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llvm-project/lld
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Reid Kleckner cc525c97b7 [COFF] Reduce the size of Chunk and SectionChunk, NFC 
Summary:
Reorder the fields in both to use padding more efficiently, and add more
comments on the purpose of the fields.

Replace `std::vector<SectionChunk*> AssociativeChildren` with a
singly-linked list. This avoids the separate vector allocation to list
associative children, and shrinks the 3 pointers used for the typically
empty vector down to 1.

In the end, this reduces the sum of heap allocations used to link
browser_tests.exe with NO PDB by 13.10%, going from 2,248,728 KB to
1,954,071 KB of heap. These numbers exclude memory mapped files, which
are of course a significant factor in LLD's memory usage.

Reviewers: ruiu, mstorsjo, aganea

Subscribers: jdoerfert, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D59797

llvm-svn: 357535
 		2019-04-02 22:11:58 +00:00
..
COFF [COFF] Reduce the size of Chunk and SectionChunk, NFC 2019-04-02 22:11:58 +00:00
Common Fail early if an output file is not writable 2019-03-11 16:30:55 +00:00
ELF ELF: Perform per-section .ARM.exidx processing during combineEhFrameSections(). NFCI. 2019-04-01 18:01:18 +00:00
MinGW [MinGW] Hook up the --exclude-all-symbols option 2019-02-19 21:57:49 +00:00
cmake/modules [CMake] Properly conditionalize installation of lld libraries 2018-03-09 13:09:36 +00:00
docs Reland "[Remarks] Add -foptimization-record-passes to filter remark emission" 2019-03-12 21:22:27 +00:00
include/lld Fail early if an output file is not writable 2019-03-11 16:30:55 +00:00
lib [ELF][MachO][wasm] Simplify range-style std::find{,_if} with STLExtras.h utilities. NFC 2019-03-29 16:21:16 +00:00
test Re-land "[WebAssembly] Improve invalid relocation error message"" 2019-03-29 22:56:39 +00:00
tools/lld Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
unittests Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
utils Python 2/3 compatibility 2019-03-20 07:42:13 +00:00
wasm Re-land "[WebAssembly] Improve invalid relocation error message"" 2019-03-29 22:56:39 +00:00
.arcconfig [lld] Set up .arcconfig to point to new Diffusion LLD repository 2017-12-06 20:56:23 +00:00
.clang-format
…
.gitignore
…
CMakeLists.txt [WebAssembly] Initial wasm linker implementation 2017-11-17 18:14:09 +00:00
CODE_OWNERS.TXT [WebAssembly] Initial wasm linker implementation 2017-11-17 18:14:09 +00:00
LICENSE.TXT Fix typos throughout the license files that somehow I and my reviewers 2019-01-21 09:52:34 +00:00
README.md Note that the test .tar.xz has been updated. 2017-12-22 19:37:32 +00:00

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.