Simplify memory management with std::unique_ptr.

[oota-llvm.git] / include / llvm / ADT / SmallBitVector.h

diff --git a/include/llvm/ADT/SmallBitVector.h b/include/llvm/ADT/SmallBitVector.h
index ae3d645396fdb1f808634a44a15fbd9e3bbd0120..4aa3bc217f41bfb24465ccecc5457f6d2a1ff7fe 100644 (file)
--- a/include/llvm/ADT/SmallBitVector.h
+++ b/include/llvm/ADT/SmallBitVector.h
@@ -551,19 +551,18 @@ public:
   }
 
 private:
-  template<bool AddBits, bool InvertMask>
+  template <bool AddBits, bool InvertMask>
   void applyMask(const uint32_t *Mask, unsigned MaskWords) {
-    if (NumBaseBits == 64 && MaskWords >= 2) {
-      uint64_t M = Mask[0] | (uint64_t(Mask[1]) << 32);
-      if (InvertMask) M = ~M;
-      if (AddBits) setSmallBits(getSmallBits() | M);
-      else         setSmallBits(getSmallBits() & ~M);
-    } else {
-      uint32_t M = Mask[0];
-      if (InvertMask) M = ~M;
-      if (AddBits) setSmallBits(getSmallBits() | M);
-      else         setSmallBits(getSmallBits() & ~M);
-    }
+    assert(MaskWords <= sizeof(uintptr_t) && "Mask is larger than base!");
+    uintptr_t M = Mask[0];
+    if (NumBaseBits == 64)
+      M |= uint64_t(Mask[1]) << 32;
+    if (InvertMask)
+      M = ~M;
+    if (AddBits)
+      setSmallBits(getSmallBits() | M);
+    else
+      setSmallBits(getSmallBits() & ~M);
   }
 };