llvm-project/lld
Nico Weber bc588f9961 [lld/mac] Inline a check
`match()` can only return for non-empty vectors, but at least in
non-LTO builds that isn't clear to the compiler. Help it out.
This is a minor but measurable speedup on my machine (but less
than what we might've lost in https://reviews.llvm.org/D100818#2764272 --
bot note higher N on this measurement here, so higher confidence here):

    % ministat at_main at_branch
    x at_main
    + at_branch
        N           Min           Max        Median           Avg        Stddev
    x  30     3.9243979     4.0395119      3.987375     3.9826236   0.027567796
    +  30     3.8495831     4.0009291      3.931325     3.9347135   0.037832878
    Difference at 95.0% confidence
            -0.0479101 +/- 0.0171102
            -1.20298% +/- 0.429622%
            (Student's t, pooled s = 0.0331007)

No behavior change.

Eventually we should apply these lists at symbol parse time instead of
every time shouldExportSymbol() though :)

Differential Revision: https://reviews.llvm.org/D102655
2021-05-17 20:04:45 -04:00
..
COFF [COFF] Remove a truncation assertion from setRVA 2021-05-13 19:37:14 -07:00
Common [ELF] Simplify isValidCIdentifier. NFC 2021-03-11 09:38:15 -08:00
ELF [lld][X86] Restore gotEntrySize. 2021-05-17 00:13:00 +01:00
MachO [lld/mac] Inline a check 2021-05-17 20:04:45 -04:00
MinGW [lld][MinGW] Introduce aliases for -Bdynamic and -Bstatic 2021-05-17 22:13:26 +02:00
cmake/modules [cmake] Add support for multiple distributions 2021-05-12 11:13:18 -07:00
docs [ELF] Add -Bno-symbolic 2021-05-14 09:40:32 -07:00
include/lld [lld] Add missing header guard (NFC) 2021-04-02 11:12:23 +08:00
lib [NFC] Fix "not used" warning 2021-04-26 22:09:23 -07:00
test [lld][MinGW] Introduce aliases for -Bdynamic and -Bstatic 2021-05-17 22:13:26 +02:00
tools/lld [lld] Delete unused includes. NFC 2021-04-19 10:56:49 -07:00
unittests Use INTERFACE_COMPILE_OPTIONS to disable -Wsuggest-override for any target that links to gtest 2020-07-27 08:37:01 -07:00
utils
wasm [lld][WebAssembly] Remove unused method declaration. NFC 2021-05-14 15:54:33 -07:00
.clang-format
.clang-tidy [lld] Add .clang-tidy to customize readability-identifier-naming.{Member,Parameter,Variable}Case => camelBack 2020-03-09 08:26:41 -07:00
.gitignore
CMakeLists.txt [lld] Convert LLVM_CMAKE_PATH to a CMake path 2021-05-05 15:42:55 -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.