Revert "Add ADT/IntervalMap.", GCC doesn't like it.

[oota-llvm.git] / lib / Support / IntervalMap.cpp

diff --git a/lib/Support/IntervalMap.cpp b/lib/Support/IntervalMap.cpp
deleted file mode 100644 (file)
index 9f5c72f..0000000
--- a/lib/Support/IntervalMap.cpp
+++ /dev/null
@@ -1,60 +0,0 @@
-//===- lib/Support/IntervalMap.cpp - A sorted interval map ----------------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file implements the few non-templated functions in IntervalMap.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/ADT/IntervalMap.h"
-
-namespace llvm {
-namespace IntervalMapImpl {
-
-IdxPair distribute(unsigned Nodes, unsigned Elements, unsigned Capacity,
-                   const unsigned *CurSize, unsigned NewSize[],
-                   unsigned Position, bool Grow) {
-  assert(Elements + Grow <= Nodes * Capacity && "Not enough room for elements");
-  assert(Position <= Elements && "Invalid position");
-  if (!Nodes)
-    return IdxPair();
-
-  // Trivial algorithm: left-leaning even distribution.
-  const unsigned PerNode = (Elements + Grow) / Nodes;
-  const unsigned Extra = (Elements + Grow) % Nodes;
-  IdxPair PosPair = IdxPair(Nodes, 0);
-  unsigned Sum = 0;
-  for (unsigned n = 0; n != Nodes; ++n) {
-    Sum += NewSize[n] = PerNode + (n < Extra);
-    if (PosPair.first == Nodes && Sum > Position)
-      PosPair = IdxPair(n, Position - (Sum - NewSize[n]));
-  }
-  assert(Sum == Elements + Grow && "Bad distribution sum");
-
-  // Subtract the Grow element that was added.
-  if (Grow) {
-    assert(PosPair.first < Nodes && "Bad algebra");
-    assert(NewSize[PosPair.first] && "Too few elements to need Grow");
-    --NewSize[PosPair.first];
-  }
-
-#ifndef NDEBUG
-  Sum = 0;
-  for (unsigned n = 0; n != Nodes; ++n) {
-    assert(NewSize[n] <= Capacity && "Overallocated node");
-    Sum += NewSize[n];
-  }
-  assert(Sum == Elements && "Bad distribution sum");
-#endif
-
-  return PosPair;
-}
-
-} // namespace IntervalMapImpl
-} // namespace llvm 
-