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Mirror of https://github.com/RPCS3/llvm-mirror
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Jun Bum Lim 63dc0d2253 [CodeGenPrep] Skip merging empty case blocks 
Summary: Merging an empty case block into the header block of switch could cause
ISel to add COPY instructions in the header of switch, instead of the case
block, if the case block is used as an incoming block of a PHI. This could
potentially increase dynamic instructions, especially when the switch is in a
loop. I added a test case which was reduced from the benchmark I was targetting.

Reviewers: t.p.northover, mcrosier, manmanren, wmi, davidxl

Subscribers: qcolombet, danielcdh, hfinkel, mcrosier, llvm-commits

Differential Revision: https://reviews.llvm.org/D22696

llvm-svn: 287553
2016-11-21 16:47:28 +00:00
bindings Fix go binding to adapt the new attribute API 2016-11-18 10:11:02 +00:00
cmake [CMake] Apply sandbox profile to target not directory 2016-11-19 01:32:09 +00:00
docs Timer: Track name and description. 2016-11-18 19:43:18 +00:00
examples ExceptionDemo: remove some undefined behaviour 2016-11-20 02:36:38 +00:00
include [InstrProfiling] Mark __llvm_profile_instrument_target last parameter as i32 zeroext if appropriate. 2016-11-21 11:57:19 +00:00
lib [CodeGenPrep] Skip merging empty case blocks 2016-11-21 16:47:28 +00:00
projects [CMake] Correct configuration order of the sub-projects based on ther dependancies 2016-10-09 20:38:29 +00:00
resources
runtimes [CMake] Make the runtimes directory work with bootstrap builds 2016-10-19 21:50:25 +00:00
test [CodeGenPrep] Skip merging empty case blocks 2016-11-21 16:47:28 +00:00
tools [llvm-cov] Avoid 0% when reporting something that's 0/0 2016-11-21 14:00:04 +00:00
unittests Fix spelling mistakes in Tools/Tests comments. NFC. 2016-11-20 13:31:13 +00:00
utils [Sparc] Use target name instead of namespace as prefix for MCRegisterClasses array 2016-11-21 09:33:05 +00:00
.arcconfig project_id is from another era in phabricator land and does not provide any value. 2016-09-27 15:47:29 +00:00
.clang-format
.clang-tidy .clang-tidy: correct style name is 'camelBack' not 'lowerCase'. 2016-09-13 19:04:26 +00:00
.gitignore gitignore: ignore VS Code editor files 2016-09-02 22:54:26 +00:00
CMakeLists.txt Add an option to disable libedit 2016-11-18 01:25:49 +00:00
CODE_OWNERS.TXT CODE_OWNERS: Take ownership of the X86 backend. 2016-11-12 05:16:06 +00:00
configure Remove autoconf support 2016-01-26 21:29:08 +00:00
CREDITS.TXT Give SLP vectorizer credit where it's due. 2016-11-14 19:01:59 +00:00
LICENSE.TXT Remove autoconf references from LICENSE.TXT 2016-08-12 20:11:03 +00:00
llvm.spec.in
LLVMBuild.txt
README.txt Test commit, deleted empty line at the end of README.txt 2016-11-07 18:31:21 +00:00
RELEASE_TESTERS.TXT Adding RELEASE_TESTERS.TXT 2016-07-21 16:46:44 +00:00

README.txt 

Low Level Virtual Machine (LLVM)
================================

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.