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Daniel Jasper a27feb2b3d [MachineLICM] First steps of sinking GEPs near calls. 
Specifically, if there are copy-like instructions in the loop header
they are moved into the loop close to their uses. This reduces the live
intervals of the values and can avoid register spills.

This is working towards a fix for http://llvm.org/PR22230.
Review: http://reviews.llvm.org/D7259

Next steps:
- Find a better cost model (which non-copy instructions should be sunk?)
- Make this dependent on register pressure

llvm-svn: 232262
2015-03-14 10:58:38 +00:00
autoconf [autoconf] Fix the build failure by quoting the strings. 2015-03-12 19:56:25 +00:00
bindings Go bindings: use MDNode::replaceAllUsesWith instead of MDTuple::replaceAllUsesWith. 2015-03-05 22:55:38 +00:00
cmake Refactoring CMake CrossCompile module. 2015-03-12 17:33:34 +00:00
docs [opaque pointer type] Add textual IR support for explicit type parameter to gep operator 2015-03-13 18:20:45 +00:00
examples Fix the build of the gold-plugin and examples. 2015-03-04 19:15:29 +00:00
include [opaque pointer type] Start migrating GEP creation to explicitly specify the pointee type 2015-03-14 01:53:18 +00:00
lib [MachineLICM] First steps of sinking GEPs near calls. 2015-03-14 10:58:38 +00:00
projects Reverse the order libc++ and libc++abi are added in CMake. 2015-03-04 01:16:43 +00:00
test [MachineLICM] First steps of sinking GEPs near calls. 2015-03-14 10:58:38 +00:00
tools [dsymutil] Generate debug_aranges section. 2015-03-14 03:46:51 +00:00
unittests DataLayout is mandatory, update the API to reflect it with references. 2015-03-10 02:37:25 +00:00
utils Use the variable names from the TargetInstrInfo source when we 2015-03-13 01:26:39 +00:00
.arcconfig
.clang-format
.clang-tidy
.gitignore Add one more vim swap file pattern 2015-01-30 21:59:28 +00:00
CMakeLists.txt Add new LLVM_OPTIMIZED_TABLEGEN build setting which configures, builds and uses a release tablegen build when LLVM is configured with assertions enabled. 2015-03-10 20:48:02 +00:00
CODE_OWNERS.TXT [CODE_OWNERS] Change the ownership of register allocators. 2015-03-05 22:15:17 +00:00
configure [autoconf] Fix the build failure by quoting the strings. 2015-03-12 19:56:25 +00:00
CREDITS.TXT
LICENSE.TXT Update for a new year. 2015-03-12 01:25:29 +00:00
llvm.spec.in
LLVMBuild.txt
Makefile
Makefile.common
Makefile.config.in Add a check for misbehaving -Wcomment from gcc-4.7 and add 2014-11-05 00:35:15 +00:00
Makefile.rules Add support for SunOS function/data sections and associated 2015-03-03 20:54:29 +00:00
README.txt Revert test commit 2015-02-04 18:46:00 +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're writing a package for LLVM, see docs/Packaging.rst for our
suggestions.