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llvm-mirror/unittests/ADT/APIntTest.cpp
Craig Topper 58e7d0ffdd [APInt] Add a public typedef for the internal type of APInt use it instead of integerPart. Make APINT_BITS_PER_WORD and APINT_WORD_SIZE public.
This patch is one step to attempt to unify the main APInt interface and the tc functions used by APFloat.

This patch adds a WordType to APInt and uses that in all the tc functions. I've added temporary typedefs to APFloat to alias it to integerPart to keep the patch size down. I'll work on removing that in a future patch.

In future patches I hope to reuse the tc functions to implement some of the main APInt functionality.

I may remove APINT_ from BITS_PER_WORD and WORD_SIZE constants so that we don't have the repetitive APInt::APINT_ externally.

Differential Revision: https://reviews.llvm.org/D31523

llvm-svn: 299341
2017-04-02 19:17:22 +00:00

1979 lines
63 KiB
C++

//===- 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(zero, one.ashr(1));
// Rotates.
EXPECT_EQ(one, one.rotl(0));
EXPECT_EQ(one, one.rotl(1));
EXPECT_EQ(one, one.rotr(0));
EXPECT_EQ(one, one.rotr(1));
// Multiplies.
EXPECT_EQ(neg_one, neg_one * one);
EXPECT_EQ(neg_one, one * neg_one);
EXPECT_EQ(one, neg_one * neg_one);
EXPECT_EQ(one, one * one);
// Divides.
EXPECT_EQ(neg_one, one.sdiv(neg_one));
EXPECT_EQ(neg_one, neg_one.sdiv(one));
EXPECT_EQ(one, neg_one.sdiv(neg_one));
EXPECT_EQ(one, one.sdiv(one));
EXPECT_EQ(neg_one, one.udiv(neg_one));
EXPECT_EQ(neg_one, neg_one.udiv(one));
EXPECT_EQ(one, neg_one.udiv(neg_one));
EXPECT_EQ(one, one.udiv(one));
// Remainders.
EXPECT_EQ(zero, neg_one.srem(one));
EXPECT_EQ(zero, neg_one.urem(one));
EXPECT_EQ(zero, one.srem(neg_one));
// sdivrem
{
APInt q(8, 0);
APInt r(8, 0);
APInt one(8, 1);
APInt two(8, 2);
APInt nine(8, 9);
APInt four(8, 4);
EXPECT_EQ(nine.srem(two), one);
EXPECT_EQ(nine.srem(-two), one);
EXPECT_EQ((-nine).srem(two), -one);
EXPECT_EQ((-nine).srem(-two), -one);
APInt::sdivrem(nine, two, q, r);
EXPECT_EQ(four, q);
EXPECT_EQ(one, r);
APInt::sdivrem(-nine, two, q, r);
EXPECT_EQ(-four, q);
EXPECT_EQ(-one, r);
APInt::sdivrem(nine, -two, q, r);
EXPECT_EQ(-four, q);
EXPECT_EQ(one, r);
APInt::sdivrem(-nine, -two, q, r);
EXPECT_EQ(four, q);
EXPECT_EQ(-one, r);
}
}
TEST(APIntTest, compare) {
std::array<APInt, 5> testVals{{
APInt{16, 2},
APInt{16, 1},
APInt{16, 0},
APInt{16, (uint64_t)-1, true},
APInt{16, (uint64_t)-2, true},
}};
for (auto &arg1 : testVals)
for (auto &arg2 : testVals) {
auto uv1 = arg1.getZExtValue();
auto uv2 = arg2.getZExtValue();
auto sv1 = arg1.getSExtValue();
auto sv2 = arg2.getSExtValue();
EXPECT_EQ(uv1 < uv2, arg1.ult(arg2));
EXPECT_EQ(uv1 <= uv2, arg1.ule(arg2));
EXPECT_EQ(uv1 > uv2, arg1.ugt(arg2));
EXPECT_EQ(uv1 >= uv2, arg1.uge(arg2));
EXPECT_EQ(sv1 < sv2, arg1.slt(arg2));
EXPECT_EQ(sv1 <= sv2, arg1.sle(arg2));
EXPECT_EQ(sv1 > sv2, arg1.sgt(arg2));
EXPECT_EQ(sv1 >= sv2, arg1.sge(arg2));
EXPECT_EQ(uv1 < uv2, arg1.ult(uv2));
EXPECT_EQ(uv1 <= uv2, arg1.ule(uv2));
EXPECT_EQ(uv1 > uv2, arg1.ugt(uv2));
EXPECT_EQ(uv1 >= uv2, arg1.uge(uv2));
EXPECT_EQ(sv1 < sv2, arg1.slt(sv2));
EXPECT_EQ(sv1 <= sv2, arg1.sle(sv2));
EXPECT_EQ(sv1 > sv2, arg1.sgt(sv2));
EXPECT_EQ(sv1 >= sv2, arg1.sge(sv2));
}
}
TEST(APIntTest, compareWithRawIntegers) {
EXPECT_TRUE(!APInt(8, 1).uge(256));
EXPECT_TRUE(!APInt(8, 1).ugt(256));
EXPECT_TRUE( APInt(8, 1).ule(256));
EXPECT_TRUE( APInt(8, 1).ult(256));
EXPECT_TRUE(!APInt(8, 1).sge(256));
EXPECT_TRUE(!APInt(8, 1).sgt(256));
EXPECT_TRUE( APInt(8, 1).sle(256));
EXPECT_TRUE( APInt(8, 1).slt(256));
EXPECT_TRUE(!(APInt(8, 0) == 256));
EXPECT_TRUE( APInt(8, 0) != 256);
EXPECT_TRUE(!(APInt(8, 1) == 256));
EXPECT_TRUE( APInt(8, 1) != 256);
auto uint64max = UINT64_MAX;
auto int64max = INT64_MAX;
auto int64min = INT64_MIN;
auto u64 = APInt{128, uint64max};
auto s64 = APInt{128, static_cast<uint64_t>(int64max), true};
auto big = u64 + 1;
EXPECT_TRUE( u64.uge(uint64max));
EXPECT_TRUE(!u64.ugt(uint64max));
EXPECT_TRUE( u64.ule(uint64max));
EXPECT_TRUE(!u64.ult(uint64max));
EXPECT_TRUE( u64.sge(int64max));
EXPECT_TRUE( u64.sgt(int64max));
EXPECT_TRUE(!u64.sle(int64max));
EXPECT_TRUE(!u64.slt(int64max));
EXPECT_TRUE( u64.sge(int64min));
EXPECT_TRUE( u64.sgt(int64min));
EXPECT_TRUE(!u64.sle(int64min));
EXPECT_TRUE(!u64.slt(int64min));
EXPECT_TRUE(u64 == uint64max);
EXPECT_TRUE(u64 != int64max);
EXPECT_TRUE(u64 != int64min);
EXPECT_TRUE(!s64.uge(uint64max));
EXPECT_TRUE(!s64.ugt(uint64max));
EXPECT_TRUE( s64.ule(uint64max));
EXPECT_TRUE( s64.ult(uint64max));
EXPECT_TRUE( s64.sge(int64max));
EXPECT_TRUE(!s64.sgt(int64max));
EXPECT_TRUE( s64.sle(int64max));
EXPECT_TRUE(!s64.slt(int64max));
EXPECT_TRUE( s64.sge(int64min));
EXPECT_TRUE( s64.sgt(int64min));
EXPECT_TRUE(!s64.sle(int64min));
EXPECT_TRUE(!s64.slt(int64min));
EXPECT_TRUE(s64 != uint64max);
EXPECT_TRUE(s64 == int64max);
EXPECT_TRUE(s64 != int64min);
EXPECT_TRUE( big.uge(uint64max));
EXPECT_TRUE( big.ugt(uint64max));
EXPECT_TRUE(!big.ule(uint64max));
EXPECT_TRUE(!big.ult(uint64max));
EXPECT_TRUE( big.sge(int64max));
EXPECT_TRUE( big.sgt(int64max));
EXPECT_TRUE(!big.sle(int64max));
EXPECT_TRUE(!big.slt(int64max));
EXPECT_TRUE( big.sge(int64min));
EXPECT_TRUE( big.sgt(int64min));
EXPECT_TRUE(!big.sle(int64min));
EXPECT_TRUE(!big.slt(int64min));
EXPECT_TRUE(big != uint64max);
EXPECT_TRUE(big != int64max);
EXPECT_TRUE(big != int64min);
}
TEST(APIntTest, compareWithInt64Min) {
int64_t edge = INT64_MIN;
int64_t edgeP1 = edge + 1;
int64_t edgeM1 = INT64_MAX;
auto a = APInt{64, static_cast<uint64_t>(edge), true};
EXPECT_TRUE(!a.slt(edge));
EXPECT_TRUE( a.sle(edge));
EXPECT_TRUE(!a.sgt(edge));
EXPECT_TRUE( a.sge(edge));
EXPECT_TRUE( a.slt(edgeP1));
EXPECT_TRUE( a.sle(edgeP1));
EXPECT_TRUE(!a.sgt(edgeP1));
EXPECT_TRUE(!a.sge(edgeP1));
EXPECT_TRUE( a.slt(edgeM1));
EXPECT_TRUE( a.sle(edgeM1));
EXPECT_TRUE(!a.sgt(edgeM1));
EXPECT_TRUE(!a.sge(edgeM1));
}
TEST(APIntTest, compareWithHalfInt64Max) {
uint64_t edge = 0x4000000000000000;
uint64_t edgeP1 = edge + 1;
uint64_t edgeM1 = edge - 1;
auto a = APInt{64, edge};
EXPECT_TRUE(!a.ult(edge));
EXPECT_TRUE( a.ule(edge));
EXPECT_TRUE(!a.ugt(edge));
EXPECT_TRUE( a.uge(edge));
EXPECT_TRUE( a.ult(edgeP1));
EXPECT_TRUE( a.ule(edgeP1));
EXPECT_TRUE(!a.ugt(edgeP1));
EXPECT_TRUE(!a.uge(edgeP1));
EXPECT_TRUE(!a.ult(edgeM1));
EXPECT_TRUE(!a.ule(edgeM1));
EXPECT_TRUE( a.ugt(edgeM1));
EXPECT_TRUE( a.uge(edgeM1));
EXPECT_TRUE(!a.slt(edge));
EXPECT_TRUE( a.sle(edge));
EXPECT_TRUE(!a.sgt(edge));
EXPECT_TRUE( a.sge(edge));
EXPECT_TRUE( a.slt(edgeP1));
EXPECT_TRUE( a.sle(edgeP1));
EXPECT_TRUE(!a.sgt(edgeP1));
EXPECT_TRUE(!a.sge(edgeP1));
EXPECT_TRUE(!a.slt(edgeM1));
EXPECT_TRUE(!a.sle(edgeM1));
EXPECT_TRUE( a.sgt(edgeM1));
EXPECT_TRUE( a.sge(edgeM1));
}
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});
}
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(APIntOps::isMask(APInt(32, 0x01010101)));
EXPECT_FALSE(APIntOps::isMask(APInt(32, 0xf0000000)));
EXPECT_FALSE(APIntOps::isMask(APInt(32, 0xffff0000)));
EXPECT_FALSE(APIntOps::isMask(APInt(32, 0xff << 1)));
for (int N : { 1, 2, 3, 4, 7, 8, 16, 32, 64, 127, 128, 129, 256 }) {
EXPECT_FALSE(APIntOps::isMask(APInt(N, 0)));
APInt One(N, 1);
for (int I = 1; I <= N; ++I) {
APInt MaskVal = One.shl(I) - 1;
EXPECT_TRUE(APIntOps::isMask(MaskVal));
}
}
}
TEST(APIntTest, isShiftedMask) {
EXPECT_FALSE(APIntOps::isShiftedMask(APInt(32, 0x01010101)));
EXPECT_TRUE(APIntOps::isShiftedMask(APInt(32, 0xf0000000)));
EXPECT_TRUE(APIntOps::isShiftedMask(APInt(32, 0xffff0000)));
EXPECT_TRUE(APIntOps::isShiftedMask(APInt(32, 0xff << 1)));
for (int N : { 1, 2, 3, 4, 7, 8, 16, 32, 64, 127, 128, 129, 256 }) {
EXPECT_FALSE(APIntOps::isShiftedMask(APInt(N, 0)));
APInt One(N, 1);
for (int I = 1; I < N; ++I) {
APInt MaskVal = One.shl(I) - 1;
EXPECT_TRUE(APIntOps::isShiftedMask(MaskVal));
}
for (int I = 1; I < N - 1; ++I) {
APInt MaskVal = One.shl(I);
EXPECT_TRUE(APIntOps::isShiftedMask(MaskVal));
}
for (int I = 1; I < N; ++I) {
APInt MaskVal = APInt::getHighBitsSet(N, I);
EXPECT_TRUE(APIntOps::isShiftedMask(MaskVal));
}
}
}
#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
}
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());
}
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, 63, 1);
EXPECT_EQ(1u, i64hi1lo1.countLeadingOnes());
EXPECT_EQ(0u, i64hi1lo1.countLeadingZeros());
EXPECT_EQ(64u, i64hi1lo1.getActiveBits());
EXPECT_EQ(0u, i64hi1lo1.countTrailingZeros());
EXPECT_EQ(1u, i64hi1lo1.countTrailingOnes());
EXPECT_EQ(2u, i64hi1lo1.countPopulation());
APInt i127hi1lo1 = APInt::getBitsSet(127, 126, 1);
EXPECT_EQ(1u, i127hi1lo1.countLeadingOnes());
EXPECT_EQ(0u, i127hi1lo1.countLeadingZeros());
EXPECT_EQ(127u, i127hi1lo1.getActiveBits());
EXPECT_EQ(0u, i127hi1lo1.countTrailingZeros());
EXPECT_EQ(1u, i127hi1lo1.countTrailingOnes());
EXPECT_EQ(2u, 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));
}