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| -rw-r--r-- | llvm/unittests/IR/ConstantRangeTest.cpp | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/llvm/unittests/IR/ConstantRangeTest.cpp b/llvm/unittests/IR/ConstantRangeTest.cpp index a03b7680d29..c6a0ef8f1b7 100644 --- a/llvm/unittests/IR/ConstantRangeTest.cpp +++ b/llvm/unittests/IR/ConstantRangeTest.cpp @@ -188,6 +188,18 @@ TEST_F(ConstantRangeTest, Trunc) { One.getUpper().trunc(10))); EXPECT_TRUE(TSome.isFullSet()); EXPECT_TRUE(TWrap.isFullSet()); + + // trunc([2, 5), 3->2) = [2, 1) + ConstantRange TwoFive(APInt(3, 2), APInt(3, 5)); + EXPECT_EQ(TwoFive.truncate(2), ConstantRange(APInt(2, 2), APInt(2, 1))); + + // trunc([2, 6), 3->2) = full + ConstantRange TwoSix(APInt(3, 2), APInt(3, 6)); + EXPECT_TRUE(TwoSix.truncate(2).isFullSet()); + + // trunc([5, 7), 3->2) = [1, 3) + ConstantRange FiveSeven(APInt(3, 5), APInt(3, 7)); + EXPECT_EQ(FiveSeven.truncate(2), ConstantRange(APInt(2, 1), APInt(2, 3))); } TEST_F(ConstantRangeTest, ZExt) { |
