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1a4d82fc | 1 | //===- ConstantRangeTest.cpp - ConstantRange tests ------------------------===// |
223e47cc LB |
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 | ||
1a4d82fc | 10 | #include "llvm/IR/ConstantRange.h" |
970d7e83 | 11 | #include "llvm/IR/Instructions.h" |
223e47cc LB |
12 | #include "gtest/gtest.h" |
13 | ||
14 | using namespace llvm; | |
15 | ||
16 | namespace { | |
17 | ||
18 | class ConstantRangeTest : public ::testing::Test { | |
19 | protected: | |
20 | static ConstantRange Full; | |
21 | static ConstantRange Empty; | |
22 | static ConstantRange One; | |
23 | static ConstantRange Some; | |
24 | static ConstantRange Wrap; | |
25 | }; | |
26 | ||
27 | ConstantRange ConstantRangeTest::Full(16); | |
28 | ConstantRange ConstantRangeTest::Empty(16, false); | |
29 | ConstantRange ConstantRangeTest::One(APInt(16, 0xa)); | |
30 | ConstantRange ConstantRangeTest::Some(APInt(16, 0xa), APInt(16, 0xaaa)); | |
31 | ConstantRange ConstantRangeTest::Wrap(APInt(16, 0xaaa), APInt(16, 0xa)); | |
32 | ||
33 | TEST_F(ConstantRangeTest, Basics) { | |
34 | EXPECT_TRUE(Full.isFullSet()); | |
35 | EXPECT_FALSE(Full.isEmptySet()); | |
36 | EXPECT_TRUE(Full.inverse().isEmptySet()); | |
37 | EXPECT_FALSE(Full.isWrappedSet()); | |
38 | EXPECT_TRUE(Full.contains(APInt(16, 0x0))); | |
39 | EXPECT_TRUE(Full.contains(APInt(16, 0x9))); | |
40 | EXPECT_TRUE(Full.contains(APInt(16, 0xa))); | |
41 | EXPECT_TRUE(Full.contains(APInt(16, 0xaa9))); | |
42 | EXPECT_TRUE(Full.contains(APInt(16, 0xaaa))); | |
43 | ||
44 | EXPECT_FALSE(Empty.isFullSet()); | |
45 | EXPECT_TRUE(Empty.isEmptySet()); | |
46 | EXPECT_TRUE(Empty.inverse().isFullSet()); | |
47 | EXPECT_FALSE(Empty.isWrappedSet()); | |
48 | EXPECT_FALSE(Empty.contains(APInt(16, 0x0))); | |
49 | EXPECT_FALSE(Empty.contains(APInt(16, 0x9))); | |
50 | EXPECT_FALSE(Empty.contains(APInt(16, 0xa))); | |
51 | EXPECT_FALSE(Empty.contains(APInt(16, 0xaa9))); | |
52 | EXPECT_FALSE(Empty.contains(APInt(16, 0xaaa))); | |
53 | ||
54 | EXPECT_FALSE(One.isFullSet()); | |
55 | EXPECT_FALSE(One.isEmptySet()); | |
56 | EXPECT_FALSE(One.isWrappedSet()); | |
57 | EXPECT_FALSE(One.contains(APInt(16, 0x0))); | |
58 | EXPECT_FALSE(One.contains(APInt(16, 0x9))); | |
59 | EXPECT_TRUE(One.contains(APInt(16, 0xa))); | |
60 | EXPECT_FALSE(One.contains(APInt(16, 0xaa9))); | |
61 | EXPECT_FALSE(One.contains(APInt(16, 0xaaa))); | |
62 | EXPECT_FALSE(One.inverse().contains(APInt(16, 0xa))); | |
63 | ||
64 | EXPECT_FALSE(Some.isFullSet()); | |
65 | EXPECT_FALSE(Some.isEmptySet()); | |
66 | EXPECT_FALSE(Some.isWrappedSet()); | |
67 | EXPECT_FALSE(Some.contains(APInt(16, 0x0))); | |
68 | EXPECT_FALSE(Some.contains(APInt(16, 0x9))); | |
69 | EXPECT_TRUE(Some.contains(APInt(16, 0xa))); | |
70 | EXPECT_TRUE(Some.contains(APInt(16, 0xaa9))); | |
71 | EXPECT_FALSE(Some.contains(APInt(16, 0xaaa))); | |
72 | ||
73 | EXPECT_FALSE(Wrap.isFullSet()); | |
74 | EXPECT_FALSE(Wrap.isEmptySet()); | |
75 | EXPECT_TRUE(Wrap.isWrappedSet()); | |
76 | EXPECT_TRUE(Wrap.contains(APInt(16, 0x0))); | |
77 | EXPECT_TRUE(Wrap.contains(APInt(16, 0x9))); | |
78 | EXPECT_FALSE(Wrap.contains(APInt(16, 0xa))); | |
79 | EXPECT_FALSE(Wrap.contains(APInt(16, 0xaa9))); | |
80 | EXPECT_TRUE(Wrap.contains(APInt(16, 0xaaa))); | |
81 | } | |
82 | ||
83 | TEST_F(ConstantRangeTest, Equality) { | |
84 | EXPECT_EQ(Full, Full); | |
85 | EXPECT_EQ(Empty, Empty); | |
86 | EXPECT_EQ(One, One); | |
87 | EXPECT_EQ(Some, Some); | |
88 | EXPECT_EQ(Wrap, Wrap); | |
89 | EXPECT_NE(Full, Empty); | |
90 | EXPECT_NE(Full, One); | |
91 | EXPECT_NE(Full, Some); | |
92 | EXPECT_NE(Full, Wrap); | |
93 | EXPECT_NE(Empty, One); | |
94 | EXPECT_NE(Empty, Some); | |
95 | EXPECT_NE(Empty, Wrap); | |
96 | EXPECT_NE(One, Some); | |
97 | EXPECT_NE(One, Wrap); | |
98 | EXPECT_NE(Some, Wrap); | |
99 | } | |
100 | ||
101 | TEST_F(ConstantRangeTest, SingleElement) { | |
1a4d82fc JJ |
102 | EXPECT_EQ(Full.getSingleElement(), static_cast<APInt *>(nullptr)); |
103 | EXPECT_EQ(Empty.getSingleElement(), static_cast<APInt *>(nullptr)); | |
223e47cc | 104 | EXPECT_EQ(*One.getSingleElement(), APInt(16, 0xa)); |
1a4d82fc JJ |
105 | EXPECT_EQ(Some.getSingleElement(), static_cast<APInt *>(nullptr)); |
106 | EXPECT_EQ(Wrap.getSingleElement(), static_cast<APInt *>(nullptr)); | |
223e47cc LB |
107 | |
108 | EXPECT_FALSE(Full.isSingleElement()); | |
109 | EXPECT_FALSE(Empty.isSingleElement()); | |
110 | EXPECT_TRUE(One.isSingleElement()); | |
111 | EXPECT_FALSE(Some.isSingleElement()); | |
112 | EXPECT_FALSE(Wrap.isSingleElement()); | |
113 | } | |
114 | ||
115 | TEST_F(ConstantRangeTest, GetSetSize) { | |
116 | EXPECT_EQ(Full.getSetSize(), APInt(17, 65536)); | |
117 | EXPECT_EQ(Empty.getSetSize(), APInt(17, 0)); | |
118 | EXPECT_EQ(One.getSetSize(), APInt(17, 1)); | |
119 | EXPECT_EQ(Some.getSetSize(), APInt(17, 0xaa0)); | |
120 | ||
121 | ConstantRange Wrap(APInt(4, 7), APInt(4, 3)); | |
122 | ConstantRange Wrap2(APInt(4, 8), APInt(4, 7)); | |
123 | EXPECT_EQ(Wrap.getSetSize(), APInt(5, 12)); | |
124 | EXPECT_EQ(Wrap2.getSetSize(), APInt(5, 15)); | |
125 | } | |
126 | ||
127 | TEST_F(ConstantRangeTest, GetMinsAndMaxes) { | |
128 | EXPECT_EQ(Full.getUnsignedMax(), APInt(16, UINT16_MAX)); | |
129 | EXPECT_EQ(One.getUnsignedMax(), APInt(16, 0xa)); | |
130 | EXPECT_EQ(Some.getUnsignedMax(), APInt(16, 0xaa9)); | |
131 | EXPECT_EQ(Wrap.getUnsignedMax(), APInt(16, UINT16_MAX)); | |
132 | ||
133 | EXPECT_EQ(Full.getUnsignedMin(), APInt(16, 0)); | |
134 | EXPECT_EQ(One.getUnsignedMin(), APInt(16, 0xa)); | |
135 | EXPECT_EQ(Some.getUnsignedMin(), APInt(16, 0xa)); | |
136 | EXPECT_EQ(Wrap.getUnsignedMin(), APInt(16, 0)); | |
137 | ||
138 | EXPECT_EQ(Full.getSignedMax(), APInt(16, INT16_MAX)); | |
139 | EXPECT_EQ(One.getSignedMax(), APInt(16, 0xa)); | |
140 | EXPECT_EQ(Some.getSignedMax(), APInt(16, 0xaa9)); | |
141 | EXPECT_EQ(Wrap.getSignedMax(), APInt(16, INT16_MAX)); | |
142 | ||
143 | EXPECT_EQ(Full.getSignedMin(), APInt(16, (uint64_t)INT16_MIN)); | |
144 | EXPECT_EQ(One.getSignedMin(), APInt(16, 0xa)); | |
145 | EXPECT_EQ(Some.getSignedMin(), APInt(16, 0xa)); | |
146 | EXPECT_EQ(Wrap.getSignedMin(), APInt(16, (uint64_t)INT16_MIN)); | |
147 | ||
148 | // Found by Klee | |
149 | EXPECT_EQ(ConstantRange(APInt(4, 7), APInt(4, 0)).getSignedMax(), | |
150 | APInt(4, 7)); | |
151 | } | |
152 | ||
153 | TEST_F(ConstantRangeTest, SignWrapped) { | |
154 | EXPECT_TRUE(Full.isSignWrappedSet()); | |
155 | EXPECT_FALSE(Empty.isSignWrappedSet()); | |
156 | EXPECT_FALSE(One.isSignWrappedSet()); | |
157 | EXPECT_FALSE(Some.isSignWrappedSet()); | |
158 | EXPECT_TRUE(Wrap.isSignWrappedSet()); | |
159 | ||
160 | EXPECT_FALSE(ConstantRange(APInt(8, 127), APInt(8, 128)).isSignWrappedSet()); | |
161 | EXPECT_TRUE(ConstantRange(APInt(8, 127), APInt(8, 129)).isSignWrappedSet()); | |
162 | EXPECT_FALSE(ConstantRange(APInt(8, 128), APInt(8, 129)).isSignWrappedSet()); | |
163 | EXPECT_TRUE(ConstantRange(APInt(8, 10), APInt(8, 9)).isSignWrappedSet()); | |
164 | EXPECT_TRUE(ConstantRange(APInt(8, 10), APInt(8, 250)).isSignWrappedSet()); | |
165 | EXPECT_FALSE(ConstantRange(APInt(8, 250), APInt(8, 10)).isSignWrappedSet()); | |
166 | EXPECT_FALSE(ConstantRange(APInt(8, 250), APInt(8, 251)).isSignWrappedSet()); | |
167 | } | |
168 | ||
169 | TEST_F(ConstantRangeTest, Trunc) { | |
170 | ConstantRange TFull = Full.truncate(10); | |
171 | ConstantRange TEmpty = Empty.truncate(10); | |
172 | ConstantRange TOne = One.truncate(10); | |
173 | ConstantRange TSome = Some.truncate(10); | |
174 | ConstantRange TWrap = Wrap.truncate(10); | |
175 | EXPECT_TRUE(TFull.isFullSet()); | |
176 | EXPECT_TRUE(TEmpty.isEmptySet()); | |
177 | EXPECT_EQ(TOne, ConstantRange(One.getLower().trunc(10), | |
178 | One.getUpper().trunc(10))); | |
179 | EXPECT_TRUE(TSome.isFullSet()); | |
180 | } | |
181 | ||
182 | TEST_F(ConstantRangeTest, ZExt) { | |
183 | ConstantRange ZFull = Full.zeroExtend(20); | |
184 | ConstantRange ZEmpty = Empty.zeroExtend(20); | |
185 | ConstantRange ZOne = One.zeroExtend(20); | |
186 | ConstantRange ZSome = Some.zeroExtend(20); | |
187 | ConstantRange ZWrap = Wrap.zeroExtend(20); | |
188 | EXPECT_EQ(ZFull, ConstantRange(APInt(20, 0), APInt(20, 0x10000))); | |
189 | EXPECT_TRUE(ZEmpty.isEmptySet()); | |
190 | EXPECT_EQ(ZOne, ConstantRange(One.getLower().zext(20), | |
191 | One.getUpper().zext(20))); | |
192 | EXPECT_EQ(ZSome, ConstantRange(Some.getLower().zext(20), | |
193 | Some.getUpper().zext(20))); | |
194 | EXPECT_EQ(ZWrap, ConstantRange(APInt(20, 0), APInt(20, 0x10000))); | |
195 | ||
196 | // zext([5, 0), 3->7) = [5, 8) | |
197 | ConstantRange FiveZero(APInt(3, 5), APInt(3, 0)); | |
198 | EXPECT_EQ(FiveZero.zeroExtend(7), ConstantRange(APInt(7, 5), APInt(7, 8))); | |
199 | } | |
200 | ||
201 | TEST_F(ConstantRangeTest, SExt) { | |
202 | ConstantRange SFull = Full.signExtend(20); | |
203 | ConstantRange SEmpty = Empty.signExtend(20); | |
204 | ConstantRange SOne = One.signExtend(20); | |
205 | ConstantRange SSome = Some.signExtend(20); | |
206 | ConstantRange SWrap = Wrap.signExtend(20); | |
207 | EXPECT_EQ(SFull, ConstantRange(APInt(20, (uint64_t)INT16_MIN, true), | |
208 | APInt(20, INT16_MAX + 1, true))); | |
209 | EXPECT_TRUE(SEmpty.isEmptySet()); | |
210 | EXPECT_EQ(SOne, ConstantRange(One.getLower().sext(20), | |
211 | One.getUpper().sext(20))); | |
212 | EXPECT_EQ(SSome, ConstantRange(Some.getLower().sext(20), | |
213 | Some.getUpper().sext(20))); | |
214 | EXPECT_EQ(SWrap, ConstantRange(APInt(20, (uint64_t)INT16_MIN, true), | |
215 | APInt(20, INT16_MAX + 1, true))); | |
216 | ||
217 | EXPECT_EQ(ConstantRange(APInt(8, 120), APInt(8, 140)).signExtend(16), | |
218 | ConstantRange(APInt(16, -128), APInt(16, 128))); | |
1a4d82fc JJ |
219 | |
220 | EXPECT_EQ(ConstantRange(APInt(16, 0x0200), APInt(16, 0x8000)).signExtend(19), | |
221 | ConstantRange(APInt(19, 0x0200), APInt(19, 0x8000))); | |
223e47cc LB |
222 | } |
223 | ||
224 | TEST_F(ConstantRangeTest, IntersectWith) { | |
225 | EXPECT_EQ(Empty.intersectWith(Full), Empty); | |
226 | EXPECT_EQ(Empty.intersectWith(Empty), Empty); | |
227 | EXPECT_EQ(Empty.intersectWith(One), Empty); | |
228 | EXPECT_EQ(Empty.intersectWith(Some), Empty); | |
229 | EXPECT_EQ(Empty.intersectWith(Wrap), Empty); | |
230 | EXPECT_EQ(Full.intersectWith(Full), Full); | |
231 | EXPECT_EQ(Some.intersectWith(Some), Some); | |
232 | EXPECT_EQ(Some.intersectWith(One), One); | |
233 | EXPECT_EQ(Full.intersectWith(One), One); | |
234 | EXPECT_EQ(Full.intersectWith(Some), Some); | |
235 | EXPECT_EQ(Some.intersectWith(Wrap), Empty); | |
236 | EXPECT_EQ(One.intersectWith(Wrap), Empty); | |
237 | EXPECT_EQ(One.intersectWith(Wrap), Wrap.intersectWith(One)); | |
238 | ||
239 | // Klee generated testcase from PR4545. | |
240 | // The intersection of i16 [4, 2) and [6, 5) is disjoint, looking like | |
241 | // 01..4.6789ABCDEF where the dots represent values not in the intersection. | |
242 | ConstantRange LHS(APInt(16, 4), APInt(16, 2)); | |
243 | ConstantRange RHS(APInt(16, 6), APInt(16, 5)); | |
244 | EXPECT_TRUE(LHS.intersectWith(RHS) == LHS); | |
245 | ||
246 | // previous bug: intersection of [min, 3) and [2, max) should be 2 | |
247 | LHS = ConstantRange(APInt(32, -2147483646), APInt(32, 3)); | |
248 | RHS = ConstantRange(APInt(32, 2), APInt(32, 2147483646)); | |
249 | EXPECT_EQ(LHS.intersectWith(RHS), ConstantRange(APInt(32, 2))); | |
250 | ||
251 | // [2, 0) /\ [4, 3) = [2, 0) | |
252 | LHS = ConstantRange(APInt(32, 2), APInt(32, 0)); | |
253 | RHS = ConstantRange(APInt(32, 4), APInt(32, 3)); | |
254 | EXPECT_EQ(LHS.intersectWith(RHS), ConstantRange(APInt(32, 2), APInt(32, 0))); | |
255 | ||
256 | // [2, 0) /\ [4, 2) = [4, 0) | |
257 | LHS = ConstantRange(APInt(32, 2), APInt(32, 0)); | |
258 | RHS = ConstantRange(APInt(32, 4), APInt(32, 2)); | |
259 | EXPECT_EQ(LHS.intersectWith(RHS), ConstantRange(APInt(32, 4), APInt(32, 0))); | |
260 | ||
261 | // [4, 2) /\ [5, 1) = [5, 1) | |
262 | LHS = ConstantRange(APInt(32, 4), APInt(32, 2)); | |
263 | RHS = ConstantRange(APInt(32, 5), APInt(32, 1)); | |
264 | EXPECT_EQ(LHS.intersectWith(RHS), ConstantRange(APInt(32, 5), APInt(32, 1))); | |
265 | ||
266 | // [2, 0) /\ [7, 4) = [7, 4) | |
267 | LHS = ConstantRange(APInt(32, 2), APInt(32, 0)); | |
268 | RHS = ConstantRange(APInt(32, 7), APInt(32, 4)); | |
269 | EXPECT_EQ(LHS.intersectWith(RHS), ConstantRange(APInt(32, 7), APInt(32, 4))); | |
270 | ||
271 | // [4, 2) /\ [1, 0) = [1, 0) | |
272 | LHS = ConstantRange(APInt(32, 4), APInt(32, 2)); | |
273 | RHS = ConstantRange(APInt(32, 1), APInt(32, 0)); | |
274 | EXPECT_EQ(LHS.intersectWith(RHS), ConstantRange(APInt(32, 4), APInt(32, 2))); | |
275 | ||
276 | // [15, 0) /\ [7, 6) = [15, 0) | |
277 | LHS = ConstantRange(APInt(32, 15), APInt(32, 0)); | |
278 | RHS = ConstantRange(APInt(32, 7), APInt(32, 6)); | |
279 | EXPECT_EQ(LHS.intersectWith(RHS), ConstantRange(APInt(32, 15), APInt(32, 0))); | |
280 | } | |
281 | ||
282 | TEST_F(ConstantRangeTest, UnionWith) { | |
283 | EXPECT_EQ(Wrap.unionWith(One), | |
284 | ConstantRange(APInt(16, 0xaaa), APInt(16, 0xb))); | |
285 | EXPECT_EQ(One.unionWith(Wrap), Wrap.unionWith(One)); | |
286 | EXPECT_EQ(Empty.unionWith(Empty), Empty); | |
287 | EXPECT_EQ(Full.unionWith(Full), Full); | |
288 | EXPECT_EQ(Some.unionWith(Wrap), Full); | |
289 | ||
290 | // PR4545 | |
291 | EXPECT_EQ(ConstantRange(APInt(16, 14), APInt(16, 1)).unionWith( | |
292 | ConstantRange(APInt(16, 0), APInt(16, 8))), | |
293 | ConstantRange(APInt(16, 14), APInt(16, 8))); | |
294 | EXPECT_EQ(ConstantRange(APInt(16, 6), APInt(16, 4)).unionWith( | |
295 | ConstantRange(APInt(16, 4), APInt(16, 0))), | |
296 | ConstantRange(16)); | |
297 | EXPECT_EQ(ConstantRange(APInt(16, 1), APInt(16, 0)).unionWith( | |
298 | ConstantRange(APInt(16, 2), APInt(16, 1))), | |
299 | ConstantRange(16)); | |
300 | } | |
301 | ||
302 | TEST_F(ConstantRangeTest, SetDifference) { | |
303 | EXPECT_EQ(Full.difference(Empty), Full); | |
304 | EXPECT_EQ(Full.difference(Full), Empty); | |
305 | EXPECT_EQ(Empty.difference(Empty), Empty); | |
306 | EXPECT_EQ(Empty.difference(Full), Empty); | |
307 | ||
308 | ConstantRange A(APInt(16, 3), APInt(16, 7)); | |
309 | ConstantRange B(APInt(16, 5), APInt(16, 9)); | |
310 | ConstantRange C(APInt(16, 3), APInt(16, 5)); | |
311 | ConstantRange D(APInt(16, 7), APInt(16, 9)); | |
312 | ConstantRange E(APInt(16, 5), APInt(16, 4)); | |
313 | ConstantRange F(APInt(16, 7), APInt(16, 3)); | |
314 | EXPECT_EQ(A.difference(B), C); | |
315 | EXPECT_EQ(B.difference(A), D); | |
316 | EXPECT_EQ(E.difference(A), F); | |
317 | } | |
318 | ||
319 | TEST_F(ConstantRangeTest, SubtractAPInt) { | |
320 | EXPECT_EQ(Full.subtract(APInt(16, 4)), Full); | |
321 | EXPECT_EQ(Empty.subtract(APInt(16, 4)), Empty); | |
322 | EXPECT_EQ(Some.subtract(APInt(16, 4)), | |
323 | ConstantRange(APInt(16, 0x6), APInt(16, 0xaa6))); | |
324 | EXPECT_EQ(Wrap.subtract(APInt(16, 4)), | |
325 | ConstantRange(APInt(16, 0xaa6), APInt(16, 0x6))); | |
326 | EXPECT_EQ(One.subtract(APInt(16, 4)), | |
327 | ConstantRange(APInt(16, 0x6))); | |
328 | } | |
329 | ||
330 | TEST_F(ConstantRangeTest, Add) { | |
331 | EXPECT_EQ(Full.add(APInt(16, 4)), Full); | |
332 | EXPECT_EQ(Full.add(Full), Full); | |
333 | EXPECT_EQ(Full.add(Empty), Empty); | |
334 | EXPECT_EQ(Full.add(One), Full); | |
335 | EXPECT_EQ(Full.add(Some), Full); | |
336 | EXPECT_EQ(Full.add(Wrap), Full); | |
337 | EXPECT_EQ(Empty.add(Empty), Empty); | |
338 | EXPECT_EQ(Empty.add(One), Empty); | |
339 | EXPECT_EQ(Empty.add(Some), Empty); | |
340 | EXPECT_EQ(Empty.add(Wrap), Empty); | |
341 | EXPECT_EQ(Empty.add(APInt(16, 4)), Empty); | |
342 | EXPECT_EQ(Some.add(APInt(16, 4)), | |
343 | ConstantRange(APInt(16, 0xe), APInt(16, 0xaae))); | |
344 | EXPECT_EQ(Wrap.add(APInt(16, 4)), | |
345 | ConstantRange(APInt(16, 0xaae), APInt(16, 0xe))); | |
346 | EXPECT_EQ(One.add(APInt(16, 4)), | |
347 | ConstantRange(APInt(16, 0xe))); | |
348 | } | |
349 | ||
350 | TEST_F(ConstantRangeTest, Sub) { | |
351 | EXPECT_EQ(Full.sub(APInt(16, 4)), Full); | |
352 | EXPECT_EQ(Full.sub(Full), Full); | |
353 | EXPECT_EQ(Full.sub(Empty), Empty); | |
354 | EXPECT_EQ(Full.sub(One), Full); | |
355 | EXPECT_EQ(Full.sub(Some), Full); | |
356 | EXPECT_EQ(Full.sub(Wrap), Full); | |
357 | EXPECT_EQ(Empty.sub(Empty), Empty); | |
358 | EXPECT_EQ(Empty.sub(One), Empty); | |
359 | EXPECT_EQ(Empty.sub(Some), Empty); | |
360 | EXPECT_EQ(Empty.sub(Wrap), Empty); | |
361 | EXPECT_EQ(Empty.sub(APInt(16, 4)), Empty); | |
362 | EXPECT_EQ(Some.sub(APInt(16, 4)), | |
363 | ConstantRange(APInt(16, 0x6), APInt(16, 0xaa6))); | |
364 | EXPECT_EQ(Some.sub(Some), | |
365 | ConstantRange(APInt(16, 0xf561), APInt(16, 0xaa0))); | |
366 | EXPECT_EQ(Wrap.sub(APInt(16, 4)), | |
367 | ConstantRange(APInt(16, 0xaa6), APInt(16, 0x6))); | |
368 | EXPECT_EQ(One.sub(APInt(16, 4)), | |
369 | ConstantRange(APInt(16, 0x6))); | |
370 | } | |
371 | ||
372 | TEST_F(ConstantRangeTest, Multiply) { | |
373 | EXPECT_EQ(Full.multiply(Full), Full); | |
374 | EXPECT_EQ(Full.multiply(Empty), Empty); | |
375 | EXPECT_EQ(Full.multiply(One), Full); | |
376 | EXPECT_EQ(Full.multiply(Some), Full); | |
377 | EXPECT_EQ(Full.multiply(Wrap), Full); | |
378 | EXPECT_EQ(Empty.multiply(Empty), Empty); | |
379 | EXPECT_EQ(Empty.multiply(One), Empty); | |
380 | EXPECT_EQ(Empty.multiply(Some), Empty); | |
381 | EXPECT_EQ(Empty.multiply(Wrap), Empty); | |
382 | EXPECT_EQ(One.multiply(One), ConstantRange(APInt(16, 0xa*0xa), | |
383 | APInt(16, 0xa*0xa + 1))); | |
384 | EXPECT_EQ(One.multiply(Some), ConstantRange(APInt(16, 0xa*0xa), | |
385 | APInt(16, 0xa*0xaa9 + 1))); | |
386 | EXPECT_EQ(One.multiply(Wrap), Full); | |
387 | EXPECT_EQ(Some.multiply(Some), Full); | |
388 | EXPECT_EQ(Some.multiply(Wrap), Full); | |
389 | EXPECT_EQ(Wrap.multiply(Wrap), Full); | |
390 | ||
391 | ConstantRange Zero(APInt(16, 0)); | |
392 | EXPECT_EQ(Zero.multiply(Full), Zero); | |
393 | EXPECT_EQ(Zero.multiply(Some), Zero); | |
394 | EXPECT_EQ(Zero.multiply(Wrap), Zero); | |
395 | EXPECT_EQ(Full.multiply(Zero), Zero); | |
396 | EXPECT_EQ(Some.multiply(Zero), Zero); | |
397 | EXPECT_EQ(Wrap.multiply(Zero), Zero); | |
398 | ||
399 | // http://llvm.org/PR4545 | |
400 | EXPECT_EQ(ConstantRange(APInt(4, 1), APInt(4, 6)).multiply( | |
401 | ConstantRange(APInt(4, 6), APInt(4, 2))), | |
402 | ConstantRange(4, /*isFullSet=*/true)); | |
403 | } | |
404 | ||
405 | TEST_F(ConstantRangeTest, UMax) { | |
406 | EXPECT_EQ(Full.umax(Full), Full); | |
407 | EXPECT_EQ(Full.umax(Empty), Empty); | |
408 | EXPECT_EQ(Full.umax(Some), ConstantRange(APInt(16, 0xa), APInt(16, 0))); | |
409 | EXPECT_EQ(Full.umax(Wrap), Full); | |
410 | EXPECT_EQ(Full.umax(Some), ConstantRange(APInt(16, 0xa), APInt(16, 0))); | |
411 | EXPECT_EQ(Empty.umax(Empty), Empty); | |
412 | EXPECT_EQ(Empty.umax(Some), Empty); | |
413 | EXPECT_EQ(Empty.umax(Wrap), Empty); | |
414 | EXPECT_EQ(Empty.umax(One), Empty); | |
415 | EXPECT_EQ(Some.umax(Some), Some); | |
416 | EXPECT_EQ(Some.umax(Wrap), ConstantRange(APInt(16, 0xa), APInt(16, 0))); | |
417 | EXPECT_EQ(Some.umax(One), Some); | |
418 | // TODO: ConstantRange is currently over-conservative here. | |
419 | EXPECT_EQ(Wrap.umax(Wrap), Full); | |
420 | EXPECT_EQ(Wrap.umax(One), ConstantRange(APInt(16, 0xa), APInt(16, 0))); | |
421 | EXPECT_EQ(One.umax(One), One); | |
422 | } | |
423 | ||
424 | TEST_F(ConstantRangeTest, SMax) { | |
425 | EXPECT_EQ(Full.smax(Full), Full); | |
426 | EXPECT_EQ(Full.smax(Empty), Empty); | |
427 | EXPECT_EQ(Full.smax(Some), ConstantRange(APInt(16, 0xa), | |
428 | APInt::getSignedMinValue(16))); | |
429 | EXPECT_EQ(Full.smax(Wrap), Full); | |
430 | EXPECT_EQ(Full.smax(One), ConstantRange(APInt(16, 0xa), | |
431 | APInt::getSignedMinValue(16))); | |
432 | EXPECT_EQ(Empty.smax(Empty), Empty); | |
433 | EXPECT_EQ(Empty.smax(Some), Empty); | |
434 | EXPECT_EQ(Empty.smax(Wrap), Empty); | |
435 | EXPECT_EQ(Empty.smax(One), Empty); | |
436 | EXPECT_EQ(Some.smax(Some), Some); | |
437 | EXPECT_EQ(Some.smax(Wrap), ConstantRange(APInt(16, 0xa), | |
438 | APInt(16, (uint64_t)INT16_MIN))); | |
439 | EXPECT_EQ(Some.smax(One), Some); | |
440 | EXPECT_EQ(Wrap.smax(One), ConstantRange(APInt(16, 0xa), | |
441 | APInt(16, (uint64_t)INT16_MIN))); | |
442 | EXPECT_EQ(One.smax(One), One); | |
443 | } | |
444 | ||
445 | TEST_F(ConstantRangeTest, UDiv) { | |
446 | EXPECT_EQ(Full.udiv(Full), Full); | |
447 | EXPECT_EQ(Full.udiv(Empty), Empty); | |
448 | EXPECT_EQ(Full.udiv(One), ConstantRange(APInt(16, 0), | |
449 | APInt(16, 0xffff / 0xa + 1))); | |
450 | EXPECT_EQ(Full.udiv(Some), ConstantRange(APInt(16, 0), | |
451 | APInt(16, 0xffff / 0xa + 1))); | |
452 | EXPECT_EQ(Full.udiv(Wrap), Full); | |
453 | EXPECT_EQ(Empty.udiv(Empty), Empty); | |
454 | EXPECT_EQ(Empty.udiv(One), Empty); | |
455 | EXPECT_EQ(Empty.udiv(Some), Empty); | |
456 | EXPECT_EQ(Empty.udiv(Wrap), Empty); | |
457 | EXPECT_EQ(One.udiv(One), ConstantRange(APInt(16, 1))); | |
458 | EXPECT_EQ(One.udiv(Some), ConstantRange(APInt(16, 0), APInt(16, 2))); | |
459 | EXPECT_EQ(One.udiv(Wrap), ConstantRange(APInt(16, 0), APInt(16, 0xb))); | |
460 | EXPECT_EQ(Some.udiv(Some), ConstantRange(APInt(16, 0), APInt(16, 0x111))); | |
461 | EXPECT_EQ(Some.udiv(Wrap), ConstantRange(APInt(16, 0), APInt(16, 0xaaa))); | |
462 | EXPECT_EQ(Wrap.udiv(Wrap), Full); | |
463 | } | |
464 | ||
465 | TEST_F(ConstantRangeTest, Shl) { | |
466 | EXPECT_EQ(Full.shl(Full), Full); | |
467 | EXPECT_EQ(Full.shl(Empty), Empty); | |
468 | EXPECT_EQ(Full.shl(One), Full); // TODO: [0, (-1 << 0xa) + 1) | |
469 | EXPECT_EQ(Full.shl(Some), Full); // TODO: [0, (-1 << 0xa) + 1) | |
470 | EXPECT_EQ(Full.shl(Wrap), Full); | |
471 | EXPECT_EQ(Empty.shl(Empty), Empty); | |
472 | EXPECT_EQ(Empty.shl(One), Empty); | |
473 | EXPECT_EQ(Empty.shl(Some), Empty); | |
474 | EXPECT_EQ(Empty.shl(Wrap), Empty); | |
475 | EXPECT_EQ(One.shl(One), ConstantRange(APInt(16, 0xa << 0xa), | |
476 | APInt(16, (0xa << 0xa) + 1))); | |
477 | EXPECT_EQ(One.shl(Some), Full); // TODO: [0xa << 0xa, 0) | |
478 | EXPECT_EQ(One.shl(Wrap), Full); // TODO: [0xa, 0xa << 14 + 1) | |
479 | EXPECT_EQ(Some.shl(Some), Full); // TODO: [0xa << 0xa, 0xfc01) | |
480 | EXPECT_EQ(Some.shl(Wrap), Full); // TODO: [0xa, 0x7ff << 0x5 + 1) | |
481 | EXPECT_EQ(Wrap.shl(Wrap), Full); | |
482 | } | |
483 | ||
484 | TEST_F(ConstantRangeTest, Lshr) { | |
485 | EXPECT_EQ(Full.lshr(Full), Full); | |
486 | EXPECT_EQ(Full.lshr(Empty), Empty); | |
487 | EXPECT_EQ(Full.lshr(One), ConstantRange(APInt(16, 0), | |
488 | APInt(16, (0xffff >> 0xa) + 1))); | |
489 | EXPECT_EQ(Full.lshr(Some), ConstantRange(APInt(16, 0), | |
490 | APInt(16, (0xffff >> 0xa) + 1))); | |
491 | EXPECT_EQ(Full.lshr(Wrap), Full); | |
492 | EXPECT_EQ(Empty.lshr(Empty), Empty); | |
493 | EXPECT_EQ(Empty.lshr(One), Empty); | |
494 | EXPECT_EQ(Empty.lshr(Some), Empty); | |
495 | EXPECT_EQ(Empty.lshr(Wrap), Empty); | |
496 | EXPECT_EQ(One.lshr(One), ConstantRange(APInt(16, 0))); | |
497 | EXPECT_EQ(One.lshr(Some), ConstantRange(APInt(16, 0))); | |
498 | EXPECT_EQ(One.lshr(Wrap), ConstantRange(APInt(16, 0), APInt(16, 0xb))); | |
499 | EXPECT_EQ(Some.lshr(Some), ConstantRange(APInt(16, 0), | |
500 | APInt(16, (0xaaa >> 0xa) + 1))); | |
501 | EXPECT_EQ(Some.lshr(Wrap), ConstantRange(APInt(16, 0), APInt(16, 0xaaa))); | |
502 | EXPECT_EQ(Wrap.lshr(Wrap), Full); | |
503 | } | |
504 | ||
505 | TEST(ConstantRange, MakeICmpRegion) { | |
506 | // PR8250 | |
507 | ConstantRange SMax = ConstantRange(APInt::getSignedMaxValue(32)); | |
508 | EXPECT_TRUE(ConstantRange::makeICmpRegion(ICmpInst::ICMP_SGT, | |
509 | SMax).isEmptySet()); | |
510 | } | |
511 | ||
512 | } // anonymous namespace |