gas: Generate function call

This is an initial commit that enables function calls. At this point
only functions with no parameters is going to work.

Signed-off-by: Carlos Maniero <carlos@maniero.me>

1 files changed, 5 insertions, 1 deletions

diff --git a/examples/main.pipa b/examples/main.pipa
index 2da2231..5ea0077 100644
--- a/examples/main.pipa
+++ b/examples/main.pipa
@@ -1,3 +1,7 @@
-fn main(): i32 {
+fn give_me_the_number(): i32 {
   return 69;
 }
+
+fn main(): i32 {
+  return give_me_the_number();
+}