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* Update SPIRV-Tools and fix new validation errors.
* Implement pointers for glsl target.
* Reworked packStorage/unpackStorage code gen to operate on pointers rather than values.
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* Reimplement the GLSL atomic* functions in terms of __intrinsic_op
Many of these functions map directly to atomic IR instructions.
The functions taking atomic_uint are left as they are.
This helps to address #5989, since the destination pointer type validation can then be
written only for the atomic IR instructions.
* Add validation for atomic operations
Diagnose an error if the destination of the atomic operation is not appropriate, where
appropriate means it's either:
- 'groupshared'
- from a device buffer
This closes #5989.
* Add tests for GLSL atomics destination validation
Attempting to use the GLSL atomic functions on destinations that are neither groupshared
nor from a device buffer should fail with the following error:
error 41403: cannot perform atomic operation because destination is neither groupshared
nor from a device buffer.
* Validate atomic operations after address space specialization
Address space specialization for SPIR-V is not done as part of `linkAndOptimizeIR`, as it
is for e.g. Metal, so opt out and add a separate call for SPIR-V.
* Allow unchecked in/inout parameters for non-SPIRV targets
* Clean up callees left without uses during address space specialziation
* format code
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Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>
Co-authored-by: Yong He <yonghe@outlook.com>
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* Allow glsl set and binding layout qualifiers to be compile time integer exprs
* add new tests
* add comments
* cleanup on asserts
* addressed review comments and cleanup
* fix missing set expr in test
* fixed tests and cleanup
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Co-authored-by: Yong He <yonghe@outlook.com>
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extension(s); resolves #3587 for GLSL & SPIR-V targets (#3755)
The following commit implements atomic operations & types associated with OpenGL 4.6, GL_EXT_vulkan_glsl_relaxed, GLSL_EXT_shader_atomic_float, GLSL_EXT_shader_atomic_float2, for GLSL & SPIR-V targets.
Fully implements all functions, and built-in type's, resolves https://github.com/shader-slang/slang/issues/3560 for GLSL & SPRI-V targets.
[Atomic extensions for GLSL can be found here](https://github.com/KhronosGroup/GLSL/tree/main)
Notes of worth:
* atomic_uint is well defined in GLSL->OpenGL, although was removed in GLSL->VK unless a compiler extension is supported (GL_EXT_vulkan_glsl_relaxed). This support entails transforming all atomic_uint operations and references into a storage buffer. SPIR-V has AtomicCounter+AtomicStorage (atomic_uint parallel) but does not implement these capabilities for SPIR-V->VK in any scenario. Due to the case we transform atomic_uint ourselves (GLSL_Syntax->Slang_IR) to accommodate transforming atomic_uint into valid syntax.
* GLSL_EXT_shader_atomic_float2 (all float16_t & some float/double operations) support is minimal and worth watching out for if enabling the tests.
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