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allow primcall ops to push 0 values

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* libguile/objcodes.c (OBJCODE_COOKIE): Bump the objcode cookie. We'll
  be doing this on incompatible changes until 2.0.

* libguile/vm-i-scheme.c (set_car, set_cdr, slot_set): These
  instructions don't have natural return values -- so declare them that
  way, that they push 0 values.

* module/language/tree-il/compile-glil.scm (flatten): When compiling
  primitive calls, check `(instruction-pushes op)' to see how many
  values that instruction will push, and do something appropriate,
  instead of just assuming that all primcall ops push 1 value.
This commit is contained in:
Andy Wingo 2009-06-24 15:14:00 +02:00
parent a84673a68b
commit 60ed31d28b
3 changed files with 34 additions and 16 deletions
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27
libguile/vm-i-scheme.c
View file

@ -1,4 +1,4 @@
/* Copyright (C) 2001 Free Software Foundation, Inc.
/* Copyright (C) 2001, 2009 Free Software Foundation, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
@ -131,20 +131,24 @@ VM_DEFINE_FUNCTION (92, cdr, "cdr", 1)
RETURN (SCM_CDR (x));
}
VM_DEFINE_FUNCTION (93, set_car, "set-car!", 2)
VM_DEFINE_INSTRUCTION (93, set_car, "set-car!", 0, 2, 0)
{
ARGS2 (x, y);
SCM x, y;
POP (y);
POP (x);
VM_VALIDATE_CONS (x);
SCM_SETCAR (x, y);
RETURN (SCM_UNSPECIFIED);
NEXT;
}
VM_DEFINE_FUNCTION (94, set_cdr, "set-cdr!", 2)
VM_DEFINE_INSTRUCTION (94, set_cdr, "set-cdr!", 0, 2, 0)
{
ARGS2 (x, y);
SCM x, y;
POP (y);
POP (x);
VM_VALIDATE_CONS (x);
SCM_SETCDR (x, y);
RETURN (SCM_UNSPECIFIED);
NEXT;
}
@ -263,13 +267,16 @@ VM_DEFINE_FUNCTION (107, slot_ref, "slot-ref", 2)
RETURN (SCM_PACK (SCM_STRUCT_DATA (instance) [slot]));
}
VM_DEFINE_FUNCTION (108, slot_set, "slot-set", 3)
VM_DEFINE_INSTRUCTION (108, slot_set, "slot-set", 0, 3, 0)
{
SCM instance, idx, val;
size_t slot;
ARGS3 (instance, idx, val);
POP (val);
POP (idx);
POP (instance);
slot = SCM_I_INUM (idx);
SCM_STRUCT_DATA (instance) [slot] = SCM_UNPACK (val);
RETURN (SCM_UNSPECIFIED);
NEXT;
}
/*