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(free_float, free_cons): Don't use the same field for chaining as for marking.

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(make_float, Fcons, gc_sweep): Corresponding changes.
This commit is contained in:
Richard M. Stallman
1997-09-01 23:37:14 +00:00
parent 35ce8cd793
commit 1cd5fe6a3a
1 changed files with 10 additions and 6 deletions
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16
src/alloc.c
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@@ -588,7 +588,7 @@ init_float ()
free_float (ptr)
struct Lisp_Float *ptr;
{
*(struct Lisp_Float **)&ptr->type = float_free_list;
*(struct Lisp_Float **)&ptr->data = float_free_list;
float_free_list = ptr;
}
@@ -600,8 +600,10 @@ make_float (float_value)
if (float_free_list)
{
/* We use the data field for chaining the free list
so that we won't use the same field that has the mark bit. */
XSETFLOAT (val, float_free_list);
float_free_list = *(struct Lisp_Float **)&float_free_list->type;
float_free_list = *(struct Lisp_Float **)&float_free_list->data;
}
else
{
@@ -668,7 +670,7 @@ init_cons ()
free_cons (ptr)
struct Lisp_Cons *ptr;
{
*(struct Lisp_Cons **)&ptr->car = cons_free_list;
*(struct Lisp_Cons **)&ptr->cdr = cons_free_list;
cons_free_list = ptr;
}
@@ -681,8 +683,10 @@ DEFUN ("cons", Fcons, Scons, 2, 2, 0,
if (cons_free_list)
{
/* We use the cdr for chaining the free list
so that we won't use the same field that has the mark bit. */
XSETCONS (val, cons_free_list);
cons_free_list = *(struct Lisp_Cons **)&cons_free_list->car;
cons_free_list = *(struct Lisp_Cons **)&cons_free_list->cdr;
}
else
{
@@ -2134,7 +2138,7 @@ gc_sweep ()
if (!XMARKBIT (cblk->conses[i].car))
{
num_free++;
*(struct Lisp_Cons **)&cblk->conses[i].car = cons_free_list;
*(struct Lisp_Cons **)&cblk->conses[i].cdr = cons_free_list;
cons_free_list = &cblk->conses[i];
}
else
@@ -2164,7 +2168,7 @@ gc_sweep ()
if (!XMARKBIT (fblk->floats[i].type))
{
num_free++;
*(struct Lisp_Float **)&fblk->floats[i].type = float_free_list;
*(struct Lisp_Float **)&fblk->floats[i].data = float_free_list;
float_free_list = &fblk->floats[i];
}
else