1 //===- llvm/unittest/ADT/APInt.cpp - APInt unit tests ---------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
11 #include "gtest/gtest.h"
12 #include "llvm/ADT/APInt.h"
13 #include "llvm/ADT/SmallString.h"
19 // Test that APInt shift left works when bitwidth > 64 and shiftamt == 0
20 TEST(APIntTest, ShiftLeftByZero) {
21 APInt One = APInt::getNullValue(65) + 1;
22 APInt Shl = One.shl(0);
27 TEST(APIntTest, i128_NegativeCount) {
28 APInt Minus3(128, static_cast<uint64_t>(-3), true);
29 EXPECT_EQ(126u, Minus3.countLeadingOnes());
30 EXPECT_EQ(-3, Minus3.getSExtValue());
32 APInt Minus1(128, static_cast<uint64_t>(-1), true);
33 EXPECT_EQ(0u, Minus1.countLeadingZeros());
34 EXPECT_EQ(128u, Minus1.countLeadingOnes());
35 EXPECT_EQ(128u, Minus1.getActiveBits());
36 EXPECT_EQ(0u, Minus1.countTrailingZeros());
37 EXPECT_EQ(128u, Minus1.countTrailingOnes());
38 EXPECT_EQ(128u, Minus1.countPopulation());
39 EXPECT_EQ(-1, Minus1.getSExtValue());
42 // XFAIL this test on FreeBSD where the system gcc-4.2.1 seems to miscompile it.
43 #if defined(__llvm__) || !defined(__FreeBSD__)
45 TEST(APIntTest, i33_Count) {
46 APInt i33minus2(33, static_cast<uint64_t>(-2), true);
47 EXPECT_EQ(0u, i33minus2.countLeadingZeros());
48 EXPECT_EQ(32u, i33minus2.countLeadingOnes());
49 EXPECT_EQ(33u, i33minus2.getActiveBits());
50 EXPECT_EQ(1u, i33minus2.countTrailingZeros());
51 EXPECT_EQ(32u, i33minus2.countPopulation());
52 EXPECT_EQ(-2, i33minus2.getSExtValue());
53 EXPECT_EQ(((uint64_t)-2)&((1ull<<33) -1), i33minus2.getZExtValue());
58 TEST(APIntTest, i65_Count) {
59 APInt i65minus(65, 0, true);
61 EXPECT_EQ(0u, i65minus.countLeadingZeros());
62 EXPECT_EQ(1u, i65minus.countLeadingOnes());
63 EXPECT_EQ(65u, i65minus.getActiveBits());
64 EXPECT_EQ(64u, i65minus.countTrailingZeros());
65 EXPECT_EQ(1u, i65minus.countPopulation());
68 TEST(APIntTest, i128_PositiveCount) {
69 APInt u128max = APInt::getAllOnesValue(128);
70 EXPECT_EQ(128u, u128max.countLeadingOnes());
71 EXPECT_EQ(0u, u128max.countLeadingZeros());
72 EXPECT_EQ(128u, u128max.getActiveBits());
73 EXPECT_EQ(0u, u128max.countTrailingZeros());
74 EXPECT_EQ(128u, u128max.countTrailingOnes());
75 EXPECT_EQ(128u, u128max.countPopulation());
77 APInt u64max(128, static_cast<uint64_t>(-1), false);
78 EXPECT_EQ(64u, u64max.countLeadingZeros());
79 EXPECT_EQ(0u, u64max.countLeadingOnes());
80 EXPECT_EQ(64u, u64max.getActiveBits());
81 EXPECT_EQ(0u, u64max.countTrailingZeros());
82 EXPECT_EQ(64u, u64max.countTrailingOnes());
83 EXPECT_EQ(64u, u64max.countPopulation());
84 EXPECT_EQ((uint64_t)~0ull, u64max.getZExtValue());
86 APInt zero(128, 0, true);
87 EXPECT_EQ(128u, zero.countLeadingZeros());
88 EXPECT_EQ(0u, zero.countLeadingOnes());
89 EXPECT_EQ(0u, zero.getActiveBits());
90 EXPECT_EQ(128u, zero.countTrailingZeros());
91 EXPECT_EQ(0u, zero.countTrailingOnes());
92 EXPECT_EQ(0u, zero.countPopulation());
93 EXPECT_EQ(0u, zero.getSExtValue());
94 EXPECT_EQ(0u, zero.getZExtValue());
96 APInt one(128, 1, true);
97 EXPECT_EQ(127u, one.countLeadingZeros());
98 EXPECT_EQ(0u, one.countLeadingOnes());
99 EXPECT_EQ(1u, one.getActiveBits());
100 EXPECT_EQ(0u, one.countTrailingZeros());
101 EXPECT_EQ(1u, one.countTrailingOnes());
102 EXPECT_EQ(1u, one.countPopulation());
103 EXPECT_EQ(1, one.getSExtValue());
104 EXPECT_EQ(1u, one.getZExtValue());
107 TEST(APIntTest, i1) {
108 const APInt neg_two(1, static_cast<uint64_t>(-2), true);
109 const APInt neg_one(1, static_cast<uint64_t>(-1), true);
110 const APInt zero(1, 0);
111 const APInt one(1, 1);
112 const APInt two(1, 2);
114 EXPECT_EQ(0, neg_two.getSExtValue());
115 EXPECT_EQ(-1, neg_one.getSExtValue());
116 EXPECT_EQ(1u, neg_one.getZExtValue());
117 EXPECT_EQ(0u, zero.getZExtValue());
118 EXPECT_EQ(-1, one.getSExtValue());
119 EXPECT_EQ(1u, one.getZExtValue());
120 EXPECT_EQ(0u, two.getZExtValue());
121 EXPECT_EQ(0, two.getSExtValue());
123 // Basic equalities for 1-bit values.
124 EXPECT_EQ(zero, two);
125 EXPECT_EQ(zero, neg_two);
126 EXPECT_EQ(one, neg_one);
127 EXPECT_EQ(two, neg_two);
130 EXPECT_EQ(two, one + one);
131 EXPECT_EQ(zero, neg_one + one);
132 EXPECT_EQ(neg_two, neg_one + neg_one);
135 EXPECT_EQ(neg_two, neg_one - one);
136 EXPECT_EQ(two, one - neg_one);
137 EXPECT_EQ(zero, one - one);
140 EXPECT_EQ(zero, one << one);
141 EXPECT_EQ(one, one << zero);
142 EXPECT_EQ(zero, one.shl(1));
143 EXPECT_EQ(one, one.shl(0));
144 EXPECT_EQ(zero, one.lshr(1));
145 EXPECT_EQ(zero, one.ashr(1));
148 EXPECT_EQ(one, one.rotl(0));
149 EXPECT_EQ(one, one.rotl(1));
150 EXPECT_EQ(one, one.rotr(0));
151 EXPECT_EQ(one, one.rotr(1));
154 EXPECT_EQ(neg_one, neg_one * one);
155 EXPECT_EQ(neg_one, one * neg_one);
156 EXPECT_EQ(one, neg_one * neg_one);
157 EXPECT_EQ(one, one * one);
160 EXPECT_EQ(neg_one, one.sdiv(neg_one));
161 EXPECT_EQ(neg_one, neg_one.sdiv(one));
162 EXPECT_EQ(one, neg_one.sdiv(neg_one));
163 EXPECT_EQ(one, one.sdiv(one));
165 EXPECT_EQ(neg_one, one.udiv(neg_one));
166 EXPECT_EQ(neg_one, neg_one.udiv(one));
167 EXPECT_EQ(one, neg_one.udiv(neg_one));
168 EXPECT_EQ(one, one.udiv(one));
171 EXPECT_EQ(zero, neg_one.srem(one));
172 EXPECT_EQ(zero, neg_one.urem(one));
173 EXPECT_EQ(zero, one.srem(neg_one));
176 TEST(APIntTest, fromString) {
177 EXPECT_EQ(APInt(32, 0), APInt(32, "0", 2));
178 EXPECT_EQ(APInt(32, 1), APInt(32, "1", 2));
179 EXPECT_EQ(APInt(32, 2), APInt(32, "10", 2));
180 EXPECT_EQ(APInt(32, 3), APInt(32, "11", 2));
181 EXPECT_EQ(APInt(32, 4), APInt(32, "100", 2));
183 EXPECT_EQ(APInt(32, 0), APInt(32, "+0", 2));
184 EXPECT_EQ(APInt(32, 1), APInt(32, "+1", 2));
185 EXPECT_EQ(APInt(32, 2), APInt(32, "+10", 2));
186 EXPECT_EQ(APInt(32, 3), APInt(32, "+11", 2));
187 EXPECT_EQ(APInt(32, 4), APInt(32, "+100", 2));
189 EXPECT_EQ(APInt(32, uint64_t(-0LL)), APInt(32, "-0", 2));
190 EXPECT_EQ(APInt(32, uint64_t(-1LL)), APInt(32, "-1", 2));
191 EXPECT_EQ(APInt(32, uint64_t(-2LL)), APInt(32, "-10", 2));
192 EXPECT_EQ(APInt(32, uint64_t(-3LL)), APInt(32, "-11", 2));
193 EXPECT_EQ(APInt(32, uint64_t(-4LL)), APInt(32, "-100", 2));
196 EXPECT_EQ(APInt(32, 0), APInt(32, "0", 8));
197 EXPECT_EQ(APInt(32, 1), APInt(32, "1", 8));
198 EXPECT_EQ(APInt(32, 7), APInt(32, "7", 8));
199 EXPECT_EQ(APInt(32, 8), APInt(32, "10", 8));
200 EXPECT_EQ(APInt(32, 15), APInt(32, "17", 8));
201 EXPECT_EQ(APInt(32, 16), APInt(32, "20", 8));
203 EXPECT_EQ(APInt(32, +0), APInt(32, "+0", 8));
204 EXPECT_EQ(APInt(32, +1), APInt(32, "+1", 8));
205 EXPECT_EQ(APInt(32, +7), APInt(32, "+7", 8));
206 EXPECT_EQ(APInt(32, +8), APInt(32, "+10", 8));
207 EXPECT_EQ(APInt(32, +15), APInt(32, "+17", 8));
208 EXPECT_EQ(APInt(32, +16), APInt(32, "+20", 8));
210 EXPECT_EQ(APInt(32, uint64_t(-0LL)), APInt(32, "-0", 8));
211 EXPECT_EQ(APInt(32, uint64_t(-1LL)), APInt(32, "-1", 8));
212 EXPECT_EQ(APInt(32, uint64_t(-7LL)), APInt(32, "-7", 8));
213 EXPECT_EQ(APInt(32, uint64_t(-8LL)), APInt(32, "-10", 8));
214 EXPECT_EQ(APInt(32, uint64_t(-15LL)), APInt(32, "-17", 8));
215 EXPECT_EQ(APInt(32, uint64_t(-16LL)), APInt(32, "-20", 8));
218 EXPECT_EQ(APInt(32, 0), APInt(32, "0", 10));
219 EXPECT_EQ(APInt(32, 1), APInt(32, "1", 10));
220 EXPECT_EQ(APInt(32, 9), APInt(32, "9", 10));
221 EXPECT_EQ(APInt(32, 10), APInt(32, "10", 10));
222 EXPECT_EQ(APInt(32, 19), APInt(32, "19", 10));
223 EXPECT_EQ(APInt(32, 20), APInt(32, "20", 10));
225 EXPECT_EQ(APInt(32, uint64_t(-0LL)), APInt(32, "-0", 10));
226 EXPECT_EQ(APInt(32, uint64_t(-1LL)), APInt(32, "-1", 10));
227 EXPECT_EQ(APInt(32, uint64_t(-9LL)), APInt(32, "-9", 10));
228 EXPECT_EQ(APInt(32, uint64_t(-10LL)), APInt(32, "-10", 10));
229 EXPECT_EQ(APInt(32, uint64_t(-19LL)), APInt(32, "-19", 10));
230 EXPECT_EQ(APInt(32, uint64_t(-20LL)), APInt(32, "-20", 10));
233 EXPECT_EQ(APInt(32, 0), APInt(32, "0", 16));
234 EXPECT_EQ(APInt(32, 1), APInt(32, "1", 16));
235 EXPECT_EQ(APInt(32, 15), APInt(32, "F", 16));
236 EXPECT_EQ(APInt(32, 16), APInt(32, "10", 16));
237 EXPECT_EQ(APInt(32, 31), APInt(32, "1F", 16));
238 EXPECT_EQ(APInt(32, 32), APInt(32, "20", 16));
240 EXPECT_EQ(APInt(32, uint64_t(-0LL)), APInt(32, "-0", 16));
241 EXPECT_EQ(APInt(32, uint64_t(-1LL)), APInt(32, "-1", 16));
242 EXPECT_EQ(APInt(32, uint64_t(-15LL)), APInt(32, "-F", 16));
243 EXPECT_EQ(APInt(32, uint64_t(-16LL)), APInt(32, "-10", 16));
244 EXPECT_EQ(APInt(32, uint64_t(-31LL)), APInt(32, "-1F", 16));
245 EXPECT_EQ(APInt(32, uint64_t(-32LL)), APInt(32, "-20", 16));
247 EXPECT_EQ(APInt(32, 0), APInt(32, "0", 36));
248 EXPECT_EQ(APInt(32, 1), APInt(32, "1", 36));
249 EXPECT_EQ(APInt(32, 35), APInt(32, "Z", 36));
250 EXPECT_EQ(APInt(32, 36), APInt(32, "10", 36));
251 EXPECT_EQ(APInt(32, 71), APInt(32, "1Z", 36));
252 EXPECT_EQ(APInt(32, 72), APInt(32, "20", 36));
254 EXPECT_EQ(APInt(32, uint64_t(-0LL)), APInt(32, "-0", 36));
255 EXPECT_EQ(APInt(32, uint64_t(-1LL)), APInt(32, "-1", 36));
256 EXPECT_EQ(APInt(32, uint64_t(-35LL)), APInt(32, "-Z", 36));
257 EXPECT_EQ(APInt(32, uint64_t(-36LL)), APInt(32, "-10", 36));
258 EXPECT_EQ(APInt(32, uint64_t(-71LL)), APInt(32, "-1Z", 36));
259 EXPECT_EQ(APInt(32, uint64_t(-72LL)), APInt(32, "-20", 36));
262 TEST(APIntTest, FromArray) {
263 EXPECT_EQ(APInt(32, uint64_t(1)), APInt(32, ArrayRef<uint64_t>(1)));
266 TEST(APIntTest, StringBitsNeeded2) {
267 EXPECT_EQ(1U, APInt::getBitsNeeded( "0", 2));
268 EXPECT_EQ(1U, APInt::getBitsNeeded( "1", 2));
269 EXPECT_EQ(2U, APInt::getBitsNeeded( "10", 2));
270 EXPECT_EQ(2U, APInt::getBitsNeeded( "11", 2));
271 EXPECT_EQ(3U, APInt::getBitsNeeded("100", 2));
273 EXPECT_EQ(1U, APInt::getBitsNeeded( "+0", 2));
274 EXPECT_EQ(1U, APInt::getBitsNeeded( "+1", 2));
275 EXPECT_EQ(2U, APInt::getBitsNeeded( "+10", 2));
276 EXPECT_EQ(2U, APInt::getBitsNeeded( "+11", 2));
277 EXPECT_EQ(3U, APInt::getBitsNeeded("+100", 2));
279 EXPECT_EQ(2U, APInt::getBitsNeeded( "-0", 2));
280 EXPECT_EQ(2U, APInt::getBitsNeeded( "-1", 2));
281 EXPECT_EQ(3U, APInt::getBitsNeeded( "-10", 2));
282 EXPECT_EQ(3U, APInt::getBitsNeeded( "-11", 2));
283 EXPECT_EQ(4U, APInt::getBitsNeeded("-100", 2));
286 TEST(APIntTest, StringBitsNeeded8) {
287 EXPECT_EQ(3U, APInt::getBitsNeeded( "0", 8));
288 EXPECT_EQ(3U, APInt::getBitsNeeded( "7", 8));
289 EXPECT_EQ(6U, APInt::getBitsNeeded("10", 8));
290 EXPECT_EQ(6U, APInt::getBitsNeeded("17", 8));
291 EXPECT_EQ(6U, APInt::getBitsNeeded("20", 8));
293 EXPECT_EQ(3U, APInt::getBitsNeeded( "+0", 8));
294 EXPECT_EQ(3U, APInt::getBitsNeeded( "+7", 8));
295 EXPECT_EQ(6U, APInt::getBitsNeeded("+10", 8));
296 EXPECT_EQ(6U, APInt::getBitsNeeded("+17", 8));
297 EXPECT_EQ(6U, APInt::getBitsNeeded("+20", 8));
299 EXPECT_EQ(4U, APInt::getBitsNeeded( "-0", 8));
300 EXPECT_EQ(4U, APInt::getBitsNeeded( "-7", 8));
301 EXPECT_EQ(7U, APInt::getBitsNeeded("-10", 8));
302 EXPECT_EQ(7U, APInt::getBitsNeeded("-17", 8));
303 EXPECT_EQ(7U, APInt::getBitsNeeded("-20", 8));
306 TEST(APIntTest, StringBitsNeeded10) {
307 EXPECT_EQ(1U, APInt::getBitsNeeded( "0", 10));
308 EXPECT_EQ(2U, APInt::getBitsNeeded( "3", 10));
309 EXPECT_EQ(4U, APInt::getBitsNeeded( "9", 10));
310 EXPECT_EQ(4U, APInt::getBitsNeeded("10", 10));
311 EXPECT_EQ(5U, APInt::getBitsNeeded("19", 10));
312 EXPECT_EQ(5U, APInt::getBitsNeeded("20", 10));
314 EXPECT_EQ(1U, APInt::getBitsNeeded( "+0", 10));
315 EXPECT_EQ(4U, APInt::getBitsNeeded( "+9", 10));
316 EXPECT_EQ(4U, APInt::getBitsNeeded("+10", 10));
317 EXPECT_EQ(5U, APInt::getBitsNeeded("+19", 10));
318 EXPECT_EQ(5U, APInt::getBitsNeeded("+20", 10));
320 EXPECT_EQ(2U, APInt::getBitsNeeded( "-0", 10));
321 EXPECT_EQ(5U, APInt::getBitsNeeded( "-9", 10));
322 EXPECT_EQ(5U, APInt::getBitsNeeded("-10", 10));
323 EXPECT_EQ(6U, APInt::getBitsNeeded("-19", 10));
324 EXPECT_EQ(6U, APInt::getBitsNeeded("-20", 10));
327 TEST(APIntTest, StringBitsNeeded16) {
328 EXPECT_EQ(4U, APInt::getBitsNeeded( "0", 16));
329 EXPECT_EQ(4U, APInt::getBitsNeeded( "F", 16));
330 EXPECT_EQ(8U, APInt::getBitsNeeded("10", 16));
331 EXPECT_EQ(8U, APInt::getBitsNeeded("1F", 16));
332 EXPECT_EQ(8U, APInt::getBitsNeeded("20", 16));
334 EXPECT_EQ(4U, APInt::getBitsNeeded( "+0", 16));
335 EXPECT_EQ(4U, APInt::getBitsNeeded( "+F", 16));
336 EXPECT_EQ(8U, APInt::getBitsNeeded("+10", 16));
337 EXPECT_EQ(8U, APInt::getBitsNeeded("+1F", 16));
338 EXPECT_EQ(8U, APInt::getBitsNeeded("+20", 16));
340 EXPECT_EQ(5U, APInt::getBitsNeeded( "-0", 16));
341 EXPECT_EQ(5U, APInt::getBitsNeeded( "-F", 16));
342 EXPECT_EQ(9U, APInt::getBitsNeeded("-10", 16));
343 EXPECT_EQ(9U, APInt::getBitsNeeded("-1F", 16));
344 EXPECT_EQ(9U, APInt::getBitsNeeded("-20", 16));
347 TEST(APIntTest, toString) {
351 APInt(8, 0).toString(S, 2, true, true);
352 EXPECT_EQ(S.str().str(), "0b0");
354 APInt(8, 0).toString(S, 8, true, true);
355 EXPECT_EQ(S.str().str(), "00");
357 APInt(8, 0).toString(S, 10, true, true);
358 EXPECT_EQ(S.str().str(), "0");
360 APInt(8, 0).toString(S, 16, true, true);
361 EXPECT_EQ(S.str().str(), "0x0");
363 APInt(8, 0).toString(S, 36, true, false);
364 EXPECT_EQ(S.str().str(), "0");
368 APInt(8, 255, isSigned).toString(S, 2, isSigned, true);
369 EXPECT_EQ(S.str().str(), "0b11111111");
371 APInt(8, 255, isSigned).toString(S, 8, isSigned, true);
372 EXPECT_EQ(S.str().str(), "0377");
374 APInt(8, 255, isSigned).toString(S, 10, isSigned, true);
375 EXPECT_EQ(S.str().str(), "255");
377 APInt(8, 255, isSigned).toString(S, 16, isSigned, true);
378 EXPECT_EQ(S.str().str(), "0xFF");
380 APInt(8, 255, isSigned).toString(S, 36, isSigned, false);
381 EXPECT_EQ(S.str().str(), "73");
385 APInt(8, 255, isSigned).toString(S, 2, isSigned, true);
386 EXPECT_EQ(S.str().str(), "-0b1");
388 APInt(8, 255, isSigned).toString(S, 8, isSigned, true);
389 EXPECT_EQ(S.str().str(), "-01");
391 APInt(8, 255, isSigned).toString(S, 10, isSigned, true);
392 EXPECT_EQ(S.str().str(), "-1");
394 APInt(8, 255, isSigned).toString(S, 16, isSigned, true);
395 EXPECT_EQ(S.str().str(), "-0x1");
397 APInt(8, 255, isSigned).toString(S, 36, isSigned, false);
398 EXPECT_EQ(S.str().str(), "-1");
402 TEST(APIntTest, Log2) {
403 EXPECT_EQ(APInt(15, 7).logBase2(), 2U);
404 EXPECT_EQ(APInt(15, 7).ceilLogBase2(), 3U);
405 EXPECT_EQ(APInt(15, 7).exactLogBase2(), -1);
406 EXPECT_EQ(APInt(15, 8).logBase2(), 3U);
407 EXPECT_EQ(APInt(15, 8).ceilLogBase2(), 3U);
408 EXPECT_EQ(APInt(15, 8).exactLogBase2(), 3);
409 EXPECT_EQ(APInt(15, 9).logBase2(), 3U);
410 EXPECT_EQ(APInt(15, 9).ceilLogBase2(), 4U);
411 EXPECT_EQ(APInt(15, 9).exactLogBase2(), -1);
414 TEST(APIntTest, magic) {
415 EXPECT_EQ(APInt(32, 3).magic().m, APInt(32, "55555556", 16));
416 EXPECT_EQ(APInt(32, 3).magic().s, 0U);
417 EXPECT_EQ(APInt(32, 5).magic().m, APInt(32, "66666667", 16));
418 EXPECT_EQ(APInt(32, 5).magic().s, 1U);
419 EXPECT_EQ(APInt(32, 7).magic().m, APInt(32, "92492493", 16));
420 EXPECT_EQ(APInt(32, 7).magic().s, 2U);
423 TEST(APIntTest, magicu) {
424 EXPECT_EQ(APInt(32, 3).magicu().m, APInt(32, "AAAAAAAB", 16));
425 EXPECT_EQ(APInt(32, 3).magicu().s, 1U);
426 EXPECT_EQ(APInt(32, 5).magicu().m, APInt(32, "CCCCCCCD", 16));
427 EXPECT_EQ(APInt(32, 5).magicu().s, 2U);
428 EXPECT_EQ(APInt(32, 7).magicu().m, APInt(32, "24924925", 16));
429 EXPECT_EQ(APInt(32, 7).magicu().s, 3U);
430 EXPECT_EQ(APInt(64, 25).magicu(1).m, APInt(64, "A3D70A3D70A3D70B", 16));
431 EXPECT_EQ(APInt(64, 25).magicu(1).s, 4U);
434 #ifdef GTEST_HAS_DEATH_TEST
436 TEST(APIntTest, StringDeath) {
437 EXPECT_DEATH(APInt(0, "", 0), "Bitwidth too small");
438 EXPECT_DEATH(APInt(32, "", 0), "Invalid string length");
439 EXPECT_DEATH(APInt(32, "0", 0), "Radix should be 2, 8, 10, 16, or 36!");
440 EXPECT_DEATH(APInt(32, "", 10), "Invalid string length");
441 EXPECT_DEATH(APInt(32, "-", 10), "String is only a sign, needs a value.");
442 EXPECT_DEATH(APInt(1, "1234", 10), "Insufficient bit width");
443 EXPECT_DEATH(APInt(32, "\0", 10), "Invalid string length");
444 EXPECT_DEATH(APInt(32, StringRef("1\02", 3), 10), "Invalid character in digit string");
445 EXPECT_DEATH(APInt(32, "1L", 10), "Invalid character in digit string");
450 TEST(APIntTest, mul_clear) {
451 APInt ValA(65, -1ULL);
456 EXPECT_EQ(ValA.toString(10, false), ValC.toString(10, false));
459 TEST(APIntTest, Rotate) {
460 EXPECT_EQ(APInt(8, 1), APInt(8, 1).rotl(0));
461 EXPECT_EQ(APInt(8, 2), APInt(8, 1).rotl(1));
462 EXPECT_EQ(APInt(8, 4), APInt(8, 1).rotl(2));
463 EXPECT_EQ(APInt(8, 16), APInt(8, 1).rotl(4));
464 EXPECT_EQ(APInt(8, 1), APInt(8, 1).rotl(8));
466 EXPECT_EQ(APInt(8, 16), APInt(8, 16).rotl(0));
467 EXPECT_EQ(APInt(8, 32), APInt(8, 16).rotl(1));
468 EXPECT_EQ(APInt(8, 64), APInt(8, 16).rotl(2));
469 EXPECT_EQ(APInt(8, 1), APInt(8, 16).rotl(4));
470 EXPECT_EQ(APInt(8, 16), APInt(8, 16).rotl(8));
472 EXPECT_EQ(APInt(8, 16), APInt(8, 16).rotr(0));
473 EXPECT_EQ(APInt(8, 8), APInt(8, 16).rotr(1));
474 EXPECT_EQ(APInt(8, 4), APInt(8, 16).rotr(2));
475 EXPECT_EQ(APInt(8, 1), APInt(8, 16).rotr(4));
476 EXPECT_EQ(APInt(8, 16), APInt(8, 16).rotr(8));
478 EXPECT_EQ(APInt(8, 1), APInt(8, 1).rotr(0));
479 EXPECT_EQ(APInt(8, 128), APInt(8, 1).rotr(1));
480 EXPECT_EQ(APInt(8, 64), APInt(8, 1).rotr(2));
481 EXPECT_EQ(APInt(8, 16), APInt(8, 1).rotr(4));
482 EXPECT_EQ(APInt(8, 1), APInt(8, 1).rotr(8));