Add LLVM

Signed-off-by: Slendi <slendi@socopon.com>

src/main.odin

@@ -4,42 +4,79 @@ import "core:fmt"
 import "core:os"
 
 main :: proc() {
-	handle: os.Handle
+	ctx := LLVMContextCreate()
-	if len(os.args) >= 2 {
+	defer LLVMContextDispose(ctx)
-		errno: os.Errno
+	module := LLVMModuleCreateWithNameInContext("hello", ctx)
-		handle, errno = os.open(os.args[1])
+	defer LLVMDisposeModule(module)
-		if errno != 0 {
+	builder := LLVMCreateBuilderInContext(ctx)
-			fmt.printf("Error opening file\n", errno)
-				return
-		}
-	} else {
-		handle = os.stdin
-	}
-	defer os.close(handle)
 
-	data, err := os.read_entire_file_from_handle(handle)
+	int_8_type := LLVMInt8TypeInContext(ctx)
-	if !err {
+	int_8_type_ptr := LLVMPointerType(int_8_type, 0)
-		fmt.printf("Error reading file\n", err)
+	int_32_type := LLVMInt32TypeInContext(ctx)
-		return
+
+	puts_function_args_type := []LLVMTypeRef{
+		int_8_type_ptr,
 	}
 
-	u8_arr : [dynamic]u8
+	puts_function_type := LLVMFunctionType(int_32_type, raw_data(puts_function_args_type), 1, LLVMBool(0))
-	for ch in data {
+	puts_function := LLVMAddFunction(module, "puts", puts_function_type)
-		append(&u8_arr, u8(ch))
+
+	main_function_type := LLVMFunctionType(int_32_type, nil, 0, LLVMBool(0))
+	main_function := LLVMAddFunction(module, "main", main_function_type)
+
+	entry := LLVMAppendBasicBlockInContext(ctx, main_function, "entry")
+	LLVMPositionBuilderAtEnd(builder, entry)
+
+	puts_function_args := []LLVMValueRef {
+		LLVMBuildPointerCast(
+			builder,
+			LLVMBuildGlobalString(builder, "Hello world!\n", "hello"),
+			int_8_type_ptr,
+			"0",
+		),
 	}
 
-	lexer := lexer_create(&u8_arr)
+	LLVMBuildCall2(builder, puts_function_type, puts_function, raw_data(puts_function_args), len(puts_function_args), "i")
-	parser := parser_create(lexer)
+	LLVMBuildRet(builder, LLVMConstInt(int_32_type, 0, LLVMBool(0)))
 
-	ast := parser_parse(&parser)
+	LLVMPrintModuleToFile(module, "hello.ll", nil)
-	type_check(ast, nil)
-	if len(g_message_list) > 0 {
-		for msg in g_message_list {
-			fmt.printf("%s\n", msg)
-		}
-		return
-	}
 
-	node_print(ast)
+	//handle: os.Handle
+	//if len(os.args) >= 2 {
+	//	errno: os.Errno
+	//	handle, errno = os.open(os.args[1])
+	//	if errno != 0 {
+	//		fmt.printf("Error opening file\n", errno)
+	//			return
+	//	}
+	//} else {
+	//	handle = os.stdin
+	//}
+	//defer os.close(handle)
+
+	//data, err := os.read_entire_file_from_handle(handle)
+	//if !err {
+	//	fmt.printf("Error reading file\n", err)
+	//	return
+	//}
+
+	//u8_arr : [dynamic]u8
+	//for ch in data {
+	//	append(&u8_arr, u8(ch))
+	//}
+
+	//lexer := lexer_create(&u8_arr)
+	//parser := parser_create(lexer)
+
+	//ast := parser_parse(&parser)
+	//type_check(ast, nil)
+	//if len(g_message_list) > 0 {
+	//	for msg in g_message_list {
+	//		fmt.printf("%s\n", msg)
+	//	}
+	//	return
+	//}
+
+	//node_print(ast)
 }