+TEST(APIntTest, StringBitsNeeded2) {
+ EXPECT_EQ(1U, APInt::getBitsNeeded( "0", 2));
+ EXPECT_EQ(1U, APInt::getBitsNeeded( "1", 2));
+ EXPECT_EQ(2U, APInt::getBitsNeeded( "10", 2));
+ EXPECT_EQ(2U, APInt::getBitsNeeded( "11", 2));
+ EXPECT_EQ(3U, APInt::getBitsNeeded("100", 2));
+
+ EXPECT_EQ(1U, APInt::getBitsNeeded( "+0", 2));
+ EXPECT_EQ(1U, APInt::getBitsNeeded( "+1", 2));
+ EXPECT_EQ(2U, APInt::getBitsNeeded( "+10", 2));
+ EXPECT_EQ(2U, APInt::getBitsNeeded( "+11", 2));
+ EXPECT_EQ(3U, APInt::getBitsNeeded("+100", 2));
+
+ EXPECT_EQ(2U, APInt::getBitsNeeded( "-0", 2));
+ EXPECT_EQ(2U, APInt::getBitsNeeded( "-1", 2));
+ EXPECT_EQ(3U, APInt::getBitsNeeded( "-10", 2));
+ EXPECT_EQ(3U, APInt::getBitsNeeded( "-11", 2));
+ EXPECT_EQ(4U, APInt::getBitsNeeded("-100", 2));
+}
+
+TEST(APIntTest, StringBitsNeeded8) {
+ EXPECT_EQ(3U, APInt::getBitsNeeded( "0", 8));
+ EXPECT_EQ(3U, APInt::getBitsNeeded( "7", 8));
+ EXPECT_EQ(6U, APInt::getBitsNeeded("10", 8));
+ EXPECT_EQ(6U, APInt::getBitsNeeded("17", 8));
+ EXPECT_EQ(6U, APInt::getBitsNeeded("20", 8));
+
+ EXPECT_EQ(3U, APInt::getBitsNeeded( "+0", 8));
+ EXPECT_EQ(3U, APInt::getBitsNeeded( "+7", 8));
+ EXPECT_EQ(6U, APInt::getBitsNeeded("+10", 8));
+ EXPECT_EQ(6U, APInt::getBitsNeeded("+17", 8));
+ EXPECT_EQ(6U, APInt::getBitsNeeded("+20", 8));
+
+ EXPECT_EQ(4U, APInt::getBitsNeeded( "-0", 8));
+ EXPECT_EQ(4U, APInt::getBitsNeeded( "-7", 8));
+ EXPECT_EQ(7U, APInt::getBitsNeeded("-10", 8));
+ EXPECT_EQ(7U, APInt::getBitsNeeded("-17", 8));
+ EXPECT_EQ(7U, APInt::getBitsNeeded("-20", 8));
+}
+
+TEST(APIntTest, StringBitsNeeded10) {
+ EXPECT_EQ(1U, APInt::getBitsNeeded( "0", 10));
+ EXPECT_EQ(2U, APInt::getBitsNeeded( "3", 10));
+ EXPECT_EQ(4U, APInt::getBitsNeeded( "9", 10));
+ EXPECT_EQ(4U, APInt::getBitsNeeded("10", 10));
+ EXPECT_EQ(5U, APInt::getBitsNeeded("19", 10));
+ EXPECT_EQ(5U, APInt::getBitsNeeded("20", 10));
+
+ EXPECT_EQ(1U, APInt::getBitsNeeded( "+0", 10));
+ EXPECT_EQ(4U, APInt::getBitsNeeded( "+9", 10));
+ EXPECT_EQ(4U, APInt::getBitsNeeded("+10", 10));
+ EXPECT_EQ(5U, APInt::getBitsNeeded("+19", 10));
+ EXPECT_EQ(5U, APInt::getBitsNeeded("+20", 10));
+
+ EXPECT_EQ(2U, APInt::getBitsNeeded( "-0", 10));
+ EXPECT_EQ(5U, APInt::getBitsNeeded( "-9", 10));
+ EXPECT_EQ(5U, APInt::getBitsNeeded("-10", 10));
+ EXPECT_EQ(6U, APInt::getBitsNeeded("-19", 10));
+ EXPECT_EQ(6U, APInt::getBitsNeeded("-20", 10));
+}
+
+TEST(APIntTest, StringBitsNeeded16) {
+ EXPECT_EQ(4U, APInt::getBitsNeeded( "0", 16));
+ EXPECT_EQ(4U, APInt::getBitsNeeded( "F", 16));
+ EXPECT_EQ(8U, APInt::getBitsNeeded("10", 16));
+ EXPECT_EQ(8U, APInt::getBitsNeeded("1F", 16));
+ EXPECT_EQ(8U, APInt::getBitsNeeded("20", 16));
+
+ EXPECT_EQ(4U, APInt::getBitsNeeded( "+0", 16));
+ EXPECT_EQ(4U, APInt::getBitsNeeded( "+F", 16));
+ EXPECT_EQ(8U, APInt::getBitsNeeded("+10", 16));
+ EXPECT_EQ(8U, APInt::getBitsNeeded("+1F", 16));
+ EXPECT_EQ(8U, APInt::getBitsNeeded("+20", 16));
+
+ EXPECT_EQ(5U, APInt::getBitsNeeded( "-0", 16));
+ EXPECT_EQ(5U, APInt::getBitsNeeded( "-F", 16));
+ EXPECT_EQ(9U, APInt::getBitsNeeded("-10", 16));
+ EXPECT_EQ(9U, APInt::getBitsNeeded("-1F", 16));
+ EXPECT_EQ(9U, APInt::getBitsNeeded("-20", 16));
+}
+
+TEST(APIntTest, toString) {
+ SmallString<16> S;
+ bool isSigned;
+
+ APInt(8, 0).toString(S, 2, true, true);
+ EXPECT_EQ(S.str().str(), "0b0");
+ S.clear();
+ APInt(8, 0).toString(S, 8, true, true);
+ EXPECT_EQ(S.str().str(), "00");
+ S.clear();
+ APInt(8, 0).toString(S, 10, true, true);
+ EXPECT_EQ(S.str().str(), "0");
+ S.clear();
+ APInt(8, 0).toString(S, 16, true, true);
+ EXPECT_EQ(S.str().str(), "0x0");
+ S.clear();
+ APInt(8, 0).toString(S, 36, true, false);
+ EXPECT_EQ(S.str().str(), "0");
+ S.clear();
+
+ isSigned = false;
+ APInt(8, 255, isSigned).toString(S, 2, isSigned, true);
+ EXPECT_EQ(S.str().str(), "0b11111111");
+ S.clear();
+ APInt(8, 255, isSigned).toString(S, 8, isSigned, true);
+ EXPECT_EQ(S.str().str(), "0377");
+ S.clear();
+ APInt(8, 255, isSigned).toString(S, 10, isSigned, true);
+ EXPECT_EQ(S.str().str(), "255");
+ S.clear();
+ APInt(8, 255, isSigned).toString(S, 16, isSigned, true);
+ EXPECT_EQ(S.str().str(), "0xFF");
+ S.clear();
+ APInt(8, 255, isSigned).toString(S, 36, isSigned, false);
+ EXPECT_EQ(S.str().str(), "73");
+ S.clear();
+
+ isSigned = true;
+ APInt(8, 255, isSigned).toString(S, 2, isSigned, true);
+ EXPECT_EQ(S.str().str(), "-0b1");
+ S.clear();
+ APInt(8, 255, isSigned).toString(S, 8, isSigned, true);
+ EXPECT_EQ(S.str().str(), "-01");
+ S.clear();
+ APInt(8, 255, isSigned).toString(S, 10, isSigned, true);
+ EXPECT_EQ(S.str().str(), "-1");
+ S.clear();
+ APInt(8, 255, isSigned).toString(S, 16, isSigned, true);
+ EXPECT_EQ(S.str().str(), "-0x1");
+ S.clear();
+ APInt(8, 255, isSigned).toString(S, 36, isSigned, false);
+ EXPECT_EQ(S.str().str(), "-1");
+ S.clear();
+}
+
+TEST(APIntTest, Log2) {
+ EXPECT_EQ(APInt(15, 7).logBase2(), 2U);
+ EXPECT_EQ(APInt(15, 7).ceilLogBase2(), 3U);
+ EXPECT_EQ(APInt(15, 7).exactLogBase2(), -1);
+ EXPECT_EQ(APInt(15, 8).logBase2(), 3U);
+ EXPECT_EQ(APInt(15, 8).ceilLogBase2(), 3U);
+ EXPECT_EQ(APInt(15, 8).exactLogBase2(), 3);
+ EXPECT_EQ(APInt(15, 9).logBase2(), 3U);
+ EXPECT_EQ(APInt(15, 9).ceilLogBase2(), 4U);
+ EXPECT_EQ(APInt(15, 9).exactLogBase2(), -1);
+}
+
+TEST(APIntTest, magic) {
+ EXPECT_EQ(APInt(32, 3).magic().m, APInt(32, "55555556", 16));
+ EXPECT_EQ(APInt(32, 3).magic().s, 0U);
+ EXPECT_EQ(APInt(32, 5).magic().m, APInt(32, "66666667", 16));
+ EXPECT_EQ(APInt(32, 5).magic().s, 1U);
+ EXPECT_EQ(APInt(32, 7).magic().m, APInt(32, "92492493", 16));
+ EXPECT_EQ(APInt(32, 7).magic().s, 2U);
+}
+
+TEST(APIntTest, magicu) {
+ EXPECT_EQ(APInt(32, 3).magicu().m, APInt(32, "AAAAAAAB", 16));
+ EXPECT_EQ(APInt(32, 3).magicu().s, 1U);
+ EXPECT_EQ(APInt(32, 5).magicu().m, APInt(32, "CCCCCCCD", 16));
+ EXPECT_EQ(APInt(32, 5).magicu().s, 2U);
+ EXPECT_EQ(APInt(32, 7).magicu().m, APInt(32, "24924925", 16));
+ EXPECT_EQ(APInt(32, 7).magicu().s, 3U);
+ EXPECT_EQ(APInt(64, 25).magicu(1).m, APInt(64, "A3D70A3D70A3D70B", 16));
+ EXPECT_EQ(APInt(64, 25).magicu(1).s, 4U);
+}
+
+#ifdef GTEST_HAS_DEATH_TEST
+#ifndef NDEBUG
+TEST(APIntTest, StringDeath) {
+ EXPECT_DEATH(APInt(0, "", 0), "Bitwidth too small");
+ EXPECT_DEATH(APInt(32, "", 0), "Invalid string length");
+ EXPECT_DEATH(APInt(32, "0", 0), "Radix should be 2, 8, 10, 16, or 36!");
+ EXPECT_DEATH(APInt(32, "", 10), "Invalid string length");
+ EXPECT_DEATH(APInt(32, "-", 10), "String is only a sign, needs a value.");
+ EXPECT_DEATH(APInt(1, "1234", 10), "Insufficient bit width");
+ EXPECT_DEATH(APInt(32, "\0", 10), "Invalid string length");
+ EXPECT_DEATH(APInt(32, StringRef("1\02", 3), 10), "Invalid character in digit string");
+ EXPECT_DEATH(APInt(32, "1L", 10), "Invalid character in digit string");
+}
+#endif
+#endif
+
+TEST(APIntTest, mul_clear) {
+ APInt ValA(65, -1ULL);
+ APInt ValB(65, 4);
+ APInt ValC(65, 0);
+ ValC = ValA * ValB;
+ ValA *= ValB;
+ EXPECT_EQ(ValA.toString(10, false), ValC.toString(10, false));
+}
+
+TEST(APIntTest, Rotate) {
+ EXPECT_EQ(APInt(8, 1), APInt(8, 1).rotl(0));
+ EXPECT_EQ(APInt(8, 2), APInt(8, 1).rotl(1));
+ EXPECT_EQ(APInt(8, 4), APInt(8, 1).rotl(2));
+ EXPECT_EQ(APInt(8, 16), APInt(8, 1).rotl(4));
+ EXPECT_EQ(APInt(8, 1), APInt(8, 1).rotl(8));
+
+ EXPECT_EQ(APInt(8, 16), APInt(8, 16).rotl(0));
+ EXPECT_EQ(APInt(8, 32), APInt(8, 16).rotl(1));
+ EXPECT_EQ(APInt(8, 64), APInt(8, 16).rotl(2));
+ EXPECT_EQ(APInt(8, 1), APInt(8, 16).rotl(4));
+ EXPECT_EQ(APInt(8, 16), APInt(8, 16).rotl(8));
+
+ EXPECT_EQ(APInt(8, 16), APInt(8, 16).rotr(0));
+ EXPECT_EQ(APInt(8, 8), APInt(8, 16).rotr(1));
+ EXPECT_EQ(APInt(8, 4), APInt(8, 16).rotr(2));
+ EXPECT_EQ(APInt(8, 1), APInt(8, 16).rotr(4));
+ EXPECT_EQ(APInt(8, 16), APInt(8, 16).rotr(8));
+
+ EXPECT_EQ(APInt(8, 1), APInt(8, 1).rotr(0));
+ EXPECT_EQ(APInt(8, 128), APInt(8, 1).rotr(1));
+ EXPECT_EQ(APInt(8, 64), APInt(8, 1).rotr(2));
+ EXPECT_EQ(APInt(8, 16), APInt(8, 1).rotr(4));
+ EXPECT_EQ(APInt(8, 1), APInt(8, 1).rotr(8));
+
+ APInt Big(256, "00004000800000000000000000003fff8000000000000000", 16);
+ APInt Rot(256, "3fff80000000000000000000000000000000000040008000", 16);
+ EXPECT_EQ(Rot, Big.rotr(144));
+}
+
+TEST(APIntTest, Splat) {
+ APInt ValA(8, 0x01);
+ EXPECT_EQ(ValA, APInt::getSplat(8, ValA));
+ EXPECT_EQ(APInt(64, 0x0101010101010101ULL), APInt::getSplat(64, ValA));
+
+ APInt ValB(3, 5);
+ EXPECT_EQ(APInt(4, 0xD), APInt::getSplat(4, ValB));
+ EXPECT_EQ(APInt(15, 0xDB6D), APInt::getSplat(15, ValB));
+}
+
+TEST(APIntTest, tcDecrement) {
+ // Test single word decrement.
+
+ // No out borrow.
+ {
+ integerPart singleWord = ~integerPart(0) << (integerPartWidth - 1);
+ integerPart carry = APInt::tcDecrement(&singleWord, 1);
+ EXPECT_EQ(carry, integerPart(0));
+ EXPECT_EQ(singleWord, ~integerPart(0) >> 1);
+ }
+
+ // With out borrow.
+ {
+ integerPart singleWord = 0;
+ integerPart carry = APInt::tcDecrement(&singleWord, 1);
+ EXPECT_EQ(carry, integerPart(1));
+ EXPECT_EQ(singleWord, ~integerPart(0));
+ }
+
+ // Test multiword decrement.
+
+ // No across word borrow, no out borrow.
+ {
+ integerPart test[4] = {0x1, 0x1, 0x1, 0x1};
+ integerPart expected[4] = {0x0, 0x1, 0x1, 0x1};
+ APInt::tcDecrement(test, 4);
+ EXPECT_EQ(APInt::tcCompare(test, expected, 4), 0);
+ }
+
+ // 1 across word borrow, no out borrow.
+ {
+ integerPart test[4] = {0x0, 0xF, 0x1, 0x1};
+ integerPart expected[4] = {~integerPart(0), 0xE, 0x1, 0x1};
+ integerPart carry = APInt::tcDecrement(test, 4);
+ EXPECT_EQ(carry, integerPart(0));
+ EXPECT_EQ(APInt::tcCompare(test, expected, 4), 0);
+ }
+
+ // 2 across word borrow, no out borrow.
+ {
+ integerPart test[4] = {0x0, 0x0, 0xC, 0x1};
+ integerPart expected[4] = {~integerPart(0), ~integerPart(0), 0xB, 0x1};
+ integerPart carry = APInt::tcDecrement(test, 4);
+ EXPECT_EQ(carry, integerPart(0));
+ EXPECT_EQ(APInt::tcCompare(test, expected, 4), 0);
+ }
+
+ // 3 across word borrow, no out borrow.
+ {
+ integerPart test[4] = {0x0, 0x0, 0x0, 0x1};
+ integerPart expected[4] = {~integerPart(0), ~integerPart(0), ~integerPart(0), 0x0};
+ integerPart carry = APInt::tcDecrement(test, 4);
+ EXPECT_EQ(carry, integerPart(0));
+ EXPECT_EQ(APInt::tcCompare(test, expected, 4), 0);
+ }
+
+ // 3 across word borrow, with out borrow.
+ {
+ integerPart test[4] = {0x0, 0x0, 0x0, 0x0};
+ integerPart expected[4] = {~integerPart(0), ~integerPart(0), ~integerPart(0), ~integerPart(0)};
+ integerPart carry = APInt::tcDecrement(test, 4);
+ EXPECT_EQ(carry, integerPart(1));
+ EXPECT_EQ(APInt::tcCompare(test, expected, 4), 0);
+ }
+}
+
+TEST(APIntTest, arrayAccess) {
+ // Single word check.
+ uint64_t E1 = 0x2CA7F46BF6569915ULL;
+ APInt A1(64, E1);
+ for (unsigned i = 0, e = 64; i < e; ++i) {
+ EXPECT_EQ(bool(E1 & (1ULL << i)),
+ A1[i]);
+ }
+
+ // Multiword check.
+ integerPart E2[4] = {
+ 0xEB6EB136591CBA21ULL,
+ 0x7B9358BD6A33F10AULL,
+ 0x7E7FFA5EADD8846ULL,
+ 0x305F341CA00B613DULL
+ };
+ APInt A2(integerPartWidth*4, E2);
+ for (unsigned i = 0; i < 4; ++i) {
+ for (unsigned j = 0; j < integerPartWidth; ++j) {
+ EXPECT_EQ(bool(E2[i] & (1ULL << j)),
+ A2[i*integerPartWidth + j]);
+ }
+ }
+}
+
+TEST(APIntTest, LargeAPIntConstruction) {
+ // Check that we can properly construct very large APInt. It is very
+ // unlikely that people will ever do this, but it is a legal input,
+ // so we should not crash on it.
+ APInt A9(UINT32_MAX, 0);
+ EXPECT_FALSE(A9.getBoolValue());
+}
+
+TEST(APIntTest, nearestLogBase2) {
+ // Single word check.
+
+ // Test round up.
+ uint64_t I1 = 0x1800001;
+ APInt A1(64, I1);
+ EXPECT_EQ(A1.nearestLogBase2(), A1.ceilLogBase2());
+
+ // Test round down.
+ uint64_t I2 = 0x1000011;
+ APInt A2(64, I2);
+ EXPECT_EQ(A2.nearestLogBase2(), A2.logBase2());
+
+ // Test ties round up.
+ uint64_t I3 = 0x1800000;
+ APInt A3(64, I3);
+ EXPECT_EQ(A3.nearestLogBase2(), A3.ceilLogBase2());
+
+ // Multiple word check.
+
+ // Test round up.
+ integerPart I4[4] = {0x0, 0xF, 0x18, 0x0};
+ APInt A4(integerPartWidth*4, I4);
+ EXPECT_EQ(A4.nearestLogBase2(), A4.ceilLogBase2());
+
+ // Test round down.
+ integerPart I5[4] = {0x0, 0xF, 0x10, 0x0};
+ APInt A5(integerPartWidth*4, I5);
+ EXPECT_EQ(A5.nearestLogBase2(), A5.logBase2());
+
+ // Test ties round up.
+ uint64_t I6[4] = {0x0, 0x0, 0x0, 0x18};
+ APInt A6(integerPartWidth*4, I6);
+ EXPECT_EQ(A6.nearestLogBase2(), A6.ceilLogBase2());
+
+ // Test BitWidth == 1 special cases.
+ APInt A7(1, 1);
+ EXPECT_EQ(A7.nearestLogBase2(), 0ULL);
+ APInt A8(1, 0);
+ EXPECT_EQ(A8.nearestLogBase2(), UINT32_MAX);
+
+ // Test the zero case when we have a bit width large enough such
+ // that the bit width is larger than UINT32_MAX-1.
+ APInt A9(UINT32_MAX, 0);
+ EXPECT_EQ(A9.nearestLogBase2(), UINT32_MAX);
+}
+
+TEST(APIntTest, IsSplat) {
+ APInt A(32, 0x01010101);
+ EXPECT_FALSE(A.isSplat(1));
+ EXPECT_FALSE(A.isSplat(2));
+ EXPECT_FALSE(A.isSplat(4));
+ EXPECT_TRUE(A.isSplat(8));
+ EXPECT_TRUE(A.isSplat(16));
+ EXPECT_TRUE(A.isSplat(32));
+
+ APInt B(24, 0xAAAAAA);
+ EXPECT_FALSE(B.isSplat(1));
+ EXPECT_TRUE(B.isSplat(2));
+ EXPECT_TRUE(B.isSplat(4));
+ EXPECT_TRUE(B.isSplat(8));
+ EXPECT_TRUE(B.isSplat(24));
+
+ APInt C(24, 0xABAAAB);
+ EXPECT_FALSE(C.isSplat(1));
+ EXPECT_FALSE(C.isSplat(2));
+ EXPECT_FALSE(C.isSplat(4));
+ EXPECT_FALSE(C.isSplat(8));
+ EXPECT_TRUE(C.isSplat(24));
+
+ APInt D(32, 0xABBAABBA);
+ EXPECT_FALSE(D.isSplat(1));
+ EXPECT_FALSE(D.isSplat(2));
+ EXPECT_FALSE(D.isSplat(4));
+ EXPECT_FALSE(D.isSplat(8));
+ EXPECT_TRUE(D.isSplat(16));
+ EXPECT_TRUE(D.isSplat(32));
+
+ APInt E(32, 0);
+ EXPECT_TRUE(E.isSplat(1));
+ EXPECT_TRUE(E.isSplat(2));
+ EXPECT_TRUE(E.isSplat(4));
+ EXPECT_TRUE(E.isSplat(8));
+ EXPECT_TRUE(E.isSplat(16));
+ EXPECT_TRUE(E.isSplat(32));
+}
+
+#if defined(__clang__)
+// Disable the pragma warning from versions of Clang without -Wself-move
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wunknown-pragmas"
+// Disable the warning that triggers on exactly what is being tested.
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wself-move"
+#endif
+TEST(APIntTest, SelfMoveAssignment) {
+ APInt X(32, 0xdeadbeef);
+ X = std::move(X);
+ EXPECT_EQ(32u, X.getBitWidth());
+ EXPECT_EQ(0xdeadbeefULL, X.getLimitedValue());
+
+ uint64_t Bits[] = {0xdeadbeefdeadbeefULL, 0xdeadbeefdeadbeefULL};
+ APInt Y(128, Bits);
+ Y = std::move(Y);
+ EXPECT_EQ(128u, Y.getBitWidth());
+ EXPECT_EQ(~0ULL, Y.getLimitedValue());
+ const uint64_t *Raw = Y.getRawData();
+ EXPECT_EQ(2u, Y.getNumWords());
+ EXPECT_EQ(0xdeadbeefdeadbeefULL, Raw[0]);
+ EXPECT_EQ(0xdeadbeefdeadbeefULL, Raw[1]);
+}
+#if defined(__clang__)
+#pragma clang diagnostic pop
+#pragma clang diagnostic pop
+#endif