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Add BitVector::anyCommon().

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The existing operation (A & B).any() is very slow.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156760 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen
2012-05-14 15:01:19 +00:00
parent 734dde8e05
commit 03a3811ab4
2 changed files with 39 additions and 1 deletions
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30
unittests/ADT/BitVectorTest.cpp
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@@ -242,6 +242,34 @@ TEST(BitVectorTest, PortableBitMask) {
A.clearBitsNotInMask(Mask1, 1);
EXPECT_EQ(64-4u, A.count());
}
}
TEST(BitVectorTest, BinOps) {
BitVector A;
BitVector B;
A.resize(65);
EXPECT_FALSE(A.anyCommon(B));
EXPECT_FALSE(B.anyCommon(B));
B.resize(64);
A.set(64);
EXPECT_FALSE(A.anyCommon(B));
EXPECT_FALSE(B.anyCommon(A));
B.set(63);
EXPECT_FALSE(A.anyCommon(B));
EXPECT_FALSE(B.anyCommon(A));
A.set(63);
EXPECT_TRUE(A.anyCommon(B));
EXPECT_TRUE(B.anyCommon(A));
B.resize(70);
B.set(64);
B.reset(63);
A.resize(64);
EXPECT_FALSE(A.anyCommon(B));
EXPECT_FALSE(B.anyCommon(A));
}
}
#endif