[SPIR-V] Add SPV_EXT_descriptor_heap + SPV_KHR_untyped_pointers codegen#8517
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[SPIR-V] Add SPV_EXT_descriptor_heap + SPV_KHR_untyped_pointers codegen#8517jzakharovnv wants to merge 1 commit into
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Building off of microsoft#8281, this commit adds a native lowering via SPV_EXT_descriptor_heap and SPV_KHR_untyped_pointers. ResourceDescriptorHeap and SamplerDescriptorHeap are lowered to untyped variables decorated with ResourceHeapEXT and SamplerHeapEXT. Each heap access emits OpUntypedAccessChainKHR into a runtime array of the appropriate descriptor type. Buffer-like resources (StructuredBuffer, ByteAddressBuffer, ConstantBuffer, TextureBuffer) use OpTypeBufferEXT and OpBufferPointerEXT; image and sampler resources use OpLoad. Interlocked operations on RWTexture use OpUntypedImageTexelPointerEXT. Requires -fspv-target-env=vulkan1.3. Assisted-by: Claude.
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Building off of #8281, this PR adds a native lowering via SPV_EXT_descriptor_heap and SPV_KHR_untyped_pointers and is part 1/4 in a series.
ResourceDescriptorHeap and SamplerDescriptorHeap are lowered to untyped variables decorated with ResourceHeapEXT and SamplerHeapEXT. Each heap access emits OpUntypedAccessChainKHR into a runtime array of the appropriate descriptor type. Buffer-like resources (StructuredBuffer, ByteAddressBuffer, ConstantBuffer, TextureBuffer) use OpTypeBufferEXT and OpBufferPointerEXT; image and sampler resources use OpLoad. Interlocked operations on RWTexture use OpUntypedImageTexelPointerEXT.
Requires -fspv-target-env=vulkan1.3.
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