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Benjamin Kramer aa2475fd87 SelectionDAG: Teach FoldConstantArithmetic how to deal with vectors. 
This required disabling a PowerPC optimization that did the following:
input:
x = BUILD_VECTOR <i32 16, i32 16, i32 16, i32 16>
lowered to:
tmp = BUILD_VECTOR <i32 8, i32 8, i32 8, i32 8>
x = ADD tmp, tmp

The add now gets folded immediately and we're back at the BUILD_VECTOR we
started from. I don't see a way to fix this currently so I left it disabled
for now.

Fix some trivially foldable X86 tests too.

llvm-svn: 174325
2013-02-04 15:19:18 +00:00
autoconf Enable AArch64 as a target built by default. 2013-02-04 12:32:21 +00:00
bindings [python] Add markup option to disassembler 2012-12-01 21:57:30 +00:00
cmake Turn off uninitialized-use warnings for gcc in cmake build 2013-02-04 02:32:44 +00:00
docs Coding standards: don't use `inline` when defining a function in a class 2013-02-04 10:24:58 +00:00
examples Update links to "Itanium C++ ABI: Exception Handling" document 2013-01-13 15:53:09 +00:00
include SelectionDAG: Teach FoldConstantArithmetic how to deal with vectors. 2013-02-04 15:19:18 +00:00
lib SelectionDAG: Teach FoldConstantArithmetic how to deal with vectors. 2013-02-04 15:19:18 +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 SelectionDAG: Teach FoldConstantArithmetic how to deal with vectors. 2013-02-04 15:19:18 +00:00
tools [Object][Archive] Improve performance. 2013-02-03 10:48:50 +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 Enable AArch64 as a target built by default. 2013-02-04 12:32:21 +00:00
CODE_OWNERS.TXT Add myself as code owner of AArch64 backend. 2013-01-31 12:51:16 +00:00
configure Enable AArch64 as a target built by default. 2013-02-04 12:32:21 +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 Pass CPPFLAGS/CFLAGS/CXXFLAGS from the environment of configure to 2013-02-04 08:15:53 +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.