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72b41227d8
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2 Commits

Author SHA1 Message Date
Craig Topper
72b41227d8 Merge isSHUFPMask and isCommutedSHUFPMask into single function that can do both. Do the same for the 256-bit version. Use loops to reduce size of isVSHUFPYMask. Fix test cases that were incorrectly passing due to isCommutedSHUFPMask not checking for the vector being 128-bit. This caused some 256-bit shuffles to be incorrectly commuted. 
llvm-svn: 145921
 2011-12-06 04:59:07 +00:00
Bruno Cardoso Lopes
2d100ca13c The VPERM2F128 is a AVX instruction which permutes between two 256-bit 
vectors. It operates on 128-bit elements instead of regular scalar
types. Recognize shuffles that are suitable for VPERM2F128 and teach
the x86 legalizer how to handle them.

llvm-svn: 137519
 2011-08-12 21:48:26 +00:00