skip preludes for some leaf fns

When rbp is not necessary to compile
a leaf function, we skip saving and
restoring it.

1 files changed, 2 insertions, 0 deletions

diff --git a/all.h b/all.h
index 3479d27..97cc41c 100644
--- a/all.h
+++ b/all.h
@@ -393,8 +393,10 @@ struct Fn {
 	Blk **rpo;
 	bits reg;
 	int slot;
+	int salign;
 	char vararg;
 	char dynalloc;
+	char leaf;
 	char name[NString];
 	Lnk lnk;
 };