diff options
Diffstat (limited to 'unittests')
| -rw-r--r-- | unittests/Support/ConstantRangeTest.cpp | 34 |
1 files changed, 32 insertions, 2 deletions
diff --git a/unittests/Support/ConstantRangeTest.cpp b/unittests/Support/ConstantRangeTest.cpp index 5fcdcfd..a562080 100644 --- a/unittests/Support/ConstantRangeTest.cpp +++ b/unittests/Support/ConstantRangeTest.cpp @@ -234,9 +234,39 @@ TEST_F(ConstantRangeTest, IntersectWith) { EXPECT_TRUE(LHS.intersectWith(RHS) == LHS); // previous bug: intersection of [min, 3) and [2, max) should be 2 - LHS = ConstantRange(APInt(32, -2147483648), APInt(32, 3)); - RHS = ConstantRange(APInt(32, 2), APInt(32, 2147483648)); + LHS = ConstantRange(APInt(32, -2147483646), APInt(32, 3)); + RHS = ConstantRange(APInt(32, 2), APInt(32, 2147483646)); EXPECT_EQ(LHS.intersectWith(RHS), ConstantRange(APInt(32, 2))); + + // [2, 0) /\ [4, 3) = [2, 0) + LHS = ConstantRange(APInt(32, 2), APInt(32, 0)); + RHS = ConstantRange(APInt(32, 4), APInt(32, 3)); + EXPECT_EQ(LHS.intersectWith(RHS), ConstantRange(APInt(32, 2), APInt(32, 0))); + + // [2, 0) /\ [4, 2) = [4, 0) + LHS = ConstantRange(APInt(32, 2), APInt(32, 0)); + RHS = ConstantRange(APInt(32, 4), APInt(32, 2)); + EXPECT_EQ(LHS.intersectWith(RHS), ConstantRange(APInt(32, 4), APInt(32, 0))); + + // [4, 2) /\ [5, 1) = [5, 1) + LHS = ConstantRange(APInt(32, 4), APInt(32, 2)); + RHS = ConstantRange(APInt(32, 5), APInt(32, 1)); + EXPECT_EQ(LHS.intersectWith(RHS), ConstantRange(APInt(32, 5), APInt(32, 1))); + + // [2, 0) /\ [7, 4) = [7, 4) + LHS = ConstantRange(APInt(32, 2), APInt(32, 0)); + RHS = ConstantRange(APInt(32, 7), APInt(32, 4)); + EXPECT_EQ(LHS.intersectWith(RHS), ConstantRange(APInt(32, 7), APInt(32, 4))); + + // [4, 2) /\ [1, 0) = [1, 0) + LHS = ConstantRange(APInt(32, 4), APInt(32, 2)); + RHS = ConstantRange(APInt(32, 1), APInt(32, 0)); + EXPECT_EQ(LHS.intersectWith(RHS), ConstantRange(APInt(32, 4), APInt(32, 2))); + + // [15, 0) /\ [7, 6) = [15, 0) + LHS = ConstantRange(APInt(32, 15), APInt(32, 0)); + RHS = ConstantRange(APInt(32, 7), APInt(32, 6)); + EXPECT_EQ(LHS.intersectWith(RHS), ConstantRange(APInt(32, 15), APInt(32, 0))); } TEST_F(ConstantRangeTest, UnionWith) { |