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APIntTest.cpp
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//===- llvm/unittest/ADT/APInt.cpp - APInt unit tests ---------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "llvm/ADT/APInt.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/Twine.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::getZero(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::getAllOnes(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},