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Mirror of https://github.com/RPCS3/llvm-mirror
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Ruiling Song 5d215901cd [RegisterCoalescer] Resolve conflict based on liveness of subregister 
Currently we are resolving lane/subregister conflict by visiting
instructions sequentially in current block to see whether there is any
use of the tainted lanes. To save compile time, we are not doing further
check in successor blocks. This sounds reasonable without subgregister liveness.

But since we have added subregister liveness tracking capability to
register coalescer, we can easily determine whether we have subregister
liveness conflict by checking subranges. This would help coalescing more
COPYs for target that enables subregister liveness tracking.

Reviewed by: arsenm, qcolombet

Differential Revision: https://reviews.llvm.org/D104509
2021-07-14 14:43:22 +08:00
benchmarks
bindings [SanitizeCoverage] Add support for NoSanitizeCoverage function attribute 2021-05-25 12:57:14 +02:00
cmake [CMake] Disable -fno-semantic-interposition for GCC<10.3 on SystemZ 2021-07-08 22:09:21 -07:00
docs Reformulate OrcJIT tutorial doc to make it more clear. 2021-07-14 05:48:01 +00:00
examples [Orc] At CBindings for LazyRexports 2021-07-01 21:52:05 +02:00
include [NewPM][SimpleLoopUnswitch] Add option to not trivially unswitch 2021-07-13 16:09:42 -07:00
lib [RegisterCoalescer] Resolve conflict based on liveness of subregister 2021-07-14 14:43:22 +08:00
projects [RFC][debuginfo-test] Rename debug-info lit tests for general purposes 2021-06-28 11:31:40 +01:00
resources
runtimes [runtimes] Fix umbrella component targets 2021-06-12 19:49:44 -07:00
test [RegisterCoalescer] Resolve conflict based on liveness of subregister 2021-07-14 14:43:22 +08:00
tools [CSSPGO][llvm-profgen] Fix a missing initalization 2021-07-13 19:49:55 -07:00
unittests Revert "[llvm] Add enum iteration to Sequence" 2021-07-13 16:44:42 +00:00
utils [gn build] (manually) port 303ddb60a2d2 2021-07-13 15:15:38 -04:00
.clang-format
.clang-tidy NFC: .clang-tidy: Inherit configs from parents to improve maintainability 2021-06-08 08:25:59 -07:00
.gitattributes Fix the "git modified" issue on the preserve-comments-crlf.s. 2019-09-10 12:17:49 +00:00
.gitignore Remove .gitignore entries not relevant in the monorepo. 2021-04-07 12:25:02 -07:00
CMakeLists.txt [RFC][debuginfo-test] Rename debug-info lit tests for general purposes 2021-06-28 11:31:40 +01:00
CODE_OWNERS.TXT [M68k][CODE_OWNERS](0/8) Add code owner for the M68k target 2021-03-08 12:30:56 -08:00
configure
CREDITS.TXT Update personal info in CREDITS.TXT 2021-04-11 19:25:02 +08:00
LICENSE.TXT Fix typos throughout the license files that somehow I and my reviewers 2019-01-21 09:52:34 +00:00
llvm.spec.in Update structured references to the license to the new license. 2019-01-19 11:30:51 +00:00
README.txt Test commit. 2020-03-14 18:08:26 -07:00
RELEASE_TESTERS.TXT Update the list of platforms & archs 2018-12-16 14:47:16 +00:00

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.