mirror of
https://github.com/llvm/llvm-project.git
synced 2025-04-16 01:46:36 +00:00
631769f2a0
If we have an absolute address whose high bits are known to be a sign extend of the low 12 bits, we can avoid emitting the LUI entirely. This is implemented in an analogous manner to the gp relative relocations - defining an internal usage relocation type. Since 12 bits (really 11 since the high bit must be zero in user code) is less than one page, all of these offsets fit in the null page. As such, the only application of these is likely to be undefined weak symbols except for embedded use cases. I'm mostly posting this for completeness sake.
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.