For PR950:
This patch replaces signed integer types with signless ones:
1. [US]Byte -> Int8
2. [U]Short -> Int16
3. [U]Int   -> Int32
4. [U]Long  -> Int64.
5. Removal of isSigned, isUnsigned, getSignedVersion, getUnsignedVersion
   and other methods related to signedness. In a few places this warranted
   identifying the signedness information from other sources.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32785 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Scalar/IndVarSimplify.cpp b/lib/Transforms/Scalar/IndVarSimplify.cpp
index fac17d1..143a682 100644
--- a/lib/Transforms/Scalar/IndVarSimplify.cpp
+++ b/lib/Transforms/Scalar/IndVarSimplify.cpp
@@ -173,7 +173,7 @@
               Constant *NCE = ConstantExpr::getGetElementPtr(CE->getOperand(0),
                                                              CEIdxs);
               GetElementPtrInst *NGEPI =
-                new GetElementPtrInst(NCE, Constant::getNullValue(Type::IntTy),
+                new GetElementPtrInst(NCE, Constant::getNullValue(Type::Int32Ty),
                                       NewAdd, GEPI->getName(), GEPI);
               GEPI->replaceAllUsesWith(NGEPI);
               GEPI->eraseFromParent();
@@ -499,7 +499,6 @@
 
   // Now that we know the largest of of the induction variables in this loop,
   // insert a canonical induction variable of the largest size.
-  LargestType = LargestType->getUnsignedVersion();
   Value *IndVar = Rewriter.getOrInsertCanonicalInductionVariable(L,LargestType);
   ++NumInserted;
   Changed = true;
@@ -525,7 +524,7 @@
         PHINode *PN = IndVars[i].first;
         InsertedSizes[PN->getType()->getPrimitiveSize()] = true;
         Instruction *New = CastInst::create(Instruction::Trunc, IndVar, 
-            PN->getType()->getUnsignedVersion(), "indvar", InsertPt);
+            PN->getType(), "indvar", InsertPt);
         Rewriter.addInsertedValue(New, SE->getSCEV(New));
       }
   }