[milestone] Compile a broad selection of compute shaders

[damyanp]

This is a milestone on the way to getting full HLSL support in Clang.

For this milestone we need to have enough features working in Clang that we can compile a broad selection of compute shaders, they pass the validator, and we can convince ourselves that the built shaders work correctly.

We can use the DML suite of shaders as a starting point, but we may identify other shaders that are worth testing.

The work items listed here are expected to be fully completed - even if that means doing more than the bare minimum required to pass this milestone.

Workstreams

Validation (#170)

• On demand parsing for clang-11 llvm-project#116
• LLDB misses the const method qualifier on Windows llvm-project#117
  • clang 10.0.0_rc1 standalone fails to build with polly llvm-project#120
• clangd .clang-format custom location llvm-project#118
  • Extracting llvm-project-9.0.1.tar.xz into an external storage device llvm-project#119
  • [clang] add additional test for run-clang-tidy llvm-project#121

Language (#21)

• Identify remaining language features for DirectML
• [HLSL] vector subscript indexing llvm-project#91640
• [HLSL] Copy in/copy out parameter passing llvm-project#87526 (out and inout keywords)
• HLSL initializer list support llvm-project#56067
• [HLSL] Crash using array parameters llvm-project#125743
• [HLSL] [branch] attribute support for switch statements llvm-project#125754

Tooling (#22)

• [HLSL][clang-format] Add Language Mode for HLSL llvm-project#126257

Resource Binding (#23)

• [HLSL] Implement implicit resource binding llvm-project#110722
• [HLSL] Diagnose overlapping resource bindings llvm-project#110723

Root Signatures (#24)

• [HLSL] Root Signature support (non-library) llvm-project#119032
  • [HLSL] Add support for Root Signatures in Clang llvm-project#118896
    • [HLSL] Implement the Root Signature parser llvm-project#120472
    • [HLSL] Generate Root Signature metadata from AST llvm-project#119014
    • [HLSL] Generate AST for Root Signatures llvm-project#119011
    • [HLSL] Semantic analysis of HLSLRootSignature llvm-project#119019
    • [HLSL] Update RootSignatures-AST.hlsl to have full sample testcase once parser is complete llvm-project#124595
  • [HLSL] Add Root Signatures into DX Container llvm-project#118897
    • [HLSL] Disassemble DX Container Root Signatures llvm-project#121493
    • [HLSL] Construct Root Signature data structures from LLVM IR metadata llvm-project#121487
    • [HLSL] Validate Root Signature data structures during DXContainer generation llvm-project#121491
    • [HLSL] Add Root Signatures in DX Container llvm-project#121492
• [HLSL] Add support for "rootsig" targets llvm-project#99523

Semantics (#25)

• Clang + -fms-extensions: __FUNCSIG__ is not a literal llvm-project#114
• Support all compute semantics and lowering to DXIL ops
• [WIN32] Only set the foreground console colour llvm-project#129
• Incorrect non-portable path warning. llvm-project#130
• Is Zen/+ APU determined to be znver1? llvm-project#131
• Add a new feature about RISCV target llvm-project#132
• faild build musl aarch64 target with -frounding-math llvm-project#133
• Memory Leak llvm-project#134
• Update a link in Linalg.md documentation llvm-project#135
• Installation script can't find file llvm-project#136
• exclude path in scan build llvm-project#137
• maybe --start-address and --stop-address dont work when i attach --macho or -m options on commandline llvm-project#138
• memalign report mistake llvm-project#139

Intrinsics (#28)

• Vis debug llvm-project#30

DXIL Shader Flags (#57)

• [DirectX] Implement Shader Flag Analysis to collect properties of DML shaders llvm-project#113505

Resources (#8)

• ConstantBuffer<T> support #109
• ByteAddressBuffer support #10
• Analysis based resource properties #333
• Handling of locally scoped resources references #125
• Resource dimension APIs for buffer resources #126
• Support arrays of resources #127
• Support dynamic resources #128

note: I've put a lot in the compute shaders milestone for now - it may make sense to shuffle some of this around.

DirectX Container (#9)

• Add Root Signature part
• Generated container can be signed through DXV
• Generate full PSV0 part for compute shaders llvm-project#96674