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-rw-r--r--byterun/alloc.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/byterun/alloc.c b/byterun/alloc.c
index ebe9961d3..d0fc9d65c 100644
--- a/byterun/alloc.c
+++ b/byterun/alloc.c
@@ -34,6 +34,7 @@ value alloc (mlsize_t wosize, tag_t tag)
mlsize_t i;
Assert (wosize > 0);
+ Assert (tag < 256);
if (wosize <= Max_young_wosize){
Alloc_small (result, wosize, tag);
if (tag < No_scan_tag){
@@ -52,6 +53,7 @@ value alloc_small (mlsize_t wosize, tag_t tag)
value result;
Assert (wosize > 0 && wosize <= Max_young_wosize);
+ Assert (tag < 256);
Alloc_small (result, wosize, tag);
return result;
}