If dividing by 1, just return the numerator

This avoids allocating a new mp_int and actually performing the division.
MoarVM · Oct 27, 2017 · d42bf0c · d42bf0c
1 parent 213fc77
commit d42bf0c
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/src/math/bigintops.c b/src/math/bigintops.c
@@ -554,6 +554,10 @@ MVMObject *MVM_bigint_div(MVMThreadContext *tc, MVMObject *result_type, MVMObjec
 
     int mp_result;
 
+    if (!MVM_BIGINT_IS_BIG(bb) && bb->u.smallint.value == 1) {
+        return a;
+    }
+
     MVMROOT(tc, a, {
     MVMROOT(tc, b, {
         result = MVM_repr_alloc_init(tc, result_type);