For PR950:
This patch implements the first increment for the Signless Types feature.
All changes pertain to removing the ConstantSInt and ConstantUInt classes
in favor of just using ConstantInt.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31063 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Support/ConstantRange.cpp b/lib/Support/ConstantRange.cpp
index beb6175..9e12c93 100644
--- a/lib/Support/ConstantRange.cpp
+++ b/lib/Support/ConstantRange.cpp
@@ -161,7 +161,7 @@
 
   // Simply subtract the bounds...
   Constant *Result = ConstantExpr::getSub(Upper, Lower);
-  return cast<ConstantInt>(Result)->getRawValue();
+  return cast<ConstantInt>(Result)->getZExtValue();
 }
 
 /// contains - Return true if the specified value is in the set.
@@ -288,7 +288,7 @@
     // Change a source full set into [0, 1 << 8*numbytes)
     unsigned SrcTySize = getLower()->getType()->getPrimitiveSize();
     return ConstantRange(Constant::getNullValue(Ty),
-                         ConstantUInt::get(Ty, 1ULL << SrcTySize*8));
+                         ConstantInt::get(Ty, 1ULL << SrcTySize*8));
   }
 
   Constant *Lower = getLower();