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83474ee594
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Preston Gurd 83474ee594 This patch aims to improve compile time performance by increasing 
the SCEV vector size in LoopStrengthReduce. It is observed that
the BaseRegs vector size is 4 in most cases,
and elements are frequently copied when it is initialized as
SmallVector<const SCEV *, 2> BaseRegs.
Our benchmark results show that the compilation time performance
improved by ~0.5%.

Patch by Wan Xiaofei.




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174219 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-01 20:41:27 +00:00
autoconf Add -Wno-nested-anon-types to -pedantic builds of LLVM. This Clang warning 2013-01-31 22:19:12 +00:00
bindings [python] Add markup option to disassembler 2012-12-01 21:57:30 +00:00
cmake Add -Wno-nested-anon-types to -pedantic builds of LLVM. This Clang warning 2013-01-31 22:19:12 +00:00
docs [docs] Fixup fallout from other grammar fixup. 2013-02-01 03:50:20 +00:00
examples Update links to "Itanium C++ ABI: Exception Handling" document 2013-01-13 15:53:09 +00:00
include Remove one of the odious 'Raw' methods. 2013-02-01 00:48:14 +00:00
lib This patch aims to improve compile time performance by increasing 2013-02-01 20:41:27 +00:00
projects Add AArch64 as an experimental target. 2013-01-31 12:12:40 +00:00
runtime libprofile/CommonProfiling.c: Fix according to C89. 2012-11-02 01:32:02 +00:00
test Add a testcase for some past-the-end address subtleties. 2013-02-01 19:37:52 +00:00
tools Fix a copy/paste-o that got missed because 'check' doesn't build lto. 2013-01-31 23:34:47 +00:00
unittests Change GetPointerBaseWithConstantOffset's DataLayout argument from a 2013-01-31 02:00:45 +00:00
utils MachineModel: Inconsequential TableGen SubtargetEmitter fix. 2013-02-01 03:19:54 +00:00
.arcconfig Add .arcconfig to the repository. Useful if someone wants to use phabricator's command line tool. 2012-12-01 12:07:58 +00:00
.gitignore Add extra vim swap file pattern 2012-10-09 23:48:34 +00:00
CMakeLists.txt Fix spelling 2012-12-13 15:25:07 +00:00
CODE_OWNERS.TXT Add myself as code owner of AArch64 backend. 2013-01-31 12:51:16 +00:00
configure Regenerate configure to hopefully fix buildbot breakage. Oh how I love autoconf. 2013-01-31 23:02:23 +00:00
CREDITS.TXT Update my email address. 2012-11-29 21:17:26 +00:00
LICENSE.TXT Add LICENSE.TXT covering contributions made by ARM. 2013-01-07 10:04:49 +00:00
llvm.spec.in Tidy up. s/Low Level Virtual Machine/LLVM/. 2012-01-25 22:00:23 +00:00
LLVMBuild.txt LLVMBuild: Introduce a common section which currently has a list of the 2011-12-12 22:45:54 +00:00
Makefile Improved svn repo searching for 'make update' 2013-01-28 03:19:57 +00:00
Makefile.common Makefile.common: Update a description, s/Source/SOURCES/ , according to MakefileGuide.html#control-variables . 2012-12-07 01:43:23 +00:00
Makefile.config.in Add -Wno-nested-anon-types to -pedantic builds of LLVM. This Clang warning 2013-01-31 22:19:12 +00:00
Makefile.rules Add -Wno-nested-anon-types to -pedantic builds of LLVM. This Clang warning 2013-01-31 22:19:12 +00:00
README.txt Update README.txt to more accurately reflect reality. 2013-01-08 02:35:15 +00:00

README.txt 

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

This directory and its subdirectories contain source code for the Low Level
Virtual Machine, 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're writing a package for LLVM, see docs/Packaging.rst for our
suggestions.