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Force code_object_v2 for amd gpu backend - #4099
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masahi
commented
Oct 11, 2019
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Does v2 work on recent LLVM? |
petrex
commented
Oct 11, 2019
ContributorAuthor
code_object_v2 is still supported, although this is not the default. A side note: we are sorting out issue w.r.t to code_object_v3. At this moment, code_object_v2 would be a safer choice. |
masahi
approved these changes
Oct 11, 2019
t-vi
commented
Oct 11, 2019
Contributor
Just to add some note about the impact: This fixes the cross-thread reductions, which were broken because the code v3 objects seem to loose the fixed group segment ("shared memory") property, and reading out of bounds returns 0. |
petrex
commented
Oct 11, 2019
ContributorAuthor
yes, this is one of the motivations behind the fix. Thanks for the confirmation. |
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Goal : Stick to code_object_v2 for LLVM AMDGPU backend at this moment.
I am taking the action item to enable code_object_v3 when it's ready and validated.