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
diff --git a/unittests/ADT/APFloatTest.cpp b/unittests/ADT/APFloatTest.cpp
index caa288a..00b62fe 100644
--- a/unittests/ADT/APFloatTest.cpp
+++ b/unittests/ADT/APFloatTest.cpp
@@ -649,7 +649,7 @@
}
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 @@
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) {