After ICF, multiple symbols may resolve to the same address but remain as distinct Symbol pointers. When used as keys in thunkMap, this caused redundant branch-extension thunks to be created for the same target. Fix this by providing a custom DenseMapInfo for thunkMap that hashes and compares Defined symbols by (isec, value) instead of pointer identity.
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.