///
/// \returns *this
APInt &operator*=(const APInt &RHS);
+ APInt &operator*=(uint64_t RHS);
/// \brief Addition assignment operator.
///
return b;
}
+inline APInt operator*(APInt a, uint64_t RHS) {
+ a *= RHS;
+ return a;
+}
+
+inline APInt operator*(uint64_t LHS, APInt b) {
+ b *= LHS;
+ return b;
+}
+
namespace APIntOps {
return *this;
}
+APInt& APInt::operator*=(uint64_t RHS) {
+ if (isSingleWord()) {
+ U.VAL *= RHS;
+ } else {
+ unsigned NumWords = getNumWords();
+ tcMultiplyPart(U.pVal, U.pVal, RHS, 0, NumWords, NumWords, false);
+ }
+ return clearUnusedBits();
+}
+
bool APInt::EqualSlowCase(const APInt& RHS) const {
return std::equal(U.pVal, U.pVal + getNumWords(), RHS.U.pVal);
}
EXPECT_EQ(63U, i32_neg1.countPopulation());
}
+TEST(APIntTest, multiply) {
+ APInt i64(64, 1234);
+
+ EXPECT_EQ(7006652, i64 * 5678);
+ EXPECT_EQ(7006652, 5678 * i64);
+
+ APInt i128 = APInt::getOneBitSet(128, 64);
+ APInt i128_1234(128, 1234);
+ i128_1234 <<= 64;
+ EXPECT_EQ(i128_1234, i128 * 1234);
+ EXPECT_EQ(i128_1234, 1234 * i128);
+
+ APInt i96 = APInt::getOneBitSet(96, 64);
+ i96 *= ~0ULL;
+ EXPECT_EQ(32U, i96.countLeadingOnes());
+ EXPECT_EQ(32U, i96.countPopulation());
+ EXPECT_EQ(64U, i96.countTrailingZeros());
+}
+
} // end anonymous namespace