| //===- 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/ArrayRef.h" |
| #include "llvm/ADT/SmallString.h" |
| #include "gtest/gtest.h" |
| #include <array> |
| |
| 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, i64_ArithmeticRightShiftNegative) { |
| const APInt neg_one(64, static_cast<uint64_t>(-1), true); |
| EXPECT_EQ(neg_one, neg_one.ashr(7)); |
| } |
| |
| 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()); |
| } |
| |
| 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()); |
| } |
| |
| TEST(APIntTest, i61_Count) { |
| APInt i61(61, 1 << 15); |
| EXPECT_EQ(45u, i61.countLeadingZeros()); |
| EXPECT_EQ(0u, i61.countLeadingOnes()); |
| EXPECT_EQ(16u, i61.getActiveBits()); |
| EXPECT_EQ(15u, i61.countTrailingZeros()); |
| EXPECT_EQ(1u, i61.countPopulation()); |
| EXPECT_EQ(static_cast<int64_t>(1 << 15), i61.getSExtValue()); |
| EXPECT_EQ(static_cast<uint64_t>(1 << 15), i61.getZExtValue()); |
| |
| i61.setBits(8, 19); |
| EXPECT_EQ(42u, i61.countLeadingZeros()); |
| EXPECT_EQ(0u, i61.countLeadingOnes()); |
| EXPECT_EQ(19u, i61.getActiveBits()); |
| EXPECT_EQ(8u, i61.countTrailingZeros()); |
| EXPECT_EQ(11u, i61.countPopulation()); |
| EXPECT_EQ(static_cast<int64_t>((1 << 19) - (1 << 8)), i61.getSExtValue()); |
| EXPECT_EQ(static_cast<uint64_t>((1 << 19) - (1 << 8)), i61.getZExtValue()); |
| } |
| |
| 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()); |
| |
| APInt s128(128, 2, true); |
| EXPECT_EQ(126u, s128.countLeadingZeros()); |
| EXPECT_EQ(0u, s128.countLeadingOnes()); |
| EXPECT_EQ(2u, s128.getActiveBits()); |
| EXPECT_EQ(1u, s128.countTrailingZeros()); |
| EXPECT_EQ(0u, s128.countTrailingOnes()); |
| EXPECT_EQ(1u, s128.countPopulation()); |
| EXPECT_EQ(2, s128.getSExtValue()); |
| EXPECT_EQ(2u, s128.getZExtValue()); |
| |
| // NOP Test |
| s128.setBits(42, 42); |
| EXPECT_EQ(126u, s128.countLeadingZeros()); |
| EXPECT_EQ(0u, s128.countLeadingOnes()); |
| EXPECT_EQ(2u, s128.getActiveBits()); |
| EXPECT_EQ(1u, s128.countTrailingZeros()); |
| EXPECT_EQ(0u, s128.countTrailingOnes()); |
| EXPECT_EQ(1u, s128.countPopulation()); |
| EXPECT_EQ(2, s128.getSExtValue()); |
| EXPECT_EQ(2u, s128.getZExtValue()); |
| |
| s128.setBits(3, 32); |
| EXPECT_EQ(96u, s128.countLeadingZeros()); |
| EXPECT_EQ(0u, s128.countLeadingOnes()); |
| EXPECT_EQ(32u, s128.getActiveBits()); |
| EXPECT_EQ(33u, s128.getMinSignedBits()); |
| EXPECT_EQ(1u, s128.countTrailingZeros()); |
| EXPECT_EQ(0u, s128.countTrailingOnes()); |
| EXPECT_EQ(30u, s128.countPopulation()); |
| EXPECT_EQ(static_cast<uint32_t>((~0u << 3) | 2), s128.getZExtValue()); |
| |
| s128.setBits(62, 128); |
| EXPECT_EQ(0u, s128.countLeadingZeros()); |
| EXPECT_EQ(66u, s128.countLeadingOnes()); |
| EXPECT_EQ(128u, s128.getActiveBits()); |
| EXPECT_EQ(63u, s128.getMinSignedBits()); |
| EXPECT_EQ(1u, s128.countTrailingZeros()); |
| EXPECT_EQ(0u, s128.countTrailingOnes()); |
| EXPECT_EQ(96u, s128.countPopulation()); |
| EXPECT_EQ(static_cast<int64_t>((3ull << 62) | |
| static_cast<uint32_t>((~0u << 3) | 2)), |
| s128.getSExtValue()); |
| } |
| |
| TEST(APIntTest, i256) { |
| APInt s256(256, 15, true); |
| EXPECT_EQ(252u, s256.countLeadingZeros()); |
| EXPECT_EQ(0u, s256.countLeadingOnes()); |
| EXPECT_EQ(4u, s256.getActiveBits()); |
| EXPECT_EQ(0u, s256.countTrailingZeros()); |
| EXPECT_EQ(4u, s256.countTrailingOnes()); |
| EXPECT_EQ(4u, s256.countPopulation()); |
| EXPECT_EQ(15, s256.getSExtValue()); |
| EXPECT_EQ(15u, s256.getZExtValue()); |
| |
| s256.setBits(62, 66); |
| EXPECT_EQ(190u, s256.countLeadingZeros()); |
| EXPECT_EQ(0u, s256.countLeadingOnes()); |
| EXPECT_EQ(66u, s256.getActiveBits()); |
| EXPECT_EQ(67u, s256.getMinSignedBits()); |
| EXPECT_EQ(0u, s256.countTrailingZeros()); |
| EXPECT_EQ(4u, s256.countTrailingOnes()); |
| EXPECT_EQ(8u, s256.countPopulation()); |
| |
| s256.setBits(60, 256); |
| EXPECT_EQ(0u, s256.countLeadingZeros()); |
| EXPECT_EQ(196u, s256.countLeadingOnes()); |
| EXPECT_EQ(256u, s256.getActiveBits()); |
| EXPECT_EQ(61u, s256.getMinSignedBits()); |
| EXPECT_EQ(0u, s256.countTrailingZeros()); |
| EXPECT_EQ(4u, s256.countTrailingOnes()); |
| EXPECT_EQ(200u, s256.countPopulation()); |
| EXPECT_EQ(static_cast<int64_t>((~0ull << 60) | 15), s256.getSExtValue()); |
| } |
| |
| 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); |
| |
| // And |
| EXPECT_EQ(zero, zero & zero); |
| EXPECT_EQ(zero, one & zero); |
| EXPECT_EQ(zero, zero & one); |
| EXPECT_EQ(one, one & one); |
| EXPECT_EQ(zero, zero & zero); |
| EXPECT_EQ(zero, neg_one & zero); |
| EXPECT_EQ(zero, zero & neg_one); |
| EXPECT_EQ(neg_one, neg_one & neg_one); |
| |
| // Or |
| EXPECT_EQ(zero, zero | zero); |
| EXPECT_EQ(one, one | zero); |
| EXPECT_EQ(one, zero | one); |
| EXPECT_EQ(one, one | one); |
| EXPECT_EQ(zero, zero | zero); |
| EXPECT_EQ(neg_one, neg_one | zero); |
| EXPECT_EQ(neg_one, zero | neg_one); |
| EXPECT_EQ(neg_one, neg_one | neg_one); |
| |
| // Xor |
| EXPECT_EQ(zero, zero ^ zero); |
| EXPECT_EQ(one, one ^ zero); |
| EXPECT_EQ(one, zero ^ one); |
| EXPECT_EQ(zero, one ^ one); |
| EXPECT_EQ(zero, zero ^ zero); |
| EXPECT_EQ(neg_one, neg_one ^ zero); |
| EXPECT_EQ(neg_one, zero ^ neg_one); |
| EXPECT_EQ(zero, neg_one ^ neg_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(one, 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)); |
| } |
| |
| TEST(APIntTest, compareLargeIntegers) { |
| // Make sure all the combinations of signed comparisons work with big ints. |
| auto One = APInt{128, static_cast<uint64_t>(1), true}; |
| auto Two = APInt{128, static_cast<uint64_t>(2), true}; |
| auto MinusOne = APInt{128, static_cast<uint64_t>(-1), true}; |
| auto MinusTwo = APInt{128, static_cast<uint64_t>(-2), true}; |
| |
| EXPECT_TRUE(!One.slt(One)); |
| EXPECT_TRUE(!Two.slt(One)); |
| EXPECT_TRUE(MinusOne.slt(One)); |
| EXPECT_TRUE(MinusTwo.slt(One)); |
| |
| EXPECT_TRUE(One.slt(Two)); |
| EXPECT_TRUE(!Two.slt(Two)); |
| EXPECT_TRUE(MinusOne.slt(Two)); |
| EXPECT_TRUE(MinusTwo.slt(Two)); |
| |
| EXPECT_TRUE(!One.slt(MinusOne)); |
| EXPECT_TRUE(!Two.slt(MinusOne)); |
| EXPECT_TRUE(!MinusOne.slt(MinusOne)); |
| EXPECT_TRUE(MinusTwo.slt(MinusOne)); |
| |
| EXPECT_TRUE(!One.slt(MinusTwo)); |
| EXPECT_TRUE(!Two.slt(MinusTwo)); |
| EXPECT_TRUE(!MinusOne.slt(MinusTwo)); |
| EXPECT_TRUE(!MinusTwo.slt(MinusTwo)); |
| } |
| |
| TEST(APIntTest, binaryOpsWithRawIntegers) { |
| // Single word check. |
| uint64_t E1 = 0x2CA7F46BF6569915ULL; |
| APInt A1(64, E1); |
| |
| EXPECT_EQ(A1 & E1, E1); |
| EXPECT_EQ(A1 & 0, 0); |
| EXPECT_EQ(A1 & 1, 1); |
| EXPECT_EQ(A1 & 5, 5); |
| EXPECT_EQ(A1 & UINT64_MAX, E1); |
| |
| EXPECT_EQ(A1 | E1, E1); |
| EXPECT_EQ(A1 | 0, E1); |
| EXPECT_EQ(A1 | 1, E1); |
| EXPECT_EQ(A1 | 2, E1 | 2); |
| EXPECT_EQ(A1 | UINT64_MAX, UINT64_MAX); |
| |
| EXPECT_EQ(A1 ^ E1, 0); |
| EXPECT_EQ(A1 ^ 0, E1); |
| EXPECT_EQ(A1 ^ 1, E1 ^ 1); |
| EXPECT_EQ(A1 ^ 7, E1 ^ 7); |
| EXPECT_EQ(A1 ^ UINT64_MAX, ~E1); |
| |
| // Multiword check. |
| uint64_t N = 0xEB6EB136591CBA21ULL; |
| APInt::WordType E2[4] = { |
| N, |
| 0x7B9358BD6A33F10AULL, |
| 0x7E7FFA5EADD8846ULL, |
| 0x305F341CA00B613DULL |
| }; |
| APInt A2(APInt::APINT_BITS_PER_WORD*4, E2); |
| |
| EXPECT_EQ(A2 & N, N); |
| EXPECT_EQ(A2 & 0, 0); |
| EXPECT_EQ(A2 & 1, 1); |
| EXPECT_EQ(A2 & 5, 1); |
| EXPECT_EQ(A2 & UINT64_MAX, N); |
| |
| EXPECT_EQ(A2 | N, A2); |
| EXPECT_EQ(A2 | 0, A2); |
| EXPECT_EQ(A2 | 1, A2); |
| EXPECT_EQ(A2 | 2, A2 + 2); |
| EXPECT_EQ(A2 | UINT64_MAX, A2 - N + UINT64_MAX); |
| |
| EXPECT_EQ(A2 ^ N, A2 - N); |
| EXPECT_EQ(A2 ^ 0, A2); |
| EXPECT_EQ(A2 ^ 1, A2 - 1); |
| EXPECT_EQ(A2 ^ 7, A2 + 5); |
| EXPECT_EQ(A2 ^ UINT64_MAX, A2 - N + ~N); |
| } |
| |
| TEST(APIntTest, rvalue_arithmetic) { |
| // Test all combinations of lvalue/rvalue lhs/rhs of add/sub |
| |
| // Lamdba to return an APInt by value, but also provide the raw value of the |
| // allocated data. |
| auto getRValue = [](const char *HexString, uint64_t const *&RawData) { |
| APInt V(129, HexString, 16); |
| RawData = V.getRawData(); |
| return V; |
| }; |
| |
| APInt One(129, "1", 16); |
| APInt Two(129, "2", 16); |
| APInt Three(129, "3", 16); |
| APInt MinusOne = -One; |
| |
| const uint64_t *RawDataL = nullptr; |
| const uint64_t *RawDataR = nullptr; |
| |
| { |
| // 1 + 1 = 2 |
| APInt AddLL = One + One; |
| EXPECT_EQ(AddLL, Two); |
| |
| APInt AddLR = One + getRValue("1", RawDataR); |
| EXPECT_EQ(AddLR, Two); |
| EXPECT_EQ(AddLR.getRawData(), RawDataR); |
| |
| APInt AddRL = getRValue("1", RawDataL) + One; |
| EXPECT_EQ(AddRL, Two); |
| EXPECT_EQ(AddRL.getRawData(), RawDataL); |
| |
| APInt AddRR = getRValue("1", RawDataL) + getRValue("1", RawDataR); |
| EXPECT_EQ(AddRR, Two); |
| EXPECT_EQ(AddRR.getRawData(), RawDataR); |
| |
| // LValue's and constants |
| APInt AddLK = One + 1; |
| EXPECT_EQ(AddLK, Two); |
| |
| APInt AddKL = 1 + One; |
| EXPECT_EQ(AddKL, Two); |
| |
| // RValue's and constants |
| APInt AddRK = getRValue("1", RawDataL) + 1; |
| EXPECT_EQ(AddRK, Two); |
| EXPECT_EQ(AddRK.getRawData(), RawDataL); |
| |
| APInt AddKR = 1 + getRValue("1", RawDataR); |
| EXPECT_EQ(AddKR, Two); |
| EXPECT_EQ(AddKR.getRawData(), RawDataR); |
| } |
| |
| { |
| // 0x0,FFFF...FFFF + 0x2 = 0x100...0001 |
| APInt AllOnes(129, "0FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", 16); |
| APInt HighOneLowOne(129, "100000000000000000000000000000001", 16); |
| |
| APInt AddLL = AllOnes + Two; |
| EXPECT_EQ(AddLL, HighOneLowOne); |
| |
| APInt AddLR = AllOnes + getRValue("2", RawDataR); |
| EXPECT_EQ(AddLR, HighOneLowOne); |
| EXPECT_EQ(AddLR.getRawData(), RawDataR); |
| |
| APInt AddRL = getRValue("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", RawDataL) + Two; |
| EXPECT_EQ(AddRL, HighOneLowOne); |
| EXPECT_EQ(AddRL.getRawData(), RawDataL); |
| |
| APInt AddRR = getRValue("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", RawDataL) + |
| getRValue("2", RawDataR); |
| EXPECT_EQ(AddRR, HighOneLowOne); |
| EXPECT_EQ(AddRR.getRawData(), RawDataR); |
| |
| // LValue's and constants |
| APInt AddLK = AllOnes + 2; |
| EXPECT_EQ(AddLK, HighOneLowOne); |
| |
| APInt AddKL = 2 + AllOnes; |
| EXPECT_EQ(AddKL, HighOneLowOne); |
| |
| // RValue's and constants |
| APInt AddRK = getRValue("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", RawDataL) + 2; |
| EXPECT_EQ(AddRK, HighOneLowOne); |
| EXPECT_EQ(AddRK.getRawData(), RawDataL); |
| |
| APInt AddKR = 2 + getRValue("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", RawDataR); |
| EXPECT_EQ(AddKR, HighOneLowOne); |
| EXPECT_EQ(AddKR.getRawData(), RawDataR); |
| } |
| |
| { |
| // 2 - 1 = 1 |
| APInt SubLL = Two - One; |
| EXPECT_EQ(SubLL, One); |
| |
| APInt SubLR = Two - getRValue("1", RawDataR); |
| EXPECT_EQ(SubLR, One); |
| EXPECT_EQ(SubLR.getRawData(), RawDataR); |
| |
| APInt SubRL = getRValue("2", RawDataL) - One; |
| EXPECT_EQ(SubRL, One); |
| EXPECT_EQ(SubRL.getRawData(), RawDataL); |
| |
| APInt SubRR = getRValue("2", RawDataL) - getRValue("1", RawDataR); |
| EXPECT_EQ(SubRR, One); |
| EXPECT_EQ(SubRR.getRawData(), RawDataR); |
| |
| // LValue's and constants |
| APInt SubLK = Two - 1; |
| EXPECT_EQ(SubLK, One); |
| |
| APInt SubKL = 2 - One; |
| EXPECT_EQ(SubKL, One); |
| |
| // RValue's and constants |
| APInt SubRK = getRValue("2", RawDataL) - 1; |
| EXPECT_EQ(SubRK, One); |
| EXPECT_EQ(SubRK.getRawData(), RawDataL); |
| |
| APInt SubKR = 2 - getRValue("1", RawDataR); |
| EXPECT_EQ(SubKR, One); |
| EXPECT_EQ(SubKR.getRawData(), RawDataR); |
| } |
| |
| { |
| // 0x100...0001 - 0x0,FFFF...FFFF = 0x2 |
| APInt AllOnes(129, "0FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", 16); |
| APInt HighOneLowOne(129, "100000000000000000000000000000001", 16); |
| |
| APInt SubLL = HighOneLowOne - AllOnes; |
| EXPECT_EQ(SubLL, Two); |
| |
| APInt SubLR = HighOneLowOne - |
| getRValue("0FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", RawDataR); |
| EXPECT_EQ(SubLR, Two); |
| EXPECT_EQ(SubLR.getRawData(), RawDataR); |
| |
| APInt SubRL = getRValue("100000000000000000000000000000001", RawDataL) - |
| AllOnes; |
| EXPECT_EQ(SubRL, Two); |
| EXPECT_EQ(SubRL.getRawData(), RawDataL); |
| |
| APInt SubRR = getRValue("100000000000000000000000000000001", RawDataL) - |
| getRValue("0FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", RawDataR); |
| EXPECT_EQ(SubRR, Two); |
| EXPECT_EQ(SubRR.getRawData(), RawDataR); |
| |
| // LValue's and constants |
| // 0x100...0001 - 0x2 = 0x0,FFFF...FFFF |
| APInt SubLK = HighOneLowOne - 2; |
| EXPECT_EQ(SubLK, AllOnes); |
| |
| // 2 - (-1) = 3 |
| APInt SubKL = 2 - MinusOne; |
| EXPECT_EQ(SubKL, Three); |
| |
| // RValue's and constants |
| // 0x100...0001 - 0x2 = 0x0,FFFF...FFFF |
| APInt SubRK = getRValue("100000000000000000000000000000001", RawDataL) - 2; |
| EXPECT_EQ(SubRK, AllOnes); |
| EXPECT_EQ(SubRK.getRawData(), RawDataL); |
| |
| APInt SubKR = 2 - getRValue("1FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", RawDataR); |
| EXPECT_EQ(SubKR, Three); |
| EXPECT_EQ(SubKR.getRawData(), RawDataR); |
| } |
| } |
| |
| TEST(APIntTest, rvalue_bitwise) { |
| // Test all combinations of lvalue/rvalue lhs/rhs of and/or/xor |
| |
| // Lamdba to return an APInt by value, but also provide the raw value of the |
| // allocated data. |
| auto getRValue = [](const char *HexString, uint64_t const *&RawData) { |
| APInt V(129, HexString, 16); |
| RawData = V.getRawData(); |
| return V; |
| }; |
| |
| APInt Ten(129, "A", 16); |
| APInt Twelve(129, "C", 16); |
| |
| const uint64_t *RawDataL = nullptr; |
| const uint64_t *RawDataR = nullptr; |
| |
| { |
| // 12 & 10 = 8 |
| APInt AndLL = Ten & Twelve; |
| EXPECT_EQ(AndLL, 0x8); |
| |
| APInt AndLR = Ten & getRValue("C", RawDataR); |
| EXPECT_EQ(AndLR, 0x8); |
| EXPECT_EQ(AndLR.getRawData(), RawDataR); |
| |
| APInt AndRL = getRValue("A", RawDataL) & Twelve; |
| EXPECT_EQ(AndRL, 0x8); |
| EXPECT_EQ(AndRL.getRawData(), RawDataL); |
| |
| APInt AndRR = getRValue("A", RawDataL) & getRValue("C", RawDataR); |
| EXPECT_EQ(AndRR, 0x8); |
| EXPECT_EQ(AndRR.getRawData(), RawDataR); |
| |
| // LValue's and constants |
| APInt AndLK = Ten & 0xc; |
| EXPECT_EQ(AndLK, 0x8); |
| |
| APInt AndKL = 0xa & Twelve; |
| EXPECT_EQ(AndKL, 0x8); |
| |
| // RValue's and constants |
| APInt AndRK = getRValue("A", RawDataL) & 0xc; |
| EXPECT_EQ(AndRK, 0x8); |
| EXPECT_EQ(AndRK.getRawData(), RawDataL); |
| |
| APInt AndKR = 0xa & getRValue("C", RawDataR); |
| EXPECT_EQ(AndKR, 0x8); |
| EXPECT_EQ(AndKR.getRawData(), RawDataR); |
| } |
| |
| { |
| // 12 | 10 = 14 |
| APInt OrLL = Ten | Twelve; |
| EXPECT_EQ(OrLL, 0xe); |
| |
| APInt OrLR = Ten | getRValue("C", RawDataR); |
| EXPECT_EQ(OrLR, 0xe); |
| EXPECT_EQ(OrLR.getRawData(), RawDataR); |
| |
| APInt OrRL = getRValue("A", RawDataL) | Twelve; |
| EXPECT_EQ(OrRL, 0xe); |
| EXPECT_EQ(OrRL.getRawData(), RawDataL); |
| |
| APInt OrRR = getRValue("A", RawDataL) | getRValue("C", RawDataR); |
| EXPECT_EQ(OrRR, 0xe); |
| EXPECT_EQ(OrRR.getRawData(), RawDataR); |
| |
| // LValue's and constants |
| APInt OrLK = Ten | 0xc; |
| EXPECT_EQ(OrLK, 0xe); |
| |
| APInt OrKL = 0xa | Twelve; |
| EXPECT_EQ(OrKL, 0xe); |
| |
| // RValue's and constants |
| APInt OrRK = getRValue("A", RawDataL) | 0xc; |
| EXPECT_EQ(OrRK, 0xe); |
| EXPECT_EQ(OrRK.getRawData(), RawDataL); |
| |
| APInt OrKR = 0xa | getRValue("C", RawDataR); |
| EXPECT_EQ(OrKR, 0xe); |
| EXPECT_EQ(OrKR.getRawData(), RawDataR); |
| } |
| |
| { |
| // 12 ^ 10 = 6 |
| APInt XorLL = Ten ^ Twelve; |
| EXPECT_EQ(XorLL, 0x6); |
| |
| APInt XorLR = Ten ^ getRValue("C", RawDataR); |
| EXPECT_EQ(XorLR, 0x6); |
| EXPECT_EQ(XorLR.getRawData(), RawDataR); |
| |
| APInt XorRL = getRValue("A", RawDataL) ^ Twelve; |
| EXPECT_EQ(XorRL, 0x6); |
| EXPECT_EQ(XorRL.getRawData(), RawDataL); |
| |
| APInt XorRR = getRValue("A", RawDataL) ^ getRValue("C", RawDataR); |
| EXPECT_EQ(XorRR, 0x6); |
| EXPECT_EQ(XorRR.getRawData(), RawDataR); |
| |
| // LValue's and constants |
| APInt XorLK = Ten ^ 0xc; |
| EXPECT_EQ(XorLK, 0x6); |
| |
| APInt XorKL = 0xa ^ Twelve; |
| EXPECT_EQ(XorKL, 0x6); |
| |
| // RValue's and constants |
| APInt XorRK = getRValue("A", RawDataL) ^ 0xc; |
| EXPECT_EQ(XorRK, 0x6); |
| EXPECT_EQ(XorRK.getRawData(), RawDataL); |
| |
| APInt XorKR = 0xa ^ getRValue("C", RawDataR); |
| EXPECT_EQ(XorKR, 0x6); |
| EXPECT_EQ(XorKR.getRawData(), RawDataR); |
| } |
| } |
| |
| TEST(APIntTest, rvalue_invert) { |
| // Lamdba to return an APInt by value, but also provide the raw value of the |
| // allocated data. |
| auto getRValue = [](const char *HexString, uint64_t const *&RawData) { |
| APInt V(129, HexString, 16); |
| RawData = V.getRawData(); |
| return V; |
| }; |
| |
| APInt One(129, 1); |
| APInt NegativeTwo(129, -2ULL, true); |
| |
| const uint64_t *RawData = nullptr; |
| |
| { |
| // ~1 = -2 |
| APInt NegL = ~One; |
| EXPECT_EQ(NegL, NegativeTwo); |
| |
| APInt NegR = ~getRValue("1", RawData); |
| EXPECT_EQ(NegR, NegativeTwo); |
| EXPECT_EQ(NegR.getRawData(), RawData); |
| } |
| } |
| |
| // 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}); |
| } |
| |
| void testDiv(APInt a, uint64_t b, APInt c) { |
| auto p = a * b + c; |
| |
| APInt q; |
| uint64_t r; |
| // Unsigned division will only work if our original number wasn't negative. |
| if (!a.isNegative()) { |
| 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); |
| if (c.isNegative()) |
| EXPECT_EQ(-c, -r); // Need to negate so the uint64_t compare will work. |
| else |
| EXPECT_EQ(c, r); |
| int64_t sr; |
| APInt::sdivrem(p, b, q, sr); |
| EXPECT_EQ(a, q); |
| if (c.isNegative()) |
| EXPECT_EQ(-c, -sr); // Need to negate so the uint64_t compare will work. |
| else |
| EXPECT_EQ(c, sr); |
| } |
| |
| TEST(APIntTest, divremuint) { |
| // Single word APInt |
| testDiv(APInt{64, 9}, |
| 2, |
| APInt{64, 1}); |
| |
| // Single word negative APInt |
| testDiv(-APInt{64, 9}, |
| 2, |
| -APInt{64, 1}); |
| |
| // Multiword dividend with only one significant word. |
| testDiv(APInt{256, 9}, |
| 2, |
| APInt{256, 1}); |
| |
| // Negative dividend. |
| testDiv(-APInt{256, 9}, |
| 2, |
| -APInt{256, 1}); |
| |
| // Multiword dividend |
| testDiv(APInt{1024, 19}.shl(811), |
| 4356013, // one word |
| APInt{1024, 1}); |
| } |
| |
| TEST(APIntTest, divrem_simple) { |
| // Test simple cases. |
| APInt A(65, 2), B(65, 2); |
| APInt Q, R; |
| |
| // X / X |
| APInt::sdivrem(A, B, Q, R); |
| EXPECT_EQ(Q, APInt(65, 1)); |
| EXPECT_EQ(R, APInt(65, 0)); |
| APInt::udivrem(A, B, Q, R); |
| EXPECT_EQ(Q, APInt(65, 1)); |
| EXPECT_EQ(R, APInt(65, 0)); |
| |
| // 0 / X |
| APInt O(65, 0); |
| APInt::sdivrem(O, B, Q, R); |
| EXPECT_EQ(Q, APInt(65, 0)); |
| EXPECT_EQ(R, APInt(65, 0)); |
| APInt::udivrem(O, B, Q, R); |
| EXPECT_EQ(Q, APInt(65, 0)); |
| EXPECT_EQ(R, APInt(65, 0)); |
| |
| // X / 1 |
| APInt I(65, 1); |
| APInt::sdivrem(A, I, Q, R); |
| EXPECT_EQ(Q, A); |
| EXPECT_EQ(R, APInt(65, 0)); |
| APInt::udivrem(A, I, Q, R); |
| EXPECT_EQ(Q, A); |
| EXPECT_EQ(R, APInt(65, 0)); |
| } |
| |
| 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(32, 2), APInt(32, 1).rotl(33)); |
| EXPECT_EQ(APInt(32, 2), APInt(32, 1).rotl(APInt(32, 33))); |
| |
| EXPECT_EQ(APInt(32, 2), APInt(32, 1).rotl(33)); |
| EXPECT_EQ(APInt(32, 2), APInt(32, 1).rotl(APInt(32, 33))); |
| EXPECT_EQ(APInt(32, 2), APInt(32, 1).rotl(APInt(33, 33))); |
| EXPECT_EQ(APInt(32, (1 << 8)), APInt(32, 1).rotl(APInt(32, 40))); |
| EXPECT_EQ(APInt(32, (1 << 30)), APInt(32, 1).rotl(APInt(31, 30))); |
| EXPECT_EQ(APInt(32, (1 << 31)), APInt(32, 1).rotl(APInt(31, 31))); |
| |
| EXPECT_EQ(APInt(32, 1), APInt(32, 1).rotl(APInt(1, 0))); |
| EXPECT_EQ(APInt(32, 2), APInt(32, 1).rotl(APInt(1, 1))); |
| |
| EXPECT_EQ(APInt(32, 16), APInt(32, 1).rotl(APInt(3, 4))); |
| |
| EXPECT_EQ(APInt(32, 1), APInt(32, 1).rotl(APInt(64, 64))); |
| EXPECT_EQ(APInt(32, 2), APInt(32, 1).rotl(APInt(64, 65))); |
| |
| EXPECT_EQ(APInt(7, 24), APInt(7, 3).rotl(APInt(7, 3))); |
| EXPECT_EQ(APInt(7, 24), APInt(7, 3).rotl(APInt(7, 10))); |
| EXPECT_EQ(APInt(7, 24), APInt(7, 3).rotl(APInt(5, 10))); |
| EXPECT_EQ(APInt(7, 6), APInt(7, 3).rotl(APInt(12, 120))); |
| |
| 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)); |
| |
| EXPECT_EQ(APInt(32, (1 << 31)), APInt(32, 1).rotr(33)); |
| EXPECT_EQ(APInt(32, (1 << 31)), APInt(32, 1).rotr(APInt(32, 33))); |
| |
| EXPECT_EQ(APInt(32, (1 << 31)), APInt(32, 1).rotr(33)); |
| EXPECT_EQ(APInt(32, (1 << 31)), APInt(32, 1).rotr(APInt(32, 33))); |
| EXPECT_EQ(APInt(32, (1 << 31)), APInt(32, 1).rotr(APInt(33, 33))); |
| EXPECT_EQ(APInt(32, (1 << 24)), APInt(32, 1).rotr(APInt(32, 40))); |
| |
| EXPECT_EQ(APInt(32, (1 << 2)), APInt(32, 1).rotr(APInt(31, 30))); |
| EXPECT_EQ(APInt(32, (1 << 1)), APInt(32, 1).rotr(APInt(31, 31))); |
| |
| EXPECT_EQ(APInt(32, 1), APInt(32, 1).rotr(APInt(1, 0))); |
| EXPECT_EQ(APInt(32, (1 << 31)), APInt(32, 1).rotr(APInt(1, 1))); |
| |
| EXPECT_EQ(APInt(32, (1 << 28)), APInt(32, 1).rotr(APInt(3, 4))); |
| |
| EXPECT_EQ(APInt(32, 1), APInt(32, 1).rotr(APInt(64, 64))); |
| EXPECT_EQ(APInt(32, (1 << 31)), APInt(32, 1).rotr(APInt(64, 65))); |
| |
| EXPECT_EQ(APInt(7, 48), APInt(7, 3).rotr(APInt(7, 3))); |
| EXPECT_EQ(APInt(7, 48), APInt(7, 3).rotr(APInt(7, 10))); |
| EXPECT_EQ(APInt(7, 48), APInt(7, 3).rotr(APInt(5, 10))); |
| EXPECT_EQ(APInt(7, 65), APInt(7, 3).rotr(APInt(12, 120))); |
| |
| APInt Big(256, "00004000800000000000000000003fff8000000000000003", 16); |
| APInt Rot(256, "3fff80000000000000030000000000000000000040008000", 16); |
| EXPECT_EQ(Rot, Big.rotr(144)); |
| |
| EXPECT_EQ(APInt(32, 8), APInt(32, 1).rotl(Big)); |
| EXPECT_EQ(APInt(32, (1 << 29)), APInt(32, 1).rotr(Big)); |
| } |
| |
| 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. |
| { |
| APInt::WordType singleWord = ~APInt::WordType(0) << (APInt::APINT_BITS_PER_WORD - 1); |
| APInt::WordType carry = APInt::tcDecrement(&singleWord, 1); |
| EXPECT_EQ(carry, APInt::WordType(0)); |
| EXPECT_EQ(singleWord, ~APInt::WordType(0) >> 1); |
| } |
| |
| // With out borrow. |
| { |
| APInt::WordType singleWord = 0; |
| APInt::WordType carry = APInt::tcDecrement(&singleWord, 1); |
| EXPECT_EQ(carry, APInt::WordType(1)); |
| EXPECT_EQ(singleWord, ~APInt::WordType(0)); |
| } |
| |
| // Test multiword decrement. |
| |
| // No across word borrow, no out borrow. |
| { |
| APInt::WordType test[4] = {0x1, 0x1, 0x1, 0x1}; |
| APInt::WordType 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. |
| { |
| APInt::WordType test[4] = {0x0, 0xF, 0x1, 0x1}; |
| APInt::WordType expected[4] = {~APInt::WordType(0), 0xE, 0x1, 0x1}; |
| APInt::WordType carry = APInt::tcDecrement(test, 4); |
| EXPECT_EQ(carry, APInt::WordType(0)); |
| EXPECT_EQ(APInt::tcCompare(test, expected, 4), 0); |
| } |
| |
| // 2 across word borrow, no out borrow. |
| { |
| APInt::WordType test[4] = {0x0, 0x0, 0xC, 0x1}; |
| APInt::WordType expected[4] = {~APInt::WordType(0), ~APInt::WordType(0), 0xB, 0x1}; |
| APInt::WordType carry = APInt::tcDecrement(test, 4); |
| EXPECT_EQ(carry, APInt::WordType(0)); |
| EXPECT_EQ(APInt::tcCompare(test, expected, 4), 0); |
| } |
| |
| // 3 across word borrow, no out borrow. |
| { |
| APInt::WordType test[4] = {0x0, 0x0, 0x0, 0x1}; |
| APInt::WordType expected[4] = {~APInt::WordType(0), ~APInt::WordType(0), ~APInt::WordType(0), 0x0}; |
| APInt::WordType carry = APInt::tcDecrement(test, 4); |
| EXPECT_EQ(carry, APInt::WordType(0)); |
| EXPECT_EQ(APInt::tcCompare(test, expected, 4), 0); |
| } |
| |
| // 3 across word borrow, with out borrow. |
| { |
| APInt::WordType test[4] = {0x0, 0x0, 0x0, 0x0}; |
| APInt::WordType expected[4] = {~APInt::WordType(0), ~APInt::WordType(0), ~APInt::WordType(0), ~APInt::WordType(0)}; |
| APInt::WordType carry = APInt::tcDecrement(test, 4); |
| EXPECT_EQ(carry, APInt::WordType(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. |
| APInt::WordType E2[4] = { |
| 0xEB6EB136591CBA21ULL, |
| 0x7B9358BD6A33F10AULL, |
| 0x7E7FFA5EADD8846ULL, |
| 0x305F341CA00B613DULL |
| }; |
| APInt A2(APInt::APINT_BITS_PER_WORD*4, E2); |
| for (unsigned i = 0; i < 4; ++i) { |
| for (unsigned j = 0; j < APInt::APINT_BITS_PER_WORD; ++j) { |
| EXPECT_EQ(bool(E2[i] & (1ULL << j)), |
| A2[i*APInt::APINT_BITS_PER_WORD + 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. |
| APInt::WordType I4[4] = {0x0, 0xF, 0x18, 0x0}; |
| APInt A4(APInt::APINT_BITS_PER_WORD*4, I4); |
| EXPECT_EQ(A4.nearestLogBase2(), A4.ceilLogBase2()); |
| |
| // Test round down. |
| APInt::WordType I5[4] = {0x0, 0xF, 0x10, 0x0}; |
| APInt A5(APInt::APINT_BITS_PER_WORD*4, I5); |
| EXPECT_EQ(A5.nearestLogBase2(), A5.logBase2()); |
| |
| // Test ties round up. |
| uint64_t I6[4] = {0x0, 0x0, 0x0, 0x18}; |
| APInt A6(APInt::APINT_BITS_PER_WORD*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)); |
| } |
| |
| TEST(APIntTest, isMask) { |
| EXPECT_FALSE(APInt(32, 0x01010101).isMask()); |
| EXPECT_FALSE(APInt(32, 0xf0000000).isMask()); |
| EXPECT_FALSE(APInt(32, 0xffff0000).isMask()); |
| EXPECT_FALSE(APInt(32, 0xff << 1).isMask()); |
| |
| for (int N : { 1, 2, 3, 4, 7, 8, 16, 32, 64, 127, 128, 129, 256 }) { |
| EXPECT_FALSE(APInt(N, 0).isMask()); |
| |
| APInt One(N, 1); |
| for (int I = 1; I <= N; ++I) { |
| APInt MaskVal = One.shl(I) - 1; |
| EXPECT_TRUE(MaskVal.isMask()); |
| EXPECT_TRUE(MaskVal.isMask(I)); |
| } |
| } |
| } |
| |
| TEST(APIntTest, isShiftedMask) { |
| EXPECT_FALSE(APInt(32, 0x01010101).isShiftedMask()); |
| EXPECT_TRUE(APInt(32, 0xf0000000).isShiftedMask()); |
| EXPECT_TRUE(APInt(32, 0xffff0000).isShiftedMask()); |
| EXPECT_TRUE(APInt(32, 0xff << 1).isShiftedMask()); |
| |
| for (int N : { 1, 2, 3, 4, 7, 8, 16, 32, 64, 127, 128, 129, 256 }) { |
| EXPECT_FALSE(APInt(N, 0).isShiftedMask()); |
| |
| APInt One(N, 1); |
| for (int I = 1; I < N; ++I) { |
| APInt MaskVal = One.shl(I) - 1; |
| EXPECT_TRUE(MaskVal.isShiftedMask()); |
| } |
| for (int I = 1; I < N - 1; ++I) { |
| APInt MaskVal = One.shl(I); |
| EXPECT_TRUE(MaskVal.isShiftedMask()); |
| } |
| for (int I = 1; I < N; ++I) { |
| APInt MaskVal = APInt::getHighBitsSet(N, I); |
| EXPECT_TRUE(MaskVal.isShiftedMask()); |
| } |
| } |
| } |
| |
| // Test that self-move works, but only when we're using MSVC. |
| #if defined(_MSC_VER) |
| #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 |
| #endif // _MSC_VER |
| |
| TEST(APIntTest, reverseBits) { |
| EXPECT_EQ(1, APInt(1, 1).reverseBits()); |
| EXPECT_EQ(0, APInt(1, 0).reverseBits()); |
| |
| EXPECT_EQ(3, APInt(2, 3).reverseBits()); |
| EXPECT_EQ(3, APInt(2, 3).reverseBits()); |
| |
| EXPECT_EQ(0xb, APInt(4, 0xd).reverseBits()); |
| EXPECT_EQ(0xd, APInt(4, 0xb).reverseBits()); |
| EXPECT_EQ(0xf, APInt(4, 0xf).reverseBits()); |
| |
| EXPECT_EQ(0x30, APInt(7, 0x6).reverseBits()); |
| EXPECT_EQ(0x5a, APInt(7, 0x2d).reverseBits()); |
| |
| EXPECT_EQ(0x0f, APInt(8, 0xf0).reverseBits()); |
| EXPECT_EQ(0xf0, APInt(8, 0x0f).reverseBits()); |
| |
| EXPECT_EQ(0x0f0f, APInt(16, 0xf0f0).reverseBits()); |
| EXPECT_EQ(0xf0f0, APInt(16, 0x0f0f).reverseBits()); |
| |
| EXPECT_EQ(0x0f0f0f0f, APInt(32, 0xf0f0f0f0).reverseBits()); |
| EXPECT_EQ(0xf0f0f0f0, APInt(32, 0x0f0f0f0f).reverseBits()); |
| |
| EXPECT_EQ(0x402880a0 >> 1, APInt(31, 0x05011402).reverseBits()); |
| |
| EXPECT_EQ(0x0f0f0f0f, APInt(32, 0xf0f0f0f0).reverseBits()); |
| EXPECT_EQ(0xf0f0f0f0, APInt(32, 0x0f0f0f0f).reverseBits()); |
| |
| EXPECT_EQ(0x0f0f0f0f0f0f0f0f, APInt(64, 0xf0f0f0f0f0f0f0f0).reverseBits()); |
| EXPECT_EQ(0xf0f0f0f0f0f0f0f0, APInt(64, 0x0f0f0f0f0f0f0f0f).reverseBits()); |
| |
| for (unsigned N : { 1, 8, 16, 24, 31, 32, 33, |
| 63, 64, 65, 127, 128, 257, 1024 }) { |
| for (unsigned I = 0; I < N; ++I) { |
| APInt X = APInt::getOneBitSet(N, I); |
| APInt Y = APInt::getOneBitSet(N, N - (I + 1)); |
| EXPECT_EQ(Y, X.reverseBits()); |
| EXPECT_EQ(X, Y.reverseBits()); |
| } |
| } |
| } |
| |
| TEST(APIntTest, insertBits) { |
| APInt iSrc(31, 0x00123456); |
| |
| // Direct copy. |
| APInt i31(31, 0x76543210ull); |
| i31.insertBits(iSrc, 0); |
| EXPECT_EQ(static_cast<int64_t>(0x00123456ull), i31.getSExtValue()); |
| |
| // Single word src/dst insertion. |
| APInt i63(63, 0x01234567FFFFFFFFull); |
| i63.insertBits(iSrc, 4); |
| EXPECT_EQ(static_cast<int64_t>(0x012345600123456Full), i63.getSExtValue()); |
| |
| // Insert single word src into one word of dst. |
| APInt i120(120, UINT64_MAX, true); |
| i120.insertBits(iSrc, 8); |
| EXPECT_EQ(static_cast<int64_t>(0xFFFFFF80123456FFull), i120.getSExtValue()); |
| |
| // Insert single word src into two words of dst. |
| APInt i127(127, UINT64_MAX, true); |
| i127.insertBits(iSrc, 48); |
| EXPECT_EQ(i127.extractBits(64, 0).getZExtValue(), 0x3456FFFFFFFFFFFFull); |
| EXPECT_EQ(i127.extractBits(63, 64).getZExtValue(), 0x7FFFFFFFFFFF8012ull); |
| |
| // Insert on word boundaries. |
| APInt i128(128, 0); |
| i128.insertBits(APInt(64, UINT64_MAX, true), 0); |
| i128.insertBits(APInt(64, UINT64_MAX, true), 64); |
| EXPECT_EQ(-1, i128.getSExtValue()); |
| |
| APInt i256(256, UINT64_MAX, true); |
| i256.insertBits(APInt(65, 0), 0); |
| i256.insertBits(APInt(69, 0), 64); |
| i256.insertBits(APInt(128, 0), 128); |
| EXPECT_EQ(0u, i256.getSExtValue()); |
| |
| APInt i257(257, 0); |
| i257.insertBits(APInt(96, UINT64_MAX, true), 64); |
| EXPECT_EQ(i257.extractBits(64, 0).getZExtValue(), 0x0000000000000000ull); |
| EXPECT_EQ(i257.extractBits(64, 64).getZExtValue(), 0xFFFFFFFFFFFFFFFFull); |
| EXPECT_EQ(i257.extractBits(64, 128).getZExtValue(), 0x00000000FFFFFFFFull); |
| EXPECT_EQ(i257.extractBits(65, 192).getZExtValue(), 0x0000000000000000ull); |
| |
| // General insertion. |
| APInt i260(260, UINT64_MAX, true); |
| i260.insertBits(APInt(129, 1ull << 48), 15); |
| EXPECT_EQ(i260.extractBits(64, 0).getZExtValue(), 0x8000000000007FFFull); |
| EXPECT_EQ(i260.extractBits(64, 64).getZExtValue(), 0x0000000000000000ull); |
| EXPECT_EQ(i260.extractBits(64, 128).getZExtValue(), 0xFFFFFFFFFFFF0000ull); |
| EXPECT_EQ(i260.extractBits(64, 192).getZExtValue(), 0xFFFFFFFFFFFFFFFFull); |
| EXPECT_EQ(i260.extractBits(4, 256).getZExtValue(), 0x000000000000000Full); |
| } |
| |
| TEST(APIntTest, extractBits) { |
| APInt i32(32, 0x1234567); |
| EXPECT_EQ(0x3456, i32.extractBits(16, 4)); |
| |
| APInt i257(257, 0xFFFFFFFFFF0000FFull, true); |
| EXPECT_EQ(0xFFu, i257.extractBits(16, 0)); |
| EXPECT_EQ((0xFFu >> 1), i257.extractBits(16, 1)); |
| EXPECT_EQ(-1, i257.extractBits(32, 64).getSExtValue()); |
| EXPECT_EQ(-1, i257.extractBits(128, 128).getSExtValue()); |
| EXPECT_EQ(-1, i257.extractBits(66, 191).getSExtValue()); |
| EXPECT_EQ(static_cast<int64_t>(0xFFFFFFFFFF80007Full), |
| i257.extractBits(128, 1).getSExtValue()); |
| EXPECT_EQ(static_cast<int64_t>(0xFFFFFFFFFF80007Full), |
| i257.extractBits(129, 1).getSExtValue()); |
| |
| EXPECT_EQ(APInt(48, 0), |
| APInt(144, "281474976710655", 10).extractBits(48, 48)); |
| EXPECT_EQ(APInt(48, 0x0000ffffffffffffull), |
| APInt(144, "281474976710655", 10).extractBits(48, 0)); |
| EXPECT_EQ(APInt(48, 0x00007fffffffffffull), |
| APInt(144, "281474976710655", 10).extractBits(48, 1)); |
| } |
| |
| TEST(APIntTest, getLowBitsSet) { |
| APInt i128lo64 = APInt::getLowBitsSet(128, 64); |
| EXPECT_EQ(0u, i128lo64.countLeadingOnes()); |
| EXPECT_EQ(64u, i128lo64.countLeadingZeros()); |
| EXPECT_EQ(64u, i128lo64.getActiveBits()); |
| EXPECT_EQ(0u, i128lo64.countTrailingZeros()); |
| EXPECT_EQ(64u, i128lo64.countTrailingOnes()); |
| EXPECT_EQ(64u, i128lo64.countPopulation()); |
| } |
| |
| TEST(APIntTest, getBitsSet) { |
| APInt i64hi1lo1 = APInt::getBitsSet(64, 1, 63); |
| EXPECT_EQ(0u, i64hi1lo1.countLeadingOnes()); |
| EXPECT_EQ(1u, i64hi1lo1.countLeadingZeros()); |
| EXPECT_EQ(63u, i64hi1lo1.getActiveBits()); |
| EXPECT_EQ(1u, i64hi1lo1.countTrailingZeros()); |
| EXPECT_EQ(0u, i64hi1lo1.countTrailingOnes()); |
| EXPECT_EQ(62u, i64hi1lo1.countPopulation()); |
| |
| APInt i127hi1lo1 = APInt::getBitsSet(127, 1, 126); |
| EXPECT_EQ(0u, i127hi1lo1.countLeadingOnes()); |
| EXPECT_EQ(1u, i127hi1lo1.countLeadingZeros()); |
| EXPECT_EQ(126u, i127hi1lo1.getActiveBits()); |
| EXPECT_EQ(1u, i127hi1lo1.countTrailingZeros()); |
| EXPECT_EQ(0u, i127hi1lo1.countTrailingOnes()); |
| EXPECT_EQ(125u, i127hi1lo1.countPopulation()); |
| } |
| |
| TEST(APIntTest, getHighBitsSet) { |
| APInt i64hi32 = APInt::getHighBitsSet(64, 32); |
| EXPECT_EQ(32u, i64hi32.countLeadingOnes()); |
| EXPECT_EQ(0u, i64hi32.countLeadingZeros()); |
| EXPECT_EQ(64u, i64hi32.getActiveBits()); |
| EXPECT_EQ(32u, i64hi32.countTrailingZeros()); |
| EXPECT_EQ(0u, i64hi32.countTrailingOnes()); |
| EXPECT_EQ(32u, i64hi32.countPopulation()); |
| } |
| |
| TEST(APIntTest, getBitsSetFrom) { |
| APInt i64hi31 = APInt::getBitsSetFrom(64, 33); |
| EXPECT_EQ(31u, i64hi31.countLeadingOnes()); |
| EXPECT_EQ(0u, i64hi31.countLeadingZeros()); |
| EXPECT_EQ(64u, i64hi31.getActiveBits()); |
| EXPECT_EQ(33u, i64hi31.countTrailingZeros()); |
| EXPECT_EQ(0u, i64hi31.countTrailingOnes()); |
| EXPECT_EQ(31u, i64hi31.countPopulation()); |
| } |
| |
| TEST(APIntTest, setLowBits) { |
| APInt i64lo32(64, 0); |
| i64lo32.setLowBits(32); |
| EXPECT_EQ(0u, i64lo32.countLeadingOnes()); |
| EXPECT_EQ(32u, i64lo32.countLeadingZeros()); |
| EXPECT_EQ(32u, i64lo32.getActiveBits()); |
| EXPECT_EQ(0u, i64lo32.countTrailingZeros()); |
| EXPECT_EQ(32u, i64lo32.countTrailingOnes()); |
| EXPECT_EQ(32u, i64lo32.countPopulation()); |
| |
| APInt i128lo64(128, 0); |
| i128lo64.setLowBits(64); |
| EXPECT_EQ(0u, i128lo64.countLeadingOnes()); |
| EXPECT_EQ(64u, i128lo64.countLeadingZeros()); |
| EXPECT_EQ(64u, i128lo64.getActiveBits()); |
| EXPECT_EQ(0u, i128lo64.countTrailingZeros()); |
| EXPECT_EQ(64u, i128lo64.countTrailingOnes()); |
| EXPECT_EQ(64u, i128lo64.countPopulation()); |
| |
| APInt i128lo24(128, 0); |
| i128lo24.setLowBits(24); |
| EXPECT_EQ(0u, i128lo24.countLeadingOnes()); |
| EXPECT_EQ(104u, i128lo24.countLeadingZeros()); |
| EXPECT_EQ(24u, i128lo24.getActiveBits()); |
| EXPECT_EQ(0u, i128lo24.countTrailingZeros()); |
| EXPECT_EQ(24u, i128lo24.countTrailingOnes()); |
| EXPECT_EQ(24u, i128lo24.countPopulation()); |
| |
| APInt i128lo104(128, 0); |
| i128lo104.setLowBits(104); |
| EXPECT_EQ(0u, i128lo104.countLeadingOnes()); |
| EXPECT_EQ(24u, i128lo104.countLeadingZeros()); |
| EXPECT_EQ(104u, i128lo104.getActiveBits()); |
| EXPECT_EQ(0u, i128lo104.countTrailingZeros()); |
| EXPECT_EQ(104u, i128lo104.countTrailingOnes()); |
| EXPECT_EQ(104u, i128lo104.countPopulation()); |
| |
| APInt i128lo0(128, 0); |
| i128lo0.setLowBits(0); |
| EXPECT_EQ(0u, i128lo0.countLeadingOnes()); |
| EXPECT_EQ(128u, i128lo0.countLeadingZeros()); |
| EXPECT_EQ(0u, i128lo0.getActiveBits()); |
| EXPECT_EQ(128u, i128lo0.countTrailingZeros()); |
| EXPECT_EQ(0u, i128lo0.countTrailingOnes()); |
| EXPECT_EQ(0u, i128lo0.countPopulation()); |
| |
| APInt i80lo79(80, 0); |
| i80lo79.setLowBits(79); |
| EXPECT_EQ(0u, i80lo79.countLeadingOnes()); |
| EXPECT_EQ(1u, i80lo79.countLeadingZeros()); |
| EXPECT_EQ(79u, i80lo79.getActiveBits()); |
| EXPECT_EQ(0u, i80lo79.countTrailingZeros()); |
| EXPECT_EQ(79u, i80lo79.countTrailingOnes()); |
| EXPECT_EQ(79u, i80lo79.countPopulation()); |
| } |
| |
| TEST(APIntTest, setHighBits) { |
| APInt i64hi32(64, 0); |
| i64hi32.setHighBits(32); |
| EXPECT_EQ(32u, i64hi32.countLeadingOnes()); |
| EXPECT_EQ(0u, i64hi32.countLeadingZeros()); |
| EXPECT_EQ(64u, i64hi32.getActiveBits()); |
| EXPECT_EQ(32u, i64hi32.countTrailingZeros()); |
| EXPECT_EQ(0u, i64hi32.countTrailingOnes()); |
| EXPECT_EQ(32u, i64hi32.countPopulation()); |
| |
| APInt i128hi64(128, 0); |
| i128hi64.setHighBits(64); |
| EXPECT_EQ(64u, i128hi64.countLeadingOnes()); |
| EXPECT_EQ(0u, i128hi64.countLeadingZeros()); |
| EXPECT_EQ(128u, i128hi64.getActiveBits()); |
| EXPECT_EQ(64u, i128hi64.countTrailingZeros()); |
| EXPECT_EQ(0u, i128hi64.countTrailingOnes()); |
| EXPECT_EQ(64u, i128hi64.countPopulation()); |
| |
| APInt i128hi24(128, 0); |
| i128hi24.setHighBits(24); |
| EXPECT_EQ(24u, i128hi24.countLeadingOnes()); |
| EXPECT_EQ(0u, i128hi24.countLeadingZeros()); |
| EXPECT_EQ(128u, i128hi24.getActiveBits()); |
| EXPECT_EQ(104u, i128hi24.countTrailingZeros()); |
| EXPECT_EQ(0u, i128hi24.countTrailingOnes()); |
| EXPECT_EQ(24u, i128hi24.countPopulation()); |
| |
| APInt i128hi104(128, 0); |
| i128hi104.setHighBits(104); |
| EXPECT_EQ(104u, i128hi104.countLeadingOnes()); |
| EXPECT_EQ(0u, i128hi104.countLeadingZeros()); |
| EXPECT_EQ(128u, i128hi104.getActiveBits()); |
| EXPECT_EQ(24u, i128hi104.countTrailingZeros()); |
| EXPECT_EQ(0u, i128hi104.countTrailingOnes()); |
| EXPECT_EQ(104u, i128hi104.countPopulation()); |
| |
| APInt i128hi0(128, 0); |
| i128hi0.setHighBits(0); |
| EXPECT_EQ(0u, i128hi0.countLeadingOnes()); |
| EXPECT_EQ(128u, i128hi0.countLeadingZeros()); |
| EXPECT_EQ(0u, i128hi0.getActiveBits()); |
| EXPECT_EQ(128u, i128hi0.countTrailingZeros()); |
| EXPECT_EQ(0u, i128hi0.countTrailingOnes()); |
| EXPECT_EQ(0u, i128hi0.countPopulation()); |
| |
| APInt i80hi1(80, 0); |
| i80hi1.setHighBits(1); |
| EXPECT_EQ(1u, i80hi1.countLeadingOnes()); |
| EXPECT_EQ(0u, i80hi1.countLeadingZeros()); |
| EXPECT_EQ(80u, i80hi1.getActiveBits()); |
| EXPECT_EQ(79u, i80hi1.countTrailingZeros()); |
| EXPECT_EQ(0u, i80hi1.countTrailingOnes()); |
| EXPECT_EQ(1u, i80hi1.countPopulation()); |
| |
| APInt i32hi16(32, 0); |
| i32hi16.setHighBits(16); |
| EXPECT_EQ(16u, i32hi16.countLeadingOnes()); |
| EXPECT_EQ(0u, i32hi16.countLeadingZeros()); |
| EXPECT_EQ(32u, i32hi16.getActiveBits()); |
| EXPECT_EQ(16u, i32hi16.countTrailingZeros()); |
| EXPECT_EQ(0u, i32hi16.countTrailingOnes()); |
| EXPECT_EQ(16u, i32hi16.countPopulation()); |
| } |
| |
| TEST(APIntTest, setBitsFrom) { |
| APInt i64from63(64, 0); |
| i64from63.setBitsFrom(63); |
| EXPECT_EQ(1u, i64from63.countLeadingOnes()); |
| EXPECT_EQ(0u, i64from63.countLeadingZeros()); |
| EXPECT_EQ(64u, i64from63.getActiveBits()); |
| EXPECT_EQ(63u, i64from63.countTrailingZeros()); |
| EXPECT_EQ(0u, i64from63.countTrailingOnes()); |
| EXPECT_EQ(1u, i64from63.countPopulation()); |
| } |
| |
| TEST(APIntTest, setAllBits) { |
| APInt i32(32, 0); |
| i32.setAllBits(); |
| EXPECT_EQ(32u, i32.countLeadingOnes()); |
| EXPECT_EQ(0u, i32.countLeadingZeros()); |
| EXPECT_EQ(32u, i32.getActiveBits()); |
| EXPECT_EQ(0u, i32.countTrailingZeros()); |
| EXPECT_EQ(32u, i32.countTrailingOnes()); |
| EXPECT_EQ(32u, i32.countPopulation()); |
| |
| APInt i64(64, 0); |
| i64.setAllBits(); |
| EXPECT_EQ(64u, i64.countLeadingOnes()); |
| EXPECT_EQ(0u, i64.countLeadingZeros()); |
| EXPECT_EQ(64u, i64.getActiveBits()); |
| EXPECT_EQ(0u, i64.countTrailingZeros()); |
| EXPECT_EQ(64u, i64.countTrailingOnes()); |
| EXPECT_EQ(64u, i64.countPopulation()); |
| |
| APInt i96(96, 0); |
| i96.setAllBits(); |
| EXPECT_EQ(96u, i96.countLeadingOnes()); |
| EXPECT_EQ(0u, i96.countLeadingZeros()); |
| EXPECT_EQ(96u, i96.getActiveBits()); |
| EXPECT_EQ(0u, i96.countTrailingZeros()); |
| EXPECT_EQ(96u, i96.countTrailingOnes()); |
| EXPECT_EQ(96u, i96.countPopulation()); |
| |
| APInt i128(128, 0); |
| i128.setAllBits(); |
| EXPECT_EQ(128u, i128.countLeadingOnes()); |
| EXPECT_EQ(0u, i128.countLeadingZeros()); |
| EXPECT_EQ(128u, i128.getActiveBits()); |
| EXPECT_EQ(0u, i128.countTrailingZeros()); |
| EXPECT_EQ(128u, i128.countTrailingOnes()); |
| EXPECT_EQ(128u, i128.countPopulation()); |
| } |
| |
| TEST(APIntTest, getLoBits) { |
| APInt i32(32, 0xfa); |
| i32.setHighBits(1); |
| EXPECT_EQ(0xa, i32.getLoBits(4)); |
| APInt i128(128, 0xfa); |
| i128.setHighBits(1); |
| EXPECT_EQ(0xa, i128.getLoBits(4)); |
| } |
| |
| TEST(APIntTest, getHiBits) { |
| APInt i32(32, 0xfa); |
| i32.setHighBits(2); |
| EXPECT_EQ(0xc, i32.getHiBits(4)); |
| APInt i128(128, 0xfa); |
| i128.setHighBits(2); |
| EXPECT_EQ(0xc, i128.getHiBits(4)); |
| } |
| |
| TEST(APIntTest, GCD) { |
| using APIntOps::GreatestCommonDivisor; |
| |
| for (unsigned Bits : {1, 2, 32, 63, 64, 65}) { |
| // Test some corner cases near zero. |
| APInt Zero(Bits, 0), One(Bits, 1); |
| EXPECT_EQ(GreatestCommonDivisor(Zero, Zero), Zero); |
| EXPECT_EQ(GreatestCommonDivisor(Zero, One), One); |
| EXPECT_EQ(GreatestCommonDivisor(One, Zero), One); |
| EXPECT_EQ(GreatestCommonDivisor(One, One), One); |
| |
| if (Bits > 1) { |
| APInt Two(Bits, 2); |
| EXPECT_EQ(GreatestCommonDivisor(Zero, Two), Two); |
| EXPECT_EQ(GreatestCommonDivisor(One, Two), One); |
| EXPECT_EQ(GreatestCommonDivisor(Two, Two), Two); |
| |
| // Test some corner cases near the highest representable value. |
| APInt Max(Bits, 0); |
| Max.setAllBits(); |
| EXPECT_EQ(GreatestCommonDivisor(Zero, Max), Max); |
| EXPECT_EQ(GreatestCommonDivisor(One, Max), One); |
| EXPECT_EQ(GreatestCommonDivisor(Two, Max), One); |
| EXPECT_EQ(GreatestCommonDivisor(Max, Max), Max); |
| |
| APInt MaxOver2 = Max.udiv(Two); |
| EXPECT_EQ(GreatestCommonDivisor(MaxOver2, Max), One); |
| // Max - 1 == Max / 2 * 2, because Max is odd. |
| EXPECT_EQ(GreatestCommonDivisor(MaxOver2, Max - 1), MaxOver2); |
| } |
| } |
| |
| // Compute the 20th Mersenne prime. |
| const unsigned BitWidth = 4450; |
| APInt HugePrime = APInt::getLowBitsSet(BitWidth, 4423); |
| |
| // 9931 and 123456 are coprime. |
| APInt A = HugePrime * APInt(BitWidth, 9931); |
| APInt B = HugePrime * APInt(BitWidth, 123456); |
| APInt C = GreatestCommonDivisor(A, B); |
| EXPECT_EQ(C, HugePrime); |
| } |
| |
| TEST(APIntTest, LogicalRightShift) { |
| APInt i256(APInt::getHighBitsSet(256, 2)); |
| |
| i256.lshrInPlace(1); |
| EXPECT_EQ(1U, i256.countLeadingZeros()); |
| EXPECT_EQ(253U, i256.countTrailingZeros()); |
| EXPECT_EQ(2U, i256.countPopulation()); |
| |
| i256.lshrInPlace(62); |
| EXPECT_EQ(63U, i256.countLeadingZeros()); |
| EXPECT_EQ(191U, i256.countTrailingZeros()); |
| EXPECT_EQ(2U, i256.countPopulation()); |
| |
| i256.lshrInPlace(65); |
| EXPECT_EQ(128U, i256.countLeadingZeros()); |
| EXPECT_EQ(126U, i256.countTrailingZeros()); |
| EXPECT_EQ(2U, i256.countPopulation()); |
| |
| i256.lshrInPlace(64); |
| EXPECT_EQ(192U, i256.countLeadingZeros()); |
| EXPECT_EQ(62U, i256.countTrailingZeros()); |
| EXPECT_EQ(2U, i256.countPopulation()); |
| |
| i256.lshrInPlace(63); |
| EXPECT_EQ(255U, i256.countLeadingZeros()); |
| EXPECT_EQ(0U, i256.countTrailingZeros()); |
| EXPECT_EQ(1U, i256.countPopulation()); |
| |
| // Ensure we handle large shifts of multi-word. |
| const APInt neg_one(128, static_cast<uint64_t>(-1), true); |
| EXPECT_EQ(0, neg_one.lshr(128)); |
| } |
| |
| TEST(APIntTest, ArithmeticRightShift) { |
| APInt i72(APInt::getHighBitsSet(72, 1)); |
| i72.ashrInPlace(46); |
| EXPECT_EQ(47U, i72.countLeadingOnes()); |
| EXPECT_EQ(25U, i72.countTrailingZeros()); |
| EXPECT_EQ(47U, i72.countPopulation()); |
| |
| i72 = APInt::getHighBitsSet(72, 1); |
| i72.ashrInPlace(64); |
| EXPECT_EQ(65U, i72.countLeadingOnes()); |
| EXPECT_EQ(7U, i72.countTrailingZeros()); |
| EXPECT_EQ(65U, i72.countPopulation()); |
| |
| APInt i128(APInt::getHighBitsSet(128, 1)); |
| i128.ashrInPlace(64); |
| EXPECT_EQ(65U, i128.countLeadingOnes()); |
| EXPECT_EQ(63U, i128.countTrailingZeros()); |
| EXPECT_EQ(65U, i128.countPopulation()); |
| |
| // Ensure we handle large shifts of multi-word. |
| const APInt signmin32(APInt::getSignedMinValue(32)); |
| EXPECT_TRUE(signmin32.ashr(32).isAllOnesValue()); |
| |
| // Ensure we handle large shifts of multi-word. |
| const APInt umax32(APInt::getSignedMaxValue(32)); |
| EXPECT_EQ(0, umax32.ashr(32)); |
| |
| // Ensure we handle large shifts of multi-word. |
| const APInt signmin128(APInt::getSignedMinValue(128)); |
| EXPECT_TRUE(signmin128.ashr(128).isAllOnesValue()); |
| |
| // Ensure we handle large shifts of multi-word. |
| const APInt umax128(APInt::getSignedMaxValue(128)); |
| EXPECT_EQ(0, umax128.ashr(128)); |
| } |
| |
| TEST(APIntTest, LeftShift) { |
| APInt i256(APInt::getLowBitsSet(256, 2)); |
| |
| i256 <<= 1; |
| EXPECT_EQ(253U, i256.countLeadingZeros()); |
| EXPECT_EQ(1U, i256.countTrailingZeros()); |
| EXPECT_EQ(2U, i256.countPopulation()); |
| |
| i256 <<= 62; |
| EXPECT_EQ(191U, i256.countLeadingZeros()); |
| EXPECT_EQ(63U, i256.countTrailingZeros()); |
| EXPECT_EQ(2U, i256.countPopulation()); |
| |
| i256 <<= 65; |
| EXPECT_EQ(126U, i256.countLeadingZeros()); |
| EXPECT_EQ(128U, i256.countTrailingZeros()); |
| EXPECT_EQ(2U, i256.countPopulation()); |
| |
| i256 <<= 64; |
| EXPECT_EQ(62U, i256.countLeadingZeros()); |
| EXPECT_EQ(192U, i256.countTrailingZeros()); |
| EXPECT_EQ(2U, i256.countPopulation()); |
| |
| i256 <<= 63; |
| EXPECT_EQ(0U, i256.countLeadingZeros()); |
| EXPECT_EQ(255U, i256.countTrailingZeros()); |
| EXPECT_EQ(1U, i256.countPopulation()); |
| |
| // Ensure we handle large shifts of multi-word. |
| const APInt neg_one(128, static_cast<uint64_t>(-1), true); |
| EXPECT_EQ(0, neg_one.shl(128)); |
| } |
| |
| TEST(APIntTest, isSubsetOf) { |
| APInt i32_1(32, 1); |
| APInt i32_2(32, 2); |
| APInt i32_3(32, 3); |
| EXPECT_FALSE(i32_3.isSubsetOf(i32_1)); |
| EXPECT_TRUE(i32_1.isSubsetOf(i32_3)); |
| EXPECT_FALSE(i32_2.isSubsetOf(i32_1)); |
| EXPECT_FALSE(i32_1.isSubsetOf(i32_2)); |
| EXPECT_TRUE(i32_3.isSubsetOf(i32_3)); |
| |
| APInt i128_1(128, 1); |
| APInt i128_2(128, 2); |
| APInt i128_3(128, 3); |
| EXPECT_FALSE(i128_3.isSubsetOf(i128_1)); |
| EXPECT_TRUE(i128_1.isSubsetOf(i128_3)); |
| EXPECT_FALSE(i128_2.isSubsetOf(i128_1)); |
| EXPECT_FALSE(i128_1.isSubsetOf(i128_2)); |
| EXPECT_TRUE(i128_3.isSubsetOf(i128_3)); |
| |
| i128_1 <<= 64; |
| i128_2 <<= 64; |
| i128_3 <<= 64; |
| EXPECT_FALSE(i128_3.isSubsetOf(i128_1)); |
| EXPECT_TRUE(i128_1.isSubsetOf(i128_3)); |
| EXPECT_FALSE(i128_2.isSubsetOf(i128_1)); |
| EXPECT_FALSE(i128_1.isSubsetOf(i128_2)); |
| EXPECT_TRUE(i128_3.isSubsetOf(i128_3)); |
| } |
| |
| TEST(APIntTest, sext) { |
| EXPECT_EQ(0, APInt(1, 0).sext(64)); |
| EXPECT_EQ(~uint64_t(0), APInt(1, 1).sext(64)); |
| |
| APInt i32_max(APInt::getSignedMaxValue(32).sext(63)); |
| EXPECT_EQ(32U, i32_max.countLeadingZeros()); |
| EXPECT_EQ(0U, i32_max.countTrailingZeros()); |
| EXPECT_EQ(31U, i32_max.countPopulation()); |
| |
| APInt i32_min(APInt::getSignedMinValue(32).sext(63)); |
| EXPECT_EQ(32U, i32_min.countLeadingOnes()); |
| EXPECT_EQ(31U, i32_min.countTrailingZeros()); |
| EXPECT_EQ(32U, i32_min.countPopulation()); |
| |
| APInt i32_neg1(APInt(32, ~uint64_t(0)).sext(63)); |
| EXPECT_EQ(63U, i32_neg1.countLeadingOnes()); |
| EXPECT_EQ(0U, i32_neg1.countTrailingZeros()); |
| EXPECT_EQ(63U, i32_neg1.countPopulation()); |
| } |
| |
| TEST(APIntTest, multiply) { |
| APInt i64(64, 1234); |
| |
| EXPECT_EQ(7006652, i64 * 5678); |
| EXPECT_EQ(7006652, 5678 * i64); |
| |
| APInt i128 = APInt::getOneBitSet(128, 64); |
| APInt i128_1234(128, 1234); |
| i128_1234 <<= 64; |
| EXPECT_EQ(i128_1234, i128 * 1234); |
| EXPECT_EQ(i128_1234, 1234 * i128); |
| |
| APInt i96 = APInt::getOneBitSet(96, 64); |
| i96 *= ~0ULL; |
| EXPECT_EQ(32U, i96.countLeadingOnes()); |
| EXPECT_EQ(32U, i96.countPopulation()); |
| EXPECT_EQ(64U, i96.countTrailingZeros()); |
| } |
| |
| TEST(APIntTest, RoundingUDiv) { |
| for (uint64_t Ai = 1; Ai <= 255; Ai++) { |
| APInt A(8, Ai); |
| APInt Zero(8, 0); |
| EXPECT_EQ(0, APIntOps::RoundingUDiv(Zero, A, APInt::Rounding::UP)); |
| EXPECT_EQ(0, APIntOps::RoundingUDiv(Zero, A, APInt::Rounding::DOWN)); |
| EXPECT_EQ(0, APIntOps::RoundingUDiv(Zero, A, APInt::Rounding::TOWARD_ZERO)); |
| |
| for (uint64_t Bi = 1; Bi <= 255; Bi++) { |
| APInt B(8, Bi); |
| { |
| APInt Quo = APIntOps::RoundingUDiv(A, B, APInt::Rounding::UP); |
| auto Prod = Quo.zext(16) * B.zext(16); |
| EXPECT_TRUE(Prod.uge(Ai)); |
| if (Prod.ugt(Ai)) { |
| EXPECT_TRUE(((Quo - 1).zext(16) * B.zext(16)).ult(Ai)); |
| } |
| } |
| { |
| APInt Quo = A.udiv(B); |
| EXPECT_EQ(Quo, APIntOps::RoundingUDiv(A, B, APInt::Rounding::TOWARD_ZERO)); |
| EXPECT_EQ(Quo, APIntOps::RoundingUDiv(A, B, APInt::Rounding::DOWN)); |
| } |
| } |
| } |
| } |
| |
| TEST(APIntTest, RoundingSDiv) { |
| for (int64_t Ai = -128; Ai <= 127; Ai++) { |
| APInt A(8, Ai); |
| |
| if (Ai != 0) { |
| APInt Zero(8, 0); |
| EXPECT_EQ(0, APIntOps::RoundingSDiv(Zero, A, APInt::Rounding::UP)); |
| EXPECT_EQ(0, APIntOps::RoundingSDiv(Zero, A, APInt::Rounding::DOWN)); |
| EXPECT_EQ(0, APIntOps::RoundingSDiv(Zero, A, APInt::Rounding::TOWARD_ZERO)); |
| } |
| |
| for (uint64_t Bi = -128; Bi <= 127; Bi++) { |
| if (Bi == 0) |
| continue; |
| |
| APInt B(8, Bi); |
| { |
| APInt Quo = APIntOps::RoundingSDiv(A, B, APInt::Rounding::UP); |
| auto Prod = Quo.sext(16) * B.sext(16); |
| EXPECT_TRUE(Prod.uge(A)); |
| if (Prod.ugt(A)) { |
| EXPECT_TRUE(((Quo - 1).sext(16) * B.sext(16)).ult(A)); |
| } |
| } |
| { |
| APInt Quo = APIntOps::RoundingSDiv(A, B, APInt::Rounding::DOWN); |
| auto Prod = Quo.sext(16) * B.sext(16); |
| EXPECT_TRUE(Prod.ule(A)); |
| if (Prod.ult(A)) { |
| EXPECT_TRUE(((Quo + 1).sext(16) * B.sext(16)).ugt(A)); |
| } |
| } |
| { |
| APInt Quo = A.sdiv(B); |
| EXPECT_EQ(Quo, APIntOps::RoundingSDiv(A, B, APInt::Rounding::TOWARD_ZERO)); |
| } |
| } |
| } |
| } |
| |
| } // end anonymous namespace |
