override {
return Fold(ConstantExpr::getShuffleVector(V1, V2, Mask));
}
Constant *CreateExtractValue(Constant *Agg,
ArrayRef<unsigned> IdxList) const override {
return Fold(ConstantExpr::getExtractValue(Agg, IdxList));
}
Constant *CreateInsertValue(Constant *Agg, Constant *Val,
ArrayRef<unsigned> IdxList) const override {
return Fold(ConstantExpr::getInsertValue(Agg, Val, IdxList));
}
};
}
#endif
#ifdef __GNUC__
#pragma GCC diagnostic pop
#endif
|
