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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 | 352dfff4476b076e2c032d59ea0def3519a7a5c9 (patch) | |
| tree | c986b285aee567d25a8fc9179bd050cf50586e04 /llvm/unittests/ADT/APFloatTest.cpp | |
| parent | 73e325de558520985f3250adf8c413e96273561f (diff) | |
| download | llvm-352dfff4476b076e2c032d59ea0def3519a7a5c9.zip llvm-352dfff4476b076e2c032d59ea0def3519a7a5c9.tar.gz llvm-352dfff4476b076e2c032d59ea0def3519a7a5c9.tar.bz2 | |
Fix another roundToIntegral bug where very large values could become infinity. Problem and solution identified by Steve Canon.
llvm-svn: 161969
Diffstat (limited to 'llvm/unittests/ADT/APFloatTest.cpp')
| -rw-r--r-- | llvm/unittests/ADT/APFloatTest.cpp | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/llvm/unittests/ADT/APFloatTest.cpp b/llvm/unittests/ADT/APFloatTest.cpp index caa288a..00b62fe 100644 --- a/llvm/unittests/ADT/APFloatTest.cpp +++ b/llvm/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) { |