Nate Begeman 95743d8748 Add the minimal amount of smarts necessary to instcombine of shufflevectors to recognize ... patterns generated by clang for transpose of a matrix in generic vectors. This is made of two parts: 1) Propagating vector extracts of hi/lo half into their users 2) Recognizing an insertion of even elements followed by the odd elements as an unpack. Testcase to come, but this shrinks the # of shuffle instructions generated on x86 from ~40 to the minimal 8. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110734 91177308-0d34-0410-b5e6-96231b3b80d8		2010-08-10 21:38:12 +00:00
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InstCombine	Add the minimal amount of smarts necessary to instcombine of shufflevectors to recognize	2010-08-10 21:38:12 +00:00
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Utils
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