llvm-project/lld
Jez Ng ce2ae38124 [lld-macho] Deduplicate the `__objc_classrefs` section contents
ld64 breaks down `__objc_classrefs` on a per-word level and deduplicates
them. This greatly reduces the number of bind entries emitted (and
therefore the amount of work `dyld` has to do at runtime). For
chromium_framework, this change to LLD cuts the number of (non-lazy)
binds from 912 to 190, getting us to parity with ld64 in this aspect.

Reviewed By: #lld-macho, thakis

Differential Revision: https://reviews.llvm.org/D121053
2022-03-08 08:34:04 -05:00
..
COFF [LLD] [COFF] Order .debug_* sections at the end, to avoid leaving gaps if stripped 2022-03-03 10:08:51 +02:00
Common [lld] Make error handling functions opaque 2022-02-17 11:54:57 -08:00
ELF Reland D119909 [ELF] Parallelize initializeLocalSymbols 2022-03-04 19:00:10 -08:00
MachO [lld-macho] Deduplicate the `__objc_classrefs` section contents 2022-03-08 08:34:04 -05:00
MinGW [LLD][MinGW] Add --heap argument support 2022-01-30 00:01:45 +02:00
cmake/modules [CMake] Factor out config prefix finding logic 2022-01-07 20:16:18 +00:00
docs [ELF] Support (TYPE=<value>) to customize the output section type 2022-02-17 12:10:58 -08:00
include/lld [lld] Make error handling functions opaque 2022-02-17 11:54:57 -08:00
test [lld-macho] Deduplicate the `__objc_classrefs` section contents 2022-03-08 08:34:04 -05:00
tools/lld [LLD] Fix issue in HIP due to unspecified order of evaluation of the function object 2022-02-08 19:12:15 -05:00
utils
wasm [lld][WebAssembly] Improve error reporting for bad ar archive members 2022-03-01 15:21:53 -08:00
.clang-format
.clang-tidy NFC: .clang-tidy: Inherit configs from parents to improve maintainability 2021-06-08 08:25:59 -07:00
.gitignore
CMakeLists.txt [lld] Require C++14 in LLD standalone build 2022-02-22 18:15:29 -05:00
CODE_OWNERS.TXT Add code owners of new MachO port 2020-09-02 19:32:12 -07:00
LICENSE.TXT
README.md [doc] Place sha256 in lld/README.md into backticks 2021-01-12 10:19:40 -08:00

README.md

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.