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| author | Stephen Hines <srhines@google.com> | 2012-08-23 19:08:53 -0700 |
|---|---|---|
| committer | Stephen Hines <srhines@google.com> | 2012-08-23 19:08:53 -0700 |
| commit | 31675153bd2d7617db8cb6aeb58054934c7b9f73 (patch) | |
| tree | c1970fcebc736d4f731db0559a79a7ac5cb0f8bf /unittests/ADT/APFloatTest.cpp | |
| parent | 416bb6a168a9316547db6ce3909c515f70a84f52 (diff) | |
| parent | 75dd7f0c4a2b3fb9e9d4d5a0517591810c57ed92 (diff) | |
| download | external_llvm-31675153bd2d7617db8cb6aeb58054934c7b9f73.zip external_llvm-31675153bd2d7617db8cb6aeb58054934c7b9f73.tar.gz external_llvm-31675153bd2d7617db8cb6aeb58054934c7b9f73.tar.bz2 | |
Merge branch 'upstream' into merge_2
Conflicts:
lib/Target/ARM/ARMCodeEmitter.cpp
Change-Id: I6702d340c733e9721499b5d85b13b96ad9c14eb5
Diffstat (limited to 'unittests/ADT/APFloatTest.cpp')
| -rw-r--r-- | unittests/ADT/APFloatTest.cpp | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/unittests/ADT/APFloatTest.cpp b/unittests/ADT/APFloatTest.cpp index cc207f7..00b62fe 100644 --- a/unittests/ADT/APFloatTest.cpp +++ b/unittests/ADT/APFloatTest.cpp @@ -648,6 +648,49 @@ TEST(APFloatTest, exactInverse) { EXPECT_FALSE(APFloat(1.40129846e-45f).getExactInverse(0)); } +TEST(APFloatTest, roundToIntegral) { + APFloat T(-0.5), S(3.14), R(APFloat::getLargest(APFloat::IEEEdouble)), P(0.0); + + P = T; + P.roundToIntegral(APFloat::rmTowardZero); + EXPECT_EQ(-0.0, P.convertToDouble()); + P = T; + P.roundToIntegral(APFloat::rmTowardNegative); + EXPECT_EQ(-1.0, P.convertToDouble()); + P = T; + P.roundToIntegral(APFloat::rmTowardPositive); + EXPECT_EQ(-0.0, P.convertToDouble()); + P = T; + P.roundToIntegral(APFloat::rmNearestTiesToEven); + EXPECT_EQ(-0.0, P.convertToDouble()); + + P = S; + P.roundToIntegral(APFloat::rmTowardZero); + EXPECT_EQ(3.0, P.convertToDouble()); + P = S; + P.roundToIntegral(APFloat::rmTowardNegative); + EXPECT_EQ(3.0, P.convertToDouble()); + P = S; + P.roundToIntegral(APFloat::rmTowardPositive); + EXPECT_EQ(4.0, P.convertToDouble()); + 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) { EXPECT_EQ(3.402823466e+38f, APFloat::getLargest(APFloat::IEEEsingle).convertToFloat()); EXPECT_EQ(1.7976931348623158e+308, APFloat::getLargest(APFloat::IEEEdouble).convertToDouble()); |