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
|
//===- llvm/unittests/Transforms/Vectorize/VPlanVerifierTest.cpp ----------===//
//
// 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 "../lib/Transforms/Vectorize/VPlanVerifier.h"
#include "../lib/Transforms/Vectorize/VPlan.h"
#include "VPlanTestBase.h"
#include "llvm/IR/Instruction.h"
#include "llvm/IR/Instructions.h"
#include "gtest/gtest.h"
using namespace llvm;
using VPVerifierTest = VPlanTestBase;
namespace {
TEST_F(VPVerifierTest, VPInstructionUseBeforeDefSameBB) {
VPlan &Plan = getPlan();
VPValue *Zero = Plan.getOrAddLiveIn(ConstantInt::get(Type::getInt32Ty(C), 0));
VPInstruction *DefI = new VPInstruction(Instruction::Add, {Zero});
VPInstruction *UseI = new VPInstruction(Instruction::Sub, {DefI});
auto *CanIV = new VPCanonicalIVPHIRecipe(Zero, {});
VPBasicBlock *VPBB1 = Plan.getEntry();
VPBB1->appendRecipe(UseI);
VPBB1->appendRecipe(DefI);
VPBasicBlock *VPBB2 = Plan.createVPBasicBlock("");
VPBB2->appendRecipe(CanIV);
VPRegionBlock *R1 = Plan.createVPRegionBlock(VPBB2, VPBB2, "R1");
VPBlockUtils::connectBlocks(VPBB1, R1);
VPBlockUtils::connectBlocks(R1, Plan.getScalarHeader());
#if GTEST_HAS_STREAM_REDIRECTION
::testing::internal::CaptureStderr();
#endif
EXPECT_FALSE(verifyVPlanIsValid(Plan));
#if GTEST_HAS_STREAM_REDIRECTION
EXPECT_STREQ("Use before def!\n",
::testing::internal::GetCapturedStderr().c_str());
#endif
}
TEST_F(VPVerifierTest, VPInstructionUseBeforeDefDifferentBB) {
VPlan &Plan = getPlan();
VPValue *Zero = Plan.getOrAddLiveIn(ConstantInt::get(Type::getInt32Ty(C), 0));
VPInstruction *DefI = new VPInstruction(Instruction::Add, {Zero});
VPInstruction *UseI = new VPInstruction(Instruction::Sub, {DefI});
auto *CanIV = new VPCanonicalIVPHIRecipe(Zero, {});
VPInstruction *BranchOnCond =
new VPInstruction(VPInstruction::BranchOnCond, {CanIV});
VPBasicBlock *VPBB1 = Plan.getEntry();
VPBasicBlock *VPBB2 = Plan.createVPBasicBlock("");
VPBB1->appendRecipe(UseI);
VPBB2->appendRecipe(CanIV);
VPBB2->appendRecipe(DefI);
VPBB2->appendRecipe(BranchOnCond);
VPRegionBlock *R1 = Plan.createVPRegionBlock(VPBB2, VPBB2, "R1");
VPBlockUtils::connectBlocks(VPBB1, R1);
VPBlockUtils::connectBlocks(R1, Plan.getScalarHeader());
#if GTEST_HAS_STREAM_REDIRECTION
::testing::internal::CaptureStderr();
#endif
EXPECT_FALSE(verifyVPlanIsValid(Plan));
#if GTEST_HAS_STREAM_REDIRECTION
EXPECT_STREQ("Use before def!\n",
::testing::internal::GetCapturedStderr().c_str());
#endif
}
TEST_F(VPVerifierTest, VPBlendUseBeforeDefDifferentBB) {
VPlan &Plan = getPlan();
IntegerType *Int32 = IntegerType::get(C, 32);
auto *Phi = PHINode::Create(Int32, 1);
VPValue *Zero = Plan.getOrAddLiveIn(ConstantInt::get(Int32, 0));
VPInstruction *DefI = new VPInstruction(Instruction::Add, {Zero});
auto *CanIV = new VPCanonicalIVPHIRecipe(Zero, {});
VPInstruction *BranchOnCond =
new VPInstruction(VPInstruction::BranchOnCond, {CanIV});
auto *Blend = new VPBlendRecipe(Phi, {DefI});
VPBasicBlock *VPBB1 = Plan.getEntry();
VPBasicBlock *VPBB2 = Plan.createVPBasicBlock("");
VPBasicBlock *VPBB3 = Plan.createVPBasicBlock("");
VPBasicBlock *VPBB4 = Plan.createVPBasicBlock("");
VPBB2->appendRecipe(CanIV);
VPBB3->appendRecipe(Blend);
VPBB4->appendRecipe(DefI);
VPBB4->appendRecipe(BranchOnCond);
VPBlockUtils::connectBlocks(VPBB2, VPBB3);
VPBlockUtils::connectBlocks(VPBB3, VPBB4);
VPRegionBlock *R1 = Plan.createVPRegionBlock(VPBB2, VPBB4, "R1");
VPBlockUtils::connectBlocks(VPBB1, R1);
VPBB3->setParent(R1);
VPBlockUtils::connectBlocks(R1, Plan.getScalarHeader());
#if GTEST_HAS_STREAM_REDIRECTION
::testing::internal::CaptureStderr();
#endif
EXPECT_FALSE(verifyVPlanIsValid(Plan));
#if GTEST_HAS_STREAM_REDIRECTION
EXPECT_STREQ("Use before def!\n",
::testing::internal::GetCapturedStderr().c_str());
#endif
delete Phi;
}
TEST_F(VPVerifierTest, DuplicateSuccessorsOutsideRegion) {
VPlan &Plan = getPlan();
VPValue *Zero = Plan.getOrAddLiveIn(ConstantInt::get(Type::getInt32Ty(C), 0));
VPInstruction *I1 = new VPInstruction(Instruction::Add, {Zero});
auto *CanIV = new VPCanonicalIVPHIRecipe(Zero, {});
VPInstruction *BranchOnCond =
new VPInstruction(VPInstruction::BranchOnCond, {CanIV});
VPInstruction *BranchOnCond2 =
new VPInstruction(VPInstruction::BranchOnCond, {I1});
VPBasicBlock *VPBB1 = Plan.getEntry();
VPBasicBlock *VPBB2 = Plan.createVPBasicBlock("");
VPBB1->appendRecipe(I1);
VPBB1->appendRecipe(BranchOnCond2);
VPBB2->appendRecipe(CanIV);
VPBB2->appendRecipe(BranchOnCond);
VPRegionBlock *R1 = Plan.createVPRegionBlock(VPBB2, VPBB2, "R1");
VPBlockUtils::connectBlocks(VPBB1, R1);
VPBlockUtils::connectBlocks(VPBB1, R1);
VPBlockUtils::connectBlocks(R1, Plan.getScalarHeader());
#if GTEST_HAS_STREAM_REDIRECTION
::testing::internal::CaptureStderr();
#endif
EXPECT_FALSE(verifyVPlanIsValid(Plan));
#if GTEST_HAS_STREAM_REDIRECTION
EXPECT_STREQ("Multiple instances of the same successor.\n",
::testing::internal::GetCapturedStderr().c_str());
#endif
}
TEST_F(VPVerifierTest, DuplicateSuccessorsInsideRegion) {
VPlan &Plan = getPlan();
VPValue *Zero = Plan.getOrAddLiveIn(ConstantInt::get(Type::getInt32Ty(C), 0));
VPInstruction *I1 = new VPInstruction(Instruction::Add, {Zero});
auto *CanIV = new VPCanonicalIVPHIRecipe(Zero, {});
VPInstruction *BranchOnCond =
new VPInstruction(VPInstruction::BranchOnCond, {CanIV});
VPInstruction *BranchOnCond2 =
new VPInstruction(VPInstruction::BranchOnCond, {I1});
VPBasicBlock *VPBB1 = Plan.getEntry();
VPBasicBlock *VPBB2 = Plan.createVPBasicBlock("");
VPBasicBlock *VPBB3 = Plan.createVPBasicBlock("");
VPBB1->appendRecipe(I1);
VPBB2->appendRecipe(CanIV);
VPBB2->appendRecipe(BranchOnCond2);
VPBB3->appendRecipe(BranchOnCond);
VPBlockUtils::connectBlocks(VPBB2, VPBB3);
VPBlockUtils::connectBlocks(VPBB2, VPBB3);
VPRegionBlock *R1 = Plan.createVPRegionBlock(VPBB2, VPBB3, "R1");
VPBlockUtils::connectBlocks(VPBB1, R1);
VPBB3->setParent(R1);
VPBlockUtils::connectBlocks(R1, Plan.getScalarHeader());
#if GTEST_HAS_STREAM_REDIRECTION
::testing::internal::CaptureStderr();
#endif
EXPECT_FALSE(verifyVPlanIsValid(Plan));
#if GTEST_HAS_STREAM_REDIRECTION
EXPECT_STREQ("Multiple instances of the same successor.\n",
::testing::internal::GetCapturedStderr().c_str());
#endif
}
TEST_F(VPVerifierTest, BlockOutsideRegionWithParent) {
VPlan &Plan = getPlan();
VPBasicBlock *VPBB1 = Plan.getEntry();
VPBasicBlock *VPBB2 = Plan.createVPBasicBlock("");
VPValue *Zero = Plan.getOrAddLiveIn(ConstantInt::get(Type::getInt32Ty(C), 0));
auto *CanIV = new VPCanonicalIVPHIRecipe(Zero, {});
VPBB2->appendRecipe(CanIV);
VPInstruction *DefI = new VPInstruction(Instruction::Add, {Zero});
VPInstruction *BranchOnCond =
new VPInstruction(VPInstruction::BranchOnCond, {DefI});
VPBB1->appendRecipe(DefI);
VPBB2->appendRecipe(BranchOnCond);
VPRegionBlock *R1 = Plan.createVPRegionBlock(VPBB2, VPBB2, "R1");
VPBlockUtils::connectBlocks(VPBB1, R1);
VPBlockUtils::connectBlocks(R1, Plan.getScalarHeader());
VPBB1->setParent(R1);
#if GTEST_HAS_STREAM_REDIRECTION
::testing::internal::CaptureStderr();
#endif
EXPECT_FALSE(verifyVPlanIsValid(Plan));
#if GTEST_HAS_STREAM_REDIRECTION
EXPECT_STREQ("Predecessor is not in the same region.\n",
::testing::internal::GetCapturedStderr().c_str());
#endif
}
} // namespace
|
