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Arnold Schwaighofer db78859615 SLPVectorizer: Handle more horizontal reductions (disabled) 
Match reductions starting at binary operation feeding into a phi. The code
handles trees like

 r += v1 + v2 + v3 ...

and

 r += v1
 r += v2
 ...

and

 r *= v1 + v2 + ...

We currently only handle associative operations (add, fadd fast).

The code can now also handle reductions feeding into stores.

 a[i] = v1 + v2 + v3 + ...

The code is currently disabled behind the flag "-slp-vectorize-hor".  The cost
model for most architectures is not there yet.

I found one opportunity of a horizontal reduction feeding a phi in TSVC
(LoopRerolling-flt) and there are several opportunities where reductions feed
into stores.

radar://14607682

llvm-svn: 191108
2013-09-20 21:18:20 +00:00
autoconf Fix for executing AutoRegen.sh. Revert a part of r187209. 2013-09-13 10:29:42 +00:00
bindings [python-bindings] Added support for getting/setting operands of values and getting the number of operands of a value. 2013-09-11 01:38:12 +00:00
cmake [CMake] Hack GetSVN.cmake to handle unusual terminals. 2013-09-16 21:38:01 +00:00
docs Implement function prefix data as an IR feature. 2013-09-16 01:08:15 +00:00
examples ExceptionDemo.cpp: Tweak a @param. [-Wdocumentation] 2013-07-29 11:03:50 +00:00
include Revert "llvm-c: Add LLVMGetPointerToFunction" 2013-09-20 07:00:36 +00:00
lib SLPVectorizer: Handle more horizontal reductions (disabled) 2013-09-20 21:18:20 +00:00
projects Port the detection of zlib from the main autoconf system to the sample 2013-08-18 01:55:15 +00:00
runtime Bring back the build of libprofile_rt on Sparc. It is now working correctly. See: 2013-09-08 09:15:09 +00:00
test SLPVectorizer: Handle more horizontal reductions (disabled) 2013-09-20 21:18:20 +00:00
tools llvm/tools/Makefile: Suppress building llvm-lto on cygming, for now, probably due to LTO.dll. 2013-09-20 13:12:24 +00:00
unittests Fixed typo in CreateProcessTrailingSlash test 2013-09-20 18:21:59 +00:00
utils Missed using check type enum in one place 2013-09-17 23:15:35 +00:00
.arcconfig
.clang-format Add a clang-format file so that the tool can automatically detect the 2013-09-02 07:19:04 +00:00
.gitignore
CMakeLists.txt [conf] Add config variable to disable crash related overrides. 2013-08-30 20:39:21 +00:00
CODE_OWNERS.TXT
configure [conf] Add config variable to disable crash related overrides. 2013-08-30 20:39:21 +00:00
CREDITS.TXT Test commit. 2013-08-16 18:09:06 +00:00
LICENSE.TXT
llvm.spec.in
LLVMBuild.txt
Makefile
Makefile.common
Makefile.config.in
Makefile.rules Makefile.rules: Avoid -fomit-frame-pointer also on cygwin due to PR14646. 2013-08-18 03:38:40 +00:00
README.txt

README.txt 

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

This directory and its subdirectories contain source code for the Low Level
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Please see the documentation provided in docs/ for further
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