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2025-06-26Hide atomics struct from reflection api (#7520)James Helferty (NVIDIA)
* Atomic reflection unit test Test that Atomic<int> is reflected as a scalar/int instead of a struct named Atomic. * Hide AtomicType from reflection Leverage the fact that returned variables go through convert() to centralize the unwrapping of the AtomicType struct. Fixes #6257 * Clean up unit test a bit - rename bar to buf (since one of them is not Atomic and thus not a barrier) - validate deeper into the fields of bufC - remove debug code
2025-06-18Fix retry logic for unit test (#7471)Jay Kwak
* Fix the ignored unit-tests on retry * Retrigger CI * Add more error messages * Don't use test-server for retry of unit-test to see error messages * Clean up cl.yml Remove 'has-gpu' because it is unused after debug became full-gpu-test. Renamed files to make the meaning more clear: - Renamed expected-failure.txt to expected-failure-via-glsl.txt - Renamed expected-failure-github-runner.txt to expected-failure-no-gpu.txt * Rename cpu-hello-world.slang to avoid name conflict to example We have an example whose executable name is cpu-hello-world.exe. It gets built when you run `cmake --build`, but it gets overwritten by slang-test when it tests `tests/cpu-program/cpu-hello-world.slang`. This PR renames to avoid the name conflict. * Remove debug code --------- Co-authored-by: Yong He <yonghe@outlook.com>
2025-06-12Fix API changes from separate debugging support (#7397)jarcherNV
Recent separate debugging support added two new functions which broke backwards compatibility. This change restores the old API and moves the new functions to an IComponentType2 interface which can be used if separate debug files are needed.
2025-06-06Add command line option for separate debug info (#7178)jarcherNV
* 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.
2025-06-05Clean up a dead code forgot to delete (#7358)Jay Kwak
2025-06-04Break down record replay to individual tests to avoid timeout (#7340)Jay Kwak
* Break down RecordReply to individual tests to avoid timeout In Debug build, RecordReplay unit-test was timing out. It was running six tests all in one unit-test, but this commit breaks it down to individual test so that each unit test can be done within the timeout limit. This issue has seen only in Debug build but it has been unnoticed because even when the test failed with test-server, it was still passing on its retry because the time-out applies only when using test-server. * Reduce the retry from 2 times to 1 time * Remove RecordReplay from expected failure
2025-05-17fix the break to make sure only valid data will be accessed (#7148)Gangzheng Tong
2025-05-12Cleanups related to RIFF support (#7041)Theresa Foley
2025-05-02Fix seg-fault in cudaCodeGenBug test (#6985)Jay Kwak
`cudaCodeGenBug` is expected to fail on Linux, because the variable `code` is nullptr. When the next test tried to dereference, it causes a seg-fault.
2025-05-02Fix intermittent failure of slang-unit-test-tool/ReplayRecord (#6981)Jay Kwak
* Fix intermittent failure of slang-unit-test-tool/ReplayRecord Three problems are addressed: 1. the graphics driver sometimes returns nullptr from GetShaderIdentifier 2. `findRecordFileName()` may not find any records at all. 3. the return value from cleanupRecordFiles() overwrote the error value in `res` and it returned SLANG_OK even when there were errors. * Fix compiler warnings on Windows
2025-04-28Add Slang Byte Code generation and interpreter. (#6896)Yong He
* 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>
2025-04-26Added getCanonicalGenericConstraints2 (sorts constraints and allows more ↵Ronan
generic expressions) (#6787)
2025-04-07Return non-escaped strings from user-defined attributes (#6735)aidanfnv
Fixes #6624 This commit changes the behavior of getArgumentValueString() to return the string's value, instead of returning the string's token, as that token also contains the surrounding quotation marks. This commit also modifies the relevant unit test accordingly, to not check for the surrounding quotations.
2025-03-05Fix codegen bug when targeting PTX with new API (#6506)Anders Leino
* Add cuda codegen bug repro This just compiles tests/compute/simlpe.slang for PTX with the new compilation API, in order to reproduce a code generation bug. * Detect entrypoint more robustly when applying ConstRef hack during lowring For shaders like tests/compute/simple.slang, which have a 'numthreads' attribute but no 'shader' attribute, the old compile request API would add an EntryPointAttribute to the AST node of the entry point. However, the new API doesn't, and so a certain ConstRef hack doesn't get applied when using the new API, leading to subsequent code generation issues. This patch also checks for a 'numthreads' attribute when deciding whether to apply the ConstRef hack. This closes issue #6507 and helps to resolve issue #4760. * Add expected failure list for GitHub runners Our GitHub runners don't have the CUDA toolkits installed, so they can't run all tests.
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.
2025-02-13Disallow 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>
2025-02-05Feature/initialize list side branch (#6058)kaizhangNV
* SP004: implement initialize list translation to ctor - We synthesize a member-wise constructor for each struct follow the rules described in SP004. - Add logic to translate the initialize list to constructor invoke - Add cuda-host decoration for the synthesized constructor - Remove the default constructor when we have a valid member init constructor - Disable -zero-initialize option, will re-implement it in followup (#6109). - Fix the overload lookup issue When creating invoke expression for ctor, we need to call ResolveInvoke() to find us the best candidates, however the existing lookup logic could find us the base constructor for child struct, we should eliminate this case by providing the LookupOptions::IgnoreInheritance to lookup, this requires us to create a subcontext on SemanticsVisitor to indicate that we only want to use this option on looking the constructor. - Do not implicit initialize a struct that doesn't have explicit default constructor. Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>
2025-01-28Fix geometry shader related modifier lowering. (#6197)Yong He
* Fix geometry shader related modifier lowering. * Cleanup. * Delete obselete test. * Enable geometryShader test on windows only. * Fix test.
2025-01-28Add a unit test to cover type-conformance compilation API. (#6178)Yong He
Co-authored-by: Anders Leino <aleino@nvidia.com>
2025-01-22Cache and reuse glsl module. (#6152)Yong He
* Cache and reuse glsl module. * Fix. * Implement record/replay for the new api. * Fix record replay. * Fix test.
2025-01-15Fix argument buffer tier2 layout computation. (#6101)Yong He
2025-01-03Create DirectDeclRef when creating Decl to prevent invalid dedup. (#5945)Yong He
* Create DirectDeclRef when creating Decl to prevent invalid dedup. * Fix test. * fix * update slang-rhi
2025-01-03Fix parameter location reflection for pure data paramblocks. (#5956)Yong He
2024-12-18Fix metadata of register space and varying params. (#5906)Yong He
2024-12-17Support specializing generic entrypoints in `findAndCheckEntryPoint`. (#5890)Yong He
2024-12-17Fix entrypoint auto discovery logic. (#5885)Yong He
* Fix entrypoint auto discovery logic. * format code --------- Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>
2024-12-18Fix `getArgumentValueFloat` when arg is int. (#5888)Yong He
* Fix `getArgumentValueFloat` when arg is int. * format code --------- Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>
2024-12-11Fix attribute reflection. (#5823)Yong He
* Fix attribute reflection. * Fix. * Fix.
2024-12-09Fix reflection for pointer element types. (#5797)Yong He
* Fix reflection for pointer element types. * Fix. --------- Co-authored-by: Ellie Hermaszewska <ellieh@nvidia.com>
2024-11-20Change how DeclRef::toText works (#5592)Sai Praveen Bangaru
* Change how DeclRef::toText works We now ignore the decl-ref heirarchy since that only includes nodes with specialization info & simply walk up the tree of decls, while emitting any specializations present in the decl-ref. * Update some tests. Add cases for direct refs to generic params & Lookup decl refs
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>
2024-11-05Move switch statement bodies to their own lines (#5493)Ellie Hermaszewska
* Move switch statement bodies to their own lines * format --------- Co-authored-by: Yong He <yonghe@outlook.com>
2024-10-29formatEllie Hermaszewska
* format * Minor test fixes * enable checking cpp format in ci
2024-10-23Fix several bugs with `specializeWithArgTypes()` (#5365)Sai Praveen Bangaru
* Fix several bugs with `specializeWithArgTypes()` * Make all types L-values for the purposes of reflection API resolution
2024-10-16Fix entrypoint naming in glsl backend. (#5320)Yong He
2024-10-15Fix type checking on generic extensions. (#5316)Yong He
Add fcpw library to test suite.
2024-10-15 Move C interface from slang.h to slang-deprecated.h (#5301)Ellie Hermaszewska
* Squash redundant move warnings * Move C interface from slang.h to slang-deprecated.h spGetBuildTagString remains, because it's useful to have before the global session exists. This C API is used quite pervasively in the C++ helpers (for example slang::UserAttribute. It's not trivial to move these to slang-deprecated.h as they're entangled with some enums which are themselves used elsewhere in the compiler. The fact that these helpers use the C API can be viewed as an implementation detail for now, and this usage moved to slang-deprecated in due course. Closes https://github.com/shader-slang/slang/issues/4758 * Squash warnings for our usage of our deprecated API --------- Co-authored-by: Yong He <yonghe@outlook.com>
2024-10-14Fix assert when compiling an entrypoint that calls another entrypoint. (#5268)Yong He
* Fix assert when compiling an entrypoint that calls another entrypoint. * Fix test.
2024-10-09Fix bug related to findAndCheckEntrypoint. (#5241)Yong He
2024-09-30Add COM API for querying metadata. (#5168)Yong He
* Add COM API for querying metadata. * Fix tests. * fix test.
2024-09-26Move texture format inference to frontend and add reflection api for it. (#5155)Yong He
2024-09-19Allow lookups of overloaded methods. (#5110)Sai Praveen Bangaru
* Allow lookups of overloaded methods. * Update slang-reflection-api.cpp * Update slang.cpp --------- Co-authored-by: Yong He <yonghe@outlook.com>
2024-09-16Add API method to specialize function reference with argument types (#4966)Sai Praveen Bangaru
* Add `FunctionReflection::specializeWithArgTypes()` * Update slang.cpp * Use a shared semantics context on linkage Improve performance on reflection queries * Try to fix linux/mac compile errors
2024-09-03Add Path::removeNonEmpty() to remove non-empty dir (#4984)kaizhangNV
We've implemented a function in slang-record-replay unit test to remove the non-empty directory, now move this function into slang `Path` namespace to make this function as an utility. Close issue #4916
2024-08-30capture component type (#4967)kaizhangNV
* Refactor the IComponentType recording Refactor the `IComponentType` recording by creating a abstract class `IComponentTypeRecorder` to record all the methods of `IComponentType`, so that `ICompositeComponentType`, `IModule`, 'IEntryPoint', 'ITypeConformance' can share the same recording implementation. Capture the out IComponentType from linkWithOptions() link() specialize() renameEntryPoint() * fix bugs * Finish the unimeplemented functions in json consumer Fix the address print to use 64 bit hex. Fix the reference count issue when allocating new recorder object. * Disable few examples using reflection APIs * Add gpu-printing example into slang-test * Replace of using std::unique_ptr with RefPtr
2024-08-28Migrate 3 more examples to slang-unit-test (#4927)kaizhangNV
* Convert 'ray-tracing-pipeline' example into slang-test * Convert model-view and 'autodiff-texture' examples to slang-test * Add more error message in RecordReplay test * Fix a shader issue in autodiff-texture
2024-08-27Add ability to specialize generic references to functions, types and more ↵Sai Praveen Bangaru
(#4909) * More reflection API features. + Lookup methods and members (by string) on types + Fix issue with looking up non-static members through the scope operator '::' + `GenericReflection`: Cast a decl to generic to access unspecialized generic parameter names and constraints + `GenericReflection`: Use `getGenericContainer()` from function, variable or type to access the 'nearest' generic parent along with specialization info + `GenericReflection::getConcreteType` and `GenericReflection::getConcreteIntVal`: to get the concrete type of a param in the context of the reflection object + `GenericReflection::getOuterGenericContainer` to go up one level and get the outer generic declarations (if there are more than one enclosing generic scopes) + `DeclReflection::getParent`: go to parent declaration. + Change `VariableReflection` to be a `DeclRef` rather than a decl (allows us to return properly substituted types for methods, members, and more) * Fix Falcor issue * Initial namespace reflection support * FIx issue with specializing witness tables * Add API method for specializing parameters of a generic decl * Add ability to specialize generic references to functions, types and more This PR adds the following end-points: - `specializeGeneric()` method that can be called on a generic reflection to substitute arguments for generic type and value parameters. It returns another generic reflection, but this time with the appropriate substitution. - `applySpecializations()` method to then copy these specializations onto an existing type or function reflection. - `isSubType()` to check if a type is a subtype of another type (useful to check if a type is differentiable by checking `IDifferentiable`) This PR also: - Adds `DeclReflection::Kind::Namespace` so that namespace containers are correctly reflected when walking the decl-tree. the name can be obtained through `getName()` but there's no need to cast to a namespace (since there's nothing else we can do with a namespace decl) - Fixes an issue with name-based lookups that fail if a type or function is referenced without specializations. Its helpful to be able to form a reference to a function with default substitutions, so that we can we can specialize it later (either directly, or via argument types). * Update slang.h * Fix up naming * Update slang-compiler.h * Update slang-reflection-api.cpp * Update slang.cpp * Update slang.cpp * Update slang.cpp * Use `checkGenericAppWithCheckedArgs` to do specialization * Update slang-reflection-api.cpp * Update slang-check-decl.cpp
2024-08-27Migrate examples (#4920)kaizhangNV
* Migrate cpu-hello-world to new slang API Migrate cpu-hello-world to new slang API, and also convert this example as one of the unit test. * Add 'shader-object' to slang-unit-test * Convert ray-tracing example into unit-test Convert ray-tracing example into unit-test * Fix some replay bugs: - Wrong decode type in 'getEntryPointHostCallable'. - Mistakes in computing the output buffer size. - Wrong decode type in array size in specialize() call. - When capture entrypoint, we should increase the reference count for the allocated entrypoint recorder object, because that is allocated by record layer, it should be owned by the layer, user should not be able to free it. - Improve json consumer on the prelude text. * Test verify change: In our test, we add a "callIdx" string at beginning of the hash-code string, as there could be more than one modules in the example, so they could call 'getEntryPointHash' multiple times, in order for the test can identify them, add "callIdx: <number>" as the key word.
2024-08-26Feature/record unit test (#4910)kaizhangNV
* Fix the slang-test bug Since we reorganize the build directory, now the libraries are located at different directory with executables in non-Windows platform, we have to change the code on how to find the dll directory. * Integrate the record/replay test into slang-unit-test We create a unit-test-record-replay.cpp to run the converted slang examples in child process as our tests for the record-replay layer. * Disable the test on Apple Due to the limitation of current examples, we temporarily disable them on apples. Change the ci to make this test only be run on the gpu-equipped runners, for other runners we add a white-list file "expected-failure-record-replay-tests.txt". * Remove 'hello-world' example from unit test "hello-world" doesn't use gfx abstract library, instead it uses vk directly, it's not a preferable way. So we will drop this test, instead, we will use cpu-hello-world example.