Coverage Report

Created: 2018-11-13 17:19

/Users/buildslave/jenkins/workspace/clang-stage2-coverage-R/llvm/include/llvm/ADT/SparseMultiSet.h
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//===- llvm/ADT/SparseMultiSet.h - Sparse multiset --------------*- C++ -*-===//
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//
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//                     The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines the SparseMultiSet class, which adds multiset behavior to
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// the SparseSet.
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//
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// A sparse multiset holds a small number of objects identified by integer keys
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// from a moderately sized universe. The sparse multiset uses more memory than
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// other containers in order to provide faster operations. Any key can map to
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// multiple values. A SparseMultiSetNode class is provided, which serves as a
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// convenient base class for the contents of a SparseMultiSet.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_ADT_SPARSEMULTISET_H
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#define LLVM_ADT_SPARSEMULTISET_H
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#include "llvm/ADT/STLExtras.h"
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#include "llvm/ADT/SmallVector.h"
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#include "llvm/ADT/SparseSet.h"
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#include <cassert>
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#include <cstdint>
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#include <cstdlib>
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#include <iterator>
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#include <limits>
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#include <utility>
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namespace llvm {
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/// Fast multiset implementation for objects that can be identified by small
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/// unsigned keys.
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///
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/// SparseMultiSet allocates memory proportional to the size of the key
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/// universe, so it is not recommended for building composite data structures.
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/// It is useful for algorithms that require a single set with fast operations.
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///
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/// Compared to DenseSet and DenseMap, SparseMultiSet provides constant-time
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/// fast clear() as fast as a vector.  The find(), insert(), and erase()
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/// operations are all constant time, and typically faster than a hash table.
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/// The iteration order doesn't depend on numerical key values, it only depends
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/// on the order of insert() and erase() operations.  Iteration order is the
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/// insertion order. Iteration is only provided over elements of equivalent
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/// keys, but iterators are bidirectional.
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///
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/// Compared to BitVector, SparseMultiSet<unsigned> uses 8x-40x more memory, but
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/// offers constant-time clear() and size() operations as well as fast iteration
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/// independent on the size of the universe.
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///
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/// SparseMultiSet contains a dense vector holding all the objects and a sparse
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/// array holding indexes into the dense vector.  Most of the memory is used by
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/// the sparse array which is the size of the key universe. The SparseT template
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/// parameter provides a space/speed tradeoff for sets holding many elements.
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///
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/// When SparseT is uint32_t, find() only touches up to 3 cache lines, but the
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/// sparse array uses 4 x Universe bytes.
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///
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/// When SparseT is uint8_t (the default), find() touches up to 3+[N/256] cache
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/// lines, but the sparse array is 4x smaller.  N is the number of elements in
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/// the set.
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///
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/// For sets that may grow to thousands of elements, SparseT should be set to
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/// uint16_t or uint32_t.
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///
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/// Multiset behavior is provided by providing doubly linked lists for values
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/// that are inlined in the dense vector. SparseMultiSet is a good choice when
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/// one desires a growable number of entries per key, as it will retain the
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/// SparseSet algorithmic properties despite being growable. Thus, it is often a
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/// better choice than a SparseSet of growable containers or a vector of
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/// vectors. SparseMultiSet also keeps iterators valid after erasure (provided
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/// the iterators don't point to the element erased), allowing for more
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/// intuitive and fast removal.
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///
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/// @tparam ValueT      The type of objects in the set.
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/// @tparam KeyFunctorT A functor that computes an unsigned index from KeyT.
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/// @tparam SparseT     An unsigned integer type. See above.
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///
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template<typename ValueT,
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         typename KeyFunctorT = identity<unsigned>,
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         typename SparseT = uint8_t>
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class SparseMultiSet {
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  static_assert(std::numeric_limits<SparseT>::is_integer &&
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                !std::numeric_limits<SparseT>::is_signed,
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                "SparseT must be an unsigned integer type");
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  /// The actual data that's stored, as a doubly-linked list implemented via
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  /// indices into the DenseVector.  The doubly linked list is implemented
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  /// circular in Prev indices, and INVALID-terminated in Next indices. This
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  /// provides efficient access to list tails. These nodes can also be
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  /// tombstones, in which case they are actually nodes in a single-linked
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  /// freelist of recyclable slots.
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  struct SMSNode {
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    static const unsigned INVALID = ~0U;
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    ValueT Data;
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    unsigned Prev;
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    unsigned Next;
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29.7M
    SMSNode(ValueT D, unsigned P, unsigned N) : Data(D), Prev(P), Next(N) {}
llvm::SparseMultiSet<llvm::VReg2SUnit, llvm::VirtReg2IndexFunctor, unsigned char>::SMSNode::SMSNode(llvm::VReg2SUnit, unsigned int, unsigned int)
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4.64M
    SMSNode(ValueT D, unsigned P, unsigned N) : Data(D), Prev(P), Next(N) {}
llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short>::SMSNode::SMSNode(llvm::PhysRegSUOper, unsigned int, unsigned int)
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104
13.5M
    SMSNode(ValueT D, unsigned P, unsigned N) : Data(D), Prev(P), Next(N) {}
llvm::SparseMultiSet<llvm::VReg2SUnitOperIdx, llvm::VirtReg2IndexFunctor, unsigned char>::SMSNode::SMSNode(llvm::VReg2SUnitOperIdx, unsigned int, unsigned int)
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11.6M
    SMSNode(ValueT D, unsigned P, unsigned N) : Data(D), Prev(P), Next(N) {}
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    /// List tails have invalid Nexts.
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39.3M
    bool isTail() const {
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39.3M
      return Next == INVALID;
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39.3M
    }
llvm::SparseMultiSet<llvm::VReg2SUnit, llvm::VirtReg2IndexFunctor, unsigned char>::SMSNode::isTail() const
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6.59M
    bool isTail() const {
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6.59M
      return Next == INVALID;
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6.59M
    }
llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short>::SMSNode::isTail() const
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24.6M
    bool isTail() const {
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24.6M
      return Next == INVALID;
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24.6M
    }
llvm::SparseMultiSet<llvm::VReg2SUnitOperIdx, llvm::VirtReg2IndexFunctor, unsigned char>::SMSNode::isTail() const
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107
8.04M
    bool isTail() const {
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8.04M
      return Next == INVALID;
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8.04M
    }
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    /// Whether this node is a tombstone node, and thus is in our freelist.
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    bool isTombstone() const {
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      return Prev == INVALID;
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    }
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    /// Since the list is circular in Prev, all non-tombstone nodes have a valid
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    /// Prev.
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39.3M
    bool isValid() const { return Prev != INVALID; }
llvm::SparseMultiSet<llvm::VReg2SUnit, llvm::VirtReg2IndexFunctor, unsigned char>::SMSNode::isValid() const
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118
6.59M
    bool isValid() const { return Prev != INVALID; }
llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short>::SMSNode::isValid() const
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118
25.5M
    bool isValid() const { return Prev != INVALID; }
llvm::SparseMultiSet<llvm::VReg2SUnitOperIdx, llvm::VirtReg2IndexFunctor, unsigned char>::SMSNode::isValid() const
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118
7.26M
    bool isValid() const { return Prev != INVALID; }
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  };
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  using KeyT = typename KeyFunctorT::argument_type;
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  using DenseT = SmallVector<SMSNode, 8>;
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  DenseT Dense;
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  SparseT *Sparse = nullptr;
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  unsigned Universe = 0;
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  KeyFunctorT KeyIndexOf;
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  SparseSetValFunctor<KeyT, ValueT, KeyFunctorT> ValIndexOf;
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  /// We have a built-in recycler for reusing tombstone slots. This recycler
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  /// puts a singly-linked free list into tombstone slots, allowing us quick
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  /// erasure, iterator preservation, and dense size.
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  unsigned FreelistIdx = SMSNode::INVALID;
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  unsigned NumFree = 0;
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146M
  unsigned sparseIndex(const ValueT &Val) const {
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146M
    assert(ValIndexOf(Val) < Universe &&
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146M
           "Invalid key in set. Did object mutate?");
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146M
    return ValIndexOf(Val);
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146M
  }
llvm::SparseMultiSet<llvm::VReg2SUnit, llvm::VirtReg2IndexFunctor, unsigned char>::sparseIndex(llvm::VReg2SUnit const&) const
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135
19.4M
  unsigned sparseIndex(const ValueT &Val) const {
136
19.4M
    assert(ValIndexOf(Val) < Universe &&
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19.4M
           "Invalid key in set. Did object mutate?");
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19.4M
    return ValIndexOf(Val);
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19.4M
  }
llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short>::sparseIndex(llvm::PhysRegSUOper const&) const
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135
100M
  unsigned sparseIndex(const ValueT &Val) const {
136
100M
    assert(ValIndexOf(Val) < Universe &&
137
100M
           "Invalid key in set. Did object mutate?");
138
100M
    return ValIndexOf(Val);
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100M
  }
llvm::SparseMultiSet<llvm::VReg2SUnitOperIdx, llvm::VirtReg2IndexFunctor, unsigned char>::sparseIndex(llvm::VReg2SUnitOperIdx const&) const
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135
26.4M
  unsigned sparseIndex(const ValueT &Val) const {
136
26.4M
    assert(ValIndexOf(Val) < Universe &&
137
26.4M
           "Invalid key in set. Did object mutate?");
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26.4M
    return ValIndexOf(Val);
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26.4M
  }
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116M
  unsigned sparseIndex(const SMSNode &N) const { return sparseIndex(N.Data); }
llvm::SparseMultiSet<llvm::VReg2SUnit, llvm::VirtReg2IndexFunctor, unsigned char>::sparseIndex(llvm::SparseMultiSet<llvm::VReg2SUnit, llvm::VirtReg2IndexFunctor, unsigned char>::SMSNode const&) const
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140
14.8M
  unsigned sparseIndex(const SMSNode &N) const { return sparseIndex(N.Data); }
llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short>::sparseIndex(llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short>::SMSNode const&) const
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140
86.7M
  unsigned sparseIndex(const SMSNode &N) const { return sparseIndex(N.Data); }
llvm::SparseMultiSet<llvm::VReg2SUnitOperIdx, llvm::VirtReg2IndexFunctor, unsigned char>::sparseIndex(llvm::SparseMultiSet<llvm::VReg2SUnitOperIdx, llvm::VirtReg2IndexFunctor, unsigned char>::SMSNode const&) const
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140
14.8M
  unsigned sparseIndex(const SMSNode &N) const { return sparseIndex(N.Data); }
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  /// Whether the given entry is the head of the list. List heads's previous
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  /// pointers are to the tail of the list, allowing for efficient access to the
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  /// list tail. D must be a valid entry node.
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39.3M
  bool isHead(const SMSNode &D) const {
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39.3M
    assert(D.isValid() && "Invalid node for head");
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39.3M
    return Dense[D.Prev].isTail();
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39.3M
  }
llvm::SparseMultiSet<llvm::VReg2SUnit, llvm::VirtReg2IndexFunctor, unsigned char>::isHead(llvm::SparseMultiSet<llvm::VReg2SUnit, llvm::VirtReg2IndexFunctor, unsigned char>::SMSNode const&) const
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145
6.59M
  bool isHead(const SMSNode &D) const {
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6.59M
    assert(D.isValid() && "Invalid node for head");
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6.59M
    return Dense[D.Prev].isTail();
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6.59M
  }
llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short>::isHead(llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short>::SMSNode const&) const
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145
24.6M
  bool isHead(const SMSNode &D) const {
146
24.6M
    assert(D.isValid() && "Invalid node for head");
147
24.6M
    return Dense[D.Prev].isTail();
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24.6M
  }
llvm::SparseMultiSet<llvm::VReg2SUnitOperIdx, llvm::VirtReg2IndexFunctor, unsigned char>::isHead(llvm::SparseMultiSet<llvm::VReg2SUnitOperIdx, llvm::VirtReg2IndexFunctor, unsigned char>::SMSNode const&) const
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145
8.03M
  bool isHead(const SMSNode &D) const {
146
8.03M
    assert(D.isValid() && "Invalid node for head");
147
8.03M
    return Dense[D.Prev].isTail();
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8.03M
  }
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  /// Whether the given entry is a singleton entry, i.e. the only entry with
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  /// that key.
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11.0M
  bool isSingleton(const SMSNode &N) const {
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11.0M
    assert(N.isValid() && "Invalid node for singleton");
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11.0M
    // Is N its own predecessor?
155
11.0M
    return &Dense[N.Prev] == &N;
156
11.0M
  }
llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short>::isSingleton(llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short>::SMSNode const&) const
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152
5.21M
  bool isSingleton(const SMSNode &N) const {
153
5.21M
    assert(N.isValid() && "Invalid node for singleton");
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5.21M
    // Is N its own predecessor?
155
5.21M
    return &Dense[N.Prev] == &N;
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5.21M
  }
llvm::SparseMultiSet<llvm::VReg2SUnitOperIdx, llvm::VirtReg2IndexFunctor, unsigned char>::isSingleton(llvm::SparseMultiSet<llvm::VReg2SUnitOperIdx, llvm::VirtReg2IndexFunctor, unsigned char>::SMSNode const&) const
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152
5.80M
  bool isSingleton(const SMSNode &N) const {
153
5.80M
    assert(N.isValid() && "Invalid node for singleton");
154
5.80M
    // Is N its own predecessor?
155
5.80M
    return &Dense[N.Prev] == &N;
156
5.80M
  }
157
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  /// Add in the given SMSNode. Uses a free entry in our freelist if
159
  /// available. Returns the index of the added node.
160
29.7M
  unsigned addValue(const ValueT& V, unsigned Prev, unsigned Next) {
161
29.7M
    if (NumFree == 0) {
162
24.4M
      Dense.push_back(SMSNode(V, Prev, Next));
163
24.4M
      return Dense.size() - 1;
164
24.4M
    }
165
5.36M
166
5.36M
    // Peel off a free slot
167
5.36M
    unsigned Idx = FreelistIdx;
168
5.36M
    unsigned NextFree = Dense[Idx].Next;
169
5.36M
    assert(Dense[Idx].isTombstone() && "Non-tombstone free?");
170
5.36M
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5.36M
    Dense[Idx] = SMSNode(V, Prev, Next);
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5.36M
    FreelistIdx = NextFree;
173
5.36M
    --NumFree;
174
5.36M
    return Idx;
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5.36M
  }
llvm::SparseMultiSet<llvm::VReg2SUnit, llvm::VirtReg2IndexFunctor, unsigned char>::addValue(llvm::VReg2SUnit const&, unsigned int, unsigned int)
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160
4.64M
  unsigned addValue(const ValueT& V, unsigned Prev, unsigned Next) {
161
4.64M
    if (NumFree == 0) {
162
4.64M
      Dense.push_back(SMSNode(V, Prev, Next));
163
4.64M
      return Dense.size() - 1;
164
4.64M
    }
165
0
166
0
    // Peel off a free slot
167
0
    unsigned Idx = FreelistIdx;
168
0
    unsigned NextFree = Dense[Idx].Next;
169
0
    assert(Dense[Idx].isTombstone() && "Non-tombstone free?");
170
0
171
0
    Dense[Idx] = SMSNode(V, Prev, Next);
172
0
    FreelistIdx = NextFree;
173
0
    --NumFree;
174
0
    return Idx;
175
0
  }
llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short>::addValue(llvm::PhysRegSUOper const&, unsigned int, unsigned int)
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160
13.5M
  unsigned addValue(const ValueT& V, unsigned Prev, unsigned Next) {
161
13.5M
    if (NumFree == 0) {
162
11.9M
      Dense.push_back(SMSNode(V, Prev, Next));
163
11.9M
      return Dense.size() - 1;
164
11.9M
    }
165
1.61M
166
1.61M
    // Peel off a free slot
167
1.61M
    unsigned Idx = FreelistIdx;
168
1.61M
    unsigned NextFree = Dense[Idx].Next;
169
1.61M
    assert(Dense[Idx].isTombstone() && "Non-tombstone free?");
170
1.61M
171
1.61M
    Dense[Idx] = SMSNode(V, Prev, Next);
172
1.61M
    FreelistIdx = NextFree;
173
1.61M
    --NumFree;
174
1.61M
    return Idx;
175
1.61M
  }
llvm::SparseMultiSet<llvm::VReg2SUnitOperIdx, llvm::VirtReg2IndexFunctor, unsigned char>::addValue(llvm::VReg2SUnitOperIdx const&, unsigned int, unsigned int)
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160
11.6M
  unsigned addValue(const ValueT& V, unsigned Prev, unsigned Next) {
161
11.6M
    if (NumFree == 0) {
162
7.86M
      Dense.push_back(SMSNode(V, Prev, Next));
163
7.86M
      return Dense.size() - 1;
164
7.86M
    }
165
3.74M
166
3.74M
    // Peel off a free slot
167
3.74M
    unsigned Idx = FreelistIdx;
168
3.74M
    unsigned NextFree = Dense[Idx].Next;
169
3.74M
    assert(Dense[Idx].isTombstone() && "Non-tombstone free?");
170
3.74M
171
3.74M
    Dense[Idx] = SMSNode(V, Prev, Next);
172
3.74M
    FreelistIdx = NextFree;
173
3.74M
    --NumFree;
174
3.74M
    return Idx;
175
3.74M
  }
176
177
  /// Make the current index a new tombstone. Pushes it onto the freelist.
178
11.0M
  void makeTombstone(unsigned Idx) {
179
11.0M
    Dense[Idx].Prev = SMSNode::INVALID;
180
11.0M
    Dense[Idx].Next = FreelistIdx;
181
11.0M
    FreelistIdx = Idx;
182
11.0M
    ++NumFree;
183
11.0M
  }
llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short>::makeTombstone(unsigned int)
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178
5.21M
  void makeTombstone(unsigned Idx) {
179
5.21M
    Dense[Idx].Prev = SMSNode::INVALID;
180
5.21M
    Dense[Idx].Next = FreelistIdx;
181
5.21M
    FreelistIdx = Idx;
182
5.21M
    ++NumFree;
183
5.21M
  }
llvm::SparseMultiSet<llvm::VReg2SUnitOperIdx, llvm::VirtReg2IndexFunctor, unsigned char>::makeTombstone(unsigned int)
Line
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Source
178
5.80M
  void makeTombstone(unsigned Idx) {
179
5.80M
    Dense[Idx].Prev = SMSNode::INVALID;
180
5.80M
    Dense[Idx].Next = FreelistIdx;
181
5.80M
    FreelistIdx = Idx;
182
5.80M
    ++NumFree;
183
5.80M
  }
184
185
public:
186
  using value_type = ValueT;
187
  using reference = ValueT &;
188
  using const_reference = const ValueT &;
189
  using pointer = ValueT *;
190
  using const_pointer = const ValueT *;
191
  using size_type = unsigned;
192
193
2.45M
  SparseMultiSet() = default;
llvm::SparseMultiSet<llvm::VReg2SUnit, llvm::VirtReg2IndexFunctor, unsigned char>::SparseMultiSet()
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193
937k
  SparseMultiSet() = default;
llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short>::SparseMultiSet()
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193
1.01M
  SparseMultiSet() = default;
llvm::SparseMultiSet<llvm::VReg2SUnitOperIdx, llvm::VirtReg2IndexFunctor, unsigned char>::SparseMultiSet()
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193
505k
  SparseMultiSet() = default;
194
  SparseMultiSet(const SparseMultiSet &) = delete;
195
  SparseMultiSet &operator=(const SparseMultiSet &) = delete;
196
2.45M
  ~SparseMultiSet() { free(Sparse); }
llvm::SparseMultiSet<llvm::VReg2SUnitOperIdx, llvm::VirtReg2IndexFunctor, unsigned char>::~SparseMultiSet()
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196
505k
  ~SparseMultiSet() { free(Sparse); }
llvm::SparseMultiSet<llvm::VReg2SUnit, llvm::VirtReg2IndexFunctor, unsigned char>::~SparseMultiSet()
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196
937k
  ~SparseMultiSet() { free(Sparse); }
llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short>::~SparseMultiSet()
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196
1.01M
  ~SparseMultiSet() { free(Sparse); }
197
198
  /// Set the universe size which determines the largest key the set can hold.
199
  /// The universe must be sized before any elements can be added.
200
  ///
201
  /// @param U Universe size. All object keys must be less than U.
202
  ///
203
12.2M
  void setUniverse(unsigned U) {
204
12.2M
    // It's not hard to resize the universe on a non-empty set, but it doesn't
205
12.2M
    // seem like a likely use case, so we can add that code when we need it.
206
12.2M
    assert(empty() && "Can only resize universe on an empty map");
207
12.2M
    // Hysteresis prevents needless reallocations.
208
12.2M
    if (U >= Universe/4 && U <= Universe)
209
10.4M
      return;
210
1.84M
    free(Sparse);
211
1.84M
    // The Sparse array doesn't actually need to be initialized, so malloc
212
1.84M
    // would be enough here, but that will cause tools like valgrind to
213
1.84M
    // complain about branching on uninitialized data.
214
1.84M
    Sparse = static_cast<SparseT*>(safe_calloc(U, sizeof(SparseT)));
215
1.84M
    Universe = U;
216
1.84M
  }
llvm::SparseMultiSet<llvm::VReg2SUnit, llvm::VirtReg2IndexFunctor, unsigned char>::setUniverse(unsigned int)
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Source
203
3.17M
  void setUniverse(unsigned U) {
204
3.17M
    // It's not hard to resize the universe on a non-empty set, but it doesn't
205
3.17M
    // seem like a likely use case, so we can add that code when we need it.
206
3.17M
    assert(empty() && "Can only resize universe on an empty map");
207
3.17M
    // Hysteresis prevents needless reallocations.
208
3.17M
    if (U >= Universe/4 && U <= Universe)
209
2.67M
      return;
210
505k
    free(Sparse);
211
505k
    // The Sparse array doesn't actually need to be initialized, so malloc
212
505k
    // would be enough here, but that will cause tools like valgrind to
213
505k
    // complain about branching on uninitialized data.
214
505k
    Sparse = static_cast<SparseT*>(safe_calloc(U, sizeof(SparseT)));
215
505k
    Universe = U;
216
505k
  }
llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short>::setUniverse(unsigned int)
Line
Count
Source
203
6.05M
  void setUniverse(unsigned U) {
204
6.05M
    // It's not hard to resize the universe on a non-empty set, but it doesn't
205
6.05M
    // seem like a likely use case, so we can add that code when we need it.
206
6.05M
    assert(empty() && "Can only resize universe on an empty map");
207
6.05M
    // Hysteresis prevents needless reallocations.
208
6.05M
    if (U >= Universe/4 && U <= Universe)
209
5.11M
      return;
210
938k
    free(Sparse);
211
938k
    // The Sparse array doesn't actually need to be initialized, so malloc
212
938k
    // would be enough here, but that will cause tools like valgrind to
213
938k
    // complain about branching on uninitialized data.
214
938k
    Sparse = static_cast<SparseT*>(safe_calloc(U, sizeof(SparseT)));
215
938k
    Universe = U;
216
938k
  }
llvm::SparseMultiSet<llvm::VReg2SUnitOperIdx, llvm::VirtReg2IndexFunctor, unsigned char>::setUniverse(unsigned int)
Line
Count
Source
203
3.02M
  void setUniverse(unsigned U) {
204
3.02M
    // It's not hard to resize the universe on a non-empty set, but it doesn't
205
3.02M
    // seem like a likely use case, so we can add that code when we need it.
206
3.02M
    assert(empty() && "Can only resize universe on an empty map");
207
3.02M
    // Hysteresis prevents needless reallocations.
208
3.02M
    if (U >= Universe/4 && U <= Universe)
209
2.62M
      return;
210
403k
    free(Sparse);
211
403k
    // The Sparse array doesn't actually need to be initialized, so malloc
212
403k
    // would be enough here, but that will cause tools like valgrind to
213
403k
    // complain about branching on uninitialized data.
214
403k
    Sparse = static_cast<SparseT*>(safe_calloc(U, sizeof(SparseT)));
215
403k
    Universe = U;
216
403k
  }
217
218
  /// Our iterators are iterators over the collection of objects that share a
219
  /// key.
220
  template<typename SMSPtrTy>
221
  class iterator_base : public std::iterator<std::bidirectional_iterator_tag,
222
                                             ValueT> {
223
    friend class SparseMultiSet;
224
225
    SMSPtrTy SMS;
226
    unsigned Idx;
227
    unsigned SparseIdx;
228
229
    iterator_base(SMSPtrTy P, unsigned I, unsigned SI)
230
477M
      : SMS(P), Idx(I), SparseIdx(SI) {}
llvm::SparseMultiSet<llvm::VReg2SUnit, llvm::VirtReg2IndexFunctor, unsigned char>::iterator_base<llvm::SparseMultiSet<llvm::VReg2SUnit, llvm::VirtReg2IndexFunctor, unsigned char>*>::iterator_base(llvm::SparseMultiSet<llvm::VReg2SUnit, llvm::VirtReg2IndexFunctor, unsigned char>*, unsigned int, unsigned int)
Line
Count
Source
230
75.6M
      : SMS(P), Idx(I), SparseIdx(SI) {}
llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short>::iterator_base<llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short>*>::iterator_base(llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short>*, unsigned int, unsigned int)
Line
Count
Source
230
182M
      : SMS(P), Idx(I), SparseIdx(SI) {}
llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short>::iterator_base<llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short> const*>::iterator_base(llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short> const*, unsigned int, unsigned int)
Line
Count
Source
230
164M
      : SMS(P), Idx(I), SparseIdx(SI) {}
llvm::SparseMultiSet<llvm::VReg2SUnitOperIdx, llvm::VirtReg2IndexFunctor, unsigned char>::iterator_base<llvm::SparseMultiSet<llvm::VReg2SUnitOperIdx, llvm::VirtReg2IndexFunctor, unsigned char>*>::iterator_base(llvm::SparseMultiSet<llvm::VReg2SUnitOperIdx, llvm::VirtReg2IndexFunctor, unsigned char>*, unsigned int, unsigned int)
Line
Count
Source
230
54.4M
      : SMS(P), Idx(I), SparseIdx(SI) {}
231
232
    /// Whether our iterator has fallen outside our dense vector.
233
1.10k
    bool isEnd() const {
234
1.10k
      if (Idx == SMSNode::INVALID)
235
1.10k
        return true;
236
0
237
0
      assert(Idx < SMS->Dense.size() && "Out of range, non-INVALID Idx?");
238
0
      return false;
239
0
    }
240
241
    /// Whether our iterator is properly keyed, i.e. the SparseIdx is valid
242
    bool isKeyed() const { return SparseIdx < SMS->Universe; }
243
244
4.59M
    unsigned Prev() const { return SMS->Dense[Idx].Prev; }
llvm::SparseMultiSet<llvm::VReg2SUnit, llvm::VirtReg2IndexFunctor, unsigned char>::iterator_base<llvm::SparseMultiSet<llvm::VReg2SUnit, llvm::VirtReg2IndexFunctor, unsigned char>*>::Prev() const
Line
Count
Source
244
1.75M
    unsigned Prev() const { return SMS->Dense[Idx].Prev; }
llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short>::iterator_base<llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short>*>::Prev() const
Line
Count
Source
244
685k
    unsigned Prev() const { return SMS->Dense[Idx].Prev; }
llvm::SparseMultiSet<llvm::VReg2SUnitOperIdx, llvm::VirtReg2IndexFunctor, unsigned char>::iterator_base<llvm::SparseMultiSet<llvm::VReg2SUnitOperIdx, llvm::VirtReg2IndexFunctor, unsigned char>*>::Prev() const
Line
Count
Source
244
2.15M
    unsigned Prev() const { return SMS->Dense[Idx].Prev; }
245
36.3M
    unsigned Next() const { return SMS->Dense[Idx].Next; }
llvm::SparseMultiSet<llvm::VReg2SUnit, llvm::VirtReg2IndexFunctor, unsigned char>::iterator_base<llvm::SparseMultiSet<llvm::VReg2SUnit, llvm::VirtReg2IndexFunctor, unsigned char>*>::Next() const
Line
Count
Source
245
27.1M
    unsigned Next() const { return SMS->Dense[Idx].Next; }
llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short>::iterator_base<llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short>*>::Next() const
Line
Count
Source
245
9.00M
    unsigned Next() const { return SMS->Dense[Idx].Next; }
llvm::SparseMultiSet<llvm::VReg2SUnitOperIdx, llvm::VirtReg2IndexFunctor, unsigned char>::iterator_base<llvm::SparseMultiSet<llvm::VReg2SUnitOperIdx, llvm::VirtReg2IndexFunctor, unsigned char>*>::Next() const
Line
Count
Source
245
156k
    unsigned Next() const { return SMS->Dense[Idx].Next; }
246
247
3.53k
    void setPrev(unsigned P) { SMS->Dense[Idx].Prev = P; }
llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short>::iterator_base<llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short>*>::setPrev(unsigned int)
Line
Count
Source
247
164
    void setPrev(unsigned P) { SMS->Dense[Idx].Prev = P; }
llvm::SparseMultiSet<llvm::VReg2SUnitOperIdx, llvm::VirtReg2IndexFunctor, unsigned char>::iterator_base<llvm::SparseMultiSet<llvm::VReg2SUnitOperIdx, llvm::VirtReg2IndexFunctor, unsigned char>*>::setPrev(unsigned int)
Line
Count
Source
247
3.37k
    void setPrev(unsigned P) { SMS->Dense[Idx].Prev = P; }
248
    void setNext(unsigned N) { SMS->Dense[Idx].Next = N; }
249
250
  public:
251
    using super = std::iterator<std::bidirectional_iterator_tag, ValueT>;
252
    using value_type = typename super::value_type;
253
    using difference_type = typename super::difference_type;
254
    using pointer = typename super::pointer;
255
    using reference = typename super::reference;
256
257
59.6M
    reference operator*() const {
258
59.6M
      assert(isKeyed() && SMS->sparseIndex(SMS->Dense[Idx].Data) == SparseIdx &&
259
59.6M
             "Dereferencing iterator of invalid key or index");
260
59.6M
261
59.6M
      return SMS->Dense[Idx].Data;
262
59.6M
    }
llvm::SparseMultiSet<llvm::VReg2SUnit, llvm::VirtReg2IndexFunctor, unsigned char>::iterator_base<llvm::SparseMultiSet<llvm::VReg2SUnit, llvm::VirtReg2IndexFunctor, unsigned char>*>::operator*() const
Line
Count
Source
257
27.2M
    reference operator*() const {
258
27.2M
      assert(isKeyed() && SMS->sparseIndex(SMS->Dense[Idx].Data) == SparseIdx &&
259
27.2M
             "Dereferencing iterator of invalid key or index");
260
27.2M
261
27.2M
      return SMS->Dense[Idx].Data;
262
27.2M
    }
llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short>::iterator_base<llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short>*>::operator*() const
Line
Count
Source
257
14.5M
    reference operator*() const {
258
14.5M
      assert(isKeyed() && SMS->sparseIndex(SMS->Dense[Idx].Data) == SparseIdx &&
259
14.5M
             "Dereferencing iterator of invalid key or index");
260
14.5M
261
14.5M
      return SMS->Dense[Idx].Data;
262
14.5M
    }
llvm::SparseMultiSet<llvm::VReg2SUnitOperIdx, llvm::VirtReg2IndexFunctor, unsigned char>::iterator_base<llvm::SparseMultiSet<llvm::VReg2SUnitOperIdx, llvm::VirtReg2IndexFunctor, unsigned char>*>::operator*() const
Line
Count
Source
257
17.8M
    reference operator*() const {
258
17.8M
      assert(isKeyed() && SMS->sparseIndex(SMS->Dense[Idx].Data) == SparseIdx &&
259
17.8M
             "Dereferencing iterator of invalid key or index");
260
17.8M
261
17.8M
      return SMS->Dense[Idx].Data;
262
17.8M
    }
263
53.4M
    pointer operator->() const { return &operator*(); }
llvm::SparseMultiSet<llvm::VReg2SUnit, llvm::VirtReg2IndexFunctor, unsigned char>::iterator_base<llvm::SparseMultiSet<llvm::VReg2SUnit, llvm::VirtReg2IndexFunctor, unsigned char>*>::operator->() const
Line
Count
Source
263
20.9M
    pointer operator->() const { return &operator*(); }
llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short>::iterator_base<llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short>*>::operator->() const
Line
Count
Source
263
14.5M
    pointer operator->() const { return &operator*(); }
llvm::SparseMultiSet<llvm::VReg2SUnitOperIdx, llvm::VirtReg2IndexFunctor, unsigned char>::iterator_base<llvm::SparseMultiSet<llvm::VReg2SUnitOperIdx, llvm::VirtReg2IndexFunctor, unsigned char>*>::operator->() const
Line
Count
Source
263
17.8M
    pointer operator->() const { return &operator*(); }
264
265
    /// Comparison operators
266
208M
    bool operator==(const iterator_base &RHS) const {
267
208M
      // end compares equal
268
208M
      if (SMS == RHS.SMS && 
Idx == RHS.Idx208M
) {
269
144M
        assert((isEnd() || SparseIdx == RHS.SparseIdx) &&
270
144M
               "Same dense entry, but different keys?");
271
144M
        return true;
272
144M
      }
273
63.8M
274
63.8M
      return false;
275
63.8M
    }
llvm::SparseMultiSet<llvm::VReg2SUnit, llvm::VirtReg2IndexFunctor, unsigned char>::iterator_base<llvm::SparseMultiSet<llvm::VReg2SUnit, llvm::VirtReg2IndexFunctor, unsigned char>*>::operator==(llvm::SparseMultiSet<llvm::VReg2SUnit, llvm::VirtReg2IndexFunctor, unsigned char>::iterator_base<llvm::SparseMultiSet<llvm::VReg2SUnit, llvm::VirtReg2IndexFunctor, unsigned char>*> const&) const
Line
Count
Source
266
53.8M
    bool operator==(const iterator_base &RHS) const {
267
53.8M
      // end compares equal
268
53.8M
      if (SMS == RHS.SMS && Idx == RHS.Idx) {
269
24.7M
        assert((isEnd() || SparseIdx == RHS.SparseIdx) &&
270
24.7M
               "Same dense entry, but different keys?");
271
24.7M
        return true;
272
24.7M
      }
273
29.0M
274
29.0M
      return false;
275
29.0M
    }
llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short>::iterator_base<llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short> const*>::operator==(llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short>::iterator_base<llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short> const*> const&) const
Line
Count
Source
266
82.3M
    bool operator==(const iterator_base &RHS) const {
267
82.3M
      // end compares equal
268
82.3M
      if (SMS == RHS.SMS && 
Idx == RHS.Idx82.3M
) {
269
70.5M
        assert((isEnd() || SparseIdx == RHS.SparseIdx) &&
270
70.5M
               "Same dense entry, but different keys?");
271
70.5M
        return true;
272
70.5M
      }
273
11.7M
274
11.7M
      return false;
275
11.7M
    }
llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short>::iterator_base<llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short>*>::operator==(llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short>::iterator_base<llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short>*> const&) const
Line
Count
Source
266
47.9M
    bool operator==(const iterator_base &RHS) const {
267
47.9M
      // end compares equal
268
47.9M
      if (SMS == RHS.SMS && 
Idx == RHS.Idx47.9M
) {
269
33.0M
        assert((isEnd() || SparseIdx == RHS.SparseIdx) &&
270
33.0M
               "Same dense entry, but different keys?");
271
33.0M
        return true;
272
33.0M
      }
273
14.9M
274
14.9M
      return false;
275
14.9M
    }
llvm::SparseMultiSet<llvm::VReg2SUnitOperIdx, llvm::VirtReg2IndexFunctor, unsigned char>::iterator_base<llvm::SparseMultiSet<llvm::VReg2SUnitOperIdx, llvm::VirtReg2IndexFunctor, unsigned char>*>::operator==(llvm::SparseMultiSet<llvm::VReg2SUnitOperIdx, llvm::VirtReg2IndexFunctor, unsigned char>::iterator_base<llvm::SparseMultiSet<llvm::VReg2SUnitOperIdx, llvm::VirtReg2IndexFunctor, unsigned char>*> const&) const
Line
Count
Source
266
24.4M
    bool operator==(const iterator_base &RHS) const {
267
24.4M
      // end compares equal
268
24.4M
      if (SMS == RHS.SMS && Idx == RHS.Idx) {
269
16.3M
        assert((isEnd() || SparseIdx == RHS.SparseIdx) &&
270
16.3M
               "Same dense entry, but different keys?");
271
16.3M
        return true;
272
16.3M
      }
273
8.10M
274
8.10M
      return false;
275
8.10M
    }
276
277
175M
    bool operator!=(const iterator_base &RHS) const {
278
175M
      return !operator==(RHS);
279
175M
    }
llvm::SparseMultiSet<llvm::VReg2SUnit, llvm::VirtReg2IndexFunctor, unsigned char>::iterator_base<llvm::SparseMultiSet<llvm::VReg2SUnit, llvm::VirtReg2IndexFunctor, unsigned char>*>::operator!=(llvm::SparseMultiSet<llvm::VReg2SUnit, llvm::VirtReg2IndexFunctor, unsigned char>::iterator_base<llvm::SparseMultiSet<llvm::VReg2SUnit, llvm::VirtReg2IndexFunctor, unsigned char>*> const&) const
Line
Count
Source
277
45.9M
    bool operator!=(const iterator_base &RHS) const {
278
45.9M
      return !operator==(RHS);
279
45.9M
    }
llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short>::iterator_base<llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short> const*>::operator!=(llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short>::iterator_base<llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short> const*> const&) const
Line
Count
Source
277
82.3M
    bool operator!=(const iterator_base &RHS) const {
278
82.3M
      return !operator==(RHS);
279
82.3M
    }
llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short>::iterator_base<llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short>*>::operator!=(llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short>::iterator_base<llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short>*> const&) const
Line
Count
Source
277
34.4M
    bool operator!=(const iterator_base &RHS) const {
278
34.4M
      return !operator==(RHS);
279
34.4M
    }
llvm::SparseMultiSet<llvm::VReg2SUnitOperIdx, llvm::VirtReg2IndexFunctor, unsigned char>::iterator_base<llvm::SparseMultiSet<llvm::VReg2SUnitOperIdx, llvm::VirtReg2IndexFunctor, unsigned char>*>::operator!=(llvm::SparseMultiSet<llvm::VReg2SUnitOperIdx, llvm::VirtReg2IndexFunctor, unsigned char>::iterator_base<llvm::SparseMultiSet<llvm::VReg2SUnitOperIdx, llvm::VirtReg2IndexFunctor, unsigned char>*> const&) const
Line
Count
Source
277
12.8M
    bool operator!=(const iterator_base &RHS) const {
278
12.8M
      return !operator==(RHS);
279
12.8M
    }
280
281
    /// Increment and decrement operators
282
1.10k
    iterator_base &operator--() { // predecrement - Back up
283
1.10k
      assert(isKeyed() && "Decrementing an invalid iterator");
284
1.10k
      assert((isEnd() || !SMS->isHead(SMS->Dense[Idx])) &&
285
1.10k
             "Decrementing head of list");
286
1.10k
287
1.10k
      // If we're at the end, then issue a new find()
288
1.10k
      if (isEnd())
289
1.10k
        Idx = SMS->findIndex(SparseIdx).Prev();
290
0
      else
291
0
        Idx = Prev();
292
1.10k
293
1.10k
      return *this;
294
1.10k
    }
295
36.3M
    iterator_base &operator++() { // preincrement - Advance
296
36.3M
      assert(!isEnd() && isKeyed() && "Incrementing an invalid/end iterator");
297
36.3M
      Idx = Next();
298
36.3M
      return *this;
299
36.3M
    }
llvm::SparseMultiSet<llvm::VReg2SUnit, llvm::VirtReg2IndexFunctor, unsigned char>::iterator_base<llvm::SparseMultiSet<llvm::VReg2SUnit, llvm::VirtReg2IndexFunctor, unsigned char>*>::operator++()
Line
Count
Source
295
27.1M
    iterator_base &operator++() { // preincrement - Advance
296
27.1M
      assert(!isEnd() && isKeyed() && "Incrementing an invalid/end iterator");
297
27.1M
      Idx = Next();
298
27.1M
      return *this;
299
27.1M
    }
llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short>::iterator_base<llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short>*>::operator++()
Line
Count
Source
295
9.00M
    iterator_base &operator++() { // preincrement - Advance
296
9.00M
      assert(!isEnd() && isKeyed() && "Incrementing an invalid/end iterator");
297
9.00M
      Idx = Next();
298
9.00M
      return *this;
299
9.00M
    }
llvm::SparseMultiSet<llvm::VReg2SUnitOperIdx, llvm::VirtReg2IndexFunctor, unsigned char>::iterator_base<llvm::SparseMultiSet<llvm::VReg2SUnitOperIdx, llvm::VirtReg2IndexFunctor, unsigned char>*>::operator++()
Line
Count
Source
295
156k
    iterator_base &operator++() { // preincrement - Advance
296
156k
      assert(!isEnd() && isKeyed() && "Incrementing an invalid/end iterator");
297
156k
      Idx = Next();
298
156k
      return *this;
299
156k
    }
300
    iterator_base operator--(int) { // postdecrement
301
      iterator_base I(*this);
302
      --*this;
303
      return I;
304
    }
305
    iterator_base operator++(int) { // postincrement
306
      iterator_base I(*this);
307
      ++*this;
308
      return I;
309
    }
310
  };
311
312
  using iterator = iterator_base<SparseMultiSet *>;
313
  using const_iterator = iterator_base<const SparseMultiSet *>;
314
315
  // Convenience types
316
  using RangePair = std::pair<iterator, iterator>;
317
318
  /// Returns an iterator past this container. Note that such an iterator cannot
319
  /// be decremented, but will compare equal to other end iterators.
320
233M
  iterator end() { return iterator(this, SMSNode::INVALID, SMSNode::INVALID); }
llvm::SparseMultiSet<llvm::VReg2SUnit, llvm::VirtReg2IndexFunctor, unsigned char>::end()
Line
Count
Source
320
64.3M
  iterator end() { return iterator(this, SMSNode::INVALID, SMSNode::INVALID); }
llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short>::end()
Line
Count
Source
320
139M
  iterator end() { return iterator(this, SMSNode::INVALID, SMSNode::INVALID); }
llvm::SparseMultiSet<llvm::VReg2SUnitOperIdx, llvm::VirtReg2IndexFunctor, unsigned char>::end()
Line
Count
Source
320
30.1M
  iterator end() { return iterator(this, SMSNode::INVALID, SMSNode::INVALID); }
321
82.3M
  const_iterator end() const {
322
82.3M
    return const_iterator(this, SMSNode::INVALID, SMSNode::INVALID);
323
82.3M
  }
324
325
  /// Returns true if the set is empty.
326
  ///
327
  /// This is not the same as BitVector::empty().
328
  ///
329
  bool empty() const { return size() == 0; }
330
331
  /// Returns the number of elements in the set.
332
  ///
333
  /// This is not the same as BitVector::size() which returns the size of the
334
  /// universe.
335
  ///
336
  size_type size() const {
337
    assert(NumFree <= Dense.size() && "Out-of-bounds free entries");
338
    return Dense.size() - NumFree;
339
  }
340
341
  /// Clears the set.  This is a very fast constant time operation.
342
  ///
343
12.2M
  void clear() {
344
12.2M
    // Sparse does not need to be cleared, see find().
345
12.2M
    Dense.clear();
346
12.2M
    NumFree = 0;
347
12.2M
    FreelistIdx = SMSNode::INVALID;
348
12.2M
  }
llvm::SparseMultiSet<llvm::VReg2SUnit, llvm::VirtReg2IndexFunctor, unsigned char>::clear()
Line
Count
Source
343
3.17M
  void clear() {
344
3.17M
    // Sparse does not need to be cleared, see find().
345
3.17M
    Dense.clear();
346
3.17M
    NumFree = 0;
347
3.17M
    FreelistIdx = SMSNode::INVALID;
348
3.17M
  }
llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short>::clear()
Line
Count
Source
343
6.05M
  void clear() {
344
6.05M
    // Sparse does not need to be cleared, see find().
345
6.05M
    Dense.clear();
346
6.05M
    NumFree = 0;
347
6.05M
    FreelistIdx = SMSNode::INVALID;
348
6.05M
  }
llvm::SparseMultiSet<llvm::VReg2SUnitOperIdx, llvm::VirtReg2IndexFunctor, unsigned char>::clear()
Line
Count
Source
343
3.02M
  void clear() {
344
3.02M
    // Sparse does not need to be cleared, see find().
345
3.02M
    Dense.clear();
346
3.02M
    NumFree = 0;
347
3.02M
    FreelistIdx = SMSNode::INVALID;
348
3.02M
  }
349
350
  /// Find an element by its index.
351
  ///
352
  /// @param   Idx A valid index to find.
353
  /// @returns An iterator to the element identified by key, or end().
354
  ///
355
157M
  iterator findIndex(unsigned Idx) {
356
157M
    assert(Idx < Universe && "Key out of range");
357
157M
    const unsigned Stride = std::numeric_limits<SparseT>::max() + 1u;
358
235M
    for (unsigned i = Sparse[Idx], e = Dense.size(); i < e; 
i += Stride77.1M
) {
359
115M
      const unsigned FoundIdx = sparseIndex(Dense[i]);
360
115M
      // Check that we're pointing at the correct entry and that it is the head
361
115M
      // of a valid list.
362
115M
      if (Idx == FoundIdx && 
Dense[i].isValid()39.3M
&&
isHead(Dense[i])38.0M
)
363
38.0M
        return iterator(this, i, Idx);
364
77.1M
      // Stride is 0 when SparseT >= unsigned.  We don't need to loop.
365
77.1M
      if (!Stride)
366
0
        break;
367
77.1M
    }
368
157M
    
return end()119M
;
369
157M
  }
llvm::SparseMultiSet<llvm::VReg2SUnit, llvm::VirtReg2IndexFunctor, unsigned char>::findIndex(unsigned int)
Line
Count
Source
355
23.3M
  iterator findIndex(unsigned Idx) {
356
23.3M
    assert(Idx < Universe && "Key out of range");
357
23.3M
    const unsigned Stride = std::numeric_limits<SparseT>::max() + 1u;
358
31.6M
    for (unsigned i = Sparse[Idx], e = Dense.size(); i < e; 
i += Stride8.24M
) {
359
14.8M
      const unsigned FoundIdx = sparseIndex(Dense[i]);
360
14.8M
      // Check that we're pointing at the correct entry and that it is the head
361
14.8M
      // of a valid list.
362
14.8M
      if (Idx == FoundIdx && 
Dense[i].isValid()6.59M
&&
isHead(Dense[i])6.59M
)
363
6.59M
        return iterator(this, i, Idx);
364
8.24M
      // Stride is 0 when SparseT >= unsigned.  We don't need to loop.
365
8.24M
      if (!Stride)
366
0
        break;
367
8.24M
    }
368
23.3M
    
return end()16.8M
;
369
23.3M
  }
llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short>::findIndex(unsigned int)
Line
Count
Source
355
116M
  iterator findIndex(unsigned Idx) {
356
116M
    assert(Idx < Universe && "Key out of range");
357
116M
    const unsigned Stride = std::numeric_limits<SparseT>::max() + 1u;
358
178M
    for (unsigned i = Sparse[Idx], e = Dense.size(); i < e; 
i += Stride62.1M
) {
359
86.5M
      const unsigned FoundIdx = sparseIndex(Dense[i]);
360
86.5M
      // Check that we're pointing at the correct entry and that it is the head
361
86.5M
      // of a valid list.
362
86.5M
      if (Idx == FoundIdx && 
Dense[i].isValid()25.5M
&&
isHead(Dense[i])24.4M
)
363
24.4M
        return iterator(this, i, Idx);
364
62.1M
      // Stride is 0 when SparseT >= unsigned.  We don't need to loop.
365
62.1M
      if (!Stride)
366
0
        break;
367
62.1M
    }
368
116M
    
return end()91.5M
;
369
116M
  }
llvm::SparseMultiSet<llvm::VReg2SUnitOperIdx, llvm::VirtReg2IndexFunctor, unsigned char>::findIndex(unsigned int)
Line
Count
Source
355
18.5M
  iterator findIndex(unsigned Idx) {
356
18.5M
    assert(Idx < Universe && "Key out of range");
357
18.5M
    const unsigned Stride = std::numeric_limits<SparseT>::max() + 1u;
358
25.3M
    for (unsigned i = Sparse[Idx], e = Dense.size(); i < e; 
i += Stride6.78M
) {
359
13.7M
      const unsigned FoundIdx = sparseIndex(Dense[i]);
360
13.7M
      // Check that we're pointing at the correct entry and that it is the head
361
13.7M
      // of a valid list.
362
13.7M
      if (Idx == FoundIdx && 
Dense[i].isValid()7.26M
&&
isHead(Dense[i])6.92M
)
363
6.92M
        return iterator(this, i, Idx);
364
6.78M
      // Stride is 0 when SparseT >= unsigned.  We don't need to loop.
365
6.78M
      if (!Stride)
366
0
        break;
367
6.78M
    }
368
18.5M
    
return end()11.6M
;
369
18.5M
  }
370
371
  /// Find an element by its key.
372
  ///
373
  /// @param   Key A valid key to find.
374
  /// @returns An iterator to the element identified by key, or end().
375
  ///
376
45.8M
  iterator find(const KeyT &Key) {
377
45.8M
    return findIndex(KeyIndexOf(Key));
378
45.8M
  }
llvm::SparseMultiSet<llvm::VReg2SUnit, llvm::VirtReg2IndexFunctor, unsigned char>::find(unsigned int const&)
Line
Count
Source
376
18.7M
  iterator find(const KeyT &Key) {
377
18.7M
    return findIndex(KeyIndexOf(Key));
378
18.7M
  }
llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short>::find(unsigned int const&)
Line
Count
Source
376
20.1M
  iterator find(const KeyT &Key) {
377
20.1M
    return findIndex(KeyIndexOf(Key));
378
20.1M
  }
llvm::SparseMultiSet<llvm::VReg2SUnitOperIdx, llvm::VirtReg2IndexFunctor, unsigned char>::find(unsigned int const&)
Line
Count
Source
376
6.91M
  iterator find(const KeyT &Key) {
377
6.91M
    return findIndex(KeyIndexOf(Key));
378
6.91M
  }
379
380
82.3M
  const_iterator find(const KeyT &Key) const {
381
82.3M
    iterator I = const_cast<SparseMultiSet*>(this)->findIndex(KeyIndexOf(Key));
382
82.3M
    return const_iterator(I.SMS, I.Idx, KeyIndexOf(Key));
383
82.3M
  }
384
385
  /// Returns the number of elements identified by Key. This will be linear in
386
  /// the number of elements of that key.
387
  size_type count(const KeyT &Key) const {
388
    unsigned Ret = 0;
389
    for (const_iterator It = find(Key); It != end(); ++It)
390
      ++Ret;
391
392
    return Ret;
393
  }
394
395
  /// Returns true if this set contains an element identified by Key.
396
82.3M
  bool contains(const KeyT &Key) const {
397
82.3M
    return find(Key) != end();
398
82.3M
  }
399
400
  /// Return the head and tail of the subset's list, otherwise returns end().
401
  iterator getHead(const KeyT &Key) { return find(Key); }
402
  iterator getTail(const KeyT &Key) {
403
    iterator I = find(Key);
404
    if (I != end())
405
      I = iterator(this, I.Prev(), KeyIndexOf(Key));
406
    return I;
407
  }
408
409
  /// The bounds of the range of items sharing Key K. First member is the head
410
  /// of the list, and the second member is a decrementable end iterator for
411
  /// that key.
412
1.40k
  RangePair equal_range(const KeyT &K) {
413
1.40k
    iterator B = find(K);
414
1.40k
    iterator E = iterator(this, SMSNode::INVALID, B.SparseIdx);
415
1.40k
    return make_pair(B, E);
416
1.40k
  }
417
418
  /// Insert a new element at the tail of the subset list. Returns an iterator
419
  /// to the newly added entry.
420
29.7M
  iterator insert(const ValueT &Val) {
421
29.7M
    unsigned Idx = sparseIndex(Val);
422
29.7M
    iterator I = findIndex(Idx);
423
29.7M
424
29.7M
    unsigned NodeIdx = addValue(Val, SMSNode::INVALID, SMSNode::INVALID);
425
29.7M
426
29.7M
    if (I == end()) {
427
25.1M
      // Make a singleton list
428
25.1M
      Sparse[Idx] = NodeIdx;
429
25.1M
      Dense[NodeIdx].Prev = NodeIdx;
430
25.1M
      return iterator(this, NodeIdx, Idx);
431
25.1M
    }
432
4.59M
433
4.59M
    // Stick it at the end.
434
4.59M
    unsigned HeadIdx = I.Idx;
435
4.59M
    unsigned TailIdx = I.Prev();
436
4.59M
    Dense[TailIdx].Next = NodeIdx;
437
4.59M
    Dense[HeadIdx].Prev = NodeIdx;
438
4.59M
    Dense[NodeIdx].Prev = TailIdx;
439
4.59M
440
4.59M
    return iterator(this, NodeIdx, Idx);
441
4.59M
  }
llvm::SparseMultiSet<llvm::VReg2SUnit, llvm::VirtReg2IndexFunctor, unsigned char>::insert(llvm::VReg2SUnit const&)
Line
Count
Source
420
4.64M
  iterator insert(const ValueT &Val) {
421
4.64M
    unsigned Idx = sparseIndex(Val);
422
4.64M
    iterator I = findIndex(Idx);
423
4.64M
424
4.64M
    unsigned NodeIdx = addValue(Val, SMSNode::INVALID, SMSNode::INVALID);
425
4.64M
426
4.64M
    if (I == end()) {
427
2.88M
      // Make a singleton list
428
2.88M
      Sparse[Idx] = NodeIdx;
429
2.88M
      Dense[NodeIdx].Prev = NodeIdx;
430
2.88M
      return iterator(this, NodeIdx, Idx);
431
2.88M
    }
432
1.75M
433
1.75M
    // Stick it at the end.
434
1.75M
    unsigned HeadIdx = I.Idx;
435
1.75M
    unsigned TailIdx = I.Prev();
436
1.75M
    Dense[TailIdx].Next = NodeIdx;
437
1.75M
    Dense[HeadIdx].Prev = NodeIdx;
438
1.75M
    Dense[NodeIdx].Prev = TailIdx;
439
1.75M
440
1.75M
    return iterator(this, NodeIdx, Idx);
441
1.75M
  }
llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short>::insert(llvm::PhysRegSUOper const&)
Line
Count
Source
420
13.5M
  iterator insert(const ValueT &Val) {
421
13.5M
    unsigned Idx = sparseIndex(Val);
422
13.5M
    iterator I = findIndex(Idx);
423
13.5M
424
13.5M
    unsigned NodeIdx = addValue(Val, SMSNode::INVALID, SMSNode::INVALID);
425
13.5M
426
13.5M
    if (I == end()) {
427
12.8M
      // Make a singleton list
428
12.8M
      Sparse[Idx] = NodeIdx;
429
12.8M
      Dense[NodeIdx].Prev = NodeIdx;
430
12.8M
      return iterator(this, NodeIdx, Idx);
431
12.8M
    }
432
684k
433
684k
    // Stick it at the end.
434
684k
    unsigned HeadIdx = I.Idx;
435
684k
    unsigned TailIdx = I.Prev();
436
684k
    Dense[TailIdx].Next = NodeIdx;
437
684k
    Dense[HeadIdx].Prev = NodeIdx;
438
684k
    Dense[NodeIdx].Prev = TailIdx;
439
684k
440
684k
    return iterator(this, NodeIdx, Idx);
441
684k
  }
llvm::SparseMultiSet<llvm::VReg2SUnitOperIdx, llvm::VirtReg2IndexFunctor, unsigned char>::insert(llvm::VReg2SUnitOperIdx const&)
Line
Count
Source
420
11.6M
  iterator insert(const ValueT &Val) {
421
11.6M
    unsigned Idx = sparseIndex(Val);
422
11.6M
    iterator I = findIndex(Idx);
423
11.6M
424
11.6M
    unsigned NodeIdx = addValue(Val, SMSNode::INVALID, SMSNode::INVALID);
425
11.6M
426
11.6M
    if (I == end()) {
427
9.46M
      // Make a singleton list
428
9.46M
      Sparse[Idx] = NodeIdx;
429
9.46M
      Dense[NodeIdx].Prev = NodeIdx;
430
9.46M
      return iterator(this, NodeIdx, Idx);
431
9.46M
    }
432
2.15M
433
2.15M
    // Stick it at the end.
434
2.15M
    unsigned HeadIdx = I.Idx;
435
2.15M
    unsigned TailIdx = I.Prev();
436
2.15M
    Dense[TailIdx].Next = NodeIdx;
437
2.15M
    Dense[HeadIdx].Prev = NodeIdx;
438
2.15M
    Dense[NodeIdx].Prev = TailIdx;
439
2.15M
440
2.15M
    return iterator(this, NodeIdx, Idx);
441
2.15M
  }
442
443
  /// Erases an existing element identified by a valid iterator.
444
  ///
445
  /// This invalidates iterators pointing at the same entry, but erase() returns
446
  /// an iterator pointing to the next element in the subset's list. This makes
447
  /// it possible to erase selected elements while iterating over the subset:
448
  ///
449
  ///   tie(I, E) = Set.equal_range(Key);
450
  ///   while (I != E)
451
  ///     if (test(*I))
452
  ///       I = Set.erase(I);
453
  ///     else
454
  ///       ++I;
455
  ///
456
  /// Note that if the last element in the subset list is erased, this will
457
  /// return an end iterator which can be decremented to get the new tail (if it
458
  /// exists):
459
  ///
460
  ///  tie(B, I) = Set.equal_range(Key);
461
  ///  for (bool isBegin = B == I; !isBegin; /* empty */) {
462
  ///    isBegin = (--I) == B;
463
  ///    if (test(I))
464
  ///      break;
465
  ///    I = erase(I);
466
  ///  }
467
11.0M
  iterator erase(iterator I) {
468
11.0M
    assert(I.isKeyed() && !I.isEnd() && !Dense[I.Idx].isTombstone() &&
469
11.0M
           "erasing invalid/end/tombstone iterator");
470
11.0M
471
11.0M
    // First, unlink the node from its list. Then swap the node out with the
472
11.0M
    // dense vector's last entry
473
11.0M
    iterator NextI = unlink(Dense[I.Idx]);
474
11.0M
475
11.0M
    // Put in a tombstone.
476
11.0M
    makeTombstone(I.Idx);
477
11.0M
478
11.0M
    return NextI;
479
11.0M
  }
llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short>::erase(llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short>::iterator_base<llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short>*>)
Line
Count
Source
467
5.21M
  iterator erase(iterator I) {
468
5.21M
    assert(I.isKeyed() && !I.isEnd() && !Dense[I.Idx].isTombstone() &&
469
5.21M
           "erasing invalid/end/tombstone iterator");
470
5.21M
471
5.21M
    // First, unlink the node from its list. Then swap the node out with the
472
5.21M
    // dense vector's last entry
473
5.21M
    iterator NextI = unlink(Dense[I.Idx]);
474
5.21M
475
5.21M
    // Put in a tombstone.
476
5.21M
    makeTombstone(I.Idx);
477
5.21M
478
5.21M
    return NextI;
479
5.21M
  }
llvm::SparseMultiSet<llvm::VReg2SUnitOperIdx, llvm::VirtReg2IndexFunctor, unsigned char>::erase(llvm::SparseMultiSet<llvm::VReg2SUnitOperIdx, llvm::VirtReg2IndexFunctor, unsigned char>::iterator_base<llvm::SparseMultiSet<llvm::VReg2SUnitOperIdx, llvm::VirtReg2IndexFunctor, unsigned char>*>)
Line
Count
Source
467
5.80M
  iterator erase(iterator I) {
468
5.80M
    assert(I.isKeyed() && !I.isEnd() && !Dense[I.Idx].isTombstone() &&
469
5.80M
           "erasing invalid/end/tombstone iterator");
470
5.80M
471
5.80M
    // First, unlink the node from its list. Then swap the node out with the
472
5.80M
    // dense vector's last entry
473
5.80M
    iterator NextI = unlink(Dense[I.Idx]);
474
5.80M
475
5.80M
    // Put in a tombstone.
476
5.80M
    makeTombstone(I.Idx);
477
5.80M
478
5.80M
    return NextI;
479
5.80M
  }
480
481
  /// Erase all elements with the given key. This invalidates all
482
  /// iterators of that key.
483
13.1M
  void eraseAll(const KeyT &K) {
484
18.3M
    for (iterator I = find(K); I != end(); /* empty */)
485
5.21M
      I = erase(I);
486
13.1M
  }
487
488
private:
489
  /// Unlink the node from its list. Returns the next node in the list.
490
11.0M
  iterator unlink(const SMSNode &N) {
491
11.0M
    if (isSingleton(N)) {
492
9.70M
      // Singleton is already unlinked
493
9.70M
      assert(N.Next == SMSNode::INVALID && "Singleton has next?");
494
9.70M
      return iterator(this, SMSNode::INVALID, ValIndexOf(N.Data));
495
9.70M
    }
496
1.31M
497
1.31M
    if (isHead(N)) {
498
1.30M
      // If we're the head, then update the sparse array and our next.
499
1.30M
      Sparse[sparseIndex(N)] = N.Next;
500
1.30M
      Dense[N.Next].Prev = N.Prev;
501
1.30M
      return iterator(this, N.Next, ValIndexOf(N.Data));
502
1.30M
    }
503
5.18k
504
5.18k
    if (N.isTail()) {
505
3.53k
      // If we're the tail, then update our head and our previous.
506
3.53k
      findIndex(sparseIndex(N)).setPrev(N.Prev);
507
3.53k
      Dense[N.Prev].Next = N.Next;
508
3.53k
509
3.53k
      // Give back an end iterator that can be decremented
510
3.53k
      iterator I(this, N.Prev, ValIndexOf(N.Data));
511
3.53k
      return ++I;
512
3.53k
    }
513
1.64k
514
1.64k
    // Otherwise, just drop us
515
1.64k
    Dense[N.Next].Prev = N.Prev;
516
1.64k
    Dense[N.Prev].Next = N.Next;
517
1.64k
    return iterator(this, N.Next, ValIndexOf(N.Data));
518
1.64k
  }
llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short>::unlink(llvm::SparseMultiSet<llvm::PhysRegSUOper, llvm::identity<unsigned int>, unsigned short>::SMSNode const&)
Line
Count
Source
490
5.21M
  iterator unlink(const SMSNode &N) {
491
5.21M
    if (isSingleton(N)) {
492
5.01M
      // Singleton is already unlinked
493
5.01M
      assert(N.Next == SMSNode::INVALID && "Singleton has next?");
494
5.01M
      return iterator(this, SMSNode::INVALID, ValIndexOf(N.Data));
495
5.01M
    }
496
197k
497
197k
    if (isHead(N)) {
498
197k
      // If we're the head, then update the sparse array and our next.
499
197k
      Sparse[sparseIndex(N)] = N.Next;
500
197k
      Dense[N.Next].Prev = N.Prev;
501
197k
      return iterator(this, N.Next, ValIndexOf(N.Data));
502
197k
    }
503
164
504
164
    if (N.isTail()) {
505
164
      // If we're the tail, then update our head and our previous.
506
164
      findIndex(sparseIndex(N)).setPrev(N.Prev);
507
164
      Dense[N.Prev].Next = N.Next;
508
164
509
164
      // Give back an end iterator that can be decremented
510
164
      iterator I(this, N.Prev, ValIndexOf(N.Data));
511
164
      return ++I;
512
164
    }
513
0
514
0
    // Otherwise, just drop us
515
0
    Dense[N.Next].Prev = N.Prev;
516
0
    Dense[N.Prev].Next = N.Next;
517
0
    return iterator(this, N.Next, ValIndexOf(N.Data));
518
0
  }
llvm::SparseMultiSet<llvm::VReg2SUnitOperIdx, llvm::VirtReg2IndexFunctor, unsigned char>::unlink(llvm::SparseMultiSet<llvm::VReg2SUnitOperIdx, llvm::VirtReg2IndexFunctor, unsigned char>::SMSNode const&)
Line
Count
Source
490
5.80M
  iterator unlink(const SMSNode &N) {
491
5.80M
    if (isSingleton(N)) {
492
4.69M
      // Singleton is already unlinked
493
4.69M
      assert(N.Next == SMSNode::INVALID && "Singleton has next?");
494
4.69M
      return iterator(this, SMSNode::INVALID, ValIndexOf(N.Data));
495
4.69M
    }
496
1.11M
497
1.11M
    if (isHead(N)) {
498
1.10M
      // If we're the head, then update the sparse array and our next.
499
1.10M
      Sparse[sparseIndex(N)] = N.Next;
500
1.10M
      Dense[N.Next].Prev = N.Prev;
501
1.10M
      return iterator(this, N.Next, ValIndexOf(N.Data));
502
1.10M
    }
503
5.02k
504
5.02k
    if (N.isTail()) {
505
3.37k
      // If we're the tail, then update our head and our previous.
506
3.37k
      findIndex(sparseIndex(N)).setPrev(N.Prev);
507
3.37k
      Dense[N.Prev].Next = N.Next;
508
3.37k
509
3.37k
      // Give back an end iterator that can be decremented
510
3.37k
      iterator I(this, N.Prev, ValIndexOf(N.Data));
511
3.37k
      return ++I;
512
3.37k
    }
513
1.64k
514
1.64k
    // Otherwise, just drop us
515
1.64k
    Dense[N.Next].Prev = N.Prev;
516
1.64k
    Dense[N.Prev].Next = N.Next;
517
1.64k
    return iterator(this, N.Next, ValIndexOf(N.Data));
518
1.64k
  }
519
};
520
521
} // end namespace llvm
522
523
#endif // LLVM_ADT_SPARSEMULTISET_H