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Subgroup Operations#4190

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exrook wants to merge 53 commits intogfx-rs:trunkgfx-rs/wgpu:trunkfrom exrook:subgroup_featureexrook/wgpu:subgroup_featureCopy head branch name to clipboard

+3,092-23

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Commits on Oct 25, 2023

• subgroup: Implement subgroupBallot for wgsl-in, wgsl-out, spv-out, hlsl-out

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• subgroup: subgroupBallot metal out

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• subgroup: require GroupNonUnifomBallot capability

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• subgroup: Add subgroup invocation id and subgroup size builtins

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• subgroup: SubgroupInvocationId is only valid in compute stages

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• subgroup: expierment with subgroupBarrier() based on OpControlbarrier

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• subgroup: add statement for rest of subgroup ops

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• subgroup: fix doc error on SubgroupBroadcast

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• subgroup: wgsl-in and spv-out for subgroup operations

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• subgroup: add optional predicate for subgroupBallot

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• Renames SubgroupBroadcast => SubgroupGather and BroadcastMode => GatherMode.

  

  Lichtso

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• General fixes.

  

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• Adds BuiltIn::NumSubgroups, BuiltIn::SubgroupId.

  

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• Adds GatherMode::Shuffle, GatherMode::ShuffleDown, GatherMode::ShuffleUp, GatherMode::ShuffleXor.

  

  Lichtso

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• Implements all frontends and backends.

  

  Lichtso

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• Adjusts metal backend test_stack_size().

  

  Lichtso

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• Adds test and snapshots.

  

  Lichtso

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• subgroup: fix spv-in

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• subgroup: Add 0 arg subgroupBallot to tests and fix wgsl-out whitespace

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• subgroup: Add spv-in test

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• subgroup: resolve fixmes & fix typo

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• subgroup: Add subgroup capability

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• subgroup: Treat subgroup operation results as non-uniform

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• subgroup: refactor wgsl subgroup gather parsing

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• subgroup: doc comments for subgroup Statements and Expressions

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• subgroup: add validation for each subgroup operation type

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• Add feature for subgroup operations in fragment and compute shaders

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• Adds feature detection for Vulkan.

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• Adds feature detection for Metal.

  

  Lichtso

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• Adds feature detection for DirectX 12.

  

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• Adds subgroup_operations tests.

  

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• Pass subgroup capability to naga

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• Separate subgroup feature into one flag per shader stage

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Commits on Oct 26, 2023

• Merge branch 'trunk' into subgroup_feature

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• Merge branch 'trunk' into subgroup_feature

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Commits on Oct 28, 2023

• Merge branch 'trunk' into subgroup_feature

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• Fix compiles

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Commits on Nov 1, 2023

• subgroups: DX12 doesn't support subgroup ops in vertex stage

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• Merge branch 'trunk' into subgroup_feature

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Commits on Nov 5, 2023

• subgroup: fix hlsl subgroup_id

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• subgroups: update naga snapshots

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• Merge branch 'trunk' into subgroup_feature

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Commits on Nov 6, 2023

• subgroups: fix gpu test on systems with subgroup size of 1

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Commits on Nov 7, 2023

• subgroup: emit Shuffle instead of Broadcast on spv-out

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Commits on Nov 16, 2023

• subgroup: Use bitmask to track pass/failed tests

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Commits on Nov 21, 2023

• subgroups: Print detailed error message on test failure

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• subgroups: Add tests in divergent control flow

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• subgroups: correct changelog entry PR link

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Commits on Nov 22, 2023

• Merge branch 'trunk' into subgroup_feature

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Commits on Nov 28, 2023

• Merge branch 'trunk' into HEAD

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• subgroups: Expect test failures on metal

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• subgroups: Add test for divergent for loop

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• subgroups: Verify convergence after finishing other tests

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