[all-commits] [llvm/llvm-project] 475ff3: [DTLTO][Clang] Add support for Integrated Distribu...

[bd1976bris via All-commits]

  Branch: refs/heads/release/21.x
  Home:   https://github.com/llvm/llvm-project
  Commit: 475ff348f1e9daff90a71fa8701a870c3dc6323f
      https://github.com/llvm/llvm-project/commit/475ff348f1e9daff90a71fa8701a870c3dc6323f
  Author: bd1976bris <Ben.Dunbobbin at sony.com>
  Date:   2025-07-24 (Thu, 24 Jul 2025)

  Changed paths:
    M clang/docs/ThinLTO.rst
    M clang/include/clang/Driver/Options.td
    M clang/lib/Driver/ToolChains/CommonArgs.cpp
    A clang/test/Driver/DTLTO/dtlto.c
    M cross-project-tests/dtlto/ld-dtlto.c

  Log Message:
  -----------
  [DTLTO][Clang] Add support for Integrated Distributed ThinLTO (#147265)

This patch introduces support for Integrated Distributed ThinLTO (DTLTO)
in Clang.

DTLTO enables the distribution of ThinLTO backend compilations via
external distribution systems, such as Incredibuild, during the
traditional link step: https://llvm.org/docs/DTLTO.html.

Testing:
- `lit` test coverage has been added to Clang's Driver tests.
- The DTLTO cross-project tests will use this Clang support.

For the design discussion of the DTLTO feature, see:
  https://github.com/llvm/llvm-project/pull/126654

(cherry picked from commit 5004c59803fdeb3389d30439a6cc8b1ff874df0c)



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