[all-commits] [llvm/llvm-project] c4c54a: [SPIRV][HLSL] map lerp to Fmix (#88976)

[Farzon Lotfi via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: c4c54af569f7c17bc89ae73c3e5c5c4be0a586b9
      https://github.com/llvm/llvm-project/commit/c4c54af569f7c17bc89ae73c3e5c5c4be0a586b9
  Author: Farzon Lotfi <1802579+farzonl at users.noreply.github.com>
  Date:   2024-04-22 (Mon, 22 Apr 2024)

  Changed paths:
    M clang/lib/CodeGen/CGBuiltin.cpp
    M clang/lib/CodeGen/CGHLSLRuntime.h
    M clang/test/CodeGenHLSL/builtins/lerp-builtin.hlsl
    M clang/test/CodeGenHLSL/builtins/lerp.hlsl
    M llvm/include/llvm/IR/IntrinsicsSPIRV.td
    M llvm/lib/Target/SPIRV/SPIRVInstructionSelector.cpp
    M llvm/test/CodeGen/SPIRV/hlsl-intrinsics/all.ll
    M llvm/test/CodeGen/SPIRV/hlsl-intrinsics/any.ll
    A llvm/test/CodeGen/SPIRV/hlsl-intrinsics/lerp.ll
    M llvm/test/CodeGen/SPIRV/hlsl-intrinsics/rcp.ll

  Log Message:
  -----------
  [SPIRV][HLSL] map lerp to Fmix (#88976)

- `clang/lib/CodeGen/CGBuiltin.cpp` - switch to using
`getLerpIntrinsic()` to abstract backend intrinsic
- `clang/lib/CodeGen/CGHLSLRuntime.h` - add `getLerpIntrinsic()` 
- `llvm/include/llvm/IR/IntrinsicsSPIRV.td` - add SPIRV intrinsic for
lerp
- `llvm/lib/Target/SPIRV/SPIRVInstructionSelector.cpp` - add mapping of
HLSL's lerp to GLSL's Fmix.

resolves #88940



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