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| author | Owen Anderson <resistor@mac.com> | 2012-08-15 18:28:45 +0000 |
|---|---|---|
| committer | Owen Anderson <resistor@mac.com> | 2012-08-15 18:28:45 +0000 |
| commit | c82cc587a468d44e5cfabfa8f8a639667127845d (patch) | |
| tree | 05e458aa3ea8daf0d4dcdadcdabc918473cc38df /unittests | |
| parent | c97eda2c9e34f4c491f59bbac81af2fd63fef49d (diff) | |
| download | llvm-c82cc587a468d44e5cfabfa8f8a639667127845d.tar.gz llvm-c82cc587a468d44e5cfabfa8f8a639667127845d.tar.bz2 llvm-c82cc587a468d44e5cfabfa8f8a639667127845d.tar.xz | |
Fix another roundToIntegral bug where very large values could become infinity. Problem and solution identified by Steve Canon.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161969 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'unittests')
| -rw-r--r-- | unittests/ADT/APFloatTest.cpp | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/unittests/ADT/APFloatTest.cpp b/unittests/ADT/APFloatTest.cpp index caa288afaf..00b62feaeb 100644 --- a/unittests/ADT/APFloatTest.cpp +++ b/unittests/ADT/APFloatTest.cpp @@ -649,7 +649,7 @@ TEST(APFloatTest, exactInverse) { } TEST(APFloatTest, roundToIntegral) { - APFloat T(-0.5), S(3.14), P(0.0); + APFloat T(-0.5), S(3.14), R(APFloat::getLargest(APFloat::IEEEdouble)), P(0.0); P = T; P.roundToIntegral(APFloat::rmTowardZero); @@ -676,6 +676,19 @@ TEST(APFloatTest, roundToIntegral) { P = S; P.roundToIntegral(APFloat::rmNearestTiesToEven); EXPECT_EQ(3.0, P.convertToDouble()); + + P = R; + P.roundToIntegral(APFloat::rmTowardZero); + EXPECT_EQ(R.convertToDouble(), P.convertToDouble()); + P = R; + P.roundToIntegral(APFloat::rmTowardNegative); + EXPECT_EQ(R.convertToDouble(), P.convertToDouble()); + P = R; + P.roundToIntegral(APFloat::rmTowardPositive); + EXPECT_EQ(R.convertToDouble(), P.convertToDouble()); + P = R; + P.roundToIntegral(APFloat::rmNearestTiesToEven); + EXPECT_EQ(R.convertToDouble(), P.convertToDouble()); } TEST(APFloatTest, getLargest) { |