Remove USED_HEAP_SIZE macro

(refactoring)

* allchblk.c (GC_allochblk): Replace USED_HEAP_SIZE to
GC_heapsize-GC_large_free_bytes.
* alloc.c (GC_finish_collection): Likewise.
* alloc.c (GC_finish_collection): Avoid potential underflow when
subtracting GC_used_heap_size_after_full from USED_HEAP_SIZE.
* include/private/gc_priv.h (USED_HEAP_SIZE): Remove macro.

1 files changed, 1 insertions, 1 deletions

diff --git a/allchblk.c b/allchblk.c
index d5941a03..72eec253 100644
--- a/allchblk.c
+++ b/allchblk.c
@@ -691,7 +691,7 @@ GC_allochblk(size_t sz, int kind, unsigned flags/* IGNORE_OFF_PAGE or 0 */)
 
     may_split = TRUE;
     if (GC_use_entire_heap || GC_dont_gc
-        || USED_HEAP_SIZE < GC_requested_heapsize
+        || GC_heapsize - GC_large_free_bytes < GC_requested_heapsize
         || GC_incremental || !GC_should_collect()) {
         /* Should use more of the heap, even if it requires splitting. */
         split_limit = N_HBLK_FLS;