[llvm] [DTLTO][LLVM] Integrated Distributed ThinLTO (DTLTO) (PR #127749)

[Steven Wu via llvm-commits]

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+===================
+DTLTO
+===================
+.. contents::
+   :local:
+   :depth: 2
+
+.. toctree::
+   :maxdepth: 1
+
+Distributed ThinLTO (DTLTO)
+===========================
+
+Distributed ThinLTO (DTLTO) facilitates the distribution of backend ThinLTO
+compilations via external distribution systems such as Incredibuild.
+
+The existing method of distributing ThinLTO compilations via separate thin-link,
+backend compilation, and link steps often requires significant changes to the
+user's build process to adopt, as it requires using a build system which can
+handle the dynamic dependencies specified by the index files, such as Bazel.
+
+DTLTO eliminates this need by managing distribution internally within the LLD
+linker during the traditional link step. This allows DTLTO to be used with any
+build process that supports in-process ThinLTO.
+
+Limitations
+-----------
+
+The current implementation of DTLTO has the following limitations:
----------------
cachemeifyoucan wrote:

I feel like this should be a TODO list since the items on the list are all doable, thus not limitation by design.

https://github.com/llvm/llvm-project/pull/127749