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[ConstantRange] Add test case showing a case where we pick too large of a range for multiply after r271020.
llvm-svn: 302700
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@ -443,6 +443,11 @@ TEST_F(ConstantRangeTest, Multiply) {
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EXPECT_EQ(ConstantRange(APInt(8, 254), APInt(8, 255)).multiply(
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ConstantRange(APInt(8, 2), APInt(8, 4))),
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ConstantRange(APInt(8, 250), APInt(8, 253)));
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// TODO: This should be return [-2, 0]
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EXPECT_EQ(ConstantRange(APInt(8, -2)).multiply(
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ConstantRange(APInt(8, 0), APInt(8, 2))),
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ConstantRange(APInt(8, 0), APInt(8, 255)));
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}
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TEST_F(ConstantRangeTest, UMax) {
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