llvm-project

History

Nico Weber f6544934b9 Make check-llvm run 50% faster on macOS, 18% faster on Windows. While looking at cycle time graphs of some of my bots, I noticed that `327894859c` made check-llvm noticeably slower on macOS and Windows. As it turns out, the 5 substitutions added in that change were enough to cause lit to thrash the build-in cache in re.compile() (re.sub() is implemented as re.compile().sub()), and apparently applySubstitutions() is on the cricital path and slow when all regexes need to compile all the time. (See `_MAXCACHE = 512` in cpython/Lib/re.py) Supporting full regexes for lit substitutions seems a bit like overkill, but for now add a simple unbounded cache to recover the lost performance. No intended behavior change.		2020-01-06 12:57:42 -05:00
..
benchmarks	…
bindings	[NFC] Fix trivial typos in comments	2020-01-06 10:50:26 +00:00
cmake	[cmake] Remove install from add_llvm_example_library.	2020-01-04 17:12:24 +00:00
docs	Generalize the pass registration mechanism used by Polly to any third-party tool	2020-01-02 16:45:31 +01:00
examples	Re-apply "[Examples] Add IRTransformations directory to examples."	2020-01-04 15:47:23 +00:00
include	[ARM,MVE] Fix many signedness errors in MVE intrinsics.	2020-01-06 16:33:16 +00:00
lib	[AIX] Use csect reference for function address constants	2020-01-06 11:45:00 -05:00
projects	…
resources	…
runtimes	[llvm/runtimes] Add runtimes as a dependency of clang-bootstrap-deps	2019-12-16 16:58:15 -08:00
test	[llvm-readelf] Print EI_ABIVERSION as decimal instead of hexadecimal	2020-01-06 09:25:45 -08:00
tools	[llvm-readelf] Print EI_ABIVERSION as decimal instead of hexadecimal	2020-01-06 09:25:45 -08:00
unittests	[test][DebugInfo][NFC] Rename method for clarity	2020-01-06 11:30:26 +00:00
utils	Make check-llvm run 50% faster on macOS, 18% faster on Windows.	2020-01-06 12:57:42 -05:00
.arcconfig	…
.clang-format	…
.clang-tidy	…
.gitattributes	…
.gitignore	…
CMakeLists.txt	Re-apply "[Examples] Add IRTransformations directory to examples."	2020-01-04 15:47:23 +00:00
CODE_OWNERS.TXT	…
CREDITS.TXT	…
LICENSE.TXT	…
LLVMBuild.txt	…
README.txt	…
RELEASE_TESTERS.TXT	…
configure	…
llvm.spec.in	…

README.txt

The LLVM Compiler Infrastructure
================================

This directory and its subdirectories contain source code for LLVM,
a toolkit for the construction of highly optimized compilers,
optimizers, and runtime environments.

LLVM is open source software. You may freely distribute it under the terms of
the license agreement found in LICENSE.txt.

Please see the documentation provided in docs/ for further
assistance with LLVM, and in particular docs/GettingStarted.rst for getting
started with LLVM and docs/README.txt for an overview of LLVM's
documentation setup.

If you are writing a package for LLVM, see docs/Packaging.rst for our
suggestions.