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2025-02-28Fix build error when SLANG_ENABLE_TESTS is set to OFF (#6420)Jay Kwak
* Fix build error when SLANG_ENABLE_TESTS is set to OFF When SLANG_ENABLE_TESTS is disabled but SLANG_ENABLE_GFX is enabled, cmake was failing. It turned out that gfx build target was trying to copy some of files to the directory where slang-test uses. When SLANG_ENABLE_TESTS is disabled, the directory information became unavailable, because slang-test target became unavailable. This commit makes the copying behavior conditional on SLANG_ENABLE_TESTS in the gfx build target. * format code (#42) Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com> --------- Co-authored-by: slangbot <ellieh+slangbot@nvidia.com> Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com> Co-authored-by: Ellie Hermaszewska <ellieh@nvidia.com>
2025-02-28Add Slang-specific intrinsics for integer pack/unpack (#6459)Darren Wihandi
* update hlsl meta * update test * use slang syntax in meta file * improve meta file * fix pack clamp u8 * remove builtin packed types, use typealias instead * fix wgsl pack clamp * fix formatting --------- Co-authored-by: Yong He <yonghe@outlook.com>
2025-02-28Resolve 'extern' types during type layout generation if possible (#6450)Ellie Hermaszewska
* Resolve 'extern' types during type layout generation if possible Closes https://github.com/shader-slang/slang/issues/5994 Closes https://github.com/shader-slang/slang/issues/6437 * format code --------- Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com> Co-authored-by: Yong He <yonghe@outlook.com>
2025-02-28Add WaveGetLane* support for Metal and WGSL (#6371)Darren Wihandi
* support WaveGetLane* for WGSL and Metal * update test and glsl support * address review comments and fix metal test * add missing pragma guard * update test * Revert "update test" This reverts commit f2b97e91c29de154190710580c343bd0764aedbb. * update failing glsl metal test and added new test * make hlsl and glsl outputs similar * update test * disable tests for Metal and cleanup * comment fix * add expected failures * correct expected failures list * remove expected failure * add tests to expected failure --------- Co-authored-by: Yong He <yonghe@outlook.com>
2025-02-28Prepare for render test api migration (#6498)Anders Leino
* Remove tests/compute/dump-repro The -load-repro option is no longer maintained. This helps to address issue #4760. * Rename ShaderCompilerUtil::Output::session to globalSession * Remove the load-repro codepath * Lifetime bugfix
2025-02-28Fix member lookup in left hand side of `where` clause. (#6490)Yong He
Co-authored-by: Ellie Hermaszewska <ellieh@nvidia.com>
2025-02-27Fix regression in float to bool conversion. (#6497)Yong He
2025-02-27Don't add multiple matrix layout options when creating a session (#6476)Anders Leino
The default matrix layout mode was applied in addition to any related options, and this caused the wrong matrix layout mode to be used. For example, tests/compute/column-major was failing when attempting to migrate to the new compilation API. This helps to address issue #4760
2025-02-27Fix template for deprecated docs. (#6496)Yong He
2025-02-27Fix doc. (#6495)Yong He
2025-02-27Fix doc. (#6494)Yong He
2025-02-27Fix doc build. (#6493)Yong He
2025-02-27Fix release CI. (#6492)Yong He
* Fix release CI. * fix. * format code --------- Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>
2025-02-27Fix CI settings. (#6491)Yong He
* fix ci. * fix. * format code --------- Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>
2025-02-27Fix a bug where Session::parseCommandLineArguments returns invalid data (#6461)Anders Leino
This helps to address issue #4760. Co-authored-by: Yong He <yonghe@outlook.com>
2025-02-27Remove adapter option from slang-test (#6475)Mukund Keshava
Fixes #6390 This commit removes the deprecated -adapter command-line option from slang-test. This change aligns with commit 015bde8d5a46f32979c00dbb1feb4b3d80729c44, which previously removed the adapter option from render-test and implemented the more AdapterLUID mechanism. Co-authored-by: Ellie Hermaszewska <ellieh@nvidia.com> Co-authored-by: Yong He <yonghe@outlook.com>
2025-02-27update slang-rhi (shader object refactor) (#6251)Simon Kallweit
* remove unused resource * define buffer data * add vs2022 build presets * update slang-rhi API usage * update slang-rhi --------- Co-authored-by: Yong He <yonghe@outlook.com>
2025-02-27Add inner texture type to reflection json (#6416)Devon
* Add inner texture type to reflection json * Add expected result of test * Adjust test expected results * Fix ci test result --------- Co-authored-by: Yong He <yonghe@outlook.com>
2025-02-27Map `SV_InstanceID` to `gl_InstanceIndex-gl_BaseInstance` (#6468)Yong He
* Map `SV_InstanceID` to `gl_InstanceIndex-gl_BaseInstance` * Fix ci.
2025-02-27Make capability diagnostic message more friendly. (#6474)Yong He
* Make capability diagnostic message more friendly. * Fix. * Fix. * Fix. * Fix test. * Update expected fail setting for aarch64/linux * Fix.
2025-02-27Allow `.member` syntax on vector and scalars. (#6424)Yong He
* Allow `.member` syntax on vector and scalars. * Fix. * fix. * Fix. * update comment. * Fix tests. * Fix warning. * Add more tests.
2025-02-27Document bug with global session teardown in user guide (#6479)Anders Leino
This closes #6344. Co-authored-by: Yong He <yonghe@outlook.com>
2025-02-27Fix overload resolution for `ModuleDeclarationDecl` (#6483)Sai Praveen Bangaru
* Fix overload resolution for `MemberExp`r's base expression Also fixed an issue where `ModuleDeclarationDecl` priority during overload resolution was inverted. * Made the fix slightly simpler.. * Update overload-resolve.slang
2025-02-27bump glslang spirv-header spirv-tools (#6478)Ellie Hermaszewska
Bump to latest public versions
2025-02-27Bump glslang to vulkan-tmp-1.4.309 (#6477)Ellie Hermaszewska
* hotfix slang-rhi * Fix missing include * external/glslang: 15.0.0-37-ga0995c49 -> vulkan-tmp-1.4.309 external/spirv-tools: v2024.4.rc2-44-g3364b982 -> v2024.4.rc2-48-gce37fd67"
2025-02-26Improve entry point lookup function documentation (#6451)Anders Leino
* Document that findEntryPointByName is not applicable if there is no [shader(...)] attribute * Update the user guide to mention findAndCheckEntryPoint for entry points without [shader(...)] attributes * format code --------- Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com> Co-authored-by: Yong He <yonghe@outlook.com>
2025-02-26Fix regression when using Atomic<T> in struct. (#6472)Yong He
2025-02-26Fix precompiledTargetModule tests (#6455)cheneym2
* Fix precompiledTargetModule tests Add SPIRV-Tool linker support to gfx unit tests and use the linker in precompileModule tests that use precompiled modules to reconstitute SPIRV shaders that were modularly compiled. Fix a Slang reference count bug in the precompile service. * Use sm_6_6 New DXC requires higher version for linkability. * Rename helper function, pass by reference * Link through slang-glslang * Add missing files * Fix metal * format code --------- Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com> Co-authored-by: Yong He <yonghe@outlook.com>
2025-02-26[SPIRV]: Emit missing storage class in atomic insts. (#6456)Yong He
2025-02-26expose value of constant integers in module reflection (#6367)Alexandre Bléron
* Expose value of constant integers in module reflection This commit adds `VariableReflection::getDefaultValueInt` to get the value of a variable if it is a compile-time constant integer. TODO: currently it works only if the initializer expression is an integer literal, references to other constant values are not handled. * Update VarDecl folded constant value during DeclBodyVisitor Constant folding for integer values is already done internally by _validateCircularVarDefinition, this just reuses the result. * Address review comments & formatting * Formatting --------- Co-authored-by: Yong He <yonghe@outlook.com>
2025-02-26Enable friendly-name option for SPIRV dump and validation (#6465)Jay Kwak
2025-02-25Fix a bug with hoisting 'IRVar' insts that are used outside the loop (#6446)Sai Praveen Bangaru
* Fix a bug with hoisting 'IRVar' insts that are used outside the loop - We introduce a 'CheckpointObject' inst and use that to split loop state insts into two pieces (one for within-loop uses and one for outside-loop uses. - This allows the two kinds of uses to be handled separately by the hoisting mechanism - CheckpointObject is then lowered to a no-op after hoisting is complete. * Update slang-ir-autodiff-primal-hoist.cpp * Update slang-ir-autodiff-primal-hoist.cpp
2025-02-25Fix `UseGraph::replace` (#6395)Sai Praveen Bangaru
* Fix `UseGraph::isTrivial()` test. * Fix. * Fix. * Refactor `UseGraph` and `UseChain` * Update slang-ir-autodiff-primal-hoist.cpp * Update all auto-diff locations that handle pointers to treat user pointers as regular values * Update test to use direct-SPIRV only --------- Co-authored-by: Yong He <yonghe@outlook.com>
2025-02-25Fix loading empty structs from structured buffers (#6439)Ellie Hermaszewska
Closes https://github.com/shader-slang/slang/issues/5751
2025-02-24Clone name hint decoration when emiting Undefined (#6415)Jay Kwak
* Clone name hint decoration when emiting Undefined When emiting "Undefined", we lost the information of where it was synthasized from. This prevents us from providing more helpful error messages. The issue was the when we handle "IRLoop", the inputs parameters to the Phi didn't clone the name hint decoration. This commit clones them when emiting "Undefined". * Adding more test case --------- Co-authored-by: Yong He <yonghe@outlook.com>
2025-02-24Legalize array size of SV_TessFactor and SV_InsideTessFactor (#6409)Jay Kwak
* Legalize array size of SV_TessFactor and SV_InsideTessFactor When targeting SPIR-V or GLSL, the type for SV_TessFactor must be float[4]; note that it is not a vector but an array. Similarly the type of SV_InsideTessFactor has to be an array of float[2]. When the user shader declare them as arrays smaller than the required size, Slang will legalize them to the required sizes. Note that it is not the user mistake to declare floar[3] when the hull mode is in "tri", as an example. The unused components are expected to be ignored. Note also that HLSL allows the type to be float[2|3|4] whereas GLSL and SPIR-V requires it to be always float[4]. * Change from "quad" domain mode to "tri" * Handle error case --------- Co-authored-by: Yong He <yonghe@outlook.com>
2025-02-24Fix TypeCheckingCache concurrency and candidate lifetime. (#6444)Yong He
* Fix TypeCheckingCache concurrency. * Fix.
2025-02-24Add implementation for 'uploadTextureData' in metal (#6443)kaizhangNV
Close issue: #6386. - Implement uploadTextureData in metal - Fix a bug in 'copyTextureToBuffer' in metal The last parameter for Metal::copyFromTexture is the 'destinationBytesPerImage', but previous implementation fill in the destination size which is wrong in 3-D texture.
2025-02-24Remove noise() from core library (#6421)cheneym2
noise() is currently marked "unsupported" in Slang documentation, and has also been unsupported in HLSL since SM 2.0 Until now, noise() was present only to prevent compilation errors, but not for any actual use since it returns 0.0 always. Closes #5775
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
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