Remove 'opp' local variable in GC_malloc_X

(code refactoring)

* alloc.c: Update comment (about free lists).
* fnlz_mlc.c (GC_finalized_malloc): Remove "opp" local variable
(replace *opp with <kind>freelist[lg]).
* gcj_mlc.c (GC_gcj_malloc, GC_gcj_malloc_ignore_off_page): Likewise.
* malloc.c (GC_malloc_atomic, GC_malloc, GC_malloc_uncollectable):
Likewise.
* mallocx.c (GC_malloc_atomic_uncollectable): Likewise.
* typd_mlc.c (GC_malloc_explicitly_typed,
GC_malloc_explicitly_typed_ignore_off_page,
GC_calloc_explicitly_typed): Likewise.

1 files changed, 8 insertions, 5 deletions

diff --git a/alloc.c b/alloc.c
index b9039e09..f0b1c11f 100644
--- a/alloc.c
+++ b/alloc.c
@@ -32,12 +32,15 @@
  * kind k objects of size i points to a non-empty
  * free list. It returns a pointer to the first entry on the free list.
  * In a single-threaded world, GC_allocobj may be called to allocate
- * an object of (small) size i as follows:
+ * an object of (small) size lb as follows:
  *
- *            opp = &(GC_objfreelist[i]);
- *            if (*opp == 0) GC_allocobj(i, NORMAL);
- *            ptr = *opp;
- *            *opp = obj_link(ptr);
+ *   lg = GC_size_map[lb];
+ *   op = GC_objfreelist[lg];
+ *   if (NULL == op) {
+ *     op = GENERAL_MALLOC(lb, NORMAL);
+ *   } else {
+ *     GC_objfreelist[lg] = obj_link(op);
+ *   }
  *
  * Note that this is very fast if the free list is non-empty; it should
  * only involve the execution of 4 or 5 simple instructions.