#include "llvm/ADT/SmallVector.h"
#include "llvm/Support/raw_ostream.h"
#include "gtest/gtest.h"
+#include <cmath>
#include <ostream>
#include <string>
f1.fusedMultiplyAdd(f2, f3, APFloat::rmNearestTiesToEven);
EXPECT_EQ(12.0f, f1.convertToFloat());
}
+
+ // Test for correct zero sign when answer is exactly zero.
+ // fma(1.0, -1.0, 1.0) -> +ve 0.
+ {
+ APFloat f1(1.0);
+ APFloat f2(-1.0);
+ APFloat f3(1.0);
+ f1.fusedMultiplyAdd(f2, f3, APFloat::rmNearestTiesToEven);
+ EXPECT_TRUE(!f1.isNegative() && f1.isZero());
+ }
+
+ // Test for correct zero sign when answer is exactly zero and rounding towards
+ // negative.
+ // fma(1.0, -1.0, 1.0) -> +ve 0.
+ {
+ APFloat f1(1.0);
+ APFloat f2(-1.0);
+ APFloat f3(1.0);
+ f1.fusedMultiplyAdd(f2, f3, APFloat::rmTowardNegative);
+ EXPECT_TRUE(f1.isNegative() && f1.isZero());
+ }
+
+ // Test for correct (in this case -ve) sign when adding like signed zeros.
+ // Test fma(0.0, -0.0, -0.0) -> -ve 0.
+ {
+ APFloat f1(0.0);
+ APFloat f2(-0.0);
+ APFloat f3(-0.0);
+ f1.fusedMultiplyAdd(f2, f3, APFloat::rmNearestTiesToEven);
+ EXPECT_TRUE(f1.isNegative() && f1.isZero());
+ }
+
+ // Test -ve sign preservation when small negative results underflow.
+ {
+ APFloat f1(APFloat::IEEEdouble, "-0x1p-1074");
+ APFloat f2(APFloat::IEEEdouble, "+0x1p-1074");
+ APFloat f3(0.0);
+ f1.fusedMultiplyAdd(f2, f3, APFloat::rmNearestTiesToEven);
+ EXPECT_TRUE(f1.isNegative() && f1.isZero());
+ }
+
+ // Test x87 extended precision case from http://llvm.org/PR20728.
+ {
+ APFloat M1(APFloat::x87DoubleExtended, 1.0);
+ APFloat M2(APFloat::x87DoubleExtended, 1.0);
+ APFloat A(APFloat::x87DoubleExtended, 3.0);
+
+ bool losesInfo = false;
+ M1.fusedMultiplyAdd(M1, A, APFloat::rmNearestTiesToEven);
+ M1.convert(APFloat::IEEEsingle, APFloat::rmNearestTiesToEven, &losesInfo);
+ EXPECT_FALSE(losesInfo);
+ EXPECT_EQ(4.0f, M1.convertToFloat());
+ }
+}
+
+TEST(APFloatTest, MinNum) {
+ APFloat f1(1.0);
+ APFloat f2(2.0);
+ APFloat nan = APFloat::getNaN(APFloat::IEEEdouble);
+
+ EXPECT_EQ(1.0, minnum(f1, f2).convertToDouble());
+ EXPECT_EQ(1.0, minnum(f2, f1).convertToDouble());
+ EXPECT_EQ(1.0, minnum(f1, nan).convertToDouble());
+ EXPECT_EQ(1.0, minnum(nan, f1).convertToDouble());
+}
+
+TEST(APFloatTest, MaxNum) {
+ APFloat f1(1.0);
+ APFloat f2(2.0);
+ APFloat nan = APFloat::getNaN(APFloat::IEEEdouble);
+
+ EXPECT_EQ(2.0, maxnum(f1, f2).convertToDouble());
+ EXPECT_EQ(2.0, maxnum(f2, f1).convertToDouble());
+ EXPECT_EQ(1.0, maxnum(f1, nan).convertToDouble());
+ EXPECT_EQ(1.0, minnum(nan, f1).convertToDouble());
}
TEST(APFloatTest, Denormal) {
EXPECT_TRUE(inv.bitwiseIsEqual(APFloat(8.5070592e+37f)));
// Large float, inverse is a denormal.
- EXPECT_FALSE(APFloat(1.7014118e38f).getExactInverse(0));
+ EXPECT_FALSE(APFloat(1.7014118e38f).getExactInverse(nullptr));
// Zero
- EXPECT_FALSE(APFloat(0.0).getExactInverse(0));
+ EXPECT_FALSE(APFloat(0.0).getExactInverse(nullptr));
// Denormalized float
- EXPECT_FALSE(APFloat(1.40129846e-45f).getExactInverse(0));
+ EXPECT_FALSE(APFloat(1.40129846e-45f).getExactInverse(nullptr));
}
TEST(APFloatTest, roundToIntegral) {
EXPECT_EQ(-0.0, P.convertToDouble());
P = APFloat::getNaN(APFloat::IEEEdouble);
P.roundToIntegral(APFloat::rmTowardZero);
- EXPECT_TRUE(IsNAN(P.convertToDouble()));
+ EXPECT_TRUE(std::isnan(P.convertToDouble()));
P = APFloat::getInf(APFloat::IEEEdouble);
P.roundToIntegral(APFloat::rmTowardZero);
- EXPECT_TRUE(IsInf(P.convertToDouble()) && P.convertToDouble() > 0.0);
+ EXPECT_TRUE(std::isinf(P.convertToDouble()) && P.convertToDouble() > 0.0);
P = APFloat::getInf(APFloat::IEEEdouble, true);
P.roundToIntegral(APFloat::rmTowardZero);
- EXPECT_TRUE(IsInf(P.convertToDouble()) && P.convertToDouble() < 0.0);
+ EXPECT_TRUE(std::isinf(P.convertToDouble()) && P.convertToDouble() < 0.0);
}
}
}
+TEST(APFloatTest, copySign) {
+ EXPECT_TRUE(APFloat(-42.0).bitwiseIsEqual(
+ APFloat::copySign(APFloat(42.0), APFloat(-1.0))));
+ EXPECT_TRUE(APFloat(42.0).bitwiseIsEqual(
+ APFloat::copySign(APFloat(-42.0), APFloat(1.0))));
+ EXPECT_TRUE(APFloat(-42.0).bitwiseIsEqual(
+ APFloat::copySign(APFloat(-42.0), APFloat(-1.0))));
+ EXPECT_TRUE(APFloat(42.0).bitwiseIsEqual(
+ APFloat::copySign(APFloat(42.0), APFloat(1.0))));
+}
+
TEST(APFloatTest, convert) {
bool losesInfo;
APFloat test(APFloat::IEEEdouble, "1.0");
{ PInf, MInf, "inf", APFloat::opOK, APFloat::fcInfinity },
{ PInf, PZero, "inf", APFloat::opOK, APFloat::fcInfinity },
{ PInf, MZero, "inf", APFloat::opOK, APFloat::fcInfinity },
- { PInf, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
+ { PInf, QNaN, "-nan", APFloat::opOK, APFloat::fcNaN },
#if 0
// See Note 1.
- { PInf, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
+ { PInf, SNaN, "-nan", APFloat::opInvalidOp, APFloat::fcNaN },
#endif
{ PInf, PNormalValue, "inf", APFloat::opOK, APFloat::fcInfinity },
{ PInf, MNormalValue, "inf", APFloat::opOK, APFloat::fcInfinity },
{ MInf, MInf, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
{ MInf, PZero, "-inf", APFloat::opOK, APFloat::fcInfinity },
{ MInf, MZero, "-inf", APFloat::opOK, APFloat::fcInfinity },
- { MInf, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
+ { MInf, QNaN, "-nan", APFloat::opOK, APFloat::fcNaN },
#if 0
// See Note 1.
- { MInf, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
+ { MInf, SNaN, "-nan", APFloat::opInvalidOp, APFloat::fcNaN },
#endif
{ MInf, PNormalValue, "-inf", APFloat::opOK, APFloat::fcInfinity },
{ MInf, MNormalValue, "-inf", APFloat::opOK, APFloat::fcInfinity },
{ PZero, MInf, "inf", APFloat::opOK, APFloat::fcInfinity },
{ PZero, PZero, "0x0p+0", APFloat::opOK, APFloat::fcZero },
{ PZero, MZero, "0x0p+0", APFloat::opOK, APFloat::fcZero },
- { PZero, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
+ { PZero, QNaN, "-nan", APFloat::opOK, APFloat::fcNaN },
#if 0
// See Note 1.
- { PZero, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
+ { PZero, SNaN, "-nan", APFloat::opInvalidOp, APFloat::fcNaN },
#endif
{ PZero, PNormalValue, "-0x1p+0", APFloat::opOK, APFloat::fcNormal },
{ PZero, MNormalValue, "0x1p+0", APFloat::opOK, APFloat::fcNormal },
{ MZero, MInf, "inf", APFloat::opOK, APFloat::fcInfinity },
{ MZero, PZero, "-0x0p+0", APFloat::opOK, APFloat::fcZero },
{ MZero, MZero, "0x0p+0", APFloat::opOK, APFloat::fcZero },
- { MZero, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
+ { MZero, QNaN, "-nan", APFloat::opOK, APFloat::fcNaN },
#if 0
// See Note 1.
- { MZero, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
+ { MZero, SNaN, "-nan", APFloat::opInvalidOp, APFloat::fcNaN },
#endif
{ MZero, PNormalValue, "-0x1p+0", APFloat::opOK, APFloat::fcNormal },
{ MZero, MNormalValue, "0x1p+0", APFloat::opOK, APFloat::fcNormal },
{ PNormalValue, MInf, "inf", APFloat::opOK, APFloat::fcInfinity },
{ PNormalValue, PZero, "0x1p+0", APFloat::opOK, APFloat::fcNormal },
{ PNormalValue, MZero, "0x1p+0", APFloat::opOK, APFloat::fcNormal },
- { PNormalValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
+ { PNormalValue, QNaN, "-nan", APFloat::opOK, APFloat::fcNaN },
#if 0
// See Note 1.
- { PNormalValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
+ { PNormalValue, SNaN, "-nan", APFloat::opInvalidOp, APFloat::fcNaN },
#endif
{ PNormalValue, PNormalValue, "0x0p+0", APFloat::opOK, APFloat::fcZero },
{ PNormalValue, MNormalValue, "0x1p+1", APFloat::opOK, APFloat::fcNormal },
{ MNormalValue, MInf, "inf", APFloat::opOK, APFloat::fcInfinity },
{ MNormalValue, PZero, "-0x1p+0", APFloat::opOK, APFloat::fcNormal },
{ MNormalValue, MZero, "-0x1p+0", APFloat::opOK, APFloat::fcNormal },
- { MNormalValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
+ { MNormalValue, QNaN, "-nan", APFloat::opOK, APFloat::fcNaN },
#if 0
// See Note 1.
- { MNormalValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
+ { MNormalValue, SNaN, "-nan", APFloat::opInvalidOp, APFloat::fcNaN },
#endif
{ MNormalValue, PNormalValue, "-0x1p+1", APFloat::opOK, APFloat::fcNormal },
{ MNormalValue, MNormalValue, "0x0p+0", APFloat::opOK, APFloat::fcZero },
{ PLargestValue, MInf, "inf", APFloat::opOK, APFloat::fcInfinity },
{ PLargestValue, PZero, "0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal },
{ PLargestValue, MZero, "0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal },
- { PLargestValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
+ { PLargestValue, QNaN, "-nan", APFloat::opOK, APFloat::fcNaN },
#if 0
// See Note 1.
- { PLargestValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
+ { PLargestValue, SNaN, "-nan", APFloat::opInvalidOp, APFloat::fcNaN },
#endif
{ PLargestValue, PNormalValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal },
{ PLargestValue, MNormalValue, "0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal },
{ MLargestValue, MInf, "inf", APFloat::opOK, APFloat::fcInfinity },
{ MLargestValue, PZero, "-0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal },
{ MLargestValue, MZero, "-0x1.fffffep+127", APFloat::opOK, APFloat::fcNormal },
- { MLargestValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
+ { MLargestValue, QNaN, "-nan", APFloat::opOK, APFloat::fcNaN },
#if 0
// See Note 1.
- { MLargestValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
+ { MLargestValue, SNaN, "-nan", APFloat::opInvalidOp, APFloat::fcNaN },
#endif
{ MLargestValue, PNormalValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal },
{ MLargestValue, MNormalValue, "-0x1.fffffep+127", APFloat::opInexact, APFloat::fcNormal },
{ PSmallestValue, MInf, "inf", APFloat::opOK, APFloat::fcInfinity },
{ PSmallestValue, PZero, "0x1p-149", APFloat::opOK, APFloat::fcNormal },
{ PSmallestValue, MZero, "0x1p-149", APFloat::opOK, APFloat::fcNormal },
- { PSmallestValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
+ { PSmallestValue, QNaN, "-nan", APFloat::opOK, APFloat::fcNaN },
#if 0
// See Note 1.
- { PSmallestValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
+ { PSmallestValue, SNaN, "-nan", APFloat::opInvalidOp, APFloat::fcNaN },
#endif
{ PSmallestValue, PNormalValue, "-0x1p+0", APFloat::opInexact, APFloat::fcNormal },
{ PSmallestValue, MNormalValue, "0x1p+0", APFloat::opInexact, APFloat::fcNormal },
{ MSmallestValue, MInf, "inf", APFloat::opOK, APFloat::fcInfinity },
{ MSmallestValue, PZero, "-0x1p-149", APFloat::opOK, APFloat::fcNormal },
{ MSmallestValue, MZero, "-0x1p-149", APFloat::opOK, APFloat::fcNormal },
- { MSmallestValue, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
+ { MSmallestValue, QNaN, "-nan", APFloat::opOK, APFloat::fcNaN },
#if 0
// See Note 1.
- { MSmallestValue, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
+ { MSmallestValue, SNaN, "-nan", APFloat::opInvalidOp, APFloat::fcNaN },
#endif
{ MSmallestValue, PNormalValue, "-0x1p+0", APFloat::opInexact, APFloat::fcNormal },
{ MSmallestValue, MNormalValue, "0x1p+0", APFloat::opInexact, APFloat::fcNormal },
{ PSmallestNormalized, MInf, "inf", APFloat::opOK, APFloat::fcInfinity },
{ PSmallestNormalized, PZero, "0x1p-126", APFloat::opOK, APFloat::fcNormal },
{ PSmallestNormalized, MZero, "0x1p-126", APFloat::opOK, APFloat::fcNormal },
- { PSmallestNormalized, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
+ { PSmallestNormalized, QNaN, "-nan", APFloat::opOK, APFloat::fcNaN },
#if 0
// See Note 1.
- { PSmallestNormalized, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
+ { PSmallestNormalized, SNaN, "-nan", APFloat::opInvalidOp, APFloat::fcNaN },
#endif
{ PSmallestNormalized, PNormalValue, "-0x1p+0", APFloat::opInexact, APFloat::fcNormal },
{ PSmallestNormalized, MNormalValue, "0x1p+0", APFloat::opInexact, APFloat::fcNormal },
{ MSmallestNormalized, MInf, "inf", APFloat::opOK, APFloat::fcInfinity },
{ MSmallestNormalized, PZero, "-0x1p-126", APFloat::opOK, APFloat::fcNormal },
{ MSmallestNormalized, MZero, "-0x1p-126", APFloat::opOK, APFloat::fcNormal },
- { MSmallestNormalized, QNaN, "nan", APFloat::opOK, APFloat::fcNaN },
+ { MSmallestNormalized, QNaN, "-nan", APFloat::opOK, APFloat::fcNaN },
#if 0
// See Note 1.
- { MSmallestNormalized, SNaN, "nan", APFloat::opInvalidOp, APFloat::fcNaN },
+ { MSmallestNormalized, SNaN, "-nan", APFloat::opInvalidOp, APFloat::fcNaN },
#endif
{ MSmallestNormalized, PNormalValue, "-0x1p+0", APFloat::opInexact, APFloat::fcNormal },
{ MSmallestNormalized, MNormalValue, "0x1p+0", APFloat::opInexact, APFloat::fcNormal },
}
}
+TEST(APFloatTest, operatorOverloads) {
+ // This is mostly testing that these operator overloads compile.
+ APFloat One = APFloat(APFloat::IEEEsingle, "0x1p+0");
+ APFloat Two = APFloat(APFloat::IEEEsingle, "0x2p+0");
+ EXPECT_TRUE(Two.bitwiseIsEqual(One + One));
+ EXPECT_TRUE(One.bitwiseIsEqual(Two - One));
+ EXPECT_TRUE(Two.bitwiseIsEqual(One * Two));
+ EXPECT_TRUE(One.bitwiseIsEqual(Two / Two));
+}
+
+TEST(APFloatTest, abs) {
+ APFloat PInf = APFloat::getInf(APFloat::IEEEsingle, false);
+ APFloat MInf = APFloat::getInf(APFloat::IEEEsingle, true);
+ APFloat PZero = APFloat::getZero(APFloat::IEEEsingle, false);
+ APFloat MZero = APFloat::getZero(APFloat::IEEEsingle, true);
+ APFloat PQNaN = APFloat::getNaN(APFloat::IEEEsingle, false);
+ APFloat MQNaN = APFloat::getNaN(APFloat::IEEEsingle, true);
+ APFloat PSNaN = APFloat::getSNaN(APFloat::IEEEsingle, false);
+ APFloat MSNaN = APFloat::getSNaN(APFloat::IEEEsingle, true);
+ APFloat PNormalValue = APFloat(APFloat::IEEEsingle, "0x1p+0");
+ APFloat MNormalValue = APFloat(APFloat::IEEEsingle, "-0x1p+0");
+ APFloat PLargestValue = APFloat::getLargest(APFloat::IEEEsingle, false);
+ APFloat MLargestValue = APFloat::getLargest(APFloat::IEEEsingle, true);
+ APFloat PSmallestValue = APFloat::getSmallest(APFloat::IEEEsingle, false);
+ APFloat MSmallestValue = APFloat::getSmallest(APFloat::IEEEsingle, true);
+ APFloat PSmallestNormalized =
+ APFloat::getSmallestNormalized(APFloat::IEEEsingle, false);
+ APFloat MSmallestNormalized =
+ APFloat::getSmallestNormalized(APFloat::IEEEsingle, true);
+
+ EXPECT_TRUE(PInf.bitwiseIsEqual(abs(PInf)));
+ EXPECT_TRUE(PInf.bitwiseIsEqual(abs(MInf)));
+ EXPECT_TRUE(PZero.bitwiseIsEqual(abs(PZero)));
+ EXPECT_TRUE(PZero.bitwiseIsEqual(abs(MZero)));
+ EXPECT_TRUE(PQNaN.bitwiseIsEqual(abs(PQNaN)));
+ EXPECT_TRUE(PQNaN.bitwiseIsEqual(abs(MQNaN)));
+ EXPECT_TRUE(PSNaN.bitwiseIsEqual(abs(PSNaN)));
+ EXPECT_TRUE(PSNaN.bitwiseIsEqual(abs(MSNaN)));
+ EXPECT_TRUE(PNormalValue.bitwiseIsEqual(abs(PNormalValue)));
+ EXPECT_TRUE(PNormalValue.bitwiseIsEqual(abs(MNormalValue)));
+ EXPECT_TRUE(PLargestValue.bitwiseIsEqual(abs(PLargestValue)));
+ EXPECT_TRUE(PLargestValue.bitwiseIsEqual(abs(MLargestValue)));
+ EXPECT_TRUE(PSmallestValue.bitwiseIsEqual(abs(PSmallestValue)));
+ EXPECT_TRUE(PSmallestValue.bitwiseIsEqual(abs(MSmallestValue)));
+ EXPECT_TRUE(PSmallestNormalized.bitwiseIsEqual(abs(PSmallestNormalized)));
+ EXPECT_TRUE(PSmallestNormalized.bitwiseIsEqual(abs(MSmallestNormalized)));
+}
+
+TEST(APFloatTest, ilogb) {
+ EXPECT_EQ(0, ilogb(APFloat(APFloat::IEEEsingle, "0x1p+0")));
+ EXPECT_EQ(0, ilogb(APFloat(APFloat::IEEEsingle, "-0x1p+0")));
+ EXPECT_EQ(42, ilogb(APFloat(APFloat::IEEEsingle, "0x1p+42")));
+ EXPECT_EQ(-42, ilogb(APFloat(APFloat::IEEEsingle, "0x1p-42")));
+
+ EXPECT_EQ(APFloat::IEK_Inf,
+ ilogb(APFloat::getInf(APFloat::IEEEsingle, false)));
+ EXPECT_EQ(APFloat::IEK_Inf,
+ ilogb(APFloat::getInf(APFloat::IEEEsingle, true)));
+ EXPECT_EQ(APFloat::IEK_Zero,
+ ilogb(APFloat::getZero(APFloat::IEEEsingle, false)));
+ EXPECT_EQ(APFloat::IEK_Zero,
+ ilogb(APFloat::getZero(APFloat::IEEEsingle, true)));
+ EXPECT_EQ(APFloat::IEK_NaN,
+ ilogb(APFloat::getNaN(APFloat::IEEEsingle, false)));
+ EXPECT_EQ(APFloat::IEK_NaN,
+ ilogb(APFloat::getSNaN(APFloat::IEEEsingle, false)));
+
+ EXPECT_EQ(127, ilogb(APFloat::getLargest(APFloat::IEEEsingle, false)));
+ EXPECT_EQ(127, ilogb(APFloat::getLargest(APFloat::IEEEsingle, true)));
+ EXPECT_EQ(-126, ilogb(APFloat::getSmallest(APFloat::IEEEsingle, false)));
+ EXPECT_EQ(-126, ilogb(APFloat::getSmallest(APFloat::IEEEsingle, true)));
+ EXPECT_EQ(-126,
+ ilogb(APFloat::getSmallestNormalized(APFloat::IEEEsingle, false)));
+ EXPECT_EQ(-126,
+ ilogb(APFloat::getSmallestNormalized(APFloat::IEEEsingle, true)));
+}
+
+TEST(APFloatTest, scalbn) {
+ EXPECT_TRUE(
+ APFloat(APFloat::IEEEsingle, "0x1p+0")
+ .bitwiseIsEqual(scalbn(APFloat(APFloat::IEEEsingle, "0x1p+0"), 0)));
+ EXPECT_TRUE(
+ APFloat(APFloat::IEEEsingle, "0x1p+42")
+ .bitwiseIsEqual(scalbn(APFloat(APFloat::IEEEsingle, "0x1p+0"), 42)));
+ EXPECT_TRUE(
+ APFloat(APFloat::IEEEsingle, "0x1p-42")
+ .bitwiseIsEqual(scalbn(APFloat(APFloat::IEEEsingle, "0x1p+0"), -42)));
+
+ APFloat PInf = APFloat::getInf(APFloat::IEEEsingle, false);
+ APFloat MInf = APFloat::getInf(APFloat::IEEEsingle, true);
+ APFloat PZero = APFloat::getZero(APFloat::IEEEsingle, false);
+ APFloat MZero = APFloat::getZero(APFloat::IEEEsingle, true);
+ APFloat QPNaN = APFloat::getNaN(APFloat::IEEEsingle, false);
+ APFloat QMNaN = APFloat::getNaN(APFloat::IEEEsingle, true);
+ APFloat SNaN = APFloat::getSNaN(APFloat::IEEEsingle, false);
+
+ EXPECT_TRUE(PInf.bitwiseIsEqual(scalbn(PInf, 0)));
+ EXPECT_TRUE(MInf.bitwiseIsEqual(scalbn(MInf, 0)));
+ EXPECT_TRUE(PZero.bitwiseIsEqual(scalbn(PZero, 0)));
+ EXPECT_TRUE(MZero.bitwiseIsEqual(scalbn(MZero, 0)));
+ EXPECT_TRUE(QPNaN.bitwiseIsEqual(scalbn(QPNaN, 0)));
+ EXPECT_TRUE(QMNaN.bitwiseIsEqual(scalbn(QMNaN, 0)));
+ EXPECT_TRUE(SNaN.bitwiseIsEqual(scalbn(SNaN, 0)));
+
+ EXPECT_TRUE(
+ PInf.bitwiseIsEqual(scalbn(APFloat(APFloat::IEEEsingle, "0x1p+0"), 128)));
+ EXPECT_TRUE(MInf.bitwiseIsEqual(
+ scalbn(APFloat(APFloat::IEEEsingle, "-0x1p+0"), 128)));
+ EXPECT_TRUE(
+ PInf.bitwiseIsEqual(scalbn(APFloat(APFloat::IEEEsingle, "0x1p+127"), 1)));
+ EXPECT_TRUE(PZero.bitwiseIsEqual(
+ scalbn(APFloat(APFloat::IEEEsingle, "0x1p+0"), -127)));
+ EXPECT_TRUE(MZero.bitwiseIsEqual(
+ scalbn(APFloat(APFloat::IEEEsingle, "-0x1p+0"), -127)));
+ EXPECT_TRUE(PZero.bitwiseIsEqual(
+ scalbn(APFloat(APFloat::IEEEsingle, "0x1p-126"), -1)));
+ EXPECT_TRUE(PZero.bitwiseIsEqual(
+ scalbn(APFloat(APFloat::IEEEsingle, "0x1p-126"), -1)));
+}
}
projects / oota-llvm.git / blobdiff