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* Handle SPIR-V aliases (#8704)Jay Kwak2025-10-14
| | | Fixes https://github.com/shader-slang/slang/issues/8703
* Enable ccache for self-hosted runner (#8345)Gangzheng Tong2025-09-03
| | | | | | | | Related to https://github.com/shader-slang/slang/issues/6728 --------- Co-authored-by: slangbot <ellieh+slangbot@nvidia.com> Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>
* Fix unused space discovery for bindless heap. (#8075)Yong He2025-08-06
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* Handle debug-layer messages in a separate channel (#7988)Jay Kwak2025-07-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Handle debug-layer messages in a separate channel The Problem (Issue #7343) The issue was that Vulkan Validation Layer error messages were being mixed into regular test output, causing potential false positives or negatives. When using -enable-debug-layers true, validation messages would appear in the same output stream as test results, potentially matching //CHECK: patterns incorrectly. Example Problem: - Test expects: //CHECK: 1 - Validation layer prints: VALIDATION ERROR: 1 invalid buffer binding - Test incorrectly matches the "1" in the error message instead of the actual output Slang Test Communication Architecture Execution Modes Slang has 3 different execution modes controlled by SpawnType: enum class SpawnType { UseSharedLibrary, // In-process execution UseTestServer, // Out-of-process via persistent server UseFullyIsolatedTestServer, // Out-of-process via isolated server UseExe // Direct executable spawn } 1. In-Process Mode (UseSharedLibrary) ┌─────────────────────────────────────────┐ │ slang-test │ │ ┌─────────────┐ ┌─────────────────┐ │ │ │render-test │ │gfx-unit-test │ │ │ │unit-test │ │slangc library │ │ │ └─────────────┘ └─────────────────┘ │ │ │ │ │ │ └───► StdWriters ◄──┘ │ │ (shared) │ └─────────────────────────────────────────┘ - Communication: Direct function calls, shared memory - Debug callbacks: Single callback instance in StdWriters - Used when: Default mode for most tests 2. Out-of-Process Mode (UseTestServer) ┌──────────────────┐ JSON-RPC ┌──────────────────┐ │ slang-test │◄──over pipes────┤ test-server.exe │ │ │ │ │ │ ┌─────────────┐ │ │ ┌─────────────┐ │ │ │StdWriters │ │ │ │render-test │ │ │ │+debug │ │ │ │gfx-unit-test│ │ │ │callback │ │ │ │+debug │ │ │ └─────────────┘ │ │ │callback │ │ └──────────────────┘ │ └─────────────┘ │ └──────────────────┘ - Communication: JSON-RPC over stdin/stdout pipes - Debug callbacks: Separate instances in each process - Used when: CI/CD, multi-threaded testing, crash isolation 3. Direct Executable Mode (UseExe) ┌──────────────────┐ pipes ┌──────────────────┐ │ slang-test │◄───────────────┤ slangc.exe │ │ │ │ other tools │ └──────────────────┘ └──────────────────┘ - Communication: Standard process pipes (stdout/stderr) - Debug callbacks: None (external executables) - Used when: Testing external tools Communication Mechanisms Deep Dive JSON-RPC Protocol Over Pipes The test-server.exe communicates with slang-test using JSON-RPC over stdin/stdout pipes: // Parent process (slang-test) creates child with pipes Process* testServerProcess = /* spawn test-server.exe */; // JSONRPCConnection wraps the pipe communication JSONRPCConnection connection; connection.initWithStdStreams(); // Uses stdin/stdout pipes // Send RPC call TestServerProtocol::ExecutionResult result; connection.sendCall("executeTool", &args, &result); Key Point: The pipes carry structured JSON messages, not raw stdout/stderr. This is what enables clean separation of different data channels. Protocol Structure Your changes extend the ExecutionResult protocol: struct ExecutionResult { String stdOut; // Regular program output String stdError; // Error messages String debugLayer; // NEW: Debug/validation messages int32_t result; int32_t returnCode; }; Your Debug Layer Solution The Challenge Memory pointers cannot cross process boundaries. A debugCallback pointer in the parent process is meaningless in the child process. The Solution: String-Based Serialization You solved this by using string capture and serialization: 1. Debug Callback Interface (slang-std-writers.h) class IDebugCallback { virtual void handleMessage( DebugMessageType type, DebugMessageSource source, const char* message) = 0; }; 2. String-Capturing Implementation (slang-support.h) class CoreDebugCallback : public Slang::IDebugCallback { StringBuilder m_buf; // Captures messages as strings void handleMessage(DebugMessageType type, DebugMessageSource source, const char* message) { if (type == DebugMessageType::Error) { m_buf << message << '\n'; // Serialize to string } } String getString() { return m_buf.toString(); } // Extract accumulated messages }; 3. Bridge Between RHI and Core (slang-support.h) class CoreToRHIDebugBridge : public rhi::IDebugCallback { Slang::IDebugCallback* m_coreCallback; void handleMessage(rhi::DebugMessageType type, rhi::DebugMessageSource source, const char* message) { // Convert RHI types to core types and forward m_coreCallback->handleMessage(convertType(type), convertSource(source), message); } }; Data Flow: Debug Messages End-to-End In-Process Mode Flow GPU Driver → RHI Debug Callback → Core Debug Callback → String Buffer → Test Output Out-of-Process Mode Flow Child Process: GPU Driver → RHI Debug Callback → Core Debug Callback → String Buffer ↓ Parent Process: JSON-RPC Serialization Test Output ← String Processing ← ExecutionResult.debugLayer ←┘ Step-by-Step Example 1. Test Execution Starts // In test-server process CoreDebugCallback debugCallback; CoreToRHIDebugBridge bridge; bridge.setCoreCallback(&debugCallback); // Set up graphics device with debug layers deviceDesc.debugCallback = &bridge; 2. Graphics API Call Triggers Validation Error // Inside Vulkan driver (external code) // Validation layer detects error and calls our callback bridge.handleMessage(RHI_ERROR, RHI_LAYER, "Invalid buffer binding"); 3. Message Capture // In CoreDebugCallback::handleMessage m_buf << "Invalid buffer binding\n"; // Stored in string buffer 4. Test Completion & Serialization // Back in test-server TestServerProtocol::ExecutionResult result; result.debugLayer = debugCallback.getString(); // "Invalid buffer binding\n" result.stdOut = "1"; // Regular test output // Send via JSON-RPC connection.sendResult(&result); 5. Parent Process Receives & Separates Output // In slang-test process String output = buildTestOutput(result); // Results in clean separation: // standard output = { // 1 // } // debug layer = { // Invalid buffer binding // } Why This Solution Works 1. Process Isolation: Each process has its own callback objects, no shared pointers 2. String Serialization: Debug messages converted to strings that can cross process boundaries 3. Protocol Extension: Uses existing JSON-RPC infrastructure, just adds new field 4. Clean Separation: Debug messages never mix with stdout/stderr 5. Backward Compatibility: Existing tests unaffected, debug layer field optional Key Benefits - Eliminates False Positives: Debug messages can't interfere with //CHECK: patterns - Better Debugging: Debug messages clearly separated and labeled - Robust Architecture: Works across all execution modes - Minimal Changes: Leverages existing communication infrastructure This elegant solution transforms a fundamental cross-process communication challenge into a simple string serialization problem, using the existing test server architecture to cleanly separate validation layer messages from test results. * Cover the missing slang-test execution path * format code (#82) 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>
* Invoke `clang++` on C++ code instead of `clang` (#7958)Sam Estep2025-07-29
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* Organize code better by splitting some big files (#7890)Theresa Foley2025-07-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | * Organize code better by splitting some big files The basic change here is that the majority of the declarations in `slang-compiler.h` have been split out into a set of smaller and more focused files. As a result, the implement of those declarations have been moved from `slang-compiler.cpp` and `slang.cpp` over to those new files when the proper home for code is obvious. I have tried as much as possible to *not* make any edits to the code along the way, and just copy-paste declarations from one place to another as-is. The exceptions I am aware of are: * In some cases a function that used to be file-scope `static` was used by code that landed in two or more different `.cpp` files. In these cases, I changed the function to be non-`static` (removing the `_` prefix from its name, if it had one, per our naming conventions), and put a declaration for the function into the most appropriate header I could identify. * I added a few comments in places where I saw ugly or unfortunate things in the code I was moving, and wanted to tag them with `TODO`s so we can hopefully get to them in the fullness of time. * I added top-level comments to each of the new `.h` files that was introduced to try to explain the logic for what goes into that file. * In cases where one of the new header files mostly existed to declare a single type, I sometimes added more detail to the doc comment on that type, to better explain the type and its role in the compiler (this is text that otherwise might have gone into the comment at the top leve lof the file, but I figured that the doc comment would have higher discoverability). I expect that the most contentious choice here is that the `Session` class lands in `slang-global-session.h` while `slang-session.h` holds the `Linkage` class. The names used in this change are consistent with how the relevant concepts in the public Slang API are named, and are consistent with how we *intend* to rename the classes themselves in time. * format code * fixup --------- Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>
* Merge NamePool and RootNamePool into a single type (#7797)Copilot2025-07-17
| | | | | | | | | | | | | | | | | | | | | | | * Initial plan * Merge NamePool and RootNamePool into single NamePool class Co-authored-by: csyonghe <2652293+csyonghe@users.noreply.github.com> * Remove unnecessary comment from slang-fiddle-scrape.cpp Co-authored-by: Theresa Foley <tangent-vector@users.noreply.github.com> * Address review feedback: initialize namePool to nullptr and remove unnecessary comments Co-authored-by: Theresa Foley <tangent-vector@users.noreply.github.com> --------- Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com> Co-authored-by: csyonghe <2652293+csyonghe@users.noreply.github.com> Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com> Co-authored-by: Theresa Foley <tangent-vector@users.noreply.github.com> Co-authored-by: Yong He <yonghe@outlook.com>
* Misc language server improvements. (#7569)Yong He2025-07-01
| | | | | | | | | | | | | * Misc language server improvements. * Fix. * Fix decl path printing for existential lookup. * More existential decl path fix. * Polish. * Fix test.
* Add arguments for controlling floating point denormal mode (#7461)aidanfnv2025-07-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Implement -fp-denorm-mode slangc arg * Split fp-denorm-mode into 3 args for fp16/32/64 * Remove redundant option categories * Use emitInst for multiple of the same OpExecutionMode * Fix formatting * Remove -denorm any * Re-add option categories * emitinst for ftz * Use enums for type text * Remove extra categories again * Add tests for denorm mode * Move denorm mode to post linking * format code (#8) Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com> * regenerate command line reference (#9) Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com> * Clean up tests * Fix option text * format code (#10) Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com> * Add tests for "any" mode * Return "any" enum if option not set * Simplify emission logic * Add support for generic entrypoints * Move denorm modes to end of CompilerOptionName enum * format code (#11) Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com> * Move new enum members to before CountOf * Add not checks to tests, fix generic test, add functionality tests * Rename denorm to fpDenormal * Clean up functional test * Rename denorm test dir * Fix formatting, regenerate cmdline ref * Fold simple tests into functional tests, add more dxil checks * Remove no-op DX tests, make tests more consistent * Disable VK functionality tests that will fail on the CI configs * Fix formatting * Add comments to disabled tests explaining why --------- Co-authored-by: slangbot <ellieh+slangbot@nvidia.com> Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>
* Enabling optix ci pipeline (#7311)Harsh Aggarwal (NVIDIA)2025-06-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 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
* Fix cuda_fp16 header issue (#7476)Mukund Keshava2025-06-19
| | | | | | | | | | | | * Fix cuda_fp16 header issue This fixes the header include issue. However, it does not add a diagnostic. That will be added in a separate PR. * format code --------- Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>
* Fix out of bound buffer access in the preprocessor. (#7475)Yong He2025-06-18
| | | | | | | | | * Fix out of bound buffer access in the preprocessor. * Fix test regression. --------- Co-authored-by: Jay Kwak <82421531+jkwak-work@users.noreply.github.com>
* LanguageServer: Enhance auto completion for override. (#7465)Yong He2025-06-17
| | | | | * Add additional completion keywords. * LanguageServer: Enhance auto completion for `override`.
* Bump the min shader model version for CUDA 12.8+ (#7415)Jay Kwak2025-06-14
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* Fix SLANG_USE_SYSTEM_SPIRV_HEADERS (#7371)Emil Imbert Villumsen2025-06-13
| | | | | | | | | | | | | | | | | | * Use aliased SPIRV-Headers::SPIRV-Headers to also work with an installed SPIRV-Headers SPIRV-Headers standalone is only defined when using sources directly. When consuming an installed SPIRV-Headers via find_package, the full SPIRV-Headers::SPIRV-Headers must be used. The full syntax is supported by both source and installed builds. * Fix SLANG_USE_SYSTEM_SPIRV_HEADERS - Use find_package to bring in SPIRV-Headers cmake targets - Set SPIRV-Headers_SOURCE_DIR as a workaround when including spirv-tools - Query cmake for SLANG_SPIRV_HEADERS_INCLUDE_DIR location, supporting default, SLANG_OVERRIDE_SPIRV_HEADERS_PATH and find_package builds. - Cleanup unnecessary SPIRV_HEADER_DIR (unconditionally overwritten in spirv-tools)
* Add command line option for separate debug info (#7178)jarcherNV2025-06-06
| | | | | | | | | | | | | * Add command line option for separate debug info Add command line arg -separate-debug-info which, if provided, produces both a .spv and a .dbg.spv file. The .dbg.spv file contains full debug info and the .spv file has all debug info stripped out. Also add a DebugBuildIdentifier instruction to store a unique hash in both the output files, so they can be more easily matched together. A matching API is provided to allow using the Slang API to retrieve a base and debug SPIRV as well as the debug build identifier string.
* Fix missing debug info for the included slang file (#7281)Lujin Wang2025-06-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Fix missing debug info in the included slang file Issue: https://github.com/shader-slang/slang/issues/7271 Debug info including DebugFunction, DebugLocation, and DebugValue are missing in IR for "#included" Slang shader file. The included shader file was not added to TranslationUnit's source file list, therefore mapSourceFileToDebugSourceInst.add() was not called for the source in generateIRForTranslationUnit(), and later mapSourceFileToDebugSourceInst.tryGetValue() could not get value for the source to add DebugLocationDecoration, which led to missing DebugFunction, DebugLocation and other debug info for the included file in IR. Adding the include file in TranslationUnit's source file list fixes the issue. * Add source file using PreprocessorHandler Call _addSourceFile from FrontEndPreprocessorHandler::handleFileDependency. * Just use FrontEndPreprocessorHandler * Make _addSourceFile public * format code * Distingush the included source file * Add m_includedFileSet to avoid adding dup file HashSet<SourceFile*> m_includedFileSet; --------- Co-authored-by: ArielG-NV <159081215+ArielG-NV@users.noreply.github.com> Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>
* Fix rpc errors on slang-unit-tests (#7339)Jay Kwak2025-06-04
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* Add a new slang-test option `-enable-debug-layers` (#7300)Jay Kwak2025-06-02
| | | | | | | | | | | | | | | | | | | | | | * Add a new slang-test option `-enable-debug-layers` A variable `disableDebugLayer` is renamed to `enableDebugLayers`, and a corresponding command-line argument is added, `-enable-debug-layers`. The previous option `-disable-debug-layer` is still available, but it prints a deprecation warning message. The reason why it is added is to make the option available to both Debug and Release. On Debug build, it will be enabled by default, and it will be disabled on Release build. We should be able to not only disable it, but also enable it on Release build. Ideally this option should be enabled all the time, but currently there are too many VUID error messages printed and we are enabling only for Debug build for now. Note that the CI/CD will run with the option disabled until we resolve all of VUID errors.
* Parse char literals as integers (#6989)Julius Ikkala2025-05-06
| | | | | | | | | | | * Parse char literals as integers * Fix formatting * Parse escaped chars correctly --------- Co-authored-by: Yong He <yonghe@outlook.com>
* Smoke test WASM as a part of CI (#6969)Jay Kwak2025-05-01
| | | | | | | * Simplify build of slang-wasm * Add smoke-test for slang-wasm in ci * Avoid git-clone playground
* Initial support for immutable lambda expressions. (#6914)Yong He2025-04-30
| | | | | | | | | | | | | * Initial support for immutable lambda expressions. * More diagnostics, and langauge server fix. * Language server fix. * Fix bug identified in review. * Add expected result. * Update expected result.
* Add Slang Byte Code generation and interpreter. (#6896)Yong He2025-04-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Add Slang Byte Code generation and interpreter. * Fix compile issues. * format code * More compile fix. * Fix clang issue. * Fix more clang issues. * Another clang fix. * Fix clang issues. * Fix another clang issue. * Fix wasm build. * Update building.md * Fix test-server. * Fix compile error. * Fix bug. --------- Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>
* Implemented #pragma warning (#6748)Ronan2025-04-24
| | | | | | | | | | | | | | | | | | | | | | | | * Implemented #pragma warning Based on https://learn.microsoft.com/en-us/cpp/preprocessor/warning?view=msvc-170 * Make #pragma warning work with #includes. - SourceLoc are not sorted by inclusion order. - Construct a mapping from SourceLoc to "absolute locations" that are sorted by inclusion order (roughly represents a location in a raw file with all #include resolved). - The absolute location can be used in the pragma warning timeline * Added preprocessor #pragma warning tests. - Fixed #pragma warning (push / pop) SourceLoc - Fixed unused directiveLoc in #pragma warning parsing * #pragma warning: Added some comments and fixed some typos * Cleaned #pragma warning preprocessor implementation. --------- Co-authored-by: Yong He <yonghe@outlook.com>
* Add Yet Another Source Code Generator (#6844)Theresa Foley2025-04-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Add Yet Another Source Code Generator This change introduces an offline source code generation tool, provisionally called `fiddle`. More information about the design of the tool can be found in `tools/slang-fiddle/README.md`. Yes... this is yet another code generator in a project that already has too many. Yes, this could easily be a very obvious instnace of [XKCD 927](https://xkcd.com/927/). This change is part of a larger effort to change how the AST types are being serialized, and the way code generation for them is implemented. Right now, the source code for the new tool is being checked in and the relevant build step is enabled, just to make sure everything is working as intended, but please note that this change does *not* introduce any code in the repository that actually makes use of the new generator. All of the AST-related reflection information that feeds the current serialization system is still being generated using `slang-cpp-extractor`. The design of the new tool is primarily motivated by the new approach to serialization that I'm implementing, and once that new approach lands we should be able to deprecate the `slang-cpp-extractor`. In addition, the new tool should in principle be able to handle many of the kinds of code generation tasks that are currently being implemented with other tools like `slang-generate` (used for the core and glsl libraries). This tool should also be well suited to the task of generating more of the code related to the IR instructions. * format code * Build fixes caught by CI * Fix another warning coming from CI * Another CI-caught fix * Change bare hrows over to more proper abort execptions * format code --------- Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>
* Fix compiler warning with clang 18.1.8 on windows (#6843)Jay Kwak2025-04-17
| | | * Fix compiler warning with clang 18.1.8 on windows
* try to find cuda headers in /usr/include (#6800)Simon Kallweit2025-04-14
| | | | Co-authored-by: Simon Kallweit <simon.kallweit@gmail.com> Co-authored-by: Yong He <yonghe@outlook.com>
* Support for Payload Access Qualifiers (#3448) (#6595)Harsh Aggarwal (NVIDIA)2025-04-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Add support for Ray Payload Access Qualifiers (PAQs) (#3448) - Added [raypayload] attribute for struct declarations - Implemented field validation requiring read/write access qualifiers - Added diagnostic error for missing qualifiers - Enabled PAQs in DXC compiler and HLSL emission - Added new test demonstrating PAQ syntax - Implemented proper handling of ray payload attributes in IR generation * format code * Cleanup: Remove unused vars * Add check to enablePAQ only for profile >= lib_6_7 * Review Fix - Add PAQ support for DX Raytracing add enablePAQ flag to DownstreamCompileOpitons, improve PAQ handling update raypayload-attribute-paq.slang to ensure hlsl and dxil is validated * Add diagnostic test for missing paq for lib_6_7 Compile using `-disable-payload-qualifiers` aka lib_6_6 profile raypayload-attribute-no-struct.slang and raypayload-attribute.slang --------- Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com> Co-authored-by: Ellie Hermaszewska <ellieh@nvidia.com>
* Enable "-HV 2021" option for DXC (#6445)Jay Kwak2025-04-02
| | | * Enable "-HV 2021" option for DXC
* IR: Add SPIR-V disassembly for embedded downstream IR dumps (#6529)Mukund Keshava2025-03-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | * IR: Add SPIR-V disassembly for embedded downstream IR dumps When dumping IR that contains embedded downstream SPIR-V code (via EmbeddedDownstreamIR instructions), display the disassembled SPIR-V instead of just showing "<binary blob>". This CL also does: - Adds a new interface for disassembly and get result. - Modify export-library-generics.slang test test to check for the disassembled SPIR-V Fixes #6513 * Add module-dual-target-verify test Fixes #6517 Adds a new test to verify that dxil and spirv targets are stored separately in the precompiled blob. * Fix review comments from cheneym2 * format code --------- Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>
* Support SPIR-V deferred linking option (#6500)cheneym22025-03-05
| | | | | | | | | | | | | | | | | | | | | | | The new option "SkipDownstreamLinking" will defer final downstream IR linking to the user application. This option only has an effect if there are modules that were precompiled to the target IR using precompileForTarget(). Until now, the default behavior for SPIR-V was to use deferred linking, and the default behavior for DXIL was to use immediate/internal linking in Slang. This change only affects the SPIR-V behavior such that both deferred and non-deferred linking is supported based on the new option. To support the non-deferred option, Slang will internally call into SPIRV-Tools-link to reconstitute a complete SPIR-V shader program when necessary (due to modules having been precompiled to target IR). Otherwise, if SkipDownstreamLinking is enabled, the shader returned by e.g. getTargetCode() or getEntryPointCode() may have import linkage to the SPIR-V embedded in the constituent modules. Closes #4994 Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>
* Add raypayload decoration to ray payload structs (#6164)Ellie Hermaszewska2025-02-11
| | | | | | | | | * 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
* Fix static build and install (#6158)Dario Mylonopoulos2025-01-24
| | | | | | | * Add SLANG_ENABLE_RELEASE_LTO cmake option * Fix cmake static build * Disable install SlangTargets to avoid static build failing
* Fix gcc downstream compiler optimization level corresponding to ↵spking112025-01-21
| | | | OptimizationLevel::Maximal (#6137)
* update slang-rhi + fix nvrtc options (#6080)Simon Kallweit2025-01-14
| | | | | | | | | | | | | | | * update slang-rhi * pass --dopt=on to nvrtc when enabling debug information * fix leaks in slang-rhi * update slang-rhi * only use --dopt when available --------- Co-authored-by: Yong He <yonghe@outlook.com>
* Find OptiX headers (#6071)Simon Kallweit2025-01-13
| | | | | | | * add support for finding OptiX headers * add documentation * fix linux path
* Pass compiler specific args to GCC and Visual Studio too (#6019)Julius Ikkala2025-01-08
| | | Co-authored-by: Yong He <yonghe@outlook.com>
* Use disassemble API from SPIRV-Tools (#6001)Jay Kwak2025-01-07
| | | | | | | | | | | | | | | | | | | | | | | | | | * Use disassemble API from SPIRV-Tools This commit uses C API version of SPIRV disassemble function rather than calling spirv-dis.exe. This allows us to use a correct version of SPIRV disassble function that Slangc.exe is using. The implementation is mostly copied from external/spirv-tools/tools/dis/dis.cpp, which is a source file for building spirv-dis.exe. This commit also includes a fix for a bug in RPC communication to `test-server`. When an RPC connection to `test-server.exe` is reused and the second test abruptly fails due to a compile error or SPIRV validation error, the output from the first test run was incorrectly reused as the output for the second test. This commit resets the RPC result before waiting for the response so that even when the RPC connection is erratically disconnected, the result from the previous run will not be reused incorrectly. Some of the tests appear to be relying on this type of behavior. By using an option, `-skip-spirv-validation`, the RPC connection will continue without an interruption.
* Fix metadata of register space and varying params. (#5906)Yong He2024-12-18
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* Correctly distinguish between windows and MSVC (#5851)Ellie Hermaszewska2024-12-13
| | | Partially sorts https://github.com/shader-slang/slang/issues/5843
* Correct casing of windows includes (#5849)Ellie Hermaszewska2024-12-12
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* Conform non-suffixed integer literals (#5717)Darren Wihandi2024-12-03
| | | | | | | | | | | | | | | | | | | | | * Make non-suffixed integer literal type resolution conform to C * Update integer literal tests * Clean up integer literal implementation a bit * Update docs on integer literals * Clean up docs update * Clean up docs update * Add comment on INT64_MIN edge case * Fixed failing test, fixed formatting and cleaned up code --------- Co-authored-by: Yong He <yonghe@outlook.com>
* Embed core module in wasm build. (#5569)Yong He2024-11-15
| | | | | | | | | | | * Embed core module in wasm build. * format code * add uintptr_t case. --------- Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>
* Reflection compiler option (#5507)tareksander2024-11-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | * Moved the pretty writer code from slang-reflection-test into core * Moved reflection test code into the slang codebase and added the compiler option -reflection-json to store the reflection data in a separate file. * Documented -reflection-json command line option * moved PrettyWriter from core to compiler-core * Fixed variable shadowing warning * Use File::writeAllText instead of OSFilesystem and write to stdout if - is used as the path * format code * Fixed linker error * Fix COM Ptr life time issues. * Move enum to the end. * Fix formatting. --------- Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com> Co-authored-by: Yong He <yonghe@outlook.com>
* Move switch statement bodies to their own lines (#5493)Ellie Hermaszewska2024-11-05
| | | | | | | | | * Move switch statement bodies to their own lines * format --------- Co-authored-by: Yong He <yonghe@outlook.com>
* formatEllie Hermaszewska2024-10-29
| | | | | | | * format * Minor test fixes * enable checking cpp format in ci
* preparation for clang format (#5422)Ellie Hermaszewska2024-10-29
| | | | | | | | | | | | | | | | | | | | | | | * Clang-format excludes * Add .clang-format * Don't clang-format in external * Missing includes and forward declarations * Replace wonky include-once macro name * neaten include naming * Add clang-format to formatting script * Add xargs and diff to required binaries * add clang-format to ci formatting check * Add max version check to formatting script * temporarily disable checking formatting for cpp files
* Export language server to wasm. (#5419)Yong He2024-10-27
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* declutter top level CMakeLists.txt (#5391)Ellie Hermaszewska2024-10-24
| | | | | | | | | | | | | | | | | | | | | * 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
* Recognize a new spirv header json grammar keyword "aliases" (#5367)Jay Kwak2024-10-21
| | | | | | | | | * Recognize a JSON keyword "aliases" for SPIRV-header This commit will handle the new JSON keyword "aliases" in SPIRV-Header grammar files. "aliases" are used in two places: one for "opname" and another for "enumerants". This commit itself wouldn't do anything until we integrate new commits from SPIRV-Header repo.
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