slang.git/external, branch master

Update SPIRV-Tools and SPIRV-Headers to latest versions (#8722)

2025-10-16T22:16:18+00:00

Update slang-rhi (#8709)

2025-10-16T17:18:31+00:00

- Update to latest slang-rhi - Enable additional slang-rhi tests for OptiX 8.0 and 8.1

Update build to allow setting external mimalloc path (#8676)

2025-10-11T00:51:58+00:00

Update the build to allow setting user-specific path for the external module mimalloc.

Rename some symbols related to pointers types (#8592)

2025-10-03T04:48:11+00:00

Note that while this change touched a large numer of files, there are no changes to functionality being made here. The only things being done are renaming various symbols and, in a few cases, updating or adding comments for consistency with the new names. The core of the naming changes are: * Most things named to refer to `OutType` (e.g., `IROutType`, `IRBuilder::getOutType()`, etc.) have been consistently renamed to refer to `OutParamType`, to emphasize that the relevant AST/IR node types are only intended for use to represent `out` parameters. * The same change as described above for `OutType` is also made for `RefType`, which becomes `RefParamType` in most cases. One mess that this exposes is the way that the `ExplicitRef` type in the core module currently lowers to `IRRefParamType`. This change sticks to the rule of not making functional changes, so that mess is left as-is for now. * Names referring to `InOutType` have been changed to instead refer to `BorrowInOutType`. The intention with this naming change is to emphasize that the Slang rules for `inout` are semantically those of a borrow (or at least our interpretation of what a borrow means). * Names referring to `ConstRefType` have been changed to instead refer to `BorrowInType`. This change starts work on clarifying that the existing `__constref` modifier was never intended to be a read-only analogue of `__ref`, and instead is the input-only analogue of `inout`. * The `ParameterDirection` enum type has been changed to `ParamPassingMode`, to reflect the fact that the concept of "direction" fails to capture what is actually being encoded, particularly once we have modes beyond simple `in`/`out`/`inout`. While this change does not alter behavior in any case (the user-exposed Slang language is unchanged), it is intended to set up subsequence changes that will work to make the handling of these types in the compiler more nuanced and correct. Breaking this part of the change out separately is primarily motivated by a desire to minimize the effort for reviewers. --------- Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>

Update SPIRV-Tools and SPIRV-Headers to latest versions (#8565)

2025-10-01T16:17:04+00:00

Prepare VulkanSDK release Oct 2025 (#8525)

2025-09-25T04:49:26+00:00

Related to - https://github.com/shader-slang/slang/issues/8519

Fix SPIRV headers precedence (#8481)

2025-09-19T15:45:30+00:00

Remove SYSTEM flag from SPIRV-Headers to fix MacOS header precedence. When the path is registered as SYSTEM, it is used with `-isystem` option not `-I` option and it gets less searching order on MacOS. When spirv.h is installed on the system directory, it will end up using the system installed spirv.h, which is most likely an older version than we should use.

Set default mimalloc for spirv-tools but allow user to override (#8460)

2025-09-17T19:27:57+00:00

This PR resolves a configuration conflict where the SLANG_ENABLE_SPIRV_TOOLS_MIMALLOC option was defined twice with different defaults, causing user settings to be overridden. Changes: - Removed duplicate definition in external/CMakeLists.txt that only applied to WIN32 - Define default in main CMakeLists.txt - ON by default for Windows - OFF by default for other platforms (still need to resolve crashes so set it to `OFF` for now) Preserved user configuration - explicit -DSLANG_ENABLE_SPIRV_TOOLS_MIMALLOC=value settings are now properly respected Related to https://github.com/shader-slang/slang/issues/8158 --------- Co-authored-by: slangbot Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>

Added __magic_enum (#8436)

2025-09-17T12:46:27+00:00

Fixes #8406 (and #8410). `AddressSpace`, `MemoryScope` and `AccessQualifier` are no longer `BaseType`. I added a new `__magic_enum` (very similar to `__magic_type`) syntax to be able to easily create values or these enums from the compiler. (I don't know if it was the right way to do it, but it works and the changes are small enough?). I had a weird bug: `tests/language-feature/capability/address-of.slang` was failing in `IRBuilder::_findOrEmitConstant(IRConstant& keyInst)`. When needing a new `u64(0)`, it did not find it in the `ConstantMap` first, but then failed to add it right after because it already existed in the map! But this was triggered by `IRPtrType* IRBuilder::getPtrType(IROp op, IRType* valueType, AccessQualifier accessQualifier, AddressSpace addressSpace)`, which is a strange coincidence... but I could not find the issue in what I did. I ended up bumping unordered_dense, and it solved the issue (so there was a bug in there).

Enable static mimalloc in Spriv-Tools (#8419)

2025-09-16T01:46:59+00:00

* Added optional mimalloc integration for SPIRV-Tools to improve compilation performance * Cloning `mimalloc` repo to external/ on demand during cmake config * Enabled by default on Windows, configurable via `SLANG_ENABLE_SPIRV_TOOLS_MIMALLOC` CMake option, to enable static mimalloc build in spirv-tools. * There are some crashes in Linux and Mac with static mimalloc enabled, likely due to the system malloc and mimalloc mixed usage. This might be expected as mimalloc in spirv-tools is not extensively tested according to https://github.com/KhronosGroup/SPIRV-Tools?tab=readme-ov-file#dependency-on-mimalloc. So by default only Windows has this enabled. Close: https://github.com/shader-slang/slang/issues/8158 --------- Co-authored-by: slangbot Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>