slang.git/docs/command-line-slangc-reference.md, branch master

Add SPV_NV_bindless_texture support (#8534)

2025-09-26T23:07:13+00:00

Treat DescriptorHandle as uint64_t instead of uint2. Implement target-specific SPIR-V emission with the bindless texture support. For OpImageTexelPointer, Image must have a type of OpTypePointer with Type OpTypeImage. Fix the issue by using [constref] in __subscript. Add a test coverage for various texture/sampler handle types. --------- Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>

[CBP] Pointer frontend changes + groupshared pointer support (#7848)

2025-08-29T22:52:34+00:00

Resolves #7628 Resolves: #8197 Primary Goals: 1. Add `Access` to pointer 2. AddressSpace::GroupShared support for pointers (SPIR-V) 3. Add `__getAddress()` to replace `&` * `&` is not updated to `require(cpu)` since slangpy uses `&`. This means we must: (1) merge PR; (2) replace `&` with `__getAddress()`; (3) add `require(cpu)` to `&` Changes: * Added to `Ptr` the `Access` generic argument & logic (for `Access::Read`). * Moved the generic argument `AddressSpace` from `Ptr` to the end of the type. * Added pointer casting support between any `Ptr` as long as the `AddressSpace` is the same * Disallow globallycoherent T* and coherent T* * Disallow const T*, T const*, and const T* * Fixed .natvis display of `ConstantValue` `ValOperandNode` * Support generic resolution of type-casted integers * Added `VariablePointer` emitting for spirv + other minor logic needed for groupshared pointers Breaking Changes: * Anyone using the `AddressSpace` of `Ptr` will now have to account for the `Access` argument * we disallow various syntax paired with `Ptr` and `T*` --------- Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>

Introduce CDataLayout & -fvk-use-c-layout (#8136)

2025-08-21T05:47:18+00:00

Closes #8112. ~~The issue asks for a "C layout", but in this PR I use the term "CPU layout" because this naming was pre-existing in the codebase as `kCPULayoutRulesImpl_`. The primary purpose of this layout is to match CPU-side struct definitions with the shader side. I'm open to better naming suggestions, though.~~ Edit: switched back to using `CDataLayout` & `-fvk-use-c-layout`, as the CPU target depends on the object layout rules of existing CPU layout rules, but they're incompatible with actual shaders. So a new `kCLayoutRulesImpl_` was needed anyway. --------- Co-authored-by: Ellie Hermaszewska

Error if super-type capabilities are a super-set of sub-type (#7452)

2025-08-08T20:19:25+00:00

Fixes: #7410 Changes: 1. super-type capabilities must be a super-set of sub-type capabilities (and support the same shader stages/targets) * InheritanceDecl visits super-type to inherit it's capabilities; validate InheritanceDecl capabilities against sub-type * visit all container decl's with a default case * clean up functionDeclBase visitor * Simplify `diagnoseUndeclaredCapability` by moving logic into capability checking (more correct*) 3. added changed behavior to documentation 4. fixed some incorrect capabilities 5. **we do not** diagnose capability errors on interface requirement-to-implementation if both lack explicit capability requirements. This change is to work around a slangpy regression (test case for the failing situation is in `tests\language-feature\capability\capability-interface-extension-1.slang`), Note: maybe for slang-2026 we don't do this? 6. requirement & implementation must support the same shader stage/target. This was changed because otherwise we can have cases where `X` inherits from `Y`, but `Y` is only expected to be used in `glsl` whilst `X` is expected to be used in `hlsl | glsl` 7. removed `tests/language-feature/capability/capabilitySimplification3.slang` because it tests nothing special (redundant) Note: not using rebase due to separate branches depending on this PR --------- Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>

Omit "Invalid" capability from slangc -h output (#8020)

2025-08-01T02:59:46+00:00

* Omit "Invalid" capability from slangc -h output * format code (#23) Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com> --------- Co-authored-by: slangbot Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>

msvc style bitfield packing (#7963)

2025-07-31T07:23:13+00:00

Closes https://github.com/shader-slang/slang/issues/3646 New tests rather than just adding another TEST line to existing tests so that we get the msvc- prefix in the output of slang-test

Fix metallib-asm target parsing by adding missing comma (#7902)

2025-07-25T02:26:02+00:00

* Fix metallib-asm target parsing by adding missing comma The metallib-asm target was not being recognized from command line because of a syntax error in the target string definition in slang-type-text-util.cpp. A missing comma after the first "metallib-asm" string caused C++ string literal concatenation to create a malformed string. Resolves #7774 Co-authored-by: Jay Kwak * format code (#7910) Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com> * regenerate command line reference (#7911) Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com> --------- Co-authored-by: Claude Code Co-authored-by: Jay Kwak Co-authored-by: slangbot Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>

Correct help text for `-dump-intermediate-prefix` (#7768)

2025-07-16T00:48:43+00:00

Fix `slangc --help` text for `-reflection-json` (#7653)

2025-07-09T21:34:09+00:00

Stable names and backwards compat for serialized IR modules (#7644)

2025-07-09T06:41:19+00:00

* stable names * tests, options and ci for stable names * Add back compat design document * fix warnings * formatting * comment * neaten * regenerate command line reference * consolidate ci scripts * faster ci * remove libreadline * Move new function to end of interface --------- Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>