[llvm-dev] Set InstrItinData for RegPair (original) (raw)

陳韋任 via llvm-dev llvm-dev at lists.llvm.org
Tue Nov 7 05:51:04 PST 2017


Hi All,

Say we implement i64 as register pair, then a load i64 instruction might look like this:

A0_A1 = load64 A2

I am not sure how to set InstrItinData properly. Should I treat A0_A1 as one, or two operands? MI treats A0_A1 as one operand, maybe I should align InstrItinData with MI? Thanks.

Regards, chenwj

-- Wei-Ren Chen (陳韋任) Homepage: https://people.cs.nctu.edu.tw/~chenwj -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20171107/495ee8b5/attachment.html>



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