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564481aebe
Changed ThreadPoolExecutor to no longer use detached threads and instead to join threads on destruction. This is to prevent intermittent crashing on Windows when doing a normal full exit, e.g. via exit(). Changed ThreadPoolExecutor to be a ManagedStatic so that it can be stopped on llvm_shutdown(). Without this, it would only be stopped in the destructor when doing a full exit. This is required to avoid intermittent crashing on Windows due to a race condition between the ThreadPoolExecutor starting up threads and the process doing a fast exit, e.g. via _exit(). The Windows crashes appear to only occur with the MSVC static runtimes and are more frequent with the debug static runtime. These changes also prevent intermittent deadlocks on exit with the MinGW runtime. Differential Revision: https://reviews.llvm.org/D70447
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.