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always expand ivar arrays to max width

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If the instance variable table hasn't been "expanded", allocate the
maximum size of the ivar table.  This operates under the assumption that
most objects will eventually expand their ivar array to the maximum
width anyway, so we may as well avoid realloc calls.
This commit is contained in:
Aaron Patterson 2019-07-02 10:33:40 +01:00 • committed by Aaron Patterson
parent 95d23f36ff
commit b0bf654c31
Notes: git 2020-01-07 05:42:01 +09:00
1 changed files with 1 additions and 2 deletions
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3
variable.c
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@ -896,8 +896,7 @@ iv_index_tbl_newsize(struct ivar_update *ivup)
uint32_t index = (uint32_t)ivup->index; /* should not overflow */
uint32_t newsize = (index+1) + (index+1)/4; /* (index+1)*1.25 */
if (!ivup->iv_extended &&
ivup->u.iv_index_tbl->num_entries < (st_index_t)newsize) {
if (!ivup->iv_extended) {
newsize = (uint32_t)ivup->u.iv_index_tbl->num_entries;
}
return newsize;