//
//===----------------------------------------------------------------------===//
-#include <ostream>
-#include "gtest/gtest.h"
#include "llvm/ADT/APInt.h"
#include "llvm/ADT/SmallString.h"
+#include "gtest/gtest.h"
+#include <ostream>
using namespace llvm;
#endif
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(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(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, fromString) {
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) {
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);
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);
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) {
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, or 16!");
+ 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");
#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, 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]);
+}
+
}
projects / oota-llvm.git / blobdiff