[LLVMdev] A Problem about LLVM Backend Port

[Ziqiang Patrick Huang]

This means your backend does not natively support this SDNode. You have to
use the DAG Legalizer to either promote, expand, or customize it.

See http://llvm.org/docs/CodeGenerator.html#selectiondag-legalizetypes-phase

Hope this helps,
Ziqiang

2015-02-02 9:55 GMT-05:00 Zhang Yinan <ictzyn at gmail.com>:

> I am porting llvm backend to our own target backend, which is based on
> MIPS arch. But I come across  a problem when I  run “llc -march=(our
> processor name) sum.ll” at the DAGtoDAG stage:
> ”LLVM ERROR: can’t select i32=FrameIndex<0> [ID] = 3 “
>
> — zyn
>
>
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