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Mirror of https://github.com/RPCS3/llvm-mirror
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Michael Zuckerman 9499e4e2f8 [X86][LLVM]Expanding Supports lowerInterleavedStore() in X86InterleavedAccess. 
This patch expands the support of lowerInterleavedStore to 32x8i stride 4.

LLVM creates suboptimal shuffle code-gen for AVX2. In overall, this patch is a specific fix for the pattern (Strid=4 VF=32) and we plan to include more patterns in the future. To reach our goal of "more patterns". We include two mask creators. The first function creates shuffle's mask equivalent to unpacklo/unpackhi instructions. The other creator creates mask equivalent to a concat of two half vectors(high/low).

The patch goal is to optimize the following sequence:
At the end of the computation, we have ymm2, ymm0, ymm12 and ymm3 holding
each 32 chars:

c0, c1, , c31
m0, m1, , m31
y0, y1, , y31
k0, k1, ., k31

And these need to be transposed/interleaved and stored like so:

c0 m0 y0 k0 c1 m1 y1 k1 c2 m2 y2 k2 c3 m3 y3 k3 ....

Reviewers:
dorit
Farhana
RKSimon
guyblank
DavidKreitzer

Differential Revision: https://reviews.llvm.org/D34601

llvm-svn: 309086
2017-07-26 08:10:14 +00:00
bindings [NFC] Remove multiple semicolons 2017-06-28 23:15:16 +00:00
cmake [CMake] Fix broken builds from r309029 2017-07-25 20:58:14 +00:00
docs [docs] Fix a typo: iteratation -> iteration 2017-07-25 17:52:55 +00:00
examples Defeat another -Wunused-but-set-variable warning 2017-07-19 15:06:31 +00:00
include TargetLowering: Change isShuffleMaskLegal's mask argument type to ArrayRef<int>. NFCI. 2017-07-26 08:06:58 +00:00
lib [X86][LLVM]Expanding Supports lowerInterleavedStore() in X86InterleavedAccess. 2017-07-26 08:10:14 +00:00
projects Add temporary workaround to allow in-tree libc++ builds on Windows 2017-05-11 01:44:30 +00:00
resources In MSVC builds embed a VERSIONINFO resource in our exe and DLL files. 2015-06-12 15:58:29 +00:00
runtimes [CMake] Remove redundant logic in runtimes/CMakeList.txt 2017-07-24 17:26:28 +00:00
test [X86][LLVM]Expanding Supports lowerInterleavedStore() in X86InterleavedAccess. 2017-07-26 08:10:14 +00:00
tools Add test coverage for new PM PGOOpt handling. 2017-07-26 02:00:43 +00:00
unittests Remove some leftover DWARFContextInMemory. 2017-07-19 23:34:59 +00:00
utils [lit] Attempt to fix Python unittest adaptor logic 2017-07-26 01:27:18 +00:00
.arcconfig project_id is from another era in phabricator land and does not provide any value. 2016-09-27 15:47:29 +00:00
.clang-format
.clang-tidy .clang-tidy: correct style name is 'camelBack' not 'lowerCase'. 2016-09-13 19:04:26 +00:00
.gitignore gitignore: Ignore .vs folder (VS2017 config files) 2017-04-08 00:16:58 +00:00
CMakeLists.txt [Modules] Rework r274270. Let Clang targets depend on intrinsics_gen. 2017-07-23 05:09:44 +00:00
CODE_OWNERS.TXT Remove the BBVectorize pass. 2017-06-30 07:09:08 +00:00
configure Remove autoconf support 2016-01-26 21:29:08 +00:00
CREDITS.TXT Another test commit 2017-07-01 03:24:06 +00:00
LICENSE.TXT Bump year to 2017 in LICENSE.txt 2017-01-12 18:02:42 +00:00
llvm.spec.in [Sparc] Implement i64 load/store support for 32-bit sparc. 2015-08-10 19:11:39 +00:00
LLVMBuild.txt
README.txt Test commit. Added a blank line. 2017-03-06 20:45:33 +00:00
RELEASE_TESTERS.TXT [RelTest] Diana is doing both releases now 2017-07-14 08:33:52 +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 are writing a package for LLVM, see docs/Packaging.rst for our
suggestions.