On Sat, 22 Apr 2023 01:12:32 GMT, Vladimir Ivanov <vliva...@openjdk.org> wrote:
>> Cesar Soares Lucas has updated the pull request with a new target base due
>> to a merge or a rebase. The pull request now contains 10 commits:
>>
>> - Catching up with master
>>
>> Merge remote-tracking branch 'origin/master' into
>> rematerialization-of-merges
>> - Fix tests. Remember previous reducible Phis.
>> - Address PR review 3. Some comments and be able to abort compilation.
>> - Merge with Master
>> - Addressing PR review 2: refactor & reuse MacroExpand::scalar_replacement
>> method.
>> - Address PR feeedback 1: make ObjectMergeValue subclass of ObjectValue &
>> create new IR class to represent scalarized merges.
>> - Add support for SR'ing some inputs of merges used for field loads
>> - Fix some typos and do some small refactorings.
>> - Merge master
>> - Add support for rematerializing scalar replaced objects participating in
>> allocation merges
>
> src/hotspot/share/code/debugInfo.cpp line 232:
>
>> 230: // If we call select again on the same merge we should return the
>> same result
>> 231: if (_selected != nullptr) {
>> 232: return _selected;
>
> I'm not sure I understand how it is intended to work. The code below
> initializes `_selected`, but returns `nullptr` when `selector >= 0`.
> Subsequent calls will return non-null value.
This can be improved. I'll fix it.
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PR Review Comment: https://git.openjdk.org/jdk/pull/12897#discussion_r1175715702
