1 files changed, 38 insertions, 0 deletions
diff --git a/src/codegen.c b/src/codegen.c
new file mode 100644
index 0000000..a9e5006
--- /dev/null
+++ b/src/codegen.c
@@ -0,0 +1,38 @@
+#include <llvm-c/Analysis.h>
+#include <llvm-c/Core.h>
+
+#include "codegen.h"
+
+void
+codegen(struct ast_soa ast, struct lexemes_soa toks)
+{
+	(void)ast;
+	(void)toks;
+
+	/* Create a new module */
+	LLVMModuleRef mod = LLVMModuleCreateWithName("oryx");
+
+	/* Declare the function ‘sum :: (int, int) int’ */
+	LLVMTypeRef param_types[] = {LLVMInt32Type(), LLVMInt32Type()};
+	LLVMTypeRef ret_type = LLVMFunctionType(LLVMInt32Type(), param_types, 2, 0);
+	LLVMValueRef sum = LLVMAddFunction(mod, "sum", ret_type);
+
+	/* Create an entry block, and a builder */
+	LLVMBasicBlockRef entry = LLVMAppendBasicBlock(sum, "entry");
+	LLVMBuilderRef builder = LLVMCreateBuilder();
+	LLVMPositionBuilderAtEnd(builder, entry);
+
+	/* Generate an ADD instruction */
+	LLVMValueRef tmp = LLVMBuildAdd(builder, LLVMGetParam(sum, 0),
+	                                LLVMGetParam(sum, 1), "tmpadd");
+	LLVMBuildRet(builder, tmp);
+
+	/* Verify that all went well and if not we abort */
+	char *error = NULL;
+	LLVMVerifyModule(mod, LLVMAbortProcessAction, &error);
+	LLVMDisposeMessage(error);
+
+	LLVMDumpModule(mod);
+
+	LLVMDisposeBuilder(builder);
+}