Add an unwind_to field to basic blocks, making them Users instead of Values.

[oota-llvm.git] / include / llvm / Support / ConstantRange.h

diff --git a/include/llvm/Support/ConstantRange.h b/include/llvm/Support/ConstantRange.h
index 00c525ebf32c82f4ab122c3c1ce9670f5036f1e8..2e477cf899842677cacc417a4fbb1a4a2681c471 100644 (file)
--- a/include/llvm/Support/ConstantRange.h
+++ b/include/llvm/Support/ConstantRange.h
@@ -2,8 +2,8 @@
 //
 //                     The LLVM Compiler Infrastructure
 //
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
@@ -44,7 +44,7 @@ class ConstantRange {
  public:
   /// Initialize a full (the default) or empty set for the specified bit width.
   ///
-  ConstantRange(uint32_t BitWidth, bool isFullSet = true);
+  explicit ConstantRange(uint32_t BitWidth, bool isFullSet = true);
 
   /// Initialize a range to hold the single specified value.
   ///
@@ -145,8 +145,11 @@ class ConstantRange {
 
   /// maximalIntersectWith - Return the range that results from the intersection
   /// of this range with another range.  The resultant range is guaranteed to
-  /// include all elements contained in both input ranges, and is also
-  /// guaranteed to be the smallest possible set that does so.
+  /// include all elements contained in both input ranges, and to have the
+  /// smallest possible set size that does so.  Because there may be two
+  /// intersections with the same set size, A.maximalIntersectWith(B) might not
+  /// be equal to B.maximalIntersectWith(A).
+  ///
   ConstantRange maximalIntersectWith(const ConstantRange &CR) const;
 
   /// unionWith - Return the range that results from the union of this range