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0b01b96864
This fixes [issue 162148](https://github.com/llvm/llvm-project/issues/162148). Common symbols are intended to have only a single version of the data present in the final executable. The MSVC linker is able to successfully deduplicate these chunks. If you have an application with a large number of translation units with a large block of common data (this is possible, for example, with Fortran code), then failing to deduplicate these chunks can make the data size so large that the resulting executable fails to load. The logic in this patch doesn't catch all of the potential cases for deduplication, but it should catch the most common ones.
LLVM Linker (lld)
This directory and its subdirectories contain source code for the LLVM Linker, a modular cross platform linker which is built as part of the LLVM compiler infrastructure project.
lld is open source software. You may freely distribute it under the terms of the license agreement found in LICENSE.txt.
Benchmarking
In order to make sure various developers can evaluate patches over the same tests, we create a collection of self contained programs.
It is hosted at https://s3-us-west-2.amazonaws.com/linker-tests/lld-speed-test.tar.xz
The current sha256 is 10eec685463d5a8bbf08d77f4ca96282161d396c65bd97dc99dbde644a31610f.