APInt: Simplify code.

No functionality change.

llvm-svn: 160929

1 files changed, 1 insertions, 7 deletions

diff --git a/llvm/include/llvm/ADT/APInt.h b/llvm/include/llvm/ADT/APInt.h
index 9498ef031dc..f30a6e3f081 100644
--- a/llvm/include/llvm/ADT/APInt.h
+++ b/llvm/include/llvm/ADT/APInt.h
@@ -357,13 +357,7 @@ public:
   /// @brief Check if this APInt has an N-bits unsigned integer value.
   bool isIntN(unsigned N) const {
     assert(N && "N == 0 ???");
-    if (N >= getBitWidth())
-      return true;
-
-    if (isSingleWord())
-      return isUIntN(N, VAL);
-    return APInt(N, makeArrayRef(pVal, getNumWords())).zext(getBitWidth())
-      == (*this);
+    return getActiveBits() <= N;
   }
 
   /// @brief Check if this APInt has an N-bits signed integer value.