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55ba8fba75
track of how to deal with it, and provide the target with a hook that they can use to legalize arbitrary operations in arbitrary ways. Implement custom lowering for a couple of ops, implement promotion for select operations (which x86 needs). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19613 91177308-0d34-0410-b5e6-96231b3b80d8
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