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Jakob Stoklund Olesen 44868927b9 Eliminate a batch of uses of sub_ss and sub_sd in the X86 target. 
These idempotent sub-register indices don't do anything --- They simply
map XMM registers to themselves.  They no longer affect register classes
either since the SubRegClasses field has been removed from Target.td.

This patch replaces XMM->XMM EXTRACT_SUBREG and INSERT_SUBREG patterns
with COPY_TO_REGCLASS patterns which simply become COPY instructions.

The number of IMPLICIT_DEF instructions before register allocation is
reduced, and that is the cause of the test case changes.

llvm-svn: 160816
2012-07-26 21:40:42 +00:00
autoconf Fix a typo (the the => the) 2012-07-23 08:51:15 +00:00
bindings Remove tabs. 2012-07-19 00:23:13 +00:00
cmake autoconf: Re-introduce LLVM_HOSTTRIPLE since r143500, as rework of PR11060. 2012-07-22 03:04:52 +00:00
docs Add a floor intrinsic. 2012-07-26 17:43:27 +00:00
examples Move llvm/Support/IRBuilder.h -> llvm/IRBuilder.h 2012-06-29 12:38:19 +00:00
include Add support for v16i32/v16i64 into the code generator. This is required for backends that use i32/i64 vectors for the getSetCCResultType function. 2012-07-26 21:22:00 +00:00
lib Eliminate a batch of uses of sub_ss and sub_sd in the X86 target. 2012-07-26 21:40:42 +00:00
projects Fix a typo (the the => the) 2012-07-23 08:51:15 +00:00
runtime Free the allocated filename. Found by clang static analyzer. 2012-06-15 09:11:47 +00:00
test Eliminate a batch of uses of sub_ss and sub_sd in the X86 target. 2012-07-26 21:40:42 +00:00
tools Fix a typo (the the => the) 2012-07-23 08:51:15 +00:00
unittests make ConstantRange::zeroExtend() optimal 2012-07-23 20:33:29 +00:00
utils Make l/q suffixes on AVX forms of scalar convert instructions consistent with their non-AVX forms. 2012-07-26 07:48:28 +00:00
.gitignore Add tools/lld to .gitignore. 2012-05-02 21:25:32 +00:00
CMakeLists.txt Revert "Build script changes for R600/SI Codegen v6" 2012-07-16 18:19:46 +00:00
CODE_OWNERS.TXT Add the list of code owners to the top level of the LLVM source tree to 2012-07-26 08:04:09 +00:00
configure autoconf: Re-introduce LLVM_HOSTTRIPLE since r143500, as rework of PR11060. 2012-07-22 03:04:52 +00:00
CREDITS.TXT Alphabetize. 2012-06-19 23:47:58 +00:00
LICENSE.TXT Add YAML parser to Support. 2012-04-03 23:09:22 +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 Do not install llvm-config-host for cross-builds of clang. rdar://11317847 2012-05-09 00:07:02 +00:00
Makefile.common [docs] Remove unsupported references to ExtraSource variable. 2012-05-15 21:32:27 +00:00
Makefile.config.in Remove autoconf support for runtest and tclsh, some of the last vestigal 2012-06-27 23:53:41 +00:00
Makefile.rules Remove 'check-dg', a wrapper around 'check-local-dg' which was just 2012-06-28 00:03:13 +00:00
README.txt test commit 2012-07-11 17:34:12 +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 HTML documentation provided in docs/index.html for further
assistance with LLVM.

If you're writing a package for LLVM, see docs/Packaging.html for our
suggestions.