search for: jumptablehead

I am working on a back end for an architecture whose jump via table instruction includes the range check. Therefore I don't need the range check generated (in SelectionDAGBuilder ?). There appears to be a struct JumpTableHeader which contains a field OmitRangeCheck which, when true, does what I want. However, there doesn't appear to be a mechanism for a back end to set it. Anyone have any ideas? Thanks, brian

Hi, all I am interested in how jump-table representated in DAG. I find the method visitJumpTable will Emit JumpTable node in the current MBB. visitJumpTableHeader - This function emits necessary code to produce index in the JumpTable from switch case. but how switch case emits? I would like to make this clearly. Thanks, yaoxiao -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev...