1 files changed, 13 insertions, 5 deletions
diff --git a/examples/Kaleidoscope/Chapter7/toy.cpp b/examples/Kaleidoscope/Chapter7/toy.cpp
index 7e723ba0397..2f8cb682a84 100644
--- a/examples/Kaleidoscope/Chapter7/toy.cpp
+++ b/examples/Kaleidoscope/Chapter7/toy.cpp
@@ -639,7 +639,7 @@ static std::unique_ptr<PrototypeAST> ParsePrototype() {
     // Read the precedence if present.
     if (CurTok == tok_number) {
       if (NumVal < 1 || NumVal > 100)
-        return LogErrorP("Invalid precedecnce: must be 1..100");
+        return LogErrorP("Invalid precedence: must be 1..100");
       BinaryPrecedence = (unsigned)NumVal;
       getNextToken();
     }
@@ -840,7 +840,7 @@ Value *IfExprAST::codegen() {
   if (!CondV)
     return nullptr;
 
-  // Convert condition to a bool by comparing equal to 0.0.
+  // Convert condition to a bool by comparing non-equal to 0.0.
   CondV = Builder.CreateFCmpONE(
       CondV, ConstantFP::get(TheContext, APFloat(0.0)), "ifcond");
 
@@ -963,7 +963,7 @@ Value *ForExprAST::codegen() {
   Value *NextVar = Builder.CreateFAdd(CurVar, StepVal, "nextvar");
   Builder.CreateStore(NextVar, Alloca);
 
-  // Convert condition to a bool by comparing equal to 0.0.
+  // Convert condition to a bool by comparing non-equal to 0.0.
   EndCond = Builder.CreateFCmpONE(
       EndCond, ConstantFP::get(TheContext, APFloat(0.0)), "loopcond");
 
@@ -1115,6 +1115,8 @@ static void InitializeModuleAndPassManager() {
   // Create a new pass manager attached to it.
   TheFPM = llvm::make_unique<legacy::FunctionPassManager>(TheModule.get());
 
+  // Promote allocas to registers.
+  TheFPM->add(createPromoteMemoryToRegisterPass());
   // Do simple "peephole" optimizations and bit-twiddling optzns.
   TheFPM->add(createInstructionCombiningPass());
   // Reassociate expressions.
@@ -1210,14 +1212,20 @@ static void MainLoop() {
 // "Library" functions that can be "extern'd" from user code.
 //===----------------------------------------------------------------------===//
 
+#ifdef LLVM_ON_WIN32
+#define DLLEXPORT __declspec(dllexport)
+#else
+#define DLLEXPORT
+#endif
+
 /// putchard - putchar that takes a double and returns 0.
-extern "C" double putchard(double X) {
+extern "C" DLLEXPORT double putchard(double X) {
   fputc((char)X, stderr);
   return 0;
 }
 
 /// printd - printf that takes a double prints it as "%f\n", returning 0.
-extern "C" double printd(double X) {
+extern "C" DLLEXPORT double printd(double X) {
   fprintf(stderr, "%f\n", X);
   return 0;
 }