[Guile-commits] 01/02: Fix bug in compile-alloc-frame

[Andy Wingo]

wingo pushed a commit to branch lightning
in repository guile.

commit 02a9e76b57dda9620ba87c13a3e993673809c48c
Author: Andy Wingo <address@hidden>
Date:   Fri Aug 24 12:14:29 2018 +0200

    Fix bug in compile-alloc-frame
    
    * libguile/jit.c (compile_alloc_frame): Fix alloc-frame filling in of
      undefined values for when previous frame size was unknown.
---
 libguile/jit.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libguile/jit.c b/libguile/jit.c
index d5d2a20..bee04db 100644
--- a/libguile/jit.c
+++ b/libguile/jit.c
@@ -1308,6 +1308,7 @@ compile_alloc_frame (scm_jit_state *j, uint32_t nlocals)
       jit_node_t *head, *k, *back;
       jit_movi (T0, SCM_UNPACK (SCM_UNDEFINED));
       k = jit_bler (T3_PRESERVED, SP);
+      jit_subi (T3_PRESERVED, T3_PRESERVED, sizeof (union 
scm_vm_stack_element));
       head = jit_label ();
       jit_str (T3_PRESERVED, T0);
       jit_subi (T3_PRESERVED, T3_PRESERVED, sizeof (union 
scm_vm_stack_element));