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cc539138ac
The standard libcalls for half to float and float to half conversion are __extendhfsf2 and __truncsfhf2. However, LLVM currently uses __gnu_h2f_ieee and __gnu_f2h_ieee instead. As far as I can tell, these libcalls are an ARM-ism and only provided by libgcc on that platform. compiler-rt always provides both libcalls. Use the standard libcalls by default, and only use the __gnu libcalls on ARM.
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.