Simon Pilgrim a6943fff90 [X86][SSE] pslldq/psrldq byte shifts/rotation for SSE2 ... This patch builds on http://reviews.llvm.org/D5598 to perform byte rotation shuffles (lowerVectorShuffleAsByteRotate) on pre-SSSE3 (palignr) targets - pre-SSSE3 is only enabled on i8 and i16 vector targets where it is a more definite performance gain. I've also added a separate byte shift shuffle (lowerVectorShuffleAsByteShift) that makes use of the ability of the SLLDQ/SRLDQ instructions to implicitly shift in zero bytes to avoid the need to create a zero register if we had used palignr. Differential Revision: http://reviews.llvm.org/D5699 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222340 91177308-0d34-0410-b5e6-96231b3b80d8		2014-11-19 10:06:49 +00:00
..
Analysis	AliasSetTracker: UnknownInsts should contribute to the refcount	2014-11-19 09:41:05 +00:00
AsmParser	Update SetVector to rely on the underlying set's insert to return a pair<iterator, bool>	2014-11-19 07:49:26 +00:00
Bitcode	Pass a reference to ValueEnumerator.	2014-11-17 20:06:27 +00:00
CodeGen	[X86][SSE] pslldq/psrldq byte shifts/rotation for SSE2	2014-11-19 10:06:49 +00:00
DebugInfo	[dwarfdump] Handle relocations in Dwarf accelerator tables	2014-11-14 19:30:08 +00:00
ExecutionEngine	Fix covered switch warning	2014-11-18 01:26:46 +00:00
IR	Update SetVector to rely on the underlying set's insert to return a pair<iterator, bool>	2014-11-19 07:49:26 +00:00
IRReader
LineEditor
Linker	Update SetVector to rely on the underlying set's insert to return a pair<iterator, bool>	2014-11-19 07:49:26 +00:00
LTO	Remove StringMap::GetOrCreateValue in favor of StringMap::insert	2014-11-19 05:49:42 +00:00
MC	Remove StringMap::GetOrCreateValue in favor of StringMap::insert	2014-11-19 05:49:42 +00:00
Object	llvm-readobj: fix off-by-one error in COFFDumper	2014-11-19 02:07:10 +00:00
Option
ProfileData	llvm-cov: Sink some reporting logic into CoverageMapping	2014-11-14 01:50:32 +00:00
Support	Update SetVector to rely on the underlying set's insert to return a pair<iterator, bool>	2014-11-19 07:49:26 +00:00
TableGen
Target	[X86][SSE] pslldq/psrldq byte shifts/rotation for SSE2	2014-11-19 10:06:49 +00:00
Transforms	Update SetVector to rely on the underlying set's insert to return a pair<iterator, bool>	2014-11-19 07:49:26 +00:00
CMakeLists.txt
LLVMBuild.txt
Makefile