mirror of https://github.com/capstone-engine/llvm-capstone.git synced 2024-11-28 08:02:08 +00:00

History

Rui Ueyama c9c34bdc1a Do not use a hash table to uniquify mergeable strings. Previously, we have a hash table containing strings and their offsets to manage mergeable strings. Technically we can live without that, because we can do binary search on a vector of mergeable strings to find a mergeable strings. We did have both the hash table and the binary search because we thought that that is faster. We recently observed that lld tend to consume more memory than gold when building an output with debug info. A few percent of memory is consumed by the hash table. So, we needed to reevaluate whether or not having the extra hash table is a good CPU/memory tradeoff. I run a few benchmarks with and without the hash table. I got a mixed result for the benchmark. We observed a regression for some programs by removing the hash table (that's what we expected), but we also observed that performance imrpovements for some programs. This is perhaps due to reduced memory usage. Differential Revision: https://reviews.llvm.org/D55234 llvm-svn: 348401		2018-12-05 19:13:31 +00:00
..
cmake/modules
COFF	[PDB] Emit S_UDT records in LLD.	2018-12-04 21:48:46 +00:00
Common	Set MAttrs in LTO mode	2018-11-01 20:02:49 +00:00
docs	[WebAssembly] Update docs	2018-11-29 02:55:25 +00:00
ELF	Do not use a hash table to uniquify mergeable strings.	2018-12-05 19:13:31 +00:00
include/lld	Remove SaveAndRestore and SmallVectorImpl from lld/Common/LLVM.h. NFC.	2018-11-27 17:54:15 +00:00
lib	Fix clang -Wimplicit-fallthrough warnings across llvm, NFC	2018-11-01 19:54:45 +00:00
MinGW	[MinGW] Pass libpath to the COFF linker	2018-10-10 09:00:03 +00:00
test	[PDB] Emit S_UDT records in LLD.	2018-12-04 21:48:46 +00:00
tools/lld	Fix typo in error message. NFC.	2018-09-13 15:37:13 +00:00
unittests
utils
wasm	[WebAssembly] Don't set a maximum size when importing the table	2018-12-03 22:37:55 +00:00
.arcconfig
.clang-format
.gitignore
CMakeLists.txt
CODE_OWNERS.TXT
LICENSE.TXT
README.md

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.