slang.git/tests/language-feature/capability, branch master

[CBP] Pointer frontend changes + groupshared pointer support (#7848)

2025-08-29T22:52:34+00:00

Resolves #7628 Resolves: #8197 Primary Goals: 1. Add `Access` to pointer 2. AddressSpace::GroupShared support for pointers (SPIR-V) 3. Add `__getAddress()` to replace `&` * `&` is not updated to `require(cpu)` since slangpy uses `&`. This means we must: (1) merge PR; (2) replace `&` with `__getAddress()`; (3) add `require(cpu)` to `&` Changes: * Added to `Ptr` the `Access` generic argument & logic (for `Access::Read`). * Moved the generic argument `AddressSpace` from `Ptr` to the end of the type. * Added pointer casting support between any `Ptr` as long as the `AddressSpace` is the same * Disallow globallycoherent T* and coherent T* * Disallow const T*, T const*, and const T* * Fixed .natvis display of `ConstantValue` `ValOperandNode` * Support generic resolution of type-casted integers * Added `VariablePointer` emitting for spirv + other minor logic needed for groupshared pointers Breaking Changes: * Anyone using the `AddressSpace` of `Ptr` will now have to account for the `Access` argument * we disallow various syntax paired with `Ptr` and `T*` --------- Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>

[Capability System] Fix bug where capabilities do not correctly propegate if AST-parent has target+set the AST-child does not (#8175)

2025-08-14T19:27:55+00:00

Fixes: #8174 Changes: * To determine if we propagate capabilities, we need to ensure that a `join` will do nothing (optimization since `join` is expensive + caching data for the `join` adds up to be expensive). This logic was changed in `slang-check-decl.cpp` since the current logic was incorrect. * A parent could have the set `metal+glsl` and the use-site could have `glsl`. In this case, we will not remove `metal` from the parent since `{metal+glsl}.implies({glsl})` is true. --------- Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>

Error if super-type capabilities are a super-set of sub-type (#7452)

2025-08-08T20:19:25+00:00

Fixes: #7410 Changes: 1. super-type capabilities must be a super-set of sub-type capabilities (and support the same shader stages/targets) * InheritanceDecl visits super-type to inherit it's capabilities; validate InheritanceDecl capabilities against sub-type * visit all container decl's with a default case * clean up functionDeclBase visitor * Simplify `diagnoseUndeclaredCapability` by moving logic into capability checking (more correct*) 3. added changed behavior to documentation 4. fixed some incorrect capabilities 5. **we do not** diagnose capability errors on interface requirement-to-implementation if both lack explicit capability requirements. This change is to work around a slangpy regression (test case for the failing situation is in `tests\language-feature\capability\capability-interface-extension-1.slang`), Note: maybe for slang-2026 we don't do this? 6. requirement & implementation must support the same shader stage/target. This was changed because otherwise we can have cases where `X` inherits from `Y`, but `Y` is only expected to be used in `glsl` whilst `X` is expected to be used in `hlsl | glsl` 7. removed `tests/language-feature/capability/capabilitySimplification3.slang` because it tests nothing special (redundant) Note: not using rebase due to separate branches depending on this PR --------- Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>

fix #7869 (#7871)

2025-07-23T05:20:42+00:00

Add MLP training examples. (#7550)

2025-06-30T21:32:50+00:00

* Add MLP training examples. * Formatting fix. * Fix. * Improve documentation on coopvector. * Improve doc. * Update doc. * Fix typo. * Cleanup shader. * Cleanup. * Fix test. * Fix type check recursion. * Fix. * Fix. * Fix override check.

Add check for the variable requirement (#6677)

2025-05-31T00:16:59+00:00

* Add check for the variable requirement This change adds the capability check for the variables requirement. With this check, the shader ``` [require(cpp_cuda_glsl_hlsl_metal_spirv)] Buffer InputTyped; [require(cpp_cuda_glsl_hlsl_metal_spirv)] RWBuffer OutputTyped; ``` will issue error if targeting to WSGL e.g. `.\build\Debug\bin\slangc .\tests\wgsl_no_buffer.slang -o wgsl_no_buffer.txt -target wgsl -entry Main -stage compute` .\tests\wgsl_no_buffer.slang(2): error 36108: 'InputTyped' has dependencies that are not compatible on the required target 'wgsl'. Buffer InputTyped; ^~~~~~~~~~ .\tests\wgsl_no_buffer.slang(4): error 36108: 'OutputTyped' has dependencies that are not compatible on the required target 'wgsl'. RWBuffer OutputTyped; ^~~~~~~~~~~ Fixes #6304 * Add var capability tests * Do capability checks for global var only * Add inferredCapabilityRequirements to var capability check * Add requirement to the intrinsic types Buffer/RWBuffer * format code * Update capabliity test * use DefaultDataLayout as default data layout * Use visitMemberExpr to check the capabilities * Update the cap tests to match the error messages * update test to use the ScalarDataLayout for hlsl target * Update tests check condition to use error number only * Add default push_constant data layout type --------- Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>

Add full support for SPV_NV_shader_subgroup_partitioned (#7103)

2025-05-25T16:58:08+00:00

* Properly implement WaveMask* variants of WaveMultiPrefix* intrinsics * More partitioned intrinsics * More partitioned intrinsics and cleaned up non-prefixed WaveMask* implementations * Refactor HLSL WaveMultiPrefix* implementations * fix cap atoms * Clean up implementation * Add GLSL intrinsics and cleanup * Add tests * Fix affected capability test * Update and fix tests * Move expected.txt file * Refactor WaveMask* to call WaveMulti* * Refactor SPIRV/GLSL preamble code * Enable emit-via-glsl tests * remove wave_multi_prefix capability in favor of subgroup_partitioned * Update docs * Update cap atoms doc

Add subscript operator support in cuda (#6830)

2025-04-30T10:37:02+00:00

* cuda: Add support for subscript operator This CL adds support for the subscript operator for Read Only textures in cuda. Also adds a test for this. Fixes #6781 * format code * fix review comments * format code --------- Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com> Co-authored-by: Ellie Hermaszewska

Update spirv-tools to for SDK v2025.2 (#6893)

2025-04-25T17:39:45+00:00

* Update spirv-tools to for SDK v2025.2 Fixes: #6850 * bump spirv version to 1.4 for op linkage * skip-spirv-validation for coop mat * add skip-spirv-validation option to slang session desc * use SPV_ENV_UNIVERSAL_1_6 for spirv-tool env target Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com> --------- Co-authored-by: slangbot Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>

Make capability diagnostic message more friendly. (#6474)

2025-02-27T21:21:20+00:00

* Make capability diagnostic message more friendly. * Fix. * Fix. * Fix. * Fix test. * Update expected fail setting for aarch64/linux * Fix.