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Owen Anderson 883b5add8e Remove a very old instcombine where we would turn sequences of selects into 
logical operations on the i1's driving them.  This is a bad idea for every
target I can think of (confirmed with micro tests on all of: x86-64, ARM,
AArch64, Mips, and PowerPC) because it forces the i1 to be materialized into
a general purpose register, whereas consuming it directly into a select generally
allows it to exist only transiently in a predicate or flags register.

Chandler ran a set of performance tests with this change, and reported no
measurable change on x86-64.

llvm-svn: 201275
 		2014-02-12 23:54:07 +00:00
..
autoconf Add version, arch, system libs, and targets to Makefile.config 2014-02-09 16:36:42 +00:00
bindings Makefile.ocaml: Tweak to use --system-libs. 2013-12-20 00:36:59 +00:00
cmake Teach tablegen() macro to check needed variables 2014-02-12 11:50:11 +00:00
docs Add a note about using "Differential Revision:" in commit messages 2014-02-11 16:58:03 +00:00
examples Don't try to build ExceptionDemo on ARM. 2014-02-12 21:47:15 +00:00
include [Vectorizer] Add a new 'OperandValueKind' in TargetTransformInfo called 2014-02-12 23:43:47 +00:00
lib Remove a very old instcombine where we would turn sequences of selects into 2014-02-12 23:54:07 +00:00
projects llvm/projects/CMakeLists.txt: Add dragonegg. 2014-01-24 12:53:08 +00:00
test Remove a very old instcombine where we would turn sequences of selects into 2014-02-12 23:54:07 +00:00
tools VS Integration: install toolsets for x64 too (PR18738) 2014-02-12 23:26:29 +00:00
unittests Extend RTDyld API to enable optionally precomputing the total amount of memory 2014-02-12 21:30:07 +00:00
utils Remove special case filtering for instructions with lock prefix as they are all marked with isCodeGenOnly already. 2014-02-12 08:09:20 +00:00
.arcconfig
…
.clang-format
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.gitignore Added .DS_Store entry in .gitignore for ignoring .DS_Store files in the source 2014-01-25 15:15:16 +00:00
CMakeLists.txt Fix LLVM install rules to not set permissions on include/ 2014-02-10 10:50:55 +00:00
CODE_OWNERS.TXT Update email address. 2013-12-04 09:42:49 +00:00
CREDITS.TXT Fix documentation typos 2013-12-20 00:33:39 +00:00
LICENSE.TXT Update the copyright credits -- Happy new year 2014! 2014-01-01 08:27:31 +00:00
LLVMBuild.txt Remove the very substantial, largely unmaintained legacy PGO 2013-10-02 15:42:23 +00:00
Makefile Provide CMake package modules in install tree 2014-02-09 16:37:02 +00:00
Makefile.common
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Makefile.config.in Add version, arch, system libs, and targets to Makefile.config 2014-02-09 16:36:42 +00:00
Makefile.rules Provide CMake package modules in install tree 2014-02-09 16:37:02 +00:00
README.txt Revert "Test commit to check e-mail address. Please discard this." 2013-10-04 10:59:13 +00:00
configure Add version, arch, system libs, and targets to Makefile.config 2014-02-09 16:36:42 +00:00
llvm.spec.in
…

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.