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author | Benjamin Kramer <benny.kra@googlemail.com> | 2013-07-11 21:59:16 +0000 |
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committer | Benjamin Kramer <benny.kra@googlemail.com> | 2013-07-11 21:59:16 +0000 |
commit | 459d7bf8f6f1577c67d50c060bff7115d30f9fb9 (patch) | |
tree | 01a168f8ffd72660af8f0c5b33404b06163895a2 | |
parent | 7042aa598dde44ef74eb3ba1ae729729e64c46cf (diff) | |
download | external_llvm-459d7bf8f6f1577c67d50c060bff7115d30f9fb9.zip external_llvm-459d7bf8f6f1577c67d50c060bff7115d30f9fb9.tar.gz external_llvm-459d7bf8f6f1577c67d50c060bff7115d30f9fb9.tar.bz2 |
Sync SmallBitVector with BitVector. Add unit tests for the missing methods.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186123 91177308-0d34-0410-b5e6-96231b3b80d8
-rw-r--r-- | include/llvm/ADT/SmallBitVector.h | 34 | ||||
-rw-r--r-- | unittests/ADT/BitVectorTest.cpp | 36 |
2 files changed, 70 insertions, 0 deletions
diff --git a/include/llvm/ADT/SmallBitVector.h b/include/llvm/ADT/SmallBitVector.h index fe9bef9..86949b2 100644 --- a/include/llvm/ADT/SmallBitVector.h +++ b/include/llvm/ADT/SmallBitVector.h @@ -426,6 +426,40 @@ public: return *this; } + /// reset - Reset bits that are set in RHS. Same as *this &= ~RHS. + SmallBitVector &reset(const SmallBitVector &RHS) { + if (isSmall() && RHS.isSmall()) + setSmallBits(getSmallBits() & ~RHS.getSmallBits()); + else if (!isSmall() && !RHS.isSmall()) + getPointer()->reset(*RHS.getPointer()); + else + for (unsigned i = 0, e = std::min(size(), RHS.size()); i != e; ++i) + if (RHS.test(i)) + reset(i); + + return *this; + } + + /// test - Check if (This - RHS) is zero. + /// This is the same as reset(RHS) and any(). + bool test(const SmallBitVector &RHS) const { + if (isSmall() && RHS.isSmall()) + return (getSmallBits() & ~RHS.getSmallBits()) != 0; + if (!isSmall() && !RHS.isSmall()) + return getPointer()->test(*RHS.getPointer()); + + unsigned i, e; + for (i = 0, e = std::min(size(), RHS.size()); i != e; ++i) + if (test(i) && !RHS.test(i)) + return true; + + for (e = size(); i != e; ++i) + if (test(i)) + return true; + + return false; + } + SmallBitVector &operator|=(const SmallBitVector &RHS) { resize(std::max(size(), RHS.size())); if (isSmall()) diff --git a/unittests/ADT/BitVectorTest.cpp b/unittests/ADT/BitVectorTest.cpp index 85e1594..d7cde89 100644 --- a/unittests/ADT/BitVectorTest.cpp +++ b/unittests/ADT/BitVectorTest.cpp @@ -357,5 +357,41 @@ TYPED_TEST(BitVectorTest, RangeOps) { EXPECT_TRUE( E.test(32)); EXPECT_FALSE(E.test(33)); } + +TYPED_TEST(BitVectorTest, CompoundTestReset) { + TypeParam A(50, true); + TypeParam B(50, false); + + TypeParam C(100, true); + TypeParam D(100, false); + + EXPECT_FALSE(A.test(A)); + EXPECT_TRUE(A.test(B)); + EXPECT_FALSE(A.test(C)); + EXPECT_TRUE(A.test(D)); + EXPECT_FALSE(B.test(A)); + EXPECT_FALSE(B.test(B)); + EXPECT_FALSE(B.test(C)); + EXPECT_FALSE(B.test(D)); + EXPECT_TRUE(C.test(A)); + EXPECT_TRUE(C.test(B)); + EXPECT_FALSE(C.test(C)); + EXPECT_TRUE(C.test(D)); + + A.reset(B); + A.reset(D); + EXPECT_TRUE(A.all()); + A.reset(A); + EXPECT_TRUE(A.none()); + A.set(); + A.reset(C); + EXPECT_TRUE(A.none()); + A.set(); + + C.reset(A); + EXPECT_EQ(50, C.find_first()); + C.reset(C); + EXPECT_TRUE(C.none()); +} } #endif |