[PATCH] D119934: [RISCV] Fix a mistake in PostprocessISelDAG

[Haocong Lu via Phabricator via llvm-commits]

Luhaocong added a comment.

In D119934#3326658 <https://reviews.llvm.org/D119934#3326658>, @craig.topper wrote:

> Do you have test case?

`store i64 %inc, i64* @g_8` is the root node of CurDAG，with `N->use_empty()` is `true`


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