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2025-06-30Allow a compiler warning on MacOS (#7561)Jay Kwak
This PR is to allow a compiler warning even when all warnings are requested to be treated as errors. The following pattern is very common in Slang code base: if (auto var = as<...>(...)) And when `var` is not used, the compiler prints a warning. Alternatively we can remove `auto var =` part but there are too many. Co-authored-by: Jay Kwak <jkwak@jkwak-mlt.client.nvidia.com>
2025-06-30Reset minimum cmake version to 3.22 (#7548)Gangzheng Tong
* Reset minimum cmake version to 3.22 * update slang-rhi
2025-06-19Enabling optix ci pipeline (#7311)Harsh Aggarwal (NVIDIA)
* Revert "Disable OptiX tests by default. (#1331)" This reverts commit e45f8c1f49855cebe90b6722324ec24146ff5a3d. * Enable optix submodule to build Add support for default entry points in compilation Implemented logic to check for defined entry points in the module when no explicit entry points are provided. If found, these entry points are added to the `specializedEntryPoints` list, with the assumption that no specialization is needed for them at this time. * Disable optix if cuda is not enabled * Add submodule OptixSDK path in search * Distinguish user-explicit vs auto-detected SLANG_ENABLE_OPTIX When SLANG_ENABLE_OPTIX is explicitly set by user and CUDA is not available, show SEND_ERROR to maintain strict validation. When OptiX is auto-detected (e.g., local submodule present) but CUDA unavailable, gracefully disable with STATUS message to allow builds to continue. This addresses review feedback to keep error for explicit requests while handling auto-detection gracefully. * Apply CMake formatting to SLANG_ENABLE_OPTIX validation logic * revert: slang-rhi changes as those are merged independently as in PR # slang-rhi#400
2025-06-12Improve exported build targets (#7382)manuelkNVDA
* Add the missing generator expression for install build targts Fixes #7351. * Formatted --------- Co-authored-by: Harsh Aggarwal (NVIDIA) <haaggarwal@nvidia.com>
2025-06-06Update slang-rhi (#7303)Simon Kallweit
* update slang-rhi * adapt to new slang-rhi API * enable slang-rhi agility sdk * fix handling empty list * disable failing slang-rhi tests * format code * fix slang-rhi-tests ci step * skip running slang-rhi-tests --------- Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>
2025-05-06Update C++ standard to C++20 (#6980)Ellie Hermaszewska
* Correct incorrect enum usage on metal * Update C++ standard to C++20 Closes https://github.com/shader-slang/slang/issues/6945 * use bit_cast
2025-04-24Stop using `chmod` on Windows host to fix build targeting Android (#6865)James0124
Co-authored-by: Yong He <yonghe@outlook.com>
2025-04-19Fix compiler warning on Windows about -build-id (#6857)Jay Kwak
This PR fixes the compiler warning like following, lld-link: warning: ignoring unknown argument '--no-undefined' lld-link: warning: ignoring unknown argument '--build-id', did you mean '-build-id' chatGPT said that those options are for ELF and not for Windows: These warnings happen because the Clang toolchain on Windows is invoking lld-link, which is the LLVM linker frontend for link.exe compatibility (i.e., it acts like the MSVC linker). The arguments --no-undefined and --build-id are ELF-specific flags, which are valid when targeting Linux, but not valid in the PE/COFF (Windows) environment. Here's a breakdown: ⚠️ Warning messages explained: lld-link: warning: ignoring unknown argument '--no-undefined' → This is a Linux/ELF flag. On Windows, this has no effect and is unknown. lld-link: warning: ignoring unknown argument '--build-id', did you mean '-build-id' → Again, --build-id is for ELF binaries to include a unique build ID. Not valid for Windows targets.
2025-04-17Fix compiler warning with clang 18.1.8 on windows (#6843)Jay Kwak
* Fix compiler warning with clang 18.1.8 on windows
2025-04-07Use GITHUB_TOKEN for fetching prebuilt (#6712)Gangzheng Tong
* Use GITHUB_TOKEN for fetching prebuilt This PR extends Commit c6b702c to use GITHUB_TOKEN if set for fetching prebuilt binaries. This allows webgpu-dawn and slang-tint to be downloaded for certain IPs where the github API rate is limited. Fixes #6689 * Don't ignore download failure if github token is provided * Update readme for getting github access token * format code * combine cmake_parse_arguments calls * format code --------- Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com> Co-authored-by: Jay Kwak <82421531+jkwak-work@users.noreply.github.com> Co-authored-by: Ellie Hermaszewska <ellieh@nvidia.com>
2025-03-14Fix: Respect user-defined output directory settings for libraries (#6604)Harsh Aggarwal (NVIDIA)
* Fix: Respect user-defined output directory settings for libraries Modified SlangTarget.cmake to properly respect CMAKE_LIBRARY_OUTPUT_DIRECTORY, CMAKE_RUNTIME_OUTPUT_DIRECTORY and CMAKE_ARCHIVE_OUTPUT_DIRECTORY variables when they are explicitly set by the user. This ensures libraries and executables are placed in the directories specified by the user, including handling Multi-Config generators like Visual Studio, Xcode, and Ninja Multi-Config. Fixes #5896: Shared library build output location ignores CMAKE setting * format code --------- Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.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>
2025-01-24Fix static build and install (#6158)Dario Mylonopoulos
* Add SLANG_ENABLE_RELEASE_LTO cmake option * Fix cmake static build * Disable install SlangTargets to avoid static build failing
2025-01-14Fix documentation on DescriptorHandle. (#6062)Yong He
* Fix documentation on DescriptorHandle. * Fix. * format code --------- Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>
2024-12-13Add SLANG_ENABLE_DXIL (#5853)Ellie Hermaszewska
2024-12-13Set default hidden visibility for all source on gcc (#5850)Ellie Hermaszewska
2024-12-12Fix prebuilt dependencies filenames on non-windows platforms (#5848)Ellie Hermaszewska
2024-12-06Emit debug info for Release builds (#5783)Ellie Hermaszewska
* Remove unnecessary warnings on windows * Correctly set debug flags on gcc * Emit debug info for Release builds * Perform LTO for relwithdebinfo builds * Release from release builds not relwithdebinfo
2024-12-06Split debug info for all targets (#5732)Ellie Hermaszewska
* Split debug info for all targets Work towards https://github.com/shader-slang/slang/issues/5724 * release separate debug info Closes https://github.com/shader-slang/slang/issues/5724 * Add split debug info support for MacOS * Add SLANG_ENABLE_SPLIT_DEBUG_INFO option * Sign and package debug info on MacOS * Set --build-id where available * Correct debug info installing * Keep cpack macos signing workaround * Neaten cmake * Disable sccache if building split debug info on Windows * Only repack necessary files on MacOS releases
2024-12-05Remove duplicate call to install() for libslang (#5767)Ellie Hermaszewska
Closes https://github.com/shader-slang/slang/issues/5764 Also mention other installed targets in cmake config
2024-12-03Add SlangConfig.cmake with slang build targets (#5674)ov-l
* Modify package config * Apply formatting. * Make sure build works for Emscripten * Add documentation on install target. --------- Co-authored-by: obhi-d <obi.de.online@gmail.com>
2024-12-03Install PDB files when available (#5665)Ellie Hermaszewska
* Install PDB files when available Closes https://github.com/shader-slang/slang/issues/5562 * format code * format code --------- Co-authored-by: Jay Kwak <82421531+jkwak-work@users.noreply.github.com> Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>
2024-11-30fetch and extract prebuilt deps lazily (#5707)Ellie Hermaszewska
Closes https://github.com/shader-slang/slang/issues/5706 and https://github.com/shader-slang/slang/issues/5657
2024-11-26Enable Link-Time-Code-Generation for Release builds (#5678)Jay Kwak
This commit enables Link Time Code Generation, or LTCG for short, for the release builds. Because "incremental" build is enabled, this ends up using "/LTCG:incremental" rather than the full "/LTCG". It is still expected to more performant than without any "/LTCG" at all. In order to use the full LTCG, we will need to give up the incremental build option for the Release build. We will need to decide if we wants to do it later.
2024-11-13Correct include dir for libslang (#5539)Ellie Hermaszewska
This stops adding the repo root to the include path for anything linking with slang. This enabled a bunch of convenient includes, but might lead to confusing behavior for anyone including slang. Not to mention differences including it from an install vs source. Co-authored-by: Yong He <yonghe@outlook.com>
2024-11-08Fix EHa flag compiler filtering (#5524)cheneym2
The previous attempt to enable Structured Exception Handling in (only) MSVC using the /EHa compiler flag caused trouble with flags defined with Cmake Generator Expressions. These expressions are not fully resolved, and they fail validation checks in check_cxx_compiler_flag(). The previous attempt at applying /EHa to only MVSC involved refactoring a direct call to target_compile_options() with a call to the Slang helper function add_supported_cxx_flags() where an additional MSVC filter was introduced, but the helper also calls check_cxx_compiler_flag() to see if flags are supported. It was okay for /EHa, but not some other flags that ended up getting newly validated. The above issue is fixed by re-implementing the change that added /EHa to only MSVC. This change goes back to adding compiler flags without the helper function with its extra validation, instead using an additional cmake generator expression to apply /EHa only to MSVC.
2024-11-05Catch all exceptions in render-test (#5495)cheneym2
Catch all exceptions in render-test In MSVC, the /EHsc flag is used by default, it causes only C++ (synchronous) exceptions to be caught by try/catch blocks. The /EHa flag can instead be used to catch both synchronous C++ exceptions as well as structured asynchronous exceptions such as those seen in segfaults or other typical bugs. Using /EHa allows render-test to not crash completely if there is a buggy graphics driver in the system. Issue 5275
2024-10-29Put debug symbols in releases (#5370)Ellie Hermaszewska
2024-10-29format cmake files (#5406)Ellie Hermaszewska
* format cmake files * format code --------- Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>
2024-10-24declutter top level CMakeLists.txt (#5391)Ellie Hermaszewska
* Split examples cmake desc * declutter top level CMakeLists.txt * fail if building tests without gfx * Move llvm fetching to another cmake file * Further split CMakeLists.txt * Neaten llvm fetching * Remove last premake remnant * correct cross builds * Neaten * Neaten project organization in vs
2024-10-18Make slang-llvm fetching and failure more robust (#5346)Ellie Hermaszewska
* Make slang-llvm fetching and failure more robust Improve error reporting when things go wrong. Fall back by default to a non-llvm build Closes https://github.com/shader-slang/slang/issues/5247 Tested sensible behavior with: - `FETCH_BINARY_IF_POSSIBLE`, valid tag - No errors or warnings, successful build with llvm - `FETCH_BINARY_IF_POSSIBLE`, no valid tag - Warning message, successful llvm build with slang-llvm from latest release - `FETCH_BINARY_IF_POSSIBLE`, no valid tag, bad `SLANG_SLANG_LLVM_BINARY_URL` specified - Warning message, successful no-llvm build - `FETCH_BINARY_IF_POSSIBLE`, no valid tag, unable to fetch release information - Warning message, successful no-llvm build - `FETCH_BINARY`, valid tag - No errors or warnings, successful build with llvm - `FETCH_BINARY`, no valid tag - Warning message, successful llvm build with slang-llvm from latest release - `FETCH_BINARY`, no valid tag, bad `SLANG_SLANG_LLVM_BINARY_URL` specified - Error, explaining that we couldn't fetch it - `FETCH_BINARY`, no valid tag, unable to fetch release info - Error, explaining that we couldn't fetch it * Allow downloading from a local file --------- Co-authored-by: Yong He <yonghe@outlook.com>
2024-10-15Enable WebGPU tests in CI (#5239)Anders Leino
2024-10-14Fix release build failure (#5285)Ellie Hermaszewska
* Fix race condition for building stdlib headers Fixes https://github.com/shader-slang/slang/issues/5270 * Generalize slangtarget install options * Install slang-without-embedded-stdlib with generators --------- Co-authored-by: Yong He <yonghe@outlook.com>
2024-10-11Restrict stdlib embed macros to single source file (#5251)Ellie Hermaszewska
* Restrict stdlib embed macros to single source file * Build slang-without-embedded-stdlib with the same target type as libslang To avoid building everything twice
2024-10-04Allow building using external dependencies (#5076)Tobias Frisch
* Add options to prevent usage of own submodules Signed-off-by: Jacki <jacki@thejackimonster.de> * Allow using external unordered dense headers Signed-off-by: Jacki <jacki@thejackimonster.de> * Link system wide installed unordered dense Signed-off-by: Jacki <jacki@thejackimonster.de> * Allow external header usage for lz4 and spirv Signed-off-by: Jacki <jacki@thejackimonster.de> * Add more options to disable targets Signed-off-by: Jacki <jacki@thejackimonster.de> * Add option to provide explizit path for spirv headers and remove earlier options that break the build process Signed-off-by: Jacki <jacki@thejackimonster.de> * Rename options to use common prefix Signed-off-by: Jacki <jacki@thejackimonster.de> * Fix indentation for the cmake changes Signed-off-by: Jacki <jacki@thejackimonster.de> * Add advanced_option function for cmake * Normalize includes between system and submodule dependencies Fix any before-accidentally-working problems * Add option for enabling/disabling slang-rhi Signed-off-by: Jacki <jacki@thejackimonster.de> * Pass correct include path for cpu tests * Correct include path --------- Signed-off-by: Jacki <jacki@thejackimonster.de> Co-authored-by: Ellie Hermaszewska <ellieh@nvidia.com>
2024-09-19Use GITHUB_TOKEN if set (#5070)Jay Kwak
* Use GITHUB_TOKEN if set We have been having an error from Github saying that API rate limit exceeded for IP. It hits the limit more often if your public IP is shared by many other collegues. {"message":"API rate limit exceeded for 216.228.112.22. (But here's the good news: Authenticated requests get a higher rate limit. Check out the documentation for more details.)","documentation_url":"https://docs.github.com/rest/overview/resources-in-the-rest-api#rate-limiting"} The suggested solution from GitHub is to use gh.exe tool with "auth login" arguments. It will store a token and allow us to use API more than the limit set for IP without token. However, our cmake build doesn't use gh.exe and API is called via REST. This commit adds an extra header to the HTTP request with the infomration of the github token if the value is. Usage: cmake.exe --preset vs2019 -DSLANG_GITHUB_TOKEN=your_token_here * Adding a warning message to use LANG_GITHUB_TOKEN --------- Co-authored-by: Yong He <yonghe@outlook.com>
2024-08-21Dont require llvm for building generators (#4895)Ellie Hermaszewska
* Dont require llvm for building generators * Fetch slang-llvm.so from correct release (#4847) * Fetch slang-llvm.so from correct release Closes https://github.com/shader-slang/slang/issues/4648 Should close https://github.com/shader-slang/slang/issues/4812 * Update docs * Correct documentation on cmake option * Neaten cmake script * Fix fetching on windows --------- Co-authored-by: Yong He <yonghe@outlook.com> * Be a bit more careful dealing with release list fetching failure * clarify error messages --------- Co-authored-by: Yong He <yonghe@outlook.com>
2024-08-20Revert "Fetch slang-llvm.so from correct release (#4847)" (#4893)Yong He
This reverts commit 579d59c761cb0460701e0e820eb066275fe357b3.
2024-08-20Fetch slang-llvm.so from correct release (#4847)Ellie Hermaszewska
* Fetch slang-llvm.so from correct release Closes https://github.com/shader-slang/slang/issues/4648 Should close https://github.com/shader-slang/slang/issues/4812 * Update docs * Correct documentation on cmake option * Neaten cmake script * Fix fetching on windows --------- Co-authored-by: Yong He <yonghe@outlook.com>
2024-07-18Reduce duplication in slang lib builds (#4651)Ellie Hermaszewska
* spelling * Reduce duplication in slang lib builds Closes (as much as possible) https://github.com/shader-slang/slang/issues/4615 The only case where we could actually make a difference would be an embedded stdlib and static slang, which isn't a configuration anyone actually uses. Nonetheless, clean up this bit
2024-07-18Remove generated file from source and build at build time (#4649)Ellie Hermaszewska
* Remove generated file from source and build at build time * comments
2024-07-11More precise handing of option dependencies (#4612)Ellie Hermaszewska
2024-07-11Cope with failed version parsing (#4609)Ellie Hermaszewska
* Cope with failed version parsing * Better version parsing * populate slang-tag-version with cmake * Neaten cmake
2024-07-10Make ci scripts more robust (#4608)Ellie Hermaszewska
* Remove syntax error in release script * Make ci scripts more robust * Remove lib copying * Add bin directory to RPATH
2024-07-10Specialize address space during spirv legalization. (#4600)Yong He
* Specialize address space during spirv legalization. * Fix. * Fix building doc. * Fix cmake. * Update assert.
2024-05-27[gfx] metal backend skeleton (#4223)Simon Kallweit
* add metal-cpp submodule * add metal-cpp cmake target * gfx metal backend skeleton * add premake support * add foundation framework * add metal-cpp include to premake * update vs project file --------- Co-authored-by: Simon Kallweit <skallweit@nvidia.com> Co-authored-by: Jay Kwak <82421531+jkwak-work@users.noreply.github.com>
2024-03-13CMake fixes for MacOS (#3761)Craig Kolb
Co-authored-by: Yong He <yonghe@outlook.com>
2024-02-15cmake: option to build a static library version of slang (#3578)Lukas Lipp
* cmake: slang lib type setting * cmake: change name for slang lib type setting --------- Co-authored-by: Yong He <yonghe@outlook.com>
2023-12-18macos/vulkan support (#3418)skallweitNV
2023-12-08WIP: CMake (#3326)Ellie Hermaszewska
* More robust input and output selection in generator tools * Add cmake build system * Get slang-test running with cmake * Bump lz4 and miniz dependencies * Make cmake build more declarative * Correct preprocessor logic in slang.h * Add cuda test to compute/simple * Remove empty cmake files * output placement for cmake, and commenting * Correct include paths in spirv-embed-generator * Format cmake with gersemi * Make cmake build clerer * Neaten header generation Also work around https://gitlab.kitware.com/cmake/cmake/-/issues/18399 by introducing correct_generated_properties to set the GENERATED flag in the correct scope * remove unused files * use 3.20 to set GENERATOR property properly * spelling * more flexible linker arg setting * replace slang-static with obj collection * Set rpath and linker path correctly * neaten generated file generation * tests working with cmake build * fix premake5 build * comment and neaten cmake * remove unnecessary dependency * Build aftermath example only when aftermath is enabled * Add slang-llvm and other dependencies * Put modules alongside binaries * Find slang-glslang correctly * Better option handling * comments * add llvm build test * Better option handling * cmake wobble * use UNICODE and _UNICODE * remove other workflows * use ccache * neaten * limit parallel for llvm build * use ninja for build * Windows and Darwin slang-llvm builds * cache key * verbose llvm build * cl on windows * sccache and cl.exe * use cl.exe * Correct package detection * less verbosity * Simplify miniz inclusion * fix build with sccache * Neaten llvm building * neaten * Neaten slang-llvm fetching * more surgical workarounds * Add ci action * Get version from git * better variable naming * add missing include * clean up after premake in cmake * more docs on cmake build * ci wobble * add imgui target * more selective source * do not download swiftshader * Some missing dependencies * only build llvm on dispatch * Disable /Zi in CI where sccache is present * simplify * set PIC for miniz * set policies before project * reengage workaround * more runs on ci * Add cmake presets * Add cpack * move iterator debug level to preset * Correct lib flag * simplify action * Neaten cmake init * Add todo * Add simple test wrapper * Add tests to workflow presets * rename packing preset * Correctly set definitions * docs * correct preset names * Make slang-test depend on test-server/test-process * neaten * use workflow in actions * install docs * Correct module install dir * debug dist workflow * Install headers * neaten header globbing * Neaten dependency handling * make lib and bin variables * Do not set compiler for vs builds, unnecessary * docs * allow setting explicit source for target * maintain archive subdir * cmake docs * install headers * place targets into folders * cmake docs * nest external projects in folder * remove name clash * Neater external packages * meta targets in folder structure * cleaner slang-glslang dll * Add missing static directive to slang-no-embedded-stdlib * more robust module copying * make slang-test the startup project * folder tweak * Make FETCH_BINARY the default on all platforms * Set DEBUG_DIR * add natvis files to source * skip spirv tests * remove test step from debug dist * Add build to .gitignore * redo warnings to be more like premake * Update imgui * clean more premake files * Disable PCH for glslang, gcc throws a warning * Add /MP for msvc builds * warning wobble * Add script to build llvm * Add slang-llvm and generators components * Build slang-llvm in ci * comments * fetch llvm with git * better abi approximation for cache * better sccache key * formatting * Correct logic around disabling problematic debug info for ccache * exclude gcc and clang from windows ci * Make dist workflows use system llvm * naming * restore normal dist builds * formatting * run tests in ci * Correct slang-llvm url setting * Rely on the system to find the test tool library * actions matrix wiggle * cope with OSX ancient bash * Correct compilers on windows * more ci debugging * Correct rpath handling on OSX * neaten * correct path to slang-llvm * Correct rpath separator on osx * Find slang-llvm correctly * smoke tests only on osx * ci wobble * Give MacOS module a dylib suffix * get swiftshader correctly * cope with bsd cp * remove debug output * full tests on osx * ci wobble * Add some vk tests to expected failures * simplify ci * ci wobble * exclude dx12 tests from github ci * remove cmake code for building llvm * warnings * warnings as errors for cl * spirv-tools in path * add aarch64 ci build * Add SLANG_GENERATORS_PATH option for prebuilt generators * neaten * Correct generator target name * remove yaml anchors because github actions does not support them * Demote CMake in docs Also add info on cross compiling * Restore premake CI * use minimal ci for cmake * Write miniz_export for premake build and .gitignore it * Mention build config tool options in docs * Remove redefined macro for miniz * regenerate vs project
generated by cgit v1.2.3 (git 2.39.1) at 2026-06-04 07:25:43 +0000