diff options
Diffstat (limited to 'llvm/unittests/Support/ConstantRangeTest.cpp')
| -rw-r--r-- | llvm/unittests/Support/ConstantRangeTest.cpp | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/llvm/unittests/Support/ConstantRangeTest.cpp b/llvm/unittests/Support/ConstantRangeTest.cpp index 6d2510c..7d4055f 100644 --- a/llvm/unittests/Support/ConstantRangeTest.cpp +++ b/llvm/unittests/Support/ConstantRangeTest.cpp @@ -382,6 +382,14 @@ TEST_F(ConstantRangeTest, Multiply) { EXPECT_EQ(Some.multiply(Wrap), Full); EXPECT_EQ(Wrap.multiply(Wrap), Full); + ConstantRange Zero(APInt(16, 0)); + EXPECT_EQ(Zero.multiply(Full), Zero); + EXPECT_EQ(Zero.multiply(Some), Zero); + EXPECT_EQ(Zero.multiply(Wrap), Zero); + EXPECT_EQ(Full.multiply(Zero), Zero); + EXPECT_EQ(Some.multiply(Zero), Zero); + EXPECT_EQ(Wrap.multiply(Zero), Zero); + // http://llvm.org/PR4545 EXPECT_EQ(ConstantRange(APInt(4, 1), APInt(4, 6)).multiply( ConstantRange(APInt(4, 6), APInt(4, 2))), |