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| author | Serguei Katkov <serguei.katkov@azul.com> | 2017-11-01 07:56:55 +0000 |
|---|---|---|
| committer | Serguei Katkov <serguei.katkov@azul.com> | 2017-11-01 07:56:55 +0000 |
| commit | bfaa9edde93772113f28b727fd8f1bf7f6667ddb (patch) | |
| tree | 770f70d80b1d20de64a95bf642e66e6299d24cc9 /unittests | |
| parent | 5d7d418e3b7d9ecfae4c63338bc4e87e8b666ffd (diff) | |
Fix APFloat mod sign
fmod specification requires the sign of the remainder is
the same as numerator in case remainder is zero.
Reviewers: gottesmm, scanon, arsenm, davide, craig.topper
Reviewed By: scanon
Subscribers: wdng, llvm-commits
Differential Revision: https://reviews.llvm.org/D39225
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317081 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'unittests')
| -rw-r--r-- | unittests/ADT/APFloatTest.cpp | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/unittests/ADT/APFloatTest.cpp b/unittests/ADT/APFloatTest.cpp index 280a0862ccc..84fb6fad156 100644 --- a/unittests/ADT/APFloatTest.cpp +++ b/unittests/ADT/APFloatTest.cpp @@ -3289,6 +3289,20 @@ TEST(APFloatTest, mod) { EXPECT_EQ(f1.mod(f2), APFloat::opInvalidOp); EXPECT_TRUE(f1.isNaN()); } + { + APFloat f1(APFloat::IEEEdouble(), "-4.0"); + APFloat f2(APFloat::IEEEdouble(), "-2.0"); + APFloat expected(APFloat::IEEEdouble(), "-0.0"); + EXPECT_EQ(f1.mod(f2), APFloat::opOK); + EXPECT_TRUE(f1.bitwiseIsEqual(expected)); + } + { + APFloat f1(APFloat::IEEEdouble(), "-4.0"); + APFloat f2(APFloat::IEEEdouble(), "2.0"); + APFloat expected(APFloat::IEEEdouble(), "-0.0"); + EXPECT_EQ(f1.mod(f2), APFloat::opOK); + EXPECT_TRUE(f1.bitwiseIsEqual(expected)); + } } TEST(APFloatTest, PPCDoubleDoubleAddSpecial) { |