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449f2ca146
`clang -gz=zstd a.o` passes this option to the linker. This option compresses output debug sections with zstd and sets ch_type to ELFCOMPRESS_ZSTD. As of today, very few DWARF consumers recognize ELFCOMPRESS_ZSTD. Use the llvm::zstd::compress API with level llvm::zstd::DefaultCompression (5), which we may tune after we have more experience with zstd output. zstd has built-in parallel compression support (so we don't need to do D117853 for zlib), which is not leveraged yet. Reviewed By: peter.smith Differential Revision: https://reviews.llvm.org/D133548
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.