[all-commits] [llvm/llvm-project] 74a4d8: [HLSL][DirectX] Add the Qdx-rootsignature-strip dr...

[Finn Plummer via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 74a4d815dc53d583053c30edd0ac2a91e9c90b1b
      https://github.com/llvm/llvm-project/commit/74a4d815dc53d583053c30edd0ac2a91e9c90b1b
  Author: Finn Plummer <mail at inbelic.dev>
  Date:   2025-08-26 (Tue, 26 Aug 2025)

  Changed paths:
    M clang/include/clang/Driver/Action.h
    M clang/include/clang/Driver/Options.td
    M clang/lib/Driver/Action.cpp
    M clang/lib/Driver/Driver.cpp
    M clang/lib/Driver/ToolChain.cpp
    M clang/lib/Driver/ToolChains/HLSL.cpp
    M clang/lib/Driver/ToolChains/HLSL.h
    A clang/test/Driver/dxc_strip_rootsignature.hlsl

  Log Message:
  -----------
  [HLSL][DirectX] Add the Qdx-rootsignature-strip driver option (#154454)

This pr adds the `Qstrip-rootsignature` as a `DXC` driver option.

To do so, this pr introduces the `BinaryModifyJobClass` as an `Action`
to modify a produced object file before its final output.

Further, it registers `llvm-objcopy` as the tool to modify a produced
`DXContainer` on the `HLSL` toolchain.

This allows us to specify the `Qstrip-rootsignature` option to
`clang-dxc` which will invoke `llvm-objcopy` with a
`--remove-section=RTS0` argument to implement its functionality.

Resolves: https://github.com/llvm/llvm-project/issues/150275.



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