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dac67649f2
This patch adds a new property: isExtractSubreg and the related target hooks: TargetIntrInfo::getExtractSubregInputs and TargetInstrInfo::getExtractSubregLikeInputs to specify that a target specific instruction is a (kind of) EXTRACT_SUBREG. The approach is similar to r215394. <rdar://problem/12702965> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216130 91177308-0d34-0410-b5e6-96231b3b80d8
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