[naga] Implement subgroup quad ops#5684
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valaphee wants to merge 5 commits intogfx-rs:trunkfrom
valaphee:subgroup-quad
Closed
[naga] Implement subgroup quad ops#5684valaphee wants to merge 5 commits intogfx-rs:trunkfrom valaphee:subgroup-quad
valaphee wants to merge 5 commits intogfx-rs:trunkfrom
valaphee:subgroup-quad
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cwfitzgerald
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May 29, 2024
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cwfitzgerald
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Approving the (minimal) wgpu side
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teoxoy
requested changes
Jun 24, 2024
| /// Each gathers from their lane xored with the given by the expression | ||
| ShuffleXor(Handle<Expression>), | ||
| /// All gather from the same lane at the index given by the expression | ||
| QuadBroadcast(Handle<Expression>), |
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In the proposal this expression needs to be a constant-expression due to a SPIR-V limitation.
Before version 1.5, Index must come from a constant instruction.
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| instruction | ||
| } | ||
| pub(super) fn group_non_uniform_quad_broadcast( |
Collaborator
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Any update on this? |
Member
|
@valaphee are you still planning to push this forward? |
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Author
|
its a bit outdated, and don't have the time to complete this PR atm |
Member
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Closing for now - please re-open if you (or anyone else) wants to push this forward. |
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Connections
Partially solves #5555
Resolves #5670
https://github.com/gpuweb/gpuweb/blob/main/proposals/subgroups.md
Description
Describe what problem this is solving, and how it's solved.
Testing
Explain how this change is tested.
Checklist
cargo fmt.cargo clippy. If applicable, add:--target wasm32-unknown-unknown--target wasm32-unknown-emscriptencargo xtask testto run tests.CHANGELOG.md. See simple instructions inside file.