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Chandler Carruth 8f637786d8 [x86] Teach the AVX1 path of the new vector shuffle lowering one more 
trick that I missed.

VPERMILPS has a non-immediate memory operand mode that allows it to do
asymetric shuffles in the two 128-bit lanes. Use this rather than two
shuffles and a blend.

However, it turns out the variable shuffle path to VPERMILPS (and
VPERMILPD, although that one offers no functional differenc from the
immediate operand other than variability) wasn't even plumbed through
codegen. Do such plumbing so that we can reasonably emit
a variable-masked VPERMILP instruction. Also plumb basic comment parsing
and printing through so that the tests are reasonable.

There are still a few tests which don't show the shuffle pattern. These
are tests with undef lanes. I'll teach the shuffle decoding and printing
to handle undef mask entries in a follow-up. I've looked at the masks
and they seem reasonable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218300 91177308-0d34-0410-b5e6-96231b3b80d8
2014-09-23 10:08:29 +00:00
autoconf
bindings
cmake Add CMake check for libatomic. 2014-09-12 11:08:59 +00:00
docs Fix sphinx warning. 2014-09-18 21:54:02 +00:00
examples Add doInitialization/doFinalization to DataLayoutPass. 2014-09-10 21:27:43 +00:00
include [ADT/IntrusiveRefCntPtr] Give friend access to IntrusiveRefCntPtr<X> so the relevant move constructor can access 'Obj'. 2014-09-23 06:06:43 +00:00
lib [x86] Teach the AVX1 path of the new vector shuffle lowering one more 2014-09-23 10:08:29 +00:00
projects
test [x86] Teach the AVX1 path of the new vector shuffle lowering one more 2014-09-23 10:08:29 +00:00
tools llvm-cov: Allow creating CoverageMappings from filenames 2014-09-20 17:19:52 +00:00
unittests Add hsail and amdil64 to Triple 2014-09-19 19:52:11 +00:00
utils [lit] Parse all strings as UTF-8 rather than ASCII. 2014-09-12 16:46:05 +00:00
.arcconfig
.clang-format
.clang-tidy Add .clang-tidy configuration file to provide LLVM-optimized defaults for 2014-09-08 13:30:00 +00:00
.gitignore
CMakeLists.txt Enabling LLVM & Clang to be cross-compiled using CMake from a single configuration command line 2014-09-03 23:21:18 +00:00
CODE_OWNERS.TXT Add Tom Stellard's role as 3.5 release manager. 2014-09-12 08:07:31 +00:00
configure
CREDITS.TXT
LICENSE.TXT
llvm.spec.in
LLVMBuild.txt
Makefile
Makefile.common
Makefile.config.in
Makefile.rules Revert my earlier change to add "all" as a dependency to check. In 2014-09-19 18:44:27 +00:00
README.txt

README.txt 

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