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[SYCL][Docs] Invert group numbering for ballot groups #12905

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merged 2 commits into from
Mar 7, 2024
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[SYCL][Docs] Invert group numbering for ballot groups #12905

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d141074
[SYCL][Docs] Invert group numbering for ballot groups
steffenlarsen Mar 5, 2024
dabdb71
Add line about possibly empty groups
steffenlarsen Mar 7, 2024
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6 changes: 4 additions & 2 deletions sycl/doc/extensions/experimental/sycl_ext_oneapi_non_uniform_groups.asciidoc
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Original file line number Diff line number Diff line change
Expand Up @@ -337,8 +337,8 @@ id_type get_group_id() const;
----
_Returns_: An `id` representing the index of the ballot-group.

NOTE: This will always be either 0 (representing the group of work-items where
the predicate was true) or 1 (representing the group of work-items where the
NOTE: This will always be either 1 (representing the group of work-items where
the predicate was true) or 0 (representing the group of work-items where the
predicate was false).

[source,c++]
Expand All @@ -357,6 +357,8 @@ _Returns_: A `range` representing the number of ballot-groups.
NOTE: This will always return a `range` of 2, as there will always be two groups;
one representing the group of work-items where the predicate was true and
another representing the group of work-items where the predicate was false.
It is possible for one of these groups to contain no work-items, if the
predicate has the same value on all work-items.

[source,c++]
----
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