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This prevents useless spills to the same memory region from causing spilling to take too many passes to converge. Handling this at spilling time allows us to relax the generation of spill sections; specifically, multiple spills can now be generated per output section. This should be fairly benign for performance, and it would eventually allow linker scripts to express things like holes or minimum addresses for parts of output sections. The linker could then spill within an output section whenever address constraints are violated.
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
.