| //===- llvm/unittest/ADT/APInt.cpp - APInt unit tests ---------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "llvm/ADT/APInt.h" |
| #include "llvm/ADT/SmallString.h" |
| #include "gtest/gtest.h" |
| #include <array> |
| #include <ostream> |
| |
| using namespace llvm; |
| |
| namespace { |
| |
| TEST(APIntTest, ValueInit) { |
| APInt Zero = APInt(); |
| EXPECT_TRUE(!Zero); |
| EXPECT_TRUE(!Zero.zext(64)); |
| EXPECT_TRUE(!Zero.sext(64)); |
| } |
| |
| // Test that APInt shift left works when bitwidth > 64 and shiftamt == 0 |
| TEST(APIntTest, ShiftLeftByZero) { |
| APInt One = APInt::getNullValue(65) + 1; |
| APInt Shl = One.shl(0); |
| EXPECT_TRUE(Shl[0]); |
| EXPECT_FALSE(Shl[1]); |
| } |
| |
| TEST(APIntTest, i128_NegativeCount) { |
| APInt Minus3(128, static_cast<uint64_t>(-3), true); |
| EXPECT_EQ(126u, Minus3.countLeadingOnes()); |
| EXPECT_EQ(-3, Minus3.getSExtValue()); |
| |
| APInt Minus1(128, static_cast<uint64_t>(-1), true); |
| EXPECT_EQ(0u, Minus1.countLeadingZeros()); |
| EXPECT_EQ(128u, Minus1.countLeadingOnes()); |
| EXPECT_EQ(128u, Minus1.getActiveBits()); |
| EXPECT_EQ(0u, Minus1.countTrailingZeros()); |
| EXPECT_EQ(128u, Minus1.countTrailingOnes()); |
| EXPECT_EQ(128u, Minus1.countPopulation()); |
| EXPECT_EQ(-1, Minus1.getSExtValue()); |
| } |
| |
| // XFAIL this test on FreeBSD where the system gcc-4.2.1 seems to miscompile it. |
| #if defined(__llvm__) || !defined(__FreeBSD__) |
| |
| TEST(APIntTest, i33_Count) { |
| APInt i33minus2(33, static_cast<uint64_t>(-2), true); |
| EXPECT_EQ(0u, i33minus2.countLeadingZeros()); |
| EXPECT_EQ(32u, i33minus2.countLeadingOnes()); |
| EXPECT_EQ(33u, i33minus2.getActiveBits()); |
| EXPECT_EQ(1u, i33minus2.countTrailingZeros()); |
| EXPECT_EQ(32u, i33minus2.countPopulation()); |
| EXPECT_EQ(-2, i33minus2.getSExtValue()); |
| EXPECT_EQ(((uint64_t)-2)&((1ull<<33) -1), i33minus2.getZExtValue()); |
| } |
| |
| #endif |
| |
| TEST(APIntTest, i65_Count) { |
| APInt i65(65, 0, true); |
| EXPECT_EQ(65u, i65.countLeadingZeros()); |
| EXPECT_EQ(0u, i65.countLeadingOnes()); |
| EXPECT_EQ(0u, i65.getActiveBits()); |
| EXPECT_EQ(1u, i65.getActiveWords()); |
| EXPECT_EQ(65u, i65.countTrailingZeros()); |
| EXPECT_EQ(0u, i65.countPopulation()); |
| |
| APInt i65minus(65, 0, true); |
| i65minus.setBit(64); |
| EXPECT_EQ(0u, i65minus.countLeadingZeros()); |
| EXPECT_EQ(1u, i65minus.countLeadingOnes()); |
| EXPECT_EQ(65u, i65minus.getActiveBits()); |
| EXPECT_EQ(64u, i65minus.countTrailingZeros()); |
| EXPECT_EQ(1u, i65minus.countPopulation()); |
| } |
| |
| TEST(APIntTest, i128_PositiveCount) { |
| APInt u128max = APInt::getAllOnesValue(128); |
| EXPECT_EQ(128u, u128max.countLeadingOnes()); |
| EXPECT_EQ(0u, u128max.countLeadingZeros()); |
| EXPECT_EQ(128u, u128max.getActiveBits()); |
| EXPECT_EQ(0u, u128max.countTrailingZeros()); |
| EXPECT_EQ(128u, u128max.countTrailingOnes()); |
| EXPECT_EQ(128u, u128max.countPopulation()); |
| |
| APInt u64max(128, static_cast<uint64_t>(-1), false); |
| EXPECT_EQ(64u, u64max.countLeadingZeros()); |
| EXPECT_EQ(0u, u64max.countLeadingOnes()); |
| EXPECT_EQ(64u, u64max.getActiveBits()); |
| EXPECT_EQ(0u, u64max.countTrailingZeros()); |
| EXPECT_EQ(64u, u64max.countTrailingOnes()); |
| EXPECT_EQ(64u, u64max.countPopulation()); |
| EXPECT_EQ((uint64_t)~0ull, u64max.getZExtValue()); |
| |
| APInt zero(128, 0, true); |
| EXPECT_EQ(128u, zero.countLeadingZeros()); |
| EXPECT_EQ(0u, zero.countLeadingOnes()); |
| EXPECT_EQ(0u, zero.getActiveBits()); |
| EXPECT_EQ(128u, zero.countTrailingZeros()); |
| EXPECT_EQ(0u, zero.countTrailingOnes()); |
| EXPECT_EQ(0u, zero.countPopulation()); |
| EXPECT_EQ(0u, zero.getSExtValue()); |
| EXPECT_EQ(0u, zero.getZExtValue()); |
| |
| APInt one(128, 1, true); |
| EXPECT_EQ(127u, one.countLeadingZeros()); |
| EXPECT_EQ(0u, one.countLeadingOnes()); |
| EXPECT_EQ(1u, one.getActiveBits()); |
| EXPECT_EQ(0u, one.countTrailingZeros()); |
| EXPECT_EQ(1u, one.countTrailingOnes()); |
| EXPECT_EQ(1u, one.countPopulation()); |
| EXPECT_EQ(1, one.getSExtValue()); |
| EXPECT_EQ(1u, one.getZExtValue()); |
| } |
| |
| TEST(APIntTest, i1) { |
| const APInt neg_two(1, static_cast<uint64_t>(-2), true); |
| const APInt neg_one(1, static_cast<uint64_t>(-1), true); |
| const APInt zero(1, 0); |
| const APInt one(1, 1); |
| const APInt two(1, 2); |
| |
| EXPECT_EQ(0, neg_two.getSExtValue()); |
| EXPECT_EQ(-1, neg_one.getSExtValue()); |
| EXPECT_EQ(1u, neg_one.getZExtValue()); |
| EXPECT_EQ(0u, zero.getZExtValue()); |
| EXPECT_EQ(-1, one.getSExtValue()); |
| EXPECT_EQ(1u, one.getZExtValue()); |
| EXPECT_EQ(0u, two.getZExtValue()); |
| EXPECT_EQ(0, two.getSExtValue()); |
| |
| // Basic equalities for 1-bit values. |
| EXPECT_EQ(zero, two); |
| EXPECT_EQ(zero, neg_two); |
| EXPECT_EQ(one, neg_one); |
| EXPECT_EQ(two, neg_two); |
| |
| // Min/max signed values. |
| EXPECT_TRUE(zero.isMaxSignedValue()); |
| EXPECT_FALSE(one.isMaxSignedValue()); |
| EXPECT_FALSE(zero.isMinSignedValue()); |
| EXPECT_TRUE(one.isMinSignedValue()); |
| |
| // Additions. |
| EXPECT_EQ(two, one + one); |
| EXPECT_EQ(zero, neg_one + one); |
| EXPECT_EQ(neg_two, neg_one + neg_one); |
| |
| // Subtractions. |
| EXPECT_EQ(neg_two, neg_one - one); |
| EXPECT_EQ(two, one - neg_one); |
| EXPECT_EQ(zero, one - one); |
| |
| // Shifts. |
| EXPECT_EQ(zero, one << one); |
| EXPECT_EQ(one, one << zero); |
| EXPECT_EQ(zero, one.shl(1)); |
| EXPECT_EQ(one, one.shl(0)); |
| EXPECT_EQ(zero, one.lshr(1)); |
| EXPECT_EQ(zero, one.ashr(1)); |
| |
| // Rotates. |
| EXPECT_EQ(one, one.rotl(0)); |
| EXPECT_EQ(one, one.rotl(1)); |
| EXPECT_EQ(one, one.rotr(0)); |
| EXPECT_EQ(one, one.rotr(1)); |
| |
| // Multiplies. |
| EXPECT_EQ(neg_one, neg_one * one); |
| EXPECT_EQ(neg_one, one * neg_one); |
| EXPECT_EQ(one, neg_one * neg_one); |
| EXPECT_EQ(one, one * one); |
| |
| // Divides. |
| EXPECT_EQ(neg_one, one.sdiv(neg_one)); |
| EXPECT_EQ(neg_one, neg_one.sdiv(one)); |
| EXPECT_EQ(one, neg_one.sdiv(neg_one)); |
| EXPECT_EQ(one, one.sdiv(one)); |
| |
| EXPECT_EQ(neg_one, one.udiv(neg_one)); |
| EXPECT_EQ(neg_one, neg_one.udiv(one)); |
| EXPECT_EQ(one, neg_one.udiv(neg_one)); |
| EXPECT_EQ(one, one.udiv(one)); |
| |
| // Remainders. |
| EXPECT_EQ(zero, neg_one.srem(one)); |
| EXPECT_EQ(zero, neg_one.urem(one)); |
| EXPECT_EQ(zero, one.srem(neg_one)); |
| |
| // sdivrem |
| { |
| APInt q(8, 0); |
| APInt r(8, 0); |
| APInt one(8, 1); |
| APInt two(8, 2); |
| APInt nine(8, 9); |
| APInt four(8, 4); |
| |
| EXPECT_EQ(nine.srem(two), one); |
| EXPECT_EQ(nine.srem(-two), one); |
| EXPECT_EQ((-nine).srem(two), -one); |
| EXPECT_EQ((-nine).srem(-two), -one); |
| |
| APInt::sdivrem(nine, two, q, r); |
| EXPECT_EQ(four, q); |
| EXPECT_EQ(one, r); |
| APInt::sdivrem(-nine, two, q, r); |
| EXPECT_EQ(-four, q); |
| EXPECT_EQ(-one, r); |
| APInt::sdivrem(nine, -two, q, r); |
| EXPECT_EQ(-four, q); |
| EXPECT_EQ(one, r); |
| APInt::sdivrem(-nine, -two, q, r); |
| EXPECT_EQ(four, q); |
| EXPECT_EQ(-one, r); |
| } |
| } |
| |
| TEST(APIntTest, compare) { |
| std::array<APInt, 5> testVals{{ |
| APInt{16, 2}, |
| APInt{16, 1}, |
| APInt{16, 0}, |
| APInt{16, (uint64_t)-1, true}, |
| APInt{16, (uint64_t)-2, true}, |
| }}; |
| |
| for (auto &arg1 : testVals) |
| for (auto &arg2 : testVals) { |
| auto uv1 = arg1.getZExtValue(); |
| auto uv2 = arg2.getZExtValue(); |
| auto sv1 = arg1.getSExtValue(); |
| auto sv2 = arg2.getSExtValue(); |
| |
| EXPECT_EQ(uv1 < uv2, arg1.ult(arg2)); |
| EXPECT_EQ(uv1 <= uv2, arg1.ule(arg2)); |
| EXPECT_EQ(uv1 > uv2, arg1.ugt(arg2)); |
| EXPECT_EQ(uv1 >= uv2, arg1.uge(arg2)); |
| |
| EXPECT_EQ(sv1 < sv2, arg1.slt(arg2)); |
| EXPECT_EQ(sv1 <= sv2, arg1.sle(arg2)); |
| EXPECT_EQ(sv1 > sv2, arg1.sgt(arg2)); |
| EXPECT_EQ(sv1 >= sv2, arg1.sge(arg2)); |
| |
| EXPECT_EQ(uv1 < uv2, arg1.ult(uv2)); |
| EXPECT_EQ(uv1 <= uv2, arg1.ule(uv2)); |
| EXPECT_EQ(uv1 > uv2, arg1.ugt(uv2)); |
| EXPECT_EQ(uv1 >= uv2, arg1.uge(uv2)); |
| |
| EXPECT_EQ(sv1 < sv2, arg1.slt(sv2)); |
| EXPECT_EQ(sv1 <= sv2, arg1.sle(sv2)); |
| EXPECT_EQ(sv1 > sv2, arg1.sgt(sv2)); |
| EXPECT_EQ(sv1 >= sv2, arg1.sge(sv2)); |
| } |
| } |
| |
| TEST(APIntTest, compareWithRawIntegers) { |
| EXPECT_TRUE(!APInt(8, 1).uge(256)); |
| EXPECT_TRUE(!APInt(8, 1).ugt(256)); |
| EXPECT_TRUE( APInt(8, 1).ule(256)); |
| EXPECT_TRUE( APInt(8, 1).ult(256)); |
| EXPECT_TRUE(!APInt(8, 1).sge(256)); |
| EXPECT_TRUE(!APInt(8, 1).sgt(256)); |
| EXPECT_TRUE( APInt(8, 1).sle(256)); |
| EXPECT_TRUE( APInt(8, 1).slt(256)); |
| EXPECT_TRUE(!(APInt(8, 0) == 256)); |
| EXPECT_TRUE( APInt(8, 0) != 256); |
| EXPECT_TRUE(!(APInt(8, 1) == 256)); |
| EXPECT_TRUE( APInt(8, 1) != 256); |
| |
| auto uint64max = UINT64_MAX; |
| auto int64max = INT64_MAX; |
| auto int64min = INT64_MIN; |
| |
| auto u64 = APInt{128, uint64max}; |
| auto s64 = APInt{128, static_cast<uint64_t>(int64max), true}; |
| auto big = u64 + 1; |
| |
| EXPECT_TRUE( u64.uge(uint64max)); |
| EXPECT_TRUE(!u64.ugt(uint64max)); |
| EXPECT_TRUE( u64.ule(uint64max)); |
| EXPECT_TRUE(!u64.ult(uint64max)); |
| EXPECT_TRUE( u64.sge(int64max)); |
| EXPECT_TRUE( u64.sgt(int64max)); |
| EXPECT_TRUE(!u64.sle(int64max)); |
| EXPECT_TRUE(!u64.slt(int64max)); |
| EXPECT_TRUE( u64.sge(int64min)); |
| EXPECT_TRUE( u64.sgt(int64min)); |
| EXPECT_TRUE(!u64.sle(int64min)); |
| EXPECT_TRUE(!u64.slt(int64min)); |
| |
| EXPECT_TRUE(u64 == uint64max); |
| EXPECT_TRUE(u64 != int64max); |
| EXPECT_TRUE(u64 != int64min); |
| |
| EXPECT_TRUE(!s64.uge(uint64max)); |
| EXPECT_TRUE(!s64.ugt(uint64max)); |
| EXPECT_TRUE( s64.ule(uint64max)); |
| EXPECT_TRUE( s64.ult(uint64max)); |
| EXPECT_TRUE( s64.sge(int64max)); |
| EXPECT_TRUE(!s64.sgt(int64max)); |
| EXPECT_TRUE( s64.sle(int64max)); |
| EXPECT_TRUE(!s64.slt(int64max)); |
| EXPECT_TRUE( s64.sge(int64min)); |
| EXPECT_TRUE( s64.sgt(int64min)); |
| EXPECT_TRUE(!s64.sle(int64min)); |
| EXPECT_TRUE(!s64.slt(int64min)); |
| |
| EXPECT_TRUE(s64 != uint64max); |
| EXPECT_TRUE(s64 == int64max); |
| EXPECT_TRUE(s64 != int64min); |
| |
| EXPECT_TRUE( big.uge(uint64max)); |
| EXPECT_TRUE( big.ugt(uint64max)); |
| EXPECT_TRUE(!big.ule(uint64max)); |
| EXPECT_TRUE(!big.ult(uint64max)); |
| EXPECT_TRUE( big.sge(int64max)); |
| EXPECT_TRUE( big.sgt(int64max)); |
| EXPECT_TRUE(!big.sle(int64max)); |
| EXPECT_TRUE(!big.slt(int64max)); |
| EXPECT_TRUE( big.sge(int64min)); |
| EXPECT_TRUE( big.sgt(int64min)); |
| EXPECT_TRUE(!big.sle(int64min)); |
| EXPECT_TRUE(!big.slt(int64min)); |
| |
| EXPECT_TRUE(big != uint64max); |
| EXPECT_TRUE(big != int64max); |
| EXPECT_TRUE(big != int64min); |
| } |
| |
| TEST(APIntTest, compareWithInt64Min) { |
| int64_t edge = INT64_MIN; |
| int64_t edgeP1 = edge + 1; |
| int64_t edgeM1 = INT64_MAX; |
| auto a = APInt{64, static_cast<uint64_t>(edge), true}; |
| |
| EXPECT_TRUE(!a.slt(edge)); |
| EXPECT_TRUE( a.sle(edge)); |
| EXPECT_TRUE(!a.sgt(edge)); |
| EXPECT_TRUE( a.sge(edge)); |
| EXPECT_TRUE( a.slt(edgeP1)); |
| EXPECT_TRUE( a.sle(edgeP1)); |
| EXPECT_TRUE(!a.sgt(edgeP1)); |
| EXPECT_TRUE(!a.sge(edgeP1)); |
| EXPECT_TRUE( a.slt(edgeM1)); |
| EXPECT_TRUE( a.sle(edgeM1)); |
| EXPECT_TRUE(!a.sgt(edgeM1)); |
| EXPECT_TRUE(!a.sge(edgeM1)); |
| } |
| |
| TEST(APIntTest, compareWithHalfInt64Max) { |
| uint64_t edge = 0x4000000000000000; |
| uint64_t edgeP1 = edge + 1; |
| uint64_t edgeM1 = edge - 1; |
| auto a = APInt{64, edge}; |
| |
| EXPECT_TRUE(!a.ult(edge)); |
| EXPECT_TRUE( a.ule(edge)); |
| EXPECT_TRUE(!a.ugt(edge)); |
| EXPECT_TRUE( a.uge(edge)); |
| EXPECT_TRUE( a.ult(edgeP1)); |
| EXPECT_TRUE( a.ule(edgeP1)); |
| EXPECT_TRUE(!a.ugt(edgeP1)); |
| EXPECT_TRUE(!a.uge(edgeP1)); |
| EXPECT_TRUE(!a.ult(edgeM1)); |
| EXPECT_TRUE(!a.ule(edgeM1)); |
| EXPECT_TRUE( a.ugt(edgeM1)); |
| EXPECT_TRUE( a.uge(edgeM1)); |
| |
| EXPECT_TRUE(!a.slt(edge)); |
| EXPECT_TRUE( a.sle(edge)); |
| EXPECT_TRUE(!a.sgt(edge)); |
| EXPECT_TRUE( a.sge(edge)); |
| EXPECT_TRUE( a.slt(edgeP1)); |
| EXPECT_TRUE( a.sle(edgeP1)); |
| EXPECT_TRUE(!a.sgt(edgeP1)); |
| EXPECT_TRUE(!a.sge(edgeP1)); |
| EXPECT_TRUE(!a.slt(edgeM1)); |
| EXPECT_TRUE(!a.sle(edgeM1)); |
| EXPECT_TRUE( a.sgt(edgeM1)); |
| EXPECT_TRUE( a.sge(edgeM1)); |
| } |
| |
| |
| // Tests different div/rem varaints using scheme (a * b + c) / a |
| void testDiv(APInt a, APInt b, APInt c) { |
| ASSERT_TRUE(a.uge(b)); // Must: a >= b |
| ASSERT_TRUE(a.ugt(c)); // Must: a > c |
| |
| auto p = a * b + c; |
| |
| auto q = p.udiv(a); |
| auto r = p.urem(a); |
| EXPECT_EQ(b, q); |
| EXPECT_EQ(c, r); |
| APInt::udivrem(p, a, q, r); |
| EXPECT_EQ(b, q); |
| EXPECT_EQ(c, r); |
| q = p.sdiv(a); |
| r = p.srem(a); |
| EXPECT_EQ(b, q); |
| EXPECT_EQ(c, r); |
| APInt::sdivrem(p, a, q, r); |
| EXPECT_EQ(b, q); |
| EXPECT_EQ(c, r); |
| |
| if (b.ugt(c)) { // Test also symmetric case |
| q = p.udiv(b); |
| r = p.urem(b); |
| EXPECT_EQ(a, q); |
| EXPECT_EQ(c, r); |
| APInt::udivrem(p, b, q, r); |
| EXPECT_EQ(a, q); |
| EXPECT_EQ(c, r); |
| q = p.sdiv(b); |
| r = p.srem(b); |
| EXPECT_EQ(a, q); |
| EXPECT_EQ(c, r); |
| APInt::sdivrem(p, b, q, r); |
| EXPECT_EQ(a, q); |
| EXPECT_EQ(c, r); |
| } |
| } |
| |
| TEST(APIntTest, divrem_big1) { |
| // Tests KnuthDiv rare step D6 |
| testDiv({256, "1ffffffffffffffff", 16}, |
| {256, "1ffffffffffffffff", 16}, |
| {256, 0}); |
| } |
| |
| TEST(APIntTest, divrem_big2) { |
| // Tests KnuthDiv rare step D6 |
| testDiv({1024, "112233ceff" |
| "cecece000000ffffffffffffffffffff" |
| "ffffffffffffffffffffffffffffffff" |
| "ffffffffffffffffffffffffffffffff" |
| "ffffffffffffffffffffffffffffff33", 16}, |
| {1024, "111111ffffffffffffffff" |
| "ffffffffffffffffffffffffffffffff" |
| "fffffffffffffffffffffffffffffccf" |
| "ffffffffffffffffffffffffffffff00", 16}, |
| {1024, 7919}); |
| } |
| |
| TEST(APIntTest, divrem_big3) { |
| // Tests KnuthDiv case without shift |
| testDiv({256, "80000001ffffffffffffffff", 16}, |
| {256, "ffffffffffffff0000000", 16}, |
| {256, 4219}); |
| } |
| |
| TEST(APIntTest, divrem_big4) { |
| // Tests heap allocation in divide() enfoced by huge numbers |
| testDiv(APInt{4096, 5}.shl(2001), |
| APInt{4096, 1}.shl(2000), |
| APInt{4096, 4219*13}); |
| } |
| |
| TEST(APIntTest, divrem_big5) { |
| // Tests one word divisor case of divide() |
| testDiv(APInt{1024, 19}.shl(811), |
| APInt{1024, 4356013}, // one word |
| APInt{1024, 1}); |
| } |
| |
| TEST(APIntTest, divrem_big6) { |
| // Tests some rare "borrow" cases in D4 step |
| testDiv(APInt{512, "ffffffffffffffff00000000000000000000000001", 16}, |
| APInt{512, "10000000000000001000000000000001", 16}, |
| APInt{512, "10000000000000000000000000000000", 16}); |
| } |
| |
| TEST(APIntTest, divrem_big7) { |
| // Yet another test for KnuthDiv rare step D6. |
| testDiv({224, "800000008000000200000005", 16}, |
| {224, "fffffffd", 16}, |
| {224, "80000000800000010000000f", 16}); |
| } |
| |
| TEST(APIntTest, fromString) { |
| EXPECT_EQ(APInt(32, 0), APInt(32, "0", 2)); |
| EXPECT_EQ(APInt(32, 1), APInt(32, "1", 2)); |
| EXPECT_EQ(APInt(32, 2), APInt(32, "10", 2)); |
| EXPECT_EQ(APInt(32, 3), APInt(32, "11", 2)); |
| EXPECT_EQ(APInt(32, 4), APInt(32, "100", 2)); |
| |
| EXPECT_EQ(APInt(32, 0), APInt(32, "+0", 2)); |
| EXPECT_EQ(APInt(32, 1), APInt(32, "+1", 2)); |
| EXPECT_EQ(APInt(32, 2), APInt(32, "+10", 2)); |
| EXPECT_EQ(APInt(32, 3), APInt(32, "+11", 2)); |
| EXPECT_EQ(APInt(32, 4), APInt(32, "+100", 2)); |
| |
| EXPECT_EQ(APInt(32, uint64_t(-0LL)), APInt(32, "-0", 2)); |
| EXPECT_EQ(APInt(32, uint64_t(-1LL)), APInt(32, "-1", 2)); |
| EXPECT_EQ(APInt(32, uint64_t(-2LL)), APInt(32, "-10", 2)); |
| EXPECT_EQ(APInt(32, uint64_t(-3LL)), APInt(32, "-11", 2)); |
| EXPECT_EQ(APInt(32, uint64_t(-4LL)), APInt(32, "-100", 2)); |
| |
| |
| EXPECT_EQ(APInt(32, 0), APInt(32, "0", 8)); |
| EXPECT_EQ(APInt(32, 1), APInt(32, "1", 8)); |
| EXPECT_EQ(APInt(32, 7), APInt(32, "7", 8)); |
| EXPECT_EQ(APInt(32, 8), APInt(32, "10", 8)); |
| EXPECT_EQ(APInt(32, 15), APInt(32, "17", 8)); |
| EXPECT_EQ(APInt(32, 16), APInt(32, "20", 8)); |
| |
| EXPECT_EQ(APInt(32, +0), APInt(32, "+0", 8)); |
| EXPECT_EQ(APInt(32, +1), APInt(32, "+1", 8)); |
| EXPECT_EQ(APInt(32, +7), APInt(32, "+7", 8)); |
| EXPECT_EQ(APInt(32, +8), APInt(32, "+10", 8)); |
| EXPECT_EQ(APInt(32, +15), APInt(32, "+17", 8)); |
| EXPECT_EQ(APInt(32, +16), APInt(32, "+20", 8)); |
| |
| EXPECT_EQ(APInt(32, uint64_t(-0LL)), APInt(32, "-0", 8)); |
| EXPECT_EQ(APInt(32, uint64_t(-1LL)), APInt(32, "-1", 8)); |
| EXPECT_EQ(APInt(32, uint64_t(-7LL)), APInt(32, "-7", 8)); |
| EXPECT_EQ(APInt(32, uint64_t(-8LL)), APInt(32, "-10", 8)); |
| EXPECT_EQ(APInt(32, uint64_t(-15LL)), APInt(32, "-17", 8)); |
| EXPECT_EQ(APInt(32, uint64_t(-16LL)), APInt(32, "-20", 8)); |
| |
| |
| EXPECT_EQ(APInt(32, 0), APInt(32, "0", 10)); |
| EXPECT_EQ(APInt(32, 1), APInt(32, "1", 10)); |
| EXPECT_EQ(APInt(32, 9), APInt(32, "9", 10)); |
| EXPECT_EQ(APInt(32, 10), APInt(32, "10", 10)); |
| EXPECT_EQ(APInt(32, 19), APInt(32, "19", 10)); |
| EXPECT_EQ(APInt(32, 20), APInt(32, "20", 10)); |
| |
| EXPECT_EQ(APInt(32, uint64_t(-0LL)), APInt(32, "-0", 10)); |
| EXPECT_EQ(APInt(32, uint64_t(-1LL)), APInt(32, "-1", 10)); |
| EXPECT_EQ(APInt(32, uint64_t(-9LL)), APInt(32, "-9", 10)); |
| EXPECT_EQ(APInt(32, uint64_t(-10LL)), APInt(32, "-10", 10)); |
| EXPECT_EQ(APInt(32, uint64_t(-19LL)), APInt(32, "-19", 10)); |
| EXPECT_EQ(APInt(32, uint64_t(-20LL)), APInt(32, "-20", 10)); |
| |
| |
| EXPECT_EQ(APInt(32, 0), APInt(32, "0", 16)); |
| EXPECT_EQ(APInt(32, 1), APInt(32, "1", 16)); |
| EXPECT_EQ(APInt(32, 15), APInt(32, "F", 16)); |
| EXPECT_EQ(APInt(32, 16), APInt(32, "10", 16)); |
| EXPECT_EQ(APInt(32, 31), APInt(32, "1F", 16)); |
| EXPECT_EQ(APInt(32, 32), APInt(32, "20", 16)); |
| |
| EXPECT_EQ(APInt(32, uint64_t(-0LL)), APInt(32, "-0", 16)); |
| EXPECT_EQ(APInt(32, uint64_t(-1LL)), APInt(32, "-1", 16)); |
| EXPECT_EQ(APInt(32, uint64_t(-15LL)), APInt(32, "-F", 16)); |
| EXPECT_EQ(APInt(32, uint64_t(-16LL)), APInt(32, "-10", 16)); |
| EXPECT_EQ(APInt(32, uint64_t(-31LL)), APInt(32, "-1F", 16)); |
| EXPECT_EQ(APInt(32, uint64_t(-32LL)), APInt(32, "-20", 16)); |
| |
| EXPECT_EQ(APInt(32, 0), APInt(32, "0", 36)); |
| EXPECT_EQ(APInt(32, 1), APInt(32, "1", 36)); |
| EXPECT_EQ(APInt(32, 35), APInt(32, "Z", 36)); |
| EXPECT_EQ(APInt(32, 36), APInt(32, "10", 36)); |
| EXPECT_EQ(APInt(32, 71), APInt(32, "1Z", 36)); |
| EXPECT_EQ(APInt(32, 72), APInt(32, "20", 36)); |
| |
| EXPECT_EQ(APInt(32, uint64_t(-0LL)), APInt(32, "-0", 36)); |
| EXPECT_EQ(APInt(32, uint64_t(-1LL)), APInt(32, "-1", 36)); |
| EXPECT_EQ(APInt(32, uint64_t(-35LL)), APInt(32, "-Z", 36)); |
| EXPECT_EQ(APInt(32, uint64_t(-36LL)), APInt(32, "-10", 36)); |
| EXPECT_EQ(APInt(32, uint64_t(-71LL)), APInt(32, "-1Z", 36)); |
| EXPECT_EQ(APInt(32, uint64_t(-72LL)), APInt(32, "-20", 36)); |
| } |
| |
| TEST(APIntTest, FromArray) { |
| EXPECT_EQ(APInt(32, uint64_t(1)), APInt(32, ArrayRef<uint64_t>(1))); |
| } |
| |
| TEST(APIntTest, StringBitsNeeded2) { |
| EXPECT_EQ(1U, APInt::getBitsNeeded( "0", 2)); |
| EXPECT_EQ(1U, APInt::getBitsNeeded( "1", 2)); |
| EXPECT_EQ(2U, APInt::getBitsNeeded( "10", 2)); |
| EXPECT_EQ(2U, APInt::getBitsNeeded( "11", 2)); |
| EXPECT_EQ(3U, APInt::getBitsNeeded("100", 2)); |
| |
| EXPECT_EQ(1U, APInt::getBitsNeeded( "+0", 2)); |
| EXPECT_EQ(1U, APInt::getBitsNeeded( "+1", 2)); |
| EXPECT_EQ(2U, APInt::getBitsNeeded( "+10", 2)); |
| EXPECT_EQ(2U, APInt::getBitsNeeded( "+11", 2)); |
| EXPECT_EQ(3U, APInt::getBitsNeeded("+100", 2)); |
| |
| EXPECT_EQ(2U, APInt::getBitsNeeded( "-0", 2)); |
| EXPECT_EQ(2U, APInt::getBitsNeeded( "-1", 2)); |
| EXPECT_EQ(3U, APInt::getBitsNeeded( "-10", 2)); |
| EXPECT_EQ(3U, APInt::getBitsNeeded( "-11", 2)); |
| EXPECT_EQ(4U, APInt::getBitsNeeded("-100", 2)); |
| } |
| |
| TEST(APIntTest, StringBitsNeeded8) { |
| EXPECT_EQ(3U, APInt::getBitsNeeded( "0", 8)); |
| EXPECT_EQ(3U, APInt::getBitsNeeded( "7", 8)); |
| EXPECT_EQ(6U, APInt::getBitsNeeded("10", 8)); |
| EXPECT_EQ(6U, APInt::getBitsNeeded("17", 8)); |
| EXPECT_EQ(6U, APInt::getBitsNeeded("20", 8)); |
| |
| EXPECT_EQ(3U, APInt::getBitsNeeded( "+0", 8)); |
| EXPECT_EQ(3U, APInt::getBitsNeeded( "+7", 8)); |
| EXPECT_EQ(6U, APInt::getBitsNeeded("+10", 8)); |
| EXPECT_EQ(6U, APInt::getBitsNeeded("+17", 8)); |
| EXPECT_EQ(6U, APInt::getBitsNeeded("+20", 8)); |
| |
| EXPECT_EQ(4U, APInt::getBitsNeeded( "-0", 8)); |
| EXPECT_EQ(4U, APInt::getBitsNeeded( "-7", 8)); |
| EXPECT_EQ(7U, APInt::getBitsNeeded("-10", 8)); |
| EXPECT_EQ(7U, APInt::getBitsNeeded("-17", 8)); |
| EXPECT_EQ(7U, APInt::getBitsNeeded("-20", 8)); |
| } |
| |
| TEST(APIntTest, StringBitsNeeded10) { |
| EXPECT_EQ(1U, APInt::getBitsNeeded( "0", 10)); |
| EXPECT_EQ(2U, APInt::getBitsNeeded( "3", 10)); |
| EXPECT_EQ(4U, APInt::getBitsNeeded( "9", 10)); |
| EXPECT_EQ(4U, APInt::getBitsNeeded("10", 10)); |
| EXPECT_EQ(5U, APInt::getBitsNeeded("19", 10)); |
| EXPECT_EQ(5U, APInt::getBitsNeeded("20", 10)); |
| |
| EXPECT_EQ(1U, APInt::getBitsNeeded( "+0", 10)); |
| EXPECT_EQ(4U, APInt::getBitsNeeded( "+9", 10)); |
| EXPECT_EQ(4U, APInt::getBitsNeeded("+10", 10)); |
| EXPECT_EQ(5U, APInt::getBitsNeeded("+19", 10)); |
| EXPECT_EQ(5U, APInt::getBitsNeeded("+20", 10)); |
| |
| EXPECT_EQ(2U, APInt::getBitsNeeded( "-0", 10)); |
| EXPECT_EQ(5U, APInt::getBitsNeeded( "-9", 10)); |
| EXPECT_EQ(5U, APInt::getBitsNeeded("-10", 10)); |
| EXPECT_EQ(6U, APInt::getBitsNeeded("-19", 10)); |
| EXPECT_EQ(6U, APInt::getBitsNeeded("-20", 10)); |
| } |
| |
| TEST(APIntTest, StringBitsNeeded16) { |
| EXPECT_EQ(4U, APInt::getBitsNeeded( "0", 16)); |
| EXPECT_EQ(4U, APInt::getBitsNeeded( "F", 16)); |
| EXPECT_EQ(8U, APInt::getBitsNeeded("10", 16)); |
| EXPECT_EQ(8U, APInt::getBitsNeeded("1F", 16)); |
| EXPECT_EQ(8U, APInt::getBitsNeeded("20", 16)); |
| |
| EXPECT_EQ(4U, APInt::getBitsNeeded( "+0", 16)); |
| EXPECT_EQ(4U, APInt::getBitsNeeded( "+F", 16)); |
| EXPECT_EQ(8U, APInt::getBitsNeeded("+10", 16)); |
| EXPECT_EQ(8U, APInt::getBitsNeeded("+1F", 16)); |
| EXPECT_EQ(8U, APInt::getBitsNeeded("+20", 16)); |
| |
| EXPECT_EQ(5U, APInt::getBitsNeeded( "-0", 16)); |
| EXPECT_EQ(5U, APInt::getBitsNeeded( "-F", 16)); |
| EXPECT_EQ(9U, APInt::getBitsNeeded("-10", 16)); |
| EXPECT_EQ(9U, APInt::getBitsNeeded("-1F", 16)); |
| EXPECT_EQ(9U, APInt::getBitsNeeded("-20", 16)); |
| } |
| |
| TEST(APIntTest, toString) { |
| SmallString<16> S; |
| bool isSigned; |
| |
| APInt(8, 0).toString(S, 2, true, true); |
| EXPECT_EQ(S.str().str(), "0b0"); |
| S.clear(); |
| APInt(8, 0).toString(S, 8, true, true); |
| EXPECT_EQ(S.str().str(), "00"); |
| S.clear(); |
| APInt(8, 0).toString(S, 10, true, true); |
| EXPECT_EQ(S.str().str(), "0"); |
| S.clear(); |
| APInt(8, 0).toString(S, 16, true, true); |
| EXPECT_EQ(S.str().str(), "0x0"); |
| S.clear(); |
| APInt(8, 0).toString(S, 36, true, false); |
| EXPECT_EQ(S.str().str(), "0"); |
| S.clear(); |
| |
| isSigned = false; |
| APInt(8, 255, isSigned).toString(S, 2, isSigned, true); |
| EXPECT_EQ(S.str().str(), "0b11111111"); |
| S.clear(); |
| APInt(8, 255, isSigned).toString(S, 8, isSigned, true); |
| EXPECT_EQ(S.str().str(), "0377"); |
| S.clear(); |
| APInt(8, 255, isSigned).toString(S, 10, isSigned, true); |
| EXPECT_EQ(S.str().str(), "255"); |
| S.clear(); |
| APInt(8, 255, isSigned).toString(S, 16, isSigned, true); |
| EXPECT_EQ(S.str().str(), "0xFF"); |
| S.clear(); |
| APInt(8, 255, isSigned).toString(S, 36, isSigned, false); |
| EXPECT_EQ(S.str().str(), "73"); |
| S.clear(); |
| |
| isSigned = true; |
| APInt(8, 255, isSigned).toString(S, 2, isSigned, true); |
| EXPECT_EQ(S.str().str(), "-0b1"); |
| S.clear(); |
| APInt(8, 255, isSigned).toString(S, 8, isSigned, true); |
| EXPECT_EQ(S.str().str(), "-01"); |
| S.clear(); |
| APInt(8, 255, isSigned).toString(S, 10, isSigned, true); |
| EXPECT_EQ(S.str().str(), "-1"); |
| S.clear(); |
| APInt(8, 255, isSigned).toString(S, 16, isSigned, true); |
| EXPECT_EQ(S.str().str(), "-0x1"); |
| S.clear(); |
| APInt(8, 255, isSigned).toString(S, 36, isSigned, false); |
| EXPECT_EQ(S.str().str(), "-1"); |
| S.clear(); |
| } |
| |
| TEST(APIntTest, Log2) { |
| EXPECT_EQ(APInt(15, 7).logBase2(), 2U); |
| EXPECT_EQ(APInt(15, 7).ceilLogBase2(), 3U); |
| EXPECT_EQ(APInt(15, 7).exactLogBase2(), -1); |
| EXPECT_EQ(APInt(15, 8).logBase2(), 3U); |
| EXPECT_EQ(APInt(15, 8).ceilLogBase2(), 3U); |
| EXPECT_EQ(APInt(15, 8).exactLogBase2(), 3); |
| EXPECT_EQ(APInt(15, 9).logBase2(), 3U); |
| EXPECT_EQ(APInt(15, 9).ceilLogBase2(), 4U); |
| EXPECT_EQ(APInt(15, 9).exactLogBase2(), -1); |
| } |
| |
| TEST(APIntTest, magic) { |
| EXPECT_EQ(APInt(32, 3).magic().m, APInt(32, "55555556", 16)); |
| EXPECT_EQ(APInt(32, 3).magic().s, 0U); |
| EXPECT_EQ(APInt(32, 5).magic().m, APInt(32, "66666667", 16)); |
| EXPECT_EQ(APInt(32, 5).magic().s, 1U); |
| EXPECT_EQ(APInt(32, 7).magic().m, APInt(32, "92492493", 16)); |
| EXPECT_EQ(APInt(32, 7).magic().s, 2U); |
| } |
| |
| TEST(APIntTest, magicu) { |
| EXPECT_EQ(APInt(32, 3).magicu().m, APInt(32, "AAAAAAAB", 16)); |
| EXPECT_EQ(APInt(32, 3).magicu().s, 1U); |
| EXPECT_EQ(APInt(32, 5).magicu().m, APInt(32, "CCCCCCCD", 16)); |
| EXPECT_EQ(APInt(32, 5).magicu().s, 2U); |
| EXPECT_EQ(APInt(32, 7).magicu().m, APInt(32, "24924925", 16)); |
| EXPECT_EQ(APInt(32, 7).magicu().s, 3U); |
| EXPECT_EQ(APInt(64, 25).magicu(1).m, APInt(64, "A3D70A3D70A3D70B", 16)); |
| EXPECT_EQ(APInt(64, 25).magicu(1).s, 4U); |
| } |
| |
| #ifdef GTEST_HAS_DEATH_TEST |
| #ifndef NDEBUG |
| TEST(APIntTest, StringDeath) { |
| EXPECT_DEATH(APInt(0, "", 0), "Bitwidth too small"); |
| EXPECT_DEATH(APInt(32, "", 0), "Invalid string length"); |
| EXPECT_DEATH(APInt(32, "0", 0), "Radix should be 2, 8, 10, 16, or 36!"); |
| EXPECT_DEATH(APInt(32, "", 10), "Invalid string length"); |
| EXPECT_DEATH(APInt(32, "-", 10), "String is only a sign, needs a value."); |
| EXPECT_DEATH(APInt(1, "1234", 10), "Insufficient bit width"); |
| EXPECT_DEATH(APInt(32, "\0", 10), "Invalid string length"); |
| EXPECT_DEATH(APInt(32, StringRef("1\02", 3), 10), "Invalid character in digit string"); |
| EXPECT_DEATH(APInt(32, "1L", 10), "Invalid character in digit string"); |
| } |
| #endif |
| #endif |
| |
| TEST(APIntTest, mul_clear) { |
| APInt ValA(65, -1ULL); |
| APInt ValB(65, 4); |
| APInt ValC(65, 0); |
| ValC = ValA * ValB; |
| ValA *= ValB; |
| EXPECT_EQ(ValA.toString(10, false), ValC.toString(10, false)); |
| } |
| |
| TEST(APIntTest, Rotate) { |
| EXPECT_EQ(APInt(8, 1), APInt(8, 1).rotl(0)); |
| EXPECT_EQ(APInt(8, 2), APInt(8, 1).rotl(1)); |
| EXPECT_EQ(APInt(8, 4), APInt(8, 1).rotl(2)); |
| EXPECT_EQ(APInt(8, 16), APInt(8, 1).rotl(4)); |
| EXPECT_EQ(APInt(8, 1), APInt(8, 1).rotl(8)); |
| |
| EXPECT_EQ(APInt(8, 16), APInt(8, 16).rotl(0)); |
| EXPECT_EQ(APInt(8, 32), APInt(8, 16).rotl(1)); |
| EXPECT_EQ(APInt(8, 64), APInt(8, 16).rotl(2)); |
| EXPECT_EQ(APInt(8, 1), APInt(8, 16).rotl(4)); |
| EXPECT_EQ(APInt(8, 16), APInt(8, 16).rotl(8)); |
| |
| EXPECT_EQ(APInt(8, 16), APInt(8, 16).rotr(0)); |
| EXPECT_EQ(APInt(8, 8), APInt(8, 16).rotr(1)); |
| EXPECT_EQ(APInt(8, 4), APInt(8, 16).rotr(2)); |
| EXPECT_EQ(APInt(8, 1), APInt(8, 16).rotr(4)); |
| EXPECT_EQ(APInt(8, 16), APInt(8, 16).rotr(8)); |
| |
| EXPECT_EQ(APInt(8, 1), APInt(8, 1).rotr(0)); |
| EXPECT_EQ(APInt(8, 128), APInt(8, 1).rotr(1)); |
| EXPECT_EQ(APInt(8, 64), APInt(8, 1).rotr(2)); |
| EXPECT_EQ(APInt(8, 16), APInt(8, 1).rotr(4)); |
| EXPECT_EQ(APInt(8, 1), APInt(8, 1).rotr(8)); |
| |
| APInt Big(256, "00004000800000000000000000003fff8000000000000000", 16); |
| APInt Rot(256, "3fff80000000000000000000000000000000000040008000", 16); |
| EXPECT_EQ(Rot, Big.rotr(144)); |
| } |
| |
| TEST(APIntTest, Splat) { |
| APInt ValA(8, 0x01); |
| EXPECT_EQ(ValA, APInt::getSplat(8, ValA)); |
| EXPECT_EQ(APInt(64, 0x0101010101010101ULL), APInt::getSplat(64, ValA)); |
| |
| APInt ValB(3, 5); |
| EXPECT_EQ(APInt(4, 0xD), APInt::getSplat(4, ValB)); |
| EXPECT_EQ(APInt(15, 0xDB6D), APInt::getSplat(15, ValB)); |
| } |
| |
| TEST(APIntTest, tcDecrement) { |
| // Test single word decrement. |
| |
| // No out borrow. |
| { |
| integerPart singleWord = ~integerPart(0) << (integerPartWidth - 1); |
| integerPart carry = APInt::tcDecrement(&singleWord, 1); |
| EXPECT_EQ(carry, integerPart(0)); |
| EXPECT_EQ(singleWord, ~integerPart(0) >> 1); |
| } |
| |
| // With out borrow. |
| { |
| integerPart singleWord = 0; |
| integerPart carry = APInt::tcDecrement(&singleWord, 1); |
| EXPECT_EQ(carry, integerPart(1)); |
| EXPECT_EQ(singleWord, ~integerPart(0)); |
| } |
| |
| // Test multiword decrement. |
| |
| // No across word borrow, no out borrow. |
| { |
| integerPart test[4] = {0x1, 0x1, 0x1, 0x1}; |
| integerPart expected[4] = {0x0, 0x1, 0x1, 0x1}; |
| APInt::tcDecrement(test, 4); |
| EXPECT_EQ(APInt::tcCompare(test, expected, 4), 0); |
| } |
| |
| // 1 across word borrow, no out borrow. |
| { |
| integerPart test[4] = {0x0, 0xF, 0x1, 0x1}; |
| integerPart expected[4] = {~integerPart(0), 0xE, 0x1, 0x1}; |
| integerPart carry = APInt::tcDecrement(test, 4); |
| EXPECT_EQ(carry, integerPart(0)); |
| EXPECT_EQ(APInt::tcCompare(test, expected, 4), 0); |
| } |
| |
| // 2 across word borrow, no out borrow. |
| { |
| integerPart test[4] = {0x0, 0x0, 0xC, 0x1}; |
| integerPart expected[4] = {~integerPart(0), ~integerPart(0), 0xB, 0x1}; |
| integerPart carry = APInt::tcDecrement(test, 4); |
| EXPECT_EQ(carry, integerPart(0)); |
| EXPECT_EQ(APInt::tcCompare(test, expected, 4), 0); |
| } |
| |
| // 3 across word borrow, no out borrow. |
| { |
| integerPart test[4] = {0x0, 0x0, 0x0, 0x1}; |
| integerPart expected[4] = {~integerPart(0), ~integerPart(0), ~integerPart(0), 0x0}; |
| integerPart carry = APInt::tcDecrement(test, 4); |
| EXPECT_EQ(carry, integerPart(0)); |
| EXPECT_EQ(APInt::tcCompare(test, expected, 4), 0); |
| } |
| |
| // 3 across word borrow, with out borrow. |
| { |
| integerPart test[4] = {0x0, 0x0, 0x0, 0x0}; |
| integerPart expected[4] = {~integerPart(0), ~integerPart(0), ~integerPart(0), ~integerPart(0)}; |
| integerPart carry = APInt::tcDecrement(test, 4); |
| EXPECT_EQ(carry, integerPart(1)); |
| EXPECT_EQ(APInt::tcCompare(test, expected, 4), 0); |
| } |
| } |
| |
| TEST(APIntTest, arrayAccess) { |
| // Single word check. |
| uint64_t E1 = 0x2CA7F46BF6569915ULL; |
| APInt A1(64, E1); |
| for (unsigned i = 0, e = 64; i < e; ++i) { |
| EXPECT_EQ(bool(E1 & (1ULL << i)), |
| A1[i]); |
| } |
| |
| // Multiword check. |
| integerPart E2[4] = { |
| 0xEB6EB136591CBA21ULL, |
| 0x7B9358BD6A33F10AULL, |
| 0x7E7FFA5EADD8846ULL, |
| 0x305F341CA00B613DULL |
| }; |
| APInt A2(integerPartWidth*4, E2); |
| for (unsigned i = 0; i < 4; ++i) { |
| for (unsigned j = 0; j < integerPartWidth; ++j) { |
| EXPECT_EQ(bool(E2[i] & (1ULL << j)), |
| A2[i*integerPartWidth + j]); |
| } |
| } |
| } |
| |
| TEST(APIntTest, LargeAPIntConstruction) { |
| // Check that we can properly construct very large APInt. It is very |
| // unlikely that people will ever do this, but it is a legal input, |
| // so we should not crash on it. |
| APInt A9(UINT32_MAX, 0); |
| EXPECT_FALSE(A9.getBoolValue()); |
| } |
| |
| TEST(APIntTest, nearestLogBase2) { |
| // Single word check. |
| |
| // Test round up. |
| uint64_t I1 = 0x1800001; |
| APInt A1(64, I1); |
| EXPECT_EQ(A1.nearestLogBase2(), A1.ceilLogBase2()); |
| |
| // Test round down. |
| uint64_t I2 = 0x1000011; |
| APInt A2(64, I2); |
| EXPECT_EQ(A2.nearestLogBase2(), A2.logBase2()); |
| |
| // Test ties round up. |
| uint64_t I3 = 0x1800000; |
| APInt A3(64, I3); |
| EXPECT_EQ(A3.nearestLogBase2(), A3.ceilLogBase2()); |
| |
| // Multiple word check. |
| |
| // Test round up. |
| integerPart I4[4] = {0x0, 0xF, 0x18, 0x0}; |
| APInt A4(integerPartWidth*4, I4); |
| EXPECT_EQ(A4.nearestLogBase2(), A4.ceilLogBase2()); |
| |
| // Test round down. |
| integerPart I5[4] = {0x0, 0xF, 0x10, 0x0}; |
| APInt A5(integerPartWidth*4, I5); |
| EXPECT_EQ(A5.nearestLogBase2(), A5.logBase2()); |
| |
| // Test ties round up. |
| uint64_t I6[4] = {0x0, 0x0, 0x0, 0x18}; |
| APInt A6(integerPartWidth*4, I6); |
| EXPECT_EQ(A6.nearestLogBase2(), A6.ceilLogBase2()); |
| |
| // Test BitWidth == 1 special cases. |
| APInt A7(1, 1); |
| EXPECT_EQ(A7.nearestLogBase2(), 0ULL); |
| APInt A8(1, 0); |
| EXPECT_EQ(A8.nearestLogBase2(), UINT32_MAX); |
| |
| // Test the zero case when we have a bit width large enough such |
| // that the bit width is larger than UINT32_MAX-1. |
| APInt A9(UINT32_MAX, 0); |
| EXPECT_EQ(A9.nearestLogBase2(), UINT32_MAX); |
| } |
| |
| TEST(APIntTest, IsSplat) { |
| APInt A(32, 0x01010101); |
| EXPECT_FALSE(A.isSplat(1)); |
| EXPECT_FALSE(A.isSplat(2)); |
| EXPECT_FALSE(A.isSplat(4)); |
| EXPECT_TRUE(A.isSplat(8)); |
| EXPECT_TRUE(A.isSplat(16)); |
| EXPECT_TRUE(A.isSplat(32)); |
| |
| APInt B(24, 0xAAAAAA); |
| EXPECT_FALSE(B.isSplat(1)); |
| EXPECT_TRUE(B.isSplat(2)); |
| EXPECT_TRUE(B.isSplat(4)); |
| EXPECT_TRUE(B.isSplat(8)); |
| EXPECT_TRUE(B.isSplat(24)); |
| |
| APInt C(24, 0xABAAAB); |
| EXPECT_FALSE(C.isSplat(1)); |
| EXPECT_FALSE(C.isSplat(2)); |
| EXPECT_FALSE(C.isSplat(4)); |
| EXPECT_FALSE(C.isSplat(8)); |
| EXPECT_TRUE(C.isSplat(24)); |
| |
| APInt D(32, 0xABBAABBA); |
| EXPECT_FALSE(D.isSplat(1)); |
| EXPECT_FALSE(D.isSplat(2)); |
| EXPECT_FALSE(D.isSplat(4)); |
| EXPECT_FALSE(D.isSplat(8)); |
| EXPECT_TRUE(D.isSplat(16)); |
| EXPECT_TRUE(D.isSplat(32)); |
| |
| APInt E(32, 0); |
| EXPECT_TRUE(E.isSplat(1)); |
| EXPECT_TRUE(E.isSplat(2)); |
| EXPECT_TRUE(E.isSplat(4)); |
| EXPECT_TRUE(E.isSplat(8)); |
| EXPECT_TRUE(E.isSplat(16)); |
| EXPECT_TRUE(E.isSplat(32)); |
| } |
| |
| #if defined(__clang__) |
| // Disable the pragma warning from versions of Clang without -Wself-move |
| #pragma clang diagnostic push |
| #pragma clang diagnostic ignored "-Wunknown-pragmas" |
| // Disable the warning that triggers on exactly what is being tested. |
| #pragma clang diagnostic push |
| #pragma clang diagnostic ignored "-Wself-move" |
| #endif |
| TEST(APIntTest, SelfMoveAssignment) { |
| APInt X(32, 0xdeadbeef); |
| X = std::move(X); |
| EXPECT_EQ(32u, X.getBitWidth()); |
| EXPECT_EQ(0xdeadbeefULL, X.getLimitedValue()); |
| |
| uint64_t Bits[] = {0xdeadbeefdeadbeefULL, 0xdeadbeefdeadbeefULL}; |
| APInt Y(128, Bits); |
| Y = std::move(Y); |
| EXPECT_EQ(128u, Y.getBitWidth()); |
| EXPECT_EQ(~0ULL, Y.getLimitedValue()); |
| const uint64_t *Raw = Y.getRawData(); |
| EXPECT_EQ(2u, Y.getNumWords()); |
| EXPECT_EQ(0xdeadbeefdeadbeefULL, Raw[0]); |
| EXPECT_EQ(0xdeadbeefdeadbeefULL, Raw[1]); |
| } |
| #if defined(__clang__) |
| #pragma clang diagnostic pop |
| #pragma clang diagnostic pop |
| #endif |
| } |