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author | Stephen Hines <srhines@google.com> | 2013-08-07 15:07:10 -0700 |
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committer | Stephen Hines <srhines@google.com> | 2013-08-07 15:07:10 -0700 |
commit | fab2daa4a1127ecb217abe2b07c1769122b6fee1 (patch) | |
tree | 268ebfd1963fd98ba412e76819afdf95a7d4267b /include/llvm/ADT/SmallBitVector.h | |
parent | 8197ac1c1a0a91baa70c4dea8cb488f254ef974c (diff) | |
parent | 10251753b6897adcd22cc981c0cc42f348c109de (diff) | |
download | external_llvm-fab2daa4a1127ecb217abe2b07c1769122b6fee1.zip external_llvm-fab2daa4a1127ecb217abe2b07c1769122b6fee1.tar.gz external_llvm-fab2daa4a1127ecb217abe2b07c1769122b6fee1.tar.bz2 |
Merge commit '10251753b6897adcd22cc981c0cc42f348c109de' into merge-20130807
Conflicts:
lib/Archive/ArchiveReader.cpp
lib/Support/Unix/PathV2.inc
Change-Id: I29d8c1e321a4a380b6013f00bac6a8e4b593cc4e
Diffstat (limited to 'include/llvm/ADT/SmallBitVector.h')
-rw-r--r-- | include/llvm/ADT/SmallBitVector.h | 34 |
1 files changed, 34 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()) |