[PATCH] D116399: [AVR] Fix a bug of register allocation

Tue Jan 4 05:17:06 PST 2022

benshi001 added a comment.

In D116399#3218107 <https://reviews.llvm.org/D116399#3218107>, @aykevl wrote:

> Can you explain what the bug is and why this patch fixes it? I find it hard to interpret the diff.

The bug is recorded at https://github.com/llvm/llvm-project/issues/52839

There is a crash caused by the implicit operand `RegZ` is explicitly specified when calling `CurDAG->getMachineNode`.

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