RFR (XS) 8024774: assert(_con < t->is_tuple()->cnt()) failed: ProjNode::_con must be in range
vladimir.x.ivanov at oracle.com
Thu Oct 3 11:04:27 PDT 2013
I like the idea to convert j to int64. It looks much cleaner now.
Here's updated webrev:
On 10/3/13 8:57 PM, Vladimir Kozlov wrote:
> I don't think it is right. You need to have check before the loop's body
> Also what about case r->lo() == MIN_INT? (j - lowval) will underflow.
> I think we should use int64 type for these expressions as in other lines
> of this method.
> On 10/2/13 11:55 AM, Vladimir Ivanov wrote:
>> 7 lines changed: 4 ins; 0 del; 3 mod
>> If hi->hi() == MAX_INT then, after (j == r->hi() && r == hi), j++
>> overflows and j <= r->hi() succeeds again (leading to
>> extra iterations and infinite loop in the product).
>> The fix is to check whether upper limit is reached (j >= r->hi()) and
>> stop iterating, if necessary.
>> Also, did a small cleanup: eliminated unused parameter from
>> Testing: failing test case.
>> Reviewed-by: iveresov, ?
>> Best regards,
>> Vladimir Ivanov
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