[CodeGen] Avoid pointer element type access when creating LValue

This required fixing two places that were passing the pointer type
rather than the expected pointee type to the method.

clang/lib/CodeGen/CGExpr.cpp

@@ -1309,7 +1309,8 @@ LValue CodeGenFunction::EmitLValue(const Expr *E) {
     const ConstantExpr *CE = cast<ConstantExpr>(E);
     if (llvm::Value *Result = ConstantEmitter(*this).tryEmitConstantExpr(CE)) {
       QualType RetType = cast<CallExpr>(CE->getSubExpr()->IgnoreImplicit())
-                             ->getCallReturnType(getContext());
+                             ->getCallReturnType(getContext())
+                             ->getPointeeType();
       return MakeNaturalAlignAddrLValue(Result, RetType);
     }
     return EmitLValue(cast<ConstantExpr>(E)->getSubExpr());

clang/lib/CodeGen/CGOpenMPRuntime.cpp

@@ -5945,7 +5945,7 @@ static llvm::Value *emitReduceInitFunction(CodeGenModule &CGM,
   } else {
     OrigLVal = CGF.MakeNaturalAlignAddrLValue(
         llvm::ConstantPointerNull::get(CGM.VoidPtrTy),
-        CGM.getContext().VoidPtrTy);
+        CGM.getContext().VoidTy);
   }
   // Emit the initializer:
   // %0 = bitcast void* %arg to <type>*

clang/lib/CodeGen/CodeGenFunction.cpp

@@ -188,8 +188,8 @@ LValue CodeGenFunction::MakeNaturalAlignAddrLValue(llvm::Value *V, QualType T) {
   LValueBaseInfo BaseInfo;
   TBAAAccessInfo TBAAInfo;
   CharUnits Alignment = CGM.getNaturalTypeAlignment(T, &BaseInfo, &TBAAInfo);
-  return LValue::MakeAddr(Address(V, Alignment), T, getContext(), BaseInfo,
-                          TBAAInfo);
+  Address Addr(V, ConvertTypeForMem(T), Alignment);
+  return LValue::MakeAddr(Addr, T, getContext(), BaseInfo, TBAAInfo);
 }
 
 /// Given a value of type T* that may not be to a complete object,