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| author | Chandler Carruth <chandlerc@gmail.com> | 2014-10-10 08:27:22 +0000 |
|---|---|---|
| committer | Chandler Carruth <chandlerc@gmail.com> | 2014-10-10 08:27:22 +0000 |
| commit | afe56ae75ddfc2f4d5ddc49a7dbb9b872fc0c69a (patch) | |
| tree | 538c371fcf0e26929df83885c86f8f15781ee4ff /llvm/unittests/ADT/APFloatTest.cpp | |
| parent | 82cc9641f72327ba269ae730a789d8840cd50ba7 (diff) | |
| download | llvm-afe56ae75ddfc2f4d5ddc49a7dbb9b872fc0c69a.zip llvm-afe56ae75ddfc2f4d5ddc49a7dbb9b872fc0c69a.tar.gz llvm-afe56ae75ddfc2f4d5ddc49a7dbb9b872fc0c69a.tar.bz2 | |
[ADT] Add an (ADL-friendly) abs free function for APFloat that returns
by value having cleared the sign bit.
llvm-svn: 219485
Diffstat (limited to 'llvm/unittests/ADT/APFloatTest.cpp')
| -rw-r--r-- | llvm/unittests/ADT/APFloatTest.cpp | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/llvm/unittests/ADT/APFloatTest.cpp b/llvm/unittests/ADT/APFloatTest.cpp index 880e831..a86be5a 100644 --- a/llvm/unittests/ADT/APFloatTest.cpp +++ b/llvm/unittests/ADT/APFloatTest.cpp @@ -2714,6 +2714,44 @@ TEST(APFloatTest, operatorOverloads) { 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"))); |