Update the tutorial to match changes to examples/Kaleidoscope.

One change I'm not folding in is the removal of two unused variables that
caused warnings, because those were there for expository purposes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81721 91177308-0d34-0410-b5e6-96231b3b80d8

docs/tutorial/LangImpl4.html

@@ -188,6 +188,8 @@ add a set of optimizations to run.  The code looks like this:</p>
   // Simplify the control flow graph (deleting unreachable blocks, etc).
   OurFPM.add(createCFGSimplificationPass());
 
+  OurFPM.doInitialization();
+
   // Set the global so the code gen can use this.
   TheFPM = &amp;OurFPM;
 
@@ -514,12 +516,15 @@ at runtime.</p>
 <pre>
 #include "llvm/DerivedTypes.h"
 #include "llvm/ExecutionEngine/ExecutionEngine.h"
+#include "llvm/ExecutionEngine/Interpreter.h"
+#include "llvm/ExecutionEngine/JIT.h"
 #include "llvm/LLVMContext.h"
 #include "llvm/Module.h"
 #include "llvm/ModuleProvider.h"
 #include "llvm/PassManager.h"
 #include "llvm/Analysis/Verifier.h"
 #include "llvm/Target/TargetData.h"
+#include "llvm/Target/TargetSelect.h"
 #include "llvm/Transforms/Scalar.h"
 #include "llvm/Support/IRBuilder.h"
 #include &lt;cstdio&gt;
@@ -892,7 +897,8 @@ Value *BinaryExprAST::Codegen() {
   case '&lt;':
     L = Builder.CreateFCmpULT(L, R, "cmptmp");
     // Convert bool 0/1 to double 0.0 or 1.0
-    return Builder.CreateUIToFP(L, Type::getDoubleTy(getGlobalContext()), "booltmp");
+    return Builder.CreateUIToFP(L, Type::getDoubleTy(getGlobalContext()),
+                                "booltmp");
   default: return ErrorV("invalid binary operator");
   }
 }
@@ -918,8 +924,10 @@ Value *CallExprAST::Codegen() {
 
 Function *PrototypeAST::Codegen() {
   // Make the function type:  double(double,double) etc.
-  std::vector&lt;const Type*&gt; Doubles(Args.size(), Type::getDoubleTy(getGlobalContext()));
-  FunctionType *FT = FunctionType::get(Type::getDoubleTy(getGlobalContext()), Doubles, false);
+  std::vector&lt;const Type*&gt; Doubles(Args.size(),
+                                   Type::getDoubleTy(getGlobalContext()));
+  FunctionType *FT = FunctionType::get(Type::getDoubleTy(getGlobalContext()),
+                                       Doubles, false);
   
   Function *F = Function::Create(FT, Function::ExternalLinkage, Name, TheModule);
   
@@ -1024,7 +1032,7 @@ static void HandleTopLevelExpression() {
       
       // Cast it to the right type (takes no arguments, returns a double) so we
       // can call it as a native function.
-      double (*FP)() = (double (*)())FPtr;
+      double (*FP)() = (double (*)())(intptr_t)FPtr;
       fprintf(stderr, "Evaluated to %f\n", FP());
     }
   } else {
@@ -1065,6 +1073,9 @@ double putchard(double X) {
 //===----------------------------------------------------------------------===//
 
 int main() {
+  InitializeNativeTarget();
+  LLVMContext &amp;Context = getGlobalContext();
+
   // Install standard binary operators.
   // 1 is lowest precedence.
   BinopPrecedence['&lt;'] = 10;
@@ -1077,7 +1088,7 @@ int main() {
   getNextToken();
 
   // Make the module, which holds all the code.
-  TheModule = new Module("my cool jit", getGlobalContext());
+  TheModule = new Module("my cool jit", Context);
 
   ExistingModuleProvider *OurModuleProvider =
       new ExistingModuleProvider(TheModule);
@@ -1099,6 +1110,8 @@ int main() {
   // Simplify the control flow graph (deleting unreachable blocks, etc).
   OurFPM.add(createCFGSimplificationPass());
 
+  OurFPM.doInitialization();
+
   // Set the global so the code gen can use this.
   TheFPM = &amp;OurFPM;