slang.git/tests/spirv/tessellation.slang, branch master

Prepare VulkanSDK release Oct 2025 (#8525)

2025-09-25T04:49:26+00:00

Related to - https://github.com/shader-slang/slang/issues/8519

Emit DebugInfo for the legalized entry point parameters (#7703)

2025-09-02T19:51:12+00:00

This commit is to emit the debug-info for the entry point parameters. Two things are implemented/fixed in this PR: - We were not emitting the `DebugVar` and `DebugValue` at the IR lowering level when the type of the entry point parameter is `ConstRef`. This commit handles the `ConstRef` case in a same way that the other types are handled so that `DebugVar` and `DebugValues` are properly emitted at the IR lowering level. - Two types for Geometry shaders were incorrectly treated as not valid types for the DebugInfo. They are `InputPatch` and `OutputPatch`. This commit handles them as valid types for DebugInfo.

Emit OpExecutionMode SpacingEqual for Domain stage (#5696)

2024-11-29T07:56:47+00:00

Domain stage should emit one more `OpExecutionMode` with `SpacingEqual`, similary to how Hull stage does. Currently Hull stage emits four OpExecutionMode as following: OpExecutionMode %hullMain SpacingEqual OpExecutionMode %hullMain OutputVertices 4 OpExecutionMode %hullMain VertexOrderCw OpExecutionMode %hullMain Quads And Domain stage emits only one OpExecutionMode: OpExecutionMode %domainMain Quads This commit adds the following instruction for Domain stage: OpExecutionMode %domainMain SpacingEqual It is because the Vulkan Validation Layer prints error when the Domain shader didn't have `OpeExecutionMode SpacingEqual`. `SpacingEqual` corresponds to an attribute, `[partitioning("integer")]`, given to the Hull stage. Although Domain stage is not marked with same attribute, it is assumed to use the same value used for matching Hull Stage. The error message from VVL is following: ``` vkCreateShadersEXT(): pCreateInfos[2].stage is VK_SHADER_STAGE_TESSELLATION_EVALUATION_BIT, but spacing is not specified. The Vulkan spec states: If codeType is VK_SHADER_CODE_TYPE_SPIRV_EXT, and stage is VK_SHADER_STAGE_TESSELLATION_EVALUATION_BIT, pCode must contain an OpExecutionMode instruction specifying the spacing of segments on the edges of tessellated primitives (https://vulkan.lunarg.com/doc/view/1.3.283.0/windows/1.3-extensions/vkspec.html#VUID-VkShaderCreateInfoEXT-codeType-08874) ``` Co-authored-by: Ellie Hermaszewska

SPIRV backend: add support for tessellation stages, (#4336)

2024-06-11T19:31:37+00:00