[all-commits] [llvm/llvm-project] a5f501: [HLSL][DXIL] Implement `asdouble` intrinsic (#114847)

[Finn Plummer via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: a5f501e347f66d66818fba5aa7dbc25a07299ca5
      https://github.com/llvm/llvm-project/commit/a5f501e347f66d66818fba5aa7dbc25a07299ca5
  Author: Finn Plummer <50529406+inbelic at users.noreply.github.com>
  Date:   2024-11-22 (Fri, 22 Nov 2024)

  Changed paths:
    M clang/include/clang/Basic/Builtins.td
    M clang/lib/CodeGen/CGBuiltin.cpp
    M clang/lib/Headers/hlsl/hlsl_intrinsics.h
    M clang/lib/Sema/SemaHLSL.cpp
    A clang/test/CodeGenHLSL/builtins/asdouble.hlsl
    A clang/test/SemaHLSL/BuiltIns/asdouble-errors.hlsl
    M llvm/include/llvm/IR/IntrinsicsDirectX.td
    M llvm/lib/Target/DirectX/DXIL.td
    M llvm/lib/Target/DirectX/DirectXTargetTransformInfo.cpp
    A llvm/test/CodeGen/DirectX/asdouble.ll

  Log Message:
  -----------
  [HLSL][DXIL] Implement `asdouble` intrinsic (#114847)

- define intrinsic as builtin in Builtins.td
- link intrinsic in hlsl_intrinsics.h
- add semantic analysis to SemaHLSL.cpp
- lower to `llvm` or a `dx` intrinsic when applicable in CGBuiltin.cpp
- define DXIL intrinsic in IntrinsicsDirectX.td
- add DXIL op and mapping in DXIL.td
- enable scalarization of intrinsic

- add basic sema checking to asdouble-errors.hlsl
    
 Resolves #99081



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