fix several bugs in the tutorial, patch by Kevin Kelley!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106498 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/examples/Kaleidoscope/Chapter5/toy.cpp b/examples/Kaleidoscope/Chapter5/toy.cpp
index 05ea864..844c769 100644
--- a/examples/Kaleidoscope/Chapter5/toy.cpp
+++ b/examples/Kaleidoscope/Chapter5/toy.cpp
@@ -615,7 +615,7 @@
     StepVal = ConstantFP::get(getGlobalContext(), APFloat(1.0));
   }
   
-  Value *NextVar = Builder.CreateAdd(Variable, StepVal, "nextvar");
+  Value *NextVar = Builder.CreateFAdd(Variable, StepVal, "nextvar");
 
   // Compute the end condition.
   Value *EndCond = End->Codegen();