Added INPUT, OUTPUT and DECLARE

1 files changed, 32 insertions, 0 deletions

diff --git a/include/cps/CodeGen.h b/include/cps/CodeGen.h
new file mode 100644
index 0000000..2621795
--- /dev/null
+++ b/include/cps/CodeGen.h
@@ -0,0 +1,32 @@
+#pragma once
+#include "cps/AST.h"
+#include "llvm/IR/IRBuilder.h"
+#include "llvm/IR/LLVMContext.h"
+#include "llvm/IR/Module.h"
+#include <map>
+
+namespace cps {
+
+class CodeGen {
+    std::unique_ptr<llvm::LLVMContext> TheContext;
+    std::unique_ptr<llvm::Module> TheModule;
+    std::unique_ptr<llvm::IRBuilder<>> Builder;
+    std::map<std::string, llvm::AllocaInst*> NamedValues;
+
+    llvm::AllocaInst *CreateEntryBlockAlloca(llvm::Function *TheFunction, 
+                                            const std::string &VarName);
+
+    llvm::FunctionCallee PrintfFunc;
+    llvm::FunctionCallee ScanfFunc;
+    llvm::Value *PrintfFormatStr;
+    llvm::Value *ScanfFormatStr;
+
+    void SetupExternalFunctions();
+
+public:
+    CodeGen();
+    void compile(const std::vector<std::unique_ptr<StmtAST>> &Statements);
+    void print();
+};
+
+} // namespace cps