Craig Topper
ffae2f8986
Allow 256-bit shuffles to be split if a 128-bit lane contains elements from a single source. This is a rewrite of the 256-bit shuffle splitting code based on similar code from legalize types. Fixes PR12413.
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llvm-svn: 154166
2012-04-06 07:45:23 +00:00
Craig Topper
a8a69356e1
Add instruction selection for 256-bit VPSHUFD and 128-bit VPERMILPS/VPERMILPD.
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llvm-svn: 149968
2012-02-07 06:28:42 +00:00
Craig Topper
4550fc2649
Fix issues in shuffle decoding around VPERM* instructions. Fix shuffle decoding for VSHUFPS/D for 256-bit types. Add pattern matching for memory forms of VPERMILPS/VPERMILPD.
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llvm-svn: 145390
2011-11-29 07:49:05 +00:00
Bruno Cardoso Lopes
4a435a361d
Fix a bug in vpermilps mask checking. Fix PR10560
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llvm-svn: 137194
2011-08-10 01:54:17 +00:00
Bruno Cardoso Lopes
871df895f4
Fix two tests that I crashed in the previous commits. The mask elts
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on the second half must be reindexed.
llvm-svn: 136454
2011-07-29 02:05:28 +00:00
Bruno Cardoso Lopes
2b3d85d81c
Match VPERMIL masks more strictly and update the target specific mask
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generation to always catch the weird cases.
llvm-svn: 136453
2011-07-29 01:31:15 +00:00
Bruno Cardoso Lopes
473d982caf
Add v8i32 and v4i64 vpermil patterns
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llvm-svn: 136451
2011-07-29 01:31:07 +00:00
Bruno Cardoso Lopes
8830fde434
The vpermilps and vpermilpd have different behaviour regarding the
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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.
llvm-svn: 136200
2011-07-27 00:56:34 +00:00
