[all-commits] [llvm/llvm-project] e60ebb: [HLSL] implementation of lerp intrinsic (#83077)

[Farzon Lotfi via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: e60ebbd0001f2e66cb9f76874ddd69290e2086c1
      https://github.com/llvm/llvm-project/commit/e60ebbd0001f2e66cb9f76874ddd69290e2086c1
  Author: Farzon Lotfi <1802579+farzonl at users.noreply.github.com>
  Date:   2024-02-29 (Thu, 29 Feb 2024)

  Changed paths:
    M clang/include/clang/Basic/Builtins.td
    M clang/include/clang/Basic/DiagnosticSemaKinds.td
    M clang/lib/CodeGen/CGBuiltin.cpp
    M clang/lib/Headers/hlsl/hlsl_intrinsics.h
    M clang/lib/Sema/SemaChecking.cpp
    A clang/test/CodeGenHLSL/builtins/lerp-builtin.hlsl
    A clang/test/CodeGenHLSL/builtins/lerp.hlsl
    M clang/test/SemaHLSL/BuiltIns/dot-errors.hlsl
    A clang/test/SemaHLSL/BuiltIns/lerp-errors.hlsl
    M llvm/include/llvm/IR/IntrinsicsDirectX.td

  Log Message:
  -----------
  [HLSL] implementation of lerp intrinsic (#83077)

This is the start of implementing the lerp intrinsic
https://learn.microsoft.com/en-us/windows/win32/direct3dhlsl/dx-graphics-hlsl-lerp
Builtins.td - defines the builtin
hlsl_intrinsics.h - defines the lerp api
DiagnosticSemaKinds.td - needed a new error to be inclusive for more
than two operands.
CGBuiltin.cpp - add the lerp intrinsic lowering
SemaChecking.cpp - type checks for lerp builtin
IntrinsicsDirectX.td - define the lerp intrinsic

this change implements the first half of #70102

Co-authored-by: Xiang Li <python3kgae at outlook.com>



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