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[ConstantRange] Add a few more truncate unittests.

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llvm-svn: 304694
This commit is contained in:
Craig Topper 2017-06-04 23:03:54 +00:00
parent e3e4e5fe38
commit 3c3b867d31
1 changed files with 12 additions and 0 deletions
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12
unittests/IR/ConstantRangeTest.cpp
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@ -188,6 +188,18 @@ TEST_F(ConstantRangeTest, Trunc) {
One.getUpper().trunc(10))); One.getUpper().trunc(10)));
EXPECT_TRUE(TSome.isFullSet()); EXPECT_TRUE(TSome.isFullSet());
EXPECT_TRUE(TWrap.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) { TEST_F(ConstantRangeTest, ZExt) {