Displaying 5 results from an estimated 5 matches for "d71126".
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2020 Oct 08
2
Undef and Poison round table follow-up & a plan
...updated to introduce
`poison` instead.
For the step (2), we need an experimental result showing that it does not
cause
performance degradation. This relies on better support for freeze (the
no-undef/poison analysis patches).
*1. Introduce a new `poison` constant into IR*:
https://reviews.llvm.org/D71126
Note that `poison` constant can be used as a true placeholder value as well.
Undef cannot be used in general because it is less undefined than poison.
*2. Update transformations that introduce `undef` to introduce `poison`
instead*
(1) There are transformations that introduce `undef` as a placeh...
2020 Oct 08
2
Undef and Poison round table follow-up & a plan
...(2), we need an experimental result showing that it does not
>> cause
>> performance degradation. This relies on better support for freeze (the
>> no-undef/poison analysis patches).
>>
>> *1. Introduce a new `poison` constant into IR*:
>> https://reviews.llvm.org/D71126
>>
>> Note that `poison` constant can be used as a true placeholder value as
>> well.
>> Undef cannot be used in general because it is less undefined than poison.
>>
>> *2. Update transformations that introduce `undef` to introduce `poison`
>> instead*
>...
2020 Oct 09
2
Undef and Poison round table follow-up & a plan
...it does
>>>> not cause
>>>> performance degradation. This relies on better support for freeze (the
>>>> no-undef/poison analysis patches).
>>>>
>>>> *1. Introduce a new `poison` constant into IR*:
>>>> https://reviews.llvm.org/D71126
>>>>
>>>> Note that `poison` constant can be used as a true placeholder value as
>>>> well.
>>>> Undef cannot be used in general because it is less undefined than
>>>> poison.
>>>>
>>>> *2. Update transformations th...
2020 Oct 09
2
Undef and Poison round table follow-up & a plan
...>>>>> performance degradation. This relies on better support for freeze (the
>>>>>> no-undef/poison analysis patches).
>>>>>>
>>>>>> *1. Introduce a new `poison` constant into IR*:
>>>>>> https://reviews.llvm.org/D71126
>>>>>>
>>>>>> Note that `poison` constant can be used as a true placeholder value
>>>>>> as well.
>>>>>> Undef cannot be used in general because it is less undefined than
>>>>>> poison.
>>>>>>...
2020 Oct 10
2
Undef and Poison round table follow-up & a plan
...er support for freeze
>>>>>>>> (the
>>>>>>>> no-undef/poison analysis patches).
>>>>>>>>
>>>>>>>> *1. Introduce a new `poison` constant into IR*:
>>>>>>>> https://reviews.llvm.org/D71126
>>>>>>>>
>>>>>>>> Note that `poison` constant can be used as a true placeholder value
>>>>>>>> as well.
>>>>>>>> Undef cannot be used in general because it is less undefined than
>>>>>>...