}
}
+TEST(APIntTest, divrem_big1) {
+ // Tests KnuthDiv rare step D6
+ APInt a{256, "1ffffffffffffffff", 16};
+ APInt b{256, "1ffffffffffffffff", 16};
+ APInt c{256, 0};
+
+ auto p = a * b + c;
+ auto q = p.udiv(a);
+ auto r = p.urem(a);
+ EXPECT_EQ(q, b);
+ EXPECT_EQ(r, c);
+ APInt::udivrem(p, a, q, r);
+ EXPECT_EQ(q, b);
+ EXPECT_EQ(r, c);
+ q = p.udiv(b);
+ r = p.urem(b);
+ EXPECT_EQ(q, a);
+ EXPECT_EQ(r, c);
+ APInt::udivrem(p, b, q, r);
+ EXPECT_EQ(q, a);
+ EXPECT_EQ(r, c);
+ q = p.sdiv(a);
+ r = p.srem(a);
+ EXPECT_EQ(q, b);
+ EXPECT_EQ(r, c);
+ APInt::sdivrem(p, a, q, r);
+ EXPECT_EQ(q, b);
+ EXPECT_EQ(r, c);
+ q = p.sdiv(b);
+ r = p.srem(b);
+ EXPECT_EQ(q, a);
+ EXPECT_EQ(r, c);
+ APInt::sdivrem(p, b, q, r);
+ EXPECT_EQ(q, a);
+ EXPECT_EQ(r, c);
+}
+
+TEST(APIntTest, divrem_big2) {
+ // Tests KnuthDiv rare step D6
+ APInt a{1024, "111111ffffffffffffffff"
+ "ffffffffffffffffffffffffffffffff"
+ "fffffffffffffffffffffffffffffccf"
+ "ffffffffffffffffffffffffffffff00", 16};
+ APInt b{1024, "112233ceff"
+ "cecece000000ffffffffffffffffffff"
+ "ffffffffffffffffffffffffffffffff"
+ "ffffffffffffffffffffffffffffffff"
+ "ffffffffffffffffffffffffffffff33", 16};
+ APInt c{1024, 7919};
+
+ auto p = a * b + c;
+ auto q = p.udiv(a);
+ auto r = p.urem(a);
+ EXPECT_EQ(q, b);
+ EXPECT_EQ(r, c);
+ APInt::udivrem(p, a, q, r);
+ EXPECT_EQ(q, b);
+ EXPECT_EQ(r, c);
+ q = p.udiv(b);
+ r = p.urem(b);
+ EXPECT_EQ(q, a);
+ EXPECT_EQ(r, c);
+ APInt::udivrem(p, b, q, r);
+ EXPECT_EQ(q, a);
+ EXPECT_EQ(r, c);
+ q = p.sdiv(a);
+ r = p.srem(a);
+ EXPECT_EQ(q, b);
+ EXPECT_EQ(r, c);
+ APInt::sdivrem(p, a, q, r);
+ EXPECT_EQ(q, b);
+ EXPECT_EQ(r, c);
+ q = p.sdiv(b);
+ r = p.srem(b);
+ EXPECT_EQ(q, a);
+ EXPECT_EQ(r, c);
+ APInt::sdivrem(p, b, q, r);
+ EXPECT_EQ(q, a);
+ EXPECT_EQ(r, c);
+}
+
+TEST(APIntTest, divrem_big3) {
+ // Tests KnuthDiv case without shift
+ APInt a{256, "ffffffffffffff0000000", 16};
+ APInt b{256, "80000001ffffffffffffffff", 16};
+ APInt c{256, 4219};
+
+ auto p = a * b + c;
+ auto q = p.udiv(a);
+ auto r = p.urem(a);
+ EXPECT_EQ(q, b);
+ EXPECT_EQ(r, c);
+ APInt::udivrem(p, a, q, r);
+ EXPECT_EQ(q, b);
+ EXPECT_EQ(r, c);
+ q = p.udiv(b);
+ r = p.urem(b);
+ EXPECT_EQ(q, a);
+ EXPECT_EQ(r, c);
+ APInt::udivrem(p, b, q, r);
+ EXPECT_EQ(q, a);
+ EXPECT_EQ(r, c);
+ q = p.sdiv(a);
+ r = p.srem(a);
+ EXPECT_EQ(q, b);
+ EXPECT_EQ(r, c);
+ APInt::sdivrem(p, a, q, r);
+ EXPECT_EQ(q, b);
+ EXPECT_EQ(r, c);
+ q = p.sdiv(b);
+ r = p.srem(b);
+ EXPECT_EQ(q, a);
+ EXPECT_EQ(r, c);
+ APInt::sdivrem(p, b, q, r);
+ EXPECT_EQ(q, a);
+ EXPECT_EQ(r, c);
+}
+
+TEST(APIntTest, divrem_big4) {
+ // Tests heap allocation in divide() enfoced by huge numbers
+ auto a = APInt{4096, 1}.shl(2000);
+ auto b = APInt{4096, 5}.shl(2001);
+ auto c = APInt{4096, 4219*13};
+
+ auto p = a * b + c;
+ auto q = p.udiv(a);
+ auto r = p.urem(a);
+ EXPECT_EQ(q, b);
+ EXPECT_EQ(r, c);
+ q = APInt{1024, 0}; // test non-single word APInt conversion in divide()
+ r = APInt{1024, 0};
+ APInt::udivrem(p, a, q, r);
+ EXPECT_EQ(q, b);
+ EXPECT_EQ(r, c);
+ q = p.udiv(b);
+ r = p.urem(b);
+ EXPECT_EQ(q, a);
+ EXPECT_EQ(r, c);
+ q = APInt{1024, 0};
+ r = APInt{1024, 0};
+ APInt::udivrem(p, b, q, r);
+ EXPECT_EQ(q, a);
+ EXPECT_EQ(r, c);
+ q = p.sdiv(a);
+ r = p.srem(a);
+ EXPECT_EQ(q, b);
+ EXPECT_EQ(r, c);
+ q = APInt{1024, 0};
+ r = APInt{1024, 0};
+ APInt::sdivrem(p, a, q, r);
+ EXPECT_EQ(q, b);
+ EXPECT_EQ(r, c);
+ q = p.sdiv(b);
+ r = p.srem(b);
+ EXPECT_EQ(q, a);
+ EXPECT_EQ(r, c);
+ q = APInt{1024, 0};
+ r = APInt{1024, 0};
+ APInt::sdivrem(p, b, q, r);
+ EXPECT_EQ(q, a);
+ EXPECT_EQ(r, c);
+}
+
+TEST(APIntTest, divrem_big5) {
+ // Tests one word divisor case of divide()
+ auto a = APInt{1024, 19}.shl(811);
+ auto b = APInt{1024, 4356013}; // one word
+ auto c = APInt{1024, 1};
+
+ auto p = a * b + c;
+ auto q = p.udiv(a);
+ auto r = p.urem(a);
+ EXPECT_EQ(q, b);
+ EXPECT_EQ(r, c);
+ APInt::udivrem(p, a, q, r);
+ EXPECT_EQ(q, b);
+ EXPECT_EQ(r, c);
+ q = p.udiv(b);
+ r = p.urem(b);
+ EXPECT_EQ(q, a);
+ EXPECT_EQ(r, c);
+ APInt::udivrem(p, b, q, r);
+ EXPECT_EQ(q, a);
+ EXPECT_EQ(r, c);
+ q = p.sdiv(a);
+ r = p.srem(a);
+ EXPECT_EQ(q, b);
+ EXPECT_EQ(r, c);
+ APInt::sdivrem(p, a, q, r);
+ EXPECT_EQ(q, b);
+ EXPECT_EQ(r, c);
+ q = p.sdiv(b);
+ r = p.srem(b);
+ EXPECT_EQ(q, a);
+ EXPECT_EQ(r, c);
+ APInt::sdivrem(p, b, q, r);
+ EXPECT_EQ(q, a);
+ EXPECT_EQ(r, c);
+}
+
TEST(APIntTest, fromString) {
EXPECT_EQ(APInt(32, 0), APInt(32, "0", 2));
EXPECT_EQ(APInt(32, 1), APInt(32, "1", 2));
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
}
projects / oota-llvm.git / blobdiff