diff options
Diffstat (limited to 'llvm/unittests/IR/ConstantRangeTest.cpp')
| -rw-r--r-- | llvm/unittests/IR/ConstantRangeTest.cpp | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/llvm/unittests/IR/ConstantRangeTest.cpp b/llvm/unittests/IR/ConstantRangeTest.cpp index 2e5ab82..4d19dd59 100644 --- a/llvm/unittests/IR/ConstantRangeTest.cpp +++ b/llvm/unittests/IR/ConstantRangeTest.cpp @@ -2317,4 +2317,20 @@ TEST_F(ConstantRangeTest, castOps) { EXPECT_EQ(64u, IntToPtr.getBitWidth()); EXPECT_TRUE(IntToPtr.isFullSet()); } + +TEST_F(ConstantRangeTest, binaryXor) { + // Single element ranges. + ConstantRange R16(APInt(8, 16)); + ConstantRange R20(APInt(8, 20)); + EXPECT_EQ(*R16.binaryXor(R16).getSingleElement(), APInt(8, 0)); + EXPECT_EQ(*R16.binaryXor(R20).getSingleElement(), APInt(8, 16 ^ 20)); + + // Ranges with more than a single element. Handled conservatively for now. + ConstantRange R16_35(APInt(8, 16), APInt(8, 35)); + ConstantRange R0_99(APInt(8, 0), APInt(8, 99)); + EXPECT_TRUE(R16_35.binaryXor(R16_35).isFullSet()); + EXPECT_TRUE(R16_35.binaryXor(R0_99).isFullSet()); + EXPECT_TRUE(R0_99.binaryXor(R16_35).isFullSet()); +} + } // anonymous namespace |