[llvm] [PowerPC] FIX llc crashed at -O1/O2/O3: Assertion `isImm() && "Wrong MachineOperand mutator"' failed. (PR #170548)

[Yanzuo Liu via llvm-commits]

zwuis wrote:

> Fixed issue 
> [[PowerPC] llc crashed at -O1/O2/O3: Assertion `isImm() && "Wrong MachineOperand mutator"' failed.](https://github.com/llvm/llvm-project/issues/167672)

You can use [this syntax](https://docs.github.com/en/issues/tracking-your-work-with-issues/linking-a-pull-request-to-an-issue).

https://github.com/llvm/llvm-project/pull/170548