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  • 16.4.0 168d452a4f

    Release 16.4.0 Stable

    archiver-bot released this 2026-07-14 14:35:18 -05:00 | 119 commits to main since this release

    Descriptor Heap:

    • Implement GLSL_EXT_structured_descriptor_heap with SPIR-V layout generation, heap offset access, buffer references, matrix layout decorations, and correct readonly/writeonly qualifier propagation for buffer and image descriptors
    • Fix descriptor heap-bound buffer access to use typed pointers
    • Omit NonUniform decoration when using descriptor heaps, as the SPIR-V spec does not require it
    • Add --relax-set-binding-limits option to allow large layout(set) and layout(binding) values for descriptor heap-style workflows with sparse set spaces
    • Reject combined image samplers with descriptor_heap

    Compute Shader Derivatives:

    • Fix GL_KHR_compute_shader_derivatives regressions on shaders using the GL_NV variant
    • Update compute shader derivative rules to allow texture operations with implicit derivatives without extensions, falling back to LoD 0

    New Extensions:

    • Implement GL_EXT_ocp_microscaling_types
    • Implement GL_NV_cooperative_matrix_decode_vector
    • Add basic support for GL_NV_desktop_lowp_mediump
    • Implement GL_EXT_opacity_micromap_ray_query_mode

    Bug Fixes:

    • Fix generated decoration string from UTF8EncodingKHR to UTFEncodingKHR
    • Fix missing SPIR-V extension emission for float16 derivative functions with SPV_AMD_gpu_shader_half_float
    • Apply NoContraction decoration to dot() when noContraction is set
    • Fix OpStore of buffer device address pointer to use 8-byte alignment, consistent with loads
    • Fix RayTracingOpacityMicromapKHR capability emission to only occur when gl_RayFlagsForceOpacityMicromap2StateEXT is actually used, fixing SPIR-V validation failures in ray query shaders outside ray-tracing pipeline stages
    • Fix setInvertY() to apply Y-inversion to GLSL vertex, geometry, and tessellation-evaluation shaders (previously only affected HLSL)
    • Fix .length() on arrays of long/cooperative vectors to use OpArrayLength instead of a constant component count
    • Fix unnecessary cooperative matrix conversions when creating arrays of KHR cooperative matrices
    • Add error for cooperative matrix *= with bf16/fp8 scalar operands
    • Fix out-of-bounds access in elseSeen at maximum #if/#ifdef nesting depth
    • Fix out-of-bounds read on empty struct texture template types
    • Fix crash in layoutObjectCheck when accessing members of an empty block
    • Emit an error when HLSL [numthreads] is given more than three arguments instead of crashing the compiler.
    • Emit error when attempting to convert a literal string to an incompatible type
    • Fix abortKHR to preserve the original user-defined string without modification
    • Fix out-of-bounds indexing in TDefaultIoResolverBase::addStage when a negative EShLanguage value is passed

    Other:

    • Add --discard-is-terminate option to emit OpTerminateInvocation instead of OpDemoteToHelperInvocation for GLSL discard when targeting SPIR-V 1.6+
    • Add REUSE license compliance infrastructure
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