Use type helper functions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190113 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/InstCombine/InstCombineVectorOps.cpp b/lib/Transforms/InstCombine/InstCombineVectorOps.cpp
index 8877b99..805c5d2 100644
--- a/lib/Transforms/InstCombine/InstCombineVectorOps.cpp
+++ b/lib/Transforms/InstCombine/InstCombineVectorOps.cpp
@@ -294,7 +294,7 @@
                                          SmallVectorImpl<Constant*> &Mask) {
   assert(V->getType() == LHS->getType() && V->getType() == RHS->getType() &&
          "Invalid CollectSingleShuffleElements");
-  unsigned NumElts = cast<VectorType>(V->getType())->getNumElements();
+  unsigned NumElts = V->getType()->getVectorNumElements();
 
   if (isa<UndefValue>(V)) {
     Mask.assign(NumElts, UndefValue::get(Type::getInt32Ty(V->getContext())));
diff --git a/lib/Transforms/Scalar/CodeGenPrepare.cpp b/lib/Transforms/Scalar/CodeGenPrepare.cpp
index 67bf1bb..c1a83bf 100644
--- a/lib/Transforms/Scalar/CodeGenPrepare.cpp
+++ b/lib/Transforms/Scalar/CodeGenPrepare.cpp
@@ -1418,8 +1418,7 @@
     Value *Address = User->getOperand(OpNo);
     if (!Address->getType()->isPointerTy())
       return false;
-    Type *AddressAccessTy =
-      cast<PointerType>(Address->getType())->getElementType();
+    Type *AddressAccessTy = Address->getType()->getPointerElementType();
 
     // Do a match against the root of this address, ignoring profitability. This
     // will tell us if the addressing mode for the memory operation will
diff --git a/lib/Transforms/Utils/SimplifyCFG.cpp b/lib/Transforms/Utils/SimplifyCFG.cpp
index c4c1423..0dea844 100644
--- a/lib/Transforms/Utils/SimplifyCFG.cpp
+++ b/lib/Transforms/Utils/SimplifyCFG.cpp
@@ -3160,7 +3160,7 @@
 /// and use it to remove dead cases.
 static bool EliminateDeadSwitchCases(SwitchInst *SI) {
   Value *Cond = SI->getCondition();
-  unsigned Bits = cast<IntegerType>(Cond->getType())->getBitWidth();
+  unsigned Bits = Cond->getType()->getIntegerBitWidth();
   APInt KnownZero(Bits, 0), KnownOne(Bits, 0);
   ComputeMaskedBits(Cond, KnownZero, KnownOne);