Pengcheng Wang 3ef78188d0 [PowerPC] Use RegisterClassInfo::getRegPressureSetLimit (#120383) ...

`RegisterClassInfo::getRegPressureSetLimit` is a wrapper of
`TargetRegisterInfo::getRegPressureSetLimit` with some logics to
adjust the limit by removing reserved registers.

It seems that we shouldn't use
`TargetRegisterInfo::getRegPressureSetLimit`
directly, just like the comment "This limit must be adjusted
dynamically for reserved registers" said.

Separate from https://github.com/llvm/llvm-project/pull/118787

2025-01-03 16:41:18 +08:00

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