KhronosGroup/glslang

Issues somebody may already be working on are listed last. List everything by date

• Versions.cpp: std::size() passed to int numExtensions parameters narrows, warning C4267 and breaking /WX builds

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  Difficulty 1/5 Under an hour Newbie friendliness 82/100

  KhronosGroup/glslang#4469 · Opened Oct 14, 2026

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• GL_EXT_structured_descriptor_heap shader produces invalid spirv

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  bug Descriptor Heaps

  Difficulty 4/5 3-5 days Newbie friendliness 45/100

  KhronosGroup/glslang#4441 · 1 comment · Opened Sep 23, 2026

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• GL_EXT_structured_descriptor_heap using Int8 instead of OffsetIdEXT

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  Descriptor Heaps

  Difficulty 4/5 3-5 days Newbie friendliness 45/100

  KhronosGroup/glslang#4402 · Opened Sep 1, 2026

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• GLSL_EXT_structured_descriptor_heap with scalar produces nonsense with no warning/error

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  Descriptor Heaps

  Difficulty 4/5 3-5 days Newbie friendliness 45/100

  KhronosGroup/glslang#4401 · 5 comments · Opened Sep 1, 2026

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• GLSL_EXT_structured_descriptor_heap is missing descriptor_size tests

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  Descriptor Heaps

  Difficulty 2/5 1-3 hours Newbie friendliness 70/100

  KhronosGroup/glslang#4400 · Opened Sep 1, 2026

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• GLSL_EXT_structured_descriptor_heap doesn't prevent invalid stores

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  bug Descriptor Heaps

  Difficulty 3/5 1-2 days Newbie friendliness 65/100

  KhronosGroup/glslang#4399 · Opened Sep 1, 2026

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• Should `GLSL_EXT_structured_descriptor_heap` blocks allow omitting block/instance names?

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  Descriptor Heaps question

  Difficulty 4/5 3-5 days Newbie friendliness 38/100

  KhronosGroup/glslang#4367 · 1 comment · Opened Aug 3, 2026

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• Probably invalid SPIR-V when using Vulkan relaxed mode

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  bug relaxed

  Difficulty 4/5 3-5 days Newbie friendliness 48/100

  KhronosGroup/glslang#4340 · Opened Jul 16, 2026

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• Hope the GLSL programming language supports Unicode identifiers.

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  enhancement GLSL/ESSL

  Difficulty 5/5 Over a week Newbie friendliness 25/100

  KhronosGroup/glslang#4323 · 1 comment · Opened Jun 30, 2026

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• GL_EXT_descriptor_heap 2D array not handled correctly

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  Descriptor Heaps

  Difficulty 4/5 3-5 days Newbie friendliness 48/100

  KhronosGroup/glslang#4318 · 1 comment · Opened Jun 28, 2026

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• Wrong type in error message (ray tracing, acceleration structure)

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  Difficulty 4/5 3-5 days Newbie friendliness 45/100

  KhronosGroup/glslang#4305 · Opened Jun 18, 2026

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• Duplicated Debug Info using the C Interface

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  Difficulty 4/5 3-5 days Newbie friendliness 45/100

  KhronosGroup/glslang#4299 · 1 comment · Opened Jun 11, 2026

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• Inconsistency in include paths when glslang is used as a submodule or as an installed cmake library

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  question

  Difficulty 3/5 1-2 days Newbie friendliness 35/100

  KhronosGroup/glslang#4298 · 1 comment · Opened Jun 10, 2026

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• for (uint x = 0; x < sz.x++ x) caused shaderc to crash

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  bug HLSL

  Difficulty 3/5 1-2 days Newbie friendliness 65/100

  KhronosGroup/glslang#4292 · Opened Jun 5, 2026

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• Null Pointer Dereference in glslang GLSL Parser

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  Difficulty 3/5 1-2 days Newbie friendliness 72/100

  KhronosGroup/glslang#4287 · Opened May 27, 2026

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• Use of uninitialized stack memory in GLSL swizzle parser

  May be free again @arcady-lunarg claimed this 130 days ago, and no pull request is open. Open

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  bug GLSL/ESSL

  KhronosGroup/glslang#4281 · 1 comment · 1 assignee · Opened May 20, 2026

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• ShaderDebugInfo is broken with GL_EXT_descriptor_heap

  May be free again @arcady-lunarg claimed this 47 days ago, and no pull request is open. Open

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  Descriptor Heaps ShaderDebugInfo

  KhronosGroup/glslang#4255 · 2 comments · 1 assignee · Opened May 6, 2026

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• OpName is wrong when using GL_EXT_descriptor_heap

  May be free again @arcady-lunarg claimed this 78 days ago, and no pull request is open. Open

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  Descriptor Heaps

  KhronosGroup/glslang#4254 · 1 assignee · Opened May 6, 2026

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• -gVS drops DebugSource for included files when the include contributes only macros or otherwise unused code

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  ShaderDebugInfo

  Difficulty 3/5 1-2 days Newbie friendliness 68/100

  KhronosGroup/glslang#4219 · 1 comment · Opened Apr 15, 2026

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• enabling debug info results in a crash when compiling a raygen shader using SER

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  ShaderDebugInfo

  Difficulty 3/5 1-2 days Newbie friendliness 65/100

  KhronosGroup/glslang#4213 · Opened Apr 12, 2026

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• Inconsistent precision propagation constructors

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  Difficulty 4/5 3-5 days Newbie friendliness 55/100

  KhronosGroup/glslang#4211 · Opened Apr 6, 2026

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• RFC: Deprecate and ultimately remove the HLSL front-end

  May be free again @dnovillo claimed this 191 days ago, and no pull request is open. Open

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  KhronosGroup/glslang#4210 · 25 comments · 7 reactions · 1 assignee · Opened Apr 6, 2026

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• Emit `OpInBoundsAccessChain` for GLSL shaders reading arrays/etc

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  Difficulty 3/5 1-2 days Newbie friendliness 72/100

  KhronosGroup/glslang#4206 · Opened Apr 3, 2026

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• DebugTypeArray emitted with OpSpecConstantOp dimension violates NonSemantic.Shader.DebugInfo.100 spec

  May be free again @dnovillo claimed this 218 days ago, and no pull request is open. Open

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  ShaderDebugInfo Specification

  KhronosGroup/glslang#4186 · 3 comments · 1 assignee · Opened Mar 10, 2026

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• Build interface include path for `glslang/SPIRV/*` inconsistent with install layout

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  Difficulty 3/5 1-2 days Newbie friendliness 45/100

  KhronosGroup/glslang#4185 · Opened Mar 10, 2026

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• Should enabling extensions raise errors ?

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  bug GLSL/ESSL

  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  KhronosGroup/glslang#4179 · 2 comments · Opened Mar 2, 2026

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• Compilation issues inside a C++ module

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  Difficulty 4/5 3-5 days Newbie friendliness 30/100

  KhronosGroup/glslang#4176 · 1 comment · Opened Feb 28, 2026

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• Invalid `const` buffer reference function parameter allowed (crashes driver)

  May be free again @arcady-lunarg claimed this 248 days ago, and no pull request is open. Open

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  GLSL/ESSL sev:miscompile SPIR-V

  KhronosGroup/glslang#4156 · 1 assignee · Opened Jan 21, 2026

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• Support a relaxed casting mode

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  enhancement Specification

  Difficulty 5/5 Over a week Newbie friendliness 25/100

  KhronosGroup/glslang#4148 · 1 comment · Opened Jan 16, 2026

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• Use of `gl_PrimitiveID` in fragment shader should not always imply "Geometry" capability

  May be free again @arcady-lunarg claimed this 271 days ago, and no pull request is open. Open

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  bug sev:miscompile Specification SPIR-V

  KhronosGroup/glslang#4147 · 5 comments · 1 assignee · Opened Jan 14, 2026

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• Glsl/GlslNonSemanticShaderDebugInfoSpirv13Test.FromFile/spv_debuginfo_coopmatKHR_comp fails on ppc64

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  bug ShaderDebugInfo

  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  KhronosGroup/glslang#4145 · 1 comment · Opened Jan 13, 2026

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• glslangValidator compiles glsl in to spirv ok but spirv-val throws errors

  May be free again @arcady-lunarg claimed this 270 days ago, and no pull request is open. Open

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  bug sev:miscompile SPIR-V

  KhronosGroup/glslang#4144 · 1 comment · 1 assignee · Opened Jan 13, 2026

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• SPIR-V validation error when using dFdx/dFdy on float16_t type

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  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  KhronosGroup/glslang#4143 · 1 comment · Opened Jan 13, 2026

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• Stop generating the GLSLstd450Radians and GLSLstd450Degrees instructions

  May be free again @arcady-lunarg claimed this 245 days ago, and no pull request is open. Open

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  enhancement SPIR-V

  KhronosGroup/glslang#4133 · 1 assignee · Opened Dec 23, 2025

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• buffer_reference incorrectly bypasses SPIR-V binding check when declaring blocks

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  bug GLSL/ESSL SPIR-V

  Difficulty 3/5 1-2 days Newbie friendliness 48/100

  KhronosGroup/glslang#4128 · Opened Dec 15, 2025

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• [Feature Request] offsetof

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  enhancement GLSL/ESSL

  Difficulty 5/5 Over a week Newbie friendliness 20/100

  KhronosGroup/glslang#4127 · 3 comments · Opened Dec 15, 2025

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• Glslang doesn't build spv code with RelaxedPrecision

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  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  KhronosGroup/glslang#4121 · 1 comment · Opened Dec 9, 2025

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• Extension preprocessor order is not enforced

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  bug GLSL/ESSL

  Difficulty 4/5 3-5 days Newbie friendliness 43/100

  KhronosGroup/glslang#4101 · Opened Nov 19, 2025

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• GL_ARB_ES3_1_compatibility extension not supported

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  enhancement GLSL/ESSL

  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  KhronosGroup/glslang#4098 · 2 comments · Opened Nov 17, 2025

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• [compile_fuzzer] Crashing case in `addBinaryMath`

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  Difficulty 3/5 1-2 days Newbie friendliness 48/100

  KhronosGroup/glslang#4094 · Opened Nov 13, 2025

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• [oss-fuzz compile_fuzzer] Crashing case of assertion `arraySizes != nullptr1` failed in `updateArraySizes`

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  Difficulty 3/5 1-2 days Newbie friendliness 48/100

  KhronosGroup/glslang#4092 · Opened Nov 13, 2025

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• Why is 'nointerpolation' applied to 'double' types and default interpolation set for FS inputs but not VS outputs?

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  question

  Difficulty 5/5 Over a week Newbie friendliness 25/100

  KhronosGroup/glslang#4087 · 1 comment · Opened Nov 10, 2025

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• Not putting runtime arrays at the end of Buffer Reference blocks

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  bug SPIR-V

  Difficulty 3/5 1-2 days Newbie friendliness 48/100

  KhronosGroup/glslang#4078 · Opened Oct 31, 2025

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• segmentation fault under Haiku

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  Difficulty 4/5 3-5 days Newbie friendliness 30/100

  KhronosGroup/glslang#4076 · 4 comments · Opened Oct 30, 2025

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• Request: Support for new VK_KHR_shader_fma extension? (needs a corresponding GLSL GL_KHR_shader_fma?)

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  Difficulty 5/5 Over a week Newbie friendliness 35/100

  KhronosGroup/glslang#4069 · 4 comments · Opened Oct 21, 2025

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• glslang shouldn't require that specialization constant ids must be unique

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  GLSL/ESSL Specification

  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  KhronosGroup/glslang#4064 · Opened Oct 16, 2025

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• HLSL precision propagation issue when compiling with glslang

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  bug HLSL

  Difficulty 4/5 3-5 days Newbie friendliness 45/100

  KhronosGroup/glslang#4059 · Opened Oct 9, 2025

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• Apparent C vs GLSLang preprocessor differences

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  bug PP

  Difficulty 4/5 3-5 days Newbie friendliness 42/100

  KhronosGroup/glslang#4053 · 3 comments · Opened Oct 3, 2025

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• Silent C++ runtime dependence

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  bug

  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  KhronosGroup/glslang#4046 · Opened Sep 25, 2025

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• invalid arithmetic between different enumeration types

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  Difficulty 2/5 1-3 hours Newbie friendliness 58/100

  KhronosGroup/glslang#4033 · Opened Sep 4, 2025

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