[Kaleidoscope] Remove RTTI use from chapters 7 and 8.
llvm-svn: 235541
diff --git a/llvm/examples/Kaleidoscope/Chapter7/toy.cpp b/llvm/examples/Kaleidoscope/Chapter7/toy.cpp
index 53ea51c..acf21f89 100644
--- a/llvm/examples/Kaleidoscope/Chapter7/toy.cpp
+++ b/llvm/examples/Kaleidoscope/Chapter7/toy.cpp
@@ -713,7 +713,10 @@
// Special case '=' because we don't want to emit the LHS as an expression.
if (Op == '=') {
// Assignment requires the LHS to be an identifier.
- VariableExprAST *LHSE = dynamic_cast<VariableExprAST *>(LHS);
+ // This assume we're building without RTTI because LLVM builds that way by
+ // default. If you build LLVM with RTTI this can be changed to a
+ // dynamic_cast for automatic error checking.
+ VariableExprAST *LHSE = reinterpret_cast<VariableExprAST *>(LHS);
if (!LHSE)
return ErrorV("destination of '=' must be a variable");
// Codegen the RHS.