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Fix a bug summing two full sets. The overflow checking doesn't handle sets as

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large as the full set, only those one size smaller. Thanks to Daniel Dunbar
who found this bug using Klee!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75443 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nick Lewycky
2009-07-13 02:49:08 +00:00
parent deb052a3dd
commit cf9e07dea8
2 changed files with 3 additions and 0 deletions
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1
unittests/Support/ConstantRangeTest.cpp
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@ -239,6 +239,7 @@ TEST_F(ConstantRangeTest, SubtractAPInt) {
TEST_F(ConstantRangeTest, Add) {
EXPECT_TRUE(Full.add(APInt(16, 4)).isFullSet());
EXPECT_EQ(Full.add(Full), Full);
EXPECT_EQ(Full.add(Empty), Empty);
EXPECT_EQ(Full.add(One), Full);
EXPECT_EQ(Full.add(Some), Full);