feat: implement shift operators

1 files changed, 7 insertions, 0 deletions

diff --git a/codegen.c b/codegen.c
index 92a8619..f717c25 100644
--- a/codegen.c
+++ b/codegen.c
@@ -174,6 +174,13 @@ void codegen_binary_expr(CodeGen* g, AstNode* ast, GenMode gen_mode) {
         printf("  mov rax, rdx\n");
     } else if (ast->node_op == TokenKind_or) {
         printf("  or rax, rdi\n");
+    } else if (ast->node_op == TokenKind_lshift) {
+        printf("  mov rcx, rdi\n");
+        printf("  shl rax, cl\n");
+    } else if (ast->node_op == TokenKind_rshift) {
+        // TODO: check if the operand is signed or unsigned
+        printf("  mov rcx, rdi\n");
+        printf("  sar rax, cl\n");
     } else if (ast->node_op == TokenKind_eq) {
         printf("  cmp rax, rdi\n");
         printf("  sete al\n");