Add an all() method to BitVector, for testing whether all bits are set.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114830 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 6 insertions, 0 deletions

diff --git a/include/llvm/ADT/BitVector.h b/include/llvm/ADT/BitVector.h
index 9dcb9e106f..1940fd3900 100644
--- a/include/llvm/ADT/BitVector.h
+++ b/include/llvm/ADT/BitVector.h
@@ -127,6 +127,12 @@ public:
     return false;
   }
 
+  /// all - Returns true if all bits are set.
+  bool all() const {
+    // TODO: Optimize this.
+    return count() == size();
+  }
+
   /// none - Returns true if none of the bits are set.
   bool none() const {
     return !any();