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	Commit message (Collapse)	Author	Age
*	X86: Make shuffle -> shift conversion more aggressive about undefs.	Benjamin Kramer	2013-05-17
\| \| \| \| \| \| \| \| \| \| \|	Shuffles that only move an element into position 0 of the vector are common in the output of the loop vectorizer and often generate suboptimal code when SSSE3 is not available. Lower them to vector shifts if possible. We still prefer palignr over psrldq because it has higher throughput on sandybridge. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182102 91177308-0d34-0410-b5e6-96231b3b80d8
*	X86: Fold EXTRACT_SUBVECTORs of a BUILD_VECTOR into a smaller BUILD_VECTOR.	Benjamin Kramer	2013-03-07
\| \| \| \| \| \| \| \| \| \|	That can usually be lowered efficiently and is common in sandybridge code. It would be nice to do this in DAGCombiner but we can't insert arbitrary BUILD_VECTORs this late. Fixes PR15462. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176634 91177308-0d34-0410-b5e6-96231b3b80d8
*	Allow 256-bit shuffles to be split if a 128-bit lane contains elements from ↵	Craig Topper	2012-04-06
\| \| \| \| \| \|	a single source. This is a rewrite of the 256-bit shuffle splitting code based on similar code from legalize types. Fixes PR12413. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154166 91177308-0d34-0410-b5e6-96231b3b80d8
*	Add instruction selection for 256-bit VPSHUFD and 128-bit VPERMILPS/VPERMILPD.	Craig Topper	2012-02-07
\| \| \| \|	git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149968 91177308-0d34-0410-b5e6-96231b3b80d8
*	Fix issues in shuffle decoding around VPERM* instructions. Fix shuffle ↵	Craig Topper	2011-11-29
\| \| \| \| \| \|	decoding for VSHUFPS/D for 256-bit types. Add pattern matching for memory forms of VPERMILPS/VPERMILPD. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145390 91177308-0d34-0410-b5e6-96231b3b80d8
*	Fix a bug in vpermilps mask checking. Fix PR10560	Bruno Cardoso Lopes	2011-08-10
\| \| \| \|	git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137194 91177308-0d34-0410-b5e6-96231b3b80d8
*	Fix two tests that I crashed in the previous commits. The mask elts	Bruno Cardoso Lopes	2011-07-29
\| \| \| \| \| \|	on the second half must be reindexed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136454 91177308-0d34-0410-b5e6-96231b3b80d8
*	Match VPERMIL masks more strictly and update the target specific mask	Bruno Cardoso Lopes	2011-07-29
\| \| \| \| \| \|	generation to always catch the weird cases. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136453 91177308-0d34-0410-b5e6-96231b3b80d8
*	Add v8i32 and v4i64 vpermil patterns	Bruno Cardoso Lopes	2011-07-29
\| \| \| \|	git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136451 91177308-0d34-0410-b5e6-96231b3b80d8
*	The vpermilps and vpermilpd have different behaviour regarding the	Bruno Cardoso Lopes	2011-07-27
	usage of the shuffle bitmask. Both work in 128-bit lanes without crossing, but in the former the mask of the high part is the same used by the low part while in the later both lanes have independent masks. Handle this properly and and add support for vpermilpd. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136200 91177308-0d34-0410-b5e6-96231b3b80d8