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2025-02-24set depth 2 for CI submodules (#6436)Mukund Keshava
2025-02-24Do not perform deep checkout of submodules (#6410)Mukund Keshava
* Do not perform deep checkout of submodules Fixes #5465 * Remove shallow clone for release as suggested by csyonghe --------- Co-authored-by: Ellie Hermaszewska <ellieh@nvidia.com>
2025-02-23Improve performance when compiling small shaders. (#6396)Yong He
Improve performance when compiling small shaders. Avoid copying witness table entries that are not getting used during linking. Avoid copying auto-diff related decorations and derivative functions during linking, if the user modules doesn't use autodiff. Cache operator overload resolution results on global session, so each new Session doesn't need to repetitively run through overload resolution from scratch.
2025-02-21Fix slang raytracing test (#6404)ksavoie-nv
* Plumb raytracing shaders through render-test-main RenderTestApp is missing handling for RayTracing in a few places. * fixup formatting * enable optix test category by default * Revert "enable optix test category by default" This reverts commit d142068058a827843fd7ebcf89a6ec252fd3c69a. --------- Co-authored-by: cheneym2 <acheney@nvidia.com>
2025-02-20Fix gradient behavior for min() and max() functions at boundaries. When ↵Sai Praveen Bangaru
input values are equal, the gradient is split evenly between both inputs. (#6411) Co-authored-by: Yong He <yonghe@outlook.com>
2025-02-20Metal fix (#6413)kaizhangNV
Partially fix #6378 * Fix invalid access mode for texture_buffer * Fix texture view create issue in metal In newTextureView, levelRange should represent the mipmap level range, while sliceRange should represent the texture layer range for texture array. But the implement inverse those two wrongly.
2025-02-20Simplify implicit cast ctors for vector & matrix. (#6408)Yong He
* Simplify implicit cast ctors for vector & matrix. * Fix formatting. * Fix tests. * Fix Falcor test. * Mark __builtin_cast as internal.
2025-02-20HLSL: Add 'f' suffix to float literals in code generation (#6381)Mukund Keshava
* HLSL: Add 'f' suffix to float literals in code generation Fixes #6078 1) Previously, Slang would emit HLSL float literals without a suffix (e.g.,"1.5"), which caused DXC to interpret them as 64-bit doubles by default unless the -HV 202x flag was used. This could cause validation errors when these literals were used with intrinsics that only accept 32-bit floats (like ddx, ddy). This change modifies the HLSL emitter to explicitly add 'f' suffix to 32-bit float literals, ensuring they are correctly typed regardless of DXC's version or flags. For example: - "1.5" becomes "1.5f" - "(0.0 / 0.0)" becomes "(0.0f / 0.0f)" for NaN - "float4(1.0, 2.0, 3.0, 4.0)" becomes "float4(1.0f, 2.0f, 3.0f, 4.0f)" 2) Added a test case to verify the behavior with various float literal scenarios including basic literals, intrinsic calls, and vector construction. 3) Remove some tests that were marked as known failures * Add dxil test as suggested by jkwak-work
2025-02-19Support for dynamic array of textures access for Texture footprint. (#6392)Jay Kwak
* Support for dynamic array of textures access for Texture footprint. * Do a check for DXIL for dynamic array/footprint. * format code (#40) --------- Co-authored-by: jsmall-nvidia <jsmall@nvidia.com> Co-authored-by: slangbot <ellieh+slangbot@nvidia.com> Co-authored-by: Yong He <yonghe@outlook.com>
2025-02-19Force inline functions that takes InputPatch and OutputPatch (#6407)Jay Kwak
This commit inlines functions that takes InputPatch and OutputPatch as the function parameter. Co-authored-by: Yong He <yonghe@outlook.com>
2025-02-19Fix issue with `clamp`'s derivatives at the boundary. (#6403)Sai Praveen Bangaru
2025-02-19Show adapter info in slang-test (#6388)cheneym2
When -show-adapter-info is provided to slang-test, there is a subsequent pass over all available APIs to ask render-api to show which adapter will be used. > .\slang-test.exe -show-adapter-info Supported backends: fxc dxc glslang spirv-dis clang visualstudio genericcpp nvrtc llvm spirv-opt tint Check vk,vulkan: Supported Check dx12,d3d12: Supported Check dx11,d3d11: Supported Check cuda: Supported Check wgpu,webgpu: Supported Adapter Information for Available APIs: vk,vulkan: Using graphics adapter: NVIDIA RTX A3000 Laptop GPU dx12,d3d12: Using graphics adapter: NVIDIA RTX A3000 Laptop GPU dx11,d3d11: Using graphics adapter: Intel(R) UHD Graphics cpu: cuda: wgpu,webgpu: Using graphics adapter: default passed test: 'tests/autodiff/arithmetic-jvp.slang (dx11)' ... closes #5600 * format code --------- Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>
2025-02-19Fix zero size array handling in slangc (#6399)Mukund Keshava
* Fix zero size array handling in slangc Fixes #2890 1. Fix zero size array handling in slangc 2. Add new zero size array diagnostic test. * format code * fix review comments --------- Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com> Co-authored-by: Ellie Hermaszewska <ellieh@nvidia.com>
2025-02-19Add userAttribs to entryPoints in reflection JSON (#6366)David A Roberts
2025-02-18Cleanups for render-api (#6360)Anders Leino
* Clean up unused code * Clean up support interface * Rename the compile output requests to mark them DEPRECATED --------- Co-authored-by: Yong He <yonghe@outlook.com>
2025-02-18Fix and document static build (#6374)Ellie Hermaszewska
* Set static stbi flag for static builds * Add missing SYSTEM directive for external includes * Add instructions for linking statically against slang --------- Co-authored-by: Yong He <yonghe@outlook.com>
2025-02-18Add two DXC implementation for CoopVec (#6393)Jay Kwak
2025-02-18Add warning for ignored binding attributes on uniforms (#6373)Mukund Keshava
Fixes #4251 When binding attributes (like [[vk::binding]]) are specified on uniforms that get packed into the default constant buffer, these binding attributes are effectively ignored since the uniform will always be placed at descriptor set 0, binding 0. This can be confusing for users who expect their explicit bindings to take effect. This change adds a new warning (71) that informs users when their binding attributes on uniforms will be ignored, and suggests declaring the uniform inside a constant buffer to preserve the explicit binding. The warning helps users understand: 1. Why their binding attribute isn't having the expected effect 2. That the uniform is being packed into the default constant buffer 3. How to fix it by using a constant buffer declaration Added test case in tests/bugs/binding-attribute-ignored.slang to verify the warning behavior. Co-authored-by: Ellie Hermaszewska <ellieh@nvidia.com>
2025-02-18Add new zero size array test. (#6379)Mukund Keshava
Closes #2890 Co-authored-by: Ellie Hermaszewska <ellieh@nvidia.com>
2025-02-17slang: Fix empty VARARGS issue(#6332) (#6372)Mukund Keshava
2025-02-14Enable Hull shader test for SPIRV (#6348)Jay Kwak
* Enable Hull shader test for SPIRV
2025-02-14Fix metal issue (#6361)kaizhangNV
* Fix metal issue - implement waitForFences for metal backend - fix a bug that it misses clear the entryPoints when initializing RootShaderObject * format --------- Co-authored-by: Yong He <yonghe@outlook.com>
2025-02-14Don't remove in-use globals (#6359)cheneym2
The GLSL interface block implementation accidentally removed global variables which are still in use.
2025-02-13Add support for GLSL interface blocks (#6351)cheneym2
Adds support for input GLSL interface blocks. closes #5535 Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>
2025-02-13Add CMake build target vs2019-dev that enables IR break (#6354)Jay Kwak
This commit adds a CMake build target `vs2019-dev`. The suffix `-dev` enables the IR break ability. Co-authored-by: Yong He <yonghe@outlook.com>
2025-02-13Fix modifier parsing. (#6347)Yong He
* Fix modifier parsing. * Fix. * Fix. * Fix.
2025-02-13Disallow only resources in constant buffers in parameterblocks on metal (#6342)Ellie Hermaszewska
* Neaten metal parameter block checking * Disallow only resources in constant buffers in parameterblocks on metal closes https://github.com/shader-slang/slang/issues/6200 * add unit test for metal parameterblock cbuffer --------- Co-authored-by: Yong He <yonghe@outlook.com>
2025-02-13Reflection Fixes. (#6346)Yong He
* Fix 6317. * Fixes #6316. * Fix cmake preset. --------- Co-authored-by: Ellie Hermaszewska <ellieh@nvidia.com>
2025-02-13Migrate slang-test away from deprecated Slang API (#6343)Anders Leino
This helps to address #4760.
2025-02-12Allow LHS of `where` to be any type. (#6333)Yong He
* Allow LHS of `where` to be any type. * Register free-form extensions when loading precompiled module. * Fix test. * Fix. * Fix `as<IRType>`. * try fix precompiled module test.
2025-02-12Fix crash when handling uninitialized resource type (#6338)kaizhangNV
* Fix crash when handling uninitialized resource type close #6328. When declare a var with struct type, if the struct has a resource type field and it doesn't provide explicit constructor, because slang won't implicit construct such variable at declare site if user doesn't explicitly call the initializer list, we should report the resource type field uninitialized as an error to prevent future possible crash when legalize any use of such variable.
2025-02-11build core and glsl modules in the same slang-bootstrap invocation (#6341)Ellie Hermaszewska
Closes https://github.com/shader-slang/slang/issues/6339
2025-02-12Correct dependencies on core module source (#6340)Ellie Hermaszewska
* Publicly link core module sources Closes https://github.com/shader-slang/slang/issues/6037 * format * format * remove unnecessary conditional * comments * neaten * Only build embedded core modules when necessary * Make dependencies on core module source more precise * more precice dependencies on core module source * Neaten
2025-02-11Correct location of copy-headers target (#6327)Ellie Hermaszewska
2025-02-11Update build-llvm.ps1 (#6336)Yong He
Co-authored-by: Yong He <yongh@outlook.com>
2025-02-11Add checking for differentiability of the primal substitute function. (#6277)Sai Praveen Bangaru
Co-authored-by: Yong He <yonghe@outlook.com> Co-authored-by: Ellie Hermaszewska <ellieh@nvidia.com>
2025-02-11Add raypayload decoration to ray payload structs (#6164)Ellie Hermaszewska
* Add raypayload decoration to ray payload structs Closes https://github.com/shader-slang/slang/issues/6104 * Disable PAQs when compiling with DXC See https://github.com/shader-slang/slang/issues/3448
2025-02-11Emit missing atomic64 capability, fix int-typed builtin used in both vs and ↵Yong He
fs. (#6314) Co-authored-by: Ellie Hermaszewska <ellieh@nvidia.com>
2025-02-10Remove the docs/proposals directory (#6313)Anders Leino
* Remove the docs/proposals directory This directory will get added to the spec repository in the following PR: https://github.com/shader-slang/spec/pull/6 This closes #6155. * Remove entry from .github/CODEOWNERS file * Redirect some proposal references --------- Co-authored-by: Yong He <yonghe@outlook.com>
2025-02-10Add support for Metal subgroup/simd operations (#6247)Darren Wihandi
* initial work for metal subgroups * add glsl intrinsics * enable wave tests * enable glsl subgroup tests, glsl barrier fixes * minor fixes * fix incorrect test target * disable some glsl functional tests * disable failing glsl test --------- Co-authored-by: Yong He <yonghe@outlook.com>
2025-02-10Fix compilation on musl libc targets (#6334)Colin Marc
The musl libc replacement removed fopen64, fgetpos64, and other 64-bit variants because it's 64-bit only. However, it does have the following in its headers: #define fgetpos64 fgetpos Just importing <stdio.h> is enough to get slang compiling on musl systems like Alpine Linux. Fixes #6330. Co-authored-by: Yong He <yonghe@outlook.com>
2025-02-10Add WGSL to list of formats supporting multiple entry points (#6324)David A Roberts
* Add WGSL to list of formats supporting multiple entry points * Add a test for generating multiple WGSL entrypoints
2025-02-08Propagate the MemoryQualifierSetDecoration (#6315)Tony (Atanas) Zlatinski
Propagate the kIROp_MemoryQualifierSetDecoration memory decorations when converting from structures to flat global resources struct Tex { globallycoherent float4 bias = { 0.1, 0.3, 0.9, 1.5}; }; uniform Tex gTex; should have the following code generated in GLSL: coherent layout(rgba32f) layout(binding = 2) uniform image2D globalParams_gTex_tex_0; This closes #6079
2025-02-07Use and() and or() functions for logical-AND and OR (#6310)Jay Kwak
* Use and() and or() functions for logical-AND and OR With this commit, Slang will emit function calls to `and()` and `or()` for the logical-AND and logical-OR when the operands are non-scalar and the target profile is SM6.0 and above. This is required change from SM6.0. For WGSL, there is no operator overloadings of `&&` and `||` when the operands are non-scalar. Unlike HLSL, WGSL also don't have `and()` nor `or()`. Alternatively, we can use `select()`.
2025-02-07disable nanothread dependency (#6312)Simon Kallweit
2025-02-07slang-rhi cmake integration (#6261)Simon Kallweit
* update slang-rhi cmake integration * disable fetching slang * update slang-rhi
2025-02-07Add test for visibility in translation unit with multiple source files (#6306)Anders Leino
This closes #6221.
2025-02-06Mark slangpy as deprecated and remove from user-guide. (#6300)Yong He
2025-02-06Uncomment a previously failing test case (#6303)Anders Leino
This case now parses after the following PR was merged. https://github.com/shader-slang/slang/pull/6281 Co-authored-by: Yong He <yonghe@outlook.com>
2025-02-06Update a3-reference.md (#6309)KoT
Co-authored-by: Yong He <yonghe@outlook.com>
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