1 Release published by 1 person

• vulkan-sdk-1.4.321.0

  published Jul 15, 2025

50 Pull requests merged by 16 people

• Add bounds checking for out-of-bounds array access with constant indices

  #7814 merged Jul 18, 2025

• Fix GLSL global const diagnostic regression

  #7808 merged Jul 18, 2025

• Prelink ForceInlined functions during lowering.

  #7812 merged Jul 18, 2025

• slang: Update ir-instruction-definition.md to reflect changes to operand specifications

  #7804 merged Jul 17, 2025

• slang: Add support for generating getters for IR struct defs.

  #7725 merged Jul 17, 2025

• fix typo

  #7794 merged Jul 17, 2025

• mention adding new stable names manually

  #7802 merged Jul 17, 2025

• fix const qualifier for specialization constants in glsl

  #7640 merged Jul 17, 2025

• Fix BitCast emitting bit shifts with too small integer types

  #7792 merged Jul 17, 2025

• Merge NamePool and RootNamePool into a single type

  #7797 merged Jul 17, 2025

• Fix duplicate mangled names for interface requirements

  #7764 merged Jul 17, 2025

• Improve lookup performance.

  #7798 merged Jul 17, 2025

• Perf improvements to IR serialization

  #7751 merged Jul 17, 2025

• Further increase claude action limits.

  #7803 merged Jul 17, 2025

• Increasee timeout of claude workflow to 6 hours.

  #7801 merged Jul 17, 2025

• Document IR changes

  #7781 merged Jul 17, 2025

• bump and pin cmake formatter version

  #7800 merged Jul 17, 2025

• Fix formatting

  #7799 merged Jul 17, 2025

• Fix duplicate DiffPair struct generation for row_major matrices in autodiff

  #7728 merged Jul 16, 2025

• Strip debug info only for the SpvOpExtInst of debug import type

  #7779 merged Jul 16, 2025

• Format code for PR #7764

  #7787 merged Jul 16, 2025

• Fix CUDA issues with texture reads and surface writes

  #7780 merged Jul 16, 2025

• Diagnose on initExpr of a global const decl

  #7711 merged Jul 16, 2025

• Note that Slang::String is owned/null-terminated

  #7648 merged Jul 16, 2025

• Document why failing VVL coop-vec tests cannot be enabled & minor cleanup/bug-fix

  #7754 merged Jul 16, 2025

• Correct help text for -dump-intermediate-prefix

  #7768 merged Jul 16, 2025

• Fix Metal pointer type emission in entry point parameters

  #7759 merged Jul 16, 2025

• Fix GLSL memory layout qualifiers not applied to uniform buffers or cbuffers

  #7740 merged Jul 16, 2025

• Fix WGSL sign function to return correct int type instead of float

  #7739 merged Jul 16, 2025

• Add clear diagnostic for unsupported float types in generic value parameters

  #7737 merged Jul 16, 2025

• Emit additional diagnostic for invalid pointer taking operations

  #7663 merged Jul 16, 2025

• Debugging code improvement for IR tracking

  #7770 merged Jul 16, 2025

• Add Claude local setting files to .gitignore

  #7771 merged Jul 15, 2025

• Format code for PR #7663

  #7772 merged Jul 15, 2025

• Fix slang-generate segfault when parsing $(()...)

  #7683 merged Jul 15, 2025

• Replace [KnownBuiltin] string-based comparisons with enum-based system

  #7714 merged Jul 15, 2025

• Format code for PR #7740

  #7742 merged Jul 15, 2025

• Format code for PR #7711

  #7765 merged Jul 15, 2025

• Fix language server crash.

  #7756 merged Jul 15, 2025

• Let flake.nix users run extras/formatting.sh

  #7682 merged Jul 14, 2025

• Add WorkgroupCount function

  #7734 merged Jul 12, 2025

• Update claude instructions to help with debugging.

  #7732 merged Jul 12, 2025

• Fixup address spaces after inlining.

  #7731 merged Jul 12, 2025

• Enable (at least a sub-set of) CoopVec tests that are disabled

  #7706 merged Jul 12, 2025

• Add DebugGlobalVariable instructions to SPIR-V output

  #7686 merged Jul 12, 2025

• Use stdout for --help text instead of stderr

  #7730 merged Jul 12, 2025

• Fix segfault with Ptr<T> extension using 'This' type reference

  #7719 merged Jul 12, 2025

• Fix unnecessary Int64 SPIRV capability usage in pointer marshalling

  #7717 merged Jul 12, 2025

• Fix metal segfault by check vectorValue before accessing

  #7688 merged Jul 11, 2025

• Fix IEEE 754 NaN comparisons in constant folding

  #7721 merged Jul 11, 2025

16 Pull requests opened by 8 people

• Use stdout for -dump-ir instead of stderr

  #7729 opened Jul 11, 2025

• Fix debug info generation for let variables in SPIR-V output

  #7743 opened Jul 12, 2025

• Fix dictionary key collision errors in loop statement processing

  #7757 opened Jul 14, 2025

• Fix HitObject.Invoke signature by removing unnecessary RaytracingAccelerationStructure parameter

  #7763 opened Jul 15, 2025

• Fix ray-tracing examples to skip unsupported compaction on Metal

  #7769 opened Jul 15, 2025

• Fix segfault when using -separate-debug-info with unsupported targets

  #7777 opened Jul 15, 2025

• Rename Slang::Session to Slang::GlobalSession

  #7806 opened Jul 17, 2025

• Document how to use LLDB in the Slang codebase

  #7809 opened Jul 17, 2025

• Rename Slang::Session to Slang::GlobalSession

  #7810 opened Jul 17, 2025

• Bring back hooks for auto formatting and ensure build works

  #7811 opened Jul 17, 2025

• Fix enum array indexing by adding implicit conversion support

  #7815 opened Jul 18, 2025

• Add comment support to expected-failure files in slang-test

  #7817 opened Jul 18, 2025

• Claude: increase tool timeout setting.

  #7818 opened Jul 18, 2025

• Add SLANG_DEBUG_IR_BREAK environment variable for LLM debugging assistance

  #7820 opened Jul 18, 2025

• Add CI to check ir module versioning

  #7821 opened Jul 18, 2025

• slang: Add support for generating a subset of IRBuilder methods

  #7822 opened Jul 18, 2025

41 Issues closed by 13 people

• Out of bounds array access generates invalid SPIR-V instead of error

  #7813 closed Jul 18, 2025

• Fix regression of global `const` diagnostic regression in GLSL mode.

  #7807 closed Jul 18, 2025

• property with parameters

  #7767 closed Jul 17, 2025

• Create blog post for improving performance of 2D splatting using wave intrinsics

  #7020 closed Jul 17, 2025

• specialization constants lack `const` qualifier when compiling through glsl

  #7614 closed Jul 17, 2025

• Merge `NamePool` and `RootNamePool`

  #7795 closed Jul 17, 2025

• Pointer casts (sometimes) dropping upper 32 bits

  #7790 closed Jul 17, 2025

• IR Deserialization: Optimize critical deserialization paths

  #7192 closed Jul 17, 2025

• Multiple (distinct) Slang IR symbols given the same mangled name

  #7761 closed Jul 17, 2025

• IR Deserialization: Create performance benchmarks

  #7191 closed Jul 17, 2025

• IR Deserialization: Document new IR architecture

  #7193 closed Jul 17, 2025

• ramp-up

  #7785 closed Jul 17, 2025

• Slang generates duplicate structs when using `row_major` qualifier.

  #7726 closed Jul 16, 2025

• Compilation failure for `metallib` target with "invalid operands to binary expression"

  #6174 closed Jul 16, 2025

• some of the texture formats cannot be written (surface write with conversion)

  #7572 closed Jul 16, 2025

• 3D textures generate invalid PTX

  #7571 closed Jul 16, 2025

• [CBP] Disallow `Ptr<coherent T>` and `Ptr<const T>`

  #7778 closed Jul 16, 2025

• Metal pointers

  #7605 closed Jul 16, 2025

• GLSL memory layout qualifiers not applied to uniform buffers or cbuffers

  #7735 closed Jul 16, 2025

• Slang fails to cast output of sign of float to an int for wgsl, leading to invalid output

  #7738 closed Jul 16, 2025

• Slang playground: Only ints allowed as generic parameters, not floats?

  #7248 closed Jul 16, 2025

• Extremely poor error message when trying to erroneously mutate a StructuredBuffer

  #6743 closed Jul 16, 2025

• FunctionReflection::getName returns nullptr for constructors

  #6406 closed Jul 15, 2025

• Print slangc help to stdout instead of stderr

  #6990 closed Jul 15, 2025

• `slang-generate` segfaults with `$(()...)`

  #7698 closed Jul 15, 2025

• Vulkan validation layer error: VUID-vkCmdDispatch-format-07753

  #4795 closed Jul 15, 2025

• Buffer Load

  #7746 closed Jul 15, 2025

• Replace [KnownBuiltin] string with enum-based comparisons

  #7667 closed Jul 15, 2025

• [CBP] Ensure stdlib functions which store into a `Ptr` check if the `Ptr` is `Access::ReadWrite`

  #7713 closed Jul 15, 2025

• Slangd crashes a few seconds after loading this shader

  #7749 closed Jul 15, 2025

• Reflection API - binding index and binding space flipped for ParameterBlocks

  #7747 closed Jul 14, 2025

• GLSL matrix vector multiply operator (*) overloads do not work anymore

  #7744 closed Jul 14, 2025

• Extend surf1Dwrite_convert

  #7752 closed Jul 14, 2025

• Add WorkgroupCount and allow WorkgroupCount and WorkgroupSize in mesh shader

  #7733 closed Jul 12, 2025

• Pointer member access validation error

  #7654 closed Jul 12, 2025

• Enable (at least a sub-set of) CoopVec tests that are disabled

  #7705 closed Jul 12, 2025

• Compiler segfault with Ptr<T> extension referring to This

  #7656 closed Jul 12, 2025

• Unnecessary Int64 spirv capability usage when using pointers.

  #7562 closed Jul 12, 2025

• DebugGlobalVariable instructions are missing from SPIR-V output

  #7684 closed Jul 12, 2025

• Metal compute shader compilation segfaults when certain pattern is used

  #7199 closed Jul 11, 2025

• Slang produces IEEE754 non-compliant code even in precise mode

  #7265 closed Jul 11, 2025

24 Issues opened by 15 people

• Help LLM track IR inst creation during debugging

  #7819 opened Jul 18, 2025

• Handle noperspective modifier on sv_barycentrics input for SPIRV emitter

  #7816 opened Jul 18, 2025

• Impossible to create VK_DESCRIPTOR_TYPE_STORAGE_IMAGE properly

  #7805 opened Jul 17, 2025

• Enable Claude for other repos

  #7796 opened Jul 16, 2025

• Rename `Slang::Session` to `Slang::GlobalSession`

  #7793 opened Jul 16, 2025

• slang-test should handle better when the test file is not inside of `tests/` directory

  #7791 opened Jul 16, 2025

• Improve the slang-test coverage for the memory pointer tests on Metal

  #7789 opened Jul 16, 2025

• Casting sub-type to super-type (interface-to-interface) for use with a non `in` parameter is an internal-error

  #7788 opened Jul 16, 2025

• Plan next Virtual Community Meetup

  #7786 opened Jul 16, 2025

• Explore creating a Slang AI assistant

  #7784 opened Jul 16, 2025

• enums cannot be used as array indices without explicit cast

  #7783 opened Jul 16, 2025

• Investigate data-flow based dynamic-dispatch

  #7782 opened Jul 16, 2025

• Use stdout for `-dump-ir` rather than stderr

  #7776 opened Jul 15, 2025

• Allow comments in expected-failure file

  #7775 opened Jul 15, 2025

• Sometimes `-target metallib` prints binary result not text

  #7774 opened Jul 15, 2025

• slangc segfaults if -separate-debug-info is specified and -target is glsl, hlsl, dxbc, dxil, or cpp

  #7773 opened Jul 15, 2025

• [CBP] Disallow `const T*` and `T* const`

  #7766 opened Jul 15, 2025

• HitObject.Invoke is mis-defined in Slang

  #7762 opened Jul 15, 2025

• Fiddle "scraper" approach interacts poorly with intellisense

  #7760 opened Jul 14, 2025

• Language server takes a long time to respond to requests

  #7758 opened Jul 14, 2025

• Slang compilation aborted due to an exception of class Slang::InternalError: assert failure: The key already exists in Dictionary.

  #7748 opened Jul 13, 2025

• Variables declared with `let` do not show debugging information

  #7741 opened Jul 12, 2025

• Mesh shader reflection information missing when using -reflection-json

  #7736 opened Jul 12, 2025

• Add `GLSL_NV_cooperative_vector` support

  #7727 opened Jul 11, 2025

48 Unresolved conversations

Sometimes conversations happen on old items that aren’t yet closed. Here is a list of all the Issues and Pull Requests with unresolved conversations.

• Lower int/uint/bool matrices to arrays for SPIRV

  #7687 commented on Jul 18, 2025 • 34 new comments

• Fix #7574 - Transform struct parameters to ConstRef for CUDA code gen…

  #7607 commented on Jul 18, 2025 • 10 new comments

• Added access to string literals content for any target

  #7496 commented on Jul 18, 2025 • 5 new comments

• 1D surface writes don't work

  #7570 commented on Jul 17, 2025 • 0 new comments

• Some Slang examples are failed in Mac

  #7708 commented on Jul 17, 2025 • 0 new comments

• cuda test enablement burndown tracker

  #7723 commented on Jul 17, 2025 • 0 new comments

• Link against IR for UnsafeForceInlineEarly functions, rather than re-emit

  #6913 commented on Jul 17, 2025 • 0 new comments

• `ref` accessor does not propagate a returned "ref" in non-SPIR-V targets

  #7641 commented on Jul 17, 2025 • 0 new comments

• On Linux, libslang-glslang.so, libslang-glsl-module.so, and libslang-llvm.so are missing SONAMEs

  #7722 commented on Jul 17, 2025 • 0 new comments

• Unconditionally emit the DebugBuildIdentifier instruction

  #7365 commented on Jul 17, 2025 • 0 new comments

• Metal unused global buffer not pruned

  #6427 commented on Jul 17, 2025 • 0 new comments

• SPIRV and Metal `TextureBufferType` support

  #4435 commented on Jul 17, 2025 • 0 new comments

• Metal issues with RWTexture objects of certain formats

  #7558 commented on Jul 17, 2025 • 0 new comments

• DebugLocalVariable instruction missing for parameter of the entry point function

  #7693 commented on Jul 18, 2025 • 0 new comments

• Slang compilation aborted with error 99999 for hull shader (Vulkan/SPIR-V)

  #7000 commented on Jul 18, 2025 • 0 new comments

• Request: Please include version numbers in library names to help with ABI issues

  #7694 commented on Jul 18, 2025 • 0 new comments

• Fix#6784 - Add diagnostic for for-loop update expressions with no effect

  #6832 commented on Jul 11, 2025 • 0 new comments

• Add slang-ast files to gitignore

  #6901 commented on Jul 14, 2025 • 0 new comments

• [SP024] Implement `some` keyword

  #7229 commented on Jul 18, 2025 • 0 new comments

• slang: Add support for casting associate types

  #7428 commented on Jul 16, 2025 • 0 new comments

• Unconditionally emit the DebugBuildIdentifier

  #7531 commented on Jul 17, 2025 • 0 new comments

• Add matrix select intrinsic

  #7566 commented on Jul 11, 2025 • 0 new comments

• Fix debug info for entry point parameters

  #7703 commented on Jul 17, 2025 • 0 new comments

• Fix build with SLANG_USE_SYSTEM_SPIRV_HEADERS=TRUE

  #7718 commented on Jul 14, 2025 • 0 new comments

• Reflection system misreports `boolX` layout on CUDA

  #7441 commented on Jul 14, 2025 • 0 new comments

• Lower integer/bool matrix types to arrays of vectors on targets without native support.

  #4386 commented on Jul 14, 2025 • 0 new comments

• [SP024]Initial support for `some` keyword

  #7144 commented on Jul 14, 2025 • 0 new comments

• [CBP] Frontend for pointer access

  #7628 commented on Jul 15, 2025 • 0 new comments

• [CBP] Support casting between pointers

  #7631 commented on Jul 15, 2025 • 0 new comments

• [CBP] Support for coherent cooperative matrix & cooperative vector

  #7634 commented on Jul 15, 2025 • 0 new comments

• [CBP] Support for coherent buffers and textures

  #7630 commented on Jul 15, 2025 • 0 new comments

• [CBP] Support for coherent workgroup memory

  #7633 commented on Jul 15, 2025 • 0 new comments

• [CBP] Add documentation to explain coherent operations and new `Ptr` arguments

  #7642 commented on Jul 15, 2025 • 0 new comments

• Build fails with `SLANG_USE_SYSTEM_SPIRV_HEADERS=TRUE`

  #7643 commented on Jul 15, 2025 • 0 new comments

• Cannot use different push constants for different entry points

  #7151 commented on Jul 15, 2025 • 0 new comments

• C++ compiler warning `*.slang` source locations are sometimes incorrect

  #7647 commented on Jul 15, 2025 • 0 new comments

• Avoid requiring Developer-mode on Windows for DX12 test

  #6819 commented on Jul 15, 2025 • 0 new comments

• (NSM) Initial MLP Proposal

  #7617 commented on Jul 16, 2025 • 0 new comments

• [CBP] Disallow `globallycoherent T*` and `coherent T*`

  #7635 commented on Jul 16, 2025 • 0 new comments

• Explore compute subdir

  #7672 commented on Jul 16, 2025 • 0 new comments

• [CBP] Create formal proposal for adding coherent operations through pointers

  #7408 commented on Jul 16, 2025 • 0 new comments

• Fix subset of failing Vulkan `CoopVec` tests

  #7715 commented on Jul 16, 2025 • 0 new comments

• Metal: Add support for `SV_Barycentrics`

  #6785 commented on Jul 16, 2025 • 0 new comments

• Structured buffer `GetDimensions` is not properly implemented for Metal

  #7011 commented on Jul 16, 2025 • 0 new comments

• 64-bit integer intrinsics support on metal

  #6877 commented on Jul 16, 2025 • 0 new comments

• Overhaul user-defined override system for higher-order operators (e.g. `fwd_diff`)

  #6486 commented on Jul 16, 2025 • 0 new comments

• Metal: Invalid MSL for RWByteAddressBuffer.Store

  #7534 commented on Jul 16, 2025 • 0 new comments

• CUDA issues with texture reads and surface writes

  #7557 commented on Jul 17, 2025 • 0 new comments